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LEO-II---2.3.1.UNS-CRf.s

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%------------------------------------------------------------------------------
% File     : LEO-II---2.3.1
% Problem  : SET101-7 : TPTP v9.3.1. Bugfixed v2.1.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox2/solver/bin/eprover /export/starexec/sandbox2/benchmark/theBenchmark.p

% Computer : n018.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 10:39:35 AM UTC 2026

% Result   : Unsatisfiable 11.32s 2.21s
% Output   : CNFRefutation 11.32s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   16
%            Number of leaves      :  147
% Syntax   : Number of formulae    : 1045 ( 625 unt;   0 typ;   0 def)
%            Number of atoms       : 4991 (1952 equ;   0 cnn)
%            Maximal formula atoms :    5 (   4 avg)
%            Number of connectives : 10239 ( 941   ~;1326   |;   0   &;7972   @)
%                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   14 (   3 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   54 (  51 usr;  12 con; 0-3 aty)
%            Number of variables   : 2270 (   0   ^;2270   !;   0   ?;2270   :)

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

thf(tp_cantor,type,
    cantor: $i > $i ).

thf(tp_choice,type,
    choice: $i ).

thf(tp_compatible,type,
    compatible: $i > $i > $i > $o ).

thf(tp_complement,type,
    complement: $i > $i ).

thf(tp_compose,type,
    compose: $i > $i > $i ).

thf(tp_cross_product,type,
    cross_product: $i > $i > $i ).

thf(tp_diagonalise,type,
    diagonalise: $i > $i ).

thf(tp_domain,type,
    domain: $i > $i > $i > $i ).

thf(tp_domain_of,type,
    domain_of: $i > $i ).

thf(tp_element_relation,type,
    element_relation: $i ).

thf(tp_first,type,
    first: $i > $i ).

thf(tp_flip,type,
    flip: $i > $i ).

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

thf(tp_homomorphism,type,
    homomorphism: $i > $i > $i > $o ).

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

thf(tp_image,type,
    image: $i > $i > $i ).

thf(tp_inductive,type,
    inductive: $i > $o ).

thf(tp_intersection,type,
    intersection: $i > $i > $i ).

thf(tp_inverse,type,
    inverse: $i > $i ).

thf(tp_member,type,
    member: $i > $i > $o ).

thf(tp_member_of,type,
    member_of: $i > $i ).

thf(tp_member_of1,type,
    member_of1: $i > $i ).

thf(tp_not_homomorphism1,type,
    not_homomorphism1: $i > $i > $i > $i ).

thf(tp_not_homomorphism2,type,
    not_homomorphism2: $i > $i > $i > $i ).

thf(tp_not_subclass_element,type,
    not_subclass_element: $i > $i > $i ).

thf(tp_null_class,type,
    null_class: $i ).

thf(tp_omega,type,
    omega: $i ).

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

thf(tp_operation,type,
    operation: $i > $o ).

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

thf(tp_power_class,type,
    power_class: $i > $i ).

thf(tp_range,type,
    range: $i > $i > $i > $i ).

thf(tp_range_of,type,
    range_of: $i > $i ).

thf(tp_regular,type,
    regular: $i > $i ).

thf(tp_restrict,type,
    restrict: $i > $i > $i > $i ).

thf(tp_rotate,type,
    rotate: $i > $i ).

thf(tp_second,type,
    second: $i > $i ).

thf(tp_single_valued_class,type,
    single_valued_class: $i > $o ).

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

thf(tp_subclass,type,
    subclass: $i > $i > $o ).

thf(tp_subset_relation,type,
    subset_relation: $i ).

thf(tp_successor,type,
    successor: $i > $i ).

thf(tp_successor_relation,type,
    successor_relation: $i ).

thf(tp_sum_class,type,
    sum_class: $i > $i ).

thf(tp_symmetric_difference,type,
    symmetric_difference: $i > $i > $i ).

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

thf(tp_universal_class,type,
    universal_class: $i ).

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

thf(tp_x,type,
    x: $i ).

thf(tp_y,type,
    y: $i ).

thf(1,axiom,
    ! [X: $i,Y: $i] : ( member @ ( ordered_pair @ X @ Y ) @ universal_class ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',ordered_pair_is_set) ).

thf(2,axiom,
    ! [X: $i,Y: $i] :
      ( ( unordered_pair @ X @ Y )
      = ( union @ ( singleton @ X ) @ ( singleton @ Y ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',unordered_pairs_and_singletons) ).

thf(3,axiom,
    ! [X: $i] :
      ( ( ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ X @ null_class ) ) ) @ X ) @ null_class )
       != ( not_subclass_element @ X @ null_class ) )
      | ( ( singleton @ ( not_subclass_element @ X @ null_class ) )
        = X )
      | ( X = null_class ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',corollary_1_to_number_of_elements_in_class) ).

thf(4,axiom,
    ! [X: $i] :
      ( ( member @ ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ X @ null_class ) ) ) @ X ) @ null_class ) @ X )
      | ( ( singleton @ ( not_subclass_element @ X @ null_class ) )
        = X )
      | ( X = null_class ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',corollary_2_to_number_of_elements_in_class) ).

thf(5,axiom,
    ! [X: $i] :
      ( ( member @ ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ X @ null_class ) ) ) @ X ) @ null_class ) @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ X @ null_class ) ) ) @ X ) )
      | ( ( singleton @ ( not_subclass_element @ X @ null_class ) )
        = X )
      | ( X = null_class ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',number_of_elements_in_class) ).

thf(6,axiom,
    ! [X: $i,Y: $i] :
      ( ~ ( subclass @ X @ ( singleton @ Y ) )
      | ( X = null_class )
      | ( ( singleton @ Y )
        = X ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',two_subsets_of_singleton) ).

thf(7,axiom,
    ! [X: $i,Y: $i] :
      ( ~ ( member @ X @ Y )
      | ( subclass @ ( singleton @ X ) @ Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',property_of_singletons2) ).

thf(8,axiom,
    ! [X: $i,Y: $i] :
      ( ( ( singleton @ ( member_of @ X ) )
       != X )
      | ~ ( member @ Y @ X )
      | ( ( member_of @ X )
        = Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',property_of_singletons1) ).

thf(9,axiom,
    ! [X: $i] :
      ( ( ( singleton @ ( member_of @ X ) )
       != X )
      | ( member @ X @ universal_class ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',corollary_2_to_singletons_are_sets) ).

thf(10,axiom,
    ! [X: $i] :
      ( ( ( singleton @ ( member_of1 @ X ) )
        = X )
      | ( ( member_of @ X )
        = X ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',member_of_non_singleton_unique2) ).

thf(11,axiom,
    ! [X: $i] :
      ( ( member @ ( member_of1 @ X ) @ universal_class )
      | ( ( member_of @ X )
        = X ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',member_of_non_singleton_unique1) ).

thf(12,axiom,
    ! [U: $i] :
      ( ~ ( member @ U @ universal_class )
      | ( ( member_of @ ( singleton @ U ) )
        = U ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',member_of_singleton_is_unique) ).

thf(13,axiom,
    ! [X: $i] :
      ( ( ( singleton @ ( member_of @ X ) )
        = X )
      | ( ( member_of @ X )
        = X ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',member_exists4) ).

thf(14,axiom,
    ! [X: $i] :
      ( ( member @ ( member_of @ X ) @ universal_class )
      | ( ( member_of @ X )
        = X ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',member_exists3) ).

thf(15,axiom,
    ! [Y: $i] :
      ( ~ ( member @ Y @ universal_class )
      | ( ( singleton @ ( member_of @ ( singleton @ Y ) ) )
        = ( singleton @ Y ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',member_exists2) ).

thf(16,axiom,
    ! [Y: $i] :
      ( ~ ( member @ Y @ universal_class )
      | ( member @ ( member_of @ ( singleton @ Y ) ) @ universal_class ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',member_exists1) ).

thf(17,axiom,
    ! [Y: $i,Z: $i,X: $i] :
      ( ( ( unordered_pair @ Y @ Z )
       != ( singleton @ X ) )
      | ~ ( member @ X @ universal_class )
      | ( X = Y )
      | ( X = Z ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',singleton_in_unordered_pair3) ).

thf(18,axiom,
    ! [X: $i,Y: $i] :
      ( ( ( singleton @ X )
       != ( singleton @ Y ) )
      | ~ ( member @ Y @ universal_class )
      | ( X = Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',singleton_identified_by_element2) ).

thf(19,axiom,
    ! [X: $i,Y: $i] :
      ( ( ( singleton @ X )
       != ( singleton @ Y ) )
      | ~ ( member @ X @ universal_class )
      | ( X = Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',singleton_identified_by_element1) ).

thf(20,axiom,
    ! [X: $i] :
      ( ( member @ X @ universal_class )
      | ( ( singleton @ X )
        = null_class ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',singleton_is_null_class) ).

thf(21,axiom,
    ! [Y: $i,X: $i] :
      ( ~ ( member @ Y @ ( singleton @ X ) )
      | ( Y = X ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',only_member_in_singleton) ).

thf(22,axiom,
    member @ null_class @ ( singleton @ null_class ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',null_class_in_its_singleton) ).

thf(23,axiom,
    ! [X: $i] :
      ( ~ ( member @ X @ universal_class )
      | ( ( singleton @ X )
       != null_class ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',corollary_to_set_in_its_singleton) ).

thf(24,axiom,
    ! [X: $i] :
      ( ~ ( member @ X @ universal_class )
      | ( member @ X @ ( singleton @ X ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',set_in_its_singleton) ).

thf(25,axiom,
    ! [Y: $i,X: $i] : ( member @ ( singleton @ Y ) @ ( unordered_pair @ X @ ( singleton @ Y ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',corollary_1_to_singletons_are_sets) ).

thf(26,axiom,
    ! [X: $i] : ( member @ ( singleton @ X ) @ universal_class ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',singletons_are_sets) ).

thf(27,axiom,
    ! [X: $i,Z: $i,Y: $i] :
      ( ~ ( member @ X @ Z )
      | ~ ( member @ Y @ Z )
      | ( subclass @ ( unordered_pair @ X @ Y ) @ Z ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',unordered_pair_is_subset) ).

thf(28,axiom,
    ! [X: $i,Y: $i,U: $i,V: $i] :
      ( ~ ( member @ ( ordered_pair @ X @ Y ) @ ( cross_product @ U @ V ) )
      | ( ( unordered_pair @ X @ Y )
       != null_class ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',corollary_to_unordered_pair_axiom3) ).

thf(29,axiom,
    ! [Y: $i,X: $i] :
      ( ~ ( member @ Y @ universal_class )
      | ( ( unordered_pair @ X @ Y )
       != null_class ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',corollary_to_unordered_pair_axiom2) ).

thf(30,axiom,
    ! [X: $i,Y: $i] :
      ( ~ ( member @ X @ universal_class )
      | ( ( unordered_pair @ X @ Y )
       != null_class ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',corollary_to_unordered_pair_axiom1) ).

thf(31,axiom,
    ! [X: $i,Z: $i,Y: $i] :
      ( ( ( unordered_pair @ X @ Z )
       != ( unordered_pair @ Y @ Z ) )
      | ~ ( member @ ( ordered_pair @ X @ Y ) @ ( cross_product @ universal_class @ universal_class ) )
      | ( X = Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',right_cancellation) ).

thf(32,axiom,
    ! [X: $i,Y: $i,Z: $i] :
      ( ( ( unordered_pair @ X @ Y )
       != ( unordered_pair @ X @ Z ) )
      | ~ ( member @ ( ordered_pair @ Y @ Z ) @ ( cross_product @ universal_class @ universal_class ) )
      | ( Y = Z ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',left_cancellation) ).

thf(33,axiom,
    ! [X: $i,Y: $i] :
      ( ( ( unordered_pair @ X @ Y )
        = null_class )
      | ( member @ X @ universal_class )
      | ( member @ Y @ universal_class ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',null_unordered_pair) ).

thf(34,axiom,
    ! [X: $i,Y: $i] :
      ( ( member @ X @ universal_class )
      | ( ( unordered_pair @ X @ Y )
        = ( singleton @ Y ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',unordered_pair_equals_singleton2) ).

thf(35,axiom,
    ! [Y: $i,X: $i] :
      ( ( member @ Y @ universal_class )
      | ( ( unordered_pair @ X @ Y )
        = ( singleton @ X ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',unordered_pair_equals_singleton1) ).

thf(36,axiom,
    ! [Y: $i,X: $i] : ( subclass @ ( singleton @ Y ) @ ( unordered_pair @ X @ Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',singleton_in_unordered_pair2) ).

thf(37,axiom,
    ! [X: $i,Y: $i] : ( subclass @ ( singleton @ X ) @ ( unordered_pair @ X @ Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',singleton_in_unordered_pair1) ).

thf(38,axiom,
    ! [X: $i,Y: $i] :
      ( ( unordered_pair @ X @ Y )
      = ( unordered_pair @ Y @ X ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',commutativity_of_unordered_pair) ).

thf(39,axiom,
    member @ null_class @ universal_class,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',null_class_is_a_set) ).

thf(40,axiom,
    ! [Z: $i] :
      ( ( Z = null_class )
      | ( member @ ( not_subclass_element @ Z @ null_class ) @ Z ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',null_class_is_unique) ).

thf(41,axiom,
    ! [X: $i] :
      ( ~ ( subclass @ X @ null_class )
      | ( X = null_class ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',corollary_of_null_class_is_subclass) ).

thf(42,axiom,
    ! [X: $i] : ( subclass @ null_class @ X ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',null_class_is_subclass) ).

thf(43,axiom,
    ! [Z: $i] :
      ~ ( member @ Z @ null_class ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',existence_of_null_class) ).

thf(44,axiom,
    ! [Y: $i,X: $i] :
      ~ ( member @ Y @ ( intersection @ ( complement @ X ) @ X ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',special_classes_lemma) ).

thf(45,axiom,
    ! [X: $i,Y: $i] :
      ( ~ ( member @ ( not_subclass_element @ X @ Y ) @ Y )
      | ~ ( member @ ( not_subclass_element @ Y @ X ) @ X )
      | ( X = Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',equality4) ).

thf(46,axiom,
    ! [Y: $i,X: $i] :
      ( ~ ( member @ ( not_subclass_element @ Y @ X ) @ X )
      | ( X = Y )
      | ( member @ ( not_subclass_element @ X @ Y ) @ X ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',equality3) ).

thf(47,axiom,
    ! [X: $i,Y: $i] :
      ( ~ ( member @ ( not_subclass_element @ X @ Y ) @ Y )
      | ( X = Y )
      | ( member @ ( not_subclass_element @ Y @ X ) @ Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',equality2) ).

thf(48,axiom,
    ! [X: $i,Y: $i] :
      ( ( X = Y )
      | ( member @ ( not_subclass_element @ X @ Y ) @ X )
      | ( member @ ( not_subclass_element @ Y @ X ) @ Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',equality1) ).

thf(49,axiom,
    ! [X: $i,Y: $i,Z: $i] :
      ( ~ ( subclass @ X @ Y )
      | ~ ( subclass @ Y @ Z )
      | ( subclass @ X @ Z ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',transitivity_of_subclass) ).

thf(50,axiom,
    ! [X: $i] : ( subclass @ X @ X ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',subclass_is_reflexive) ).

thf(51,axiom,
    ! [U: $i,V: $i,X: $i,Y: $i] :
      ( ~ ( member @ ( ordered_pair @ U @ V ) @ ( cross_product @ X @ Y ) )
      | ( member @ V @ universal_class ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',corollary_2_to_cartesian_product) ).

thf(52,axiom,
    ! [U: $i,V: $i,X: $i,Y: $i] :
      ( ~ ( member @ ( ordered_pair @ U @ V ) @ ( cross_product @ X @ Y ) )
      | ( member @ U @ universal_class ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',corollary_1_to_cartesian_product) ).

thf(53,axiom,
    ! [X: $i,Y: $i,U: $i,V: $i] :
      ( ~ ( member @ ( ordered_pair @ X @ Y ) @ ( cross_product @ U @ V ) )
      | ( member @ Y @ ( unordered_pair @ X @ Y ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',corollary_2_to_unordered_pair) ).

thf(54,axiom,
    ! [X: $i,Y: $i,U: $i,V: $i] :
      ( ~ ( member @ ( ordered_pair @ X @ Y ) @ ( cross_product @ U @ V ) )
      | ( member @ X @ ( unordered_pair @ X @ Y ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',corollary_1_to_unordered_pair) ).

thf(55,axiom,
    ! [Xf1: $i,Xf2: $i,Xh: $i] :
      ( ~ ( operation @ Xf1 )
      | ~ ( operation @ Xf2 )
      | ~ ( compatible @ Xh @ Xf1 @ Xf2 )
      | ( ( apply @ Xf2 @ ( ordered_pair @ ( apply @ Xh @ ( not_homomorphism1 @ Xh @ Xf1 @ Xf2 ) ) @ ( apply @ Xh @ ( not_homomorphism2 @ Xh @ Xf1 @ Xf2 ) ) ) )
       != ( apply @ Xh @ ( apply @ Xf1 @ ( ordered_pair @ ( not_homomorphism1 @ Xh @ Xf1 @ Xf2 ) @ ( not_homomorphism2 @ Xh @ Xf1 @ Xf2 ) ) ) ) )
      | ( homomorphism @ Xh @ Xf1 @ Xf2 ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',homomorphism6) ).

thf(56,axiom,
    ! [Xf1: $i,Xf2: $i,Xh: $i] :
      ( ~ ( operation @ Xf1 )
      | ~ ( operation @ Xf2 )
      | ~ ( compatible @ Xh @ Xf1 @ Xf2 )
      | ( member @ ( ordered_pair @ ( not_homomorphism1 @ Xh @ Xf1 @ Xf2 ) @ ( not_homomorphism2 @ Xh @ Xf1 @ Xf2 ) ) @ ( domain_of @ Xf1 ) )
      | ( homomorphism @ Xh @ Xf1 @ Xf2 ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',homomorphism5) ).

thf(57,axiom,
    ! [Xh: $i,Xf1: $i,Xf2: $i,X: $i,Y: $i] :
      ( ~ ( homomorphism @ Xh @ Xf1 @ Xf2 )
      | ~ ( member @ ( ordered_pair @ X @ Y ) @ ( domain_of @ Xf1 ) )
      | ( ( apply @ Xf2 @ ( ordered_pair @ ( apply @ Xh @ X ) @ ( apply @ Xh @ Y ) ) )
        = ( apply @ Xh @ ( apply @ Xf1 @ ( ordered_pair @ X @ Y ) ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',homomorphism4) ).

thf(58,axiom,
    ! [Xh: $i,Xf1: $i,Xf2: $i] :
      ( ~ ( homomorphism @ Xh @ Xf1 @ Xf2 )
      | ( compatible @ Xh @ Xf1 @ Xf2 ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',homomorphism3) ).

thf(59,axiom,
    ! [Xh: $i,Xf1: $i,Xf2: $i] :
      ( ~ ( homomorphism @ Xh @ Xf1 @ Xf2 )
      | ( operation @ Xf2 ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',homomorphism2) ).

thf(60,axiom,
    ! [Xh: $i,Xf1: $i,Xf2: $i] :
      ( ~ ( homomorphism @ Xh @ Xf1 @ Xf2 )
      | ( operation @ Xf1 ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',homomorphism1) ).

thf(61,axiom,
    ! [Xh: $i,Xf1: $i,Xf2: $i] :
      ( ~ ( function @ Xh )
      | ( ( domain_of @ ( domain_of @ Xf1 ) )
       != ( domain_of @ Xh ) )
      | ~ ( subclass @ ( range_of @ Xh ) @ ( domain_of @ ( domain_of @ Xf2 ) ) )
      | ( compatible @ Xh @ Xf1 @ Xf2 ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',compatible4) ).

thf(62,axiom,
    ! [Xh: $i,Xf1: $i,Xf2: $i] :
      ( ~ ( compatible @ Xh @ Xf1 @ Xf2 )
      | ( subclass @ ( range_of @ Xh ) @ ( domain_of @ ( domain_of @ Xf2 ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',compatible3) ).

thf(63,axiom,
    ! [Xh: $i,Xf1: $i,Xf2: $i] :
      ( ~ ( compatible @ Xh @ Xf1 @ Xf2 )
      | ( ( domain_of @ ( domain_of @ Xf1 ) )
        = ( domain_of @ Xh ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',compatible2) ).

thf(64,axiom,
    ! [Xh: $i,Xf1: $i,Xf2: $i] :
      ( ~ ( compatible @ Xh @ Xf1 @ Xf2 )
      | ( function @ Xh ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',compatible1) ).

thf(65,axiom,
    ! [Xf: $i] :
      ( ~ ( function @ Xf )
      | ( ( cross_product @ ( domain_of @ ( domain_of @ Xf ) ) @ ( domain_of @ ( domain_of @ Xf ) ) )
       != ( domain_of @ Xf ) )
      | ~ ( subclass @ ( range_of @ Xf ) @ ( domain_of @ ( domain_of @ Xf ) ) )
      | ( operation @ Xf ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',operation4) ).

thf(66,axiom,
    ! [Xf: $i] :
      ( ~ ( operation @ Xf )
      | ( subclass @ ( range_of @ Xf ) @ ( domain_of @ ( domain_of @ Xf ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',operation3) ).

thf(67,axiom,
    ! [Xf: $i] :
      ( ~ ( operation @ Xf )
      | ( ( cross_product @ ( domain_of @ ( domain_of @ Xf ) ) @ ( domain_of @ ( domain_of @ Xf ) ) )
        = ( domain_of @ Xf ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',operation2) ).

thf(68,axiom,
    ! [Xf: $i] :
      ( ~ ( operation @ Xf )
      | ( function @ Xf ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',operation1) ).

thf(69,axiom,
    ! [X: $i] :
      ( ( intersection @ ( domain_of @ X ) @ ( diagonalise @ ( compose @ ( inverse @ element_relation ) @ X ) ) )
      = ( cantor @ X ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',cantor_class) ).

thf(70,axiom,
    ! [Xr: $i] :
      ( ( complement @ ( domain_of @ ( intersection @ Xr @ identity_relation ) ) )
      = ( diagonalise @ Xr ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',diagonalisation) ).

thf(71,axiom,
    ( ( intersection @ ( inverse @ subset_relation ) @ subset_relation )
    = identity_relation ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',identity_relation) ).

thf(72,axiom,
    ( ( intersection @ ( cross_product @ universal_class @ universal_class ) @ ( intersection @ ( cross_product @ universal_class @ universal_class ) @ ( complement @ ( compose @ ( complement @ element_relation ) @ ( inverse @ element_relation ) ) ) ) )
    = subset_relation ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',subset_relation) ).

thf(73,axiom,
    ! [Xf: $i] :
      ( ~ ( function @ ( inverse @ Xf ) )
      | ~ ( function @ Xf )
      | ( one_to_one @ Xf ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',one_to_one3) ).

thf(74,axiom,
    ! [Xf: $i] :
      ( ~ ( one_to_one @ Xf )
      | ( function @ ( inverse @ Xf ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',one_to_one2) ).

thf(75,axiom,
    ! [Xf: $i] :
      ( ~ ( one_to_one @ Xf )
      | ( function @ Xf ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',one_to_one1) ).

thf(76,axiom,
    ! [Y: $i] :
      ( ~ ( member @ Y @ universal_class )
      | ( Y = null_class )
      | ( member @ ( apply @ choice @ Y ) @ Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',choice2) ).

thf(77,axiom,
    function @ choice,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',choice1) ).

thf(78,axiom,
    ! [Xf: $i,Y: $i] :
      ( ( sum_class @ ( image @ Xf @ ( singleton @ Y ) ) )
      = ( apply @ Xf @ Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',apply) ).

thf(79,axiom,
    ! [X: $i] :
      ( ( X = null_class )
      | ( ( intersection @ X @ ( regular @ X ) )
        = null_class ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',regularity2) ).

thf(80,axiom,
    ! [X: $i] :
      ( ( X = null_class )
      | ( member @ ( regular @ X ) @ X ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',regularity1) ).

thf(81,axiom,
    ! [Xf: $i,X: $i] :
      ( ~ ( function @ Xf )
      | ~ ( member @ X @ universal_class )
      | ( member @ ( image @ Xf @ X ) @ universal_class ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',replacement) ).

thf(82,axiom,
    ! [Xf: $i] :
      ( ~ ( subclass @ Xf @ ( cross_product @ universal_class @ universal_class ) )
      | ~ ( subclass @ ( compose @ Xf @ ( inverse @ Xf ) ) @ identity_relation )
      | ( function @ Xf ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',function3) ).

thf(83,axiom,
    ! [Xf: $i] :
      ( ~ ( function @ Xf )
      | ( subclass @ ( compose @ Xf @ ( inverse @ Xf ) ) @ identity_relation ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',function2) ).

thf(84,axiom,
    ! [Xf: $i] :
      ( ~ ( function @ Xf )
      | ( subclass @ Xf @ ( cross_product @ universal_class @ universal_class ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',function1) ).

thf(85,axiom,
    ! [X: $i] :
      ( ~ ( subclass @ ( compose @ X @ ( inverse @ X ) ) @ identity_relation )
      | ( single_valued_class @ X ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',single_valued_class2) ).

thf(86,axiom,
    ! [X: $i] :
      ( ~ ( single_valued_class @ X )
      | ( subclass @ ( compose @ X @ ( inverse @ X ) ) @ identity_relation ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',single_valued_class1) ).

thf(87,axiom,
    ! [Z: $i,Yr: $i,Xr: $i,Y: $i] :
      ( ~ ( member @ Z @ ( image @ Yr @ ( image @ Xr @ ( singleton @ Y ) ) ) )
      | ~ ( member @ ( ordered_pair @ Y @ Z ) @ ( cross_product @ universal_class @ universal_class ) )
      | ( member @ ( ordered_pair @ Y @ Z ) @ ( compose @ Yr @ Xr ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',compose3) ).

thf(88,axiom,
    ! [Y: $i,Z: $i,Yr: $i,Xr: $i] :
      ( ~ ( member @ ( ordered_pair @ Y @ Z ) @ ( compose @ Yr @ Xr ) )
      | ( member @ Z @ ( image @ Yr @ ( image @ Xr @ ( singleton @ Y ) ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',compose2) ).

thf(89,axiom,
    ! [Yr: $i,Xr: $i] : ( subclass @ ( compose @ Yr @ Xr ) @ ( cross_product @ universal_class @ universal_class ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',compose1) ).

thf(90,axiom,
    ! [U: $i] :
      ( ~ ( member @ U @ universal_class )
      | ( member @ ( power_class @ U ) @ universal_class ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',power_class2) ).

thf(91,axiom,
    ! [X: $i] :
      ( ( complement @ ( image @ element_relation @ ( complement @ X ) ) )
      = ( power_class @ X ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',power_class_definition) ).

thf(92,axiom,
    ! [X: $i] :
      ( ~ ( member @ X @ universal_class )
      | ( member @ ( sum_class @ X ) @ universal_class ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',sum_class2) ).

thf(93,axiom,
    ! [X: $i] :
      ( ( domain_of @ ( restrict @ element_relation @ universal_class @ X ) )
      = ( sum_class @ X ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',sum_class_definition) ).

thf(94,axiom,
    member @ omega @ universal_class,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',omega_in_universal) ).

thf(95,axiom,
    ! [Y: $i] :
      ( ~ ( inductive @ Y )
      | ( subclass @ omega @ Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',omega_is_inductive2) ).

thf(96,axiom,
    inductive @ omega,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',omega_is_inductive1) ).

thf(97,axiom,
    ! [X: $i] :
      ( ~ ( member @ null_class @ X )
      | ~ ( subclass @ ( image @ successor_relation @ X ) @ X )
      | ( inductive @ X ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',inductive3) ).

thf(98,axiom,
    ! [X: $i] :
      ( ~ ( inductive @ X )
      | ( subclass @ ( image @ successor_relation @ X ) @ X ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',inductive2) ).

thf(99,axiom,
    ! [X: $i] :
      ( ~ ( inductive @ X )
      | ( member @ null_class @ X ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',inductive1) ).

thf(100,axiom,
    ! [X: $i,Y: $i] :
      ( ( ( successor @ X )
       != Y )
      | ~ ( member @ ( ordered_pair @ X @ Y ) @ ( cross_product @ universal_class @ universal_class ) )
      | ( member @ ( ordered_pair @ X @ Y ) @ successor_relation ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',successor_relation3) ).

thf(101,axiom,
    ! [X: $i,Y: $i] :
      ( ~ ( member @ ( ordered_pair @ X @ Y ) @ successor_relation )
      | ( ( successor @ X )
        = Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',successor_relation2) ).

thf(102,axiom,
    subclass @ successor_relation @ ( cross_product @ universal_class @ universal_class ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',successor_relation1) ).

thf(103,axiom,
    ! [X: $i] :
      ( ( union @ X @ ( singleton @ X ) )
      = ( successor @ X ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',successor) ).

thf(104,axiom,
    ! [Xr: $i,X: $i] :
      ( ( range_of @ ( restrict @ Xr @ X @ universal_class ) )
      = ( image @ Xr @ X ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',image) ).

thf(105,axiom,
    ! [Z: $i,X: $i,Y: $i] :
      ( ( second @ ( not_subclass_element @ ( restrict @ Z @ ( singleton @ X ) @ Y ) @ null_class ) )
      = ( range @ Z @ X @ Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',range) ).

thf(106,axiom,
    ! [Z: $i,X: $i,Y: $i] :
      ( ( first @ ( not_subclass_element @ ( restrict @ Z @ X @ ( singleton @ Y ) ) @ null_class ) )
      = ( domain @ Z @ X @ Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',domain) ).

thf(107,axiom,
    ! [Z: $i] :
      ( ( domain_of @ ( inverse @ Z ) )
      = ( range_of @ Z ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',range_of) ).

thf(108,axiom,
    ! [Y: $i] :
      ( ( domain_of @ ( flip @ ( cross_product @ Y @ universal_class ) ) )
      = ( inverse @ Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',inverse) ).

thf(109,axiom,
    ! [V: $i,U: $i,W: $i,X: $i] :
      ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ V @ U ) @ W ) @ X )
      | ~ ( member @ ( ordered_pair @ ( ordered_pair @ U @ V ) @ W ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
      | ( member @ ( ordered_pair @ ( ordered_pair @ U @ V ) @ W ) @ ( flip @ X ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',flip3) ).

thf(110,axiom,
    ! [U: $i,V: $i,W: $i,X: $i] :
      ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ U @ V ) @ W ) @ ( flip @ X ) )
      | ( member @ ( ordered_pair @ ( ordered_pair @ V @ U ) @ W ) @ X ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',flip2) ).

thf(111,axiom,
    ! [X: $i] : ( subclass @ ( flip @ X ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',flip1) ).

thf(112,axiom,
    ! [V: $i,W: $i,U: $i,X: $i] :
      ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ V @ W ) @ U ) @ X )
      | ~ ( member @ ( ordered_pair @ ( ordered_pair @ U @ V ) @ W ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
      | ( member @ ( ordered_pair @ ( ordered_pair @ U @ V ) @ W ) @ ( rotate @ X ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',rotate3) ).

thf(113,axiom,
    ! [U: $i,V: $i,W: $i,X: $i] :
      ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ U @ V ) @ W ) @ ( rotate @ X ) )
      | ( member @ ( ordered_pair @ ( ordered_pair @ V @ W ) @ U ) @ X ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',rotate2) ).

thf(114,axiom,
    ! [X: $i] : ( subclass @ ( rotate @ X ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',rotate1) ).

thf(115,axiom,
    ! [Z: $i,X: $i] :
      ( ~ ( member @ Z @ universal_class )
      | ( ( restrict @ X @ ( singleton @ Z ) @ universal_class )
        = null_class )
      | ( member @ Z @ ( domain_of @ X ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',domain2) ).

thf(116,axiom,
    ! [X: $i,Z: $i] :
      ( ( ( restrict @ X @ ( singleton @ Z ) @ universal_class )
       != null_class )
      | ~ ( member @ Z @ ( domain_of @ X ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',domain1) ).

thf(117,axiom,
    ! [X: $i,Y: $i,Xr: $i] :
      ( ( intersection @ ( cross_product @ X @ Y ) @ Xr )
      = ( restrict @ Xr @ X @ Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',restriction2) ).

thf(118,axiom,
    ! [Xr: $i,X: $i,Y: $i] :
      ( ( intersection @ Xr @ ( cross_product @ X @ Y ) )
      = ( restrict @ Xr @ X @ Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',restriction1) ).

thf(119,axiom,
    ! [X: $i,Y: $i] :
      ( ( intersection @ ( complement @ ( intersection @ X @ Y ) ) @ ( complement @ ( intersection @ ( complement @ X ) @ ( complement @ Y ) ) ) )
      = ( symmetric_difference @ X @ Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',symmetric_difference) ).

thf(120,axiom,
    ! [X: $i,Y: $i] :
      ( ( complement @ ( intersection @ ( complement @ X ) @ ( complement @ Y ) ) )
      = ( union @ X @ Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',union) ).

thf(121,axiom,
    ! [Z: $i,X: $i] :
      ( ~ ( member @ Z @ universal_class )
      | ( member @ Z @ ( complement @ X ) )
      | ( member @ Z @ X ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',complement2) ).

thf(122,axiom,
    ! [Z: $i,X: $i] :
      ( ~ ( member @ Z @ ( complement @ X ) )
      | ~ ( member @ Z @ X ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',complement1) ).

thf(123,axiom,
    ! [Z: $i,X: $i,Y: $i] :
      ( ~ ( member @ Z @ X )
      | ~ ( member @ Z @ Y )
      | ( member @ Z @ ( intersection @ X @ Y ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',intersection3) ).

thf(124,axiom,
    ! [Z: $i,X: $i,Y: $i] :
      ( ~ ( member @ Z @ ( intersection @ X @ Y ) )
      | ( member @ Z @ Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',intersection2) ).

thf(125,axiom,
    ! [Z: $i,X: $i,Y: $i] :
      ( ~ ( member @ Z @ ( intersection @ X @ Y ) )
      | ( member @ Z @ X ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',intersection1) ).

thf(126,axiom,
    ! [X: $i,Y: $i] :
      ( ~ ( member @ ( ordered_pair @ X @ Y ) @ ( cross_product @ universal_class @ universal_class ) )
      | ~ ( member @ X @ Y )
      | ( member @ ( ordered_pair @ X @ Y ) @ element_relation ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',element_relation3) ).

thf(127,axiom,
    ! [X: $i,Y: $i] :
      ( ~ ( member @ ( ordered_pair @ X @ Y ) @ element_relation )
      | ( member @ X @ Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',element_relation2) ).

thf(128,axiom,
    subclass @ element_relation @ ( cross_product @ universal_class @ universal_class ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',element_relation1) ).

thf(129,axiom,
    ! [Z: $i,X: $i,Y: $i] :
      ( ~ ( member @ Z @ ( cross_product @ X @ Y ) )
      | ( ( ordered_pair @ ( first @ Z ) @ ( second @ Z ) )
        = Z ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',cartesian_product4) ).

thf(130,axiom,
    ! [U: $i,X: $i,V: $i,Y: $i] :
      ( ~ ( member @ U @ X )
      | ~ ( member @ V @ Y )
      | ( member @ ( ordered_pair @ U @ V ) @ ( cross_product @ X @ Y ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',cartesian_product3) ).

thf(131,axiom,
    ! [U: $i,V: $i,X: $i,Y: $i] :
      ( ~ ( member @ ( ordered_pair @ U @ V ) @ ( cross_product @ X @ Y ) )
      | ( member @ V @ Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',cartesian_product2) ).

thf(132,axiom,
    ! [U: $i,V: $i,X: $i,Y: $i] :
      ( ~ ( member @ ( ordered_pair @ U @ V ) @ ( cross_product @ X @ Y ) )
      | ( member @ U @ X ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',cartesian_product1) ).

thf(133,axiom,
    ! [X: $i,Y: $i] :
      ( ( unordered_pair @ ( singleton @ X ) @ ( unordered_pair @ X @ ( singleton @ Y ) ) )
      = ( ordered_pair @ X @ Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',ordered_pair) ).

thf(134,axiom,
    ! [X: $i] :
      ( ( unordered_pair @ X @ X )
      = ( singleton @ X ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',singleton_set) ).

thf(135,axiom,
    ! [X: $i,Y: $i] : ( member @ ( unordered_pair @ X @ Y ) @ universal_class ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',unordered_pairs_in_universal) ).

thf(136,axiom,
    ! [Y: $i,X: $i] :
      ( ~ ( member @ Y @ universal_class )
      | ( member @ Y @ ( unordered_pair @ X @ Y ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',unordered_pair3) ).

thf(137,axiom,
    ! [X: $i,Y: $i] :
      ( ~ ( member @ X @ universal_class )
      | ( member @ X @ ( unordered_pair @ X @ Y ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',unordered_pair2) ).

thf(138,axiom,
    ! [U: $i,X: $i,Y: $i] :
      ( ~ ( member @ U @ ( unordered_pair @ X @ Y ) )
      | ( U = X )
      | ( U = Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',unordered_pair_member) ).

thf(139,axiom,
    ! [X: $i,Y: $i] :
      ( ~ ( subclass @ X @ Y )
      | ~ ( subclass @ Y @ X )
      | ( X = Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',subclass_implies_equal) ).

thf(140,axiom,
    ! [X: $i,Y: $i] :
      ( ( X != Y )
      | ( subclass @ Y @ X ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',equal_implies_subclass2) ).

thf(141,axiom,
    ! [X: $i,Y: $i] :
      ( ( X != Y )
      | ( subclass @ X @ Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',equal_implies_subclass1) ).

