%------------------------------------------------------------------------------
% File : Twee---2.7
% Problem : GRP568-1 : TPTP v9.3.1. Bugfixed v2.7.0.
% Transfm : none
% Format : tptp:raw
% Command : run_twee /export/starexec/sandbox/benchmark/theBenchmark.p
% Computer : n010.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 10:11:15 AM UTC 2026
% Result : Unsatisfiable 0.19s 0.46s
% Output : CNFRefutation 0.19s
% Verified :
% SZS Type : Refutation
% Derivation depth : 62
% Number of leaves : 5
% Syntax : Number of clauses : 258 ( 258 unt; 0 nHn; 36 RR)
% Number of literals : 258 ( 257 equ; 1 neg)
% Maximal clause size : 1 ( 1 avg)
% Maximal term depth : 8 ( 2 avg)
% Number of predicates : 2 ( 0 usr; 1 prp; 0-2 aty)
% Number of functors : 6 ( 6 usr; 3 con; 0-2 aty)
% Number of variables : 370 ( 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,
inverse(A) = double_divide(A,identity),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',inverse) ).
cnf(c3,plain,
inverse(double_divide(X2,X)) = double_divide(double_divide(X2,X),identity),
inference(substitution,[status(thm)],[c2]) ).
cnf(c4,axiom,
multiply(A2,B) = double_divide(double_divide(B,A2),identity),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',multiply) ).
cnf(c5,plain,
multiply(X,X2) = double_divide(double_divide(X2,X),identity),
inference(substitution,[status(thm)],[c4]) ).
cnf(c6,plain,
double_divide(double_divide(X2,X),identity) = multiply(X,X2),
inference(symmetry,[status(thm)],[c5]) ).
cnf(c7,plain,
inverse(double_divide(X2,X)) = multiply(X,X2),
inference(transitivity,[status(thm)],[c3,c6]) ).
cnf(c8,plain,
multiply(X,X2) = inverse(double_divide(X2,X)),
inference(symmetry,[status(thm)],[c7]) ).
cnf(c9,plain,
inverse(inverse(X)) = double_divide(inverse(X),identity),
inference(substitution,[status(thm)],[c2]) ).
cnf(c10,plain,
inverse(X) = double_divide(X,identity),
inference(substitution,[status(thm)],[c2]) ).
cnf(c11,plain,
double_divide(inverse(X),inverse(identity)) = double_divide(double_divide(X,identity),inverse(identity)),
inference(congruence,[status(thm)],[c10]) ).
cnf(c12,axiom,
identity = double_divide(A2,inverse(A2)),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',identity) ).
cnf(c13,plain,
identity = double_divide(identity,inverse(identity)),
inference(substitution,[status(thm)],[c12]) ).
cnf(c14,plain,
double_divide(X,identity) = double_divide(X,double_divide(identity,inverse(identity))),
inference(congruence,[status(thm)],[c13]) ).
cnf(c15,plain,
double_divide(double_divide(X,identity),inverse(identity)) = double_divide(double_divide(X,double_divide(identity,inverse(identity))),inverse(identity)),
inference(congruence,[status(thm)],[c14]) ).
cnf(c16,plain,
identity = double_divide(X,inverse(X)),
inference(substitution,[status(thm)],[c12]) ).
cnf(c17,plain,
double_divide(identity,inverse(identity)) = double_divide(double_divide(X,inverse(X)),inverse(identity)),
inference(congruence,[status(thm)],[c16]) ).
cnf(c18,plain,
double_divide(X,double_divide(identity,inverse(identity))) = double_divide(X,double_divide(double_divide(X,inverse(X)),inverse(identity))),
inference(congruence,[status(thm)],[c17]) ).
cnf(c19,plain,
double_divide(double_divide(X,double_divide(identity,inverse(identity))),inverse(identity)) = double_divide(double_divide(X,double_divide(double_divide(X,inverse(X)),inverse(identity))),inverse(identity)),
inference(congruence,[status(thm)],[c18]) ).
cnf(c20,plain,
inverse(identity) = double_divide(identity,identity),
inference(substitution,[status(thm)],[c2]) ).
cnf(c21,plain,
double_divide(double_divide(X,inverse(X2)),inverse(identity)) = double_divide(double_divide(X,inverse(X2)),double_divide(identity,identity)),
inference(congruence,[status(thm)],[c20]) ).
cnf(c22,plain,
double_divide(X2,double_divide(double_divide(X,inverse(X2)),inverse(identity))) = double_divide(X2,double_divide(double_divide(X,inverse(X2)),double_divide(identity,identity))),
inference(congruence,[status(thm)],[c21]) ).
cnf(c23,plain,
double_divide(double_divide(X2,double_divide(double_divide(X,inverse(X2)),inverse(identity))),inverse(identity)) = double_divide(double_divide(X2,double_divide(double_divide(X,inverse(X2)),double_divide(identity,identity))),inverse(identity)),
inference(congruence,[status(thm)],[c22]) ).
cnf(c24,plain,
inverse(X) = double_divide(X,identity),
inference(substitution,[status(thm)],[c2]) ).
cnf(c25,plain,
double_divide(X,inverse(X2)) = double_divide(X,double_divide(X2,identity)),
inference(congruence,[status(thm)],[c24]) ).
cnf(c26,plain,
double_divide(double_divide(X,inverse(X2)),double_divide(identity,identity)) = double_divide(double_divide(X,double_divide(X2,identity)),double_divide(identity,identity)),
inference(congruence,[status(thm)],[c25]) ).
cnf(c27,plain,
double_divide(X2,double_divide(double_divide(X,inverse(X2)),double_divide(identity,identity))) = double_divide(X2,double_divide(double_divide(X,double_divide(X2,identity)),double_divide(identity,identity))),
inference(congruence,[status(thm)],[c26]) ).
cnf(c28,plain,
double_divide(double_divide(X2,double_divide(double_divide(X,inverse(X2)),double_divide(identity,identity))),inverse(identity)) = double_divide(double_divide(X2,double_divide(double_divide(X,double_divide(X2,identity)),double_divide(identity,identity))),inverse(identity)),
inference(congruence,[status(thm)],[c27]) ).
cnf(c29,plain,
inverse(identity) = double_divide(identity,identity),
inference(substitution,[status(thm)],[c2]) ).
cnf(c30,plain,
double_divide(double_divide(X2,double_divide(double_divide(X,double_divide(X2,X3)),double_divide(identity,X3))),inverse(identity)) = double_divide(double_divide(X2,double_divide(double_divide(X,double_divide(X2,X3)),double_divide(identity,X3))),double_divide(identity,identity)),
inference(congruence,[status(thm)],[c29]) ).
