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SInE---0.4.THM-CRf.s

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%------------------------------------------------------------------------------
% File     : SInE---0.4
% Problem  : SET665+3 : TPTP v5.0.0. Released v2.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : Source/sine.py -e eprover -t %d %s

% Computer : art06.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 03:08:52 EST 2010

% Result   : Theorem 5.05s
% Output   : CNFRefutation 5.05s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   30
%            Number of leaves      :   12
% Syntax   : Number of formulae    :  136 (  13 unt;   0 def)
%            Number of atoms       :  698 (  17 equ)
%            Maximal formula atoms :   23 (   5 avg)
%            Number of connectives :  935 ( 373   ~; 436   |;  83   &)
%                                         (  10 <=>;  33  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   14 (   6 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    7 (   5 usr;   1 prp; 0-2 aty)
%            Number of functors    :   13 (  13 usr;   3 con; 0-2 aty)
%            Number of variables   :  315 (  21 sgn 136   !;  10   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(1,conjecture,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => subset(identity_relation_of(X1),cross_product(X1,X1)) ),
    file('/tmp/tmp0FBQVm/sel_SET665+3.p_1',prove_relset_1_28) ).

fof(2,axiom,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ( empty(X1)
      <=> ! [X2] :
            ( ilf_type(X2,set_type)
           => ~ member(X2,X1) ) ) ),
    file('/tmp/tmp0FBQVm/sel_SET665+3.p_1',p25) ).

fof(4,axiom,
    ! [X1] : ilf_type(X1,set_type),
    file('/tmp/tmp0FBQVm/sel_SET665+3.p_1',p27) ).

fof(6,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/tmp0FBQVm/sel_SET665+3.p_1',p21) ).

fof(7,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/tmp0FBQVm/sel_SET665+3.p_1',p20) ).

fof(8,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/tmp0FBQVm/sel_SET665+3.p_1',p23) ).

fof(11,axiom,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ( ilf_type(X1,binary_relation_type)
      <=> ( relation_like(X1)
          & ilf_type(X1,set_type) ) ) ),
    file('/tmp/tmp0FBQVm/sel_SET665+3.p_1',p11) ).

fof(17,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/tmp0FBQVm/sel_SET665+3.p_1',p17) ).

fof(20,axiom,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ! [X2] :
          ( ilf_type(X2,set_type)
         => ! [X3] :
              ( ilf_type(X3,set_type)
             => ( member(ordered_pair(X2,X3),identity_relation_of(X1))
              <=> ( member(X2,X1)
                  & X2 = X3 ) ) ) ) ),
    file('/tmp/tmp0FBQVm/sel_SET665+3.p_1',p2) ).

fof(21,axiom,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ! [X2] :
          ( ilf_type(X2,set_type)
         => ! [X3] :
              ( ilf_type(X3,set_type)
             => ! [X4] :
                  ( ilf_type(X4,set_type)
                 => ( member(ordered_pair(X1,X2),cross_product(X3,X4))
                  <=> ( member(X1,X3)
                      & member(X2,X4) ) ) ) ) ) ),
    file('/tmp/tmp0FBQVm/sel_SET665+3.p_1',p3) ).

fof(22,axiom,
    ! [X1] :
      ( ilf_type(X1,binary_relation_type)
     => ! [X2] :
          ( ilf_type(X2,binary_relation_type)
         => ( subset(X1,X2)
          <=> ! [X3] :
                ( ilf_type(X3,set_type)
               => ! [X4] :
                    ( ilf_type(X4,set_type)
                   => ( member(ordered_pair(X3,X4),X1)
                     => member(ordered_pair(X3,X4),X2) ) ) ) ) ) ),
    file('/tmp/tmp0FBQVm/sel_SET665+3.p_1',p1) ).

fof(27,axiom,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ilf_type(identity_relation_of(X1),binary_relation_type) ),
    file('/tmp/tmp0FBQVm/sel_SET665+3.p_1',p8) ).

fof(29,negated_conjecture,
    ~ ! [X1] :
        ( ilf_type(X1,set_type)
       => subset(identity_relation_of(X1),cross_product(X1,X1)) ),
    inference(assume_negation,[status(cth)],[1]) ).

fof(30,plain,
    ! [X1] :
      ( ilf_type(X1,set_type)
     => ( empty(X1)
      <=> ! [X2] :
            ( ilf_type(X2,set_type)
           => ~ member(X2,X1) ) ) ),
    inference(fof_simplification,[status(thm)],[2,theory(equality)]) ).

fof(32,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)],[8,theory(equality)]) ).

fof(34,negated_conjecture,
    ? [X1] :
      ( ilf_type(X1,set_type)
      & ~ subset(identity_relation_of(X1),cross_product(X1,X1)) ),
    inference(fof_nnf,[status(thm)],[29]) ).

fof(35,negated_conjecture,
    ? [X2] :
      ( ilf_type(X2,set_type)
      & ~ subset(identity_relation_of(X2),cross_product(X2,X2)) ),
    inference(variable_rename,[status(thm)],[34]) ).