thf(142,axiom,
    ! [X: $i] : ( subclass @ X @ universal_class ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',class_elements_are_sets) ).

thf(143,axiom,
    ! [X: $i,Y: $i] :
      ( ~ ( member @ ( not_subclass_element @ X @ Y ) @ Y )
      | ( subclass @ X @ Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',not_subclass_members2) ).

thf(144,axiom,
    ! [X: $i,Y: $i] :
      ( ( member @ ( not_subclass_element @ X @ Y ) @ X )
      | ( subclass @ X @ Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',not_subclass_members1) ).

thf(145,axiom,
    ! [X: $i,Y: $i,U: $i] :
      ( ~ ( subclass @ X @ Y )
      | ~ ( member @ U @ X )
      | ( member @ U @ Y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',subclass_members) ).

thf(146,conjecture,
    $false,
    file('no conjecture given, we try to refute the axioms',dummy_conjecture) ).

thf(147,negated_conjecture,
    $false = $false,
    inference(negate_conjecture,[status(cth)],[146]) ).

thf(148,negated_conjecture,
    ~ ( member @ ( singleton @ x ) @ ( ordered_pair @ x @ y ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_singleton_member_of_ordered_pair_1) ).

thf(149,plain,
    $false = $false,
    inference(unfold_def,[status(thm)],[147]) ).

thf(150,plain,
    ( ( ! [X: $i,Y: $i] : ( member @ ( ordered_pair @ X @ Y ) @ universal_class ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1]) ).

thf(151,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( unordered_pair @ X @ Y )
          = ( union @ ( singleton @ X ) @ ( singleton @ Y ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2]) ).

thf(152,plain,
    ( ( ! [X: $i] :
          ( ( ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ X @ null_class ) ) ) @ X ) @ null_class )
           != ( not_subclass_element @ X @ null_class ) )
          | ( ( singleton @ ( not_subclass_element @ X @ null_class ) )
            = X )
          | ( X = null_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[3]) ).

thf(153,plain,
    ( ( ! [X: $i] :
          ( ( member @ ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ X @ null_class ) ) ) @ X ) @ null_class ) @ X )
          | ( ( singleton @ ( not_subclass_element @ X @ null_class ) )
            = X )
          | ( X = null_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[4]) ).

thf(154,plain,
    ( ( ! [X: $i] :
          ( ( member @ ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ X @ null_class ) ) ) @ X ) @ null_class ) @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ X @ null_class ) ) ) @ X ) )
          | ( ( singleton @ ( not_subclass_element @ X @ null_class ) )
            = X )
          | ( X = null_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[5]) ).

thf(155,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( subclass @ X @ ( singleton @ Y ) )
          | ( X = null_class )
          | ( ( singleton @ Y )
            = X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[6]) ).

thf(156,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ X @ Y )
          | ( subclass @ ( singleton @ X ) @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[7]) ).

thf(157,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( ( singleton @ ( member_of @ X ) )
           != X )
          | ~ ( member @ Y @ X )
          | ( ( member_of @ X )
            = Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[8]) ).

thf(158,plain,
    ( ( ! [X: $i] :
          ( ( ( singleton @ ( member_of @ X ) )
           != X )
          | ( member @ X @ universal_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[9]) ).

thf(159,plain,
    ( ( ! [X: $i] :
          ( ( ( singleton @ ( member_of1 @ X ) )
            = X )
          | ( ( member_of @ X )
            = X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[10]) ).

thf(160,plain,
    ( ( ! [X: $i] :
          ( ( member @ ( member_of1 @ X ) @ universal_class )
          | ( ( member_of @ X )
            = X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[11]) ).

thf(161,plain,
    ( ( ! [U: $i] :
          ( ~ ( member @ U @ universal_class )
          | ( ( member_of @ ( singleton @ U ) )
            = U ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[12]) ).

thf(162,plain,
    ( ( ! [X: $i] :
          ( ( ( singleton @ ( member_of @ X ) )
            = X )
          | ( ( member_of @ X )
            = X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[13]) ).

thf(163,plain,
    ( ( ! [X: $i] :
          ( ( member @ ( member_of @ X ) @ universal_class )
          | ( ( member_of @ X )
            = X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[14]) ).

thf(164,plain,
    ( ( ! [Y: $i] :
          ( ~ ( member @ Y @ universal_class )
          | ( ( singleton @ ( member_of @ ( singleton @ Y ) ) )
            = ( singleton @ Y ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[15]) ).

thf(165,plain,
    ( ( ! [Y: $i] :
          ( ~ ( member @ Y @ universal_class )
          | ( member @ ( member_of @ ( singleton @ Y ) ) @ universal_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[16]) ).

thf(166,plain,
    ( ( ! [Y: $i,Z: $i,X: $i] :
          ( ( ( unordered_pair @ Y @ Z )
           != ( singleton @ X ) )
          | ~ ( member @ X @ universal_class )
          | ( X = Y )
          | ( X = Z ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[17]) ).

thf(167,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( ( singleton @ X )
           != ( singleton @ Y ) )
          | ~ ( member @ Y @ universal_class )
          | ( X = Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[18]) ).

thf(168,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( ( singleton @ X )
           != ( singleton @ Y ) )
          | ~ ( member @ X @ universal_class )
          | ( X = Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[19]) ).

thf(169,plain,
    ( ( ! [X: $i] :
          ( ( member @ X @ universal_class )
          | ( ( singleton @ X )
            = null_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[20]) ).

thf(170,plain,
    ( ( ! [Y: $i,X: $i] :
          ( ~ ( member @ Y @ ( singleton @ X ) )
          | ( Y = X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[21]) ).

thf(171,plain,
    ( ( member @ null_class @ ( singleton @ null_class ) )
    = $true ),
    inference(unfold_def,[status(thm)],[22]) ).

thf(172,plain,
    ( ( ! [X: $i] :
          ( ~ ( member @ X @ universal_class )
          | ( ( singleton @ X )
           != null_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[23]) ).

thf(173,plain,
    ( ( ! [X: $i] :
          ( ~ ( member @ X @ universal_class )
          | ( member @ X @ ( singleton @ X ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[24]) ).

thf(174,plain,
    ( ( ! [Y: $i,X: $i] : ( member @ ( singleton @ Y ) @ ( unordered_pair @ X @ ( singleton @ Y ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[25]) ).

thf(175,plain,
    ( ( ! [X: $i] : ( member @ ( singleton @ X ) @ universal_class ) )
    = $true ),
    inference(unfold_def,[status(thm)],[26]) ).

thf(176,plain,
    ( ( ! [X: $i,Z: $i,Y: $i] :
          ( ~ ( member @ X @ Z )
          | ~ ( member @ Y @ Z )
          | ( subclass @ ( unordered_pair @ X @ Y ) @ Z ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[27]) ).

thf(177,plain,
    ( ( ! [X: $i,Y: $i,U: $i,V: $i] :
          ( ~ ( member @ ( ordered_pair @ X @ Y ) @ ( cross_product @ U @ V ) )
          | ( ( unordered_pair @ X @ Y )
           != null_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[28]) ).

thf(178,plain,
    ( ( ! [Y: $i,X: $i] :
          ( ~ ( member @ Y @ universal_class )
          | ( ( unordered_pair @ X @ Y )
           != null_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[29]) ).

thf(179,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ X @ universal_class )
          | ( ( unordered_pair @ X @ Y )
           != null_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[30]) ).

thf(180,plain,
    ( ( ! [X: $i,Z: $i,Y: $i] :
          ( ( ( unordered_pair @ X @ Z )
           != ( unordered_pair @ Y @ Z ) )
          | ~ ( member @ ( ordered_pair @ X @ Y ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( X = Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[31]) ).

thf(181,plain,
    ( ( ! [X: $i,Y: $i,Z: $i] :
          ( ( ( unordered_pair @ X @ Y )
           != ( unordered_pair @ X @ Z ) )
          | ~ ( member @ ( ordered_pair @ Y @ Z ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( Y = Z ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[32]) ).

thf(182,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( ( unordered_pair @ X @ Y )
            = null_class )
          | ( member @ X @ universal_class )
          | ( member @ Y @ universal_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[33]) ).

thf(183,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( member @ X @ universal_class )
          | ( ( unordered_pair @ X @ Y )
            = ( singleton @ Y ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[34]) ).

thf(184,plain,
    ( ( ! [Y: $i,X: $i] :
          ( ( member @ Y @ universal_class )
          | ( ( unordered_pair @ X @ Y )
            = ( singleton @ X ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[35]) ).

thf(185,plain,
    ( ( ! [Y: $i,X: $i] : ( subclass @ ( singleton @ Y ) @ ( unordered_pair @ X @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[36]) ).

thf(186,plain,
    ( ( ! [X: $i,Y: $i] : ( subclass @ ( singleton @ X ) @ ( unordered_pair @ X @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[37]) ).

thf(187,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( unordered_pair @ X @ Y )
          = ( unordered_pair @ Y @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[38]) ).

thf(188,plain,
    ( ( member @ null_class @ universal_class )
    = $true ),
    inference(unfold_def,[status(thm)],[39]) ).

thf(189,plain,
    ( ( ! [Z: $i] :
          ( ( Z = null_class )
          | ( member @ ( not_subclass_element @ Z @ null_class ) @ Z ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[40]) ).

thf(190,plain,
    ( ( ! [X: $i] :
          ( ~ ( subclass @ X @ null_class )
          | ( X = null_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[41]) ).

thf(191,plain,
    ( ( ! [X: $i] : ( subclass @ null_class @ X ) )
    = $true ),
    inference(unfold_def,[status(thm)],[42]) ).

thf(192,plain,
    ( ( ! [Z: $i] :
          ~ ( member @ Z @ null_class ) )
    = $true ),
    inference(unfold_def,[status(thm)],[43]) ).

thf(193,plain,
    ( ( ! [Y: $i,X: $i] :
          ~ ( member @ Y @ ( intersection @ ( complement @ X ) @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[44]) ).

thf(194,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ ( not_subclass_element @ X @ Y ) @ Y )
          | ~ ( member @ ( not_subclass_element @ Y @ X ) @ X )
          | ( X = Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[45]) ).

thf(195,plain,
    ( ( ! [Y: $i,X: $i] :
          ( ~ ( member @ ( not_subclass_element @ Y @ X ) @ X )
          | ( X = Y )
          | ( member @ ( not_subclass_element @ X @ Y ) @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[46]) ).

thf(196,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ ( not_subclass_element @ X @ Y ) @ Y )
          | ( X = Y )
          | ( member @ ( not_subclass_element @ Y @ X ) @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[47]) ).

thf(197,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( X = Y )
          | ( member @ ( not_subclass_element @ X @ Y ) @ X )
          | ( member @ ( not_subclass_element @ Y @ X ) @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[48]) ).

thf(198,plain,
    ( ( ! [X: $i,Y: $i,Z: $i] :
          ( ~ ( subclass @ X @ Y )
          | ~ ( subclass @ Y @ Z )
          | ( subclass @ X @ Z ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[49]) ).

thf(199,plain,
    ( ( ! [X: $i] : ( subclass @ X @ X ) )
    = $true ),
    inference(unfold_def,[status(thm)],[50]) ).

thf(200,plain,
    ( ( ! [U: $i,V: $i,X: $i,Y: $i] :
          ( ~ ( member @ ( ordered_pair @ U @ V ) @ ( cross_product @ X @ Y ) )
          | ( member @ V @ universal_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[51]) ).

thf(201,plain,
    ( ( ! [U: $i,V: $i,X: $i,Y: $i] :
          ( ~ ( member @ ( ordered_pair @ U @ V ) @ ( cross_product @ X @ Y ) )
          | ( member @ U @ universal_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[52]) ).

thf(202,plain,
    ( ( ! [X: $i,Y: $i,U: $i,V: $i] :
          ( ~ ( member @ ( ordered_pair @ X @ Y ) @ ( cross_product @ U @ V ) )
          | ( member @ Y @ ( unordered_pair @ X @ Y ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[53]) ).

thf(203,plain,
    ( ( ! [X: $i,Y: $i,U: $i,V: $i] :
          ( ~ ( member @ ( ordered_pair @ X @ Y ) @ ( cross_product @ U @ V ) )
          | ( member @ X @ ( unordered_pair @ X @ Y ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[54]) ).

thf(204,plain,
    ( ( ! [Xf1: $i,Xf2: $i,Xh: $i] :
          ( ~ ( operation @ Xf1 )
          | ~ ( operation @ Xf2 )
          | ~ ( compatible @ Xh @ Xf1 @ Xf2 )
          | ( ( apply @ Xf2 @ ( ordered_pair @ ( apply @ Xh @ ( not_homomorphism1 @ Xh @ Xf1 @ Xf2 ) ) @ ( apply @ Xh @ ( not_homomorphism2 @ Xh @ Xf1 @ Xf2 ) ) ) )
           != ( apply @ Xh @ ( apply @ Xf1 @ ( ordered_pair @ ( not_homomorphism1 @ Xh @ Xf1 @ Xf2 ) @ ( not_homomorphism2 @ Xh @ Xf1 @ Xf2 ) ) ) ) )
          | ( homomorphism @ Xh @ Xf1 @ Xf2 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[55]) ).

thf(205,plain,
    ( ( ! [Xf1: $i,Xf2: $i,Xh: $i] :
          ( ~ ( operation @ Xf1 )
          | ~ ( operation @ Xf2 )
          | ~ ( compatible @ Xh @ Xf1 @ Xf2 )
          | ( member @ ( ordered_pair @ ( not_homomorphism1 @ Xh @ Xf1 @ Xf2 ) @ ( not_homomorphism2 @ Xh @ Xf1 @ Xf2 ) ) @ ( domain_of @ Xf1 ) )
          | ( homomorphism @ Xh @ Xf1 @ Xf2 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[56]) ).

thf(206,plain,
    ( ( ! [Xh: $i,Xf1: $i,Xf2: $i,X: $i,Y: $i] :
          ( ~ ( homomorphism @ Xh @ Xf1 @ Xf2 )
          | ~ ( member @ ( ordered_pair @ X @ Y ) @ ( domain_of @ Xf1 ) )
          | ( ( apply @ Xf2 @ ( ordered_pair @ ( apply @ Xh @ X ) @ ( apply @ Xh @ Y ) ) )
            = ( apply @ Xh @ ( apply @ Xf1 @ ( ordered_pair @ X @ Y ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[57]) ).

thf(207,plain,
    ( ( ! [Xh: $i,Xf1: $i,Xf2: $i] :
          ( ~ ( homomorphism @ Xh @ Xf1 @ Xf2 )
          | ( compatible @ Xh @ Xf1 @ Xf2 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[58]) ).

thf(208,plain,
    ( ( ! [Xh: $i,Xf1: $i,Xf2: $i] :
          ( ~ ( homomorphism @ Xh @ Xf1 @ Xf2 )
          | ( operation @ Xf2 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[59]) ).

thf(209,plain,
    ( ( ! [Xh: $i,Xf1: $i,Xf2: $i] :
          ( ~ ( homomorphism @ Xh @ Xf1 @ Xf2 )
          | ( operation @ Xf1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[60]) ).

thf(210,plain,
    ( ( ! [Xh: $i,Xf1: $i,Xf2: $i] :
          ( ~ ( function @ Xh )
          | ( ( domain_of @ ( domain_of @ Xf1 ) )
           != ( domain_of @ Xh ) )
          | ~ ( subclass @ ( range_of @ Xh ) @ ( domain_of @ ( domain_of @ Xf2 ) ) )
          | ( compatible @ Xh @ Xf1 @ Xf2 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[61]) ).

thf(211,plain,
    ( ( ! [Xh: $i,Xf1: $i,Xf2: $i] :
          ( ~ ( compatible @ Xh @ Xf1 @ Xf2 )
          | ( subclass @ ( range_of @ Xh ) @ ( domain_of @ ( domain_of @ Xf2 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[62]) ).

thf(212,plain,
    ( ( ! [Xh: $i,Xf1: $i,Xf2: $i] :
          ( ~ ( compatible @ Xh @ Xf1 @ Xf2 )
          | ( ( domain_of @ ( domain_of @ Xf1 ) )
            = ( domain_of @ Xh ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[63]) ).

thf(213,plain,
    ( ( ! [Xh: $i,Xf1: $i,Xf2: $i] :
          ( ~ ( compatible @ Xh @ Xf1 @ Xf2 )
          | ( function @ Xh ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[64]) ).

thf(214,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( function @ Xf )
          | ( ( cross_product @ ( domain_of @ ( domain_of @ Xf ) ) @ ( domain_of @ ( domain_of @ Xf ) ) )
           != ( domain_of @ Xf ) )
          | ~ ( subclass @ ( range_of @ Xf ) @ ( domain_of @ ( domain_of @ Xf ) ) )
          | ( operation @ Xf ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[65]) ).

thf(215,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( operation @ Xf )
          | ( subclass @ ( range_of @ Xf ) @ ( domain_of @ ( domain_of @ Xf ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[66]) ).

thf(216,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( operation @ Xf )
          | ( ( cross_product @ ( domain_of @ ( domain_of @ Xf ) ) @ ( domain_of @ ( domain_of @ Xf ) ) )
            = ( domain_of @ Xf ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[67]) ).

thf(217,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( operation @ Xf )
          | ( function @ Xf ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[68]) ).

thf(218,plain,
    ( ( ! [X: $i] :
          ( ( intersection @ ( domain_of @ X ) @ ( diagonalise @ ( compose @ ( inverse @ element_relation ) @ X ) ) )
          = ( cantor @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[69]) ).

thf(219,plain,
    ( ( ! [Xr: $i] :
          ( ( complement @ ( domain_of @ ( intersection @ Xr @ identity_relation ) ) )
          = ( diagonalise @ Xr ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[70]) ).

thf(220,plain,
    ( ( ( intersection @ ( inverse @ subset_relation ) @ subset_relation )
      = identity_relation )
    = $true ),
    inference(unfold_def,[status(thm)],[71]) ).

thf(221,plain,
    ( ( ( intersection @ ( cross_product @ universal_class @ universal_class ) @ ( intersection @ ( cross_product @ universal_class @ universal_class ) @ ( complement @ ( compose @ ( complement @ element_relation ) @ ( inverse @ element_relation ) ) ) ) )
      = subset_relation )
    = $true ),
    inference(unfold_def,[status(thm)],[72]) ).

thf(222,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( function @ ( inverse @ Xf ) )
          | ~ ( function @ Xf )
          | ( one_to_one @ Xf ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[73]) ).

thf(223,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( one_to_one @ Xf )
          | ( function @ ( inverse @ Xf ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[74]) ).

thf(224,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( one_to_one @ Xf )
          | ( function @ Xf ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[75]) ).

thf(225,plain,
    ( ( ! [Y: $i] :
          ( ~ ( member @ Y @ universal_class )
          | ( Y = null_class )
          | ( member @ ( apply @ choice @ Y ) @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[76]) ).

thf(226,plain,
    ( ( function @ choice )
    = $true ),
    inference(unfold_def,[status(thm)],[77]) ).

thf(227,plain,
    ( ( ! [Xf: $i,Y: $i] :
          ( ( sum_class @ ( image @ Xf @ ( singleton @ Y ) ) )
          = ( apply @ Xf @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[78]) ).

thf(228,plain,
    ( ( ! [X: $i] :
          ( ( X = null_class )
          | ( ( intersection @ X @ ( regular @ X ) )
            = null_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[79]) ).

thf(229,plain,
    ( ( ! [X: $i] :
          ( ( X = null_class )
          | ( member @ ( regular @ X ) @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[80]) ).

thf(230,plain,
    ( ( ! [Xf: $i,X: $i] :
          ( ~ ( function @ Xf )
          | ~ ( member @ X @ universal_class )
          | ( member @ ( image @ Xf @ X ) @ universal_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[81]) ).

thf(231,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( subclass @ Xf @ ( cross_product @ universal_class @ universal_class ) )
          | ~ ( subclass @ ( compose @ Xf @ ( inverse @ Xf ) ) @ identity_relation )
          | ( function @ Xf ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[82]) ).

thf(232,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( function @ Xf )
          | ( subclass @ ( compose @ Xf @ ( inverse @ Xf ) ) @ identity_relation ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[83]) ).

thf(233,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( function @ Xf )
          | ( subclass @ Xf @ ( cross_product @ universal_class @ universal_class ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[84]) ).

thf(234,plain,
    ( ( ! [X: $i] :
          ( ~ ( subclass @ ( compose @ X @ ( inverse @ X ) ) @ identity_relation )
          | ( single_valued_class @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[85]) ).

thf(235,plain,
    ( ( ! [X: $i] :
          ( ~ ( single_valued_class @ X )
          | ( subclass @ ( compose @ X @ ( inverse @ X ) ) @ identity_relation ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[86]) ).

thf(236,plain,
    ( ( ! [Z: $i,Yr: $i,Xr: $i,Y: $i] :
          ( ~ ( member @ Z @ ( image @ Yr @ ( image @ Xr @ ( singleton @ Y ) ) ) )
          | ~ ( member @ ( ordered_pair @ Y @ Z ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( member @ ( ordered_pair @ Y @ Z ) @ ( compose @ Yr @ Xr ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[87]) ).

thf(237,plain,
    ( ( ! [Y: $i,Z: $i,Yr: $i,Xr: $i] :
          ( ~ ( member @ ( ordered_pair @ Y @ Z ) @ ( compose @ Yr @ Xr ) )
          | ( member @ Z @ ( image @ Yr @ ( image @ Xr @ ( singleton @ Y ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[88]) ).

thf(238,plain,
    ( ( ! [Yr: $i,Xr: $i] : ( subclass @ ( compose @ Yr @ Xr ) @ ( cross_product @ universal_class @ universal_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[89]) ).

thf(239,plain,
    ( ( ! [U: $i] :
          ( ~ ( member @ U @ universal_class )
          | ( member @ ( power_class @ U ) @ universal_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[90]) ).

thf(240,plain,
    ( ( ! [X: $i] :
          ( ( complement @ ( image @ element_relation @ ( complement @ X ) ) )
          = ( power_class @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[91]) ).

thf(241,plain,
    ( ( ! [X: $i] :
          ( ~ ( member @ X @ universal_class )
          | ( member @ ( sum_class @ X ) @ universal_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[92]) ).

thf(242,plain,
    ( ( ! [X: $i] :
          ( ( domain_of @ ( restrict @ element_relation @ universal_class @ X ) )
          = ( sum_class @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[93]) ).

thf(243,plain,
    ( ( member @ omega @ universal_class )
    = $true ),
    inference(unfold_def,[status(thm)],[94]) ).

thf(244,plain,
    ( ( ! [Y: $i] :
          ( ~ ( inductive @ Y )
          | ( subclass @ omega @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[95]) ).

thf(245,plain,
    ( ( inductive @ omega )
    = $true ),
    inference(unfold_def,[status(thm)],[96]) ).

thf(246,plain,
    ( ( ! [X: $i] :
          ( ~ ( member @ null_class @ X )
          | ~ ( subclass @ ( image @ successor_relation @ X ) @ X )
          | ( inductive @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[97]) ).

thf(247,plain,
    ( ( ! [X: $i] :
          ( ~ ( inductive @ X )
          | ( subclass @ ( image @ successor_relation @ X ) @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[98]) ).

thf(248,plain,
    ( ( ! [X: $i] :
          ( ~ ( inductive @ X )
          | ( member @ null_class @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[99]) ).

thf(249,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( ( successor @ X )
           != Y )
          | ~ ( member @ ( ordered_pair @ X @ Y ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( member @ ( ordered_pair @ X @ Y ) @ successor_relation ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[100]) ).

thf(250,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ ( ordered_pair @ X @ Y ) @ successor_relation )
          | ( ( successor @ X )
            = Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[101]) ).

thf(251,plain,
    ( ( subclass @ successor_relation @ ( cross_product @ universal_class @ universal_class ) )
    = $true ),
    inference(unfold_def,[status(thm)],[102]) ).

thf(252,plain,
    ( ( ! [X: $i] :
          ( ( union @ X @ ( singleton @ X ) )
          = ( successor @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[103]) ).

thf(253,plain,
    ( ( ! [Xr: $i,X: $i] :
          ( ( range_of @ ( restrict @ Xr @ X @ universal_class ) )
          = ( image @ Xr @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[104]) ).

thf(254,plain,
    ( ( ! [Z: $i,X: $i,Y: $i] :
          ( ( second @ ( not_subclass_element @ ( restrict @ Z @ ( singleton @ X ) @ Y ) @ null_class ) )
          = ( range @ Z @ X @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[105]) ).

thf(255,plain,
    ( ( ! [Z: $i,X: $i,Y: $i] :
          ( ( first @ ( not_subclass_element @ ( restrict @ Z @ X @ ( singleton @ Y ) ) @ null_class ) )
          = ( domain @ Z @ X @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[106]) ).

thf(256,plain,
    ( ( ! [Z: $i] :
          ( ( domain_of @ ( inverse @ Z ) )
          = ( range_of @ Z ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[107]) ).

thf(257,plain,
    ( ( ! [Y: $i] :
          ( ( domain_of @ ( flip @ ( cross_product @ Y @ universal_class ) ) )
          = ( inverse @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[108]) ).

thf(258,plain,
    ( ( ! [V: $i,U: $i,W: $i,X: $i] :
          ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ V @ U ) @ W ) @ X )
          | ~ ( member @ ( ordered_pair @ ( ordered_pair @ U @ V ) @ W ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
          | ( member @ ( ordered_pair @ ( ordered_pair @ U @ V ) @ W ) @ ( flip @ X ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[109]) ).

thf(259,plain,
    ( ( ! [U: $i,V: $i,W: $i,X: $i] :
          ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ U @ V ) @ W ) @ ( flip @ X ) )
          | ( member @ ( ordered_pair @ ( ordered_pair @ V @ U ) @ W ) @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[110]) ).

thf(260,plain,
    ( ( ! [X: $i] : ( subclass @ ( flip @ X ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[111]) ).

thf(261,plain,
    ( ( ! [V: $i,W: $i,U: $i,X: $i] :
          ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ V @ W ) @ U ) @ X )
          | ~ ( member @ ( ordered_pair @ ( ordered_pair @ U @ V ) @ W ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
          | ( member @ ( ordered_pair @ ( ordered_pair @ U @ V ) @ W ) @ ( rotate @ X ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[112]) ).

thf(262,plain,
    ( ( ! [U: $i,V: $i,W: $i,X: $i] :
          ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ U @ V ) @ W ) @ ( rotate @ X ) )
          | ( member @ ( ordered_pair @ ( ordered_pair @ V @ W ) @ U ) @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[113]) ).

thf(263,plain,
    ( ( ! [X: $i] : ( subclass @ ( rotate @ X ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[114]) ).

thf(264,plain,
    ( ( ! [Z: $i,X: $i] :
          ( ~ ( member @ Z @ universal_class )
          | ( ( restrict @ X @ ( singleton @ Z ) @ universal_class )
            = null_class )
          | ( member @ Z @ ( domain_of @ X ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[115]) ).

thf(265,plain,
    ( ( ! [X: $i,Z: $i] :
          ( ( ( restrict @ X @ ( singleton @ Z ) @ universal_class )
           != null_class )
          | ~ ( member @ Z @ ( domain_of @ X ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[116]) ).

thf(266,plain,
    ( ( ! [X: $i,Y: $i,Xr: $i] :
          ( ( intersection @ ( cross_product @ X @ Y ) @ Xr )
          = ( restrict @ Xr @ X @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[117]) ).

thf(267,plain,
    ( ( ! [Xr: $i,X: $i,Y: $i] :
          ( ( intersection @ Xr @ ( cross_product @ X @ Y ) )
          = ( restrict @ Xr @ X @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[118]) ).

thf(268,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( intersection @ ( complement @ ( intersection @ X @ Y ) ) @ ( complement @ ( intersection @ ( complement @ X ) @ ( complement @ Y ) ) ) )
          = ( symmetric_difference @ X @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[119]) ).

thf(269,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( complement @ ( intersection @ ( complement @ X ) @ ( complement @ Y ) ) )
          = ( union @ X @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[120]) ).

thf(270,plain,
    ( ( ! [Z: $i,X: $i] :
          ( ~ ( member @ Z @ universal_class )
          | ( member @ Z @ ( complement @ X ) )
          | ( member @ Z @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[121]) ).

thf(271,plain,
    ( ( ! [Z: $i,X: $i] :
          ( ~ ( member @ Z @ ( complement @ X ) )
          | ~ ( member @ Z @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[122]) ).

thf(272,plain,
    ( ( ! [Z: $i,X: $i,Y: $i] :
          ( ~ ( member @ Z @ X )
          | ~ ( member @ Z @ Y )
          | ( member @ Z @ ( intersection @ X @ Y ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[123]) ).

thf(273,plain,
    ( ( ! [Z: $i,X: $i,Y: $i] :
          ( ~ ( member @ Z @ ( intersection @ X @ Y ) )
          | ( member @ Z @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[124]) ).

thf(274,plain,
    ( ( ! [Z: $i,X: $i,Y: $i] :
          ( ~ ( member @ Z @ ( intersection @ X @ Y ) )
          | ( member @ Z @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[125]) ).

thf(275,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ ( ordered_pair @ X @ Y ) @ ( cross_product @ universal_class @ universal_class ) )
          | ~ ( member @ X @ Y )
          | ( member @ ( ordered_pair @ X @ Y ) @ element_relation ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[126]) ).

thf(276,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ ( ordered_pair @ X @ Y ) @ element_relation )
          | ( member @ X @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[127]) ).

thf(277,plain,
    ( ( subclass @ element_relation @ ( cross_product @ universal_class @ universal_class ) )
    = $true ),
    inference(unfold_def,[status(thm)],[128]) ).

thf(278,plain,
    ( ( ! [Z: $i,X: $i,Y: $i] :
          ( ~ ( member @ Z @ ( cross_product @ X @ Y ) )
          | ( ( ordered_pair @ ( first @ Z ) @ ( second @ Z ) )
            = Z ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[129]) ).

thf(279,plain,
    ( ( ! [U: $i,X: $i,V: $i,Y: $i] :
          ( ~ ( member @ U @ X )
          | ~ ( member @ V @ Y )
          | ( member @ ( ordered_pair @ U @ V ) @ ( cross_product @ X @ Y ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[130]) ).

thf(280,plain,
    ( ( ! [U: $i,V: $i,X: $i,Y: $i] :
          ( ~ ( member @ ( ordered_pair @ U @ V ) @ ( cross_product @ X @ Y ) )
          | ( member @ V @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[131]) ).

thf(281,plain,
    ( ( ! [U: $i,V: $i,X: $i,Y: $i] :
          ( ~ ( member @ ( ordered_pair @ U @ V ) @ ( cross_product @ X @ Y ) )
          | ( member @ U @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[132]) ).

thf(282,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( unordered_pair @ ( singleton @ X ) @ ( unordered_pair @ X @ ( singleton @ Y ) ) )
          = ( ordered_pair @ X @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[133]) ).

thf(283,plain,
    ( ( ! [X: $i] :
          ( ( unordered_pair @ X @ X )
          = ( singleton @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[134]) ).

thf(284,plain,
    ( ( ! [X: $i,Y: $i] : ( member @ ( unordered_pair @ X @ Y ) @ universal_class ) )
    = $true ),
    inference(unfold_def,[status(thm)],[135]) ).

thf(285,plain,
    ( ( ! [Y: $i,X: $i] :
          ( ~ ( member @ Y @ universal_class )
          | ( member @ Y @ ( unordered_pair @ X @ Y ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[136]) ).

thf(286,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ X @ universal_class )
          | ( member @ X @ ( unordered_pair @ X @ Y ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[137]) ).

thf(287,plain,
    ( ( ! [U: $i,X: $i,Y: $i] :
          ( ~ ( member @ U @ ( unordered_pair @ X @ Y ) )
          | ( U = X )
          | ( U = Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[138]) ).

thf(288,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( subclass @ X @ Y )
          | ~ ( subclass @ Y @ X )
          | ( X = Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[139]) ).

thf(289,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( X != Y )
          | ( subclass @ Y @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[140]) ).

thf(290,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( X != Y )
          | ( subclass @ X @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[141]) ).

thf(291,plain,
    ( ( ! [X: $i] : ( subclass @ X @ universal_class ) )
    = $true ),
    inference(unfold_def,[status(thm)],[142]) ).

thf(292,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ ( not_subclass_element @ X @ Y ) @ Y )
          | ( subclass @ X @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[143]) ).

thf(293,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( member @ ( not_subclass_element @ X @ Y ) @ X )
          | ( subclass @ X @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[144]) ).

thf(294,plain,
    ( ( ! [X: $i,Y: $i,U: $i] :
          ( ~ ( subclass @ X @ Y )
          | ~ ( member @ U @ X )
          | ( member @ U @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[145]) ).

thf(295,plain,
    ( ( ~ ( member @ ( singleton @ x ) @ ( ordered_pair @ x @ y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[148]) ).

thf(296,plain,
    ( ( ~ $false ) = $true ),
    inference(polarity_switch,[status(thm)],[149]) ).

thf(297,plain,
    ( ( ! [X: $i] :
          ( ( ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ X @ null_class ) ) ) @ X ) @ null_class )
           != ( not_subclass_element @ X @ null_class ) )
          | ( ( singleton @ ( not_subclass_element @ X @ null_class ) )
            = X )
          | ( X = null_class ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[152]) ).

thf(298,plain,
    ( ( ! [X: $i] :
          ( ( ( singleton @ ( member_of @ X ) )
           != X )
          | ! [Y: $i] :
              ( ~ ( member @ Y @ X )
              | ( ( member_of @ X )
                = Y ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[157]) ).

thf(299,plain,
    ( ( ! [X: $i] :
          ( ( ( singleton @ ( member_of @ X ) )
           != X )
          | ( member @ X @ universal_class ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[158]) ).

thf(300,plain,
    ( ( ! [X: $i] :
          ( ( ( member_of @ X )
            = X )
          | ( member @ ( member_of1 @ X ) @ universal_class ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[160]) ).

thf(301,plain,
    ( ( ! [X: $i] :
          ( ( ( member_of @ X )
            = X )
          | ( member @ ( member_of @ X ) @ universal_class ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[163]) ).

thf(302,plain,
    ( ( ! [Y: $i,Z: $i,X: $i] :
          ( ( ( unordered_pair @ Y @ Z )
           != ( singleton @ X ) )
          | ~ ( member @ X @ universal_class )
          | ( X = Y )
          | ( X = Z ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[166]) ).

thf(303,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( ( singleton @ X )
           != ( singleton @ Y ) )
          | ~ ( member @ Y @ universal_class )
          | ( X = Y ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[167]) ).

thf(304,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( ( singleton @ X )
           != ( singleton @ Y ) )
          | ~ ( member @ X @ universal_class )
          | ( X = Y ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[168]) ).

thf(305,plain,
    ( ( ! [X: $i] :
          ( ( ( singleton @ X )
            = null_class )
          | ( member @ X @ universal_class ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[169]) ).

thf(306,plain,
    ( ( ! [X: $i] :
          ( ~ ( member @ X @ universal_class )
          | ( ( singleton @ X )
           != null_class ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[172]) ).

thf(307,plain,
    ( ( ! [X: $i,Z: $i] :
          ( ~ ( member @ X @ Z )
          | ! [Y: $i] :
              ( ~ ( member @ Y @ Z )
              | ( subclass @ ( unordered_pair @ X @ Y ) @ Z ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[176]) ).

thf(308,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ! [U: $i,V: $i] :
              ~ ( member @ ( ordered_pair @ X @ Y ) @ ( cross_product @ U @ V ) )
          | ( ( unordered_pair @ X @ Y )
           != null_class ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[177]) ).

thf(309,plain,
    ( ( ! [Y: $i] :
          ( ~ ( member @ Y @ universal_class )
          | ! [X: $i] :
              ( ( unordered_pair @ X @ Y )
             != null_class ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[178]) ).

thf(310,plain,
    ( ( ! [X: $i] :
          ( ~ ( member @ X @ universal_class )
          | ! [Y: $i] :
              ( ( unordered_pair @ X @ Y )
             != null_class ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[179]) ).

thf(311,plain,
    ( ( ! [X: $i,Z: $i,Y: $i] :
          ( ( ( unordered_pair @ X @ Z )
           != ( unordered_pair @ Y @ Z ) )
          | ~ ( member @ ( ordered_pair @ X @ Y ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( X = Y ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[180]) ).

thf(312,plain,
    ( ( ! [X: $i,Y: $i,Z: $i] :
          ( ( ( unordered_pair @ X @ Y )
           != ( unordered_pair @ X @ Z ) )
          | ~ ( member @ ( ordered_pair @ Y @ Z ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( Y = Z ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[181]) ).

thf(313,plain,
    ( ( ! [X: $i] :
          ( ! [Y: $i] :
              ( ( unordered_pair @ X @ Y )
              = ( singleton @ Y ) )
          | ( member @ X @ universal_class ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[183]) ).

thf(314,plain,
    ( ( ! [Y: $i] :
          ( ! [X: $i] :
              ( ( unordered_pair @ X @ Y )
              = ( singleton @ X ) )
          | ( member @ Y @ universal_class ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[184]) ).

thf(315,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( subclass @ X @ Y )
          | ! [Z: $i] :
              ( ~ ( subclass @ Y @ Z )
              | ( subclass @ X @ Z ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[198]) ).

thf(316,plain,
    ( ( ! [U: $i,V: $i] :
          ( ! [X: $i,Y: $i] :
              ~ ( member @ ( ordered_pair @ U @ V ) @ ( cross_product @ X @ Y ) )
          | ( member @ V @ universal_class ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[200]) ).

