TSTP Solution File: GRP029-2 by Faust---1.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Faust---1.0
% Problem  : GRP029-2 : TPTP v3.4.2. Released v1.0.0.
% Transfm  : none
% Format   : tptp
% Command  : faust %s

% Computer : art01.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 12:18:43 EDT 2009

% Result   : Unsatisfiable 0.5s
% Output   : Refutation 0.5s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    7
%            Number of leaves      :    5
% Syntax   : Number of formulae    :   19 (  10 unt;   0 def)
%            Number of atoms       :   38 (   0 equ)
%            Maximal formula atoms :    4 (   2 avg)
%            Number of connectives :   40 (  21   ~;  19   |;   0   &)
%                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   11 (   3 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    2 (   1 usr;   1 prp; 0-3 aty)
%            Number of functors    :    3 (   3 usr;   1 con; 0-1 aty)
%            Number of variables   :   48 (   0 sgn  15   !;   0   ?)

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Faust---1.0 format not known, defaulting to TPTP
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/GRP029-2.tptp',unknown),
    [] ).

cnf(168917896,plain,
    ( ~ product(A,B,C)
    | ~ product(B,D,E)
    | ~ product(A,E,F)
    | product(C,D,F) ),
    inference(rewrite,[status(thm)],[associativity2]),
    [] ).

fof(left_identity,plain,
    ! [A] : product(identity,A,A),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP029-2.tptp',unknown),
    [] ).

cnf(168921160,plain,
    product(identity,A,A),
    inference(rewrite,[status(thm)],[left_identity]),
    [] ).

cnf(176818360,plain,
    ( ~ product(A,identity,B)
    | ~ product(A,C,D)
    | product(B,C,D) ),
    inference(resolution,[status(thm)],[168917896,168921160]),
    [] ).

fof(left_inverse,plain,
    ! [A] : product(inverse(A),A,identity),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP029-2.tptp',unknown),
    [] ).

cnf(168929032,plain,
    product(inverse(A),A,identity),
    inference(rewrite,[status(thm)],[left_inverse]),
    [] ).

cnf(176956160,plain,
    ( ~ product(inverse(B),identity,A)
    | product(A,B,identity) ),
    inference(resolution,[status(thm)],[176818360,168929032]),
    [] ).

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/GRP029-2.tptp',unknown),
    [] ).

cnf(168913640,plain,
    ( ~ product(A,B,C)
    | ~ product(B,D,E)
    | ~ product(C,D,F)
    | product(A,E,F) ),
    inference(rewrite,[status(thm)],[associativity1]),
    [] ).

cnf(176808512,plain,
    ( ~ product(A,B,identity)
    | ~ product(B,C,D)
    | product(A,D,C) ),
    inference(resolution,[status(thm)],[168913640,168921160]),
    [] ).

cnf(176842680,plain,
    ( ~ product(A,B,C)
    | product(inverse(A),C,B) ),
    inference(resolution,[status(thm)],[176808512,168929032]),
    [] ).

cnf(178053312,plain,
    product(inverse(inverse(A)),identity,A),
    inference(resolution,[status(thm)],[176842680,168929032]),
    [] ).

cnf(187997312,plain,
    product(A,inverse(A),identity),
    inference(resolution,[status(thm)],[176956160,178053312]),
    [] ).

cnf(176858824,plain,
    ( ~ product(A,inverse(B),identity)
    | product(A,identity,B) ),
    inference(resolution,[status(thm)],[176808512,168929032]),
    [] ).

cnf(188204576,plain,
    product(A,identity,A),
    inference(resolution,[status(thm)],[187997312,176858824]),
    [] ).

fof(prove_there_is_a_right_identity,plain,
    ! [A] : ~ product(not_right_identity(A),A,not_right_identity(A)),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP029-2.tptp',unknown),
    [] ).

cnf(168932752,plain,
    ~ product(not_right_identity(A),A,not_right_identity(A)),
    inference(rewrite,[status(thm)],[prove_there_is_a_right_identity]),
    [] ).

cnf(contradiction,plain,
    $false,
    inference(resolution,[status(thm)],[188204576,168932752]),
    [] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% Proof found in: 1 seconds
% START OF PROOF SEQUENCE
% 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/GRP029-2.tptp',unknown),[]).
% 
% cnf(168917896,plain,(~product(A,B,C)|~product(B,D,E)|~product(A,E,F)|product(C,D,F)),inference(rewrite,[status(thm)],[associativity2]),[]).
% 
% fof(left_identity,plain,(product(identity,A,A)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP029-2.tptp',unknown),[]).
% 
% cnf(168921160,plain,(product(identity,A,A)),inference(rewrite,[status(thm)],[left_identity]),[]).
% 
% cnf(176818360,plain,(~product(A,identity,B)|~product(A,C,D)|product(B,C,D)),inference(resolution,[status(thm)],[168917896,168921160]),[]).
% 
% fof(left_inverse,plain,(product(inverse(A),A,identity)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP029-2.tptp',unknown),[]).
% 
% cnf(168929032,plain,(product(inverse(A),A,identity)),inference(rewrite,[status(thm)],[left_inverse]),[]).
% 
% cnf(176956160,plain,(~product(inverse(B),identity,A)|product(A,B,identity)),inference(resolution,[status(thm)],[176818360,168929032]),[]).
% 
% 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/GRP029-2.tptp',unknown),[]).
% 
% cnf(168913640,plain,(~product(A,B,C)|~product(B,D,E)|~product(C,D,F)|product(A,E,F)),inference(rewrite,[status(thm)],[associativity1]),[]).
% 
% cnf(176808512,plain,(~product(A,B,identity)|~product(B,C,D)|product(A,D,C)),inference(resolution,[status(thm)],[168913640,168921160]),[]).
% 
% cnf(176842680,plain,(~product(A,B,C)|product(inverse(A),C,B)),inference(resolution,[status(thm)],[176808512,168929032]),[]).
% 
% cnf(178053312,plain,(product(inverse(inverse(A)),identity,A)),inference(resolution,[status(thm)],[176842680,168929032]),[]).
% 
% cnf(187997312,plain,(product(A,inverse(A),identity)),inference(resolution,[status(thm)],[176956160,178053312]),[]).
% 
% cnf(176858824,plain,(~product(A,inverse(B),identity)|product(A,identity,B)),inference(resolution,[status(thm)],[176808512,168929032]),[]).
% 
% cnf(188204576,plain,(product(A,identity,A)),inference(resolution,[status(thm)],[187997312,176858824]),[]).
% 
% fof(prove_there_is_a_right_identity,plain,(~product(not_right_identity(A),A,not_right_identity(A))),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP029-2.tptp',unknown),[]).
% 
% cnf(168932752,plain,(~product(not_right_identity(A),A,not_right_identity(A))),inference(rewrite,[status(thm)],[prove_there_is_a_right_identity]),[]).
% 
% cnf(contradiction,plain,$false,inference(resolution,[status(thm)],[188204576,168932752]),[]).
% 
% END OF PROOF SEQUENCE
% 
%------------------------------------------------------------------------------