fof(36,negated_conjecture,
    ( ilf_type(esk1_0,set_type)
    & ~ subset(identity_relation_of(esk1_0),cross_product(esk1_0,esk1_0)) ),
    inference(skolemize,[status(esa)],[35]) ).

cnf(37,negated_conjecture,
    ~ subset(identity_relation_of(esk1_0),cross_product(esk1_0,esk1_0)),
    inference(split_conjunct,[status(thm)],[36]) ).

fof(39,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)],[30]) ).

fof(40,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)],[39]) ).

fof(41,plain,
    ! [X3] :
      ( ~ ilf_type(X3,set_type)
      | ( ( ~ empty(X3)
          | ! [X4] :
              ( ~ ilf_type(X4,set_type)
              | ~ member(X4,X3) ) )
        & ( ( ilf_type(esk2_1(X3),set_type)
            & member(esk2_1(X3),X3) )
          | empty(X3) ) ) ),
    inference(skolemize,[status(esa)],[40]) ).

fof(42,plain,
    ! [X3,X4] :
      ( ( ( ~ ilf_type(X4,set_type)
          | ~ member(X4,X3)
          | ~ empty(X3) )
        & ( ( ilf_type(esk2_1(X3),set_type)
            & member(esk2_1(X3),X3) )
          | empty(X3) ) )
      | ~ ilf_type(X3,set_type) ),
    inference(shift_quantors,[status(thm)],[41]) ).

fof(43,plain,
    ! [X3,X4] :
      ( ( ~ ilf_type(X4,set_type)
        | ~ member(X4,X3)
        | ~ empty(X3)
        | ~ ilf_type(X3,set_type) )
      & ( ilf_type(esk2_1(X3),set_type)
        | empty(X3)
        | ~ ilf_type(X3,set_type) )
      & ( member(esk2_1(X3),X3)
        | empty(X3)
        | ~ ilf_type(X3,set_type) ) ),
    inference(distribute,[status(thm)],[42]) ).

cnf(46,plain,
    ( ~ ilf_type(X1,set_type)
    | ~ empty(X1)
    | ~ member(X2,X1)
    | ~ ilf_type(X2,set_type) ),
    inference(split_conjunct,[status(thm)],[43]) ).

fof(51,plain,
    ! [X2] : ilf_type(X2,set_type),
    inference(variable_rename,[status(thm)],[4]) ).

cnf(52,plain,
    ilf_type(X1,set_type),
    inference(split_conjunct,[status(thm)],[51]) ).

fof(56,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)],[6]) ).

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

fof(58,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(esk4_2(X4,X5),set_type)
                & member(esk4_2(X4,X5),X4)
                & ~ member(esk4_2(X4,X5),X5) )
              | member(X4,power_set(X5)) ) ) ) ),
    inference(skolemize,[status(esa)],[57]) ).

fof(59,plain,
    ! [X4,X5,X6] :
      ( ( ( ~ ilf_type(X6,set_type)
          | ~ member(X6,X4)
          | member(X6,X5)
          | ~ member(X4,power_set(X5)) )
        & ( ( ilf_type(esk4_2(X4,X5),set_type)
            & member(esk4_2(X4,X5),X4)
            & ~ member(esk4_2(X4,X5),X5) )
          | member(X4,power_set(X5)) ) )
      | ~ ilf_type(X5,set_type)
      | ~ ilf_type(X4,set_type) ),
    inference(shift_quantors,[status(thm)],[58]) ).

fof(60,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(esk4_2(X4,X5),set_type)
        | member(X4,power_set(X5))
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) )
      & ( member(esk4_2(X4,X5),X4)
        | member(X4,power_set(X5))
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) )
      & ( ~ member(esk4_2(X4,X5),X5)
        | member(X4,power_set(X5))
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) ) ),
    inference(distribute,[status(thm)],[59]) ).

cnf(61,plain,
    ( member(X1,power_set(X2))
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X2,set_type)
    | ~ member(esk4_2(X1,X2),X2) ),
    inference(split_conjunct,[status(thm)],[60]) ).

cnf(62,plain,
    ( member(X1,power_set(X2))
    | member(esk4_2(X1,X2),X1)
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X2,set_type) ),
    inference(split_conjunct,[status(thm)],[60]) ).

fof(65,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)],[7]) ).

fof(66,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)],[65]) ).

fof(67,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)],[66]) ).

cnf(68,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)],[67]) ).

fof(69,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)],[32]) ).

fof(70,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)],[69]) ).

fof(71,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)],[70]) ).

fof(72,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)],[71]) ).

cnf(73,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)],[72]) ).

fof(84,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)],[11]) ).

fof(85,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)],[84]) ).

fof(86,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)],[85]) ).

cnf(87,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)],[86]) ).

fof(110,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)],[17]) ).

fof(111,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)],[110]) ).

fof(112,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)],[111]) ).

fof(113,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)],[112]) ).

cnf(114,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)],[113]) ).

