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

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%------------------------------------------------------------------------------
% File     : LEO-II---2.3.1
% Problem  : SET020-7 : 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/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p

% Computer : n002.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 10:38:57 AM UTC 2026

% Result   : Unsatisfiable 145.95s 24.87s
% Output   : CNFRefutation 145.95s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   16
%            Number of leaves      :  160
% Syntax   : Number of formulae    : 1104 ( 696 unt;   0 typ;   0 def)
%            Number of atoms       : 5176 (2074 equ;   0 cnn)
%            Maximal formula atoms :    5 (   4 avg)
%            Number of connectives : 10831 ( 988   ~;1398   |;   0   &;8445   @)
%                                         (   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   : 2386 (   0   ^;2386   !;   0   ?;2386   :)

% 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_u,type,
    u: $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_v,type,
    v: $i ).

thf(1,axiom,
    ! [X: $i] :
      ( ( ( ordered_pair @ ( first @ X ) @ ( second @ X ) )
        = X )
      | ( ( second @ X )
        = X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',existence_of_1st_and_2nd_5) ).

thf(2,axiom,
    ! [X: $i] :
      ( ( ( ordered_pair @ ( first @ X ) @ ( second @ X ) )
        = X )
      | ( ( first @ X )
        = X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',existence_of_1st_and_2nd_4) ).

thf(3,axiom,
    ! [X: $i] :
      ( ( member @ ( ordered_pair @ ( first @ X ) @ ( second @ X ) ) @ ( cross_product @ universal_class @ universal_class ) )
      | ( ( second @ X )
        = X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',existence_of_1st_and_2nd_3) ).

thf(4,axiom,
    ! [X: $i] :
      ( ( member @ ( ordered_pair @ ( first @ X ) @ ( second @ X ) ) @ ( cross_product @ universal_class @ universal_class ) )
      | ( ( first @ X )
        = X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',existence_of_1st_and_2nd_2) ).

thf(5,axiom,
    ! [Y: $i,Z: $i] :
      ( ~ ( member @ ( ordered_pair @ Y @ Z ) @ ( cross_product @ universal_class @ universal_class ) )
      | ( member @ ( ordered_pair @ ( first @ ( ordered_pair @ Y @ Z ) ) @ ( second @ ( ordered_pair @ Y @ Z ) ) ) @ ( cross_product @ universal_class @ universal_class ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',existence_of_1st_and_2nd_1) ).

thf(6,axiom,
    ! [W: $i,X: $i,Y: $i,Z: $i] :
      ( ( ( ordered_pair @ W @ X )
       != ( ordered_pair @ Y @ Z ) )
      | ~ ( member @ X @ universal_class )
      | ( X = Z ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ordered_pair_determines_components2) ).

thf(7,axiom,
    ! [W: $i,X: $i,Y: $i,Z: $i] :
      ( ( ( ordered_pair @ W @ X )
       != ( ordered_pair @ Y @ Z ) )
      | ~ ( member @ W @ universal_class )
      | ( W = Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ordered_pair_determines_components1) ).

thf(8,axiom,
    ! [X: $i,Y: $i] :
      ( ( ( unordered_pair @ null_class @ ( singleton @ null_class ) )
        = ( ordered_pair @ X @ Y ) )
      | ( member @ X @ universal_class )
      | ( member @ Y @ universal_class ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',property_3_of_ordered_pair) ).

thf(9,axiom,
    ! [Y: $i,X: $i] :
      ( ~ ( member @ Y @ universal_class )
      | ( ( unordered_pair @ null_class @ ( singleton @ ( singleton @ Y ) ) )
        = ( ordered_pair @ X @ Y ) )
      | ( member @ X @ universal_class ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',property_2_of_ordered_pair) ).

thf(10,axiom,
    ! [X: $i,Y: $i] :
      ( ( ( unordered_pair @ ( singleton @ X ) @ ( unordered_pair @ X @ null_class ) )
        = ( ordered_pair @ X @ Y ) )
      | ( member @ Y @ universal_class ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',property_1_of_ordered_pair) ).

thf(11,axiom,
    ! [X: $i,Y: $i] : ( member @ ( unordered_pair @ X @ ( singleton @ Y ) ) @ ( ordered_pair @ X @ Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',unordered_pair_member_of_ordered_pair) ).

thf(12,axiom,
    ! [X: $i,Y: $i] : ( member @ ( singleton @ X ) @ ( ordered_pair @ X @ Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',singleton_member_of_ordered_pair) ).

thf(13,axiom,
    ! [X: $i,Y: $i] : ( member @ ( ordered_pair @ X @ Y ) @ universal_class ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ordered_pair_is_set) ).

thf(14,axiom,
    ! [X: $i,Y: $i] :
      ( ( unordered_pair @ X @ Y )
      = ( union @ ( singleton @ X ) @ ( singleton @ Y ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',unordered_pairs_and_singletons) ).

thf(15,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/sandbox/benchmark/theBenchmark.p',corollary_1_to_number_of_elements_in_class) ).

thf(16,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/sandbox/benchmark/theBenchmark.p',corollary_2_to_number_of_elements_in_class) ).

thf(17,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/sandbox/benchmark/theBenchmark.p',number_of_elements_in_class) ).

thf(18,axiom,
    ! [X: $i,Y: $i] :
      ( ~ ( subclass @ X @ ( singleton @ Y ) )
      | ( X = null_class )
      | ( ( singleton @ Y )
        = X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',two_subsets_of_singleton) ).

thf(19,axiom,
    ! [X: $i,Y: $i] :
      ( ~ ( member @ X @ Y )
      | ( subclass @ ( singleton @ X ) @ Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',property_of_singletons2) ).

thf(20,axiom,
    ! [X: $i,Y: $i] :
      ( ( ( singleton @ ( member_of @ X ) )
       != X )
      | ~ ( member @ Y @ X )
      | ( ( member_of @ X )
        = Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',property_of_singletons1) ).

thf(21,axiom,
    ! [X: $i] :
      ( ( ( singleton @ ( member_of @ X ) )
       != X )
      | ( member @ X @ universal_class ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',corollary_2_to_singletons_are_sets) ).

thf(22,axiom,
    ! [X: $i] :
      ( ( ( singleton @ ( member_of1 @ X ) )
        = X )
      | ( ( member_of @ X )
        = X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',member_of_non_singleton_unique2) ).

thf(23,axiom,
    ! [X: $i] :
      ( ( member @ ( member_of1 @ X ) @ universal_class )
      | ( ( member_of @ X )
        = X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',member_of_non_singleton_unique1) ).

thf(24,axiom,
    ! [U: $i] :
      ( ~ ( member @ U @ universal_class )
      | ( ( member_of @ ( singleton @ U ) )
        = U ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',member_of_singleton_is_unique) ).

thf(25,axiom,
    ! [X: $i] :
      ( ( ( singleton @ ( member_of @ X ) )
        = X )
      | ( ( member_of @ X )
        = X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',member_exists4) ).

thf(26,axiom,
    ! [X: $i] :
      ( ( member @ ( member_of @ X ) @ universal_class )
      | ( ( member_of @ X )
        = X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',member_exists3) ).

thf(27,axiom,
    ! [Y: $i] :
      ( ~ ( member @ Y @ universal_class )
      | ( ( singleton @ ( member_of @ ( singleton @ Y ) ) )
        = ( singleton @ Y ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',member_exists2) ).

thf(28,axiom,
    ! [Y: $i] :
      ( ~ ( member @ Y @ universal_class )
      | ( member @ ( member_of @ ( singleton @ Y ) ) @ universal_class ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',member_exists1) ).

thf(29,axiom,
    ! [Y: $i,Z: $i,X: $i] :
      ( ( ( unordered_pair @ Y @ Z )
       != ( singleton @ X ) )
      | ~ ( member @ X @ universal_class )
      | ( X = Y )
      | ( X = Z ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',singleton_in_unordered_pair3) ).

thf(30,axiom,
    ! [X: $i,Y: $i] :
      ( ( ( singleton @ X )
       != ( singleton @ Y ) )
      | ~ ( member @ Y @ universal_class )
      | ( X = Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',singleton_identified_by_element2) ).

thf(31,axiom,
    ! [X: $i,Y: $i] :
      ( ( ( singleton @ X )
       != ( singleton @ Y ) )
      | ~ ( member @ X @ universal_class )
      | ( X = Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',singleton_identified_by_element1) ).

thf(32,axiom,
    ! [X: $i] :
      ( ( member @ X @ universal_class )
      | ( ( singleton @ X )
        = null_class ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',singleton_is_null_class) ).

thf(33,axiom,
    ! [Y: $i,X: $i] :
      ( ~ ( member @ Y @ ( singleton @ X ) )
      | ( Y = X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',only_member_in_singleton) ).

thf(34,axiom,
    member @ null_class @ ( singleton @ null_class ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',null_class_in_its_singleton) ).

thf(35,axiom,
    ! [X: $i] :
      ( ~ ( member @ X @ universal_class )
      | ( ( singleton @ X )
       != null_class ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',corollary_to_set_in_its_singleton) ).

thf(36,axiom,
    ! [X: $i] :
      ( ~ ( member @ X @ universal_class )
      | ( member @ X @ ( singleton @ X ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',set_in_its_singleton) ).

thf(37,axiom,
    ! [Y: $i,X: $i] : ( member @ ( singleton @ Y ) @ ( unordered_pair @ X @ ( singleton @ Y ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',corollary_1_to_singletons_are_sets) ).

thf(38,axiom,
    ! [X: $i] : ( member @ ( singleton @ X ) @ universal_class ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',singletons_are_sets) ).

thf(39,axiom,
    ! [X: $i,Z: $i,Y: $i] :
      ( ~ ( member @ X @ Z )
      | ~ ( member @ Y @ Z )
      | ( subclass @ ( unordered_pair @ X @ Y ) @ Z ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',unordered_pair_is_subset) ).

thf(40,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/sandbox/benchmark/theBenchmark.p',corollary_to_unordered_pair_axiom3) ).

thf(41,axiom,
    ! [Y: $i,X: $i] :
      ( ~ ( member @ Y @ universal_class )
      | ( ( unordered_pair @ X @ Y )
       != null_class ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',corollary_to_unordered_pair_axiom2) ).

thf(42,axiom,
    ! [X: $i,Y: $i] :
      ( ~ ( member @ X @ universal_class )
      | ( ( unordered_pair @ X @ Y )
       != null_class ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',corollary_to_unordered_pair_axiom1) ).

thf(43,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/sandbox/benchmark/theBenchmark.p',right_cancellation) ).

thf(44,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/sandbox/benchmark/theBenchmark.p',left_cancellation) ).

thf(45,axiom,
    ! [X: $i,Y: $i] :
      ( ( ( unordered_pair @ X @ Y )
        = null_class )
      | ( member @ X @ universal_class )
      | ( member @ Y @ universal_class ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',null_unordered_pair) ).

thf(46,axiom,
    ! [X: $i,Y: $i] :
      ( ( member @ X @ universal_class )
      | ( ( unordered_pair @ X @ Y )
        = ( singleton @ Y ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',unordered_pair_equals_singleton2) ).

thf(47,axiom,
    ! [Y: $i,X: $i] :
      ( ( member @ Y @ universal_class )
      | ( ( unordered_pair @ X @ Y )
        = ( singleton @ X ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',unordered_pair_equals_singleton1) ).

thf(48,axiom,
    ! [Y: $i,X: $i] : ( subclass @ ( singleton @ Y ) @ ( unordered_pair @ X @ Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',singleton_in_unordered_pair2) ).

thf(49,axiom,
    ! [X: $i,Y: $i] : ( subclass @ ( singleton @ X ) @ ( unordered_pair @ X @ Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',singleton_in_unordered_pair1) ).

thf(50,axiom,
    ! [X: $i,Y: $i] :
      ( ( unordered_pair @ X @ Y )
      = ( unordered_pair @ Y @ X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',commutativity_of_unordered_pair) ).

thf(51,axiom,
    member @ null_class @ universal_class,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',null_class_is_a_set) ).

thf(52,axiom,
    ! [Z: $i] :
      ( ( Z = null_class )
      | ( member @ ( not_subclass_element @ Z @ null_class ) @ Z ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',null_class_is_unique) ).

thf(53,axiom,
    ! [X: $i] :
      ( ~ ( subclass @ X @ null_class )
      | ( X = null_class ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',corollary_of_null_class_is_subclass) ).

thf(54,axiom,
    ! [X: $i] : ( subclass @ null_class @ X ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',null_class_is_subclass) ).

thf(55,axiom,
    ! [Z: $i] :
      ~ ( member @ Z @ null_class ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',existence_of_null_class) ).

thf(56,axiom,
    ! [Y: $i,X: $i] :
      ~ ( member @ Y @ ( intersection @ ( complement @ X ) @ X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',special_classes_lemma) ).

thf(57,axiom,
    ! [X: $i,Y: $i] :
      ( ~ ( member @ ( not_subclass_element @ X @ Y ) @ Y )
      | ~ ( member @ ( not_subclass_element @ Y @ X ) @ X )
      | ( X = Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',equality4) ).

thf(58,axiom,
    ! [Y: $i,X: $i] :
      ( ~ ( member @ ( not_subclass_element @ Y @ X ) @ X )
      | ( X = Y )
      | ( member @ ( not_subclass_element @ X @ Y ) @ X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',equality3) ).

thf(59,axiom,
    ! [X: $i,Y: $i] :
      ( ~ ( member @ ( not_subclass_element @ X @ Y ) @ Y )
      | ( X = Y )
      | ( member @ ( not_subclass_element @ Y @ X ) @ Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',equality2) ).

thf(60,axiom,
    ! [X: $i,Y: $i] :
      ( ( X = Y )
      | ( member @ ( not_subclass_element @ X @ Y ) @ X )
      | ( member @ ( not_subclass_element @ Y @ X ) @ Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',equality1) ).

thf(61,axiom,
    ! [X: $i,Y: $i,Z: $i] :
      ( ~ ( subclass @ X @ Y )
      | ~ ( subclass @ Y @ Z )
      | ( subclass @ X @ Z ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',transitivity_of_subclass) ).

thf(62,axiom,
    ! [X: $i] : ( subclass @ X @ X ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',subclass_is_reflexive) ).

thf(63,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/sandbox/benchmark/theBenchmark.p',corollary_2_to_cartesian_product) ).

thf(64,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/sandbox/benchmark/theBenchmark.p',corollary_1_to_cartesian_product) ).

thf(65,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/sandbox/benchmark/theBenchmark.p',corollary_2_to_unordered_pair) ).

thf(66,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/sandbox/benchmark/theBenchmark.p',corollary_1_to_unordered_pair) ).

thf(67,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/sandbox/benchmark/theBenchmark.p',homomorphism6) ).

thf(68,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/sandbox/benchmark/theBenchmark.p',homomorphism5) ).

thf(69,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/sandbox/benchmark/theBenchmark.p',homomorphism4) ).

thf(70,axiom,
    ! [Xh: $i,Xf1: $i,Xf2: $i] :
      ( ~ ( homomorphism @ Xh @ Xf1 @ Xf2 )
      | ( compatible @ Xh @ Xf1 @ Xf2 ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',homomorphism3) ).

thf(71,axiom,
    ! [Xh: $i,Xf1: $i,Xf2: $i] :
      ( ~ ( homomorphism @ Xh @ Xf1 @ Xf2 )
      | ( operation @ Xf2 ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',homomorphism2) ).

thf(72,axiom,
    ! [Xh: $i,Xf1: $i,Xf2: $i] :
      ( ~ ( homomorphism @ Xh @ Xf1 @ Xf2 )
      | ( operation @ Xf1 ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',homomorphism1) ).

