TSTP Solution File: GRP009-1 by Faust---1.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Faust---1.0
% Problem  : GRP009-1 : TPTP v3.4.2. Released v1.0.0.
% Transfm  : none
% Format   : tptp
% Command  : faust %s

% Computer : art07.cs.miami.edu
% Model    : i686 i686
% CPU      : Intel(R) Pentium(R) 4 CPU 2.80GHz @ 2794MHz
% Memory   : 1003MB
% OS       : Linux 2.6.11-1.1369_FC4
% CPULimit : 600s
% DateTime : Wed May  6 12:17:38 EDT 2009

% Result   : Unsatisfiable 7.9s
% Output   : Refutation 7.9s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    7
%            Number of leaves      :   10
% Syntax   : Number of formulae    :   33 (  20 unt;   0 def)
%            Number of atoms       :   59 (   0 equ)
%            Maximal formula atoms :    4 (   1 avg)
%            Number of connectives :   58 (  32   ~;  26   |;   0   &)
%                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   11 (   3 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    3 (   1 usr;   1 prp; 0-3 aty)
%            Number of functors    :    6 (   6 usr;   4 con; 0-2 aty)
%            Number of variables   :   62 (   1 sgn  21   !;   0   ?)

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Faust---1.0 format not known, defaulting to TPTP
fof(left_inverse,plain,
    ! [A] : product(inverse(A),A,identity),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP009-1.tptp',unknown),
    [] ).

cnf(169734608,plain,
    product(inverse(A),A,identity),
    inference(rewrite,[status(thm)],[left_inverse]),
    [] ).

fof(c_is_an_inverse_of_b,plain,
    product(c,b,identity),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP009-1.tptp',unknown),
    [] ).

cnf(169724320,plain,
    product(c,b,identity),
    inference(rewrite,[status(thm)],[c_is_an_inverse_of_b]),
    [] ).

fof(associativity1,plain,
    ! [A,B,C,D,E,F] :
      ( ~ product(A,B,C)
      | ~ product(B,D,E)
      | ~ product(C,D,F)
      | product(A,E,F) ),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP009-1.tptp',unknown),
    [] ).

cnf(169760072,plain,
    ( ~ product(A,B,C)
    | ~ product(B,D,E)
    | ~ product(C,D,F)
    | product(A,E,F) ),
    inference(rewrite,[status(thm)],[associativity1]),
    [] ).

fof(left_identity,plain,
    ! [A] : product(identity,A,A),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP009-1.tptp',unknown),
    [] ).

cnf(169726856,plain,
    product(identity,A,A),
    inference(rewrite,[status(thm)],[left_identity]),
    [] ).

cnf(177630168,plain,
    ( ~ product(A,B,identity)
    | ~ product(B,C,D)
    | product(A,D,C) ),
    inference(resolution,[status(thm)],[169760072,169726856]),
    [] ).

cnf(198748264,plain,
    ( ~ product(A,c,identity)
    | product(A,identity,b) ),
    inference(resolution,[status(thm)],[169724320,177630168]),
    [] ).

fof(total_function2,plain,
    ! [A,B,C,D] :
      ( ~ product(A,B,C)
      | ~ product(A,B,D)
      | $equal(D,C) ),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP009-1.tptp',unknown),
    [] ).

cnf(169753304,plain,
    ( ~ product(A,B,C)
    | ~ product(A,B,D)
    | $equal(D,C) ),
    inference(rewrite,[status(thm)],[total_function2]),
    [] ).

fof(a_is_an_inverse_of_b,plain,
    product(a,b,identity),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP009-1.tptp',unknown),
    [] ).

cnf(169771744,plain,
    product(a,b,identity),
    inference(rewrite,[status(thm)],[a_is_an_inverse_of_b]),
    [] ).

cnf(178386648,plain,
    ( ~ product(a,b,A)
    | $equal(A,identity) ),
    inference(resolution,[status(thm)],[169753304,169771744]),
    [] ).

fof(total_function1,plain,
    ! [A,B] : product(A,B,multiply(A,B)),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP009-1.tptp',unknown),
    [] ).

