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LEO-II---2.3.1.THM-CRf.s

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%------------------------------------------------------------------------------
% File     : LEO-II---2.3.1
% Problem  : SEU264+2 : TPTP v9.3.1. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p

% Computer : n014.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8046.5625MB
% OS       : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Wed Oct  7 10:43:43 AM UTC 2026

% Result   : Theorem 37.79s 6.52s
% Output   : CNFRefutation 37.79s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   29
%            Number of leaves      :   83
% Syntax   : Number of formulae    :  929 ( 522 unt;   0 typ;   0 def)
%            Number of atoms       : 5460 (1605 equ;   0 cnn)
%            Maximal formula atoms :   11 (   5 avg)
%            Number of connectives : 10707 (2195   ~;1535   |;  87   &;6669   @)
%                                         (  54 <=>; 167  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   15 (   3 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   81 (  78 usr;   7 con; 0-3 aty)
%            Number of variables   : 2204 (   0   ^;2195   !;   9   ?;2204   :)

% Comments : 
%------------------------------------------------------------------------------
thf(tp_antisymmetric,type,
    antisymmetric: $i > $o ).

thf(tp_apply,type,
    apply: $i > $i > $i ).

thf(tp_are_equipotent,type,
    are_equipotent: $i > $i > $o ).

thf(tp_being_limit_ordinal,type,
    being_limit_ordinal: $i > $o ).

thf(tp_cartesian_product2,type,
    cartesian_product2: $i > $i > $i ).

thf(tp_cast_to_subset,type,
    cast_to_subset: $i > $i ).

thf(tp_complements_of_subsets,type,
    complements_of_subsets: $i > $i > $i ).

thf(tp_connected,type,
    connected: $i > $o ).

thf(tp_disjoint,type,
    disjoint: $i > $i > $o ).

thf(tp_element,type,
    element: $i > $i > $o ).

thf(tp_empty,type,
    empty: $i > $o ).

thf(tp_empty_set,type,
    empty_set: $i ).

thf(tp_epsilon_connected,type,
    epsilon_connected: $i > $o ).

thf(tp_epsilon_transitive,type,
    epsilon_transitive: $i > $o ).

thf(tp_fiber,type,
    fiber: $i > $i > $i ).

thf(tp_function,type,
    function: $i > $o ).

thf(tp_function_inverse,type,
    function_inverse: $i > $i ).

thf(tp_identity_relation,type,
    identity_relation: $i > $i ).

thf(tp_in,type,
    in: $i > $i > $o ).

thf(tp_is_antisymmetric_in,type,
    is_antisymmetric_in: $i > $i > $o ).

thf(tp_is_connected_in,type,
    is_connected_in: $i > $i > $o ).

thf(tp_is_reflexive_in,type,
    is_reflexive_in: $i > $i > $o ).

thf(tp_is_transitive_in,type,
    is_transitive_in: $i > $i > $o ).

thf(tp_is_well_founded_in,type,
    is_well_founded_in: $i > $i > $o ).

thf(tp_meet_of_subsets,type,
    meet_of_subsets: $i > $i > $i ).

thf(tp_one_to_one,type,
    one_to_one: $i > $o ).

thf(tp_ordered_pair,type,
    ordered_pair: $i > $i > $i ).

thf(tp_ordinal,type,
    ordinal: $i > $o ).

thf(tp_ordinal_subset,type,
    ordinal_subset: $i > $i > $o ).

thf(tp_powerset,type,
    powerset: $i > $i ).

thf(tp_proper_subset,type,
    proper_subset: $i > $i > $o ).

thf(tp_reflexive,type,
    reflexive: $i > $o ).

thf(tp_relation,type,
    relation: $i > $o ).

thf(tp_relation_composition,type,
    relation_composition: $i > $i > $i ).

thf(tp_relation_dom,type,
    relation_dom: $i > $i ).

thf(tp_relation_dom_restriction,type,
    relation_dom_restriction: $i > $i > $i ).

thf(tp_relation_empty_yielding,type,
    relation_empty_yielding: $i > $o ).

thf(tp_relation_field,type,
    relation_field: $i > $i ).

thf(tp_relation_image,type,
    relation_image: $i > $i > $i ).

thf(tp_relation_inverse,type,
    relation_inverse: $i > $i ).

thf(tp_relation_inverse_image,type,
    relation_inverse_image: $i > $i > $i ).

thf(tp_relation_isomorphism,type,
    relation_isomorphism: $i > $i > $i > $o ).

thf(tp_relation_of2,type,
    relation_of2: $i > $i > $i > $o ).

thf(tp_relation_of2_as_subset,type,
    relation_of2_as_subset: $i > $i > $i > $o ).

thf(tp_relation_restriction,type,
    relation_restriction: $i > $i > $i ).

thf(tp_relation_rng,type,
    relation_rng: $i > $i ).

thf(tp_relation_rng_restriction,type,
    relation_rng_restriction: $i > $i > $i ).

thf(tp_sK10_SY261,type,
    sK10_SY261: $i > $i > $i ).

thf(tp_sK11_SY271,type,
    sK11_SY271: $i > $i > $i ).

thf(tp_sK12_SY297,type,
    sK12_SY297: $i > $i > $i ).

thf(tp_sK13_SY302,type,
    sK13_SY302: $i > $i > $i ).

thf(tp_sK14_SY299,type,
    sK14_SY299: $i > $i > $i ).

thf(tp_sK1_A,type,
    sK1_A: $i ).

thf(tp_sK2_SY156,type,
    sK2_SY156: $i ).

thf(tp_sK3_SY159,type,
    sK3_SY159: $i ).

thf(tp_sK4_SY161,type,
    sK4_SY161: $i ).

thf(tp_sK5_SY221,type,
    sK5_SY221: $i > $i ).

thf(tp_sK6_SY246,type,
    sK6_SY246: $i > $i ).

thf(tp_sK7_SY166,type,
    sK7_SY166: $i > $i ).

thf(tp_sK8_SY263,type,
    sK8_SY263: $i > $i > $i ).

thf(tp_sK9_SY184,type,
    sK9_SY184: $i > $i ).

thf(tp_set_difference,type,
    set_difference: $i > $i > $i ).

thf(tp_set_intersection2,type,
    set_intersection2: $i > $i > $i ).

thf(tp_set_meet,type,
    set_meet: $i > $i ).

thf(tp_set_union2,type,
    set_union2: $i > $i > $i ).

thf(tp_singleton,type,
    singleton: $i > $i ).

thf(tp_subset,type,
    subset: $i > $i > $o ).

thf(tp_subset_complement,type,
    subset_complement: $i > $i > $i ).

thf(tp_subset_difference,type,
    subset_difference: $i > $i > $i > $i ).

thf(tp_succ,type,
    succ: $i > $i ).

thf(tp_transitive,type,
    transitive: $i > $o ).

thf(tp_union,type,
    union: $i > $i ).

thf(tp_union_of_subsets,type,
    union_of_subsets: $i > $i > $i ).

thf(tp_unordered_pair,type,
    unordered_pair: $i > $i > $i ).

thf(tp_unordered_triple,type,
    unordered_triple: $i > $i > $i > $i ).

thf(tp_well_founded_relation,type,
    well_founded_relation: $i > $o ).

thf(tp_well_ordering,type,
    well_ordering: $i > $o ).

thf(tp_well_orders,type,
    well_orders: $i > $i > $o ).

thf(1,axiom,
    ! [A: $i] :
    ? [B: $i] :
      ( ( in @ A @ B )
      & ! [C: $i,D: $i] :
          ( ( ( in @ C @ B )
            & ( subset @ D @ C ) )
         => ( in @ D @ B ) )
      & ! [C: $i] :
          ~ ( ( in @ C @ B )
            & ! [D: $i] :
                ~ ( ( in @ D @ B )
                  & ! [E: $i] :
                      ( ( subset @ E @ C )
                     => ( in @ E @ D ) ) ) )
      & ! [C: $i] :
          ~ ( ( subset @ C @ B )
            & ~ ( are_equipotent @ C @ B )
            & ~ ( in @ C @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t9_tarski) ).

thf(9,axiom,
    ! [A: $i,B: $i] :
      ( ( element @ A @ ( powerset @ B ) )
    <=> ( subset @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t3_subset) ).

thf(17,axiom,
    ! [A: $i,B: $i] : ( subset @ A @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',reflexivity_r1_tarski) ).

thf(19,axiom,
    ! [A: $i,B: $i] :
      ( ( ( ordinal @ A )
        & ( ordinal @ B ) )
     => ( ( ordinal_subset @ A @ B )
      <=> ( subset @ A @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',redefinition_r1_ordinal1) ).

thf(20,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( relation_of2_as_subset @ C @ A @ B )
    <=> ( relation_of2 @ C @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',redefinition_m2_relset_1) ).

thf(74,axiom,
    ! [A: $i,B: $i] :
    ? [C: $i] : ( relation_of2_as_subset @ C @ A @ B ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',existence_m2_relset_1) ).

thf(77,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( relation_of2_as_subset @ C @ A @ B )
     => ( element @ C @ ( powerset @ ( cartesian_product2 @ A @ B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_m2_relset_1) ).

thf(78,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_m1_subset_1) ).

thf(79,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_m1_relset_1) ).

thf(80,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k9_relat_1) ).

thf(89,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k4_xboole_0) ).

thf(90,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k4_tarski) ).

thf(92,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k3_xboole_0) ).

thf(93,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k3_tarski) ).

thf(95,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k3_relat_1) ).

thf(96,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k2_zfmisc_1) ).

thf(97,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k2_xboole_0) ).

thf(99,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k2_tarski) ).

thf(101,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k2_relat_1) ).

thf(103,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_zfmisc_1) ).

thf(104,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_xboole_0) ).

thf(105,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_wellord1) ).

thf(106,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_tarski) ).

thf(107,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_setfam_1) ).

thf(108,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_relat_1) ).

thf(109,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_ordinal1) ).

thf(110,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_funct_1) ).

thf(111,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_enumset1) ).

thf(112,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k10_relat_1) ).

thf(115,axiom,
    ! [A: $i,B: $i] :
      ( ( proper_subset @ A @ B )
    <=> ( ( subset @ A @ B )
        & ( A != B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d8_xboole_0) ).

thf(142,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
    <=> ! [C: $i] :
          ( ( in @ C @ A )
         => ( in @ C @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d3_tarski) ).

thf(143,axiom,
    ! [A: $i] :
      ( ( relation @ A )
     => ! [B: $i] :
          ( ( relation @ B )
         => ( ( subset @ A @ B )
          <=> ! [C: $i,D: $i] :
                ( ( in @ ( ordered_pair @ C @ D ) @ A )
               => ( in @ ( ordered_pair @ C @ D ) @ B ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d3_relat_1) ).

thf(151,axiom,
    ! [A: $i] :
      ( ( epsilon_transitive @ A )
    <=> ! [B: $i] :
          ( ( in @ B @ A )
         => ( subset @ B @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d2_ordinal1) ).

thf(152,axiom,
    ! [A: $i,B: $i] :
      ( ( B
        = ( powerset @ A ) )
    <=> ! [C: $i] :
          ( ( in @ C @ B )
        <=> ( subset @ C @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_zfmisc_1) ).

thf(157,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( relation_of2 @ C @ A @ B )
    <=> ( subset @ C @ ( cartesian_product2 @ A @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_relset_1) ).

thf(171,axiom,
    ! [A: $i,B: $i] :
      ( ( A = B )
    <=> ( ( subset @ A @ B )
        & ( subset @ B @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d10_xboole_0) ).

thf(188,axiom,
    ! [A: $i,B: $i] :
      ( ( relation @ B )
     => ( subset @ ( relation_rng @ ( relation_dom_restriction @ B @ A ) ) @ ( relation_rng @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t99_relat_1) ).

thf(190,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ( subset @ A @ ( union @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t92_zfmisc_1) ).

thf(193,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( subset @ A @ B )
        & ( subset @ C @ B ) )
     => ( subset @ ( set_union2 @ A @ C ) @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t8_xboole_1) ).

thf(196,axiom,
    ! [A: $i,B: $i] :
      ( ( relation @ B )
     => ( subset @ ( relation_dom_restriction @ B @ A ) @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t88_relat_1) ).

thf(199,axiom,
    ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t7_xboole_1) ).

thf(204,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
     => ( A = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t6_zfmisc_1) ).

thf(210,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( subset @ A @ B )
        & ( disjoint @ B @ C ) )
     => ( disjoint @ A @ C ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t63_xboole_1) ).

thf(212,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( subset @ A @ B )
        & ( proper_subset @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t60_xboole_1) ).

thf(232,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
     => ( B
        = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t45_xboole_1) ).

thf(233,axiom,
    ! [A: $i] :
      ( ( relation @ A )
     => ! [B: $i] :
          ( ( relation @ B )
         => ( subset @ ( relation_rng @ ( relation_composition @ A @ B ) ) @ ( relation_rng @ B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t45_relat_1) ).

thf(234,axiom,
    ! [A: $i] :
      ( ( relation @ A )
     => ! [B: $i] :
          ( ( relation @ B )
         => ( subset @ ( relation_dom @ ( relation_composition @ A @ B ) ) @ ( relation_dom @ A ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t44_relat_1) ).

thf(239,axiom,
    ! [A: $i] :
      ( ( subset @ A @ empty_set )
     => ( A = empty_set ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t3_xboole_1) ).

thf(242,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ ( singleton @ B ) )
    <=> ( ( A = empty_set )
        | ( A
          = ( singleton @ B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t39_zfmisc_1) ).

thf(245,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( subset @ ( unordered_pair @ A @ B ) @ C )
    <=> ( ( in @ A @ C )
        & ( in @ B @ C ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t38_zfmisc_1) ).

thf(246,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ B )
    <=> ( in @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t37_zfmisc_1) ).

thf(247,axiom,
    ! [A: $i,B: $i] :
      ( ( ( set_difference @ A @ B )
        = empty_set )
    <=> ( subset @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t37_xboole_1) ).

thf(249,axiom,
    ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t36_xboole_1) ).

thf(253,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( subset @ A @ B )
     => ( subset @ ( set_difference @ A @ C ) @ ( set_difference @ B @ C ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t33_xboole_1) ).

thf(258,axiom,
    ! [A: $i] :
      ( ! [B: $i] :
          ( ( in @ B @ A )
         => ( ( ordinal @ B )
            & ( subset @ B @ A ) ) )
     => ( ordinal @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t31_ordinal1) ).

thf(260,axiom,
    ! [A: $i] : ( subset @ empty_set @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t2_xboole_1) ).

thf(261,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
     => ( ( set_intersection2 @ A @ B )
        = A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t28_xboole_1) ).

thf(262,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( subset @ A @ B )
     => ( subset @ ( set_intersection2 @ A @ C ) @ ( set_intersection2 @ B @ C ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t26_xboole_1) ).

thf(264,axiom,
    ! [A: $i] :
      ( ( relation @ A )
     => ! [B: $i] :
          ( ( relation @ B )
         => ( ( subset @ A @ B )
           => ( ( subset @ ( relation_dom @ A ) @ ( relation_dom @ B ) )
              & ( subset @ ( relation_rng @ A ) @ ( relation_rng @ B ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t25_relat_1) ).

thf(272,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( relation @ C )
     => ( subset @ ( fiber @ ( relation_restriction @ C @ A ) @ B ) @ ( fiber @ C @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t21_wellord1) ).

thf(276,axiom,
    ! [A: $i,B: $i] :
      ( ( relation @ B )
     => ( ( subset @ ( relation_field @ ( relation_restriction @ B @ A ) ) @ ( relation_field @ B ) )
        & ( subset @ ( relation_field @ ( relation_restriction @ B @ A ) ) @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t20_wellord1) ).

thf(279,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( subset @ A @ B )
        & ( subset @ B @ C ) )
     => ( subset @ A @ C ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t1_xboole_1) ).

thf(280,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( subset @ A @ B )
        & ( subset @ A @ C ) )
     => ( subset @ A @ ( set_intersection2 @ B @ C ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t19_xboole_1) ).

thf(283,axiom,
    ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t17_xboole_1) ).

thf(285,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( relation @ C )
     => ( ( subset @ A @ B )
       => ( subset @ ( relation_inverse_image @ C @ A ) @ ( relation_inverse_image @ C @ B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t178_relat_1) ).

thf(288,axiom,
    ! [A: $i,B: $i] :
      ( ( relation @ B )
     => ( subset @ ( relation_inverse_image @ B @ A ) @ ( relation_dom @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t167_relat_1) ).

thf(291,axiom,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( relation_of2_as_subset @ D @ C @ A )
     => ( ( subset @ ( relation_rng @ D ) @ B )
       => ( relation_of2_as_subset @ D @ C @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t14_relset_1) ).

thf(297,axiom,
    ! [A: $i,B: $i] :
      ( ( relation @ B )
     => ( subset @ ( relation_image @ B @ A ) @ ( relation_rng @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t144_relat_1) ).

thf(300,axiom,
    ! [A: $i] :
    ? [B: $i] :
      ( ( in @ A @ B )
      & ! [C: $i,D: $i] :
          ( ( ( in @ C @ B )
            & ( subset @ D @ C ) )
         => ( in @ D @ B ) )
      & ! [C: $i] :
          ( ( in @ C @ B )
         => ( in @ ( powerset @ C ) @ B ) )
      & ! [C: $i] :
          ~ ( ( subset @ C @ B )
            & ~ ( are_equipotent @ C @ B )
            & ~ ( in @ C @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t136_zfmisc_1) ).

thf(301,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
     => ( ( set_union2 @ A @ B )
        = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t12_xboole_1) ).

thf(302,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( relation_of2_as_subset @ C @ A @ B )
     => ( ( subset @ ( relation_dom @ C ) @ A )
        & ( subset @ ( relation_rng @ C ) @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t12_relset_1) ).

thf(303,axiom,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( ( subset @ A @ B )
        & ( subset @ C @ D ) )
     => ( subset @ ( cartesian_product2 @ A @ C ) @ ( cartesian_product2 @ B @ D ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t119_zfmisc_1) ).

thf(305,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( subset @ A @ B )
     => ( ( subset @ ( cartesian_product2 @ A @ C ) @ ( cartesian_product2 @ B @ C ) )
        & ( subset @ ( cartesian_product2 @ C @ A ) @ ( cartesian_product2 @ C @ B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t118_zfmisc_1) ).

thf(306,axiom,
    ! [A: $i,B: $i] :
      ( ( relation @ B )
     => ( subset @ ( relation_rng @ ( relation_rng_restriction @ A @ B ) ) @ ( relation_rng @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t118_relat_1) ).

thf(307,axiom,
    ! [A: $i,B: $i] :
      ( ( relation @ B )
     => ( subset @ ( relation_rng_restriction @ A @ B ) @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t117_relat_1) ).

thf(308,axiom,
    ! [A: $i,B: $i] :
      ( ( relation @ B )
     => ( subset @ ( relation_rng @ ( relation_rng_restriction @ A @ B ) ) @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t116_relat_1) ).

thf(316,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ( subset @ A @ ( union @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l50_zfmisc_1) ).

thf(317,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ ( singleton @ B ) )
    <=> ( ( A = empty_set )
        | ( A
          = ( singleton @ B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l4_zfmisc_1) ).

thf(319,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( subset @ A @ B )
     => ( ( in @ C @ A )
        | ( subset @ A @ ( set_difference @ B @ ( singleton @ C ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l3_zfmisc_1) ).

thf(322,axiom,
    ! [A: $i,B: $i] :
      ( ( ( set_difference @ A @ B )
        = empty_set )
    <=> ( subset @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l32_xboole_1) ).

thf(323,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ B )
    <=> ( in @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l2_zfmisc_1) ).

thf(325,axiom,
    ! [A: $i,B: $i] :
      ( ( relation @ B )
     => ( subset @ ( relation_dom @ ( relation_rng_restriction @ A @ B ) ) @ ( relation_dom @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l29_wellord1) ).

thf(331,conjecture,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( relation_of2_as_subset @ D @ C @ A )
     => ( ( subset @ A @ B )
       => ( relation_of2_as_subset @ D @ C @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t16_relset_1) ).

thf(332,negated_conjecture,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( relation_of2_as_subset @ D @ C @ A )
         => ( ( subset @ A @ B )
           => ( relation_of2_as_subset @ D @ C @ B ) ) ) )
    = $false ),
    inference(negate_conjecture,[status(cth)],[331]) ).

thf(333,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( relation_of2_as_subset @ D @ C @ A )
         => ( ( subset @ A @ B )
           => ( relation_of2_as_subset @ D @ C @ B ) ) ) )
    = $false ),
    inference(unfold_def,[status(thm)],[332]) ).

thf(334,plain,
    ( ( ! [A: $i] :
        ? [B: $i] :
          ( ( in @ A @ B )
          & ! [C: $i,D: $i] :
              ( ( ( in @ C @ B )
                & ( subset @ D @ C ) )
             => ( in @ D @ B ) )
          & ! [C: $i] :
              ~ ( ( in @ C @ B )
                & ! [D: $i] :
                    ~ ( ( in @ D @ B )
                      & ! [E: $i] :
                          ( ( subset @ E @ C )
                         => ( in @ E @ D ) ) ) )
          & ! [C: $i] :
              ~ ( ( subset @ C @ B )
                & ~ ( are_equipotent @ C @ B )
                & ~ ( in @ C @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1]) ).

thf(335,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ A @ ( powerset @ B ) )
        <=> ( subset @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[9]) ).

thf(336,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[17]) ).

thf(337,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ordinal @ A )
            & ( ordinal @ B ) )
         => ( ( ordinal_subset @ A @ B )
          <=> ( subset @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[19]) ).

thf(338,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( relation_of2_as_subset @ C @ A @ B )
        <=> ( relation_of2 @ C @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[20]) ).

thf(339,plain,
    ( ( ! [A: $i,B: $i] :
        ? [C: $i] : ( relation_of2_as_subset @ C @ A @ B ) )
    = $true ),
    inference(unfold_def,[status(thm)],[74]) ).

thf(340,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( relation_of2_as_subset @ C @ A @ B )
         => ( element @ C @ ( powerset @ ( cartesian_product2 @ A @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[77]) ).

thf(341,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[78]) ).

thf(342,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[79]) ).

thf(343,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[80]) ).

thf(344,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[89]) ).

thf(345,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[90]) ).

thf(346,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[92]) ).

thf(347,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[93]) ).

thf(348,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[95]) ).

thf(349,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[96]) ).

thf(350,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[97]) ).

thf(351,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[99]) ).

thf(352,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[101]) ).

thf(353,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[103]) ).

thf(354,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[104]) ).

thf(355,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[105]) ).

thf(356,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[106]) ).

thf(357,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[107]) ).

thf(358,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[108]) ).

thf(359,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[109]) ).

thf(360,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[110]) ).

thf(361,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[111]) ).

thf(362,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[112]) ).

thf(363,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( proper_subset @ A @ B )
        <=> ( ( subset @ A @ B )
            & ( A != B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[115]) ).

thf(364,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
        <=> ! [C: $i] :
              ( ( in @ C @ A )
             => ( in @ C @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[142]) ).

thf(365,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ! [B: $i] :
              ( ( relation @ B )
             => ( ( subset @ A @ B )
              <=> ! [C: $i,D: $i] :
                    ( ( in @ ( ordered_pair @ C @ D ) @ A )
                   => ( in @ ( ordered_pair @ C @ D ) @ B ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[143]) ).

thf(366,plain,
    ( ( ! [A: $i] :
          ( ( epsilon_transitive @ A )
        <=> ! [B: $i] :
              ( ( in @ B @ A )
             => ( subset @ B @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[151]) ).

thf(367,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( powerset @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( subset @ C @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[152]) ).

thf(368,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( relation_of2 @ C @ A @ B )
        <=> ( subset @ C @ ( cartesian_product2 @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[157]) ).

thf(369,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
        <=> ( ( subset @ A @ B )
            & ( subset @ B @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[171]) ).

thf(370,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( relation @ B )
         => ( subset @ ( relation_rng @ ( relation_dom_restriction @ B @ A ) ) @ ( relation_rng @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[188]) ).

thf(371,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[190]) ).

thf(372,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ C @ B ) )
         => ( subset @ ( set_union2 @ A @ C ) @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[193]) ).

thf(373,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( relation @ B )
         => ( subset @ ( relation_dom_restriction @ B @ A ) @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[196]) ).

thf(374,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[199]) ).

thf(375,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[204]) ).

thf(376,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( disjoint @ B @ C ) )
         => ( disjoint @ A @ C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[210]) ).

thf(377,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( subset @ A @ B )
            & ( proper_subset @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[212]) ).

thf(378,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[232]) ).

thf(379,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ! [B: $i] :
              ( ( relation @ B )
             => ( subset @ ( relation_rng @ ( relation_composition @ A @ B ) ) @ ( relation_rng @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[233]) ).

thf(380,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ! [B: $i] :
              ( ( relation @ B )
             => ( subset @ ( relation_dom @ ( relation_composition @ A @ B ) ) @ ( relation_dom @ A ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[234]) ).

thf(381,plain,
    ( ( ! [A: $i] :
          ( ( subset @ A @ empty_set )
         => ( A = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[239]) ).

thf(382,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ ( singleton @ B ) )
        <=> ( ( A = empty_set )
            | ( A
              = ( singleton @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[242]) ).

thf(383,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ ( unordered_pair @ A @ B ) @ C )
        <=> ( ( in @ A @ C )
            & ( in @ B @ C ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[245]) ).

thf(384,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ B )
        <=> ( in @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[246]) ).

thf(385,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
            = empty_set )
        <=> ( subset @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[247]) ).

thf(386,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[249]) ).

thf(387,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ A @ B )
         => ( subset @ ( set_difference @ A @ C ) @ ( set_difference @ B @ C ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[253]) ).

thf(388,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i] :
              ( ( in @ B @ A )
             => ( ( ordinal @ B )
                & ( subset @ B @ A ) ) )
         => ( ordinal @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[258]) ).

thf(389,plain,
    ( ( ! [A: $i] : ( subset @ empty_set @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[260]) ).

thf(390,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[261]) ).

thf(391,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ A @ B )
         => ( subset @ ( set_intersection2 @ A @ C ) @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[262]) ).

thf(392,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ! [B: $i] :
              ( ( relation @ B )
             => ( ( subset @ A @ B )
               => ( ( subset @ ( relation_dom @ A ) @ ( relation_dom @ B ) )
                  & ( subset @ ( relation_rng @ A ) @ ( relation_rng @ B ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[264]) ).

thf(393,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( relation @ C )
         => ( subset @ ( fiber @ ( relation_restriction @ C @ A ) @ B ) @ ( fiber @ C @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[272]) ).

thf(394,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( relation @ B )
         => ( ( subset @ ( relation_field @ ( relation_restriction @ B @ A ) ) @ ( relation_field @ B ) )
            & ( subset @ ( relation_field @ ( relation_restriction @ B @ A ) ) @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[276]) ).

thf(395,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ B @ C ) )
         => ( subset @ A @ C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[279]) ).

thf(396,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ A @ C ) )
         => ( subset @ A @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[280]) ).

thf(397,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[283]) ).

thf(398,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( relation @ C )
         => ( ( subset @ A @ B )
           => ( subset @ ( relation_inverse_image @ C @ A ) @ ( relation_inverse_image @ C @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[285]) ).

thf(399,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( relation @ B )
         => ( subset @ ( relation_inverse_image @ B @ A ) @ ( relation_dom @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[288]) ).

thf(400,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( relation_of2_as_subset @ D @ C @ A )
         => ( ( subset @ ( relation_rng @ D ) @ B )
           => ( relation_of2_as_subset @ D @ C @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[291]) ).

thf(401,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( relation @ B )
         => ( subset @ ( relation_image @ B @ A ) @ ( relation_rng @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[297]) ).

thf(402,plain,
    ( ( ! [A: $i] :
        ? [B: $i] :
          ( ( in @ A @ B )
          & ! [C: $i,D: $i] :
              ( ( ( in @ C @ B )
                & ( subset @ D @ C ) )
             => ( in @ D @ B ) )
          & ! [C: $i] :
              ( ( in @ C @ B )
             => ( in @ ( powerset @ C ) @ B ) )
          & ! [C: $i] :
              ~ ( ( subset @ C @ B )
                & ~ ( are_equipotent @ C @ B )
                & ~ ( in @ C @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[300]) ).

thf(403,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[301]) ).

thf(404,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( relation_of2_as_subset @ C @ A @ B )
         => ( ( subset @ ( relation_dom @ C ) @ A )
            & ( subset @ ( relation_rng @ C ) @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[302]) ).

thf(405,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ C @ D ) )
         => ( subset @ ( cartesian_product2 @ A @ C ) @ ( cartesian_product2 @ B @ D ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[303]) ).

thf(406,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ A @ B )
         => ( ( subset @ ( cartesian_product2 @ A @ C ) @ ( cartesian_product2 @ B @ C ) )
            & ( subset @ ( cartesian_product2 @ C @ A ) @ ( cartesian_product2 @ C @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[305]) ).

thf(407,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( relation @ B )
         => ( subset @ ( relation_rng @ ( relation_rng_restriction @ A @ B ) ) @ ( relation_rng @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[306]) ).

thf(408,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( relation @ B )
         => ( subset @ ( relation_rng_restriction @ A @ B ) @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[307]) ).

thf(409,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( relation @ B )
         => ( subset @ ( relation_rng @ ( relation_rng_restriction @ A @ B ) ) @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[308]) ).

thf(410,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[316]) ).

thf(411,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ ( singleton @ B ) )
        <=> ( ( A = empty_set )
            | ( A
              = ( singleton @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[317]) ).

thf(412,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ A @ B )
         => ( ( in @ C @ A )
            | ( subset @ A @ ( set_difference @ B @ ( singleton @ C ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[319]) ).

thf(413,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
            = empty_set )
        <=> ( subset @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[322]) ).

thf(414,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ B )
        <=> ( in @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[323]) ).

thf(415,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( relation @ B )
         => ( subset @ ( relation_dom @ ( relation_rng_restriction @ A @ B ) ) @ ( relation_dom @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[325]) ).

thf(416,plain,
    ( ( ! [SY156: $i,SY157: $i,SY158: $i] :
          ( ( relation_of2_as_subset @ SY158 @ SY157 @ sK1_A )
         => ( ( subset @ sK1_A @ SY156 )
           => ( relation_of2_as_subset @ SY158 @ SY157 @ SY156 ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[333]) ).

thf(417,plain,
    ( ( ! [SY159: $i,SY160: $i] :
          ( ( relation_of2_as_subset @ SY160 @ SY159 @ sK1_A )
         => ( ( subset @ sK1_A @ sK2_SY156 )
           => ( relation_of2_as_subset @ SY160 @ SY159 @ sK2_SY156 ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[416]) ).

thf(418,plain,
    ( ( ! [SY161: $i] :
          ( ( relation_of2_as_subset @ SY161 @ sK3_SY159 @ sK1_A )
         => ( ( subset @ sK1_A @ sK2_SY156 )
           => ( relation_of2_as_subset @ SY161 @ sK3_SY159 @ sK2_SY156 ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[417]) ).

thf(419,plain,
    ( ( ( relation_of2_as_subset @ sK4_SY161 @ sK3_SY159 @ sK1_A )
     => ( ( subset @ sK1_A @ sK2_SY156 )
       => ( relation_of2_as_subset @ sK4_SY161 @ sK3_SY159 @ sK2_SY156 ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[418]) ).

thf(420,plain,
    ( ( relation_of2_as_subset @ sK4_SY161 @ sK3_SY159 @ sK1_A )
    = $true ),
    inference(standard_cnf,[status(thm)],[419]) ).

thf(421,plain,
    ( ( subset @ sK1_A @ sK2_SY156 )
    = $true ),
    inference(standard_cnf,[status(thm)],[419]) ).

thf(422,plain,
    ( ( relation_of2_as_subset @ sK4_SY161 @ sK3_SY159 @ sK2_SY156 )
    = $false ),
    inference(standard_cnf,[status(thm)],[419]) ).

thf(423,plain,
    ( ( ~ ( relation_of2_as_subset @ sK4_SY161 @ sK3_SY159 @ sK2_SY156 ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[422]) ).

thf(424,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( relation @ B )
         => ( subset @ ( relation_dom @ ( relation_rng_restriction @ A @ B ) ) @ ( relation_dom @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[415]) ).

thf(425,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ B )
        <=> ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[414]) ).

thf(426,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
            = empty_set )
        <=> ( subset @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[413]) ).

thf(427,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ A @ B )
         => ( ( in @ C @ A )
            | ( subset @ A @ ( set_difference @ B @ ( singleton @ C ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[412]) ).

thf(428,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ ( singleton @ B ) )
        <=> ( ( A = empty_set )
            | ( A
              = ( singleton @ B ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[411]) ).

thf(429,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[410]) ).

thf(430,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( relation @ B )
         => ( subset @ ( relation_rng @ ( relation_rng_restriction @ A @ B ) ) @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[409]) ).

thf(431,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( relation @ B )
         => ( subset @ ( relation_rng_restriction @ A @ B ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[408]) ).

thf(432,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( relation @ B )
         => ( subset @ ( relation_rng @ ( relation_rng_restriction @ A @ B ) ) @ ( relation_rng @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[407]) ).

thf(433,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ A @ B )
         => ( ( subset @ ( cartesian_product2 @ A @ C ) @ ( cartesian_product2 @ B @ C ) )
            & ( subset @ ( cartesian_product2 @ C @ A ) @ ( cartesian_product2 @ C @ B ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[406]) ).

thf(434,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ C @ D ) )
         => ( subset @ ( cartesian_product2 @ A @ C ) @ ( cartesian_product2 @ B @ D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[405]) ).

thf(435,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( relation_of2_as_subset @ C @ A @ B )
         => ( ( subset @ ( relation_dom @ C ) @ A )
            & ( subset @ ( relation_rng @ C ) @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[404]) ).

thf(436,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[403]) ).

thf(437,plain,
    ( ( ! [A: $i] :
        ? [B: $i] :
          ( ( in @ A @ B )
          & ! [C: $i,D: $i] :
              ( ( ( in @ C @ B )
                & ( subset @ D @ C ) )
             => ( in @ D @ B ) )
          & ! [C: $i] :
              ( ( in @ C @ B )
             => ( in @ ( powerset @ C ) @ B ) )
          & ! [C: $i] :
              ~ ( ( subset @ C @ B )
                & ~ ( are_equipotent @ C @ B )
                & ~ ( in @ C @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[402]) ).

thf(438,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( relation @ B )
         => ( subset @ ( relation_image @ B @ A ) @ ( relation_rng @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[401]) ).

thf(439,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( relation_of2_as_subset @ D @ C @ A )
         => ( ( subset @ ( relation_rng @ D ) @ B )
           => ( relation_of2_as_subset @ D @ C @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[400]) ).

thf(440,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( relation @ B )
         => ( subset @ ( relation_inverse_image @ B @ A ) @ ( relation_dom @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[399]) ).

thf(441,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( relation @ C )
         => ( ( subset @ A @ B )
           => ( subset @ ( relation_inverse_image @ C @ A ) @ ( relation_inverse_image @ C @ B ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[398]) ).

thf(442,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[397]) ).

thf(443,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ A @ C ) )
         => ( subset @ A @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[396]) ).

thf(444,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ B @ C ) )
         => ( subset @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[395]) ).

thf(445,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( relation @ B )
         => ( ( subset @ ( relation_field @ ( relation_restriction @ B @ A ) ) @ ( relation_field @ B ) )
            & ( subset @ ( relation_field @ ( relation_restriction @ B @ A ) ) @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[394]) ).

thf(446,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( relation @ C )
         => ( subset @ ( fiber @ ( relation_restriction @ C @ A ) @ B ) @ ( fiber @ C @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[393]) ).