cnf(c31,axiom,
double_divide(double_divide(A2,double_divide(double_divide(B2,double_divide(A2,C)),double_divide(identity,C))),double_divide(identity,identity)) = B2,
file('/export/starexec/sandbox/benchmark/theBenchmark.p',single_axiom) ).
cnf(c32,plain,
double_divide(double_divide(X3,double_divide(double_divide(X2,double_divide(X3,X)),double_divide(identity,X))),double_divide(identity,identity)) = X2,
inference(substitution,[status(thm)],[c31]) ).
cnf(c33,plain,
double_divide(double_divide(X3,double_divide(double_divide(X2,double_divide(X3,X)),double_divide(identity,X))),inverse(identity)) = X2,
inference(transitivity,[status(thm)],[c30,c32]) ).
cnf(c34,plain,
double_divide(double_divide(X2,double_divide(double_divide(X,double_divide(X2,identity)),double_divide(identity,identity))),inverse(identity)) = X,
inference(substitution,[status(thm)],[c33]) ).
cnf(c35,plain,
double_divide(double_divide(X2,double_divide(double_divide(X,inverse(X2)),double_divide(identity,identity))),inverse(identity)) = X,
inference(transitivity,[status(thm)],[c28,c34]) ).
cnf(c36,plain,
double_divide(double_divide(X2,double_divide(double_divide(X,inverse(X2)),inverse(identity))),inverse(identity)) = X,
inference(transitivity,[status(thm)],[c23,c35]) ).
cnf(c37,plain,
double_divide(double_divide(X,double_divide(double_divide(X,inverse(X)),inverse(identity))),inverse(identity)) = X,
inference(substitution,[status(thm)],[c36]) ).
cnf(c38,plain,
double_divide(double_divide(X,double_divide(identity,inverse(identity))),inverse(identity)) = X,
inference(transitivity,[status(thm)],[c19,c37]) ).
cnf(c39,plain,
double_divide(double_divide(X,identity),inverse(identity)) = X,
inference(transitivity,[status(thm)],[c15,c38]) ).
cnf(c40,plain,
double_divide(inverse(X),inverse(identity)) = X,
inference(transitivity,[status(thm)],[c11,c39]) ).
cnf(c41,plain,
double_divide(inverse(inverse(identity)),inverse(identity)) = inverse(identity),
inference(substitution,[status(thm)],[c40]) ).
cnf(c42,plain,
inverse(identity) = double_divide(inverse(inverse(identity)),inverse(identity)),
inference(symmetry,[status(thm)],[c41]) ).
cnf(c43,plain,
inverse(inverse(identity)) = double_divide(inverse(identity),identity),
inference(substitution,[status(thm)],[c2]) ).
cnf(c44,plain,
double_divide(inverse(inverse(identity)),inverse(identity)) = double_divide(double_divide(inverse(identity),identity),inverse(identity)),
inference(congruence,[status(thm)],[c43]) ).
cnf(c45,plain,
inverse(double_divide(X,identity)) = multiply(identity,X),
inference(substitution,[status(thm)],[c7]) ).
cnf(c46,plain,
multiply(identity,X) = inverse(double_divide(X,identity)),
inference(symmetry,[status(thm)],[c45]) ).
cnf(c47,plain,
inverse(X) = double_divide(X,identity),
inference(substitution,[status(thm)],[c2]) ).
cnf(c48,plain,
double_divide(X,identity) = inverse(X),
inference(symmetry,[status(thm)],[c47]) ).
cnf(c49,plain,
inverse(double_divide(X,identity)) = inverse(inverse(X)),
inference(congruence,[status(thm)],[c48]) ).
cnf(c50,plain,
multiply(identity,X) = inverse(inverse(X)),
inference(transitivity,[status(thm)],[c46,c49]) ).
cnf(c51,plain,
inverse(inverse(X)) = multiply(identity,X),
inference(symmetry,[status(thm)],[c50]) ).
cnf(c52,plain,
double_divide(identity,inverse(inverse(X))) = double_divide(identity,multiply(identity,X)),
inference(congruence,[status(thm)],[c51]) ).
cnf(c53,plain,
double_divide(double_divide(identity,inverse(inverse(X))),inverse(identity)) = double_divide(double_divide(identity,multiply(identity,X)),inverse(identity)),
inference(congruence,[status(thm)],[c52]) ).
cnf(c54,plain,
identity = double_divide(identity,inverse(identity)),
inference(substitution,[status(thm)],[c12]) ).
cnf(c55,plain,
multiply(identity,X) = multiply(double_divide(identity,inverse(identity)),X),
inference(congruence,[status(thm)],[c54]) ).
cnf(c56,plain,
double_divide(identity,multiply(identity,X)) = double_divide(identity,multiply(double_divide(identity,inverse(identity)),X)),
inference(congruence,[status(thm)],[c55]) ).
cnf(c57,plain,
double_divide(double_divide(identity,multiply(identity,X)),inverse(identity)) = double_divide(double_divide(identity,multiply(double_divide(identity,inverse(identity)),X)),inverse(identity)),
inference(congruence,[status(thm)],[c56]) ).
cnf(c58,plain,
inverse(double_divide(X,double_divide(X2,inverse(identity)))) = multiply(double_divide(X2,inverse(identity)),X),
inference(substitution,[status(thm)],[c7]) ).
cnf(c59,plain,
multiply(double_divide(X2,inverse(identity)),X) = inverse(double_divide(X,double_divide(X2,inverse(identity)))),
inference(symmetry,[status(thm)],[c58]) ).
cnf(c60,plain,
double_divide(X2,multiply(double_divide(X2,inverse(identity)),X)) = double_divide(X2,inverse(double_divide(X,double_divide(X2,inverse(identity))))),
inference(congruence,[status(thm)],[c59]) ).
cnf(c61,plain,
double_divide(double_divide(X2,multiply(double_divide(X2,inverse(identity)),X)),inverse(identity)) = double_divide(double_divide(X2,inverse(double_divide(X,double_divide(X2,inverse(identity))))),inverse(identity)),
inference(congruence,[status(thm)],[c60]) ).
cnf(c62,plain,
inverse(double_divide(X,double_divide(X2,inverse(identity)))) = double_divide(double_divide(X,double_divide(X2,inverse(identity))),identity),
inference(substitution,[status(thm)],[c2]) ).
cnf(c63,plain,
double_divide(X2,inverse(double_divide(X,double_divide(X2,inverse(identity))))) = double_divide(X2,double_divide(double_divide(X,double_divide(X2,inverse(identity))),identity)),
inference(congruence,[status(thm)],[c62]) ).
