TSTP Solution File: GRP030-1 by Metis---2.4
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%------------------------------------------------------------------------------
% File : Metis---2.4
% Problem : GRP030-1 : TPTP v8.1.0. Released v1.0.0.
% Transfm : none
% Format : tptp:raw
% Command : metis --show proof --show saturation %s
% Computer : n023.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 : 600s
% DateTime : Sat Jul 16 10:32:33 EDT 2022
% Result : Unsatisfiable 0.20s 0.56s
% Output : CNFRefutation 0.20s
% Verified :
% SZS Type : Refutation
% Derivation depth : 10
% Number of leaves : 5
% Syntax : Number of clauses : 22 ( 12 unt; 0 nHn; 14 RR)
% Number of literals : 41 ( 0 equ; 20 neg)
% Maximal clause size : 4 ( 1 avg)
% Maximal term depth : 3 ( 1 avg)
% Number of predicates : 2 ( 1 usr; 1 prp; 0-3 aty)
% Number of functors : 3 ( 3 usr; 2 con; 0-1 aty)
% Number of variables : 38 ( 2 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(associativity1,axiom,
( ~ product(X,Y,U)
| ~ product(Y,Z,V)
| ~ product(U,Z,W)
| product(X,V,W) ) ).
cnf(associativity2,axiom,
( ~ product(X,Y,U)
| ~ product(Y,Z,V)
| ~ product(X,V,W)
| product(U,Z,W) ) ).
cnf(left_identity,hypothesis,
product(identity,A,A) ).
cnf(left_inverse,hypothesis,
product(inverse(A),A,identity) ).
cnf(prove_identity_is_a_right_identity,negated_conjecture,
~ product(a,identity,a) ).
cnf(refute_0_0,plain,
product(identity,identity,identity),
inference(subst,[],[left_identity:[bind(A,$fot(identity))]]) ).
cnf(refute_0_1,plain,
( ~ product(X_91,identity,X_90)
| ~ product(identity,identity,identity)
| product(X_90,identity,X_90) ),
inference(subst,[],[associativity2:[bind(U,$fot(X_90)),bind(V,$fot(identity)),bind(W,$fot(X_90)),bind(X,$fot(X_91)),bind(Y,$fot(identity)),bind(Z,$fot(identity))]]) ).
cnf(refute_0_2,plain,
( ~ product(X_91,identity,X_90)
| product(X_90,identity,X_90) ),
inference(resolve,[$cnf( product(identity,identity,identity) )],[refute_0_0,refute_0_1]) ).
cnf(refute_0_3,plain,
( ~ product(inverse(inverse(X_185)),identity,X_185)
| product(X_185,identity,X_185) ),
inference(subst,[],[refute_0_2:[bind(X_90,$fot(X_185)),bind(X_91,$fot(inverse(inverse(X_185))))]]) ).
cnf(refute_0_4,plain,
product(inverse(inverse(X_183)),inverse(X_183),identity),
inference(subst,[],[left_inverse:[bind(A,$fot(inverse(X_183)))]]) ).
cnf(refute_0_5,plain,
product(inverse(X_178),X_178,identity),
inference(subst,[],[left_inverse:[bind(A,$fot(X_178))]]) ).
cnf(refute_0_6,plain,
product(identity,X_173,X_173),
inference(subst,[],[left_identity:[bind(A,$fot(X_173))]]) ).
cnf(refute_0_7,plain,
( ~ product(X_174,X_175,identity)
| ~ product(X_175,X_173,X_172)
| ~ product(identity,X_173,X_173)
| product(X_174,X_172,X_173) ),
inference(subst,[],[associativity1:[bind(U,$fot(identity)),bind(V,$fot(X_172)),bind(W,$fot(X_173)),bind(X,$fot(X_174)),bind(Y,$fot(X_175)),bind(Z,$fot(X_173))]]) ).
cnf(refute_0_8,plain,
( ~ product(X_174,X_175,identity)
| ~ product(X_175,X_173,X_172)
| product(X_174,X_172,X_173) ),
inference(resolve,[$cnf( product(identity,X_173,X_173) )],[refute_0_6,refute_0_7]) ).
cnf(refute_0_9,plain,
( ~ product(X_179,inverse(X_178),identity)
| ~ product(inverse(X_178),X_178,identity)
| product(X_179,identity,X_178) ),
inference(subst,[],[refute_0_8:[bind(X_172,$fot(identity)),bind(X_173,$fot(X_178)),bind(X_174,$fot(X_179)),bind(X_175,$fot(inverse(X_178)))]]) ).
cnf(refute_0_10,plain,
( ~ product(X_179,inverse(X_178),identity)
| product(X_179,identity,X_178) ),
inference(resolve,[$cnf( product(inverse(X_178),X_178,identity) )],[refute_0_5,refute_0_9]) ).
cnf(refute_0_11,plain,
( ~ product(inverse(inverse(X_183)),inverse(X_183),identity)
| product(inverse(inverse(X_183)),identity,X_183) ),
inference(subst,[],[refute_0_10:[bind(X_178,$fot(X_183)),bind(X_179,$fot(inverse(inverse(X_183))))]]) ).
cnf(refute_0_12,plain,
product(inverse(inverse(X_183)),identity,X_183),
inference(resolve,[$cnf( product(inverse(inverse(X_183)),inverse(X_183),identity) )],[refute_0_4,refute_0_11]) ).
cnf(refute_0_13,plain,
product(inverse(inverse(X_185)),identity,X_185),
inference(subst,[],[refute_0_12:[bind(X_183,$fot(X_185))]]) ).
cnf(refute_0_14,plain,
product(X_185,identity,X_185),
inference(resolve,[$cnf( product(inverse(inverse(X_185)),identity,X_185) )],[refute_0_13,refute_0_3]) ).
cnf(refute_0_15,plain,
product(a,identity,a),
inference(subst,[],[refute_0_14:[bind(X_185,$fot(a))]]) ).
cnf(refute_0_16,plain,
$false,
inference(resolve,[$cnf( product(a,identity,a) )],[refute_0_15,prove_identity_is_a_right_identity]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.08/0.12 % Problem : GRP030-1 : TPTP v8.1.0. Released v1.0.0.
% 0.08/0.13 % Command : metis --show proof --show saturation %s
% 0.12/0.34 % Computer : n023.cluster.edu
% 0.12/0.34 % Model : x86_64 x86_64
% 0.12/0.34 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.34 % Memory : 8042.1875MB
% 0.12/0.34 % OS : Linux 3.10.0-693.el7.x86_64
% 0.12/0.34 % CPULimit : 300
% 0.12/0.34 % WCLimit : 600
% 0.12/0.34 % DateTime : Tue Jun 14 02:33:36 EDT 2022
% 0.12/0.34 % CPUTime :
% 0.12/0.34 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 0.20/0.56 % SZS status Unsatisfiable for /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.20/0.56
% 0.20/0.56 % SZS output start CNFRefutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 0.20/0.56
%------------------------------------------------------------------------------