thf(447,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ! [B: $i] :
              ( ( relation @ B )
             => ( ( subset @ A @ B )
               => ( ( subset @ ( relation_dom @ A ) @ ( relation_dom @ B ) )
                  & ( subset @ ( relation_rng @ A ) @ ( relation_rng @ B ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[392]) ).

thf(448,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ A @ B )
         => ( subset @ ( set_intersection2 @ A @ C ) @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[391]) ).

thf(449,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(copy,[status(thm)],[390]) ).

thf(450,plain,
    ( ( ! [A: $i] : ( subset @ empty_set @ A ) )
    = $true ),
    inference(copy,[status(thm)],[389]) ).

thf(451,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i] :
              ( ( in @ B @ A )
             => ( ( ordinal @ B )
                & ( subset @ B @ A ) ) )
         => ( ordinal @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[388]) ).

thf(452,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ A @ B )
         => ( subset @ ( set_difference @ A @ C ) @ ( set_difference @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[387]) ).

thf(453,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[386]) ).

thf(454,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
            = empty_set )
        <=> ( subset @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[385]) ).

thf(455,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ B )
        <=> ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[384]) ).

thf(456,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ ( unordered_pair @ A @ B ) @ C )
        <=> ( ( in @ A @ C )
            & ( in @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[383]) ).

thf(457,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ ( singleton @ B ) )
        <=> ( ( A = empty_set )
            | ( A
              = ( singleton @ B ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[382]) ).

thf(458,plain,
    ( ( ! [A: $i] :
          ( ( subset @ A @ empty_set )
         => ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[381]) ).

thf(459,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ! [B: $i] :
              ( ( relation @ B )
             => ( subset @ ( relation_dom @ ( relation_composition @ A @ B ) ) @ ( relation_dom @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[380]) ).

thf(460,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ! [B: $i] :
              ( ( relation @ B )
             => ( subset @ ( relation_rng @ ( relation_composition @ A @ B ) ) @ ( relation_rng @ B ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[379]) ).

thf(461,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[378]) ).

thf(462,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( subset @ A @ B )
            & ( proper_subset @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[377]) ).

thf(463,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( disjoint @ B @ C ) )
         => ( disjoint @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[376]) ).

thf(464,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[375]) ).

thf(465,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[374]) ).

thf(466,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( relation @ B )
         => ( subset @ ( relation_dom_restriction @ B @ A ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[373]) ).

thf(467,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ C @ B ) )
         => ( subset @ ( set_union2 @ A @ C ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[372]) ).

thf(468,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[371]) ).

thf(469,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( relation @ B )
         => ( subset @ ( relation_rng @ ( relation_dom_restriction @ B @ A ) ) @ ( relation_rng @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[370]) ).

thf(470,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
        <=> ( ( subset @ A @ B )
            & ( subset @ B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[369]) ).

thf(471,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( relation_of2 @ C @ A @ B )
        <=> ( subset @ C @ ( cartesian_product2 @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[368]) ).

thf(472,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( powerset @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( subset @ C @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[367]) ).

thf(473,plain,
    ( ( ! [A: $i] :
          ( ( epsilon_transitive @ A )
        <=> ! [B: $i] :
              ( ( in @ B @ A )
             => ( subset @ B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[366]) ).

thf(474,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ! [B: $i] :
              ( ( relation @ B )
             => ( ( subset @ A @ B )
              <=> ! [C: $i,D: $i] :
                    ( ( in @ ( ordered_pair @ C @ D ) @ A )
                   => ( in @ ( ordered_pair @ C @ D ) @ B ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[365]) ).

thf(475,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
        <=> ! [C: $i] :
              ( ( in @ C @ A )
             => ( in @ C @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[364]) ).

thf(476,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( proper_subset @ A @ B )
        <=> ( ( subset @ A @ B )
            & ( A != B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[363]) ).

thf(477,plain,
    $true = $true,
    inference(copy,[status(thm)],[362]) ).

thf(478,plain,
    $true = $true,
    inference(copy,[status(thm)],[361]) ).

thf(479,plain,
    $true = $true,
    inference(copy,[status(thm)],[360]) ).

thf(480,plain,
    $true = $true,
    inference(copy,[status(thm)],[359]) ).

thf(481,plain,
    $true = $true,
    inference(copy,[status(thm)],[358]) ).

thf(482,plain,
    $true = $true,
    inference(copy,[status(thm)],[357]) ).

thf(483,plain,
    $true = $true,
    inference(copy,[status(thm)],[356]) ).

thf(484,plain,
    $true = $true,
    inference(copy,[status(thm)],[355]) ).

thf(485,plain,
    $true = $true,
    inference(copy,[status(thm)],[354]) ).

thf(486,plain,
    $true = $true,
    inference(copy,[status(thm)],[353]) ).

thf(487,plain,
    $true = $true,
    inference(copy,[status(thm)],[352]) ).

thf(488,plain,
    $true = $true,
    inference(copy,[status(thm)],[351]) ).

thf(489,plain,
    $true = $true,
    inference(copy,[status(thm)],[350]) ).

thf(490,plain,
    $true = $true,
    inference(copy,[status(thm)],[349]) ).

thf(491,plain,
    $true = $true,
    inference(copy,[status(thm)],[348]) ).

thf(492,plain,
    $true = $true,
    inference(copy,[status(thm)],[347]) ).

thf(493,plain,
    $true = $true,
    inference(copy,[status(thm)],[346]) ).

thf(494,plain,
    $true = $true,
    inference(copy,[status(thm)],[345]) ).

thf(495,plain,
    $true = $true,
    inference(copy,[status(thm)],[344]) ).

thf(496,plain,
    $true = $true,
    inference(copy,[status(thm)],[343]) ).

thf(497,plain,
    $true = $true,
    inference(copy,[status(thm)],[342]) ).

thf(498,plain,
    $true = $true,
    inference(copy,[status(thm)],[341]) ).

thf(499,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( relation_of2_as_subset @ C @ A @ B )
         => ( element @ C @ ( powerset @ ( cartesian_product2 @ A @ B ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[340]) ).

thf(500,plain,
    ( ( ! [A: $i,B: $i] :
        ? [C: $i] : ( relation_of2_as_subset @ C @ A @ B ) )
    = $true ),
    inference(copy,[status(thm)],[339]) ).

thf(501,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( relation_of2_as_subset @ C @ A @ B )
        <=> ( relation_of2 @ C @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[338]) ).

thf(502,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ordinal @ A )
            & ( ordinal @ B ) )
         => ( ( ordinal_subset @ A @ B )
          <=> ( subset @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[337]) ).

thf(503,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(copy,[status(thm)],[336]) ).

thf(504,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ A @ ( powerset @ B ) )
        <=> ( subset @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[335]) ).

thf(505,plain,
    ( ( ! [A: $i] :
        ? [B: $i] :
          ( ( in @ A @ B )
          & ! [C: $i,D: $i] :
              ( ( ( in @ C @ B )
                & ( subset @ D @ C ) )
             => ( in @ D @ B ) )
          & ! [C: $i] :
              ~ ( ( in @ C @ B )
                & ! [D: $i] :
                    ~ ( ( in @ D @ B )
                      & ! [E: $i] :
                          ( ( subset @ E @ C )
                         => ( in @ E @ D ) ) ) )
          & ! [C: $i] :
              ~ ( ( subset @ C @ B )
                & ~ ( are_equipotent @ C @ B )
                & ~ ( in @ C @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[334]) ).

thf(506,plain,
    ( ( subset @ sK1_A @ sK2_SY156 )
    = $true ),
    inference(copy,[status(thm)],[421]) ).

thf(507,plain,
    ( ( relation_of2_as_subset @ sK4_SY161 @ sK3_SY159 @ sK1_A )
    = $true ),
    inference(copy,[status(thm)],[420]) ).

thf(508,plain,
    ( ( ~ ( relation_of2_as_subset @ sK4_SY161 @ sK3_SY159 @ sK2_SY156 ) )
    = $true ),
    inference(copy,[status(thm)],[423]) ).

thf(509,plain,
    ( ( ! [SX0: $i] :
          ( ~ ! [SX1: $i] :
                ( ~ ( in @ SX1 @ SX0 )
                | ~ ( ~ ( ordinal @ SX1 )
                    | ~ ( subset @ SX1 @ SX0 ) ) )
          | ( ordinal @ SX0 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[451]) ).

thf(510,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( relation @ SX1 )
          | ( subset @ ( relation_rng @ ( relation_dom_restriction @ SX1 @ SX0 ) ) @ ( relation_rng @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[469]) ).

thf(511,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
                | ( in @ SX0 @ SX1 ) )
            | ~ ( ~ ( in @ SX0 @ SX1 )
                | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[455]) ).

thf(512,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ~ ( ~ ( subset @ SX0 @ SX1 )
              | ~ ( proper_subset @ SX1 @ SX0 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[462]) ).

thf(513,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ SX0 @ ( union @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[468]) ).

thf(514,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ~ ( ~ ( ~ ( relation_of2 @ SX2 @ SX0 @ SX1 )
                | ( subset @ SX2 @ ( cartesian_product2 @ SX0 @ SX1 ) ) )
            | ~ ( ~ ( subset @ SX2 @ ( cartesian_product2 @ SX0 @ SX1 ) )
                | ( relation_of2 @ SX2 @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[471]) ).

thf(515,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ( SX1
                 != ( powerset @ SX0 ) )
                | ! [SX2: $i] :
                    ~ ( ~ ( ~ ( in @ SX2 @ SX1 )
                          | ( subset @ SX2 @ SX0 ) )
                      | ~ ( ~ ( subset @ SX2 @ SX0 )
                          | ( in @ SX2 @ SX1 ) ) ) )
            | ~ ( ~ ! [SX2: $i] :
                      ~ ( ~ ( ~ ( in @ SX2 @ SX1 )
                            | ( subset @ SX2 @ SX0 ) )
                        | ~ ( ~ ( subset @ SX2 @ SX0 )
                            | ( in @ SX2 @ SX1 ) ) )
                | ( SX1
                  = ( powerset @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[472]) ).

thf(516,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ~ ( ~ ( subset @ SX0 @ SX1 )
                | ~ ( subset @ SX2 @ SX1 ) )
          | ( subset @ ( set_union2 @ SX0 @ SX2 ) @ SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[467]) ).

thf(517,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( relation @ SX1 )
          | ( subset @ ( relation_image @ SX1 @ SX0 ) @ ( relation_rng @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[438]) ).

thf(518,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( relation @ SX1 )
          | ( subset @ ( relation_dom_restriction @ SX1 @ SX0 ) @ SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[466]) ).

thf(519,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( relation @ SX1 )
          | ~ ( ~ ( subset @ ( relation_field @ ( relation_restriction @ SX1 @ SX0 ) ) @ ( relation_field @ SX1 ) )
              | ~ ( subset @ ( relation_field @ ( relation_restriction @ SX1 @ SX0 ) ) @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[445]) ).

thf(520,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ! [SX2: $i] :
              ~ ( relation_of2_as_subset @ SX2 @ SX0 @ SX1 ) )
    = $true ),
    inference(unfold_def,[status(thm)],[500]) ).

thf(521,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ( ~ ( epsilon_transitive @ SX0 )
                | ! [SX1: $i] :
                    ( ~ ( in @ SX1 @ SX0 )
                    | ( subset @ SX1 @ SX0 ) ) )
            | ~ ( ~ ! [SX1: $i] :
                      ( ~ ( in @ SX1 @ SX0 )
                      | ( subset @ SX1 @ SX0 ) )
                | ( epsilon_transitive @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[473]) ).

thf(522,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ~ ( ~ ( subset @ SX0 @ SX1 )
                | ~ ( subset @ SX0 @ SX2 ) )
          | ( subset @ SX0 @ ( set_intersection2 @ SX1 @ SX2 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[443]) ).

thf(523,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_union2 @ SX0 @ SX1 )
            = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[436]) ).

thf(524,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ~ ( ~ ( ~ ( relation_of2_as_subset @ SX2 @ SX0 @ SX1 )
                | ( relation_of2 @ SX2 @ SX0 @ SX1 ) )
            | ~ ( ~ ( relation_of2 @ SX2 @ SX0 @ SX1 )
                | ( relation_of2_as_subset @ SX2 @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[501]) ).

thf(525,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ~ ( ~ ( ~ ( subset @ ( unordered_pair @ SX0 @ SX1 ) @ SX2 )
                | ~ ( ~ ( in @ SX0 @ SX2 )
                    | ~ ( in @ SX1 @ SX2 ) ) )
            | ~ ( ~ ~ ( ~ ( in @ SX0 @ SX2 )
                      | ~ ( in @ SX1 @ SX2 ) )
                | ( subset @ ( unordered_pair @ SX0 @ SX1 ) @ SX2 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[456]) ).

thf(526,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( relation @ SX1 )
          | ( subset @ ( relation_dom @ ( relation_rng_restriction @ SX0 @ SX1 ) ) @ ( relation_dom @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[424]) ).

thf(527,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( relation @ SX1 )
          | ( subset @ ( relation_inverse_image @ SX1 @ SX0 ) @ ( relation_dom @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[440]) ).

thf(528,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ( ( set_difference @ SX0 @ SX1 )
                 != empty_set )
                | ( subset @ SX0 @ SX1 ) )
            | ~ ( ~ ( subset @ SX0 @ SX1 )
                | ( ( set_difference @ SX0 @ SX1 )
                  = empty_set ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[454]) ).

thf(529,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ~ ( ~ ( subset @ SX0 @ SX1 )
                | ~ ( disjoint @ SX1 @ SX2 ) )
          | ( disjoint @ SX0 @ SX2 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[463]) ).

thf(530,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ( relation_of2_as_subset @ SX2 @ SX0 @ SX1 )
          | ~ ( ~ ( subset @ ( relation_dom @ SX2 ) @ SX0 )
              | ~ ( subset @ ( relation_rng @ SX2 ) @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[435]) ).

thf(531,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( subset @ ( set_intersection2 @ SX0 @ SX2 ) @ ( set_intersection2 @ SX1 @ SX2 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[448]) ).

thf(532,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( relation @ SX1 )
              | ~ ( ~ ( ~ ( subset @ SX0 @ SX1 )
                      | ! [SX2: $i,SX3: $i] :
                          ( ~ ( in @ ( ordered_pair @ SX2 @ SX3 ) @ SX0 )
                          | ( in @ ( ordered_pair @ SX2 @ SX3 ) @ SX1 ) ) )
                  | ~ ( ~ ! [SX2: $i,SX3: $i] :
                            ( ~ ( in @ ( ordered_pair @ SX2 @ SX3 ) @ SX0 )
                            | ( in @ ( ordered_pair @ SX2 @ SX3 ) @ SX1 ) )
                      | ( subset @ SX0 @ SX1 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[474]) ).

thf(533,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ~ ( element @ SX0 @ ( powerset @ SX1 ) )
                | ( subset @ SX0 @ SX1 ) )
            | ~ ( ~ ( subset @ SX0 @ SX1 )
                | ( element @ SX0 @ ( powerset @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[504]) ).

thf(534,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ~ ( subset @ SX0 @ SX1 )
                | ! [SX2: $i] :
                    ( ~ ( in @ SX2 @ SX0 )
                    | ( in @ SX2 @ SX1 ) ) )
            | ~ ( ~ ! [SX2: $i] :
                      ( ~ ( in @ SX2 @ SX0 )
                      | ( in @ SX2 @ SX1 ) )
                | ( subset @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[475]) ).

thf(535,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( relation @ SX1 )
          | ( subset @ ( relation_rng_restriction @ SX0 @ SX1 ) @ SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[431]) ).

thf(536,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ( ( set_difference @ SX0 @ SX1 )
                 != empty_set )
                | ( subset @ SX0 @ SX1 ) )
            | ~ ( ~ ( subset @ SX0 @ SX1 )
                | ( ( set_difference @ SX0 @ SX1 )
                  = empty_set ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[426]) ).

thf(537,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ~ ( ~ ( ordinal @ SX0 )
                | ~ ( ordinal @ SX1 ) )
          | ~ ( ~ ( ~ ( ordinal_subset @ SX0 @ SX1 )
                  | ( subset @ SX0 @ SX1 ) )
              | ~ ( ~ ( subset @ SX0 @ SX1 )
                  | ( ordinal_subset @ SX0 @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[502]) ).

thf(538,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
                | ( SX0 = empty_set )
                | ( SX0
                  = ( singleton @ SX1 ) ) )
            | ~ ( ~ ( ( SX0 = empty_set )
                    | ( SX0
                      = ( singleton @ SX1 ) ) )
                | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[428]) ).

thf(539,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ~ ( ~ ( subset @ SX0 @ SX1 )
                | ~ ( subset @ SX1 @ SX2 ) )
          | ( subset @ SX0 @ SX2 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[444]) ).

thf(540,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( subset @ ( set_difference @ SX0 @ SX2 ) @ ( set_difference @ SX1 @ SX2 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[452]) ).

thf(541,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ ( singleton @ SX0 ) @ ( singleton @ SX1 ) )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[464]) ).

thf(542,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( relation @ SX1 )
              | ~ ( subset @ SX0 @ SX1 )
              | ~ ( ~ ( subset @ ( relation_dom @ SX0 ) @ ( relation_dom @ SX1 ) )
                  | ~ ( subset @ ( relation_rng @ SX0 ) @ ( relation_rng @ SX1 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[447]) ).

thf(543,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( SX1
            = ( set_union2 @ SX0 @ ( set_difference @ SX1 @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[461]) ).

thf(544,plain,
    ( ( ! [SX0: $i] :
          ~ ! [SX1: $i] :
              ~ ~ ( ~ ~ ( ~ ~ ( ~ ( in @ SX0 @ SX1 )
                              | ~ ! [SX2: $i,SX3: $i] :
                                    ( ~ ~ ( ~ ( in @ SX2 @ SX1 )
                                          | ~ ( subset @ SX3 @ SX2 ) )
                                    | ( in @ SX3 @ SX1 ) ) )
                        | ~ ! [SX2: $i] :
                              ~ ~ ( ~ ( in @ SX2 @ SX1 )
                                  | ~ ! [SX3: $i] :
                                        ~ ~ ( ~ ( in @ SX3 @ SX1 )
                                            | ~ ! [SX4: $i] :
                                                  ( ~ ( subset @ SX4 @ SX2 )
                                                  | ( in @ SX4 @ SX3 ) ) ) ) )
                  | ~ ! [SX2: $i] :
                        ~ ~ ( ~ ~ ( ~ ( subset @ SX2 @ SX1 )
                                  | ~ ~ ( are_equipotent @ SX2 @ SX1 ) )
                            | ~ ~ ( in @ SX2 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[505]) ).

thf(545,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
                | ( SX0 = empty_set )
                | ( SX0
                  = ( singleton @ SX1 ) ) )
            | ~ ( ~ ( ( SX0 = empty_set )
                    | ( SX0
                      = ( singleton @ SX1 ) ) )
                | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[457]) ).

thf(546,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ~ ( proper_subset @ SX0 @ SX1 )
                | ~ ( ~ ( subset @ SX0 @ SX1 )
                    | ~ ( ( SX0 != SX1 ) ) ) )
            | ~ ( ~ ~ ( ~ ( subset @ SX0 @ SX1 )
                      | ~ ( ( SX0 != SX1 ) ) )
                | ( proper_subset @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[476]) ).

thf(547,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ( SX0 != SX1 )
                | ~ ( ~ ( subset @ SX0 @ SX1 )
                    | ~ ( subset @ SX1 @ SX0 ) ) )
            | ~ ( ~ ~ ( ~ ( subset @ SX0 @ SX1 )
                      | ~ ( subset @ SX1 @ SX0 ) )
                | ( SX0 = SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[470]) ).

thf(548,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ( relation @ SX2 )
          | ( subset @ ( fiber @ ( relation_restriction @ SX2 @ SX0 ) @ SX1 ) @ ( fiber @ SX2 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[446]) ).

thf(549,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ( relation @ SX2 )
          | ~ ( subset @ SX0 @ SX1 )
          | ( subset @ ( relation_inverse_image @ SX2 @ SX0 ) @ ( relation_inverse_image @ SX2 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[441]) ).

thf(550,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( subset @ SX0 @ empty_set )
          | ( SX0 = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[458]) ).

thf(551,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( relation @ SX1 )
          | ( subset @ ( relation_rng @ ( relation_rng_restriction @ SX0 @ SX1 ) ) @ ( relation_rng @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[432]) ).

thf(552,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( relation @ SX1 )
              | ( subset @ ( relation_rng @ ( relation_composition @ SX0 @ SX1 ) ) @ ( relation_rng @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[460]) ).

thf(553,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ( relation_of2_as_subset @ SX2 @ SX0 @ SX1 )
          | ( element @ SX2 @ ( powerset @ ( cartesian_product2 @ SX0 @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[499]) ).

thf(554,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i,SX3: $i] :
          ( ~ ~ ( ~ ( subset @ SX0 @ SX1 )
                | ~ ( subset @ SX2 @ SX3 ) )
          | ( subset @ ( cartesian_product2 @ SX0 @ SX2 ) @ ( cartesian_product2 @ SX1 @ SX3 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[434]) ).

thf(555,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( relation @ SX1 )
          | ( subset @ ( relation_rng @ ( relation_rng_restriction @ SX0 @ SX1 ) ) @ SX0 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[430]) ).

thf(556,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ~ ( ~ ( subset @ ( cartesian_product2 @ SX0 @ SX2 ) @ ( cartesian_product2 @ SX1 @ SX2 ) )
              | ~ ( subset @ ( cartesian_product2 @ SX2 @ SX0 ) @ ( cartesian_product2 @ SX2 @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[433]) ).

thf(557,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_intersection2 @ SX0 @ SX1 )
            = SX0 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[449]) ).

thf(558,plain,
    ( ( ! [SX0: $i] :
          ~ ! [SX1: $i] :
              ~ ~ ( ~ ~ ( ~ ~ ( ~ ( in @ SX0 @ SX1 )
                              | ~ ! [SX2: $i,SX3: $i] :
                                    ( ~ ~ ( ~ ( in @ SX2 @ SX1 )
                                          | ~ ( subset @ SX3 @ SX2 ) )
                                    | ( in @ SX3 @ SX1 ) ) )
                        | ~ ! [SX2: $i] :
                              ( ~ ( in @ SX2 @ SX1 )
                              | ( in @ ( powerset @ SX2 ) @ SX1 ) ) )
                  | ~ ! [SX2: $i] :
                        ~ ~ ( ~ ~ ( ~ ( subset @ SX2 @ SX1 )
                                  | ~ ~ ( are_equipotent @ SX2 @ SX1 ) )
                            | ~ ~ ( in @ SX2 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[437]) ).

thf(559,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ SX0 @ ( union @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[429]) ).

thf(560,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
                | ( in @ SX0 @ SX1 ) )
            | ~ ( ~ ( in @ SX0 @ SX1 )
                | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[425]) ).

thf(561,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i,SX3: $i] :
          ( ~ ( relation_of2_as_subset @ SX3 @ SX2 @ SX0 )
          | ~ ( subset @ ( relation_rng @ SX3 ) @ SX1 )
          | ( relation_of2_as_subset @ SX3 @ SX2 @ SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[439]) ).

thf(562,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( relation @ SX1 )
              | ( subset @ ( relation_dom @ ( relation_composition @ SX0 @ SX1 ) ) @ ( relation_dom @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[459]) ).

thf(563,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( in @ SX2 @ SX0 )
          | ( subset @ SX0 @ ( set_difference @ SX1 @ ( singleton @ SX2 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[427]) ).

thf(564,plain,
    ! [SV1: $i] :
      ( ( ! [SY162: $i] : ( subset @ ( set_intersection2 @ SV1 @ SY162 ) @ SV1 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[442]) ).

thf(565,plain,
    ! [SV2: $i] :
      ( ( subset @ empty_set @ SV2 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[450]) ).

thf(566,plain,
    ! [SV3: $i] :
      ( ( ! [SY163: $i] : ( subset @ ( set_difference @ SV3 @ SY163 ) @ SV3 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[453]) ).

thf(567,plain,
    ! [SV4: $i] :
      ( ( ! [SY164: $i] : ( subset @ SV4 @ ( set_union2 @ SV4 @ SY164 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[465]) ).

thf(568,plain,
    ! [SV5: $i] :
      ( ( ! [SY165: $i] : ( subset @ SV5 @ SV5 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[503]) ).

thf(569,plain,
    ( ( relation_of2_as_subset @ sK4_SY161 @ sK3_SY159 @ sK2_SY156 )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[508]) ).

thf(570,plain,
    ! [SV6: $i] :
      ( ( ~ ! [SY166: $i] :
              ( ~ ( in @ SY166 @ SV6 )
              | ~ ( ~ ( ordinal @ SY166 )
                  | ~ ( subset @ SY166 @ SV6 ) ) )
        | ( ordinal @ SV6 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[509]) ).

thf(571,plain,
    ! [SV7: $i] :
      ( ( ! [SY167: $i] :
            ( ~ ( relation @ SY167 )
            | ( subset @ ( relation_rng @ ( relation_dom_restriction @ SY167 @ SV7 ) ) @ ( relation_rng @ SY167 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[510]) ).

thf(572,plain,
    ! [SV8: $i] :
      ( ( ! [SY168: $i] :
            ~ ( ~ ( ~ ( subset @ ( singleton @ SV8 ) @ SY168 )
                  | ( in @ SV8 @ SY168 ) )
              | ~ ( ~ ( in @ SV8 @ SY168 )
                  | ( subset @ ( singleton @ SV8 ) @ SY168 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[511]) ).

thf(573,plain,
    ! [SV9: $i] :
      ( ( ! [SY169: $i] :
            ~ ~ ( ~ ( subset @ SV9 @ SY169 )
                | ~ ( proper_subset @ SY169 @ SV9 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[512]) ).

thf(574,plain,
    ! [SV10: $i] :
      ( ( ! [SY170: $i] :
            ( ~ ( in @ SV10 @ SY170 )
            | ( subset @ SV10 @ ( union @ SY170 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[513]) ).

thf(575,plain,
    ! [SV11: $i] :
      ( ( ! [SY171: $i,SY172: $i] :
            ~ ( ~ ( ~ ( relation_of2 @ SY172 @ SV11 @ SY171 )
                  | ( subset @ SY172 @ ( cartesian_product2 @ SV11 @ SY171 ) ) )
              | ~ ( ~ ( subset @ SY172 @ ( cartesian_product2 @ SV11 @ SY171 ) )
                  | ( relation_of2 @ SY172 @ SV11 @ SY171 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[514]) ).

thf(576,plain,
    ! [SV12: $i] :
      ( ( ! [SY173: $i] :
            ~ ( ~ ( ( SY173
                   != ( powerset @ SV12 ) )
                  | ! [SY174: $i] :
                      ~ ( ~ ( ~ ( in @ SY174 @ SY173 )
                            | ( subset @ SY174 @ SV12 ) )
                        | ~ ( ~ ( subset @ SY174 @ SV12 )
                            | ( in @ SY174 @ SY173 ) ) ) )
              | ~ ( ~ ! [SY175: $i] :
                        ~ ( ~ ( ~ ( in @ SY175 @ SY173 )
                              | ( subset @ SY175 @ SV12 ) )
                          | ~ ( ~ ( subset @ SY175 @ SV12 )
                              | ( in @ SY175 @ SY173 ) ) )
                  | ( SY173
                    = ( powerset @ SV12 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[515]) ).

thf(577,plain,
    ! [SV13: $i] :
      ( ( ! [SY176: $i,SY177: $i] :
            ( ~ ~ ( ~ ( subset @ SV13 @ SY176 )
                  | ~ ( subset @ SY177 @ SY176 ) )
            | ( subset @ ( set_union2 @ SV13 @ SY177 ) @ SY176 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[516]) ).

thf(578,plain,
    ! [SV14: $i] :
      ( ( ! [SY178: $i] :
            ( ~ ( relation @ SY178 )
            | ( subset @ ( relation_image @ SY178 @ SV14 ) @ ( relation_rng @ SY178 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[517]) ).

thf(579,plain,
    ! [SV15: $i] :
      ( ( ! [SY179: $i] :
            ( ~ ( relation @ SY179 )
            | ( subset @ ( relation_dom_restriction @ SY179 @ SV15 ) @ SY179 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[518]) ).

thf(580,plain,
    ! [SV16: $i] :
      ( ( ! [SY180: $i] :
            ( ~ ( relation @ SY180 )
            | ~ ( ~ ( subset @ ( relation_field @ ( relation_restriction @ SY180 @ SV16 ) ) @ ( relation_field @ SY180 ) )
                | ~ ( subset @ ( relation_field @ ( relation_restriction @ SY180 @ SV16 ) ) @ SV16 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[519]) ).

thf(581,plain,
    ! [SV17: $i] :
      ( ( ! [SY181: $i] :
            ~ ! [SY182: $i] :
                ~ ( relation_of2_as_subset @ SY182 @ SV17 @ SY181 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[520]) ).

thf(582,plain,
    ! [SV18: $i] :
      ( ( ~ ( ~ ( ~ ( epsilon_transitive @ SV18 )
                | ! [SY183: $i] :
                    ( ~ ( in @ SY183 @ SV18 )
                    | ( subset @ SY183 @ SV18 ) ) )
            | ~ ( ~ ! [SY184: $i] :
                      ( ~ ( in @ SY184 @ SV18 )
                      | ( subset @ SY184 @ SV18 ) )
                | ( epsilon_transitive @ SV18 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[521]) ).

thf(583,plain,
    ! [SV19: $i] :
      ( ( ! [SY185: $i,SY186: $i] :
            ( ~ ~ ( ~ ( subset @ SV19 @ SY185 )
                  | ~ ( subset @ SV19 @ SY186 ) )
            | ( subset @ SV19 @ ( set_intersection2 @ SY185 @ SY186 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[522]) ).

thf(584,plain,
    ! [SV20: $i] :
      ( ( ! [SY187: $i] :
            ( ~ ( subset @ SV20 @ SY187 )
            | ( ( set_union2 @ SV20 @ SY187 )
              = SY187 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[523]) ).

thf(585,plain,
    ! [SV21: $i] :
      ( ( ! [SY188: $i,SY189: $i] :
            ~ ( ~ ( ~ ( relation_of2_as_subset @ SY189 @ SV21 @ SY188 )
                  | ( relation_of2 @ SY189 @ SV21 @ SY188 ) )
              | ~ ( ~ ( relation_of2 @ SY189 @ SV21 @ SY188 )
                  | ( relation_of2_as_subset @ SY189 @ SV21 @ SY188 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[524]) ).

thf(586,plain,
    ! [SV22: $i] :
      ( ( ! [SY190: $i,SY191: $i] :
            ~ ( ~ ( ~ ( subset @ ( unordered_pair @ SV22 @ SY190 ) @ SY191 )
                  | ~ ( ~ ( in @ SV22 @ SY191 )
                      | ~ ( in @ SY190 @ SY191 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SV22 @ SY191 )
                        | ~ ( in @ SY190 @ SY191 ) )
                  | ( subset @ ( unordered_pair @ SV22 @ SY190 ) @ SY191 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[525]) ).

thf(587,plain,
    ! [SV23: $i] :
      ( ( ! [SY192: $i] :
            ( ~ ( relation @ SY192 )
            | ( subset @ ( relation_dom @ ( relation_rng_restriction @ SV23 @ SY192 ) ) @ ( relation_dom @ SY192 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[526]) ).

thf(588,plain,
    ! [SV24: $i] :
      ( ( ! [SY193: $i] :
            ( ~ ( relation @ SY193 )
            | ( subset @ ( relation_inverse_image @ SY193 @ SV24 ) @ ( relation_dom @ SY193 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[527]) ).

thf(589,plain,
    ! [SV25: $i] :
      ( ( ! [SY194: $i] :
            ~ ( ~ ( ( ( set_difference @ SV25 @ SY194 )
                   != empty_set )
                  | ( subset @ SV25 @ SY194 ) )
              | ~ ( ~ ( subset @ SV25 @ SY194 )
                  | ( ( set_difference @ SV25 @ SY194 )
                    = empty_set ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[528]) ).

thf(590,plain,
    ! [SV26: $i] :
      ( ( ! [SY195: $i,SY196: $i] :
            ( ~ ~ ( ~ ( subset @ SV26 @ SY195 )
                  | ~ ( disjoint @ SY195 @ SY196 ) )
            | ( disjoint @ SV26 @ SY196 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[529]) ).

thf(591,plain,
    ! [SV27: $i] :
      ( ( ! [SY197: $i,SY198: $i] :
            ( ~ ( relation_of2_as_subset @ SY198 @ SV27 @ SY197 )
            | ~ ( ~ ( subset @ ( relation_dom @ SY198 ) @ SV27 )
                | ~ ( subset @ ( relation_rng @ SY198 ) @ SY197 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[530]) ).

thf(592,plain,
    ! [SV28: $i] :
      ( ( ! [SY199: $i,SY200: $i] :
            ( ~ ( subset @ SV28 @ SY199 )
            | ( subset @ ( set_intersection2 @ SV28 @ SY200 ) @ ( set_intersection2 @ SY199 @ SY200 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[531]) ).

thf(593,plain,
    ! [SV29: $i] :
      ( ( ~ ( relation @ SV29 )
        | ! [SY201: $i] :
            ( ~ ( relation @ SY201 )
            | ~ ( ~ ( ~ ( subset @ SV29 @ SY201 )
                    | ! [SY202: $i,SY203: $i] :
                        ( ~ ( in @ ( ordered_pair @ SY202 @ SY203 ) @ SV29 )
                        | ( in @ ( ordered_pair @ SY202 @ SY203 ) @ SY201 ) ) )
                | ~ ( ~ ! [SY204: $i,SY205: $i] :
                          ( ~ ( in @ ( ordered_pair @ SY204 @ SY205 ) @ SV29 )
                          | ( in @ ( ordered_pair @ SY204 @ SY205 ) @ SY201 ) )
                    | ( subset @ SV29 @ SY201 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[532]) ).

thf(594,plain,
    ! [SV30: $i] :
      ( ( ! [SY206: $i] :
            ~ ( ~ ( ~ ( element @ SV30 @ ( powerset @ SY206 ) )
                  | ( subset @ SV30 @ SY206 ) )
              | ~ ( ~ ( subset @ SV30 @ SY206 )
                  | ( element @ SV30 @ ( powerset @ SY206 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[533]) ).

thf(595,plain,
    ! [SV31: $i] :
      ( ( ! [SY207: $i] :
            ~ ( ~ ( ~ ( subset @ SV31 @ SY207 )
                  | ! [SY208: $i] :
                      ( ~ ( in @ SY208 @ SV31 )
                      | ( in @ SY208 @ SY207 ) ) )
              | ~ ( ~ ! [SY209: $i] :
                        ( ~ ( in @ SY209 @ SV31 )
                        | ( in @ SY209 @ SY207 ) )
                  | ( subset @ SV31 @ SY207 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[534]) ).

thf(596,plain,
    ! [SV32: $i] :
      ( ( ! [SY210: $i] :
            ( ~ ( relation @ SY210 )
            | ( subset @ ( relation_rng_restriction @ SV32 @ SY210 ) @ SY210 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[535]) ).

thf(597,plain,
    ! [SV33: $i] :
      ( ( ! [SY211: $i] :
            ~ ( ~ ( ( ( set_difference @ SV33 @ SY211 )
                   != empty_set )
                  | ( subset @ SV33 @ SY211 ) )
              | ~ ( ~ ( subset @ SV33 @ SY211 )
                  | ( ( set_difference @ SV33 @ SY211 )
                    = empty_set ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[536]) ).

