%------------------------------------------------------------------------------
% File : Twee---2.7
% Problem : LCL212-3 : TPTP v9.3.1. Released v2.3.0.
% Transfm : none
% Format : tptp:raw
% Command : run_twee /export/starexec/sandbox2/benchmark/theBenchmark.p
% Computer : n019.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 11:49:22 AM UTC 2026
% Result : Unsatisfiable 0.15s 0.44s
% Output : Proof 0.15s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : LCL212-3 : TPTP v9.3.1. Released v2.3.0.
% 0.00/0.05 % Command : run_twee /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.11/0.36 % Computer : n019.cluster.edu
% 0.11/0.36 % Model : x86_64 x86_64
% 0.11/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.36 % Memory : 8046.5625MB
% 0.11/0.36 % OS : Linux 6.8.0-71-generic
% 0.11/0.36 % CPULimit : 300
% 0.11/0.36 % WCLimit : 300
% 0.11/0.36 % DateTime : Sun Sep 27 15:26:48 UTC 2026
% 0.11/0.37 % CPUTime :
% 0.11/0.37 Running run_twee /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.15/0.44 Command-line arguments: --flatten-regeneralise
% 0.15/0.44
% 0.15/0.44 % SZS status Unsatisfiable
% 0.15/0.44
% 0.15/0.44 % SZS output start Proof
% 0.15/0.44 Axiom 1 (implies_definition): implies(X, Y) = or(not(X), Y).
% 0.15/0.44 Axiom 2 (ifeq_axiom): ifeq(X, X, Y, Z) = Y.
% 0.15/0.44 Axiom 3 (rule_1): ifeq(axiom(X), true, theorem(X), true) = true.
% 0.15/0.44 Axiom 4 (axiom_1_3): axiom(implies(X, or(Y, X))) = true.
% 0.15/0.44 Axiom 5 (rule_2): ifeq(theorem(implies(X, Y)), true, ifeq(theorem(X), true, theorem(Y), true), true) = true.
% 0.15/0.44
% 0.15/0.44 Goal 1 (prove_this): theorem(implies(not(p), implies(q, implies(implies(p, q), q)))) = true.
% 0.15/0.44 Proof:
% 0.15/0.44 theorem(implies(not(p), implies(q, implies(implies(p, q), q))))
% 0.15/0.44 = { by axiom 2 (ifeq_axiom) R->L }
% 0.15/0.44 ifeq(true, true, theorem(implies(not(p), implies(q, implies(implies(p, q), q)))), true)
% 0.15/0.44 = { by axiom 3 (rule_1) R->L }
% 0.15/0.44 ifeq(ifeq(axiom(implies(q, implies(implies(p, q), q))), true, theorem(implies(q, implies(implies(p, q), q))), true), true, theorem(implies(not(p), implies(q, implies(implies(p, q), q)))), true)
% 0.15/0.44 = { by axiom 1 (implies_definition) }
% 0.15/0.44 ifeq(ifeq(axiom(implies(q, or(not(implies(p, q)), q))), true, theorem(implies(q, implies(implies(p, q), q))), true), true, theorem(implies(not(p), implies(q, implies(implies(p, q), q)))), true)
% 0.15/0.44 = { by axiom 4 (axiom_1_3) }
% 0.15/0.44 ifeq(ifeq(true, true, theorem(implies(q, implies(implies(p, q), q))), true), true, theorem(implies(not(p), implies(q, implies(implies(p, q), q)))), true)
% 0.15/0.44 = { by axiom 2 (ifeq_axiom) }
% 0.15/0.44 ifeq(theorem(implies(q, implies(implies(p, q), q))), true, theorem(implies(not(p), implies(q, implies(implies(p, q), q)))), true)
% 0.15/0.44 = { by axiom 2 (ifeq_axiom) R->L }
% 0.15/0.44 ifeq(true, true, ifeq(theorem(implies(q, implies(implies(p, q), q))), true, theorem(implies(not(p), implies(q, implies(implies(p, q), q)))), true), true)
% 0.15/0.44 = { by axiom 3 (rule_1) R->L }
% 0.15/0.44 ifeq(ifeq(axiom(implies(implies(q, implies(implies(p, q), q)), implies(not(p), implies(q, implies(implies(p, q), q))))), true, theorem(implies(implies(q, implies(implies(p, q), q)), implies(not(p), implies(q, implies(implies(p, q), q))))), true), true, ifeq(theorem(implies(q, implies(implies(p, q), q))), true, theorem(implies(not(p), implies(q, implies(implies(p, q), q)))), true), true)
% 0.15/0.44 = { by axiom 1 (implies_definition) }
% 0.15/0.44 ifeq(ifeq(axiom(implies(implies(q, implies(implies(p, q), q)), or(not(not(p)), implies(q, implies(implies(p, q), q))))), true, theorem(implies(implies(q, implies(implies(p, q), q)), implies(not(p), implies(q, implies(implies(p, q), q))))), true), true, ifeq(theorem(implies(q, implies(implies(p, q), q))), true, theorem(implies(not(p), implies(q, implies(implies(p, q), q)))), true), true)
% 0.15/0.44 = { by axiom 4 (axiom_1_3) }
% 0.15/0.44 ifeq(ifeq(true, true, theorem(implies(implies(q, implies(implies(p, q), q)), implies(not(p), implies(q, implies(implies(p, q), q))))), true), true, ifeq(theorem(implies(q, implies(implies(p, q), q))), true, theorem(implies(not(p), implies(q, implies(implies(p, q), q)))), true), true)
% 0.15/0.44 = { by axiom 2 (ifeq_axiom) }
% 0.15/0.44 ifeq(theorem(implies(implies(q, implies(implies(p, q), q)), implies(not(p), implies(q, implies(implies(p, q), q))))), true, ifeq(theorem(implies(q, implies(implies(p, q), q))), true, theorem(implies(not(p), implies(q, implies(implies(p, q), q)))), true), true)
% 0.15/0.44 = { by axiom 5 (rule_2) }
% 0.15/0.44 true
% 0.15/0.44 % SZS output end Proof
% 0.15/0.44
% 0.15/0.44 RESULT: Unsatisfiable (the axioms are contradictory).
%------------------------------------------------------------------------------