%------------------------------------------------------------------------------
% File : Twee---2.7
% Problem : GRP091-1 : TPTP v9.3.1. Bugfixed v2.7.0.
% Transfm : none
% Format : tptp:raw
% Command : run_twee /export/starexec/sandbox/benchmark/theBenchmark.p
% Computer : n005.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 10:09:14 AM UTC 2026
% Result : Unsatisfiable 0.36s 0.50s
% Output : Proof 0.36s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : GRP091-1 : TPTP v9.3.1. Bugfixed v2.7.0.
% 0.00/0.04 % Command : run_twee /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.11/0.36 % Computer : n005.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 09:18:31 UTC 2026
% 0.11/0.36 % CPUTime :
% 0.11/0.36 Running run_twee /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.36/0.50 Command-line arguments: --no-flatten-goal
% 0.36/0.50
% 0.36/0.50 % SZS status Unsatisfiable
% 0.36/0.50
% 0.36/0.51 % SZS output start Proof
% 0.36/0.51 Axiom 1 (identity): identity = divide(X, X).
% 0.36/0.51 Axiom 2 (inverse): inverse(X) = divide(divide(Y, Y), X).
% 0.36/0.51 Axiom 3 (multiply): multiply(X, Y) = divide(X, divide(divide(Z, Z), Y)).
% 0.36/0.51 Axiom 4 (single_axiom): divide(divide(X, divide(divide(X, Y), Z)), Y) = Z.
% 0.36/0.51
% 0.36/0.51 Lemma 5: divide(identity, X) = inverse(X).
% 0.36/0.51 Proof:
% 0.36/0.51 divide(identity, X)
% 0.36/0.51 = { by axiom 1 (identity) }
% 0.36/0.51 divide(divide(Y, Y), X)
% 0.36/0.51 = { by axiom 2 (inverse) R->L }
% 0.36/0.51 inverse(X)
% 0.36/0.51
% 0.36/0.51 Lemma 6: multiply(X, Y) = divide(X, inverse(Y)).
% 0.36/0.51 Proof:
% 0.36/0.51 multiply(X, Y)
% 0.36/0.51 = { by axiom 3 (multiply) }
% 0.36/0.51 divide(X, divide(divide(Z, Z), Y))
% 0.36/0.51 = { by axiom 1 (identity) R->L }
% 0.36/0.51 divide(X, divide(identity, Y))
% 0.36/0.51 = { by lemma 5 }
% 0.36/0.51 divide(X, inverse(Y))
% 0.36/0.51
% 0.36/0.51 Lemma 7: divide(divide(X, inverse(Y)), X) = Y.
% 0.36/0.51 Proof:
% 0.36/0.51 divide(divide(X, inverse(Y)), X)
% 0.36/0.51 = { by lemma 5 R->L }
% 0.36/0.51 divide(divide(X, divide(identity, Y)), X)
% 0.36/0.51 = { by axiom 1 (identity) }
% 0.36/0.51 divide(divide(X, divide(divide(X, X), Y)), X)
% 0.36/0.51 = { by axiom 4 (single_axiom) }
% 0.36/0.51 Y
% 0.36/0.51
% 0.36/0.51 Lemma 8: inverse(inverse(X)) = X.
% 0.36/0.51 Proof:
% 0.36/0.51 inverse(inverse(X))
% 0.36/0.51 = { by lemma 5 R->L }
% 0.36/0.51 divide(identity, inverse(X))
% 0.36/0.51 = { by axiom 1 (identity) }
% 0.36/0.51 divide(divide(inverse(X), inverse(X)), inverse(X))
% 0.36/0.51 = { by lemma 7 }
% 0.36/0.51 X
% 0.36/0.51
% 0.36/0.51 Lemma 9: divide(divide(X, Y), inverse(Y)) = X.
% 0.36/0.51 Proof:
% 0.36/0.51 divide(divide(X, Y), inverse(Y))
% 0.36/0.51 = { by lemma 7 R->L }
% 0.36/0.51 divide(divide(X, divide(divide(X, inverse(Y)), X)), inverse(Y))
% 0.36/0.51 = { by axiom 4 (single_axiom) }
% 0.36/0.51 X
% 0.36/0.51
% 0.36/0.51 Lemma 10: divide(Y, inverse(X)) = divide(X, inverse(Y)).
