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Twee---2.7.UNS-Prf.s

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%------------------------------------------------------------------------------
% File     : Twee---2.7
% Problem  : LCL402-1 : TPTP v9.3.1. Released v2.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_twee /export/starexec/sandbox2/benchmark/theBenchmark.p

% Computer : n007.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8046.5625MB
% OS       : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Tue Sep 29 11:49:46 AM UTC 2026

% Result   : Unsatisfiable 58.88s 7.91s
% Output   : Proof 140.95s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03  % Problem  : LCL402-1 : TPTP v9.3.1. Released v2.3.0.
% 0.00/0.04  % Command  : run_twee /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.10/0.37  % Computer : n007.cluster.edu
% 0.10/0.37  % Model    : x86_64 x86_64
% 0.10/0.37  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.37  % Memory   : 8046.5625MB
% 0.10/0.37  % OS       : Linux 6.8.0-71-generic
% 0.10/0.37  % CPULimit : 300
% 0.10/0.37  % WCLimit  : 300
% 0.10/0.37  % DateTime : Sun Sep 27 15:38:09 UTC 2026
% 0.10/0.38  % CPUTime  : 
% 0.10/0.38  Running run_twee /export/starexec/sandbox2/benchmark/theBenchmark.p
% 58.88/7.91  Command-line arguments: --no-flatten-goal
% 58.88/7.91  
% 58.88/7.91  % SZS status Unsatisfiable
% 58.88/7.91  
% 119.08/17.51  % SZS output start Proof
% 119.08/17.51  Axiom 1 (ifeq_axiom): ifeq(X, X, Y, Z) = Y.
% 119.08/17.51  Axiom 2 (cn_3): is_a_theorem(implies(X, implies(not(X), Y))) = true.
% 119.08/17.51  Axiom 3 (cn_2): is_a_theorem(implies(implies(not(X), X), X)) = true.
% 119.08/17.51  Axiom 4 (condensed_detachment): ifeq(is_a_theorem(implies(X, Y)), true, ifeq(is_a_theorem(X), true, is_a_theorem(Y), true), true) = true.
% 119.78/17.64  Axiom 5 (cn_1): is_a_theorem(implies(implies(X, Y), implies(implies(Y, Z), implies(X, Z)))) = true.
% 119.78/17.64  
% 119.78/17.64  Goal 1 (prove_cn_68): is_a_theorem(implies(not(implies(x, not(y))), y)) = true.
% 119.78/17.64  Proof:
% 119.78/17.64    is_a_theorem(implies(not(implies(x, not(y))), y))
% 119.78/17.64  = { by axiom 1 (ifeq_axiom) R->L }
% 119.78/17.64    ifeq(true, true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 119.78/17.64  = { by axiom 4 (condensed_detachment) R->L }
% 119.78/17.64    ifeq(ifeq(is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 119.78/17.64  = { by axiom 1 (ifeq_axiom) R->L }
% 119.78/17.64    ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 119.78/17.64  = { by axiom 4 (condensed_detachment) R->L }
% 119.78/17.64    ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y)))))))), true, ifeq(is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 119.78/17.64  = { by axiom 5 (cn_1) }
% 119.78/17.64    ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 119.78/17.64  = { by axiom 1 (ifeq_axiom) }
% 119.78/17.64    ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 119.78/17.64  = { by axiom 1 (ifeq_axiom) R->L }
% 119.78/17.64    ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 119.78/17.65  = { by axiom 4 (condensed_detachment) R->L }
% 119.78/17.65    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))))), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 119.78/17.65  = { by axiom 1 (ifeq_axiom) R->L }
% 119.78/17.65    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 119.78/17.65  = { by axiom 5 (cn_1) R->L }
% 119.78/17.65    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, is_a_theorem(implies(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 119.78/17.65  = { by axiom 1 (ifeq_axiom) R->L }
% 119.78/17.65    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, is_a_theorem(implies(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 119.78/17.66  = { by axiom 5 (cn_1) R->L }
% 119.78/17.66    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y))))), implies(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))))), true, ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, is_a_theorem(implies(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 119.78/17.66  = { by axiom 4 (condensed_detachment) }
% 119.78/17.66    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 119.78/17.66  = { by axiom 1 (ifeq_axiom) }
% 119.78/17.66    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 119.78/17.66  = { by axiom 1 (ifeq_axiom) R->L }
% 119.78/17.66    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 119.78/17.67  = { by axiom 4 (condensed_detachment) R->L }
% 119.78/17.67    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y)))))), true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 119.78/17.67  = { by axiom 1 (ifeq_axiom) R->L }
% 119.78/17.67    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 119.78/17.67  = { by axiom 4 (condensed_detachment) R->L }
% 119.78/17.67    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y)))), implies(not(y), implies(x, implies(not(not(y)), not(y)))))), true, ifeq(is_a_theorem(implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y))))), true, is_a_theorem(implies(not(y), implies(x, implies(not(not(y)), not(y))))), true), true), true, is_a_theorem(implies(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 119.78/17.68  = { by axiom 1 (ifeq_axiom) R->L }
% 119.78/17.68    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y)))), implies(not(y), implies(x, implies(not(not(y)), not(y)))))), true, ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y))))), true), true, is_a_theorem(implies(not(y), implies(x, implies(not(not(y)), not(y))))), true), true), true, is_a_theorem(implies(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 119.78/17.68  = { by axiom 5 (cn_1) R->L }
% 119.78/17.68    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y)))), implies(not(y), implies(x, implies(not(not(y)), not(y)))))), true, ifeq(ifeq(is_a_theorem(implies(implies(x, implies(not(x), not(y))), implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y)))))), true, is_a_theorem(implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y))))), true), true, is_a_theorem(implies(not(y), implies(x, implies(not(not(y)), not(y))))), true), true), true, is_a_theorem(implies(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 119.78/17.68  = { by axiom 1 (ifeq_axiom) R->L }
% 119.78/17.69    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y)))), implies(not(y), implies(x, implies(not(not(y)), not(y)))))), true, ifeq(ifeq(is_a_theorem(implies(implies(x, implies(not(x), not(y))), implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y)))))), true, ifeq(true, true, is_a_theorem(implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y))))), true), true), true, is_a_theorem(implies(not(y), implies(x, implies(not(not(y)), not(y))))), true), true), true, is_a_theorem(implies(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 119.78/17.69  = { by axiom 2 (cn_3) R->L }
% 119.78/17.69    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y)))), implies(not(y), implies(x, implies(not(not(y)), not(y)))))), true, ifeq(ifeq(is_a_theorem(implies(implies(x, implies(not(x), not(y))), implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y)))))), true, ifeq(is_a_theorem(implies(x, implies(not(x), not(y)))), true, is_a_theorem(implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y))))), true), true), true, is_a_theorem(implies(not(y), implies(x, implies(not(not(y)), not(y))))), true), true), true, is_a_theorem(implies(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 119.78/17.69  = { by axiom 4 (condensed_detachment) }
% 119.78/17.69    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y)))), implies(not(y), implies(x, implies(not(not(y)), not(y)))))), true, ifeq(true, true, is_a_theorem(implies(not(y), implies(x, implies(not(not(y)), not(y))))), true), true), true, is_a_theorem(implies(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 119.78/17.70  = { by axiom 1 (ifeq_axiom) }
% 119.78/17.70    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y)))), implies(not(y), implies(x, implies(not(not(y)), not(y)))))), true, is_a_theorem(implies(not(y), implies(x, implies(not(not(y)), not(y))))), true), true, is_a_theorem(implies(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.70  = { by axiom 1 (ifeq_axiom) R->L }
% 120.49/17.70    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y)))), implies(not(y), implies(x, implies(not(not(y)), not(y)))))), true), true, is_a_theorem(implies(not(y), implies(x, implies(not(not(y)), not(y))))), true), true, is_a_theorem(implies(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.70  = { by axiom 4 (condensed_detachment) R->L }
% 120.49/17.71    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(y)), not(x)), implies(implies(not(x), not(y)), implies(not(not(y)), not(y)))), implies(not(y), implies(implies(not(x), not(y)), implies(not(not(y)), not(y)))))), true, ifeq(is_a_theorem(implies(implies(not(not(y)), not(x)), implies(implies(not(x), not(y)), implies(not(not(y)), not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(x), not(y)), implies(not(not(y)), not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y)))), implies(not(y), implies(x, implies(not(not(y)), not(y)))))), true), true, is_a_theorem(implies(not(y), implies(x, implies(not(not(y)), not(y))))), true), true, is_a_theorem(implies(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.71  = { by axiom 1 (ifeq_axiom) R->L }
% 120.49/17.71    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(y)), not(x)), implies(implies(not(x), not(y)), implies(not(not(y)), not(y)))), implies(not(y), implies(implies(not(x), not(y)), implies(not(not(y)), not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(y)), not(x)), implies(implies(not(x), not(y)), implies(not(not(y)), not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(x), not(y)), implies(not(not(y)), not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y)))), implies(not(y), implies(x, implies(not(not(y)), not(y)))))), true), true, is_a_theorem(implies(not(y), implies(x, implies(not(not(y)), not(y))))), true), true, is_a_theorem(implies(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.71  = { by axiom 5 (cn_1) R->L }
% 120.49/17.72    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(y), implies(not(not(y)), not(x))), implies(implies(implies(not(not(y)), not(x)), implies(implies(not(x), not(y)), implies(not(not(y)), not(y)))), implies(not(y), implies(implies(not(x), not(y)), implies(not(not(y)), not(y))))))), true, is_a_theorem(implies(implies(implies(not(not(y)), not(x)), implies(implies(not(x), not(y)), implies(not(not(y)), not(y)))), implies(not(y), implies(implies(not(x), not(y)), implies(not(not(y)), not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(y)), not(x)), implies(implies(not(x), not(y)), implies(not(not(y)), not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(x), not(y)), implies(not(not(y)), not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y)))), implies(not(y), implies(x, implies(not(not(y)), not(y)))))), true), true, is_a_theorem(implies(not(y), implies(x, implies(not(not(y)), not(y))))), true), true, is_a_theorem(implies(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.72  = { by axiom 1 (ifeq_axiom) R->L }
% 120.49/17.72    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(y), implies(not(not(y)), not(x))), implies(implies(implies(not(not(y)), not(x)), implies(implies(not(x), not(y)), implies(not(not(y)), not(y)))), implies(not(y), implies(implies(not(x), not(y)), implies(not(not(y)), not(y))))))), true, ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(y)), not(x)), implies(implies(not(x), not(y)), implies(not(not(y)), not(y)))), implies(not(y), implies(implies(not(x), not(y)), implies(not(not(y)), not(y)))))), true), true), true, ifeq(is_a_theorem(implies(implies(not(not(y)), not(x)), implies(implies(not(x), not(y)), implies(not(not(y)), not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(x), not(y)), implies(not(not(y)), not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y)))), implies(not(y), implies(x, implies(not(not(y)), not(y)))))), true), true, is_a_theorem(implies(not(y), implies(x, implies(not(not(y)), not(y))))), true), true, is_a_theorem(implies(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.72  = { by axiom 2 (cn_3) R->L }