cnf(169742000,plain,
    product(A,B,multiply(A,B)),
    inference(rewrite,[status(thm)],[total_function1]),
    [] ).

cnf(182297312,plain,
    $equal(multiply(a,b),identity),
    inference(resolution,[status(thm)],[178386648,169742000]),
    [] ).

cnf(177563296,plain,
    ( ~ product(identity,A,B)
    | $equal(A,B) ),
    inference(resolution,[status(thm)],[169753304,169726856]),
    [] ).

fof(prove_a_equals_c,plain,
    ~ $equal(c,a),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP009-1.tptp',unknown),
    [] ).

cnf(169780136,plain,
    ~ $equal(c,a),
    inference(rewrite,[status(thm)],[prove_a_equals_c]),
    [] ).

cnf(178814320,plain,
    ~ product(identity,c,a),
    inference(resolution,[status(thm)],[177563296,169780136]),
    [] ).

cnf(182593552,plain,
    ~ product(multiply(a,b),c,a),
    inference(paramodulation,[status(thm)],[182297312,178814320,theory(equality)]),
    [] ).

fof(associativity2,plain,
    ! [A,B,C,D,E,F] :
      ( ~ product(A,B,C)
      | ~ product(B,D,E)
      | ~ product(A,E,F)
      | product(C,D,F) ),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP009-1.tptp',unknown),
    [] ).

cnf(169768480,plain,
    ( ~ product(A,B,C)
    | ~ product(B,D,E)
    | ~ product(A,E,F)
    | product(C,D,F) ),
    inference(rewrite,[status(thm)],[associativity2]),
    [] ).

fof(right_identity,plain,
    ! [A] : product(A,identity,A),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP009-1.tptp',unknown),
    [] ).

cnf(169730960,plain,
    product(A,identity,A),
    inference(rewrite,[status(thm)],[right_identity]),
    [] ).

cnf(177720952,plain,
    ( ~ product(A,B,C)
    | ~ product(B,D,identity)
    | product(C,D,A) ),
    inference(resolution,[status(thm)],[169768480,169730960]),
    [] ).

cnf(178095720,plain,
    ( ~ product(B,C,identity)
    | product(multiply(A,B),C,A) ),
    inference(resolution,[status(thm)],[177720952,169742000]),
    [] ).

cnf(226096000,plain,
    ~ product(b,c,identity),
    inference(resolution,[status(thm)],[182593552,178095720]),
    [] ).

cnf(177640016,plain,
    ( ~ product(A,identity,B)
    | ~ product(A,C,D)
    | product(B,C,D) ),
    inference(resolution,[status(thm)],[169768480,169726856]),
    [] ).

cnf(244107648,plain,
    ~ product(A,c,identity),
    inference(forward_subsumption_resolution__resolution,[status(thm)],[198748264,226096000,177640016]),
    [] ).