cnf(c64,plain,
double_divide(double_divide(X2,inverse(double_divide(X,double_divide(X2,inverse(identity))))),inverse(identity)) = double_divide(double_divide(X2,double_divide(double_divide(X,double_divide(X2,inverse(identity))),identity)),inverse(identity)),
inference(congruence,[status(thm)],[c63]) ).
cnf(c65,plain,
identity = double_divide(identity,inverse(identity)),
inference(substitution,[status(thm)],[c12]) ).
cnf(c66,plain,
double_divide(double_divide(X,double_divide(X2,inverse(identity))),identity) = double_divide(double_divide(X,double_divide(X2,inverse(identity))),double_divide(identity,inverse(identity))),
inference(congruence,[status(thm)],[c65]) ).
cnf(c67,plain,
double_divide(X2,double_divide(double_divide(X,double_divide(X2,inverse(identity))),identity)) = double_divide(X2,double_divide(double_divide(X,double_divide(X2,inverse(identity))),double_divide(identity,inverse(identity)))),
inference(congruence,[status(thm)],[c66]) ).
cnf(c68,plain,
double_divide(double_divide(X2,double_divide(double_divide(X,double_divide(X2,inverse(identity))),identity)),inverse(identity)) = double_divide(double_divide(X2,double_divide(double_divide(X,double_divide(X2,inverse(identity))),double_divide(identity,inverse(identity)))),inverse(identity)),
inference(congruence,[status(thm)],[c67]) ).
cnf(c69,plain,
double_divide(double_divide(X2,double_divide(double_divide(X,double_divide(X2,inverse(identity))),double_divide(identity,inverse(identity)))),inverse(identity)) = X,
inference(substitution,[status(thm)],[c33]) ).
cnf(c70,plain,
double_divide(double_divide(X2,double_divide(double_divide(X,double_divide(X2,inverse(identity))),identity)),inverse(identity)) = X,
inference(transitivity,[status(thm)],[c68,c69]) ).
cnf(c71,plain,
double_divide(double_divide(X2,inverse(double_divide(X,double_divide(X2,inverse(identity))))),inverse(identity)) = X,
inference(transitivity,[status(thm)],[c64,c70]) ).
cnf(c72,plain,
double_divide(double_divide(X2,multiply(double_divide(X2,inverse(identity)),X)),inverse(identity)) = X,
inference(transitivity,[status(thm)],[c61,c71]) ).
cnf(c73,plain,
double_divide(double_divide(identity,multiply(double_divide(identity,inverse(identity)),X)),inverse(identity)) = X,
inference(substitution,[status(thm)],[c72]) ).
cnf(c74,plain,
double_divide(double_divide(identity,multiply(identity,X)),inverse(identity)) = X,
inference(transitivity,[status(thm)],[c57,c73]) ).
cnf(c75,plain,
double_divide(double_divide(identity,inverse(inverse(X))),inverse(identity)) = X,
inference(transitivity,[status(thm)],[c53,c74]) ).
cnf(c76,plain,
X = double_divide(double_divide(identity,inverse(inverse(X))),inverse(identity)),
inference(symmetry,[status(thm)],[c75]) ).
cnf(c77,plain,
double_divide(inverse(X),X) = double_divide(inverse(X),double_divide(double_divide(identity,inverse(inverse(X))),inverse(identity))),
inference(congruence,[status(thm)],[c76]) ).
cnf(c78,plain,
double_divide(double_divide(inverse(X),X),inverse(identity)) = double_divide(double_divide(inverse(X),double_divide(double_divide(identity,inverse(inverse(X))),inverse(identity))),inverse(identity)),
inference(congruence,[status(thm)],[c77]) ).
cnf(c79,plain,
double_divide(double_divide(inverse(X),double_divide(double_divide(identity,inverse(inverse(X))),inverse(identity))),inverse(identity)) = identity,
inference(substitution,[status(thm)],[c36]) ).
cnf(c80,plain,
double_divide(double_divide(inverse(X),X),inverse(identity)) = identity,
inference(transitivity,[status(thm)],[c78,c79]) ).
cnf(c81,plain,
double_divide(double_divide(inverse(identity),identity),inverse(identity)) = identity,
inference(substitution,[status(thm)],[c80]) ).
cnf(c82,plain,
double_divide(inverse(inverse(identity)),inverse(identity)) = identity,
inference(transitivity,[status(thm)],[c44,c81]) ).
cnf(c83,plain,
inverse(identity) = identity,
inference(transitivity,[status(thm)],[c42,c82]) ).
cnf(c84,plain,
identity = inverse(identity),
inference(symmetry,[status(thm)],[c83]) ).
cnf(c85,plain,
double_divide(inverse(X),identity) = double_divide(inverse(X),inverse(identity)),
inference(congruence,[status(thm)],[c84]) ).
cnf(c86,plain,
double_divide(inverse(X),identity) = X,
inference(transitivity,[status(thm)],[c85,c40]) ).
cnf(c87,plain,
inverse(inverse(X)) = X,
inference(transitivity,[status(thm)],[c9,c86]) ).
cnf(c88,plain,
inverse(inverse(inverse(double_divide(X2,X)))) = inverse(double_divide(X2,X)),
inference(substitution,[status(thm)],[c87]) ).
cnf(c89,plain,
inverse(double_divide(X2,X)) = inverse(inverse(inverse(double_divide(X2,X)))),
inference(symmetry,[status(thm)],[c88]) ).
cnf(c90,plain,
multiply(identity,inverse(double_divide(X2,X))) = inverse(inverse(inverse(double_divide(X2,X)))),
inference(substitution,[status(thm)],[c50]) ).
cnf(c91,plain,
inverse(inverse(inverse(double_divide(X2,X)))) = multiply(identity,inverse(double_divide(X2,X))),
inference(symmetry,[status(thm)],[c90]) ).
cnf(c92,plain,
inverse(inverse(double_divide(X2,inverse(X)))) = double_divide(X2,inverse(X)),
inference(substitution,[status(thm)],[c87]) ).
cnf(c93,plain,
double_divide(X2,inverse(X)) = inverse(inverse(double_divide(X2,inverse(X)))),
inference(symmetry,[status(thm)],[c92]) ).
cnf(c94,plain,
multiply(identity,double_divide(X2,inverse(X))) = inverse(inverse(double_divide(X2,inverse(X)))),
inference(substitution,[status(thm)],[c50]) ).
cnf(c95,plain,
inverse(inverse(double_divide(X2,inverse(X)))) = multiply(identity,double_divide(X2,inverse(X))),
inference(symmetry,[status(thm)],[c94]) ).