% 0.36/0.51 Proof:
% 0.36/0.51 divide(Y, inverse(X))
% 0.36/0.51 = { by lemma 7 R->L }
% 0.36/0.51 divide(divide(divide(X, inverse(Y)), X), inverse(X))
% 0.36/0.51 = { by lemma 9 }
% 0.36/0.51 divide(X, inverse(Y))
% 0.36/0.51
% 0.36/0.51 Lemma 11: inverse(divide(X, Y)) = divide(Y, X).
% 0.36/0.51 Proof:
% 0.36/0.51 inverse(divide(X, Y))
% 0.36/0.51 = { by lemma 7 R->L }
% 0.36/0.51 divide(divide(X, inverse(inverse(divide(X, Y)))), X)
% 0.36/0.51 = { by lemma 8 }
% 0.36/0.51 divide(divide(X, divide(X, Y)), X)
% 0.36/0.51 = { by axiom 4 (single_axiom) R->L }
% 0.36/0.51 divide(divide(X, divide(divide(X, divide(divide(X, Y), divide(X, Y))), Y)), X)
% 0.36/0.51 = { by axiom 1 (identity) R->L }
% 0.36/0.51 divide(divide(X, divide(divide(X, identity), Y)), X)
% 0.36/0.51 = { by lemma 7 R->L }
% 0.36/0.51 divide(divide(divide(identity, inverse(divide(X, divide(divide(X, identity), Y)))), identity), X)
% 0.36/0.51 = { by lemma 5 }
% 0.36/0.51 divide(divide(inverse(inverse(divide(X, divide(divide(X, identity), Y)))), identity), X)
% 0.36/0.51 = { by lemma 8 }
% 0.36/0.51 divide(divide(divide(X, divide(divide(X, identity), Y)), identity), X)
% 0.36/0.51 = { by axiom 4 (single_axiom) }
% 0.36/0.51 divide(Y, X)
% 0.36/0.51
% 0.36/0.51 Goal 1 (prove_these_axioms): tuple(multiply(multiply(inverse(b2), b2), a2), multiply(multiply(a3, b3), c3), multiply(inverse(a1), a1), multiply(a4, b4)) = tuple(a2, multiply(a3, multiply(b3, c3)), multiply(inverse(b1), b1), multiply(b4, a4)).
% 0.36/0.51 Proof:
% 0.36/0.51 tuple(multiply(multiply(inverse(b2), b2), a2), multiply(multiply(a3, b3), c3), multiply(inverse(a1), a1), multiply(a4, b4))
% 0.36/0.51 = { by lemma 6 }
% 0.36/0.51 tuple(multiply(multiply(inverse(b2), b2), a2), multiply(multiply(a3, b3), c3), divide(inverse(a1), inverse(a1)), multiply(a4, b4))
% 0.36/0.51 = { by axiom 1 (identity) R->L }
% 0.36/0.51 tuple(multiply(multiply(inverse(b2), b2), a2), multiply(multiply(a3, b3), c3), identity, multiply(a4, b4))
% 0.36/0.51 = { by lemma 6 }
% 0.36/0.51 tuple(multiply(divide(inverse(b2), inverse(b2)), a2), multiply(multiply(a3, b3), c3), identity, multiply(a4, b4))
% 0.36/0.51 = { by axiom 1 (identity) R->L }
% 0.36/0.51 tuple(multiply(identity, a2), multiply(multiply(a3, b3), c3), identity, multiply(a4, b4))
% 0.36/0.51 = { by lemma 6 }
% 0.36/0.51 tuple(divide(identity, inverse(a2)), multiply(multiply(a3, b3), c3), identity, multiply(a4, b4))
% 0.36/0.51 = { by lemma 5 }
% 0.36/0.51 tuple(inverse(inverse(a2)), multiply(multiply(a3, b3), c3), identity, multiply(a4, b4))
% 0.36/0.51 = { by lemma 6 }
% 0.36/0.51 tuple(inverse(inverse(a2)), multiply(divide(a3, inverse(b3)), c3), identity, multiply(a4, b4))
