TSTP Solution File: SET656+3 by SInE---0.4

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SInE---0.4
% Problem  : SET656+3 : TPTP v5.0.0. Released v2.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : Source/sine.py -e eprover -t %d %s

% Computer : art02.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 03:08:02 EST 2010

% Result   : Theorem 81.79s
% Output   : CNFRefutation 81.79s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   26
%            Number of leaves      :   12
% Syntax   : Number of formulae    :  135 (  12 unt;   0 def)
%            Number of atoms       :  703 (  36 equ)
%            Maximal formula atoms :   26 (   5 avg)
%            Number of connectives :  926 ( 358   ~; 421   |;  98   &)
%                                         (  10 <=>;  39  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   13 (   6 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    6 (   4 usr;   1 prp; 0-2 aty)
%            Number of functors    :   14 (  14 usr;   4 con; 0-2 aty)
%            Number of variables   :  296 (  13 sgn 146   !;  14   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(4,axiom,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ( empty(X1)
      <=> ! [X2] :
            ( ilf_type(X2,set_type)
           => ~ member(X2,X1) ) ) ),
    file('/tmp/tmpnebYKB/sel_SET656+3.p_2',p26) ).

fof(5,axiom,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ! [X2] :
          ( ( ~ empty(X2)
            & ilf_type(X2,set_type) )
         => ( ilf_type(X1,member_type(X2))
          <=> member(X1,X2) ) ) ),
    file('/tmp/tmpnebYKB/sel_SET656+3.p_2',p21) ).

fof(6,axiom,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ( ~ empty(power_set(X1))
        & ilf_type(power_set(X1),set_type) ) ),
    file('/tmp/tmpnebYKB/sel_SET656+3.p_2',p20) ).

fof(7,axiom,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ! [X2] :
          ( ilf_type(X2,set_type)
         => ( X1 = X2
          <=> ! [X3] :
                ( ilf_type(X3,set_type)
               => ( member(X3,X1)
                <=> member(X3,X2) ) ) ) ) ),
    file('/tmp/tmpnebYKB/sel_SET656+3.p_2',p23) ).

fof(14,axiom,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ! [X2] :
          ( ilf_type(X2,set_type)
         => ( ilf_type(X2,subset_type(X1))
          <=> ilf_type(X2,member_type(power_set(X1))) ) ) ),
    file('/tmp/tmpnebYKB/sel_SET656+3.p_2',p13) ).

fof(18,axiom,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ! [X2] :
          ( ilf_type(X2,set_type)
         => ( subset(X1,X2)
          <=> ! [X3] :
                ( ilf_type(X3,set_type)
               => ( member(X3,X1)
                 => member(X3,X2) ) ) ) ) ),
    file('/tmp/tmpnebYKB/sel_SET656+3.p_2',p17) ).

fof(20,axiom,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ! [X2] :
          ( ilf_type(X2,set_type)
         => ( member(X1,power_set(X2))
          <=> ! [X3] :
                ( ilf_type(X3,set_type)
               => ( member(X3,X1)
                 => member(X3,X2) ) ) ) ) ),
    file('/tmp/tmpnebYKB/sel_SET656+3.p_2',p19) ).

fof(21,axiom,
    ! [X1] : ilf_type(X1,set_type),
    file('/tmp/tmpnebYKB/sel_SET656+3.p_2',p30) ).

fof(22,conjecture,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ! [X2] :
          ( ilf_type(X2,set_type)
         => ! [X3] :
              ( ilf_type(X3,relation_type(X1,X2))
             => intersection(X3,cross_product(X1,X2)) = X3 ) ) ),
    file('/tmp/tmpnebYKB/sel_SET656+3.p_2',prove_relset_1_18) ).

fof(25,axiom,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ! [X2] :
          ( ilf_type(X2,set_type)
         => ( subset(X1,X2)
           => intersection(X1,X2) = X1 ) ) ),
    file('/tmp/tmpnebYKB/sel_SET656+3.p_2',p1) ).

fof(26,axiom,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ! [X2] :
          ( ilf_type(X2,set_type)
         => ( ! [X3] :
                ( ilf_type(X3,subset_type(cross_product(X1,X2)))
               => ilf_type(X3,relation_type(X1,X2)) )
            & ! [X4] :
                ( ilf_type(X4,relation_type(X1,X2))
               => ilf_type(X4,subset_type(cross_product(X1,X2))) ) ) ) ),
    file('/tmp/tmpnebYKB/sel_SET656+3.p_2',p6) ).

fof(28,axiom,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ! [X2] :
          ( ilf_type(X2,set_type)
         => ! [X3] :
              ( ilf_type(X3,set_type)
             => ( member(X3,intersection(X1,X2))
              <=> ( member(X3,X1)
                  & member(X3,X2) ) ) ) ) ),
    file('/tmp/tmpnebYKB/sel_SET656+3.p_2',p4) ).

fof(32,negated_conjecture,
    ~ ! [X1] :
        ( ilf_type(X1,set_type)
       => ! [X2] :
            ( ilf_type(X2,set_type)
           => ! [X3] :
                ( ilf_type(X3,relation_type(X1,X2))
               => intersection(X3,cross_product(X1,X2)) = X3 ) ) ),
    inference(assume_negation,[status(cth)],[22]) ).

fof(33,plain,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ( empty(X1)
      <=> ! [X2] :
            ( ilf_type(X2,set_type)
           => ~ member(X2,X1) ) ) ),
    inference(fof_simplification,[status(thm)],[4,theory(equality)]) ).

fof(34,plain,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ! [X2] :
          ( ( ~ empty(X2)
            & ilf_type(X2,set_type) )
         => ( ilf_type(X1,member_type(X2))
          <=> member(X1,X2) ) ) ),
    inference(fof_simplification,[status(thm)],[5,theory(equality)]) ).

fof(35,plain,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ( ~ empty(power_set(X1))
        & ilf_type(power_set(X1),set_type) ) ),
    inference(fof_simplification,[status(thm)],[6,theory(equality)]) ).