thf(598,plain,
    ! [SV34: $i] :
      ( ( ! [SY212: $i] :
            ( ~ ~ ( ~ ( ordinal @ SV34 )
                  | ~ ( ordinal @ SY212 ) )
            | ~ ( ~ ( ~ ( ordinal_subset @ SV34 @ SY212 )
                    | ( subset @ SV34 @ SY212 ) )
                | ~ ( ~ ( subset @ SV34 @ SY212 )
                    | ( ordinal_subset @ SV34 @ SY212 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[537]) ).

thf(599,plain,
    ! [SV35: $i] :
      ( ( ! [SY213: $i] :
            ~ ( ~ ( ~ ( subset @ SV35 @ ( singleton @ SY213 ) )
                  | ( SV35 = empty_set )
                  | ( SV35
                    = ( singleton @ SY213 ) ) )
              | ~ ( ~ ( ( SV35 = empty_set )
                      | ( SV35
                        = ( singleton @ SY213 ) ) )
                  | ( subset @ SV35 @ ( singleton @ SY213 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[538]) ).

thf(600,plain,
    ! [SV36: $i] :
      ( ( ! [SY214: $i,SY215: $i] :
            ( ~ ~ ( ~ ( subset @ SV36 @ SY214 )
                  | ~ ( subset @ SY214 @ SY215 ) )
            | ( subset @ SV36 @ SY215 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[539]) ).

thf(601,plain,
    ! [SV37: $i] :
      ( ( ! [SY216: $i,SY217: $i] :
            ( ~ ( subset @ SV37 @ SY216 )
            | ( subset @ ( set_difference @ SV37 @ SY217 ) @ ( set_difference @ SY216 @ SY217 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[540]) ).

thf(602,plain,
    ! [SV38: $i] :
      ( ( ! [SY218: $i] :
            ( ~ ( subset @ ( singleton @ SV38 ) @ ( singleton @ SY218 ) )
            | ( SV38 = SY218 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[541]) ).

thf(603,plain,
    ! [SV39: $i] :
      ( ( ~ ( relation @ SV39 )
        | ! [SY219: $i] :
            ( ~ ( relation @ SY219 )
            | ~ ( subset @ SV39 @ SY219 )
            | ~ ( ~ ( subset @ ( relation_dom @ SV39 ) @ ( relation_dom @ SY219 ) )
                | ~ ( subset @ ( relation_rng @ SV39 ) @ ( relation_rng @ SY219 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[542]) ).

thf(604,plain,
    ! [SV40: $i] :
      ( ( ! [SY220: $i] :
            ( ~ ( subset @ SV40 @ SY220 )
            | ( SY220
              = ( set_union2 @ SV40 @ ( set_difference @ SY220 @ SV40 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[543]) ).

thf(605,plain,
    ! [SV41: $i] :
      ( ( ~ ! [SY221: $i] :
              ~ ~ ( ~ ~ ( ~ ~ ( ~ ( in @ SV41 @ SY221 )
                              | ~ ! [SX2: $i,SX3: $i] :
                                    ( ~ ~ ( ~ ( in @ SX2 @ SY221 )
                                          | ~ ( subset @ SX3 @ SX2 ) )
                                    | ( in @ SX3 @ SY221 ) ) )
                        | ~ ! [SX2: $i] :
                              ~ ~ ( ~ ( in @ SX2 @ SY221 )
                                  | ~ ! [SX3: $i] :
                                        ~ ~ ( ~ ( in @ SX3 @ SY221 )
                                            | ~ ! [SX4: $i] :
                                                  ( ~ ( subset @ SX4 @ SX2 )
                                                  | ( in @ SX4 @ SX3 ) ) ) ) )
                  | ~ ! [SX2: $i] :
                        ~ ~ ( ~ ~ ( ~ ( subset @ SX2 @ SY221 )
                                  | ~ ~ ( are_equipotent @ SX2 @ SY221 ) )
                            | ~ ~ ( in @ SX2 @ SY221 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[544]) ).

thf(606,plain,
    ! [SV42: $i] :
      ( ( ! [SY228: $i] :
            ~ ( ~ ( ~ ( subset @ SV42 @ ( singleton @ SY228 ) )
                  | ( SV42 = empty_set )
                  | ( SV42
                    = ( singleton @ SY228 ) ) )
              | ~ ( ~ ( ( SV42 = empty_set )
                      | ( SV42
                        = ( singleton @ SY228 ) ) )
                  | ( subset @ SV42 @ ( singleton @ SY228 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[545]) ).

thf(607,plain,
    ! [SV43: $i] :
      ( ( ! [SY229: $i] :
            ~ ( ~ ( ~ ( proper_subset @ SV43 @ SY229 )
                  | ~ ( ~ ( subset @ SV43 @ SY229 )
                      | ~ ( ( SV43 != SY229 ) ) ) )
              | ~ ( ~ ~ ( ~ ( subset @ SV43 @ SY229 )
                        | ~ ( ( SV43 != SY229 ) ) )
                  | ( proper_subset @ SV43 @ SY229 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[546]) ).

thf(608,plain,
    ! [SV44: $i] :
      ( ( ! [SY230: $i] :
            ~ ( ~ ( ( SV44 != SY230 )
                  | ~ ( ~ ( subset @ SV44 @ SY230 )
                      | ~ ( subset @ SY230 @ SV44 ) ) )
              | ~ ( ~ ~ ( ~ ( subset @ SV44 @ SY230 )
                        | ~ ( subset @ SY230 @ SV44 ) )
                  | ( SV44 = SY230 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[547]) ).

thf(609,plain,
    ! [SV45: $i] :
      ( ( ! [SY231: $i,SY232: $i] :
            ( ~ ( relation @ SY232 )
            | ( subset @ ( fiber @ ( relation_restriction @ SY232 @ SV45 ) @ SY231 ) @ ( fiber @ SY232 @ SY231 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[548]) ).

thf(610,plain,
    ! [SV46: $i] :
      ( ( ! [SY233: $i,SY234: $i] :
            ( ~ ( relation @ SY234 )
            | ~ ( subset @ SV46 @ SY233 )
            | ( subset @ ( relation_inverse_image @ SY234 @ SV46 ) @ ( relation_inverse_image @ SY234 @ SY233 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[549]) ).

thf(611,plain,
    ! [SV47: $i] :
      ( ( ~ ( subset @ SV47 @ empty_set )
        | ( SV47 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[550]) ).

thf(612,plain,
    ! [SV48: $i] :
      ( ( ! [SY235: $i] :
            ( ~ ( relation @ SY235 )
            | ( subset @ ( relation_rng @ ( relation_rng_restriction @ SV48 @ SY235 ) ) @ ( relation_rng @ SY235 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[551]) ).

thf(613,plain,
    ! [SV49: $i] :
      ( ( ~ ( relation @ SV49 )
        | ! [SY236: $i] :
            ( ~ ( relation @ SY236 )
            | ( subset @ ( relation_rng @ ( relation_composition @ SV49 @ SY236 ) ) @ ( relation_rng @ SY236 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[552]) ).

thf(614,plain,
    ! [SV50: $i] :
      ( ( ! [SY237: $i,SY238: $i] :
            ( ~ ( relation_of2_as_subset @ SY238 @ SV50 @ SY237 )
            | ( element @ SY238 @ ( powerset @ ( cartesian_product2 @ SV50 @ SY237 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[553]) ).

thf(615,plain,
    ! [SV51: $i] :
      ( ( ! [SY239: $i,SY240: $i,SY241: $i] :
            ( ~ ~ ( ~ ( subset @ SV51 @ SY239 )
                  | ~ ( subset @ SY240 @ SY241 ) )
            | ( subset @ ( cartesian_product2 @ SV51 @ SY240 ) @ ( cartesian_product2 @ SY239 @ SY241 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[554]) ).

thf(616,plain,
    ! [SV52: $i] :
      ( ( ! [SY242: $i] :
            ( ~ ( relation @ SY242 )
            | ( subset @ ( relation_rng @ ( relation_rng_restriction @ SV52 @ SY242 ) ) @ SV52 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[555]) ).

thf(617,plain,
    ! [SV53: $i] :
      ( ( ! [SY243: $i,SY244: $i] :
            ( ~ ( subset @ SV53 @ SY243 )
            | ~ ( ~ ( subset @ ( cartesian_product2 @ SV53 @ SY244 ) @ ( cartesian_product2 @ SY243 @ SY244 ) )
                | ~ ( subset @ ( cartesian_product2 @ SY244 @ SV53 ) @ ( cartesian_product2 @ SY244 @ SY243 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[556]) ).

thf(618,plain,
    ! [SV54: $i] :
      ( ( ! [SY245: $i] :
            ( ~ ( subset @ SV54 @ SY245 )
            | ( ( set_intersection2 @ SV54 @ SY245 )
              = SV54 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[557]) ).

thf(619,plain,
    ! [SV55: $i] :
      ( ( ~ ! [SY246: $i] :
              ~ ~ ( ~ ~ ( ~ ~ ( ~ ( in @ SV55 @ SY246 )
                              | ~ ! [SX2: $i,SX3: $i] :
                                    ( ~ ~ ( ~ ( in @ SX2 @ SY246 )
                                          | ~ ( subset @ SX3 @ SX2 ) )
                                    | ( in @ SX3 @ SY246 ) ) )
                        | ~ ! [SX2: $i] :
                              ( ~ ( in @ SX2 @ SY246 )
                              | ( in @ ( powerset @ SX2 ) @ SY246 ) ) )
                  | ~ ! [SX2: $i] :
                        ~ ~ ( ~ ~ ( ~ ( subset @ SX2 @ SY246 )
                                  | ~ ~ ( are_equipotent @ SX2 @ SY246 ) )
                            | ~ ~ ( in @ SX2 @ SY246 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[558]) ).

thf(620,plain,
    ! [SV56: $i] :
      ( ( ! [SY251: $i] :
            ( ~ ( in @ SV56 @ SY251 )
            | ( subset @ SV56 @ ( union @ SY251 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[559]) ).

thf(621,plain,
    ! [SV57: $i] :
      ( ( ! [SY252: $i] :
            ~ ( ~ ( ~ ( subset @ ( singleton @ SV57 ) @ SY252 )
                  | ( in @ SV57 @ SY252 ) )
              | ~ ( ~ ( in @ SV57 @ SY252 )
                  | ( subset @ ( singleton @ SV57 ) @ SY252 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[560]) ).

thf(622,plain,
    ! [SV58: $i] :
      ( ( ! [SY253: $i,SY254: $i,SY255: $i] :
            ( ~ ( relation_of2_as_subset @ SY255 @ SY254 @ SV58 )
            | ~ ( subset @ ( relation_rng @ SY255 ) @ SY253 )
            | ( relation_of2_as_subset @ SY255 @ SY254 @ SY253 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[561]) ).

thf(623,plain,
    ! [SV59: $i] :
      ( ( ~ ( relation @ SV59 )
        | ! [SY256: $i] :
            ( ~ ( relation @ SY256 )
            | ( subset @ ( relation_dom @ ( relation_composition @ SV59 @ SY256 ) ) @ ( relation_dom @ SV59 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[562]) ).

thf(624,plain,
    ! [SV60: $i] :
      ( ( ! [SY257: $i,SY258: $i] :
            ( ~ ( subset @ SV60 @ SY257 )
            | ( in @ SY258 @ SV60 )
            | ( subset @ SV60 @ ( set_difference @ SY257 @ ( singleton @ SY258 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[563]) ).

thf(625,plain,
    ! [SV61: $i,SV1: $i] :
      ( ( subset @ ( set_intersection2 @ SV1 @ SV61 ) @ SV1 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[564]) ).

thf(626,plain,
    ! [SV62: $i,SV3: $i] :
      ( ( subset @ ( set_difference @ SV3 @ SV62 ) @ SV3 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[566]) ).

thf(627,plain,
    ! [SV63: $i,SV4: $i] :
      ( ( subset @ SV4 @ ( set_union2 @ SV4 @ SV63 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[567]) ).

thf(628,plain,
    ! [SV5: $i] :
      ( ( subset @ SV5 @ SV5 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[568]) ).

thf(629,plain,
    ! [SV6: $i] :
      ( ( ( ~ ! [SY166: $i] :
                ( ~ ( in @ SY166 @ SV6 )
                | ~ ( ~ ( ordinal @ SY166 )
                    | ~ ( subset @ SY166 @ SV6 ) ) ) )
        = $true )
      | ( ( ordinal @ SV6 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[570]) ).

thf(630,plain,
    ! [SV7: $i,SV65: $i] :
      ( ( ~ ( relation @ SV65 )
        | ( subset @ ( relation_rng @ ( relation_dom_restriction @ SV65 @ SV7 ) ) @ ( relation_rng @ SV65 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[571]) ).

thf(631,plain,
    ! [SV66: $i,SV8: $i] :
      ( ( ~ ( ~ ( ~ ( subset @ ( singleton @ SV8 ) @ SV66 )
                | ( in @ SV8 @ SV66 ) )
            | ~ ( ~ ( in @ SV8 @ SV66 )
                | ( subset @ ( singleton @ SV8 ) @ SV66 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[572]) ).

thf(632,plain,
    ! [SV67: $i,SV9: $i] :
      ( ( ~ ~ ( ~ ( subset @ SV9 @ SV67 )
              | ~ ( proper_subset @ SV67 @ SV9 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[573]) ).

thf(633,plain,
    ! [SV68: $i,SV10: $i] :
      ( ( ~ ( in @ SV10 @ SV68 )
        | ( subset @ SV10 @ ( union @ SV68 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[574]) ).

thf(634,plain,
    ! [SV69: $i,SV11: $i] :
      ( ( ! [SY259: $i] :
            ~ ( ~ ( ~ ( relation_of2 @ SY259 @ SV11 @ SV69 )
                  | ( subset @ SY259 @ ( cartesian_product2 @ SV11 @ SV69 ) ) )
              | ~ ( ~ ( subset @ SY259 @ ( cartesian_product2 @ SV11 @ SV69 ) )
                  | ( relation_of2 @ SY259 @ SV11 @ SV69 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[575]) ).

thf(635,plain,
    ! [SV12: $i,SV70: $i] :
      ( ( ~ ( ~ ( ( SV70
                 != ( powerset @ SV12 ) )
                | ! [SY260: $i] :
                    ~ ( ~ ( ~ ( in @ SY260 @ SV70 )
                          | ( subset @ SY260 @ SV12 ) )
                      | ~ ( ~ ( subset @ SY260 @ SV12 )
                          | ( in @ SY260 @ SV70 ) ) ) )
            | ~ ( ~ ! [SY261: $i] :
                      ~ ( ~ ( ~ ( in @ SY261 @ SV70 )
                            | ( subset @ SY261 @ SV12 ) )
                        | ~ ( ~ ( subset @ SY261 @ SV12 )
                            | ( in @ SY261 @ SV70 ) ) )
                | ( SV70
                  = ( powerset @ SV12 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[576]) ).

thf(636,plain,
    ! [SV71: $i,SV13: $i] :
      ( ( ! [SY262: $i] :
            ( ~ ~ ( ~ ( subset @ SV13 @ SV71 )
                  | ~ ( subset @ SY262 @ SV71 ) )
            | ( subset @ ( set_union2 @ SV13 @ SY262 ) @ SV71 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[577]) ).

thf(637,plain,
    ! [SV14: $i,SV72: $i] :
      ( ( ~ ( relation @ SV72 )
        | ( subset @ ( relation_image @ SV72 @ SV14 ) @ ( relation_rng @ SV72 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[578]) ).

thf(638,plain,
    ! [SV15: $i,SV73: $i] :
      ( ( ~ ( relation @ SV73 )
        | ( subset @ ( relation_dom_restriction @ SV73 @ SV15 ) @ SV73 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[579]) ).

thf(639,plain,
    ! [SV16: $i,SV74: $i] :
      ( ( ~ ( relation @ SV74 )
        | ~ ( ~ ( subset @ ( relation_field @ ( relation_restriction @ SV74 @ SV16 ) ) @ ( relation_field @ SV74 ) )
            | ~ ( subset @ ( relation_field @ ( relation_restriction @ SV74 @ SV16 ) ) @ SV16 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[580]) ).

thf(640,plain,
    ! [SV75: $i,SV17: $i] :
      ( ( ~ ! [SY263: $i] :
              ~ ( relation_of2_as_subset @ SY263 @ SV17 @ SV75 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[581]) ).

thf(641,plain,
    ! [SV18: $i] :
      ( ( ~ ( ~ ( epsilon_transitive @ SV18 )
            | ! [SY183: $i] :
                ( ~ ( in @ SY183 @ SV18 )
                | ( subset @ SY183 @ SV18 ) ) )
        | ~ ( ~ ! [SY184: $i] :
                  ( ~ ( in @ SY184 @ SV18 )
                  | ( subset @ SY184 @ SV18 ) )
            | ( epsilon_transitive @ SV18 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[582]) ).

thf(642,plain,
    ! [SV76: $i,SV19: $i] :
      ( ( ! [SY264: $i] :
            ( ~ ~ ( ~ ( subset @ SV19 @ SV76 )
                  | ~ ( subset @ SV19 @ SY264 ) )
            | ( subset @ SV19 @ ( set_intersection2 @ SV76 @ SY264 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[583]) ).

thf(643,plain,
    ! [SV77: $i,SV20: $i] :
      ( ( ~ ( subset @ SV20 @ SV77 )
        | ( ( set_union2 @ SV20 @ SV77 )
          = SV77 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[584]) ).

thf(644,plain,
    ! [SV78: $i,SV21: $i] :
      ( ( ! [SY265: $i] :
            ~ ( ~ ( ~ ( relation_of2_as_subset @ SY265 @ SV21 @ SV78 )
                  | ( relation_of2 @ SY265 @ SV21 @ SV78 ) )
              | ~ ( ~ ( relation_of2 @ SY265 @ SV21 @ SV78 )
                  | ( relation_of2_as_subset @ SY265 @ SV21 @ SV78 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[585]) ).

thf(645,plain,
    ! [SV79: $i,SV22: $i] :
      ( ( ! [SY266: $i] :
            ~ ( ~ ( ~ ( subset @ ( unordered_pair @ SV22 @ SV79 ) @ SY266 )
                  | ~ ( ~ ( in @ SV22 @ SY266 )
                      | ~ ( in @ SV79 @ SY266 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SV22 @ SY266 )
                        | ~ ( in @ SV79 @ SY266 ) )
                  | ( subset @ ( unordered_pair @ SV22 @ SV79 ) @ SY266 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[586]) ).

thf(646,plain,
    ! [SV23: $i,SV80: $i] :
      ( ( ~ ( relation @ SV80 )
        | ( subset @ ( relation_dom @ ( relation_rng_restriction @ SV23 @ SV80 ) ) @ ( relation_dom @ SV80 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[587]) ).

thf(647,plain,
    ! [SV24: $i,SV81: $i] :
      ( ( ~ ( relation @ SV81 )
        | ( subset @ ( relation_inverse_image @ SV81 @ SV24 ) @ ( relation_dom @ SV81 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[588]) ).

thf(648,plain,
    ! [SV82: $i,SV25: $i] :
      ( ( ~ ( ~ ( ( ( set_difference @ SV25 @ SV82 )
                 != empty_set )
                | ( subset @ SV25 @ SV82 ) )
            | ~ ( ~ ( subset @ SV25 @ SV82 )
                | ( ( set_difference @ SV25 @ SV82 )
                  = empty_set ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[589]) ).

thf(649,plain,
    ! [SV83: $i,SV26: $i] :
      ( ( ! [SY267: $i] :
            ( ~ ~ ( ~ ( subset @ SV26 @ SV83 )
                  | ~ ( disjoint @ SV83 @ SY267 ) )
            | ( disjoint @ SV26 @ SY267 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[590]) ).

thf(650,plain,
    ! [SV84: $i,SV27: $i] :
      ( ( ! [SY268: $i] :
            ( ~ ( relation_of2_as_subset @ SY268 @ SV27 @ SV84 )
            | ~ ( ~ ( subset @ ( relation_dom @ SY268 ) @ SV27 )
                | ~ ( subset @ ( relation_rng @ SY268 ) @ SV84 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[591]) ).

thf(651,plain,
    ! [SV85: $i,SV28: $i] :
      ( ( ! [SY269: $i] :
            ( ~ ( subset @ SV28 @ SV85 )
            | ( subset @ ( set_intersection2 @ SV28 @ SY269 ) @ ( set_intersection2 @ SV85 @ SY269 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[592]) ).

thf(652,plain,
    ! [SV29: $i] :
      ( ( ( ~ ( relation @ SV29 ) )
        = $true )
      | ( ( ! [SY201: $i] :
              ( ~ ( relation @ SY201 )
              | ~ ( ~ ( ~ ( subset @ SV29 @ SY201 )
                      | ! [SY202: $i,SY203: $i] :
                          ( ~ ( in @ ( ordered_pair @ SY202 @ SY203 ) @ SV29 )
                          | ( in @ ( ordered_pair @ SY202 @ SY203 ) @ SY201 ) ) )
                  | ~ ( ~ ! [SY204: $i,SY205: $i] :
                            ( ~ ( in @ ( ordered_pair @ SY204 @ SY205 ) @ SV29 )
                            | ( in @ ( ordered_pair @ SY204 @ SY205 ) @ SY201 ) )
                      | ( subset @ SV29 @ SY201 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[593]) ).

thf(653,plain,
    ! [SV86: $i,SV30: $i] :
      ( ( ~ ( ~ ( ~ ( element @ SV30 @ ( powerset @ SV86 ) )
                | ( subset @ SV30 @ SV86 ) )
            | ~ ( ~ ( subset @ SV30 @ SV86 )
                | ( element @ SV30 @ ( powerset @ SV86 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[594]) ).

thf(654,plain,
    ! [SV87: $i,SV31: $i] :
      ( ( ~ ( ~ ( ~ ( subset @ SV31 @ SV87 )
                | ! [SY270: $i] :
                    ( ~ ( in @ SY270 @ SV31 )
                    | ( in @ SY270 @ SV87 ) ) )
            | ~ ( ~ ! [SY271: $i] :
                      ( ~ ( in @ SY271 @ SV31 )
                      | ( in @ SY271 @ SV87 ) )
                | ( subset @ SV31 @ SV87 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[595]) ).

thf(655,plain,
    ! [SV32: $i,SV88: $i] :
      ( ( ~ ( relation @ SV88 )
        | ( subset @ ( relation_rng_restriction @ SV32 @ SV88 ) @ SV88 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[596]) ).

thf(656,plain,
    ! [SV89: $i,SV33: $i] :
      ( ( ~ ( ~ ( ( ( set_difference @ SV33 @ SV89 )
                 != empty_set )
                | ( subset @ SV33 @ SV89 ) )
            | ~ ( ~ ( subset @ SV33 @ SV89 )
                | ( ( set_difference @ SV33 @ SV89 )
                  = empty_set ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[597]) ).

thf(657,plain,
    ! [SV90: $i,SV34: $i] :
      ( ( ~ ~ ( ~ ( ordinal @ SV34 )
              | ~ ( ordinal @ SV90 ) )
        | ~ ( ~ ( ~ ( ordinal_subset @ SV34 @ SV90 )
                | ( subset @ SV34 @ SV90 ) )
            | ~ ( ~ ( subset @ SV34 @ SV90 )
                | ( ordinal_subset @ SV34 @ SV90 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[598]) ).

thf(658,plain,
    ! [SV91: $i,SV35: $i] :
      ( ( ~ ( ~ ( ~ ( subset @ SV35 @ ( singleton @ SV91 ) )
                | ( SV35 = empty_set )
                | ( SV35
                  = ( singleton @ SV91 ) ) )
            | ~ ( ~ ( ( SV35 = empty_set )
                    | ( SV35
                      = ( singleton @ SV91 ) ) )
                | ( subset @ SV35 @ ( singleton @ SV91 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[599]) ).

thf(659,plain,
    ! [SV92: $i,SV36: $i] :
      ( ( ! [SY272: $i] :
            ( ~ ~ ( ~ ( subset @ SV36 @ SV92 )
                  | ~ ( subset @ SV92 @ SY272 ) )
            | ( subset @ SV36 @ SY272 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[600]) ).

thf(660,plain,
    ! [SV93: $i,SV37: $i] :
      ( ( ! [SY273: $i] :
            ( ~ ( subset @ SV37 @ SV93 )
            | ( subset @ ( set_difference @ SV37 @ SY273 ) @ ( set_difference @ SV93 @ SY273 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[601]) ).

thf(661,plain,
    ! [SV94: $i,SV38: $i] :
      ( ( ~ ( subset @ ( singleton @ SV38 ) @ ( singleton @ SV94 ) )
        | ( SV38 = SV94 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[602]) ).

thf(662,plain,
    ! [SV39: $i] :
      ( ( ( ~ ( relation @ SV39 ) )
        = $true )
      | ( ( ! [SY219: $i] :
              ( ~ ( relation @ SY219 )
              | ~ ( subset @ SV39 @ SY219 )
              | ~ ( ~ ( subset @ ( relation_dom @ SV39 ) @ ( relation_dom @ SY219 ) )
                  | ~ ( subset @ ( relation_rng @ SV39 ) @ ( relation_rng @ SY219 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[603]) ).

thf(663,plain,
    ! [SV95: $i,SV40: $i] :
      ( ( ~ ( subset @ SV40 @ SV95 )
        | ( SV95
          = ( set_union2 @ SV40 @ ( set_difference @ SV95 @ SV40 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[604]) ).

thf(664,plain,
    ! [SV41: $i] :
      ( ( ! [SY221: $i] :
            ~ ~ ( ~ ~ ( ~ ~ ( ~ ( in @ SV41 @ SY221 )
                            | ~ ! [SX2: $i,SX3: $i] :
                                  ( ~ ~ ( ~ ( in @ SX2 @ SY221 )
                                        | ~ ( subset @ SX3 @ SX2 ) )
                                  | ( in @ SX3 @ SY221 ) ) )
                      | ~ ! [SX2: $i] :
                            ~ ~ ( ~ ( in @ SX2 @ SY221 )
                                | ~ ! [SX3: $i] :
                                      ~ ~ ( ~ ( in @ SX3 @ SY221 )
                                          | ~ ! [SX4: $i] :
                                                ( ~ ( subset @ SX4 @ SX2 )
                                                | ( in @ SX4 @ SX3 ) ) ) ) )
                | ~ ! [SX2: $i] :
                      ~ ~ ( ~ ~ ( ~ ( subset @ SX2 @ SY221 )
                                | ~ ~ ( are_equipotent @ SX2 @ SY221 ) )
                          | ~ ~ ( in @ SX2 @ SY221 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[605]) ).

thf(665,plain,
    ! [SV96: $i,SV42: $i] :
      ( ( ~ ( ~ ( ~ ( subset @ SV42 @ ( singleton @ SV96 ) )
                | ( SV42 = empty_set )
                | ( SV42
                  = ( singleton @ SV96 ) ) )
            | ~ ( ~ ( ( SV42 = empty_set )
                    | ( SV42
                      = ( singleton @ SV96 ) ) )
                | ( subset @ SV42 @ ( singleton @ SV96 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[606]) ).

thf(666,plain,
    ! [SV97: $i,SV43: $i] :
      ( ( ~ ( ~ ( ~ ( proper_subset @ SV43 @ SV97 )
                | ~ ( ~ ( subset @ SV43 @ SV97 )
                    | ~ ( ( SV43 != SV97 ) ) ) )
            | ~ ( ~ ~ ( ~ ( subset @ SV43 @ SV97 )
                      | ~ ( ( SV43 != SV97 ) ) )
                | ( proper_subset @ SV43 @ SV97 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[607]) ).

thf(667,plain,
    ! [SV98: $i,SV44: $i] :
      ( ( ~ ( ~ ( ( SV44 != SV98 )
                | ~ ( ~ ( subset @ SV44 @ SV98 )
                    | ~ ( subset @ SV98 @ SV44 ) ) )
            | ~ ( ~ ~ ( ~ ( subset @ SV44 @ SV98 )
                      | ~ ( subset @ SV98 @ SV44 ) )
                | ( SV44 = SV98 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[608]) ).

thf(668,plain,
    ! [SV99: $i,SV45: $i] :
      ( ( ! [SY274: $i] :
            ( ~ ( relation @ SY274 )
            | ( subset @ ( fiber @ ( relation_restriction @ SY274 @ SV45 ) @ SV99 ) @ ( fiber @ SY274 @ SV99 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[609]) ).

thf(669,plain,
    ! [SV100: $i,SV46: $i] :
      ( ( ! [SY275: $i] :
            ( ~ ( relation @ SY275 )
            | ~ ( subset @ SV46 @ SV100 )
            | ( subset @ ( relation_inverse_image @ SY275 @ SV46 ) @ ( relation_inverse_image @ SY275 @ SV100 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[610]) ).

thf(670,plain,
    ! [SV47: $i] :
      ( ( ( ~ ( subset @ SV47 @ empty_set ) )
        = $true )
      | ( ( SV47 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[611]) ).

thf(671,plain,
    ! [SV48: $i,SV101: $i] :
      ( ( ~ ( relation @ SV101 )
        | ( subset @ ( relation_rng @ ( relation_rng_restriction @ SV48 @ SV101 ) ) @ ( relation_rng @ SV101 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[612]) ).

thf(672,plain,
    ! [SV49: $i] :
      ( ( ( ~ ( relation @ SV49 ) )
        = $true )
      | ( ( ! [SY236: $i] :
              ( ~ ( relation @ SY236 )
              | ( subset @ ( relation_rng @ ( relation_composition @ SV49 @ SY236 ) ) @ ( relation_rng @ SY236 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[613]) ).

thf(673,plain,
    ! [SV102: $i,SV50: $i] :
      ( ( ! [SY276: $i] :
            ( ~ ( relation_of2_as_subset @ SY276 @ SV50 @ SV102 )
            | ( element @ SY276 @ ( powerset @ ( cartesian_product2 @ SV50 @ SV102 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[614]) ).

thf(674,plain,
    ! [SV103: $i,SV51: $i] :
      ( ( ! [SY277: $i,SY278: $i] :
            ( ~ ~ ( ~ ( subset @ SV51 @ SV103 )
                  | ~ ( subset @ SY277 @ SY278 ) )
            | ( subset @ ( cartesian_product2 @ SV51 @ SY277 ) @ ( cartesian_product2 @ SV103 @ SY278 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[615]) ).

thf(675,plain,
    ! [SV52: $i,SV104: $i] :
      ( ( ~ ( relation @ SV104 )
        | ( subset @ ( relation_rng @ ( relation_rng_restriction @ SV52 @ SV104 ) ) @ SV52 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[616]) ).

thf(676,plain,
    ! [SV105: $i,SV53: $i] :
      ( ( ! [SY279: $i] :
            ( ~ ( subset @ SV53 @ SV105 )
            | ~ ( ~ ( subset @ ( cartesian_product2 @ SV53 @ SY279 ) @ ( cartesian_product2 @ SV105 @ SY279 ) )
                | ~ ( subset @ ( cartesian_product2 @ SY279 @ SV53 ) @ ( cartesian_product2 @ SY279 @ SV105 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[617]) ).

thf(677,plain,
    ! [SV106: $i,SV54: $i] :
      ( ( ~ ( subset @ SV54 @ SV106 )
        | ( ( set_intersection2 @ SV54 @ SV106 )
          = SV54 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[618]) ).

thf(678,plain,
    ! [SV55: $i] :
      ( ( ! [SY246: $i] :
            ~ ~ ( ~ ~ ( ~ ~ ( ~ ( in @ SV55 @ SY246 )
                            | ~ ! [SX2: $i,SX3: $i] :
                                  ( ~ ~ ( ~ ( in @ SX2 @ SY246 )
                                        | ~ ( subset @ SX3 @ SX2 ) )
                                  | ( in @ SX3 @ SY246 ) ) )
                      | ~ ! [SX2: $i] :
                            ( ~ ( in @ SX2 @ SY246 )
                            | ( in @ ( powerset @ SX2 ) @ SY246 ) ) )
                | ~ ! [SX2: $i] :
                      ~ ~ ( ~ ~ ( ~ ( subset @ SX2 @ SY246 )
                                | ~ ~ ( are_equipotent @ SX2 @ SY246 ) )
                          | ~ ~ ( in @ SX2 @ SY246 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[619]) ).

thf(679,plain,
    ! [SV107: $i,SV56: $i] :
      ( ( ~ ( in @ SV56 @ SV107 )
        | ( subset @ SV56 @ ( union @ SV107 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[620]) ).

thf(680,plain,
    ! [SV108: $i,SV57: $i] :
      ( ( ~ ( ~ ( ~ ( subset @ ( singleton @ SV57 ) @ SV108 )
                | ( in @ SV57 @ SV108 ) )
            | ~ ( ~ ( in @ SV57 @ SV108 )
                | ( subset @ ( singleton @ SV57 ) @ SV108 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[621]) ).

thf(681,plain,
    ! [SV109: $i,SV58: $i] :
      ( ( ! [SY280: $i,SY281: $i] :
            ( ~ ( relation_of2_as_subset @ SY281 @ SY280 @ SV58 )
            | ~ ( subset @ ( relation_rng @ SY281 ) @ SV109 )
            | ( relation_of2_as_subset @ SY281 @ SY280 @ SV109 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[622]) ).

thf(682,plain,
    ! [SV59: $i] :
      ( ( ( ~ ( relation @ SV59 ) )
        = $true )
      | ( ( ! [SY256: $i] :
              ( ~ ( relation @ SY256 )
              | ( subset @ ( relation_dom @ ( relation_composition @ SV59 @ SY256 ) ) @ ( relation_dom @ SV59 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[623]) ).

thf(683,plain,
    ! [SV110: $i,SV60: $i] :
      ( ( ! [SY282: $i] :
            ( ~ ( subset @ SV60 @ SV110 )
            | ( in @ SY282 @ SV60 )
            | ( subset @ SV60 @ ( set_difference @ SV110 @ ( singleton @ SY282 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[624]) ).

thf(684,plain,
    ! [SV6: $i] :
      ( ( ( ! [SY166: $i] :
              ( ~ ( in @ SY166 @ SV6 )
              | ~ ( ~ ( ordinal @ SY166 )
                  | ~ ( subset @ SY166 @ SV6 ) ) ) )
        = $false )
      | ( ( ordinal @ SV6 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[629]) ).

thf(685,plain,
    ! [SV7: $i,SV65: $i] :
      ( ( ( ~ ( relation @ SV65 ) )
        = $true )
      | ( ( subset @ ( relation_rng @ ( relation_dom_restriction @ SV65 @ SV7 ) ) @ ( relation_rng @ SV65 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[630]) ).

thf(686,plain,
    ! [SV66: $i,SV8: $i] :
      ( ( ~ ( ~ ( subset @ ( singleton @ SV8 ) @ SV66 )
            | ( in @ SV8 @ SV66 ) )
        | ~ ( ~ ( in @ SV8 @ SV66 )
            | ( subset @ ( singleton @ SV8 ) @ SV66 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[631]) ).

thf(687,plain,
    ! [SV67: $i,SV9: $i] :
      ( ( ~ ( ~ ( subset @ SV9 @ SV67 )
            | ~ ( proper_subset @ SV67 @ SV9 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[632]) ).

thf(688,plain,
    ! [SV68: $i,SV10: $i] :
      ( ( ( ~ ( in @ SV10 @ SV68 ) )
        = $true )
      | ( ( subset @ SV10 @ ( union @ SV68 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[633]) ).