cnf(c96,plain,
identity = inverse(identity),
inference(symmetry,[status(thm)],[c83]) ).
cnf(c97,plain,
multiply(identity,double_divide(X2,inverse(X))) = multiply(inverse(identity),double_divide(X2,inverse(X))),
inference(congruence,[status(thm)],[c96]) ).
cnf(c98,plain,
inverse(multiply(X2,X)) = double_divide(multiply(X2,X),identity),
inference(substitution,[status(thm)],[c2]) ).
cnf(c99,plain,
identity = inverse(identity),
inference(symmetry,[status(thm)],[c83]) ).
cnf(c100,plain,
double_divide(multiply(X2,X),identity) = double_divide(multiply(X2,X),inverse(identity)),
inference(congruence,[status(thm)],[c99]) ).
cnf(c101,plain,
inverse(double_divide(X,X2)) = multiply(X2,X),
inference(substitution,[status(thm)],[c7]) ).
cnf(c102,plain,
multiply(X2,X) = inverse(double_divide(X,X2)),
inference(symmetry,[status(thm)],[c101]) ).
cnf(c103,plain,
double_divide(multiply(X2,X),inverse(identity)) = double_divide(inverse(double_divide(X,X2)),inverse(identity)),
inference(congruence,[status(thm)],[c102]) ).
cnf(c104,plain,
double_divide(inverse(double_divide(X,X2)),inverse(identity)) = double_divide(X,X2),
inference(substitution,[status(thm)],[c40]) ).
cnf(c105,plain,
double_divide(multiply(X2,X),inverse(identity)) = double_divide(X,X2),
inference(transitivity,[status(thm)],[c103,c104]) ).
cnf(c106,plain,
double_divide(multiply(X2,X),identity) = double_divide(X,X2),
inference(transitivity,[status(thm)],[c100,c105]) ).
cnf(c107,plain,
inverse(multiply(X2,X)) = double_divide(X,X2),
inference(transitivity,[status(thm)],[c98,c106]) ).
cnf(c108,plain,
inverse(multiply(X,X2)) = double_divide(X2,X),
inference(substitution,[status(thm)],[c107]) ).
cnf(c109,plain,
double_divide(X2,X) = inverse(multiply(X,X2)),
inference(symmetry,[status(thm)],[c108]) ).
cnf(c110,plain,
multiply(X2,double_divide(X2,X)) = multiply(X2,inverse(multiply(X,X2))),
inference(congruence,[status(thm)],[c109]) ).
cnf(c111,plain,
inverse(double_divide(X,X2)) = multiply(X2,X),
inference(substitution,[status(thm)],[c7]) ).
cnf(c112,plain,
multiply(X2,X) = inverse(double_divide(X,X2)),
inference(symmetry,[status(thm)],[c111]) ).
cnf(c113,plain,
multiply(multiply(X2,X),inverse(X2)) = multiply(inverse(double_divide(X,X2)),inverse(X2)),
inference(congruence,[status(thm)],[c112]) ).
cnf(c114,plain,
inverse(double_divide(X,X2)) = double_divide(double_divide(X,X2),identity),
inference(substitution,[status(thm)],[c2]) ).
cnf(c115,plain,
multiply(inverse(double_divide(X,X2)),inverse(X2)) = multiply(double_divide(double_divide(X,X2),identity),inverse(X2)),
inference(congruence,[status(thm)],[c114]) ).
cnf(c116,plain,
inverse(double_divide(inverse(X2),double_divide(double_divide(X,X2),identity))) = multiply(double_divide(double_divide(X,X2),identity),inverse(X2)),
inference(substitution,[status(thm)],[c7]) ).
cnf(c117,plain,
multiply(double_divide(double_divide(X,X2),identity),inverse(X2)) = inverse(double_divide(inverse(X2),double_divide(double_divide(X,X2),identity))),
inference(symmetry,[status(thm)],[c116]) ).
cnf(c118,plain,
inverse(double_divide(inverse(X2),double_divide(double_divide(X,X2),identity))) = double_divide(double_divide(inverse(X2),double_divide(double_divide(X,X2),identity)),identity),
inference(substitution,[status(thm)],[c2]) ).
cnf(c119,plain,
identity = inverse(identity),
inference(symmetry,[status(thm)],[c83]) ).
cnf(c120,plain,
double_divide(double_divide(X,X2),identity) = double_divide(double_divide(X,X2),inverse(identity)),
inference(congruence,[status(thm)],[c119]) ).
cnf(c121,plain,
double_divide(inverse(X2),double_divide(double_divide(X,X2),identity)) = double_divide(inverse(X2),double_divide(double_divide(X,X2),inverse(identity))),
inference(congruence,[status(thm)],[c120]) ).
cnf(c122,plain,
double_divide(double_divide(inverse(X2),double_divide(double_divide(X,X2),identity)),identity) = double_divide(double_divide(inverse(X2),double_divide(double_divide(X,X2),inverse(identity))),identity),
inference(congruence,[status(thm)],[c121]) ).
cnf(c123,plain,
identity = inverse(identity),
inference(symmetry,[status(thm)],[c83]) ).
cnf(c124,plain,
double_divide(double_divide(inverse(X2),double_divide(double_divide(X,X2),inverse(identity))),identity) = double_divide(double_divide(inverse(X2),double_divide(double_divide(X,X2),inverse(identity))),inverse(identity)),
inference(congruence,[status(thm)],[c123]) ).
cnf(c125,plain,
X = inverse(inverse(X)),
inference(symmetry,[status(thm)],[c87]) ).
cnf(c126,plain,
double_divide(X,X2) = double_divide(X,inverse(inverse(X2))),
inference(congruence,[status(thm)],[c125]) ).
cnf(c127,plain,
double_divide(double_divide(X,X2),inverse(identity)) = double_divide(double_divide(X,inverse(inverse(X2))),inverse(identity)),
inference(congruence,[status(thm)],[c126]) ).
cnf(c128,plain,
double_divide(inverse(X2),double_divide(double_divide(X,X2),inverse(identity))) = double_divide(inverse(X2),double_divide(double_divide(X,inverse(inverse(X2))),inverse(identity))),
inference(congruence,[status(thm)],[c127]) ).
cnf(c129,plain,
double_divide(double_divide(inverse(X2),double_divide(double_divide(X,X2),inverse(identity))),inverse(identity)) = double_divide(double_divide(inverse(X2),double_divide(double_divide(X,inverse(inverse(X2))),inverse(identity))),inverse(identity)),
inference(congruence,[status(thm)],[c128]) ).
