%------------------------------------------------------------------------------
% File : Twee---2.7
% Problem : GRP612-1 : TPTP v9.3.1. Bugfixed v2.7.0.
% Transfm : none
% Format : tptp:raw
% Command : run_twee /export/starexec/sandbox/benchmark/theBenchmark.p
% Computer : n001.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 10:11:23 AM UTC 2026
% Result : Unsatisfiable 0.12s 0.48s
% Output : CNFRefutation 0.55s
% Verified :
% SZS Type : Refutation
% Derivation depth : 54
% Number of leaves : 3
% Syntax : Number of clauses : 128 ( 128 unt; 0 nHn; 3 RR)
% Number of literals : 128 ( 127 equ; 1 neg)
% Maximal clause size : 1 ( 1 avg)
% Maximal term depth : 7 ( 2 avg)
% Number of predicates : 2 ( 0 usr; 1 prp; 0-2 aty)
% Number of functors : 5 ( 5 usr; 2 con; 0-2 aty)
% Number of variables : 411 ( 0 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(c1,negated_conjecture,
multiply(a,b) != multiply(b,a),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_these_axioms_4) ).
cnf(c2,axiom,
multiply(A,B) = inverse(double_divide(B,A)),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',multiply) ).
cnf(c3,plain,
multiply(double_divide(X,X3),multiply(X2,X)) = inverse(double_divide(multiply(X2,X),double_divide(X,X3))),
inference(substitution,[status(thm)],[c2]) ).
cnf(c4,plain,
multiply(X,X2) = inverse(double_divide(X2,X)),
inference(substitution,[status(thm)],[c2]) ).
cnf(c5,plain,
multiply(X2,multiply(X,X3)) = multiply(X2,inverse(double_divide(X3,X))),
inference(congruence,[status(thm)],[c4]) ).
cnf(c6,plain,
multiply(double_divide(X3,X2),multiply(X2,multiply(X,X3))) = multiply(double_divide(X3,X2),multiply(X2,inverse(double_divide(X3,X)))),
inference(congruence,[status(thm)],[c5]) ).
cnf(c7,plain,
multiply(X2,inverse(double_divide(X3,X))) = inverse(double_divide(inverse(double_divide(X3,X)),X2)),
inference(substitution,[status(thm)],[c2]) ).
cnf(c8,plain,
multiply(double_divide(X3,X2),multiply(X2,inverse(double_divide(X3,X)))) = multiply(double_divide(X3,X2),inverse(double_divide(inverse(double_divide(X3,X)),X2))),
inference(congruence,[status(thm)],[c7]) ).
cnf(c9,plain,
multiply(double_divide(X3,X2),inverse(double_divide(inverse(double_divide(X3,X)),X2))) = inverse(double_divide(inverse(double_divide(inverse(double_divide(X3,X)),X2)),double_divide(X3,X2))),
inference(substitution,[status(thm)],[c2]) ).
cnf(c10,axiom,
inverse(double_divide(inverse(double_divide(inverse(double_divide(A2,B2)),C)),double_divide(A2,C))) = B2,
file('/export/starexec/sandbox/benchmark/theBenchmark.p',single_axiom) ).
cnf(c11,plain,
inverse(double_divide(inverse(double_divide(inverse(double_divide(X3,X)),X2)),double_divide(X3,X2))) = X,
inference(substitution,[status(thm)],[c10]) ).
cnf(c12,plain,
multiply(double_divide(X3,X2),inverse(double_divide(inverse(double_divide(X3,X)),X2))) = X,
inference(transitivity,[status(thm)],[c9,c11]) ).
cnf(c13,plain,
multiply(double_divide(X3,X2),multiply(X2,inverse(double_divide(X3,X)))) = X,
inference(transitivity,[status(thm)],[c8,c12]) ).
cnf(c14,plain,
multiply(double_divide(X3,X2),multiply(X2,multiply(X,X3))) = X,
inference(transitivity,[status(thm)],[c6,c13]) ).
cnf(c15,plain,
multiply(double_divide(X4,X),multiply(X,multiply(double_divide(multiply(X4,X3),double_divide(X3,X2)),X4))) = double_divide(multiply(X4,X3),double_divide(X3,X2)),
inference(substitution,[status(thm)],[c14]) ).