fof(55,plain,
    ! [X1] :
      ( ~ ilf_type(X1,set_type)
      | ( ( ~ empty(X1)
          | ! [X2] :
              ( ~ ilf_type(X2,set_type)
              | ~ member(X2,X1) ) )
        & ( ? [X2] :
              ( ilf_type(X2,set_type)
              & member(X2,X1) )
          | empty(X1) ) ) ),
    inference(fof_nnf,[status(thm)],[33]) ).

fof(56,plain,
    ! [X3] :
      ( ~ ilf_type(X3,set_type)
      | ( ( ~ empty(X3)
          | ! [X4] :
              ( ~ ilf_type(X4,set_type)
              | ~ member(X4,X3) ) )
        & ( ? [X5] :
              ( ilf_type(X5,set_type)
              & member(X5,X3) )
          | empty(X3) ) ) ),
    inference(variable_rename,[status(thm)],[55]) ).

fof(57,plain,
    ! [X3] :
      ( ~ ilf_type(X3,set_type)
      | ( ( ~ empty(X3)
          | ! [X4] :
              ( ~ ilf_type(X4,set_type)
              | ~ member(X4,X3) ) )
        & ( ( ilf_type(esk4_1(X3),set_type)
            & member(esk4_1(X3),X3) )
          | empty(X3) ) ) ),
    inference(skolemize,[status(esa)],[56]) ).

fof(58,plain,
    ! [X3,X4] :
      ( ( ( ~ ilf_type(X4,set_type)
          | ~ member(X4,X3)
          | ~ empty(X3) )
        & ( ( ilf_type(esk4_1(X3),set_type)
            & member(esk4_1(X3),X3) )
          | empty(X3) ) )
      | ~ ilf_type(X3,set_type) ),
    inference(shift_quantors,[status(thm)],[57]) ).

fof(59,plain,
    ! [X3,X4] :
      ( ( ~ ilf_type(X4,set_type)
        | ~ member(X4,X3)
        | ~ empty(X3)
        | ~ ilf_type(X3,set_type) )
      & ( ilf_type(esk4_1(X3),set_type)
        | empty(X3)
        | ~ ilf_type(X3,set_type) )
      & ( member(esk4_1(X3),X3)
        | empty(X3)
        | ~ ilf_type(X3,set_type) ) ),
    inference(distribute,[status(thm)],[58]) ).

cnf(62,plain,
    ( ~ ilf_type(X1,set_type)
    | ~ empty(X1)
    | ~ member(X2,X1)
    | ~ ilf_type(X2,set_type) ),
    inference(split_conjunct,[status(thm)],[59]) ).

fof(63,plain,
    ! [X1] :
      ( ~ ilf_type(X1,set_type)
      | ! [X2] :
          ( empty(X2)
          | ~ ilf_type(X2,set_type)
          | ( ( ~ ilf_type(X1,member_type(X2))
              | member(X1,X2) )
            & ( ~ member(X1,X2)
              | ilf_type(X1,member_type(X2)) ) ) ) ),
    inference(fof_nnf,[status(thm)],[34]) ).

fof(64,plain,
    ! [X3] :
      ( ~ ilf_type(X3,set_type)
      | ! [X4] :
          ( empty(X4)
          | ~ ilf_type(X4,set_type)
          | ( ( ~ ilf_type(X3,member_type(X4))
              | member(X3,X4) )
            & ( ~ member(X3,X4)
              | ilf_type(X3,member_type(X4)) ) ) ) ),
    inference(variable_rename,[status(thm)],[63]) ).

fof(65,plain,
    ! [X3,X4] :
      ( empty(X4)
      | ~ ilf_type(X4,set_type)
      | ( ( ~ ilf_type(X3,member_type(X4))
          | member(X3,X4) )
        & ( ~ member(X3,X4)
          | ilf_type(X3,member_type(X4)) ) )
      | ~ ilf_type(X3,set_type) ),
    inference(shift_quantors,[status(thm)],[64]) ).

fof(66,plain,
    ! [X3,X4] :
      ( ( ~ ilf_type(X3,member_type(X4))
        | member(X3,X4)
        | empty(X4)
        | ~ ilf_type(X4,set_type)
        | ~ ilf_type(X3,set_type) )
      & ( ~ member(X3,X4)
        | ilf_type(X3,member_type(X4))
        | empty(X4)
        | ~ ilf_type(X4,set_type)
        | ~ ilf_type(X3,set_type) ) ),
    inference(distribute,[status(thm)],[65]) ).

cnf(67,plain,
    ( empty(X2)
    | ilf_type(X1,member_type(X2))
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X2,set_type)
    | ~ member(X1,X2) ),
    inference(split_conjunct,[status(thm)],[66]) ).

cnf(68,plain,
    ( empty(X2)
    | member(X1,X2)
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X2,set_type)
    | ~ ilf_type(X1,member_type(X2)) ),
    inference(split_conjunct,[status(thm)],[66]) ).

fof(69,plain,
    ! [X1] :
      ( ~ ilf_type(X1,set_type)
      | ( ~ empty(power_set(X1))
        & ilf_type(power_set(X1),set_type) ) ),
    inference(fof_nnf,[status(thm)],[35]) ).

fof(70,plain,
    ! [X2] :
      ( ~ ilf_type(X2,set_type)
      | ( ~ empty(power_set(X2))
        & ilf_type(power_set(X2),set_type) ) ),
    inference(variable_rename,[status(thm)],[69]) ).

fof(71,plain,
    ! [X2] :
      ( ( ~ empty(power_set(X2))
        | ~ ilf_type(X2,set_type) )
      & ( ilf_type(power_set(X2),set_type)
        | ~ ilf_type(X2,set_type) ) ),
    inference(distribute,[status(thm)],[70]) ).

