TSTP Solution File: PUZ023-1 by Faust---1.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Faust---1.0
% Problem  : PUZ023-1 : TPTP v3.4.2. Released v1.0.0.
% Transfm  : none
% Format   : tptp
% Command  : faust %s

% Computer : art08.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 15:11:21 EDT 2009

% Result   : Unsatisfiable 0.1s
% Output   : Refutation 0.1s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    8
%            Number of leaves      :    6
% Syntax   : Number of formulae    :   21 (   6 unt;   0 def)
%            Number of atoms       :   44 (   0 equ)
%            Maximal formula atoms :    3 (   2 avg)
%            Number of connectives :   48 (  25   ~;  23   |;   0   &)
%                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    4 (   3 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    3 (   2 usr;   1 prp; 0-1 aty)
%            Number of functors    :    8 (   8 usr;   6 con; 0-1 aty)
%            Number of variables   :    4 (   1 sgn   2   !;   0   ?)

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Faust---1.0 format not known, defaulting to TPTP
fof(b_and_c_liars,plain,
    ( ~ a_truth(liar(b))
    | ~ a_truth(liar(c))
    | an_answer(b_and_c_liars) ),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/PUZ/PUZ023-1.tptp',unknown),
    [] ).

cnf(152181592,plain,
    ( ~ a_truth(liar(b))
    | ~ a_truth(liar(c))
    | an_answer(b_and_c_liars) ),
    inference(rewrite,[status(thm)],[b_and_c_liars]),
    [] ).

fof(prove_there_is_an_answer,plain,
    ! [A] : ~ an_answer(A),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/PUZ/PUZ023-1.tptp',unknown),
    [] ).

cnf(152334600,plain,
    ~ an_answer(A),
    inference(rewrite,[status(thm)],[prove_there_is_an_answer]),
    [] ).

cnf(160146056,plain,
    ( ~ a_truth(liar(b))
    | ~ a_truth(liar(c)) ),
    inference(resolution,[status(thm)],[152181592,152334600]),
    [] ).

fof(truthteller_or_liar,plain,
    ! [A] :
      ( a_truth(truthteller(A))
      | a_truth(liar(A)) ),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/PUZ/PUZ023-1.tptp',unknown),
    [] ).

cnf(152186328,plain,
    ( a_truth(truthteller(A))
    | a_truth(liar(A)) ),
    inference(rewrite,[status(thm)],[truthteller_or_liar]),
    [] ).

cnf(160331848,plain,
    ( ~ a_truth(liar(c))
    | a_truth(truthteller(b)) ),
    inference(resolution,[status(thm)],[160146056,152186328]),
    [] ).

cnf(160349056,plain,
    ( a_truth(truthteller(b))
    | a_truth(truthteller(c)) ),
    inference(resolution,[status(thm)],[160331848,152186328]),
    [] ).

fof(b_truthteller_and_c_liar,plain,
    ( ~ a_truth(truthteller(b))
    | ~ a_truth(liar(c))
    | an_answer(b_truthteller_and_c_liar) ),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/PUZ/PUZ023-1.tptp',unknown),
    [] ).

cnf(152320208,plain,
    ( ~ a_truth(truthteller(b))
    | ~ a_truth(liar(c))
    | an_answer(b_truthteller_and_c_liar) ),
    inference(rewrite,[status(thm)],[b_truthteller_and_c_liar]),
    [] ).

cnf(160163320,plain,
    ( ~ a_truth(truthteller(b))
    | ~ a_truth(liar(c)) ),
    inference(resolution,[status(thm)],[152320208,152334600]),
    [] ).

cnf(160372072,plain,
    a_truth(truthteller(c)),
    inference(forward_subsumption_resolution__resolution,[status(thm)],[160349056,160163320,152186328]),
    [] ).

fof(b_and_c_truthtellers,plain,
    ( ~ a_truth(truthteller(b))
    | ~ a_truth(truthteller(c))
    | an_answer(b_and_c_truthtellers) ),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/PUZ/PUZ023-1.tptp',unknown),
    [] ).

cnf(152329944,plain,
    ( ~ a_truth(truthteller(b))
    | ~ a_truth(truthteller(c))
    | an_answer(b_and_c_truthtellers) ),
    inference(rewrite,[status(thm)],[b_and_c_truthtellers]),
    [] ).

cnf(160167528,plain,
    ( ~ a_truth(truthteller(b))
    | ~ a_truth(truthteller(c)) ),
    inference(resolution,[status(thm)],[152329944,152334600]),
    [] ).

cnf(160415232,plain,
    a_truth(liar(b)),
    inference(forward_subsumption_resolution__resolution,[status(thm)],[160372072,160167528,152186328]),
    [] ).

fof(b_liar_and_c_truthteller,plain,
    ( ~ a_truth(liar(b))
    | ~ a_truth(truthteller(c))
    | an_answer(b_liar_and_c_truthteller) ),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/PUZ/PUZ023-1.tptp',unknown),
    [] ).