thf(317,plain,
    ( ( ! [U: $i,V: $i] :
          ( ! [X: $i,Y: $i] :
              ~ ( member @ ( ordered_pair @ U @ V ) @ ( cross_product @ X @ Y ) )
          | ( member @ U @ universal_class ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[201]) ).

thf(318,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ! [U: $i,V: $i] :
              ~ ( member @ ( ordered_pair @ X @ Y ) @ ( cross_product @ U @ V ) )
          | ( member @ Y @ ( unordered_pair @ X @ Y ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[202]) ).

thf(319,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ! [U: $i,V: $i] :
              ~ ( member @ ( ordered_pair @ X @ Y ) @ ( cross_product @ U @ V ) )
          | ( member @ X @ ( unordered_pair @ X @ Y ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[203]) ).

thf(320,plain,
    ( ( ! [Xf1: $i] :
          ( ~ ( operation @ Xf1 )
          | ! [Xf2: $i] :
              ( ~ ( operation @ Xf2 )
              | ! [Xh: $i] :
                  ( ~ ( compatible @ Xh @ Xf1 @ Xf2 )
                  | ( ( apply @ Xf2 @ ( ordered_pair @ ( apply @ Xh @ ( not_homomorphism1 @ Xh @ Xf1 @ Xf2 ) ) @ ( apply @ Xh @ ( not_homomorphism2 @ Xh @ Xf1 @ Xf2 ) ) ) )
                   != ( apply @ Xh @ ( apply @ Xf1 @ ( ordered_pair @ ( not_homomorphism1 @ Xh @ Xf1 @ Xf2 ) @ ( not_homomorphism2 @ Xh @ Xf1 @ Xf2 ) ) ) ) )
                  | ( homomorphism @ Xh @ Xf1 @ Xf2 ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[204]) ).

thf(321,plain,
    ( ( ! [Xf1: $i] :
          ( ~ ( operation @ Xf1 )
          | ! [Xf2: $i] :
              ( ~ ( operation @ Xf2 )
              | ! [Xh: $i] :
                  ( ~ ( compatible @ Xh @ Xf1 @ Xf2 )
                  | ( homomorphism @ Xh @ Xf1 @ Xf2 )
                  | ( member @ ( ordered_pair @ ( not_homomorphism1 @ Xh @ Xf1 @ Xf2 ) @ ( not_homomorphism2 @ Xh @ Xf1 @ Xf2 ) ) @ ( domain_of @ Xf1 ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[205]) ).

thf(322,plain,
    ( ( ! [Xh: $i,Xf1: $i,Xf2: $i] :
          ( ~ ( homomorphism @ Xh @ Xf1 @ Xf2 )
          | ! [X: $i,Y: $i] :
              ( ~ ( member @ ( ordered_pair @ X @ Y ) @ ( domain_of @ Xf1 ) )
              | ( ( apply @ Xf2 @ ( ordered_pair @ ( apply @ Xh @ X ) @ ( apply @ Xh @ Y ) ) )
                = ( apply @ Xh @ ( apply @ Xf1 @ ( ordered_pair @ X @ Y ) ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[206]) ).

thf(323,plain,
    ( ( ! [Xh: $i,Xf1: $i] :
          ( ! [Xf2: $i] :
              ~ ( homomorphism @ Xh @ Xf1 @ Xf2 )
          | ( operation @ Xf1 ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[209]) ).

thf(324,plain,
    ( ( ! [Xh: $i] :
          ( ~ ( function @ Xh )
          | ! [Xf1: $i] :
              ( ( ( domain_of @ ( domain_of @ Xf1 ) )
               != ( domain_of @ Xh ) )
              | ! [Xf2: $i] :
                  ( ~ ( subclass @ ( range_of @ Xh ) @ ( domain_of @ ( domain_of @ Xf2 ) ) )
                  | ( compatible @ Xh @ Xf1 @ Xf2 ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[210]) ).

thf(325,plain,
    ( ( ! [Xh: $i,Xf1: $i] :
          ( ! [Xf2: $i] :
              ~ ( compatible @ Xh @ Xf1 @ Xf2 )
          | ( ( domain_of @ ( domain_of @ Xf1 ) )
            = ( domain_of @ Xh ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[212]) ).

thf(326,plain,
    ( ( ! [Xh: $i] :
          ( ! [Xf1: $i,Xf2: $i] :
              ~ ( compatible @ Xh @ Xf1 @ Xf2 )
          | ( function @ Xh ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[213]) ).

thf(327,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( function @ Xf )
          | ( ( cross_product @ ( domain_of @ ( domain_of @ Xf ) ) @ ( domain_of @ ( domain_of @ Xf ) ) )
           != ( domain_of @ Xf ) )
          | ~ ( subclass @ ( range_of @ Xf ) @ ( domain_of @ ( domain_of @ Xf ) ) )
          | ( operation @ Xf ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[214]) ).

thf(328,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( function @ Xf )
          | ! [X: $i] :
              ( ~ ( member @ X @ universal_class )
              | ( member @ ( image @ Xf @ X ) @ universal_class ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[230]) ).

thf(329,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( ( successor @ X )
           != Y )
          | ~ ( member @ ( ordered_pair @ X @ Y ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( member @ ( ordered_pair @ X @ Y ) @ successor_relation ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[249]) ).

thf(330,plain,
    ( ( ! [Z: $i] :
          ( ~ ( member @ Z @ universal_class )
          | ! [X: $i] :
              ( ( ( restrict @ X @ ( singleton @ Z ) @ universal_class )
                = null_class )
              | ( member @ Z @ ( domain_of @ X ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[264]) ).

thf(331,plain,
    ( ( ! [X: $i,Z: $i] :
          ( ( ( restrict @ X @ ( singleton @ Z ) @ universal_class )
           != null_class )
          | ~ ( member @ Z @ ( domain_of @ X ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[265]) ).

thf(332,plain,
    ( ( ! [Z: $i] :
          ( ~ ( member @ Z @ universal_class )
          | ! [X: $i] :
              ( ( member @ Z @ ( complement @ X ) )
              | ( member @ Z @ X ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[270]) ).

thf(333,plain,
    ( ( ! [Z: $i,X: $i] :
          ( ~ ( member @ Z @ X )
          | ! [Y: $i] :
              ( ~ ( member @ Z @ Y )
              | ( member @ Z @ ( intersection @ X @ Y ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[272]) ).

thf(334,plain,
    ( ( ! [Z: $i,X: $i] :
          ( ! [Y: $i] :
              ~ ( member @ Z @ ( intersection @ X @ Y ) )
          | ( member @ Z @ X ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[274]) ).

thf(335,plain,
    ( ( ! [Z: $i] :
          ( ! [X: $i,Y: $i] :
              ~ ( member @ Z @ ( cross_product @ X @ Y ) )
          | ( ( ordered_pair @ ( first @ Z ) @ ( second @ Z ) )
            = Z ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[278]) ).

thf(336,plain,
    ( ( ! [U: $i,X: $i] :
          ( ~ ( member @ U @ X )
          | ! [V: $i,Y: $i] :
              ( ~ ( member @ V @ Y )
              | ( member @ ( ordered_pair @ U @ V ) @ ( cross_product @ X @ Y ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[279]) ).

thf(337,plain,
    ( ( ! [U: $i,V: $i,X: $i] :
          ( ! [Y: $i] :
              ~ ( member @ ( ordered_pair @ U @ V ) @ ( cross_product @ X @ Y ) )
          | ( member @ U @ X ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[281]) ).

thf(338,plain,
    ( ( ! [Y: $i] :
          ( ~ ( member @ Y @ universal_class )
          | ! [X: $i] : ( member @ Y @ ( unordered_pair @ X @ Y ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[285]) ).

thf(339,plain,
    ( ( ! [X: $i] :
          ( ~ ( member @ X @ universal_class )
          | ! [Y: $i] : ( member @ X @ ( unordered_pair @ X @ Y ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[286]) ).

thf(340,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( X != Y )
          | ( subclass @ Y @ X ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[289]) ).

thf(341,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( X != Y )
          | ( subclass @ X @ Y ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[290]) ).

thf(342,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( subclass @ X @ Y )
          | ! [U: $i] :
              ( ~ ( member @ U @ X )
              | ( member @ U @ Y ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[294]) ).

thf(343,plain,
    ( ( ~ ( member @ ( singleton @ x ) @ ( ordered_pair @ x @ y ) ) )
    = $true ),
    inference(copy,[status(thm)],[295]) ).

thf(344,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( subclass @ X @ Y )
          | ! [U: $i] :
              ( ~ ( member @ U @ X )
              | ( member @ U @ Y ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[342]) ).

thf(345,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( member @ ( not_subclass_element @ X @ Y ) @ X )
          | ( subclass @ X @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[293]) ).

thf(346,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ ( not_subclass_element @ X @ Y ) @ Y )
          | ( subclass @ X @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[292]) ).

thf(347,plain,
    ( ( ! [X: $i] : ( subclass @ X @ universal_class ) )
    = $true ),
    inference(copy,[status(thm)],[291]) ).

thf(348,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( X != Y )
          | ( subclass @ X @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[341]) ).

thf(349,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( X != Y )
          | ( subclass @ Y @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[340]) ).

thf(350,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( subclass @ X @ Y )
          | ~ ( subclass @ Y @ X )
          | ( X = Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[288]) ).

thf(351,plain,
    ( ( ! [U: $i,X: $i,Y: $i] :
          ( ~ ( member @ U @ ( unordered_pair @ X @ Y ) )
          | ( U = X )
          | ( U = Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[287]) ).

thf(352,plain,
    ( ( ! [X: $i] :
          ( ~ ( member @ X @ universal_class )
          | ! [Y: $i] : ( member @ X @ ( unordered_pair @ X @ Y ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[339]) ).

thf(353,plain,
    ( ( ! [Y: $i] :
          ( ~ ( member @ Y @ universal_class )
          | ! [X: $i] : ( member @ Y @ ( unordered_pair @ X @ Y ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[338]) ).

thf(354,plain,
    ( ( ! [X: $i,Y: $i] : ( member @ ( unordered_pair @ X @ Y ) @ universal_class ) )
    = $true ),
    inference(copy,[status(thm)],[284]) ).

thf(355,plain,
    ( ( ! [X: $i] :
          ( ( unordered_pair @ X @ X )
          = ( singleton @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[283]) ).

thf(356,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( unordered_pair @ ( singleton @ X ) @ ( unordered_pair @ X @ ( singleton @ Y ) ) )
          = ( ordered_pair @ X @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[282]) ).

thf(357,plain,
    ( ( ! [U: $i,V: $i,X: $i] :
          ( ! [Y: $i] :
              ~ ( member @ ( ordered_pair @ U @ V ) @ ( cross_product @ X @ Y ) )
          | ( member @ U @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[337]) ).

thf(358,plain,
    ( ( ! [U: $i,V: $i,X: $i,Y: $i] :
          ( ~ ( member @ ( ordered_pair @ U @ V ) @ ( cross_product @ X @ Y ) )
          | ( member @ V @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[280]) ).

thf(359,plain,
    ( ( ! [U: $i,X: $i] :
          ( ~ ( member @ U @ X )
          | ! [V: $i,Y: $i] :
              ( ~ ( member @ V @ Y )
              | ( member @ ( ordered_pair @ U @ V ) @ ( cross_product @ X @ Y ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[336]) ).

thf(360,plain,
    ( ( ! [Z: $i] :
          ( ! [X: $i,Y: $i] :
              ~ ( member @ Z @ ( cross_product @ X @ Y ) )
          | ( ( ordered_pair @ ( first @ Z ) @ ( second @ Z ) )
            = Z ) ) )
    = $true ),
    inference(copy,[status(thm)],[335]) ).

thf(361,plain,
    ( ( subclass @ element_relation @ ( cross_product @ universal_class @ universal_class ) )
    = $true ),
    inference(copy,[status(thm)],[277]) ).

thf(362,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ ( ordered_pair @ X @ Y ) @ element_relation )
          | ( member @ X @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[276]) ).

thf(363,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ ( ordered_pair @ X @ Y ) @ ( cross_product @ universal_class @ universal_class ) )
          | ~ ( member @ X @ Y )
          | ( member @ ( ordered_pair @ X @ Y ) @ element_relation ) ) )
    = $true ),
    inference(copy,[status(thm)],[275]) ).

thf(364,plain,
    ( ( ! [Z: $i,X: $i] :
          ( ! [Y: $i] :
              ~ ( member @ Z @ ( intersection @ X @ Y ) )
          | ( member @ Z @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[334]) ).

thf(365,plain,
    ( ( ! [Z: $i,X: $i,Y: $i] :
          ( ~ ( member @ Z @ ( intersection @ X @ Y ) )
          | ( member @ Z @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[273]) ).

thf(366,plain,
    ( ( ! [Z: $i,X: $i] :
          ( ~ ( member @ Z @ X )
          | ! [Y: $i] :
              ( ~ ( member @ Z @ Y )
              | ( member @ Z @ ( intersection @ X @ Y ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[333]) ).

thf(367,plain,
    ( ( ! [Z: $i,X: $i] :
          ( ~ ( member @ Z @ ( complement @ X ) )
          | ~ ( member @ Z @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[271]) ).

thf(368,plain,
    ( ( ! [Z: $i] :
          ( ~ ( member @ Z @ universal_class )
          | ! [X: $i] :
              ( ( member @ Z @ ( complement @ X ) )
              | ( member @ Z @ X ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[332]) ).

thf(369,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( complement @ ( intersection @ ( complement @ X ) @ ( complement @ Y ) ) )
          = ( union @ X @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[269]) ).

thf(370,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( intersection @ ( complement @ ( intersection @ X @ Y ) ) @ ( complement @ ( intersection @ ( complement @ X ) @ ( complement @ Y ) ) ) )
          = ( symmetric_difference @ X @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[268]) ).

thf(371,plain,
    ( ( ! [Xr: $i,X: $i,Y: $i] :
          ( ( intersection @ Xr @ ( cross_product @ X @ Y ) )
          = ( restrict @ Xr @ X @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[267]) ).

thf(372,plain,
    ( ( ! [X: $i,Y: $i,Xr: $i] :
          ( ( intersection @ ( cross_product @ X @ Y ) @ Xr )
          = ( restrict @ Xr @ X @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[266]) ).

thf(373,plain,
    ( ( ! [X: $i,Z: $i] :
          ( ( ( restrict @ X @ ( singleton @ Z ) @ universal_class )
           != null_class )
          | ~ ( member @ Z @ ( domain_of @ X ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[331]) ).

thf(374,plain,
    ( ( ! [Z: $i] :
          ( ~ ( member @ Z @ universal_class )
          | ! [X: $i] :
              ( ( ( restrict @ X @ ( singleton @ Z ) @ universal_class )
                = null_class )
              | ( member @ Z @ ( domain_of @ X ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[330]) ).

thf(375,plain,
    ( ( ! [X: $i] : ( subclass @ ( rotate @ X ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[263]) ).

thf(376,plain,
    ( ( ! [U: $i,V: $i,W: $i,X: $i] :
          ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ U @ V ) @ W ) @ ( rotate @ X ) )
          | ( member @ ( ordered_pair @ ( ordered_pair @ V @ W ) @ U ) @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[262]) ).

thf(377,plain,
    ( ( ! [V: $i,W: $i,U: $i,X: $i] :
          ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ V @ W ) @ U ) @ X )
          | ~ ( member @ ( ordered_pair @ ( ordered_pair @ U @ V ) @ W ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
          | ( member @ ( ordered_pair @ ( ordered_pair @ U @ V ) @ W ) @ ( rotate @ X ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[261]) ).

thf(378,plain,
    ( ( ! [X: $i] : ( subclass @ ( flip @ X ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[260]) ).

thf(379,plain,
    ( ( ! [U: $i,V: $i,W: $i,X: $i] :
          ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ U @ V ) @ W ) @ ( flip @ X ) )
          | ( member @ ( ordered_pair @ ( ordered_pair @ V @ U ) @ W ) @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[259]) ).

thf(380,plain,
    ( ( ! [V: $i,U: $i,W: $i,X: $i] :
          ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ V @ U ) @ W ) @ X )
          | ~ ( member @ ( ordered_pair @ ( ordered_pair @ U @ V ) @ W ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
          | ( member @ ( ordered_pair @ ( ordered_pair @ U @ V ) @ W ) @ ( flip @ X ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[258]) ).

thf(381,plain,
    ( ( ! [Y: $i] :
          ( ( domain_of @ ( flip @ ( cross_product @ Y @ universal_class ) ) )
          = ( inverse @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[257]) ).

thf(382,plain,
    ( ( ! [Z: $i] :
          ( ( domain_of @ ( inverse @ Z ) )
          = ( range_of @ Z ) ) )
    = $true ),
    inference(copy,[status(thm)],[256]) ).

thf(383,plain,
    ( ( ! [Z: $i,X: $i,Y: $i] :
          ( ( first @ ( not_subclass_element @ ( restrict @ Z @ X @ ( singleton @ Y ) ) @ null_class ) )
          = ( domain @ Z @ X @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[255]) ).

thf(384,plain,
    ( ( ! [Z: $i,X: $i,Y: $i] :
          ( ( second @ ( not_subclass_element @ ( restrict @ Z @ ( singleton @ X ) @ Y ) @ null_class ) )
          = ( range @ Z @ X @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[254]) ).

thf(385,plain,
    ( ( ! [Xr: $i,X: $i] :
          ( ( range_of @ ( restrict @ Xr @ X @ universal_class ) )
          = ( image @ Xr @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[253]) ).

thf(386,plain,
    ( ( ! [X: $i] :
          ( ( union @ X @ ( singleton @ X ) )
          = ( successor @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[252]) ).

thf(387,plain,
    ( ( subclass @ successor_relation @ ( cross_product @ universal_class @ universal_class ) )
    = $true ),
    inference(copy,[status(thm)],[251]) ).

thf(388,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ ( ordered_pair @ X @ Y ) @ successor_relation )
          | ( ( successor @ X )
            = Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[250]) ).

thf(389,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( ( successor @ X )
           != Y )
          | ~ ( member @ ( ordered_pair @ X @ Y ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( member @ ( ordered_pair @ X @ Y ) @ successor_relation ) ) )
    = $true ),
    inference(copy,[status(thm)],[329]) ).

thf(390,plain,
    ( ( ! [X: $i] :
          ( ~ ( inductive @ X )
          | ( member @ null_class @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[248]) ).

thf(391,plain,
    ( ( ! [X: $i] :
          ( ~ ( inductive @ X )
          | ( subclass @ ( image @ successor_relation @ X ) @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[247]) ).

thf(392,plain,
    ( ( ! [X: $i] :
          ( ~ ( member @ null_class @ X )
          | ~ ( subclass @ ( image @ successor_relation @ X ) @ X )
          | ( inductive @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[246]) ).

thf(393,plain,
    ( ( inductive @ omega )
    = $true ),
    inference(copy,[status(thm)],[245]) ).

thf(394,plain,
    ( ( ! [Y: $i] :
          ( ~ ( inductive @ Y )
          | ( subclass @ omega @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[244]) ).

thf(395,plain,
    ( ( member @ omega @ universal_class )
    = $true ),
    inference(copy,[status(thm)],[243]) ).

thf(396,plain,
    ( ( ! [X: $i] :
          ( ( domain_of @ ( restrict @ element_relation @ universal_class @ X ) )
          = ( sum_class @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[242]) ).

thf(397,plain,
    ( ( ! [X: $i] :
          ( ~ ( member @ X @ universal_class )
          | ( member @ ( sum_class @ X ) @ universal_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[241]) ).

thf(398,plain,
    ( ( ! [X: $i] :
          ( ( complement @ ( image @ element_relation @ ( complement @ X ) ) )
          = ( power_class @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[240]) ).

thf(399,plain,
    ( ( ! [U: $i] :
          ( ~ ( member @ U @ universal_class )
          | ( member @ ( power_class @ U ) @ universal_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[239]) ).

thf(400,plain,
    ( ( ! [Yr: $i,Xr: $i] : ( subclass @ ( compose @ Yr @ Xr ) @ ( cross_product @ universal_class @ universal_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[238]) ).

thf(401,plain,
    ( ( ! [Y: $i,Z: $i,Yr: $i,Xr: $i] :
          ( ~ ( member @ ( ordered_pair @ Y @ Z ) @ ( compose @ Yr @ Xr ) )
          | ( member @ Z @ ( image @ Yr @ ( image @ Xr @ ( singleton @ Y ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[237]) ).

thf(402,plain,
    ( ( ! [Z: $i,Yr: $i,Xr: $i,Y: $i] :
          ( ~ ( member @ Z @ ( image @ Yr @ ( image @ Xr @ ( singleton @ Y ) ) ) )
          | ~ ( member @ ( ordered_pair @ Y @ Z ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( member @ ( ordered_pair @ Y @ Z ) @ ( compose @ Yr @ Xr ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[236]) ).

thf(403,plain,
    ( ( ! [X: $i] :
          ( ~ ( single_valued_class @ X )
          | ( subclass @ ( compose @ X @ ( inverse @ X ) ) @ identity_relation ) ) )
    = $true ),
    inference(copy,[status(thm)],[235]) ).

thf(404,plain,
    ( ( ! [X: $i] :
          ( ~ ( subclass @ ( compose @ X @ ( inverse @ X ) ) @ identity_relation )
          | ( single_valued_class @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[234]) ).

thf(405,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( function @ Xf )
          | ( subclass @ Xf @ ( cross_product @ universal_class @ universal_class ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[233]) ).

thf(406,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( function @ Xf )
          | ( subclass @ ( compose @ Xf @ ( inverse @ Xf ) ) @ identity_relation ) ) )
    = $true ),
    inference(copy,[status(thm)],[232]) ).

thf(407,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( subclass @ Xf @ ( cross_product @ universal_class @ universal_class ) )
          | ~ ( subclass @ ( compose @ Xf @ ( inverse @ Xf ) ) @ identity_relation )
          | ( function @ Xf ) ) )
    = $true ),
    inference(copy,[status(thm)],[231]) ).

thf(408,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( function @ Xf )
          | ! [X: $i] :
              ( ~ ( member @ X @ universal_class )
              | ( member @ ( image @ Xf @ X ) @ universal_class ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[328]) ).

thf(409,plain,
    ( ( ! [X: $i] :
          ( ( X = null_class )
          | ( member @ ( regular @ X ) @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[229]) ).

thf(410,plain,
    ( ( ! [X: $i] :
          ( ( X = null_class )
          | ( ( intersection @ X @ ( regular @ X ) )
            = null_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[228]) ).

thf(411,plain,
    ( ( ! [Xf: $i,Y: $i] :
          ( ( sum_class @ ( image @ Xf @ ( singleton @ Y ) ) )
          = ( apply @ Xf @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[227]) ).

thf(412,plain,
    ( ( function @ choice )
    = $true ),
    inference(copy,[status(thm)],[226]) ).

thf(413,plain,
    ( ( ! [Y: $i] :
          ( ~ ( member @ Y @ universal_class )
          | ( Y = null_class )
          | ( member @ ( apply @ choice @ Y ) @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[225]) ).

thf(414,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( one_to_one @ Xf )
          | ( function @ Xf ) ) )
    = $true ),
    inference(copy,[status(thm)],[224]) ).

thf(415,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( one_to_one @ Xf )
          | ( function @ ( inverse @ Xf ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[223]) ).

thf(416,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( function @ ( inverse @ Xf ) )
          | ~ ( function @ Xf )
          | ( one_to_one @ Xf ) ) )
    = $true ),
    inference(copy,[status(thm)],[222]) ).

thf(417,plain,
    ( ( ( intersection @ ( cross_product @ universal_class @ universal_class ) @ ( intersection @ ( cross_product @ universal_class @ universal_class ) @ ( complement @ ( compose @ ( complement @ element_relation ) @ ( inverse @ element_relation ) ) ) ) )
      = subset_relation )
    = $true ),
    inference(copy,[status(thm)],[221]) ).

thf(418,plain,
    ( ( ( intersection @ ( inverse @ subset_relation ) @ subset_relation )
      = identity_relation )
    = $true ),
    inference(copy,[status(thm)],[220]) ).

thf(419,plain,
    ( ( ! [Xr: $i] :
          ( ( complement @ ( domain_of @ ( intersection @ Xr @ identity_relation ) ) )
          = ( diagonalise @ Xr ) ) )
    = $true ),
    inference(copy,[status(thm)],[219]) ).

thf(420,plain,
    ( ( ! [X: $i] :
          ( ( intersection @ ( domain_of @ X ) @ ( diagonalise @ ( compose @ ( inverse @ element_relation ) @ X ) ) )
          = ( cantor @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[218]) ).

thf(421,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( operation @ Xf )
          | ( function @ Xf ) ) )
    = $true ),
    inference(copy,[status(thm)],[217]) ).

thf(422,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( operation @ Xf )
          | ( ( cross_product @ ( domain_of @ ( domain_of @ Xf ) ) @ ( domain_of @ ( domain_of @ Xf ) ) )
            = ( domain_of @ Xf ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[216]) ).

thf(423,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( operation @ Xf )
          | ( subclass @ ( range_of @ Xf ) @ ( domain_of @ ( domain_of @ Xf ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[215]) ).

thf(424,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( function @ Xf )
          | ( ( cross_product @ ( domain_of @ ( domain_of @ Xf ) ) @ ( domain_of @ ( domain_of @ Xf ) ) )
           != ( domain_of @ Xf ) )
          | ~ ( subclass @ ( range_of @ Xf ) @ ( domain_of @ ( domain_of @ Xf ) ) )
          | ( operation @ Xf ) ) )
    = $true ),
    inference(copy,[status(thm)],[327]) ).

thf(425,plain,
    ( ( ! [Xh: $i] :
          ( ! [Xf1: $i,Xf2: $i] :
              ~ ( compatible @ Xh @ Xf1 @ Xf2 )
          | ( function @ Xh ) ) )
    = $true ),
    inference(copy,[status(thm)],[326]) ).

thf(426,plain,
    ( ( ! [Xh: $i,Xf1: $i] :
          ( ! [Xf2: $i] :
              ~ ( compatible @ Xh @ Xf1 @ Xf2 )
          | ( ( domain_of @ ( domain_of @ Xf1 ) )
            = ( domain_of @ Xh ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[325]) ).

thf(427,plain,
    ( ( ! [Xh: $i,Xf1: $i,Xf2: $i] :
          ( ~ ( compatible @ Xh @ Xf1 @ Xf2 )
          | ( subclass @ ( range_of @ Xh ) @ ( domain_of @ ( domain_of @ Xf2 ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[211]) ).

thf(428,plain,
    ( ( ! [Xh: $i] :
          ( ~ ( function @ Xh )
          | ! [Xf1: $i] :
              ( ( ( domain_of @ ( domain_of @ Xf1 ) )
               != ( domain_of @ Xh ) )
              | ! [Xf2: $i] :
                  ( ~ ( subclass @ ( range_of @ Xh ) @ ( domain_of @ ( domain_of @ Xf2 ) ) )
                  | ( compatible @ Xh @ Xf1 @ Xf2 ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[324]) ).

thf(429,plain,
    ( ( ! [Xh: $i,Xf1: $i] :
          ( ! [Xf2: $i] :
              ~ ( homomorphism @ Xh @ Xf1 @ Xf2 )
          | ( operation @ Xf1 ) ) )
    = $true ),
    inference(copy,[status(thm)],[323]) ).

thf(430,plain,
    ( ( ! [Xh: $i,Xf1: $i,Xf2: $i] :
          ( ~ ( homomorphism @ Xh @ Xf1 @ Xf2 )
          | ( operation @ Xf2 ) ) )
    = $true ),
    inference(copy,[status(thm)],[208]) ).

thf(431,plain,
    ( ( ! [Xh: $i,Xf1: $i,Xf2: $i] :
          ( ~ ( homomorphism @ Xh @ Xf1 @ Xf2 )
          | ( compatible @ Xh @ Xf1 @ Xf2 ) ) )
    = $true ),
    inference(copy,[status(thm)],[207]) ).

thf(432,plain,
    ( ( ! [Xh: $i,Xf1: $i,Xf2: $i] :
          ( ~ ( homomorphism @ Xh @ Xf1 @ Xf2 )
          | ! [X: $i,Y: $i] :
              ( ~ ( member @ ( ordered_pair @ X @ Y ) @ ( domain_of @ Xf1 ) )
              | ( ( apply @ Xf2 @ ( ordered_pair @ ( apply @ Xh @ X ) @ ( apply @ Xh @ Y ) ) )
                = ( apply @ Xh @ ( apply @ Xf1 @ ( ordered_pair @ X @ Y ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[322]) ).

thf(433,plain,
    ( ( ! [Xf1: $i] :
          ( ~ ( operation @ Xf1 )
          | ! [Xf2: $i] :
              ( ~ ( operation @ Xf2 )
              | ! [Xh: $i] :
                  ( ~ ( compatible @ Xh @ Xf1 @ Xf2 )
                  | ( homomorphism @ Xh @ Xf1 @ Xf2 )
                  | ( member @ ( ordered_pair @ ( not_homomorphism1 @ Xh @ Xf1 @ Xf2 ) @ ( not_homomorphism2 @ Xh @ Xf1 @ Xf2 ) ) @ ( domain_of @ Xf1 ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[321]) ).

thf(434,plain,
    ( ( ! [Xf1: $i] :
          ( ~ ( operation @ Xf1 )
          | ! [Xf2: $i] :
              ( ~ ( operation @ Xf2 )
              | ! [Xh: $i] :
                  ( ~ ( compatible @ Xh @ Xf1 @ Xf2 )
                  | ( ( apply @ Xf2 @ ( ordered_pair @ ( apply @ Xh @ ( not_homomorphism1 @ Xh @ Xf1 @ Xf2 ) ) @ ( apply @ Xh @ ( not_homomorphism2 @ Xh @ Xf1 @ Xf2 ) ) ) )
                   != ( apply @ Xh @ ( apply @ Xf1 @ ( ordered_pair @ ( not_homomorphism1 @ Xh @ Xf1 @ Xf2 ) @ ( not_homomorphism2 @ Xh @ Xf1 @ Xf2 ) ) ) ) )
                  | ( homomorphism @ Xh @ Xf1 @ Xf2 ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[320]) ).

thf(435,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ! [U: $i,V: $i] :
              ~ ( member @ ( ordered_pair @ X @ Y ) @ ( cross_product @ U @ V ) )
          | ( member @ X @ ( unordered_pair @ X @ Y ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[319]) ).

thf(436,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ! [U: $i,V: $i] :
              ~ ( member @ ( ordered_pair @ X @ Y ) @ ( cross_product @ U @ V ) )
          | ( member @ Y @ ( unordered_pair @ X @ Y ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[318]) ).

thf(437,plain,
    ( ( ! [U: $i,V: $i] :
          ( ! [X: $i,Y: $i] :
              ~ ( member @ ( ordered_pair @ U @ V ) @ ( cross_product @ X @ Y ) )
          | ( member @ U @ universal_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[317]) ).

thf(438,plain,
    ( ( ! [U: $i,V: $i] :
          ( ! [X: $i,Y: $i] :
              ~ ( member @ ( ordered_pair @ U @ V ) @ ( cross_product @ X @ Y ) )
          | ( member @ V @ universal_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[316]) ).

thf(439,plain,
    ( ( ! [X: $i] : ( subclass @ X @ X ) )
    = $true ),
    inference(copy,[status(thm)],[199]) ).

thf(440,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( subclass @ X @ Y )
          | ! [Z: $i] :
              ( ~ ( subclass @ Y @ Z )
              | ( subclass @ X @ Z ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[315]) ).

thf(441,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( X = Y )
          | ( member @ ( not_subclass_element @ X @ Y ) @ X )
          | ( member @ ( not_subclass_element @ Y @ X ) @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[197]) ).

thf(442,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ ( not_subclass_element @ X @ Y ) @ Y )
          | ( X = Y )
          | ( member @ ( not_subclass_element @ Y @ X ) @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[196]) ).

thf(443,plain,
    ( ( ! [Y: $i,X: $i] :
          ( ~ ( member @ ( not_subclass_element @ Y @ X ) @ X )
          | ( X = Y )
          | ( member @ ( not_subclass_element @ X @ Y ) @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[195]) ).

thf(444,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ ( not_subclass_element @ X @ Y ) @ Y )
          | ~ ( member @ ( not_subclass_element @ Y @ X ) @ X )
          | ( X = Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[194]) ).

thf(445,plain,
    ( ( ! [Y: $i,X: $i] :
          ~ ( member @ Y @ ( intersection @ ( complement @ X ) @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[193]) ).

thf(446,plain,
    ( ( ! [Z: $i] :
          ~ ( member @ Z @ null_class ) )
    = $true ),
    inference(copy,[status(thm)],[192]) ).

thf(447,plain,
    ( ( ! [X: $i] : ( subclass @ null_class @ X ) )
    = $true ),
    inference(copy,[status(thm)],[191]) ).

thf(448,plain,
    ( ( ! [X: $i] :
          ( ~ ( subclass @ X @ null_class )
          | ( X = null_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[190]) ).

thf(449,plain,
    ( ( ! [Z: $i] :
          ( ( Z = null_class )
          | ( member @ ( not_subclass_element @ Z @ null_class ) @ Z ) ) )
    = $true ),
    inference(copy,[status(thm)],[189]) ).

thf(450,plain,
    ( ( member @ null_class @ universal_class )
    = $true ),
    inference(copy,[status(thm)],[188]) ).

thf(451,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( unordered_pair @ X @ Y )
          = ( unordered_pair @ Y @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[187]) ).

thf(452,plain,
    ( ( ! [X: $i,Y: $i] : ( subclass @ ( singleton @ X ) @ ( unordered_pair @ X @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[186]) ).

thf(453,plain,
    ( ( ! [Y: $i,X: $i] : ( subclass @ ( singleton @ Y ) @ ( unordered_pair @ X @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[185]) ).

thf(454,plain,
    ( ( ! [Y: $i] :
          ( ! [X: $i] :
              ( ( unordered_pair @ X @ Y )
              = ( singleton @ X ) )
          | ( member @ Y @ universal_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[314]) ).

thf(455,plain,
    ( ( ! [X: $i] :
          ( ! [Y: $i] :
              ( ( unordered_pair @ X @ Y )
              = ( singleton @ Y ) )
          | ( member @ X @ universal_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[313]) ).

thf(456,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( ( unordered_pair @ X @ Y )
            = null_class )
          | ( member @ X @ universal_class )
          | ( member @ Y @ universal_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[182]) ).

thf(457,plain,
    ( ( ! [X: $i,Y: $i,Z: $i] :
          ( ( ( unordered_pair @ X @ Y )
           != ( unordered_pair @ X @ Z ) )
          | ~ ( member @ ( ordered_pair @ Y @ Z ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( Y = Z ) ) )
    = $true ),
    inference(copy,[status(thm)],[312]) ).

thf(458,plain,
    ( ( ! [X: $i,Z: $i,Y: $i] :
          ( ( ( unordered_pair @ X @ Z )
           != ( unordered_pair @ Y @ Z ) )
          | ~ ( member @ ( ordered_pair @ X @ Y ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( X = Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[311]) ).

thf(459,plain,
    ( ( ! [X: $i] :
          ( ~ ( member @ X @ universal_class )
          | ! [Y: $i] :
              ( ( unordered_pair @ X @ Y )
             != null_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[310]) ).

thf(460,plain,
    ( ( ! [Y: $i] :
          ( ~ ( member @ Y @ universal_class )
          | ! [X: $i] :
              ( ( unordered_pair @ X @ Y )
             != null_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[309]) ).

thf(461,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ! [U: $i,V: $i] :
              ~ ( member @ ( ordered_pair @ X @ Y ) @ ( cross_product @ U @ V ) )
          | ( ( unordered_pair @ X @ Y )
           != null_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[308]) ).

thf(462,plain,
    ( ( ! [X: $i,Z: $i] :
          ( ~ ( member @ X @ Z )
          | ! [Y: $i] :
              ( ~ ( member @ Y @ Z )
              | ( subclass @ ( unordered_pair @ X @ Y ) @ Z ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[307]) ).

thf(463,plain,
    ( ( ! [X: $i] : ( member @ ( singleton @ X ) @ universal_class ) )
    = $true ),
    inference(copy,[status(thm)],[175]) ).

thf(464,plain,
    ( ( ! [Y: $i,X: $i] : ( member @ ( singleton @ Y ) @ ( unordered_pair @ X @ ( singleton @ Y ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[174]) ).

thf(465,plain,
    ( ( ! [X: $i] :
          ( ~ ( member @ X @ universal_class )
          | ( member @ X @ ( singleton @ X ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[173]) ).

thf(466,plain,
    ( ( ! [X: $i] :
          ( ~ ( member @ X @ universal_class )
          | ( ( singleton @ X )
           != null_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[306]) ).

thf(467,plain,
    ( ( member @ null_class @ ( singleton @ null_class ) )
    = $true ),
    inference(copy,[status(thm)],[171]) ).

thf(468,plain,
    ( ( ! [Y: $i,X: $i] :
          ( ~ ( member @ Y @ ( singleton @ X ) )
          | ( Y = X ) ) )
    = $true ),
    inference(copy,[status(thm)],[170]) ).

thf(469,plain,
    ( ( ! [X: $i] :
          ( ( ( singleton @ X )
            = null_class )
          | ( member @ X @ universal_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[305]) ).