fof(131,plain,
    ! [X1] :
      ( ~ ilf_type(X1,set_type)
      | ! [X2] :
          ( ~ ilf_type(X2,set_type)
          | ! [X3] :
              ( ~ ilf_type(X3,set_type)
              | ( ( ~ member(ordered_pair(X2,X3),identity_relation_of(X1))
                  | ( member(X2,X1)
                    & X2 = X3 ) )
                & ( ~ member(X2,X1)
                  | X2 != X3
                  | member(ordered_pair(X2,X3),identity_relation_of(X1)) ) ) ) ) ),
    inference(fof_nnf,[status(thm)],[20]) ).

fof(132,plain,
    ! [X4] :
      ( ~ ilf_type(X4,set_type)
      | ! [X5] :
          ( ~ ilf_type(X5,set_type)
          | ! [X6] :
              ( ~ ilf_type(X6,set_type)
              | ( ( ~ member(ordered_pair(X5,X6),identity_relation_of(X4))
                  | ( member(X5,X4)
                    & X5 = X6 ) )
                & ( ~ member(X5,X4)
                  | X5 != X6
                  | member(ordered_pair(X5,X6),identity_relation_of(X4)) ) ) ) ) ),
    inference(variable_rename,[status(thm)],[131]) ).

fof(133,plain,
    ! [X4,X5,X6] :
      ( ~ ilf_type(X6,set_type)
      | ( ( ~ member(ordered_pair(X5,X6),identity_relation_of(X4))
          | ( member(X5,X4)
            & X5 = X6 ) )
        & ( ~ member(X5,X4)
          | X5 != X6
          | member(ordered_pair(X5,X6),identity_relation_of(X4)) ) )
      | ~ ilf_type(X5,set_type)
      | ~ ilf_type(X4,set_type) ),
    inference(shift_quantors,[status(thm)],[132]) ).

fof(134,plain,
    ! [X4,X5,X6] :
      ( ( member(X5,X4)
        | ~ member(ordered_pair(X5,X6),identity_relation_of(X4))
        | ~ ilf_type(X6,set_type)
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) )
      & ( X5 = X6
        | ~ member(ordered_pair(X5,X6),identity_relation_of(X4))
        | ~ ilf_type(X6,set_type)
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) )
      & ( ~ member(X5,X4)
        | X5 != X6
        | member(ordered_pair(X5,X6),identity_relation_of(X4))
        | ~ ilf_type(X6,set_type)
        | ~ ilf_type(X5,set_type)
        | ~ ilf_type(X4,set_type) ) ),
    inference(distribute,[status(thm)],[133]) ).

cnf(136,plain,
    ( X2 = X3
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X2,set_type)
    | ~ ilf_type(X3,set_type)
    | ~ member(ordered_pair(X2,X3),identity_relation_of(X1)) ),
    inference(split_conjunct,[status(thm)],[134]) ).

cnf(137,plain,
    ( member(X2,X1)
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X2,set_type)
    | ~ ilf_type(X3,set_type)
    | ~ member(ordered_pair(X2,X3),identity_relation_of(X1)) ),
    inference(split_conjunct,[status(thm)],[134]) ).

fof(138,plain,
    ! [X1] :
      ( ~ ilf_type(X1,set_type)
      | ! [X2] :
          ( ~ ilf_type(X2,set_type)
          | ! [X3] :
              ( ~ ilf_type(X3,set_type)
              | ! [X4] :
                  ( ~ ilf_type(X4,set_type)
                  | ( ( ~ member(ordered_pair(X1,X2),cross_product(X3,X4))
                      | ( member(X1,X3)
                        & member(X2,X4) ) )
                    & ( ~ member(X1,X3)
                      | ~ member(X2,X4)
                      | member(ordered_pair(X1,X2),cross_product(X3,X4)) ) ) ) ) ) ),
    inference(fof_nnf,[status(thm)],[21]) ).

fof(139,plain,
    ! [X5] :
      ( ~ ilf_type(X5,set_type)
      | ! [X6] :
          ( ~ ilf_type(X6,set_type)
          | ! [X7] :
              ( ~ ilf_type(X7,set_type)
              | ! [X8] :
                  ( ~ ilf_type(X8,set_type)
                  | ( ( ~ member(ordered_pair(X5,X6),cross_product(X7,X8))
                      | ( member(X5,X7)
                        & member(X6,X8) ) )
                    & ( ~ member(X5,X7)
                      | ~ member(X6,X8)
                      | member(ordered_pair(X5,X6),cross_product(X7,X8)) ) ) ) ) ) ),
    inference(variable_rename,[status(thm)],[138]) ).

fof(140,plain,
    ! [X5,X6,X7,X8] :
      ( ~ ilf_type(X8,set_type)
      | ( ( ~ member(ordered_pair(X5,X6),cross_product(X7,X8))
          | ( member(X5,X7)
            & member(X6,X8) ) )
        & ( ~ member(X5,X7)
          | ~ member(X6,X8)
          | member(ordered_pair(X5,X6),cross_product(X7,X8)) ) )
      | ~ ilf_type(X7,set_type)
      | ~ ilf_type(X6,set_type)
      | ~ ilf_type(X5,set_type) ),
    inference(shift_quantors,[status(thm)],[139]) ).

