TSTP Solution File: MSC005-1 by Faust---1.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Faust---1.0
% Problem  : MSC005-1 : TPTP v3.4.2. Released v1.0.0.
% Transfm  : none
% Format   : tptp
% Command  : faust %s

% Computer : art10.cs.miami.edu
% Model    : i686 i686
% CPU      : Intel(R) Pentium(R) 4 CPU 2.80GHz @ 2793MHz
% Memory   : 1003MB
% OS       : Linux 2.6.17-1.2142_FC4
% CPULimit : 600s
% DateTime : Wed May  6 14:05:16 EDT 2009

% Result   : Unsatisfiable 0.1s
% Output   : Refutation 0.1s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    5
%            Number of leaves      :    6
% Syntax   : Number of formulae    :   18 (  10 unt;   0 def)
%            Number of atoms       :   32 (   0 equ)
%            Maximal formula atoms :    3 (   1 avg)
%            Number of connectives :   31 (  17   ~;  14   |;   0   &)
%                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    6 (   3 avg)
%            Maximal term depth    :    5 (   1 avg)
%            Number of predicates  :    2 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    3 (   3 usr;   2 con; 0-2 aty)
%            Number of variables   :   16 (   1 sgn   7   !;   0   ?)

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Faust---1.0 format not known, defaulting to TPTP
fof(true_xor_false,plain,
    ! [A,B] :
      ( ~ value(A,truth)
      | ~ value(B,falsity)
      | value(xor(A,B),truth) ),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/MSC/MSC005-1.tptp',unknown),
    [] ).

cnf(154885656,plain,
    ( ~ value(A,truth)
    | ~ value(B,falsity)
    | value(xor(A,B),truth) ),
    inference(rewrite,[status(thm)],[true_xor_false]),
    [] ).

fof(false_is_false,plain,
    value(falsity,falsity),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/MSC/MSC005-1.tptp',unknown),
    [] ).

cnf(154871720,plain,
    value(falsity,falsity),
    inference(rewrite,[status(thm)],[false_is_false]),
    [] ).

cnf(162733928,plain,
    ( ~ value(A,truth)
    | value(xor(A,falsity),truth) ),
    inference(resolution,[status(thm)],[154885656,154871720]),
    [] ).

fof(true_is_true,plain,
    value(truth,truth),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/MSC/MSC005-1.tptp',unknown),
    [] ).

cnf(154867912,plain,
    value(truth,truth),
    inference(rewrite,[status(thm)],[true_is_true]),
    [] ).

cnf(162747360,plain,
    value(xor(truth,falsity),truth),
    inference(resolution,[status(thm)],[162733928,154867912]),
    [] ).

cnf(163423896,plain,
    value(xor(xor(truth,falsity),falsity),truth),
    inference(resolution,[status(thm)],[162733928,162747360]),
    [] ).

fof(false_xor_false,plain,
    ! [A,B] :
      ( ~ value(A,falsity)
      | ~ value(B,falsity)
      | value(xor(A,B),falsity) ),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/MSC/MSC005-1.tptp',unknown),
    [] ).

cnf(154898040,plain,
    ( ~ value(A,falsity)
    | ~ value(B,falsity)
    | value(xor(A,B),falsity) ),
    inference(rewrite,[status(thm)],[false_xor_false]),
    [] ).

fof(evaluate_expression,plain,
    ! [A] : ~ value(xor(xor(xor(xor(truth,falsity),falsity),truth),falsity),A),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/MSC/MSC005-1.tptp',unknown),
    [] ).

cnf(154901808,plain,
    ~ value(xor(xor(xor(xor(truth,falsity),falsity),truth),falsity),A),
    inference(rewrite,[status(thm)],[evaluate_expression]),
    [] ).

cnf(162979864,plain,
    ~ value(xor(xor(xor(truth,falsity),falsity),truth),falsity),
    inference(forward_subsumption_resolution__resolution,[status(thm)],[154871720,154898040,154901808]),
    [] ).