cnf(c130,plain,
double_divide(double_divide(inverse(X2),double_divide(double_divide(X,inverse(inverse(X2))),inverse(identity))),inverse(identity)) = X,
inference(substitution,[status(thm)],[c36]) ).
cnf(c131,plain,
double_divide(double_divide(inverse(X2),double_divide(double_divide(X,X2),inverse(identity))),inverse(identity)) = X,
inference(transitivity,[status(thm)],[c129,c130]) ).
cnf(c132,plain,
double_divide(double_divide(inverse(X2),double_divide(double_divide(X,X2),inverse(identity))),identity) = X,
inference(transitivity,[status(thm)],[c124,c131]) ).
cnf(c133,plain,
double_divide(double_divide(inverse(X2),double_divide(double_divide(X,X2),identity)),identity) = X,
inference(transitivity,[status(thm)],[c122,c132]) ).
cnf(c134,plain,
inverse(double_divide(inverse(X2),double_divide(double_divide(X,X2),identity))) = X,
inference(transitivity,[status(thm)],[c118,c133]) ).
cnf(c135,plain,
multiply(double_divide(double_divide(X,X2),identity),inverse(X2)) = X,
inference(transitivity,[status(thm)],[c117,c134]) ).
cnf(c136,plain,
multiply(inverse(double_divide(X,X2)),inverse(X2)) = X,
inference(transitivity,[status(thm)],[c115,c135]) ).
cnf(c137,plain,
multiply(multiply(X2,X),inverse(X2)) = X,
inference(transitivity,[status(thm)],[c113,c136]) ).
cnf(c138,plain,
multiply(multiply(X,X2),inverse(X)) = X2,
inference(substitution,[status(thm)],[c137]) ).
cnf(c139,plain,
X2 = multiply(multiply(X,X2),inverse(X)),
inference(symmetry,[status(thm)],[c138]) ).
cnf(c140,plain,
multiply(X2,inverse(multiply(X,X2))) = multiply(multiply(multiply(X,X2),inverse(X)),inverse(multiply(X,X2))),
inference(congruence,[status(thm)],[c139]) ).
cnf(c141,plain,
multiply(multiply(multiply(X,X2),inverse(X)),inverse(multiply(X,X2))) = inverse(X),
inference(substitution,[status(thm)],[c137]) ).
cnf(c142,plain,
multiply(X2,inverse(multiply(X,X2))) = inverse(X),
inference(transitivity,[status(thm)],[c140,c141]) ).
cnf(c143,plain,
multiply(X2,double_divide(X2,X)) = inverse(X),
inference(transitivity,[status(thm)],[c110,c142]) ).
cnf(c144,plain,
multiply(double_divide(X2,inverse(identity)),double_divide(double_divide(X2,inverse(identity)),X)) = inverse(X),
inference(substitution,[status(thm)],[c143]) ).
cnf(c145,plain,
inverse(X) = multiply(double_divide(X2,inverse(identity)),double_divide(double_divide(X2,inverse(identity)),X)),
inference(symmetry,[status(thm)],[c144]) ).
cnf(c146,plain,
double_divide(X2,inverse(X)) = double_divide(X2,multiply(double_divide(X2,inverse(identity)),double_divide(double_divide(X2,inverse(identity)),X))),
inference(congruence,[status(thm)],[c145]) ).
cnf(c147,plain,
multiply(inverse(identity),double_divide(X2,inverse(X))) = multiply(inverse(identity),double_divide(X2,multiply(double_divide(X2,inverse(identity)),double_divide(double_divide(X2,inverse(identity)),X)))),
inference(congruence,[status(thm)],[c146]) ).
cnf(c148,plain,
inverse(double_divide(double_divide(X2,multiply(double_divide(X2,inverse(identity)),X)),inverse(identity))) = multiply(inverse(identity),double_divide(X2,multiply(double_divide(X2,inverse(identity)),X))),
inference(substitution,[status(thm)],[c7]) ).
cnf(c149,plain,
multiply(inverse(identity),double_divide(X2,multiply(double_divide(X2,inverse(identity)),X))) = inverse(double_divide(double_divide(X2,multiply(double_divide(X2,inverse(identity)),X)),inverse(identity))),
inference(symmetry,[status(thm)],[c148]) ).
cnf(c150,plain,
inverse(double_divide(double_divide(X2,multiply(double_divide(X2,inverse(identity)),X)),inverse(identity))) = inverse(X),
inference(congruence,[status(thm)],[c72]) ).
cnf(c151,plain,
multiply(inverse(identity),double_divide(X2,multiply(double_divide(X2,inverse(identity)),X))) = inverse(X),
inference(transitivity,[status(thm)],[c149,c150]) ).
cnf(c152,plain,
multiply(inverse(identity),double_divide(X2,multiply(double_divide(X2,inverse(identity)),double_divide(double_divide(X2,inverse(identity)),X)))) = inverse(double_divide(double_divide(X2,inverse(identity)),X)),
inference(substitution,[status(thm)],[c151]) ).
cnf(c153,plain,
inverse(double_divide(double_divide(X2,inverse(identity)),X)) = multiply(X,double_divide(X2,inverse(identity))),
inference(substitution,[status(thm)],[c7]) ).
cnf(c154,plain,
double_divide(X,inverse(identity)) = double_divide(X,identity),
inference(congruence,[status(thm)],[c83]) ).
cnf(c155,plain,
multiply(X,double_divide(X2,inverse(identity))) = multiply(X,double_divide(X2,identity)),
inference(congruence,[status(thm)],[c154]) ).
cnf(c156,plain,
inverse(X) = double_divide(X,identity),
inference(substitution,[status(thm)],[c2]) ).
cnf(c157,plain,
double_divide(X,identity) = inverse(X),
inference(symmetry,[status(thm)],[c156]) ).
cnf(c158,plain,
multiply(X,double_divide(X2,identity)) = multiply(X,inverse(X2)),
inference(congruence,[status(thm)],[c157]) ).
cnf(c159,plain,
multiply(X,double_divide(X2,inverse(identity))) = multiply(X,inverse(X2)),
inference(transitivity,[status(thm)],[c155,c158]) ).
cnf(c160,plain,
inverse(double_divide(double_divide(X2,inverse(identity)),X)) = multiply(X,inverse(X2)),
inference(transitivity,[status(thm)],[c153,c159]) ).
cnf(c161,plain,
multiply(inverse(identity),double_divide(X2,multiply(double_divide(X2,inverse(identity)),double_divide(double_divide(X2,inverse(identity)),X)))) = multiply(X,inverse(X2)),
inference(transitivity,[status(thm)],[c152,c160]) ).