fof(141,plain,
    ! [X5,X6,X7,X8] :
      ( ( member(X5,X7)
        | ~ member(ordered_pair(X5,X6),cross_product(X7,X8))
        | ~ ilf_type(X8,set_type)
        | ~ ilf_type(X7,set_type)
        | ~ ilf_type(X6,set_type)
        | ~ ilf_type(X5,set_type) )
      & ( member(X6,X8)
        | ~ member(ordered_pair(X5,X6),cross_product(X7,X8))
        | ~ ilf_type(X8,set_type)
        | ~ ilf_type(X7,set_type)
        | ~ ilf_type(X6,set_type)
        | ~ ilf_type(X5,set_type) )
      & ( ~ member(X5,X7)
        | ~ member(X6,X8)
        | member(ordered_pair(X5,X6),cross_product(X7,X8))
        | ~ ilf_type(X8,set_type)
        | ~ ilf_type(X7,set_type)
        | ~ ilf_type(X6,set_type)
        | ~ ilf_type(X5,set_type) ) ),
    inference(distribute,[status(thm)],[140]) ).

cnf(142,plain,
    ( member(ordered_pair(X1,X2),cross_product(X3,X4))
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X2,set_type)
    | ~ ilf_type(X3,set_type)
    | ~ ilf_type(X4,set_type)
    | ~ member(X2,X4)
    | ~ member(X1,X3) ),
    inference(split_conjunct,[status(thm)],[141]) ).

fof(145,plain,
    ! [X1] :
      ( ~ ilf_type(X1,binary_relation_type)
      | ! [X2] :
          ( ~ ilf_type(X2,binary_relation_type)
          | ( ( ~ subset(X1,X2)
              | ! [X3] :
                  ( ~ ilf_type(X3,set_type)
                  | ! [X4] :
                      ( ~ ilf_type(X4,set_type)
                      | ~ member(ordered_pair(X3,X4),X1)
                      | member(ordered_pair(X3,X4),X2) ) ) )
            & ( ? [X3] :
                  ( ilf_type(X3,set_type)
                  & ? [X4] :
                      ( ilf_type(X4,set_type)
                      & member(ordered_pair(X3,X4),X1)
                      & ~ member(ordered_pair(X3,X4),X2) ) )
              | subset(X1,X2) ) ) ) ),
    inference(fof_nnf,[status(thm)],[22]) ).

fof(146,plain,
    ! [X5] :
      ( ~ ilf_type(X5,binary_relation_type)
      | ! [X6] :
          ( ~ ilf_type(X6,binary_relation_type)
          | ( ( ~ subset(X5,X6)
              | ! [X7] :
                  ( ~ ilf_type(X7,set_type)
                  | ! [X8] :
                      ( ~ ilf_type(X8,set_type)
                      | ~ member(ordered_pair(X7,X8),X5)
                      | member(ordered_pair(X7,X8),X6) ) ) )
            & ( ? [X9] :
                  ( ilf_type(X9,set_type)
                  & ? [X10] :
                      ( ilf_type(X10,set_type)
                      & member(ordered_pair(X9,X10),X5)
                      & ~ member(ordered_pair(X9,X10),X6) ) )
              | subset(X5,X6) ) ) ) ),
    inference(variable_rename,[status(thm)],[145]) ).

fof(147,plain,
    ! [X5] :
      ( ~ ilf_type(X5,binary_relation_type)
      | ! [X6] :
          ( ~ ilf_type(X6,binary_relation_type)
          | ( ( ~ subset(X5,X6)
              | ! [X7] :
                  ( ~ ilf_type(X7,set_type)
                  | ! [X8] :
                      ( ~ ilf_type(X8,set_type)
                      | ~ member(ordered_pair(X7,X8),X5)
                      | member(ordered_pair(X7,X8),X6) ) ) )
            & ( ( ilf_type(esk11_2(X5,X6),set_type)
                & ilf_type(esk12_2(X5,X6),set_type)
                & member(ordered_pair(esk11_2(X5,X6),esk12_2(X5,X6)),X5)
                & ~ member(ordered_pair(esk11_2(X5,X6),esk12_2(X5,X6)),X6) )
              | subset(X5,X6) ) ) ) ),
    inference(skolemize,[status(esa)],[146]) ).

fof(148,plain,
    ! [X5,X6,X7,X8] :
      ( ( ( ~ ilf_type(X8,set_type)
          | ~ member(ordered_pair(X7,X8),X5)
          | member(ordered_pair(X7,X8),X6)
          | ~ ilf_type(X7,set_type)
          | ~ subset(X5,X6) )
        & ( ( ilf_type(esk11_2(X5,X6),set_type)
            & ilf_type(esk12_2(X5,X6),set_type)
            & member(ordered_pair(esk11_2(X5,X6),esk12_2(X5,X6)),X5)
            & ~ member(ordered_pair(esk11_2(X5,X6),esk12_2(X5,X6)),X6) )
          | subset(X5,X6) ) )
      | ~ ilf_type(X6,binary_relation_type)
      | ~ ilf_type(X5,binary_relation_type) ),
    inference(shift_quantors,[status(thm)],[147]) ).

