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FindProof---0.1.UNS-Prf.s

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%------------------------------------------------------------------------------
% File     : FindProof---0.1
% Problem  : GRP110-1 : TPTP v9.3.1. Bugfixed v2.7.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_findproof /export/starexec/sandbox/benchmark/theBenchmark.p 300

% 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 : Fri Sep 25 01:25:12 PM UTC 2026

% Result   : Unsatisfiable 8.43s 1.54s
% Output   : Proof 8.43s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   70
%            Number of leaves      :    4
% Syntax   : Number of formulae    :  119 ( 115 unt;   0 def)
%            Number of atoms       :  131 ( 130 equ)
%            Maximal formula atoms :    4 (   1 avg)
%            Number of connectives :   30 (  18   ~;  12   |;   0   &)
%                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    5 (   1 avg)
%            Maximal term depth    :    7 (   2 avg)
%            Number of predicates  :    2 (   0 usr;   1 prp; 0-2 aty)
%            Number of functors    :   15 (  15 usr;  11 con; 0-4 aty)
%            Number of variables   :  233 (   2 sgn  10   !;   0   ?)

% Comments : 
%------------------------------------------------------------------------------
cnf(f2,negated_conjecture,
    ( multiply(a4,b4) != multiply(b4,a4)
    | multiply(multiply(a3,b3),c3) != multiply(a3,multiply(b3,c3))
    | multiply(multiply(inverse(b2),b2),a2) != a2
    | multiply(inverse(a1),a1) != multiply(inverse(b1),b1) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_these_axioms) ).

fof(f2_nnf,plain,
    ( multiply(a4,b4) != multiply(b4,a4)
    | multiply(multiply(a3,b3),c3) != multiply(a3,multiply(b3,c3))
    | multiply(multiply(inverse(b2),b2),a2) != a2
    | multiply(inverse(a1),a1) != multiply(inverse(b1),b1) ),
    inference(nnf_transformation,[status(thm)],[f2]) ).

fof(f2_sk,plain,
    ( multiply(a4,b4) != multiply(b4,a4)
    | multiply(multiply(a3,b3),c3) != multiply(a3,multiply(b3,c3))
    | multiply(multiply(inverse(b2),b2),a2) != a2
    | multiply(inverse(a1),a1) != multiply(inverse(b1),b1) ),
    inference(skolemisation,[status(esa)],[f2_nnf]) ).

cnf(c2,plain,
    ( multiply(a4,b4) != multiply(b4,a4)
    | multiply(multiply(a3,b3),c3) != multiply(a3,multiply(b3,c3))
    | multiply(multiply(inverse(b2),b2),a2) != a2
    | multiply(inverse(a1),a1) != multiply(inverse(b1),b1) ),
    inference(cnf_transformation,[status(esa)],[f2_sk]) ).

cnf(t3,plain,
    ifeq(multiply(inverse(a1),a1),multiply(inverse(b1),b1),ifeq(multiply(multiply(inverse(b2),b2),a2),a2,ifeq(multiply(multiply(a3,b3),c3),multiply(a3,multiply(b3,c3)),ifeq(multiply(a4,b4),multiply(b4,a4),false,true),true),true),true) = true,
    inference(equality_encoding,[status(esa)],[c2]) ).

cnf(t10,plain,
    ifeq(multiply(inverse(a1),a1),multiply(inverse(b1),b1),ifeq(multiply(multiply(inverse(b2),b2),a2),a2,ifeq(multiply(multiply(a3,b3),c3),multiply(a3,multiply(b3,c3)),ifeq(multiply(a4,b4),multiply(b4,a4),false,true),true),true),true) = true,
    inference(orient,[status(thm)],[t3]) ).

cnf(t514,plain,
    ifeq(multiply(inverse(a1),a1),multiply(inverse(b1),b1),ifeq(multiply(multiply(inverse(b2),b2),a2),a2,ifeq(multiply(multiply(a3,b3),c3),multiply(a3,multiply(b3,c3)),ifeq(multiply(a4,b4),multiply(b4,a4),false,true),true),true),true) = true,
    inference(rw,[status(thm)],[t10]) ).

cnf(f1,axiom,
    multiply(X,Y) = inverse(double_divide(Y,X)),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',multiply) ).

fof(f1_nnf,plain,
    ! [X,Y] : multiply(X,Y) = inverse(double_divide(Y,X)),
    inference(nnf_transformation,[status(thm)],[f1]) ).

