TSTP Solution File: COM004-1 by Faust---1.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Faust---1.0
% Problem  : COM004-1 : TPTP v3.4.2. Released v1.1.0.
% Transfm  : none
% Format   : tptp
% Command  : faust %s

% Computer : art08.cs.miami.edu
% Model    : i686 i686
% CPU      : Intel(R) Pentium(R) 4 CPU 2.80GHz @ 2794MHz
% Memory   : 1003MB
% OS       : Linux 2.6.11-1.1369_FC4
% CPULimit : 600s
% DateTime : Wed May  6 11:36:21 EDT 2009

% Result   : Unsatisfiable 0.1s
% Output   : Refutation 0.1s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    6
%            Number of leaves      :    8
% Syntax   : Number of formulae    :   21 (  17 unt;   0 def)
%            Number of atoms       :   33 (   0 equ)
%            Maximal formula atoms :    5 (   1 avg)
%            Number of connectives :   28 (  16   ~;  12   |;   0   &)
%                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   12 (   2 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    5 (   3 usr;   1 prp; 0-2 aty)
%            Number of functors    :   10 (  10 usr;   5 con; 0-2 aty)
%            Number of variables   :   21 (   1 sgn   9   !;   0   ?)

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Faust---1.0 format not known, defaulting to TPTP
fof(n_left_and_n_right_are_siblings,plain,
    ! [A] : siblings(left_child_of(A),right_child_of(A)),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/COM/COM004-1.tptp',unknown),
    [] ).

cnf(147532104,plain,
    siblings(left_child_of(A),right_child_of(A)),
    inference(rewrite,[status(thm)],[n_left_and_n_right_are_siblings]),
    [] ).

fof(x_contradicts_not_x,plain,
    ! [A] : contradictory(A,negate(A)),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/COM/COM004-1.tptp',unknown),
    [] ).

cnf(147527728,plain,
    contradictory(A,negate(A)),
    inference(rewrite,[status(thm)],[x_contradicts_not_x]),
    [] ).

fof(make_node,plain,
    ! [A,B,C,D,E,F] :
      ( failure_node(parent_of(A,B),or(C,D))
      | ~ failure_node(A,or(C,E))
      | ~ failure_node(B,or(D,F))
      | ~ contradictory(E,F)
      | ~ siblings(A,B) ),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/COM/COM004-1.tptp',unknown),
    [] ).

cnf(147514184,plain,
    ( failure_node(parent_of(A,B),or(C,D))
    | ~ failure_node(A,or(C,E))
    | ~ failure_node(B,or(D,F))
    | ~ contradictory(E,F)
    | ~ siblings(A,B) ),
    inference(rewrite,[status(thm)],[make_node]),
    [] ).

fof(n_left_is_atom,plain,
    failure_node(n_left,or(empty,atom)),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/COM/COM004-1.tptp',unknown),
    [] ).

cnf(147536336,plain,
    failure_node(n_left,or(empty,atom)),
    inference(rewrite,[status(thm)],[n_left_is_atom]),
    [] ).

cnf(155550792,plain,
    ( failure_node(parent_of(n_left,A),or(empty,B))
    | ~ failure_node(A,or(B,C))
    | ~ contradictory(atom,C)
    | ~ siblings(n_left,A) ),
    inference(resolution,[status(thm)],[147514184,147536336]),
    [] ).

fof(n_right_is_not_atom,plain,
    failure_node(n_right,or(empty,negate(atom))),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/COM/COM004-1.tptp',unknown),
    [] ).

cnf(147540632,plain,
    failure_node(n_right,or(empty,negate(atom))),
    inference(rewrite,[status(thm)],[n_right_is_not_atom]),
    [] ).

cnf(156019992,plain,
    ( failure_node(parent_of(n_left,n_right),or(empty,empty))
    | ~ siblings(n_left,n_right) ),
    inference(forward_subsumption_resolution__resolution,[status(thm)],[147527728,155550792,147540632]),
    [] ).

fof(goal_is_there_an_empty_node,plain,
    ! [A] : ~ failure_node(A,or(empty,empty)),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/COM/COM004-1.tptp',unknown),
    [] ).

cnf(147558368,plain,
    ~ failure_node(A,or(empty,empty)),
    inference(rewrite,[status(thm)],[goal_is_there_an_empty_node]),
    [] ).

cnf(156211416,plain,
    ~ siblings(n_left,n_right),
    inference(resolution,[status(thm)],[156019992,147558368]),
    [] ).

fof(n_left_equals_left_child_of_n,plain,
    $equal(left_child_of(n),n_left),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/COM/COM004-1.tptp',unknown),
    [] ).

cnf(147545288,plain,
    $equal(left_child_of(n),n_left),
    inference(rewrite,[status(thm)],[n_left_equals_left_child_of_n]),
    [] ).