cnf(c16,plain,
double_divide(multiply(X4,X3),double_divide(X3,X2)) = multiply(double_divide(X4,X),multiply(X,multiply(double_divide(multiply(X4,X3),double_divide(X3,X2)),X4))),
inference(symmetry,[status(thm)],[c15]) ).
cnf(c17,plain,
multiply(double_divide(X2,X),multiply(X,multiply(X3,X2))) = X3,
inference(substitution,[status(thm)],[c14]) ).
cnf(c18,plain,
X3 = multiply(double_divide(X2,X),multiply(X,multiply(X3,X2))),
inference(symmetry,[status(thm)],[c17]) ).
cnf(c19,plain,
multiply(double_divide(multiply(X3,X2),double_divide(X2,X)),X3) = multiply(double_divide(multiply(X3,X2),double_divide(X2,X)),multiply(double_divide(X2,X),multiply(X,multiply(X3,X2)))),
inference(congruence,[status(thm)],[c18]) ).
cnf(c20,plain,
multiply(double_divide(multiply(X3,X2),double_divide(X2,X)),multiply(double_divide(X2,X),multiply(X,multiply(X3,X2)))) = X,
inference(substitution,[status(thm)],[c14]) ).
cnf(c21,plain,
multiply(double_divide(multiply(X3,X2),double_divide(X2,X)),X3) = X,
inference(transitivity,[status(thm)],[c19,c20]) ).
cnf(c22,plain,
multiply(X,multiply(double_divide(multiply(X4,X3),double_divide(X3,X2)),X4)) = multiply(X,X2),
inference(congruence,[status(thm)],[c21]) ).
cnf(c23,plain,
multiply(double_divide(X4,X),multiply(X,multiply(double_divide(multiply(X4,X3),double_divide(X3,X2)),X4))) = multiply(double_divide(X4,X),multiply(X,X2)),
inference(congruence,[status(thm)],[c22]) ).
cnf(c24,plain,
double_divide(multiply(X4,X3),double_divide(X3,X2)) = multiply(double_divide(X4,X),multiply(X,X2)),
inference(transitivity,[status(thm)],[c16,c23]) ).
cnf(c25,plain,
double_divide(multiply(X2,X),double_divide(X,X3)) = multiply(double_divide(X2,X4),multiply(X4,X3)),
inference(substitution,[status(thm)],[c24]) ).
cnf(c26,plain,
inverse(double_divide(multiply(X3,X2),double_divide(X2,X4))) = inverse(multiply(double_divide(X3,X),multiply(X,X4))),
inference(congruence,[status(thm)],[c25]) ).
cnf(c27,plain,
double_divide(multiply(X2,X4),double_divide(X4,X3)) = multiply(double_divide(X2,X),multiply(X,X3)),
inference(substitution,[status(thm)],[c24]) ).
cnf(c28,plain,
multiply(double_divide(X2,X),multiply(X,X3)) = double_divide(multiply(X2,X4),double_divide(X4,X3)),
inference(symmetry,[status(thm)],[c27]) ).
cnf(c29,plain,
inverse(multiply(double_divide(X2,X),multiply(X,X3))) = inverse(double_divide(multiply(X2,X4),double_divide(X4,X3))),
inference(congruence,[status(thm)],[c28]) ).
cnf(c30,plain,
multiply(double_divide(X3,X2),multiply(X,X3)) = inverse(double_divide(multiply(X,X3),double_divide(X3,X2))),
inference(substitution,[status(thm)],[c2]) ).
cnf(c31,plain,
inverse(double_divide(multiply(X,X3),double_divide(X3,X2))) = multiply(double_divide(X3,X2),multiply(X,X3)),
inference(symmetry,[status(thm)],[c30]) ).
cnf(c32,plain,
inverse(multiply(double_divide(X2,X),multiply(X,X3))) = multiply(double_divide(X4,X3),multiply(X2,X4)),
inference(transitivity,[status(thm)],[c29,c31]) ).
cnf(c33,plain,
inverse(double_divide(multiply(X2,X),double_divide(X,X3))) = multiply(double_divide(X4,X3),multiply(X2,X4)),
inference(transitivity,[status(thm)],[c26,c32]) ).