cnf(73,plain,
    ( ~ ilf_type(X1,set_type)
    | ~ empty(power_set(X1)) ),
    inference(split_conjunct,[status(thm)],[71]) ).

fof(74,plain,
    ! [X1] :
      ( ~ ilf_type(X1,set_type)
      | ! [X2] :
          ( ~ ilf_type(X2,set_type)
          | ( ( X1 != X2
              | ! [X3] :
                  ( ~ ilf_type(X3,set_type)
                  | ( ( ~ member(X3,X1)
                      | member(X3,X2) )
                    & ( ~ member(X3,X2)
                      | member(X3,X1) ) ) ) )
            & ( ? [X3] :
                  ( ilf_type(X3,set_type)
                  & ( ~ member(X3,X1)
                    | ~ member(X3,X2) )
                  & ( member(X3,X1)
                    | member(X3,X2) ) )
              | X1 = X2 ) ) ) ),
    inference(fof_nnf,[status(thm)],[7]) ).

fof(75,plain,
    ! [X4] :
      ( ~ ilf_type(X4,set_type)
      | ! [X5] :
          ( ~ ilf_type(X5,set_type)
          | ( ( X4 != X5
              | ! [X6] :
                  ( ~ ilf_type(X6,set_type)
                  | ( ( ~ member(X6,X4)
                      | member(X6,X5) )
                    & ( ~ member(X6,X5)
                      | member(X6,X4) ) ) ) )
            & ( ? [X7] :
                  ( ilf_type(X7,set_type)
                  & ( ~ member(X7,X4)
                    | ~ member(X7,X5) )
                  & ( member(X7,X4)
                    | member(X7,X5) ) )
              | X4 = X5 ) ) ) ),
    inference(variable_rename,[status(thm)],[74]) ).

fof(76,plain,
    ! [X4] :
      ( ~ ilf_type(X4,set_type)
      | ! [X5] :
          ( ~ ilf_type(X5,set_type)
          | ( ( X4 != X5
              | ! [X6] :
                  ( ~ ilf_type(X6,set_type)
                  | ( ( ~ member(X6,X4)
                      | member(X6,X5) )
                    & ( ~ member(X6,X5)
                      | member(X6,X4) ) ) ) )
            & ( ( ilf_type(esk5_2(X4,X5),set_type)
                & ( ~ member(esk5_2(X4,X5),X4)
                  | ~ member(esk5_2(X4,X5),X5) )
                & ( member(esk5_2(X4,X5),X4)
                  | member(esk5_2(X4,X5),X5) ) )
              | X4 = X5 ) ) ) ),
    inference(skolemize,[status(esa)],[75]) ).

fof(77,plain,
    ! [X4,X5,X6] :
      ( ( ( ~ ilf_type(X6,set_type)
          | ( ( ~ member(X6,X4)
              | member(X6,X5) )
            & ( ~ member(X6,X5)
              | member(X6,X4) ) )
          | X4 != X5 )
        & ( ( ilf_type(esk5_2(X4,X5),set_type)
            & ( ~ member(esk5_2(X4,X5),X4)
              | ~ member(esk5_2(X4,X5),X5) )
            & ( member(esk5_2(X4,X5),X4)
              | member(esk5_2(X4,X5),X5) ) )
          | X4 = X5 ) )
      | ~ ilf_type(X5,set_type)
      | ~ ilf_type(X4,set_type) ),
    inference(shift_quantors,[status(thm)],[76]) ).

fof(78,plain,
    ! [X4,X5,X6] :
      ( ( ~ member(X6,X4)
        | member(X6,X5)
        | ~ ilf_type(X6,set_type)
        | X4 != X5
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) )
      & ( ~ member(X6,X5)
        | member(X6,X4)
        | ~ ilf_type(X6,set_type)
        | X4 != X5
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) )
      & ( ilf_type(esk5_2(X4,X5),set_type)
        | X4 = X5
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) )
      & ( ~ member(esk5_2(X4,X5),X4)
        | ~ member(esk5_2(X4,X5),X5)
        | X4 = X5
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) )
      & ( member(esk5_2(X4,X5),X4)
        | member(esk5_2(X4,X5),X5)
        | X4 = X5
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) ) ),
    inference(distribute,[status(thm)],[77]) ).

cnf(79,plain,
    ( X1 = X2
    | member(esk5_2(X1,X2),X2)
    | member(esk5_2(X1,X2),X1)
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X2,set_type) ),
    inference(split_conjunct,[status(thm)],[78]) ).

fof(109,plain,
    ! [X1] :
      ( ~ ilf_type(X1,set_type)
      | ! [X2] :
          ( ~ ilf_type(X2,set_type)
          | ( ( ~ ilf_type(X2,subset_type(X1))
              | ilf_type(X2,member_type(power_set(X1))) )
            & ( ~ ilf_type(X2,member_type(power_set(X1)))
              | ilf_type(X2,subset_type(X1)) ) ) ) ),
    inference(fof_nnf,[status(thm)],[14]) ).

fof(110,plain,
    ! [X3] :
      ( ~ ilf_type(X3,set_type)
      | ! [X4] :
          ( ~ ilf_type(X4,set_type)
          | ( ( ~ ilf_type(X4,subset_type(X3))
              | ilf_type(X4,member_type(power_set(X3))) )
            & ( ~ ilf_type(X4,member_type(power_set(X3)))
              | ilf_type(X4,subset_type(X3)) ) ) ) ),
    inference(variable_rename,[status(thm)],[109]) ).

fof(111,plain,
    ! [X3,X4] :
      ( ~ ilf_type(X4,set_type)
      | ( ( ~ ilf_type(X4,subset_type(X3))
          | ilf_type(X4,member_type(power_set(X3))) )
        & ( ~ ilf_type(X4,member_type(power_set(X3)))
          | ilf_type(X4,subset_type(X3)) ) )
      | ~ ilf_type(X3,set_type) ),
    inference(shift_quantors,[status(thm)],[110]) ).