% 120.49/17.72    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(y), implies(not(not(y)), not(x))), implies(implies(implies(not(not(y)), not(x)), implies(implies(not(x), not(y)), implies(not(not(y)), not(y)))), implies(not(y), implies(implies(not(x), not(y)), implies(not(not(y)), not(y))))))), true, ifeq(is_a_theorem(implies(not(y), implies(not(not(y)), not(x)))), true, is_a_theorem(implies(implies(implies(not(not(y)), not(x)), implies(implies(not(x), not(y)), implies(not(not(y)), not(y)))), implies(not(y), implies(implies(not(x), not(y)), implies(not(not(y)), not(y)))))), true), true), true, ifeq(is_a_theorem(implies(implies(not(not(y)), not(x)), implies(implies(not(x), not(y)), implies(not(not(y)), not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(x), not(y)), implies(not(not(y)), not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y)))), implies(not(y), implies(x, implies(not(not(y)), not(y)))))), true), true, is_a_theorem(implies(not(y), implies(x, implies(not(not(y)), not(y))))), true), true, is_a_theorem(implies(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.73  = { by axiom 4 (condensed_detachment) }
% 120.49/17.73    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(not(not(y)), not(x)), implies(implies(not(x), not(y)), implies(not(not(y)), not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(x), not(y)), implies(not(not(y)), not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y)))), implies(not(y), implies(x, implies(not(not(y)), not(y)))))), true), true, is_a_theorem(implies(not(y), implies(x, implies(not(not(y)), not(y))))), true), true, is_a_theorem(implies(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.73  = { by axiom 1 (ifeq_axiom) }
% 120.49/17.73    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(y)), not(x)), implies(implies(not(x), not(y)), implies(not(not(y)), not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(x), not(y)), implies(not(not(y)), not(y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y)))), implies(not(y), implies(x, implies(not(not(y)), not(y)))))), true), true, is_a_theorem(implies(not(y), implies(x, implies(not(not(y)), not(y))))), true), true, is_a_theorem(implies(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.73  = { by axiom 5 (cn_1) }
% 120.49/17.74    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(not(y), implies(implies(not(x), not(y)), implies(not(not(y)), not(y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y)))), implies(not(y), implies(x, implies(not(not(y)), not(y)))))), true), true, is_a_theorem(implies(not(y), implies(x, implies(not(not(y)), not(y))))), true), true, is_a_theorem(implies(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.74  = { by axiom 1 (ifeq_axiom) }
% 120.49/17.74    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(not(y), implies(implies(not(x), not(y)), implies(not(not(y)), not(y))))), true, is_a_theorem(implies(implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y)))), implies(not(y), implies(x, implies(not(not(y)), not(y)))))), true), true, is_a_theorem(implies(not(y), implies(x, implies(not(not(y)), not(y))))), true), true, is_a_theorem(implies(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.74  = { by axiom 1 (ifeq_axiom) R->L }
% 120.49/17.74    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(not(y), implies(implies(not(x), not(y)), implies(not(not(y)), not(y))))), true, is_a_theorem(implies(implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y)))), implies(not(y), implies(x, implies(not(not(y)), not(y)))))), true), true), true, is_a_theorem(implies(not(y), implies(x, implies(not(not(y)), not(y))))), true), true, is_a_theorem(implies(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.74  = { by axiom 5 (cn_1) R->L }
% 120.49/17.75    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(y), implies(implies(not(x), not(y)), implies(not(not(y)), not(y)))), implies(implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y)))), implies(not(y), implies(x, implies(not(not(y)), not(y))))))), true, ifeq(is_a_theorem(implies(not(y), implies(implies(not(x), not(y)), implies(not(not(y)), not(y))))), true, is_a_theorem(implies(implies(implies(implies(not(x), not(y)), implies(not(not(y)), not(y))), implies(x, implies(not(not(y)), not(y)))), implies(not(y), implies(x, implies(not(not(y)), not(y)))))), true), true), true, is_a_theorem(implies(not(y), implies(x, implies(not(not(y)), not(y))))), true), true, is_a_theorem(implies(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.75  = { by axiom 4 (condensed_detachment) }
% 120.49/17.75    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(not(y), implies(x, implies(not(not(y)), not(y))))), true), true, is_a_theorem(implies(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.75  = { by axiom 1 (ifeq_axiom) }
% 120.49/17.75    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(not(y), implies(x, implies(not(not(y)), not(y))))), true, is_a_theorem(implies(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.75  = { by axiom 1 (ifeq_axiom) R->L }
% 120.49/17.75    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(not(y), implies(x, implies(not(not(y)), not(y))))), true, is_a_theorem(implies(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true), true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.75  = { by axiom 5 (cn_1) R->L }
% 120.49/17.76    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(y), implies(x, implies(not(not(y)), not(y)))), implies(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))))), true, ifeq(is_a_theorem(implies(not(y), implies(x, implies(not(not(y)), not(y))))), true, is_a_theorem(implies(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true), true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.76  = { by axiom 4 (condensed_detachment) }
% 120.49/17.76    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.76  = { by axiom 1 (ifeq_axiom) }
% 120.49/17.76    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.76  = { by axiom 1 (ifeq_axiom) R->L }
% 120.49/17.76    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.76  = { by axiom 4 (condensed_detachment) R->L }
% 120.49/17.77    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(y), not(y)), implies(implies(not(not(y)), not(y)), not(y))), implies(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(x, not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))))), true, ifeq(is_a_theorem(implies(implies(not(y), not(y)), implies(implies(not(not(y)), not(y)), not(y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(x, not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.77  = { by axiom 5 (cn_1) }
% 120.49/17.77    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(not(y), not(y)), implies(implies(not(not(y)), not(y)), not(y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(x, not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.77  = { by axiom 1 (ifeq_axiom) }
% 120.49/17.77    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(y), not(y)), implies(implies(not(not(y)), not(y)), not(y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(x, not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.77  = { by axiom 1 (ifeq_axiom) R->L }
% 120.49/17.77    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(not(y), not(y)), implies(implies(not(not(y)), not(y)), not(y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(x, not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.78  = { by axiom 5 (cn_1) R->L }
% 120.49/17.78    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(implies(not(y), not(y)), implies(implies(not(not(y)), not(y)), not(y))))), true, is_a_theorem(implies(implies(not(y), not(y)), implies(implies(not(not(y)), not(y)), not(y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(x, not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.78  = { by axiom 1 (ifeq_axiom) R->L }
% 120.49/17.78    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(implies(not(y), not(y)), implies(implies(not(not(y)), not(y)), not(y))))), true, ifeq(true, true, is_a_theorem(implies(implies(not(y), not(y)), implies(implies(not(not(y)), not(y)), not(y)))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(x, not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.78  = { by axiom 3 (cn_2) R->L }
% 120.49/17.78    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(implies(not(y), not(y)), implies(implies(not(not(y)), not(y)), not(y))))), true, ifeq(is_a_theorem(implies(implies(not(not(y)), not(y)), not(y))), true, is_a_theorem(implies(implies(not(y), not(y)), implies(implies(not(not(y)), not(y)), not(y)))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(x, not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.78  = { by axiom 4 (condensed_detachment) }
% 120.49/17.79    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(x, not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.79  = { by axiom 1 (ifeq_axiom) }
% 120.49/17.79    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(x, not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.79  = { by axiom 1 (ifeq_axiom) R->L }
% 120.49/17.79    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(x, not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.79  = { by axiom 4 (condensed_detachment) R->L }
% 120.49/17.80    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(implies(not(not(y)), not(y)), not(y)), implies(x, not(y)))), implies(implies(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(x, not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))))), true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(implies(not(not(y)), not(y)), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(implies(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(x, not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(x, not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 120.49/17.80  = { by axiom 5 (cn_1) }
% 121.21/17.80    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(implies(not(not(y)), not(y)), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(implies(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(x, not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(x, not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.80  = { by axiom 1 (ifeq_axiom) }
% 121.21/17.80    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(implies(not(not(y)), not(y)), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(implies(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(x, not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(x, not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.80  = { by axiom 5 (cn_1) }
% 121.21/17.80    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(x, not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(x, not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.81  = { by axiom 1 (ifeq_axiom) }
% 121.21/17.81    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(x, not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y)))))), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(x, not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(implies(x, implies(not(not(y)), not(y))), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true), true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.81  = { by axiom 4 (condensed_detachment) }
% 121.21/17.81    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.81  = { by axiom 1 (ifeq_axiom) }
% 121.21/17.81    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.81  = { by axiom 1 (ifeq_axiom) R->L }
% 121.21/17.81    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.81  = { by axiom 5 (cn_1) R->L }
% 121.21/17.81    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y)))), implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))))), true, ifeq(is_a_theorem(implies(not(y), implies(implies(not(y), not(y)), implies(x, not(y))))), true, is_a_theorem(implies(implies(implies(implies(not(y), not(y)), implies(x, not(y))), implies(not(implies(x, not(y))), implies(x, not(y)))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.81  = { by axiom 4 (condensed_detachment) }
% 121.21/17.82    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.82  = { by axiom 1 (ifeq_axiom) }
% 121.21/17.82    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.82  = { by axiom 1 (ifeq_axiom) R->L }
% 121.21/17.82    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(true, true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.82  = { by axiom 4 (condensed_detachment) R->L }
% 121.21/17.82    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true, ifeq(is_a_theorem(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y)))), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.82  = { by axiom 3 (cn_2) }
% 121.21/17.82    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true, ifeq(true, true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.82  = { by axiom 1 (ifeq_axiom) }
% 121.21/17.83    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.83  = { by axiom 1 (ifeq_axiom) R->L }
