%------------------------------------------------------------------------------
% File : Twee---2.7
% Problem : LCL180-3 : TPTP v9.3.1. Released v2.3.0.
% Transfm : none
% Format : tptp:raw
% Command : run_twee /export/starexec/sandbox2/benchmark/theBenchmark.p
% Computer : n018.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 11:49:14 AM UTC 2026
% Result : Unsatisfiable 33.16s 4.64s
% Output : Proof 33.99s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : LCL180-3 : TPTP v9.3.1. Released v2.3.0.
% 0.00/0.05 % Command : run_twee /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.10/0.36 % Computer : n018.cluster.edu
% 0.10/0.36 % Model : x86_64 x86_64
% 0.10/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.36 % Memory : 8046.5625MB
% 0.10/0.36 % OS : Linux 6.8.0-71-generic
% 0.10/0.36 % CPULimit : 300
% 0.10/0.37 % WCLimit : 300
% 0.10/0.37 % DateTime : Sun Sep 27 15:27:24 UTC 2026
% 0.10/0.37 % CPUTime :
% 0.10/0.37 Running run_twee /export/starexec/sandbox2/benchmark/theBenchmark.p
% 33.16/4.64 Command-line arguments: --lhs-weight 1 --flip-ordering --normalise-queue-percent 10 --cp-renormalise-threshold 10 --complete-subsets --ground-joining-incomplete-limit 15 --flatten-every 2
% 33.16/4.64
% 33.16/4.64 % SZS status Unsatisfiable
% 33.16/4.64
% 33.99/4.72 % SZS output start Proof
% 33.99/4.73 Axiom 1 (implies_definition): implies(X, Y) = or(not(X), Y).
% 33.99/4.73 Axiom 2 (ifeq_axiom): ifeq(X, X, Y, Z) = Y.
% 33.99/4.73 Axiom 3 (axiom_1_3): axiom(implies(X, or(Y, X))) = true.
% 33.99/4.73 Axiom 4 (axiom_1_2): axiom(implies(or(X, X), X)) = true.
% 33.99/4.73 Axiom 5 (rule_1): ifeq(axiom(X), true, theorem(X), true) = true.
% 33.99/4.73 Axiom 6 (axiom_1_4): axiom(implies(or(X, Y), or(Y, X))) = true.
% 33.99/4.73 Axiom 7 (axiom_1_6): axiom(implies(implies(X, Y), implies(or(Z, X), or(Z, Y)))) = true.
% 33.99/4.73 Axiom 8 (axiom_1_5): axiom(implies(or(X, or(Y, Z)), or(Y, or(X, Z)))) = true.
% 33.99/4.73 Axiom 9 (rule_2): ifeq(theorem(implies(X, Y)), true, ifeq(theorem(X), true, theorem(Y), true), true) = true.
% 33.99/4.73
% 33.99/4.73 Goal 1 (prove_this): theorem(implies(not(not(p)), p)) = true.
