TSTP Solution File: SET696+4 by SInE---0.4

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%------------------------------------------------------------------------------
% File     : SInE---0.4
% Problem  : SET696+4 : TPTP v5.0.0. Released v2.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : Source/sine.py -e eprover -t %d %s

% Computer : art01.cs.miami.edu
% Model    : i686 i686
% CPU      : Intel(R) Pentium(R) 4 CPU 2.80GHz @ 2793MHz
% Memory   : 2018MB
% OS       : Linux 2.6.26.8-57.fc8
% CPULimit : 300s
% DateTime : Sun Dec 26 03:12:34 EST 2010

% Result   : Theorem 0.30s
% Output   : CNFRefutation 0.30s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   12
%            Number of leaves      :    6
% Syntax   : Number of formulae    :   45 (  11 unt;   0 def)
%            Number of atoms       :  145 (   0 equ)
%            Maximal formula atoms :    7 (   3 avg)
%            Number of connectives :  167 (  67   ~;  57   |;  35   &)
%                                         (   5 <=>;   3  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    9 (   5 avg)
%            Maximal term depth    :    4 (   1 avg)
%            Number of predicates  :    4 (   3 usr;   1 prp; 0-2 aty)
%            Number of functors    :    6 (   6 usr;   3 con; 0-2 aty)
%            Number of variables   :   94 (   7 sgn  60   !;   6   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(1,axiom,
    ! [X1,X2] :
      ( subset(X1,X2)
    <=> ! [X3] :
          ( member(X3,X1)
         => member(X3,X2) ) ),
    file('/tmp/tmpeww8Lv/sel_SET696+4.p_1',subset) ).

fof(2,axiom,
    ! [X1,X2] :
      ( equal_set(X1,X2)
    <=> ( subset(X1,X2)
        & subset(X2,X1) ) ),
    file('/tmp/tmpeww8Lv/sel_SET696+4.p_1',equal_set) ).

fof(3,axiom,
    ! [X3,X1,X2] :
      ( member(X3,intersection(X1,X2))
    <=> ( member(X3,X1)
        & member(X3,X2) ) ),
    file('/tmp/tmpeww8Lv/sel_SET696+4.p_1',intersection) ).

fof(4,axiom,
    ! [X2,X1,X4] :
      ( member(X2,difference(X4,X1))
    <=> ( member(X2,X4)
        & ~ member(X2,X1) ) ),
    file('/tmp/tmpeww8Lv/sel_SET696+4.p_1',difference) ).

fof(5,axiom,
    ! [X3] : ~ member(X3,empty_set),
    file('/tmp/tmpeww8Lv/sel_SET696+4.p_1',empty_set) ).

fof(6,conjecture,
    ! [X1,X4] :
      ( subset(X1,X4)
     => equal_set(intersection(difference(X4,X1),X1),empty_set) ),
    file('/tmp/tmpeww8Lv/sel_SET696+4.p_1',thI28) ).

fof(7,negated_conjecture,
    ~ ! [X1,X4] :
        ( subset(X1,X4)
       => equal_set(intersection(difference(X4,X1),X1),empty_set) ),
    inference(assume_negation,[status(cth)],[6]) ).

fof(8,plain,
    ! [X2,X1,X4] :
      ( member(X2,difference(X4,X1))
    <=> ( member(X2,X4)
        & ~ member(X2,X1) ) ),
    inference(fof_simplification,[status(thm)],[4,theory(equality)]) ).

fof(9,plain,
    ! [X3] : ~ member(X3,empty_set),
    inference(fof_simplification,[status(thm)],[5,theory(equality)]) ).

fof(10,plain,
    ! [X1,X2] :
      ( ( ~ subset(X1,X2)
        | ! [X3] :
            ( ~ member(X3,X1)
            | member(X3,X2) ) )
      & ( ? [X3] :
            ( member(X3,X1)
            & ~ member(X3,X2) )
        | subset(X1,X2) ) ),
    inference(fof_nnf,[status(thm)],[1]) ).

fof(11,plain,
    ! [X4,X5] :
      ( ( ~ subset(X4,X5)
        | ! [X6] :
            ( ~ member(X6,X4)
            | member(X6,X5) ) )
      & ( ? [X7] :
            ( member(X7,X4)
            & ~ member(X7,X5) )
        | subset(X4,X5) ) ),
    inference(variable_rename,[status(thm)],[10]) ).

fof(12,plain,
    ! [X4,X5] :
      ( ( ~ subset(X4,X5)
        | ! [X6] :
            ( ~ member(X6,X4)
            | member(X6,X5) ) )
      & ( ( member(esk1_2(X4,X5),X4)
          & ~ member(esk1_2(X4,X5),X5) )
        | subset(X4,X5) ) ),
    inference(skolemize,[status(esa)],[11]) ).