thf(73,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/sandbox/benchmark/theBenchmark.p',compatible4) ).

thf(74,axiom,
    ! [Xh: $i,Xf1: $i,Xf2: $i] :
      ( ~ ( compatible @ Xh @ Xf1 @ Xf2 )
      | ( subclass @ ( range_of @ Xh ) @ ( domain_of @ ( domain_of @ Xf2 ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',compatible3) ).

thf(75,axiom,
    ! [Xh: $i,Xf1: $i,Xf2: $i] :
      ( ~ ( compatible @ Xh @ Xf1 @ Xf2 )
      | ( ( domain_of @ ( domain_of @ Xf1 ) )
        = ( domain_of @ Xh ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',compatible2) ).

thf(76,axiom,
    ! [Xh: $i,Xf1: $i,Xf2: $i] :
      ( ~ ( compatible @ Xh @ Xf1 @ Xf2 )
      | ( function @ Xh ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',compatible1) ).

thf(77,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/sandbox/benchmark/theBenchmark.p',operation4) ).

thf(78,axiom,
    ! [Xf: $i] :
      ( ~ ( operation @ Xf )
      | ( subclass @ ( range_of @ Xf ) @ ( domain_of @ ( domain_of @ Xf ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',operation3) ).

thf(79,axiom,
    ! [Xf: $i] :
      ( ~ ( operation @ Xf )
      | ( ( cross_product @ ( domain_of @ ( domain_of @ Xf ) ) @ ( domain_of @ ( domain_of @ Xf ) ) )
        = ( domain_of @ Xf ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',operation2) ).

thf(80,axiom,
    ! [Xf: $i] :
      ( ~ ( operation @ Xf )
      | ( function @ Xf ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',operation1) ).

thf(81,axiom,
    ! [X: $i] :
      ( ( intersection @ ( domain_of @ X ) @ ( diagonalise @ ( compose @ ( inverse @ element_relation ) @ X ) ) )
      = ( cantor @ X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',cantor_class) ).

thf(82,axiom,
    ! [Xr: $i] :
      ( ( complement @ ( domain_of @ ( intersection @ Xr @ identity_relation ) ) )
      = ( diagonalise @ Xr ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',diagonalisation) ).

thf(83,axiom,
    ( ( intersection @ ( inverse @ subset_relation ) @ subset_relation )
    = identity_relation ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',identity_relation) ).

thf(84,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/sandbox/benchmark/theBenchmark.p',subset_relation) ).

thf(85,axiom,
    ! [Xf: $i] :
      ( ~ ( function @ ( inverse @ Xf ) )
      | ~ ( function @ Xf )
      | ( one_to_one @ Xf ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',one_to_one3) ).

thf(86,axiom,
    ! [Xf: $i] :
      ( ~ ( one_to_one @ Xf )
      | ( function @ ( inverse @ Xf ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',one_to_one2) ).

thf(87,axiom,
    ! [Xf: $i] :
      ( ~ ( one_to_one @ Xf )
      | ( function @ Xf ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',one_to_one1) ).

thf(88,axiom,
    ! [Y: $i] :
      ( ~ ( member @ Y @ universal_class )
      | ( Y = null_class )
      | ( member @ ( apply @ choice @ Y ) @ Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',choice2) ).

thf(89,axiom,
    function @ choice,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',choice1) ).

thf(90,axiom,
    ! [Xf: $i,Y: $i] :
      ( ( sum_class @ ( image @ Xf @ ( singleton @ Y ) ) )
      = ( apply @ Xf @ Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',apply) ).

thf(91,axiom,
    ! [X: $i] :
      ( ( X = null_class )
      | ( ( intersection @ X @ ( regular @ X ) )
        = null_class ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',regularity2) ).

thf(92,axiom,
    ! [X: $i] :
      ( ( X = null_class )
      | ( member @ ( regular @ X ) @ X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',regularity1) ).

thf(93,axiom,
    ! [Xf: $i,X: $i] :
      ( ~ ( function @ Xf )
      | ~ ( member @ X @ universal_class )
      | ( member @ ( image @ Xf @ X ) @ universal_class ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',replacement) ).

thf(94,axiom,
    ! [Xf: $i] :
      ( ~ ( subclass @ Xf @ ( cross_product @ universal_class @ universal_class ) )
      | ~ ( subclass @ ( compose @ Xf @ ( inverse @ Xf ) ) @ identity_relation )
      | ( function @ Xf ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',function3) ).

thf(95,axiom,
    ! [Xf: $i] :
      ( ~ ( function @ Xf )
      | ( subclass @ ( compose @ Xf @ ( inverse @ Xf ) ) @ identity_relation ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',function2) ).

thf(96,axiom,
    ! [Xf: $i] :
      ( ~ ( function @ Xf )
      | ( subclass @ Xf @ ( cross_product @ universal_class @ universal_class ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',function1) ).

thf(97,axiom,
    ! [X: $i] :
      ( ~ ( subclass @ ( compose @ X @ ( inverse @ X ) ) @ identity_relation )
      | ( single_valued_class @ X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',single_valued_class2) ).

thf(98,axiom,
    ! [X: $i] :
      ( ~ ( single_valued_class @ X )
      | ( subclass @ ( compose @ X @ ( inverse @ X ) ) @ identity_relation ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',single_valued_class1) ).

thf(99,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/sandbox/benchmark/theBenchmark.p',compose3) ).

thf(100,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/sandbox/benchmark/theBenchmark.p',compose2) ).

thf(101,axiom,
    ! [Yr: $i,Xr: $i] : ( subclass @ ( compose @ Yr @ Xr ) @ ( cross_product @ universal_class @ universal_class ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',compose1) ).

thf(102,axiom,
    ! [U: $i] :
      ( ~ ( member @ U @ universal_class )
      | ( member @ ( power_class @ U ) @ universal_class ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',power_class2) ).

thf(103,axiom,
    ! [X: $i] :
      ( ( complement @ ( image @ element_relation @ ( complement @ X ) ) )
      = ( power_class @ X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',power_class_definition) ).

thf(104,axiom,
    ! [X: $i] :
      ( ~ ( member @ X @ universal_class )
      | ( member @ ( sum_class @ X ) @ universal_class ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',sum_class2) ).

thf(105,axiom,
    ! [X: $i] :
      ( ( domain_of @ ( restrict @ element_relation @ universal_class @ X ) )
      = ( sum_class @ X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',sum_class_definition) ).

thf(106,axiom,
    member @ omega @ universal_class,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',omega_in_universal) ).

thf(107,axiom,
    ! [Y: $i] :
      ( ~ ( inductive @ Y )
      | ( subclass @ omega @ Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',omega_is_inductive2) ).

thf(108,axiom,
    inductive @ omega,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',omega_is_inductive1) ).

thf(109,axiom,
    ! [X: $i] :
      ( ~ ( member @ null_class @ X )
      | ~ ( subclass @ ( image @ successor_relation @ X ) @ X )
      | ( inductive @ X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',inductive3) ).

thf(110,axiom,
    ! [X: $i] :
      ( ~ ( inductive @ X )
      | ( subclass @ ( image @ successor_relation @ X ) @ X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',inductive2) ).

thf(111,axiom,
    ! [X: $i] :
      ( ~ ( inductive @ X )
      | ( member @ null_class @ X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',inductive1) ).

thf(112,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/sandbox/benchmark/theBenchmark.p',successor_relation3) ).

thf(113,axiom,
    ! [X: $i,Y: $i] :
      ( ~ ( member @ ( ordered_pair @ X @ Y ) @ successor_relation )
      | ( ( successor @ X )
        = Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',successor_relation2) ).

thf(114,axiom,
    subclass @ successor_relation @ ( cross_product @ universal_class @ universal_class ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',successor_relation1) ).

thf(115,axiom,
    ! [X: $i] :
      ( ( union @ X @ ( singleton @ X ) )
      = ( successor @ X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',successor) ).

thf(116,axiom,
    ! [Xr: $i,X: $i] :
      ( ( range_of @ ( restrict @ Xr @ X @ universal_class ) )
      = ( image @ Xr @ X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',image) ).

thf(117,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/sandbox/benchmark/theBenchmark.p',range) ).

thf(118,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/sandbox/benchmark/theBenchmark.p',domain) ).

thf(119,axiom,
    ! [Z: $i] :
      ( ( domain_of @ ( inverse @ Z ) )
      = ( range_of @ Z ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',range_of) ).

thf(120,axiom,
    ! [Y: $i] :
      ( ( domain_of @ ( flip @ ( cross_product @ Y @ universal_class ) ) )
      = ( inverse @ Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',inverse) ).

thf(121,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/sandbox/benchmark/theBenchmark.p',flip3) ).

thf(122,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/sandbox/benchmark/theBenchmark.p',flip2) ).

thf(123,axiom,
    ! [X: $i] : ( subclass @ ( flip @ X ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',flip1) ).

thf(124,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/sandbox/benchmark/theBenchmark.p',rotate3) ).

thf(125,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/sandbox/benchmark/theBenchmark.p',rotate2) ).

thf(126,axiom,
    ! [X: $i] : ( subclass @ ( rotate @ X ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rotate1) ).

thf(127,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/sandbox/benchmark/theBenchmark.p',domain2) ).

thf(128,axiom,
    ! [X: $i,Z: $i] :
      ( ( ( restrict @ X @ ( singleton @ Z ) @ universal_class )
       != null_class )
      | ~ ( member @ Z @ ( domain_of @ X ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',domain1) ).

thf(129,axiom,
    ! [X: $i,Y: $i,Xr: $i] :
      ( ( intersection @ ( cross_product @ X @ Y ) @ Xr )
      = ( restrict @ Xr @ X @ Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',restriction2) ).

thf(130,axiom,
    ! [Xr: $i,X: $i,Y: $i] :
      ( ( intersection @ Xr @ ( cross_product @ X @ Y ) )
      = ( restrict @ Xr @ X @ Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',restriction1) ).

thf(131,axiom,
    ! [X: $i,Y: $i] :
      ( ( intersection @ ( complement @ ( intersection @ X @ Y ) ) @ ( complement @ ( intersection @ ( complement @ X ) @ ( complement @ Y ) ) ) )
      = ( symmetric_difference @ X @ Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',symmetric_difference) ).

thf(132,axiom,
    ! [X: $i,Y: $i] :
      ( ( complement @ ( intersection @ ( complement @ X ) @ ( complement @ Y ) ) )
      = ( union @ X @ Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',union) ).

thf(133,axiom,
    ! [Z: $i,X: $i] :
      ( ~ ( member @ Z @ universal_class )
      | ( member @ Z @ ( complement @ X ) )
      | ( member @ Z @ X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',complement2) ).

thf(134,axiom,
    ! [Z: $i,X: $i] :
      ( ~ ( member @ Z @ ( complement @ X ) )
      | ~ ( member @ Z @ X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',complement1) ).

thf(135,axiom,
    ! [Z: $i,X: $i,Y: $i] :
      ( ~ ( member @ Z @ X )
      | ~ ( member @ Z @ Y )
      | ( member @ Z @ ( intersection @ X @ Y ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',intersection3) ).

thf(136,axiom,
    ! [Z: $i,X: $i,Y: $i] :
      ( ~ ( member @ Z @ ( intersection @ X @ Y ) )
      | ( member @ Z @ Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',intersection2) ).

thf(137,axiom,
    ! [Z: $i,X: $i,Y: $i] :
      ( ~ ( member @ Z @ ( intersection @ X @ Y ) )
      | ( member @ Z @ X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',intersection1) ).

thf(138,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/sandbox/benchmark/theBenchmark.p',element_relation3) ).

thf(139,axiom,
    ! [X: $i,Y: $i] :
      ( ~ ( member @ ( ordered_pair @ X @ Y ) @ element_relation )
      | ( member @ X @ Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',element_relation2) ).

thf(140,axiom,
    subclass @ element_relation @ ( cross_product @ universal_class @ universal_class ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',element_relation1) ).

thf(141,axiom,
    ! [Z: $i,X: $i,Y: $i] :
      ( ~ ( member @ Z @ ( cross_product @ X @ Y ) )
      | ( ( ordered_pair @ ( first @ Z ) @ ( second @ Z ) )
        = Z ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',cartesian_product4) ).

thf(142,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/sandbox/benchmark/theBenchmark.p',cartesian_product3) ).

thf(143,axiom,
    ! [U: $i,V: $i,X: $i,Y: $i] :
      ( ~ ( member @ ( ordered_pair @ U @ V ) @ ( cross_product @ X @ Y ) )
      | ( member @ V @ Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',cartesian_product2) ).

thf(144,axiom,
    ! [U: $i,V: $i,X: $i,Y: $i] :
      ( ~ ( member @ ( ordered_pair @ U @ V ) @ ( cross_product @ X @ Y ) )
      | ( member @ U @ X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',cartesian_product1) ).

thf(145,axiom,
    ! [X: $i,Y: $i] :
      ( ( unordered_pair @ ( singleton @ X ) @ ( unordered_pair @ X @ ( singleton @ Y ) ) )
      = ( ordered_pair @ X @ Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ordered_pair) ).

thf(146,axiom,
    ! [X: $i] :
      ( ( unordered_pair @ X @ X )
      = ( singleton @ X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',singleton_set) ).

thf(147,axiom,
    ! [X: $i,Y: $i] : ( member @ ( unordered_pair @ X @ Y ) @ universal_class ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',unordered_pairs_in_universal) ).

thf(148,axiom,
    ! [Y: $i,X: $i] :
      ( ~ ( member @ Y @ universal_class )
      | ( member @ Y @ ( unordered_pair @ X @ Y ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',unordered_pair3) ).

thf(149,axiom,
    ! [X: $i,Y: $i] :
      ( ~ ( member @ X @ universal_class )
      | ( member @ X @ ( unordered_pair @ X @ Y ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',unordered_pair2) ).

thf(150,axiom,
    ! [U: $i,X: $i,Y: $i] :
      ( ~ ( member @ U @ ( unordered_pair @ X @ Y ) )
      | ( U = X )
      | ( U = Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',unordered_pair_member) ).

thf(151,axiom,
    ! [X: $i,Y: $i] :
      ( ~ ( subclass @ X @ Y )
      | ~ ( subclass @ Y @ X )
      | ( X = Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',subclass_implies_equal) ).

thf(152,axiom,
    ! [X: $i,Y: $i] :
      ( ( X != Y )
      | ( subclass @ Y @ X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',equal_implies_subclass2) ).

thf(153,axiom,
    ! [X: $i,Y: $i] :
      ( ( X != Y )
      | ( subclass @ X @ Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',equal_implies_subclass1) ).

thf(154,axiom,
    ! [X: $i] : ( subclass @ X @ universal_class ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',class_elements_are_sets) ).

thf(155,axiom,
    ! [X: $i,Y: $i] :
      ( ~ ( member @ ( not_subclass_element @ X @ Y ) @ Y )
      | ( subclass @ X @ Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',not_subclass_members2) ).

thf(156,axiom,
    ! [X: $i,Y: $i] :
      ( ( member @ ( not_subclass_element @ X @ Y ) @ X )
      | ( subclass @ X @ Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',not_subclass_members1) ).

thf(157,axiom,
    ! [X: $i,Y: $i,U: $i] :
      ( ~ ( subclass @ X @ Y )
      | ~ ( member @ U @ X )
      | ( member @ U @ Y ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',subclass_members) ).

thf(158,conjecture,
    $false,
    file('no conjecture given, we try to refute the axioms',dummy_conjecture) ).

thf(159,negated_conjecture,
    $false = $false,
    inference(negate_conjecture,[status(cth)],[158]) ).