fof(f1_sk,plain,
    ! [X,Y] : multiply(X,Y) = inverse(double_divide(Y,X)),
    inference(skolemisation,[status(esa)],[f1_nnf]) ).

cnf(c1,plain,
    multiply(X0,X1) = inverse(double_divide(X1,X0)),
    inference(cnf_transformation,[status(esa)],[f1_sk]) ).

cnf(t1,plain,
    inverse(double_divide(X1,X2)) = multiply(X2,X1),
    inference(equality_encoding,[status(esa)],[c1]) ).

cnf(t8,plain,
    inverse(double_divide(X1,X2)) = multiply(X2,X1),
    inference(orient,[status(thm)],[t1]) ).

cnf(f0,axiom,
    inverse(double_divide(inverse(double_divide(inverse(double_divide(X,Y)),Z)),double_divide(X,Z))) = Y,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',single_axiom) ).

fof(f0_nnf,plain,
    ! [X,Y,Z] : inverse(double_divide(inverse(double_divide(inverse(double_divide(X,Y)),Z)),double_divide(X,Z))) = Y,
    inference(nnf_transformation,[status(thm)],[f0]) ).

fof(f0_sk,plain,
    ! [X,Y,Z] : inverse(double_divide(inverse(double_divide(inverse(double_divide(X,Y)),Z)),double_divide(X,Z))) = Y,
    inference(skolemisation,[status(esa)],[f0_nnf]) ).

cnf(c0,plain,
    inverse(double_divide(inverse(double_divide(inverse(double_divide(X0,X1)),X2)),double_divide(X0,X2))) = X1,
    inference(cnf_transformation,[status(esa)],[f0_sk]) ).

cnf(t2,plain,
    inverse(double_divide(inverse(double_divide(inverse(double_divide(X1,X2)),X3)),double_divide(X1,X3))) = X2,
    inference(equality_encoding,[status(esa)],[c0]) ).

cnf(t4,plain,
    inverse(double_divide(inverse(double_divide(inverse(double_divide(X1,X2)),X3)),double_divide(X1,X3))) = X2,
    inference(orient,[status(thm)],[t2]) ).

cnf(t4719,plain,
    multiply(double_divide(X1,X3),inverse(double_divide(inverse(double_divide(X1,X2)),X3))) = X2,
    inference(step,[status(thm)],[t4,t8]) ).

cnf(t4720,plain,
    multiply(double_divide(X1,X3),multiply(X3,inverse(double_divide(X1,X2)))) = X2,
    inference(step,[status(thm)],[t4719,t8]) ).

cnf(t4721,plain,
    multiply(double_divide(X1,X3),multiply(X3,multiply(X2,X1))) = X2,
    inference(step,[status(thm)],[t4720,t8]) ).

cnf(t9,plain,
    multiply(double_divide(X1,X3),multiply(X3,multiply(X2,X1))) = X2,
    inference(rw,[status(thm)],[t4721]) ).

cnf(t11,plain,
    multiply(double_divide(X1,X2),multiply(X2,multiply(X3,X1))) = X3,
    inference(orient,[status(thm)],[t9]) ).

cnf(t13,plain,
    double_divide(X1,X2) = multiply(double_divide(multiply(X2,multiply(X3,X1)),Y3),multiply(Y3,X3)),
    inference(cp,[status(thm)],[t11,t11]) ).

cnf(t19,plain,
    multiply(double_divide(multiply(X1,multiply(X2,X3)),Y3),multiply(Y3,X2)) = double_divide(X3,X1),
    inference(orient,[status(thm)],[t13]) ).

cnf(t12,plain,
    X1 = multiply(double_divide(multiply(X2,X3),double_divide(X3,X1)),X2),
    inference(cp,[status(thm)],[t11,t11]) ).

cnf(t14,plain,
    multiply(double_divide(multiply(X1,X2),double_divide(X2,X3)),X1) = X3,
    inference(orient,[status(thm)],[t12]) ).

cnf(t20,plain,
    double_divide(X1,multiply(double_divide(multiply(X2,X1),X3),X2)) = X3,
    inference(cp,[status(thm)],[t19,t14]) ).

cnf(t33,plain,
    double_divide(X1,multiply(double_divide(multiply(X2,X1),X3),X2)) = X3,
    inference(orient,[status(thm)],[t20]) ).

cnf(t38,plain,
    multiply(multiply(double_divide(multiply(X1,X2),X3),X1),X2) = inverse(X3),
    inference(cp,[status(thm)],[t8,t33]) ).