fof(149,plain,
    ! [X5,X6,X7,X8] :
      ( ( ~ ilf_type(X8,set_type)
        | ~ member(ordered_pair(X7,X8),X5)
        | member(ordered_pair(X7,X8),X6)
        | ~ ilf_type(X7,set_type)
        | ~ subset(X5,X6)
        | ~ ilf_type(X6,binary_relation_type)
        | ~ ilf_type(X5,binary_relation_type) )
      & ( ilf_type(esk11_2(X5,X6),set_type)
        | subset(X5,X6)
        | ~ ilf_type(X6,binary_relation_type)
        | ~ ilf_type(X5,binary_relation_type) )
      & ( ilf_type(esk12_2(X5,X6),set_type)
        | subset(X5,X6)
        | ~ ilf_type(X6,binary_relation_type)
        | ~ ilf_type(X5,binary_relation_type) )
      & ( member(ordered_pair(esk11_2(X5,X6),esk12_2(X5,X6)),X5)
        | subset(X5,X6)
        | ~ ilf_type(X6,binary_relation_type)
        | ~ ilf_type(X5,binary_relation_type) )
      & ( ~ member(ordered_pair(esk11_2(X5,X6),esk12_2(X5,X6)),X6)
        | subset(X5,X6)
        | ~ ilf_type(X6,binary_relation_type)
        | ~ ilf_type(X5,binary_relation_type) ) ),
    inference(distribute,[status(thm)],[148]) ).

cnf(150,plain,
    ( subset(X1,X2)
    | ~ ilf_type(X1,binary_relation_type)
    | ~ ilf_type(X2,binary_relation_type)
    | ~ member(ordered_pair(esk11_2(X1,X2),esk12_2(X1,X2)),X2) ),
    inference(split_conjunct,[status(thm)],[149]) ).

cnf(151,plain,
    ( subset(X1,X2)
    | member(ordered_pair(esk11_2(X1,X2),esk12_2(X1,X2)),X1)
    | ~ ilf_type(X1,binary_relation_type)
    | ~ ilf_type(X2,binary_relation_type) ),
    inference(split_conjunct,[status(thm)],[149]) ).

fof(181,plain,
    ! [X1] :
      ( ~ ilf_type(X1,set_type)
      | ilf_type(identity_relation_of(X1),binary_relation_type) ),
    inference(fof_nnf,[status(thm)],[27]) ).

fof(182,plain,
    ! [X2] :
      ( ~ ilf_type(X2,set_type)
      | ilf_type(identity_relation_of(X2),binary_relation_type) ),
    inference(variable_rename,[status(thm)],[181]) ).

cnf(183,plain,
    ( ilf_type(identity_relation_of(X1),binary_relation_type)
    | ~ ilf_type(X1,set_type) ),
    inference(split_conjunct,[status(thm)],[182]) ).

cnf(197,plain,
    ( ilf_type(identity_relation_of(X1),binary_relation_type)
    | $false ),
    inference(rw,[status(thm)],[183,52,theory(equality)]) ).

cnf(198,plain,
    ilf_type(identity_relation_of(X1),binary_relation_type),
    inference(cn,[status(thm)],[197,theory(equality)]) ).

cnf(208,plain,
    ( ilf_type(X1,binary_relation_type)
    | ~ relation_like(X1)
    | $false ),
    inference(rw,[status(thm)],[87,52,theory(equality)]) ).

cnf(209,plain,
    ( ilf_type(X1,binary_relation_type)
    | ~ relation_like(X1) ),
    inference(cn,[status(thm)],[208,theory(equality)]) ).

cnf(233,plain,
    ( ~ empty(X1)
    | ~ member(X2,X1)
    | $false
    | ~ ilf_type(X1,set_type) ),
    inference(rw,[status(thm)],[46,52,theory(equality)]) ).

cnf(234,plain,
    ( ~ empty(X1)
    | ~ member(X2,X1)
    | $false
    | $false ),
    inference(rw,[status(thm)],[233,52,theory(equality)]) ).

cnf(235,plain,
    ( ~ empty(X1)
    | ~ member(X2,X1) ),
    inference(cn,[status(thm)],[234,theory(equality)]) ).

cnf(250,plain,
    ( empty(X2)
    | ilf_type(X1,member_type(X2))
    | ~ member(X1,X2)
    | $false
    | ~ ilf_type(X1,set_type) ),
    inference(rw,[status(thm)],[73,52,theory(equality)]) ).

cnf(251,plain,
    ( empty(X2)
    | ilf_type(X1,member_type(X2))
    | ~ member(X1,X2)
    | $false
    | $false ),
    inference(rw,[status(thm)],[250,52,theory(equality)]) ).