thf(160,negated_conjecture,
    ( ( first @ ( ordered_pair @ u @ v ) )
   != u ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_unique_1st_and_2nd_in_pair_of_sets1_2) ).

thf(161,negated_conjecture,
    member @ ( ordered_pair @ u @ v ) @ ( cross_product @ universal_class @ universal_class ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_unique_1st_and_2nd_in_pair_of_sets1_1) ).

thf(162,plain,
    $false = $false,
    inference(unfold_def,[status(thm)],[159]) ).

thf(163,plain,
    ( ( ! [X: $i] :
          ( ( ( ordered_pair @ ( first @ X ) @ ( second @ X ) )
            = X )
          | ( ( second @ X )
            = X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1]) ).

thf(164,plain,
    ( ( ! [X: $i] :
          ( ( ( ordered_pair @ ( first @ X ) @ ( second @ X ) )
            = X )
          | ( ( first @ X )
            = X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2]) ).

thf(165,plain,
    ( ( ! [X: $i] :
          ( ( member @ ( ordered_pair @ ( first @ X ) @ ( second @ X ) ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( ( second @ X )
            = X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[3]) ).

thf(166,plain,
    ( ( ! [X: $i] :
          ( ( member @ ( ordered_pair @ ( first @ X ) @ ( second @ X ) ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( ( first @ X )
            = X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[4]) ).

thf(167,plain,
    ( ( ! [Y: $i,Z: $i] :
          ( ~ ( member @ ( ordered_pair @ Y @ Z ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( member @ ( ordered_pair @ ( first @ ( ordered_pair @ Y @ Z ) ) @ ( second @ ( ordered_pair @ Y @ Z ) ) ) @ ( cross_product @ universal_class @ universal_class ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[5]) ).

thf(168,plain,
    ( ( ! [W: $i,X: $i,Y: $i,Z: $i] :
          ( ( ( ordered_pair @ W @ X )
           != ( ordered_pair @ Y @ Z ) )
          | ~ ( member @ X @ universal_class )
          | ( X = Z ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[6]) ).

thf(169,plain,
    ( ( ! [W: $i,X: $i,Y: $i,Z: $i] :
          ( ( ( ordered_pair @ W @ X )
           != ( ordered_pair @ Y @ Z ) )
          | ~ ( member @ W @ universal_class )
          | ( W = Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[7]) ).

thf(170,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( ( unordered_pair @ null_class @ ( singleton @ null_class ) )
            = ( ordered_pair @ X @ Y ) )
          | ( member @ X @ universal_class )
          | ( member @ Y @ universal_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[8]) ).

thf(171,plain,
    ( ( ! [Y: $i,X: $i] :
          ( ~ ( member @ Y @ universal_class )
          | ( ( unordered_pair @ null_class @ ( singleton @ ( singleton @ Y ) ) )
            = ( ordered_pair @ X @ Y ) )
          | ( member @ X @ universal_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[9]) ).

thf(172,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( ( unordered_pair @ ( singleton @ X ) @ ( unordered_pair @ X @ null_class ) )
            = ( ordered_pair @ X @ Y ) )
          | ( member @ Y @ universal_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[10]) ).

thf(173,plain,
    ( ( ! [X: $i,Y: $i] : ( member @ ( unordered_pair @ X @ ( singleton @ Y ) ) @ ( ordered_pair @ X @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[11]) ).

thf(174,plain,
    ( ( ! [X: $i,Y: $i] : ( member @ ( singleton @ X ) @ ( ordered_pair @ X @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[12]) ).

thf(175,plain,
    ( ( ! [X: $i,Y: $i] : ( member @ ( ordered_pair @ X @ Y ) @ universal_class ) )
    = $true ),
    inference(unfold_def,[status(thm)],[13]) ).

thf(176,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( unordered_pair @ X @ Y )
          = ( union @ ( singleton @ X ) @ ( singleton @ Y ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[14]) ).

thf(177,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)],[15]) ).

thf(178,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)],[16]) ).

thf(179,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)],[17]) ).

thf(180,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( subclass @ X @ ( singleton @ Y ) )
          | ( X = null_class )
          | ( ( singleton @ Y )
            = X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[18]) ).

thf(181,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ X @ Y )
          | ( subclass @ ( singleton @ X ) @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[19]) ).

thf(182,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( ( singleton @ ( member_of @ X ) )
           != X )
          | ~ ( member @ Y @ X )
          | ( ( member_of @ X )
            = Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[20]) ).

thf(183,plain,
    ( ( ! [X: $i] :
          ( ( ( singleton @ ( member_of @ X ) )
           != X )
          | ( member @ X @ universal_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[21]) ).

thf(184,plain,
    ( ( ! [X: $i] :
          ( ( ( singleton @ ( member_of1 @ X ) )
            = X )
          | ( ( member_of @ X )
            = X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[22]) ).

thf(185,plain,
    ( ( ! [X: $i] :
          ( ( member @ ( member_of1 @ X ) @ universal_class )
          | ( ( member_of @ X )
            = X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[23]) ).

thf(186,plain,
    ( ( ! [U: $i] :
          ( ~ ( member @ U @ universal_class )
          | ( ( member_of @ ( singleton @ U ) )
            = U ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[24]) ).

thf(187,plain,
    ( ( ! [X: $i] :
          ( ( ( singleton @ ( member_of @ X ) )
            = X )
          | ( ( member_of @ X )
            = X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[25]) ).

thf(188,plain,
    ( ( ! [X: $i] :
          ( ( member @ ( member_of @ X ) @ universal_class )
          | ( ( member_of @ X )
            = X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[26]) ).

thf(189,plain,
    ( ( ! [Y: $i] :
          ( ~ ( member @ Y @ universal_class )
          | ( ( singleton @ ( member_of @ ( singleton @ Y ) ) )
            = ( singleton @ Y ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[27]) ).

thf(190,plain,
    ( ( ! [Y: $i] :
          ( ~ ( member @ Y @ universal_class )
          | ( member @ ( member_of @ ( singleton @ Y ) ) @ universal_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[28]) ).

thf(191,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)],[29]) ).

thf(192,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( ( singleton @ X )
           != ( singleton @ Y ) )
          | ~ ( member @ Y @ universal_class )
          | ( X = Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[30]) ).

thf(193,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( ( singleton @ X )
           != ( singleton @ Y ) )
          | ~ ( member @ X @ universal_class )
          | ( X = Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[31]) ).

thf(194,plain,
    ( ( ! [X: $i] :
          ( ( member @ X @ universal_class )
          | ( ( singleton @ X )
            = null_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[32]) ).

thf(195,plain,
    ( ( ! [Y: $i,X: $i] :
          ( ~ ( member @ Y @ ( singleton @ X ) )
          | ( Y = X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[33]) ).

thf(196,plain,
    ( ( member @ null_class @ ( singleton @ null_class ) )
    = $true ),
    inference(unfold_def,[status(thm)],[34]) ).

thf(197,plain,
    ( ( ! [X: $i] :
          ( ~ ( member @ X @ universal_class )
          | ( ( singleton @ X )
           != null_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[35]) ).

thf(198,plain,
    ( ( ! [X: $i] :
          ( ~ ( member @ X @ universal_class )
          | ( member @ X @ ( singleton @ X ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[36]) ).

thf(199,plain,
    ( ( ! [Y: $i,X: $i] : ( member @ ( singleton @ Y ) @ ( unordered_pair @ X @ ( singleton @ Y ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[37]) ).

thf(200,plain,
    ( ( ! [X: $i] : ( member @ ( singleton @ X ) @ universal_class ) )
    = $true ),
    inference(unfold_def,[status(thm)],[38]) ).

thf(201,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)],[39]) ).

thf(202,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)],[40]) ).

thf(203,plain,
    ( ( ! [Y: $i,X: $i] :
          ( ~ ( member @ Y @ universal_class )
          | ( ( unordered_pair @ X @ Y )
           != null_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[41]) ).

thf(204,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ X @ universal_class )
          | ( ( unordered_pair @ X @ Y )
           != null_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[42]) ).

thf(205,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)],[43]) ).

thf(206,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)],[44]) ).

thf(207,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)],[45]) ).

thf(208,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( member @ X @ universal_class )
          | ( ( unordered_pair @ X @ Y )
            = ( singleton @ Y ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[46]) ).

thf(209,plain,
    ( ( ! [Y: $i,X: $i] :
          ( ( member @ Y @ universal_class )
          | ( ( unordered_pair @ X @ Y )
            = ( singleton @ X ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[47]) ).

thf(210,plain,
    ( ( ! [Y: $i,X: $i] : ( subclass @ ( singleton @ Y ) @ ( unordered_pair @ X @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[48]) ).

thf(211,plain,
    ( ( ! [X: $i,Y: $i] : ( subclass @ ( singleton @ X ) @ ( unordered_pair @ X @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[49]) ).

thf(212,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( unordered_pair @ X @ Y )
          = ( unordered_pair @ Y @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[50]) ).

thf(213,plain,
    ( ( member @ null_class @ universal_class )
    = $true ),
    inference(unfold_def,[status(thm)],[51]) ).

thf(214,plain,
    ( ( ! [Z: $i] :
          ( ( Z = null_class )
          | ( member @ ( not_subclass_element @ Z @ null_class ) @ Z ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[52]) ).

thf(215,plain,
    ( ( ! [X: $i] :
          ( ~ ( subclass @ X @ null_class )
          | ( X = null_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[53]) ).

thf(216,plain,
    ( ( ! [X: $i] : ( subclass @ null_class @ X ) )
    = $true ),
    inference(unfold_def,[status(thm)],[54]) ).

thf(217,plain,
    ( ( ! [Z: $i] :
          ~ ( member @ Z @ null_class ) )
    = $true ),
    inference(unfold_def,[status(thm)],[55]) ).

thf(218,plain,
    ( ( ! [Y: $i,X: $i] :
          ~ ( member @ Y @ ( intersection @ ( complement @ X ) @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[56]) ).

thf(219,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)],[57]) ).

thf(220,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)],[58]) ).

thf(221,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)],[59]) ).

thf(222,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)],[60]) ).

thf(223,plain,
    ( ( ! [X: $i,Y: $i,Z: $i] :
          ( ~ ( subclass @ X @ Y )
          | ~ ( subclass @ Y @ Z )
          | ( subclass @ X @ Z ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[61]) ).

thf(224,plain,
    ( ( ! [X: $i] : ( subclass @ X @ X ) )
    = $true ),
    inference(unfold_def,[status(thm)],[62]) ).

thf(225,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)],[63]) ).

thf(226,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)],[64]) ).

thf(227,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)],[65]) ).

thf(228,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)],[66]) ).

thf(229,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)],[67]) ).

thf(230,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)],[68]) ).

thf(231,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)],[69]) ).

thf(232,plain,
    ( ( ! [Xh: $i,Xf1: $i,Xf2: $i] :
          ( ~ ( homomorphism @ Xh @ Xf1 @ Xf2 )
          | ( compatible @ Xh @ Xf1 @ Xf2 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[70]) ).

thf(233,plain,
    ( ( ! [Xh: $i,Xf1: $i,Xf2: $i] :
          ( ~ ( homomorphism @ Xh @ Xf1 @ Xf2 )
          | ( operation @ Xf2 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[71]) ).

thf(234,plain,
    ( ( ! [Xh: $i,Xf1: $i,Xf2: $i] :
          ( ~ ( homomorphism @ Xh @ Xf1 @ Xf2 )
          | ( operation @ Xf1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[72]) ).

thf(235,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)],[73]) ).

thf(236,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)],[74]) ).

thf(237,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)],[75]) ).

thf(238,plain,
    ( ( ! [Xh: $i,Xf1: $i,Xf2: $i] :
          ( ~ ( compatible @ Xh @ Xf1 @ Xf2 )
          | ( function @ Xh ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[76]) ).

thf(239,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)],[77]) ).

thf(240,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( operation @ Xf )
          | ( subclass @ ( range_of @ Xf ) @ ( domain_of @ ( domain_of @ Xf ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[78]) ).

thf(241,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)],[79]) ).

thf(242,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( operation @ Xf )
          | ( function @ Xf ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[80]) ).

thf(243,plain,
    ( ( ! [X: $i] :
          ( ( intersection @ ( domain_of @ X ) @ ( diagonalise @ ( compose @ ( inverse @ element_relation ) @ X ) ) )
          = ( cantor @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[81]) ).

thf(244,plain,
    ( ( ! [Xr: $i] :
          ( ( complement @ ( domain_of @ ( intersection @ Xr @ identity_relation ) ) )
          = ( diagonalise @ Xr ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[82]) ).

thf(245,plain,
    ( ( ( intersection @ ( inverse @ subset_relation ) @ subset_relation )
      = identity_relation )
    = $true ),
    inference(unfold_def,[status(thm)],[83]) ).

thf(246,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)],[84]) ).

thf(247,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( function @ ( inverse @ Xf ) )
          | ~ ( function @ Xf )
          | ( one_to_one @ Xf ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[85]) ).

thf(248,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( one_to_one @ Xf )
          | ( function @ ( inverse @ Xf ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[86]) ).

thf(249,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( one_to_one @ Xf )
          | ( function @ Xf ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[87]) ).

thf(250,plain,
    ( ( ! [Y: $i] :
          ( ~ ( member @ Y @ universal_class )
          | ( Y = null_class )
          | ( member @ ( apply @ choice @ Y ) @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[88]) ).

thf(251,plain,
    ( ( function @ choice )
    = $true ),
    inference(unfold_def,[status(thm)],[89]) ).

thf(252,plain,
    ( ( ! [Xf: $i,Y: $i] :
          ( ( sum_class @ ( image @ Xf @ ( singleton @ Y ) ) )
          = ( apply @ Xf @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[90]) ).

thf(253,plain,
    ( ( ! [X: $i] :
          ( ( X = null_class )
          | ( ( intersection @ X @ ( regular @ X ) )
            = null_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[91]) ).

thf(254,plain,
    ( ( ! [X: $i] :
          ( ( X = null_class )
          | ( member @ ( regular @ X ) @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[92]) ).

thf(255,plain,
    ( ( ! [Xf: $i,X: $i] :
          ( ~ ( function @ Xf )
          | ~ ( member @ X @ universal_class )
          | ( member @ ( image @ Xf @ X ) @ universal_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[93]) ).

thf(256,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)],[94]) ).

thf(257,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( function @ Xf )
          | ( subclass @ ( compose @ Xf @ ( inverse @ Xf ) ) @ identity_relation ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[95]) ).

thf(258,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( function @ Xf )
          | ( subclass @ Xf @ ( cross_product @ universal_class @ universal_class ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[96]) ).

thf(259,plain,
    ( ( ! [X: $i] :
          ( ~ ( subclass @ ( compose @ X @ ( inverse @ X ) ) @ identity_relation )
          | ( single_valued_class @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[97]) ).

thf(260,plain,
    ( ( ! [X: $i] :
          ( ~ ( single_valued_class @ X )
          | ( subclass @ ( compose @ X @ ( inverse @ X ) ) @ identity_relation ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[98]) ).

thf(261,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)],[99]) ).

thf(262,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)],[100]) ).

thf(263,plain,
    ( ( ! [Yr: $i,Xr: $i] : ( subclass @ ( compose @ Yr @ Xr ) @ ( cross_product @ universal_class @ universal_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[101]) ).

thf(264,plain,
    ( ( ! [U: $i] :
          ( ~ ( member @ U @ universal_class )
          | ( member @ ( power_class @ U ) @ universal_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[102]) ).