cnf(t54,plain,
    multiply(multiply(double_divide(multiply(X1,X2),X3),X1),X2) = inverse(X3),
    inference(orient,[status(thm)],[t38]) ).

cnf(t34,plain,
    X1 = double_divide(multiply(X2,X3),double_divide(X3,multiply(X1,X2))),
    inference(cp,[status(thm)],[t33,t19]) ).

cnf(t43,plain,
    double_divide(multiply(X1,X2),double_divide(X2,multiply(X3,X1))) = X3,
    inference(orient,[status(thm)],[t34]) ).

cnf(t50,plain,
    multiply(double_divide(X1,multiply(X2,X3)),multiply(X3,X1)) = inverse(X2),
    inference(cp,[status(thm)],[t8,t43]) ).

cnf(t70,plain,
    multiply(double_divide(X1,multiply(X2,X3)),multiply(X3,X1)) = inverse(X2),
    inference(orient,[status(thm)],[t50]) ).

cnf(t79,plain,
    X1 = multiply(double_divide(X2,double_divide(X2,multiply(X3,X1))),inverse(X3)),
    inference(cp,[status(thm)],[t11,t70]) ).

cnf(t91,plain,
    multiply(double_divide(X1,double_divide(X1,multiply(X2,X3))),inverse(X2)) = X3,
    inference(orient,[status(thm)],[t79]) ).

cnf(t109,plain,
    double_divide(multiply(inverse(X1),X2),multiply(X1,X3)) = double_divide(X2,X3),
    inference(cp,[status(thm)],[t33,t91]) ).

cnf(t132,plain,
    double_divide(multiply(inverse(X1),X2),multiply(X1,X3)) = double_divide(X2,X3),
    inference(orient,[status(thm)],[t109]) ).

cnf(t146,plain,
    multiply(X1,X2) = double_divide(X3,multiply(double_divide(X3,X2),inverse(X1))),
    inference(cp,[status(thm)],[t33,t132]) ).

cnf(t147,plain,
    double_divide(X1,multiply(double_divide(X1,X2),inverse(X3))) = multiply(X3,X2),
    inference(orient,[status(thm)],[t146]) ).

cnf(t148,plain,
    multiply(X1,double_divide(X2,multiply(X1,X3))) = double_divide(X2,X3),
    inference(cp,[status(thm)],[t147,t91]) ).

cnf(t179,plain,
    multiply(X1,double_divide(X2,multiply(X1,X3))) = double_divide(X2,X3),
    inference(orient,[status(thm)],[t148]) ).

cnf(t180,plain,
    double_divide(X1,X2) = multiply(double_divide(multiply(X2,X1),X3),X3),
    inference(cp,[status(thm)],[t179,t33]) ).

cnf(t205,plain,
    multiply(double_divide(multiply(X1,X2),X3),X3) = double_divide(X2,X1),
    inference(orient,[status(thm)],[t180]) ).

cnf(t233,plain,
    inverse(X1) = multiply(double_divide(X2,X1),X2),
    inference(cp,[status(thm)],[t54,t205]) ).

cnf(t268,plain,
    multiply(double_divide(X1,X2),X1) = inverse(X2),
    inference(orient,[status(thm)],[t233]) ).

cnf(t207,plain,
    double_divide(X1,X2) = inverse(multiply(X2,X1)),
    inference(cp,[status(thm)],[t205,t70]) ).

cnf(t237,plain,
    inverse(multiply(X1,X2)) = double_divide(X2,X1),
    inference(orient,[status(thm)],[t207]) ).

cnf(t276,plain,
    multiply(X1,X2) = double_divide(inverse(X1),inverse(X2)),
    inference(cp,[status(thm)],[t147,t268]) ).

cnf(t288,plain,
    double_divide(inverse(X1),inverse(X2)) = multiply(X1,X2),
    inference(orient,[status(thm)],[t276]) ).

cnf(t240,plain,
    double_divide(X1,multiply(double_divide(multiply(X2,X1),X3),X2)) = inverse(inverse(X3)),
    inference(cp,[status(thm)],[t237,t54]) ).

cnf(t4724,plain,
    X3 = inverse(inverse(X3)),
    inference(step,[status(thm)],[t240,t33]) ).

cnf(t250,plain,
    inverse(inverse(X1)) = X1,
    inference(orient,[status(thm)],[t4724]) ).

cnf(t289,plain,
    multiply(inverse(X1),X2) = double_divide(X1,inverse(X2)),
    inference(cp,[status(thm)],[t288,t250]) ).