fof(13,plain,
    ! [X4,X5,X6] :
      ( ( ~ member(X6,X4)
        | member(X6,X5)
        | ~ subset(X4,X5) )
      & ( ( member(esk1_2(X4,X5),X4)
          & ~ member(esk1_2(X4,X5),X5) )
        | subset(X4,X5) ) ),
    inference(shift_quantors,[status(thm)],[12]) ).

fof(14,plain,
    ! [X4,X5,X6] :
      ( ( ~ member(X6,X4)
        | member(X6,X5)
        | ~ subset(X4,X5) )
      & ( member(esk1_2(X4,X5),X4)
        | subset(X4,X5) )
      & ( ~ member(esk1_2(X4,X5),X5)
        | subset(X4,X5) ) ),
    inference(distribute,[status(thm)],[13]) ).

cnf(16,plain,
    ( subset(X1,X2)
    | member(esk1_2(X1,X2),X1) ),
    inference(split_conjunct,[status(thm)],[14]) ).

fof(18,plain,
    ! [X1,X2] :
      ( ( ~ equal_set(X1,X2)
        | ( subset(X1,X2)
          & subset(X2,X1) ) )
      & ( ~ subset(X1,X2)
        | ~ subset(X2,X1)
        | equal_set(X1,X2) ) ),
    inference(fof_nnf,[status(thm)],[2]) ).

fof(19,plain,
    ! [X3,X4] :
      ( ( ~ equal_set(X3,X4)
        | ( subset(X3,X4)
          & subset(X4,X3) ) )
      & ( ~ subset(X3,X4)
        | ~ subset(X4,X3)
        | equal_set(X3,X4) ) ),
    inference(variable_rename,[status(thm)],[18]) ).

fof(20,plain,
    ! [X3,X4] :
      ( ( subset(X3,X4)
        | ~ equal_set(X3,X4) )
      & ( subset(X4,X3)
        | ~ equal_set(X3,X4) )
      & ( ~ subset(X3,X4)
        | ~ subset(X4,X3)
        | equal_set(X3,X4) ) ),
    inference(distribute,[status(thm)],[19]) ).

cnf(21,plain,
    ( equal_set(X1,X2)
    | ~ subset(X2,X1)
    | ~ subset(X1,X2) ),
    inference(split_conjunct,[status(thm)],[20]) ).

fof(24,plain,
    ! [X3,X1,X2] :
      ( ( ~ member(X3,intersection(X1,X2))
        | ( member(X3,X1)
          & member(X3,X2) ) )
      & ( ~ member(X3,X1)
        | ~ member(X3,X2)
        | member(X3,intersection(X1,X2)) ) ),
    inference(fof_nnf,[status(thm)],[3]) ).

fof(25,plain,
    ! [X4,X5,X6] :
      ( ( ~ member(X4,intersection(X5,X6))
        | ( member(X4,X5)
          & member(X4,X6) ) )
      & ( ~ member(X4,X5)
        | ~ member(X4,X6)
        | member(X4,intersection(X5,X6)) ) ),
    inference(variable_rename,[status(thm)],[24]) ).

fof(26,plain,
    ! [X4,X5,X6] :
      ( ( member(X4,X5)
        | ~ member(X4,intersection(X5,X6)) )
      & ( member(X4,X6)
        | ~ member(X4,intersection(X5,X6)) )
      & ( ~ member(X4,X5)
        | ~ member(X4,X6)
        | member(X4,intersection(X5,X6)) ) ),
    inference(distribute,[status(thm)],[25]) ).

cnf(28,plain,
    ( member(X1,X3)
    | ~ member(X1,intersection(X2,X3)) ),
    inference(split_conjunct,[status(thm)],[26]) ).

cnf(29,plain,
    ( member(X1,X2)
    | ~ member(X1,intersection(X2,X3)) ),
    inference(split_conjunct,[status(thm)],[26]) ).

fof(30,plain,
    ! [X2,X1,X4] :
      ( ( ~ member(X2,difference(X4,X1))
        | ( member(X2,X4)
          & ~ member(X2,X1) ) )
      & ( ~ member(X2,X4)
        | member(X2,X1)
        | member(X2,difference(X4,X1)) ) ),
    inference(fof_nnf,[status(thm)],[8]) ).

fof(31,plain,
    ! [X5,X6,X7] :
      ( ( ~ member(X5,difference(X7,X6))
        | ( member(X5,X7)
          & ~ member(X5,X6) ) )
      & ( ~ member(X5,X7)
        | member(X5,X6)
        | member(X5,difference(X7,X6)) ) ),
    inference(variable_rename,[status(thm)],[30]) ).