% 121.21/17.83    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.83  = { by axiom 4 (condensed_detachment) R->L }
% 121.21/17.83    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y)))), implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y)))))), true, ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.83  = { by axiom 1 (ifeq_axiom) R->L }
% 121.21/17.84    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y)))), implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.84  = { by axiom 5 (cn_1) R->L }
% 121.21/17.84    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(not(implies(x, not(y)))), implies(not(y), not(y)))), implies(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y)))), implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))))), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y)))), implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y)))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.84  = { by axiom 1 (ifeq_axiom) R->L }
% 121.21/17.84    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(not(implies(x, not(y)))), implies(not(y), not(y)))), implies(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y)))), implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))))), true, ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y)))), implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y)))))), true), true), true, ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.84  = { by axiom 2 (cn_3) R->L }
% 121.21/17.85    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(not(implies(x, not(y)))), implies(not(y), not(y)))), implies(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y)))), implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))))), true, ifeq(is_a_theorem(implies(not(implies(x, not(y))), implies(not(not(implies(x, not(y)))), implies(not(y), not(y))))), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y)))), implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y)))))), true), true), true, ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.85  = { by axiom 4 (condensed_detachment) }
% 121.21/17.85    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.85  = { by axiom 1 (ifeq_axiom) }
% 121.21/17.85    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.85  = { by axiom 1 (ifeq_axiom) R->L }
% 121.21/17.85    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.86  = { by axiom 4 (condensed_detachment) R->L }
% 121.21/17.86    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(y), not(y)), implies(not(implies(not(y), not(y))), not(not(implies(x, not(y))))))), true, ifeq(is_a_theorem(implies(not(y), not(y))), true, is_a_theorem(implies(not(implies(not(y), not(y))), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.86  = { by axiom 2 (cn_3) }
% 121.21/17.86    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(not(y), not(y))), true, is_a_theorem(implies(not(implies(not(y), not(y))), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.86  = { by axiom 1 (ifeq_axiom) }
% 121.21/17.86    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(not(y), not(y))), true, is_a_theorem(implies(not(implies(not(y), not(y))), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.87  = { by axiom 1 (ifeq_axiom) R->L }
% 121.21/17.87    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(not(y), not(y))), true), true, is_a_theorem(implies(not(implies(not(y), not(y))), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.87  = { by axiom 4 (condensed_detachment) R->L }
% 121.21/17.87    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(y), implies(not(not(y)), not(y))), implies(implies(implies(not(not(y)), not(y)), not(y)), implies(not(y), not(y))))), true, ifeq(is_a_theorem(implies(not(y), implies(not(not(y)), not(y)))), true, is_a_theorem(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(not(y), not(y)))), true), true), true, is_a_theorem(implies(not(y), not(y))), true), true, is_a_theorem(implies(not(implies(not(y), not(y))), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.89  = { by axiom 2 (cn_3) }
% 121.21/17.89    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(y), implies(not(not(y)), not(y))), implies(implies(implies(not(not(y)), not(y)), not(y)), implies(not(y), not(y))))), true, ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(not(y), not(y)))), true), true), true, is_a_theorem(implies(not(y), not(y))), true), true, is_a_theorem(implies(not(implies(not(y), not(y))), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.89  = { by axiom 1 (ifeq_axiom) }
% 121.21/17.89    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(y), implies(not(not(y)), not(y))), implies(implies(implies(not(not(y)), not(y)), not(y)), implies(not(y), not(y))))), true, is_a_theorem(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), not(y))), true), true, is_a_theorem(implies(not(implies(not(y), not(y))), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.89  = { by axiom 5 (cn_1) }
% 121.21/17.89    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), not(y))), true), true, is_a_theorem(implies(not(implies(not(y), not(y))), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.21/17.90  = { by axiom 1 (ifeq_axiom) }
% 121.21/17.90    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(not(y), not(y)))), true, is_a_theorem(implies(not(y), not(y))), true), true, is_a_theorem(implies(not(implies(not(y), not(y))), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.90  = { by axiom 1 (ifeq_axiom) R->L }
% 121.91/17.90    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(not(y), not(y)))), true, ifeq(true, true, is_a_theorem(implies(not(y), not(y))), true), true), true, is_a_theorem(implies(not(implies(not(y), not(y))), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.90  = { by axiom 3 (cn_2) R->L }
% 121.91/17.90    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(y)), not(y)), not(y)), implies(not(y), not(y)))), true, ifeq(is_a_theorem(implies(implies(not(not(y)), not(y)), not(y))), true, is_a_theorem(implies(not(y), not(y))), true), true), true, is_a_theorem(implies(not(implies(not(y), not(y))), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.90  = { by axiom 4 (condensed_detachment) }
% 121.91/17.90    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(not(implies(not(y), not(y))), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.91  = { by axiom 1 (ifeq_axiom) }
% 121.91/17.91    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(not(implies(not(y), not(y))), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.91  = { by axiom 1 (ifeq_axiom) R->L }
% 121.91/17.91    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(not(implies(not(y), not(y))), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.91  = { by axiom 5 (cn_1) R->L }
% 121.91/17.91    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(not(y), not(y))), not(not(implies(x, not(y))))), implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y)))))), true, ifeq(is_a_theorem(implies(not(implies(not(y), not(y))), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(y), not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.91  = { by axiom 4 (condensed_detachment) }
% 121.91/17.91    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.91  = { by axiom 1 (ifeq_axiom) }
% 121.91/17.92    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(is_a_theorem(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.92  = { by axiom 1 (ifeq_axiom) R->L }
% 121.91/17.92    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.92  = { by axiom 5 (cn_1) R->L }
% 121.91/17.92    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y)))), implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y)))))), true, ifeq(is_a_theorem(implies(not(implies(x, not(y))), implies(not(implies(not(y), not(y))), implies(not(y), not(y))))), true, is_a_theorem(implies(implies(implies(not(implies(not(y), not(y))), implies(not(y), not(y))), implies(not(y), not(y))), implies(not(implies(x, not(y))), implies(not(y), not(y))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.92  = { by axiom 4 (condensed_detachment) }
% 121.91/17.92    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(ifeq(true, true, is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.92  = { by axiom 1 (ifeq_axiom) }
% 121.91/17.92    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(y), not(y))), implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y)))))), true, ifeq(is_a_theorem(implies(not(implies(x, not(y))), implies(not(y), not(y)))), true, is_a_theorem(implies(not(y), implies(not(implies(x, not(y))), implies(x, not(y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.92  = { by axiom 4 (condensed_detachment) }
% 121.91/17.92    ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.92  = { by axiom 1 (ifeq_axiom) }
% 121.91/17.92    ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.92  = { by axiom 1 (ifeq_axiom) R->L }
% 121.91/17.92    ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.92  = { by axiom 4 (condensed_detachment) R->L }
% 121.91/17.92    ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y)))))), implies(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y)))))), implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))))), true, ifeq(is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y)))))), implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y)))))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.92  = { by axiom 5 (cn_1) }
% 121.91/17.93    ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y)))))), implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y)))))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.93  = { by axiom 1 (ifeq_axiom) }
% 121.91/17.93    ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y)))))), implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.93  = { by axiom 1 (ifeq_axiom) R->L }
% 121.91/17.93    ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y)))))), implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.93  = { by axiom 5 (cn_1) R->L }
% 121.91/17.93    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), implies(x, not(y))), implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y)))))), implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.93  = { by axiom 1 (ifeq_axiom) R->L }
% 121.91/17.93    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), implies(x, not(y))), implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y)))))))), true, ifeq(true, true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y)))))), implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.93  = { by axiom 3 (cn_2) R->L }
% 121.91/17.93    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), implies(x, not(y))), implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y)))))))), true, ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(x, not(y))), implies(x, not(y)))), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y)))))), implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.93  = { by axiom 4 (condensed_detachment) }
% 121.91/17.93    ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y)))))), implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.93  = { by axiom 1 (ifeq_axiom) }
% 121.91/17.93    ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y)))))), implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y)))))))), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(x, not(y))), implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(implies(x, not(y)), not(not(implies(x, not(y))))), implies(not(y), not(not(implies(x, not(y))))))), true), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.93  = { by axiom 4 (condensed_detachment) }
% 121.91/17.93    ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.93  = { by axiom 1 (ifeq_axiom) }
% 121.91/17.93    ifeq(ifeq(is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.94  = { by axiom 1 (ifeq_axiom) R->L }
% 121.91/17.94    ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.94  = { by axiom 4 (condensed_detachment) R->L }
% 121.91/17.94    ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true, ifeq(is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.94  = { by axiom 1 (ifeq_axiom) R->L }
% 121.91/17.94    ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.94  = { by axiom 4 (condensed_detachment) R->L }
% 121.91/17.94    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))))), true, ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true), true), true, is_a_theorem(implies(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.94  = { by axiom 5 (cn_1) }