cnf(152312824,plain,
    ( ~ a_truth(liar(b))
    | ~ a_truth(truthteller(c))
    | an_answer(b_liar_and_c_truthteller) ),
    inference(rewrite,[status(thm)],[b_liar_and_c_truthteller]),
    [] ).

cnf(161238464,plain,
    an_answer(b_liar_and_c_truthteller),
    inference(forward_subsumption_resolution__resolution,[status(thm)],[160415232,152312824,160372072]),
    [] ).

cnf(contradiction,plain,
    $false,
    inference(resolution,[status(thm)],[161238464,152334600]),
    [] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% Proof found in: 1 seconds
% START OF PROOF SEQUENCE
% fof(b_and_c_liars,plain,(~a_truth(liar(b))|~a_truth(liar(c))|an_answer(b_and_c_liars)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/PUZ/PUZ023-1.tptp',unknown),[]).
% 
% cnf(152181592,plain,(~a_truth(liar(b))|~a_truth(liar(c))|an_answer(b_and_c_liars)),inference(rewrite,[status(thm)],[b_and_c_liars]),[]).
% 
% fof(prove_there_is_an_answer,plain,(~an_answer(A)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/PUZ/PUZ023-1.tptp',unknown),[]).
% 
% cnf(152334600,plain,(~an_answer(A)),inference(rewrite,[status(thm)],[prove_there_is_an_answer]),[]).
% 
% cnf(160146056,plain,(~a_truth(liar(b))|~a_truth(liar(c))),inference(resolution,[status(thm)],[152181592,152334600]),[]).
% 
% fof(truthteller_or_liar,plain,(a_truth(truthteller(A))|a_truth(liar(A))),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/PUZ/PUZ023-1.tptp',unknown),[]).
% 
% cnf(152186328,plain,(a_truth(truthteller(A))|a_truth(liar(A))),inference(rewrite,[status(thm)],[truthteller_or_liar]),[]).
% 
% cnf(160331848,plain,(~a_truth(liar(c))|a_truth(truthteller(b))),inference(resolution,[status(thm)],[160146056,152186328]),[]).
% 
% cnf(160349056,plain,(a_truth(truthteller(b))|a_truth(truthteller(c))),inference(resolution,[status(thm)],[160331848,152186328]),[]).
% 
% fof(b_truthteller_and_c_liar,plain,(~a_truth(truthteller(b))|~a_truth(liar(c))|an_answer(b_truthteller_and_c_liar)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/PUZ/PUZ023-1.tptp',unknown),[]).
% 
% cnf(152320208,plain,(~a_truth(truthteller(b))|~a_truth(liar(c))|an_answer(b_truthteller_and_c_liar)),inference(rewrite,[status(thm)],[b_truthteller_and_c_liar]),[]).
% 
% cnf(160163320,plain,(~a_truth(truthteller(b))|~a_truth(liar(c))),inference(resolution,[status(thm)],[152320208,152334600]),[]).
% 
% cnf(160372072,plain,(a_truth(truthteller(c))),inference(forward_subsumption_resolution__resolution,[status(thm)],[160349056,160163320,152186328]),[]).
% 
% fof(b_and_c_truthtellers,plain,(~a_truth(truthteller(b))|~a_truth(truthteller(c))|an_answer(b_and_c_truthtellers)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/PUZ/PUZ023-1.tptp',unknown),[]).
% 
% cnf(152329944,plain,(~a_truth(truthteller(b))|~a_truth(truthteller(c))|an_answer(b_and_c_truthtellers)),inference(rewrite,[status(thm)],[b_and_c_truthtellers]),[]).
% 
% cnf(160167528,plain,(~a_truth(truthteller(b))|~a_truth(truthteller(c))),inference(resolution,[status(thm)],[152329944,152334600]),[]).
% 
% cnf(160415232,plain,(a_truth(liar(b))),inference(forward_subsumption_resolution__resolution,[status(thm)],[160372072,160167528,152186328]),[]).
% 
% fof(b_liar_and_c_truthteller,plain,(~a_truth(liar(b))|~a_truth(truthteller(c))|an_answer(b_liar_and_c_truthteller)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/PUZ/PUZ023-1.tptp',unknown),[]).
% 
% cnf(152312824,plain,(~a_truth(liar(b))|~a_truth(truthteller(c))|an_answer(b_liar_and_c_truthteller)),inference(rewrite,[status(thm)],[b_liar_and_c_truthteller]),[]).
% 
% cnf(161238464,plain,(an_answer(b_liar_and_c_truthteller)),inference(forward_subsumption_resolution__resolution,[status(thm)],[160415232,152312824,160372072]),[]).
% 
% cnf(contradiction,plain,$false,inference(resolution,[status(thm)],[161238464,152334600]),[]).
% 
% END OF PROOF SEQUENCE
% 
%------------------------------------------------------------------------------