fof(32,plain,
    ! [X5,X6,X7] :
      ( ( member(X5,X7)
        | ~ member(X5,difference(X7,X6)) )
      & ( ~ member(X5,X6)
        | ~ member(X5,difference(X7,X6)) )
      & ( ~ member(X5,X7)
        | member(X5,X6)
        | member(X5,difference(X7,X6)) ) ),
    inference(distribute,[status(thm)],[31]) ).

cnf(34,plain,
    ( ~ member(X1,difference(X2,X3))
    | ~ member(X1,X3) ),
    inference(split_conjunct,[status(thm)],[32]) ).

fof(36,plain,
    ! [X4] : ~ member(X4,empty_set),
    inference(variable_rename,[status(thm)],[9]) ).

cnf(37,plain,
    ~ member(X1,empty_set),
    inference(split_conjunct,[status(thm)],[36]) ).

fof(38,negated_conjecture,
    ? [X1,X4] :
      ( subset(X1,X4)
      & ~ equal_set(intersection(difference(X4,X1),X1),empty_set) ),
    inference(fof_nnf,[status(thm)],[7]) ).

fof(39,negated_conjecture,
    ? [X5,X6] :
      ( subset(X5,X6)
      & ~ equal_set(intersection(difference(X6,X5),X5),empty_set) ),
    inference(variable_rename,[status(thm)],[38]) ).

fof(40,negated_conjecture,
    ( subset(esk2_0,esk3_0)
    & ~ equal_set(intersection(difference(esk3_0,esk2_0),esk2_0),empty_set) ),
    inference(skolemize,[status(esa)],[39]) ).

cnf(41,negated_conjecture,
    ~ equal_set(intersection(difference(esk3_0,esk2_0),esk2_0),empty_set),
    inference(split_conjunct,[status(thm)],[40]) ).

cnf(45,plain,
    subset(empty_set,X1),
    inference(spm,[status(thm)],[37,16,theory(equality)]) ).

cnf(47,negated_conjecture,
    ( ~ subset(empty_set,intersection(difference(esk3_0,esk2_0),esk2_0))
    | ~ subset(intersection(difference(esk3_0,esk2_0),esk2_0),empty_set) ),
    inference(spm,[status(thm)],[41,21,theory(equality)]) ).

cnf(49,plain,
    ( member(esk1_2(intersection(X1,X2),X3),X2)
    | subset(intersection(X1,X2),X3) ),
    inference(spm,[status(thm)],[28,16,theory(equality)]) ).

cnf(50,plain,
    ( member(esk1_2(intersection(X1,X2),X3),X1)
    | subset(intersection(X1,X2),X3) ),
    inference(spm,[status(thm)],[29,16,theory(equality)]) ).

cnf(61,negated_conjecture,
    ( $false
    | ~ subset(intersection(difference(esk3_0,esk2_0),esk2_0),empty_set) ),
    inference(rw,[status(thm)],[47,45,theory(equality)]) ).

cnf(62,negated_conjecture,
    ~ subset(intersection(difference(esk3_0,esk2_0),esk2_0),empty_set),
    inference(cn,[status(thm)],[61,theory(equality)]) ).

cnf(88,plain,
    ( subset(intersection(difference(X1,X2),X3),X4)
    | ~ member(esk1_2(intersection(difference(X1,X2),X3),X4),X2) ),
    inference(spm,[status(thm)],[34,50,theory(equality)]) ).

cnf(1001,plain,
    subset(intersection(difference(X1,X2),X2),X3),
    inference(spm,[status(thm)],[88,49,theory(equality)]) ).

cnf(1015,negated_conjecture,
    $false,
    inference(rw,[status(thm)],[62,1001,theory(equality)]) ).

cnf(1016,negated_conjecture,
    $false,
    inference(cn,[status(thm)],[1015,theory(equality)]) ).

cnf(1017,negated_conjecture,
    $false,
    1016,
    [proof] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% % SZS status Started for /home/graph/tptp/TPTP/Problems/SET/SET696+4.p
% --creating new selector for [SET006+0.ax]
% -running prover on /tmp/tmpeww8Lv/sel_SET696+4.p_1 with time limit 29
% -prover status Theorem
% Problem SET696+4.p solved in phase 0.
% % SZS status Theorem for /home/graph/tptp/TPTP/Problems/SET/SET696+4.p
% % SZS status Ended for /home/graph/tptp/TPTP/Problems/SET/SET696+4.p
% Solved 1 out of 1.
% # Problem is unsatisfiable (or provable), constructing proof object
% # SZS status Theorem
% # SZS output start CNFRefutation.
% See solution above
% # SZS output end CNFRefutation
% 
%------------------------------------------------------------------------------