cnf(156226504,plain,
    ~ siblings(left_child_of(n),n_right),
    inference(paramodulation,[status(thm)],[156211416,147545288,theory(equality)]),
    [] ).

fof(n_right_equals_right_child_of_n,plain,
    $equal(right_child_of(n),n_right),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/COM/COM004-1.tptp',unknown),
    [] ).

cnf(147553616,plain,
    $equal(right_child_of(n),n_right),
    inference(rewrite,[status(thm)],[n_right_equals_right_child_of_n]),
    [] ).

cnf(contradiction,plain,
    $false,
    inference(forward_subsumption_resolution__paramodulation,[status(thm)],[147532104,156226504,147553616,theory(equality)]),
    [] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% Proof found in: 0 seconds
% START OF PROOF SEQUENCE
% fof(n_left_and_n_right_are_siblings,plain,(siblings(left_child_of(A),right_child_of(A))),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/COM/COM004-1.tptp',unknown),[]).
% 
% cnf(147532104,plain,(siblings(left_child_of(A),right_child_of(A))),inference(rewrite,[status(thm)],[n_left_and_n_right_are_siblings]),[]).
% 
% fof(x_contradicts_not_x,plain,(contradictory(A,negate(A))),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/COM/COM004-1.tptp',unknown),[]).
% 
% cnf(147527728,plain,(contradictory(A,negate(A))),inference(rewrite,[status(thm)],[x_contradicts_not_x]),[]).
% 
% fof(make_node,plain,(failure_node(parent_of(A,B),or(C,D))|~failure_node(A,or(C,E))|~failure_node(B,or(D,F))|~contradictory(E,F)|~siblings(A,B)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/COM/COM004-1.tptp',unknown),[]).
% 
% cnf(147514184,plain,(failure_node(parent_of(A,B),or(C,D))|~failure_node(A,or(C,E))|~failure_node(B,or(D,F))|~contradictory(E,F)|~siblings(A,B)),inference(rewrite,[status(thm)],[make_node]),[]).
% 
% fof(n_left_is_atom,plain,(failure_node(n_left,or(empty,atom))),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/COM/COM004-1.tptp',unknown),[]).
% 
% cnf(147536336,plain,(failure_node(n_left,or(empty,atom))),inference(rewrite,[status(thm)],[n_left_is_atom]),[]).
% 
% cnf(155550792,plain,(failure_node(parent_of(n_left,A),or(empty,B))|~failure_node(A,or(B,C))|~contradictory(atom,C)|~siblings(n_left,A)),inference(resolution,[status(thm)],[147514184,147536336]),[]).
% 
% fof(n_right_is_not_atom,plain,(failure_node(n_right,or(empty,negate(atom)))),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/COM/COM004-1.tptp',unknown),[]).
% 
% cnf(147540632,plain,(failure_node(n_right,or(empty,negate(atom)))),inference(rewrite,[status(thm)],[n_right_is_not_atom]),[]).
% 
% cnf(156019992,plain,(failure_node(parent_of(n_left,n_right),or(empty,empty))|~siblings(n_left,n_right)),inference(forward_subsumption_resolution__resolution,[status(thm)],[147527728,155550792,147540632]),[]).
% 
% fof(goal_is_there_an_empty_node,plain,(~failure_node(A,or(empty,empty))),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/COM/COM004-1.tptp',unknown),[]).
% 
% cnf(147558368,plain,(~failure_node(A,or(empty,empty))),inference(rewrite,[status(thm)],[goal_is_there_an_empty_node]),[]).
% 
% cnf(156211416,plain,(~siblings(n_left,n_right)),inference(resolution,[status(thm)],[156019992,147558368]),[]).
% 
% fof(n_left_equals_left_child_of_n,plain,($equal(left_child_of(n),n_left)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/COM/COM004-1.tptp',unknown),[]).
% 
% cnf(147545288,plain,($equal(left_child_of(n),n_left)),inference(rewrite,[status(thm)],[n_left_equals_left_child_of_n]),[]).
% 
% cnf(156226504,plain,(~siblings(left_child_of(n),n_right)),inference(paramodulation,[status(thm)],[156211416,147545288,theory(equality)]),[]).
% 
% fof(n_right_equals_right_child_of_n,plain,($equal(right_child_of(n),n_right)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/COM/COM004-1.tptp',unknown),[]).
% 
% cnf(147553616,plain,($equal(right_child_of(n),n_right)),inference(rewrite,[status(thm)],[n_right_equals_right_child_of_n]),[]).
% 
% cnf(contradiction,plain,$false,inference(forward_subsumption_resolution__paramodulation,[status(thm)],[147532104,156226504,147553616,theory(equality)]),[]).
% 
% END OF PROOF SEQUENCE
% 
%------------------------------------------------------------------------------