% 33.99/4.73 Proof:
% 33.99/4.73 theorem(implies(not(not(p)), p))
% 33.99/4.73 = { by axiom 2 (ifeq_axiom) R->L }
% 33.99/4.73 ifeq(true, true, theorem(implies(not(not(p)), p)), true)
% 33.99/4.73 = { by axiom 9 (rule_2) R->L }
% 33.99/4.73 ifeq(ifeq(theorem(implies(implies(p, or(not(not(not(p))), p)), or(or(not(not(not(p))), p), not(p)))), true, ifeq(theorem(implies(p, or(not(not(not(p))), p))), true, theorem(or(or(not(not(not(p))), p), not(p))), true), true), true, theorem(implies(not(not(p)), p)), true)
% 33.99/4.73 = { by axiom 2 (ifeq_axiom) R->L }
% 33.99/4.73 ifeq(ifeq(theorem(implies(implies(p, or(not(not(not(p))), p)), or(or(not(not(not(p))), p), not(p)))), true, ifeq(ifeq(true, true, theorem(implies(p, or(not(not(not(p))), p))), true), true, theorem(or(or(not(not(not(p))), p), not(p))), true), true), true, theorem(implies(not(not(p)), p)), true)
% 33.99/4.73 = { by axiom 3 (axiom_1_3) R->L }
% 33.99/4.73 ifeq(ifeq(theorem(implies(implies(p, or(not(not(not(p))), p)), or(or(not(not(not(p))), p), not(p)))), true, ifeq(ifeq(axiom(implies(p, or(not(not(not(p))), p))), true, theorem(implies(p, or(not(not(not(p))), p))), true), true, theorem(or(or(not(not(not(p))), p), not(p))), true), true), true, theorem(implies(not(not(p)), p)), true)
% 33.99/4.73 = { by axiom 5 (rule_1) }
% 33.99/4.73 ifeq(ifeq(theorem(implies(implies(p, or(not(not(not(p))), p)), or(or(not(not(not(p))), p), not(p)))), true, ifeq(true, true, theorem(or(or(not(not(not(p))), p), not(p))), true), true), true, theorem(implies(not(not(p)), p)), true)
% 33.99/4.73 = { by axiom 2 (ifeq_axiom) }
% 33.99/4.73 ifeq(ifeq(theorem(implies(implies(p, or(not(not(not(p))), p)), or(or(not(not(not(p))), p), not(p)))), true, theorem(or(or(not(not(not(p))), p), not(p))), true), true, theorem(implies(not(not(p)), p)), true)
% 33.99/4.73 = { by axiom 1 (implies_definition) }
% 33.99/4.73 ifeq(ifeq(theorem(implies(or(not(p), or(not(not(not(p))), p)), or(or(not(not(not(p))), p), not(p)))), true, theorem(or(or(not(not(not(p))), p), not(p))), true), true, theorem(implies(not(not(p)), p)), true)
% 33.99/4.73 = { by axiom 2 (ifeq_axiom) R->L }
% 33.99/4.73 ifeq(ifeq(ifeq(true, true, theorem(implies(or(not(p), or(not(not(not(p))), p)), or(or(not(not(not(p))), p), not(p)))), true), true, theorem(or(or(not(not(not(p))), p), not(p))), true), true, theorem(implies(not(not(p)), p)), true)
% 33.99/4.73 = { by axiom 6 (axiom_1_4) R->L }
% 33.99/4.73 ifeq(ifeq(ifeq(axiom(implies(or(not(p), or(not(not(not(p))), p)), or(or(not(not(not(p))), p), not(p)))), true, theorem(implies(or(not(p), or(not(not(not(p))), p)), or(or(not(not(not(p))), p), not(p)))), true), true, theorem(or(or(not(not(not(p))), p), not(p))), true), true, theorem(implies(not(not(p)), p)), true)
% 33.99/4.73 = { by axiom 5 (rule_1) }
% 33.99/4.73 ifeq(ifeq(true, true, theorem(or(or(not(not(not(p))), p), not(p))), true), true, theorem(implies(not(not(p)), p)), true)
% 33.99/4.74 = { by axiom 2 (ifeq_axiom) }
% 33.99/4.74 ifeq(theorem(or(or(not(not(not(p))), p), not(p))), true, theorem(implies(not(not(p)), p)), true)
% 33.99/4.74 = { by axiom 1 (implies_definition) R->L }
% 33.99/4.74 ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true)
% 33.99/4.74 = { by axiom 2 (ifeq_axiom) R->L }
% 33.99/4.74 ifeq(true, true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.74 = { by axiom 9 (rule_2) R->L }
% 33.99/4.74 ifeq(ifeq(theorem(implies(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p))), implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p)))), true, ifeq(theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.74 = { by axiom 2 (ifeq_axiom) R->L }
% 33.99/4.74 ifeq(ifeq(ifeq(true, true, theorem(implies(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p))), implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p)))), true), true, ifeq(theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.74 = { by axiom 5 (rule_1) R->L }