thf(265,plain,
    ( ( ! [X: $i] :
          ( ( complement @ ( image @ element_relation @ ( complement @ X ) ) )
          = ( power_class @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[103]) ).

thf(266,plain,
    ( ( ! [X: $i] :
          ( ~ ( member @ X @ universal_class )
          | ( member @ ( sum_class @ X ) @ universal_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[104]) ).

thf(267,plain,
    ( ( ! [X: $i] :
          ( ( domain_of @ ( restrict @ element_relation @ universal_class @ X ) )
          = ( sum_class @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[105]) ).

thf(268,plain,
    ( ( member @ omega @ universal_class )
    = $true ),
    inference(unfold_def,[status(thm)],[106]) ).

thf(269,plain,
    ( ( ! [Y: $i] :
          ( ~ ( inductive @ Y )
          | ( subclass @ omega @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[107]) ).

thf(270,plain,
    ( ( inductive @ omega )
    = $true ),
    inference(unfold_def,[status(thm)],[108]) ).

thf(271,plain,
    ( ( ! [X: $i] :
          ( ~ ( member @ null_class @ X )
          | ~ ( subclass @ ( image @ successor_relation @ X ) @ X )
          | ( inductive @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[109]) ).

thf(272,plain,
    ( ( ! [X: $i] :
          ( ~ ( inductive @ X )
          | ( subclass @ ( image @ successor_relation @ X ) @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[110]) ).

thf(273,plain,
    ( ( ! [X: $i] :
          ( ~ ( inductive @ X )
          | ( member @ null_class @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[111]) ).

thf(274,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)],[112]) ).

thf(275,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ ( ordered_pair @ X @ Y ) @ successor_relation )
          | ( ( successor @ X )
            = Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[113]) ).

thf(276,plain,
    ( ( subclass @ successor_relation @ ( cross_product @ universal_class @ universal_class ) )
    = $true ),
    inference(unfold_def,[status(thm)],[114]) ).

thf(277,plain,
    ( ( ! [X: $i] :
          ( ( union @ X @ ( singleton @ X ) )
          = ( successor @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[115]) ).

thf(278,plain,
    ( ( ! [Xr: $i,X: $i] :
          ( ( range_of @ ( restrict @ Xr @ X @ universal_class ) )
          = ( image @ Xr @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[116]) ).

thf(279,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)],[117]) ).

thf(280,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)],[118]) ).

thf(281,plain,
    ( ( ! [Z: $i] :
          ( ( domain_of @ ( inverse @ Z ) )
          = ( range_of @ Z ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[119]) ).

thf(282,plain,
    ( ( ! [Y: $i] :
          ( ( domain_of @ ( flip @ ( cross_product @ Y @ universal_class ) ) )
          = ( inverse @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[120]) ).

thf(283,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)],[121]) ).

thf(284,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)],[122]) ).

thf(285,plain,
    ( ( ! [X: $i] : ( subclass @ ( flip @ X ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[123]) ).

thf(286,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)],[124]) ).

thf(287,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)],[125]) ).

thf(288,plain,
    ( ( ! [X: $i] : ( subclass @ ( rotate @ X ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[126]) ).

thf(289,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)],[127]) ).

thf(290,plain,
    ( ( ! [X: $i,Z: $i] :
          ( ( ( restrict @ X @ ( singleton @ Z ) @ universal_class )
           != null_class )
          | ~ ( member @ Z @ ( domain_of @ X ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[128]) ).

thf(291,plain,
    ( ( ! [X: $i,Y: $i,Xr: $i] :
          ( ( intersection @ ( cross_product @ X @ Y ) @ Xr )
          = ( restrict @ Xr @ X @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[129]) ).

thf(292,plain,
    ( ( ! [Xr: $i,X: $i,Y: $i] :
          ( ( intersection @ Xr @ ( cross_product @ X @ Y ) )
          = ( restrict @ Xr @ X @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[130]) ).

thf(293,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)],[131]) ).

thf(294,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( complement @ ( intersection @ ( complement @ X ) @ ( complement @ Y ) ) )
          = ( union @ X @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[132]) ).

thf(295,plain,
    ( ( ! [Z: $i,X: $i] :
          ( ~ ( member @ Z @ universal_class )
          | ( member @ Z @ ( complement @ X ) )
          | ( member @ Z @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[133]) ).

thf(296,plain,
    ( ( ! [Z: $i,X: $i] :
          ( ~ ( member @ Z @ ( complement @ X ) )
          | ~ ( member @ Z @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[134]) ).

thf(297,plain,
    ( ( ! [Z: $i,X: $i,Y: $i] :
          ( ~ ( member @ Z @ X )
          | ~ ( member @ Z @ Y )
          | ( member @ Z @ ( intersection @ X @ Y ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[135]) ).

thf(298,plain,
    ( ( ! [Z: $i,X: $i,Y: $i] :
          ( ~ ( member @ Z @ ( intersection @ X @ Y ) )
          | ( member @ Z @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[136]) ).

thf(299,plain,
    ( ( ! [Z: $i,X: $i,Y: $i] :
          ( ~ ( member @ Z @ ( intersection @ X @ Y ) )
          | ( member @ Z @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[137]) ).

thf(300,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)],[138]) ).

thf(301,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ ( ordered_pair @ X @ Y ) @ element_relation )
          | ( member @ X @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[139]) ).

thf(302,plain,
    ( ( subclass @ element_relation @ ( cross_product @ universal_class @ universal_class ) )
    = $true ),
    inference(unfold_def,[status(thm)],[140]) ).

thf(303,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)],[141]) ).

thf(304,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)],[142]) ).

thf(305,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)],[143]) ).

thf(306,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)],[144]) ).

thf(307,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( unordered_pair @ ( singleton @ X ) @ ( unordered_pair @ X @ ( singleton @ Y ) ) )
          = ( ordered_pair @ X @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[145]) ).

thf(308,plain,
    ( ( ! [X: $i] :
          ( ( unordered_pair @ X @ X )
          = ( singleton @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[146]) ).

thf(309,plain,
    ( ( ! [X: $i,Y: $i] : ( member @ ( unordered_pair @ X @ Y ) @ universal_class ) )
    = $true ),
    inference(unfold_def,[status(thm)],[147]) ).

thf(310,plain,
    ( ( ! [Y: $i,X: $i] :
          ( ~ ( member @ Y @ universal_class )
          | ( member @ Y @ ( unordered_pair @ X @ Y ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[148]) ).

thf(311,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ X @ universal_class )
          | ( member @ X @ ( unordered_pair @ X @ Y ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[149]) ).

thf(312,plain,
    ( ( ! [U: $i,X: $i,Y: $i] :
          ( ~ ( member @ U @ ( unordered_pair @ X @ Y ) )
          | ( U = X )
          | ( U = Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[150]) ).

thf(313,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( subclass @ X @ Y )
          | ~ ( subclass @ Y @ X )
          | ( X = Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[151]) ).

thf(314,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( X != Y )
          | ( subclass @ Y @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[152]) ).

thf(315,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( X != Y )
          | ( subclass @ X @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[153]) ).

thf(316,plain,
    ( ( ! [X: $i] : ( subclass @ X @ universal_class ) )
    = $true ),
    inference(unfold_def,[status(thm)],[154]) ).

thf(317,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ ( not_subclass_element @ X @ Y ) @ Y )
          | ( subclass @ X @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[155]) ).

thf(318,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( member @ ( not_subclass_element @ X @ Y ) @ X )
          | ( subclass @ X @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[156]) ).

thf(319,plain,
    ( ( ! [X: $i,Y: $i,U: $i] :
          ( ~ ( subclass @ X @ Y )
          | ~ ( member @ U @ X )
          | ( member @ U @ Y ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[157]) ).

thf(320,plain,
    ( ( ( first @ ( ordered_pair @ u @ v ) )
     != u )
    = $true ),
    inference(unfold_def,[status(thm)],[160]) ).

thf(321,plain,
    ( ( member @ ( ordered_pair @ u @ v ) @ ( cross_product @ universal_class @ universal_class ) )
    = $true ),
    inference(unfold_def,[status(thm)],[161]) ).

thf(322,plain,
    ( ( ~ $false ) = $true ),
    inference(polarity_switch,[status(thm)],[162]) ).

thf(323,plain,
    ( ( member @ ( ordered_pair @ u @ v ) @ ( cross_product @ universal_class @ universal_class ) )
    = $true ),
    inference(copy,[status(thm)],[321]) ).

thf(324,plain,
    ( ( ( first @ ( ordered_pair @ u @ v ) )
     != u )
    = $true ),
    inference(copy,[status(thm)],[320]) ).

thf(325,plain,
    ( ( ! [X: $i,Y: $i,U: $i] :
          ( ~ ( subclass @ X @ Y )
          | ~ ( member @ U @ X )
          | ( member @ U @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[319]) ).

thf(326,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( member @ ( not_subclass_element @ X @ Y ) @ X )
          | ( subclass @ X @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[318]) ).

thf(327,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ ( not_subclass_element @ X @ Y ) @ Y )
          | ( subclass @ X @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[317]) ).

thf(328,plain,
    ( ( ! [X: $i] : ( subclass @ X @ universal_class ) )
    = $true ),
    inference(copy,[status(thm)],[316]) ).

thf(329,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( X != Y )
          | ( subclass @ X @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[315]) ).

thf(330,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( X != Y )
          | ( subclass @ Y @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[314]) ).

thf(331,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( subclass @ X @ Y )
          | ~ ( subclass @ Y @ X )
          | ( X = Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[313]) ).

thf(332,plain,
    ( ( ! [U: $i,X: $i,Y: $i] :
          ( ~ ( member @ U @ ( unordered_pair @ X @ Y ) )
          | ( U = X )
          | ( U = Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[312]) ).

thf(333,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ X @ universal_class )
          | ( member @ X @ ( unordered_pair @ X @ Y ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[311]) ).

thf(334,plain,
    ( ( ! [Y: $i,X: $i] :
          ( ~ ( member @ Y @ universal_class )
          | ( member @ Y @ ( unordered_pair @ X @ Y ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[310]) ).

thf(335,plain,
    ( ( ! [X: $i,Y: $i] : ( member @ ( unordered_pair @ X @ Y ) @ universal_class ) )
    = $true ),
    inference(copy,[status(thm)],[309]) ).

thf(336,plain,
    ( ( ! [X: $i] :
          ( ( unordered_pair @ X @ X )
          = ( singleton @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[308]) ).

thf(337,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( unordered_pair @ ( singleton @ X ) @ ( unordered_pair @ X @ ( singleton @ Y ) ) )
          = ( ordered_pair @ X @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[307]) ).

thf(338,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)],[306]) ).

thf(339,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)],[305]) ).

thf(340,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(copy,[status(thm)],[304]) ).

thf(341,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)],[303]) ).

thf(342,plain,
    ( ( subclass @ element_relation @ ( cross_product @ universal_class @ universal_class ) )
    = $true ),
    inference(copy,[status(thm)],[302]) ).

thf(343,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ ( ordered_pair @ X @ Y ) @ element_relation )
          | ( member @ X @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[301]) ).

thf(344,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)],[300]) ).

thf(345,plain,
    ( ( ! [Z: $i,X: $i,Y: $i] :
          ( ~ ( member @ Z @ ( intersection @ X @ Y ) )
          | ( member @ Z @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[299]) ).

thf(346,plain,
    ( ( ! [Z: $i,X: $i,Y: $i] :
          ( ~ ( member @ Z @ ( intersection @ X @ Y ) )
          | ( member @ Z @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[298]) ).

thf(347,plain,
    ( ( ! [Z: $i,X: $i,Y: $i] :
          ( ~ ( member @ Z @ X )
          | ~ ( member @ Z @ Y )
          | ( member @ Z @ ( intersection @ X @ Y ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[297]) ).

thf(348,plain,
    ( ( ! [Z: $i,X: $i] :
          ( ~ ( member @ Z @ ( complement @ X ) )
          | ~ ( member @ Z @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[296]) ).

thf(349,plain,
    ( ( ! [Z: $i,X: $i] :
          ( ~ ( member @ Z @ universal_class )
          | ( member @ Z @ ( complement @ X ) )
          | ( member @ Z @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[295]) ).

thf(350,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( complement @ ( intersection @ ( complement @ X ) @ ( complement @ Y ) ) )
          = ( union @ X @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[294]) ).

thf(351,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)],[293]) ).

thf(352,plain,
    ( ( ! [Xr: $i,X: $i,Y: $i] :
          ( ( intersection @ Xr @ ( cross_product @ X @ Y ) )
          = ( restrict @ Xr @ X @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[292]) ).

thf(353,plain,
    ( ( ! [X: $i,Y: $i,Xr: $i] :
          ( ( intersection @ ( cross_product @ X @ Y ) @ Xr )
          = ( restrict @ Xr @ X @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[291]) ).

thf(354,plain,
    ( ( ! [X: $i,Z: $i] :
          ( ( ( restrict @ X @ ( singleton @ Z ) @ universal_class )
           != null_class )
          | ~ ( member @ Z @ ( domain_of @ X ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[290]) ).

thf(355,plain,
    ( ( ! [Z: $i,X: $i] :
          ( ~ ( member @ Z @ universal_class )
          | ( ( restrict @ X @ ( singleton @ Z ) @ universal_class )
            = null_class )
          | ( member @ Z @ ( domain_of @ X ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[289]) ).

thf(356,plain,
    ( ( ! [X: $i] : ( subclass @ ( rotate @ X ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[288]) ).

thf(357,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)],[287]) ).

thf(358,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)],[286]) ).

thf(359,plain,
    ( ( ! [X: $i] : ( subclass @ ( flip @ X ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[285]) ).

thf(360,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)],[284]) ).

thf(361,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)],[283]) ).

thf(362,plain,
    ( ( ! [Y: $i] :
          ( ( domain_of @ ( flip @ ( cross_product @ Y @ universal_class ) ) )
          = ( inverse @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[282]) ).

thf(363,plain,
    ( ( ! [Z: $i] :
          ( ( domain_of @ ( inverse @ Z ) )
          = ( range_of @ Z ) ) )
    = $true ),
    inference(copy,[status(thm)],[281]) ).

thf(364,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)],[280]) ).

thf(365,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)],[279]) ).

thf(366,plain,
    ( ( ! [Xr: $i,X: $i] :
          ( ( range_of @ ( restrict @ Xr @ X @ universal_class ) )
          = ( image @ Xr @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[278]) ).

thf(367,plain,
    ( ( ! [X: $i] :
          ( ( union @ X @ ( singleton @ X ) )
          = ( successor @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[277]) ).

thf(368,plain,
    ( ( subclass @ successor_relation @ ( cross_product @ universal_class @ universal_class ) )
    = $true ),
    inference(copy,[status(thm)],[276]) ).

thf(369,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ ( ordered_pair @ X @ Y ) @ successor_relation )
          | ( ( successor @ X )
            = Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[275]) ).

thf(370,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)],[274]) ).

thf(371,plain,
    ( ( ! [X: $i] :
          ( ~ ( inductive @ X )
          | ( member @ null_class @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[273]) ).

thf(372,plain,
    ( ( ! [X: $i] :
          ( ~ ( inductive @ X )
          | ( subclass @ ( image @ successor_relation @ X ) @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[272]) ).

thf(373,plain,
    ( ( ! [X: $i] :
          ( ~ ( member @ null_class @ X )
          | ~ ( subclass @ ( image @ successor_relation @ X ) @ X )
          | ( inductive @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[271]) ).

thf(374,plain,
    ( ( inductive @ omega )
    = $true ),
    inference(copy,[status(thm)],[270]) ).