thf(689,plain,
    ! [SV69: $i,SV11: $i,SV111: $i] :
      ( ( ~ ( ~ ( ~ ( relation_of2 @ SV111 @ SV11 @ SV69 )
                | ( subset @ SV111 @ ( cartesian_product2 @ SV11 @ SV69 ) ) )
            | ~ ( ~ ( subset @ SV111 @ ( cartesian_product2 @ SV11 @ SV69 ) )
                | ( relation_of2 @ SV111 @ SV11 @ SV69 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[634]) ).

thf(690,plain,
    ! [SV12: $i,SV70: $i] :
      ( ( ~ ( ( SV70
             != ( powerset @ SV12 ) )
            | ! [SY260: $i] :
                ~ ( ~ ( ~ ( in @ SY260 @ SV70 )
                      | ( subset @ SY260 @ SV12 ) )
                  | ~ ( ~ ( subset @ SY260 @ SV12 )
                      | ( in @ SY260 @ SV70 ) ) ) )
        | ~ ( ~ ! [SY261: $i] :
                  ~ ( ~ ( ~ ( in @ SY261 @ SV70 )
                        | ( subset @ SY261 @ SV12 ) )
                    | ~ ( ~ ( subset @ SY261 @ SV12 )
                        | ( in @ SY261 @ SV70 ) ) )
            | ( SV70
              = ( powerset @ SV12 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[635]) ).

thf(691,plain,
    ! [SV112: $i,SV71: $i,SV13: $i] :
      ( ( ~ ~ ( ~ ( subset @ SV13 @ SV71 )
              | ~ ( subset @ SV112 @ SV71 ) )
        | ( subset @ ( set_union2 @ SV13 @ SV112 ) @ SV71 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[636]) ).

thf(692,plain,
    ! [SV14: $i,SV72: $i] :
      ( ( ( ~ ( relation @ SV72 ) )
        = $true )
      | ( ( subset @ ( relation_image @ SV72 @ SV14 ) @ ( relation_rng @ SV72 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[637]) ).

thf(693,plain,
    ! [SV15: $i,SV73: $i] :
      ( ( ( ~ ( relation @ SV73 ) )
        = $true )
      | ( ( subset @ ( relation_dom_restriction @ SV73 @ SV15 ) @ SV73 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[638]) ).

thf(694,plain,
    ! [SV16: $i,SV74: $i] :
      ( ( ( ~ ( relation @ SV74 ) )
        = $true )
      | ( ( ~ ( ~ ( subset @ ( relation_field @ ( relation_restriction @ SV74 @ SV16 ) ) @ ( relation_field @ SV74 ) )
              | ~ ( subset @ ( relation_field @ ( relation_restriction @ SV74 @ SV16 ) ) @ SV16 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[639]) ).

thf(695,plain,
    ! [SV75: $i,SV17: $i] :
      ( ( ! [SY263: $i] :
            ~ ( relation_of2_as_subset @ SY263 @ SV17 @ SV75 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[640]) ).

thf(696,plain,
    ! [SV18: $i] :
      ( ( ~ ( ~ ( epsilon_transitive @ SV18 )
            | ! [SY183: $i] :
                ( ~ ( in @ SY183 @ SV18 )
                | ( subset @ SY183 @ SV18 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[641]) ).

thf(697,plain,
    ! [SV18: $i] :
      ( ( ~ ( ~ ! [SY184: $i] :
                  ( ~ ( in @ SY184 @ SV18 )
                  | ( subset @ SY184 @ SV18 ) )
            | ( epsilon_transitive @ SV18 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[641]) ).

thf(698,plain,
    ! [SV113: $i,SV76: $i,SV19: $i] :
      ( ( ~ ~ ( ~ ( subset @ SV19 @ SV76 )
              | ~ ( subset @ SV19 @ SV113 ) )
        | ( subset @ SV19 @ ( set_intersection2 @ SV76 @ SV113 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[642]) ).

thf(699,plain,
    ! [SV77: $i,SV20: $i] :
      ( ( ( ~ ( subset @ SV20 @ SV77 ) )
        = $true )
      | ( ( ( set_union2 @ SV20 @ SV77 )
          = SV77 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[643]) ).

thf(700,plain,
    ! [SV78: $i,SV21: $i,SV114: $i] :
      ( ( ~ ( ~ ( ~ ( relation_of2_as_subset @ SV114 @ SV21 @ SV78 )
                | ( relation_of2 @ SV114 @ SV21 @ SV78 ) )
            | ~ ( ~ ( relation_of2 @ SV114 @ SV21 @ SV78 )
                | ( relation_of2_as_subset @ SV114 @ SV21 @ SV78 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[644]) ).

thf(701,plain,
    ! [SV115: $i,SV79: $i,SV22: $i] :
      ( ( ~ ( ~ ( ~ ( subset @ ( unordered_pair @ SV22 @ SV79 ) @ SV115 )
                | ~ ( ~ ( in @ SV22 @ SV115 )
                    | ~ ( in @ SV79 @ SV115 ) ) )
            | ~ ( ~ ~ ( ~ ( in @ SV22 @ SV115 )
                      | ~ ( in @ SV79 @ SV115 ) )
                | ( subset @ ( unordered_pair @ SV22 @ SV79 ) @ SV115 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[645]) ).

thf(702,plain,
    ! [SV23: $i,SV80: $i] :
      ( ( ( ~ ( relation @ SV80 ) )
        = $true )
      | ( ( subset @ ( relation_dom @ ( relation_rng_restriction @ SV23 @ SV80 ) ) @ ( relation_dom @ SV80 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[646]) ).

thf(703,plain,
    ! [SV24: $i,SV81: $i] :
      ( ( ( ~ ( relation @ SV81 ) )
        = $true )
      | ( ( subset @ ( relation_inverse_image @ SV81 @ SV24 ) @ ( relation_dom @ SV81 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[647]) ).

thf(704,plain,
    ! [SV82: $i,SV25: $i] :
      ( ( ~ ( ( ( set_difference @ SV25 @ SV82 )
             != empty_set )
            | ( subset @ SV25 @ SV82 ) )
        | ~ ( ~ ( subset @ SV25 @ SV82 )
            | ( ( set_difference @ SV25 @ SV82 )
              = empty_set ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[648]) ).

thf(705,plain,
    ! [SV116: $i,SV83: $i,SV26: $i] :
      ( ( ~ ~ ( ~ ( subset @ SV26 @ SV83 )
              | ~ ( disjoint @ SV83 @ SV116 ) )
        | ( disjoint @ SV26 @ SV116 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[649]) ).

thf(706,plain,
    ! [SV84: $i,SV27: $i,SV117: $i] :
      ( ( ~ ( relation_of2_as_subset @ SV117 @ SV27 @ SV84 )
        | ~ ( ~ ( subset @ ( relation_dom @ SV117 ) @ SV27 )
            | ~ ( subset @ ( relation_rng @ SV117 ) @ SV84 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[650]) ).

thf(707,plain,
    ! [SV118: $i,SV85: $i,SV28: $i] :
      ( ( ~ ( subset @ SV28 @ SV85 )
        | ( subset @ ( set_intersection2 @ SV28 @ SV118 ) @ ( set_intersection2 @ SV85 @ SV118 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[651]) ).

thf(708,plain,
    ! [SV29: $i] :
      ( ( ( relation @ SV29 )
        = $false )
      | ( ( ! [SY201: $i] :
              ( ~ ( relation @ SY201 )
              | ~ ( ~ ( ~ ( subset @ SV29 @ SY201 )
                      | ! [SY202: $i,SY203: $i] :
                          ( ~ ( in @ ( ordered_pair @ SY202 @ SY203 ) @ SV29 )
                          | ( in @ ( ordered_pair @ SY202 @ SY203 ) @ SY201 ) ) )
                  | ~ ( ~ ! [SY204: $i,SY205: $i] :
                            ( ~ ( in @ ( ordered_pair @ SY204 @ SY205 ) @ SV29 )
                            | ( in @ ( ordered_pair @ SY204 @ SY205 ) @ SY201 ) )
                      | ( subset @ SV29 @ SY201 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[652]) ).

thf(709,plain,
    ! [SV86: $i,SV30: $i] :
      ( ( ~ ( ~ ( element @ SV30 @ ( powerset @ SV86 ) )
            | ( subset @ SV30 @ SV86 ) )
        | ~ ( ~ ( subset @ SV30 @ SV86 )
            | ( element @ SV30 @ ( powerset @ SV86 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[653]) ).

thf(710,plain,
    ! [SV87: $i,SV31: $i] :
      ( ( ~ ( ~ ( subset @ SV31 @ SV87 )
            | ! [SY270: $i] :
                ( ~ ( in @ SY270 @ SV31 )
                | ( in @ SY270 @ SV87 ) ) )
        | ~ ( ~ ! [SY271: $i] :
                  ( ~ ( in @ SY271 @ SV31 )
                  | ( in @ SY271 @ SV87 ) )
            | ( subset @ SV31 @ SV87 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[654]) ).

thf(711,plain,
    ! [SV32: $i,SV88: $i] :
      ( ( ( ~ ( relation @ SV88 ) )
        = $true )
      | ( ( subset @ ( relation_rng_restriction @ SV32 @ SV88 ) @ SV88 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[655]) ).

thf(712,plain,
    ! [SV89: $i,SV33: $i] :
      ( ( ~ ( ( ( set_difference @ SV33 @ SV89 )
             != empty_set )
            | ( subset @ SV33 @ SV89 ) )
        | ~ ( ~ ( subset @ SV33 @ SV89 )
            | ( ( set_difference @ SV33 @ SV89 )
              = empty_set ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[656]) ).

thf(713,plain,
    ! [SV90: $i,SV34: $i] :
      ( ( ( ~ ~ ( ~ ( ordinal @ SV34 )
                | ~ ( ordinal @ SV90 ) ) )
        = $true )
      | ( ( ~ ( ~ ( ~ ( ordinal_subset @ SV34 @ SV90 )
                  | ( subset @ SV34 @ SV90 ) )
              | ~ ( ~ ( subset @ SV34 @ SV90 )
                  | ( ordinal_subset @ SV34 @ SV90 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[657]) ).

thf(714,plain,
    ! [SV91: $i,SV35: $i] :
      ( ( ~ ( ~ ( subset @ SV35 @ ( singleton @ SV91 ) )
            | ( SV35 = empty_set )
            | ( SV35
              = ( singleton @ SV91 ) ) )
        | ~ ( ~ ( ( SV35 = empty_set )
                | ( SV35
                  = ( singleton @ SV91 ) ) )
            | ( subset @ SV35 @ ( singleton @ SV91 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[658]) ).

thf(715,plain,
    ! [SV119: $i,SV92: $i,SV36: $i] :
      ( ( ~ ~ ( ~ ( subset @ SV36 @ SV92 )
              | ~ ( subset @ SV92 @ SV119 ) )
        | ( subset @ SV36 @ SV119 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[659]) ).

thf(716,plain,
    ! [SV120: $i,SV93: $i,SV37: $i] :
      ( ( ~ ( subset @ SV37 @ SV93 )
        | ( subset @ ( set_difference @ SV37 @ SV120 ) @ ( set_difference @ SV93 @ SV120 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[660]) ).

thf(717,plain,
    ! [SV94: $i,SV38: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV38 ) @ ( singleton @ SV94 ) ) )
        = $true )
      | ( ( SV38 = SV94 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[661]) ).

thf(718,plain,
    ! [SV39: $i] :
      ( ( ( relation @ SV39 )
        = $false )
      | ( ( ! [SY219: $i] :
              ( ~ ( relation @ SY219 )
              | ~ ( subset @ SV39 @ SY219 )
              | ~ ( ~ ( subset @ ( relation_dom @ SV39 ) @ ( relation_dom @ SY219 ) )
                  | ~ ( subset @ ( relation_rng @ SV39 ) @ ( relation_rng @ SY219 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[662]) ).

thf(719,plain,
    ! [SV95: $i,SV40: $i] :
      ( ( ( ~ ( subset @ SV40 @ SV95 ) )
        = $true )
      | ( ( SV95
          = ( set_union2 @ SV40 @ ( set_difference @ SV95 @ SV40 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[663]) ).

thf(720,plain,
    ! [SV41: $i] :
      ( ( ~ ~ ( ~ ~ ( ~ ~ ( ~ ( in @ SV41 @ ( sK5_SY221 @ SV41 ) )
                          | ~ ! [SY283: $i,SY284: $i] :
                                ( ~ ~ ( ~ ( in @ SY283 @ ( sK5_SY221 @ SV41 ) )
                                      | ~ ( subset @ SY284 @ SY283 ) )
                                | ( in @ SY284 @ ( sK5_SY221 @ SV41 ) ) ) )
                    | ~ ! [SY285: $i] :
                          ~ ~ ( ~ ( in @ SY285 @ ( sK5_SY221 @ SV41 ) )
                              | ~ ! [SY286: $i] :
                                    ~ ~ ( ~ ( in @ SY286 @ ( sK5_SY221 @ SV41 ) )
                                        | ~ ! [SX4: $i] :
                                              ( ~ ( subset @ SX4 @ SY285 )
                                              | ( in @ SX4 @ SY286 ) ) ) ) )
              | ~ ! [SY288: $i] :
                    ~ ~ ( ~ ~ ( ~ ( subset @ SY288 @ ( sK5_SY221 @ SV41 ) )
                              | ~ ~ ( are_equipotent @ SY288 @ ( sK5_SY221 @ SV41 ) ) )
                        | ~ ~ ( in @ SY288 @ ( sK5_SY221 @ SV41 ) ) ) ) )
      = $false ),
    inference(extcnf_forall_neg,[status(esa)],[664]) ).

thf(721,plain,
    ! [SV96: $i,SV42: $i] :
      ( ( ~ ( ~ ( subset @ SV42 @ ( singleton @ SV96 ) )
            | ( SV42 = empty_set )
            | ( SV42
              = ( singleton @ SV96 ) ) )
        | ~ ( ~ ( ( SV42 = empty_set )
                | ( SV42
                  = ( singleton @ SV96 ) ) )
            | ( subset @ SV42 @ ( singleton @ SV96 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[665]) ).

thf(722,plain,
    ! [SV97: $i,SV43: $i] :
      ( ( ~ ( ~ ( proper_subset @ SV43 @ SV97 )
            | ~ ( ~ ( subset @ SV43 @ SV97 )
                | ~ ( ( SV43 != SV97 ) ) ) )
        | ~ ( ~ ~ ( ~ ( subset @ SV43 @ SV97 )
                  | ~ ( ( SV43 != SV97 ) ) )
            | ( proper_subset @ SV43 @ SV97 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[666]) ).

thf(723,plain,
    ! [SV98: $i,SV44: $i] :
      ( ( ~ ( ( SV44 != SV98 )
            | ~ ( ~ ( subset @ SV44 @ SV98 )
                | ~ ( subset @ SV98 @ SV44 ) ) )
        | ~ ( ~ ~ ( ~ ( subset @ SV44 @ SV98 )
                  | ~ ( subset @ SV98 @ SV44 ) )
            | ( SV44 = SV98 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[667]) ).

thf(724,plain,
    ! [SV99: $i,SV45: $i,SV121: $i] :
      ( ( ~ ( relation @ SV121 )
        | ( subset @ ( fiber @ ( relation_restriction @ SV121 @ SV45 ) @ SV99 ) @ ( fiber @ SV121 @ SV99 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[668]) ).

thf(725,plain,
    ! [SV100: $i,SV46: $i,SV122: $i] :
      ( ( ~ ( relation @ SV122 )
        | ~ ( subset @ SV46 @ SV100 )
        | ( subset @ ( relation_inverse_image @ SV122 @ SV46 ) @ ( relation_inverse_image @ SV122 @ SV100 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[669]) ).

thf(726,plain,
    ! [SV47: $i] :
      ( ( ( subset @ SV47 @ empty_set )
        = $false )
      | ( ( SV47 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[670]) ).

thf(727,plain,
    ! [SV48: $i,SV101: $i] :
      ( ( ( ~ ( relation @ SV101 ) )
        = $true )
      | ( ( subset @ ( relation_rng @ ( relation_rng_restriction @ SV48 @ SV101 ) ) @ ( relation_rng @ SV101 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[671]) ).

thf(728,plain,
    ! [SV49: $i] :
      ( ( ( relation @ SV49 )
        = $false )
      | ( ( ! [SY236: $i] :
              ( ~ ( relation @ SY236 )
              | ( subset @ ( relation_rng @ ( relation_composition @ SV49 @ SY236 ) ) @ ( relation_rng @ SY236 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[672]) ).

thf(729,plain,
    ! [SV102: $i,SV50: $i,SV123: $i] :
      ( ( ~ ( relation_of2_as_subset @ SV123 @ SV50 @ SV102 )
        | ( element @ SV123 @ ( powerset @ ( cartesian_product2 @ SV50 @ SV102 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[673]) ).

thf(730,plain,
    ! [SV124: $i,SV103: $i,SV51: $i] :
      ( ( ! [SY289: $i] :
            ( ~ ~ ( ~ ( subset @ SV51 @ SV103 )
                  | ~ ( subset @ SV124 @ SY289 ) )
            | ( subset @ ( cartesian_product2 @ SV51 @ SV124 ) @ ( cartesian_product2 @ SV103 @ SY289 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[674]) ).

thf(731,plain,
    ! [SV52: $i,SV104: $i] :
      ( ( ( ~ ( relation @ SV104 ) )
        = $true )
      | ( ( subset @ ( relation_rng @ ( relation_rng_restriction @ SV52 @ SV104 ) ) @ SV52 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[675]) ).

thf(732,plain,
    ! [SV125: $i,SV105: $i,SV53: $i] :
      ( ( ~ ( subset @ SV53 @ SV105 )
        | ~ ( ~ ( subset @ ( cartesian_product2 @ SV53 @ SV125 ) @ ( cartesian_product2 @ SV105 @ SV125 ) )
            | ~ ( subset @ ( cartesian_product2 @ SV125 @ SV53 ) @ ( cartesian_product2 @ SV125 @ SV105 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[676]) ).

thf(733,plain,
    ! [SV106: $i,SV54: $i] :
      ( ( ( ~ ( subset @ SV54 @ SV106 ) )
        = $true )
      | ( ( ( set_intersection2 @ SV54 @ SV106 )
          = SV54 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[677]) ).

thf(734,plain,
    ! [SV55: $i] :
      ( ( ~ ~ ( ~ ~ ( ~ ~ ( ~ ( in @ SV55 @ ( sK6_SY246 @ SV55 ) )
                          | ~ ! [SY290: $i,SY291: $i] :
                                ( ~ ~ ( ~ ( in @ SY290 @ ( sK6_SY246 @ SV55 ) )
                                      | ~ ( subset @ SY291 @ SY290 ) )
                                | ( in @ SY291 @ ( sK6_SY246 @ SV55 ) ) ) )
                    | ~ ! [SY292: $i] :
                          ( ~ ( in @ SY292 @ ( sK6_SY246 @ SV55 ) )
                          | ( in @ ( powerset @ SY292 ) @ ( sK6_SY246 @ SV55 ) ) ) )
              | ~ ! [SY293: $i] :
                    ~ ~ ( ~ ~ ( ~ ( subset @ SY293 @ ( sK6_SY246 @ SV55 ) )
                              | ~ ~ ( are_equipotent @ SY293 @ ( sK6_SY246 @ SV55 ) ) )
                        | ~ ~ ( in @ SY293 @ ( sK6_SY246 @ SV55 ) ) ) ) )
      = $false ),
    inference(extcnf_forall_neg,[status(esa)],[678]) ).

thf(735,plain,
    ! [SV107: $i,SV56: $i] :
      ( ( ( ~ ( in @ SV56 @ SV107 ) )
        = $true )
      | ( ( subset @ SV56 @ ( union @ SV107 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[679]) ).

thf(736,plain,
    ! [SV108: $i,SV57: $i] :
      ( ( ~ ( ~ ( subset @ ( singleton @ SV57 ) @ SV108 )
            | ( in @ SV57 @ SV108 ) )
        | ~ ( ~ ( in @ SV57 @ SV108 )
            | ( subset @ ( singleton @ SV57 ) @ SV108 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[680]) ).

thf(737,plain,
    ! [SV109: $i,SV58: $i,SV126: $i] :
      ( ( ! [SY294: $i] :
            ( ~ ( relation_of2_as_subset @ SY294 @ SV126 @ SV58 )
            | ~ ( subset @ ( relation_rng @ SY294 ) @ SV109 )
            | ( relation_of2_as_subset @ SY294 @ SV126 @ SV109 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[681]) ).

thf(738,plain,
    ! [SV59: $i] :
      ( ( ( relation @ SV59 )
        = $false )
      | ( ( ! [SY256: $i] :
              ( ~ ( relation @ SY256 )
              | ( subset @ ( relation_dom @ ( relation_composition @ SV59 @ SY256 ) ) @ ( relation_dom @ SV59 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[682]) ).

thf(739,plain,
    ! [SV127: $i,SV110: $i,SV60: $i] :
      ( ( ~ ( subset @ SV60 @ SV110 )
        | ( in @ SV127 @ SV60 )
        | ( subset @ SV60 @ ( set_difference @ SV110 @ ( singleton @ SV127 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[683]) ).

thf(740,plain,
    ! [SV6: $i] :
      ( ( ( ~ ( in @ ( sK7_SY166 @ SV6 ) @ SV6 )
          | ~ ( ~ ( ordinal @ ( sK7_SY166 @ SV6 ) )
              | ~ ( subset @ ( sK7_SY166 @ SV6 ) @ SV6 ) ) )
        = $false )
      | ( ( ordinal @ SV6 )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[684]) ).

thf(741,plain,
    ! [SV7: $i,SV65: $i] :
      ( ( ( relation @ SV65 )
        = $false )
      | ( ( subset @ ( relation_rng @ ( relation_dom_restriction @ SV65 @ SV7 ) ) @ ( relation_rng @ SV65 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[685]) ).

thf(742,plain,
    ! [SV66: $i,SV8: $i] :
      ( ( ~ ( ~ ( subset @ ( singleton @ SV8 ) @ SV66 )
            | ( in @ SV8 @ SV66 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[686]) ).

thf(743,plain,
    ! [SV66: $i,SV8: $i] :
      ( ( ~ ( ~ ( in @ SV8 @ SV66 )
            | ( subset @ ( singleton @ SV8 ) @ SV66 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[686]) ).

thf(744,plain,
    ! [SV67: $i,SV9: $i] :
      ( ( ~ ( subset @ SV9 @ SV67 )
        | ~ ( proper_subset @ SV67 @ SV9 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[687]) ).

thf(745,plain,
    ! [SV68: $i,SV10: $i] :
      ( ( ( in @ SV10 @ SV68 )
        = $false )
      | ( ( subset @ SV10 @ ( union @ SV68 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[688]) ).

thf(746,plain,
    ! [SV69: $i,SV11: $i,SV111: $i] :
      ( ( ~ ( ~ ( relation_of2 @ SV111 @ SV11 @ SV69 )
            | ( subset @ SV111 @ ( cartesian_product2 @ SV11 @ SV69 ) ) )
        | ~ ( ~ ( subset @ SV111 @ ( cartesian_product2 @ SV11 @ SV69 ) )
            | ( relation_of2 @ SV111 @ SV11 @ SV69 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[689]) ).

thf(747,plain,
    ! [SV12: $i,SV70: $i] :
      ( ( ~ ( ( SV70
             != ( powerset @ SV12 ) )
            | ! [SY260: $i] :
                ~ ( ~ ( ~ ( in @ SY260 @ SV70 )
                      | ( subset @ SY260 @ SV12 ) )
                  | ~ ( ~ ( subset @ SY260 @ SV12 )
                      | ( in @ SY260 @ SV70 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[690]) ).

thf(748,plain,
    ! [SV12: $i,SV70: $i] :
      ( ( ~ ( ~ ! [SY261: $i] :
                  ~ ( ~ ( ~ ( in @ SY261 @ SV70 )
                        | ( subset @ SY261 @ SV12 ) )
                    | ~ ( ~ ( subset @ SY261 @ SV12 )
                        | ( in @ SY261 @ SV70 ) ) )
            | ( SV70
              = ( powerset @ SV12 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[690]) ).

thf(749,plain,
    ! [SV112: $i,SV71: $i,SV13: $i] :
      ( ( ( ~ ~ ( ~ ( subset @ SV13 @ SV71 )
                | ~ ( subset @ SV112 @ SV71 ) ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV13 @ SV112 ) @ SV71 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[691]) ).

thf(750,plain,
    ! [SV14: $i,SV72: $i] :
      ( ( ( relation @ SV72 )
        = $false )
      | ( ( subset @ ( relation_image @ SV72 @ SV14 ) @ ( relation_rng @ SV72 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[692]) ).

thf(751,plain,
    ! [SV15: $i,SV73: $i] :
      ( ( ( relation @ SV73 )
        = $false )
      | ( ( subset @ ( relation_dom_restriction @ SV73 @ SV15 ) @ SV73 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[693]) ).

thf(752,plain,
    ! [SV16: $i,SV74: $i] :
      ( ( ( relation @ SV74 )
        = $false )
      | ( ( ~ ( ~ ( subset @ ( relation_field @ ( relation_restriction @ SV74 @ SV16 ) ) @ ( relation_field @ SV74 ) )
              | ~ ( subset @ ( relation_field @ ( relation_restriction @ SV74 @ SV16 ) ) @ SV16 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[694]) ).

thf(753,plain,
    ! [SV17: $i,SV75: $i] :
      ( ( ~ ( relation_of2_as_subset @ ( sK8_SY263 @ SV75 @ SV17 ) @ SV17 @ SV75 ) )
      = $false ),
    inference(extcnf_forall_neg,[status(esa)],[695]) ).

thf(754,plain,
    ! [SV18: $i] :
      ( ( ~ ( epsilon_transitive @ SV18 )
        | ! [SY183: $i] :
            ( ~ ( in @ SY183 @ SV18 )
            | ( subset @ SY183 @ SV18 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[696]) ).

thf(755,plain,
    ! [SV18: $i] :
      ( ( ~ ! [SY184: $i] :
              ( ~ ( in @ SY184 @ SV18 )
              | ( subset @ SY184 @ SV18 ) )
        | ( epsilon_transitive @ SV18 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[697]) ).

thf(756,plain,
    ! [SV113: $i,SV76: $i,SV19: $i] :
      ( ( ( ~ ~ ( ~ ( subset @ SV19 @ SV76 )
                | ~ ( subset @ SV19 @ SV113 ) ) )
        = $true )
      | ( ( subset @ SV19 @ ( set_intersection2 @ SV76 @ SV113 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[698]) ).

thf(757,plain,
    ! [SV77: $i,SV20: $i] :
      ( ( ( subset @ SV20 @ SV77 )
        = $false )
      | ( ( ( set_union2 @ SV20 @ SV77 )
          = SV77 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[699]) ).

thf(758,plain,
    ! [SV78: $i,SV21: $i,SV114: $i] :
      ( ( ~ ( ~ ( relation_of2_as_subset @ SV114 @ SV21 @ SV78 )
            | ( relation_of2 @ SV114 @ SV21 @ SV78 ) )
        | ~ ( ~ ( relation_of2 @ SV114 @ SV21 @ SV78 )
            | ( relation_of2_as_subset @ SV114 @ SV21 @ SV78 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[700]) ).

thf(759,plain,
    ! [SV115: $i,SV79: $i,SV22: $i] :
      ( ( ~ ( ~ ( subset @ ( unordered_pair @ SV22 @ SV79 ) @ SV115 )
            | ~ ( ~ ( in @ SV22 @ SV115 )
                | ~ ( in @ SV79 @ SV115 ) ) )
        | ~ ( ~ ~ ( ~ ( in @ SV22 @ SV115 )
                  | ~ ( in @ SV79 @ SV115 ) )
            | ( subset @ ( unordered_pair @ SV22 @ SV79 ) @ SV115 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[701]) ).

thf(760,plain,
    ! [SV23: $i,SV80: $i] :
      ( ( ( relation @ SV80 )
        = $false )
      | ( ( subset @ ( relation_dom @ ( relation_rng_restriction @ SV23 @ SV80 ) ) @ ( relation_dom @ SV80 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[702]) ).

thf(761,plain,
    ! [SV24: $i,SV81: $i] :
      ( ( ( relation @ SV81 )
        = $false )
      | ( ( subset @ ( relation_inverse_image @ SV81 @ SV24 ) @ ( relation_dom @ SV81 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[703]) ).

thf(762,plain,
    ! [SV82: $i,SV25: $i] :
      ( ( ~ ( ( ( set_difference @ SV25 @ SV82 )
             != empty_set )
            | ( subset @ SV25 @ SV82 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[704]) ).

thf(763,plain,
    ! [SV82: $i,SV25: $i] :
      ( ( ~ ( ~ ( subset @ SV25 @ SV82 )
            | ( ( set_difference @ SV25 @ SV82 )
              = empty_set ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[704]) ).

thf(764,plain,
    ! [SV116: $i,SV83: $i,SV26: $i] :
      ( ( ( ~ ~ ( ~ ( subset @ SV26 @ SV83 )
                | ~ ( disjoint @ SV83 @ SV116 ) ) )
        = $true )
      | ( ( disjoint @ SV26 @ SV116 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[705]) ).

thf(765,plain,
    ! [SV84: $i,SV27: $i,SV117: $i] :
      ( ( ( ~ ( relation_of2_as_subset @ SV117 @ SV27 @ SV84 ) )
        = $true )
      | ( ( ~ ( ~ ( subset @ ( relation_dom @ SV117 ) @ SV27 )
              | ~ ( subset @ ( relation_rng @ SV117 ) @ SV84 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[706]) ).

thf(766,plain,
    ! [SV118: $i,SV85: $i,SV28: $i] :
      ( ( ( ~ ( subset @ SV28 @ SV85 ) )
        = $true )
      | ( ( subset @ ( set_intersection2 @ SV28 @ SV118 ) @ ( set_intersection2 @ SV85 @ SV118 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[707]) ).

thf(767,plain,
    ! [SV29: $i,SV128: $i] :
      ( ( ( ~ ( relation @ SV128 )
          | ~ ( ~ ( ~ ( subset @ SV29 @ SV128 )
                  | ! [SY295: $i,SY296: $i] :
                      ( ~ ( in @ ( ordered_pair @ SY295 @ SY296 ) @ SV29 )
                      | ( in @ ( ordered_pair @ SY295 @ SY296 ) @ SV128 ) ) )
              | ~ ( ~ ! [SY297: $i,SY298: $i] :
                        ( ~ ( in @ ( ordered_pair @ SY297 @ SY298 ) @ SV29 )
                        | ( in @ ( ordered_pair @ SY297 @ SY298 ) @ SV128 ) )
                  | ( subset @ SV29 @ SV128 ) ) ) )
        = $true )
      | ( ( relation @ SV29 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[708]) ).

thf(768,plain,
    ! [SV86: $i,SV30: $i] :
      ( ( ~ ( ~ ( element @ SV30 @ ( powerset @ SV86 ) )
            | ( subset @ SV30 @ SV86 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[709]) ).

thf(769,plain,
    ! [SV86: $i,SV30: $i] :
      ( ( ~ ( ~ ( subset @ SV30 @ SV86 )
            | ( element @ SV30 @ ( powerset @ SV86 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[709]) ).

thf(770,plain,
    ! [SV87: $i,SV31: $i] :
      ( ( ~ ( ~ ( subset @ SV31 @ SV87 )
            | ! [SY270: $i] :
                ( ~ ( in @ SY270 @ SV31 )
                | ( in @ SY270 @ SV87 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[710]) ).

thf(771,plain,
    ! [SV87: $i,SV31: $i] :
      ( ( ~ ( ~ ! [SY271: $i] :
                  ( ~ ( in @ SY271 @ SV31 )
                  | ( in @ SY271 @ SV87 ) )
            | ( subset @ SV31 @ SV87 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[710]) ).

thf(772,plain,
    ! [SV32: $i,SV88: $i] :
      ( ( ( relation @ SV88 )
        = $false )
      | ( ( subset @ ( relation_rng_restriction @ SV32 @ SV88 ) @ SV88 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[711]) ).

thf(773,plain,
    ! [SV89: $i,SV33: $i] :
      ( ( ~ ( ( ( set_difference @ SV33 @ SV89 )
             != empty_set )
            | ( subset @ SV33 @ SV89 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[712]) ).

thf(774,plain,
    ! [SV89: $i,SV33: $i] :
      ( ( ~ ( ~ ( subset @ SV33 @ SV89 )
            | ( ( set_difference @ SV33 @ SV89 )
              = empty_set ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[712]) ).

thf(775,plain,
    ! [SV90: $i,SV34: $i] :
      ( ( ( ~ ( ~ ( ordinal @ SV34 )
              | ~ ( ordinal @ SV90 ) ) )
        = $false )
      | ( ( ~ ( ~ ( ~ ( ordinal_subset @ SV34 @ SV90 )
                  | ( subset @ SV34 @ SV90 ) )
              | ~ ( ~ ( subset @ SV34 @ SV90 )
                  | ( ordinal_subset @ SV34 @ SV90 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[713]) ).

thf(776,plain,
    ! [SV91: $i,SV35: $i] :
      ( ( ~ ( ~ ( subset @ SV35 @ ( singleton @ SV91 ) )
            | ( SV35 = empty_set )
            | ( SV35
              = ( singleton @ SV91 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[714]) ).

thf(777,plain,
    ! [SV91: $i,SV35: $i] :
      ( ( ~ ( ~ ( ( SV35 = empty_set )
                | ( SV35
                  = ( singleton @ SV91 ) ) )
            | ( subset @ SV35 @ ( singleton @ SV91 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[714]) ).

thf(778,plain,
    ! [SV119: $i,SV92: $i,SV36: $i] :
      ( ( ( ~ ~ ( ~ ( subset @ SV36 @ SV92 )
                | ~ ( subset @ SV92 @ SV119 ) ) )
        = $true )
      | ( ( subset @ SV36 @ SV119 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[715]) ).

thf(779,plain,
    ! [SV120: $i,SV93: $i,SV37: $i] :
      ( ( ( ~ ( subset @ SV37 @ SV93 ) )
        = $true )
      | ( ( subset @ ( set_difference @ SV37 @ SV120 ) @ ( set_difference @ SV93 @ SV120 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[716]) ).

thf(780,plain,
    ! [SV94: $i,SV38: $i] :
      ( ( ( subset @ ( singleton @ SV38 ) @ ( singleton @ SV94 ) )
        = $false )
      | ( ( SV38 = SV94 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[717]) ).

thf(781,plain,
    ! [SV39: $i,SV129: $i] :
      ( ( ( ~ ( relation @ SV129 )
          | ~ ( subset @ SV39 @ SV129 )
          | ~ ( ~ ( subset @ ( relation_dom @ SV39 ) @ ( relation_dom @ SV129 ) )
              | ~ ( subset @ ( relation_rng @ SV39 ) @ ( relation_rng @ SV129 ) ) ) )
        = $true )
      | ( ( relation @ SV39 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[718]) ).

thf(782,plain,
    ! [SV95: $i,SV40: $i] :
      ( ( ( subset @ SV40 @ SV95 )
        = $false )
      | ( ( SV95
          = ( set_union2 @ SV40 @ ( set_difference @ SV95 @ SV40 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[719]) ).