cnf(252,plain,
    ( empty(X2)
    | ilf_type(X1,member_type(X2))
    | ~ member(X1,X2) ),
    inference(cn,[status(thm)],[251,theory(equality)]) ).

cnf(253,plain,
    ( ilf_type(X1,member_type(X2))
    | ~ member(X1,X2) ),
    inference(csr,[status(thm)],[252,235]) ).

cnf(263,plain,
    ( relation_like(X3)
    | $false
    | ~ ilf_type(X1,set_type)
    | ~ ilf_type(X3,subset_type(cross_product(X1,X2))) ),
    inference(rw,[status(thm)],[68,52,theory(equality)]) ).

cnf(264,plain,
    ( relation_like(X3)
    | $false
    | $false
    | ~ ilf_type(X3,subset_type(cross_product(X1,X2))) ),
    inference(rw,[status(thm)],[263,52,theory(equality)]) ).

cnf(265,plain,
    ( relation_like(X3)
    | ~ ilf_type(X3,subset_type(cross_product(X1,X2))) ),
    inference(cn,[status(thm)],[264,theory(equality)]) ).

cnf(270,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)],[114,52,theory(equality)]) ).

cnf(271,plain,
    ( ilf_type(X2,subset_type(X1))
    | $false
    | $false
    | ~ ilf_type(X2,member_type(power_set(X1))) ),
    inference(rw,[status(thm)],[270,52,theory(equality)]) ).

cnf(272,plain,
    ( ilf_type(X2,subset_type(X1))
    | ~ ilf_type(X2,member_type(power_set(X1))) ),
    inference(cn,[status(thm)],[271,theory(equality)]) ).

cnf(274,plain,
    ( ilf_type(X1,subset_type(X2))
    | ~ member(X1,power_set(X2)) ),
    inference(spm,[status(thm)],[272,253,theory(equality)]) ).

cnf(301,plain,
    ( X2 = X3
    | $false
    | ~ ilf_type(X2,set_type)
    | ~ ilf_type(X1,set_type)
    | ~ member(ordered_pair(X2,X3),identity_relation_of(X1)) ),
    inference(rw,[status(thm)],[136,52,theory(equality)]) ).

cnf(302,plain,
    ( X2 = X3
    | $false
    | $false
    | ~ ilf_type(X1,set_type)
    | ~ member(ordered_pair(X2,X3),identity_relation_of(X1)) ),
    inference(rw,[status(thm)],[301,52,theory(equality)]) ).

cnf(303,plain,
    ( X2 = X3
    | $false
    | $false
    | $false
    | ~ member(ordered_pair(X2,X3),identity_relation_of(X1)) ),
    inference(rw,[status(thm)],[302,52,theory(equality)]) ).

cnf(304,plain,
    ( X2 = X3
    | ~ member(ordered_pair(X2,X3),identity_relation_of(X1)) ),
    inference(cn,[status(thm)],[303,theory(equality)]) ).

cnf(327,plain,
    ( member(X1,power_set(X2))
    | member(esk4_2(X1,X2),X1)
    | $false
    | ~ ilf_type(X1,set_type) ),
    inference(rw,[status(thm)],[62,52,theory(equality)]) ).

cnf(328,plain,
    ( member(X1,power_set(X2))
    | member(esk4_2(X1,X2),X1)
    | $false
    | $false ),
    inference(rw,[status(thm)],[327,52,theory(equality)]) ).

cnf(329,plain,
    ( member(X1,power_set(X2))
    | member(esk4_2(X1,X2),X1) ),
    inference(cn,[status(thm)],[328,theory(equality)]) ).

cnf(331,plain,
    ( member(X1,power_set(X2))
    | $false
    | ~ ilf_type(X1,set_type)
    | ~ member(esk4_2(X1,X2),X2) ),
    inference(rw,[status(thm)],[61,52,theory(equality)]) ).

cnf(332,plain,
    ( member(X1,power_set(X2))
    | $false
    | $false
    | ~ member(esk4_2(X1,X2),X2) ),
    inference(rw,[status(thm)],[331,52,theory(equality)]) ).

cnf(333,plain,
    ( member(X1,power_set(X2))
    | ~ member(esk4_2(X1,X2),X2) ),
    inference(cn,[status(thm)],[332,theory(equality)]) ).

cnf(334,plain,
    member(X1,power_set(X1)),
    inference(spm,[status(thm)],[333,329,theory(equality)]) ).

cnf(335,plain,
    ( member(X2,X1)
    | $false
    | ~ ilf_type(X2,set_type)
    | ~ ilf_type(X1,set_type)
    | ~ member(ordered_pair(X2,X3),identity_relation_of(X1)) ),
    inference(rw,[status(thm)],[137,52,theory(equality)]) ).

cnf(336,plain,
    ( member(X2,X1)
    | $false
    | $false
    | ~ ilf_type(X1,set_type)
    | ~ member(ordered_pair(X2,X3),identity_relation_of(X1)) ),
    inference(rw,[status(thm)],[335,52,theory(equality)]) ).