thf(470,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( ( singleton @ X )
           != ( singleton @ Y ) )
          | ~ ( member @ X @ universal_class )
          | ( X = Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[304]) ).

thf(471,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( ( singleton @ X )
           != ( singleton @ Y ) )
          | ~ ( member @ Y @ universal_class )
          | ( X = Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[303]) ).

thf(472,plain,
    ( ( ! [Y: $i,Z: $i,X: $i] :
          ( ( ( unordered_pair @ Y @ Z )
           != ( singleton @ X ) )
          | ~ ( member @ X @ universal_class )
          | ( X = Y )
          | ( X = Z ) ) )
    = $true ),
    inference(copy,[status(thm)],[302]) ).

thf(473,plain,
    ( ( ! [Y: $i] :
          ( ~ ( member @ Y @ universal_class )
          | ( member @ ( member_of @ ( singleton @ Y ) ) @ universal_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[165]) ).

thf(474,plain,
    ( ( ! [Y: $i] :
          ( ~ ( member @ Y @ universal_class )
          | ( ( singleton @ ( member_of @ ( singleton @ Y ) ) )
            = ( singleton @ Y ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[164]) ).

thf(475,plain,
    ( ( ! [X: $i] :
          ( ( ( member_of @ X )
            = X )
          | ( member @ ( member_of @ X ) @ universal_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[301]) ).

thf(476,plain,
    ( ( ! [X: $i] :
          ( ( ( singleton @ ( member_of @ X ) )
            = X )
          | ( ( member_of @ X )
            = X ) ) )
    = $true ),
    inference(copy,[status(thm)],[162]) ).

thf(477,plain,
    ( ( ! [U: $i] :
          ( ~ ( member @ U @ universal_class )
          | ( ( member_of @ ( singleton @ U ) )
            = U ) ) )
    = $true ),
    inference(copy,[status(thm)],[161]) ).

thf(478,plain,
    ( ( ! [X: $i] :
          ( ( ( member_of @ X )
            = X )
          | ( member @ ( member_of1 @ X ) @ universal_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[300]) ).

thf(479,plain,
    ( ( ! [X: $i] :
          ( ( ( singleton @ ( member_of1 @ X ) )
            = X )
          | ( ( member_of @ X )
            = X ) ) )
    = $true ),
    inference(copy,[status(thm)],[159]) ).

thf(480,plain,
    ( ( ! [X: $i] :
          ( ( ( singleton @ ( member_of @ X ) )
           != X )
          | ( member @ X @ universal_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[299]) ).

thf(481,plain,
    ( ( ! [X: $i] :
          ( ( ( singleton @ ( member_of @ X ) )
           != X )
          | ! [Y: $i] :
              ( ~ ( member @ Y @ X )
              | ( ( member_of @ X )
                = Y ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[298]) ).

thf(482,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ X @ Y )
          | ( subclass @ ( singleton @ X ) @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[156]) ).

thf(483,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( subclass @ X @ ( singleton @ Y ) )
          | ( X = null_class )
          | ( ( singleton @ Y )
            = X ) ) )
    = $true ),
    inference(copy,[status(thm)],[155]) ).

thf(484,plain,
    ( ( ! [X: $i] :
          ( ( member @ ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ X @ null_class ) ) ) @ X ) @ null_class ) @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ X @ null_class ) ) ) @ X ) )
          | ( ( singleton @ ( not_subclass_element @ X @ null_class ) )
            = X )
          | ( X = null_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[154]) ).

thf(485,plain,
    ( ( ! [X: $i] :
          ( ( member @ ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ X @ null_class ) ) ) @ X ) @ null_class ) @ X )
          | ( ( singleton @ ( not_subclass_element @ X @ null_class ) )
            = X )
          | ( X = null_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[153]) ).

thf(486,plain,
    ( ( ! [X: $i] :
          ( ( ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ X @ null_class ) ) ) @ X ) @ null_class )
           != ( not_subclass_element @ X @ null_class ) )
          | ( ( singleton @ ( not_subclass_element @ X @ null_class ) )
            = X )
          | ( X = null_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[297]) ).

thf(487,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( unordered_pair @ X @ Y )
          = ( union @ ( singleton @ X ) @ ( singleton @ Y ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[151]) ).

thf(488,plain,
    ( ( ! [X: $i,Y: $i] : ( member @ ( ordered_pair @ X @ Y ) @ universal_class ) )
    = $true ),
    inference(copy,[status(thm)],[150]) ).

thf(489,plain,
    ( ( ~ $false ) = $true ),
    inference(copy,[status(thm)],[296]) ).

thf(490,plain,
    ( ( member @ ( singleton @ x ) @ ( ordered_pair @ x @ y ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[343]) ).

thf(491,plain,
    ! [SV1: $i] :
      ( ( ! [SY275: $i] :
            ( ~ ( subclass @ SV1 @ SY275 )
            | ! [SY276: $i] :
                ( ~ ( member @ SY276 @ SV1 )
                | ( member @ SY276 @ SY275 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[344]) ).

thf(492,plain,
    ! [SV2: $i] :
      ( ( ! [SY277: $i] :
            ( ( member @ ( not_subclass_element @ SV2 @ SY277 ) @ SV2 )
            | ( subclass @ SV2 @ SY277 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[345]) ).

thf(493,plain,
    ! [SV3: $i] :
      ( ( ! [SY278: $i] :
            ( ~ ( member @ ( not_subclass_element @ SV3 @ SY278 ) @ SY278 )
            | ( subclass @ SV3 @ SY278 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[346]) ).

thf(494,plain,
    ! [SV4: $i] :
      ( ( subclass @ SV4 @ universal_class )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[347]) ).

thf(495,plain,
    ! [SV5: $i] :
      ( ( ! [SY279: $i] :
            ( ( SV5 != SY279 )
            | ( subclass @ SV5 @ SY279 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[348]) ).

thf(496,plain,
    ! [SV6: $i] :
      ( ( ! [SY280: $i] :
            ( ( SV6 != SY280 )
            | ( subclass @ SY280 @ SV6 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[349]) ).

thf(497,plain,
    ! [SV7: $i] :
      ( ( ! [SY281: $i] :
            ( ~ ( subclass @ SV7 @ SY281 )
            | ~ ( subclass @ SY281 @ SV7 )
            | ( SV7 = SY281 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[350]) ).

thf(498,plain,
    ! [SV8: $i] :
      ( ( ! [SY282: $i,SY283: $i] :
            ( ~ ( member @ SV8 @ ( unordered_pair @ SY282 @ SY283 ) )
            | ( SV8 = SY282 )
            | ( SV8 = SY283 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[351]) ).

thf(499,plain,
    ! [SV9: $i] :
      ( ( ~ ( member @ SV9 @ universal_class )
        | ! [SY284: $i] : ( member @ SV9 @ ( unordered_pair @ SV9 @ SY284 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[352]) ).

thf(500,plain,
    ! [SV10: $i] :
      ( ( ~ ( member @ SV10 @ universal_class )
        | ! [SY285: $i] : ( member @ SV10 @ ( unordered_pair @ SY285 @ SV10 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[353]) ).

thf(501,plain,
    ! [SV11: $i] :
      ( ( ! [SY286: $i] : ( member @ ( unordered_pair @ SV11 @ SY286 ) @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[354]) ).

thf(502,plain,
    ! [SV12: $i] :
      ( ( ( unordered_pair @ SV12 @ SV12 )
        = ( singleton @ SV12 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[355]) ).

thf(503,plain,
    ! [SV13: $i] :
      ( ( ! [SY287: $i] :
            ( ( unordered_pair @ ( singleton @ SV13 ) @ ( unordered_pair @ SV13 @ ( singleton @ SY287 ) ) )
            = ( ordered_pair @ SV13 @ SY287 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[356]) ).

thf(504,plain,
    ! [SV14: $i] :
      ( ( ! [SY288: $i,SY289: $i] :
            ( ! [SY290: $i] :
                ~ ( member @ ( ordered_pair @ SV14 @ SY288 ) @ ( cross_product @ SY289 @ SY290 ) )
            | ( member @ SV14 @ SY289 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[357]) ).

thf(505,plain,
    ! [SV15: $i] :
      ( ( ! [SY291: $i,SY292: $i,SY293: $i] :
            ( ~ ( member @ ( ordered_pair @ SV15 @ SY291 ) @ ( cross_product @ SY292 @ SY293 ) )
            | ( member @ SY291 @ SY293 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[358]) ).

thf(506,plain,
    ! [SV16: $i] :
      ( ( ! [SY294: $i] :
            ( ~ ( member @ SV16 @ SY294 )
            | ! [SY295: $i,SY296: $i] :
                ( ~ ( member @ SY295 @ SY296 )
                | ( member @ ( ordered_pair @ SV16 @ SY295 ) @ ( cross_product @ SY294 @ SY296 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[359]) ).

thf(507,plain,
    ! [SV17: $i] :
      ( ( ! [SY297: $i,SY298: $i] :
            ~ ( member @ SV17 @ ( cross_product @ SY297 @ SY298 ) )
        | ( ( ordered_pair @ ( first @ SV17 ) @ ( second @ SV17 ) )
          = SV17 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[360]) ).

thf(508,plain,
    ! [SV18: $i] :
      ( ( ! [SY299: $i] :
            ( ~ ( member @ ( ordered_pair @ SV18 @ SY299 ) @ element_relation )
            | ( member @ SV18 @ SY299 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[362]) ).

thf(509,plain,
    ! [SV19: $i] :
      ( ( ! [SY300: $i] :
            ( ~ ( member @ ( ordered_pair @ SV19 @ SY300 ) @ ( cross_product @ universal_class @ universal_class ) )
            | ~ ( member @ SV19 @ SY300 )
            | ( member @ ( ordered_pair @ SV19 @ SY300 ) @ element_relation ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[363]) ).

thf(510,plain,
    ! [SV20: $i] :
      ( ( ! [SY301: $i] :
            ( ! [SY302: $i] :
                ~ ( member @ SV20 @ ( intersection @ SY301 @ SY302 ) )
            | ( member @ SV20 @ SY301 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[364]) ).

thf(511,plain,
    ! [SV21: $i] :
      ( ( ! [SY303: $i,SY304: $i] :
            ( ~ ( member @ SV21 @ ( intersection @ SY303 @ SY304 ) )
            | ( member @ SV21 @ SY304 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[365]) ).

thf(512,plain,
    ! [SV22: $i] :
      ( ( ! [SY305: $i] :
            ( ~ ( member @ SV22 @ SY305 )
            | ! [SY306: $i] :
                ( ~ ( member @ SV22 @ SY306 )
                | ( member @ SV22 @ ( intersection @ SY305 @ SY306 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[366]) ).

thf(513,plain,
    ! [SV23: $i] :
      ( ( ! [SY307: $i] :
            ( ~ ( member @ SV23 @ ( complement @ SY307 ) )
            | ~ ( member @ SV23 @ SY307 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[367]) ).

thf(514,plain,
    ! [SV24: $i] :
      ( ( ~ ( member @ SV24 @ universal_class )
        | ! [SY308: $i] :
            ( ( member @ SV24 @ ( complement @ SY308 ) )
            | ( member @ SV24 @ SY308 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[368]) ).

thf(515,plain,
    ! [SV25: $i] :
      ( ( ! [SY309: $i] :
            ( ( complement @ ( intersection @ ( complement @ SV25 ) @ ( complement @ SY309 ) ) )
            = ( union @ SV25 @ SY309 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[369]) ).

thf(516,plain,
    ! [SV26: $i] :
      ( ( ! [SY310: $i] :
            ( ( intersection @ ( complement @ ( intersection @ SV26 @ SY310 ) ) @ ( complement @ ( intersection @ ( complement @ SV26 ) @ ( complement @ SY310 ) ) ) )
            = ( symmetric_difference @ SV26 @ SY310 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[370]) ).

thf(517,plain,
    ! [SV27: $i] :
      ( ( ! [SY311: $i,SY312: $i] :
            ( ( intersection @ SV27 @ ( cross_product @ SY311 @ SY312 ) )
            = ( restrict @ SV27 @ SY311 @ SY312 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[371]) ).

thf(518,plain,
    ! [SV28: $i] :
      ( ( ! [SY313: $i,SY314: $i] :
            ( ( intersection @ ( cross_product @ SV28 @ SY313 ) @ SY314 )
            = ( restrict @ SY314 @ SV28 @ SY313 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[372]) ).

thf(519,plain,
    ! [SV29: $i] :
      ( ( ! [SY315: $i] :
            ( ( ( restrict @ SV29 @ ( singleton @ SY315 ) @ universal_class )
             != null_class )
            | ~ ( member @ SY315 @ ( domain_of @ SV29 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[373]) ).

thf(520,plain,
    ! [SV30: $i] :
      ( ( ~ ( member @ SV30 @ universal_class )
        | ! [SY316: $i] :
            ( ( ( restrict @ SY316 @ ( singleton @ SV30 ) @ universal_class )
              = null_class )
            | ( member @ SV30 @ ( domain_of @ SY316 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[374]) ).

thf(521,plain,
    ! [SV31: $i] :
      ( ( subclass @ ( rotate @ SV31 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[375]) ).

thf(522,plain,
    ! [SV32: $i] :
      ( ( ! [SY317: $i,SY318: $i,SY319: $i] :
            ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV32 @ SY317 ) @ SY318 ) @ ( rotate @ SY319 ) )
            | ( member @ ( ordered_pair @ ( ordered_pair @ SY317 @ SY318 ) @ SV32 ) @ SY319 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[376]) ).

thf(523,plain,
    ! [SV33: $i] :
      ( ( ! [SY320: $i,SY321: $i,SY322: $i] :
            ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV33 @ SY320 ) @ SY321 ) @ SY322 )
            | ~ ( member @ ( ordered_pair @ ( ordered_pair @ SY321 @ SV33 ) @ SY320 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
            | ( member @ ( ordered_pair @ ( ordered_pair @ SY321 @ SV33 ) @ SY320 ) @ ( rotate @ SY322 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[377]) ).

thf(524,plain,
    ! [SV34: $i] :
      ( ( subclass @ ( flip @ SV34 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[378]) ).

thf(525,plain,
    ! [SV35: $i] :
      ( ( ! [SY323: $i,SY324: $i,SY325: $i] :
            ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV35 @ SY323 ) @ SY324 ) @ ( flip @ SY325 ) )
            | ( member @ ( ordered_pair @ ( ordered_pair @ SY323 @ SV35 ) @ SY324 ) @ SY325 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[379]) ).

thf(526,plain,
    ! [SV36: $i] :
      ( ( ! [SY326: $i,SY327: $i,SY328: $i] :
            ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV36 @ SY326 ) @ SY327 ) @ SY328 )
            | ~ ( member @ ( ordered_pair @ ( ordered_pair @ SY326 @ SV36 ) @ SY327 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
            | ( member @ ( ordered_pair @ ( ordered_pair @ SY326 @ SV36 ) @ SY327 ) @ ( flip @ SY328 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[380]) ).

thf(527,plain,
    ! [SV37: $i] :
      ( ( ( domain_of @ ( flip @ ( cross_product @ SV37 @ universal_class ) ) )
        = ( inverse @ SV37 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[381]) ).

thf(528,plain,
    ! [SV38: $i] :
      ( ( ( domain_of @ ( inverse @ SV38 ) )
        = ( range_of @ SV38 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[382]) ).

thf(529,plain,
    ! [SV39: $i] :
      ( ( ! [SY329: $i,SY330: $i] :
            ( ( first @ ( not_subclass_element @ ( restrict @ SV39 @ SY329 @ ( singleton @ SY330 ) ) @ null_class ) )
            = ( domain @ SV39 @ SY329 @ SY330 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[383]) ).

thf(530,plain,
    ! [SV40: $i] :
      ( ( ! [SY331: $i,SY332: $i] :
            ( ( second @ ( not_subclass_element @ ( restrict @ SV40 @ ( singleton @ SY331 ) @ SY332 ) @ null_class ) )
            = ( range @ SV40 @ SY331 @ SY332 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[384]) ).

thf(531,plain,
    ! [SV41: $i] :
      ( ( ! [SY333: $i] :
            ( ( range_of @ ( restrict @ SV41 @ SY333 @ universal_class ) )
            = ( image @ SV41 @ SY333 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[385]) ).

thf(532,plain,
    ! [SV42: $i] :
      ( ( ( union @ SV42 @ ( singleton @ SV42 ) )
        = ( successor @ SV42 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[386]) ).

thf(533,plain,
    ! [SV43: $i] :
      ( ( ! [SY334: $i] :
            ( ~ ( member @ ( ordered_pair @ SV43 @ SY334 ) @ successor_relation )
            | ( ( successor @ SV43 )
              = SY334 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[388]) ).

thf(534,plain,
    ! [SV44: $i] :
      ( ( ! [SY335: $i] :
            ( ( ( successor @ SV44 )
             != SY335 )
            | ~ ( member @ ( ordered_pair @ SV44 @ SY335 ) @ ( cross_product @ universal_class @ universal_class ) )
            | ( member @ ( ordered_pair @ SV44 @ SY335 ) @ successor_relation ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[389]) ).

thf(535,plain,
    ! [SV45: $i] :
      ( ( ~ ( inductive @ SV45 )
        | ( member @ null_class @ SV45 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[390]) ).

thf(536,plain,
    ! [SV46: $i] :
      ( ( ~ ( inductive @ SV46 )
        | ( subclass @ ( image @ successor_relation @ SV46 ) @ SV46 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[391]) ).

thf(537,plain,
    ! [SV47: $i] :
      ( ( ~ ( member @ null_class @ SV47 )
        | ~ ( subclass @ ( image @ successor_relation @ SV47 ) @ SV47 )
        | ( inductive @ SV47 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[392]) ).

thf(538,plain,
    ! [SV48: $i] :
      ( ( ~ ( inductive @ SV48 )
        | ( subclass @ omega @ SV48 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[394]) ).

thf(539,plain,
    ! [SV49: $i] :
      ( ( ( domain_of @ ( restrict @ element_relation @ universal_class @ SV49 ) )
        = ( sum_class @ SV49 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[396]) ).

thf(540,plain,
    ! [SV50: $i] :
      ( ( ~ ( member @ SV50 @ universal_class )
        | ( member @ ( sum_class @ SV50 ) @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[397]) ).

thf(541,plain,
    ! [SV51: $i] :
      ( ( ( complement @ ( image @ element_relation @ ( complement @ SV51 ) ) )
        = ( power_class @ SV51 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[398]) ).

thf(542,plain,
    ! [SV52: $i] :
      ( ( ~ ( member @ SV52 @ universal_class )
        | ( member @ ( power_class @ SV52 ) @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[399]) ).

thf(543,plain,
    ! [SV53: $i] :
      ( ( ! [SY336: $i] : ( subclass @ ( compose @ SV53 @ SY336 ) @ ( cross_product @ universal_class @ universal_class ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[400]) ).

thf(544,plain,
    ! [SV54: $i] :
      ( ( ! [SY337: $i,SY338: $i,SY339: $i] :
            ( ~ ( member @ ( ordered_pair @ SV54 @ SY337 ) @ ( compose @ SY338 @ SY339 ) )
            | ( member @ SY337 @ ( image @ SY338 @ ( image @ SY339 @ ( singleton @ SV54 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[401]) ).

thf(545,plain,
    ! [SV55: $i] :
      ( ( ! [SY340: $i,SY341: $i,SY342: $i] :
            ( ~ ( member @ SV55 @ ( image @ SY340 @ ( image @ SY341 @ ( singleton @ SY342 ) ) ) )
            | ~ ( member @ ( ordered_pair @ SY342 @ SV55 ) @ ( cross_product @ universal_class @ universal_class ) )
            | ( member @ ( ordered_pair @ SY342 @ SV55 ) @ ( compose @ SY340 @ SY341 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[402]) ).

thf(546,plain,
    ! [SV56: $i] :
      ( ( ~ ( single_valued_class @ SV56 )
        | ( subclass @ ( compose @ SV56 @ ( inverse @ SV56 ) ) @ identity_relation ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[403]) ).

thf(547,plain,
    ! [SV57: $i] :
      ( ( ~ ( subclass @ ( compose @ SV57 @ ( inverse @ SV57 ) ) @ identity_relation )
        | ( single_valued_class @ SV57 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[404]) ).

thf(548,plain,
    ! [SV58: $i] :
      ( ( ~ ( function @ SV58 )
        | ( subclass @ SV58 @ ( cross_product @ universal_class @ universal_class ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[405]) ).

thf(549,plain,
    ! [SV59: $i] :
      ( ( ~ ( function @ SV59 )
        | ( subclass @ ( compose @ SV59 @ ( inverse @ SV59 ) ) @ identity_relation ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[406]) ).

thf(550,plain,
    ! [SV60: $i] :
      ( ( ~ ( subclass @ SV60 @ ( cross_product @ universal_class @ universal_class ) )
        | ~ ( subclass @ ( compose @ SV60 @ ( inverse @ SV60 ) ) @ identity_relation )
        | ( function @ SV60 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[407]) ).

thf(551,plain,
    ! [SV61: $i] :
      ( ( ~ ( function @ SV61 )
        | ! [SY343: $i] :
            ( ~ ( member @ SY343 @ universal_class )
            | ( member @ ( image @ SV61 @ SY343 ) @ universal_class ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[408]) ).

thf(552,plain,
    ! [SV62: $i] :
      ( ( ( SV62 = null_class )
        | ( member @ ( regular @ SV62 ) @ SV62 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[409]) ).

thf(553,plain,
    ! [SV63: $i] :
      ( ( ( SV63 = null_class )
        | ( ( intersection @ SV63 @ ( regular @ SV63 ) )
          = null_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[410]) ).

thf(554,plain,
    ! [SV64: $i] :
      ( ( ! [SY344: $i] :
            ( ( sum_class @ ( image @ SV64 @ ( singleton @ SY344 ) ) )
            = ( apply @ SV64 @ SY344 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[411]) ).

thf(555,plain,
    ! [SV65: $i] :
      ( ( ~ ( member @ SV65 @ universal_class )
        | ( SV65 = null_class )
        | ( member @ ( apply @ choice @ SV65 ) @ SV65 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[413]) ).

thf(556,plain,
    ! [SV66: $i] :
      ( ( ~ ( one_to_one @ SV66 )
        | ( function @ SV66 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[414]) ).

thf(557,plain,
    ! [SV67: $i] :
      ( ( ~ ( one_to_one @ SV67 )
        | ( function @ ( inverse @ SV67 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[415]) ).

thf(558,plain,
    ! [SV68: $i] :
      ( ( ~ ( function @ ( inverse @ SV68 ) )
        | ~ ( function @ SV68 )
        | ( one_to_one @ SV68 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[416]) ).

thf(559,plain,
    ! [SV69: $i] :
      ( ( ( complement @ ( domain_of @ ( intersection @ SV69 @ identity_relation ) ) )
        = ( diagonalise @ SV69 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[419]) ).

thf(560,plain,
    ! [SV70: $i] :
      ( ( ( intersection @ ( domain_of @ SV70 ) @ ( diagonalise @ ( compose @ ( inverse @ element_relation ) @ SV70 ) ) )
        = ( cantor @ SV70 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[420]) ).

thf(561,plain,
    ! [SV71: $i] :
      ( ( ~ ( operation @ SV71 )
        | ( function @ SV71 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[421]) ).

thf(562,plain,
    ! [SV72: $i] :
      ( ( ~ ( operation @ SV72 )
        | ( ( cross_product @ ( domain_of @ ( domain_of @ SV72 ) ) @ ( domain_of @ ( domain_of @ SV72 ) ) )
          = ( domain_of @ SV72 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[422]) ).

thf(563,plain,
    ! [SV73: $i] :
      ( ( ~ ( operation @ SV73 )
        | ( subclass @ ( range_of @ SV73 ) @ ( domain_of @ ( domain_of @ SV73 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[423]) ).

thf(564,plain,
    ! [SV74: $i] :
      ( ( ~ ( function @ SV74 )
        | ( ( cross_product @ ( domain_of @ ( domain_of @ SV74 ) ) @ ( domain_of @ ( domain_of @ SV74 ) ) )
         != ( domain_of @ SV74 ) )
        | ~ ( subclass @ ( range_of @ SV74 ) @ ( domain_of @ ( domain_of @ SV74 ) ) )
        | ( operation @ SV74 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[424]) ).

thf(565,plain,
    ! [SV75: $i] :
      ( ( ! [SY345: $i,SY346: $i] :
            ~ ( compatible @ SV75 @ SY345 @ SY346 )
        | ( function @ SV75 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[425]) ).

thf(566,plain,
    ! [SV76: $i] :
      ( ( ! [SY347: $i] :
            ( ! [SY348: $i] :
                ~ ( compatible @ SV76 @ SY347 @ SY348 )
            | ( ( domain_of @ ( domain_of @ SY347 ) )
              = ( domain_of @ SV76 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[426]) ).

thf(567,plain,
    ! [SV77: $i] :
      ( ( ! [SY349: $i,SY350: $i] :
            ( ~ ( compatible @ SV77 @ SY349 @ SY350 )
            | ( subclass @ ( range_of @ SV77 ) @ ( domain_of @ ( domain_of @ SY350 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[427]) ).

thf(568,plain,
    ! [SV78: $i] :
      ( ( ~ ( function @ SV78 )
        | ! [SY351: $i] :
            ( ( ( domain_of @ ( domain_of @ SY351 ) )
             != ( domain_of @ SV78 ) )
            | ! [SY352: $i] :
                ( ~ ( subclass @ ( range_of @ SV78 ) @ ( domain_of @ ( domain_of @ SY352 ) ) )
                | ( compatible @ SV78 @ SY351 @ SY352 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[428]) ).

thf(569,plain,
    ! [SV79: $i] :
      ( ( ! [SY353: $i] :
            ( ! [SY354: $i] :
                ~ ( homomorphism @ SV79 @ SY353 @ SY354 )
            | ( operation @ SY353 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[429]) ).

thf(570,plain,
    ! [SV80: $i] :
      ( ( ! [SY355: $i,SY356: $i] :
            ( ~ ( homomorphism @ SV80 @ SY355 @ SY356 )
            | ( operation @ SY356 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[430]) ).

thf(571,plain,
    ! [SV81: $i] :
      ( ( ! [SY357: $i,SY358: $i] :
            ( ~ ( homomorphism @ SV81 @ SY357 @ SY358 )
            | ( compatible @ SV81 @ SY357 @ SY358 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[431]) ).

thf(572,plain,
    ! [SV82: $i] :
      ( ( ! [SY359: $i,SY360: $i] :
            ( ~ ( homomorphism @ SV82 @ SY359 @ SY360 )
            | ! [SY361: $i,SY362: $i] :
                ( ~ ( member @ ( ordered_pair @ SY361 @ SY362 ) @ ( domain_of @ SY359 ) )
                | ( ( apply @ SY360 @ ( ordered_pair @ ( apply @ SV82 @ SY361 ) @ ( apply @ SV82 @ SY362 ) ) )
                  = ( apply @ SV82 @ ( apply @ SY359 @ ( ordered_pair @ SY361 @ SY362 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[432]) ).

thf(573,plain,
    ! [SV83: $i] :
      ( ( ~ ( operation @ SV83 )
        | ! [SY363: $i] :
            ( ~ ( operation @ SY363 )
            | ! [SY364: $i] :
                ( ~ ( compatible @ SY364 @ SV83 @ SY363 )
                | ( homomorphism @ SY364 @ SV83 @ SY363 )
                | ( member @ ( ordered_pair @ ( not_homomorphism1 @ SY364 @ SV83 @ SY363 ) @ ( not_homomorphism2 @ SY364 @ SV83 @ SY363 ) ) @ ( domain_of @ SV83 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[433]) ).

thf(574,plain,
    ! [SV84: $i] :
      ( ( ~ ( operation @ SV84 )
        | ! [SY365: $i] :
            ( ~ ( operation @ SY365 )
            | ! [SY366: $i] :
                ( ~ ( compatible @ SY366 @ SV84 @ SY365 )
                | ( ( apply @ SY365 @ ( ordered_pair @ ( apply @ SY366 @ ( not_homomorphism1 @ SY366 @ SV84 @ SY365 ) ) @ ( apply @ SY366 @ ( not_homomorphism2 @ SY366 @ SV84 @ SY365 ) ) ) )
                 != ( apply @ SY366 @ ( apply @ SV84 @ ( ordered_pair @ ( not_homomorphism1 @ SY366 @ SV84 @ SY365 ) @ ( not_homomorphism2 @ SY366 @ SV84 @ SY365 ) ) ) ) )
                | ( homomorphism @ SY366 @ SV84 @ SY365 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[434]) ).

thf(575,plain,
    ! [SV85: $i] :
      ( ( ! [SY367: $i] :
            ( ! [SY368: $i,SY369: $i] :
                ~ ( member @ ( ordered_pair @ SV85 @ SY367 ) @ ( cross_product @ SY368 @ SY369 ) )
            | ( member @ SV85 @ ( unordered_pair @ SV85 @ SY367 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[435]) ).

thf(576,plain,
    ! [SV86: $i] :
      ( ( ! [SY370: $i] :
            ( ! [SY371: $i,SY372: $i] :
                ~ ( member @ ( ordered_pair @ SV86 @ SY370 ) @ ( cross_product @ SY371 @ SY372 ) )
            | ( member @ SY370 @ ( unordered_pair @ SV86 @ SY370 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[436]) ).

thf(577,plain,
    ! [SV87: $i] :
      ( ( ! [SY373: $i] :
            ( ! [SY374: $i,SY375: $i] :
                ~ ( member @ ( ordered_pair @ SV87 @ SY373 ) @ ( cross_product @ SY374 @ SY375 ) )
            | ( member @ SV87 @ universal_class ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[437]) ).

thf(578,plain,
    ! [SV88: $i] :
      ( ( ! [SY376: $i] :
            ( ! [SY377: $i,SY378: $i] :
                ~ ( member @ ( ordered_pair @ SV88 @ SY376 ) @ ( cross_product @ SY377 @ SY378 ) )
            | ( member @ SY376 @ universal_class ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[438]) ).

thf(579,plain,
    ! [SV89: $i] :
      ( ( subclass @ SV89 @ SV89 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[439]) ).

thf(580,plain,
    ! [SV90: $i] :
      ( ( ! [SY379: $i] :
            ( ~ ( subclass @ SV90 @ SY379 )
            | ! [SY380: $i] :
                ( ~ ( subclass @ SY379 @ SY380 )
                | ( subclass @ SV90 @ SY380 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[440]) ).

thf(581,plain,
    ! [SV91: $i] :
      ( ( ! [SY381: $i] :
            ( ( SV91 = SY381 )
            | ( member @ ( not_subclass_element @ SV91 @ SY381 ) @ SV91 )
            | ( member @ ( not_subclass_element @ SY381 @ SV91 ) @ SY381 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[441]) ).

thf(582,plain,
    ! [SV92: $i] :
      ( ( ! [SY382: $i] :
            ( ~ ( member @ ( not_subclass_element @ SV92 @ SY382 ) @ SY382 )
            | ( SV92 = SY382 )
            | ( member @ ( not_subclass_element @ SY382 @ SV92 ) @ SY382 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[442]) ).

thf(583,plain,
    ! [SV93: $i] :
      ( ( ! [SY383: $i] :
            ( ~ ( member @ ( not_subclass_element @ SV93 @ SY383 ) @ SY383 )
            | ( SY383 = SV93 )
            | ( member @ ( not_subclass_element @ SY383 @ SV93 ) @ SY383 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[443]) ).

thf(584,plain,
    ! [SV94: $i] :
      ( ( ! [SY384: $i] :
            ( ~ ( member @ ( not_subclass_element @ SV94 @ SY384 ) @ SY384 )
            | ~ ( member @ ( not_subclass_element @ SY384 @ SV94 ) @ SV94 )
            | ( SV94 = SY384 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[444]) ).

thf(585,plain,
    ! [SV95: $i] :
      ( ( ! [SY385: $i] :
            ~ ( member @ SV95 @ ( intersection @ ( complement @ SY385 ) @ SY385 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[445]) ).

thf(586,plain,
    ! [SV96: $i] :
      ( ( ~ ( member @ SV96 @ null_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[446]) ).

thf(587,plain,
    ! [SV97: $i] :
      ( ( subclass @ null_class @ SV97 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[447]) ).

thf(588,plain,
    ! [SV98: $i] :
      ( ( ~ ( subclass @ SV98 @ null_class )
        | ( SV98 = null_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[448]) ).

thf(589,plain,
    ! [SV99: $i] :
      ( ( ( SV99 = null_class )
        | ( member @ ( not_subclass_element @ SV99 @ null_class ) @ SV99 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[449]) ).

thf(590,plain,
    ! [SV100: $i] :
      ( ( ! [SY386: $i] :
            ( ( unordered_pair @ SV100 @ SY386 )
            = ( unordered_pair @ SY386 @ SV100 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[451]) ).

thf(591,plain,
    ! [SV101: $i] :
      ( ( ! [SY387: $i] : ( subclass @ ( singleton @ SV101 ) @ ( unordered_pair @ SV101 @ SY387 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[452]) ).

thf(592,plain,
    ! [SV102: $i] :
      ( ( ! [SY388: $i] : ( subclass @ ( singleton @ SV102 ) @ ( unordered_pair @ SY388 @ SV102 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[453]) ).

thf(593,plain,
    ! [SV103: $i] :
      ( ( ! [SY389: $i] :
            ( ( unordered_pair @ SY389 @ SV103 )
            = ( singleton @ SY389 ) )
        | ( member @ SV103 @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[454]) ).

thf(594,plain,
    ! [SV104: $i] :
      ( ( ! [SY390: $i] :
            ( ( unordered_pair @ SV104 @ SY390 )
            = ( singleton @ SY390 ) )
        | ( member @ SV104 @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[455]) ).

thf(595,plain,
    ! [SV105: $i] :
      ( ( ! [SY391: $i] :
            ( ( ( unordered_pair @ SV105 @ SY391 )
              = null_class )
            | ( member @ SV105 @ universal_class )
            | ( member @ SY391 @ universal_class ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[456]) ).

thf(596,plain,
    ! [SV106: $i] :
      ( ( ! [SY392: $i,SY393: $i] :
            ( ( ( unordered_pair @ SV106 @ SY392 )
             != ( unordered_pair @ SV106 @ SY393 ) )
            | ~ ( member @ ( ordered_pair @ SY392 @ SY393 ) @ ( cross_product @ universal_class @ universal_class ) )
            | ( SY392 = SY393 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[457]) ).

thf(597,plain,
    ! [SV107: $i] :
      ( ( ! [SY394: $i,SY395: $i] :
            ( ( ( unordered_pair @ SV107 @ SY394 )
             != ( unordered_pair @ SY395 @ SY394 ) )
            | ~ ( member @ ( ordered_pair @ SV107 @ SY395 ) @ ( cross_product @ universal_class @ universal_class ) )
            | ( SV107 = SY395 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[458]) ).

thf(598,plain,
    ! [SV108: $i] :
      ( ( ~ ( member @ SV108 @ universal_class )
        | ! [SY396: $i] :
            ( ( unordered_pair @ SV108 @ SY396 )
           != null_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[459]) ).

thf(599,plain,
    ! [SV109: $i] :
      ( ( ~ ( member @ SV109 @ universal_class )
        | ! [SY397: $i] :
            ( ( unordered_pair @ SY397 @ SV109 )
           != null_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[460]) ).

thf(600,plain,
    ! [SV110: $i] :
      ( ( ! [SY398: $i] :
            ( ! [SY399: $i,SY400: $i] :
                ~ ( member @ ( ordered_pair @ SV110 @ SY398 ) @ ( cross_product @ SY399 @ SY400 ) )
            | ( ( unordered_pair @ SV110 @ SY398 )
             != null_class ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[461]) ).

thf(601,plain,
    ! [SV111: $i] :
      ( ( ! [SY401: $i] :
            ( ~ ( member @ SV111 @ SY401 )
            | ! [SY402: $i] :
                ( ~ ( member @ SY402 @ SY401 )
                | ( subclass @ ( unordered_pair @ SV111 @ SY402 ) @ SY401 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[462]) ).

thf(602,plain,
    ! [SV112: $i] :
      ( ( member @ ( singleton @ SV112 ) @ universal_class )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[463]) ).

thf(603,plain,
    ! [SV113: $i] :
      ( ( ! [SY403: $i] : ( member @ ( singleton @ SV113 ) @ ( unordered_pair @ SY403 @ ( singleton @ SV113 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[464]) ).

thf(604,plain,
    ! [SV114: $i] :
      ( ( ~ ( member @ SV114 @ universal_class )
        | ( member @ SV114 @ ( singleton @ SV114 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[465]) ).

thf(605,plain,
    ! [SV115: $i] :
      ( ( ~ ( member @ SV115 @ universal_class )
        | ( ( singleton @ SV115 )
         != null_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[466]) ).

thf(606,plain,
    ! [SV116: $i] :
      ( ( ! [SY404: $i] :
            ( ~ ( member @ SV116 @ ( singleton @ SY404 ) )
            | ( SV116 = SY404 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[468]) ).

thf(607,plain,
    ! [SV117: $i] :
      ( ( ( ( singleton @ SV117 )
          = null_class )
        | ( member @ SV117 @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[469]) ).

thf(608,plain,
    ! [SV118: $i] :
      ( ( ! [SY405: $i] :
            ( ( ( singleton @ SV118 )
             != ( singleton @ SY405 ) )
            | ~ ( member @ SV118 @ universal_class )
            | ( SV118 = SY405 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[470]) ).