cnf(c34,plain,
multiply(double_divide(X,X3),multiply(X2,X)) = multiply(double_divide(X4,X3),multiply(X2,X4)),
inference(transitivity,[status(thm)],[c3,c33]) ).
cnf(c35,plain,
multiply(double_divide(X3,X2),multiply(X2,X3)) = multiply(double_divide(X,X2),multiply(X2,X)),
inference(substitution,[status(thm)],[c34]) ).
cnf(c36,plain,
multiply(multiply(double_divide(X3,X2),multiply(X2,X3)),X) = multiply(multiply(double_divide(X,X2),multiply(X2,X)),X),
inference(congruence,[status(thm)],[c35]) ).
cnf(c37,plain,
double_divide(multiply(X4,X),double_divide(X,X2)) = multiply(double_divide(X4,X3),multiply(X3,X2)),
inference(substitution,[status(thm)],[c24]) ).
cnf(c38,plain,
multiply(double_divide(X4,X3),multiply(X3,X2)) = double_divide(multiply(X4,X),double_divide(X,X2)),
inference(symmetry,[status(thm)],[c37]) ).
cnf(c39,plain,
multiply(multiply(double_divide(X4,X3),multiply(X3,X2)),X4) = multiply(double_divide(multiply(X4,X),double_divide(X,X2)),X4),
inference(congruence,[status(thm)],[c38]) ).
cnf(c40,plain,
multiply(double_divide(multiply(X3,X),double_divide(X,X2)),X3) = X2,
inference(substitution,[status(thm)],[c21]) ).
cnf(c41,plain,
multiply(multiply(double_divide(X3,X2),multiply(X2,X)),X3) = X,
inference(transitivity,[status(thm)],[c39,c40]) ).
cnf(c42,plain,
multiply(multiply(double_divide(X,X2),multiply(X2,X)),X) = X,
inference(substitution,[status(thm)],[c41]) ).
cnf(c43,plain,
multiply(multiply(double_divide(X3,X2),multiply(X2,X3)),X) = X,
inference(transitivity,[status(thm)],[c36,c42]) ).
cnf(c44,plain,
multiply(multiply(double_divide(X2,X),multiply(X,X2)),X3) = X3,
inference(substitution,[status(thm)],[c43]) ).
cnf(c45,plain,
X3 = multiply(multiply(double_divide(X2,X),multiply(X,X2)),X3),
inference(symmetry,[status(thm)],[c44]) ).
cnf(c46,plain,
multiply(X3,X4) = multiply(multiply(multiply(double_divide(X2,X),multiply(X,X2)),X3),X4),
inference(congruence,[status(thm)],[c45]) ).
cnf(c47,plain,
multiply(X2,X) = inverse(double_divide(X,X2)),
inference(substitution,[status(thm)],[c2]) ).
cnf(c48,plain,
multiply(multiply(X3,X2),X) = multiply(inverse(double_divide(X2,X3)),X),
inference(congruence,[status(thm)],[c47]) ).
cnf(c49,plain,
multiply(double_divide(X2,X3),multiply(X3,multiply(X,X2))) = X,
inference(substitution,[status(thm)],[c14]) ).
cnf(c50,plain,
X = multiply(double_divide(X2,X3),multiply(X3,multiply(X,X2))),
inference(symmetry,[status(thm)],[c49]) ).
cnf(c51,plain,
multiply(inverse(double_divide(X2,X3)),X) = multiply(inverse(double_divide(X2,X3)),multiply(double_divide(X2,X3),multiply(X3,multiply(X,X2)))),
inference(congruence,[status(thm)],[c50]) ).
cnf(c52,plain,
multiply(double_divide(X2,X),X2) = inverse(double_divide(X2,double_divide(X2,X))),
inference(substitution,[status(thm)],[c2]) ).
cnf(c53,plain,
multiply(X,X2) = inverse(double_divide(X2,X)),
inference(substitution,[status(thm)],[c2]) ).
cnf(c54,plain,
multiply(multiply(X,X2),X3) = multiply(inverse(double_divide(X2,X)),X3),
inference(congruence,[status(thm)],[c53]) ).
cnf(c55,plain,
multiply(double_divide(X3,X2),multiply(multiply(X,X2),X3)) = multiply(double_divide(X3,X2),multiply(inverse(double_divide(X2,X)),X3)),
inference(congruence,[status(thm)],[c54]) ).