cnf(c162,plain,
multiply(inverse(identity),double_divide(X2,inverse(X))) = multiply(X,inverse(X2)),
inference(transitivity,[status(thm)],[c147,c161]) ).
cnf(c163,plain,
multiply(identity,double_divide(X2,inverse(X))) = multiply(X,inverse(X2)),
inference(transitivity,[status(thm)],[c97,c162]) ).
cnf(c164,plain,
inverse(inverse(double_divide(X2,inverse(X)))) = multiply(X,inverse(X2)),
inference(transitivity,[status(thm)],[c95,c163]) ).
cnf(c165,plain,
double_divide(X2,inverse(X)) = multiply(X,inverse(X2)),
inference(transitivity,[status(thm)],[c93,c164]) ).
cnf(c166,plain,
double_divide(double_divide(X2,X),inverse(identity)) = multiply(identity,inverse(double_divide(X2,X))),
inference(substitution,[status(thm)],[c165]) ).
cnf(c167,plain,
multiply(identity,inverse(double_divide(X2,X))) = double_divide(double_divide(X2,X),inverse(identity)),
inference(symmetry,[status(thm)],[c166]) ).
cnf(c168,plain,
inverse(double_divide(X,inverse(X2))) = multiply(inverse(X2),X),
inference(substitution,[status(thm)],[c7]) ).
cnf(c169,plain,
multiply(inverse(X2),X) = inverse(double_divide(X,inverse(X2))),
inference(symmetry,[status(thm)],[c168]) ).
cnf(c170,plain,
multiply(X2,multiply(inverse(X2),X)) = multiply(X2,inverse(double_divide(X,inverse(X2)))),
inference(congruence,[status(thm)],[c169]) ).
cnf(c171,plain,
double_divide(double_divide(X,inverse(X2)),inverse(X2)) = multiply(X2,inverse(double_divide(X,inverse(X2)))),
inference(substitution,[status(thm)],[c165]) ).
cnf(c172,plain,
multiply(X2,inverse(double_divide(X,inverse(X2)))) = double_divide(double_divide(X,inverse(X2)),inverse(X2)),
inference(symmetry,[status(thm)],[c171]) ).
cnf(c173,plain,
X = inverse(inverse(X)),
inference(symmetry,[status(thm)],[c87]) ).
cnf(c174,plain,
double_divide(identity,X) = double_divide(identity,inverse(inverse(X))),
inference(congruence,[status(thm)],[c173]) ).
cnf(c175,plain,
inverse(inverse(X)) = multiply(identity,X),
inference(symmetry,[status(thm)],[c50]) ).
cnf(c176,plain,
double_divide(identity,inverse(inverse(X))) = double_divide(identity,multiply(identity,X)),
inference(congruence,[status(thm)],[c175]) ).
cnf(c177,plain,
identity = inverse(identity),
inference(symmetry,[status(thm)],[c83]) ).
cnf(c178,plain,
double_divide(identity,multiply(identity,X)) = double_divide(inverse(identity),multiply(identity,X)),
inference(congruence,[status(thm)],[c177]) ).
cnf(c179,plain,
inverse(inverse(double_divide(inverse(identity),multiply(identity,X)))) = double_divide(inverse(identity),multiply(identity,X)),
inference(substitution,[status(thm)],[c87]) ).
cnf(c180,plain,
double_divide(inverse(identity),multiply(identity,X)) = inverse(inverse(double_divide(inverse(identity),multiply(identity,X)))),
inference(symmetry,[status(thm)],[c179]) ).
cnf(c181,plain,
multiply(identity,double_divide(inverse(identity),multiply(identity,X))) = inverse(inverse(double_divide(inverse(identity),multiply(identity,X)))),
inference(substitution,[status(thm)],[c50]) ).
cnf(c182,plain,
inverse(inverse(double_divide(inverse(identity),multiply(identity,X)))) = multiply(identity,double_divide(inverse(identity),multiply(identity,X))),
inference(symmetry,[status(thm)],[c181]) ).
cnf(c183,plain,
identity = inverse(identity),
inference(symmetry,[status(thm)],[c83]) ).
cnf(c184,plain,
multiply(identity,double_divide(inverse(identity),multiply(identity,X))) = multiply(inverse(identity),double_divide(inverse(identity),multiply(identity,X))),
inference(congruence,[status(thm)],[c183]) ).
cnf(c185,plain,
identity = inverse(identity),
inference(symmetry,[status(thm)],[c83]) ).
cnf(c186,plain,
inverse(identity) = inverse(inverse(identity)),
inference(congruence,[status(thm)],[c185]) ).
cnf(c187,plain,
double_divide(inverse(identity),multiply(identity,X)) = double_divide(inverse(inverse(identity)),multiply(identity,X)),
inference(congruence,[status(thm)],[c186]) ).
cnf(c188,plain,
multiply(inverse(identity),double_divide(inverse(identity),multiply(identity,X))) = multiply(inverse(identity),double_divide(inverse(inverse(identity)),multiply(identity,X))),
inference(congruence,[status(thm)],[c187]) ).
cnf(c189,plain,
double_divide(double_divide(identity,double_divide(double_divide(double_divide(inverse(X),X),inverse(identity)),inverse(identity))),inverse(identity)) = double_divide(inverse(X),X),
inference(substitution,[status(thm)],[c36]) ).
cnf(c190,plain,
double_divide(inverse(X),X) = double_divide(double_divide(identity,double_divide(double_divide(double_divide(inverse(X),X),inverse(identity)),inverse(identity))),inverse(identity)),
inference(symmetry,[status(thm)],[c189]) ).
cnf(c191,plain,
double_divide(double_divide(double_divide(inverse(X),X),inverse(identity)),inverse(identity)) = double_divide(identity,inverse(identity)),
inference(congruence,[status(thm)],[c80]) ).
cnf(c192,plain,
double_divide(identity,double_divide(double_divide(double_divide(inverse(X),X),inverse(identity)),inverse(identity))) = double_divide(identity,double_divide(identity,inverse(identity))),
inference(congruence,[status(thm)],[c191]) ).
cnf(c193,plain,
double_divide(double_divide(identity,double_divide(double_divide(double_divide(inverse(X),X),inverse(identity)),inverse(identity))),inverse(identity)) = double_divide(double_divide(identity,double_divide(identity,inverse(identity))),inverse(identity)),
inference(congruence,[status(thm)],[c192]) ).
cnf(c194,plain,
identity = double_divide(identity,inverse(identity)),
inference(substitution,[status(thm)],[c12]) ).
cnf(c195,plain,
double_divide(identity,inverse(identity)) = identity,
inference(symmetry,[status(thm)],[c194]) ).
