TSTP Solution File: SET664+3 by SInE---0.4

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SInE---0.4
% Problem  : SET664+3 : TPTP v5.0.0. Released v2.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : Source/sine.py -e eprover -t %d %s

% Computer : art04.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 03:08:48 EST 2010

% Result   : Theorem 0.25s
% Output   : CNFRefutation 0.25s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   29
%            Number of leaves      :   15
% Syntax   : Number of formulae    :  168 (  25 unt;   0 def)
%            Number of atoms       :  703 (  33 equ)
%            Maximal formula atoms :   18 (   4 avg)
%            Number of connectives :  882 ( 347   ~; 395   |;  87   &)
%                                         (   8 <=>;  45  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   11 (   5 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    7 (   5 usr;   1 prp; 0-2 aty)
%            Number of functors    :   16 (  16 usr;   6 con; 0-2 aty)
%            Number of variables   :  325 (  25 sgn 147   !;  12   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(1,conjecture,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ! [X2] :
          ( ilf_type(X2,set_type)
         => ! [X3] :
              ( ilf_type(X3,relation_type(X2,X1))
             => ( ilf_type(X3,relation_type(X2,empty_set))
               => X3 = empty_set ) ) ) ),
    file('/tmp/tmpB1RB_6/sel_SET664+3.p_1',prove_relset_1_27) ).

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/tmpB1RB_6/sel_SET664+3.p_1',p24) ).

fof(8,axiom,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ( empty(X1)
      <=> ! [X2] :
            ( ilf_type(X2,set_type)
           => ~ member(X2,X1) ) ) ),
    file('/tmp/tmpB1RB_6/sel_SET664+3.p_1',p21) ).

fof(10,axiom,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ( ~ empty(power_set(X1))
        & ilf_type(power_set(X1),set_type) ) ),
    file('/tmp/tmpB1RB_6/sel_SET664+3.p_1',p23) ).

fof(11,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/tmpB1RB_6/sel_SET664+3.p_1',p22) ).

fof(13,axiom,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ! [X2] :
          ( ilf_type(X2,set_type)
         => ! [X3] :
              ( ilf_type(X3,subset_type(cross_product(X1,X2)))
             => relation_like(X3) ) ) ),
    file('/tmp/tmpB1RB_6/sel_SET664+3.p_1',p28) ).

fof(14,axiom,
    ! [X1] : ilf_type(X1,set_type),
    file('/tmp/tmpB1RB_6/sel_SET664+3.p_1',p33) ).

fof(19,axiom,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ( ilf_type(X1,binary_relation_type)
      <=> ( relation_like(X1)
          & ilf_type(X1,set_type) ) ) ),
    file('/tmp/tmpB1RB_6/sel_SET664+3.p_1',p13) ).

fof(21,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/tmpB1RB_6/sel_SET664+3.p_1',p15) ).

fof(25,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/tmpB1RB_6/sel_SET664+3.p_1',p19) ).

fof(28,axiom,
    ! [X1] :
      ( ilf_type(X1,binary_relation_type)
     => ( ( domain_of(X1) = empty_set
          | range_of(X1) = empty_set )
       => X1 = empty_set ) ),
    file('/tmp/tmpB1RB_6/sel_SET664+3.p_1',p2) ).

fof(29,axiom,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ! [X2] :
          ( ilf_type(X2,set_type)
         => ! [X3] :
              ( ilf_type(X3,relation_type(X1,X2))
             => ( subset(domain_of(X3),X1)
                & subset(range_of(X3),X2) ) ) ) ),
    file('/tmp/tmpB1RB_6/sel_SET664+3.p_1',p3) ).

fof(30,axiom,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ( subset(X1,empty_set)
       => X1 = empty_set ) ),
    file('/tmp/tmpB1RB_6/sel_SET664+3.p_1',p1) ).

fof(31,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/tmpB1RB_6/sel_SET664+3.p_1',p6) ).

fof(33,axiom,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ~ member(X1,empty_set) ),
    file('/tmp/tmpB1RB_6/sel_SET664+3.p_1',p4) ).

fof(36,negated_conjecture,
    ~ ! [X1] :
        ( ilf_type(X1,set_type)
       => ! [X2] :
            ( ilf_type(X2,set_type)
           => ! [X3] :
                ( ilf_type(X3,relation_type(X2,X1))
               => ( ilf_type(X3,relation_type(X2,empty_set))
                 => X3 = empty_set ) ) ) ),
    inference(assume_negation,[status(cth)],[1]) ).