cnf(t301,plain,
    double_divide(X1,inverse(X2)) = multiply(inverse(X1),X2),
    inference(orient,[status(thm)],[t289]) ).

cnf(t303,plain,
    multiply(inverse(X1),inverse(X2)) = double_divide(X1,X2),
    inference(cp,[status(thm)],[t301,t250]) ).

cnf(t315,plain,
    multiply(inverse(X1),inverse(X2)) = double_divide(X1,X2),
    inference(orient,[status(thm)],[t303]) ).

cnf(t330,plain,
    inverse(X1) = double_divide(multiply(inverse(X2),X3),double_divide(X3,double_divide(X1,X2))),
    inference(cp,[status(thm)],[t43,t315]) ).

cnf(t149,plain,
    multiply(X1,double_divide(X2,X3)) = double_divide(multiply(inverse(X1),X2),X3),
    inference(cp,[status(thm)],[t147,t14]) ).

cnf(t161,plain,
    double_divide(multiply(inverse(X1),X2),X3) = multiply(X1,double_divide(X2,X3)),
    inference(orient,[status(thm)],[t149]) ).

cnf(t4726,plain,
    inverse(X1) = multiply(X2,double_divide(X3,double_divide(X3,double_divide(X1,X2)))),
    inference(step,[status(thm)],[t330,t161]) ).

cnf(t206,plain,
    double_divide(X1,double_divide(X1,X2)) = X2,
    inference(cp,[status(thm)],[t205,t14]) ).

cnf(t255,plain,
    double_divide(X1,double_divide(X1,X2)) = X2,
    inference(orient,[status(thm)],[t206]) ).

cnf(t4727,plain,
    inverse(X1) = multiply(X2,double_divide(X1,X2)),
    inference(step,[status(thm)],[t4726,t255]) ).

cnf(t350,plain,
    multiply(X1,double_divide(X2,X1)) = inverse(X2),
    inference(orient,[status(thm)],[t4727]) ).

cnf(t358,plain,
    double_divide(double_divide(X1,X2),X2) = inverse(inverse(X1)),
    inference(cp,[status(thm)],[t237,t350]) ).

cnf(t4728,plain,
    double_divide(double_divide(X1,X2),X2) = X1,
    inference(step,[status(thm)],[t358,t250]) ).

cnf(t374,plain,
    double_divide(double_divide(X1,X2),X2) = X1,
    inference(orient,[status(thm)],[t4728]) ).

cnf(t377,plain,
    X1 = double_divide(X2,double_divide(X1,X2)),
    inference(cp,[status(thm)],[t374,t255]) ).

cnf(t391,plain,
    double_divide(X1,double_divide(X2,X1)) = X2,
    inference(orient,[status(thm)],[t377]) ).

cnf(t403,plain,
    inverse(double_divide(X1,X2)) = multiply(X1,X2),
    inference(cp,[status(thm)],[t268,t391]) ).

cnf(t4729,plain,
    multiply(X2,X1) = multiply(X1,X2),
    inference(step,[status(thm)],[t403,t8]) ).

cnf(t494,plain,
    multiply(X1,X2) = multiply(X2,X1),
    inference(orient,[status(thm)],[t4729]) ).

cnf(t4863,plain,
    ifeq(multiply(a1,inverse(a1)),multiply(inverse(b1),b1),ifeq(multiply(multiply(inverse(b2),b2),a2),a2,ifeq(multiply(multiply(a3,b3),c3),multiply(a3,multiply(b3,c3)),ifeq(multiply(a4,b4),multiply(b4,a4),false,true),true),true),true) = true,
    inference(step,[status(thm)],[t514,t494]) ).

cnf(t4725,plain,
    multiply(multiply(X2,X3),inverse(X2)) = X3,
    inference(step,[status(thm)],[t91,t255]) ).

cnf(t267,plain,
    multiply(multiply(X2,X3),inverse(X2)) = X3,
    inference(rw,[status(thm)],[t4725]) ).

cnf(t4730,plain,
    multiply(inverse(X2),multiply(X2,X3)) = X3,
    inference(step,[status(thm)],[t267,t494]) ).

cnf(t515,plain,
    multiply(inverse(X1),multiply(X1,X2)) = X2,
    inference(orient,[status(thm)],[t4730]) ).

cnf(t316,plain,
    double_divide(inverse(X1),X2) = multiply(X1,inverse(X2)),
    inference(cp,[status(thm)],[t315,t250]) ).