thf(783,plain,
    ! [SV41: $i] :
      ( ( ~ ( ~ ~ ( ~ ~ ( ~ ( in @ SV41 @ ( sK5_SY221 @ SV41 ) )
                        | ~ ! [SY283: $i,SY284: $i] :
                              ( ~ ~ ( ~ ( in @ SY283 @ ( sK5_SY221 @ SV41 ) )
                                    | ~ ( subset @ SY284 @ SY283 ) )
                              | ( in @ SY284 @ ( sK5_SY221 @ SV41 ) ) ) )
                  | ~ ! [SY285: $i] :
                        ~ ~ ( ~ ( in @ SY285 @ ( sK5_SY221 @ SV41 ) )
                            | ~ ! [SY286: $i] :
                                  ~ ~ ( ~ ( in @ SY286 @ ( sK5_SY221 @ SV41 ) )
                                      | ~ ! [SX4: $i] :
                                            ( ~ ( subset @ SX4 @ SY285 )
                                            | ( in @ SX4 @ SY286 ) ) ) ) )
            | ~ ! [SY288: $i] :
                  ~ ~ ( ~ ~ ( ~ ( subset @ SY288 @ ( sK5_SY221 @ SV41 ) )
                            | ~ ~ ( are_equipotent @ SY288 @ ( sK5_SY221 @ SV41 ) ) )
                      | ~ ~ ( in @ SY288 @ ( sK5_SY221 @ SV41 ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[720]) ).

thf(784,plain,
    ! [SV96: $i,SV42: $i] :
      ( ( ~ ( ~ ( subset @ SV42 @ ( singleton @ SV96 ) )
            | ( SV42 = empty_set )
            | ( SV42
              = ( singleton @ SV96 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[721]) ).

thf(785,plain,
    ! [SV96: $i,SV42: $i] :
      ( ( ~ ( ~ ( ( SV42 = empty_set )
                | ( SV42
                  = ( singleton @ SV96 ) ) )
            | ( subset @ SV42 @ ( singleton @ SV96 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[721]) ).

thf(786,plain,
    ! [SV97: $i,SV43: $i] :
      ( ( ~ ( ~ ( proper_subset @ SV43 @ SV97 )
            | ~ ( ~ ( subset @ SV43 @ SV97 )
                | ~ ( ( SV43 != SV97 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[722]) ).

thf(787,plain,
    ! [SV97: $i,SV43: $i] :
      ( ( ~ ( ~ ~ ( ~ ( subset @ SV43 @ SV97 )
                  | ~ ( ( SV43 != SV97 ) ) )
            | ( proper_subset @ SV43 @ SV97 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[722]) ).

thf(788,plain,
    ! [SV98: $i,SV44: $i] :
      ( ( ~ ( ( SV44 != SV98 )
            | ~ ( ~ ( subset @ SV44 @ SV98 )
                | ~ ( subset @ SV98 @ SV44 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[723]) ).

thf(789,plain,
    ! [SV98: $i,SV44: $i] :
      ( ( ~ ( ~ ~ ( ~ ( subset @ SV44 @ SV98 )
                  | ~ ( subset @ SV98 @ SV44 ) )
            | ( SV44 = SV98 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[723]) ).

thf(790,plain,
    ! [SV99: $i,SV45: $i,SV121: $i] :
      ( ( ( ~ ( relation @ SV121 ) )
        = $true )
      | ( ( subset @ ( fiber @ ( relation_restriction @ SV121 @ SV45 ) @ SV99 ) @ ( fiber @ SV121 @ SV99 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[724]) ).

thf(791,plain,
    ! [SV100: $i,SV46: $i,SV122: $i] :
      ( ( ( ~ ( relation @ SV122 ) )
        = $true )
      | ( ( ~ ( subset @ SV46 @ SV100 )
          | ( subset @ ( relation_inverse_image @ SV122 @ SV46 ) @ ( relation_inverse_image @ SV122 @ SV100 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[725]) ).

thf(792,plain,
    ! [SV48: $i,SV101: $i] :
      ( ( ( relation @ SV101 )
        = $false )
      | ( ( subset @ ( relation_rng @ ( relation_rng_restriction @ SV48 @ SV101 ) ) @ ( relation_rng @ SV101 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[727]) ).

thf(793,plain,
    ! [SV49: $i,SV130: $i] :
      ( ( ( ~ ( relation @ SV130 )
          | ( subset @ ( relation_rng @ ( relation_composition @ SV49 @ SV130 ) ) @ ( relation_rng @ SV130 ) ) )
        = $true )
      | ( ( relation @ SV49 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[728]) ).

thf(794,plain,
    ! [SV102: $i,SV50: $i,SV123: $i] :
      ( ( ( ~ ( relation_of2_as_subset @ SV123 @ SV50 @ SV102 ) )
        = $true )
      | ( ( element @ SV123 @ ( powerset @ ( cartesian_product2 @ SV50 @ SV102 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[729]) ).

thf(795,plain,
    ! [SV131: $i,SV124: $i,SV103: $i,SV51: $i] :
      ( ( ~ ~ ( ~ ( subset @ SV51 @ SV103 )
              | ~ ( subset @ SV124 @ SV131 ) )
        | ( subset @ ( cartesian_product2 @ SV51 @ SV124 ) @ ( cartesian_product2 @ SV103 @ SV131 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[730]) ).

thf(796,plain,
    ! [SV52: $i,SV104: $i] :
      ( ( ( relation @ SV104 )
        = $false )
      | ( ( subset @ ( relation_rng @ ( relation_rng_restriction @ SV52 @ SV104 ) ) @ SV52 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[731]) ).

thf(797,plain,
    ! [SV125: $i,SV105: $i,SV53: $i] :
      ( ( ( ~ ( subset @ SV53 @ SV105 ) )
        = $true )
      | ( ( ~ ( ~ ( subset @ ( cartesian_product2 @ SV53 @ SV125 ) @ ( cartesian_product2 @ SV105 @ SV125 ) )
              | ~ ( subset @ ( cartesian_product2 @ SV125 @ SV53 ) @ ( cartesian_product2 @ SV125 @ SV105 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[732]) ).

thf(798,plain,
    ! [SV106: $i,SV54: $i] :
      ( ( ( subset @ SV54 @ SV106 )
        = $false )
      | ( ( ( set_intersection2 @ SV54 @ SV106 )
          = SV54 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[733]) ).

thf(799,plain,
    ! [SV55: $i] :
      ( ( ~ ( ~ ~ ( ~ ~ ( ~ ( in @ SV55 @ ( sK6_SY246 @ SV55 ) )
                        | ~ ! [SY290: $i,SY291: $i] :
                              ( ~ ~ ( ~ ( in @ SY290 @ ( sK6_SY246 @ SV55 ) )
                                    | ~ ( subset @ SY291 @ SY290 ) )
                              | ( in @ SY291 @ ( sK6_SY246 @ SV55 ) ) ) )
                  | ~ ! [SY292: $i] :
                        ( ~ ( in @ SY292 @ ( sK6_SY246 @ SV55 ) )
                        | ( in @ ( powerset @ SY292 ) @ ( sK6_SY246 @ SV55 ) ) ) )
            | ~ ! [SY293: $i] :
                  ~ ~ ( ~ ~ ( ~ ( subset @ SY293 @ ( sK6_SY246 @ SV55 ) )
                            | ~ ~ ( are_equipotent @ SY293 @ ( sK6_SY246 @ SV55 ) ) )
                      | ~ ~ ( in @ SY293 @ ( sK6_SY246 @ SV55 ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[734]) ).

thf(800,plain,
    ! [SV107: $i,SV56: $i] :
      ( ( ( in @ SV56 @ SV107 )
        = $false )
      | ( ( subset @ SV56 @ ( union @ SV107 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[735]) ).

thf(801,plain,
    ! [SV108: $i,SV57: $i] :
      ( ( ~ ( ~ ( subset @ ( singleton @ SV57 ) @ SV108 )
            | ( in @ SV57 @ SV108 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[736]) ).

thf(802,plain,
    ! [SV108: $i,SV57: $i] :
      ( ( ~ ( ~ ( in @ SV57 @ SV108 )
            | ( subset @ ( singleton @ SV57 ) @ SV108 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[736]) ).

thf(803,plain,
    ! [SV109: $i,SV58: $i,SV126: $i,SV132: $i] :
      ( ( ~ ( relation_of2_as_subset @ SV132 @ SV126 @ SV58 )
        | ~ ( subset @ ( relation_rng @ SV132 ) @ SV109 )
        | ( relation_of2_as_subset @ SV132 @ SV126 @ SV109 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[737]) ).

thf(804,plain,
    ! [SV59: $i,SV133: $i] :
      ( ( ( ~ ( relation @ SV133 )
          | ( subset @ ( relation_dom @ ( relation_composition @ SV59 @ SV133 ) ) @ ( relation_dom @ SV59 ) ) )
        = $true )
      | ( ( relation @ SV59 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[738]) ).

thf(805,plain,
    ! [SV127: $i,SV110: $i,SV60: $i] :
      ( ( ( ~ ( subset @ SV60 @ SV110 ) )
        = $true )
      | ( ( ( in @ SV127 @ SV60 )
          | ( subset @ SV60 @ ( set_difference @ SV110 @ ( singleton @ SV127 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[739]) ).

thf(806,plain,
    ! [SV6: $i] :
      ( ( ( ~ ( in @ ( sK7_SY166 @ SV6 ) @ SV6 ) )
        = $false )
      | ( ( ordinal @ SV6 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[740]) ).

thf(807,plain,
    ! [SV6: $i] :
      ( ( ( ~ ( ~ ( ordinal @ ( sK7_SY166 @ SV6 ) )
              | ~ ( subset @ ( sK7_SY166 @ SV6 ) @ SV6 ) ) )
        = $false )
      | ( ( ordinal @ SV6 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[740]) ).

thf(808,plain,
    ! [SV66: $i,SV8: $i] :
      ( ( ~ ( subset @ ( singleton @ SV8 ) @ SV66 )
        | ( in @ SV8 @ SV66 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[742]) ).

thf(809,plain,
    ! [SV66: $i,SV8: $i] :
      ( ( ~ ( in @ SV8 @ SV66 )
        | ( subset @ ( singleton @ SV8 ) @ SV66 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[743]) ).

thf(810,plain,
    ! [SV67: $i,SV9: $i] :
      ( ( ( ~ ( subset @ SV9 @ SV67 ) )
        = $true )
      | ( ( ~ ( proper_subset @ SV67 @ SV9 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[744]) ).

thf(811,plain,
    ! [SV69: $i,SV11: $i,SV111: $i] :
      ( ( ~ ( ~ ( relation_of2 @ SV111 @ SV11 @ SV69 )
            | ( subset @ SV111 @ ( cartesian_product2 @ SV11 @ SV69 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[746]) ).

thf(812,plain,
    ! [SV69: $i,SV11: $i,SV111: $i] :
      ( ( ~ ( ~ ( subset @ SV111 @ ( cartesian_product2 @ SV11 @ SV69 ) )
            | ( relation_of2 @ SV111 @ SV11 @ SV69 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[746]) ).

thf(813,plain,
    ! [SV12: $i,SV70: $i] :
      ( ( ( SV70
         != ( powerset @ SV12 ) )
        | ! [SY260: $i] :
            ~ ( ~ ( ~ ( in @ SY260 @ SV70 )
                  | ( subset @ SY260 @ SV12 ) )
              | ~ ( ~ ( subset @ SY260 @ SV12 )
                  | ( in @ SY260 @ SV70 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[747]) ).

thf(814,plain,
    ! [SV12: $i,SV70: $i] :
      ( ( ~ ! [SY261: $i] :
              ~ ( ~ ( ~ ( in @ SY261 @ SV70 )
                    | ( subset @ SY261 @ SV12 ) )
                | ~ ( ~ ( subset @ SY261 @ SV12 )
                    | ( in @ SY261 @ SV70 ) ) )
        | ( SV70
          = ( powerset @ SV12 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[748]) ).

thf(815,plain,
    ! [SV112: $i,SV71: $i,SV13: $i] :
      ( ( ( ~ ( ~ ( subset @ SV13 @ SV71 )
              | ~ ( subset @ SV112 @ SV71 ) ) )
        = $false )
      | ( ( subset @ ( set_union2 @ SV13 @ SV112 ) @ SV71 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[749]) ).

thf(816,plain,
    ! [SV16: $i,SV74: $i] :
      ( ( ( ~ ( subset @ ( relation_field @ ( relation_restriction @ SV74 @ SV16 ) ) @ ( relation_field @ SV74 ) )
          | ~ ( subset @ ( relation_field @ ( relation_restriction @ SV74 @ SV16 ) ) @ SV16 ) )
        = $false )
      | ( ( relation @ SV74 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[752]) ).

thf(817,plain,
    ! [SV17: $i,SV75: $i] :
      ( ( relation_of2_as_subset @ ( sK8_SY263 @ SV75 @ SV17 ) @ SV17 @ SV75 )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[753]) ).

thf(818,plain,
    ! [SV18: $i] :
      ( ( ( ~ ( epsilon_transitive @ SV18 ) )
        = $true )
      | ( ( ! [SY183: $i] :
              ( ~ ( in @ SY183 @ SV18 )
              | ( subset @ SY183 @ SV18 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[754]) ).

thf(819,plain,
    ! [SV18: $i] :
      ( ( ( ~ ! [SY184: $i] :
                ( ~ ( in @ SY184 @ SV18 )
                | ( subset @ SY184 @ SV18 ) ) )
        = $true )
      | ( ( epsilon_transitive @ SV18 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[755]) ).

thf(820,plain,
    ! [SV113: $i,SV76: $i,SV19: $i] :
      ( ( ( ~ ( ~ ( subset @ SV19 @ SV76 )
              | ~ ( subset @ SV19 @ SV113 ) ) )
        = $false )
      | ( ( subset @ SV19 @ ( set_intersection2 @ SV76 @ SV113 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[756]) ).

thf(821,plain,
    ! [SV78: $i,SV21: $i,SV114: $i] :
      ( ( ~ ( ~ ( relation_of2_as_subset @ SV114 @ SV21 @ SV78 )
            | ( relation_of2 @ SV114 @ SV21 @ SV78 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[758]) ).

thf(822,plain,
    ! [SV78: $i,SV21: $i,SV114: $i] :
      ( ( ~ ( ~ ( relation_of2 @ SV114 @ SV21 @ SV78 )
            | ( relation_of2_as_subset @ SV114 @ SV21 @ SV78 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[758]) ).

thf(823,plain,
    ! [SV115: $i,SV79: $i,SV22: $i] :
      ( ( ~ ( ~ ( subset @ ( unordered_pair @ SV22 @ SV79 ) @ SV115 )
            | ~ ( ~ ( in @ SV22 @ SV115 )
                | ~ ( in @ SV79 @ SV115 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[759]) ).

thf(824,plain,
    ! [SV79: $i,SV115: $i,SV22: $i] :
      ( ( ~ ( ~ ~ ( ~ ( in @ SV22 @ SV115 )
                  | ~ ( in @ SV79 @ SV115 ) )
            | ( subset @ ( unordered_pair @ SV22 @ SV79 ) @ SV115 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[759]) ).

thf(825,plain,
    ! [SV82: $i,SV25: $i] :
      ( ( ( ( set_difference @ SV25 @ SV82 )
         != empty_set )
        | ( subset @ SV25 @ SV82 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[762]) ).

thf(826,plain,
    ! [SV82: $i,SV25: $i] :
      ( ( ~ ( subset @ SV25 @ SV82 )
        | ( ( set_difference @ SV25 @ SV82 )
          = empty_set ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[763]) ).

thf(827,plain,
    ! [SV116: $i,SV83: $i,SV26: $i] :
      ( ( ( ~ ( ~ ( subset @ SV26 @ SV83 )
              | ~ ( disjoint @ SV83 @ SV116 ) ) )
        = $false )
      | ( ( disjoint @ SV26 @ SV116 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[764]) ).

thf(828,plain,
    ! [SV84: $i,SV27: $i,SV117: $i] :
      ( ( ( relation_of2_as_subset @ SV117 @ SV27 @ SV84 )
        = $false )
      | ( ( ~ ( ~ ( subset @ ( relation_dom @ SV117 ) @ SV27 )
              | ~ ( subset @ ( relation_rng @ SV117 ) @ SV84 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[765]) ).

thf(829,plain,
    ! [SV118: $i,SV85: $i,SV28: $i] :
      ( ( ( subset @ SV28 @ SV85 )
        = $false )
      | ( ( subset @ ( set_intersection2 @ SV28 @ SV118 ) @ ( set_intersection2 @ SV85 @ SV118 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[766]) ).

thf(830,plain,
    ! [SV29: $i,SV128: $i] :
      ( ( ( ~ ( relation @ SV128 ) )
        = $true )
      | ( ( ~ ( ~ ( ~ ( subset @ SV29 @ SV128 )
                  | ! [SY295: $i,SY296: $i] :
                      ( ~ ( in @ ( ordered_pair @ SY295 @ SY296 ) @ SV29 )
                      | ( in @ ( ordered_pair @ SY295 @ SY296 ) @ SV128 ) ) )
              | ~ ( ~ ! [SY297: $i,SY298: $i] :
                        ( ~ ( in @ ( ordered_pair @ SY297 @ SY298 ) @ SV29 )
                        | ( in @ ( ordered_pair @ SY297 @ SY298 ) @ SV128 ) )
                  | ( subset @ SV29 @ SV128 ) ) ) )
        = $true )
      | ( ( relation @ SV29 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[767]) ).

thf(831,plain,
    ! [SV86: $i,SV30: $i] :
      ( ( ~ ( element @ SV30 @ ( powerset @ SV86 ) )
        | ( subset @ SV30 @ SV86 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[768]) ).

thf(832,plain,
    ! [SV86: $i,SV30: $i] :
      ( ( ~ ( subset @ SV30 @ SV86 )
        | ( element @ SV30 @ ( powerset @ SV86 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[769]) ).

thf(833,plain,
    ! [SV87: $i,SV31: $i] :
      ( ( ~ ( subset @ SV31 @ SV87 )
        | ! [SY270: $i] :
            ( ~ ( in @ SY270 @ SV31 )
            | ( in @ SY270 @ SV87 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[770]) ).

thf(834,plain,
    ! [SV87: $i,SV31: $i] :
      ( ( ~ ! [SY271: $i] :
              ( ~ ( in @ SY271 @ SV31 )
              | ( in @ SY271 @ SV87 ) )
        | ( subset @ SV31 @ SV87 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[771]) ).

thf(835,plain,
    ! [SV89: $i,SV33: $i] :
      ( ( ( ( set_difference @ SV33 @ SV89 )
         != empty_set )
        | ( subset @ SV33 @ SV89 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[773]) ).

thf(836,plain,
    ! [SV89: $i,SV33: $i] :
      ( ( ~ ( subset @ SV33 @ SV89 )
        | ( ( set_difference @ SV33 @ SV89 )
          = empty_set ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[774]) ).

thf(837,plain,
    ! [SV90: $i,SV34: $i] :
      ( ( ( ~ ( ordinal @ SV34 )
          | ~ ( ordinal @ SV90 ) )
        = $true )
      | ( ( ~ ( ~ ( ~ ( ordinal_subset @ SV34 @ SV90 )
                  | ( subset @ SV34 @ SV90 ) )
              | ~ ( ~ ( subset @ SV34 @ SV90 )
                  | ( ordinal_subset @ SV34 @ SV90 ) ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[775]) ).

thf(838,plain,
    ! [SV91: $i,SV35: $i] :
      ( ( ~ ( subset @ SV35 @ ( singleton @ SV91 ) )
        | ( SV35 = empty_set )
        | ( SV35
          = ( singleton @ SV91 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[776]) ).

thf(839,plain,
    ! [SV91: $i,SV35: $i] :
      ( ( ~ ( ( SV35 = empty_set )
            | ( SV35
              = ( singleton @ SV91 ) ) )
        | ( subset @ SV35 @ ( singleton @ SV91 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[777]) ).

thf(840,plain,
    ! [SV119: $i,SV92: $i,SV36: $i] :
      ( ( ( ~ ( ~ ( subset @ SV36 @ SV92 )
              | ~ ( subset @ SV92 @ SV119 ) ) )
        = $false )
      | ( ( subset @ SV36 @ SV119 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[778]) ).

thf(841,plain,
    ! [SV120: $i,SV93: $i,SV37: $i] :
      ( ( ( subset @ SV37 @ SV93 )
        = $false )
      | ( ( subset @ ( set_difference @ SV37 @ SV120 ) @ ( set_difference @ SV93 @ SV120 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[779]) ).

thf(842,plain,
    ! [SV39: $i,SV129: $i] :
      ( ( ( ~ ( relation @ SV129 ) )
        = $true )
      | ( ( ~ ( subset @ SV39 @ SV129 )
          | ~ ( ~ ( subset @ ( relation_dom @ SV39 ) @ ( relation_dom @ SV129 ) )
              | ~ ( subset @ ( relation_rng @ SV39 ) @ ( relation_rng @ SV129 ) ) ) )
        = $true )
      | ( ( relation @ SV39 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[781]) ).

thf(843,plain,
    ! [SV41: $i] :
      ( ( ~ ~ ( ~ ~ ( ~ ( in @ SV41 @ ( sK5_SY221 @ SV41 ) )
                    | ~ ! [SY283: $i,SY284: $i] :
                          ( ~ ~ ( ~ ( in @ SY283 @ ( sK5_SY221 @ SV41 ) )
                                | ~ ( subset @ SY284 @ SY283 ) )
                          | ( in @ SY284 @ ( sK5_SY221 @ SV41 ) ) ) )
              | ~ ! [SY285: $i] :
                    ~ ~ ( ~ ( in @ SY285 @ ( sK5_SY221 @ SV41 ) )
                        | ~ ! [SY286: $i] :
                              ~ ~ ( ~ ( in @ SY286 @ ( sK5_SY221 @ SV41 ) )
                                  | ~ ! [SX4: $i] :
                                        ( ~ ( subset @ SX4 @ SY285 )
                                        | ( in @ SX4 @ SY286 ) ) ) ) )
        | ~ ! [SY288: $i] :
              ~ ~ ( ~ ~ ( ~ ( subset @ SY288 @ ( sK5_SY221 @ SV41 ) )
                        | ~ ~ ( are_equipotent @ SY288 @ ( sK5_SY221 @ SV41 ) ) )
                  | ~ ~ ( in @ SY288 @ ( sK5_SY221 @ SV41 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[783]) ).

thf(844,plain,
    ! [SV96: $i,SV42: $i] :
      ( ( ~ ( subset @ SV42 @ ( singleton @ SV96 ) )
        | ( SV42 = empty_set )
        | ( SV42
          = ( singleton @ SV96 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[784]) ).

thf(845,plain,
    ! [SV96: $i,SV42: $i] :
      ( ( ~ ( ( SV42 = empty_set )
            | ( SV42
              = ( singleton @ SV96 ) ) )
        | ( subset @ SV42 @ ( singleton @ SV96 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[785]) ).

thf(846,plain,
    ! [SV97: $i,SV43: $i] :
      ( ( ~ ( proper_subset @ SV43 @ SV97 )
        | ~ ( ~ ( subset @ SV43 @ SV97 )
            | ~ ( ( SV43 != SV97 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[786]) ).

thf(847,plain,
    ! [SV97: $i,SV43: $i] :
      ( ( ~ ~ ( ~ ( subset @ SV43 @ SV97 )
              | ~ ( ( SV43 != SV97 ) ) )
        | ( proper_subset @ SV43 @ SV97 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[787]) ).

thf(848,plain,
    ! [SV98: $i,SV44: $i] :
      ( ( ( SV44 != SV98 )
        | ~ ( ~ ( subset @ SV44 @ SV98 )
            | ~ ( subset @ SV98 @ SV44 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[788]) ).

thf(849,plain,
    ! [SV98: $i,SV44: $i] :
      ( ( ~ ~ ( ~ ( subset @ SV44 @ SV98 )
              | ~ ( subset @ SV98 @ SV44 ) )
        | ( SV44 = SV98 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[789]) ).

thf(850,plain,
    ! [SV99: $i,SV45: $i,SV121: $i] :
      ( ( ( relation @ SV121 )
        = $false )
      | ( ( subset @ ( fiber @ ( relation_restriction @ SV121 @ SV45 ) @ SV99 ) @ ( fiber @ SV121 @ SV99 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[790]) ).

thf(851,plain,
    ! [SV100: $i,SV46: $i,SV122: $i] :
      ( ( ( relation @ SV122 )
        = $false )
      | ( ( ~ ( subset @ SV46 @ SV100 )
          | ( subset @ ( relation_inverse_image @ SV122 @ SV46 ) @ ( relation_inverse_image @ SV122 @ SV100 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[791]) ).

thf(852,plain,
    ! [SV49: $i,SV130: $i] :
      ( ( ( ~ ( relation @ SV130 ) )
        = $true )
      | ( ( subset @ ( relation_rng @ ( relation_composition @ SV49 @ SV130 ) ) @ ( relation_rng @ SV130 ) )
        = $true )
      | ( ( relation @ SV49 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[793]) ).

thf(853,plain,
    ! [SV102: $i,SV50: $i,SV123: $i] :
      ( ( ( relation_of2_as_subset @ SV123 @ SV50 @ SV102 )
        = $false )
      | ( ( element @ SV123 @ ( powerset @ ( cartesian_product2 @ SV50 @ SV102 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[794]) ).

thf(854,plain,
    ! [SV131: $i,SV124: $i,SV103: $i,SV51: $i] :
      ( ( ( ~ ~ ( ~ ( subset @ SV51 @ SV103 )
                | ~ ( subset @ SV124 @ SV131 ) ) )
        = $true )
      | ( ( subset @ ( cartesian_product2 @ SV51 @ SV124 ) @ ( cartesian_product2 @ SV103 @ SV131 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[795]) ).

thf(855,plain,
    ! [SV125: $i,SV105: $i,SV53: $i] :
      ( ( ( subset @ SV53 @ SV105 )
        = $false )
      | ( ( ~ ( ~ ( subset @ ( cartesian_product2 @ SV53 @ SV125 ) @ ( cartesian_product2 @ SV105 @ SV125 ) )
              | ~ ( subset @ ( cartesian_product2 @ SV125 @ SV53 ) @ ( cartesian_product2 @ SV125 @ SV105 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[797]) ).

thf(856,plain,
    ! [SV55: $i] :
      ( ( ~ ~ ( ~ ~ ( ~ ( in @ SV55 @ ( sK6_SY246 @ SV55 ) )
                    | ~ ! [SY290: $i,SY291: $i] :
                          ( ~ ~ ( ~ ( in @ SY290 @ ( sK6_SY246 @ SV55 ) )
                                | ~ ( subset @ SY291 @ SY290 ) )
                          | ( in @ SY291 @ ( sK6_SY246 @ SV55 ) ) ) )
              | ~ ! [SY292: $i] :
                    ( ~ ( in @ SY292 @ ( sK6_SY246 @ SV55 ) )
                    | ( in @ ( powerset @ SY292 ) @ ( sK6_SY246 @ SV55 ) ) ) )
        | ~ ! [SY293: $i] :
              ~ ~ ( ~ ~ ( ~ ( subset @ SY293 @ ( sK6_SY246 @ SV55 ) )
                        | ~ ~ ( are_equipotent @ SY293 @ ( sK6_SY246 @ SV55 ) ) )
                  | ~ ~ ( in @ SY293 @ ( sK6_SY246 @ SV55 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[799]) ).

thf(857,plain,
    ! [SV108: $i,SV57: $i] :
      ( ( ~ ( subset @ ( singleton @ SV57 ) @ SV108 )
        | ( in @ SV57 @ SV108 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[801]) ).

thf(858,plain,
    ! [SV108: $i,SV57: $i] :
      ( ( ~ ( in @ SV57 @ SV108 )
        | ( subset @ ( singleton @ SV57 ) @ SV108 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[802]) ).

thf(859,plain,
    ! [SV109: $i,SV58: $i,SV126: $i,SV132: $i] :
      ( ( ( ~ ( relation_of2_as_subset @ SV132 @ SV126 @ SV58 ) )
        = $true )
      | ( ( ~ ( subset @ ( relation_rng @ SV132 ) @ SV109 )
          | ( relation_of2_as_subset @ SV132 @ SV126 @ SV109 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[803]) ).

thf(860,plain,
    ! [SV59: $i,SV133: $i] :
      ( ( ( ~ ( relation @ SV133 ) )
        = $true )
      | ( ( subset @ ( relation_dom @ ( relation_composition @ SV59 @ SV133 ) ) @ ( relation_dom @ SV59 ) )
        = $true )
      | ( ( relation @ SV59 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[804]) ).

thf(861,plain,
    ! [SV127: $i,SV110: $i,SV60: $i] :
      ( ( ( subset @ SV60 @ SV110 )
        = $false )
      | ( ( ( in @ SV127 @ SV60 )
          | ( subset @ SV60 @ ( set_difference @ SV110 @ ( singleton @ SV127 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[805]) ).

thf(862,plain,
    ! [SV6: $i] :
      ( ( ( in @ ( sK7_SY166 @ SV6 ) @ SV6 )
        = $true )
      | ( ( ordinal @ SV6 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[806]) ).

thf(863,plain,
    ! [SV6: $i] :
      ( ( ( ~ ( ordinal @ ( sK7_SY166 @ SV6 ) )
          | ~ ( subset @ ( sK7_SY166 @ SV6 ) @ SV6 ) )
        = $true )
      | ( ( ordinal @ SV6 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[807]) ).

thf(864,plain,
    ! [SV66: $i,SV8: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV8 ) @ SV66 ) )
        = $true )
      | ( ( in @ SV8 @ SV66 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[808]) ).

thf(865,plain,
    ! [SV66: $i,SV8: $i] :
      ( ( ( ~ ( in @ SV8 @ SV66 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV8 ) @ SV66 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[809]) ).

thf(866,plain,
    ! [SV67: $i,SV9: $i] :
      ( ( ( subset @ SV9 @ SV67 )
        = $false )
      | ( ( ~ ( proper_subset @ SV67 @ SV9 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[810]) ).

thf(867,plain,
    ! [SV69: $i,SV11: $i,SV111: $i] :
      ( ( ~ ( relation_of2 @ SV111 @ SV11 @ SV69 )
        | ( subset @ SV111 @ ( cartesian_product2 @ SV11 @ SV69 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[811]) ).

thf(868,plain,
    ! [SV69: $i,SV11: $i,SV111: $i] :
      ( ( ~ ( subset @ SV111 @ ( cartesian_product2 @ SV11 @ SV69 ) )
        | ( relation_of2 @ SV111 @ SV11 @ SV69 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[812]) ).

thf(869,plain,
    ! [SV12: $i,SV70: $i] :
      ( ( ( SV70
         != ( powerset @ SV12 ) )
        = $true )
      | ( ( ! [SY260: $i] :
              ~ ( ~ ( ~ ( in @ SY260 @ SV70 )
                    | ( subset @ SY260 @ SV12 ) )
                | ~ ( ~ ( subset @ SY260 @ SV12 )
                    | ( in @ SY260 @ SV70 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[813]) ).

thf(870,plain,
    ! [SV12: $i,SV70: $i] :
      ( ( ( ~ ! [SY261: $i] :
                ~ ( ~ ( ~ ( in @ SY261 @ SV70 )
                      | ( subset @ SY261 @ SV12 ) )
                  | ~ ( ~ ( subset @ SY261 @ SV12 )
                      | ( in @ SY261 @ SV70 ) ) ) )
        = $true )
      | ( ( SV70
          = ( powerset @ SV12 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[814]) ).

thf(871,plain,
    ! [SV112: $i,SV71: $i,SV13: $i] :
      ( ( ( ~ ( subset @ SV13 @ SV71 )
          | ~ ( subset @ SV112 @ SV71 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV13 @ SV112 ) @ SV71 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[815]) ).

thf(872,plain,
    ! [SV16: $i,SV74: $i] :
      ( ( ( ~ ( subset @ ( relation_field @ ( relation_restriction @ SV74 @ SV16 ) ) @ ( relation_field @ SV74 ) ) )
        = $false )
      | ( ( relation @ SV74 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[816]) ).

thf(873,plain,
    ! [SV16: $i,SV74: $i] :
      ( ( ( ~ ( subset @ ( relation_field @ ( relation_restriction @ SV74 @ SV16 ) ) @ SV16 ) )
        = $false )
      | ( ( relation @ SV74 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[816]) ).

thf(874,plain,
    ! [SV18: $i] :
      ( ( ( epsilon_transitive @ SV18 )
        = $false )
      | ( ( ! [SY183: $i] :
              ( ~ ( in @ SY183 @ SV18 )
              | ( subset @ SY183 @ SV18 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[818]) ).

thf(875,plain,
    ! [SV18: $i] :
      ( ( ( ! [SY184: $i] :
              ( ~ ( in @ SY184 @ SV18 )
              | ( subset @ SY184 @ SV18 ) ) )
        = $false )
      | ( ( epsilon_transitive @ SV18 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[819]) ).

thf(876,plain,
    ! [SV113: $i,SV76: $i,SV19: $i] :
      ( ( ( ~ ( subset @ SV19 @ SV76 )
          | ~ ( subset @ SV19 @ SV113 ) )
        = $true )
      | ( ( subset @ SV19 @ ( set_intersection2 @ SV76 @ SV113 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[820]) ).

thf(877,plain,
    ! [SV78: $i,SV21: $i,SV114: $i] :
      ( ( ~ ( relation_of2_as_subset @ SV114 @ SV21 @ SV78 )
        | ( relation_of2 @ SV114 @ SV21 @ SV78 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[821]) ).

thf(878,plain,
    ! [SV78: $i,SV21: $i,SV114: $i] :
      ( ( ~ ( relation_of2 @ SV114 @ SV21 @ SV78 )
        | ( relation_of2_as_subset @ SV114 @ SV21 @ SV78 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[822]) ).

thf(879,plain,
    ! [SV115: $i,SV79: $i,SV22: $i] :
      ( ( ~ ( subset @ ( unordered_pair @ SV22 @ SV79 ) @ SV115 )
        | ~ ( ~ ( in @ SV22 @ SV115 )
            | ~ ( in @ SV79 @ SV115 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[823]) ).

thf(880,plain,
    ! [SV79: $i,SV115: $i,SV22: $i] :
      ( ( ~ ~ ( ~ ( in @ SV22 @ SV115 )
              | ~ ( in @ SV79 @ SV115 ) )
        | ( subset @ ( unordered_pair @ SV22 @ SV79 ) @ SV115 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[824]) ).

thf(881,plain,
    ! [SV82: $i,SV25: $i] :
      ( ( ( ( set_difference @ SV25 @ SV82 )
         != empty_set )
        = $true )
      | ( ( subset @ SV25 @ SV82 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[825]) ).

thf(882,plain,
    ! [SV82: $i,SV25: $i] :
      ( ( ( ~ ( subset @ SV25 @ SV82 ) )
        = $true )
      | ( ( ( set_difference @ SV25 @ SV82 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[826]) ).

thf(883,plain,
    ! [SV116: $i,SV83: $i,SV26: $i] :
      ( ( ( ~ ( subset @ SV26 @ SV83 )
          | ~ ( disjoint @ SV83 @ SV116 ) )
        = $true )
      | ( ( disjoint @ SV26 @ SV116 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[827]) ).

thf(884,plain,
    ! [SV84: $i,SV27: $i,SV117: $i] :
      ( ( ( ~ ( subset @ ( relation_dom @ SV117 ) @ SV27 )
          | ~ ( subset @ ( relation_rng @ SV117 ) @ SV84 ) )
        = $false )
      | ( ( relation_of2_as_subset @ SV117 @ SV27 @ SV84 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[828]) ).

thf(885,plain,
    ! [SV29: $i,SV128: $i] :
      ( ( ( relation @ SV128 )
        = $false )
      | ( ( ~ ( ~ ( ~ ( subset @ SV29 @ SV128 )
                  | ! [SY295: $i,SY296: $i] :
                      ( ~ ( in @ ( ordered_pair @ SY295 @ SY296 ) @ SV29 )
                      | ( in @ ( ordered_pair @ SY295 @ SY296 ) @ SV128 ) ) )
              | ~ ( ~ ! [SY297: $i,SY298: $i] :
                        ( ~ ( in @ ( ordered_pair @ SY297 @ SY298 ) @ SV29 )
                        | ( in @ ( ordered_pair @ SY297 @ SY298 ) @ SV128 ) )
                  | ( subset @ SV29 @ SV128 ) ) ) )
        = $true )
      | ( ( relation @ SV29 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[830]) ).