fof(38,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(39,plain,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ( empty(X1)
      <=> ! [X2] :
            ( ilf_type(X2,set_type)
           => ~ member(X2,X1) ) ) ),
    inference(fof_simplification,[status(thm)],[8,theory(equality)]) ).

fof(40,plain,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ( ~ empty(power_set(X1))
        & ilf_type(power_set(X1),set_type) ) ),
    inference(fof_simplification,[status(thm)],[10,theory(equality)]) ).

fof(41,plain,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ~ member(X1,empty_set) ),
    inference(fof_simplification,[status(thm)],[33,theory(equality)]) ).

fof(42,negated_conjecture,
    ? [X1] :
      ( ilf_type(X1,set_type)
      & ? [X2] :
          ( ilf_type(X2,set_type)
          & ? [X3] :
              ( ilf_type(X3,relation_type(X2,X1))
              & ilf_type(X3,relation_type(X2,empty_set))
              & X3 != empty_set ) ) ),
    inference(fof_nnf,[status(thm)],[36]) ).

fof(43,negated_conjecture,
    ? [X4] :
      ( ilf_type(X4,set_type)
      & ? [X5] :
          ( ilf_type(X5,set_type)
          & ? [X6] :
              ( ilf_type(X6,relation_type(X5,X4))
              & ilf_type(X6,relation_type(X5,empty_set))
              & X6 != empty_set ) ) ),
    inference(variable_rename,[status(thm)],[42]) ).

fof(44,negated_conjecture,
    ( ilf_type(esk1_0,set_type)
    & ilf_type(esk2_0,set_type)
    & ilf_type(esk3_0,relation_type(esk2_0,esk1_0))
    & ilf_type(esk3_0,relation_type(esk2_0,empty_set))
    & esk3_0 != empty_set ),
    inference(skolemize,[status(esa)],[43]) ).

cnf(45,negated_conjecture,
    esk3_0 != empty_set,
    inference(split_conjunct,[status(thm)],[44]) ).

cnf(46,negated_conjecture,
    ilf_type(esk3_0,relation_type(esk2_0,empty_set)),
    inference(split_conjunct,[status(thm)],[44]) ).

fof(56,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)],[38]) ).

fof(57,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)],[56]) ).

fof(58,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)],[57]) ).

fof(59,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)],[58]) ).

cnf(60,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)],[59]) ).

cnf(61,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)],[59]) ).

fof(76,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)],[39]) ).

fof(77,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)],[76]) ).

fof(78,plain,
    ! [X3] :
      ( ~ ilf_type(X3,set_type)
      | ( ( ~ empty(X3)
          | ! [X4] :
              ( ~ ilf_type(X4,set_type)
              | ~ member(X4,X3) ) )
        & ( ( ilf_type(esk8_1(X3),set_type)
            & member(esk8_1(X3),X3) )
          | empty(X3) ) ) ),
    inference(skolemize,[status(esa)],[77]) ).

fof(79,plain,
    ! [X3,X4] :
      ( ( ( ~ ilf_type(X4,set_type)
          | ~ member(X4,X3)
          | ~ empty(X3) )
        & ( ( ilf_type(esk8_1(X3),set_type)
            & member(esk8_1(X3),X3) )
          | empty(X3) ) )
      | ~ ilf_type(X3,set_type) ),
    inference(shift_quantors,[status(thm)],[78]) ).

fof(80,plain,
    ! [X3,X4] :
      ( ( ~ ilf_type(X4,set_type)
        | ~ member(X4,X3)
        | ~ empty(X3)
        | ~ ilf_type(X3,set_type) )
      & ( ilf_type(esk8_1(X3),set_type)
        | empty(X3)
        | ~ ilf_type(X3,set_type) )
      & ( member(esk8_1(X3),X3)
        | empty(X3)
        | ~ ilf_type(X3,set_type) ) ),
    inference(distribute,[status(thm)],[79]) ).

cnf(81,plain,
    ( empty(X1)
    | member(esk8_1(X1),X1)
    | ~ ilf_type(X1,set_type) ),
    inference(split_conjunct,[status(thm)],[80]) ).

cnf(83,plain,
    ( ~ ilf_type(X1,set_type)
    | ~ empty(X1)
    | ~ member(X2,X1)
    | ~ ilf_type(X2,set_type) ),
    inference(split_conjunct,[status(thm)],[80]) ).

fof(87,plain,
    ! [X1] :
      ( ~ ilf_type(X1,set_type)
      | ( ~ empty(power_set(X1))
        & ilf_type(power_set(X1),set_type) ) ),
    inference(fof_nnf,[status(thm)],[40]) ).