cnf(337,plain,
    ( member(X2,X1)
    | $false
    | $false
    | $false
    | ~ member(ordered_pair(X2,X3),identity_relation_of(X1)) ),
    inference(rw,[status(thm)],[336,52,theory(equality)]) ).

cnf(338,plain,
    ( member(X2,X1)
    | ~ member(ordered_pair(X2,X3),identity_relation_of(X1)) ),
    inference(cn,[status(thm)],[337,theory(equality)]) ).

cnf(369,plain,
    ( esk11_2(identity_relation_of(X1),X2) = esk12_2(identity_relation_of(X1),X2)
    | subset(identity_relation_of(X1),X2)
    | ~ ilf_type(X2,binary_relation_type)
    | ~ ilf_type(identity_relation_of(X1),binary_relation_type) ),
    inference(spm,[status(thm)],[304,151,theory(equality)]) ).

cnf(370,plain,
    ( member(esk11_2(identity_relation_of(X1),X2),X1)
    | subset(identity_relation_of(X1),X2)
    | ~ ilf_type(X2,binary_relation_type)
    | ~ ilf_type(identity_relation_of(X1),binary_relation_type) ),
    inference(spm,[status(thm)],[338,151,theory(equality)]) ).

cnf(371,plain,
    ( esk11_2(identity_relation_of(X1),X2) = esk12_2(identity_relation_of(X1),X2)
    | subset(identity_relation_of(X1),X2)
    | ~ ilf_type(X2,binary_relation_type)
    | $false ),
    inference(rw,[status(thm)],[369,198,theory(equality)]) ).

cnf(372,plain,
    ( esk11_2(identity_relation_of(X1),X2) = esk12_2(identity_relation_of(X1),X2)
    | subset(identity_relation_of(X1),X2)
    | ~ ilf_type(X2,binary_relation_type) ),
    inference(cn,[status(thm)],[371,theory(equality)]) ).

cnf(373,plain,
    ( member(esk11_2(identity_relation_of(X1),X2),X1)
    | subset(identity_relation_of(X1),X2)
    | ~ ilf_type(X2,binary_relation_type)
    | $false ),
    inference(rw,[status(thm)],[370,198,theory(equality)]) ).

cnf(374,plain,
    ( member(esk11_2(identity_relation_of(X1),X2),X1)
    | subset(identity_relation_of(X1),X2)
    | ~ ilf_type(X2,binary_relation_type) ),
    inference(cn,[status(thm)],[373,theory(equality)]) ).

cnf(409,plain,
    ( member(ordered_pair(X1,X2),cross_product(X3,X4))
    | ~ member(X2,X4)
    | ~ member(X1,X3)
    | $false
    | ~ ilf_type(X3,set_type)
    | ~ ilf_type(X2,set_type)
    | ~ ilf_type(X1,set_type) ),
    inference(rw,[status(thm)],[142,52,theory(equality)]) ).

cnf(410,plain,
    ( member(ordered_pair(X1,X2),cross_product(X3,X4))
    | ~ member(X2,X4)
    | ~ member(X1,X3)
    | $false
    | $false
    | ~ ilf_type(X2,set_type)
    | ~ ilf_type(X1,set_type) ),
    inference(rw,[status(thm)],[409,52,theory(equality)]) ).

cnf(411,plain,
    ( member(ordered_pair(X1,X2),cross_product(X3,X4))
    | ~ member(X2,X4)
    | ~ member(X1,X3)
    | $false
    | $false
    | $false
    | ~ ilf_type(X1,set_type) ),
    inference(rw,[status(thm)],[410,52,theory(equality)]) ).

cnf(412,plain,
    ( member(ordered_pair(X1,X2),cross_product(X3,X4))
    | ~ member(X2,X4)
    | ~ member(X1,X3)
    | $false
    | $false
    | $false
    | $false ),
    inference(rw,[status(thm)],[411,52,theory(equality)]) ).

cnf(413,plain,
    ( member(ordered_pair(X1,X2),cross_product(X3,X4))
    | ~ member(X2,X4)
    | ~ member(X1,X3) ),
    inference(cn,[status(thm)],[412,theory(equality)]) ).

cnf(415,plain,
    ( subset(X1,cross_product(X2,X3))
    | ~ ilf_type(cross_product(X2,X3),binary_relation_type)
    | ~ ilf_type(X1,binary_relation_type)
    | ~ member(esk12_2(X1,cross_product(X2,X3)),X3)
    | ~ member(esk11_2(X1,cross_product(X2,X3)),X2) ),
    inference(spm,[status(thm)],[150,413,theory(equality)]) ).

cnf(451,plain,
    ilf_type(X1,subset_type(X1)),
    inference(spm,[status(thm)],[274,334,theory(equality)]) ).

cnf(460,plain,
    relation_like(cross_product(X1,X2)),
    inference(spm,[status(thm)],[265,451,theory(equality)]) ).

cnf(463,plain,
    ilf_type(cross_product(X1,X2),binary_relation_type),
    inference(spm,[status(thm)],[209,460,theory(equality)]) ).