% 33.99/4.74 ifeq(ifeq(ifeq(ifeq(axiom(implies(implies(or(implies(not(not(p)), p), implies(not(not(p)), p)), implies(not(not(p)), p)), implies(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p))), implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))))), true, theorem(implies(implies(or(implies(not(not(p)), p), implies(not(not(p)), p)), implies(not(not(p)), p)), implies(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p))), implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))))), true), true, theorem(implies(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p))), implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p)))), true), true, ifeq(theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.74 = { by axiom 1 (implies_definition) }
% 33.99/4.74 ifeq(ifeq(ifeq(ifeq(axiom(implies(implies(or(implies(not(not(p)), p), implies(not(not(p)), p)), implies(not(not(p)), p)), implies(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p))), or(not(or(implies(not(not(p)), p), not(p))), implies(not(not(p)), p))))), true, theorem(implies(implies(or(implies(not(not(p)), p), implies(not(not(p)), p)), implies(not(not(p)), p)), implies(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p))), implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))))), true), true, theorem(implies(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p))), implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p)))), true), true, ifeq(theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.74 = { by axiom 1 (implies_definition) }
% 33.99/4.74 ifeq(ifeq(ifeq(ifeq(axiom(implies(implies(or(implies(not(not(p)), p), implies(not(not(p)), p)), implies(not(not(p)), p)), implies(or(not(or(implies(not(not(p)), p), not(p))), or(implies(not(not(p)), p), implies(not(not(p)), p))), or(not(or(implies(not(not(p)), p), not(p))), implies(not(not(p)), p))))), true, theorem(implies(implies(or(implies(not(not(p)), p), implies(not(not(p)), p)), implies(not(not(p)), p)), implies(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p))), implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))))), true), true, theorem(implies(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p))), implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p)))), true), true, ifeq(theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.74 = { by axiom 7 (axiom_1_6) }
% 33.99/4.74 ifeq(ifeq(ifeq(ifeq(true, true, theorem(implies(implies(or(implies(not(not(p)), p), implies(not(not(p)), p)), implies(not(not(p)), p)), implies(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p))), implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))))), true), true, theorem(implies(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p))), implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p)))), true), true, ifeq(theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.74 = { by axiom 2 (ifeq_axiom) }
% 33.99/4.74 ifeq(ifeq(ifeq(theorem(implies(implies(or(implies(not(not(p)), p), implies(not(not(p)), p)), implies(not(not(p)), p)), implies(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p))), implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))))), true, theorem(implies(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p))), implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p)))), true), true, ifeq(theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.74 = { by axiom 2 (ifeq_axiom) R->L }
% 33.99/4.75 ifeq(ifeq(ifeq(theorem(implies(implies(or(implies(not(not(p)), p), implies(not(not(p)), p)), implies(not(not(p)), p)), implies(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p))), implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))))), true, ifeq(true, true, theorem(implies(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p))), implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p)))), true), true), true, ifeq(theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.75 = { by axiom 5 (rule_1) R->L }