fof(112,plain,
    ! [X3,X4] :
      ( ( ~ ilf_type(X4,subset_type(X3))
        | ilf_type(X4,member_type(power_set(X3)))
        | ~ ilf_type(X4,set_type)
        | ~ ilf_type(X3,set_type) )
      & ( ~ ilf_type(X4,member_type(power_set(X3)))
        | ilf_type(X4,subset_type(X3))
        | ~ ilf_type(X4,set_type)
        | ~ ilf_type(X3,set_type) ) ),
    inference(distribute,[status(thm)],[111]) ).

cnf(114,plain,
    ( ilf_type(X2,member_type(power_set(X1)))
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X2,set_type)
    | ~ ilf_type(X2,subset_type(X1)) ),
    inference(split_conjunct,[status(thm)],[112]) ).

fof(126,plain,
    ! [X1] :
      ( ~ ilf_type(X1,set_type)
      | ! [X2] :
          ( ~ ilf_type(X2,set_type)
          | ( ( ~ subset(X1,X2)
              | ! [X3] :
                  ( ~ ilf_type(X3,set_type)
                  | ~ member(X3,X1)
                  | member(X3,X2) ) )
            & ( ? [X3] :
                  ( ilf_type(X3,set_type)
                  & member(X3,X1)
                  & ~ member(X3,X2) )
              | subset(X1,X2) ) ) ) ),
    inference(fof_nnf,[status(thm)],[18]) ).

fof(127,plain,
    ! [X4] :
      ( ~ ilf_type(X4,set_type)
      | ! [X5] :
          ( ~ ilf_type(X5,set_type)
          | ( ( ~ subset(X4,X5)
              | ! [X6] :
                  ( ~ ilf_type(X6,set_type)
                  | ~ member(X6,X4)
                  | member(X6,X5) ) )
            & ( ? [X7] :
                  ( ilf_type(X7,set_type)
                  & member(X7,X4)
                  & ~ member(X7,X5) )
              | subset(X4,X5) ) ) ) ),
    inference(variable_rename,[status(thm)],[126]) ).

fof(128,plain,
    ! [X4] :
      ( ~ ilf_type(X4,set_type)
      | ! [X5] :
          ( ~ ilf_type(X5,set_type)
          | ( ( ~ subset(X4,X5)
              | ! [X6] :
                  ( ~ ilf_type(X6,set_type)
                  | ~ member(X6,X4)
                  | member(X6,X5) ) )
            & ( ( ilf_type(esk9_2(X4,X5),set_type)
                & member(esk9_2(X4,X5),X4)
                & ~ member(esk9_2(X4,X5),X5) )
              | subset(X4,X5) ) ) ) ),
    inference(skolemize,[status(esa)],[127]) ).

fof(129,plain,
    ! [X4,X5,X6] :
      ( ( ( ~ ilf_type(X6,set_type)
          | ~ member(X6,X4)
          | member(X6,X5)
          | ~ subset(X4,X5) )
        & ( ( ilf_type(esk9_2(X4,X5),set_type)
            & member(esk9_2(X4,X5),X4)
            & ~ member(esk9_2(X4,X5),X5) )
          | subset(X4,X5) ) )
      | ~ ilf_type(X5,set_type)
      | ~ ilf_type(X4,set_type) ),
    inference(shift_quantors,[status(thm)],[128]) ).

fof(130,plain,
    ! [X4,X5,X6] :
      ( ( ~ ilf_type(X6,set_type)
        | ~ member(X6,X4)
        | member(X6,X5)
        | ~ subset(X4,X5)
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) )
      & ( ilf_type(esk9_2(X4,X5),set_type)
        | subset(X4,X5)
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) )
      & ( member(esk9_2(X4,X5),X4)
        | subset(X4,X5)
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) )
      & ( ~ member(esk9_2(X4,X5),X5)
        | subset(X4,X5)
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) ) ),
    inference(distribute,[status(thm)],[129]) ).

cnf(131,plain,
    ( subset(X1,X2)
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X2,set_type)
    | ~ member(esk9_2(X1,X2),X2) ),
    inference(split_conjunct,[status(thm)],[130]) ).

cnf(132,plain,
    ( subset(X1,X2)
    | member(esk9_2(X1,X2),X1)
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X2,set_type) ),
    inference(split_conjunct,[status(thm)],[130]) ).

fof(138,plain,
    ! [X1] :
      ( ~ ilf_type(X1,set_type)
      | ! [X2] :
          ( ~ ilf_type(X2,set_type)
          | ( ( ~ member(X1,power_set(X2))
              | ! [X3] :
                  ( ~ ilf_type(X3,set_type)
                  | ~ member(X3,X1)
                  | member(X3,X2) ) )
            & ( ? [X3] :
                  ( ilf_type(X3,set_type)
                  & member(X3,X1)
                  & ~ member(X3,X2) )
              | member(X1,power_set(X2)) ) ) ) ),
    inference(fof_nnf,[status(thm)],[20]) ).

fof(139,plain,
    ! [X4] :
      ( ~ ilf_type(X4,set_type)
      | ! [X5] :
          ( ~ ilf_type(X5,set_type)
          | ( ( ~ member(X4,power_set(X5))
              | ! [X6] :
                  ( ~ ilf_type(X6,set_type)
                  | ~ member(X6,X4)
                  | member(X6,X5) ) )
            & ( ? [X7] :
                  ( ilf_type(X7,set_type)
                  & member(X7,X4)
                  & ~ member(X7,X5) )
              | member(X4,power_set(X5)) ) ) ) ),
    inference(variable_rename,[status(thm)],[138]) ).