cnf(contradiction,plain,
    $false,
    inference(resolution,[status(thm)],[169734608,244107648]),
    [] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% Proof found in: 7 seconds
% START OF PROOF SEQUENCE
% fof(left_inverse,plain,(product(inverse(A),A,identity)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP009-1.tptp',unknown),[]).
% 
% cnf(169734608,plain,(product(inverse(A),A,identity)),inference(rewrite,[status(thm)],[left_inverse]),[]).
% 
% fof(c_is_an_inverse_of_b,plain,(product(c,b,identity)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP009-1.tptp',unknown),[]).
% 
% cnf(169724320,plain,(product(c,b,identity)),inference(rewrite,[status(thm)],[c_is_an_inverse_of_b]),[]).
% 
% fof(associativity1,plain,(~product(A,B,C)|~product(B,D,E)|~product(C,D,F)|product(A,E,F)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP009-1.tptp',unknown),[]).
% 
% cnf(169760072,plain,(~product(A,B,C)|~product(B,D,E)|~product(C,D,F)|product(A,E,F)),inference(rewrite,[status(thm)],[associativity1]),[]).
% 
% fof(left_identity,plain,(product(identity,A,A)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP009-1.tptp',unknown),[]).
% 
% cnf(169726856,plain,(product(identity,A,A)),inference(rewrite,[status(thm)],[left_identity]),[]).
% 
% cnf(177630168,plain,(~product(A,B,identity)|~product(B,C,D)|product(A,D,C)),inference(resolution,[status(thm)],[169760072,169726856]),[]).
% 
% cnf(198748264,plain,(~product(A,c,identity)|product(A,identity,b)),inference(resolution,[status(thm)],[169724320,177630168]),[]).
% 
% fof(total_function2,plain,(~product(A,B,C)|~product(A,B,D)|$equal(D,C)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP009-1.tptp',unknown),[]).
% 
% cnf(169753304,plain,(~product(A,B,C)|~product(A,B,D)|$equal(D,C)),inference(rewrite,[status(thm)],[total_function2]),[]).
% 
% fof(a_is_an_inverse_of_b,plain,(product(a,b,identity)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP009-1.tptp',unknown),[]).
% 
% cnf(169771744,plain,(product(a,b,identity)),inference(rewrite,[status(thm)],[a_is_an_inverse_of_b]),[]).
% 
% cnf(178386648,plain,(~product(a,b,A)|$equal(A,identity)),inference(resolution,[status(thm)],[169753304,169771744]),[]).
% 
% fof(total_function1,plain,(product(A,B,multiply(A,B))),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP009-1.tptp',unknown),[]).
% 
% cnf(169742000,plain,(product(A,B,multiply(A,B))),inference(rewrite,[status(thm)],[total_function1]),[]).
% 
% cnf(182297312,plain,($equal(multiply(a,b),identity)),inference(resolution,[status(thm)],[178386648,169742000]),[]).
% 
% cnf(177563296,plain,(~product(identity,A,B)|$equal(A,B)),inference(resolution,[status(thm)],[169753304,169726856]),[]).
% 
% fof(prove_a_equals_c,plain,(~$equal(c,a)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP009-1.tptp',unknown),[]).
% 
% cnf(169780136,plain,(~$equal(c,a)),inference(rewrite,[status(thm)],[prove_a_equals_c]),[]).
% 
% cnf(178814320,plain,(~product(identity,c,a)),inference(resolution,[status(thm)],[177563296,169780136]),[]).
% 
% cnf(182593552,plain,(~product(multiply(a,b),c,a)),inference(paramodulation,[status(thm)],[182297312,178814320,theory(equality)]),[]).
% 
% fof(associativity2,plain,(~product(A,B,C)|~product(B,D,E)|~product(A,E,F)|product(C,D,F)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP009-1.tptp',unknown),[]).
% 
% cnf(169768480,plain,(~product(A,B,C)|~product(B,D,E)|~product(A,E,F)|product(C,D,F)),inference(rewrite,[status(thm)],[associativity2]),[]).
% 
% fof(right_identity,plain,(product(A,identity,A)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP009-1.tptp',unknown),[]).
% 
% cnf(169730960,plain,(product(A,identity,A)),inference(rewrite,[status(thm)],[right_identity]),[]).
% 
% cnf(177720952,plain,(~product(A,B,C)|~product(B,D,identity)|product(C,D,A)),inference(resolution,[status(thm)],[169768480,169730960]),[]).
% 
% cnf(178095720,plain,(~product(B,C,identity)|product(multiply(A,B),C,A)),inference(resolution,[status(thm)],[177720952,169742000]),[]).
% 
% cnf(226096000,plain,(~product(b,c,identity)),inference(resolution,[status(thm)],[182593552,178095720]),[]).
% 
% cnf(177640016,plain,(~product(A,identity,B)|~product(A,C,D)|product(B,C,D)),inference(resolution,[status(thm)],[169768480,169726856]),[]).
% 
% cnf(244107648,plain,(~product(A,c,identity)),inference(forward_subsumption_resolution__resolution,[status(thm)],[198748264,226096000,177640016]),[]).
% 
% cnf(contradiction,plain,$false,inference(resolution,[status(thm)],[169734608,244107648]),[]).
% 
% END OF PROOF SEQUENCE
% 
%------------------------------------------------------------------------------