thf(886,plain,
    ! [SV86: $i,SV30: $i] :
      ( ( ( ~ ( element @ SV30 @ ( powerset @ SV86 ) ) )
        = $true )
      | ( ( subset @ SV30 @ SV86 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[831]) ).

thf(887,plain,
    ! [SV86: $i,SV30: $i] :
      ( ( ( ~ ( subset @ SV30 @ SV86 ) )
        = $true )
      | ( ( element @ SV30 @ ( powerset @ SV86 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[832]) ).

thf(888,plain,
    ! [SV87: $i,SV31: $i] :
      ( ( ( ~ ( subset @ SV31 @ SV87 ) )
        = $true )
      | ( ( ! [SY270: $i] :
              ( ~ ( in @ SY270 @ SV31 )
              | ( in @ SY270 @ SV87 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[833]) ).

thf(889,plain,
    ! [SV87: $i,SV31: $i] :
      ( ( ( ~ ! [SY271: $i] :
                ( ~ ( in @ SY271 @ SV31 )
                | ( in @ SY271 @ SV87 ) ) )
        = $true )
      | ( ( subset @ SV31 @ SV87 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[834]) ).

thf(890,plain,
    ! [SV89: $i,SV33: $i] :
      ( ( ( ( set_difference @ SV33 @ SV89 )
         != empty_set )
        = $true )
      | ( ( subset @ SV33 @ SV89 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[835]) ).

thf(891,plain,
    ! [SV89: $i,SV33: $i] :
      ( ( ( ~ ( subset @ SV33 @ SV89 ) )
        = $true )
      | ( ( ( set_difference @ SV33 @ SV89 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[836]) ).

thf(892,plain,
    ! [SV90: $i,SV34: $i] :
      ( ( ( ~ ( ordinal @ SV34 ) )
        = $true )
      | ( ( ~ ( ordinal @ SV90 ) )
        = $true )
      | ( ( ~ ( ~ ( ~ ( ordinal_subset @ SV34 @ SV90 )
                  | ( subset @ SV34 @ SV90 ) )
              | ~ ( ~ ( subset @ SV34 @ SV90 )
                  | ( ordinal_subset @ SV34 @ SV90 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[837]) ).

thf(893,plain,
    ! [SV91: $i,SV35: $i] :
      ( ( ( ~ ( subset @ SV35 @ ( singleton @ SV91 ) ) )
        = $true )
      | ( ( ( SV35 = empty_set )
          | ( SV35
            = ( singleton @ SV91 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[838]) ).

thf(894,plain,
    ! [SV91: $i,SV35: $i] :
      ( ( ( ~ ( ( SV35 = empty_set )
              | ( SV35
                = ( singleton @ SV91 ) ) ) )
        = $true )
      | ( ( subset @ SV35 @ ( singleton @ SV91 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[839]) ).

thf(895,plain,
    ! [SV119: $i,SV92: $i,SV36: $i] :
      ( ( ( ~ ( subset @ SV36 @ SV92 )
          | ~ ( subset @ SV92 @ SV119 ) )
        = $true )
      | ( ( subset @ SV36 @ SV119 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[840]) ).

thf(896,plain,
    ! [SV39: $i,SV129: $i] :
      ( ( ( relation @ SV129 )
        = $false )
      | ( ( ~ ( subset @ SV39 @ SV129 )
          | ~ ( ~ ( subset @ ( relation_dom @ SV39 ) @ ( relation_dom @ SV129 ) )
              | ~ ( subset @ ( relation_rng @ SV39 ) @ ( relation_rng @ SV129 ) ) ) )
        = $true )
      | ( ( relation @ SV39 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[842]) ).

thf(897,plain,
    ! [SV41: $i] :
      ( ( ~ ~ ( ~ ~ ( ~ ( in @ SV41 @ ( sK5_SY221 @ SV41 ) )
                    | ~ ! [SY283: $i,SY284: $i] :
                          ( ~ ~ ( ~ ( in @ SY283 @ ( sK5_SY221 @ SV41 ) )
                                | ~ ( subset @ SY284 @ SY283 ) )
                          | ( in @ SY284 @ ( sK5_SY221 @ SV41 ) ) ) )
              | ~ ! [SY285: $i] :
                    ~ ~ ( ~ ( in @ SY285 @ ( sK5_SY221 @ SV41 ) )
                        | ~ ! [SY286: $i] :
                              ~ ~ ( ~ ( in @ SY286 @ ( sK5_SY221 @ SV41 ) )
                                  | ~ ! [SX4: $i] :
                                        ( ~ ( subset @ SX4 @ SY285 )
                                        | ( in @ SX4 @ SY286 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[843]) ).

thf(898,plain,
    ! [SV41: $i] :
      ( ( ~ ! [SY288: $i] :
              ~ ~ ( ~ ~ ( ~ ( subset @ SY288 @ ( sK5_SY221 @ SV41 ) )
                        | ~ ~ ( are_equipotent @ SY288 @ ( sK5_SY221 @ SV41 ) ) )
                  | ~ ~ ( in @ SY288 @ ( sK5_SY221 @ SV41 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[843]) ).

thf(899,plain,
    ! [SV96: $i,SV42: $i] :
      ( ( ( ~ ( subset @ SV42 @ ( singleton @ SV96 ) ) )
        = $true )
      | ( ( ( SV42 = empty_set )
          | ( SV42
            = ( singleton @ SV96 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[844]) ).

thf(900,plain,
    ! [SV96: $i,SV42: $i] :
      ( ( ( ~ ( ( SV42 = empty_set )
              | ( SV42
                = ( singleton @ SV96 ) ) ) )
        = $true )
      | ( ( subset @ SV42 @ ( singleton @ SV96 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[845]) ).

thf(901,plain,
    ! [SV97: $i,SV43: $i] :
      ( ( ( ~ ( proper_subset @ SV43 @ SV97 ) )
        = $true )
      | ( ( ~ ( ~ ( subset @ SV43 @ SV97 )
              | ~ ( ( SV43 != SV97 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[846]) ).

thf(902,plain,
    ! [SV97: $i,SV43: $i] :
      ( ( ( ~ ~ ( ~ ( subset @ SV43 @ SV97 )
                | ~ ( ( SV43 != SV97 ) ) ) )
        = $true )
      | ( ( proper_subset @ SV43 @ SV97 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[847]) ).

thf(903,plain,
    ! [SV98: $i,SV44: $i] :
      ( ( ( SV44 != SV98 )
        = $true )
      | ( ( ~ ( ~ ( subset @ SV44 @ SV98 )
              | ~ ( subset @ SV98 @ SV44 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[848]) ).

thf(904,plain,
    ! [SV98: $i,SV44: $i] :
      ( ( ( ~ ~ ( ~ ( subset @ SV44 @ SV98 )
                | ~ ( subset @ SV98 @ SV44 ) ) )
        = $true )
      | ( ( SV44 = SV98 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[849]) ).

thf(905,plain,
    ! [SV122: $i,SV100: $i,SV46: $i] :
      ( ( ( ~ ( subset @ SV46 @ SV100 ) )
        = $true )
      | ( ( subset @ ( relation_inverse_image @ SV122 @ SV46 ) @ ( relation_inverse_image @ SV122 @ SV100 ) )
        = $true )
      | ( ( relation @ SV122 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[851]) ).

thf(906,plain,
    ! [SV49: $i,SV130: $i] :
      ( ( ( relation @ SV130 )
        = $false )
      | ( ( subset @ ( relation_rng @ ( relation_composition @ SV49 @ SV130 ) ) @ ( relation_rng @ SV130 ) )
        = $true )
      | ( ( relation @ SV49 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[852]) ).

thf(907,plain,
    ! [SV131: $i,SV124: $i,SV103: $i,SV51: $i] :
      ( ( ( ~ ( ~ ( subset @ SV51 @ SV103 )
              | ~ ( subset @ SV124 @ SV131 ) ) )
        = $false )
      | ( ( subset @ ( cartesian_product2 @ SV51 @ SV124 ) @ ( cartesian_product2 @ SV103 @ SV131 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[854]) ).

thf(908,plain,
    ! [SV105: $i,SV125: $i,SV53: $i] :
      ( ( ( ~ ( subset @ ( cartesian_product2 @ SV53 @ SV125 ) @ ( cartesian_product2 @ SV105 @ SV125 ) )
          | ~ ( subset @ ( cartesian_product2 @ SV125 @ SV53 ) @ ( cartesian_product2 @ SV125 @ SV105 ) ) )
        = $false )
      | ( ( subset @ SV53 @ SV105 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[855]) ).

thf(909,plain,
    ! [SV55: $i] :
      ( ( ~ ~ ( ~ ~ ( ~ ( in @ SV55 @ ( sK6_SY246 @ SV55 ) )
                    | ~ ! [SY290: $i,SY291: $i] :
                          ( ~ ~ ( ~ ( in @ SY290 @ ( sK6_SY246 @ SV55 ) )
                                | ~ ( subset @ SY291 @ SY290 ) )
                          | ( in @ SY291 @ ( sK6_SY246 @ SV55 ) ) ) )
              | ~ ! [SY292: $i] :
                    ( ~ ( in @ SY292 @ ( sK6_SY246 @ SV55 ) )
                    | ( in @ ( powerset @ SY292 ) @ ( sK6_SY246 @ SV55 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[856]) ).

thf(910,plain,
    ! [SV55: $i] :
      ( ( ~ ! [SY293: $i] :
              ~ ~ ( ~ ~ ( ~ ( subset @ SY293 @ ( sK6_SY246 @ SV55 ) )
                        | ~ ~ ( are_equipotent @ SY293 @ ( sK6_SY246 @ SV55 ) ) )
                  | ~ ~ ( in @ SY293 @ ( sK6_SY246 @ SV55 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[856]) ).

thf(911,plain,
    ! [SV108: $i,SV57: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV57 ) @ SV108 ) )
        = $true )
      | ( ( in @ SV57 @ SV108 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[857]) ).

thf(912,plain,
    ! [SV108: $i,SV57: $i] :
      ( ( ( ~ ( in @ SV57 @ SV108 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV57 ) @ SV108 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[858]) ).

thf(913,plain,
    ! [SV109: $i,SV58: $i,SV126: $i,SV132: $i] :
      ( ( ( relation_of2_as_subset @ SV132 @ SV126 @ SV58 )
        = $false )
      | ( ( ~ ( subset @ ( relation_rng @ SV132 ) @ SV109 )
          | ( relation_of2_as_subset @ SV132 @ SV126 @ SV109 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[859]) ).

thf(914,plain,
    ! [SV59: $i,SV133: $i] :
      ( ( ( relation @ SV133 )
        = $false )
      | ( ( subset @ ( relation_dom @ ( relation_composition @ SV59 @ SV133 ) ) @ ( relation_dom @ SV59 ) )
        = $true )
      | ( ( relation @ SV59 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[860]) ).

thf(915,plain,
    ! [SV110: $i,SV60: $i,SV127: $i] :
      ( ( ( in @ SV127 @ SV60 )
        = $true )
      | ( ( subset @ SV60 @ ( set_difference @ SV110 @ ( singleton @ SV127 ) ) )
        = $true )
      | ( ( subset @ SV60 @ SV110 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[861]) ).

thf(916,plain,
    ! [SV6: $i] :
      ( ( ( ~ ( ordinal @ ( sK7_SY166 @ SV6 ) ) )
        = $true )
      | ( ( ~ ( subset @ ( sK7_SY166 @ SV6 ) @ SV6 ) )
        = $true )
      | ( ( ordinal @ SV6 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[863]) ).

thf(917,plain,
    ! [SV66: $i,SV8: $i] :
      ( ( ( subset @ ( singleton @ SV8 ) @ SV66 )
        = $false )
      | ( ( in @ SV8 @ SV66 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[864]) ).

thf(918,plain,
    ! [SV66: $i,SV8: $i] :
      ( ( ( in @ SV8 @ SV66 )
        = $false )
      | ( ( subset @ ( singleton @ SV8 ) @ SV66 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[865]) ).

thf(919,plain,
    ! [SV9: $i,SV67: $i] :
      ( ( ( proper_subset @ SV67 @ SV9 )
        = $false )
      | ( ( subset @ SV9 @ SV67 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[866]) ).

thf(920,plain,
    ! [SV69: $i,SV11: $i,SV111: $i] :
      ( ( ( ~ ( relation_of2 @ SV111 @ SV11 @ SV69 ) )
        = $true )
      | ( ( subset @ SV111 @ ( cartesian_product2 @ SV11 @ SV69 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[867]) ).

thf(921,plain,
    ! [SV69: $i,SV11: $i,SV111: $i] :
      ( ( ( ~ ( subset @ SV111 @ ( cartesian_product2 @ SV11 @ SV69 ) ) )
        = $true )
      | ( ( relation_of2 @ SV111 @ SV11 @ SV69 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[868]) ).

thf(922,plain,
    ! [SV12: $i,SV70: $i] :
      ( ( ( SV70
          = ( powerset @ SV12 ) )
        = $false )
      | ( ( ! [SY260: $i] :
              ~ ( ~ ( ~ ( in @ SY260 @ SV70 )
                    | ( subset @ SY260 @ SV12 ) )
                | ~ ( ~ ( subset @ SY260 @ SV12 )
                    | ( in @ SY260 @ SV70 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[869]) ).

thf(923,plain,
    ! [SV12: $i,SV70: $i] :
      ( ( ( ! [SY261: $i] :
              ~ ( ~ ( ~ ( in @ SY261 @ SV70 )
                    | ( subset @ SY261 @ SV12 ) )
                | ~ ( ~ ( subset @ SY261 @ SV12 )
                    | ( in @ SY261 @ SV70 ) ) ) )
        = $false )
      | ( ( SV70
          = ( powerset @ SV12 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[870]) ).

thf(924,plain,
    ! [SV112: $i,SV71: $i,SV13: $i] :
      ( ( ( ~ ( subset @ SV13 @ SV71 ) )
        = $true )
      | ( ( ~ ( subset @ SV112 @ SV71 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV13 @ SV112 ) @ SV71 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[871]) ).

thf(925,plain,
    ! [SV16: $i,SV74: $i] :
      ( ( ( subset @ ( relation_field @ ( relation_restriction @ SV74 @ SV16 ) ) @ ( relation_field @ SV74 ) )
        = $true )
      | ( ( relation @ SV74 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[872]) ).

thf(926,plain,
    ! [SV16: $i,SV74: $i] :
      ( ( ( subset @ ( relation_field @ ( relation_restriction @ SV74 @ SV16 ) ) @ SV16 )
        = $true )
      | ( ( relation @ SV74 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[873]) ).

thf(927,plain,
    ! [SV18: $i,SV134: $i] :
      ( ( ( ~ ( in @ SV134 @ SV18 )
          | ( subset @ SV134 @ SV18 ) )
        = $true )
      | ( ( epsilon_transitive @ SV18 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[874]) ).

thf(928,plain,
    ! [SV18: $i] :
      ( ( ( ~ ( in @ ( sK9_SY184 @ SV18 ) @ SV18 )
          | ( subset @ ( sK9_SY184 @ SV18 ) @ SV18 ) )
        = $false )
      | ( ( epsilon_transitive @ SV18 )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[875]) ).

thf(929,plain,
    ! [SV113: $i,SV76: $i,SV19: $i] :
      ( ( ( ~ ( subset @ SV19 @ SV76 ) )
        = $true )
      | ( ( ~ ( subset @ SV19 @ SV113 ) )
        = $true )
      | ( ( subset @ SV19 @ ( set_intersection2 @ SV76 @ SV113 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[876]) ).

thf(930,plain,
    ! [SV78: $i,SV21: $i,SV114: $i] :
      ( ( ( ~ ( relation_of2_as_subset @ SV114 @ SV21 @ SV78 ) )
        = $true )
      | ( ( relation_of2 @ SV114 @ SV21 @ SV78 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[877]) ).

thf(931,plain,
    ! [SV78: $i,SV21: $i,SV114: $i] :
      ( ( ( ~ ( relation_of2 @ SV114 @ SV21 @ SV78 ) )
        = $true )
      | ( ( relation_of2_as_subset @ SV114 @ SV21 @ SV78 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[878]) ).

thf(932,plain,
    ! [SV115: $i,SV79: $i,SV22: $i] :
      ( ( ( ~ ( subset @ ( unordered_pair @ SV22 @ SV79 ) @ SV115 ) )
        = $true )
      | ( ( ~ ( ~ ( in @ SV22 @ SV115 )
              | ~ ( in @ SV79 @ SV115 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[879]) ).

thf(933,plain,
    ! [SV79: $i,SV115: $i,SV22: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV22 @ SV115 )
                | ~ ( in @ SV79 @ SV115 ) ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV22 @ SV79 ) @ SV115 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[880]) ).

thf(934,plain,
    ! [SV82: $i,SV25: $i] :
      ( ( ( ( set_difference @ SV25 @ SV82 )
          = empty_set )
        = $false )
      | ( ( subset @ SV25 @ SV82 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[881]) ).

thf(935,plain,
    ! [SV82: $i,SV25: $i] :
      ( ( ( subset @ SV25 @ SV82 )
        = $false )
      | ( ( ( set_difference @ SV25 @ SV82 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[882]) ).

thf(936,plain,
    ! [SV116: $i,SV83: $i,SV26: $i] :
      ( ( ( ~ ( subset @ SV26 @ SV83 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV83 @ SV116 ) )
        = $true )
      | ( ( disjoint @ SV26 @ SV116 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[883]) ).

thf(937,plain,
    ! [SV84: $i,SV27: $i,SV117: $i] :
      ( ( ( ~ ( subset @ ( relation_dom @ SV117 ) @ SV27 ) )
        = $false )
      | ( ( relation_of2_as_subset @ SV117 @ SV27 @ SV84 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[884]) ).

thf(938,plain,
    ! [SV27: $i,SV84: $i,SV117: $i] :
      ( ( ( ~ ( subset @ ( relation_rng @ SV117 ) @ SV84 ) )
        = $false )
      | ( ( relation_of2_as_subset @ SV117 @ SV27 @ SV84 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[884]) ).

thf(939,plain,
    ! [SV128: $i,SV29: $i] :
      ( ( ( ~ ( ~ ( subset @ SV29 @ SV128 )
              | ! [SY295: $i,SY296: $i] :
                  ( ~ ( in @ ( ordered_pair @ SY295 @ SY296 ) @ SV29 )
                  | ( in @ ( ordered_pair @ SY295 @ SY296 ) @ SV128 ) ) )
          | ~ ( ~ ! [SY297: $i,SY298: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY297 @ SY298 ) @ SV29 )
                    | ( in @ ( ordered_pair @ SY297 @ SY298 ) @ SV128 ) )
              | ( subset @ SV29 @ SV128 ) ) )
        = $false )
      | ( ( relation @ SV128 )
        = $false )
      | ( ( relation @ SV29 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[885]) ).

thf(940,plain,
    ! [SV86: $i,SV30: $i] :
      ( ( ( element @ SV30 @ ( powerset @ SV86 ) )
        = $false )
      | ( ( subset @ SV30 @ SV86 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[886]) ).

thf(941,plain,
    ! [SV86: $i,SV30: $i] :
      ( ( ( subset @ SV30 @ SV86 )
        = $false )
      | ( ( element @ SV30 @ ( powerset @ SV86 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[887]) ).

thf(942,plain,
    ! [SV87: $i,SV31: $i] :
      ( ( ( subset @ SV31 @ SV87 )
        = $false )
      | ( ( ! [SY270: $i] :
              ( ~ ( in @ SY270 @ SV31 )
              | ( in @ SY270 @ SV87 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[888]) ).

thf(943,plain,
    ! [SV87: $i,SV31: $i] :
      ( ( ( ! [SY271: $i] :
              ( ~ ( in @ SY271 @ SV31 )
              | ( in @ SY271 @ SV87 ) ) )
        = $false )
      | ( ( subset @ SV31 @ SV87 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[889]) ).

thf(944,plain,
    ! [SV89: $i,SV33: $i] :
      ( ( ( ( set_difference @ SV33 @ SV89 )
          = empty_set )
        = $false )
      | ( ( subset @ SV33 @ SV89 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[890]) ).

thf(945,plain,
    ! [SV89: $i,SV33: $i] :
      ( ( ( subset @ SV33 @ SV89 )
        = $false )
      | ( ( ( set_difference @ SV33 @ SV89 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[891]) ).

thf(946,plain,
    ! [SV90: $i,SV34: $i] :
      ( ( ( ordinal @ SV34 )
        = $false )
      | ( ( ~ ( ordinal @ SV90 ) )
        = $true )
      | ( ( ~ ( ~ ( ~ ( ordinal_subset @ SV34 @ SV90 )
                  | ( subset @ SV34 @ SV90 ) )
              | ~ ( ~ ( subset @ SV34 @ SV90 )
                  | ( ordinal_subset @ SV34 @ SV90 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[892]) ).

thf(947,plain,
    ! [SV91: $i,SV35: $i] :
      ( ( ( subset @ SV35 @ ( singleton @ SV91 ) )
        = $false )
      | ( ( ( SV35 = empty_set )
          | ( SV35
            = ( singleton @ SV91 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[893]) ).

thf(948,plain,
    ! [SV91: $i,SV35: $i] :
      ( ( ( ( SV35 = empty_set )
          | ( SV35
            = ( singleton @ SV91 ) ) )
        = $false )
      | ( ( subset @ SV35 @ ( singleton @ SV91 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[894]) ).

thf(949,plain,
    ! [SV119: $i,SV92: $i,SV36: $i] :
      ( ( ( ~ ( subset @ SV36 @ SV92 ) )
        = $true )
      | ( ( ~ ( subset @ SV92 @ SV119 ) )
        = $true )
      | ( ( subset @ SV36 @ SV119 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[895]) ).

thf(950,plain,
    ! [SV129: $i,SV39: $i] :
      ( ( ( ~ ( subset @ SV39 @ SV129 ) )
        = $true )
      | ( ( ~ ( ~ ( subset @ ( relation_dom @ SV39 ) @ ( relation_dom @ SV129 ) )
              | ~ ( subset @ ( relation_rng @ SV39 ) @ ( relation_rng @ SV129 ) ) ) )
        = $true )
      | ( ( relation @ SV129 )
        = $false )
      | ( ( relation @ SV39 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[896]) ).

thf(951,plain,
    ! [SV41: $i] :
      ( ( ~ ( ~ ~ ( ~ ( in @ SV41 @ ( sK5_SY221 @ SV41 ) )
                  | ~ ! [SY283: $i,SY284: $i] :
                        ( ~ ~ ( ~ ( in @ SY283 @ ( sK5_SY221 @ SV41 ) )
                              | ~ ( subset @ SY284 @ SY283 ) )
                        | ( in @ SY284 @ ( sK5_SY221 @ SV41 ) ) ) )
            | ~ ! [SY285: $i] :
                  ~ ~ ( ~ ( in @ SY285 @ ( sK5_SY221 @ SV41 ) )
                      | ~ ! [SY286: $i] :
                            ~ ~ ( ~ ( in @ SY286 @ ( sK5_SY221 @ SV41 ) )
                                | ~ ! [SX4: $i] :
                                      ( ~ ( subset @ SX4 @ SY285 )
                                      | ( in @ SX4 @ SY286 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[897]) ).

thf(952,plain,
    ! [SV41: $i] :
      ( ( ! [SY288: $i] :
            ~ ~ ( ~ ~ ( ~ ( subset @ SY288 @ ( sK5_SY221 @ SV41 ) )
                      | ~ ~ ( are_equipotent @ SY288 @ ( sK5_SY221 @ SV41 ) ) )
                | ~ ~ ( in @ SY288 @ ( sK5_SY221 @ SV41 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[898]) ).

thf(953,plain,
    ! [SV96: $i,SV42: $i] :
      ( ( ( subset @ SV42 @ ( singleton @ SV96 ) )
        = $false )
      | ( ( ( SV42 = empty_set )
          | ( SV42
            = ( singleton @ SV96 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[899]) ).

thf(954,plain,
    ! [SV96: $i,SV42: $i] :
      ( ( ( ( SV42 = empty_set )
          | ( SV42
            = ( singleton @ SV96 ) ) )
        = $false )
      | ( ( subset @ SV42 @ ( singleton @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[900]) ).

thf(955,plain,
    ! [SV97: $i,SV43: $i] :
      ( ( ( proper_subset @ SV43 @ SV97 )
        = $false )
      | ( ( ~ ( ~ ( subset @ SV43 @ SV97 )
              | ~ ( ( SV43 != SV97 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[901]) ).

thf(956,plain,
    ! [SV97: $i,SV43: $i] :
      ( ( ( ~ ( ~ ( subset @ SV43 @ SV97 )
              | ~ ( ( SV43 != SV97 ) ) ) )
        = $false )
      | ( ( proper_subset @ SV43 @ SV97 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[902]) ).

thf(957,plain,
    ! [SV98: $i,SV44: $i] :
      ( ( ( SV44 = SV98 )
        = $false )
      | ( ( ~ ( ~ ( subset @ SV44 @ SV98 )
              | ~ ( subset @ SV98 @ SV44 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[903]) ).

thf(958,plain,
    ! [SV98: $i,SV44: $i] :
      ( ( ( ~ ( ~ ( subset @ SV44 @ SV98 )
              | ~ ( subset @ SV98 @ SV44 ) ) )
        = $false )
      | ( ( SV44 = SV98 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[904]) ).

thf(959,plain,
    ! [SV122: $i,SV100: $i,SV46: $i] :
      ( ( ( subset @ SV46 @ SV100 )
        = $false )
      | ( ( subset @ ( relation_inverse_image @ SV122 @ SV46 ) @ ( relation_inverse_image @ SV122 @ SV100 ) )
        = $true )
      | ( ( relation @ SV122 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[905]) ).

thf(960,plain,
    ! [SV131: $i,SV124: $i,SV103: $i,SV51: $i] :
      ( ( ( ~ ( subset @ SV51 @ SV103 )
          | ~ ( subset @ SV124 @ SV131 ) )
        = $true )
      | ( ( subset @ ( cartesian_product2 @ SV51 @ SV124 ) @ ( cartesian_product2 @ SV103 @ SV131 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[907]) ).

thf(961,plain,
    ! [SV105: $i,SV125: $i,SV53: $i] :
      ( ( ( ~ ( subset @ ( cartesian_product2 @ SV53 @ SV125 ) @ ( cartesian_product2 @ SV105 @ SV125 ) ) )
        = $false )
      | ( ( subset @ SV53 @ SV105 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[908]) ).

thf(962,plain,
    ! [SV105: $i,SV53: $i,SV125: $i] :
      ( ( ( ~ ( subset @ ( cartesian_product2 @ SV125 @ SV53 ) @ ( cartesian_product2 @ SV125 @ SV105 ) ) )
        = $false )
      | ( ( subset @ SV53 @ SV105 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[908]) ).

thf(963,plain,
    ! [SV55: $i] :
      ( ( ~ ( ~ ~ ( ~ ( in @ SV55 @ ( sK6_SY246 @ SV55 ) )
                  | ~ ! [SY290: $i,SY291: $i] :
                        ( ~ ~ ( ~ ( in @ SY290 @ ( sK6_SY246 @ SV55 ) )
                              | ~ ( subset @ SY291 @ SY290 ) )
                        | ( in @ SY291 @ ( sK6_SY246 @ SV55 ) ) ) )
            | ~ ! [SY292: $i] :
                  ( ~ ( in @ SY292 @ ( sK6_SY246 @ SV55 ) )
                  | ( in @ ( powerset @ SY292 ) @ ( sK6_SY246 @ SV55 ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[909]) ).

thf(964,plain,
    ! [SV55: $i] :
      ( ( ! [SY293: $i] :
            ~ ~ ( ~ ~ ( ~ ( subset @ SY293 @ ( sK6_SY246 @ SV55 ) )
                      | ~ ~ ( are_equipotent @ SY293 @ ( sK6_SY246 @ SV55 ) ) )
                | ~ ~ ( in @ SY293 @ ( sK6_SY246 @ SV55 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[910]) ).

thf(965,plain,
    ! [SV108: $i,SV57: $i] :
      ( ( ( subset @ ( singleton @ SV57 ) @ SV108 )
        = $false )
      | ( ( in @ SV57 @ SV108 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[911]) ).

thf(966,plain,
    ! [SV108: $i,SV57: $i] :
      ( ( ( in @ SV57 @ SV108 )
        = $false )
      | ( ( subset @ ( singleton @ SV57 ) @ SV108 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[912]) ).

thf(967,plain,
    ! [SV58: $i,SV126: $i,SV109: $i,SV132: $i] :
      ( ( ( ~ ( subset @ ( relation_rng @ SV132 ) @ SV109 ) )
        = $true )
      | ( ( relation_of2_as_subset @ SV132 @ SV126 @ SV109 )
        = $true )
      | ( ( relation_of2_as_subset @ SV132 @ SV126 @ SV58 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[913]) ).

thf(968,plain,
    ! [SV6: $i] :
      ( ( ( ordinal @ ( sK7_SY166 @ SV6 ) )
        = $false )
      | ( ( ~ ( subset @ ( sK7_SY166 @ SV6 ) @ SV6 ) )
        = $true )
      | ( ( ordinal @ SV6 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[916]) ).

thf(969,plain,
    ! [SV69: $i,SV11: $i,SV111: $i] :
      ( ( ( relation_of2 @ SV111 @ SV11 @ SV69 )
        = $false )
      | ( ( subset @ SV111 @ ( cartesian_product2 @ SV11 @ SV69 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[920]) ).

thf(970,plain,
    ! [SV69: $i,SV11: $i,SV111: $i] :
      ( ( ( subset @ SV111 @ ( cartesian_product2 @ SV11 @ SV69 ) )
        = $false )
      | ( ( relation_of2 @ SV111 @ SV11 @ SV69 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[921]) ).

thf(971,plain,
    ! [SV12: $i,SV70: $i,SV135: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV135 @ SV70 )
                  | ( subset @ SV135 @ SV12 ) )
              | ~ ( ~ ( subset @ SV135 @ SV12 )
                  | ( in @ SV135 @ SV70 ) ) ) )
        = $true )
      | ( ( SV70
          = ( powerset @ SV12 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[922]) ).

thf(972,plain,
    ! [SV70: $i,SV12: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV70 )
                  | ( subset @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV12 ) )
              | ~ ( ~ ( subset @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV12 )
                  | ( in @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV70 ) ) ) )
        = $false )
      | ( ( SV70
          = ( powerset @ SV12 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[923]) ).

thf(973,plain,
    ! [SV112: $i,SV71: $i,SV13: $i] :
      ( ( ( subset @ SV13 @ SV71 )
        = $false )
      | ( ( ~ ( subset @ SV112 @ SV71 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV13 @ SV112 ) @ SV71 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[924]) ).

thf(974,plain,
    ! [SV18: $i,SV134: $i] :
      ( ( ( ~ ( in @ SV134 @ SV18 ) )
        = $true )
      | ( ( subset @ SV134 @ SV18 )
        = $true )
      | ( ( epsilon_transitive @ SV18 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[927]) ).

thf(975,plain,
    ! [SV18: $i] :
      ( ( ( ~ ( in @ ( sK9_SY184 @ SV18 ) @ SV18 ) )
        = $false )
      | ( ( epsilon_transitive @ SV18 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[928]) ).

thf(976,plain,
    ! [SV18: $i] :
      ( ( ( subset @ ( sK9_SY184 @ SV18 ) @ SV18 )
        = $false )
      | ( ( epsilon_transitive @ SV18 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[928]) ).

thf(977,plain,
    ! [SV113: $i,SV76: $i,SV19: $i] :
      ( ( ( subset @ SV19 @ SV76 )
        = $false )
      | ( ( ~ ( subset @ SV19 @ SV113 ) )
        = $true )
      | ( ( subset @ SV19 @ ( set_intersection2 @ SV76 @ SV113 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[929]) ).

thf(978,plain,
    ! [SV78: $i,SV21: $i,SV114: $i] :
      ( ( ( relation_of2_as_subset @ SV114 @ SV21 @ SV78 )
        = $false )
      | ( ( relation_of2 @ SV114 @ SV21 @ SV78 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[930]) ).

thf(979,plain,
    ! [SV78: $i,SV21: $i,SV114: $i] :
      ( ( ( relation_of2 @ SV114 @ SV21 @ SV78 )
        = $false )
      | ( ( relation_of2_as_subset @ SV114 @ SV21 @ SV78 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[931]) ).

thf(980,plain,
    ! [SV115: $i,SV79: $i,SV22: $i] :
      ( ( ( subset @ ( unordered_pair @ SV22 @ SV79 ) @ SV115 )
        = $false )
      | ( ( ~ ( ~ ( in @ SV22 @ SV115 )
              | ~ ( in @ SV79 @ SV115 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[932]) ).

thf(981,plain,
    ! [SV79: $i,SV115: $i,SV22: $i] :
      ( ( ( ~ ( ~ ( in @ SV22 @ SV115 )
              | ~ ( in @ SV79 @ SV115 ) ) )
        = $false )
      | ( ( subset @ ( unordered_pair @ SV22 @ SV79 ) @ SV115 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[933]) ).

thf(982,plain,
    ! [SV116: $i,SV83: $i,SV26: $i] :
      ( ( ( subset @ SV26 @ SV83 )
        = $false )
      | ( ( ~ ( disjoint @ SV83 @ SV116 ) )
        = $true )
      | ( ( disjoint @ SV26 @ SV116 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[936]) ).

thf(983,plain,
    ! [SV84: $i,SV27: $i,SV117: $i] :
      ( ( ( subset @ ( relation_dom @ SV117 ) @ SV27 )
        = $true )
      | ( ( relation_of2_as_subset @ SV117 @ SV27 @ SV84 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[937]) ).

thf(984,plain,
    ! [SV27: $i,SV84: $i,SV117: $i] :
      ( ( ( subset @ ( relation_rng @ SV117 ) @ SV84 )
        = $true )
      | ( ( relation_of2_as_subset @ SV117 @ SV27 @ SV84 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[938]) ).

thf(985,plain,
    ! [SV128: $i,SV29: $i] :
      ( ( ( ~ ( ~ ( subset @ SV29 @ SV128 )
              | ! [SY295: $i,SY296: $i] :
                  ( ~ ( in @ ( ordered_pair @ SY295 @ SY296 ) @ SV29 )
                  | ( in @ ( ordered_pair @ SY295 @ SY296 ) @ SV128 ) ) ) )
        = $false )
      | ( ( relation @ SV128 )
        = $false )
      | ( ( relation @ SV29 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[939]) ).

thf(986,plain,
    ! [SV128: $i,SV29: $i] :
      ( ( ( ~ ( ~ ! [SY297: $i,SY298: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY297 @ SY298 ) @ SV29 )
                    | ( in @ ( ordered_pair @ SY297 @ SY298 ) @ SV128 ) )
              | ( subset @ SV29 @ SV128 ) ) )
        = $false )
      | ( ( relation @ SV128 )
        = $false )
      | ( ( relation @ SV29 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[939]) ).

thf(987,plain,
    ! [SV87: $i,SV31: $i,SV136: $i] :
      ( ( ( ~ ( in @ SV136 @ SV31 )
          | ( in @ SV136 @ SV87 ) )
        = $true )
      | ( ( subset @ SV31 @ SV87 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[942]) ).