fof(88,plain,
    ! [X2] :
      ( ~ ilf_type(X2,set_type)
      | ( ~ empty(power_set(X2))
        & ilf_type(power_set(X2),set_type) ) ),
    inference(variable_rename,[status(thm)],[87]) ).

fof(89,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)],[88]) ).

cnf(91,plain,
    ( ~ ilf_type(X1,set_type)
    | ~ empty(power_set(X1)) ),
    inference(split_conjunct,[status(thm)],[89]) ).

fof(92,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)],[11]) ).

fof(93,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)],[92]) ).

fof(94,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(esk9_2(X4,X5),set_type)
                & member(esk9_2(X4,X5),X4)
                & ~ member(esk9_2(X4,X5),X5) )
              | member(X4,power_set(X5)) ) ) ) ),
    inference(skolemize,[status(esa)],[93]) ).

fof(95,plain,
    ! [X4,X5,X6] :
      ( ( ( ~ ilf_type(X6,set_type)
          | ~ member(X6,X4)
          | member(X6,X5)
          | ~ member(X4,power_set(X5)) )
        & ( ( ilf_type(esk9_2(X4,X5),set_type)
            & member(esk9_2(X4,X5),X4)
            & ~ member(esk9_2(X4,X5),X5) )
          | member(X4,power_set(X5)) ) )
      | ~ ilf_type(X5,set_type)
      | ~ ilf_type(X4,set_type) ),
    inference(shift_quantors,[status(thm)],[94]) ).

fof(96,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(esk9_2(X4,X5),set_type)
        | member(X4,power_set(X5))
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) )
      & ( member(esk9_2(X4,X5),X4)
        | member(X4,power_set(X5))
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) )
      & ( ~ member(esk9_2(X4,X5),X5)
        | member(X4,power_set(X5))
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) ) ),
    inference(distribute,[status(thm)],[95]) ).

cnf(97,plain,
    ( member(X1,power_set(X2))
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X2,set_type)
    | ~ member(esk9_2(X1,X2),X2) ),
    inference(split_conjunct,[status(thm)],[96]) ).

cnf(98,plain,
    ( member(X1,power_set(X2))
    | member(esk9_2(X1,X2),X1)
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X2,set_type) ),
    inference(split_conjunct,[status(thm)],[96]) ).

cnf(100,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)],[96]) ).

fof(105,plain,
    ! [X1] :
      ( ~ ilf_type(X1,set_type)
      | ! [X2] :
          ( ~ ilf_type(X2,set_type)
          | ! [X3] :
              ( ~ ilf_type(X3,subset_type(cross_product(X1,X2)))
              | relation_like(X3) ) ) ),
    inference(fof_nnf,[status(thm)],[13]) ).

fof(106,plain,
    ! [X4] :
      ( ~ ilf_type(X4,set_type)
      | ! [X5] :
          ( ~ ilf_type(X5,set_type)
          | ! [X6] :
              ( ~ ilf_type(X6,subset_type(cross_product(X4,X5)))
              | relation_like(X6) ) ) ),
    inference(variable_rename,[status(thm)],[105]) ).

fof(107,plain,
    ! [X4,X5,X6] :
      ( ~ ilf_type(X6,subset_type(cross_product(X4,X5)))
      | relation_like(X6)
      | ~ ilf_type(X5,set_type)
      | ~ ilf_type(X4,set_type) ),
    inference(shift_quantors,[status(thm)],[106]) ).

cnf(108,plain,
    ( relation_like(X3)
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X2,set_type)
    | ~ ilf_type(X3,subset_type(cross_product(X1,X2))) ),
    inference(split_conjunct,[status(thm)],[107]) ).

fof(109,plain,
    ! [X2] : ilf_type(X2,set_type),
    inference(variable_rename,[status(thm)],[14]) ).

cnf(110,plain,
    ilf_type(X1,set_type),
    inference(split_conjunct,[status(thm)],[109]) ).

fof(126,plain,
    ! [X1] :
      ( ~ ilf_type(X1,set_type)
      | ( ( ~ ilf_type(X1,binary_relation_type)
          | ( relation_like(X1)
            & ilf_type(X1,set_type) ) )
        & ( ~ relation_like(X1)
          | ~ ilf_type(X1,set_type)
          | ilf_type(X1,binary_relation_type) ) ) ),
    inference(fof_nnf,[status(thm)],[19]) ).