% 121.91/17.94    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true), true), true, is_a_theorem(implies(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.95  = { by axiom 1 (ifeq_axiom) }
% 121.91/17.95    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.95  = { by axiom 1 (ifeq_axiom) R->L }
% 121.91/17.95    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.95  = { by axiom 5 (cn_1) R->L }
% 121.91/17.95    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.95  = { by axiom 1 (ifeq_axiom) R->L }
% 121.91/17.96    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true, ifeq(true, true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.96  = { by axiom 3 (cn_2) R->L }
% 121.91/17.96    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true, ifeq(is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.96  = { by axiom 4 (condensed_detachment) }
% 121.91/17.96    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true), true, is_a_theorem(implies(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.96  = { by axiom 1 (ifeq_axiom) }
% 121.91/17.96    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.96  = { by axiom 1 (ifeq_axiom) R->L }
% 121.91/17.96    ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.97  = { by axiom 4 (condensed_detachment) R->L }
% 121.91/17.97    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), implies(implies(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), implies(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))))), true, ifeq(is_a_theorem(implies(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), implies(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.97  = { by axiom 5 (cn_1) }
% 121.91/17.97    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), implies(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.97  = { by axiom 1 (ifeq_axiom) }
% 121.91/17.98    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), implies(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.98  = { by axiom 5 (cn_1) }
% 121.91/17.98    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), implies(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.98  = { by axiom 1 (ifeq_axiom) }
% 121.91/17.98    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), implies(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))))), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y)))))))), true), true), true, ifeq(is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.98  = { by axiom 4 (condensed_detachment) }
% 121.91/17.98    ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.98  = { by axiom 1 (ifeq_axiom) }
% 121.91/17.98    ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.98  = { by axiom 1 (ifeq_axiom) R->L }
% 121.91/17.98    ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.99  = { by axiom 4 (condensed_detachment) R->L }
% 121.91/17.99    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true, ifeq(is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.99  = { by axiom 1 (ifeq_axiom) R->L }
% 121.91/17.99    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.99  = { by axiom 4 (condensed_detachment) R->L }
% 121.91/17.99    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y)))))), implies(implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))))), true, ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true), true, is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/17.99  = { by axiom 5 (cn_1) }
% 121.91/18.00    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true), true, is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/18.00  = { by axiom 1 (ifeq_axiom) }
% 121.91/18.00    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true, is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/18.00  = { by axiom 1 (ifeq_axiom) R->L }
% 121.91/18.00    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true, is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/18.01  = { by axiom 5 (cn_1) R->L }
% 121.91/18.01    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(implies(x, not(y)))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true, is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/18.01  = { by axiom 1 (ifeq_axiom) R->L }
% 121.91/18.01    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(implies(x, not(y)))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y)))))))), true, ifeq(true, true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true, is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/18.01  = { by axiom 3 (cn_2) R->L }
% 121.91/18.01    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(implies(x, not(y)))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y)))))))), true, ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(implies(x, not(y))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true, is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/18.02  = { by axiom 4 (condensed_detachment) }
% 121.91/18.02    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true, is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/18.02  = { by axiom 1 (ifeq_axiom) }
% 121.91/18.02    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/18.02  = { by axiom 1 (ifeq_axiom) R->L }
% 121.91/18.03    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true), true, ifeq(is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 121.91/18.03  = { by axiom 4 (condensed_detachment) R->L }
% 122.84/18.03    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), implies(implies(implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))))), true, ifeq(is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true), true, ifeq(is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 122.84/18.03  = { by axiom 5 (cn_1) }
% 122.84/18.04    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true), true, ifeq(is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 122.84/18.04  = { by axiom 1 (ifeq_axiom) }
% 122.84/18.04    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true), true, ifeq(is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 122.84/18.04  = { by axiom 5 (cn_1) }
% 122.84/18.04    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true), true, ifeq(is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 122.84/18.04  = { by axiom 1 (ifeq_axiom) }
% 122.84/18.04    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))))), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true), true, ifeq(is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 122.84/18.05  = { by axiom 4 (condensed_detachment) }
% 122.84/18.05    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 122.84/18.05  = { by axiom 1 (ifeq_axiom) }
% 122.84/18.05    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 122.84/18.05  = { by axiom 1 (ifeq_axiom) R->L }
% 122.84/18.05    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 122.84/18.06  = { by axiom 4 (condensed_detachment) R->L }
% 122.84/18.06    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))))), true, ifeq(is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 122.84/18.06  = { by axiom 1 (ifeq_axiom) R->L }
% 122.84/18.06    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 122.84/18.07  = { by axiom 4 (condensed_detachment) R->L }
% 122.84/18.07    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y)))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), implies(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y)))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))))))), true, ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y)))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y)))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))))), true), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 122.84/18.07  = { by axiom 5 (cn_1) }
% 122.84/18.07    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y)))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y)))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))))), true), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 122.84/18.08  = { by axiom 1 (ifeq_axiom) }
% 122.84/18.08    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y)))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y)))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 122.84/18.08  = { by axiom 5 (cn_1) }
% 122.84/18.09    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y)))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 122.84/18.09  = { by axiom 1 (ifeq_axiom) }
% 122.84/18.09    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y)))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 122.84/18.10  = { by axiom 1 (ifeq_axiom) R->L }
% 122.84/18.10    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y)))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))))), true, ifeq(true, true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))))), true), true), true, ifeq(is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 122.84/18.11  = { by axiom 4 (condensed_detachment) R->L }
% 122.84/18.11    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y)))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))))), true, ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y))))), implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y)))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))))), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y)))))), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y)))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))))), true), true), true, ifeq(is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 122.84/18.12  = { by axiom 2 (cn_3) }
% 122.84/18.12    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y)))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))))), true, ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y))))), implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y)))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))))), true, ifeq(true, true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y)))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))))), true), true), true, ifeq(is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 122.84/18.12  = { by axiom 1 (ifeq_axiom) }
% 122.84/18.12    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y)))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))))), true, ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y))))), implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y)))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y)))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))))), true), true), true, ifeq(is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 122.84/18.13  = { by axiom 5 (cn_1) }
% 122.84/18.13    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y)))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))))), true, ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y)))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))))), true), true), true, ifeq(is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 122.84/18.13  = { by axiom 1 (ifeq_axiom) }
% 123.54/18.13    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y)))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))))), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(x, not(y)))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))))), true), true), true, ifeq(is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 123.54/18.13  = { by axiom 4 (condensed_detachment) }
% 123.54/18.13    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 123.54/18.14  = { by axiom 1 (ifeq_axiom) }
% 123.54/18.14    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 123.54/18.14  = { by axiom 1 (ifeq_axiom) R->L }
% 123.54/18.14    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 123.54/18.15  = { by axiom 4 (condensed_detachment) R->L }
% 123.54/18.16    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, ifeq(is_a_theorem(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 123.54/18.16  = { by axiom 1 (ifeq_axiom) R->L }
% 123.54/18.17    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, ifeq(ifeq(true, true, is_a_theorem(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 123.54/18.17  = { by axiom 4 (condensed_detachment) R->L }
% 123.54/18.18    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, ifeq(is_a_theorem(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 123.54/18.18  = { by axiom 2 (cn_3) }
% 123.54/18.19    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 123.54/18.19  = { by axiom 1 (ifeq_axiom) }