fof(140,plain,
    ! [X4] :
      ( ~ ilf_type(X4,set_type)
      | ! [X5] :
          ( ~ ilf_type(X5,set_type)
          | ( ( ~ member(X4,power_set(X5))
              | ! [X6] :
                  ( ~ ilf_type(X6,set_type)
                  | ~ member(X6,X4)
                  | member(X6,X5) ) )
            & ( ( ilf_type(esk10_2(X4,X5),set_type)
                & member(esk10_2(X4,X5),X4)
                & ~ member(esk10_2(X4,X5),X5) )
              | member(X4,power_set(X5)) ) ) ) ),
    inference(skolemize,[status(esa)],[139]) ).

fof(141,plain,
    ! [X4,X5,X6] :
      ( ( ( ~ ilf_type(X6,set_type)
          | ~ member(X6,X4)
          | member(X6,X5)
          | ~ member(X4,power_set(X5)) )
        & ( ( ilf_type(esk10_2(X4,X5),set_type)
            & member(esk10_2(X4,X5),X4)
            & ~ member(esk10_2(X4,X5),X5) )
          | member(X4,power_set(X5)) ) )
      | ~ ilf_type(X5,set_type)
      | ~ ilf_type(X4,set_type) ),
    inference(shift_quantors,[status(thm)],[140]) ).

fof(142,plain,
    ! [X4,X5,X6] :
      ( ( ~ ilf_type(X6,set_type)
        | ~ member(X6,X4)
        | member(X6,X5)
        | ~ member(X4,power_set(X5))
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) )
      & ( ilf_type(esk10_2(X4,X5),set_type)
        | member(X4,power_set(X5))
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) )
      & ( member(esk10_2(X4,X5),X4)
        | member(X4,power_set(X5))
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) )
      & ( ~ member(esk10_2(X4,X5),X5)
        | member(X4,power_set(X5))
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) ) ),
    inference(distribute,[status(thm)],[141]) ).

cnf(146,plain,
    ( member(X3,X2)
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X2,set_type)
    | ~ member(X1,power_set(X2))
    | ~ member(X3,X1)
    | ~ ilf_type(X3,set_type) ),
    inference(split_conjunct,[status(thm)],[142]) ).

fof(147,plain,
    ! [X2] : ilf_type(X2,set_type),
    inference(variable_rename,[status(thm)],[21]) ).

cnf(148,plain,
    ilf_type(X1,set_type),
    inference(split_conjunct,[status(thm)],[147]) ).

fof(149,negated_conjecture,
    ? [X1] :
      ( ilf_type(X1,set_type)
      & ? [X2] :
          ( ilf_type(X2,set_type)
          & ? [X3] :
              ( ilf_type(X3,relation_type(X1,X2))
              & intersection(X3,cross_product(X1,X2)) != X3 ) ) ),
    inference(fof_nnf,[status(thm)],[32]) ).

fof(150,negated_conjecture,
    ? [X4] :
      ( ilf_type(X4,set_type)
      & ? [X5] :
          ( ilf_type(X5,set_type)
          & ? [X6] :
              ( ilf_type(X6,relation_type(X4,X5))
              & intersection(X6,cross_product(X4,X5)) != X6 ) ) ),
    inference(variable_rename,[status(thm)],[149]) ).

fof(151,negated_conjecture,
    ( ilf_type(esk11_0,set_type)
    & ilf_type(esk12_0,set_type)
    & ilf_type(esk13_0,relation_type(esk11_0,esk12_0))
    & intersection(esk13_0,cross_product(esk11_0,esk12_0)) != esk13_0 ),
    inference(skolemize,[status(esa)],[150]) ).

cnf(152,negated_conjecture,
    intersection(esk13_0,cross_product(esk11_0,esk12_0)) != esk13_0,
    inference(split_conjunct,[status(thm)],[151]) ).

cnf(153,negated_conjecture,
    ilf_type(esk13_0,relation_type(esk11_0,esk12_0)),
    inference(split_conjunct,[status(thm)],[151]) ).

fof(171,plain,
    ! [X1] :
      ( ~ ilf_type(X1,set_type)
      | ! [X2] :
          ( ~ ilf_type(X2,set_type)
          | ~ subset(X1,X2)
          | intersection(X1,X2) = X1 ) ),
    inference(fof_nnf,[status(thm)],[25]) ).

fof(172,plain,
    ! [X3] :
      ( ~ ilf_type(X3,set_type)
      | ! [X4] :
          ( ~ ilf_type(X4,set_type)
          | ~ subset(X3,X4)
          | intersection(X3,X4) = X3 ) ),
    inference(variable_rename,[status(thm)],[171]) ).

fof(173,plain,
    ! [X3,X4] :
      ( ~ ilf_type(X4,set_type)
      | ~ subset(X3,X4)
      | intersection(X3,X4) = X3
      | ~ ilf_type(X3,set_type) ),
    inference(shift_quantors,[status(thm)],[172]) ).

cnf(174,plain,
    ( intersection(X1,X2) = X1
    | ~ ilf_type(X1,set_type)
    | ~ subset(X1,X2)
    | ~ ilf_type(X2,set_type) ),
    inference(split_conjunct,[status(thm)],[173]) ).

fof(175,plain,
    ! [X1] :
      ( ~ ilf_type(X1,set_type)
      | ! [X2] :
          ( ~ ilf_type(X2,set_type)
          | ( ! [X3] :
                ( ~ ilf_type(X3,subset_type(cross_product(X1,X2)))
                | ilf_type(X3,relation_type(X1,X2)) )
            & ! [X4] :
                ( ~ ilf_type(X4,relation_type(X1,X2))
                | ilf_type(X4,subset_type(cross_product(X1,X2))) ) ) ) ),
    inference(fof_nnf,[status(thm)],[26]) ).

fof(176,plain,
    ! [X5] :
      ( ~ ilf_type(X5,set_type)
      | ! [X6] :
          ( ~ ilf_type(X6,set_type)
          | ( ! [X7] :
                ( ~ ilf_type(X7,subset_type(cross_product(X5,X6)))
                | ilf_type(X7,relation_type(X5,X6)) )
            & ! [X8] :
                ( ~ ilf_type(X8,relation_type(X5,X6))
                | ilf_type(X8,subset_type(cross_product(X5,X6))) ) ) ) ),
    inference(variable_rename,[status(thm)],[175]) ).

