%------------------------------------------------------------------------------
% File : Toma---0.7
% Problem : GRP001-4 : TPTP v9.0.0. Released v1.0.0.
% Transfm : none
% Format : tptp:raw
% Command : run_Leo-III %s %d THM
% Computer : n012.cluster.edu
% Model : x86_64 x86_64
% CPU : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory : 8042.1875MB
% OS : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit : 300s
% DateTime : Tue Jul 15 06:43:15 AM UTC 2025
% Result : Unsatisfiable 0.17s 0.43s
% Output : CNFRefutation 0.17s
% Verified :
% SZS Type : Refutation
% Derivation depth : 6
% Number of leaves : 5
% Syntax : Number of clauses : 13 ( 13 unt; 0 nHn; 5 RR)
% Number of literals : 13 ( 12 equ; 1 neg)
% Maximal clause size : 1 ( 1 avg)
% Maximal term depth : 4 ( 1 avg)
% Number of predicates : 2 ( 0 usr; 1 prp; 0-2 aty)
% Number of functors : 5 ( 5 usr; 4 con; 0-2 aty)
% Number of variables : 14 ( 0 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(g0,negated_conjecture,
multiply(b,a) != c,
file('theBenchmark.p',prove_b_times_a_is_c) ).
cnf(c1,axiom,
multiply(X,X) = identity,
file('theBenchmark.p',squareness) ).
cnf(c2,axiom,
multiply(identity,X) = X,
file('theBenchmark.p',left_identity) ).
cnf(c3,axiom,
multiply(a,b) = c,
file('theBenchmark.p',a_times_b_is_c) ).
cnf(c4,plain,
c = multiply(a,b),
inference(equational,[status(thm)],[c3]) ).
cnf(c5,axiom,
multiply(multiply(X,Y),Z) = multiply(X,multiply(Y,Z)),
file('theBenchmark.p',associativity) ).
cnf(c6,plain,
multiply(X,multiply(X,Y)) = Y,
inference(equational,[status(thm)],[c1,c2,c5]) ).
cnf(c7,plain,
multiply(X,identity) = X,
inference(equational,[status(thm)],[c1,c6]) ).
cnf(c8,plain,
multiply(X,multiply(Y,multiply(X,Y))) = identity,
inference(equational,[status(thm)],[c1,c5]) ).
cnf(c9,plain,
multiply(X,multiply(Y,X)) = Y,
inference(equational,[status(thm)],[c6,c7,c8]) ).
cnf(c10,plain,
multiply(X,Y) = multiply(Y,X),
inference(equational,[status(thm)],[c6,c9]) ).
cnf(g1,plain,
multiply(b,a) = c,
inference(equational,[status(thm)],[c4,c10]) ).
cnf(g2,plain,
$false,
inference(resolution,[status(thm)],[g0,g1]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.04/0.11 % Problem : GRP001-4 : TPTP v9.0.0. Released v1.0.0.
% 0.04/0.11 % Command : run_Leo-III %s %d THM
% 0.12/0.31 % Computer : n012.cluster.edu
% 0.12/0.31 % Model : x86_64 x86_64
% 0.12/0.31 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.31 % Memory : 8042.1875MB
% 0.12/0.31 % OS : Linux 3.10.0-693.el7.x86_64
% 0.12/0.31 % CPULimit : 300
% 0.12/0.31 % WCLimit : 300
% 0.12/0.31 % DateTime : Mon Jul 14 08:04:19 EDT 2025
% 0.12/0.31 % CPUTime :
% 0.17/0.43 % SZS status Unsatisfiable
% 0.17/0.43 % SZS output start CNFRefutation
% See solution above
%------------------------------------------------------------------------------