cnf(t336,plain,
    double_divide(inverse(X1),X2) = multiply(X1,inverse(X2)),
    inference(orient,[status(thm)],[t316]) ).

cnf(t337,plain,
    multiply(X1,inverse(double_divide(inverse(X1),X2))) = X2,
    inference(cp,[status(thm)],[t336,t255]) ).

cnf(t4731,plain,
    multiply(X1,multiply(X2,inverse(X1))) = X2,
    inference(step,[status(thm)],[t337,t8]) ).

cnf(t533,plain,
    multiply(X1,multiply(X2,inverse(X1))) = X2,
    inference(orient,[status(thm)],[t4731]) ).

cnf(t540,plain,
    X1 = multiply(double_divide(inverse(X2),X2),X1),
    inference(cp,[status(thm)],[t11,t533]) ).

cnf(t4733,plain,
    X1 = multiply(multiply(X2,inverse(X2)),X1),
    inference(step,[status(thm)],[t540,t336]) ).

cnf(t584,plain,
    multiply(multiply(X1,inverse(X1)),X2) = X2,
    inference(orient,[status(thm)],[t4733]) ).

cnf(t585,plain,
    multiply(X1,inverse(multiply(X2,inverse(X2)))) = X1,
    inference(cp,[status(thm)],[t584,t533]) ).

cnf(t4734,plain,
    multiply(X1,double_divide(inverse(X2),X2)) = X1,
    inference(step,[status(thm)],[t585,t237]) ).

cnf(t4735,plain,
    multiply(X1,multiply(X2,inverse(X2))) = X1,
    inference(step,[status(thm)],[t4734,t336]) ).

cnf(t600,plain,
    multiply(X1,multiply(X2,inverse(X2))) = X1,
    inference(orient,[status(thm)],[t4735]) ).

cnf(t607,plain,
    multiply(X1,inverse(X1)) = multiply(inverse(X2),X2),
    inference(cp,[status(thm)],[t515,t600]) ).

cnf(t4739,plain,
    multiply(X1,inverse(X1)) = multiply(X2,inverse(X2)),
    inference(step,[status(thm)],[t607,t494]) ).

cnf(t720,plain,
    multiply(X1,inverse(X1)) = multiply(X2,inverse(X2)),
    inference(orient,[status(thm)],[t4739]) ).

cnf(t4864,plain,
    ifeq(multiply(true,inverse(true)),multiply(inverse(b1),b1),ifeq(multiply(multiply(inverse(b2),b2),a2),a2,ifeq(multiply(multiply(a3,b3),c3),multiply(a3,multiply(b3,c3)),ifeq(multiply(a4,b4),multiply(b4,a4),false,true),true),true),true) = true,
    inference(step,[status(thm)],[t4863,t720]) ).

cnf(t4865,plain,
    ifeq(multiply(true,inverse(true)),multiply(b1,inverse(b1)),ifeq(multiply(multiply(inverse(b2),b2),a2),a2,ifeq(multiply(multiply(a3,b3),c3),multiply(a3,multiply(b3,c3)),ifeq(multiply(a4,b4),multiply(b4,a4),false,true),true),true),true) = true,
    inference(step,[status(thm)],[t4864,t494]) ).

cnf(t4866,plain,
    ifeq(multiply(true,inverse(true)),multiply(true,inverse(true)),ifeq(multiply(multiply(inverse(b2),b2),a2),a2,ifeq(multiply(multiply(a3,b3),c3),multiply(a3,multiply(b3,c3)),ifeq(multiply(a4,b4),multiply(b4,a4),false,true),true),true),true) = true,
    inference(step,[status(thm)],[t4865,t720]) ).

cnf(t0,plain,
    ifeq(X1,X1,X2,X3) = X2,
    introduced(definition) ).

cnf(t7,plain,
    ifeq(X1,X1,X2,X3) = X2,
    inference(orient,[status(thm)],[t0]) ).

cnf(t4867,plain,
    ifeq(multiply(multiply(inverse(b2),b2),a2),a2,ifeq(multiply(multiply(a3,b3),c3),multiply(a3,multiply(b3,c3)),ifeq(multiply(a4,b4),multiply(b4,a4),false,true),true),true) = true,
    inference(step,[status(thm)],[t4866,t7]) ).

cnf(t521,plain,
    multiply(X1,multiply(X2,X3)) = multiply(inverse(double_divide(X3,X1)),X2),
    inference(cp,[status(thm)],[t515,t11]) ).