% 33.99/4.75 ifeq(ifeq(ifeq(theorem(implies(implies(or(implies(not(not(p)), p), implies(not(not(p)), p)), implies(not(not(p)), p)), implies(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p))), implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))))), true, ifeq(ifeq(axiom(implies(or(implies(not(not(p)), p), implies(not(not(p)), p)), implies(not(not(p)), p))), true, theorem(implies(or(implies(not(not(p)), p), implies(not(not(p)), p)), implies(not(not(p)), p))), true), true, theorem(implies(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p))), implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p)))), true), true), true, ifeq(theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.75 = { by axiom 4 (axiom_1_2) }
% 33.99/4.75 ifeq(ifeq(ifeq(theorem(implies(implies(or(implies(not(not(p)), p), implies(not(not(p)), p)), implies(not(not(p)), p)), implies(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p))), implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))))), true, ifeq(ifeq(true, true, theorem(implies(or(implies(not(not(p)), p), implies(not(not(p)), p)), implies(not(not(p)), p))), true), true, theorem(implies(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p))), implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p)))), true), true), true, ifeq(theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.75 = { by axiom 2 (ifeq_axiom) }
% 33.99/4.75 ifeq(ifeq(ifeq(theorem(implies(implies(or(implies(not(not(p)), p), implies(not(not(p)), p)), implies(not(not(p)), p)), implies(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p))), implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))))), true, ifeq(theorem(implies(or(implies(not(not(p)), p), implies(not(not(p)), p)), implies(not(not(p)), p))), true, theorem(implies(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p))), implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p)))), true), true), true, ifeq(theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.75 = { by axiom 9 (rule_2) }
% 33.99/4.75 ifeq(ifeq(true, true, ifeq(theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.75 = { by axiom 2 (ifeq_axiom) }
% 33.99/4.75 ifeq(ifeq(theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.75 = { by axiom 2 (ifeq_axiom) R->L }
% 33.99/4.75 ifeq(ifeq(ifeq(true, true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.75 = { by axiom 9 (rule_2) R->L }
% 33.99/4.75 ifeq(ifeq(ifeq(ifeq(theorem(implies(implies(not(not(p)), or(not(not(p)), p)), or(not(not(p)), implies(not(not(p)), p)))), true, ifeq(theorem(implies(not(not(p)), or(not(not(p)), p))), true, theorem(or(not(not(p)), implies(not(not(p)), p))), true), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.75 = { by axiom 2 (ifeq_axiom) R->L }
% 33.99/4.75 ifeq(ifeq(ifeq(ifeq(ifeq(true, true, theorem(implies(implies(not(not(p)), or(not(not(p)), p)), or(not(not(p)), implies(not(not(p)), p)))), true), true, ifeq(theorem(implies(not(not(p)), or(not(not(p)), p))), true, theorem(or(not(not(p)), implies(not(not(p)), p))), true), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.75 = { by axiom 8 (axiom_1_5) R->L }
% 33.99/4.75 ifeq(ifeq(ifeq(ifeq(ifeq(axiom(implies(or(not(not(not(p))), or(not(not(p)), p)), or(not(not(p)), or(not(not(not(p))), p)))), true, theorem(implies(implies(not(not(p)), or(not(not(p)), p)), or(not(not(p)), implies(not(not(p)), p)))), true), true, ifeq(theorem(implies(not(not(p)), or(not(not(p)), p))), true, theorem(or(not(not(p)), implies(not(not(p)), p))), true), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.75 = { by axiom 1 (implies_definition) R->L }
% 33.99/4.75 ifeq(ifeq(ifeq(ifeq(ifeq(axiom(implies(implies(not(not(p)), or(not(not(p)), p)), or(not(not(p)), or(not(not(not(p))), p)))), true, theorem(implies(implies(not(not(p)), or(not(not(p)), p)), or(not(not(p)), implies(not(not(p)), p)))), true), true, ifeq(theorem(implies(not(not(p)), or(not(not(p)), p))), true, theorem(or(not(not(p)), implies(not(not(p)), p))), true), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.75 = { by axiom 1 (implies_definition) R->L }