% 123.54/18.19    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, is_a_theorem(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 124.01/18.20  = { by axiom 5 (cn_1) }
% 124.01/18.20    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 124.01/18.21  = { by axiom 1 (ifeq_axiom) }
% 124.01/18.21    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 124.01/18.21  = { by axiom 1 (ifeq_axiom) R->L }
% 124.01/18.22    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, ifeq(true, true, is_a_theorem(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 124.01/18.22  = { by axiom 3 (cn_2) R->L }
% 124.01/18.22    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, ifeq(is_a_theorem(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 124.01/18.23  = { by axiom 4 (condensed_detachment) }
% 124.01/18.23    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 124.01/18.23  = { by axiom 1 (ifeq_axiom) }
% 124.01/18.24    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 124.01/18.24  = { by axiom 1 (ifeq_axiom) R->L }
% 124.01/18.24    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 124.01/18.25  = { by axiom 4 (condensed_detachment) R->L }
% 124.01/18.26    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 124.01/18.27  = { by axiom 1 (ifeq_axiom) R->L }
% 124.01/18.27    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 124.01/18.28  = { by axiom 4 (condensed_detachment) R->L }
% 124.01/18.29    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, ifeq(is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 124.01/18.30  = { by axiom 3 (cn_2) }
% 124.73/18.30    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 124.73/18.31  = { by axiom 1 (ifeq_axiom) }
% 124.73/18.32    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 124.73/18.32  = { by axiom 5 (cn_1) }
% 124.73/18.33    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 124.73/18.34  = { by axiom 1 (ifeq_axiom) }
% 124.73/18.34    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 124.73/18.35  = { by axiom 1 (ifeq_axiom) R->L }
% 124.73/18.35    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 124.73/18.36  = { by axiom 5 (cn_1) R->L }
% 124.73/18.36    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 124.73/18.37  = { by axiom 4 (condensed_detachment) }
% 124.73/18.37    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 124.73/18.38  = { by axiom 1 (ifeq_axiom) }
% 124.73/18.38    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 124.73/18.39  = { by axiom 1 (ifeq_axiom) R->L }
% 124.73/18.39    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 125.43/18.41  = { by axiom 4 (condensed_detachment) R->L }
% 125.43/18.42    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 125.43/18.44  = { by axiom 1 (ifeq_axiom) R->L }
% 125.43/18.44    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 125.43/18.46  = { by axiom 4 (condensed_detachment) R->L }
% 125.43/18.47    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 125.43/18.49  = { by axiom 1 (ifeq_axiom) R->L }
% 126.14/18.50    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true, ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 126.14/18.52  = { by axiom 5 (cn_1) R->L }
% 126.14/18.53    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true, ifeq(ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true, is_a_theorem(implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 126.14/18.55  = { by axiom 1 (ifeq_axiom) R->L }
% 126.14/18.56    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true, ifeq(ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true, ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 126.14/18.57  = { by axiom 2 (cn_3) R->L }
% 126.14/18.58    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true, ifeq(ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true, ifeq(is_a_theorem(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, is_a_theorem(implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 126.14/18.59  = { by axiom 4 (condensed_detachment) }
% 126.84/18.60    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true, ifeq(true, true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 126.84/18.62  = { by axiom 1 (ifeq_axiom) }
% 126.84/18.63    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 126.84/18.65  = { by axiom 1 (ifeq_axiom) R->L }
% 126.84/18.66    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 126.84/18.69  = { by axiom 4 (condensed_detachment) R->L }
% 127.55/18.70    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true, ifeq(is_a_theorem(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 127.55/18.75  = { by axiom 1 (ifeq_axiom) R->L }
% 127.55/18.76    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 127.55/18.78  = { by axiom 5 (cn_1) R->L }
% 127.55/18.80    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(not(not(implies(x, not(y))))))))), implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))))), true, is_a_theorem(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 128.25/18.81  = { by axiom 1 (ifeq_axiom) R->L }
% 128.25/18.82    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(not(not(implies(x, not(y))))))))), implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))))), true, ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 128.25/18.84  = { by axiom 2 (cn_3) R->L }
% 128.25/18.86    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(not(not(implies(x, not(y))))))))), implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))))), true, ifeq(is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 128.25/18.87  = { by axiom 4 (condensed_detachment) }
% 128.25/18.88    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 128.25/18.90  = { by axiom 1 (ifeq_axiom) }
% 128.96/18.90    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 128.96/18.92  = { by axiom 5 (cn_1) }
% 128.96/18.93    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 128.96/18.95  = { by axiom 1 (ifeq_axiom) }
% 128.96/18.96    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 128.96/18.97  = { by axiom 1 (ifeq_axiom) R->L }
% 128.96/18.97    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 128.96/18.98  = { by axiom 5 (cn_1) R->L }
% 128.96/19.00    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))))), true, ifeq(is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(not(implies(x, not(y))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 128.96/19.01  = { by axiom 4 (condensed_detachment) }
% 128.96/19.01    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 128.96/19.02  = { by axiom 1 (ifeq_axiom) }
% 128.96/19.03    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 129.88/19.03  = { by axiom 1 (ifeq_axiom) R->L }
% 129.88/19.04    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 129.88/19.04  = { by axiom 5 (cn_1) R->L }
% 129.88/19.05    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, ifeq(is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 129.88/19.06  = { by axiom 4 (condensed_detachment) }
% 129.88/19.06    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 129.88/19.07  = { by axiom 1 (ifeq_axiom) }
% 129.88/19.08    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 129.88/19.08  = { by axiom 1 (ifeq_axiom) R->L }
% 129.88/19.09    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 129.88/19.10  = { by axiom 4 (condensed_detachment) R->L }
% 129.88/19.11    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y))))))), implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, ifeq(is_a_theorem(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 129.88/19.12  = { by axiom 5 (cn_1) }
% 129.88/19.12    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 130.59/19.13  = { by axiom 1 (ifeq_axiom) }
% 130.59/19.14    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 130.59/19.15  = { by axiom 1 (ifeq_axiom) R->L }
% 130.59/19.16    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 130.59/19.17  = { by axiom 4 (condensed_detachment) R->L }
% 130.59/19.18    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(not(not(implies(x, not(y)))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y))))))))), true, ifeq(is_a_theorem(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(not(not(implies(x, not(y)))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))), true), true), true, is_a_theorem(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 130.59/19.19  = { by axiom 3 (cn_2) }
% 130.59/19.19    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(not(not(implies(x, not(y)))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y))))))))), true, ifeq(true, true, is_a_theorem(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(not(not(implies(x, not(y)))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))), true), true), true, is_a_theorem(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 131.07/19.20  = { by axiom 1 (ifeq_axiom) }
% 131.07/19.21    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(not(not(implies(x, not(y)))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(not(not(implies(x, not(y)))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))), true), true, is_a_theorem(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 131.07/19.22  = { by axiom 5 (cn_1) }
% 131.07/19.23    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(not(not(implies(x, not(y)))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))), true), true, is_a_theorem(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 131.07/19.25  = { by axiom 1 (ifeq_axiom) }
% 131.07/19.25    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(not(not(implies(x, not(y)))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 131.07/19.27  = { by axiom 1 (ifeq_axiom) R->L }
% 131.07/19.28    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(not(not(implies(x, not(y)))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 131.07/19.29  = { by axiom 4 (condensed_detachment) R->L }
% 131.78/19.30    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(not(not(implies(x, not(y))))))), implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(not(not(implies(x, not(y)))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))))), true, ifeq(is_a_theorem(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(not(not(implies(x, not(y)))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y))))))))), true), true), true, ifeq(is_a_theorem(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(not(not(implies(x, not(y)))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 131.78/19.31  = { by axiom 2 (cn_3) }
% 131.78/19.32    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(not(not(implies(x, not(y))))))), implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(not(not(implies(x, not(y)))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))))), true, ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(not(not(implies(x, not(y)))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y))))))))), true), true), true, ifeq(is_a_theorem(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(not(not(implies(x, not(y)))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 131.78/19.34  = { by axiom 1 (ifeq_axiom) }
% 131.78/19.35    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(not(not(implies(x, not(y))))))), implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(not(not(implies(x, not(y)))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(not(not(implies(x, not(y)))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(not(not(implies(x, not(y)))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 131.78/19.36  = { by axiom 5 (cn_1) }
% 131.78/19.37    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(not(not(implies(x, not(y)))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(not(not(implies(x, not(y)))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 131.78/19.37  = { by axiom 1 (ifeq_axiom) }
% 131.78/19.38    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(not(not(implies(x, not(y)))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y))))))))), true, ifeq(is_a_theorem(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(not(not(implies(x, not(y)))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 131.78/19.39  = { by axiom 4 (condensed_detachment) }
% 131.78/19.40    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 132.49/19.41  = { by axiom 1 (ifeq_axiom) }
% 132.49/19.42    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 132.49/19.43  = { by axiom 1 (ifeq_axiom) R->L }
% 132.49/19.43    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 132.49/19.44  = { by axiom 4 (condensed_detachment) R->L }