thf(375,plain,
    ( ( ! [Y: $i] :
          ( ~ ( inductive @ Y )
          | ( subclass @ omega @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[269]) ).

thf(376,plain,
    ( ( member @ omega @ universal_class )
    = $true ),
    inference(copy,[status(thm)],[268]) ).

thf(377,plain,
    ( ( ! [X: $i] :
          ( ( domain_of @ ( restrict @ element_relation @ universal_class @ X ) )
          = ( sum_class @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[267]) ).

thf(378,plain,
    ( ( ! [X: $i] :
          ( ~ ( member @ X @ universal_class )
          | ( member @ ( sum_class @ X ) @ universal_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[266]) ).

thf(379,plain,
    ( ( ! [X: $i] :
          ( ( complement @ ( image @ element_relation @ ( complement @ X ) ) )
          = ( power_class @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[265]) ).

thf(380,plain,
    ( ( ! [U: $i] :
          ( ~ ( member @ U @ universal_class )
          | ( member @ ( power_class @ U ) @ universal_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[264]) ).

thf(381,plain,
    ( ( ! [Yr: $i,Xr: $i] : ( subclass @ ( compose @ Yr @ Xr ) @ ( cross_product @ universal_class @ universal_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[263]) ).

thf(382,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)],[262]) ).

thf(383,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)],[261]) ).

thf(384,plain,
    ( ( ! [X: $i] :
          ( ~ ( single_valued_class @ X )
          | ( subclass @ ( compose @ X @ ( inverse @ X ) ) @ identity_relation ) ) )
    = $true ),
    inference(copy,[status(thm)],[260]) ).

thf(385,plain,
    ( ( ! [X: $i] :
          ( ~ ( subclass @ ( compose @ X @ ( inverse @ X ) ) @ identity_relation )
          | ( single_valued_class @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[259]) ).

thf(386,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( function @ Xf )
          | ( subclass @ Xf @ ( cross_product @ universal_class @ universal_class ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[258]) ).

thf(387,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( function @ Xf )
          | ( subclass @ ( compose @ Xf @ ( inverse @ Xf ) ) @ identity_relation ) ) )
    = $true ),
    inference(copy,[status(thm)],[257]) ).

thf(388,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)],[256]) ).

thf(389,plain,
    ( ( ! [Xf: $i,X: $i] :
          ( ~ ( function @ Xf )
          | ~ ( member @ X @ universal_class )
          | ( member @ ( image @ Xf @ X ) @ universal_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[255]) ).

thf(390,plain,
    ( ( ! [X: $i] :
          ( ( X = null_class )
          | ( member @ ( regular @ X ) @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[254]) ).

thf(391,plain,
    ( ( ! [X: $i] :
          ( ( X = null_class )
          | ( ( intersection @ X @ ( regular @ X ) )
            = null_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[253]) ).

thf(392,plain,
    ( ( ! [Xf: $i,Y: $i] :
          ( ( sum_class @ ( image @ Xf @ ( singleton @ Y ) ) )
          = ( apply @ Xf @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[252]) ).

thf(393,plain,
    ( ( function @ choice )
    = $true ),
    inference(copy,[status(thm)],[251]) ).

thf(394,plain,
    ( ( ! [Y: $i] :
          ( ~ ( member @ Y @ universal_class )
          | ( Y = null_class )
          | ( member @ ( apply @ choice @ Y ) @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[250]) ).

thf(395,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( one_to_one @ Xf )
          | ( function @ Xf ) ) )
    = $true ),
    inference(copy,[status(thm)],[249]) ).

thf(396,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( one_to_one @ Xf )
          | ( function @ ( inverse @ Xf ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[248]) ).

thf(397,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( function @ ( inverse @ Xf ) )
          | ~ ( function @ Xf )
          | ( one_to_one @ Xf ) ) )
    = $true ),
    inference(copy,[status(thm)],[247]) ).

thf(398,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)],[246]) ).

thf(399,plain,
    ( ( ( intersection @ ( inverse @ subset_relation ) @ subset_relation )
      = identity_relation )
    = $true ),
    inference(copy,[status(thm)],[245]) ).

thf(400,plain,
    ( ( ! [Xr: $i] :
          ( ( complement @ ( domain_of @ ( intersection @ Xr @ identity_relation ) ) )
          = ( diagonalise @ Xr ) ) )
    = $true ),
    inference(copy,[status(thm)],[244]) ).

thf(401,plain,
    ( ( ! [X: $i] :
          ( ( intersection @ ( domain_of @ X ) @ ( diagonalise @ ( compose @ ( inverse @ element_relation ) @ X ) ) )
          = ( cantor @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[243]) ).

thf(402,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( operation @ Xf )
          | ( function @ Xf ) ) )
    = $true ),
    inference(copy,[status(thm)],[242]) ).

thf(403,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)],[241]) ).

thf(404,plain,
    ( ( ! [Xf: $i] :
          ( ~ ( operation @ Xf )
          | ( subclass @ ( range_of @ Xf ) @ ( domain_of @ ( domain_of @ Xf ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[240]) ).

thf(405,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)],[239]) ).

thf(406,plain,
    ( ( ! [Xh: $i,Xf1: $i,Xf2: $i] :
          ( ~ ( compatible @ Xh @ Xf1 @ Xf2 )
          | ( function @ Xh ) ) )
    = $true ),
    inference(copy,[status(thm)],[238]) ).

thf(407,plain,
    ( ( ! [Xh: $i,Xf1: $i,Xf2: $i] :
          ( ~ ( compatible @ Xh @ Xf1 @ Xf2 )
          | ( ( domain_of @ ( domain_of @ Xf1 ) )
            = ( domain_of @ Xh ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[237]) ).

thf(408,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)],[236]) ).

thf(409,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(copy,[status(thm)],[235]) ).

thf(410,plain,
    ( ( ! [Xh: $i,Xf1: $i,Xf2: $i] :
          ( ~ ( homomorphism @ Xh @ Xf1 @ Xf2 )
          | ( operation @ Xf1 ) ) )
    = $true ),
    inference(copy,[status(thm)],[234]) ).

thf(411,plain,
    ( ( ! [Xh: $i,Xf1: $i,Xf2: $i] :
          ( ~ ( homomorphism @ Xh @ Xf1 @ Xf2 )
          | ( operation @ Xf2 ) ) )
    = $true ),
    inference(copy,[status(thm)],[233]) ).

thf(412,plain,
    ( ( ! [Xh: $i,Xf1: $i,Xf2: $i] :
          ( ~ ( homomorphism @ Xh @ Xf1 @ Xf2 )
          | ( compatible @ Xh @ Xf1 @ Xf2 ) ) )
    = $true ),
    inference(copy,[status(thm)],[232]) ).

thf(413,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(copy,[status(thm)],[231]) ).

thf(414,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(copy,[status(thm)],[230]) ).

thf(415,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(copy,[status(thm)],[229]) ).

thf(416,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)],[228]) ).

thf(417,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)],[227]) ).

thf(418,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)],[226]) ).

thf(419,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)],[225]) ).

thf(420,plain,
    ( ( ! [X: $i] : ( subclass @ X @ X ) )
    = $true ),
    inference(copy,[status(thm)],[224]) ).

thf(421,plain,
    ( ( ! [X: $i,Y: $i,Z: $i] :
          ( ~ ( subclass @ X @ Y )
          | ~ ( subclass @ Y @ Z )
          | ( subclass @ X @ Z ) ) )
    = $true ),
    inference(copy,[status(thm)],[223]) ).

thf(422,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)],[222]) ).

thf(423,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)],[221]) ).

thf(424,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)],[220]) ).

thf(425,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)],[219]) ).

thf(426,plain,
    ( ( ! [Y: $i,X: $i] :
          ~ ( member @ Y @ ( intersection @ ( complement @ X ) @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[218]) ).

thf(427,plain,
    ( ( ! [Z: $i] :
          ~ ( member @ Z @ null_class ) )
    = $true ),
    inference(copy,[status(thm)],[217]) ).

thf(428,plain,
    ( ( ! [X: $i] : ( subclass @ null_class @ X ) )
    = $true ),
    inference(copy,[status(thm)],[216]) ).

thf(429,plain,
    ( ( ! [X: $i] :
          ( ~ ( subclass @ X @ null_class )
          | ( X = null_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[215]) ).

thf(430,plain,
    ( ( ! [Z: $i] :
          ( ( Z = null_class )
          | ( member @ ( not_subclass_element @ Z @ null_class ) @ Z ) ) )
    = $true ),
    inference(copy,[status(thm)],[214]) ).

thf(431,plain,
    ( ( member @ null_class @ universal_class )
    = $true ),
    inference(copy,[status(thm)],[213]) ).

thf(432,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( unordered_pair @ X @ Y )
          = ( unordered_pair @ Y @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[212]) ).

thf(433,plain,
    ( ( ! [X: $i,Y: $i] : ( subclass @ ( singleton @ X ) @ ( unordered_pair @ X @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[211]) ).

thf(434,plain,
    ( ( ! [Y: $i,X: $i] : ( subclass @ ( singleton @ Y ) @ ( unordered_pair @ X @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[210]) ).

thf(435,plain,
    ( ( ! [Y: $i,X: $i] :
          ( ( member @ Y @ universal_class )
          | ( ( unordered_pair @ X @ Y )
            = ( singleton @ X ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[209]) ).

thf(436,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( member @ X @ universal_class )
          | ( ( unordered_pair @ X @ Y )
            = ( singleton @ Y ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[208]) ).

thf(437,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( ( unordered_pair @ X @ Y )
            = null_class )
          | ( member @ X @ universal_class )
          | ( member @ Y @ universal_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[207]) ).

thf(438,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)],[206]) ).

thf(439,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)],[205]) ).

thf(440,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ X @ universal_class )
          | ( ( unordered_pair @ X @ Y )
           != null_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[204]) ).

thf(441,plain,
    ( ( ! [Y: $i,X: $i] :
          ( ~ ( member @ Y @ universal_class )
          | ( ( unordered_pair @ X @ Y )
           != null_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[203]) ).

thf(442,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)],[202]) ).

thf(443,plain,
    ( ( ! [X: $i,Z: $i,Y: $i] :
          ( ~ ( member @ X @ Z )
          | ~ ( member @ Y @ Z )
          | ( subclass @ ( unordered_pair @ X @ Y ) @ Z ) ) )
    = $true ),
    inference(copy,[status(thm)],[201]) ).

thf(444,plain,
    ( ( ! [X: $i] : ( member @ ( singleton @ X ) @ universal_class ) )
    = $true ),
    inference(copy,[status(thm)],[200]) ).

thf(445,plain,
    ( ( ! [Y: $i,X: $i] : ( member @ ( singleton @ Y ) @ ( unordered_pair @ X @ ( singleton @ Y ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[199]) ).

thf(446,plain,
    ( ( ! [X: $i] :
          ( ~ ( member @ X @ universal_class )
          | ( member @ X @ ( singleton @ X ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[198]) ).

thf(447,plain,
    ( ( ! [X: $i] :
          ( ~ ( member @ X @ universal_class )
          | ( ( singleton @ X )
           != null_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[197]) ).

thf(448,plain,
    ( ( member @ null_class @ ( singleton @ null_class ) )
    = $true ),
    inference(copy,[status(thm)],[196]) ).

thf(449,plain,
    ( ( ! [Y: $i,X: $i] :
          ( ~ ( member @ Y @ ( singleton @ X ) )
          | ( Y = X ) ) )
    = $true ),
    inference(copy,[status(thm)],[195]) ).

thf(450,plain,
    ( ( ! [X: $i] :
          ( ( member @ X @ universal_class )
          | ( ( singleton @ X )
            = null_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[194]) ).

thf(451,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( ( singleton @ X )
           != ( singleton @ Y ) )
          | ~ ( member @ X @ universal_class )
          | ( X = Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[193]) ).

thf(452,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( ( singleton @ X )
           != ( singleton @ Y ) )
          | ~ ( member @ Y @ universal_class )
          | ( X = Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[192]) ).

thf(453,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)],[191]) ).

thf(454,plain,
    ( ( ! [Y: $i] :
          ( ~ ( member @ Y @ universal_class )
          | ( member @ ( member_of @ ( singleton @ Y ) ) @ universal_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[190]) ).

thf(455,plain,
    ( ( ! [Y: $i] :
          ( ~ ( member @ Y @ universal_class )
          | ( ( singleton @ ( member_of @ ( singleton @ Y ) ) )
            = ( singleton @ Y ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[189]) ).

thf(456,plain,
    ( ( ! [X: $i] :
          ( ( member @ ( member_of @ X ) @ universal_class )
          | ( ( member_of @ X )
            = X ) ) )
    = $true ),
    inference(copy,[status(thm)],[188]) ).

thf(457,plain,
    ( ( ! [X: $i] :
          ( ( ( singleton @ ( member_of @ X ) )
            = X )
          | ( ( member_of @ X )
            = X ) ) )
    = $true ),
    inference(copy,[status(thm)],[187]) ).

thf(458,plain,
    ( ( ! [U: $i] :
          ( ~ ( member @ U @ universal_class )
          | ( ( member_of @ ( singleton @ U ) )
            = U ) ) )
    = $true ),
    inference(copy,[status(thm)],[186]) ).

thf(459,plain,
    ( ( ! [X: $i] :
          ( ( member @ ( member_of1 @ X ) @ universal_class )
          | ( ( member_of @ X )
            = X ) ) )
    = $true ),
    inference(copy,[status(thm)],[185]) ).

thf(460,plain,
    ( ( ! [X: $i] :
          ( ( ( singleton @ ( member_of1 @ X ) )
            = X )
          | ( ( member_of @ X )
            = X ) ) )
    = $true ),
    inference(copy,[status(thm)],[184]) ).

thf(461,plain,
    ( ( ! [X: $i] :
          ( ( ( singleton @ ( member_of @ X ) )
           != X )
          | ( member @ X @ universal_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[183]) ).

thf(462,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( ( singleton @ ( member_of @ X ) )
           != X )
          | ~ ( member @ Y @ X )
          | ( ( member_of @ X )
            = Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[182]) ).

thf(463,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( member @ X @ Y )
          | ( subclass @ ( singleton @ X ) @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[181]) ).

thf(464,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( subclass @ X @ ( singleton @ Y ) )
          | ( X = null_class )
          | ( ( singleton @ Y )
            = X ) ) )
    = $true ),
    inference(copy,[status(thm)],[180]) ).

thf(465,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)],[179]) ).

thf(466,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)],[178]) ).

thf(467,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)],[177]) ).

thf(468,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( unordered_pair @ X @ Y )
          = ( union @ ( singleton @ X ) @ ( singleton @ Y ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[176]) ).

thf(469,plain,
    ( ( ! [X: $i,Y: $i] : ( member @ ( ordered_pair @ X @ Y ) @ universal_class ) )
    = $true ),
    inference(copy,[status(thm)],[175]) ).

thf(470,plain,
    ( ( ! [X: $i,Y: $i] : ( member @ ( singleton @ X ) @ ( ordered_pair @ X @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[174]) ).

thf(471,plain,
    ( ( ! [X: $i,Y: $i] : ( member @ ( unordered_pair @ X @ ( singleton @ Y ) ) @ ( ordered_pair @ X @ Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[173]) ).

thf(472,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( ( unordered_pair @ ( singleton @ X ) @ ( unordered_pair @ X @ null_class ) )
            = ( ordered_pair @ X @ Y ) )
          | ( member @ Y @ universal_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[172]) ).

thf(473,plain,
    ( ( ! [Y: $i,X: $i] :
          ( ~ ( member @ Y @ universal_class )
          | ( ( unordered_pair @ null_class @ ( singleton @ ( singleton @ Y ) ) )
            = ( ordered_pair @ X @ Y ) )
          | ( member @ X @ universal_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[171]) ).