thf(609,plain,
    ! [SV119: $i] :
      ( ( ! [SY406: $i] :
            ( ( ( singleton @ SV119 )
             != ( singleton @ SY406 ) )
            | ~ ( member @ SY406 @ universal_class )
            | ( SV119 = SY406 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[471]) ).

thf(610,plain,
    ! [SV120: $i] :
      ( ( ! [SY407: $i,SY408: $i] :
            ( ( ( unordered_pair @ SV120 @ SY407 )
             != ( singleton @ SY408 ) )
            | ~ ( member @ SY408 @ universal_class )
            | ( SY408 = SV120 )
            | ( SY408 = SY407 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[472]) ).

thf(611,plain,
    ! [SV121: $i] :
      ( ( ~ ( member @ SV121 @ universal_class )
        | ( member @ ( member_of @ ( singleton @ SV121 ) ) @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[473]) ).

thf(612,plain,
    ! [SV122: $i] :
      ( ( ~ ( member @ SV122 @ universal_class )
        | ( ( singleton @ ( member_of @ ( singleton @ SV122 ) ) )
          = ( singleton @ SV122 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[474]) ).

thf(613,plain,
    ! [SV123: $i] :
      ( ( ( ( member_of @ SV123 )
          = SV123 )
        | ( member @ ( member_of @ SV123 ) @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[475]) ).

thf(614,plain,
    ! [SV124: $i] :
      ( ( ( ( singleton @ ( member_of @ SV124 ) )
          = SV124 )
        | ( ( member_of @ SV124 )
          = SV124 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[476]) ).

thf(615,plain,
    ! [SV125: $i] :
      ( ( ~ ( member @ SV125 @ universal_class )
        | ( ( member_of @ ( singleton @ SV125 ) )
          = SV125 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[477]) ).

thf(616,plain,
    ! [SV126: $i] :
      ( ( ( ( member_of @ SV126 )
          = SV126 )
        | ( member @ ( member_of1 @ SV126 ) @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[478]) ).

thf(617,plain,
    ! [SV127: $i] :
      ( ( ( ( singleton @ ( member_of1 @ SV127 ) )
          = SV127 )
        | ( ( member_of @ SV127 )
          = SV127 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[479]) ).

thf(618,plain,
    ! [SV128: $i] :
      ( ( ( ( singleton @ ( member_of @ SV128 ) )
         != SV128 )
        | ( member @ SV128 @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[480]) ).

thf(619,plain,
    ! [SV129: $i] :
      ( ( ( ( singleton @ ( member_of @ SV129 ) )
         != SV129 )
        | ! [SY409: $i] :
            ( ~ ( member @ SY409 @ SV129 )
            | ( ( member_of @ SV129 )
              = SY409 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[481]) ).

thf(620,plain,
    ! [SV130: $i] :
      ( ( ! [SY410: $i] :
            ( ~ ( member @ SV130 @ SY410 )
            | ( subclass @ ( singleton @ SV130 ) @ SY410 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[482]) ).

thf(621,plain,
    ! [SV131: $i] :
      ( ( ! [SY411: $i] :
            ( ~ ( subclass @ SV131 @ ( singleton @ SY411 ) )
            | ( SV131 = null_class )
            | ( ( singleton @ SY411 )
              = SV131 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[483]) ).

thf(622,plain,
    ! [SV132: $i] :
      ( ( ( member @ ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ SV132 @ null_class ) ) ) @ SV132 ) @ null_class ) @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ SV132 @ null_class ) ) ) @ SV132 ) )
        | ( ( singleton @ ( not_subclass_element @ SV132 @ null_class ) )
          = SV132 )
        | ( SV132 = null_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[484]) ).

thf(623,plain,
    ! [SV133: $i] :
      ( ( ( member @ ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ SV133 @ null_class ) ) ) @ SV133 ) @ null_class ) @ SV133 )
        | ( ( singleton @ ( not_subclass_element @ SV133 @ null_class ) )
          = SV133 )
        | ( SV133 = null_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[485]) ).

thf(624,plain,
    ! [SV134: $i] :
      ( ( ( ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ SV134 @ null_class ) ) ) @ SV134 ) @ null_class )
         != ( not_subclass_element @ SV134 @ null_class ) )
        | ( ( singleton @ ( not_subclass_element @ SV134 @ null_class ) )
          = SV134 )
        | ( SV134 = null_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[486]) ).

thf(625,plain,
    ! [SV135: $i] :
      ( ( ! [SY412: $i] :
            ( ( unordered_pair @ SV135 @ SY412 )
            = ( union @ ( singleton @ SV135 ) @ ( singleton @ SY412 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[487]) ).

thf(626,plain,
    ! [SV136: $i] :
      ( ( ! [SY413: $i] : ( member @ ( ordered_pair @ SV136 @ SY413 ) @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[488]) ).

thf(627,plain,
    $false = $false,
    inference(extcnf_not_pos,[status(thm)],[489]) ).

thf(628,plain,
    ! [SV137: $i,SV1: $i] :
      ( ( ~ ( subclass @ SV1 @ SV137 )
        | ! [SY414: $i] :
            ( ~ ( member @ SY414 @ SV1 )
            | ( member @ SY414 @ SV137 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[491]) ).

thf(629,plain,
    ! [SV138: $i,SV2: $i] :
      ( ( ( member @ ( not_subclass_element @ SV2 @ SV138 ) @ SV2 )
        | ( subclass @ SV2 @ SV138 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[492]) ).

thf(630,plain,
    ! [SV139: $i,SV3: $i] :
      ( ( ~ ( member @ ( not_subclass_element @ SV3 @ SV139 ) @ SV139 )
        | ( subclass @ SV3 @ SV139 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[493]) ).

thf(631,plain,
    ! [SV140: $i,SV5: $i] :
      ( ( ( SV5 != SV140 )
        | ( subclass @ SV5 @ SV140 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[495]) ).

thf(632,plain,
    ! [SV141: $i,SV6: $i] :
      ( ( ( SV6 != SV141 )
        | ( subclass @ SV141 @ SV6 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[496]) ).

thf(633,plain,
    ! [SV142: $i,SV7: $i] :
      ( ( ~ ( subclass @ SV7 @ SV142 )
        | ~ ( subclass @ SV142 @ SV7 )
        | ( SV7 = SV142 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[497]) ).

thf(634,plain,
    ! [SV143: $i,SV8: $i] :
      ( ( ! [SY415: $i] :
            ( ~ ( member @ SV8 @ ( unordered_pair @ SV143 @ SY415 ) )
            | ( SV8 = SV143 )
            | ( SV8 = SY415 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[498]) ).

thf(635,plain,
    ! [SV9: $i] :
      ( ( ( ~ ( member @ SV9 @ universal_class ) )
        = $true )
      | ( ( ! [SY284: $i] : ( member @ SV9 @ ( unordered_pair @ SV9 @ SY284 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[499]) ).

thf(636,plain,
    ! [SV10: $i] :
      ( ( ( ~ ( member @ SV10 @ universal_class ) )
        = $true )
      | ( ( ! [SY285: $i] : ( member @ SV10 @ ( unordered_pair @ SY285 @ SV10 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[500]) ).

thf(637,plain,
    ! [SV144: $i,SV11: $i] :
      ( ( member @ ( unordered_pair @ SV11 @ SV144 ) @ universal_class )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[501]) ).

thf(638,plain,
    ! [SV145: $i,SV13: $i] :
      ( ( ( unordered_pair @ ( singleton @ SV13 ) @ ( unordered_pair @ SV13 @ ( singleton @ SV145 ) ) )
        = ( ordered_pair @ SV13 @ SV145 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[503]) ).

thf(639,plain,
    ! [SV146: $i,SV14: $i] :
      ( ( ! [SY416: $i] :
            ( ! [SY417: $i] :
                ~ ( member @ ( ordered_pair @ SV14 @ SV146 ) @ ( cross_product @ SY416 @ SY417 ) )
            | ( member @ SV14 @ SY416 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[504]) ).

thf(640,plain,
    ! [SV147: $i,SV15: $i] :
      ( ( ! [SY418: $i,SY419: $i] :
            ( ~ ( member @ ( ordered_pair @ SV15 @ SV147 ) @ ( cross_product @ SY418 @ SY419 ) )
            | ( member @ SV147 @ SY419 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[505]) ).

thf(641,plain,
    ! [SV148: $i,SV16: $i] :
      ( ( ~ ( member @ SV16 @ SV148 )
        | ! [SY420: $i,SY421: $i] :
            ( ~ ( member @ SY420 @ SY421 )
            | ( member @ ( ordered_pair @ SV16 @ SY420 ) @ ( cross_product @ SV148 @ SY421 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[506]) ).

thf(642,plain,
    ! [SV17: $i] :
      ( ( ( ! [SY297: $i,SY298: $i] :
              ~ ( member @ SV17 @ ( cross_product @ SY297 @ SY298 ) ) )
        = $true )
      | ( ( ( ordered_pair @ ( first @ SV17 ) @ ( second @ SV17 ) )
          = SV17 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[507]) ).

thf(643,plain,
    ! [SV149: $i,SV18: $i] :
      ( ( ~ ( member @ ( ordered_pair @ SV18 @ SV149 ) @ element_relation )
        | ( member @ SV18 @ SV149 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[508]) ).

thf(644,plain,
    ! [SV150: $i,SV19: $i] :
      ( ( ~ ( member @ ( ordered_pair @ SV19 @ SV150 ) @ ( cross_product @ universal_class @ universal_class ) )
        | ~ ( member @ SV19 @ SV150 )
        | ( member @ ( ordered_pair @ SV19 @ SV150 ) @ element_relation ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[509]) ).

thf(645,plain,
    ! [SV151: $i,SV20: $i] :
      ( ( ! [SY422: $i] :
            ~ ( member @ SV20 @ ( intersection @ SV151 @ SY422 ) )
        | ( member @ SV20 @ SV151 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[510]) ).

thf(646,plain,
    ! [SV152: $i,SV21: $i] :
      ( ( ! [SY423: $i] :
            ( ~ ( member @ SV21 @ ( intersection @ SV152 @ SY423 ) )
            | ( member @ SV21 @ SY423 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[511]) ).

thf(647,plain,
    ! [SV153: $i,SV22: $i] :
      ( ( ~ ( member @ SV22 @ SV153 )
        | ! [SY424: $i] :
            ( ~ ( member @ SV22 @ SY424 )
            | ( member @ SV22 @ ( intersection @ SV153 @ SY424 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[512]) ).

thf(648,plain,
    ! [SV154: $i,SV23: $i] :
      ( ( ~ ( member @ SV23 @ ( complement @ SV154 ) )
        | ~ ( member @ SV23 @ SV154 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[513]) ).

thf(649,plain,
    ! [SV24: $i] :
      ( ( ( ~ ( member @ SV24 @ universal_class ) )
        = $true )
      | ( ( ! [SY308: $i] :
              ( ( member @ SV24 @ ( complement @ SY308 ) )
              | ( member @ SV24 @ SY308 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[514]) ).

thf(650,plain,
    ! [SV155: $i,SV25: $i] :
      ( ( ( complement @ ( intersection @ ( complement @ SV25 ) @ ( complement @ SV155 ) ) )
        = ( union @ SV25 @ SV155 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[515]) ).

thf(651,plain,
    ! [SV156: $i,SV26: $i] :
      ( ( ( intersection @ ( complement @ ( intersection @ SV26 @ SV156 ) ) @ ( complement @ ( intersection @ ( complement @ SV26 ) @ ( complement @ SV156 ) ) ) )
        = ( symmetric_difference @ SV26 @ SV156 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[516]) ).

thf(652,plain,
    ! [SV157: $i,SV27: $i] :
      ( ( ! [SY425: $i] :
            ( ( intersection @ SV27 @ ( cross_product @ SV157 @ SY425 ) )
            = ( restrict @ SV27 @ SV157 @ SY425 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[517]) ).

thf(653,plain,
    ! [SV158: $i,SV28: $i] :
      ( ( ! [SY426: $i] :
            ( ( intersection @ ( cross_product @ SV28 @ SV158 ) @ SY426 )
            = ( restrict @ SY426 @ SV28 @ SV158 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[518]) ).

thf(654,plain,
    ! [SV159: $i,SV29: $i] :
      ( ( ( ( restrict @ SV29 @ ( singleton @ SV159 ) @ universal_class )
         != null_class )
        | ~ ( member @ SV159 @ ( domain_of @ SV29 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[519]) ).

thf(655,plain,
    ! [SV30: $i] :
      ( ( ( ~ ( member @ SV30 @ universal_class ) )
        = $true )
      | ( ( ! [SY316: $i] :
              ( ( ( restrict @ SY316 @ ( singleton @ SV30 ) @ universal_class )
                = null_class )
              | ( member @ SV30 @ ( domain_of @ SY316 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[520]) ).

thf(656,plain,
    ! [SV160: $i,SV32: $i] :
      ( ( ! [SY427: $i,SY428: $i] :
            ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV32 @ SV160 ) @ SY427 ) @ ( rotate @ SY428 ) )
            | ( member @ ( ordered_pair @ ( ordered_pair @ SV160 @ SY427 ) @ SV32 ) @ SY428 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[522]) ).

thf(657,plain,
    ! [SV161: $i,SV33: $i] :
      ( ( ! [SY429: $i,SY430: $i] :
            ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV33 @ SV161 ) @ SY429 ) @ SY430 )
            | ~ ( member @ ( ordered_pair @ ( ordered_pair @ SY429 @ SV33 ) @ SV161 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
            | ( member @ ( ordered_pair @ ( ordered_pair @ SY429 @ SV33 ) @ SV161 ) @ ( rotate @ SY430 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[523]) ).

thf(658,plain,
    ! [SV162: $i,SV35: $i] :
      ( ( ! [SY431: $i,SY432: $i] :
            ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV35 @ SV162 ) @ SY431 ) @ ( flip @ SY432 ) )
            | ( member @ ( ordered_pair @ ( ordered_pair @ SV162 @ SV35 ) @ SY431 ) @ SY432 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[525]) ).

thf(659,plain,
    ! [SV163: $i,SV36: $i] :
      ( ( ! [SY433: $i,SY434: $i] :
            ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV36 @ SV163 ) @ SY433 ) @ SY434 )
            | ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV163 @ SV36 ) @ SY433 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
            | ( member @ ( ordered_pair @ ( ordered_pair @ SV163 @ SV36 ) @ SY433 ) @ ( flip @ SY434 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[526]) ).

thf(660,plain,
    ! [SV164: $i,SV39: $i] :
      ( ( ! [SY435: $i] :
            ( ( first @ ( not_subclass_element @ ( restrict @ SV39 @ SV164 @ ( singleton @ SY435 ) ) @ null_class ) )
            = ( domain @ SV39 @ SV164 @ SY435 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[529]) ).

thf(661,plain,
    ! [SV165: $i,SV40: $i] :
      ( ( ! [SY436: $i] :
            ( ( second @ ( not_subclass_element @ ( restrict @ SV40 @ ( singleton @ SV165 ) @ SY436 ) @ null_class ) )
            = ( range @ SV40 @ SV165 @ SY436 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[530]) ).

thf(662,plain,
    ! [SV166: $i,SV41: $i] :
      ( ( ( range_of @ ( restrict @ SV41 @ SV166 @ universal_class ) )
        = ( image @ SV41 @ SV166 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[531]) ).

thf(663,plain,
    ! [SV167: $i,SV43: $i] :
      ( ( ~ ( member @ ( ordered_pair @ SV43 @ SV167 ) @ successor_relation )
        | ( ( successor @ SV43 )
          = SV167 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[533]) ).

thf(664,plain,
    ! [SV168: $i,SV44: $i] :
      ( ( ( ( successor @ SV44 )
         != SV168 )
        | ~ ( member @ ( ordered_pair @ SV44 @ SV168 ) @ ( cross_product @ universal_class @ universal_class ) )
        | ( member @ ( ordered_pair @ SV44 @ SV168 ) @ successor_relation ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[534]) ).

thf(665,plain,
    ! [SV45: $i] :
      ( ( ( ~ ( inductive @ SV45 ) )
        = $true )
      | ( ( member @ null_class @ SV45 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[535]) ).

thf(666,plain,
    ! [SV46: $i] :
      ( ( ( ~ ( inductive @ SV46 ) )
        = $true )
      | ( ( subclass @ ( image @ successor_relation @ SV46 ) @ SV46 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[536]) ).

thf(667,plain,
    ! [SV47: $i] :
      ( ( ( ~ ( member @ null_class @ SV47 ) )
        = $true )
      | ( ( ~ ( subclass @ ( image @ successor_relation @ SV47 ) @ SV47 )
          | ( inductive @ SV47 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[537]) ).

thf(668,plain,
    ! [SV48: $i] :
      ( ( ( ~ ( inductive @ SV48 ) )
        = $true )
      | ( ( subclass @ omega @ SV48 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[538]) ).

thf(669,plain,
    ! [SV50: $i] :
      ( ( ( ~ ( member @ SV50 @ universal_class ) )
        = $true )
      | ( ( member @ ( sum_class @ SV50 ) @ universal_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[540]) ).

thf(670,plain,
    ! [SV52: $i] :
      ( ( ( ~ ( member @ SV52 @ universal_class ) )
        = $true )
      | ( ( member @ ( power_class @ SV52 ) @ universal_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[542]) ).

thf(671,plain,
    ! [SV169: $i,SV53: $i] :
      ( ( subclass @ ( compose @ SV53 @ SV169 ) @ ( cross_product @ universal_class @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[543]) ).

thf(672,plain,
    ! [SV170: $i,SV54: $i] :
      ( ( ! [SY437: $i,SY438: $i] :
            ( ~ ( member @ ( ordered_pair @ SV54 @ SV170 ) @ ( compose @ SY437 @ SY438 ) )
            | ( member @ SV170 @ ( image @ SY437 @ ( image @ SY438 @ ( singleton @ SV54 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[544]) ).

thf(673,plain,
    ! [SV171: $i,SV55: $i] :
      ( ( ! [SY439: $i,SY440: $i] :
            ( ~ ( member @ SV55 @ ( image @ SV171 @ ( image @ SY439 @ ( singleton @ SY440 ) ) ) )
            | ~ ( member @ ( ordered_pair @ SY440 @ SV55 ) @ ( cross_product @ universal_class @ universal_class ) )
            | ( member @ ( ordered_pair @ SY440 @ SV55 ) @ ( compose @ SV171 @ SY439 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[545]) ).

thf(674,plain,
    ! [SV56: $i] :
      ( ( ( ~ ( single_valued_class @ SV56 ) )
        = $true )
      | ( ( subclass @ ( compose @ SV56 @ ( inverse @ SV56 ) ) @ identity_relation )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[546]) ).

thf(675,plain,
    ! [SV57: $i] :
      ( ( ( ~ ( subclass @ ( compose @ SV57 @ ( inverse @ SV57 ) ) @ identity_relation ) )
        = $true )
      | ( ( single_valued_class @ SV57 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[547]) ).

thf(676,plain,
    ! [SV58: $i] :
      ( ( ( ~ ( function @ SV58 ) )
        = $true )
      | ( ( subclass @ SV58 @ ( cross_product @ universal_class @ universal_class ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[548]) ).

thf(677,plain,
    ! [SV59: $i] :
      ( ( ( ~ ( function @ SV59 ) )
        = $true )
      | ( ( subclass @ ( compose @ SV59 @ ( inverse @ SV59 ) ) @ identity_relation )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[549]) ).

thf(678,plain,
    ! [SV60: $i] :
      ( ( ( ~ ( subclass @ SV60 @ ( cross_product @ universal_class @ universal_class ) ) )
        = $true )
      | ( ( ~ ( subclass @ ( compose @ SV60 @ ( inverse @ SV60 ) ) @ identity_relation )
          | ( function @ SV60 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[550]) ).

thf(679,plain,
    ! [SV61: $i] :
      ( ( ( ~ ( function @ SV61 ) )
        = $true )
      | ( ( ! [SY343: $i] :
              ( ~ ( member @ SY343 @ universal_class )
              | ( member @ ( image @ SV61 @ SY343 ) @ universal_class ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[551]) ).

thf(680,plain,
    ! [SV62: $i] :
      ( ( ( SV62 = null_class )
        = $true )
      | ( ( member @ ( regular @ SV62 ) @ SV62 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[552]) ).

thf(681,plain,
    ! [SV63: $i] :
      ( ( ( SV63 = null_class )
        = $true )
      | ( ( ( intersection @ SV63 @ ( regular @ SV63 ) )
          = null_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[553]) ).

thf(682,plain,
    ! [SV172: $i,SV64: $i] :
      ( ( ( sum_class @ ( image @ SV64 @ ( singleton @ SV172 ) ) )
        = ( apply @ SV64 @ SV172 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[554]) ).

thf(683,plain,
    ! [SV65: $i] :
      ( ( ( ~ ( member @ SV65 @ universal_class ) )
        = $true )
      | ( ( ( SV65 = null_class )
          | ( member @ ( apply @ choice @ SV65 ) @ SV65 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[555]) ).

thf(684,plain,
    ! [SV66: $i] :
      ( ( ( ~ ( one_to_one @ SV66 ) )
        = $true )
      | ( ( function @ SV66 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[556]) ).

thf(685,plain,
    ! [SV67: $i] :
      ( ( ( ~ ( one_to_one @ SV67 ) )
        = $true )
      | ( ( function @ ( inverse @ SV67 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[557]) ).

thf(686,plain,
    ! [SV68: $i] :
      ( ( ( ~ ( function @ ( inverse @ SV68 ) ) )
        = $true )
      | ( ( ~ ( function @ SV68 )
          | ( one_to_one @ SV68 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[558]) ).

thf(687,plain,
    ! [SV71: $i] :
      ( ( ( ~ ( operation @ SV71 ) )
        = $true )
      | ( ( function @ SV71 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[561]) ).

thf(688,plain,
    ! [SV72: $i] :
      ( ( ( ~ ( operation @ SV72 ) )
        = $true )
      | ( ( ( cross_product @ ( domain_of @ ( domain_of @ SV72 ) ) @ ( domain_of @ ( domain_of @ SV72 ) ) )
          = ( domain_of @ SV72 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[562]) ).

thf(689,plain,
    ! [SV73: $i] :
      ( ( ( ~ ( operation @ SV73 ) )
        = $true )
      | ( ( subclass @ ( range_of @ SV73 ) @ ( domain_of @ ( domain_of @ SV73 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[563]) ).

thf(690,plain,
    ! [SV74: $i] :
      ( ( ( ~ ( function @ SV74 ) )
        = $true )
      | ( ( ( ( cross_product @ ( domain_of @ ( domain_of @ SV74 ) ) @ ( domain_of @ ( domain_of @ SV74 ) ) )
           != ( domain_of @ SV74 ) )
          | ~ ( subclass @ ( range_of @ SV74 ) @ ( domain_of @ ( domain_of @ SV74 ) ) )
          | ( operation @ SV74 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[564]) ).

thf(691,plain,
    ! [SV75: $i] :
      ( ( ( ! [SY345: $i,SY346: $i] :
              ~ ( compatible @ SV75 @ SY345 @ SY346 ) )
        = $true )
      | ( ( function @ SV75 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[565]) ).

thf(692,plain,
    ! [SV173: $i,SV76: $i] :
      ( ( ! [SY441: $i] :
            ~ ( compatible @ SV76 @ SV173 @ SY441 )
        | ( ( domain_of @ ( domain_of @ SV173 ) )
          = ( domain_of @ SV76 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[566]) ).

thf(693,plain,
    ! [SV174: $i,SV77: $i] :
      ( ( ! [SY442: $i] :
            ( ~ ( compatible @ SV77 @ SV174 @ SY442 )
            | ( subclass @ ( range_of @ SV77 ) @ ( domain_of @ ( domain_of @ SY442 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[567]) ).

thf(694,plain,
    ! [SV78: $i] :
      ( ( ( ~ ( function @ SV78 ) )
        = $true )
      | ( ( ! [SY351: $i] :
              ( ( ( domain_of @ ( domain_of @ SY351 ) )
               != ( domain_of @ SV78 ) )
              | ! [SY352: $i] :
                  ( ~ ( subclass @ ( range_of @ SV78 ) @ ( domain_of @ ( domain_of @ SY352 ) ) )
                  | ( compatible @ SV78 @ SY351 @ SY352 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[568]) ).

thf(695,plain,
    ! [SV175: $i,SV79: $i] :
      ( ( ! [SY443: $i] :
            ~ ( homomorphism @ SV79 @ SV175 @ SY443 )
        | ( operation @ SV175 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[569]) ).

thf(696,plain,
    ! [SV176: $i,SV80: $i] :
      ( ( ! [SY444: $i] :
            ( ~ ( homomorphism @ SV80 @ SV176 @ SY444 )
            | ( operation @ SY444 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[570]) ).

thf(697,plain,
    ! [SV177: $i,SV81: $i] :
      ( ( ! [SY445: $i] :
            ( ~ ( homomorphism @ SV81 @ SV177 @ SY445 )
            | ( compatible @ SV81 @ SV177 @ SY445 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[571]) ).

thf(698,plain,
    ! [SV178: $i,SV82: $i] :
      ( ( ! [SY446: $i] :
            ( ~ ( homomorphism @ SV82 @ SV178 @ SY446 )
            | ! [SY447: $i,SY448: $i] :
                ( ~ ( member @ ( ordered_pair @ SY447 @ SY448 ) @ ( domain_of @ SV178 ) )
                | ( ( apply @ SY446 @ ( ordered_pair @ ( apply @ SV82 @ SY447 ) @ ( apply @ SV82 @ SY448 ) ) )
                  = ( apply @ SV82 @ ( apply @ SV178 @ ( ordered_pair @ SY447 @ SY448 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[572]) ).

thf(699,plain,
    ! [SV83: $i] :
      ( ( ( ~ ( operation @ SV83 ) )
        = $true )
      | ( ( ! [SY363: $i] :
              ( ~ ( operation @ SY363 )
              | ! [SY364: $i] :
                  ( ~ ( compatible @ SY364 @ SV83 @ SY363 )
                  | ( homomorphism @ SY364 @ SV83 @ SY363 )
                  | ( member @ ( ordered_pair @ ( not_homomorphism1 @ SY364 @ SV83 @ SY363 ) @ ( not_homomorphism2 @ SY364 @ SV83 @ SY363 ) ) @ ( domain_of @ SV83 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[573]) ).

thf(700,plain,
    ! [SV84: $i] :
      ( ( ( ~ ( operation @ SV84 ) )
        = $true )
      | ( ( ! [SY365: $i] :
              ( ~ ( operation @ SY365 )
              | ! [SY366: $i] :
                  ( ~ ( compatible @ SY366 @ SV84 @ SY365 )
                  | ( ( apply @ SY365 @ ( ordered_pair @ ( apply @ SY366 @ ( not_homomorphism1 @ SY366 @ SV84 @ SY365 ) ) @ ( apply @ SY366 @ ( not_homomorphism2 @ SY366 @ SV84 @ SY365 ) ) ) )
                   != ( apply @ SY366 @ ( apply @ SV84 @ ( ordered_pair @ ( not_homomorphism1 @ SY366 @ SV84 @ SY365 ) @ ( not_homomorphism2 @ SY366 @ SV84 @ SY365 ) ) ) ) )
                  | ( homomorphism @ SY366 @ SV84 @ SY365 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[574]) ).

thf(701,plain,
    ! [SV179: $i,SV85: $i] :
      ( ( ! [SY449: $i,SY450: $i] :
            ~ ( member @ ( ordered_pair @ SV85 @ SV179 ) @ ( cross_product @ SY449 @ SY450 ) )
        | ( member @ SV85 @ ( unordered_pair @ SV85 @ SV179 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[575]) ).

thf(702,plain,
    ! [SV180: $i,SV86: $i] :
      ( ( ! [SY451: $i,SY452: $i] :
            ~ ( member @ ( ordered_pair @ SV86 @ SV180 ) @ ( cross_product @ SY451 @ SY452 ) )
        | ( member @ SV180 @ ( unordered_pair @ SV86 @ SV180 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[576]) ).

thf(703,plain,
    ! [SV181: $i,SV87: $i] :
      ( ( ! [SY453: $i,SY454: $i] :
            ~ ( member @ ( ordered_pair @ SV87 @ SV181 ) @ ( cross_product @ SY453 @ SY454 ) )
        | ( member @ SV87 @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[577]) ).

thf(704,plain,
    ! [SV182: $i,SV88: $i] :
      ( ( ! [SY455: $i,SY456: $i] :
            ~ ( member @ ( ordered_pair @ SV88 @ SV182 ) @ ( cross_product @ SY455 @ SY456 ) )
        | ( member @ SV182 @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[578]) ).

thf(705,plain,
    ! [SV183: $i,SV90: $i] :
      ( ( ~ ( subclass @ SV90 @ SV183 )
        | ! [SY457: $i] :
            ( ~ ( subclass @ SV183 @ SY457 )
            | ( subclass @ SV90 @ SY457 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[580]) ).

thf(706,plain,
    ! [SV184: $i,SV91: $i] :
      ( ( ( SV91 = SV184 )
        | ( member @ ( not_subclass_element @ SV91 @ SV184 ) @ SV91 )
        | ( member @ ( not_subclass_element @ SV184 @ SV91 ) @ SV184 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[581]) ).

thf(707,plain,
    ! [SV185: $i,SV92: $i] :
      ( ( ~ ( member @ ( not_subclass_element @ SV92 @ SV185 ) @ SV185 )
        | ( SV92 = SV185 )
        | ( member @ ( not_subclass_element @ SV185 @ SV92 ) @ SV185 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[582]) ).

thf(708,plain,
    ! [SV186: $i,SV93: $i] :
      ( ( ~ ( member @ ( not_subclass_element @ SV93 @ SV186 ) @ SV186 )
        | ( SV186 = SV93 )
        | ( member @ ( not_subclass_element @ SV186 @ SV93 ) @ SV186 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[583]) ).

thf(709,plain,
    ! [SV187: $i,SV94: $i] :
      ( ( ~ ( member @ ( not_subclass_element @ SV94 @ SV187 ) @ SV187 )
        | ~ ( member @ ( not_subclass_element @ SV187 @ SV94 ) @ SV94 )
        | ( SV94 = SV187 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[584]) ).

thf(710,plain,
    ! [SV188: $i,SV95: $i] :
      ( ( ~ ( member @ SV95 @ ( intersection @ ( complement @ SV188 ) @ SV188 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[585]) ).

thf(711,plain,
    ! [SV96: $i] :
      ( ( member @ SV96 @ null_class )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[586]) ).

thf(712,plain,
    ! [SV98: $i] :
      ( ( ( ~ ( subclass @ SV98 @ null_class ) )
        = $true )
      | ( ( SV98 = null_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[588]) ).

thf(713,plain,
    ! [SV99: $i] :
      ( ( ( SV99 = null_class )
        = $true )
      | ( ( member @ ( not_subclass_element @ SV99 @ null_class ) @ SV99 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[589]) ).

thf(714,plain,
    ! [SV189: $i,SV100: $i] :
      ( ( ( unordered_pair @ SV100 @ SV189 )
        = ( unordered_pair @ SV189 @ SV100 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[590]) ).

thf(715,plain,
    ! [SV190: $i,SV101: $i] :
      ( ( subclass @ ( singleton @ SV101 ) @ ( unordered_pair @ SV101 @ SV190 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[591]) ).

thf(716,plain,
    ! [SV191: $i,SV102: $i] :
      ( ( subclass @ ( singleton @ SV102 ) @ ( unordered_pair @ SV191 @ SV102 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[592]) ).

thf(717,plain,
    ! [SV103: $i] :
      ( ( ( ! [SY389: $i] :
              ( ( unordered_pair @ SY389 @ SV103 )
              = ( singleton @ SY389 ) ) )
        = $true )
      | ( ( member @ SV103 @ universal_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[593]) ).

thf(718,plain,
    ! [SV104: $i] :
      ( ( ( ! [SY390: $i] :
              ( ( unordered_pair @ SV104 @ SY390 )
              = ( singleton @ SY390 ) ) )
        = $true )
      | ( ( member @ SV104 @ universal_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[594]) ).

thf(719,plain,
    ! [SV192: $i,SV105: $i] :
      ( ( ( ( unordered_pair @ SV105 @ SV192 )
          = null_class )
        | ( member @ SV105 @ universal_class )
        | ( member @ SV192 @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[595]) ).

thf(720,plain,
    ! [SV193: $i,SV106: $i] :
      ( ( ! [SY458: $i] :
            ( ( ( unordered_pair @ SV106 @ SV193 )
             != ( unordered_pair @ SV106 @ SY458 ) )
            | ~ ( member @ ( ordered_pair @ SV193 @ SY458 ) @ ( cross_product @ universal_class @ universal_class ) )
            | ( SV193 = SY458 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[596]) ).

thf(721,plain,
    ! [SV194: $i,SV107: $i] :
      ( ( ! [SY459: $i] :
            ( ( ( unordered_pair @ SV107 @ SV194 )
             != ( unordered_pair @ SY459 @ SV194 ) )
            | ~ ( member @ ( ordered_pair @ SV107 @ SY459 ) @ ( cross_product @ universal_class @ universal_class ) )
            | ( SV107 = SY459 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[597]) ).

thf(722,plain,
    ! [SV108: $i] :
      ( ( ( ~ ( member @ SV108 @ universal_class ) )
        = $true )
      | ( ( ! [SY396: $i] :
              ( ( unordered_pair @ SV108 @ SY396 )
             != null_class ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[598]) ).

thf(723,plain,
    ! [SV109: $i] :
      ( ( ( ~ ( member @ SV109 @ universal_class ) )
        = $true )
      | ( ( ! [SY397: $i] :
              ( ( unordered_pair @ SY397 @ SV109 )
             != null_class ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[599]) ).

thf(724,plain,
    ! [SV195: $i,SV110: $i] :
      ( ( ! [SY460: $i,SY461: $i] :
            ~ ( member @ ( ordered_pair @ SV110 @ SV195 ) @ ( cross_product @ SY460 @ SY461 ) )
        | ( ( unordered_pair @ SV110 @ SV195 )
         != null_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[600]) ).

thf(725,plain,
    ! [SV196: $i,SV111: $i] :
      ( ( ~ ( member @ SV111 @ SV196 )
        | ! [SY462: $i] :
            ( ~ ( member @ SY462 @ SV196 )
            | ( subclass @ ( unordered_pair @ SV111 @ SY462 ) @ SV196 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[601]) ).

thf(726,plain,
    ! [SV197: $i,SV113: $i] :
      ( ( member @ ( singleton @ SV113 ) @ ( unordered_pair @ SV197 @ ( singleton @ SV113 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[603]) ).

thf(727,plain,
    ! [SV114: $i] :
      ( ( ( ~ ( member @ SV114 @ universal_class ) )
        = $true )
      | ( ( member @ SV114 @ ( singleton @ SV114 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[604]) ).

thf(728,plain,
    ! [SV115: $i] :
      ( ( ( ~ ( member @ SV115 @ universal_class ) )
        = $true )
      | ( ( ( singleton @ SV115 )
         != null_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[605]) ).

thf(729,plain,
    ! [SV198: $i,SV116: $i] :
      ( ( ~ ( member @ SV116 @ ( singleton @ SV198 ) )
        | ( SV116 = SV198 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[606]) ).

thf(730,plain,
    ! [SV117: $i] :
      ( ( ( ( singleton @ SV117 )
          = null_class )
        = $true )
      | ( ( member @ SV117 @ universal_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[607]) ).

thf(731,plain,
    ! [SV199: $i,SV118: $i] :
      ( ( ( ( singleton @ SV118 )
         != ( singleton @ SV199 ) )
        | ~ ( member @ SV118 @ universal_class )
        | ( SV118 = SV199 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[608]) ).

thf(732,plain,
    ! [SV200: $i,SV119: $i] :
      ( ( ( ( singleton @ SV119 )
         != ( singleton @ SV200 ) )
        | ~ ( member @ SV200 @ universal_class )
        | ( SV119 = SV200 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[609]) ).

thf(733,plain,
    ! [SV201: $i,SV120: $i] :
      ( ( ! [SY463: $i] :
            ( ( ( unordered_pair @ SV120 @ SV201 )
             != ( singleton @ SY463 ) )
            | ~ ( member @ SY463 @ universal_class )
            | ( SY463 = SV120 )
            | ( SY463 = SV201 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[610]) ).

thf(734,plain,
    ! [SV121: $i] :
      ( ( ( ~ ( member @ SV121 @ universal_class ) )
        = $true )
      | ( ( member @ ( member_of @ ( singleton @ SV121 ) ) @ universal_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[611]) ).

thf(735,plain,
    ! [SV122: $i] :
      ( ( ( ~ ( member @ SV122 @ universal_class ) )
        = $true )
      | ( ( ( singleton @ ( member_of @ ( singleton @ SV122 ) ) )
          = ( singleton @ SV122 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[612]) ).

thf(736,plain,
    ! [SV123: $i] :
      ( ( ( ( member_of @ SV123 )
          = SV123 )
        = $true )
      | ( ( member @ ( member_of @ SV123 ) @ universal_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[613]) ).

thf(737,plain,
    ! [SV124: $i] :
      ( ( ( ( singleton @ ( member_of @ SV124 ) )
          = SV124 )
        = $true )
      | ( ( ( member_of @ SV124 )
          = SV124 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[614]) ).

thf(738,plain,
    ! [SV125: $i] :
      ( ( ( ~ ( member @ SV125 @ universal_class ) )
        = $true )
      | ( ( ( member_of @ ( singleton @ SV125 ) )
          = SV125 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[615]) ).