% 132.49/19.46    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 132.49/19.47  = { by axiom 5 (cn_1) }
% 132.49/19.47    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 132.49/19.48  = { by axiom 1 (ifeq_axiom) }
% 132.49/19.49    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 132.49/19.49  = { by axiom 5 (cn_1) }
% 133.19/19.50    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 133.19/19.51  = { by axiom 1 (ifeq_axiom) }
% 133.19/19.51    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(not(implies(x, not(y)))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), implies(not(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 133.19/19.52  = { by axiom 4 (condensed_detachment) }
% 133.19/19.52    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 133.19/19.53  = { by axiom 1 (ifeq_axiom) }
% 133.19/19.53    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 133.19/19.53  = { by axiom 1 (ifeq_axiom) R->L }
% 133.19/19.54    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 133.19/19.54  = { by axiom 5 (cn_1) R->L }
% 133.19/19.54    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, ifeq(is_a_theorem(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 133.19/19.55  = { by axiom 4 (condensed_detachment) }
% 133.19/19.55    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 133.19/19.56  = { by axiom 1 (ifeq_axiom) }
% 133.19/19.57    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 133.19/19.58  = { by axiom 1 (ifeq_axiom) R->L }
% 133.19/19.58    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 133.19/19.60  = { by axiom 4 (condensed_detachment) R->L }
% 133.90/19.60    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 133.90/19.62  = { by axiom 1 (ifeq_axiom) R->L }
% 133.90/19.63    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 133.90/19.65  = { by axiom 5 (cn_1) R->L }
% 133.90/19.66    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, is_a_theorem(implies(implies(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 133.90/19.66  = { by axiom 1 (ifeq_axiom) R->L }
% 133.90/19.67    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, is_a_theorem(implies(implies(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 133.90/19.68  = { by axiom 5 (cn_1) R->L }
% 134.61/19.70    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(implies(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))))), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, is_a_theorem(implies(implies(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 134.61/19.71  = { by axiom 4 (condensed_detachment) }
% 134.61/19.71    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 134.61/19.73  = { by axiom 1 (ifeq_axiom) }
% 134.61/19.73    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 134.61/19.74  = { by axiom 1 (ifeq_axiom) R->L }
% 134.61/19.75    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 134.61/19.76  = { by axiom 4 (condensed_detachment) R->L }
% 134.61/19.77    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, ifeq(is_a_theorem(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 134.61/19.77  = { by axiom 3 (cn_2) }
% 134.61/19.78    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, ifeq(true, true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 134.61/19.79  = { by axiom 1 (ifeq_axiom) }
% 134.61/19.80    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 135.31/19.81  = { by axiom 5 (cn_1) }
% 135.31/19.81    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 135.31/19.82  = { by axiom 1 (ifeq_axiom) }
% 135.31/19.83    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 135.31/19.83  = { by axiom 1 (ifeq_axiom) R->L }
% 135.31/19.84    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 135.31/19.84  = { by axiom 5 (cn_1) R->L }
% 135.31/19.85    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true, ifeq(is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 135.31/19.85  = { by axiom 4 (condensed_detachment) }
% 135.31/19.86    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 135.31/19.86  = { by axiom 1 (ifeq_axiom) }
% 135.31/19.86    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 135.31/19.86  = { by axiom 4 (condensed_detachment) }
% 135.31/19.86    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 135.31/19.87  = { by axiom 1 (ifeq_axiom) }
% 135.31/19.87    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 135.31/19.87  = { by axiom 1 (ifeq_axiom) R->L }
% 135.31/19.87    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 135.31/19.88  = { by axiom 4 (condensed_detachment) R->L }
% 135.31/19.88    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, ifeq(is_a_theorem(implies(not(not(implies(x, not(y)))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 135.31/19.88  = { by axiom 5 (cn_1) }
% 135.31/19.89    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(not(not(implies(x, not(y)))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 135.31/19.89  = { by axiom 1 (ifeq_axiom) }
% 135.31/19.89    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(not(not(implies(x, not(y)))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.01/19.91  = { by axiom 1 (ifeq_axiom) R->L }
% 136.01/19.91    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(not(not(implies(x, not(y)))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.01/19.91  = { by axiom 4 (condensed_detachment) R->L }
% 136.01/19.92    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(implies(not(not(not(implies(x, not(y))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.01/19.92  = { by axiom 3 (cn_2) }
% 136.01/19.92    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(implies(not(not(not(implies(x, not(y))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, ifeq(true, true, is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.01/19.93  = { by axiom 1 (ifeq_axiom) }
% 136.01/19.93    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(implies(not(not(not(implies(x, not(y))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.01/19.93  = { by axiom 5 (cn_1) }
% 136.01/19.94    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.01/19.94  = { by axiom 1 (ifeq_axiom) }
% 136.01/19.94    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.01/19.95  = { by axiom 1 (ifeq_axiom) R->L }
% 136.01/19.96    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.01/19.96  = { by axiom 4 (condensed_detachment) R->L }
% 136.01/19.97    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(not(not(implies(x, not(y))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(implies(not(not(not(implies(x, not(y))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(implies(x, not(y)))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true, ifeq(is_a_theorem(implies(not(not(implies(x, not(y)))), implies(not(not(not(implies(x, not(y))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(implies(implies(not(not(not(implies(x, not(y))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(implies(x, not(y)))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.01/19.97  = { by axiom 2 (cn_3) }
% 136.01/19.97    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(not(not(implies(x, not(y))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(implies(not(not(not(implies(x, not(y))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(implies(x, not(y)))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true, ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(not(implies(x, not(y))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(implies(x, not(y)))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.01/19.98  = { by axiom 1 (ifeq_axiom) }
% 136.01/19.98    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(not(not(implies(x, not(y))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(implies(implies(not(not(not(implies(x, not(y))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(implies(x, not(y)))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))))), true, is_a_theorem(implies(implies(implies(not(not(not(implies(x, not(y))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(implies(x, not(y)))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.01/19.99  = { by axiom 5 (cn_1) }
% 136.01/19.99    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(not(implies(x, not(y))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(implies(x, not(y)))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.01/19.99  = { by axiom 1 (ifeq_axiom) }
% 136.01/19.99    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(not(implies(x, not(y))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), implies(not(not(implies(x, not(y)))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))))), true, ifeq(is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.01/19.99  = { by axiom 4 (condensed_detachment) }
% 136.01/20.00    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.01/20.00  = { by axiom 1 (ifeq_axiom) }
% 136.01/20.00    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))))), true, ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))))), true), true), true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.01/20.00  = { by axiom 4 (condensed_detachment) }
% 136.01/20.01    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.01/20.01  = { by axiom 1 (ifeq_axiom) }
% 136.01/20.01    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.01/20.01  = { by axiom 1 (ifeq_axiom) R->L }
% 136.01/20.01    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.01/20.01  = { by axiom 4 (condensed_detachment) R->L }
% 136.01/20.01    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))))), true, ifeq(is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))))), true), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.01/20.01  = { by axiom 2 (cn_3) }
% 136.01/20.02    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))))), true, ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))))), true), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.01/20.02  = { by axiom 1 (ifeq_axiom) }
% 136.01/20.02    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y))))))), implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.01/20.02  = { by axiom 5 (cn_1) }
% 136.01/20.02    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.01/20.02  = { by axiom 1 (ifeq_axiom) }
% 136.01/20.02    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y))))))), true, ifeq(is_a_theorem(implies(implies(not(not(not(not(implies(x, not(y)))))), not(not(not(implies(x, not(y)))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true, is_a_theorem(implies(not(not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.01/20.02  = { by axiom 4 (condensed_detachment) }
% 136.01/20.02    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.01/20.03  = { by axiom 1 (ifeq_axiom) }
% 136.01/20.03    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.01/20.03  = { by axiom 1 (ifeq_axiom) R->L }
% 136.01/20.03    ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.01/20.03  = { by axiom 4 (condensed_detachment) R->L }
% 136.94/20.03    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(x, not(y)), implies(not(implies(x, not(y))), not(not(implies(x, not(y)))))), implies(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))))), true, ifeq(is_a_theorem(implies(implies(x, not(y)), implies(not(implies(x, not(y))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true), true, ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.94/20.03  = { by axiom 2 (cn_3) }
% 136.94/20.03    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(x, not(y)), implies(not(implies(x, not(y))), not(not(implies(x, not(y)))))), implies(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))))), true, ifeq(true, true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true), true, ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.94/20.03  = { by axiom 1 (ifeq_axiom) }
% 136.94/20.04    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(x, not(y)), implies(not(implies(x, not(y))), not(not(implies(x, not(y)))))), implies(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))))), true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.94/20.04  = { by axiom 5 (cn_1) }
% 136.94/20.04    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true), true, ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.94/20.04  = { by axiom 1 (ifeq_axiom) }
% 136.94/20.04    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))))), true, ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), not(not(implies(x, not(y))))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(x, not(y)), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.94/20.04  = { by axiom 4 (condensed_detachment) }