cnf(1112,plain,
    ( subset(X1,cross_product(X2,X3))
    | $false
    | ~ ilf_type(X1,binary_relation_type)
    | ~ member(esk12_2(X1,cross_product(X2,X3)),X3)
    | ~ member(esk11_2(X1,cross_product(X2,X3)),X2) ),
    inference(rw,[status(thm)],[415,463,theory(equality)]) ).

cnf(1113,plain,
    ( subset(X1,cross_product(X2,X3))
    | ~ ilf_type(X1,binary_relation_type)
    | ~ member(esk12_2(X1,cross_product(X2,X3)),X3)
    | ~ member(esk11_2(X1,cross_product(X2,X3)),X2) ),
    inference(cn,[status(thm)],[1112,theory(equality)]) ).

cnf(1116,plain,
    ( subset(identity_relation_of(X1),cross_product(X2,X3))
    | ~ member(esk11_2(identity_relation_of(X1),cross_product(X2,X3)),X3)
    | ~ member(esk11_2(identity_relation_of(X1),cross_product(X2,X3)),X2)
    | ~ ilf_type(identity_relation_of(X1),binary_relation_type)
    | ~ ilf_type(cross_product(X2,X3),binary_relation_type) ),
    inference(spm,[status(thm)],[1113,372,theory(equality)]) ).

cnf(1118,plain,
    ( subset(identity_relation_of(X1),cross_product(X2,X3))
    | ~ member(esk11_2(identity_relation_of(X1),cross_product(X2,X3)),X3)
    | ~ member(esk11_2(identity_relation_of(X1),cross_product(X2,X3)),X2)
    | $false
    | ~ ilf_type(cross_product(X2,X3),binary_relation_type) ),
    inference(rw,[status(thm)],[1116,198,theory(equality)]) ).

cnf(1119,plain,
    ( subset(identity_relation_of(X1),cross_product(X2,X3))
    | ~ member(esk11_2(identity_relation_of(X1),cross_product(X2,X3)),X3)
    | ~ member(esk11_2(identity_relation_of(X1),cross_product(X2,X3)),X2)
    | $false
    | $false ),
    inference(rw,[status(thm)],[1118,463,theory(equality)]) ).

cnf(1120,plain,
    ( subset(identity_relation_of(X1),cross_product(X2,X3))
    | ~ member(esk11_2(identity_relation_of(X1),cross_product(X2,X3)),X3)
    | ~ member(esk11_2(identity_relation_of(X1),cross_product(X2,X3)),X2) ),
    inference(cn,[status(thm)],[1119,theory(equality)]) ).

cnf(38611,plain,
    ( subset(identity_relation_of(X1),cross_product(X2,X1))
    | ~ member(esk11_2(identity_relation_of(X1),cross_product(X2,X1)),X2)
    | ~ ilf_type(cross_product(X2,X1),binary_relation_type) ),
    inference(spm,[status(thm)],[1120,374,theory(equality)]) ).

cnf(38621,plain,
    ( subset(identity_relation_of(X1),cross_product(X2,X1))
    | ~ member(esk11_2(identity_relation_of(X1),cross_product(X2,X1)),X2)
    | $false ),
    inference(rw,[status(thm)],[38611,463,theory(equality)]) ).

cnf(38622,plain,
    ( subset(identity_relation_of(X1),cross_product(X2,X1))
    | ~ member(esk11_2(identity_relation_of(X1),cross_product(X2,X1)),X2) ),
    inference(cn,[status(thm)],[38621,theory(equality)]) ).

cnf(58781,plain,
    ( subset(identity_relation_of(X1),cross_product(X1,X1))
    | ~ ilf_type(cross_product(X1,X1),binary_relation_type) ),
    inference(spm,[status(thm)],[38622,374,theory(equality)]) ).

cnf(58792,plain,
    ( subset(identity_relation_of(X1),cross_product(X1,X1))
    | $false ),
    inference(rw,[status(thm)],[58781,463,theory(equality)]) ).

cnf(58793,plain,
    subset(identity_relation_of(X1),cross_product(X1,X1)),
    inference(cn,[status(thm)],[58792,theory(equality)]) ).

cnf(58815,negated_conjecture,
    $false,
    inference(rw,[status(thm)],[37,58793,theory(equality)]) ).

cnf(58816,negated_conjecture,
    $false,
    inference(cn,[status(thm)],[58815,theory(equality)]) ).

cnf(58817,negated_conjecture,
    $false,
    58816,
    [proof] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% % SZS status Started for /home/graph/tptp/TPTP/Problems/SET/SET665+3.p
% --creating new selector for []
% -running prover on /tmp/tmp0FBQVm/sel_SET665+3.p_1 with time limit 29
% -prover status Theorem
% Problem SET665+3.p solved in phase 0.
% % SZS status Theorem for /home/graph/tptp/TPTP/Problems/SET/SET665+3.p
% % SZS status Ended for /home/graph/tptp/TPTP/Problems/SET/SET665+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
% 
%------------------------------------------------------------------------------