thf(474,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( ( unordered_pair @ null_class @ ( singleton @ null_class ) )
            = ( ordered_pair @ X @ Y ) )
          | ( member @ X @ universal_class )
          | ( member @ Y @ universal_class ) ) )
    = $true ),
    inference(copy,[status(thm)],[170]) ).

thf(475,plain,
    ( ( ! [W: $i,X: $i,Y: $i,Z: $i] :
          ( ( ( ordered_pair @ W @ X )
           != ( ordered_pair @ Y @ Z ) )
          | ~ ( member @ W @ universal_class )
          | ( W = Y ) ) )
    = $true ),
    inference(copy,[status(thm)],[169]) ).

thf(476,plain,
    ( ( ! [W: $i,X: $i,Y: $i,Z: $i] :
          ( ( ( ordered_pair @ W @ X )
           != ( ordered_pair @ Y @ Z ) )
          | ~ ( member @ X @ universal_class )
          | ( X = Z ) ) )
    = $true ),
    inference(copy,[status(thm)],[168]) ).

thf(477,plain,
    ( ( ! [Y: $i,Z: $i] :
          ( ~ ( member @ ( ordered_pair @ Y @ Z ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( member @ ( ordered_pair @ ( first @ ( ordered_pair @ Y @ Z ) ) @ ( second @ ( ordered_pair @ Y @ Z ) ) ) @ ( cross_product @ universal_class @ universal_class ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[167]) ).

thf(478,plain,
    ( ( ! [X: $i] :
          ( ( member @ ( ordered_pair @ ( first @ X ) @ ( second @ X ) ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( ( first @ X )
            = X ) ) )
    = $true ),
    inference(copy,[status(thm)],[166]) ).

thf(479,plain,
    ( ( ! [X: $i] :
          ( ( member @ ( ordered_pair @ ( first @ X ) @ ( second @ X ) ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( ( second @ X )
            = X ) ) )
    = $true ),
    inference(copy,[status(thm)],[165]) ).

thf(480,plain,
    ( ( ! [X: $i] :
          ( ( ( ordered_pair @ ( first @ X ) @ ( second @ X ) )
            = X )
          | ( ( first @ X )
            = X ) ) )
    = $true ),
    inference(copy,[status(thm)],[164]) ).

thf(481,plain,
    ( ( ! [X: $i] :
          ( ( ( ordered_pair @ ( first @ X ) @ ( second @ X ) )
            = X )
          | ( ( second @ X )
            = X ) ) )
    = $true ),
    inference(copy,[status(thm)],[163]) ).

thf(482,plain,
    ( ( ~ $false ) = $true ),
    inference(copy,[status(thm)],[322]) ).

thf(483,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( singleton @ SX0 )
           != ( singleton @ SX1 ) )
          | ~ ( member @ SX0 @ universal_class )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[451]) ).

thf(484,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i,SX3: $i] :
          ( ~ ( member @ ( ordered_pair @ SX0 @ SX1 ) @ ( cross_product @ SX2 @ SX3 ) )
          | ( ( unordered_pair @ SX0 @ SX1 )
           != null_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[442]) ).

thf(485,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( singleton @ ( member_of @ SX0 ) )
           != SX0 )
          | ~ ( member @ SX1 @ SX0 )
          | ( ( member_of @ SX0 )
            = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[462]) ).

thf(486,plain,
    ( ( ! [SX0: $i] :
          ( ( ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ SX0 @ null_class ) ) ) @ SX0 ) @ null_class )
           != ( not_subclass_element @ SX0 @ null_class ) )
          | ( ( singleton @ ( not_subclass_element @ SX0 @ null_class ) )
            = SX0 )
          | ( SX0 = null_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[467]) ).

thf(487,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ( ( unordered_pair @ SX0 @ SX1 )
           != ( unordered_pair @ SX0 @ SX2 ) )
          | ~ ( member @ ( ordered_pair @ SX1 @ SX2 ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( SX1 = SX2 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[438]) ).

thf(488,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ( function @ SX0 )
          | ( ( domain_of @ ( domain_of @ SX1 ) )
           != ( domain_of @ SX0 ) )
          | ~ ( subclass @ ( range_of @ SX0 ) @ ( domain_of @ ( domain_of @ SX2 ) ) )
          | ( compatible @ SX0 @ SX1 @ SX2 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[409]) ).

thf(489,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 != SX1 )
          | ( subclass @ SX0 @ SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[329]) ).

thf(490,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( member @ SX0 @ universal_class )
          | ( ( unordered_pair @ SX0 @ SX1 )
           != null_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[440]) ).

thf(491,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( function @ SX0 )
          | ( ( cross_product @ ( domain_of @ ( domain_of @ SX0 ) ) @ ( domain_of @ ( domain_of @ SX0 ) ) )
           != ( domain_of @ SX0 ) )
          | ~ ( subclass @ ( range_of @ SX0 ) @ ( domain_of @ ( domain_of @ SX0 ) ) )
          | ( operation @ SX0 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[405]) ).

thf(492,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( successor @ SX0 )
           != SX1 )
          | ~ ( member @ ( ordered_pair @ SX0 @ SX1 ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( member @ ( ordered_pair @ SX0 @ SX1 ) @ successor_relation ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[370]) ).

thf(493,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i,SX3: $i] :
          ( ( ( ordered_pair @ SX0 @ SX1 )
           != ( ordered_pair @ SX2 @ SX3 ) )
          | ~ ( member @ SX0 @ universal_class )
          | ( SX0 = SX2 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[475]) ).

thf(494,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ( ( unordered_pair @ SX0 @ SX1 )
           != ( singleton @ SX2 ) )
          | ~ ( member @ SX2 @ universal_class )
          | ( SX2 = SX0 )
          | ( SX2 = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[453]) ).

thf(495,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( singleton @ SX0 )
           != ( singleton @ SX1 ) )
          | ~ ( member @ SX1 @ universal_class )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[452]) ).

thf(496,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( member @ SX0 @ universal_class )
          | ( ( singleton @ SX0 )
           != null_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[447]) ).

thf(497,plain,
    ( ( ( first @ ( ordered_pair @ u @ v ) )
     != u )
    = $true ),
    inference(unfold_def,[status(thm)],[324]) ).

thf(498,plain,
    ( ( ! [SX0: $i] :
          ( ( ( singleton @ ( member_of @ SX0 ) )
           != SX0 )
          | ( member @ SX0 @ universal_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[461]) ).

thf(499,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ( operation @ SX0 )
          | ~ ( operation @ SX1 )
          | ~ ( compatible @ SX2 @ SX0 @ SX1 )
          | ( ( apply @ SX1 @ ( ordered_pair @ ( apply @ SX2 @ ( not_homomorphism1 @ SX2 @ SX0 @ SX1 ) ) @ ( apply @ SX2 @ ( not_homomorphism2 @ SX2 @ SX0 @ SX1 ) ) ) )
           != ( apply @ SX2 @ ( apply @ SX0 @ ( ordered_pair @ ( not_homomorphism1 @ SX2 @ SX0 @ SX1 ) @ ( not_homomorphism2 @ SX2 @ SX0 @ SX1 ) ) ) ) )
          | ( homomorphism @ SX2 @ SX0 @ SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[415]) ).

thf(500,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i,SX3: $i] :
          ( ( ( ordered_pair @ SX0 @ SX1 )
           != ( ordered_pair @ SX2 @ SX3 ) )
          | ~ ( member @ SX1 @ universal_class )
          | ( SX1 = SX3 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[476]) ).

thf(501,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( member @ SX0 @ universal_class )
          | ( ( unordered_pair @ SX1 @ SX0 )
           != null_class ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[441]) ).

thf(502,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 != SX1 )
          | ( subclass @ SX1 @ SX0 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[330]) ).

thf(503,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ( ( unordered_pair @ SX0 @ SX1 )
           != ( unordered_pair @ SX2 @ SX1 ) )
          | ~ ( member @ ( ordered_pair @ SX0 @ SX2 ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( SX0 = SX2 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[439]) ).

thf(504,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( restrict @ SX0 @ ( singleton @ SX1 ) @ universal_class )
           != null_class )
          | ~ ( member @ SX1 @ ( domain_of @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[354]) ).

thf(505,plain,
    ! [SV1: $i] :
      ( ( ! [SY299: $i,SY300: $i] :
            ( ~ ( subclass @ SV1 @ SY299 )
            | ~ ( member @ SY300 @ SV1 )
            | ( member @ SY300 @ SY299 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[325]) ).

thf(506,plain,
    ! [SV2: $i] :
      ( ( ! [SY301: $i] :
            ( ( member @ ( not_subclass_element @ SV2 @ SY301 ) @ SV2 )
            | ( subclass @ SV2 @ SY301 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[326]) ).

thf(507,plain,
    ! [SV3: $i] :
      ( ( ! [SY302: $i] :
            ( ~ ( member @ ( not_subclass_element @ SV3 @ SY302 ) @ SY302 )
            | ( subclass @ SV3 @ SY302 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[327]) ).

thf(508,plain,
    ! [SV4: $i] :
      ( ( subclass @ SV4 @ universal_class )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[328]) ).

thf(509,plain,
    ! [SV5: $i] :
      ( ( ! [SY303: $i] :
            ( ~ ( subclass @ SV5 @ SY303 )
            | ~ ( subclass @ SY303 @ SV5 )
            | ( SV5 = SY303 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[331]) ).

thf(510,plain,
    ! [SV6: $i] :
      ( ( ! [SY304: $i,SY305: $i] :
            ( ~ ( member @ SV6 @ ( unordered_pair @ SY304 @ SY305 ) )
            | ( SV6 = SY304 )
            | ( SV6 = SY305 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[332]) ).

thf(511,plain,
    ! [SV7: $i] :
      ( ( ! [SY306: $i] :
            ( ~ ( member @ SV7 @ universal_class )
            | ( member @ SV7 @ ( unordered_pair @ SV7 @ SY306 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[333]) ).

thf(512,plain,
    ! [SV8: $i] :
      ( ( ! [SY307: $i] :
            ( ~ ( member @ SV8 @ universal_class )
            | ( member @ SV8 @ ( unordered_pair @ SY307 @ SV8 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[334]) ).

thf(513,plain,
    ! [SV9: $i] :
      ( ( ! [SY308: $i] : ( member @ ( unordered_pair @ SV9 @ SY308 ) @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[335]) ).

thf(514,plain,
    ! [SV10: $i] :
      ( ( ( unordered_pair @ SV10 @ SV10 )
        = ( singleton @ SV10 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[336]) ).

thf(515,plain,
    ! [SV11: $i] :
      ( ( ! [SY309: $i] :
            ( ( unordered_pair @ ( singleton @ SV11 ) @ ( unordered_pair @ SV11 @ ( singleton @ SY309 ) ) )
            = ( ordered_pair @ SV11 @ SY309 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[337]) ).

thf(516,plain,
    ! [SV12: $i] :
      ( ( ! [SY310: $i,SY311: $i,SY312: $i] :
            ( ~ ( member @ ( ordered_pair @ SV12 @ SY310 ) @ ( cross_product @ SY311 @ SY312 ) )
            | ( member @ SV12 @ SY311 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[338]) ).

thf(517,plain,
    ! [SV13: $i] :
      ( ( ! [SY313: $i,SY314: $i,SY315: $i] :
            ( ~ ( member @ ( ordered_pair @ SV13 @ SY313 ) @ ( cross_product @ SY314 @ SY315 ) )
            | ( member @ SY313 @ SY315 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[339]) ).

thf(518,plain,
    ! [SV14: $i] :
      ( ( ! [SY316: $i,SY317: $i,SY318: $i] :
            ( ~ ( member @ SV14 @ SY316 )
            | ~ ( member @ SY317 @ SY318 )
            | ( member @ ( ordered_pair @ SV14 @ SY317 ) @ ( cross_product @ SY316 @ SY318 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[340]) ).

thf(519,plain,
    ! [SV15: $i] :
      ( ( ! [SY319: $i,SY320: $i] :
            ( ~ ( member @ SV15 @ ( cross_product @ SY319 @ SY320 ) )
            | ( ( ordered_pair @ ( first @ SV15 ) @ ( second @ SV15 ) )
              = SV15 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[341]) ).

thf(520,plain,
    ! [SV16: $i] :
      ( ( ! [SY321: $i] :
            ( ~ ( member @ ( ordered_pair @ SV16 @ SY321 ) @ element_relation )
            | ( member @ SV16 @ SY321 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[343]) ).

thf(521,plain,
    ! [SV17: $i] :
      ( ( ! [SY322: $i] :
            ( ~ ( member @ ( ordered_pair @ SV17 @ SY322 ) @ ( cross_product @ universal_class @ universal_class ) )
            | ~ ( member @ SV17 @ SY322 )
            | ( member @ ( ordered_pair @ SV17 @ SY322 ) @ element_relation ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[344]) ).

thf(522,plain,
    ! [SV18: $i] :
      ( ( ! [SY323: $i,SY324: $i] :
            ( ~ ( member @ SV18 @ ( intersection @ SY323 @ SY324 ) )
            | ( member @ SV18 @ SY323 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[345]) ).

thf(523,plain,
    ! [SV19: $i] :
      ( ( ! [SY325: $i,SY326: $i] :
            ( ~ ( member @ SV19 @ ( intersection @ SY325 @ SY326 ) )
            | ( member @ SV19 @ SY326 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[346]) ).

thf(524,plain,
    ! [SV20: $i] :
      ( ( ! [SY327: $i,SY328: $i] :
            ( ~ ( member @ SV20 @ SY327 )
            | ~ ( member @ SV20 @ SY328 )
            | ( member @ SV20 @ ( intersection @ SY327 @ SY328 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[347]) ).

thf(525,plain,
    ! [SV21: $i] :
      ( ( ! [SY329: $i] :
            ( ~ ( member @ SV21 @ ( complement @ SY329 ) )
            | ~ ( member @ SV21 @ SY329 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[348]) ).

thf(526,plain,
    ! [SV22: $i] :
      ( ( ! [SY330: $i] :
            ( ~ ( member @ SV22 @ universal_class )
            | ( member @ SV22 @ ( complement @ SY330 ) )
            | ( member @ SV22 @ SY330 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[349]) ).

thf(527,plain,
    ! [SV23: $i] :
      ( ( ! [SY331: $i] :
            ( ( complement @ ( intersection @ ( complement @ SV23 ) @ ( complement @ SY331 ) ) )
            = ( union @ SV23 @ SY331 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[350]) ).

thf(528,plain,
    ! [SV24: $i] :
      ( ( ! [SY332: $i] :
            ( ( intersection @ ( complement @ ( intersection @ SV24 @ SY332 ) ) @ ( complement @ ( intersection @ ( complement @ SV24 ) @ ( complement @ SY332 ) ) ) )
            = ( symmetric_difference @ SV24 @ SY332 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[351]) ).

thf(529,plain,
    ! [SV25: $i] :
      ( ( ! [SY333: $i,SY334: $i] :
            ( ( intersection @ SV25 @ ( cross_product @ SY333 @ SY334 ) )
            = ( restrict @ SV25 @ SY333 @ SY334 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[352]) ).

thf(530,plain,
    ! [SV26: $i] :
      ( ( ! [SY335: $i,SY336: $i] :
            ( ( intersection @ ( cross_product @ SV26 @ SY335 ) @ SY336 )
            = ( restrict @ SY336 @ SV26 @ SY335 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[353]) ).