% 136.94/20.04    ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.94/20.04  = { by axiom 1 (ifeq_axiom) }
% 136.94/20.04    ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.94/20.04  = { by axiom 1 (ifeq_axiom) R->L }
% 136.94/20.04    ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true, ifeq(true, true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.94/20.04  = { by axiom 4 (condensed_detachment) R->L }
% 136.94/20.04    ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true, ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))))), true, ifeq(is_a_theorem(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.94/20.04  = { by axiom 3 (cn_2) }
% 136.94/20.04    ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true, ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))))), true, ifeq(true, true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.94/20.04  = { by axiom 1 (ifeq_axiom) }
% 136.94/20.05    ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true, ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.94/20.05  = { by axiom 1 (ifeq_axiom) R->L }
% 136.94/20.05    ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true, ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.94/20.05  = { by axiom 5 (cn_1) R->L }
% 136.94/20.05    ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true, ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y)))))))), true, is_a_theorem(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))))), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.94/20.05  = { by axiom 1 (ifeq_axiom) R->L }
% 136.94/20.05    ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true, ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y)))))))), true, ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.94/20.05  = { by axiom 2 (cn_3) R->L }
% 136.94/20.05    ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true, ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y)))))), implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y)))))))), true, ifeq(is_a_theorem(implies(not(not(implies(x, not(y)))), implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))))), true, is_a_theorem(implies(implies(implies(not(not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), not(not(implies(x, not(y))))), implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))))), true), true), true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.94/20.05  = { by axiom 4 (condensed_detachment) }
% 136.94/20.05    ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true, ifeq(ifeq(true, true, is_a_theorem(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.94/20.05  = { by axiom 1 (ifeq_axiom) }
% 136.94/20.05    ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y))))), implies(implies(x, not(y)), not(not(implies(x, not(y))))))), true, ifeq(is_a_theorem(implies(not(not(implies(x, not(y)))), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(implies(x, not(y)), not(not(implies(x, not(y)))))), true), true), true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.94/20.05  = { by axiom 4 (condensed_detachment) }
% 136.94/20.05    ifeq(ifeq(true, true, is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.94/20.05  = { by axiom 1 (ifeq_axiom) }
% 136.94/20.06    ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true)
% 136.94/20.06  = { by axiom 1 (ifeq_axiom) R->L }
% 136.94/20.06    ifeq(true, true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 136.94/20.06  = { by axiom 4 (condensed_detachment) R->L }
% 136.94/20.06    ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)), implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y)))), true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 136.94/20.06  = { by axiom 1 (ifeq_axiom) R->L }
% 136.94/20.06    ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)), implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y)))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 136.94/20.06  = { by axiom 5 (cn_1) R->L }
% 136.94/20.06    ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)), implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y)))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 136.94/20.06  = { by axiom 1 (ifeq_axiom) R->L }
% 136.94/20.06    ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)), implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y)))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 136.94/20.06  = { by axiom 5 (cn_1) R->L }
% 136.94/20.06    ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(y), not(not(implies(x, not(y))))), implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)), implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))))), true, ifeq(is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)), implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y)))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 136.94/20.06  = { by axiom 4 (condensed_detachment) }
% 136.94/20.06    ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 136.94/20.06  = { by axiom 1 (ifeq_axiom) }
% 136.94/20.06    ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 136.94/20.06  = { by axiom 1 (ifeq_axiom) R->L }
% 136.94/20.06    ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 136.94/20.07  = { by axiom 4 (condensed_detachment) R->L }
% 136.94/20.07    ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 136.94/20.07  = { by axiom 1 (ifeq_axiom) R->L }
% 136.94/20.07    ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 136.94/20.07  = { by axiom 4 (condensed_detachment) R->L }
% 136.94/20.07    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y))), implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))))), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)))), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 136.94/20.08  = { by axiom 5 (cn_1) }
% 136.94/20.08    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)))), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 136.94/20.08  = { by axiom 1 (ifeq_axiom) }
% 136.94/20.08    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)))), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 136.94/20.09  = { by axiom 1 (ifeq_axiom) R->L }
% 136.94/20.09    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 136.94/20.09  = { by axiom 5 (cn_1) R->L }
% 136.94/20.09    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y))))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 136.94/20.10  = { by axiom 1 (ifeq_axiom) R->L }
% 136.94/20.10    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y))))), true, ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 136.94/20.10  = { by axiom 3 (cn_2) R->L }
% 136.94/20.10    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y))))), true, ifeq(is_a_theorem(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 136.94/20.10  = { by axiom 4 (condensed_detachment) }
% 136.94/20.11    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 136.94/20.11  = { by axiom 1 (ifeq_axiom) }
% 136.94/20.11    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 136.94/20.12  = { by axiom 1 (ifeq_axiom) R->L }
% 136.94/20.12    ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 136.94/20.12  = { by axiom 4 (condensed_detachment) R->L }
% 136.94/20.13    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), implies(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))))), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true, is_a_theorem(implies(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 136.94/20.13  = { by axiom 5 (cn_1) }
% 137.65/20.13    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true, is_a_theorem(implies(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 137.65/20.13  = { by axiom 1 (ifeq_axiom) }
% 137.65/20.14    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true, is_a_theorem(implies(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))))), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 137.65/20.14  = { by axiom 5 (cn_1) }
% 137.65/20.14    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))))), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 137.65/20.14  = { by axiom 1 (ifeq_axiom) }
% 137.65/20.14    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))))), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 137.65/20.14  = { by axiom 4 (condensed_detachment) }
% 137.65/20.15    ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 137.65/20.15  = { by axiom 1 (ifeq_axiom) }
% 137.65/20.15    ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 137.65/20.16  = { by axiom 1 (ifeq_axiom) R->L }
% 137.65/20.16    ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 137.65/20.16  = { by axiom 4 (condensed_detachment) R->L }
% 137.65/20.17    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 137.65/20.17  = { by axiom 1 (ifeq_axiom) R->L }
% 137.65/20.17    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 137.65/20.17  = { by axiom 4 (condensed_detachment) R->L }
% 137.65/20.18    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true, ifeq(is_a_theorem(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(y), y), y))), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 137.65/20.18  = { by axiom 3 (cn_2) }
% 137.65/20.18    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true, ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 137.65/20.18  = { by axiom 1 (ifeq_axiom) }
% 137.65/20.19    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 137.65/20.19  = { by axiom 5 (cn_1) }
% 137.65/20.19    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 137.65/20.19  = { by axiom 1 (ifeq_axiom) }
% 137.65/20.19    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 137.65/20.20  = { by axiom 1 (ifeq_axiom) R->L }
% 138.15/20.20    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 138.15/20.20  = { by axiom 5 (cn_1) R->L }
% 138.15/20.20    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 138.15/20.21  = { by axiom 4 (condensed_detachment) }
% 138.15/20.21    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 138.15/20.21  = { by axiom 1 (ifeq_axiom) }
% 138.15/20.21    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 138.15/20.22  = { by axiom 1 (ifeq_axiom) R->L }
% 138.15/20.22    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 138.15/20.23  = { by axiom 4 (condensed_detachment) R->L }
% 138.15/20.23    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 138.15/20.23  = { by axiom 1 (ifeq_axiom) R->L }
% 138.15/20.24    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 138.15/20.24  = { by axiom 4 (condensed_detachment) R->L }
% 138.15/20.25    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))))), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 138.15/20.26  = { by axiom 5 (cn_1) }
% 138.15/20.26    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 138.15/20.27  = { by axiom 1 (ifeq_axiom) }
% 138.15/20.27    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 138.15/20.28  = { by axiom 1 (ifeq_axiom) R->L }
% 138.15/20.29    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 138.15/20.29  = { by axiom 5 (cn_1) R->L }
% 138.84/20.30    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 138.84/20.31  = { by axiom 1 (ifeq_axiom) R->L }
% 138.84/20.31    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true, ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 138.84/20.32  = { by axiom 3 (cn_2) R->L }
% 138.84/20.33    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true, ifeq(is_a_theorem(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 138.84/20.33  = { by axiom 4 (condensed_detachment) }
% 138.84/20.34    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 138.84/20.35  = { by axiom 1 (ifeq_axiom) }
% 138.84/20.36    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 138.84/20.37  = { by axiom 1 (ifeq_axiom) R->L }
% 138.84/20.37    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 138.84/20.38  = { by axiom 4 (condensed_detachment) R->L }
% 138.84/20.39    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), implies(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))))), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true, is_a_theorem(implies(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 139.54/20.40  = { by axiom 5 (cn_1) }
% 139.54/20.41    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true, is_a_theorem(implies(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 139.54/20.42  = { by axiom 1 (ifeq_axiom) }
% 139.54/20.45    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true, is_a_theorem(implies(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 139.54/20.45  = { by axiom 5 (cn_1) }