cnf(t4738,plain,
    multiply(X1,multiply(X2,X3)) = multiply(multiply(X1,X3),X2),
    inference(step,[status(thm)],[t521,t8]) ).

cnf(t693,plain,
    multiply(multiply(X1,X2),X3) = multiply(X1,multiply(X3,X2)),
    inference(orient,[status(thm)],[t4738]) ).

cnf(t4868,plain,
    ifeq(multiply(inverse(b2),multiply(a2,b2)),a2,ifeq(multiply(multiply(a3,b3),c3),multiply(a3,multiply(b3,c3)),ifeq(multiply(a4,b4),multiply(b4,a4),false,true),true),true) = true,
    inference(step,[status(thm)],[t4867,t693]) ).

cnf(t305,plain,
    multiply(inverse(X1),multiply(X2,X3)) = double_divide(X1,double_divide(X3,X2)),
    inference(cp,[status(thm)],[t301,t237]) ).

cnf(t768,plain,
    multiply(inverse(X1),multiply(X2,X3)) = double_divide(X1,double_divide(X3,X2)),
    inference(orient,[status(thm)],[t305]) ).

cnf(t4869,plain,
    ifeq(double_divide(b2,double_divide(b2,a2)),a2,ifeq(multiply(multiply(a3,b3),c3),multiply(a3,multiply(b3,c3)),ifeq(multiply(a4,b4),multiply(b4,a4),false,true),true),true) = true,
    inference(step,[status(thm)],[t4868,t768]) ).

cnf(t4870,plain,
    ifeq(a2,a2,ifeq(multiply(multiply(a3,b3),c3),multiply(a3,multiply(b3,c3)),ifeq(multiply(a4,b4),multiply(b4,a4),false,true),true),true) = true,
    inference(step,[status(thm)],[t4869,t255]) ).

cnf(t4871,plain,
    ifeq(multiply(multiply(a3,b3),c3),multiply(a3,multiply(b3,c3)),ifeq(multiply(a4,b4),multiply(b4,a4),false,true),true) = true,
    inference(step,[status(thm)],[t4870,t7]) ).

cnf(t4872,plain,
    ifeq(multiply(a3,multiply(c3,b3)),multiply(a3,multiply(b3,c3)),ifeq(multiply(a4,b4),multiply(b4,a4),false,true),true) = true,
    inference(step,[status(thm)],[t4871,t693]) ).

cnf(t4873,plain,
    ifeq(multiply(a3,multiply(c3,b3)),multiply(a3,multiply(c3,b3)),ifeq(multiply(a4,b4),multiply(b4,a4),false,true),true) = true,
    inference(step,[status(thm)],[t4872,t494]) ).

cnf(t4874,plain,
    ifeq(multiply(a4,b4),multiply(b4,a4),false,true) = true,
    inference(step,[status(thm)],[t4873,t7]) ).

cnf(t4875,plain,
    ifeq(multiply(b4,a4),multiply(b4,a4),false,true) = true,
    inference(step,[status(thm)],[t4874,t494]) ).

cnf(t4876,plain,
    false = true,
    inference(step,[status(thm)],[t4875,t7]) ).

cnf(t4718,plain,
    false = true,
    inference(orient,[status(thm)],[t4876]) ).

cnf(goal_0,negated_conjecture,
    true != false,
    inference(equality_encoding,[status(esa)],[c2]) ).

cnf(g0_0,plain,
    true != true,
    inference(rw,[status(thm)],[goal_0,t4718]) ).

cnf(contradiction_0,plain,
    $false,
    inference(trivial_inequality_removal,[status(thm)],[g0_0]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02  % Problem  : GRP110-1 : TPTP v9.3.1. Bugfixed v2.7.0.
% 0.00/0.03  % Command  : run_findproof /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 0.09/0.36  % Computer : n019.cluster.edu
% 0.09/0.36  % Model    : x86_64 x86_64
% 0.09/0.36  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.36  % Memory   : 8046.5625MB
% 0.09/0.36  % OS       : Linux 6.8.0-71-generic
% 0.09/0.37  % CPULimit : 300
% 0.09/0.37  % WCLimit  : 300
% 0.09/0.37  % DateTime : Wed Sep 23 13:33:05 UTC 2026
% 0.09/0.37  % CPUTime  : 
% 0.09/0.37  Running run_findproof /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 8.43/1.54  % SZS status Unsatisfiable for /export/starexec/sandbox/benchmark/theBenchmark.p
% 8.43/1.54  % SZS output start Proof for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
%------------------------------------------------------------------------------