fof(127,plain,
    ! [X2] :
      ( ~ ilf_type(X2,set_type)
      | ( ( ~ ilf_type(X2,binary_relation_type)
          | ( relation_like(X2)
            & ilf_type(X2,set_type) ) )
        & ( ~ relation_like(X2)
          | ~ ilf_type(X2,set_type)
          | ilf_type(X2,binary_relation_type) ) ) ),
    inference(variable_rename,[status(thm)],[126]) ).

fof(128,plain,
    ! [X2] :
      ( ( relation_like(X2)
        | ~ ilf_type(X2,binary_relation_type)
        | ~ ilf_type(X2,set_type) )
      & ( ilf_type(X2,set_type)
        | ~ ilf_type(X2,binary_relation_type)
        | ~ ilf_type(X2,set_type) )
      & ( ~ relation_like(X2)
        | ~ ilf_type(X2,set_type)
        | ilf_type(X2,binary_relation_type)
        | ~ ilf_type(X2,set_type) ) ),
    inference(distribute,[status(thm)],[127]) ).

cnf(129,plain,
    ( ilf_type(X1,binary_relation_type)
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X1,set_type)
    | ~ relation_like(X1) ),
    inference(split_conjunct,[status(thm)],[128]) ).

fof(135,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)],[21]) ).

fof(136,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)],[135]) ).

fof(137,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)],[136]) ).

fof(138,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)],[137]) ).

cnf(139,plain,
    ( ilf_type(X2,subset_type(X1))
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X2,set_type)
    | ~ ilf_type(X2,member_type(power_set(X1))) ),
    inference(split_conjunct,[status(thm)],[138]) ).

cnf(140,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)],[138]) ).

fof(152,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)],[25]) ).

fof(153,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)],[152]) ).

fof(154,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(esk12_2(X4,X5),set_type)
                & member(esk12_2(X4,X5),X4)
                & ~ member(esk12_2(X4,X5),X5) )
              | subset(X4,X5) ) ) ) ),
    inference(skolemize,[status(esa)],[153]) ).

fof(155,plain,
    ! [X4,X5,X6] :
      ( ( ( ~ ilf_type(X6,set_type)
          | ~ member(X6,X4)
          | member(X6,X5)
          | ~ subset(X4,X5) )
        & ( ( ilf_type(esk12_2(X4,X5),set_type)
            & member(esk12_2(X4,X5),X4)
            & ~ member(esk12_2(X4,X5),X5) )
          | subset(X4,X5) ) )
      | ~ ilf_type(X5,set_type)
      | ~ ilf_type(X4,set_type) ),
    inference(shift_quantors,[status(thm)],[154]) ).

fof(156,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(esk12_2(X4,X5),set_type)
        | subset(X4,X5)
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) )
      & ( member(esk12_2(X4,X5),X4)
        | subset(X4,X5)
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) )
      & ( ~ member(esk12_2(X4,X5),X5)
        | subset(X4,X5)
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) ) ),
    inference(distribute,[status(thm)],[155]) ).

cnf(158,plain,
    ( subset(X1,X2)
    | member(esk12_2(X1,X2),X1)
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X2,set_type) ),
    inference(split_conjunct,[status(thm)],[156]) ).

fof(169,plain,
    ! [X1] :
      ( ~ ilf_type(X1,binary_relation_type)
      | ( domain_of(X1) != empty_set
        & range_of(X1) != empty_set )
      | X1 = empty_set ),
    inference(fof_nnf,[status(thm)],[28]) ).

fof(170,plain,
    ! [X2] :
      ( ~ ilf_type(X2,binary_relation_type)
      | ( domain_of(X2) != empty_set
        & range_of(X2) != empty_set )
      | X2 = empty_set ),
    inference(variable_rename,[status(thm)],[169]) ).

fof(171,plain,
    ! [X2] :
      ( ( domain_of(X2) != empty_set
        | X2 = empty_set
        | ~ ilf_type(X2,binary_relation_type) )
      & ( range_of(X2) != empty_set
        | X2 = empty_set
        | ~ ilf_type(X2,binary_relation_type) ) ),
    inference(distribute,[status(thm)],[170]) ).

cnf(172,plain,
    ( X1 = empty_set
    | ~ ilf_type(X1,binary_relation_type)
    | range_of(X1) != empty_set ),
    inference(split_conjunct,[status(thm)],[171]) ).

fof(174,plain,
    ! [X1] :
      ( ~ ilf_type(X1,set_type)
      | ! [X2] :
          ( ~ ilf_type(X2,set_type)
          | ! [X3] :
              ( ~ ilf_type(X3,relation_type(X1,X2))
              | ( subset(domain_of(X3),X1)
                & subset(range_of(X3),X2) ) ) ) ),
    inference(fof_nnf,[status(thm)],[29]) ).