cnf(c56,plain,
multiply(double_divide(X3,multiply(X2,X)),X3) = inverse(double_divide(X3,double_divide(X3,multiply(X2,X)))),
inference(substitution,[status(thm)],[c2]) ).
cnf(c57,plain,
multiply(double_divide(X,X3),multiply(X3,multiply(X2,X))) = X2,
inference(substitution,[status(thm)],[c14]) ).
cnf(c58,plain,
X2 = multiply(double_divide(X,X3),multiply(X3,multiply(X2,X))),
inference(symmetry,[status(thm)],[c57]) ).
cnf(c59,plain,
multiply(X,X3) = multiply(X,multiply(double_divide(X2,X4),multiply(X4,multiply(X3,X2)))),
inference(congruence,[status(thm)],[c58]) ).
cnf(c60,plain,
multiply(double_divide(multiply(X4,multiply(X3,X2)),X),multiply(X,X3)) = multiply(double_divide(multiply(X4,multiply(X3,X2)),X),multiply(X,multiply(double_divide(X2,X4),multiply(X4,multiply(X3,X2))))),
inference(congruence,[status(thm)],[c59]) ).
cnf(c61,plain,
multiply(double_divide(multiply(X4,multiply(X3,X2)),X),multiply(X,multiply(double_divide(X2,X4),multiply(X4,multiply(X3,X2))))) = double_divide(X2,X4),
inference(substitution,[status(thm)],[c14]) ).
cnf(c62,plain,
multiply(double_divide(multiply(X4,multiply(X3,X2)),X),multiply(X,X3)) = double_divide(X2,X4),
inference(transitivity,[status(thm)],[c60,c61]) ).
cnf(c63,plain,
multiply(double_divide(multiply(double_divide(X4,multiply(X3,X2)),multiply(X2,X4)),X),multiply(X,X2)) = double_divide(X4,double_divide(X4,multiply(X3,X2))),
inference(substitution,[status(thm)],[c62]) ).
cnf(c64,plain,
double_divide(X4,double_divide(X4,multiply(X3,X2))) = multiply(double_divide(multiply(double_divide(X4,multiply(X3,X2)),multiply(X2,X4)),X),multiply(X,X2)),
inference(symmetry,[status(thm)],[c63]) ).
cnf(c65,plain,
double_divide(multiply(X4,X),double_divide(X,X2)) = multiply(double_divide(X4,X3),multiply(X3,X2)),
inference(substitution,[status(thm)],[c24]) ).
cnf(c66,plain,
multiply(double_divide(X4,X3),multiply(X3,X2)) = double_divide(multiply(X4,X),double_divide(X,X2)),
inference(symmetry,[status(thm)],[c65]) ).
cnf(c67,plain,
inverse(multiply(double_divide(X4,X3),multiply(X3,X2))) = inverse(double_divide(multiply(X4,X),double_divide(X,X2))),
inference(congruence,[status(thm)],[c66]) ).
cnf(c68,plain,
multiply(double_divide(X,X2),multiply(X3,X)) = inverse(double_divide(multiply(X3,X),double_divide(X,X2))),
inference(substitution,[status(thm)],[c2]) ).
cnf(c69,plain,
inverse(double_divide(multiply(X3,X),double_divide(X,X2))) = multiply(double_divide(X,X2),multiply(X3,X)),
inference(symmetry,[status(thm)],[c68]) ).
cnf(c70,plain,
inverse(multiply(double_divide(X4,X3),multiply(X3,X2))) = multiply(double_divide(X,X2),multiply(X4,X)),
inference(transitivity,[status(thm)],[c67,c69]) ).
cnf(c71,plain,
inverse(multiply(double_divide(X2,X),multiply(X,multiply(X3,X2)))) = multiply(double_divide(X4,multiply(X3,X2)),multiply(X2,X4)),
inference(substitution,[status(thm)],[c70]) ).
cnf(c72,plain,
multiply(double_divide(X4,multiply(X3,X2)),multiply(X2,X4)) = inverse(multiply(double_divide(X2,X),multiply(X,multiply(X3,X2)))),
inference(symmetry,[status(thm)],[c71]) ).
cnf(c73,plain,
multiply(double_divide(X2,X),multiply(X,multiply(X3,X2))) = X3,
inference(substitution,[status(thm)],[c14]) ).