thf(739,plain,
    ! [SV126: $i] :
      ( ( ( ( member_of @ SV126 )
          = SV126 )
        = $true )
      | ( ( member @ ( member_of1 @ SV126 ) @ universal_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[616]) ).

thf(740,plain,
    ! [SV127: $i] :
      ( ( ( ( singleton @ ( member_of1 @ SV127 ) )
          = SV127 )
        = $true )
      | ( ( ( member_of @ SV127 )
          = SV127 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[617]) ).

thf(741,plain,
    ! [SV128: $i] :
      ( ( ( ( singleton @ ( member_of @ SV128 ) )
         != SV128 )
        = $true )
      | ( ( member @ SV128 @ universal_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[618]) ).

thf(742,plain,
    ! [SV129: $i] :
      ( ( ( ( singleton @ ( member_of @ SV129 ) )
         != SV129 )
        = $true )
      | ( ( ! [SY409: $i] :
              ( ~ ( member @ SY409 @ SV129 )
              | ( ( member_of @ SV129 )
                = SY409 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[619]) ).

thf(743,plain,
    ! [SV202: $i,SV130: $i] :
      ( ( ~ ( member @ SV130 @ SV202 )
        | ( subclass @ ( singleton @ SV130 ) @ SV202 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[620]) ).

thf(744,plain,
    ! [SV203: $i,SV131: $i] :
      ( ( ~ ( subclass @ SV131 @ ( singleton @ SV203 ) )
        | ( SV131 = null_class )
        | ( ( singleton @ SV203 )
          = SV131 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[621]) ).

thf(745,plain,
    ! [SV132: $i] :
      ( ( ( member @ ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ SV132 @ null_class ) ) ) @ SV132 ) @ null_class ) @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ SV132 @ null_class ) ) ) @ SV132 ) )
        = $true )
      | ( ( ( ( singleton @ ( not_subclass_element @ SV132 @ null_class ) )
            = SV132 )
          | ( SV132 = null_class ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[622]) ).

thf(746,plain,
    ! [SV133: $i] :
      ( ( ( member @ ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ SV133 @ null_class ) ) ) @ SV133 ) @ null_class ) @ SV133 )
        = $true )
      | ( ( ( ( singleton @ ( not_subclass_element @ SV133 @ null_class ) )
            = SV133 )
          | ( SV133 = null_class ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[623]) ).

thf(747,plain,
    ! [SV134: $i] :
      ( ( ( ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ SV134 @ null_class ) ) ) @ SV134 ) @ null_class )
         != ( not_subclass_element @ SV134 @ null_class ) )
        = $true )
      | ( ( ( ( singleton @ ( not_subclass_element @ SV134 @ null_class ) )
            = SV134 )
          | ( SV134 = null_class ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[624]) ).

thf(748,plain,
    ! [SV204: $i,SV135: $i] :
      ( ( ( unordered_pair @ SV135 @ SV204 )
        = ( union @ ( singleton @ SV135 ) @ ( singleton @ SV204 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[625]) ).

thf(749,plain,
    ! [SV205: $i,SV136: $i] :
      ( ( member @ ( ordered_pair @ SV136 @ SV205 ) @ universal_class )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[626]) ).

thf(750,plain,
    ! [SV137: $i,SV1: $i] :
      ( ( ( ~ ( subclass @ SV1 @ SV137 ) )
        = $true )
      | ( ( ! [SY414: $i] :
              ( ~ ( member @ SY414 @ SV1 )
              | ( member @ SY414 @ SV137 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[628]) ).

thf(751,plain,
    ! [SV138: $i,SV2: $i] :
      ( ( ( member @ ( not_subclass_element @ SV2 @ SV138 ) @ SV2 )
        = $true )
      | ( ( subclass @ SV2 @ SV138 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[629]) ).

thf(752,plain,
    ! [SV139: $i,SV3: $i] :
      ( ( ( ~ ( member @ ( not_subclass_element @ SV3 @ SV139 ) @ SV139 ) )
        = $true )
      | ( ( subclass @ SV3 @ SV139 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[630]) ).

thf(753,plain,
    ! [SV140: $i,SV5: $i] :
      ( ( ( SV5 != SV140 )
        = $true )
      | ( ( subclass @ SV5 @ SV140 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[631]) ).

thf(754,plain,
    ! [SV141: $i,SV6: $i] :
      ( ( ( SV6 != SV141 )
        = $true )
      | ( ( subclass @ SV141 @ SV6 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[632]) ).

thf(755,plain,
    ! [SV142: $i,SV7: $i] :
      ( ( ( ~ ( subclass @ SV7 @ SV142 ) )
        = $true )
      | ( ( ~ ( subclass @ SV142 @ SV7 )
          | ( SV7 = SV142 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[633]) ).

thf(756,plain,
    ! [SV206: $i,SV143: $i,SV8: $i] :
      ( ( ~ ( member @ SV8 @ ( unordered_pair @ SV143 @ SV206 ) )
        | ( SV8 = SV143 )
        | ( SV8 = SV206 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[634]) ).

thf(757,plain,
    ! [SV9: $i] :
      ( ( ( member @ SV9 @ universal_class )
        = $false )
      | ( ( ! [SY284: $i] : ( member @ SV9 @ ( unordered_pair @ SV9 @ SY284 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[635]) ).

thf(758,plain,
    ! [SV10: $i] :
      ( ( ( member @ SV10 @ universal_class )
        = $false )
      | ( ( ! [SY285: $i] : ( member @ SV10 @ ( unordered_pair @ SY285 @ SV10 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[636]) ).

thf(759,plain,
    ! [SV207: $i,SV146: $i,SV14: $i] :
      ( ( ! [SY464: $i] :
            ~ ( member @ ( ordered_pair @ SV14 @ SV146 ) @ ( cross_product @ SV207 @ SY464 ) )
        | ( member @ SV14 @ SV207 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[639]) ).

thf(760,plain,
    ! [SV208: $i,SV147: $i,SV15: $i] :
      ( ( ! [SY465: $i] :
            ( ~ ( member @ ( ordered_pair @ SV15 @ SV147 ) @ ( cross_product @ SV208 @ SY465 ) )
            | ( member @ SV147 @ SY465 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[640]) ).

thf(761,plain,
    ! [SV148: $i,SV16: $i] :
      ( ( ( ~ ( member @ SV16 @ SV148 ) )
        = $true )
      | ( ( ! [SY420: $i,SY421: $i] :
              ( ~ ( member @ SY420 @ SY421 )
              | ( member @ ( ordered_pair @ SV16 @ SY420 ) @ ( cross_product @ SV148 @ SY421 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[641]) ).

thf(762,plain,
    ! [SV209: $i,SV17: $i] :
      ( ( ( ! [SY466: $i] :
              ~ ( member @ SV17 @ ( cross_product @ SV209 @ SY466 ) ) )
        = $true )
      | ( ( ( ordered_pair @ ( first @ SV17 ) @ ( second @ SV17 ) )
          = SV17 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[642]) ).

thf(763,plain,
    ! [SV149: $i,SV18: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV18 @ SV149 ) @ element_relation ) )
        = $true )
      | ( ( member @ SV18 @ SV149 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[643]) ).

thf(764,plain,
    ! [SV150: $i,SV19: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV19 @ SV150 ) @ ( cross_product @ universal_class @ universal_class ) ) )
        = $true )
      | ( ( ~ ( member @ SV19 @ SV150 )
          | ( member @ ( ordered_pair @ SV19 @ SV150 ) @ element_relation ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[644]) ).

thf(765,plain,
    ! [SV151: $i,SV20: $i] :
      ( ( ( ! [SY422: $i] :
              ~ ( member @ SV20 @ ( intersection @ SV151 @ SY422 ) ) )
        = $true )
      | ( ( member @ SV20 @ SV151 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[645]) ).

thf(766,plain,
    ! [SV210: $i,SV152: $i,SV21: $i] :
      ( ( ~ ( member @ SV21 @ ( intersection @ SV152 @ SV210 ) )
        | ( member @ SV21 @ SV210 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[646]) ).

thf(767,plain,
    ! [SV153: $i,SV22: $i] :
      ( ( ( ~ ( member @ SV22 @ SV153 ) )
        = $true )
      | ( ( ! [SY424: $i] :
              ( ~ ( member @ SV22 @ SY424 )
              | ( member @ SV22 @ ( intersection @ SV153 @ SY424 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[647]) ).

thf(768,plain,
    ! [SV154: $i,SV23: $i] :
      ( ( ( ~ ( member @ SV23 @ ( complement @ SV154 ) ) )
        = $true )
      | ( ( ~ ( member @ SV23 @ SV154 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[648]) ).

thf(769,plain,
    ! [SV24: $i] :
      ( ( ( member @ SV24 @ universal_class )
        = $false )
      | ( ( ! [SY308: $i] :
              ( ( member @ SV24 @ ( complement @ SY308 ) )
              | ( member @ SV24 @ SY308 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[649]) ).

thf(770,plain,
    ! [SV211: $i,SV157: $i,SV27: $i] :
      ( ( ( intersection @ SV27 @ ( cross_product @ SV157 @ SV211 ) )
        = ( restrict @ SV27 @ SV157 @ SV211 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[652]) ).

thf(771,plain,
    ! [SV212: $i,SV158: $i,SV28: $i] :
      ( ( ( intersection @ ( cross_product @ SV28 @ SV158 ) @ SV212 )
        = ( restrict @ SV212 @ SV28 @ SV158 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[653]) ).

thf(772,plain,
    ! [SV159: $i,SV29: $i] :
      ( ( ( ( restrict @ SV29 @ ( singleton @ SV159 ) @ universal_class )
         != null_class )
        = $true )
      | ( ( ~ ( member @ SV159 @ ( domain_of @ SV29 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[654]) ).

thf(773,plain,
    ! [SV30: $i] :
      ( ( ( member @ SV30 @ universal_class )
        = $false )
      | ( ( ! [SY316: $i] :
              ( ( ( restrict @ SY316 @ ( singleton @ SV30 ) @ universal_class )
                = null_class )
              | ( member @ SV30 @ ( domain_of @ SY316 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[655]) ).

thf(774,plain,
    ! [SV213: $i,SV160: $i,SV32: $i] :
      ( ( ! [SY467: $i] :
            ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV32 @ SV160 ) @ SV213 ) @ ( rotate @ SY467 ) )
            | ( member @ ( ordered_pair @ ( ordered_pair @ SV160 @ SV213 ) @ SV32 ) @ SY467 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[656]) ).

thf(775,plain,
    ! [SV214: $i,SV161: $i,SV33: $i] :
      ( ( ! [SY468: $i] :
            ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV33 @ SV161 ) @ SV214 ) @ SY468 )
            | ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV214 @ SV33 ) @ SV161 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
            | ( member @ ( ordered_pair @ ( ordered_pair @ SV214 @ SV33 ) @ SV161 ) @ ( rotate @ SY468 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[657]) ).

thf(776,plain,
    ! [SV215: $i,SV162: $i,SV35: $i] :
      ( ( ! [SY469: $i] :
            ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV35 @ SV162 ) @ SV215 ) @ ( flip @ SY469 ) )
            | ( member @ ( ordered_pair @ ( ordered_pair @ SV162 @ SV35 ) @ SV215 ) @ SY469 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[658]) ).

thf(777,plain,
    ! [SV216: $i,SV163: $i,SV36: $i] :
      ( ( ! [SY470: $i] :
            ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV36 @ SV163 ) @ SV216 ) @ SY470 )
            | ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV163 @ SV36 ) @ SV216 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
            | ( member @ ( ordered_pair @ ( ordered_pair @ SV163 @ SV36 ) @ SV216 ) @ ( flip @ SY470 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[659]) ).

thf(778,plain,
    ! [SV217: $i,SV164: $i,SV39: $i] :
      ( ( ( first @ ( not_subclass_element @ ( restrict @ SV39 @ SV164 @ ( singleton @ SV217 ) ) @ null_class ) )
        = ( domain @ SV39 @ SV164 @ SV217 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[660]) ).

thf(779,plain,
    ! [SV218: $i,SV165: $i,SV40: $i] :
      ( ( ( second @ ( not_subclass_element @ ( restrict @ SV40 @ ( singleton @ SV165 ) @ SV218 ) @ null_class ) )
        = ( range @ SV40 @ SV165 @ SV218 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[661]) ).

thf(780,plain,
    ! [SV167: $i,SV43: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV43 @ SV167 ) @ successor_relation ) )
        = $true )
      | ( ( ( successor @ SV43 )
          = SV167 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[663]) ).

thf(781,plain,
    ! [SV168: $i,SV44: $i] :
      ( ( ( ( successor @ SV44 )
         != SV168 )
        = $true )
      | ( ( ~ ( member @ ( ordered_pair @ SV44 @ SV168 ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( member @ ( ordered_pair @ SV44 @ SV168 ) @ successor_relation ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[664]) ).

thf(782,plain,
    ! [SV45: $i] :
      ( ( ( inductive @ SV45 )
        = $false )
      | ( ( member @ null_class @ SV45 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[665]) ).

thf(783,plain,
    ! [SV46: $i] :
      ( ( ( inductive @ SV46 )
        = $false )
      | ( ( subclass @ ( image @ successor_relation @ SV46 ) @ SV46 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[666]) ).

thf(784,plain,
    ! [SV47: $i] :
      ( ( ( member @ null_class @ SV47 )
        = $false )
      | ( ( ~ ( subclass @ ( image @ successor_relation @ SV47 ) @ SV47 )
          | ( inductive @ SV47 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[667]) ).

thf(785,plain,
    ! [SV48: $i] :
      ( ( ( inductive @ SV48 )
        = $false )
      | ( ( subclass @ omega @ SV48 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[668]) ).

thf(786,plain,
    ! [SV50: $i] :
      ( ( ( member @ SV50 @ universal_class )
        = $false )
      | ( ( member @ ( sum_class @ SV50 ) @ universal_class )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[669]) ).

thf(787,plain,
    ! [SV52: $i] :
      ( ( ( member @ SV52 @ universal_class )
        = $false )
      | ( ( member @ ( power_class @ SV52 ) @ universal_class )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[670]) ).

thf(788,plain,
    ! [SV219: $i,SV170: $i,SV54: $i] :
      ( ( ! [SY471: $i] :
            ( ~ ( member @ ( ordered_pair @ SV54 @ SV170 ) @ ( compose @ SV219 @ SY471 ) )
            | ( member @ SV170 @ ( image @ SV219 @ ( image @ SY471 @ ( singleton @ SV54 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[672]) ).

thf(789,plain,
    ! [SV220: $i,SV171: $i,SV55: $i] :
      ( ( ! [SY472: $i] :
            ( ~ ( member @ SV55 @ ( image @ SV171 @ ( image @ SV220 @ ( singleton @ SY472 ) ) ) )
            | ~ ( member @ ( ordered_pair @ SY472 @ SV55 ) @ ( cross_product @ universal_class @ universal_class ) )
            | ( member @ ( ordered_pair @ SY472 @ SV55 ) @ ( compose @ SV171 @ SV220 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[673]) ).

thf(790,plain,
    ! [SV56: $i] :
      ( ( ( single_valued_class @ SV56 )
        = $false )
      | ( ( subclass @ ( compose @ SV56 @ ( inverse @ SV56 ) ) @ identity_relation )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[674]) ).

thf(791,plain,
    ! [SV57: $i] :
      ( ( ( subclass @ ( compose @ SV57 @ ( inverse @ SV57 ) ) @ identity_relation )
        = $false )
      | ( ( single_valued_class @ SV57 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[675]) ).

thf(792,plain,
    ! [SV58: $i] :
      ( ( ( function @ SV58 )
        = $false )
      | ( ( subclass @ SV58 @ ( cross_product @ universal_class @ universal_class ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[676]) ).

thf(793,plain,
    ! [SV59: $i] :
      ( ( ( function @ SV59 )
        = $false )
      | ( ( subclass @ ( compose @ SV59 @ ( inverse @ SV59 ) ) @ identity_relation )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[677]) ).

thf(794,plain,
    ! [SV60: $i] :
      ( ( ( subclass @ SV60 @ ( cross_product @ universal_class @ universal_class ) )
        = $false )
      | ( ( ~ ( subclass @ ( compose @ SV60 @ ( inverse @ SV60 ) ) @ identity_relation )
          | ( function @ SV60 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[678]) ).

thf(795,plain,
    ! [SV61: $i] :
      ( ( ( function @ SV61 )
        = $false )
      | ( ( ! [SY343: $i] :
              ( ~ ( member @ SY343 @ universal_class )
              | ( member @ ( image @ SV61 @ SY343 ) @ universal_class ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[679]) ).

thf(796,plain,
    ! [SV65: $i] :
      ( ( ( member @ SV65 @ universal_class )
        = $false )
      | ( ( ( SV65 = null_class )
          | ( member @ ( apply @ choice @ SV65 ) @ SV65 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[683]) ).

thf(797,plain,
    ! [SV66: $i] :
      ( ( ( one_to_one @ SV66 )
        = $false )
      | ( ( function @ SV66 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[684]) ).

thf(798,plain,
    ! [SV67: $i] :
      ( ( ( one_to_one @ SV67 )
        = $false )
      | ( ( function @ ( inverse @ SV67 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[685]) ).

thf(799,plain,
    ! [SV68: $i] :
      ( ( ( function @ ( inverse @ SV68 ) )
        = $false )
      | ( ( ~ ( function @ SV68 )
          | ( one_to_one @ SV68 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[686]) ).

thf(800,plain,
    ! [SV71: $i] :
      ( ( ( operation @ SV71 )
        = $false )
      | ( ( function @ SV71 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[687]) ).

thf(801,plain,
    ! [SV72: $i] :
      ( ( ( operation @ SV72 )
        = $false )
      | ( ( ( cross_product @ ( domain_of @ ( domain_of @ SV72 ) ) @ ( domain_of @ ( domain_of @ SV72 ) ) )
          = ( domain_of @ SV72 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[688]) ).

thf(802,plain,
    ! [SV73: $i] :
      ( ( ( operation @ SV73 )
        = $false )
      | ( ( subclass @ ( range_of @ SV73 ) @ ( domain_of @ ( domain_of @ SV73 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[689]) ).

thf(803,plain,
    ! [SV74: $i] :
      ( ( ( function @ SV74 )
        = $false )
      | ( ( ( ( cross_product @ ( domain_of @ ( domain_of @ SV74 ) ) @ ( domain_of @ ( domain_of @ SV74 ) ) )
           != ( domain_of @ SV74 ) )
          | ~ ( subclass @ ( range_of @ SV74 ) @ ( domain_of @ ( domain_of @ SV74 ) ) )
          | ( operation @ SV74 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[690]) ).

thf(804,plain,
    ! [SV221: $i,SV75: $i] :
      ( ( ( ! [SY473: $i] :
              ~ ( compatible @ SV75 @ SV221 @ SY473 ) )
        = $true )
      | ( ( function @ SV75 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[691]) ).

thf(805,plain,
    ! [SV173: $i,SV76: $i] :
      ( ( ( ! [SY441: $i] :
              ~ ( compatible @ SV76 @ SV173 @ SY441 ) )
        = $true )
      | ( ( ( domain_of @ ( domain_of @ SV173 ) )
          = ( domain_of @ SV76 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[692]) ).

thf(806,plain,
    ! [SV222: $i,SV174: $i,SV77: $i] :
      ( ( ~ ( compatible @ SV77 @ SV174 @ SV222 )
        | ( subclass @ ( range_of @ SV77 ) @ ( domain_of @ ( domain_of @ SV222 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[693]) ).

thf(807,plain,
    ! [SV78: $i] :
      ( ( ( function @ SV78 )
        = $false )
      | ( ( ! [SY351: $i] :
              ( ( ( domain_of @ ( domain_of @ SY351 ) )
               != ( domain_of @ SV78 ) )
              | ! [SY352: $i] :
                  ( ~ ( subclass @ ( range_of @ SV78 ) @ ( domain_of @ ( domain_of @ SY352 ) ) )
                  | ( compatible @ SV78 @ SY351 @ SY352 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[694]) ).

thf(808,plain,
    ! [SV175: $i,SV79: $i] :
      ( ( ( ! [SY443: $i] :
              ~ ( homomorphism @ SV79 @ SV175 @ SY443 ) )
        = $true )
      | ( ( operation @ SV175 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[695]) ).

thf(809,plain,
    ! [SV223: $i,SV176: $i,SV80: $i] :
      ( ( ~ ( homomorphism @ SV80 @ SV176 @ SV223 )
        | ( operation @ SV223 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[696]) ).

thf(810,plain,
    ! [SV224: $i,SV177: $i,SV81: $i] :
      ( ( ~ ( homomorphism @ SV81 @ SV177 @ SV224 )
        | ( compatible @ SV81 @ SV177 @ SV224 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[697]) ).

thf(811,plain,
    ! [SV225: $i,SV178: $i,SV82: $i] :
      ( ( ~ ( homomorphism @ SV82 @ SV178 @ SV225 )
        | ! [SY474: $i,SY475: $i] :
            ( ~ ( member @ ( ordered_pair @ SY474 @ SY475 ) @ ( domain_of @ SV178 ) )
            | ( ( apply @ SV225 @ ( ordered_pair @ ( apply @ SV82 @ SY474 ) @ ( apply @ SV82 @ SY475 ) ) )
              = ( apply @ SV82 @ ( apply @ SV178 @ ( ordered_pair @ SY474 @ SY475 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[698]) ).

thf(812,plain,
    ! [SV83: $i] :
      ( ( ( operation @ SV83 )
        = $false )
      | ( ( ! [SY363: $i] :
              ( ~ ( operation @ SY363 )
              | ! [SY364: $i] :
                  ( ~ ( compatible @ SY364 @ SV83 @ SY363 )
                  | ( homomorphism @ SY364 @ SV83 @ SY363 )
                  | ( member @ ( ordered_pair @ ( not_homomorphism1 @ SY364 @ SV83 @ SY363 ) @ ( not_homomorphism2 @ SY364 @ SV83 @ SY363 ) ) @ ( domain_of @ SV83 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[699]) ).

thf(813,plain,
    ! [SV84: $i] :
      ( ( ( operation @ SV84 )
        = $false )
      | ( ( ! [SY365: $i] :
              ( ~ ( operation @ SY365 )
              | ! [SY366: $i] :
                  ( ~ ( compatible @ SY366 @ SV84 @ SY365 )
                  | ( ( apply @ SY365 @ ( ordered_pair @ ( apply @ SY366 @ ( not_homomorphism1 @ SY366 @ SV84 @ SY365 ) ) @ ( apply @ SY366 @ ( not_homomorphism2 @ SY366 @ SV84 @ SY365 ) ) ) )
                   != ( apply @ SY366 @ ( apply @ SV84 @ ( ordered_pair @ ( not_homomorphism1 @ SY366 @ SV84 @ SY365 ) @ ( not_homomorphism2 @ SY366 @ SV84 @ SY365 ) ) ) ) )
                  | ( homomorphism @ SY366 @ SV84 @ SY365 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[700]) ).

thf(814,plain,
    ! [SV179: $i,SV85: $i] :
      ( ( ( ! [SY449: $i,SY450: $i] :
              ~ ( member @ ( ordered_pair @ SV85 @ SV179 ) @ ( cross_product @ SY449 @ SY450 ) ) )
        = $true )
      | ( ( member @ SV85 @ ( unordered_pair @ SV85 @ SV179 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[701]) ).

thf(815,plain,
    ! [SV180: $i,SV86: $i] :
      ( ( ( ! [SY451: $i,SY452: $i] :
              ~ ( member @ ( ordered_pair @ SV86 @ SV180 ) @ ( cross_product @ SY451 @ SY452 ) ) )
        = $true )
      | ( ( member @ SV180 @ ( unordered_pair @ SV86 @ SV180 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[702]) ).

thf(816,plain,
    ! [SV181: $i,SV87: $i] :
      ( ( ( ! [SY453: $i,SY454: $i] :
              ~ ( member @ ( ordered_pair @ SV87 @ SV181 ) @ ( cross_product @ SY453 @ SY454 ) ) )
        = $true )
      | ( ( member @ SV87 @ universal_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[703]) ).

thf(817,plain,
    ! [SV182: $i,SV88: $i] :
      ( ( ( ! [SY455: $i,SY456: $i] :
              ~ ( member @ ( ordered_pair @ SV88 @ SV182 ) @ ( cross_product @ SY455 @ SY456 ) ) )
        = $true )
      | ( ( member @ SV182 @ universal_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[704]) ).

thf(818,plain,
    ! [SV183: $i,SV90: $i] :
      ( ( ( ~ ( subclass @ SV90 @ SV183 ) )
        = $true )
      | ( ( ! [SY457: $i] :
              ( ~ ( subclass @ SV183 @ SY457 )
              | ( subclass @ SV90 @ SY457 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[705]) ).

thf(819,plain,
    ! [SV184: $i,SV91: $i] :
      ( ( ( SV91 = SV184 )
        = $true )
      | ( ( ( member @ ( not_subclass_element @ SV91 @ SV184 ) @ SV91 )
          | ( member @ ( not_subclass_element @ SV184 @ SV91 ) @ SV184 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[706]) ).

thf(820,plain,
    ! [SV185: $i,SV92: $i] :
      ( ( ( ~ ( member @ ( not_subclass_element @ SV92 @ SV185 ) @ SV185 ) )
        = $true )
      | ( ( ( SV92 = SV185 )
          | ( member @ ( not_subclass_element @ SV185 @ SV92 ) @ SV185 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[707]) ).

thf(821,plain,
    ! [SV186: $i,SV93: $i] :
      ( ( ( ~ ( member @ ( not_subclass_element @ SV93 @ SV186 ) @ SV186 ) )
        = $true )
      | ( ( ( SV186 = SV93 )
          | ( member @ ( not_subclass_element @ SV186 @ SV93 ) @ SV186 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[708]) ).

thf(822,plain,
    ! [SV187: $i,SV94: $i] :
      ( ( ( ~ ( member @ ( not_subclass_element @ SV94 @ SV187 ) @ SV187 ) )
        = $true )
      | ( ( ~ ( member @ ( not_subclass_element @ SV187 @ SV94 ) @ SV94 )
          | ( SV94 = SV187 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[709]) ).

thf(823,plain,
    ! [SV188: $i,SV95: $i] :
      ( ( member @ SV95 @ ( intersection @ ( complement @ SV188 ) @ SV188 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[710]) ).

thf(824,plain,
    ! [SV98: $i] :
      ( ( ( subclass @ SV98 @ null_class )
        = $false )
      | ( ( SV98 = null_class )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[712]) ).

thf(825,plain,
    ! [SV103: $i,SV226: $i] :
      ( ( ( ( unordered_pair @ SV226 @ SV103 )
          = ( singleton @ SV226 ) )
        = $true )
      | ( ( member @ SV103 @ universal_class )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[717]) ).

thf(826,plain,
    ! [SV227: $i,SV104: $i] :
      ( ( ( ( unordered_pair @ SV104 @ SV227 )
          = ( singleton @ SV227 ) )
        = $true )
      | ( ( member @ SV104 @ universal_class )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[718]) ).

thf(827,plain,
    ! [SV192: $i,SV105: $i] :
      ( ( ( ( unordered_pair @ SV105 @ SV192 )
          = null_class )
        = $true )
      | ( ( ( member @ SV105 @ universal_class )
          | ( member @ SV192 @ universal_class ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[719]) ).

thf(828,plain,
    ! [SV228: $i,SV193: $i,SV106: $i] :
      ( ( ( ( unordered_pair @ SV106 @ SV193 )
         != ( unordered_pair @ SV106 @ SV228 ) )
        | ~ ( member @ ( ordered_pair @ SV193 @ SV228 ) @ ( cross_product @ universal_class @ universal_class ) )
        | ( SV193 = SV228 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[720]) ).

thf(829,plain,
    ! [SV229: $i,SV194: $i,SV107: $i] :
      ( ( ( ( unordered_pair @ SV107 @ SV194 )
         != ( unordered_pair @ SV229 @ SV194 ) )
        | ~ ( member @ ( ordered_pair @ SV107 @ SV229 ) @ ( cross_product @ universal_class @ universal_class ) )
        | ( SV107 = SV229 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[721]) ).

thf(830,plain,
    ! [SV108: $i] :
      ( ( ( member @ SV108 @ universal_class )
        = $false )
      | ( ( ! [SY396: $i] :
              ( ( unordered_pair @ SV108 @ SY396 )
             != null_class ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[722]) ).

thf(831,plain,
    ! [SV109: $i] :
      ( ( ( member @ SV109 @ universal_class )
        = $false )
      | ( ( ! [SY397: $i] :
              ( ( unordered_pair @ SY397 @ SV109 )
             != null_class ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[723]) ).

thf(832,plain,
    ! [SV195: $i,SV110: $i] :
      ( ( ( ! [SY460: $i,SY461: $i] :
              ~ ( member @ ( ordered_pair @ SV110 @ SV195 ) @ ( cross_product @ SY460 @ SY461 ) ) )
        = $true )
      | ( ( ( unordered_pair @ SV110 @ SV195 )
         != null_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[724]) ).

thf(833,plain,
    ! [SV196: $i,SV111: $i] :
      ( ( ( ~ ( member @ SV111 @ SV196 ) )
        = $true )
      | ( ( ! [SY462: $i] :
              ( ~ ( member @ SY462 @ SV196 )
              | ( subclass @ ( unordered_pair @ SV111 @ SY462 ) @ SV196 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[725]) ).

thf(834,plain,
    ! [SV114: $i] :
      ( ( ( member @ SV114 @ universal_class )
        = $false )
      | ( ( member @ SV114 @ ( singleton @ SV114 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[727]) ).

thf(835,plain,
    ! [SV115: $i] :
      ( ( ( member @ SV115 @ universal_class )
        = $false )
      | ( ( ( singleton @ SV115 )
         != null_class )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[728]) ).

thf(836,plain,
    ! [SV198: $i,SV116: $i] :
      ( ( ( ~ ( member @ SV116 @ ( singleton @ SV198 ) ) )
        = $true )
      | ( ( SV116 = SV198 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[729]) ).

thf(837,plain,
    ! [SV199: $i,SV118: $i] :
      ( ( ( ( singleton @ SV118 )
         != ( singleton @ SV199 ) )
        = $true )
      | ( ( ~ ( member @ SV118 @ universal_class )
          | ( SV118 = SV199 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[731]) ).

thf(838,plain,
    ! [SV200: $i,SV119: $i] :
      ( ( ( ( singleton @ SV119 )
         != ( singleton @ SV200 ) )
        = $true )
      | ( ( ~ ( member @ SV200 @ universal_class )
          | ( SV119 = SV200 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[732]) ).

thf(839,plain,
    ! [SV230: $i,SV201: $i,SV120: $i] :
      ( ( ( ( unordered_pair @ SV120 @ SV201 )
         != ( singleton @ SV230 ) )
        | ~ ( member @ SV230 @ universal_class )
        | ( SV230 = SV120 )
        | ( SV230 = SV201 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[733]) ).

thf(840,plain,
    ! [SV121: $i] :
      ( ( ( member @ SV121 @ universal_class )
        = $false )
      | ( ( member @ ( member_of @ ( singleton @ SV121 ) ) @ universal_class )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[734]) ).

thf(841,plain,
    ! [SV122: $i] :
      ( ( ( member @ SV122 @ universal_class )
        = $false )
      | ( ( ( singleton @ ( member_of @ ( singleton @ SV122 ) ) )
          = ( singleton @ SV122 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[735]) ).

thf(842,plain,
    ! [SV125: $i] :
      ( ( ( member @ SV125 @ universal_class )
        = $false )
      | ( ( ( member_of @ ( singleton @ SV125 ) )
          = SV125 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[738]) ).

thf(843,plain,
    ! [SV128: $i] :
      ( ( ( ( singleton @ ( member_of @ SV128 ) )
          = SV128 )
        = $false )
      | ( ( member @ SV128 @ universal_class )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[741]) ).

thf(844,plain,
    ! [SV129: $i] :
      ( ( ( ( singleton @ ( member_of @ SV129 ) )
          = SV129 )
        = $false )
      | ( ( ! [SY409: $i] :
              ( ~ ( member @ SY409 @ SV129 )
              | ( ( member_of @ SV129 )
                = SY409 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[742]) ).

thf(845,plain,
    ! [SV202: $i,SV130: $i] :
      ( ( ( ~ ( member @ SV130 @ SV202 ) )
        = $true )
      | ( ( subclass @ ( singleton @ SV130 ) @ SV202 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[743]) ).

thf(846,plain,
    ! [SV203: $i,SV131: $i] :
      ( ( ( ~ ( subclass @ SV131 @ ( singleton @ SV203 ) ) )
        = $true )
      | ( ( ( SV131 = null_class )
          | ( ( singleton @ SV203 )
            = SV131 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[744]) ).

thf(847,plain,
    ! [SV132: $i] :
      ( ( ( ( singleton @ ( not_subclass_element @ SV132 @ null_class ) )
          = SV132 )
        = $true )
      | ( ( SV132 = null_class )
        = $true )
      | ( ( member @ ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ SV132 @ null_class ) ) ) @ SV132 ) @ null_class ) @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ SV132 @ null_class ) ) ) @ SV132 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[745]) ).

thf(848,plain,
    ! [SV133: $i] :
      ( ( ( ( singleton @ ( not_subclass_element @ SV133 @ null_class ) )
          = SV133 )
        = $true )
      | ( ( SV133 = null_class )
        = $true )
      | ( ( member @ ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ SV133 @ null_class ) ) ) @ SV133 ) @ null_class ) @ SV133 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[746]) ).

thf(849,plain,
    ! [SV134: $i] :
      ( ( ( ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ SV134 @ null_class ) ) ) @ SV134 ) @ null_class )
          = ( not_subclass_element @ SV134 @ null_class ) )
        = $false )
      | ( ( ( ( singleton @ ( not_subclass_element @ SV134 @ null_class ) )
            = SV134 )
          | ( SV134 = null_class ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[747]) ).

thf(850,plain,
    ! [SV137: $i,SV1: $i] :
      ( ( ( subclass @ SV1 @ SV137 )
        = $false )
      | ( ( ! [SY414: $i] :
              ( ~ ( member @ SY414 @ SV1 )
              | ( member @ SY414 @ SV137 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[750]) ).

thf(851,plain,
    ! [SV139: $i,SV3: $i] :
      ( ( ( member @ ( not_subclass_element @ SV3 @ SV139 ) @ SV139 )
        = $false )
      | ( ( subclass @ SV3 @ SV139 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[752]) ).

thf(852,plain,
    ! [SV140: $i,SV5: $i] :
      ( ( ( SV5 = SV140 )
        = $false )
      | ( ( subclass @ SV5 @ SV140 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[753]) ).

thf(853,plain,
    ! [SV141: $i,SV6: $i] :
      ( ( ( SV6 = SV141 )
        = $false )
      | ( ( subclass @ SV141 @ SV6 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[754]) ).

thf(854,plain,
    ! [SV142: $i,SV7: $i] :
      ( ( ( subclass @ SV7 @ SV142 )
        = $false )
      | ( ( ~ ( subclass @ SV142 @ SV7 )
          | ( SV7 = SV142 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[755]) ).

thf(855,plain,
    ! [SV206: $i,SV143: $i,SV8: $i] :
      ( ( ( ~ ( member @ SV8 @ ( unordered_pair @ SV143 @ SV206 ) ) )
        = $true )
      | ( ( ( SV8 = SV143 )
          | ( SV8 = SV206 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[756]) ).

thf(856,plain,
    ! [SV231: $i,SV9: $i] :
      ( ( ( member @ SV9 @ ( unordered_pair @ SV9 @ SV231 ) )
        = $true )
      | ( ( member @ SV9 @ universal_class )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[757]) ).

thf(857,plain,
    ! [SV232: $i,SV10: $i] :
      ( ( ( member @ SV10 @ ( unordered_pair @ SV232 @ SV10 ) )
        = $true )
      | ( ( member @ SV10 @ universal_class )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[758]) ).

thf(858,plain,
    ! [SV207: $i,SV146: $i,SV14: $i] :
      ( ( ( ! [SY464: $i] :
              ~ ( member @ ( ordered_pair @ SV14 @ SV146 ) @ ( cross_product @ SV207 @ SY464 ) ) )
        = $true )
      | ( ( member @ SV14 @ SV207 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[759]) ).

thf(859,plain,
    ! [SV233: $i,SV208: $i,SV147: $i,SV15: $i] :
      ( ( ~ ( member @ ( ordered_pair @ SV15 @ SV147 ) @ ( cross_product @ SV208 @ SV233 ) )
        | ( member @ SV147 @ SV233 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[760]) ).

thf(860,plain,
    ! [SV148: $i,SV16: $i] :
      ( ( ( member @ SV16 @ SV148 )
        = $false )
      | ( ( ! [SY420: $i,SY421: $i] :
              ( ~ ( member @ SY420 @ SY421 )
              | ( member @ ( ordered_pair @ SV16 @ SY420 ) @ ( cross_product @ SV148 @ SY421 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[761]) ).

thf(861,plain,
    ! [SV234: $i,SV209: $i,SV17: $i] :
      ( ( ( ~ ( member @ SV17 @ ( cross_product @ SV209 @ SV234 ) ) )
        = $true )
      | ( ( ( ordered_pair @ ( first @ SV17 ) @ ( second @ SV17 ) )
          = SV17 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[762]) ).