fof(177,plain,
    ! [X5,X6,X7,X8] :
      ( ( ( ~ ilf_type(X8,relation_type(X5,X6))
          | ilf_type(X8,subset_type(cross_product(X5,X6))) )
        & ( ~ ilf_type(X7,subset_type(cross_product(X5,X6)))
          | ilf_type(X7,relation_type(X5,X6)) ) )
      | ~ ilf_type(X6,set_type)
      | ~ ilf_type(X5,set_type) ),
    inference(shift_quantors,[status(thm)],[176]) ).

fof(178,plain,
    ! [X5,X6,X7,X8] :
      ( ( ~ ilf_type(X8,relation_type(X5,X6))
        | ilf_type(X8,subset_type(cross_product(X5,X6)))
        | ~ ilf_type(X6,set_type)
        | ~ ilf_type(X5,set_type) )
      & ( ~ ilf_type(X7,subset_type(cross_product(X5,X6)))
        | ilf_type(X7,relation_type(X5,X6))
        | ~ ilf_type(X6,set_type)
        | ~ ilf_type(X5,set_type) ) ),
    inference(distribute,[status(thm)],[177]) ).

cnf(180,plain,
    ( ilf_type(X3,subset_type(cross_product(X1,X2)))
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X2,set_type)
    | ~ ilf_type(X3,relation_type(X1,X2)) ),
    inference(split_conjunct,[status(thm)],[178]) ).

fof(186,plain,
    ! [X1] :
      ( ~ ilf_type(X1,set_type)
      | ! [X2] :
          ( ~ ilf_type(X2,set_type)
          | ! [X3] :
              ( ~ ilf_type(X3,set_type)
              | ( ( ~ 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)],[28]) ).

fof(187,plain,
    ! [X4] :
      ( ~ ilf_type(X4,set_type)
      | ! [X5] :
          ( ~ ilf_type(X5,set_type)
          | ! [X6] :
              ( ~ ilf_type(X6,set_type)
              | ( ( ~ member(X6,intersection(X4,X5))
                  | ( member(X6,X4)
                    & member(X6,X5) ) )
                & ( ~ member(X6,X4)
                  | ~ member(X6,X5)
                  | member(X6,intersection(X4,X5)) ) ) ) ) ),
    inference(variable_rename,[status(thm)],[186]) ).

fof(188,plain,
    ! [X4,X5,X6] :
      ( ~ ilf_type(X6,set_type)
      | ( ( ~ member(X6,intersection(X4,X5))
          | ( member(X6,X4)
            & member(X6,X5) ) )
        & ( ~ member(X6,X4)
          | ~ member(X6,X5)
          | member(X6,intersection(X4,X5)) ) )
      | ~ ilf_type(X5,set_type)
      | ~ ilf_type(X4,set_type) ),
    inference(shift_quantors,[status(thm)],[187]) ).

fof(189,plain,
    ! [X4,X5,X6] :
      ( ( member(X6,X4)
        | ~ member(X6,intersection(X4,X5))
        | ~ ilf_type(X6,set_type)
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) )
      & ( member(X6,X5)
        | ~ member(X6,intersection(X4,X5))
        | ~ ilf_type(X6,set_type)
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) )
      & ( ~ member(X6,X4)
        | ~ member(X6,X5)
        | member(X6,intersection(X4,X5))
        | ~ ilf_type(X6,set_type)
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) ) ),
    inference(distribute,[status(thm)],[188]) ).

cnf(192,plain,
    ( member(X3,X1)
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X2,set_type)
    | ~ ilf_type(X3,set_type)
    | ~ member(X3,intersection(X1,X2)) ),
    inference(split_conjunct,[status(thm)],[189]) ).

cnf(216,plain,
    ( ~ empty(power_set(X1))
    | $false ),
    inference(rw,[status(thm)],[73,148,theory(equality)]) ).

cnf(217,plain,
    ~ empty(power_set(X1)),
    inference(cn,[status(thm)],[216,theory(equality)]) ).

cnf(257,plain,
    ( ~ empty(X1)
    | ~ member(X2,X1)
    | $false
    | ~ ilf_type(X1,set_type) ),
    inference(rw,[status(thm)],[62,148,theory(equality)]) ).

cnf(258,plain,
    ( ~ empty(X1)
    | ~ member(X2,X1)
    | $false
    | $false ),
    inference(rw,[status(thm)],[257,148,theory(equality)]) ).

cnf(259,plain,
    ( ~ empty(X1)
    | ~ member(X2,X1) ),
    inference(cn,[status(thm)],[258,theory(equality)]) ).

cnf(269,plain,
    ( intersection(X1,X2) = X1
    | ~ subset(X1,X2)
    | $false
    | ~ ilf_type(X1,set_type) ),
    inference(rw,[status(thm)],[174,148,theory(equality)]) ).

cnf(270,plain,
    ( intersection(X1,X2) = X1
    | ~ subset(X1,X2)
    | $false
    | $false ),
    inference(rw,[status(thm)],[269,148,theory(equality)]) ).

cnf(271,plain,
    ( intersection(X1,X2) = X1
    | ~ subset(X1,X2) ),
    inference(cn,[status(thm)],[270,theory(equality)]) ).

cnf(283,plain,
    ( subset(X1,X2)
    | member(esk9_2(X1,X2),X1)
    | $false
    | ~ ilf_type(X1,set_type) ),
    inference(rw,[status(thm)],[132,148,theory(equality)]) ).

cnf(284,plain,
    ( subset(X1,X2)
    | member(esk9_2(X1,X2),X1)
    | $false
    | $false ),
    inference(rw,[status(thm)],[283,148,theory(equality)]) ).