fof(true_xor_true,plain,
    ! [A,B] :
      ( ~ value(A,truth)
      | ~ value(B,truth)
      | value(xor(A,B),falsity) ),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/MSC/MSC005-1.tptp',unknown),
    [] ).

cnf(154879800,plain,
    ( ~ value(A,truth)
    | ~ value(B,truth)
    | value(xor(A,B),falsity) ),
    inference(rewrite,[status(thm)],[true_xor_true]),
    [] ).

cnf(162699344,plain,
    ( ~ value(A,truth)
    | value(xor(A,truth),falsity) ),
    inference(resolution,[status(thm)],[154879800,154867912]),
    [] ).

cnf(contradiction,plain,
    $false,
    inference(forward_subsumption_resolution__resolution,[status(thm)],[163423896,162979864,162699344]),
    [] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% Proof found in: 0 seconds
% START OF PROOF SEQUENCE
% fof(true_xor_false,plain,(~value(A,truth)|~value(B,falsity)|value(xor(A,B),truth)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/MSC/MSC005-1.tptp',unknown),[]).
% 
% cnf(154885656,plain,(~value(A,truth)|~value(B,falsity)|value(xor(A,B),truth)),inference(rewrite,[status(thm)],[true_xor_false]),[]).
% 
% fof(false_is_false,plain,(value(falsity,falsity)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/MSC/MSC005-1.tptp',unknown),[]).
% 
% cnf(154871720,plain,(value(falsity,falsity)),inference(rewrite,[status(thm)],[false_is_false]),[]).
% 
% cnf(162733928,plain,(~value(A,truth)|value(xor(A,falsity),truth)),inference(resolution,[status(thm)],[154885656,154871720]),[]).
% 
% fof(true_is_true,plain,(value(truth,truth)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/MSC/MSC005-1.tptp',unknown),[]).
% 
% cnf(154867912,plain,(value(truth,truth)),inference(rewrite,[status(thm)],[true_is_true]),[]).
% 
% cnf(162747360,plain,(value(xor(truth,falsity),truth)),inference(resolution,[status(thm)],[162733928,154867912]),[]).
% 
% cnf(163423896,plain,(value(xor(xor(truth,falsity),falsity),truth)),inference(resolution,[status(thm)],[162733928,162747360]),[]).
% 
% fof(false_xor_false,plain,(~value(A,falsity)|~value(B,falsity)|value(xor(A,B),falsity)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/MSC/MSC005-1.tptp',unknown),[]).
% 
% cnf(154898040,plain,(~value(A,falsity)|~value(B,falsity)|value(xor(A,B),falsity)),inference(rewrite,[status(thm)],[false_xor_false]),[]).
% 
% fof(evaluate_expression,plain,(~value(xor(xor(xor(xor(truth,falsity),falsity),truth),falsity),A)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/MSC/MSC005-1.tptp',unknown),[]).
% 
% cnf(154901808,plain,(~value(xor(xor(xor(xor(truth,falsity),falsity),truth),falsity),A)),inference(rewrite,[status(thm)],[evaluate_expression]),[]).
% 
% cnf(162979864,plain,(~value(xor(xor(xor(truth,falsity),falsity),truth),falsity)),inference(forward_subsumption_resolution__resolution,[status(thm)],[154871720,154898040,154901808]),[]).
% 
% fof(true_xor_true,plain,(~value(A,truth)|~value(B,truth)|value(xor(A,B),falsity)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/MSC/MSC005-1.tptp',unknown),[]).
% 
% cnf(154879800,plain,(~value(A,truth)|~value(B,truth)|value(xor(A,B),falsity)),inference(rewrite,[status(thm)],[true_xor_true]),[]).
% 
% cnf(162699344,plain,(~value(A,truth)|value(xor(A,truth),falsity)),inference(resolution,[status(thm)],[154879800,154867912]),[]).
% 
% cnf(contradiction,plain,$false,inference(forward_subsumption_resolution__resolution,[status(thm)],[163423896,162979864,162699344]),[]).
% 
% END OF PROOF SEQUENCE
% 
%------------------------------------------------------------------------------