thf(988,plain,
    ! [SV31: $i,SV87: $i] :
      ( ( ( ~ ( in @ ( sK11_SY271 @ SV87 @ SV31 ) @ SV31 )
          | ( in @ ( sK11_SY271 @ SV87 @ SV31 ) @ SV87 ) )
        = $false )
      | ( ( subset @ SV31 @ SV87 )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[943]) ).

thf(989,plain,
    ! [SV34: $i,SV90: $i] :
      ( ( ( ordinal @ SV90 )
        = $false )
      | ( ( ordinal @ SV34 )
        = $false )
      | ( ( ~ ( ~ ( ~ ( ordinal_subset @ SV34 @ SV90 )
                  | ( subset @ SV34 @ SV90 ) )
              | ~ ( ~ ( subset @ SV34 @ SV90 )
                  | ( ordinal_subset @ SV34 @ SV90 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[946]) ).

thf(990,plain,
    ! [SV91: $i,SV35: $i] :
      ( ( ( SV35 = empty_set )
        = $true )
      | ( ( SV35
          = ( singleton @ SV91 ) )
        = $true )
      | ( ( subset @ SV35 @ ( singleton @ SV91 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[947]) ).

thf(991,plain,
    ! [SV91: $i,SV35: $i] :
      ( ( ( SV35 = empty_set )
        = $false )
      | ( ( subset @ SV35 @ ( singleton @ SV91 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[948]) ).

thf(992,plain,
    ! [SV91: $i,SV35: $i] :
      ( ( ( SV35
          = ( singleton @ SV91 ) )
        = $false )
      | ( ( subset @ SV35 @ ( singleton @ SV91 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[948]) ).

thf(993,plain,
    ! [SV119: $i,SV92: $i,SV36: $i] :
      ( ( ( subset @ SV36 @ SV92 )
        = $false )
      | ( ( ~ ( subset @ SV92 @ SV119 ) )
        = $true )
      | ( ( subset @ SV36 @ SV119 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[949]) ).

thf(994,plain,
    ! [SV129: $i,SV39: $i] :
      ( ( ( subset @ SV39 @ SV129 )
        = $false )
      | ( ( ~ ( ~ ( subset @ ( relation_dom @ SV39 ) @ ( relation_dom @ SV129 ) )
              | ~ ( subset @ ( relation_rng @ SV39 ) @ ( relation_rng @ SV129 ) ) ) )
        = $true )
      | ( ( relation @ SV129 )
        = $false )
      | ( ( relation @ SV39 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[950]) ).

thf(995,plain,
    ! [SV41: $i] :
      ( ( ~ ~ ( ~ ( in @ SV41 @ ( sK5_SY221 @ SV41 ) )
              | ~ ! [SY283: $i,SY284: $i] :
                    ( ~ ~ ( ~ ( in @ SY283 @ ( sK5_SY221 @ SV41 ) )
                          | ~ ( subset @ SY284 @ SY283 ) )
                    | ( in @ SY284 @ ( sK5_SY221 @ SV41 ) ) ) )
        | ~ ! [SY285: $i] :
              ~ ~ ( ~ ( in @ SY285 @ ( sK5_SY221 @ SV41 ) )
                  | ~ ! [SY286: $i] :
                        ~ ~ ( ~ ( in @ SY286 @ ( sK5_SY221 @ SV41 ) )
                            | ~ ! [SX4: $i] :
                                  ( ~ ( subset @ SX4 @ SY285 )
                                  | ( in @ SX4 @ SY286 ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[951]) ).

thf(996,plain,
    ! [SV41: $i,SV137: $i] :
      ( ( ~ ~ ( ~ ~ ( ~ ( subset @ SV137 @ ( sK5_SY221 @ SV41 ) )
                    | ~ ~ ( are_equipotent @ SV137 @ ( sK5_SY221 @ SV41 ) ) )
              | ~ ~ ( in @ SV137 @ ( sK5_SY221 @ SV41 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[952]) ).

thf(997,plain,
    ! [SV96: $i,SV42: $i] :
      ( ( ( SV42 = empty_set )
        = $true )
      | ( ( SV42
          = ( singleton @ SV96 ) )
        = $true )
      | ( ( subset @ SV42 @ ( singleton @ SV96 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[953]) ).

thf(998,plain,
    ! [SV96: $i,SV42: $i] :
      ( ( ( SV42 = empty_set )
        = $false )
      | ( ( subset @ SV42 @ ( singleton @ SV96 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[954]) ).

thf(999,plain,
    ! [SV96: $i,SV42: $i] :
      ( ( ( SV42
          = ( singleton @ SV96 ) )
        = $false )
      | ( ( subset @ SV42 @ ( singleton @ SV96 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[954]) ).

thf(1000,plain,
    ! [SV97: $i,SV43: $i] :
      ( ( ( ~ ( subset @ SV43 @ SV97 )
          | ~ ( ( SV43 != SV97 ) ) )
        = $false )
      | ( ( proper_subset @ SV43 @ SV97 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[955]) ).

thf(1001,plain,
    ! [SV97: $i,SV43: $i] :
      ( ( ( ~ ( subset @ SV43 @ SV97 )
          | ~ ( ( SV43 != SV97 ) ) )
        = $true )
      | ( ( proper_subset @ SV43 @ SV97 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[956]) ).

thf(1002,plain,
    ! [SV98: $i,SV44: $i] :
      ( ( ( ~ ( subset @ SV44 @ SV98 )
          | ~ ( subset @ SV98 @ SV44 ) )
        = $false )
      | ( ( SV44 = SV98 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[957]) ).

thf(1003,plain,
    ! [SV98: $i,SV44: $i] :
      ( ( ( ~ ( subset @ SV44 @ SV98 )
          | ~ ( subset @ SV98 @ SV44 ) )
        = $true )
      | ( ( SV44 = SV98 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[958]) ).

thf(1004,plain,
    ! [SV131: $i,SV124: $i,SV103: $i,SV51: $i] :
      ( ( ( ~ ( subset @ SV51 @ SV103 ) )
        = $true )
      | ( ( ~ ( subset @ SV124 @ SV131 ) )
        = $true )
      | ( ( subset @ ( cartesian_product2 @ SV51 @ SV124 ) @ ( cartesian_product2 @ SV103 @ SV131 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[960]) ).

thf(1005,plain,
    ! [SV105: $i,SV125: $i,SV53: $i] :
      ( ( ( subset @ ( cartesian_product2 @ SV53 @ SV125 ) @ ( cartesian_product2 @ SV105 @ SV125 ) )
        = $true )
      | ( ( subset @ SV53 @ SV105 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[961]) ).

thf(1006,plain,
    ! [SV105: $i,SV53: $i,SV125: $i] :
      ( ( ( subset @ ( cartesian_product2 @ SV125 @ SV53 ) @ ( cartesian_product2 @ SV125 @ SV105 ) )
        = $true )
      | ( ( subset @ SV53 @ SV105 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[962]) ).

thf(1007,plain,
    ! [SV55: $i] :
      ( ( ~ ~ ( ~ ( in @ SV55 @ ( sK6_SY246 @ SV55 ) )
              | ~ ! [SY290: $i,SY291: $i] :
                    ( ~ ~ ( ~ ( in @ SY290 @ ( sK6_SY246 @ SV55 ) )
                          | ~ ( subset @ SY291 @ SY290 ) )
                    | ( in @ SY291 @ ( sK6_SY246 @ SV55 ) ) ) )
        | ~ ! [SY292: $i] :
              ( ~ ( in @ SY292 @ ( sK6_SY246 @ SV55 ) )
              | ( in @ ( powerset @ SY292 ) @ ( sK6_SY246 @ SV55 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[963]) ).

thf(1008,plain,
    ! [SV55: $i,SV138: $i] :
      ( ( ~ ~ ( ~ ~ ( ~ ( subset @ SV138 @ ( sK6_SY246 @ SV55 ) )
                    | ~ ~ ( are_equipotent @ SV138 @ ( sK6_SY246 @ SV55 ) ) )
              | ~ ~ ( in @ SV138 @ ( sK6_SY246 @ SV55 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[964]) ).

thf(1009,plain,
    ! [SV58: $i,SV126: $i,SV109: $i,SV132: $i] :
      ( ( ( subset @ ( relation_rng @ SV132 ) @ SV109 )
        = $false )
      | ( ( relation_of2_as_subset @ SV132 @ SV126 @ SV109 )
        = $true )
      | ( ( relation_of2_as_subset @ SV132 @ SV126 @ SV58 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[967]) ).

thf(1010,plain,
    ! [SV6: $i] :
      ( ( ( subset @ ( sK7_SY166 @ SV6 ) @ SV6 )
        = $false )
      | ( ( ordinal @ ( sK7_SY166 @ SV6 ) )
        = $false )
      | ( ( ordinal @ SV6 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[968]) ).

thf(1011,plain,
    ! [SV12: $i,SV70: $i,SV135: $i] :
      ( ( ( ~ ( ~ ( in @ SV135 @ SV70 )
              | ( subset @ SV135 @ SV12 ) )
          | ~ ( ~ ( subset @ SV135 @ SV12 )
              | ( in @ SV135 @ SV70 ) ) )
        = $false )
      | ( ( SV70
          = ( powerset @ SV12 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[971]) ).

thf(1012,plain,
    ! [SV70: $i,SV12: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV70 )
              | ( subset @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV12 ) )
          | ~ ( ~ ( subset @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV12 )
              | ( in @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV70 ) ) )
        = $true )
      | ( ( SV70
          = ( powerset @ SV12 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[972]) ).

thf(1013,plain,
    ! [SV13: $i,SV71: $i,SV112: $i] :
      ( ( ( subset @ SV112 @ SV71 )
        = $false )
      | ( ( subset @ SV13 @ SV71 )
        = $false )
      | ( ( subset @ ( set_union2 @ SV13 @ SV112 ) @ SV71 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[973]) ).

thf(1014,plain,
    ! [SV18: $i,SV134: $i] :
      ( ( ( in @ SV134 @ SV18 )
        = $false )
      | ( ( subset @ SV134 @ SV18 )
        = $true )
      | ( ( epsilon_transitive @ SV18 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[974]) ).

thf(1015,plain,
    ! [SV18: $i] :
      ( ( ( in @ ( sK9_SY184 @ SV18 ) @ SV18 )
        = $true )
      | ( ( epsilon_transitive @ SV18 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[975]) ).

thf(1016,plain,
    ! [SV76: $i,SV113: $i,SV19: $i] :
      ( ( ( subset @ SV19 @ SV113 )
        = $false )
      | ( ( subset @ SV19 @ SV76 )
        = $false )
      | ( ( subset @ SV19 @ ( set_intersection2 @ SV76 @ SV113 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[977]) ).

thf(1017,plain,
    ! [SV79: $i,SV115: $i,SV22: $i] :
      ( ( ( ~ ( in @ SV22 @ SV115 )
          | ~ ( in @ SV79 @ SV115 ) )
        = $false )
      | ( ( subset @ ( unordered_pair @ SV22 @ SV79 ) @ SV115 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[980]) ).

thf(1018,plain,
    ! [SV79: $i,SV115: $i,SV22: $i] :
      ( ( ( ~ ( in @ SV22 @ SV115 )
          | ~ ( in @ SV79 @ SV115 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV22 @ SV79 ) @ SV115 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[981]) ).

thf(1019,plain,
    ! [SV26: $i,SV116: $i,SV83: $i] :
      ( ( ( disjoint @ SV83 @ SV116 )
        = $false )
      | ( ( subset @ SV26 @ SV83 )
        = $false )
      | ( ( disjoint @ SV26 @ SV116 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[982]) ).

thf(1020,plain,
    ! [SV128: $i,SV29: $i] :
      ( ( ( ~ ( subset @ SV29 @ SV128 )
          | ! [SY295: $i,SY296: $i] :
              ( ~ ( in @ ( ordered_pair @ SY295 @ SY296 ) @ SV29 )
              | ( in @ ( ordered_pair @ SY295 @ SY296 ) @ SV128 ) ) )
        = $true )
      | ( ( relation @ SV128 )
        = $false )
      | ( ( relation @ SV29 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[985]) ).

thf(1021,plain,
    ! [SV128: $i,SV29: $i] :
      ( ( ( ~ ! [SY297: $i,SY298: $i] :
                ( ~ ( in @ ( ordered_pair @ SY297 @ SY298 ) @ SV29 )
                | ( in @ ( ordered_pair @ SY297 @ SY298 ) @ SV128 ) )
          | ( subset @ SV29 @ SV128 ) )
        = $true )
      | ( ( relation @ SV128 )
        = $false )
      | ( ( relation @ SV29 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[986]) ).

thf(1022,plain,
    ! [SV87: $i,SV31: $i,SV136: $i] :
      ( ( ( ~ ( in @ SV136 @ SV31 ) )
        = $true )
      | ( ( in @ SV136 @ SV87 )
        = $true )
      | ( ( subset @ SV31 @ SV87 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[987]) ).

thf(1023,plain,
    ! [SV31: $i,SV87: $i] :
      ( ( ( ~ ( in @ ( sK11_SY271 @ SV87 @ SV31 ) @ SV31 ) )
        = $false )
      | ( ( subset @ SV31 @ SV87 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[988]) ).

thf(1024,plain,
    ! [SV31: $i,SV87: $i] :
      ( ( ( in @ ( sK11_SY271 @ SV87 @ SV31 ) @ SV87 )
        = $false )
      | ( ( subset @ SV31 @ SV87 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[988]) ).

thf(1025,plain,
    ! [SV90: $i,SV34: $i] :
      ( ( ( ~ ( ~ ( ordinal_subset @ SV34 @ SV90 )
              | ( subset @ SV34 @ SV90 ) )
          | ~ ( ~ ( subset @ SV34 @ SV90 )
              | ( ordinal_subset @ SV34 @ SV90 ) ) )
        = $false )
      | ( ( ordinal @ SV34 )
        = $false )
      | ( ( ordinal @ SV90 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[989]) ).

thf(1026,plain,
    ! [SV36: $i,SV119: $i,SV92: $i] :
      ( ( ( subset @ SV92 @ SV119 )
        = $false )
      | ( ( subset @ SV36 @ SV92 )
        = $false )
      | ( ( subset @ SV36 @ SV119 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[993]) ).

thf(1027,plain,
    ! [SV129: $i,SV39: $i] :
      ( ( ( ~ ( subset @ ( relation_dom @ SV39 ) @ ( relation_dom @ SV129 ) )
          | ~ ( subset @ ( relation_rng @ SV39 ) @ ( relation_rng @ SV129 ) ) )
        = $false )
      | ( ( subset @ SV39 @ SV129 )
        = $false )
      | ( ( relation @ SV129 )
        = $false )
      | ( ( relation @ SV39 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[994]) ).

thf(1028,plain,
    ! [SV41: $i] :
      ( ( ~ ~ ( ~ ( in @ SV41 @ ( sK5_SY221 @ SV41 ) )
              | ~ ! [SY283: $i,SY284: $i] :
                    ( ~ ~ ( ~ ( in @ SY283 @ ( sK5_SY221 @ SV41 ) )
                          | ~ ( subset @ SY284 @ SY283 ) )
                    | ( in @ SY284 @ ( sK5_SY221 @ SV41 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[995]) ).

thf(1029,plain,
    ! [SV41: $i] :
      ( ( ~ ! [SY285: $i] :
              ~ ~ ( ~ ( in @ SY285 @ ( sK5_SY221 @ SV41 ) )
                  | ~ ! [SY286: $i] :
                        ~ ~ ( ~ ( in @ SY286 @ ( sK5_SY221 @ SV41 ) )
                            | ~ ! [SX4: $i] :
                                  ( ~ ( subset @ SX4 @ SY285 )
                                  | ( in @ SX4 @ SY286 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[995]) ).

thf(1030,plain,
    ! [SV41: $i,SV137: $i] :
      ( ( ~ ( ~ ~ ( ~ ( subset @ SV137 @ ( sK5_SY221 @ SV41 ) )
                  | ~ ~ ( are_equipotent @ SV137 @ ( sK5_SY221 @ SV41 ) ) )
            | ~ ~ ( in @ SV137 @ ( sK5_SY221 @ SV41 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[996]) ).

thf(1031,plain,
    ! [SV97: $i,SV43: $i] :
      ( ( ( ~ ( subset @ SV43 @ SV97 ) )
        = $false )
      | ( ( proper_subset @ SV43 @ SV97 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1000]) ).

thf(1032,plain,
    ! [SV97: $i,SV43: $i] :
      ( ( ( ~ ( ( SV43 != SV97 ) ) )
        = $false )
      | ( ( proper_subset @ SV43 @ SV97 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1000]) ).

thf(1033,plain,
    ! [SV97: $i,SV43: $i] :
      ( ( ( ~ ( subset @ SV43 @ SV97 ) )
        = $true )
      | ( ( ~ ( ( SV43 != SV97 ) ) )
        = $true )
      | ( ( proper_subset @ SV43 @ SV97 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1001]) ).

thf(1034,plain,
    ! [SV98: $i,SV44: $i] :
      ( ( ( ~ ( subset @ SV44 @ SV98 ) )
        = $false )
      | ( ( SV44 = SV98 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1002]) ).

thf(1035,plain,
    ! [SV44: $i,SV98: $i] :
      ( ( ( ~ ( subset @ SV98 @ SV44 ) )
        = $false )
      | ( ( SV44 = SV98 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1002]) ).

thf(1036,plain,
    ! [SV98: $i,SV44: $i] :
      ( ( ( ~ ( subset @ SV44 @ SV98 ) )
        = $true )
      | ( ( ~ ( subset @ SV98 @ SV44 ) )
        = $true )
      | ( ( SV44 = SV98 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1003]) ).

thf(1037,plain,
    ! [SV131: $i,SV124: $i,SV103: $i,SV51: $i] :
      ( ( ( subset @ SV51 @ SV103 )
        = $false )
      | ( ( ~ ( subset @ SV124 @ SV131 ) )
        = $true )
      | ( ( subset @ ( cartesian_product2 @ SV51 @ SV124 ) @ ( cartesian_product2 @ SV103 @ SV131 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1004]) ).

thf(1038,plain,
    ! [SV55: $i] :
      ( ( ~ ~ ( ~ ( in @ SV55 @ ( sK6_SY246 @ SV55 ) )
              | ~ ! [SY290: $i,SY291: $i] :
                    ( ~ ~ ( ~ ( in @ SY290 @ ( sK6_SY246 @ SV55 ) )
                          | ~ ( subset @ SY291 @ SY290 ) )
                    | ( in @ SY291 @ ( sK6_SY246 @ SV55 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1007]) ).

thf(1039,plain,
    ! [SV55: $i] :
      ( ( ~ ! [SY292: $i] :
              ( ~ ( in @ SY292 @ ( sK6_SY246 @ SV55 ) )
              | ( in @ ( powerset @ SY292 ) @ ( sK6_SY246 @ SV55 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1007]) ).

thf(1040,plain,
    ! [SV55: $i,SV138: $i] :
      ( ( ~ ( ~ ~ ( ~ ( subset @ SV138 @ ( sK6_SY246 @ SV55 ) )
                  | ~ ~ ( are_equipotent @ SV138 @ ( sK6_SY246 @ SV55 ) ) )
            | ~ ~ ( in @ SV138 @ ( sK6_SY246 @ SV55 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1008]) ).

thf(1041,plain,
    ! [SV12: $i,SV70: $i,SV135: $i] :
      ( ( ( ~ ( ~ ( in @ SV135 @ SV70 )
              | ( subset @ SV135 @ SV12 ) ) )
        = $false )
      | ( ( SV70
          = ( powerset @ SV12 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1011]) ).

thf(1042,plain,
    ! [SV70: $i,SV12: $i,SV135: $i] :
      ( ( ( ~ ( ~ ( subset @ SV135 @ SV12 )
              | ( in @ SV135 @ SV70 ) ) )
        = $false )
      | ( ( SV70
          = ( powerset @ SV12 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1011]) ).

thf(1043,plain,
    ! [SV70: $i,SV12: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV70 )
              | ( subset @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV12 ) ) )
        = $true )
      | ( ( ~ ( ~ ( subset @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV12 )
              | ( in @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV70 ) ) )
        = $true )
      | ( ( SV70
          = ( powerset @ SV12 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1012]) ).

thf(1044,plain,
    ! [SV79: $i,SV115: $i,SV22: $i] :
      ( ( ( ~ ( in @ SV22 @ SV115 ) )
        = $false )
      | ( ( subset @ ( unordered_pair @ SV22 @ SV79 ) @ SV115 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1017]) ).

thf(1045,plain,
    ! [SV22: $i,SV115: $i,SV79: $i] :
      ( ( ( ~ ( in @ SV79 @ SV115 ) )
        = $false )
      | ( ( subset @ ( unordered_pair @ SV22 @ SV79 ) @ SV115 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1017]) ).

thf(1046,plain,
    ! [SV79: $i,SV115: $i,SV22: $i] :
      ( ( ( ~ ( in @ SV22 @ SV115 ) )
        = $true )
      | ( ( ~ ( in @ SV79 @ SV115 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV22 @ SV79 ) @ SV115 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1018]) ).

thf(1047,plain,
    ! [SV128: $i,SV29: $i] :
      ( ( ( ~ ( subset @ SV29 @ SV128 ) )
        = $true )
      | ( ( ! [SY295: $i,SY296: $i] :
              ( ~ ( in @ ( ordered_pair @ SY295 @ SY296 ) @ SV29 )
              | ( in @ ( ordered_pair @ SY295 @ SY296 ) @ SV128 ) ) )
        = $true )
      | ( ( relation @ SV128 )
        = $false )
      | ( ( relation @ SV29 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1020]) ).

thf(1048,plain,
    ! [SV128: $i,SV29: $i] :
      ( ( ( ~ ! [SY297: $i,SY298: $i] :
                ( ~ ( in @ ( ordered_pair @ SY297 @ SY298 ) @ SV29 )
                | ( in @ ( ordered_pair @ SY297 @ SY298 ) @ SV128 ) ) )
        = $true )
      | ( ( subset @ SV29 @ SV128 )
        = $true )
      | ( ( relation @ SV128 )
        = $false )
      | ( ( relation @ SV29 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1021]) ).

thf(1049,plain,
    ! [SV87: $i,SV31: $i,SV136: $i] :
      ( ( ( in @ SV136 @ SV31 )
        = $false )
      | ( ( in @ SV136 @ SV87 )
        = $true )
      | ( ( subset @ SV31 @ SV87 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1022]) ).

thf(1050,plain,
    ! [SV31: $i,SV87: $i] :
      ( ( ( in @ ( sK11_SY271 @ SV87 @ SV31 ) @ SV31 )
        = $true )
      | ( ( subset @ SV31 @ SV87 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1023]) ).

thf(1051,plain,
    ! [SV90: $i,SV34: $i] :
      ( ( ( ~ ( ~ ( ordinal_subset @ SV34 @ SV90 )
              | ( subset @ SV34 @ SV90 ) ) )
        = $false )
      | ( ( ordinal @ SV34 )
        = $false )
      | ( ( ordinal @ SV90 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1025]) ).

thf(1052,plain,
    ! [SV90: $i,SV34: $i] :
      ( ( ( ~ ( ~ ( subset @ SV34 @ SV90 )
              | ( ordinal_subset @ SV34 @ SV90 ) ) )
        = $false )
      | ( ( ordinal @ SV34 )
        = $false )
      | ( ( ordinal @ SV90 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1025]) ).

thf(1053,plain,
    ! [SV129: $i,SV39: $i] :
      ( ( ( ~ ( subset @ ( relation_dom @ SV39 ) @ ( relation_dom @ SV129 ) ) )
        = $false )
      | ( ( subset @ SV39 @ SV129 )
        = $false )
      | ( ( relation @ SV129 )
        = $false )
      | ( ( relation @ SV39 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1027]) ).

thf(1054,plain,
    ! [SV129: $i,SV39: $i] :
      ( ( ( ~ ( subset @ ( relation_rng @ SV39 ) @ ( relation_rng @ SV129 ) ) )
        = $false )
      | ( ( subset @ SV39 @ SV129 )
        = $false )
      | ( ( relation @ SV129 )
        = $false )
      | ( ( relation @ SV39 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1027]) ).

thf(1055,plain,
    ! [SV41: $i] :
      ( ( ~ ( ~ ( in @ SV41 @ ( sK5_SY221 @ SV41 ) )
            | ~ ! [SY283: $i,SY284: $i] :
                  ( ~ ~ ( ~ ( in @ SY283 @ ( sK5_SY221 @ SV41 ) )
                        | ~ ( subset @ SY284 @ SY283 ) )
                  | ( in @ SY284 @ ( sK5_SY221 @ SV41 ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1028]) ).

thf(1056,plain,
    ! [SV41: $i] :
      ( ( ! [SY285: $i] :
            ~ ~ ( ~ ( in @ SY285 @ ( sK5_SY221 @ SV41 ) )
                | ~ ! [SY286: $i] :
                      ~ ~ ( ~ ( in @ SY286 @ ( sK5_SY221 @ SV41 ) )
                          | ~ ! [SX4: $i] :
                                ( ~ ( subset @ SX4 @ SY285 )
                                | ( in @ SX4 @ SY286 ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1029]) ).

thf(1057,plain,
    ! [SV41: $i,SV137: $i] :
      ( ( ~ ~ ( ~ ( subset @ SV137 @ ( sK5_SY221 @ SV41 ) )
              | ~ ~ ( are_equipotent @ SV137 @ ( sK5_SY221 @ SV41 ) ) )
        | ~ ~ ( in @ SV137 @ ( sK5_SY221 @ SV41 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1030]) ).

thf(1058,plain,
    ! [SV97: $i,SV43: $i] :
      ( ( ( subset @ SV43 @ SV97 )
        = $true )
      | ( ( proper_subset @ SV43 @ SV97 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1031]) ).

thf(1059,plain,
    ! [SV97: $i,SV43: $i] :
      ( ( ( SV43 != SV97 )
        = $true )
      | ( ( proper_subset @ SV43 @ SV97 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1032]) ).

thf(1060,plain,
    ! [SV97: $i,SV43: $i] :
      ( ( ( subset @ SV43 @ SV97 )
        = $false )
      | ( ( ~ ( ( SV43 != SV97 ) ) )
        = $true )
      | ( ( proper_subset @ SV43 @ SV97 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1033]) ).

thf(1061,plain,
    ! [SV98: $i,SV44: $i] :
      ( ( ( subset @ SV44 @ SV98 )
        = $true )
      | ( ( SV44 = SV98 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1034]) ).

thf(1062,plain,
    ! [SV44: $i,SV98: $i] :
      ( ( ( subset @ SV98 @ SV44 )
        = $true )
      | ( ( SV44 = SV98 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1035]) ).

thf(1063,plain,
    ! [SV98: $i,SV44: $i] :
      ( ( ( subset @ SV44 @ SV98 )
        = $false )
      | ( ( ~ ( subset @ SV98 @ SV44 ) )
        = $true )
      | ( ( SV44 = SV98 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1036]) ).

thf(1064,plain,
    ! [SV103: $i,SV51: $i,SV131: $i,SV124: $i] :
      ( ( ( subset @ SV124 @ SV131 )
        = $false )
      | ( ( subset @ SV51 @ SV103 )
        = $false )
      | ( ( subset @ ( cartesian_product2 @ SV51 @ SV124 ) @ ( cartesian_product2 @ SV103 @ SV131 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1037]) ).

thf(1065,plain,
    ! [SV55: $i] :
      ( ( ~ ( ~ ( in @ SV55 @ ( sK6_SY246 @ SV55 ) )
            | ~ ! [SY290: $i,SY291: $i] :
                  ( ~ ~ ( ~ ( in @ SY290 @ ( sK6_SY246 @ SV55 ) )
                        | ~ ( subset @ SY291 @ SY290 ) )
                  | ( in @ SY291 @ ( sK6_SY246 @ SV55 ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1038]) ).

thf(1066,plain,
    ! [SV55: $i] :
      ( ( ! [SY292: $i] :
            ( ~ ( in @ SY292 @ ( sK6_SY246 @ SV55 ) )
            | ( in @ ( powerset @ SY292 ) @ ( sK6_SY246 @ SV55 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1039]) ).

thf(1067,plain,
    ! [SV55: $i,SV138: $i] :
      ( ( ~ ~ ( ~ ( subset @ SV138 @ ( sK6_SY246 @ SV55 ) )
              | ~ ~ ( are_equipotent @ SV138 @ ( sK6_SY246 @ SV55 ) ) )
        | ~ ~ ( in @ SV138 @ ( sK6_SY246 @ SV55 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1040]) ).

thf(1068,plain,
    ! [SV12: $i,SV70: $i,SV135: $i] :
      ( ( ( ~ ( in @ SV135 @ SV70 )
          | ( subset @ SV135 @ SV12 ) )
        = $true )
      | ( ( SV70
          = ( powerset @ SV12 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1041]) ).

thf(1069,plain,
    ! [SV70: $i,SV12: $i,SV135: $i] :
      ( ( ( ~ ( subset @ SV135 @ SV12 )
          | ( in @ SV135 @ SV70 ) )
        = $true )
      | ( ( SV70
          = ( powerset @ SV12 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1042]) ).

thf(1070,plain,
    ! [SV70: $i,SV12: $i] :
      ( ( ( ~ ( in @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV70 )
          | ( subset @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV12 ) )
        = $false )
      | ( ( ~ ( ~ ( subset @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV12 )
              | ( in @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV70 ) ) )
        = $true )
      | ( ( SV70
          = ( powerset @ SV12 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1043]) ).

thf(1071,plain,
    ! [SV79: $i,SV115: $i,SV22: $i] :
      ( ( ( in @ SV22 @ SV115 )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV22 @ SV79 ) @ SV115 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1044]) ).

thf(1072,plain,
    ! [SV22: $i,SV115: $i,SV79: $i] :
      ( ( ( in @ SV79 @ SV115 )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV22 @ SV79 ) @ SV115 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1045]) ).

thf(1073,plain,
    ! [SV79: $i,SV115: $i,SV22: $i] :
      ( ( ( in @ SV22 @ SV115 )
        = $false )
      | ( ( ~ ( in @ SV79 @ SV115 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV22 @ SV79 ) @ SV115 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1046]) ).

thf(1074,plain,
    ! [SV128: $i,SV29: $i] :
      ( ( ( subset @ SV29 @ SV128 )
        = $false )
      | ( ( ! [SY295: $i,SY296: $i] :
              ( ~ ( in @ ( ordered_pair @ SY295 @ SY296 ) @ SV29 )
              | ( in @ ( ordered_pair @ SY295 @ SY296 ) @ SV128 ) ) )
        = $true )
      | ( ( relation @ SV128 )
        = $false )
      | ( ( relation @ SV29 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1047]) ).

thf(1075,plain,
    ! [SV128: $i,SV29: $i] :
      ( ( ( ! [SY297: $i,SY298: $i] :
              ( ~ ( in @ ( ordered_pair @ SY297 @ SY298 ) @ SV29 )
              | ( in @ ( ordered_pair @ SY297 @ SY298 ) @ SV128 ) ) )
        = $false )
      | ( ( subset @ SV29 @ SV128 )
        = $true )
      | ( ( relation @ SV128 )
        = $false )
      | ( ( relation @ SV29 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1048]) ).

thf(1076,plain,
    ! [SV90: $i,SV34: $i] :
      ( ( ( ~ ( ordinal_subset @ SV34 @ SV90 )
          | ( subset @ SV34 @ SV90 ) )
        = $true )
      | ( ( ordinal @ SV34 )
        = $false )
      | ( ( ordinal @ SV90 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1051]) ).

thf(1077,plain,
    ! [SV90: $i,SV34: $i] :
      ( ( ( ~ ( subset @ SV34 @ SV90 )
          | ( ordinal_subset @ SV34 @ SV90 ) )
        = $true )
      | ( ( ordinal @ SV34 )
        = $false )
      | ( ( ordinal @ SV90 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1052]) ).

thf(1078,plain,
    ! [SV129: $i,SV39: $i] :
      ( ( ( subset @ ( relation_dom @ SV39 ) @ ( relation_dom @ SV129 ) )
        = $true )
      | ( ( subset @ SV39 @ SV129 )
        = $false )
      | ( ( relation @ SV129 )
        = $false )
      | ( ( relation @ SV39 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1053]) ).

thf(1079,plain,
    ! [SV129: $i,SV39: $i] :
      ( ( ( subset @ ( relation_rng @ SV39 ) @ ( relation_rng @ SV129 ) )
        = $true )
      | ( ( subset @ SV39 @ SV129 )
        = $false )
      | ( ( relation @ SV129 )
        = $false )
      | ( ( relation @ SV39 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1054]) ).

thf(1080,plain,
    ! [SV41: $i] :
      ( ( ~ ( in @ SV41 @ ( sK5_SY221 @ SV41 ) )
        | ~ ! [SY283: $i,SY284: $i] :
              ( ~ ~ ( ~ ( in @ SY283 @ ( sK5_SY221 @ SV41 ) )
                    | ~ ( subset @ SY284 @ SY283 ) )
              | ( in @ SY284 @ ( sK5_SY221 @ SV41 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1055]) ).

thf(1081,plain,
    ! [SV41: $i,SV139: $i] :
      ( ( ~ ~ ( ~ ( in @ SV139 @ ( sK5_SY221 @ SV41 ) )
              | ~ ! [SY299: $i] :
                    ~ ~ ( ~ ( in @ SY299 @ ( sK5_SY221 @ SV41 ) )
                        | ~ ! [SY300: $i] :
                              ( ~ ( subset @ SY300 @ SV139 )
                              | ( in @ SY300 @ SY299 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1056]) ).

thf(1082,plain,
    ! [SV41: $i,SV137: $i] :
      ( ( ( ~ ~ ( ~ ( subset @ SV137 @ ( sK5_SY221 @ SV41 ) )
                | ~ ~ ( are_equipotent @ SV137 @ ( sK5_SY221 @ SV41 ) ) ) )
        = $true )
      | ( ( ~ ~ ( in @ SV137 @ ( sK5_SY221 @ SV41 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1057]) ).

thf(1083,plain,
    ! [SV97: $i,SV43: $i] :
      ( ( ( SV43 = SV97 )
        = $false )
      | ( ( proper_subset @ SV43 @ SV97 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1059]) ).

thf(1084,plain,
    ! [SV97: $i,SV43: $i] :
      ( ( ( SV43 != SV97 )
        = $false )
      | ( ( subset @ SV43 @ SV97 )
        = $false )
      | ( ( proper_subset @ SV43 @ SV97 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1060]) ).

thf(1085,plain,
    ! [SV44: $i,SV98: $i] :
      ( ( ( subset @ SV98 @ SV44 )
        = $false )
      | ( ( subset @ SV44 @ SV98 )
        = $false )
      | ( ( SV44 = SV98 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1063]) ).

thf(1086,plain,
    ! [SV55: $i] :
      ( ( ~ ( in @ SV55 @ ( sK6_SY246 @ SV55 ) )
        | ~ ! [SY290: $i,SY291: $i] :
              ( ~ ~ ( ~ ( in @ SY290 @ ( sK6_SY246 @ SV55 ) )
                    | ~ ( subset @ SY291 @ SY290 ) )
              | ( in @ SY291 @ ( sK6_SY246 @ SV55 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1065]) ).

thf(1087,plain,
    ! [SV55: $i,SV140: $i] :
      ( ( ~ ( in @ SV140 @ ( sK6_SY246 @ SV55 ) )
        | ( in @ ( powerset @ SV140 ) @ ( sK6_SY246 @ SV55 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1066]) ).