% 33.99/4.75 ifeq(ifeq(ifeq(ifeq(ifeq(axiom(implies(implies(not(not(p)), or(not(not(p)), p)), or(not(not(p)), implies(not(not(p)), p)))), true, theorem(implies(implies(not(not(p)), or(not(not(p)), p)), or(not(not(p)), implies(not(not(p)), p)))), true), true, ifeq(theorem(implies(not(not(p)), or(not(not(p)), p))), true, theorem(or(not(not(p)), implies(not(not(p)), p))), true), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.76 = { by axiom 5 (rule_1) }
% 33.99/4.76 ifeq(ifeq(ifeq(ifeq(true, true, ifeq(theorem(implies(not(not(p)), or(not(not(p)), p))), true, theorem(or(not(not(p)), implies(not(not(p)), p))), true), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.76 = { by axiom 2 (ifeq_axiom) }
% 33.99/4.76 ifeq(ifeq(ifeq(ifeq(theorem(implies(not(not(p)), or(not(not(p)), p))), true, theorem(or(not(not(p)), implies(not(not(p)), p))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.76 = { by axiom 2 (ifeq_axiom) R->L }
% 33.99/4.76 ifeq(ifeq(ifeq(ifeq(ifeq(true, true, theorem(implies(not(not(p)), or(not(not(p)), p))), true), true, theorem(or(not(not(p)), implies(not(not(p)), p))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.76 = { by axiom 9 (rule_2) R->L }
% 33.99/4.76 ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(theorem(implies(implies(or(p, not(not(p))), or(not(not(p)), p)), implies(implies(not(not(p)), or(p, not(not(p)))), implies(not(not(p)), or(not(not(p)), p))))), true, ifeq(theorem(implies(or(p, not(not(p))), or(not(not(p)), p))), true, theorem(implies(implies(not(not(p)), or(p, not(not(p)))), implies(not(not(p)), or(not(not(p)), p)))), true), true), true, theorem(implies(not(not(p)), or(not(not(p)), p))), true), true, theorem(or(not(not(p)), implies(not(not(p)), p))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.76 = { by axiom 2 (ifeq_axiom) R->L }
% 33.99/4.76 ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(theorem(implies(implies(or(p, not(not(p))), or(not(not(p)), p)), implies(implies(not(not(p)), or(p, not(not(p)))), implies(not(not(p)), or(not(not(p)), p))))), true, ifeq(ifeq(true, true, theorem(implies(or(p, not(not(p))), or(not(not(p)), p))), true), true, theorem(implies(implies(not(not(p)), or(p, not(not(p)))), implies(not(not(p)), or(not(not(p)), p)))), true), true), true, theorem(implies(not(not(p)), or(not(not(p)), p))), true), true, theorem(or(not(not(p)), implies(not(not(p)), p))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.76 = { by axiom 6 (axiom_1_4) R->L }
% 33.99/4.76 ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(theorem(implies(implies(or(p, not(not(p))), or(not(not(p)), p)), implies(implies(not(not(p)), or(p, not(not(p)))), implies(not(not(p)), or(not(not(p)), p))))), true, ifeq(ifeq(axiom(implies(or(p, not(not(p))), or(not(not(p)), p))), true, theorem(implies(or(p, not(not(p))), or(not(not(p)), p))), true), true, theorem(implies(implies(not(not(p)), or(p, not(not(p)))), implies(not(not(p)), or(not(not(p)), p)))), true), true), true, theorem(implies(not(not(p)), or(not(not(p)), p))), true), true, theorem(or(not(not(p)), implies(not(not(p)), p))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.76 = { by axiom 5 (rule_1) }
% 33.99/4.77 ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(theorem(implies(implies(or(p, not(not(p))), or(not(not(p)), p)), implies(implies(not(not(p)), or(p, not(not(p)))), implies(not(not(p)), or(not(not(p)), p))))), true, ifeq(true, true, theorem(implies(implies(not(not(p)), or(p, not(not(p)))), implies(not(not(p)), or(not(not(p)), p)))), true), true), true, theorem(implies(not(not(p)), or(not(not(p)), p))), true), true, theorem(or(not(not(p)), implies(not(not(p)), p))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.77 = { by axiom 2 (ifeq_axiom) }