cnf(c74,plain,
inverse(multiply(double_divide(X2,X),multiply(X,multiply(X3,X2)))) = inverse(X3),
inference(congruence,[status(thm)],[c73]) ).
cnf(c75,plain,
multiply(double_divide(X3,multiply(X2,X)),multiply(X,X3)) = inverse(X2),
inference(transitivity,[status(thm)],[c72,c74]) ).
cnf(c76,plain,
double_divide(multiply(double_divide(X4,multiply(X3,X2)),multiply(X2,X4)),X) = double_divide(inverse(X3),X),
inference(congruence,[status(thm)],[c75]) ).
cnf(c77,plain,
multiply(double_divide(multiply(double_divide(X4,multiply(X3,X2)),multiply(X2,X4)),X),multiply(X,X2)) = multiply(double_divide(inverse(X3),X),multiply(X,X2)),
inference(congruence,[status(thm)],[c76]) ).
cnf(c78,plain,
double_divide(X4,double_divide(X4,multiply(X3,X2))) = multiply(double_divide(inverse(X3),X),multiply(X,X2)),
inference(transitivity,[status(thm)],[c64,c77]) ).
cnf(c79,plain,
inverse(double_divide(X4,double_divide(X4,multiply(X3,X2)))) = inverse(multiply(double_divide(inverse(X3),X),multiply(X,X2))),
inference(congruence,[status(thm)],[c78]) ).
cnf(c80,plain,
inverse(multiply(double_divide(inverse(X4),X),multiply(X,X3))) = multiply(double_divide(X2,X3),multiply(inverse(X4),X2)),
inference(substitution,[status(thm)],[c70]) ).
cnf(c81,plain,
inverse(double_divide(X4,double_divide(X4,multiply(X3,X2)))) = multiply(double_divide(X,X2),multiply(inverse(X3),X)),
inference(transitivity,[status(thm)],[c79,c80]) ).
cnf(c82,plain,
multiply(double_divide(X4,multiply(X3,X2)),X4) = multiply(double_divide(X,X2),multiply(inverse(X3),X)),
inference(transitivity,[status(thm)],[c56,c81]) ).
cnf(c83,plain,
multiply(double_divide(X,multiply(double_divide(X3,X2),X3)),X) = multiply(double_divide(X4,X3),multiply(inverse(double_divide(X3,X2)),X4)),
inference(substitution,[status(thm)],[c82]) ).
cnf(c84,plain,
multiply(double_divide(X4,X3),multiply(inverse(double_divide(X3,X2)),X4)) = multiply(double_divide(X,multiply(double_divide(X3,X2),X3)),X),
inference(symmetry,[status(thm)],[c83]) ).
cnf(c85,plain,
multiply(multiply(double_divide(X2,X),multiply(X,X2)),X3) = X3,
inference(substitution,[status(thm)],[c43]) ).
cnf(c86,plain,
X3 = multiply(multiply(double_divide(X2,X),multiply(X,X2)),X3),
inference(symmetry,[status(thm)],[c85]) ).
cnf(c87,plain,
multiply(double_divide(X3,X4),X3) = multiply(double_divide(X3,X4),multiply(multiply(double_divide(X2,X),multiply(X,X2)),X3)),
inference(congruence,[status(thm)],[c86]) ).
cnf(c88,plain,
multiply(double_divide(X3,X4),multiply(multiply(double_divide(X2,X),multiply(X,X2)),X3)) = multiply(double_divide(X5,X4),multiply(multiply(double_divide(X2,X),multiply(X,X2)),X5)),
inference(substitution,[status(thm)],[c34]) ).
cnf(c89,plain,
multiply(multiply(double_divide(X2,X),multiply(X,X2)),X3) = X3,
inference(substitution,[status(thm)],[c43]) ).
cnf(c90,plain,
multiply(double_divide(X4,X3),multiply(multiply(double_divide(X2,X),multiply(X,X2)),X4)) = multiply(double_divide(X4,X3),X4),
inference(congruence,[status(thm)],[c89]) ).
cnf(c91,plain,
multiply(double_divide(X3,X4),multiply(multiply(double_divide(X2,X),multiply(X,X2)),X3)) = multiply(double_divide(X5,X4),X5),
inference(transitivity,[status(thm)],[c88,c90]) ).