thf(862,plain,
    ! [SV149: $i,SV18: $i] :
      ( ( ( member @ ( ordered_pair @ SV18 @ SV149 ) @ element_relation )
        = $false )
      | ( ( member @ SV18 @ SV149 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[763]) ).

thf(863,plain,
    ! [SV150: $i,SV19: $i] :
      ( ( ( member @ ( ordered_pair @ SV19 @ SV150 ) @ ( cross_product @ universal_class @ universal_class ) )
        = $false )
      | ( ( ~ ( member @ SV19 @ SV150 )
          | ( member @ ( ordered_pair @ SV19 @ SV150 ) @ element_relation ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[764]) ).

thf(864,plain,
    ! [SV235: $i,SV151: $i,SV20: $i] :
      ( ( ( ~ ( member @ SV20 @ ( intersection @ SV151 @ SV235 ) ) )
        = $true )
      | ( ( member @ SV20 @ SV151 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[765]) ).

thf(865,plain,
    ! [SV210: $i,SV152: $i,SV21: $i] :
      ( ( ( ~ ( member @ SV21 @ ( intersection @ SV152 @ SV210 ) ) )
        = $true )
      | ( ( member @ SV21 @ SV210 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[766]) ).

thf(866,plain,
    ! [SV153: $i,SV22: $i] :
      ( ( ( member @ SV22 @ SV153 )
        = $false )
      | ( ( ! [SY424: $i] :
              ( ~ ( member @ SV22 @ SY424 )
              | ( member @ SV22 @ ( intersection @ SV153 @ SY424 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[767]) ).

thf(867,plain,
    ! [SV154: $i,SV23: $i] :
      ( ( ( member @ SV23 @ ( complement @ SV154 ) )
        = $false )
      | ( ( ~ ( member @ SV23 @ SV154 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[768]) ).

thf(868,plain,
    ! [SV236: $i,SV24: $i] :
      ( ( ( ( member @ SV24 @ ( complement @ SV236 ) )
          | ( member @ SV24 @ SV236 ) )
        = $true )
      | ( ( member @ SV24 @ universal_class )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[769]) ).

thf(869,plain,
    ! [SV159: $i,SV29: $i] :
      ( ( ( ( restrict @ SV29 @ ( singleton @ SV159 ) @ universal_class )
          = null_class )
        = $false )
      | ( ( ~ ( member @ SV159 @ ( domain_of @ SV29 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[772]) ).

thf(870,plain,
    ! [SV30: $i,SV237: $i] :
      ( ( ( ( ( restrict @ SV237 @ ( singleton @ SV30 ) @ universal_class )
            = null_class )
          | ( member @ SV30 @ ( domain_of @ SV237 ) ) )
        = $true )
      | ( ( member @ SV30 @ universal_class )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[773]) ).

thf(871,plain,
    ! [SV238: $i,SV213: $i,SV160: $i,SV32: $i] :
      ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV32 @ SV160 ) @ SV213 ) @ ( rotate @ SV238 ) )
        | ( member @ ( ordered_pair @ ( ordered_pair @ SV160 @ SV213 ) @ SV32 ) @ SV238 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[774]) ).

thf(872,plain,
    ! [SV239: $i,SV214: $i,SV161: $i,SV33: $i] :
      ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV33 @ SV161 ) @ SV214 ) @ SV239 )
        | ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV214 @ SV33 ) @ SV161 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
        | ( member @ ( ordered_pair @ ( ordered_pair @ SV214 @ SV33 ) @ SV161 ) @ ( rotate @ SV239 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[775]) ).

thf(873,plain,
    ! [SV240: $i,SV215: $i,SV162: $i,SV35: $i] :
      ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV35 @ SV162 ) @ SV215 ) @ ( flip @ SV240 ) )
        | ( member @ ( ordered_pair @ ( ordered_pair @ SV162 @ SV35 ) @ SV215 ) @ SV240 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[776]) ).

thf(874,plain,
    ! [SV241: $i,SV216: $i,SV163: $i,SV36: $i] :
      ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV36 @ SV163 ) @ SV216 ) @ SV241 )
        | ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV163 @ SV36 ) @ SV216 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
        | ( member @ ( ordered_pair @ ( ordered_pair @ SV163 @ SV36 ) @ SV216 ) @ ( flip @ SV241 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[777]) ).

thf(875,plain,
    ! [SV167: $i,SV43: $i] :
      ( ( ( member @ ( ordered_pair @ SV43 @ SV167 ) @ successor_relation )
        = $false )
      | ( ( ( successor @ SV43 )
          = SV167 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[780]) ).

thf(876,plain,
    ! [SV168: $i,SV44: $i] :
      ( ( ( ( successor @ SV44 )
          = SV168 )
        = $false )
      | ( ( ~ ( member @ ( ordered_pair @ SV44 @ SV168 ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( member @ ( ordered_pair @ SV44 @ SV168 ) @ successor_relation ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[781]) ).

thf(877,plain,
    ! [SV47: $i] :
      ( ( ( ~ ( subclass @ ( image @ successor_relation @ SV47 ) @ SV47 ) )
        = $true )
      | ( ( inductive @ SV47 )
        = $true )
      | ( ( member @ null_class @ SV47 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[784]) ).

thf(878,plain,
    ! [SV242: $i,SV219: $i,SV170: $i,SV54: $i] :
      ( ( ~ ( member @ ( ordered_pair @ SV54 @ SV170 ) @ ( compose @ SV219 @ SV242 ) )
        | ( member @ SV170 @ ( image @ SV219 @ ( image @ SV242 @ ( singleton @ SV54 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[788]) ).

thf(879,plain,
    ! [SV243: $i,SV220: $i,SV171: $i,SV55: $i] :
      ( ( ~ ( member @ SV55 @ ( image @ SV171 @ ( image @ SV220 @ ( singleton @ SV243 ) ) ) )
        | ~ ( member @ ( ordered_pair @ SV243 @ SV55 ) @ ( cross_product @ universal_class @ universal_class ) )
        | ( member @ ( ordered_pair @ SV243 @ SV55 ) @ ( compose @ SV171 @ SV220 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[789]) ).

thf(880,plain,
    ! [SV60: $i] :
      ( ( ( ~ ( subclass @ ( compose @ SV60 @ ( inverse @ SV60 ) ) @ identity_relation ) )
        = $true )
      | ( ( function @ SV60 )
        = $true )
      | ( ( subclass @ SV60 @ ( cross_product @ universal_class @ universal_class ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[794]) ).

thf(881,plain,
    ! [SV61: $i,SV244: $i] :
      ( ( ( ~ ( member @ SV244 @ universal_class )
          | ( member @ ( image @ SV61 @ SV244 ) @ universal_class ) )
        = $true )
      | ( ( function @ SV61 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[795]) ).

thf(882,plain,
    ! [SV65: $i] :
      ( ( ( SV65 = null_class )
        = $true )
      | ( ( member @ ( apply @ choice @ SV65 ) @ SV65 )
        = $true )
      | ( ( member @ SV65 @ universal_class )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[796]) ).

thf(883,plain,
    ! [SV68: $i] :
      ( ( ( ~ ( function @ SV68 ) )
        = $true )
      | ( ( one_to_one @ SV68 )
        = $true )
      | ( ( function @ ( inverse @ SV68 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[799]) ).

thf(884,plain,
    ! [SV74: $i] :
      ( ( ( ( cross_product @ ( domain_of @ ( domain_of @ SV74 ) ) @ ( domain_of @ ( domain_of @ SV74 ) ) )
         != ( domain_of @ SV74 ) )
        = $true )
      | ( ( ~ ( subclass @ ( range_of @ SV74 ) @ ( domain_of @ ( domain_of @ SV74 ) ) )
          | ( operation @ SV74 ) )
        = $true )
      | ( ( function @ SV74 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[803]) ).

thf(885,plain,
    ! [SV245: $i,SV221: $i,SV75: $i] :
      ( ( ( ~ ( compatible @ SV75 @ SV221 @ SV245 ) )
        = $true )
      | ( ( function @ SV75 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[804]) ).

thf(886,plain,
    ! [SV246: $i,SV173: $i,SV76: $i] :
      ( ( ( ~ ( compatible @ SV76 @ SV173 @ SV246 ) )
        = $true )
      | ( ( ( domain_of @ ( domain_of @ SV173 ) )
          = ( domain_of @ SV76 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[805]) ).

thf(887,plain,
    ! [SV222: $i,SV174: $i,SV77: $i] :
      ( ( ( ~ ( compatible @ SV77 @ SV174 @ SV222 ) )
        = $true )
      | ( ( subclass @ ( range_of @ SV77 ) @ ( domain_of @ ( domain_of @ SV222 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[806]) ).

thf(888,plain,
    ! [SV78: $i,SV247: $i] :
      ( ( ( ( ( domain_of @ ( domain_of @ SV247 ) )
           != ( domain_of @ SV78 ) )
          | ! [SY476: $i] :
              ( ~ ( subclass @ ( range_of @ SV78 ) @ ( domain_of @ ( domain_of @ SY476 ) ) )
              | ( compatible @ SV78 @ SV247 @ SY476 ) ) )
        = $true )
      | ( ( function @ SV78 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[807]) ).

thf(889,plain,
    ! [SV248: $i,SV175: $i,SV79: $i] :
      ( ( ( ~ ( homomorphism @ SV79 @ SV175 @ SV248 ) )
        = $true )
      | ( ( operation @ SV175 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[808]) ).

thf(890,plain,
    ! [SV223: $i,SV176: $i,SV80: $i] :
      ( ( ( ~ ( homomorphism @ SV80 @ SV176 @ SV223 ) )
        = $true )
      | ( ( operation @ SV223 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[809]) ).

thf(891,plain,
    ! [SV224: $i,SV177: $i,SV81: $i] :
      ( ( ( ~ ( homomorphism @ SV81 @ SV177 @ SV224 ) )
        = $true )
      | ( ( compatible @ SV81 @ SV177 @ SV224 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[810]) ).

thf(892,plain,
    ! [SV225: $i,SV178: $i,SV82: $i] :
      ( ( ( ~ ( homomorphism @ SV82 @ SV178 @ SV225 ) )
        = $true )
      | ( ( ! [SY474: $i,SY475: $i] :
              ( ~ ( member @ ( ordered_pair @ SY474 @ SY475 ) @ ( domain_of @ SV178 ) )
              | ( ( apply @ SV225 @ ( ordered_pair @ ( apply @ SV82 @ SY474 ) @ ( apply @ SV82 @ SY475 ) ) )
                = ( apply @ SV82 @ ( apply @ SV178 @ ( ordered_pair @ SY474 @ SY475 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[811]) ).

thf(893,plain,
    ! [SV83: $i,SV249: $i] :
      ( ( ( ~ ( operation @ SV249 )
          | ! [SY477: $i] :
              ( ~ ( compatible @ SY477 @ SV83 @ SV249 )
              | ( homomorphism @ SY477 @ SV83 @ SV249 )
              | ( member @ ( ordered_pair @ ( not_homomorphism1 @ SY477 @ SV83 @ SV249 ) @ ( not_homomorphism2 @ SY477 @ SV83 @ SV249 ) ) @ ( domain_of @ SV83 ) ) ) )
        = $true )
      | ( ( operation @ SV83 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[812]) ).

thf(894,plain,
    ! [SV84: $i,SV250: $i] :
      ( ( ( ~ ( operation @ SV250 )
          | ! [SY478: $i] :
              ( ~ ( compatible @ SY478 @ SV84 @ SV250 )
              | ( ( apply @ SV250 @ ( ordered_pair @ ( apply @ SY478 @ ( not_homomorphism1 @ SY478 @ SV84 @ SV250 ) ) @ ( apply @ SY478 @ ( not_homomorphism2 @ SY478 @ SV84 @ SV250 ) ) ) )
               != ( apply @ SY478 @ ( apply @ SV84 @ ( ordered_pair @ ( not_homomorphism1 @ SY478 @ SV84 @ SV250 ) @ ( not_homomorphism2 @ SY478 @ SV84 @ SV250 ) ) ) ) )
              | ( homomorphism @ SY478 @ SV84 @ SV250 ) ) )
        = $true )
      | ( ( operation @ SV84 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[813]) ).

thf(895,plain,
    ! [SV251: $i,SV179: $i,SV85: $i] :
      ( ( ( ! [SY479: $i] :
              ~ ( member @ ( ordered_pair @ SV85 @ SV179 ) @ ( cross_product @ SV251 @ SY479 ) ) )
        = $true )
      | ( ( member @ SV85 @ ( unordered_pair @ SV85 @ SV179 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[814]) ).

thf(896,plain,
    ! [SV252: $i,SV180: $i,SV86: $i] :
      ( ( ( ! [SY480: $i] :
              ~ ( member @ ( ordered_pair @ SV86 @ SV180 ) @ ( cross_product @ SV252 @ SY480 ) ) )
        = $true )
      | ( ( member @ SV180 @ ( unordered_pair @ SV86 @ SV180 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[815]) ).

thf(897,plain,
    ! [SV253: $i,SV181: $i,SV87: $i] :
      ( ( ( ! [SY481: $i] :
              ~ ( member @ ( ordered_pair @ SV87 @ SV181 ) @ ( cross_product @ SV253 @ SY481 ) ) )
        = $true )
      | ( ( member @ SV87 @ universal_class )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[816]) ).

thf(898,plain,
    ! [SV254: $i,SV182: $i,SV88: $i] :
      ( ( ( ! [SY482: $i] :
              ~ ( member @ ( ordered_pair @ SV88 @ SV182 ) @ ( cross_product @ SV254 @ SY482 ) ) )
        = $true )
      | ( ( member @ SV182 @ universal_class )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[817]) ).

thf(899,plain,
    ! [SV183: $i,SV90: $i] :
      ( ( ( subclass @ SV90 @ SV183 )
        = $false )
      | ( ( ! [SY457: $i] :
              ( ~ ( subclass @ SV183 @ SY457 )
              | ( subclass @ SV90 @ SY457 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[818]) ).

thf(900,plain,
    ! [SV184: $i,SV91: $i] :
      ( ( ( member @ ( not_subclass_element @ SV91 @ SV184 ) @ SV91 )
        = $true )
      | ( ( member @ ( not_subclass_element @ SV184 @ SV91 ) @ SV184 )
        = $true )
      | ( ( SV91 = SV184 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[819]) ).

thf(901,plain,
    ! [SV185: $i,SV92: $i] :
      ( ( ( member @ ( not_subclass_element @ SV92 @ SV185 ) @ SV185 )
        = $false )
      | ( ( ( SV92 = SV185 )
          | ( member @ ( not_subclass_element @ SV185 @ SV92 ) @ SV185 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[820]) ).

thf(902,plain,
    ! [SV186: $i,SV93: $i] :
      ( ( ( member @ ( not_subclass_element @ SV93 @ SV186 ) @ SV186 )
        = $false )
      | ( ( ( SV186 = SV93 )
          | ( member @ ( not_subclass_element @ SV186 @ SV93 ) @ SV186 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[821]) ).

thf(903,plain,
    ! [SV187: $i,SV94: $i] :
      ( ( ( member @ ( not_subclass_element @ SV94 @ SV187 ) @ SV187 )
        = $false )
      | ( ( ~ ( member @ ( not_subclass_element @ SV187 @ SV94 ) @ SV94 )
          | ( SV94 = SV187 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[822]) ).

thf(904,plain,
    ! [SV192: $i,SV105: $i] :
      ( ( ( member @ SV105 @ universal_class )
        = $true )
      | ( ( member @ SV192 @ universal_class )
        = $true )
      | ( ( ( unordered_pair @ SV105 @ SV192 )
          = null_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[827]) ).

thf(905,plain,
    ! [SV228: $i,SV193: $i,SV106: $i] :
      ( ( ( ( unordered_pair @ SV106 @ SV193 )
         != ( unordered_pair @ SV106 @ SV228 ) )
        = $true )
      | ( ( ~ ( member @ ( ordered_pair @ SV193 @ SV228 ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( SV193 = SV228 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[828]) ).

thf(906,plain,
    ! [SV229: $i,SV194: $i,SV107: $i] :
      ( ( ( ( unordered_pair @ SV107 @ SV194 )
         != ( unordered_pair @ SV229 @ SV194 ) )
        = $true )
      | ( ( ~ ( member @ ( ordered_pair @ SV107 @ SV229 ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( SV107 = SV229 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[829]) ).

thf(907,plain,
    ! [SV255: $i,SV108: $i] :
      ( ( ( ( unordered_pair @ SV108 @ SV255 )
         != null_class )
        = $true )
      | ( ( member @ SV108 @ universal_class )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[830]) ).

thf(908,plain,
    ! [SV109: $i,SV256: $i] :
      ( ( ( ( unordered_pair @ SV256 @ SV109 )
         != null_class )
        = $true )
      | ( ( member @ SV109 @ universal_class )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[831]) ).

thf(909,plain,
    ! [SV257: $i,SV195: $i,SV110: $i] :
      ( ( ( ! [SY483: $i] :
              ~ ( member @ ( ordered_pair @ SV110 @ SV195 ) @ ( cross_product @ SV257 @ SY483 ) ) )
        = $true )
      | ( ( ( unordered_pair @ SV110 @ SV195 )
         != null_class )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[832]) ).

thf(910,plain,
    ! [SV196: $i,SV111: $i] :
      ( ( ( member @ SV111 @ SV196 )
        = $false )
      | ( ( ! [SY462: $i] :
              ( ~ ( member @ SY462 @ SV196 )
              | ( subclass @ ( unordered_pair @ SV111 @ SY462 ) @ SV196 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[833]) ).

thf(911,plain,
    ! [SV115: $i] :
      ( ( ( ( singleton @ SV115 )
          = null_class )
        = $false )
      | ( ( member @ SV115 @ universal_class )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[835]) ).

thf(912,plain,
    ! [SV198: $i,SV116: $i] :
      ( ( ( member @ SV116 @ ( singleton @ SV198 ) )
        = $false )
      | ( ( SV116 = SV198 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[836]) ).

thf(913,plain,
    ! [SV199: $i,SV118: $i] :
      ( ( ( ( singleton @ SV118 )
          = ( singleton @ SV199 ) )
        = $false )
      | ( ( ~ ( member @ SV118 @ universal_class )
          | ( SV118 = SV199 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[837]) ).

thf(914,plain,
    ! [SV200: $i,SV119: $i] :
      ( ( ( ( singleton @ SV119 )
          = ( singleton @ SV200 ) )
        = $false )
      | ( ( ~ ( member @ SV200 @ universal_class )
          | ( SV119 = SV200 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[838]) ).

thf(915,plain,
    ! [SV230: $i,SV201: $i,SV120: $i] :
      ( ( ( ( unordered_pair @ SV120 @ SV201 )
         != ( singleton @ SV230 ) )
        = $true )
      | ( ( ~ ( member @ SV230 @ universal_class )
          | ( SV230 = SV120 )
          | ( SV230 = SV201 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[839]) ).

thf(916,plain,
    ! [SV129: $i,SV258: $i] :
      ( ( ( ~ ( member @ SV258 @ SV129 )
          | ( ( member_of @ SV129 )
            = SV258 ) )
        = $true )
      | ( ( ( singleton @ ( member_of @ SV129 ) )
          = SV129 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[844]) ).

thf(917,plain,
    ! [SV202: $i,SV130: $i] :
      ( ( ( member @ SV130 @ SV202 )
        = $false )
      | ( ( subclass @ ( singleton @ SV130 ) @ SV202 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[845]) ).

thf(918,plain,
    ! [SV203: $i,SV131: $i] :
      ( ( ( subclass @ SV131 @ ( singleton @ SV203 ) )
        = $false )
      | ( ( ( SV131 = null_class )
          | ( ( singleton @ SV203 )
            = SV131 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[846]) ).

thf(919,plain,
    ! [SV134: $i] :
      ( ( ( ( singleton @ ( not_subclass_element @ SV134 @ null_class ) )
          = SV134 )
        = $true )
      | ( ( SV134 = null_class )
        = $true )
      | ( ( ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ SV134 @ null_class ) ) ) @ SV134 ) @ null_class )
          = ( not_subclass_element @ SV134 @ null_class ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[849]) ).

thf(920,plain,
    ! [SV137: $i,SV1: $i,SV259: $i] :
      ( ( ( ~ ( member @ SV259 @ SV1 )
          | ( member @ SV259 @ SV137 ) )
        = $true )
      | ( ( subclass @ SV1 @ SV137 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[850]) ).

thf(921,plain,
    ! [SV7: $i,SV142: $i] :
      ( ( ( ~ ( subclass @ SV142 @ SV7 ) )
        = $true )
      | ( ( SV7 = SV142 )
        = $true )
      | ( ( subclass @ SV7 @ SV142 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[854]) ).

thf(922,plain,
    ! [SV206: $i,SV143: $i,SV8: $i] :
      ( ( ( member @ SV8 @ ( unordered_pair @ SV143 @ SV206 ) )
        = $false )
      | ( ( ( SV8 = SV143 )
          | ( SV8 = SV206 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[855]) ).

thf(923,plain,
    ! [SV260: $i,SV207: $i,SV146: $i,SV14: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV14 @ SV146 ) @ ( cross_product @ SV207 @ SV260 ) ) )
        = $true )
      | ( ( member @ SV14 @ SV207 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[858]) ).

thf(924,plain,
    ! [SV233: $i,SV208: $i,SV147: $i,SV15: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV15 @ SV147 ) @ ( cross_product @ SV208 @ SV233 ) ) )
        = $true )
      | ( ( member @ SV147 @ SV233 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[859]) ).

thf(925,plain,
    ! [SV148: $i,SV16: $i,SV261: $i] :
      ( ( ( ! [SY484: $i] :
              ( ~ ( member @ SV261 @ SY484 )
              | ( member @ ( ordered_pair @ SV16 @ SV261 ) @ ( cross_product @ SV148 @ SY484 ) ) ) )
        = $true )
      | ( ( member @ SV16 @ SV148 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[860]) ).

thf(926,plain,
    ! [SV234: $i,SV209: $i,SV17: $i] :
      ( ( ( member @ SV17 @ ( cross_product @ SV209 @ SV234 ) )
        = $false )
      | ( ( ( ordered_pair @ ( first @ SV17 ) @ ( second @ SV17 ) )
          = SV17 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[861]) ).

thf(927,plain,
    ! [SV150: $i,SV19: $i] :
      ( ( ( ~ ( member @ SV19 @ SV150 ) )
        = $true )
      | ( ( member @ ( ordered_pair @ SV19 @ SV150 ) @ element_relation )
        = $true )
      | ( ( member @ ( ordered_pair @ SV19 @ SV150 ) @ ( cross_product @ universal_class @ universal_class ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[863]) ).

thf(928,plain,
    ! [SV235: $i,SV151: $i,SV20: $i] :
      ( ( ( member @ SV20 @ ( intersection @ SV151 @ SV235 ) )
        = $false )
      | ( ( member @ SV20 @ SV151 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[864]) ).

thf(929,plain,
    ! [SV210: $i,SV152: $i,SV21: $i] :
      ( ( ( member @ SV21 @ ( intersection @ SV152 @ SV210 ) )
        = $false )
      | ( ( member @ SV21 @ SV210 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[865]) ).

thf(930,plain,
    ! [SV153: $i,SV262: $i,SV22: $i] :
      ( ( ( ~ ( member @ SV22 @ SV262 )
          | ( member @ SV22 @ ( intersection @ SV153 @ SV262 ) ) )
        = $true )
      | ( ( member @ SV22 @ SV153 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[866]) ).

thf(931,plain,
    ! [SV154: $i,SV23: $i] :
      ( ( ( member @ SV23 @ SV154 )
        = $false )
      | ( ( member @ SV23 @ ( complement @ SV154 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[867]) ).

thf(932,plain,
    ! [SV236: $i,SV24: $i] :
      ( ( ( member @ SV24 @ ( complement @ SV236 ) )
        = $true )
      | ( ( member @ SV24 @ SV236 )
        = $true )
      | ( ( member @ SV24 @ universal_class )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[868]) ).

thf(933,plain,
    ! [SV29: $i,SV159: $i] :
      ( ( ( member @ SV159 @ ( domain_of @ SV29 ) )
        = $false )
      | ( ( ( restrict @ SV29 @ ( singleton @ SV159 ) @ universal_class )
          = null_class )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[869]) ).

thf(934,plain,
    ! [SV30: $i,SV237: $i] :
      ( ( ( ( restrict @ SV237 @ ( singleton @ SV30 ) @ universal_class )
          = null_class )
        = $true )
      | ( ( member @ SV30 @ ( domain_of @ SV237 ) )
        = $true )
      | ( ( member @ SV30 @ universal_class )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[870]) ).

thf(935,plain,
    ! [SV238: $i,SV213: $i,SV160: $i,SV32: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV32 @ SV160 ) @ SV213 ) @ ( rotate @ SV238 ) ) )
        = $true )
      | ( ( member @ ( ordered_pair @ ( ordered_pair @ SV160 @ SV213 ) @ SV32 ) @ SV238 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[871]) ).

thf(936,plain,
    ! [SV239: $i,SV214: $i,SV161: $i,SV33: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV33 @ SV161 ) @ SV214 ) @ SV239 ) )
        = $true )
      | ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV214 @ SV33 ) @ SV161 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
          | ( member @ ( ordered_pair @ ( ordered_pair @ SV214 @ SV33 ) @ SV161 ) @ ( rotate @ SV239 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[872]) ).

thf(937,plain,
    ! [SV240: $i,SV215: $i,SV162: $i,SV35: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV35 @ SV162 ) @ SV215 ) @ ( flip @ SV240 ) ) )
        = $true )
      | ( ( member @ ( ordered_pair @ ( ordered_pair @ SV162 @ SV35 ) @ SV215 ) @ SV240 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[873]) ).

thf(938,plain,
    ! [SV241: $i,SV216: $i,SV163: $i,SV36: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV36 @ SV163 ) @ SV216 ) @ SV241 ) )
        = $true )
      | ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV163 @ SV36 ) @ SV216 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
          | ( member @ ( ordered_pair @ ( ordered_pair @ SV163 @ SV36 ) @ SV216 ) @ ( flip @ SV241 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[874]) ).

thf(939,plain,
    ! [SV168: $i,SV44: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV44 @ SV168 ) @ ( cross_product @ universal_class @ universal_class ) ) )
        = $true )
      | ( ( member @ ( ordered_pair @ SV44 @ SV168 ) @ successor_relation )
        = $true )
      | ( ( ( successor @ SV44 )
          = SV168 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[876]) ).

thf(940,plain,
    ! [SV47: $i] :
      ( ( ( subclass @ ( image @ successor_relation @ SV47 ) @ SV47 )
        = $false )
      | ( ( inductive @ SV47 )
        = $true )
      | ( ( member @ null_class @ SV47 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[877]) ).

thf(941,plain,
    ! [SV242: $i,SV219: $i,SV170: $i,SV54: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV54 @ SV170 ) @ ( compose @ SV219 @ SV242 ) ) )
        = $true )
      | ( ( member @ SV170 @ ( image @ SV219 @ ( image @ SV242 @ ( singleton @ SV54 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[878]) ).

thf(942,plain,
    ! [SV243: $i,SV220: $i,SV171: $i,SV55: $i] :
      ( ( ( ~ ( member @ SV55 @ ( image @ SV171 @ ( image @ SV220 @ ( singleton @ SV243 ) ) ) ) )
        = $true )
      | ( ( ~ ( member @ ( ordered_pair @ SV243 @ SV55 ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( member @ ( ordered_pair @ SV243 @ SV55 ) @ ( compose @ SV171 @ SV220 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[879]) ).

thf(943,plain,
    ! [SV60: $i] :
      ( ( ( subclass @ ( compose @ SV60 @ ( inverse @ SV60 ) ) @ identity_relation )
        = $false )
      | ( ( function @ SV60 )
        = $true )
      | ( ( subclass @ SV60 @ ( cross_product @ universal_class @ universal_class ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[880]) ).

thf(944,plain,
    ! [SV61: $i,SV244: $i] :
      ( ( ( ~ ( member @ SV244 @ universal_class ) )
        = $true )
      | ( ( member @ ( image @ SV61 @ SV244 ) @ universal_class )
        = $true )
      | ( ( function @ SV61 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[881]) ).

thf(945,plain,
    ! [SV68: $i] :
      ( ( ( function @ SV68 )
        = $false )
      | ( ( one_to_one @ SV68 )
        = $true )
      | ( ( function @ ( inverse @ SV68 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[883]) ).

thf(946,plain,
    ! [SV74: $i] :
      ( ( ( ( cross_product @ ( domain_of @ ( domain_of @ SV74 ) ) @ ( domain_of @ ( domain_of @ SV74 ) ) )
          = ( domain_of @ SV74 ) )
        = $false )
      | ( ( ~ ( subclass @ ( range_of @ SV74 ) @ ( domain_of @ ( domain_of @ SV74 ) ) )
          | ( operation @ SV74 ) )
        = $true )
      | ( ( function @ SV74 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[884]) ).

thf(947,plain,
    ! [SV245: $i,SV221: $i,SV75: $i] :
      ( ( ( compatible @ SV75 @ SV221 @ SV245 )
        = $false )
      | ( ( function @ SV75 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[885]) ).

thf(948,plain,
    ! [SV246: $i,SV173: $i,SV76: $i] :
      ( ( ( compatible @ SV76 @ SV173 @ SV246 )
        = $false )
      | ( ( ( domain_of @ ( domain_of @ SV173 ) )
          = ( domain_of @ SV76 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[886]) ).

thf(949,plain,
    ! [SV222: $i,SV174: $i,SV77: $i] :
      ( ( ( compatible @ SV77 @ SV174 @ SV222 )
        = $false )
      | ( ( subclass @ ( range_of @ SV77 ) @ ( domain_of @ ( domain_of @ SV222 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[887]) ).

thf(950,plain,
    ! [SV78: $i,SV247: $i] :
      ( ( ( ( domain_of @ ( domain_of @ SV247 ) )
         != ( domain_of @ SV78 ) )
        = $true )
      | ( ( ! [SY476: $i] :
              ( ~ ( subclass @ ( range_of @ SV78 ) @ ( domain_of @ ( domain_of @ SY476 ) ) )
              | ( compatible @ SV78 @ SV247 @ SY476 ) ) )
        = $true )
      | ( ( function @ SV78 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[888]) ).

thf(951,plain,
    ! [SV248: $i,SV175: $i,SV79: $i] :
      ( ( ( homomorphism @ SV79 @ SV175 @ SV248 )
        = $false )
      | ( ( operation @ SV175 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[889]) ).

thf(952,plain,
    ! [SV223: $i,SV176: $i,SV80: $i] :
      ( ( ( homomorphism @ SV80 @ SV176 @ SV223 )
        = $false )
      | ( ( operation @ SV223 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[890]) ).

thf(953,plain,
    ! [SV224: $i,SV177: $i,SV81: $i] :
      ( ( ( homomorphism @ SV81 @ SV177 @ SV224 )
        = $false )
      | ( ( compatible @ SV81 @ SV177 @ SV224 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[891]) ).

thf(954,plain,
    ! [SV225: $i,SV178: $i,SV82: $i] :
      ( ( ( homomorphism @ SV82 @ SV178 @ SV225 )
        = $false )
      | ( ( ! [SY474: $i,SY475: $i] :
              ( ~ ( member @ ( ordered_pair @ SY474 @ SY475 ) @ ( domain_of @ SV178 ) )
              | ( ( apply @ SV225 @ ( ordered_pair @ ( apply @ SV82 @ SY474 ) @ ( apply @ SV82 @ SY475 ) ) )
                = ( apply @ SV82 @ ( apply @ SV178 @ ( ordered_pair @ SY474 @ SY475 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[892]) ).

thf(955,plain,
    ! [SV83: $i,SV249: $i] :
      ( ( ( ~ ( operation @ SV249 ) )
        = $true )
      | ( ( ! [SY477: $i] :
              ( ~ ( compatible @ SY477 @ SV83 @ SV249 )
              | ( homomorphism @ SY477 @ SV83 @ SV249 )
              | ( member @ ( ordered_pair @ ( not_homomorphism1 @ SY477 @ SV83 @ SV249 ) @ ( not_homomorphism2 @ SY477 @ SV83 @ SV249 ) ) @ ( domain_of @ SV83 ) ) ) )
        = $true )
      | ( ( operation @ SV83 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[893]) ).

thf(956,plain,
    ! [SV84: $i,SV250: $i] :
      ( ( ( ~ ( operation @ SV250 ) )
        = $true )
      | ( ( ! [SY478: $i] :
              ( ~ ( compatible @ SY478 @ SV84 @ SV250 )
              | ( ( apply @ SV250 @ ( ordered_pair @ ( apply @ SY478 @ ( not_homomorphism1 @ SY478 @ SV84 @ SV250 ) ) @ ( apply @ SY478 @ ( not_homomorphism2 @ SY478 @ SV84 @ SV250 ) ) ) )
               != ( apply @ SY478 @ ( apply @ SV84 @ ( ordered_pair @ ( not_homomorphism1 @ SY478 @ SV84 @ SV250 ) @ ( not_homomorphism2 @ SY478 @ SV84 @ SV250 ) ) ) ) )
              | ( homomorphism @ SY478 @ SV84 @ SV250 ) ) )
        = $true )
      | ( ( operation @ SV84 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[894]) ).

thf(957,plain,
    ! [SV263: $i,SV251: $i,SV179: $i,SV85: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV85 @ SV179 ) @ ( cross_product @ SV251 @ SV263 ) ) )
        = $true )
      | ( ( member @ SV85 @ ( unordered_pair @ SV85 @ SV179 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[895]) ).

thf(958,plain,
    ! [SV264: $i,SV252: $i,SV180: $i,SV86: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV86 @ SV180 ) @ ( cross_product @ SV252 @ SV264 ) ) )
        = $true )
      | ( ( member @ SV180 @ ( unordered_pair @ SV86 @ SV180 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[896]) ).

thf(959,plain,
    ! [SV265: $i,SV253: $i,SV181: $i,SV87: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV87 @ SV181 ) @ ( cross_product @ SV253 @ SV265 ) ) )
        = $true )
      | ( ( member @ SV87 @ universal_class )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[897]) ).

thf(960,plain,
    ! [SV266: $i,SV254: $i,SV182: $i,SV88: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV88 @ SV182 ) @ ( cross_product @ SV254 @ SV266 ) ) )
        = $true )
      | ( ( member @ SV182 @ universal_class )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[898]) ).

thf(961,plain,
    ! [SV90: $i,SV267: $i,SV183: $i] :
      ( ( ( ~ ( subclass @ SV183 @ SV267 )
          | ( subclass @ SV90 @ SV267 ) )
        = $true )
      | ( ( subclass @ SV90 @ SV183 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[899]) ).

thf(962,plain,
    ! [SV185: $i,SV92: $i] :
      ( ( ( SV92 = SV185 )
        = $true )
      | ( ( member @ ( not_subclass_element @ SV185 @ SV92 ) @ SV185 )
        = $true )
      | ( ( member @ ( not_subclass_element @ SV92 @ SV185 ) @ SV185 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[901]) ).

thf(963,plain,
    ! [SV93: $i,SV186: $i] :
      ( ( ( SV186 = SV93 )
        = $true )
      | ( ( member @ ( not_subclass_element @ SV186 @ SV93 ) @ SV186 )
        = $true )
      | ( ( member @ ( not_subclass_element @ SV93 @ SV186 ) @ SV186 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[902]) ).

thf(964,plain,
    ! [SV94: $i,SV187: $i] :
      ( ( ( ~ ( member @ ( not_subclass_element @ SV187 @ SV94 ) @ SV94 ) )
        = $true )
      | ( ( SV94 = SV187 )
        = $true )
      | ( ( member @ ( not_subclass_element @ SV94 @ SV187 ) @ SV187 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[903]) ).

thf(965,plain,
    ! [SV228: $i,SV193: $i,SV106: $i] :
      ( ( ( ( unordered_pair @ SV106 @ SV193 )
          = ( unordered_pair @ SV106 @ SV228 ) )
        = $false )
      | ( ( ~ ( member @ ( ordered_pair @ SV193 @ SV228 ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( SV193 = SV228 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[905]) ).

thf(966,plain,
    ! [SV229: $i,SV194: $i,SV107: $i] :
      ( ( ( ( unordered_pair @ SV107 @ SV194 )
          = ( unordered_pair @ SV229 @ SV194 ) )
        = $false )
      | ( ( ~ ( member @ ( ordered_pair @ SV107 @ SV229 ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( SV107 = SV229 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[906]) ).

thf(967,plain,
    ! [SV255: $i,SV108: $i] :
      ( ( ( ( unordered_pair @ SV108 @ SV255 )
          = null_class )
        = $false )
      | ( ( member @ SV108 @ universal_class )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[907]) ).

thf(968,plain,
    ! [SV109: $i,SV256: $i] :
      ( ( ( ( unordered_pair @ SV256 @ SV109 )
          = null_class )
        = $false )
      | ( ( member @ SV109 @ universal_class )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[908]) ).

thf(969,plain,
    ! [SV268: $i,SV257: $i,SV195: $i,SV110: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV110 @ SV195 ) @ ( cross_product @ SV257 @ SV268 ) ) )
        = $true )
      | ( ( ( unordered_pair @ SV110 @ SV195 )
         != null_class )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[909]) ).

thf(970,plain,
    ! [SV111: $i,SV196: $i,SV269: $i] :
      ( ( ( ~ ( member @ SV269 @ SV196 )
          | ( subclass @ ( unordered_pair @ SV111 @ SV269 ) @ SV196 ) )
        = $true )
      | ( ( member @ SV111 @ SV196 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[910]) ).