thf(531,plain,
    ! [SV27: $i] :
      ( ( ! [SY337: $i] :
            ( ~ ( member @ SV27 @ universal_class )
            | ( ( restrict @ SY337 @ ( singleton @ SV27 ) @ universal_class )
              = null_class )
            | ( member @ SV27 @ ( domain_of @ SY337 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[355]) ).

thf(532,plain,
    ! [SV28: $i] :
      ( ( subclass @ ( rotate @ SV28 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[356]) ).

thf(533,plain,
    ! [SV29: $i] :
      ( ( ! [SY338: $i,SY339: $i,SY340: $i] :
            ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV29 @ SY338 ) @ SY339 ) @ ( rotate @ SY340 ) )
            | ( member @ ( ordered_pair @ ( ordered_pair @ SY338 @ SY339 ) @ SV29 ) @ SY340 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[357]) ).

thf(534,plain,
    ! [SV30: $i] :
      ( ( ! [SY341: $i,SY342: $i,SY343: $i] :
            ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV30 @ SY341 ) @ SY342 ) @ SY343 )
            | ~ ( member @ ( ordered_pair @ ( ordered_pair @ SY342 @ SV30 ) @ SY341 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
            | ( member @ ( ordered_pair @ ( ordered_pair @ SY342 @ SV30 ) @ SY341 ) @ ( rotate @ SY343 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[358]) ).

thf(535,plain,
    ! [SV31: $i] :
      ( ( subclass @ ( flip @ SV31 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[359]) ).

thf(536,plain,
    ! [SV32: $i] :
      ( ( ! [SY344: $i,SY345: $i,SY346: $i] :
            ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV32 @ SY344 ) @ SY345 ) @ ( flip @ SY346 ) )
            | ( member @ ( ordered_pair @ ( ordered_pair @ SY344 @ SV32 ) @ SY345 ) @ SY346 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[360]) ).

thf(537,plain,
    ! [SV33: $i] :
      ( ( ! [SY347: $i,SY348: $i,SY349: $i] :
            ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV33 @ SY347 ) @ SY348 ) @ SY349 )
            | ~ ( member @ ( ordered_pair @ ( ordered_pair @ SY347 @ SV33 ) @ SY348 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
            | ( member @ ( ordered_pair @ ( ordered_pair @ SY347 @ SV33 ) @ SY348 ) @ ( flip @ SY349 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[361]) ).

thf(538,plain,
    ! [SV34: $i] :
      ( ( ( domain_of @ ( flip @ ( cross_product @ SV34 @ universal_class ) ) )
        = ( inverse @ SV34 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[362]) ).

thf(539,plain,
    ! [SV35: $i] :
      ( ( ( domain_of @ ( inverse @ SV35 ) )
        = ( range_of @ SV35 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[363]) ).

thf(540,plain,
    ! [SV36: $i] :
      ( ( ! [SY350: $i,SY351: $i] :
            ( ( first @ ( not_subclass_element @ ( restrict @ SV36 @ SY350 @ ( singleton @ SY351 ) ) @ null_class ) )
            = ( domain @ SV36 @ SY350 @ SY351 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[364]) ).

thf(541,plain,
    ! [SV37: $i] :
      ( ( ! [SY352: $i,SY353: $i] :
            ( ( second @ ( not_subclass_element @ ( restrict @ SV37 @ ( singleton @ SY352 ) @ SY353 ) @ null_class ) )
            = ( range @ SV37 @ SY352 @ SY353 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[365]) ).

thf(542,plain,
    ! [SV38: $i] :
      ( ( ! [SY354: $i] :
            ( ( range_of @ ( restrict @ SV38 @ SY354 @ universal_class ) )
            = ( image @ SV38 @ SY354 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[366]) ).

thf(543,plain,
    ! [SV39: $i] :
      ( ( ( union @ SV39 @ ( singleton @ SV39 ) )
        = ( successor @ SV39 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[367]) ).

thf(544,plain,
    ! [SV40: $i] :
      ( ( ! [SY355: $i] :
            ( ~ ( member @ ( ordered_pair @ SV40 @ SY355 ) @ successor_relation )
            | ( ( successor @ SV40 )
              = SY355 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[369]) ).

thf(545,plain,
    ! [SV41: $i] :
      ( ( ~ ( inductive @ SV41 )
        | ( member @ null_class @ SV41 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[371]) ).

thf(546,plain,
    ! [SV42: $i] :
      ( ( ~ ( inductive @ SV42 )
        | ( subclass @ ( image @ successor_relation @ SV42 ) @ SV42 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[372]) ).

thf(547,plain,
    ! [SV43: $i] :
      ( ( ~ ( member @ null_class @ SV43 )
        | ~ ( subclass @ ( image @ successor_relation @ SV43 ) @ SV43 )
        | ( inductive @ SV43 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[373]) ).

thf(548,plain,
    ! [SV44: $i] :
      ( ( ~ ( inductive @ SV44 )
        | ( subclass @ omega @ SV44 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[375]) ).

thf(549,plain,
    ! [SV45: $i] :
      ( ( ( domain_of @ ( restrict @ element_relation @ universal_class @ SV45 ) )
        = ( sum_class @ SV45 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[377]) ).

thf(550,plain,
    ! [SV46: $i] :
      ( ( ~ ( member @ SV46 @ universal_class )
        | ( member @ ( sum_class @ SV46 ) @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[378]) ).

thf(551,plain,
    ! [SV47: $i] :
      ( ( ( complement @ ( image @ element_relation @ ( complement @ SV47 ) ) )
        = ( power_class @ SV47 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[379]) ).

thf(552,plain,
    ! [SV48: $i] :
      ( ( ~ ( member @ SV48 @ universal_class )
        | ( member @ ( power_class @ SV48 ) @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[380]) ).

thf(553,plain,
    ! [SV49: $i] :
      ( ( ! [SY356: $i] : ( subclass @ ( compose @ SV49 @ SY356 ) @ ( cross_product @ universal_class @ universal_class ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[381]) ).

thf(554,plain,
    ! [SV50: $i] :
      ( ( ! [SY357: $i,SY358: $i,SY359: $i] :
            ( ~ ( member @ ( ordered_pair @ SV50 @ SY357 ) @ ( compose @ SY358 @ SY359 ) )
            | ( member @ SY357 @ ( image @ SY358 @ ( image @ SY359 @ ( singleton @ SV50 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[382]) ).

thf(555,plain,
    ! [SV51: $i] :
      ( ( ! [SY360: $i,SY361: $i,SY362: $i] :
            ( ~ ( member @ SV51 @ ( image @ SY360 @ ( image @ SY361 @ ( singleton @ SY362 ) ) ) )
            | ~ ( member @ ( ordered_pair @ SY362 @ SV51 ) @ ( cross_product @ universal_class @ universal_class ) )
            | ( member @ ( ordered_pair @ SY362 @ SV51 ) @ ( compose @ SY360 @ SY361 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[383]) ).

thf(556,plain,
    ! [SV52: $i] :
      ( ( ~ ( single_valued_class @ SV52 )
        | ( subclass @ ( compose @ SV52 @ ( inverse @ SV52 ) ) @ identity_relation ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[384]) ).

thf(557,plain,
    ! [SV53: $i] :
      ( ( ~ ( subclass @ ( compose @ SV53 @ ( inverse @ SV53 ) ) @ identity_relation )
        | ( single_valued_class @ SV53 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[385]) ).

thf(558,plain,
    ! [SV54: $i] :
      ( ( ~ ( function @ SV54 )
        | ( subclass @ SV54 @ ( cross_product @ universal_class @ universal_class ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[386]) ).

thf(559,plain,
    ! [SV55: $i] :
      ( ( ~ ( function @ SV55 )
        | ( subclass @ ( compose @ SV55 @ ( inverse @ SV55 ) ) @ identity_relation ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[387]) ).

thf(560,plain,
    ! [SV56: $i] :
      ( ( ~ ( subclass @ SV56 @ ( cross_product @ universal_class @ universal_class ) )
        | ~ ( subclass @ ( compose @ SV56 @ ( inverse @ SV56 ) ) @ identity_relation )
        | ( function @ SV56 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[388]) ).

thf(561,plain,
    ! [SV57: $i] :
      ( ( ! [SY363: $i] :
            ( ~ ( function @ SV57 )
            | ~ ( member @ SY363 @ universal_class )
            | ( member @ ( image @ SV57 @ SY363 ) @ universal_class ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[389]) ).

thf(562,plain,
    ! [SV58: $i] :
      ( ( ( SV58 = null_class )
        | ( member @ ( regular @ SV58 ) @ SV58 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[390]) ).

thf(563,plain,
    ! [SV59: $i] :
      ( ( ( SV59 = null_class )
        | ( ( intersection @ SV59 @ ( regular @ SV59 ) )
          = null_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[391]) ).

thf(564,plain,
    ! [SV60: $i] :
      ( ( ! [SY364: $i] :
            ( ( sum_class @ ( image @ SV60 @ ( singleton @ SY364 ) ) )
            = ( apply @ SV60 @ SY364 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[392]) ).

thf(565,plain,
    ! [SV61: $i] :
      ( ( ~ ( member @ SV61 @ universal_class )
        | ( SV61 = null_class )
        | ( member @ ( apply @ choice @ SV61 ) @ SV61 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[394]) ).

thf(566,plain,
    ! [SV62: $i] :
      ( ( ~ ( one_to_one @ SV62 )
        | ( function @ SV62 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[395]) ).

thf(567,plain,
    ! [SV63: $i] :
      ( ( ~ ( one_to_one @ SV63 )
        | ( function @ ( inverse @ SV63 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[396]) ).

thf(568,plain,
    ! [SV64: $i] :
      ( ( ~ ( function @ ( inverse @ SV64 ) )
        | ~ ( function @ SV64 )
        | ( one_to_one @ SV64 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[397]) ).

thf(569,plain,
    ! [SV65: $i] :
      ( ( ( complement @ ( domain_of @ ( intersection @ SV65 @ identity_relation ) ) )
        = ( diagonalise @ SV65 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[400]) ).

thf(570,plain,
    ! [SV66: $i] :
      ( ( ( intersection @ ( domain_of @ SV66 ) @ ( diagonalise @ ( compose @ ( inverse @ element_relation ) @ SV66 ) ) )
        = ( cantor @ SV66 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[401]) ).

thf(571,plain,
    ! [SV67: $i] :
      ( ( ~ ( operation @ SV67 )
        | ( function @ SV67 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[402]) ).

thf(572,plain,
    ! [SV68: $i] :
      ( ( ~ ( operation @ SV68 )
        | ( ( cross_product @ ( domain_of @ ( domain_of @ SV68 ) ) @ ( domain_of @ ( domain_of @ SV68 ) ) )
          = ( domain_of @ SV68 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[403]) ).

thf(573,plain,
    ! [SV69: $i] :
      ( ( ~ ( operation @ SV69 )
        | ( subclass @ ( range_of @ SV69 ) @ ( domain_of @ ( domain_of @ SV69 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[404]) ).

thf(574,plain,
    ! [SV70: $i] :
      ( ( ! [SY365: $i,SY366: $i] :
            ( ~ ( compatible @ SV70 @ SY365 @ SY366 )
            | ( function @ SV70 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[406]) ).

thf(575,plain,
    ! [SV71: $i] :
      ( ( ! [SY367: $i,SY368: $i] :
            ( ~ ( compatible @ SV71 @ SY367 @ SY368 )
            | ( ( domain_of @ ( domain_of @ SY367 ) )
              = ( domain_of @ SV71 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[407]) ).

thf(576,plain,
    ! [SV72: $i] :
      ( ( ! [SY369: $i,SY370: $i] :
            ( ~ ( compatible @ SV72 @ SY369 @ SY370 )
            | ( subclass @ ( range_of @ SV72 ) @ ( domain_of @ ( domain_of @ SY370 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[408]) ).

thf(577,plain,
    ! [SV73: $i] :
      ( ( ! [SY371: $i,SY372: $i] :
            ( ~ ( homomorphism @ SV73 @ SY371 @ SY372 )
            | ( operation @ SY371 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[410]) ).

thf(578,plain,
    ! [SV74: $i] :
      ( ( ! [SY373: $i,SY374: $i] :
            ( ~ ( homomorphism @ SV74 @ SY373 @ SY374 )
            | ( operation @ SY374 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[411]) ).

thf(579,plain,
    ! [SV75: $i] :
      ( ( ! [SY375: $i,SY376: $i] :
            ( ~ ( homomorphism @ SV75 @ SY375 @ SY376 )
            | ( compatible @ SV75 @ SY375 @ SY376 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[412]) ).

thf(580,plain,
    ! [SV76: $i] :
      ( ( ! [SY377: $i,SY378: $i,SY379: $i,SY380: $i] :
            ( ~ ( homomorphism @ SV76 @ SY377 @ SY378 )
            | ~ ( member @ ( ordered_pair @ SY379 @ SY380 ) @ ( domain_of @ SY377 ) )
            | ( ( apply @ SY378 @ ( ordered_pair @ ( apply @ SV76 @ SY379 ) @ ( apply @ SV76 @ SY380 ) ) )
              = ( apply @ SV76 @ ( apply @ SY377 @ ( ordered_pair @ SY379 @ SY380 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[413]) ).

thf(581,plain,
    ! [SV77: $i] :
      ( ( ! [SY381: $i,SY382: $i] :
            ( ~ ( operation @ SV77 )
            | ~ ( operation @ SY381 )
            | ~ ( compatible @ SY382 @ SV77 @ SY381 )
            | ( member @ ( ordered_pair @ ( not_homomorphism1 @ SY382 @ SV77 @ SY381 ) @ ( not_homomorphism2 @ SY382 @ SV77 @ SY381 ) ) @ ( domain_of @ SV77 ) )
            | ( homomorphism @ SY382 @ SV77 @ SY381 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[414]) ).

thf(582,plain,
    ! [SV78: $i] :
      ( ( ! [SY383: $i,SY384: $i,SY385: $i] :
            ( ~ ( member @ ( ordered_pair @ SV78 @ SY383 ) @ ( cross_product @ SY384 @ SY385 ) )
            | ( member @ SV78 @ ( unordered_pair @ SV78 @ SY383 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[416]) ).

thf(583,plain,
    ! [SV79: $i] :
      ( ( ! [SY386: $i,SY387: $i,SY388: $i] :
            ( ~ ( member @ ( ordered_pair @ SV79 @ SY386 ) @ ( cross_product @ SY387 @ SY388 ) )
            | ( member @ SY386 @ ( unordered_pair @ SV79 @ SY386 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[417]) ).

thf(584,plain,
    ! [SV80: $i] :
      ( ( ! [SY389: $i,SY390: $i,SY391: $i] :
            ( ~ ( member @ ( ordered_pair @ SV80 @ SY389 ) @ ( cross_product @ SY390 @ SY391 ) )
            | ( member @ SV80 @ universal_class ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[418]) ).

thf(585,plain,
    ! [SV81: $i] :
      ( ( ! [SY392: $i,SY393: $i,SY394: $i] :
            ( ~ ( member @ ( ordered_pair @ SV81 @ SY392 ) @ ( cross_product @ SY393 @ SY394 ) )
            | ( member @ SY392 @ universal_class ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[419]) ).

thf(586,plain,
    ! [SV82: $i] :
      ( ( subclass @ SV82 @ SV82 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[420]) ).

thf(587,plain,
    ! [SV83: $i] :
      ( ( ! [SY395: $i,SY396: $i] :
            ( ~ ( subclass @ SV83 @ SY395 )
            | ~ ( subclass @ SY395 @ SY396 )
            | ( subclass @ SV83 @ SY396 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[421]) ).