fof(175,plain,
    ! [X4] :
      ( ~ ilf_type(X4,set_type)
      | ! [X5] :
          ( ~ ilf_type(X5,set_type)
          | ! [X6] :
              ( ~ ilf_type(X6,relation_type(X4,X5))
              | ( subset(domain_of(X6),X4)
                & subset(range_of(X6),X5) ) ) ) ),
    inference(variable_rename,[status(thm)],[174]) ).

fof(176,plain,
    ! [X4,X5,X6] :
      ( ~ ilf_type(X6,relation_type(X4,X5))
      | ( subset(domain_of(X6),X4)
        & subset(range_of(X6),X5) )
      | ~ ilf_type(X5,set_type)
      | ~ ilf_type(X4,set_type) ),
    inference(shift_quantors,[status(thm)],[175]) ).

fof(177,plain,
    ! [X4,X5,X6] :
      ( ( subset(domain_of(X6),X4)
        | ~ ilf_type(X6,relation_type(X4,X5))
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) )
      & ( subset(range_of(X6),X5)
        | ~ ilf_type(X6,relation_type(X4,X5))
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) ) ),
    inference(distribute,[status(thm)],[176]) ).

cnf(178,plain,
    ( subset(range_of(X3),X2)
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X2,set_type)
    | ~ ilf_type(X3,relation_type(X1,X2)) ),
    inference(split_conjunct,[status(thm)],[177]) ).

fof(180,plain,
    ! [X1] :
      ( ~ ilf_type(X1,set_type)
      | ~ subset(X1,empty_set)
      | X1 = empty_set ),
    inference(fof_nnf,[status(thm)],[30]) ).

fof(181,plain,
    ! [X2] :
      ( ~ ilf_type(X2,set_type)
      | ~ subset(X2,empty_set)
      | X2 = empty_set ),
    inference(variable_rename,[status(thm)],[180]) ).

cnf(182,plain,
    ( X1 = empty_set
    | ~ subset(X1,empty_set)
    | ~ ilf_type(X1,set_type) ),
    inference(split_conjunct,[status(thm)],[181]) ).

fof(183,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)],[31]) ).

fof(184,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)],[183]) ).

fof(185,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)],[184]) ).

fof(186,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)],[185]) ).

cnf(187,plain,
    ( ilf_type(X3,relation_type(X1,X2))
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X2,set_type)
    | ~ ilf_type(X3,subset_type(cross_product(X1,X2))) ),
    inference(split_conjunct,[status(thm)],[186]) ).

cnf(188,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)],[186]) ).

fof(194,plain,
    ! [X1] :
      ( ~ ilf_type(X1,set_type)
      | ~ member(X1,empty_set) ),
    inference(fof_nnf,[status(thm)],[41]) ).

fof(195,plain,
    ! [X2] :
      ( ~ ilf_type(X2,set_type)
      | ~ member(X2,empty_set) ),
    inference(variable_rename,[status(thm)],[194]) ).

cnf(196,plain,
    ( ~ member(X1,empty_set)
    | ~ ilf_type(X1,set_type) ),
    inference(split_conjunct,[status(thm)],[195]) ).

cnf(215,plain,
    ( $false
    | ~ member(X1,empty_set) ),
    inference(rw,[status(thm)],[196,110,theory(equality)]) ).

cnf(216,plain,
    ~ member(X1,empty_set),
    inference(cn,[status(thm)],[215,theory(equality)]) ).

cnf(217,plain,
    ( ~ empty(power_set(X1))
    | $false ),
    inference(rw,[status(thm)],[91,110,theory(equality)]) ).

cnf(218,plain,
    ~ empty(power_set(X1)),
    inference(cn,[status(thm)],[217,theory(equality)]) ).

cnf(219,plain,
    ( empty_set = X1
    | $false
    | ~ subset(X1,empty_set) ),
    inference(rw,[status(thm)],[182,110,theory(equality)]) ).

cnf(220,plain,
    ( empty_set = X1
    | ~ subset(X1,empty_set) ),
    inference(cn,[status(thm)],[219,theory(equality)]) ).

cnf(231,plain,
    ( ilf_type(X1,binary_relation_type)
    | ~ relation_like(X1)
    | $false ),
    inference(rw,[status(thm)],[129,110,theory(equality)]) ).

cnf(232,plain,
    ( ilf_type(X1,binary_relation_type)
    | ~ relation_like(X1) ),
    inference(cn,[status(thm)],[231,theory(equality)]) ).