% 33.99/4.77 ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(theorem(implies(implies(or(p, not(not(p))), or(not(not(p)), p)), implies(implies(not(not(p)), or(p, not(not(p)))), implies(not(not(p)), or(not(not(p)), p))))), true, theorem(implies(implies(not(not(p)), or(p, not(not(p)))), implies(not(not(p)), or(not(not(p)), p)))), true), true, theorem(implies(not(not(p)), or(not(not(p)), p))), true), true, theorem(or(not(not(p)), implies(not(not(p)), p))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.77 = { by axiom 2 (ifeq_axiom) R->L }
% 33.99/4.77 ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, theorem(implies(implies(or(p, not(not(p))), or(not(not(p)), p)), implies(implies(not(not(p)), or(p, not(not(p)))), implies(not(not(p)), or(not(not(p)), p))))), true), true, theorem(implies(implies(not(not(p)), or(p, not(not(p)))), implies(not(not(p)), or(not(not(p)), p)))), true), true, theorem(implies(not(not(p)), or(not(not(p)), p))), true), true, theorem(or(not(not(p)), implies(not(not(p)), p))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.77 = { by axiom 7 (axiom_1_6) R->L }
% 33.99/4.77 ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(axiom(implies(implies(or(p, not(not(p))), or(not(not(p)), p)), implies(or(not(not(not(p))), or(p, not(not(p)))), or(not(not(not(p))), or(not(not(p)), p))))), true, theorem(implies(implies(or(p, not(not(p))), or(not(not(p)), p)), implies(implies(not(not(p)), or(p, not(not(p)))), implies(not(not(p)), or(not(not(p)), p))))), true), true, theorem(implies(implies(not(not(p)), or(p, not(not(p)))), implies(not(not(p)), or(not(not(p)), p)))), true), true, theorem(implies(not(not(p)), or(not(not(p)), p))), true), true, theorem(or(not(not(p)), implies(not(not(p)), p))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.77 = { by axiom 1 (implies_definition) R->L }
% 33.99/4.77 ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(axiom(implies(implies(or(p, not(not(p))), or(not(not(p)), p)), implies(implies(not(not(p)), or(p, not(not(p)))), or(not(not(not(p))), or(not(not(p)), p))))), true, theorem(implies(implies(or(p, not(not(p))), or(not(not(p)), p)), implies(implies(not(not(p)), or(p, not(not(p)))), implies(not(not(p)), or(not(not(p)), p))))), true), true, theorem(implies(implies(not(not(p)), or(p, not(not(p)))), implies(not(not(p)), or(not(not(p)), p)))), true), true, theorem(implies(not(not(p)), or(not(not(p)), p))), true), true, theorem(or(not(not(p)), implies(not(not(p)), p))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.77 = { by axiom 1 (implies_definition) R->L }
% 33.99/4.77 ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(axiom(implies(implies(or(p, not(not(p))), or(not(not(p)), p)), implies(implies(not(not(p)), or(p, not(not(p)))), implies(not(not(p)), or(not(not(p)), p))))), true, theorem(implies(implies(or(p, not(not(p))), or(not(not(p)), p)), implies(implies(not(not(p)), or(p, not(not(p)))), implies(not(not(p)), or(not(not(p)), p))))), true), true, theorem(implies(implies(not(not(p)), or(p, not(not(p)))), implies(not(not(p)), or(not(not(p)), p)))), true), true, theorem(implies(not(not(p)), or(not(not(p)), p))), true), true, theorem(or(not(not(p)), implies(not(not(p)), p))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.77 = { by axiom 5 (rule_1) }
% 33.99/4.77 ifeq(ifeq(ifeq(ifeq(ifeq(ifeq(true, true, theorem(implies(implies(not(not(p)), or(p, not(not(p)))), implies(not(not(p)), or(not(not(p)), p)))), true), true, theorem(implies(not(not(p)), or(not(not(p)), p))), true), true, theorem(or(not(not(p)), implies(not(not(p)), p))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.77 = { by axiom 2 (ifeq_axiom) }
% 33.99/4.77 ifeq(ifeq(ifeq(ifeq(ifeq(theorem(implies(implies(not(not(p)), or(p, not(not(p)))), implies(not(not(p)), or(not(not(p)), p)))), true, theorem(implies(not(not(p)), or(not(not(p)), p))), true), true, theorem(or(not(not(p)), implies(not(not(p)), p))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.78 = { by axiom 2 (ifeq_axiom) R->L }
% 33.99/4.78 ifeq(ifeq(ifeq(ifeq(ifeq(theorem(implies(implies(not(not(p)), or(p, not(not(p)))), implies(not(not(p)), or(not(not(p)), p)))), true, ifeq(true, true, theorem(implies(not(not(p)), or(not(not(p)), p))), true), true), true, theorem(or(not(not(p)), implies(not(not(p)), p))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.78 = { by axiom 5 (rule_1) R->L }