cnf(c92,plain,
multiply(double_divide(X,X2),X) = multiply(double_divide(X3,X2),X3),
inference(transitivity,[status(thm)],[c87,c91]) ).
cnf(c93,plain,
multiply(double_divide(X3,X2),X3) = multiply(double_divide(multiply(X2,X),X2),multiply(X2,X)),
inference(substitution,[status(thm)],[c92]) ).
cnf(c94,plain,
multiply(multiply(double_divide(X3,X2),X3),multiply(X2,X)) = multiply(multiply(double_divide(multiply(X2,X),X2),multiply(X2,X)),multiply(X2,X)),
inference(congruence,[status(thm)],[c93]) ).
cnf(c95,plain,
multiply(multiply(double_divide(multiply(X2,X),X2),multiply(X2,X)),multiply(X2,X)) = X,
inference(substitution,[status(thm)],[c41]) ).
cnf(c96,plain,
multiply(multiply(double_divide(X3,X2),X3),multiply(X2,X)) = X,
inference(transitivity,[status(thm)],[c94,c95]) ).
cnf(c97,plain,
X = multiply(multiply(double_divide(X3,X2),X3),multiply(X2,X)),
inference(symmetry,[status(thm)],[c96]) ).
cnf(c98,plain,
multiply(double_divide(X,multiply(double_divide(X3,X2),X3)),X) = multiply(double_divide(X,multiply(double_divide(X3,X2),X3)),multiply(multiply(double_divide(X3,X2),X3),multiply(X2,X))),
inference(congruence,[status(thm)],[c97]) ).
cnf(c99,plain,
multiply(double_divide(X,multiply(double_divide(X3,X2),X3)),multiply(multiply(double_divide(X3,X2),X3),multiply(X2,X))) = X2,
inference(substitution,[status(thm)],[c14]) ).
cnf(c100,plain,
multiply(double_divide(X,multiply(double_divide(X3,X2),X3)),X) = X2,
inference(transitivity,[status(thm)],[c98,c99]) ).
cnf(c101,plain,
multiply(double_divide(X3,X2),multiply(inverse(double_divide(X2,X)),X3)) = X,
inference(transitivity,[status(thm)],[c84,c100]) ).
cnf(c102,plain,
multiply(double_divide(X3,X2),multiply(multiply(X,X2),X3)) = X,
inference(transitivity,[status(thm)],[c55,c101]) ).
cnf(c103,plain,
multiply(double_divide(X,X2),multiply(multiply(X3,X2),X)) = X3,
inference(substitution,[status(thm)],[c102]) ).
cnf(c104,plain,
X3 = multiply(double_divide(X,X2),multiply(multiply(X3,X2),X)),
inference(symmetry,[status(thm)],[c103]) ).
cnf(c105,plain,
double_divide(X4,X3) = double_divide(multiply(double_divide(X,X2),multiply(multiply(X4,X2),X)),X3),
inference(congruence,[status(thm)],[c104]) ).
cnf(c106,plain,
multiply(double_divide(X4,X3),multiply(X3,multiply(X4,X2))) = multiply(double_divide(multiply(double_divide(X,X2),multiply(multiply(X4,X2),X)),X3),multiply(X3,multiply(X4,X2))),
inference(congruence,[status(thm)],[c105]) ).
cnf(c107,plain,
multiply(double_divide(multiply(double_divide(X,X2),multiply(multiply(X4,X2),X)),X3),multiply(X3,multiply(X4,X2))) = double_divide(X,double_divide(X,X2)),
inference(substitution,[status(thm)],[c62]) ).
cnf(c108,plain,
multiply(double_divide(X4,X3),multiply(X3,multiply(X4,X2))) = double_divide(X,double_divide(X,X2)),
inference(transitivity,[status(thm)],[c106,c107]) ).
cnf(c109,plain,
multiply(double_divide(X2,X),multiply(X,multiply(X2,X2))) = double_divide(X3,double_divide(X3,X2)),
inference(substitution,[status(thm)],[c108]) ).
cnf(c110,plain,
double_divide(X3,double_divide(X3,X2)) = multiply(double_divide(X2,X),multiply(X,multiply(X2,X2))),
inference(symmetry,[status(thm)],[c109]) ).