cnf(236,plain,
    ( empty(X1)
    | member(esk8_1(X1),X1)
    | $false ),
    inference(rw,[status(thm)],[81,110,theory(equality)]) ).

cnf(237,plain,
    ( empty(X1)
    | member(esk8_1(X1),X1) ),
    inference(cn,[status(thm)],[236,theory(equality)]) ).

cnf(259,plain,
    ( ~ empty(X1)
    | ~ member(X2,X1)
    | $false
    | ~ ilf_type(X1,set_type) ),
    inference(rw,[status(thm)],[83,110,theory(equality)]) ).

cnf(260,plain,
    ( ~ empty(X1)
    | ~ member(X2,X1)
    | $false
    | $false ),
    inference(rw,[status(thm)],[259,110,theory(equality)]) ).

cnf(261,plain,
    ( ~ empty(X1)
    | ~ member(X2,X1) ),
    inference(cn,[status(thm)],[260,theory(equality)]) ).

cnf(269,plain,
    ( subset(X1,X2)
    | member(esk12_2(X1,X2),X1)
    | $false
    | ~ ilf_type(X1,set_type) ),
    inference(rw,[status(thm)],[158,110,theory(equality)]) ).

cnf(270,plain,
    ( subset(X1,X2)
    | member(esk12_2(X1,X2),X1)
    | $false
    | $false ),
    inference(rw,[status(thm)],[269,110,theory(equality)]) ).

cnf(271,plain,
    ( subset(X1,X2)
    | member(esk12_2(X1,X2),X1) ),
    inference(cn,[status(thm)],[270,theory(equality)]) ).

cnf(273,plain,
    ( subset(X1,X2)
    | ~ empty(X1) ),
    inference(spm,[status(thm)],[261,271,theory(equality)]) ).

cnf(278,plain,
    ( empty(X2)
    | ilf_type(X1,member_type(X2))
    | ~ member(X1,X2)
    | $false
    | ~ ilf_type(X1,set_type) ),
    inference(rw,[status(thm)],[60,110,theory(equality)]) ).

cnf(279,plain,
    ( empty(X2)
    | ilf_type(X1,member_type(X2))
    | ~ member(X1,X2)
    | $false
    | $false ),
    inference(rw,[status(thm)],[278,110,theory(equality)]) ).

cnf(280,plain,
    ( empty(X2)
    | ilf_type(X1,member_type(X2))
    | ~ member(X1,X2) ),
    inference(cn,[status(thm)],[279,theory(equality)]) ).

cnf(281,plain,
    ( ilf_type(X1,member_type(X2))
    | ~ member(X1,X2) ),
    inference(csr,[status(thm)],[280,261]) ).

cnf(296,plain,
    ( subset(range_of(X3),X2)
    | $false
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X3,relation_type(X1,X2)) ),
    inference(rw,[status(thm)],[178,110,theory(equality)]) ).

cnf(297,plain,
    ( subset(range_of(X3),X2)
    | $false
    | $false
    | ~ ilf_type(X3,relation_type(X1,X2)) ),
    inference(rw,[status(thm)],[296,110,theory(equality)]) ).

cnf(298,plain,
    ( subset(range_of(X3),X2)
    | ~ ilf_type(X3,relation_type(X1,X2)) ),
    inference(cn,[status(thm)],[297,theory(equality)]) ).

cnf(302,plain,
    ( relation_like(X3)
    | $false
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X3,subset_type(cross_product(X1,X2))) ),
    inference(rw,[status(thm)],[108,110,theory(equality)]) ).

cnf(303,plain,
    ( relation_like(X3)
    | $false
    | $false
    | ~ ilf_type(X3,subset_type(cross_product(X1,X2))) ),
    inference(rw,[status(thm)],[302,110,theory(equality)]) ).

cnf(304,plain,
    ( relation_like(X3)
    | ~ ilf_type(X3,subset_type(cross_product(X1,X2))) ),
    inference(cn,[status(thm)],[303,theory(equality)]) ).

cnf(306,plain,
    ( member(X1,power_set(X2))
    | member(esk9_2(X1,X2),X1)
    | $false
    | ~ ilf_type(X1,set_type) ),
    inference(rw,[status(thm)],[98,110,theory(equality)]) ).

cnf(307,plain,
    ( member(X1,power_set(X2))
    | member(esk9_2(X1,X2),X1)
    | $false
    | $false ),
    inference(rw,[status(thm)],[306,110,theory(equality)]) ).

cnf(308,plain,
    ( member(X1,power_set(X2))
    | member(esk9_2(X1,X2),X1) ),
    inference(cn,[status(thm)],[307,theory(equality)]) ).