% 139.54/20.45    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))))), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 139.54/20.46  = { by axiom 1 (ifeq_axiom) }
% 139.54/20.46    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))))), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true, is_a_theorem(implies(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 139.54/20.47  = { by axiom 4 (condensed_detachment) }
% 139.54/20.47    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 139.54/20.47  = { by axiom 1 (ifeq_axiom) }
% 139.54/20.47    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 139.54/20.48  = { by axiom 1 (ifeq_axiom) R->L }
% 139.54/20.48    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 139.54/20.48  = { by axiom 4 (condensed_detachment) R->L }
% 139.54/20.49    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y))), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y))))), true, ifeq(is_a_theorem(implies(implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true, is_a_theorem(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 139.54/20.49  = { by axiom 1 (ifeq_axiom) R->L }
% 139.54/20.50    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y))), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true, is_a_theorem(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.24/20.50  = { by axiom 5 (cn_1) R->L }
% 140.24/20.50    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y))), implies(implies(implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y))), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))))), true, is_a_theorem(implies(implies(implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y))), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y))))), true), true, ifeq(is_a_theorem(implies(implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true, is_a_theorem(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.24/20.51  = { by axiom 1 (ifeq_axiom) R->L }
% 140.24/20.51    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y))), implies(implies(implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y))), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))))), true, ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y))), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y))))), true), true), true, ifeq(is_a_theorem(implies(implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true, is_a_theorem(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.24/20.51  = { by axiom 2 (cn_3) R->L }
% 140.24/20.52    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y))), implies(implies(implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y))), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))))), true, ifeq(is_a_theorem(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y)))), true, is_a_theorem(implies(implies(implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y))), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y))))), true), true), true, ifeq(is_a_theorem(implies(implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true, is_a_theorem(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.24/20.52  = { by axiom 4 (condensed_detachment) }
% 140.24/20.52    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true, is_a_theorem(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.24/20.53  = { by axiom 1 (ifeq_axiom) }
% 140.24/20.53    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true, is_a_theorem(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.24/20.53  = { by axiom 1 (ifeq_axiom) R->L }
% 140.24/20.53    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true), true, is_a_theorem(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.24/20.54  = { by axiom 4 (condensed_detachment) R->L }
% 140.24/20.54    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(y), y), y), implies(not(implies(implies(not(y), y), y)), not(not(implies(implies(not(not(implies(x, not(y)))), y), y)))))), true, ifeq(is_a_theorem(implies(implies(not(y), y), y)), true, is_a_theorem(implies(not(implies(implies(not(y), y), y)), not(not(implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true), true, is_a_theorem(implies(implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true), true, is_a_theorem(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.24/20.54  = { by axiom 2 (cn_3) }
% 140.24/20.55    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(not(y), y), y)), true, is_a_theorem(implies(not(implies(implies(not(y), y), y)), not(not(implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true), true, is_a_theorem(implies(implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true), true, is_a_theorem(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.24/20.55  = { by axiom 1 (ifeq_axiom) }
% 140.24/20.55    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(y), y), y)), true, is_a_theorem(implies(not(implies(implies(not(y), y), y)), not(not(implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, is_a_theorem(implies(implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true), true, is_a_theorem(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.24/20.56  = { by axiom 3 (cn_2) }
% 140.24/20.56    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(not(implies(implies(not(y), y), y)), not(not(implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, is_a_theorem(implies(implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true), true, is_a_theorem(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.24/20.56  = { by axiom 1 (ifeq_axiom) }
% 140.24/20.56    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(not(implies(implies(not(y), y), y)), not(not(implies(implies(not(not(implies(x, not(y)))), y), y))))), true, is_a_theorem(implies(implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true), true, is_a_theorem(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.24/20.57  = { by axiom 1 (ifeq_axiom) R->L }
% 140.24/20.57    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(not(implies(implies(not(y), y), y)), not(not(implies(implies(not(not(implies(x, not(y)))), y), y))))), true, is_a_theorem(implies(implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true), true), true, is_a_theorem(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.24/20.57  = { by axiom 5 (cn_1) R->L }
% 140.24/20.57    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(implies(not(y), y), y)), not(not(implies(implies(not(not(implies(x, not(y)))), y), y)))), implies(implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y))))), true, ifeq(is_a_theorem(implies(not(implies(implies(not(y), y), y)), not(not(implies(implies(not(not(implies(x, not(y)))), y), y))))), true, is_a_theorem(implies(implies(not(not(implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(not(y), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true), true), true, is_a_theorem(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.24/20.58  = { by axiom 4 (condensed_detachment) }
% 140.24/20.58    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.24/20.58  = { by axiom 1 (ifeq_axiom) }
% 140.24/20.58    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.24/20.59  = { by axiom 1 (ifeq_axiom) R->L }
% 140.24/20.59    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.24/20.59  = { by axiom 5 (cn_1) R->L }
% 140.24/20.59    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true, ifeq(is_a_theorem(implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)))), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.95/20.60  = { by axiom 4 (condensed_detachment) }
% 140.95/20.60    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.95/20.60  = { by axiom 1 (ifeq_axiom) }
% 140.95/20.60    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.95/20.60  = { by axiom 1 (ifeq_axiom) R->L }
% 140.95/20.61    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true, ifeq(true, true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.95/20.61  = { by axiom 2 (cn_3) R->L }
% 140.95/20.61    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(not(implies(implies(not(y), y), y)), implies(implies(not(y), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.95/20.61  = { by axiom 4 (condensed_detachment) }
% 140.95/20.61    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.95/20.61  = { by axiom 1 (ifeq_axiom) }
% 140.95/20.61    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.95/20.62  = { by axiom 1 (ifeq_axiom) R->L }
% 140.95/20.62    ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.95/20.62  = { by axiom 4 (condensed_detachment) R->L }
% 140.95/20.62    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))))), true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.95/20.62  = { by axiom 5 (cn_1) }
% 140.95/20.62    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.95/20.62  = { by axiom 1 (ifeq_axiom) }
% 140.95/20.63    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.95/20.63  = { by axiom 5 (cn_1) }
% 140.95/20.63    ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.95/20.63  = { by axiom 1 (ifeq_axiom) }
% 140.95/20.63    ifeq(ifeq(ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y))))), true, ifeq(is_a_theorem(implies(implies(implies(implies(not(y), y), y), implies(implies(not(not(implies(x, not(y)))), y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(implies(not(not(implies(x, not(y)))), y), y)), implies(implies(not(not(implies(x, not(y)))), y), y)))), true), true), true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.95/20.63  = { by axiom 4 (condensed_detachment) }
% 140.95/20.63    ifeq(ifeq(ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.95/20.63  = { by axiom 1 (ifeq_axiom) }
% 140.95/20.63    ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.95/20.63  = { by axiom 1 (ifeq_axiom) R->L }
% 140.95/20.63    ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true, ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.95/20.63  = { by axiom 4 (condensed_detachment) R->L }
% 140.95/20.64    ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true, ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(not(implies(x, not(y)))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)))), true, ifeq(is_a_theorem(implies(not(implies(x, not(y))), implies(not(not(implies(x, not(y)))), y))), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.95/20.64  = { by axiom 2 (cn_3) }
% 140.95/20.64    ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true, ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(not(implies(x, not(y)))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)))), true, ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y))), true), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.95/20.64  = { by axiom 1 (ifeq_axiom) }
% 140.95/20.64    ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true, ifeq(ifeq(is_a_theorem(implies(implies(not(implies(x, not(y))), implies(not(not(implies(x, not(y)))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)))), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.95/20.64  = { by axiom 5 (cn_1) }
% 140.95/20.64    ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true, ifeq(ifeq(true, true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y))), true), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.95/20.64  = { by axiom 1 (ifeq_axiom) }
% 140.95/20.64    ifeq(ifeq(ifeq(is_a_theorem(implies(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y)), implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y)))), true, ifeq(is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), y), implies(not(implies(x, not(y))), y))), true, is_a_theorem(implies(implies(implies(not(not(implies(x, not(y)))), y), implies(not(y), y)), implies(not(implies(x, not(y))), y))), true), true), true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.95/20.64  = { by axiom 4 (condensed_detachment) }
% 140.95/20.64    ifeq(ifeq(true, true, is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.95/20.64  = { by axiom 1 (ifeq_axiom) }
% 140.95/20.64    ifeq(is_a_theorem(implies(implies(not(y), not(not(implies(x, not(y))))), implies(not(implies(x, not(y))), y))), true, ifeq(is_a_theorem(implies(not(y), not(not(implies(x, not(y)))))), true, is_a_theorem(implies(not(implies(x, not(y))), y)), true), true)
% 140.95/20.64  = { by axiom 4 (condensed_detachment) }
% 140.95/20.64    true
% 140.95/20.64  % SZS output end Proof
% 140.95/20.64  
% 140.95/20.64  RESULT: Unsatisfiable (the axioms are contradictory).
%------------------------------------------------------------------------------