cnf(c196,plain,
double_divide(identity,double_divide(identity,inverse(identity))) = double_divide(identity,identity),
inference(congruence,[status(thm)],[c195]) ).
cnf(c197,plain,
double_divide(double_divide(identity,double_divide(identity,inverse(identity))),inverse(identity)) = double_divide(double_divide(identity,identity),inverse(identity)),
inference(congruence,[status(thm)],[c196]) ).
cnf(c198,plain,
inverse(identity) = double_divide(identity,identity),
inference(substitution,[status(thm)],[c2]) ).
cnf(c199,plain,
double_divide(identity,identity) = inverse(identity),
inference(symmetry,[status(thm)],[c198]) ).
cnf(c200,plain,
double_divide(double_divide(identity,identity),inverse(identity)) = double_divide(inverse(identity),inverse(identity)),
inference(congruence,[status(thm)],[c199]) ).
cnf(c201,plain,
double_divide(inverse(identity),inverse(identity)) = identity,
inference(substitution,[status(thm)],[c40]) ).
cnf(c202,plain,
double_divide(double_divide(identity,identity),inverse(identity)) = identity,
inference(transitivity,[status(thm)],[c200,c201]) ).
cnf(c203,plain,
double_divide(double_divide(identity,double_divide(identity,inverse(identity))),inverse(identity)) = identity,
inference(transitivity,[status(thm)],[c197,c202]) ).
cnf(c204,plain,
double_divide(double_divide(identity,double_divide(double_divide(double_divide(inverse(X),X),inverse(identity)),inverse(identity))),inverse(identity)) = identity,
inference(transitivity,[status(thm)],[c193,c203]) ).
cnf(c205,plain,
double_divide(inverse(X),X) = identity,
inference(transitivity,[status(thm)],[c190,c204]) ).
cnf(c206,plain,
double_divide(inverse(inverse(identity)),inverse(identity)) = identity,
inference(substitution,[status(thm)],[c205]) ).
cnf(c207,plain,
identity = double_divide(inverse(inverse(identity)),inverse(identity)),
inference(symmetry,[status(thm)],[c206]) ).
cnf(c208,plain,
multiply(identity,X) = multiply(double_divide(inverse(inverse(identity)),inverse(identity)),X),
inference(congruence,[status(thm)],[c207]) ).
cnf(c209,plain,
double_divide(inverse(inverse(identity)),multiply(identity,X)) = double_divide(inverse(inverse(identity)),multiply(double_divide(inverse(inverse(identity)),inverse(identity)),X)),
inference(congruence,[status(thm)],[c208]) ).
cnf(c210,plain,
multiply(inverse(identity),double_divide(inverse(inverse(identity)),multiply(identity,X))) = multiply(inverse(identity),double_divide(inverse(inverse(identity)),multiply(double_divide(inverse(inverse(identity)),inverse(identity)),X))),
inference(congruence,[status(thm)],[c209]) ).
cnf(c211,plain,
multiply(inverse(identity),double_divide(inverse(inverse(identity)),multiply(double_divide(inverse(inverse(identity)),inverse(identity)),X))) = inverse(X),
inference(substitution,[status(thm)],[c151]) ).
cnf(c212,plain,
multiply(inverse(identity),double_divide(inverse(inverse(identity)),multiply(identity,X))) = inverse(X),
inference(transitivity,[status(thm)],[c210,c211]) ).
cnf(c213,plain,
multiply(inverse(identity),double_divide(inverse(identity),multiply(identity,X))) = inverse(X),
inference(transitivity,[status(thm)],[c188,c212]) ).
cnf(c214,plain,
multiply(identity,double_divide(inverse(identity),multiply(identity,X))) = inverse(X),
inference(transitivity,[status(thm)],[c184,c213]) ).
cnf(c215,plain,
inverse(inverse(double_divide(inverse(identity),multiply(identity,X)))) = inverse(X),
inference(transitivity,[status(thm)],[c182,c214]) ).
cnf(c216,plain,
double_divide(inverse(identity),multiply(identity,X)) = inverse(X),
inference(transitivity,[status(thm)],[c180,c215]) ).
cnf(c217,plain,
double_divide(identity,multiply(identity,X)) = inverse(X),
inference(transitivity,[status(thm)],[c178,c216]) ).
cnf(c218,plain,
double_divide(identity,inverse(inverse(X))) = inverse(X),
inference(transitivity,[status(thm)],[c176,c217]) ).
cnf(c219,plain,
double_divide(identity,X) = inverse(X),
inference(transitivity,[status(thm)],[c174,c218]) ).
cnf(c220,plain,
inverse(X) = double_divide(identity,X),
inference(symmetry,[status(thm)],[c219]) ).
cnf(c221,plain,
double_divide(X,inverse(X2)) = double_divide(X,double_divide(identity,X2)),
inference(congruence,[status(thm)],[c220]) ).
cnf(c222,plain,
double_divide(double_divide(X,inverse(X2)),inverse(X2)) = double_divide(double_divide(X,double_divide(identity,X2)),inverse(X2)),
inference(congruence,[status(thm)],[c221]) ).
cnf(c223,plain,
inverse(X) = double_divide(identity,X),
inference(symmetry,[status(thm)],[c219]) ).
cnf(c224,plain,
double_divide(double_divide(X,double_divide(identity,X2)),inverse(X2)) = double_divide(double_divide(X,double_divide(identity,X2)),double_divide(identity,X2)),
inference(congruence,[status(thm)],[c223]) ).
cnf(c225,plain,
double_divide(inverse(double_divide(double_divide(X,double_divide(identity,X2)),double_divide(identity,X2))),inverse(identity)) = double_divide(double_divide(X,double_divide(identity,X2)),double_divide(identity,X2)),
inference(substitution,[status(thm)],[c40]) ).
cnf(c226,plain,
double_divide(double_divide(X,double_divide(identity,X2)),double_divide(identity,X2)) = double_divide(inverse(double_divide(double_divide(X,double_divide(identity,X2)),double_divide(identity,X2))),inverse(identity)),
inference(symmetry,[status(thm)],[c225]) ).
cnf(c227,plain,
double_divide(identity,double_divide(double_divide(X,double_divide(identity,X2)),double_divide(identity,X2))) = inverse(double_divide(double_divide(X,double_divide(identity,X2)),double_divide(identity,X2))),
inference(substitution,[status(thm)],[c219]) ).
cnf(c228,plain,
inverse(double_divide(double_divide(X,double_divide(identity,X2)),double_divide(identity,X2))) = double_divide(identity,double_divide(double_divide(X,double_divide(identity,X2)),double_divide(identity,X2))),
inference(symmetry,[status(thm)],[c227]) ).