thf(971,plain,
    ! [SV199: $i,SV118: $i] :
      ( ( ( ~ ( member @ SV118 @ universal_class ) )
        = $true )
      | ( ( SV118 = SV199 )
        = $true )
      | ( ( ( singleton @ SV118 )
          = ( singleton @ SV199 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[913]) ).

thf(972,plain,
    ! [SV119: $i,SV200: $i] :
      ( ( ( ~ ( member @ SV200 @ universal_class ) )
        = $true )
      | ( ( SV119 = SV200 )
        = $true )
      | ( ( ( singleton @ SV119 )
          = ( singleton @ SV200 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[914]) ).

thf(973,plain,
    ! [SV230: $i,SV201: $i,SV120: $i] :
      ( ( ( ( unordered_pair @ SV120 @ SV201 )
          = ( singleton @ SV230 ) )
        = $false )
      | ( ( ~ ( member @ SV230 @ universal_class )
          | ( SV230 = SV120 )
          | ( SV230 = SV201 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[915]) ).

thf(974,plain,
    ! [SV129: $i,SV258: $i] :
      ( ( ( ~ ( member @ SV258 @ SV129 ) )
        = $true )
      | ( ( ( member_of @ SV129 )
          = SV258 )
        = $true )
      | ( ( ( singleton @ ( member_of @ SV129 ) )
          = SV129 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[916]) ).

thf(975,plain,
    ! [SV203: $i,SV131: $i] :
      ( ( ( SV131 = null_class )
        = $true )
      | ( ( ( singleton @ SV203 )
          = SV131 )
        = $true )
      | ( ( subclass @ SV131 @ ( singleton @ SV203 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[918]) ).

thf(976,plain,
    ! [SV137: $i,SV1: $i,SV259: $i] :
      ( ( ( ~ ( member @ SV259 @ SV1 ) )
        = $true )
      | ( ( member @ SV259 @ SV137 )
        = $true )
      | ( ( subclass @ SV1 @ SV137 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[920]) ).

thf(977,plain,
    ! [SV7: $i,SV142: $i] :
      ( ( ( subclass @ SV142 @ SV7 )
        = $false )
      | ( ( SV7 = SV142 )
        = $true )
      | ( ( subclass @ SV7 @ SV142 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[921]) ).

thf(978,plain,
    ! [SV206: $i,SV143: $i,SV8: $i] :
      ( ( ( SV8 = SV143 )
        = $true )
      | ( ( SV8 = SV206 )
        = $true )
      | ( ( member @ SV8 @ ( unordered_pair @ SV143 @ SV206 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[922]) ).

thf(979,plain,
    ! [SV260: $i,SV207: $i,SV146: $i,SV14: $i] :
      ( ( ( member @ ( ordered_pair @ SV14 @ SV146 ) @ ( cross_product @ SV207 @ SV260 ) )
        = $false )
      | ( ( member @ SV14 @ SV207 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[923]) ).

thf(980,plain,
    ! [SV233: $i,SV208: $i,SV147: $i,SV15: $i] :
      ( ( ( member @ ( ordered_pair @ SV15 @ SV147 ) @ ( cross_product @ SV208 @ SV233 ) )
        = $false )
      | ( ( member @ SV147 @ SV233 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[924]) ).

thf(981,plain,
    ! [SV148: $i,SV16: $i,SV270: $i,SV261: $i] :
      ( ( ( ~ ( member @ SV261 @ SV270 )
          | ( member @ ( ordered_pair @ SV16 @ SV261 ) @ ( cross_product @ SV148 @ SV270 ) ) )
        = $true )
      | ( ( member @ SV16 @ SV148 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[925]) ).

thf(982,plain,
    ! [SV150: $i,SV19: $i] :
      ( ( ( member @ SV19 @ SV150 )
        = $false )
      | ( ( member @ ( ordered_pair @ SV19 @ SV150 ) @ element_relation )
        = $true )
      | ( ( member @ ( ordered_pair @ SV19 @ SV150 ) @ ( cross_product @ universal_class @ universal_class ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[927]) ).

thf(983,plain,
    ! [SV153: $i,SV262: $i,SV22: $i] :
      ( ( ( ~ ( member @ SV22 @ SV262 ) )
        = $true )
      | ( ( member @ SV22 @ ( intersection @ SV153 @ SV262 ) )
        = $true )
      | ( ( member @ SV22 @ SV153 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[930]) ).

thf(984,plain,
    ! [SV238: $i,SV213: $i,SV160: $i,SV32: $i] :
      ( ( ( member @ ( ordered_pair @ ( ordered_pair @ SV32 @ SV160 ) @ SV213 ) @ ( rotate @ SV238 ) )
        = $false )
      | ( ( member @ ( ordered_pair @ ( ordered_pair @ SV160 @ SV213 ) @ SV32 ) @ SV238 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[935]) ).

thf(985,plain,
    ! [SV239: $i,SV214: $i,SV161: $i,SV33: $i] :
      ( ( ( member @ ( ordered_pair @ ( ordered_pair @ SV33 @ SV161 ) @ SV214 ) @ SV239 )
        = $false )
      | ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV214 @ SV33 ) @ SV161 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
          | ( member @ ( ordered_pair @ ( ordered_pair @ SV214 @ SV33 ) @ SV161 ) @ ( rotate @ SV239 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[936]) ).

thf(986,plain,
    ! [SV240: $i,SV215: $i,SV162: $i,SV35: $i] :
      ( ( ( member @ ( ordered_pair @ ( ordered_pair @ SV35 @ SV162 ) @ SV215 ) @ ( flip @ SV240 ) )
        = $false )
      | ( ( member @ ( ordered_pair @ ( ordered_pair @ SV162 @ SV35 ) @ SV215 ) @ SV240 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[937]) ).

thf(987,plain,
    ! [SV241: $i,SV216: $i,SV163: $i,SV36: $i] :
      ( ( ( member @ ( ordered_pair @ ( ordered_pair @ SV36 @ SV163 ) @ SV216 ) @ SV241 )
        = $false )
      | ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV163 @ SV36 ) @ SV216 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
          | ( member @ ( ordered_pair @ ( ordered_pair @ SV163 @ SV36 ) @ SV216 ) @ ( flip @ SV241 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[938]) ).

thf(988,plain,
    ! [SV168: $i,SV44: $i] :
      ( ( ( member @ ( ordered_pair @ SV44 @ SV168 ) @ ( cross_product @ universal_class @ universal_class ) )
        = $false )
      | ( ( member @ ( ordered_pair @ SV44 @ SV168 ) @ successor_relation )
        = $true )
      | ( ( ( successor @ SV44 )
          = SV168 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[939]) ).

thf(989,plain,
    ! [SV242: $i,SV219: $i,SV170: $i,SV54: $i] :
      ( ( ( member @ ( ordered_pair @ SV54 @ SV170 ) @ ( compose @ SV219 @ SV242 ) )
        = $false )
      | ( ( member @ SV170 @ ( image @ SV219 @ ( image @ SV242 @ ( singleton @ SV54 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[941]) ).

thf(990,plain,
    ! [SV243: $i,SV220: $i,SV171: $i,SV55: $i] :
      ( ( ( member @ SV55 @ ( image @ SV171 @ ( image @ SV220 @ ( singleton @ SV243 ) ) ) )
        = $false )
      | ( ( ~ ( member @ ( ordered_pair @ SV243 @ SV55 ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( member @ ( ordered_pair @ SV243 @ SV55 ) @ ( compose @ SV171 @ SV220 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[942]) ).

thf(991,plain,
    ! [SV61: $i,SV244: $i] :
      ( ( ( member @ SV244 @ universal_class )
        = $false )
      | ( ( member @ ( image @ SV61 @ SV244 ) @ universal_class )
        = $true )
      | ( ( function @ SV61 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[944]) ).

thf(992,plain,
    ! [SV74: $i] :
      ( ( ( ~ ( subclass @ ( range_of @ SV74 ) @ ( domain_of @ ( domain_of @ SV74 ) ) ) )
        = $true )
      | ( ( operation @ SV74 )
        = $true )
      | ( ( ( cross_product @ ( domain_of @ ( domain_of @ SV74 ) ) @ ( domain_of @ ( domain_of @ SV74 ) ) )
          = ( domain_of @ SV74 ) )
        = $false )
      | ( ( function @ SV74 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[946]) ).

thf(993,plain,
    ! [SV78: $i,SV247: $i] :
      ( ( ( ( domain_of @ ( domain_of @ SV247 ) )
          = ( domain_of @ SV78 ) )
        = $false )
      | ( ( ! [SY476: $i] :
              ( ~ ( subclass @ ( range_of @ SV78 ) @ ( domain_of @ ( domain_of @ SY476 ) ) )
              | ( compatible @ SV78 @ SV247 @ SY476 ) ) )
        = $true )
      | ( ( function @ SV78 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[950]) ).

thf(994,plain,
    ! [SV82: $i,SV225: $i,SV178: $i,SV271: $i] :
      ( ( ( ! [SY485: $i] :
              ( ~ ( member @ ( ordered_pair @ SV271 @ SY485 ) @ ( domain_of @ SV178 ) )
              | ( ( apply @ SV225 @ ( ordered_pair @ ( apply @ SV82 @ SV271 ) @ ( apply @ SV82 @ SY485 ) ) )
                = ( apply @ SV82 @ ( apply @ SV178 @ ( ordered_pair @ SV271 @ SY485 ) ) ) ) ) )
        = $true )
      | ( ( homomorphism @ SV82 @ SV178 @ SV225 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[954]) ).

thf(995,plain,
    ! [SV83: $i,SV249: $i] :
      ( ( ( operation @ SV249 )
        = $false )
      | ( ( ! [SY477: $i] :
              ( ~ ( compatible @ SY477 @ SV83 @ SV249 )
              | ( homomorphism @ SY477 @ SV83 @ SV249 )
              | ( member @ ( ordered_pair @ ( not_homomorphism1 @ SY477 @ SV83 @ SV249 ) @ ( not_homomorphism2 @ SY477 @ SV83 @ SV249 ) ) @ ( domain_of @ SV83 ) ) ) )
        = $true )
      | ( ( operation @ SV83 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[955]) ).

thf(996,plain,
    ! [SV84: $i,SV250: $i] :
      ( ( ( operation @ SV250 )
        = $false )
      | ( ( ! [SY478: $i] :
              ( ~ ( compatible @ SY478 @ SV84 @ SV250 )
              | ( ( apply @ SV250 @ ( ordered_pair @ ( apply @ SY478 @ ( not_homomorphism1 @ SY478 @ SV84 @ SV250 ) ) @ ( apply @ SY478 @ ( not_homomorphism2 @ SY478 @ SV84 @ SV250 ) ) ) )
               != ( apply @ SY478 @ ( apply @ SV84 @ ( ordered_pair @ ( not_homomorphism1 @ SY478 @ SV84 @ SV250 ) @ ( not_homomorphism2 @ SY478 @ SV84 @ SV250 ) ) ) ) )
              | ( homomorphism @ SY478 @ SV84 @ SV250 ) ) )
        = $true )
      | ( ( operation @ SV84 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[956]) ).

thf(997,plain,
    ! [SV263: $i,SV251: $i,SV179: $i,SV85: $i] :
      ( ( ( member @ ( ordered_pair @ SV85 @ SV179 ) @ ( cross_product @ SV251 @ SV263 ) )
        = $false )
      | ( ( member @ SV85 @ ( unordered_pair @ SV85 @ SV179 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[957]) ).

thf(998,plain,
    ! [SV264: $i,SV252: $i,SV180: $i,SV86: $i] :
      ( ( ( member @ ( ordered_pair @ SV86 @ SV180 ) @ ( cross_product @ SV252 @ SV264 ) )
        = $false )
      | ( ( member @ SV180 @ ( unordered_pair @ SV86 @ SV180 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[958]) ).

thf(999,plain,
    ! [SV265: $i,SV253: $i,SV181: $i,SV87: $i] :
      ( ( ( member @ ( ordered_pair @ SV87 @ SV181 ) @ ( cross_product @ SV253 @ SV265 ) )
        = $false )
      | ( ( member @ SV87 @ universal_class )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[959]) ).

thf(1000,plain,
    ! [SV266: $i,SV254: $i,SV182: $i,SV88: $i] :
      ( ( ( member @ ( ordered_pair @ SV88 @ SV182 ) @ ( cross_product @ SV254 @ SV266 ) )
        = $false )
      | ( ( member @ SV182 @ universal_class )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[960]) ).

thf(1001,plain,
    ! [SV90: $i,SV267: $i,SV183: $i] :
      ( ( ( ~ ( subclass @ SV183 @ SV267 ) )
        = $true )
      | ( ( subclass @ SV90 @ SV267 )
        = $true )
      | ( ( subclass @ SV90 @ SV183 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[961]) ).

thf(1002,plain,
    ! [SV94: $i,SV187: $i] :
      ( ( ( member @ ( not_subclass_element @ SV187 @ SV94 ) @ SV94 )
        = $false )
      | ( ( SV94 = SV187 )
        = $true )
      | ( ( member @ ( not_subclass_element @ SV94 @ SV187 ) @ SV187 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[964]) ).

thf(1003,plain,
    ! [SV106: $i,SV228: $i,SV193: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV193 @ SV228 ) @ ( cross_product @ universal_class @ universal_class ) ) )
        = $true )
      | ( ( SV193 = SV228 )
        = $true )
      | ( ( ( unordered_pair @ SV106 @ SV193 )
          = ( unordered_pair @ SV106 @ SV228 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[965]) ).

thf(1004,plain,
    ! [SV194: $i,SV229: $i,SV107: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV107 @ SV229 ) @ ( cross_product @ universal_class @ universal_class ) ) )
        = $true )
      | ( ( SV107 = SV229 )
        = $true )
      | ( ( ( unordered_pair @ SV107 @ SV194 )
          = ( unordered_pair @ SV229 @ SV194 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[966]) ).

thf(1005,plain,
    ! [SV268: $i,SV257: $i,SV195: $i,SV110: $i] :
      ( ( ( member @ ( ordered_pair @ SV110 @ SV195 ) @ ( cross_product @ SV257 @ SV268 ) )
        = $false )
      | ( ( ( unordered_pair @ SV110 @ SV195 )
         != null_class )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[969]) ).

thf(1006,plain,
    ! [SV111: $i,SV196: $i,SV269: $i] :
      ( ( ( ~ ( member @ SV269 @ SV196 ) )
        = $true )
      | ( ( subclass @ ( unordered_pair @ SV111 @ SV269 ) @ SV196 )
        = $true )
      | ( ( member @ SV111 @ SV196 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[970]) ).

thf(1007,plain,
    ! [SV199: $i,SV118: $i] :
      ( ( ( member @ SV118 @ universal_class )
        = $false )
      | ( ( SV118 = SV199 )
        = $true )
      | ( ( ( singleton @ SV118 )
          = ( singleton @ SV199 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[971]) ).

thf(1008,plain,
    ! [SV119: $i,SV200: $i] :
      ( ( ( member @ SV200 @ universal_class )
        = $false )
      | ( ( SV119 = SV200 )
        = $true )
      | ( ( ( singleton @ SV119 )
          = ( singleton @ SV200 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[972]) ).

thf(1009,plain,
    ! [SV201: $i,SV120: $i,SV230: $i] :
      ( ( ( ~ ( member @ SV230 @ universal_class ) )
        = $true )
      | ( ( ( SV230 = SV120 )
          | ( SV230 = SV201 ) )
        = $true )
      | ( ( ( unordered_pair @ SV120 @ SV201 )
          = ( singleton @ SV230 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[973]) ).

thf(1010,plain,
    ! [SV129: $i,SV258: $i] :
      ( ( ( member @ SV258 @ SV129 )
        = $false )
      | ( ( ( member_of @ SV129 )
          = SV258 )
        = $true )
      | ( ( ( singleton @ ( member_of @ SV129 ) )
          = SV129 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[974]) ).

thf(1011,plain,
    ! [SV137: $i,SV1: $i,SV259: $i] :
      ( ( ( member @ SV259 @ SV1 )
        = $false )
      | ( ( member @ SV259 @ SV137 )
        = $true )
      | ( ( subclass @ SV1 @ SV137 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[976]) ).

thf(1012,plain,
    ! [SV148: $i,SV16: $i,SV270: $i,SV261: $i] :
      ( ( ( ~ ( member @ SV261 @ SV270 ) )
        = $true )
      | ( ( member @ ( ordered_pair @ SV16 @ SV261 ) @ ( cross_product @ SV148 @ SV270 ) )
        = $true )
      | ( ( member @ SV16 @ SV148 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[981]) ).

thf(1013,plain,
    ! [SV153: $i,SV262: $i,SV22: $i] :
      ( ( ( member @ SV22 @ SV262 )
        = $false )
      | ( ( member @ SV22 @ ( intersection @ SV153 @ SV262 ) )
        = $true )
      | ( ( member @ SV22 @ SV153 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[983]) ).

thf(1014,plain,
    ! [SV239: $i,SV161: $i,SV33: $i,SV214: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV214 @ SV33 ) @ SV161 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) ) )
        = $true )
      | ( ( member @ ( ordered_pair @ ( ordered_pair @ SV214 @ SV33 ) @ SV161 ) @ ( rotate @ SV239 ) )
        = $true )
      | ( ( member @ ( ordered_pair @ ( ordered_pair @ SV33 @ SV161 ) @ SV214 ) @ SV239 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[985]) ).

thf(1015,plain,
    ! [SV241: $i,SV216: $i,SV36: $i,SV163: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV163 @ SV36 ) @ SV216 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) ) )
        = $true )
      | ( ( member @ ( ordered_pair @ ( ordered_pair @ SV163 @ SV36 ) @ SV216 ) @ ( flip @ SV241 ) )
        = $true )
      | ( ( member @ ( ordered_pair @ ( ordered_pair @ SV36 @ SV163 ) @ SV216 ) @ SV241 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[987]) ).

thf(1016,plain,
    ! [SV220: $i,SV171: $i,SV55: $i,SV243: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV243 @ SV55 ) @ ( cross_product @ universal_class @ universal_class ) ) )
        = $true )
      | ( ( member @ ( ordered_pair @ SV243 @ SV55 ) @ ( compose @ SV171 @ SV220 ) )
        = $true )
      | ( ( member @ SV55 @ ( image @ SV171 @ ( image @ SV220 @ ( singleton @ SV243 ) ) ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[990]) ).

thf(1017,plain,
    ! [SV74: $i] :
      ( ( ( subclass @ ( range_of @ SV74 ) @ ( domain_of @ ( domain_of @ SV74 ) ) )
        = $false )
      | ( ( operation @ SV74 )
        = $true )
      | ( ( ( cross_product @ ( domain_of @ ( domain_of @ SV74 ) ) @ ( domain_of @ ( domain_of @ SV74 ) ) )
          = ( domain_of @ SV74 ) )
        = $false )
      | ( ( function @ SV74 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[992]) ).

thf(1018,plain,
    ! [SV247: $i,SV272: $i,SV78: $i] :
      ( ( ( ~ ( subclass @ ( range_of @ SV78 ) @ ( domain_of @ ( domain_of @ SV272 ) ) )
          | ( compatible @ SV78 @ SV247 @ SV272 ) )
        = $true )
      | ( ( ( domain_of @ ( domain_of @ SV247 ) )
          = ( domain_of @ SV78 ) )
        = $false )
      | ( ( function @ SV78 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[993]) ).

thf(1019,plain,
    ! [SV82: $i,SV225: $i,SV178: $i,SV273: $i,SV271: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV271 @ SV273 ) @ ( domain_of @ SV178 ) )
          | ( ( apply @ SV225 @ ( ordered_pair @ ( apply @ SV82 @ SV271 ) @ ( apply @ SV82 @ SV273 ) ) )
            = ( apply @ SV82 @ ( apply @ SV178 @ ( ordered_pair @ SV271 @ SV273 ) ) ) ) )
        = $true )
      | ( ( homomorphism @ SV82 @ SV178 @ SV225 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[994]) ).

thf(1020,plain,
    ! [SV249: $i,SV83: $i,SV274: $i] :
      ( ( ( ~ ( compatible @ SV274 @ SV83 @ SV249 )
          | ( homomorphism @ SV274 @ SV83 @ SV249 )
          | ( member @ ( ordered_pair @ ( not_homomorphism1 @ SV274 @ SV83 @ SV249 ) @ ( not_homomorphism2 @ SV274 @ SV83 @ SV249 ) ) @ ( domain_of @ SV83 ) ) )
        = $true )
      | ( ( operation @ SV249 )
        = $false )
      | ( ( operation @ SV83 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[995]) ).

thf(1021,plain,
    ! [SV250: $i,SV84: $i,SV275: $i] :
      ( ( ( ~ ( compatible @ SV275 @ SV84 @ SV250 )
          | ( ( apply @ SV250 @ ( ordered_pair @ ( apply @ SV275 @ ( not_homomorphism1 @ SV275 @ SV84 @ SV250 ) ) @ ( apply @ SV275 @ ( not_homomorphism2 @ SV275 @ SV84 @ SV250 ) ) ) )
           != ( apply @ SV275 @ ( apply @ SV84 @ ( ordered_pair @ ( not_homomorphism1 @ SV275 @ SV84 @ SV250 ) @ ( not_homomorphism2 @ SV275 @ SV84 @ SV250 ) ) ) ) )
          | ( homomorphism @ SV275 @ SV84 @ SV250 ) )
        = $true )
      | ( ( operation @ SV250 )
        = $false )
      | ( ( operation @ SV84 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[996]) ).

thf(1022,plain,
    ! [SV90: $i,SV267: $i,SV183: $i] :
      ( ( ( subclass @ SV183 @ SV267 )
        = $false )
      | ( ( subclass @ SV90 @ SV267 )
        = $true )
      | ( ( subclass @ SV90 @ SV183 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1001]) ).

thf(1023,plain,
    ! [SV106: $i,SV228: $i,SV193: $i] :
      ( ( ( member @ ( ordered_pair @ SV193 @ SV228 ) @ ( cross_product @ universal_class @ universal_class ) )
        = $false )
      | ( ( SV193 = SV228 )
        = $true )
      | ( ( ( unordered_pair @ SV106 @ SV193 )
          = ( unordered_pair @ SV106 @ SV228 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1003]) ).

thf(1024,plain,
    ! [SV194: $i,SV229: $i,SV107: $i] :
      ( ( ( member @ ( ordered_pair @ SV107 @ SV229 ) @ ( cross_product @ universal_class @ universal_class ) )
        = $false )
      | ( ( SV107 = SV229 )
        = $true )
      | ( ( ( unordered_pair @ SV107 @ SV194 )
          = ( unordered_pair @ SV229 @ SV194 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1004]) ).

thf(1025,plain,
    ! [SV268: $i,SV257: $i,SV195: $i,SV110: $i] :
      ( ( ( ( unordered_pair @ SV110 @ SV195 )
          = null_class )
        = $false )
      | ( ( member @ ( ordered_pair @ SV110 @ SV195 ) @ ( cross_product @ SV257 @ SV268 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1005]) ).

thf(1026,plain,
    ! [SV111: $i,SV196: $i,SV269: $i] :
      ( ( ( member @ SV269 @ SV196 )
        = $false )
      | ( ( subclass @ ( unordered_pair @ SV111 @ SV269 ) @ SV196 )
        = $true )
      | ( ( member @ SV111 @ SV196 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1006]) ).

thf(1027,plain,
    ! [SV201: $i,SV120: $i,SV230: $i] :
      ( ( ( member @ SV230 @ universal_class )
        = $false )
      | ( ( ( SV230 = SV120 )
          | ( SV230 = SV201 ) )
        = $true )
      | ( ( ( unordered_pair @ SV120 @ SV201 )
          = ( singleton @ SV230 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1009]) ).

thf(1028,plain,
    ! [SV148: $i,SV16: $i,SV270: $i,SV261: $i] :
      ( ( ( member @ SV261 @ SV270 )
        = $false )
      | ( ( member @ ( ordered_pair @ SV16 @ SV261 ) @ ( cross_product @ SV148 @ SV270 ) )
        = $true )
      | ( ( member @ SV16 @ SV148 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1012]) ).

thf(1029,plain,
    ! [SV239: $i,SV161: $i,SV33: $i,SV214: $i] :
      ( ( ( member @ ( ordered_pair @ ( ordered_pair @ SV214 @ SV33 ) @ SV161 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
        = $false )
      | ( ( member @ ( ordered_pair @ ( ordered_pair @ SV214 @ SV33 ) @ SV161 ) @ ( rotate @ SV239 ) )
        = $true )
      | ( ( member @ ( ordered_pair @ ( ordered_pair @ SV33 @ SV161 ) @ SV214 ) @ SV239 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1014]) ).

thf(1030,plain,
    ! [SV241: $i,SV216: $i,SV36: $i,SV163: $i] :
      ( ( ( member @ ( ordered_pair @ ( ordered_pair @ SV163 @ SV36 ) @ SV216 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
        = $false )
      | ( ( member @ ( ordered_pair @ ( ordered_pair @ SV163 @ SV36 ) @ SV216 ) @ ( flip @ SV241 ) )
        = $true )
      | ( ( member @ ( ordered_pair @ ( ordered_pair @ SV36 @ SV163 ) @ SV216 ) @ SV241 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1015]) ).

thf(1031,plain,
    ! [SV220: $i,SV171: $i,SV55: $i,SV243: $i] :
      ( ( ( member @ ( ordered_pair @ SV243 @ SV55 ) @ ( cross_product @ universal_class @ universal_class ) )
        = $false )
      | ( ( member @ ( ordered_pair @ SV243 @ SV55 ) @ ( compose @ SV171 @ SV220 ) )
        = $true )
      | ( ( member @ SV55 @ ( image @ SV171 @ ( image @ SV220 @ ( singleton @ SV243 ) ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1016]) ).

thf(1032,plain,
    ! [SV247: $i,SV272: $i,SV78: $i] :
      ( ( ( ~ ( subclass @ ( range_of @ SV78 ) @ ( domain_of @ ( domain_of @ SV272 ) ) ) )
        = $true )
      | ( ( compatible @ SV78 @ SV247 @ SV272 )
        = $true )
      | ( ( ( domain_of @ ( domain_of @ SV247 ) )
          = ( domain_of @ SV78 ) )
        = $false )
      | ( ( function @ SV78 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1018]) ).

thf(1033,plain,
    ! [SV82: $i,SV225: $i,SV178: $i,SV273: $i,SV271: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV271 @ SV273 ) @ ( domain_of @ SV178 ) ) )
        = $true )
      | ( ( ( apply @ SV225 @ ( ordered_pair @ ( apply @ SV82 @ SV271 ) @ ( apply @ SV82 @ SV273 ) ) )
          = ( apply @ SV82 @ ( apply @ SV178 @ ( ordered_pair @ SV271 @ SV273 ) ) ) )
        = $true )
      | ( ( homomorphism @ SV82 @ SV178 @ SV225 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1019]) ).

thf(1034,plain,
    ! [SV249: $i,SV83: $i,SV274: $i] :
      ( ( ( ~ ( compatible @ SV274 @ SV83 @ SV249 ) )
        = $true )
      | ( ( ( homomorphism @ SV274 @ SV83 @ SV249 )
          | ( member @ ( ordered_pair @ ( not_homomorphism1 @ SV274 @ SV83 @ SV249 ) @ ( not_homomorphism2 @ SV274 @ SV83 @ SV249 ) ) @ ( domain_of @ SV83 ) ) )
        = $true )
      | ( ( operation @ SV249 )
        = $false )
      | ( ( operation @ SV83 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1020]) ).

thf(1035,plain,
    ! [SV250: $i,SV84: $i,SV275: $i] :
      ( ( ( ~ ( compatible @ SV275 @ SV84 @ SV250 ) )
        = $true )
      | ( ( ( ( apply @ SV250 @ ( ordered_pair @ ( apply @ SV275 @ ( not_homomorphism1 @ SV275 @ SV84 @ SV250 ) ) @ ( apply @ SV275 @ ( not_homomorphism2 @ SV275 @ SV84 @ SV250 ) ) ) )
           != ( apply @ SV275 @ ( apply @ SV84 @ ( ordered_pair @ ( not_homomorphism1 @ SV275 @ SV84 @ SV250 ) @ ( not_homomorphism2 @ SV275 @ SV84 @ SV250 ) ) ) ) )
          | ( homomorphism @ SV275 @ SV84 @ SV250 ) )
        = $true )
      | ( ( operation @ SV250 )
        = $false )
      | ( ( operation @ SV84 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1021]) ).

thf(1036,plain,
    ! [SV201: $i,SV120: $i,SV230: $i] :
      ( ( ( SV230 = SV120 )
        = $true )
      | ( ( SV230 = SV201 )
        = $true )
      | ( ( member @ SV230 @ universal_class )
        = $false )
      | ( ( ( unordered_pair @ SV120 @ SV201 )
          = ( singleton @ SV230 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1027]) ).

thf(1037,plain,
    ! [SV247: $i,SV272: $i,SV78: $i] :
      ( ( ( subclass @ ( range_of @ SV78 ) @ ( domain_of @ ( domain_of @ SV272 ) ) )
        = $false )
      | ( ( compatible @ SV78 @ SV247 @ SV272 )
        = $true )
      | ( ( ( domain_of @ ( domain_of @ SV247 ) )
          = ( domain_of @ SV78 ) )
        = $false )
      | ( ( function @ SV78 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1032]) ).

thf(1038,plain,
    ! [SV82: $i,SV225: $i,SV178: $i,SV273: $i,SV271: $i] :
      ( ( ( member @ ( ordered_pair @ SV271 @ SV273 ) @ ( domain_of @ SV178 ) )
        = $false )
      | ( ( ( apply @ SV225 @ ( ordered_pair @ ( apply @ SV82 @ SV271 ) @ ( apply @ SV82 @ SV273 ) ) )
          = ( apply @ SV82 @ ( apply @ SV178 @ ( ordered_pair @ SV271 @ SV273 ) ) ) )
        = $true )
      | ( ( homomorphism @ SV82 @ SV178 @ SV225 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1033]) ).

thf(1039,plain,
    ! [SV249: $i,SV83: $i,SV274: $i] :
      ( ( ( compatible @ SV274 @ SV83 @ SV249 )
        = $false )
      | ( ( ( homomorphism @ SV274 @ SV83 @ SV249 )
          | ( member @ ( ordered_pair @ ( not_homomorphism1 @ SV274 @ SV83 @ SV249 ) @ ( not_homomorphism2 @ SV274 @ SV83 @ SV249 ) ) @ ( domain_of @ SV83 ) ) )
        = $true )
      | ( ( operation @ SV249 )
        = $false )
      | ( ( operation @ SV83 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1034]) ).

thf(1040,plain,
    ! [SV250: $i,SV84: $i,SV275: $i] :
      ( ( ( compatible @ SV275 @ SV84 @ SV250 )
        = $false )
      | ( ( ( ( apply @ SV250 @ ( ordered_pair @ ( apply @ SV275 @ ( not_homomorphism1 @ SV275 @ SV84 @ SV250 ) ) @ ( apply @ SV275 @ ( not_homomorphism2 @ SV275 @ SV84 @ SV250 ) ) ) )
           != ( apply @ SV275 @ ( apply @ SV84 @ ( ordered_pair @ ( not_homomorphism1 @ SV275 @ SV84 @ SV250 ) @ ( not_homomorphism2 @ SV275 @ SV84 @ SV250 ) ) ) ) )
          | ( homomorphism @ SV275 @ SV84 @ SV250 ) )
        = $true )
      | ( ( operation @ SV250 )
        = $false )
      | ( ( operation @ SV84 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1035]) ).

thf(1041,plain,
    ! [SV249: $i,SV83: $i,SV274: $i] :
      ( ( ( homomorphism @ SV274 @ SV83 @ SV249 )
        = $true )
      | ( ( member @ ( ordered_pair @ ( not_homomorphism1 @ SV274 @ SV83 @ SV249 ) @ ( not_homomorphism2 @ SV274 @ SV83 @ SV249 ) ) @ ( domain_of @ SV83 ) )
        = $true )
      | ( ( compatible @ SV274 @ SV83 @ SV249 )
        = $false )
      | ( ( operation @ SV249 )
        = $false )
      | ( ( operation @ SV83 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1039]) ).

thf(1042,plain,
    ! [SV84: $i,SV275: $i,SV250: $i] :
      ( ( ( ( apply @ SV250 @ ( ordered_pair @ ( apply @ SV275 @ ( not_homomorphism1 @ SV275 @ SV84 @ SV250 ) ) @ ( apply @ SV275 @ ( not_homomorphism2 @ SV275 @ SV84 @ SV250 ) ) ) )
         != ( apply @ SV275 @ ( apply @ SV84 @ ( ordered_pair @ ( not_homomorphism1 @ SV275 @ SV84 @ SV250 ) @ ( not_homomorphism2 @ SV275 @ SV84 @ SV250 ) ) ) ) )
        = $true )
      | ( ( homomorphism @ SV275 @ SV84 @ SV250 )
        = $true )
      | ( ( compatible @ SV275 @ SV84 @ SV250 )
        = $false )
      | ( ( operation @ SV250 )
        = $false )
      | ( ( operation @ SV84 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1040]) ).

thf(1043,plain,
    ! [SV84: $i,SV275: $i,SV250: $i] :
      ( ( ( ( apply @ SV250 @ ( ordered_pair @ ( apply @ SV275 @ ( not_homomorphism1 @ SV275 @ SV84 @ SV250 ) ) @ ( apply @ SV275 @ ( not_homomorphism2 @ SV275 @ SV84 @ SV250 ) ) ) )
          = ( apply @ SV275 @ ( apply @ SV84 @ ( ordered_pair @ ( not_homomorphism1 @ SV275 @ SV84 @ SV250 ) @ ( not_homomorphism2 @ SV275 @ SV84 @ SV250 ) ) ) ) )
        = $false )
      | ( ( homomorphism @ SV275 @ SV84 @ SV250 )
        = $true )
      | ( ( compatible @ SV275 @ SV84 @ SV250 )
        = $false )
      | ( ( operation @ SV250 )
        = $false )
      | ( ( operation @ SV84 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1042]) ).

thf(1044,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[361,1043,1041,1038,1037,1036,1031,1030,1029,1028,1026,1025,1024,1023,1022,1017,1013,1011,1010,1008,1007,1002,1000,999,998,997,991,989,988,986,984,982,980,979,978,977,975,968,967,963,962,953,952,951,949,948,947,945,943,940,934,933,932,931,929,928,926,919,917,912,911,904,900,882,875,862,857,856,853,852,851,848,847,843,842,841,840,834,826,825,824,823,802,801,800,798,797,793,792,791,790,787,786,785,783,782,779,778,771,770,751,749,748,740,739,737,736,730,726,716,715,714,713,711,682,681,680,671,662,651,650,638,637,627,602,587,579,560,559,541,539,532,528,527,524,521,502,494,490,467,450,418,417,412,395,393,387]) ).

thf(1045,plain,
    $false,
    inference(solved_all_splits,[solved_all_splits(join,[])],[1044]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03  % Problem  : SET101-7 : TPTP v9.3.1. Bugfixed v2.1.0.
% 0.00/0.04  % Command  : leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox2/solver/bin/eprover /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.08/0.18  % Computer : n018.cluster.edu
% 0.08/0.18  % Model    : x86_64 x86_64
% 0.08/0.18  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.08/0.18  % Memory   : 8046.5625MB
% 0.08/0.18  % OS       : Linux 6.8.0-71-generic
% 0.08/0.18  % CPULimit : 300
% 0.08/0.18  % WCLimit  : 300
% 0.08/0.18  % DateTime : Tue Oct  6 14:33:07 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/sandbox2/solver/bin/eprover /export/starexec/sandbox2/benchmark/theBenchmark.p
% 11.32/2.21  .
% 11.32/2.21  
% 11.32/2.21   No.of.Axioms: 146
% 11.32/2.21  
% 11.32/2.21   Length.of.Defs: 0
% 11.32/2.21  
% 11.32/2.21   Contains.Choice.Funs: false
% 11.32/2.21  ...............................
% 11.32/2.21  
% 11.32/2.21  ********************************
% 11.32/2.21  *   All subproblems solved!    *
% 11.32/2.21  ********************************
% 11.32/2.21  % SZS status Unsatisfiable for /export/starexec/sandbox2/benchmark/theBenchmark.p : (rf:0,axioms:146,ps:3,u:6,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:true,expand_extuni:false,foatp:e,atp_timeout:299,atp_calls_frequency:5,ordering:none,proof_output:1,protocol_output:false,clause_count:1044,loop_count:0,foatp_calls:1,translation:fof_full)
% 11.32/2.21  
% 11.32/2.21  %**** Beginning of derivation protocol ****
% 11.32/2.21  % SZS output start CNFRefutation
% See solution above
% 11.32/2.23  
% 11.32/2.23  %**** End of derivation protocol ****
% 11.32/2.23  %**** no. of clauses in derivation: 1045 ****
% 11.32/2.23  %**** clause counter: 1044 ****
% 11.32/2.23  
% 11.32/2.23  % SZS status Unsatisfiable for /export/starexec/sandbox2/benchmark/theBenchmark.p : (rf:0,axioms:146,ps:3,u:6,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:true,expand_extuni:false,foatp:e,atp_timeout:299,atp_calls_frequency:5,ordering:none,proof_output:1,protocol_output:false,clause_count:1044,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------