cnf(285,plain,
    ( subset(X1,X2)
    | member(esk9_2(X1,X2),X1) ),
    inference(cn,[status(thm)],[284,theory(equality)]) ).

cnf(291,plain,
    ( empty(X2)
    | ilf_type(X1,member_type(X2))
    | ~ member(X1,X2)
    | $false
    | ~ ilf_type(X1,set_type) ),
    inference(rw,[status(thm)],[67,148,theory(equality)]) ).

cnf(292,plain,
    ( empty(X2)
    | ilf_type(X1,member_type(X2))
    | ~ member(X1,X2)
    | $false
    | $false ),
    inference(rw,[status(thm)],[291,148,theory(equality)]) ).

cnf(293,plain,
    ( empty(X2)
    | ilf_type(X1,member_type(X2))
    | ~ member(X1,X2) ),
    inference(cn,[status(thm)],[292,theory(equality)]) ).

cnf(294,plain,
    ( ilf_type(X1,member_type(X2))
    | ~ member(X1,X2) ),
    inference(csr,[status(thm)],[293,259]) ).

cnf(298,plain,
    ( ilf_type(X2,member_type(power_set(X1)))
    | $false
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X2,subset_type(X1)) ),
    inference(rw,[status(thm)],[114,148,theory(equality)]) ).

cnf(299,plain,
    ( ilf_type(X2,member_type(power_set(X1)))
    | $false
    | $false
    | ~ ilf_type(X2,subset_type(X1)) ),
    inference(rw,[status(thm)],[298,148,theory(equality)]) ).

cnf(300,plain,
    ( ilf_type(X2,member_type(power_set(X1)))
    | ~ ilf_type(X2,subset_type(X1)) ),
    inference(cn,[status(thm)],[299,theory(equality)]) ).

cnf(307,plain,
    ( subset(X1,X2)
    | $false
    | ~ ilf_type(X1,set_type)
    | ~ member(esk9_2(X1,X2),X2) ),
    inference(rw,[status(thm)],[131,148,theory(equality)]) ).

cnf(308,plain,
    ( subset(X1,X2)
    | $false
    | $false
    | ~ member(esk9_2(X1,X2),X2) ),
    inference(rw,[status(thm)],[307,148,theory(equality)]) ).

cnf(309,plain,
    ( subset(X1,X2)
    | ~ member(esk9_2(X1,X2),X2) ),
    inference(cn,[status(thm)],[308,theory(equality)]) ).

cnf(312,plain,
    ( empty(X2)
    | member(X1,X2)
    | $false
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X1,member_type(X2)) ),
    inference(rw,[status(thm)],[68,148,theory(equality)]) ).

cnf(313,plain,
    ( empty(X2)
    | member(X1,X2)
    | $false
    | $false
    | ~ ilf_type(X1,member_type(X2)) ),
    inference(rw,[status(thm)],[312,148,theory(equality)]) ).

cnf(314,plain,
    ( empty(X2)
    | member(X1,X2)
    | ~ ilf_type(X1,member_type(X2)) ),
    inference(cn,[status(thm)],[313,theory(equality)]) ).

cnf(316,plain,
    ( empty(power_set(X1))
    | member(X2,power_set(X1))
    | ~ ilf_type(X2,subset_type(X1)) ),
    inference(spm,[status(thm)],[314,300,theory(equality)]) ).

cnf(317,plain,
    ( member(X2,power_set(X1))
    | ~ ilf_type(X2,subset_type(X1)) ),
    inference(sr,[status(thm)],[316,217,theory(equality)]) ).

cnf(354,plain,
    ( ilf_type(X3,subset_type(cross_product(X1,X2)))
    | $false
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X3,relation_type(X1,X2)) ),
    inference(rw,[status(thm)],[180,148,theory(equality)]) ).

cnf(355,plain,
    ( ilf_type(X3,subset_type(cross_product(X1,X2)))
    | $false
    | $false
    | ~ ilf_type(X3,relation_type(X1,X2)) ),
    inference(rw,[status(thm)],[354,148,theory(equality)]) ).

cnf(356,plain,
    ( ilf_type(X3,subset_type(cross_product(X1,X2)))
    | ~ ilf_type(X3,relation_type(X1,X2)) ),
    inference(cn,[status(thm)],[355,theory(equality)]) ).

cnf(363,plain,
    ( member(X3,X1)
    | $false
    | ~ ilf_type(X2,set_type)
    | ~ ilf_type(X1,set_type)
    | ~ member(X3,intersection(X1,X2)) ),
    inference(rw,[status(thm)],[192,148,theory(equality)]) ).

cnf(364,plain,
    ( member(X3,X1)
    | $false
    | $false
    | ~ ilf_type(X1,set_type)
    | ~ member(X3,intersection(X1,X2)) ),
    inference(rw,[status(thm)],[363,148,theory(equality)]) ).

cnf(365,plain,
    ( member(X3,X1)
    | $false
    | $false
    | $false
    | ~ member(X3,intersection(X1,X2)) ),
    inference(rw,[status(thm)],[364,148,theory(equality)]) ).

cnf(366,plain,
    ( member(X3,X1)
    | ~ member(X3,intersection(X1,X2)) ),
    inference(cn,[status(thm)],[365,theory(equality)]) ).

cnf(373,plain,
    ( X1 = X2
    | member(esk5_2(X1,X2),X2)
    | member(esk5_2(X1,X2),X1)
    | $false
    | ~ ilf_type(X1,set_type) ),
    inference(rw,[status(thm)],[79,148,theory(equality)]) ).

cnf(374,plain,
    ( X1 = X2
    | member(esk5_2(X1,X2),X2)
    | member(esk5_2(X1,X2),X1)
    | $false
    | $false ),
    inference(rw,[status(thm)],[373,148,theory(equality)]) ).