cnf(c229,plain,
double_divide(inverse(double_divide(double_divide(X,double_divide(identity,X2)),double_divide(identity,X2))),inverse(identity)) = double_divide(double_divide(identity,double_divide(double_divide(X,double_divide(identity,X2)),double_divide(identity,X2))),inverse(identity)),
inference(congruence,[status(thm)],[c228]) ).
cnf(c230,plain,
double_divide(double_divide(identity,double_divide(double_divide(X,double_divide(identity,X2)),double_divide(identity,X2))),inverse(identity)) = X,
inference(substitution,[status(thm)],[c33]) ).
cnf(c231,plain,
double_divide(inverse(double_divide(double_divide(X,double_divide(identity,X2)),double_divide(identity,X2))),inverse(identity)) = X,
inference(transitivity,[status(thm)],[c229,c230]) ).
cnf(c232,plain,
double_divide(double_divide(X,double_divide(identity,X2)),double_divide(identity,X2)) = X,
inference(transitivity,[status(thm)],[c226,c231]) ).
cnf(c233,plain,
double_divide(double_divide(X,double_divide(identity,X2)),inverse(X2)) = X,
inference(transitivity,[status(thm)],[c224,c232]) ).
cnf(c234,plain,
double_divide(double_divide(X,inverse(X2)),inverse(X2)) = X,
inference(transitivity,[status(thm)],[c222,c233]) ).
cnf(c235,plain,
multiply(X2,inverse(double_divide(X,inverse(X2)))) = X,
inference(transitivity,[status(thm)],[c172,c234]) ).
cnf(c236,plain,
multiply(X2,multiply(inverse(X2),X)) = X,
inference(transitivity,[status(thm)],[c170,c235]) ).
cnf(c237,plain,
multiply(double_divide(X2,inverse(identity)),multiply(inverse(double_divide(X2,inverse(identity))),X)) = X,
inference(substitution,[status(thm)],[c236]) ).
cnf(c238,plain,
X = multiply(double_divide(X2,inverse(identity)),multiply(inverse(double_divide(X2,inverse(identity))),X)),
inference(symmetry,[status(thm)],[c237]) ).
cnf(c239,plain,
double_divide(X2,X) = double_divide(X2,multiply(double_divide(X2,inverse(identity)),multiply(inverse(double_divide(X2,inverse(identity))),X))),
inference(congruence,[status(thm)],[c238]) ).
cnf(c240,plain,
double_divide(double_divide(X2,X),inverse(identity)) = double_divide(double_divide(X2,multiply(double_divide(X2,inverse(identity)),multiply(inverse(double_divide(X2,inverse(identity))),X))),inverse(identity)),
inference(congruence,[status(thm)],[c239]) ).
cnf(c241,plain,
double_divide(double_divide(X2,multiply(double_divide(X2,inverse(identity)),multiply(inverse(double_divide(X2,inverse(identity))),X))),inverse(identity)) = multiply(inverse(double_divide(X2,inverse(identity))),X),
inference(substitution,[status(thm)],[c72]) ).
cnf(c242,plain,
inverse(double_divide(X,inverse(identity))) = multiply(inverse(identity),X),
inference(substitution,[status(thm)],[c7]) ).
cnf(c243,plain,
multiply(inverse(double_divide(X2,inverse(identity))),X) = multiply(multiply(inverse(identity),X2),X),
inference(congruence,[status(thm)],[c242]) ).
cnf(c244,plain,
multiply(inverse(identity),X) = multiply(identity,X),
inference(congruence,[status(thm)],[c83]) ).
cnf(c245,plain,
multiply(multiply(inverse(identity),X2),X) = multiply(multiply(identity,X2),X),
inference(congruence,[status(thm)],[c244]) ).
cnf(c246,plain,
multiply(multiply(identity,X2),X) = multiply(inverse(inverse(X2)),X),
inference(congruence,[status(thm)],[c50]) ).
cnf(c247,plain,
multiply(inverse(inverse(X2)),X) = multiply(X2,X),
inference(congruence,[status(thm)],[c87]) ).
cnf(c248,plain,
multiply(multiply(identity,X2),X) = multiply(X2,X),
inference(transitivity,[status(thm)],[c246,c247]) ).
cnf(c249,plain,
multiply(multiply(inverse(identity),X2),X) = multiply(X2,X),
inference(transitivity,[status(thm)],[c245,c248]) ).
cnf(c250,plain,
multiply(inverse(double_divide(X2,inverse(identity))),X) = multiply(X2,X),
inference(transitivity,[status(thm)],[c243,c249]) ).
cnf(c251,plain,
double_divide(double_divide(X2,multiply(double_divide(X2,inverse(identity)),multiply(inverse(double_divide(X2,inverse(identity))),X))),inverse(identity)) = multiply(X2,X),
inference(transitivity,[status(thm)],[c241,c250]) ).
cnf(c252,plain,
double_divide(double_divide(X2,X),inverse(identity)) = multiply(X2,X),
inference(transitivity,[status(thm)],[c240,c251]) ).
cnf(c253,plain,
multiply(identity,inverse(double_divide(X2,X))) = multiply(X2,X),
inference(transitivity,[status(thm)],[c167,c252]) ).
cnf(c254,plain,
inverse(inverse(inverse(double_divide(X2,X)))) = multiply(X2,X),
inference(transitivity,[status(thm)],[c91,c253]) ).
cnf(c255,plain,
inverse(double_divide(X2,X)) = multiply(X2,X),
inference(transitivity,[status(thm)],[c89,c254]) ).
cnf(c256,plain,
multiply(X,X2) = multiply(X2,X),
inference(transitivity,[status(thm)],[c8,c255]) ).
cnf(c257,plain,
multiply(a,b) = multiply(b,a),
inference(substitution,[status(thm)],[c256]) ).
cnf(c258,plain,
$false,
inference(resolution,[status(thm)],[c1,c257]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : GRP568-1 : TPTP v9.3.1. Bugfixed v2.7.0.
% 0.00/0.03 % Command : run_twee /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.10/0.37 % Computer : n010.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 10:07:46 UTC 2026
% 0.10/0.37 % CPUTime :
% 0.10/0.37 Running run_twee /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.19/0.46 Command-line arguments: --no-flatten-goal
% 0.19/0.46
% 0.19/0.46 % SZS status Unsatisfiable
% 0.19/0.46
% 0.19/0.48 % SZS output start CNFRefutation
% See solution above
% 0.19/0.58
% 0.19/0.58 RESULT: Unsatisfiable (the axioms are contradictory).
%------------------------------------------------------------------------------