cnf(c111,plain,
multiply(double_divide(X2,X),multiply(X,multiply(X2,X2))) = X2,
inference(substitution,[status(thm)],[c14]) ).
cnf(c112,plain,
double_divide(X2,double_divide(X2,X)) = X,
inference(transitivity,[status(thm)],[c110,c111]) ).
cnf(c113,plain,
inverse(double_divide(X2,double_divide(X2,X))) = inverse(X),
inference(congruence,[status(thm)],[c112]) ).
cnf(c114,plain,
multiply(double_divide(X2,X),X2) = inverse(X),
inference(transitivity,[status(thm)],[c52,c113]) ).
cnf(c115,plain,
multiply(double_divide(X,X2),X) = inverse(X2),
inference(substitution,[status(thm)],[c114]) ).
cnf(c116,plain,
inverse(X2) = multiply(double_divide(X,X2),X),
inference(symmetry,[status(thm)],[c115]) ).
cnf(c117,plain,
multiply(inverse(X3),multiply(X3,X2)) = multiply(multiply(double_divide(X,X3),X),multiply(X3,X2)),
inference(congruence,[status(thm)],[c116]) ).
cnf(c118,plain,
multiply(multiply(double_divide(X,X3),X),multiply(X3,X2)) = X2,
inference(substitution,[status(thm)],[c96]) ).
cnf(c119,plain,
multiply(inverse(X2),multiply(X2,X)) = X,
inference(transitivity,[status(thm)],[c117,c118]) ).
cnf(c120,plain,
multiply(inverse(double_divide(X2,X3)),multiply(double_divide(X2,X3),multiply(X3,multiply(X,X2)))) = multiply(X3,multiply(X,X2)),
inference(substitution,[status(thm)],[c119]) ).
cnf(c121,plain,
multiply(inverse(double_divide(X2,X3)),X) = multiply(X3,multiply(X,X2)),
inference(transitivity,[status(thm)],[c51,c120]) ).
cnf(c122,plain,
multiply(multiply(X3,X2),X) = multiply(X3,multiply(X,X2)),
inference(transitivity,[status(thm)],[c48,c121]) ).
cnf(c123,plain,
multiply(multiply(multiply(double_divide(X2,X),multiply(X,X2)),X3),X4) = multiply(multiply(double_divide(X2,X),multiply(X,X2)),multiply(X4,X3)),
inference(substitution,[status(thm)],[c122]) ).
cnf(c124,plain,
multiply(multiply(double_divide(X2,X),multiply(X,X2)),multiply(X4,X3)) = multiply(X4,X3),
inference(substitution,[status(thm)],[c43]) ).
cnf(c125,plain,
multiply(multiply(multiply(double_divide(X2,X),multiply(X,X2)),X3),X4) = multiply(X4,X3),
inference(transitivity,[status(thm)],[c123,c124]) ).
cnf(c126,plain,
multiply(X,X2) = multiply(X2,X),
inference(transitivity,[status(thm)],[c46,c125]) ).
cnf(c127,plain,
multiply(a,b) = multiply(b,a),
inference(substitution,[status(thm)],[c126]) ).
cnf(c128,plain,
$false,
inference(resolution,[status(thm)],[c1,c127]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : GRP612-1 : TPTP v9.3.1. Bugfixed v2.7.0.
% 0.00/0.04 % Command : run_twee /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.07/0.35 % Computer : n001.cluster.edu
% 0.07/0.35 % Model : x86_64 x86_64
% 0.07/0.35 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.07/0.35 % Memory : 8046.5625MB
% 0.07/0.35 % OS : Linux 6.8.0-71-generic
% 0.07/0.35 % CPULimit : 300
% 0.07/0.35 % WCLimit : 300
% 0.07/0.35 % DateTime : Sun Sep 27 10:15:30 UTC 2026
% 0.07/0.36 % CPUTime :
% 0.07/0.36 Running run_twee /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.12/0.48 Command-line arguments: --no-flatten-goal
% 0.12/0.48
% 0.12/0.48 % SZS status Unsatisfiable
% 0.12/0.48
% 0.55/0.50 % SZS output start CNFRefutation
% See solution above
% 0.55/0.56
% 0.55/0.56 RESULT: Unsatisfiable (the axioms are contradictory).
%------------------------------------------------------------------------------