% 0.36/0.51 = { by lemma 6 }
% 0.36/0.51 tuple(inverse(inverse(a2)), divide(divide(a3, inverse(b3)), inverse(c3)), identity, multiply(a4, b4))
% 0.36/0.51 = { by lemma 6 }
% 0.36/0.51 tuple(inverse(inverse(a2)), divide(divide(a3, inverse(b3)), inverse(c3)), identity, divide(a4, inverse(b4)))
% 0.36/0.51 = { by lemma 8 }
% 0.36/0.51 tuple(a2, divide(divide(a3, inverse(b3)), inverse(c3)), identity, divide(a4, inverse(b4)))
% 0.36/0.51 = { by lemma 10 R->L }
% 0.36/0.51 tuple(a2, divide(c3, inverse(divide(a3, inverse(b3)))), identity, divide(a4, inverse(b4)))
% 0.36/0.51 = { by axiom 4 (single_axiom) R->L }
% 0.36/0.52 tuple(a2, divide(divide(divide(a3, divide(divide(a3, divide(a3, inverse(b3))), c3)), divide(a3, inverse(b3))), inverse(divide(a3, inverse(b3)))), identity, divide(a4, inverse(b4)))
% 0.36/0.52 = { by lemma 9 }
% 0.36/0.52 tuple(a2, divide(a3, divide(divide(a3, divide(a3, inverse(b3))), c3)), identity, divide(a4, inverse(b4)))
% 0.36/0.52 = { by lemma 8 R->L }
% 0.36/0.52 tuple(a2, divide(a3, divide(divide(a3, divide(a3, inverse(b3))), inverse(inverse(c3)))), identity, divide(a4, inverse(b4)))
% 0.36/0.52 = { by lemma 10 R->L }
% 0.36/0.52 tuple(a2, divide(a3, divide(inverse(c3), inverse(divide(a3, divide(a3, inverse(b3)))))), identity, divide(a4, inverse(b4)))
% 0.36/0.52 = { by lemma 11 }
% 0.36/0.52 tuple(a2, divide(a3, divide(inverse(c3), divide(divide(a3, inverse(b3)), a3))), identity, divide(a4, inverse(b4)))
% 0.36/0.52 = { by lemma 7 }
% 0.36/0.52 tuple(a2, divide(a3, divide(inverse(c3), b3)), identity, divide(a4, inverse(b4)))
% 0.36/0.52 = { by lemma 10 }
% 0.36/0.52 tuple(a2, divide(a3, divide(inverse(c3), b3)), identity, divide(b4, inverse(a4)))
% 0.36/0.52 = { by lemma 11 R->L }
% 0.36/0.52 tuple(a2, divide(a3, inverse(divide(b3, inverse(c3)))), identity, divide(b4, inverse(a4)))
% 0.36/0.52 = { by lemma 6 R->L }
% 0.36/0.52 tuple(a2, divide(a3, inverse(divide(b3, inverse(c3)))), identity, multiply(b4, a4))
% 0.36/0.52 = { by lemma 6 R->L }
% 0.36/0.52 tuple(a2, multiply(a3, divide(b3, inverse(c3))), identity, multiply(b4, a4))
% 0.36/0.52 = { by lemma 6 R->L }
% 0.36/0.52 tuple(a2, multiply(a3, multiply(b3, c3)), identity, multiply(b4, a4))
% 0.36/0.52 = { by axiom 1 (identity) }
% 0.36/0.52 tuple(a2, multiply(a3, multiply(b3, c3)), divide(inverse(b1), inverse(b1)), multiply(b4, a4))
% 0.36/0.52 = { by lemma 6 R->L }
% 0.36/0.52 tuple(a2, multiply(a3, multiply(b3, c3)), multiply(inverse(b1), b1), multiply(b4, a4))
% 0.36/0.52 % SZS output end Proof
% 0.36/0.52
% 0.36/0.52 RESULT: Unsatisfiable (the axioms are contradictory).
%------------------------------------------------------------------------------