cnf(375,plain,
    ( X1 = X2
    | member(esk5_2(X1,X2),X2)
    | member(esk5_2(X1,X2),X1) ),
    inference(cn,[status(thm)],[374,theory(equality)]) ).

cnf(384,plain,
    ( member(esk5_2(intersection(X1,X2),X3),X1)
    | intersection(X1,X2) = X3
    | member(esk5_2(intersection(X1,X2),X3),X3) ),
    inference(spm,[status(thm)],[366,375,theory(equality)]) ).

cnf(404,plain,
    ( member(X3,X2)
    | ~ member(X3,X1)
    | $false
    | ~ ilf_type(X2,set_type)
    | ~ ilf_type(X1,set_type)
    | ~ member(X1,power_set(X2)) ),
    inference(rw,[status(thm)],[146,148,theory(equality)]) ).

cnf(405,plain,
    ( member(X3,X2)
    | ~ member(X3,X1)
    | $false
    | $false
    | ~ ilf_type(X1,set_type)
    | ~ member(X1,power_set(X2)) ),
    inference(rw,[status(thm)],[404,148,theory(equality)]) ).

cnf(406,plain,
    ( member(X3,X2)
    | ~ member(X3,X1)
    | $false
    | $false
    | $false
    | ~ member(X1,power_set(X2)) ),
    inference(rw,[status(thm)],[405,148,theory(equality)]) ).

cnf(407,plain,
    ( member(X3,X2)
    | ~ member(X3,X1)
    | ~ member(X1,power_set(X2)) ),
    inference(cn,[status(thm)],[406,theory(equality)]) ).

cnf(540,plain,
    ( member(X1,power_set(cross_product(X2,X3)))
    | ~ ilf_type(X1,relation_type(X2,X3)) ),
    inference(spm,[status(thm)],[317,356,theory(equality)]) ).

cnf(1294,plain,
    ( intersection(X4,X5) = X4
    | member(esk5_2(intersection(X4,X5),X4),X4) ),
    inference(ef,[status(thm)],[384,theory(equality)]) ).

cnf(4472,plain,
    ( member(X1,cross_product(X2,X3))
    | ~ member(X1,X4)
    | ~ ilf_type(X4,relation_type(X2,X3)) ),
    inference(spm,[status(thm)],[407,540,theory(equality)]) ).

cnf(1270804,negated_conjecture,
    ( member(X1,cross_product(esk11_0,esk12_0))
    | ~ member(X1,esk13_0) ),
    inference(spm,[status(thm)],[4472,153,theory(equality)]) ).

cnf(1270878,negated_conjecture,
    ( ~ empty(cross_product(esk11_0,esk12_0))
    | ~ member(X1,esk13_0) ),
    inference(spm,[status(thm)],[259,1270804,theory(equality)]) ).

cnf(1270879,negated_conjecture,
    ( ilf_type(X1,member_type(cross_product(esk11_0,esk12_0)))
    | ~ member(X1,esk13_0) ),
    inference(spm,[status(thm)],[294,1270804,theory(equality)]) ).

cnf(1271005,negated_conjecture,
    ( ilf_type(esk9_2(esk13_0,X1),member_type(cross_product(esk11_0,esk12_0)))
    | subset(esk13_0,X1) ),
    inference(spm,[status(thm)],[1270879,285,theory(equality)]) ).

cnf(1271967,negated_conjecture,
    ( empty(cross_product(esk11_0,esk12_0))
    | member(esk9_2(esk13_0,X1),cross_product(esk11_0,esk12_0))
    | subset(esk13_0,X1) ),
    inference(spm,[status(thm)],[314,1271005,theory(equality)]) ).

cnf(1289054,negated_conjecture,
    ( subset(esk13_0,cross_product(esk11_0,esk12_0))
    | empty(cross_product(esk11_0,esk12_0)) ),
    inference(spm,[status(thm)],[309,1271967,theory(equality)]) ).

cnf(1289072,negated_conjecture,
    ( intersection(esk13_0,cross_product(esk11_0,esk12_0)) = esk13_0
    | empty(cross_product(esk11_0,esk12_0)) ),
    inference(spm,[status(thm)],[271,1289054,theory(equality)]) ).

cnf(1289074,negated_conjecture,
    empty(cross_product(esk11_0,esk12_0)),
    inference(sr,[status(thm)],[1289072,152,theory(equality)]) ).

cnf(1289247,negated_conjecture,
    ( $false
    | ~ member(X1,esk13_0) ),
    inference(rw,[status(thm)],[1270878,1289074,theory(equality)]) ).

cnf(1289248,negated_conjecture,
    ~ member(X1,esk13_0),
    inference(cn,[status(thm)],[1289247,theory(equality)]) ).

cnf(1289402,negated_conjecture,
    intersection(esk13_0,X1) = esk13_0,
    inference(spm,[status(thm)],[1289248,1294,theory(equality)]) ).

cnf(1297579,negated_conjecture,
    $false,
    inference(rw,[status(thm)],[152,1289402,theory(equality)]) ).

cnf(1297580,negated_conjecture,
    $false,
    inference(cn,[status(thm)],[1297579,theory(equality)]) ).

cnf(1297581,negated_conjecture,
    $false,
    1297580,
    [proof] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% % SZS status Started for /home/graph/tptp/TPTP/Problems/SET/SET656+3.p
% --creating new selector for []
% eprover: CPU time limit exceeded, terminating
% -running prover on /tmp/tmpnebYKB/sel_SET656+3.p_1 with time limit 29
% -prover status ResourceOut
% -running prover on /tmp/tmpnebYKB/sel_SET656+3.p_2 with time limit 80
% -prover status Theorem
% Problem SET656+3.p solved in phase 1.
% % SZS status Theorem for /home/graph/tptp/TPTP/Problems/SET/SET656+3.p
% % SZS status Ended for /home/graph/tptp/TPTP/Problems/SET/SET656+3.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
% 
%------------------------------------------------------------------------------