cnf(312,plain,
    ( member(X1,power_set(X2))
    | $false
    | ~ ilf_type(X1,set_type)
    | ~ member(esk9_2(X1,X2),X2) ),
    inference(rw,[status(thm)],[97,110,theory(equality)]) ).

cnf(313,plain,
    ( member(X1,power_set(X2))
    | $false
    | $false
    | ~ member(esk9_2(X1,X2),X2) ),
    inference(rw,[status(thm)],[312,110,theory(equality)]) ).

cnf(314,plain,
    ( member(X1,power_set(X2))
    | ~ member(esk9_2(X1,X2),X2) ),
    inference(cn,[status(thm)],[313,theory(equality)]) ).

cnf(315,plain,
    member(X1,power_set(X1)),
    inference(spm,[status(thm)],[314,308,theory(equality)]) ).

cnf(322,plain,
    ( empty(X2)
    | member(X1,X2)
    | $false
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X1,member_type(X2)) ),
    inference(rw,[status(thm)],[61,110,theory(equality)]) ).

cnf(323,plain,
    ( empty(X2)
    | member(X1,X2)
    | $false
    | $false
    | ~ ilf_type(X1,member_type(X2)) ),
    inference(rw,[status(thm)],[322,110,theory(equality)]) ).

cnf(324,plain,
    ( empty(X2)
    | member(X1,X2)
    | ~ ilf_type(X1,member_type(X2)) ),
    inference(cn,[status(thm)],[323,theory(equality)]) ).

cnf(334,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)],[140,110,theory(equality)]) ).

cnf(335,plain,
    ( ilf_type(X2,member_type(power_set(X1)))
    | $false
    | $false
    | ~ ilf_type(X2,subset_type(X1)) ),
    inference(rw,[status(thm)],[334,110,theory(equality)]) ).

cnf(336,plain,
    ( ilf_type(X2,member_type(power_set(X1)))
    | ~ ilf_type(X2,subset_type(X1)) ),
    inference(cn,[status(thm)],[335,theory(equality)]) ).

cnf(338,plain,
    ( ilf_type(X2,subset_type(X1))
    | $false
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X2,member_type(power_set(X1))) ),
    inference(rw,[status(thm)],[139,110,theory(equality)]) ).

cnf(339,plain,
    ( ilf_type(X2,subset_type(X1))
    | $false
    | $false
    | ~ ilf_type(X2,member_type(power_set(X1))) ),
    inference(rw,[status(thm)],[338,110,theory(equality)]) ).

cnf(340,plain,
    ( ilf_type(X2,subset_type(X1))
    | ~ ilf_type(X2,member_type(power_set(X1))) ),
    inference(cn,[status(thm)],[339,theory(equality)]) ).

cnf(366,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)],[188,110,theory(equality)]) ).

cnf(367,plain,
    ( ilf_type(X3,subset_type(cross_product(X1,X2)))
    | $false
    | $false
    | ~ ilf_type(X3,relation_type(X1,X2)) ),
    inference(rw,[status(thm)],[366,110,theory(equality)]) ).

cnf(368,plain,
    ( ilf_type(X3,subset_type(cross_product(X1,X2)))
    | ~ ilf_type(X3,relation_type(X1,X2)) ),
    inference(cn,[status(thm)],[367,theory(equality)]) ).

cnf(369,negated_conjecture,
    ilf_type(esk3_0,subset_type(cross_product(esk2_0,empty_set))),
    inference(spm,[status(thm)],[368,46,theory(equality)]) ).

cnf(372,plain,
    ( ilf_type(X3,relation_type(X1,X2))
    | $false
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X3,subset_type(cross_product(X1,X2))) ),
    inference(rw,[status(thm)],[187,110,theory(equality)]) ).

cnf(373,plain,
    ( ilf_type(X3,relation_type(X1,X2))
    | $false
    | $false
    | ~ ilf_type(X3,subset_type(cross_product(X1,X2))) ),
    inference(rw,[status(thm)],[372,110,theory(equality)]) ).

cnf(374,plain,
    ( ilf_type(X3,relation_type(X1,X2))
    | ~ ilf_type(X3,subset_type(cross_product(X1,X2))) ),
    inference(cn,[status(thm)],[373,theory(equality)]) ).

cnf(393,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)],[100,110,theory(equality)]) ).

cnf(394,plain,
    ( member(X3,X2)
    | ~ member(X3,X1)
    | $false
    | $false
    | ~ ilf_type(X1,set_type)
    | ~ member(X1,power_set(X2)) ),
    inference(rw,[status(thm)],[393,110,theory(equality)]) ).