% 33.99/4.78 ifeq(ifeq(ifeq(ifeq(ifeq(theorem(implies(implies(not(not(p)), or(p, not(not(p)))), implies(not(not(p)), or(not(not(p)), p)))), true, ifeq(ifeq(axiom(implies(not(not(p)), or(p, not(not(p))))), true, theorem(implies(not(not(p)), or(p, not(not(p))))), true), true, theorem(implies(not(not(p)), or(not(not(p)), p))), true), true), true, theorem(or(not(not(p)), implies(not(not(p)), p))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.78 = { by axiom 3 (axiom_1_3) }
% 33.99/4.78 ifeq(ifeq(ifeq(ifeq(ifeq(theorem(implies(implies(not(not(p)), or(p, not(not(p)))), implies(not(not(p)), or(not(not(p)), p)))), true, ifeq(ifeq(true, true, theorem(implies(not(not(p)), or(p, not(not(p))))), true), true, theorem(implies(not(not(p)), or(not(not(p)), p))), true), true), true, theorem(or(not(not(p)), implies(not(not(p)), p))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.78 = { by axiom 2 (ifeq_axiom) }
% 33.99/4.78 ifeq(ifeq(ifeq(ifeq(ifeq(theorem(implies(implies(not(not(p)), or(p, not(not(p)))), implies(not(not(p)), or(not(not(p)), p)))), true, ifeq(theorem(implies(not(not(p)), or(p, not(not(p))))), true, theorem(implies(not(not(p)), or(not(not(p)), p))), true), true), true, theorem(or(not(not(p)), implies(not(not(p)), p))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.78 = { by axiom 9 (rule_2) }
% 33.99/4.78 ifeq(ifeq(ifeq(ifeq(true, true, theorem(or(not(not(p)), implies(not(not(p)), p))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.78 = { by axiom 2 (ifeq_axiom) }
% 33.99/4.78 ifeq(ifeq(ifeq(theorem(or(not(not(p)), implies(not(not(p)), p))), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.78 = { by axiom 1 (implies_definition) R->L }
% 33.99/4.78 ifeq(ifeq(ifeq(theorem(implies(not(p), implies(not(not(p)), p))), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.78 = { by axiom 2 (ifeq_axiom) R->L }
% 33.99/4.78 ifeq(ifeq(ifeq(true, true, ifeq(theorem(implies(not(p), implies(not(not(p)), p))), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.78 = { by axiom 5 (rule_1) R->L }
% 33.99/4.78 ifeq(ifeq(ifeq(ifeq(axiom(implies(implies(not(p), implies(not(not(p)), p)), implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p))))), true, theorem(implies(implies(not(p), implies(not(not(p)), p)), implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p))))), true), true, ifeq(theorem(implies(not(p), implies(not(not(p)), p))), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.78 = { by axiom 7 (axiom_1_6) }
% 33.99/4.78 ifeq(ifeq(ifeq(ifeq(true, true, theorem(implies(implies(not(p), implies(not(not(p)), p)), implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p))))), true), true, ifeq(theorem(implies(not(p), implies(not(not(p)), p))), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.78 = { by axiom 2 (ifeq_axiom) }
% 33.99/4.78 ifeq(ifeq(ifeq(theorem(implies(implies(not(p), implies(not(not(p)), p)), implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p))))), true, ifeq(theorem(implies(not(p), implies(not(not(p)), p))), true, theorem(implies(or(implies(not(not(p)), p), not(p)), or(implies(not(not(p)), p), implies(not(not(p)), p)))), true), true), true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.78 = { by axiom 9 (rule_2) }
% 33.99/4.78 ifeq(ifeq(true, true, theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.78 = { by axiom 2 (ifeq_axiom) }
% 33.99/4.78 ifeq(theorem(implies(or(implies(not(not(p)), p), not(p)), implies(not(not(p)), p))), true, ifeq(theorem(or(implies(not(not(p)), p), not(p))), true, theorem(implies(not(not(p)), p)), true), true)
% 33.99/4.78 = { by axiom 9 (rule_2) }
% 33.99/4.78 true
% 33.99/4.78 % SZS output end Proof
% 33.99/4.78
% 33.99/4.78 RESULT: Unsatisfiable (the axioms are contradictory).
%------------------------------------------------------------------------------