thf(1088,plain,
    ! [SV55: $i,SV138: $i] :
      ( ( ( ~ ~ ( ~ ( subset @ SV138 @ ( sK6_SY246 @ SV55 ) )
                | ~ ~ ( are_equipotent @ SV138 @ ( sK6_SY246 @ SV55 ) ) ) )
        = $true )
      | ( ( ~ ~ ( in @ SV138 @ ( sK6_SY246 @ SV55 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1067]) ).

thf(1089,plain,
    ! [SV12: $i,SV70: $i,SV135: $i] :
      ( ( ( ~ ( in @ SV135 @ SV70 ) )
        = $true )
      | ( ( subset @ SV135 @ SV12 )
        = $true )
      | ( ( SV70
          = ( powerset @ SV12 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1068]) ).

thf(1090,plain,
    ! [SV70: $i,SV12: $i,SV135: $i] :
      ( ( ( ~ ( subset @ SV135 @ SV12 ) )
        = $true )
      | ( ( in @ SV135 @ SV70 )
        = $true )
      | ( ( SV70
          = ( powerset @ SV12 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1069]) ).

thf(1091,plain,
    ! [SV70: $i,SV12: $i] :
      ( ( ( ~ ( in @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV70 ) )
        = $false )
      | ( ( ~ ( ~ ( subset @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV12 )
              | ( in @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV70 ) ) )
        = $true )
      | ( ( SV70
          = ( powerset @ SV12 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1070]) ).

thf(1092,plain,
    ! [SV70: $i,SV12: $i] :
      ( ( ( subset @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV12 )
        = $false )
      | ( ( ~ ( ~ ( subset @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV12 )
              | ( in @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV70 ) ) )
        = $true )
      | ( ( SV70
          = ( powerset @ SV12 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1070]) ).

thf(1093,plain,
    ! [SV22: $i,SV115: $i,SV79: $i] :
      ( ( ( in @ SV79 @ SV115 )
        = $false )
      | ( ( in @ SV22 @ SV115 )
        = $false )
      | ( ( subset @ ( unordered_pair @ SV22 @ SV79 ) @ SV115 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1073]) ).

thf(1094,plain,
    ! [SV128: $i,SV29: $i,SV141: $i] :
      ( ( ( ! [SY301: $i] :
              ( ~ ( in @ ( ordered_pair @ SV141 @ SY301 ) @ SV29 )
              | ( in @ ( ordered_pair @ SV141 @ SY301 ) @ SV128 ) ) )
        = $true )
      | ( ( subset @ SV29 @ SV128 )
        = $false )
      | ( ( relation @ SV128 )
        = $false )
      | ( ( relation @ SV29 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1074]) ).

thf(1095,plain,
    ! [SV29: $i,SV128: $i] :
      ( ( ( ! [SY302: $i] :
              ( ~ ( in @ ( ordered_pair @ ( sK12_SY297 @ SV128 @ SV29 ) @ SY302 ) @ SV29 )
              | ( in @ ( ordered_pair @ ( sK12_SY297 @ SV128 @ SV29 ) @ SY302 ) @ SV128 ) ) )
        = $false )
      | ( ( subset @ SV29 @ SV128 )
        = $true )
      | ( ( relation @ SV128 )
        = $false )
      | ( ( relation @ SV29 )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[1075]) ).

thf(1096,plain,
    ! [SV90: $i,SV34: $i] :
      ( ( ( ~ ( ordinal_subset @ SV34 @ SV90 ) )
        = $true )
      | ( ( subset @ SV34 @ SV90 )
        = $true )
      | ( ( ordinal @ SV34 )
        = $false )
      | ( ( ordinal @ SV90 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1076]) ).

thf(1097,plain,
    ! [SV90: $i,SV34: $i] :
      ( ( ( ~ ( subset @ SV34 @ SV90 ) )
        = $true )
      | ( ( ordinal_subset @ SV34 @ SV90 )
        = $true )
      | ( ( ordinal @ SV34 )
        = $false )
      | ( ( ordinal @ SV90 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1077]) ).

thf(1098,plain,
    ! [SV41: $i] :
      ( ( ~ ( in @ SV41 @ ( sK5_SY221 @ SV41 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1080]) ).

thf(1099,plain,
    ! [SV41: $i] :
      ( ( ~ ! [SY283: $i,SY284: $i] :
              ( ~ ~ ( ~ ( in @ SY283 @ ( sK5_SY221 @ SV41 ) )
                    | ~ ( subset @ SY284 @ SY283 ) )
              | ( in @ SY284 @ ( sK5_SY221 @ SV41 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1080]) ).

thf(1100,plain,
    ! [SV41: $i,SV139: $i] :
      ( ( ~ ( ~ ( in @ SV139 @ ( sK5_SY221 @ SV41 ) )
            | ~ ! [SY299: $i] :
                  ~ ~ ( ~ ( in @ SY299 @ ( sK5_SY221 @ SV41 ) )
                      | ~ ! [SY300: $i] :
                            ( ~ ( subset @ SY300 @ SV139 )
                            | ( in @ SY300 @ SY299 ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1081]) ).

thf(1101,plain,
    ! [SV41: $i,SV137: $i] :
      ( ( ( ~ ( ~ ( subset @ SV137 @ ( sK5_SY221 @ SV41 ) )
              | ~ ~ ( are_equipotent @ SV137 @ ( sK5_SY221 @ SV41 ) ) ) )
        = $false )
      | ( ( ~ ~ ( in @ SV137 @ ( sK5_SY221 @ SV41 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1082]) ).

thf(1102,plain,
    ! [SV97: $i,SV43: $i] :
      ( ( ( SV43 = SV97 )
        = $true )
      | ( ( subset @ SV43 @ SV97 )
        = $false )
      | ( ( proper_subset @ SV43 @ SV97 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1084]) ).

thf(1103,plain,
    ! [SV55: $i] :
      ( ( ~ ( in @ SV55 @ ( sK6_SY246 @ SV55 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1086]) ).

thf(1104,plain,
    ! [SV55: $i] :
      ( ( ~ ! [SY290: $i,SY291: $i] :
              ( ~ ~ ( ~ ( in @ SY290 @ ( sK6_SY246 @ SV55 ) )
                    | ~ ( subset @ SY291 @ SY290 ) )
              | ( in @ SY291 @ ( sK6_SY246 @ SV55 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1086]) ).

thf(1105,plain,
    ! [SV55: $i,SV140: $i] :
      ( ( ( ~ ( in @ SV140 @ ( sK6_SY246 @ SV55 ) ) )
        = $true )
      | ( ( in @ ( powerset @ SV140 ) @ ( sK6_SY246 @ SV55 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1087]) ).

thf(1106,plain,
    ! [SV55: $i,SV138: $i] :
      ( ( ( ~ ( ~ ( subset @ SV138 @ ( sK6_SY246 @ SV55 ) )
              | ~ ~ ( are_equipotent @ SV138 @ ( sK6_SY246 @ SV55 ) ) ) )
        = $false )
      | ( ( ~ ~ ( in @ SV138 @ ( sK6_SY246 @ SV55 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1088]) ).

thf(1107,plain,
    ! [SV12: $i,SV70: $i,SV135: $i] :
      ( ( ( in @ SV135 @ SV70 )
        = $false )
      | ( ( subset @ SV135 @ SV12 )
        = $true )
      | ( ( SV70
          = ( powerset @ SV12 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1089]) ).

thf(1108,plain,
    ! [SV70: $i,SV12: $i,SV135: $i] :
      ( ( ( subset @ SV135 @ SV12 )
        = $false )
      | ( ( in @ SV135 @ SV70 )
        = $true )
      | ( ( SV70
          = ( powerset @ SV12 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1090]) ).

thf(1109,plain,
    ! [SV70: $i,SV12: $i] :
      ( ( ( in @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV70 )
        = $true )
      | ( ( ~ ( ~ ( subset @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV12 )
              | ( in @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV70 ) ) )
        = $true )
      | ( ( SV70
          = ( powerset @ SV12 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1091]) ).

thf(1110,plain,
    ! [SV70: $i,SV12: $i] :
      ( ( ( ~ ( subset @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV12 )
          | ( in @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV70 ) )
        = $false )
      | ( ( subset @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV12 )
        = $false )
      | ( ( SV70
          = ( powerset @ SV12 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1092]) ).

thf(1111,plain,
    ! [SV128: $i,SV29: $i,SV142: $i,SV141: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV141 @ SV142 ) @ SV29 )
          | ( in @ ( ordered_pair @ SV141 @ SV142 ) @ SV128 ) )
        = $true )
      | ( ( subset @ SV29 @ SV128 )
        = $false )
      | ( ( relation @ SV128 )
        = $false )
      | ( ( relation @ SV29 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1094]) ).

thf(1112,plain,
    ! [SV29: $i,SV128: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK12_SY297 @ SV128 @ SV29 ) @ ( sK13_SY302 @ SV29 @ SV128 ) ) @ SV29 )
          | ( in @ ( ordered_pair @ ( sK12_SY297 @ SV128 @ SV29 ) @ ( sK13_SY302 @ SV29 @ SV128 ) ) @ SV128 ) )
        = $false )
      | ( ( subset @ SV29 @ SV128 )
        = $true )
      | ( ( relation @ SV128 )
        = $false )
      | ( ( relation @ SV29 )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[1095]) ).

thf(1113,plain,
    ! [SV90: $i,SV34: $i] :
      ( ( ( ordinal_subset @ SV34 @ SV90 )
        = $false )
      | ( ( subset @ SV34 @ SV90 )
        = $true )
      | ( ( ordinal @ SV34 )
        = $false )
      | ( ( ordinal @ SV90 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1096]) ).

thf(1114,plain,
    ! [SV90: $i,SV34: $i] :
      ( ( ( subset @ SV34 @ SV90 )
        = $false )
      | ( ( ordinal_subset @ SV34 @ SV90 )
        = $true )
      | ( ( ordinal @ SV34 )
        = $false )
      | ( ( ordinal @ SV90 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1097]) ).

thf(1115,plain,
    ! [SV41: $i] :
      ( ( in @ SV41 @ ( sK5_SY221 @ SV41 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1098]) ).

thf(1116,plain,
    ! [SV41: $i] :
      ( ( ! [SY283: $i,SY284: $i] :
            ( ~ ~ ( ~ ( in @ SY283 @ ( sK5_SY221 @ SV41 ) )
                  | ~ ( subset @ SY284 @ SY283 ) )
            | ( in @ SY284 @ ( sK5_SY221 @ SV41 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1099]) ).

thf(1117,plain,
    ! [SV41: $i,SV139: $i] :
      ( ( ~ ( in @ SV139 @ ( sK5_SY221 @ SV41 ) )
        | ~ ! [SY299: $i] :
              ~ ~ ( ~ ( in @ SY299 @ ( sK5_SY221 @ SV41 ) )
                  | ~ ! [SY300: $i] :
                        ( ~ ( subset @ SY300 @ SV139 )
                        | ( in @ SY300 @ SY299 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1100]) ).

thf(1118,plain,
    ! [SV41: $i,SV137: $i] :
      ( ( ( ~ ( subset @ SV137 @ ( sK5_SY221 @ SV41 ) )
          | ~ ~ ( are_equipotent @ SV137 @ ( sK5_SY221 @ SV41 ) ) )
        = $true )
      | ( ( ~ ~ ( in @ SV137 @ ( sK5_SY221 @ SV41 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1101]) ).

thf(1119,plain,
    ! [SV55: $i] :
      ( ( in @ SV55 @ ( sK6_SY246 @ SV55 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1103]) ).

thf(1120,plain,
    ! [SV55: $i] :
      ( ( ! [SY290: $i,SY291: $i] :
            ( ~ ~ ( ~ ( in @ SY290 @ ( sK6_SY246 @ SV55 ) )
                  | ~ ( subset @ SY291 @ SY290 ) )
            | ( in @ SY291 @ ( sK6_SY246 @ SV55 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1104]) ).

thf(1121,plain,
    ! [SV55: $i,SV140: $i] :
      ( ( ( in @ SV140 @ ( sK6_SY246 @ SV55 ) )
        = $false )
      | ( ( in @ ( powerset @ SV140 ) @ ( sK6_SY246 @ SV55 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1105]) ).

thf(1122,plain,
    ! [SV55: $i,SV138: $i] :
      ( ( ( ~ ( subset @ SV138 @ ( sK6_SY246 @ SV55 ) )
          | ~ ~ ( are_equipotent @ SV138 @ ( sK6_SY246 @ SV55 ) ) )
        = $true )
      | ( ( ~ ~ ( in @ SV138 @ ( sK6_SY246 @ SV55 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1106]) ).

thf(1123,plain,
    ! [SV70: $i,SV12: $i] :
      ( ( ( ~ ( subset @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV12 )
          | ( in @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV70 ) )
        = $false )
      | ( ( in @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV70 )
        = $true )
      | ( ( SV70
          = ( powerset @ SV12 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1109]) ).

thf(1124,plain,
    ! [SV70: $i,SV12: $i] :
      ( ( ( ~ ( subset @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV12 ) )
        = $false )
      | ( ( subset @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV12 )
        = $false )
      | ( ( SV70
          = ( powerset @ SV12 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1110]) ).

thf(1125,plain,
    ! [SV70: $i,SV12: $i] :
      ( ( ( in @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV70 )
        = $false )
      | ( ( subset @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV12 )
        = $false )
      | ( ( SV70
          = ( powerset @ SV12 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1110]) ).

thf(1126,plain,
    ! [SV128: $i,SV29: $i,SV142: $i,SV141: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV141 @ SV142 ) @ SV29 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV141 @ SV142 ) @ SV128 )
        = $true )
      | ( ( subset @ SV29 @ SV128 )
        = $false )
      | ( ( relation @ SV128 )
        = $false )
      | ( ( relation @ SV29 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1111]) ).

thf(1127,plain,
    ! [SV29: $i,SV128: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK12_SY297 @ SV128 @ SV29 ) @ ( sK13_SY302 @ SV29 @ SV128 ) ) @ SV29 ) )
        = $false )
      | ( ( subset @ SV29 @ SV128 )
        = $true )
      | ( ( relation @ SV128 )
        = $false )
      | ( ( relation @ SV29 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1112]) ).

thf(1128,plain,
    ! [SV29: $i,SV128: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK12_SY297 @ SV128 @ SV29 ) @ ( sK13_SY302 @ SV29 @ SV128 ) ) @ SV128 )
        = $false )
      | ( ( subset @ SV29 @ SV128 )
        = $true )
      | ( ( relation @ SV128 )
        = $false )
      | ( ( relation @ SV29 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1112]) ).

thf(1129,plain,
    ! [SV41: $i,SV143: $i] :
      ( ( ! [SY303: $i] :
            ( ~ ~ ( ~ ( in @ SV143 @ ( sK5_SY221 @ SV41 ) )
                  | ~ ( subset @ SY303 @ SV143 ) )
            | ( in @ SY303 @ ( sK5_SY221 @ SV41 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1116]) ).

thf(1130,plain,
    ! [SV41: $i,SV139: $i] :
      ( ( ( ~ ( in @ SV139 @ ( sK5_SY221 @ SV41 ) ) )
        = $true )
      | ( ( ~ ! [SY299: $i] :
                ~ ~ ( ~ ( in @ SY299 @ ( sK5_SY221 @ SV41 ) )
                    | ~ ! [SY300: $i] :
                          ( ~ ( subset @ SY300 @ SV139 )
                          | ( in @ SY300 @ SY299 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1117]) ).

thf(1131,plain,
    ! [SV41: $i,SV137: $i] :
      ( ( ( ~ ( subset @ SV137 @ ( sK5_SY221 @ SV41 ) ) )
        = $true )
      | ( ( ~ ~ ( are_equipotent @ SV137 @ ( sK5_SY221 @ SV41 ) ) )
        = $true )
      | ( ( ~ ~ ( in @ SV137 @ ( sK5_SY221 @ SV41 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1118]) ).

thf(1132,plain,
    ! [SV55: $i,SV144: $i] :
      ( ( ! [SY304: $i] :
            ( ~ ~ ( ~ ( in @ SV144 @ ( sK6_SY246 @ SV55 ) )
                  | ~ ( subset @ SY304 @ SV144 ) )
            | ( in @ SY304 @ ( sK6_SY246 @ SV55 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1120]) ).

thf(1133,plain,
    ! [SV55: $i,SV138: $i] :
      ( ( ( ~ ( subset @ SV138 @ ( sK6_SY246 @ SV55 ) ) )
        = $true )
      | ( ( ~ ~ ( are_equipotent @ SV138 @ ( sK6_SY246 @ SV55 ) ) )
        = $true )
      | ( ( ~ ~ ( in @ SV138 @ ( sK6_SY246 @ SV55 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1122]) ).

thf(1134,plain,
    ! [SV70: $i,SV12: $i] :
      ( ( ( ~ ( subset @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV12 ) )
        = $false )
      | ( ( in @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV70 )
        = $true )
      | ( ( SV70
          = ( powerset @ SV12 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1123]) ).

thf(1135,plain,
    ! [SV70: $i,SV12: $i] :
      ( ( ( in @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV70 )
        = $false )
      | ( ( in @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV70 )
        = $true )
      | ( ( SV70
          = ( powerset @ SV12 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1123]) ).

thf(1136,plain,
    ! [SV70: $i,SV12: $i] :
      ( ( ( subset @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV12 )
        = $true )
      | ( ( subset @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV12 )
        = $false )
      | ( ( SV70
          = ( powerset @ SV12 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1124]) ).

thf(1137,plain,
    ! [SV128: $i,SV29: $i,SV142: $i,SV141: $i] :
      ( ( ( in @ ( ordered_pair @ SV141 @ SV142 ) @ SV29 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV141 @ SV142 ) @ SV128 )
        = $true )
      | ( ( subset @ SV29 @ SV128 )
        = $false )
      | ( ( relation @ SV128 )
        = $false )
      | ( ( relation @ SV29 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1126]) ).

thf(1138,plain,
    ! [SV29: $i,SV128: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK12_SY297 @ SV128 @ SV29 ) @ ( sK13_SY302 @ SV29 @ SV128 ) ) @ SV29 )
        = $true )
      | ( ( subset @ SV29 @ SV128 )
        = $true )
      | ( ( relation @ SV128 )
        = $false )
      | ( ( relation @ SV29 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1127]) ).

thf(1139,plain,
    ! [SV145: $i,SV41: $i,SV143: $i] :
      ( ( ~ ~ ( ~ ( in @ SV143 @ ( sK5_SY221 @ SV41 ) )
              | ~ ( subset @ SV145 @ SV143 ) )
        | ( in @ SV145 @ ( sK5_SY221 @ SV41 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1129]) ).

thf(1140,plain,
    ! [SV41: $i,SV139: $i] :
      ( ( ( in @ SV139 @ ( sK5_SY221 @ SV41 ) )
        = $false )
      | ( ( ~ ! [SY299: $i] :
                ~ ~ ( ~ ( in @ SY299 @ ( sK5_SY221 @ SV41 ) )
                    | ~ ! [SY300: $i] :
                          ( ~ ( subset @ SY300 @ SV139 )
                          | ( in @ SY300 @ SY299 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1130]) ).

thf(1141,plain,
    ! [SV41: $i,SV137: $i] :
      ( ( ( subset @ SV137 @ ( sK5_SY221 @ SV41 ) )
        = $false )
      | ( ( ~ ~ ( are_equipotent @ SV137 @ ( sK5_SY221 @ SV41 ) ) )
        = $true )
      | ( ( ~ ~ ( in @ SV137 @ ( sK5_SY221 @ SV41 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1131]) ).

thf(1142,plain,
    ! [SV146: $i,SV55: $i,SV144: $i] :
      ( ( ~ ~ ( ~ ( in @ SV144 @ ( sK6_SY246 @ SV55 ) )
              | ~ ( subset @ SV146 @ SV144 ) )
        | ( in @ SV146 @ ( sK6_SY246 @ SV55 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1132]) ).

thf(1143,plain,
    ! [SV55: $i,SV138: $i] :
      ( ( ( subset @ SV138 @ ( sK6_SY246 @ SV55 ) )
        = $false )
      | ( ( ~ ~ ( are_equipotent @ SV138 @ ( sK6_SY246 @ SV55 ) ) )
        = $true )
      | ( ( ~ ~ ( in @ SV138 @ ( sK6_SY246 @ SV55 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1133]) ).

thf(1144,plain,
    ! [SV70: $i,SV12: $i] :
      ( ( ( subset @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV12 )
        = $true )
      | ( ( in @ ( sK10_SY261 @ SV12 @ SV70 ) @ SV70 )
        = $true )
      | ( ( SV70
          = ( powerset @ SV12 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1134]) ).

thf(1145,plain,
    ! [SV145: $i,SV41: $i,SV143: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV143 @ ( sK5_SY221 @ SV41 ) )
                | ~ ( subset @ SV145 @ SV143 ) ) )
        = $true )
      | ( ( in @ SV145 @ ( sK5_SY221 @ SV41 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1139]) ).

thf(1146,plain,
    ! [SV139: $i,SV41: $i] :
      ( ( ( ! [SY299: $i] :
              ~ ~ ( ~ ( in @ SY299 @ ( sK5_SY221 @ SV41 ) )
                  | ~ ! [SY300: $i] :
                        ( ~ ( subset @ SY300 @ SV139 )
                        | ( in @ SY300 @ SY299 ) ) ) )
        = $false )
      | ( ( in @ SV139 @ ( sK5_SY221 @ SV41 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1140]) ).

thf(1147,plain,
    ! [SV41: $i,SV137: $i] :
      ( ( ( ~ ( are_equipotent @ SV137 @ ( sK5_SY221 @ SV41 ) ) )
        = $false )
      | ( ( subset @ SV137 @ ( sK5_SY221 @ SV41 ) )
        = $false )
      | ( ( ~ ~ ( in @ SV137 @ ( sK5_SY221 @ SV41 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1141]) ).

thf(1148,plain,
    ! [SV146: $i,SV55: $i,SV144: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV144 @ ( sK6_SY246 @ SV55 ) )
                | ~ ( subset @ SV146 @ SV144 ) ) )
        = $true )
      | ( ( in @ SV146 @ ( sK6_SY246 @ SV55 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1142]) ).

thf(1149,plain,
    ! [SV55: $i,SV138: $i] :
      ( ( ( ~ ( are_equipotent @ SV138 @ ( sK6_SY246 @ SV55 ) ) )
        = $false )
      | ( ( subset @ SV138 @ ( sK6_SY246 @ SV55 ) )
        = $false )
      | ( ( ~ ~ ( in @ SV138 @ ( sK6_SY246 @ SV55 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1143]) ).

thf(1150,plain,
    ! [SV145: $i,SV41: $i,SV143: $i] :
      ( ( ( ~ ( ~ ( in @ SV143 @ ( sK5_SY221 @ SV41 ) )
              | ~ ( subset @ SV145 @ SV143 ) ) )
        = $false )
      | ( ( in @ SV145 @ ( sK5_SY221 @ SV41 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1145]) ).

thf(1151,plain,
    ! [SV41: $i,SV139: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK14_SY299 @ SV139 @ SV41 ) @ ( sK5_SY221 @ SV41 ) )
                | ~ ! [SY305: $i] :
                      ( ~ ( subset @ SY305 @ SV139 )
                      | ( in @ SY305 @ ( sK14_SY299 @ SV139 @ SV41 ) ) ) ) )
        = $false )
      | ( ( in @ SV139 @ ( sK5_SY221 @ SV41 ) )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[1146]) ).

thf(1152,plain,
    ! [SV41: $i,SV137: $i] :
      ( ( ( are_equipotent @ SV137 @ ( sK5_SY221 @ SV41 ) )
        = $true )
      | ( ( subset @ SV137 @ ( sK5_SY221 @ SV41 ) )
        = $false )
      | ( ( ~ ~ ( in @ SV137 @ ( sK5_SY221 @ SV41 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1147]) ).

thf(1153,plain,
    ! [SV146: $i,SV55: $i,SV144: $i] :
      ( ( ( ~ ( ~ ( in @ SV144 @ ( sK6_SY246 @ SV55 ) )
              | ~ ( subset @ SV146 @ SV144 ) ) )
        = $false )
      | ( ( in @ SV146 @ ( sK6_SY246 @ SV55 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1148]) ).

thf(1154,plain,
    ! [SV55: $i,SV138: $i] :
      ( ( ( are_equipotent @ SV138 @ ( sK6_SY246 @ SV55 ) )
        = $true )
      | ( ( subset @ SV138 @ ( sK6_SY246 @ SV55 ) )
        = $false )
      | ( ( ~ ~ ( in @ SV138 @ ( sK6_SY246 @ SV55 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1149]) ).

thf(1155,plain,
    ! [SV145: $i,SV41: $i,SV143: $i] :
      ( ( ( ~ ( in @ SV143 @ ( sK5_SY221 @ SV41 ) )
          | ~ ( subset @ SV145 @ SV143 ) )
        = $true )
      | ( ( in @ SV145 @ ( sK5_SY221 @ SV41 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1150]) ).

thf(1156,plain,
    ! [SV41: $i,SV139: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK14_SY299 @ SV139 @ SV41 ) @ ( sK5_SY221 @ SV41 ) )
              | ~ ! [SY305: $i] :
                    ( ~ ( subset @ SY305 @ SV139 )
                    | ( in @ SY305 @ ( sK14_SY299 @ SV139 @ SV41 ) ) ) ) )
        = $true )
      | ( ( in @ SV139 @ ( sK5_SY221 @ SV41 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1151]) ).

thf(1157,plain,
    ! [SV41: $i,SV137: $i] :
      ( ( ( ~ ( in @ SV137 @ ( sK5_SY221 @ SV41 ) ) )
        = $false )
      | ( ( subset @ SV137 @ ( sK5_SY221 @ SV41 ) )
        = $false )
      | ( ( are_equipotent @ SV137 @ ( sK5_SY221 @ SV41 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1152]) ).

thf(1158,plain,
    ! [SV146: $i,SV55: $i,SV144: $i] :
      ( ( ( ~ ( in @ SV144 @ ( sK6_SY246 @ SV55 ) )
          | ~ ( subset @ SV146 @ SV144 ) )
        = $true )
      | ( ( in @ SV146 @ ( sK6_SY246 @ SV55 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1153]) ).

thf(1159,plain,
    ! [SV55: $i,SV138: $i] :
      ( ( ( ~ ( in @ SV138 @ ( sK6_SY246 @ SV55 ) ) )
        = $false )
      | ( ( subset @ SV138 @ ( sK6_SY246 @ SV55 ) )
        = $false )
      | ( ( are_equipotent @ SV138 @ ( sK6_SY246 @ SV55 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1154]) ).

thf(1160,plain,
    ! [SV145: $i,SV41: $i,SV143: $i] :
      ( ( ( ~ ( in @ SV143 @ ( sK5_SY221 @ SV41 ) ) )
        = $true )
      | ( ( ~ ( subset @ SV145 @ SV143 ) )
        = $true )
      | ( ( in @ SV145 @ ( sK5_SY221 @ SV41 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1155]) ).

thf(1161,plain,
    ! [SV41: $i,SV139: $i] :
      ( ( ( ~ ( in @ ( sK14_SY299 @ SV139 @ SV41 ) @ ( sK5_SY221 @ SV41 ) )
          | ~ ! [SY305: $i] :
                ( ~ ( subset @ SY305 @ SV139 )
                | ( in @ SY305 @ ( sK14_SY299 @ SV139 @ SV41 ) ) ) )
        = $false )
      | ( ( in @ SV139 @ ( sK5_SY221 @ SV41 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1156]) ).

thf(1162,plain,
    ! [SV41: $i,SV137: $i] :
      ( ( ( in @ SV137 @ ( sK5_SY221 @ SV41 ) )
        = $true )
      | ( ( subset @ SV137 @ ( sK5_SY221 @ SV41 ) )
        = $false )
      | ( ( are_equipotent @ SV137 @ ( sK5_SY221 @ SV41 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1157]) ).

thf(1163,plain,
    ! [SV146: $i,SV55: $i,SV144: $i] :
      ( ( ( ~ ( in @ SV144 @ ( sK6_SY246 @ SV55 ) ) )
        = $true )
      | ( ( ~ ( subset @ SV146 @ SV144 ) )
        = $true )
      | ( ( in @ SV146 @ ( sK6_SY246 @ SV55 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1158]) ).

thf(1164,plain,
    ! [SV55: $i,SV138: $i] :
      ( ( ( in @ SV138 @ ( sK6_SY246 @ SV55 ) )
        = $true )
      | ( ( subset @ SV138 @ ( sK6_SY246 @ SV55 ) )
        = $false )
      | ( ( are_equipotent @ SV138 @ ( sK6_SY246 @ SV55 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1159]) ).

thf(1165,plain,
    ! [SV145: $i,SV41: $i,SV143: $i] :
      ( ( ( in @ SV143 @ ( sK5_SY221 @ SV41 ) )
        = $false )
      | ( ( ~ ( subset @ SV145 @ SV143 ) )
        = $true )
      | ( ( in @ SV145 @ ( sK5_SY221 @ SV41 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1160]) ).

thf(1166,plain,
    ! [SV41: $i,SV139: $i] :
      ( ( ( ~ ( in @ ( sK14_SY299 @ SV139 @ SV41 ) @ ( sK5_SY221 @ SV41 ) ) )
        = $false )
      | ( ( in @ SV139 @ ( sK5_SY221 @ SV41 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1161]) ).

thf(1167,plain,
    ! [SV41: $i,SV139: $i] :
      ( ( ( ~ ! [SY305: $i] :
                ( ~ ( subset @ SY305 @ SV139 )
                | ( in @ SY305 @ ( sK14_SY299 @ SV139 @ SV41 ) ) ) )
        = $false )
      | ( ( in @ SV139 @ ( sK5_SY221 @ SV41 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1161]) ).

thf(1168,plain,
    ! [SV146: $i,SV55: $i,SV144: $i] :
      ( ( ( in @ SV144 @ ( sK6_SY246 @ SV55 ) )
        = $false )
      | ( ( ~ ( subset @ SV146 @ SV144 ) )
        = $true )
      | ( ( in @ SV146 @ ( sK6_SY246 @ SV55 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1163]) ).

thf(1169,plain,
    ! [SV41: $i,SV143: $i,SV145: $i] :
      ( ( ( subset @ SV145 @ SV143 )
        = $false )
      | ( ( in @ SV143 @ ( sK5_SY221 @ SV41 ) )
        = $false )
      | ( ( in @ SV145 @ ( sK5_SY221 @ SV41 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1165]) ).

thf(1170,plain,
    ! [SV41: $i,SV139: $i] :
      ( ( ( in @ ( sK14_SY299 @ SV139 @ SV41 ) @ ( sK5_SY221 @ SV41 ) )
        = $true )
      | ( ( in @ SV139 @ ( sK5_SY221 @ SV41 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1166]) ).

thf(1171,plain,
    ! [SV41: $i,SV139: $i] :
      ( ( ( ! [SY305: $i] :
              ( ~ ( subset @ SY305 @ SV139 )
              | ( in @ SY305 @ ( sK14_SY299 @ SV139 @ SV41 ) ) ) )
        = $true )
      | ( ( in @ SV139 @ ( sK5_SY221 @ SV41 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1167]) ).

thf(1172,plain,
    ! [SV55: $i,SV144: $i,SV146: $i] :
      ( ( ( subset @ SV146 @ SV144 )
        = $false )
      | ( ( in @ SV144 @ ( sK6_SY246 @ SV55 ) )
        = $false )
      | ( ( in @ SV146 @ ( sK6_SY246 @ SV55 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1168]) ).

thf(1173,plain,
    ! [SV41: $i,SV139: $i,SV147: $i] :
      ( ( ( ~ ( subset @ SV147 @ SV139 )
          | ( in @ SV147 @ ( sK14_SY299 @ SV139 @ SV41 ) ) )
        = $true )
      | ( ( in @ SV139 @ ( sK5_SY221 @ SV41 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1171]) ).

thf(1174,plain,
    ! [SV41: $i,SV139: $i,SV147: $i] :
      ( ( ( ~ ( subset @ SV147 @ SV139 ) )
        = $true )
      | ( ( in @ SV147 @ ( sK14_SY299 @ SV139 @ SV41 ) )
        = $true )
      | ( ( in @ SV139 @ ( sK5_SY221 @ SV41 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1173]) ).

thf(1175,plain,
    ! [SV41: $i,SV139: $i,SV147: $i] :
      ( ( ( subset @ SV147 @ SV139 )
        = $false )
      | ( ( in @ SV147 @ ( sK14_SY299 @ SV139 @ SV41 ) )
        = $true )
      | ( ( in @ SV139 @ ( sK5_SY221 @ SV41 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1174]) ).

thf(1176,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[477,1175,1172,1170,1169,1164,1162,1144,1138,1137,1136,1135,1128,1125,1121,1119,1115,1114,1113,1108,1107,1102,1093,1085,1083,1079,1078,1072,1071,1064,1062,1061,1058,1050,1049,1026,1024,1019,1016,1015,1014,1013,1010,1009,1006,1005,999,998,997,992,991,990,984,983,979,978,976,970,969,966,965,959,945,944,941,940,935,934,926,925,919,918,917,915,914,906,862,853,850,841,829,817,800,798,796,792,782,780,772,761,760,757,751,750,745,741,726,628,627,626,625,569,565,507,506,498,497,496,495,494,493,492,491,490,489,488,487,486,485,484,483,482,481,480,479,478]) ).

thf(1177,plain,
    $false,
    inference(solved_all_splits,[solved_all_splits(join,[])],[1176]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02  % Problem  : SEU264+2 : TPTP v9.3.1. Released v3.3.0.
% 0.00/0.04  % Command  : leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.08/0.17  % Computer : n014.cluster.edu
% 0.08/0.17  % Model    : x86_64 x86_64
% 0.08/0.17  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.08/0.17  % Memory   : 8046.5625MB
% 0.08/0.17  % OS       : Linux 6.8.0-71-generic
% 0.08/0.17  % CPULimit : 300
% 0.08/0.17  % WCLimit  : 300
% 0.08/0.17  % DateTime : Tue Oct  6 15:10:11 UTC 2026
% 0.08/0.18  % CPUTime  : 
% 0.08/0.18  Running leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p
% 37.79/6.52  ..
% 37.79/6.52  
% 37.79/6.52   No.of.Axioms: 82
% 37.79/6.52  
% 37.79/6.52   Length.of.Defs: 0
% 37.79/6.52  
% 37.79/6.52   Contains.Choice.Funs: false
% 37.79/6.52  ...............................
% 37.79/6.52  
% 37.79/6.52  ********************************
% 37.79/6.52  *   All subproblems solved!    *
% 37.79/6.52  ********************************
% 37.79/6.52  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:1,axioms:84,ps:0,u:6,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:false,expand_extuni:false,foatp:e,atp_timeout:299,atp_calls_frequency:5,ordering:none,proof_output:1,protocol_output:false,clause_count:1176,loop_count:0,foatp_calls:1,translation:fof_full)
% 37.79/6.52  
% 37.79/6.52  %**** Beginning of derivation protocol ****
% 37.79/6.52  % SZS output start CNFRefutation
% See solution above
% 37.79/6.53  
% 37.79/6.53  %**** End of derivation protocol ****
% 37.79/6.53  %**** no. of clauses in derivation: 929 ****
% 37.79/6.53  %**** clause counter: 1176 ****
% 37.79/6.53  
% 37.79/6.53  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:1,axioms:84,ps:0,u:6,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:false,expand_extuni:false,foatp:e,atp_timeout:299,atp_calls_frequency:5,ordering:none,proof_output:1,protocol_output:false,clause_count:1176,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------