cnf(395,plain,
    ( member(X3,X2)
    | ~ member(X3,X1)
    | $false
    | $false
    | $false
    | ~ member(X1,power_set(X2)) ),
    inference(rw,[status(thm)],[394,110,theory(equality)]) ).

cnf(396,plain,
    ( member(X3,X2)
    | ~ member(X3,X1)
    | ~ member(X1,power_set(X2)) ),
    inference(cn,[status(thm)],[395,theory(equality)]) ).

cnf(437,plain,
    ( empty_set = X1
    | ~ empty(X1) ),
    inference(spm,[status(thm)],[220,273,theory(equality)]) ).

cnf(475,plain,
    ilf_type(X1,member_type(power_set(X1))),
    inference(spm,[status(thm)],[281,315,theory(equality)]) ).

cnf(482,plain,
    ilf_type(X1,subset_type(X1)),
    inference(spm,[status(thm)],[340,475,theory(equality)]) ).

cnf(484,plain,
    relation_like(cross_product(X1,X2)),
    inference(spm,[status(thm)],[304,482,theory(equality)]) ).

cnf(486,plain,
    ilf_type(cross_product(X1,X2),relation_type(X1,X2)),
    inference(spm,[status(thm)],[374,482,theory(equality)]) ).

cnf(488,plain,
    ilf_type(cross_product(X1,X2),binary_relation_type),
    inference(spm,[status(thm)],[232,484,theory(equality)]) ).

cnf(507,plain,
    subset(range_of(cross_product(X1,X2)),X2),
    inference(spm,[status(thm)],[298,486,theory(equality)]) ).

cnf(558,plain,
    empty_set = range_of(cross_product(X1,empty_set)),
    inference(spm,[status(thm)],[220,507,theory(equality)]) ).

cnf(563,plain,
    ( empty_set = cross_product(X1,empty_set)
    | ~ ilf_type(cross_product(X1,empty_set),binary_relation_type) ),
    inference(spm,[status(thm)],[172,558,theory(equality)]) ).

cnf(566,plain,
    ( empty_set = cross_product(X1,empty_set)
    | $false ),
    inference(rw,[status(thm)],[563,488,theory(equality)]) ).

cnf(567,plain,
    empty_set = cross_product(X1,empty_set),
    inference(cn,[status(thm)],[566,theory(equality)]) ).

cnf(618,negated_conjecture,
    ilf_type(esk3_0,subset_type(empty_set)),
    inference(rw,[status(thm)],[369,567,theory(equality)]) ).

cnf(619,negated_conjecture,
    ilf_type(esk3_0,member_type(power_set(empty_set))),
    inference(spm,[status(thm)],[336,618,theory(equality)]) ).

cnf(621,negated_conjecture,
    ( member(esk3_0,power_set(empty_set))
    | empty(power_set(empty_set)) ),
    inference(spm,[status(thm)],[324,619,theory(equality)]) ).

cnf(623,negated_conjecture,
    member(esk3_0,power_set(empty_set)),
    inference(sr,[status(thm)],[621,218,theory(equality)]) ).

cnf(628,negated_conjecture,
    ( member(X1,empty_set)
    | ~ member(X1,esk3_0) ),
    inference(spm,[status(thm)],[396,623,theory(equality)]) ).

cnf(630,negated_conjecture,
    ~ member(X1,esk3_0),
    inference(sr,[status(thm)],[628,216,theory(equality)]) ).

cnf(631,negated_conjecture,
    empty(esk3_0),
    inference(spm,[status(thm)],[630,237,theory(equality)]) ).

cnf(637,negated_conjecture,
    empty_set = esk3_0,
    inference(spm,[status(thm)],[437,631,theory(equality)]) ).

cnf(638,negated_conjecture,
    $false,
    inference(sr,[status(thm)],[637,45,theory(equality)]) ).

cnf(639,negated_conjecture,
    $false,
    638,
    [proof] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% % SZS status Started for /home/graph/tptp/TPTP/Problems/SET/SET664+3.p
% --creating new selector for []
% -running prover on /tmp/tmpB1RB_6/sel_SET664+3.p_1 with time limit 29
% -prover status Theorem
% Problem SET664+3.p solved in phase 0.
% % SZS status Theorem for /home/graph/tptp/TPTP/Problems/SET/SET664+3.p
% % SZS status Ended for /home/graph/tptp/TPTP/Problems/SET/SET664+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
% 
%------------------------------------------------------------------------------