thf(588,plain,
    ! [SV84: $i] :
      ( ( ! [SY397: $i] :
            ( ( SV84 = SY397 )
            | ( member @ ( not_subclass_element @ SV84 @ SY397 ) @ SV84 )
            | ( member @ ( not_subclass_element @ SY397 @ SV84 ) @ SY397 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[422]) ).

thf(589,plain,
    ! [SV85: $i] :
      ( ( ! [SY398: $i] :
            ( ~ ( member @ ( not_subclass_element @ SV85 @ SY398 ) @ SY398 )
            | ( SV85 = SY398 )
            | ( member @ ( not_subclass_element @ SY398 @ SV85 ) @ SY398 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[423]) ).

thf(590,plain,
    ! [SV86: $i] :
      ( ( ! [SY399: $i] :
            ( ~ ( member @ ( not_subclass_element @ SV86 @ SY399 ) @ SY399 )
            | ( SY399 = SV86 )
            | ( member @ ( not_subclass_element @ SY399 @ SV86 ) @ SY399 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[424]) ).

thf(591,plain,
    ! [SV87: $i] :
      ( ( ! [SY400: $i] :
            ( ~ ( member @ ( not_subclass_element @ SV87 @ SY400 ) @ SY400 )
            | ~ ( member @ ( not_subclass_element @ SY400 @ SV87 ) @ SV87 )
            | ( SV87 = SY400 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[425]) ).

thf(592,plain,
    ! [SV88: $i] :
      ( ( ! [SY401: $i] :
            ~ ( member @ SV88 @ ( intersection @ ( complement @ SY401 ) @ SY401 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[426]) ).

thf(593,plain,
    ! [SV89: $i] :
      ( ( ~ ( member @ SV89 @ null_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[427]) ).

thf(594,plain,
    ! [SV90: $i] :
      ( ( subclass @ null_class @ SV90 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[428]) ).

thf(595,plain,
    ! [SV91: $i] :
      ( ( ~ ( subclass @ SV91 @ null_class )
        | ( SV91 = null_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[429]) ).

thf(596,plain,
    ! [SV92: $i] :
      ( ( ( SV92 = null_class )
        | ( member @ ( not_subclass_element @ SV92 @ null_class ) @ SV92 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[430]) ).

thf(597,plain,
    ! [SV93: $i] :
      ( ( ! [SY402: $i] :
            ( ( unordered_pair @ SV93 @ SY402 )
            = ( unordered_pair @ SY402 @ SV93 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[432]) ).

thf(598,plain,
    ! [SV94: $i] :
      ( ( ! [SY403: $i] : ( subclass @ ( singleton @ SV94 ) @ ( unordered_pair @ SV94 @ SY403 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[433]) ).

thf(599,plain,
    ! [SV95: $i] :
      ( ( ! [SY404: $i] : ( subclass @ ( singleton @ SV95 ) @ ( unordered_pair @ SY404 @ SV95 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[434]) ).

thf(600,plain,
    ! [SV96: $i] :
      ( ( ! [SY405: $i] :
            ( ( member @ SV96 @ universal_class )
            | ( ( unordered_pair @ SY405 @ SV96 )
              = ( singleton @ SY405 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[435]) ).

thf(601,plain,
    ! [SV97: $i] :
      ( ( ! [SY406: $i] :
            ( ( member @ SV97 @ universal_class )
            | ( ( unordered_pair @ SV97 @ SY406 )
              = ( singleton @ SY406 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[436]) ).

thf(602,plain,
    ! [SV98: $i] :
      ( ( ! [SY407: $i] :
            ( ( ( unordered_pair @ SV98 @ SY407 )
              = null_class )
            | ( member @ SV98 @ universal_class )
            | ( member @ SY407 @ universal_class ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[437]) ).

thf(603,plain,
    ! [SV99: $i] :
      ( ( ! [SY408: $i,SY409: $i] :
            ( ~ ( member @ SV99 @ SY408 )
            | ~ ( member @ SY409 @ SY408 )
            | ( subclass @ ( unordered_pair @ SV99 @ SY409 ) @ SY408 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[443]) ).

thf(604,plain,
    ! [SV100: $i] :
      ( ( member @ ( singleton @ SV100 ) @ universal_class )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[444]) ).

thf(605,plain,
    ! [SV101: $i] :
      ( ( ! [SY410: $i] : ( member @ ( singleton @ SV101 ) @ ( unordered_pair @ SY410 @ ( singleton @ SV101 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[445]) ).

thf(606,plain,
    ! [SV102: $i] :
      ( ( ~ ( member @ SV102 @ universal_class )
        | ( member @ SV102 @ ( singleton @ SV102 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[446]) ).

thf(607,plain,
    ! [SV103: $i] :
      ( ( ! [SY411: $i] :
            ( ~ ( member @ SV103 @ ( singleton @ SY411 ) )
            | ( SV103 = SY411 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[449]) ).

thf(608,plain,
    ! [SV104: $i] :
      ( ( ( member @ SV104 @ universal_class )
        | ( ( singleton @ SV104 )
          = null_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[450]) ).

thf(609,plain,
    ! [SV105: $i] :
      ( ( ~ ( member @ SV105 @ universal_class )
        | ( member @ ( member_of @ ( singleton @ SV105 ) ) @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[454]) ).

thf(610,plain,
    ! [SV106: $i] :
      ( ( ~ ( member @ SV106 @ universal_class )
        | ( ( singleton @ ( member_of @ ( singleton @ SV106 ) ) )
          = ( singleton @ SV106 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[455]) ).

thf(611,plain,
    ! [SV107: $i] :
      ( ( ( member @ ( member_of @ SV107 ) @ universal_class )
        | ( ( member_of @ SV107 )
          = SV107 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[456]) ).

thf(612,plain,
    ! [SV108: $i] :
      ( ( ( ( singleton @ ( member_of @ SV108 ) )
          = SV108 )
        | ( ( member_of @ SV108 )
          = SV108 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[457]) ).

thf(613,plain,
    ! [SV109: $i] :
      ( ( ~ ( member @ SV109 @ universal_class )
        | ( ( member_of @ ( singleton @ SV109 ) )
          = SV109 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[458]) ).

thf(614,plain,
    ! [SV110: $i] :
      ( ( ( member @ ( member_of1 @ SV110 ) @ universal_class )
        | ( ( member_of @ SV110 )
          = SV110 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[459]) ).

thf(615,plain,
    ! [SV111: $i] :
      ( ( ( ( singleton @ ( member_of1 @ SV111 ) )
          = SV111 )
        | ( ( member_of @ SV111 )
          = SV111 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[460]) ).

thf(616,plain,
    ! [SV112: $i] :
      ( ( ! [SY412: $i] :
            ( ~ ( member @ SV112 @ SY412 )
            | ( subclass @ ( singleton @ SV112 ) @ SY412 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[463]) ).

thf(617,plain,
    ! [SV113: $i] :
      ( ( ! [SY413: $i] :
            ( ~ ( subclass @ SV113 @ ( singleton @ SY413 ) )
            | ( SV113 = null_class )
            | ( ( singleton @ SY413 )
              = SV113 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[464]) ).

thf(618,plain,
    ! [SV114: $i] :
      ( ( ( member @ ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ SV114 @ null_class ) ) ) @ SV114 ) @ null_class ) @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ SV114 @ null_class ) ) ) @ SV114 ) )
        | ( ( singleton @ ( not_subclass_element @ SV114 @ null_class ) )
          = SV114 )
        | ( SV114 = null_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[465]) ).

thf(619,plain,
    ! [SV115: $i] :
      ( ( ( member @ ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ SV115 @ null_class ) ) ) @ SV115 ) @ null_class ) @ SV115 )
        | ( ( singleton @ ( not_subclass_element @ SV115 @ null_class ) )
          = SV115 )
        | ( SV115 = null_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[466]) ).

thf(620,plain,
    ! [SV116: $i] :
      ( ( ! [SY414: $i] :
            ( ( unordered_pair @ SV116 @ SY414 )
            = ( union @ ( singleton @ SV116 ) @ ( singleton @ SY414 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[468]) ).

thf(621,plain,
    ! [SV117: $i] :
      ( ( ! [SY415: $i] : ( member @ ( ordered_pair @ SV117 @ SY415 ) @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[469]) ).

thf(622,plain,
    ! [SV118: $i] :
      ( ( ! [SY416: $i] : ( member @ ( singleton @ SV118 ) @ ( ordered_pair @ SV118 @ SY416 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[470]) ).

thf(623,plain,
    ! [SV119: $i] :
      ( ( ! [SY417: $i] : ( member @ ( unordered_pair @ SV119 @ ( singleton @ SY417 ) ) @ ( ordered_pair @ SV119 @ SY417 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[471]) ).

thf(624,plain,
    ! [SV120: $i] :
      ( ( ! [SY418: $i] :
            ( ( ( unordered_pair @ ( singleton @ SV120 ) @ ( unordered_pair @ SV120 @ null_class ) )
              = ( ordered_pair @ SV120 @ SY418 ) )
            | ( member @ SY418 @ universal_class ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[472]) ).

thf(625,plain,
    ! [SV121: $i] :
      ( ( ! [SY419: $i] :
            ( ~ ( member @ SV121 @ universal_class )
            | ( ( unordered_pair @ null_class @ ( singleton @ ( singleton @ SV121 ) ) )
              = ( ordered_pair @ SY419 @ SV121 ) )
            | ( member @ SY419 @ universal_class ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[473]) ).

thf(626,plain,
    ! [SV122: $i] :
      ( ( ! [SY420: $i] :
            ( ( ( unordered_pair @ null_class @ ( singleton @ null_class ) )
              = ( ordered_pair @ SV122 @ SY420 ) )
            | ( member @ SV122 @ universal_class )
            | ( member @ SY420 @ universal_class ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[474]) ).

thf(627,plain,
    ! [SV123: $i] :
      ( ( ! [SY421: $i] :
            ( ~ ( member @ ( ordered_pair @ SV123 @ SY421 ) @ ( cross_product @ universal_class @ universal_class ) )
            | ( member @ ( ordered_pair @ ( first @ ( ordered_pair @ SV123 @ SY421 ) ) @ ( second @ ( ordered_pair @ SV123 @ SY421 ) ) ) @ ( cross_product @ universal_class @ universal_class ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[477]) ).

thf(628,plain,
    ! [SV124: $i] :
      ( ( ( member @ ( ordered_pair @ ( first @ SV124 ) @ ( second @ SV124 ) ) @ ( cross_product @ universal_class @ universal_class ) )
        | ( ( first @ SV124 )
          = SV124 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[478]) ).

thf(629,plain,
    ! [SV125: $i] :
      ( ( ( member @ ( ordered_pair @ ( first @ SV125 ) @ ( second @ SV125 ) ) @ ( cross_product @ universal_class @ universal_class ) )
        | ( ( second @ SV125 )
          = SV125 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[479]) ).

thf(630,plain,
    ! [SV126: $i] :
      ( ( ( ( ordered_pair @ ( first @ SV126 ) @ ( second @ SV126 ) )
          = SV126 )
        | ( ( first @ SV126 )
          = SV126 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[480]) ).

thf(631,plain,
    ! [SV127: $i] :
      ( ( ( ( ordered_pair @ ( first @ SV127 ) @ ( second @ SV127 ) )
          = SV127 )
        | ( ( second @ SV127 )
          = SV127 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[481]) ).

thf(632,plain,
    $false = $false,
    inference(extcnf_not_pos,[status(thm)],[482]) ).

thf(633,plain,
    ! [SV128: $i] :
      ( ( ! [SY422: $i] :
            ( ( ( singleton @ SV128 )
             != ( singleton @ SY422 ) )
            | ~ ( member @ SV128 @ universal_class )
            | ( SV128 = SY422 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[483]) ).

thf(634,plain,
    ! [SV129: $i] :
      ( ( ! [SY423: $i,SY424: $i,SY425: $i] :
            ( ~ ( member @ ( ordered_pair @ SV129 @ SY423 ) @ ( cross_product @ SY424 @ SY425 ) )
            | ( ( unordered_pair @ SV129 @ SY423 )
             != null_class ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[484]) ).

thf(635,plain,
    ! [SV130: $i] :
      ( ( ! [SY426: $i] :
            ( ( ( singleton @ ( member_of @ SV130 ) )
             != SV130 )
            | ~ ( member @ SY426 @ SV130 )
            | ( ( member_of @ SV130 )
              = SY426 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[485]) ).

thf(636,plain,
    ! [SV131: $i] :
      ( ( ( ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ SV131 @ null_class ) ) ) @ SV131 ) @ null_class )
         != ( not_subclass_element @ SV131 @ null_class ) )
        | ( ( singleton @ ( not_subclass_element @ SV131 @ null_class ) )
          = SV131 )
        | ( SV131 = null_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[486]) ).

thf(637,plain,
    ! [SV132: $i] :
      ( ( ! [SY427: $i,SY428: $i] :
            ( ( ( unordered_pair @ SV132 @ SY427 )
             != ( unordered_pair @ SV132 @ SY428 ) )
            | ~ ( member @ ( ordered_pair @ SY427 @ SY428 ) @ ( cross_product @ universal_class @ universal_class ) )
            | ( SY427 = SY428 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[487]) ).

thf(638,plain,
    ! [SV133: $i] :
      ( ( ! [SY429: $i,SY430: $i] :
            ( ~ ( function @ SV133 )
            | ( ( domain_of @ ( domain_of @ SY429 ) )
             != ( domain_of @ SV133 ) )
            | ~ ( subclass @ ( range_of @ SV133 ) @ ( domain_of @ ( domain_of @ SY430 ) ) )
            | ( compatible @ SV133 @ SY429 @ SY430 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[488]) ).

thf(639,plain,
    ! [SV134: $i] :
      ( ( ! [SY431: $i] :
            ( ( SV134 != SY431 )
            | ( subclass @ SV134 @ SY431 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[489]) ).

thf(640,plain,
    ! [SV135: $i] :
      ( ( ! [SY432: $i] :
            ( ~ ( member @ SV135 @ universal_class )
            | ( ( unordered_pair @ SV135 @ SY432 )
             != null_class ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[490]) ).

thf(641,plain,
    ! [SV136: $i] :
      ( ( ~ ( function @ SV136 )
        | ( ( cross_product @ ( domain_of @ ( domain_of @ SV136 ) ) @ ( domain_of @ ( domain_of @ SV136 ) ) )
         != ( domain_of @ SV136 ) )
        | ~ ( subclass @ ( range_of @ SV136 ) @ ( domain_of @ ( domain_of @ SV136 ) ) )
        | ( operation @ SV136 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[491]) ).

thf(642,plain,
    ! [SV137: $i] :
      ( ( ! [SY433: $i] :
            ( ( ( successor @ SV137 )
             != SY433 )
            | ~ ( member @ ( ordered_pair @ SV137 @ SY433 ) @ ( cross_product @ universal_class @ universal_class ) )
            | ( member @ ( ordered_pair @ SV137 @ SY433 ) @ successor_relation ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[492]) ).

thf(643,plain,
    ! [SV138: $i] :
      ( ( ! [SY434: $i,SY435: $i,SY436: $i] :
            ( ( ( ordered_pair @ SV138 @ SY434 )
             != ( ordered_pair @ SY435 @ SY436 ) )
            | ~ ( member @ SV138 @ universal_class )
            | ( SV138 = SY435 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[493]) ).

thf(644,plain,
    ! [SV139: $i] :
      ( ( ! [SY437: $i,SY438: $i] :
            ( ( ( unordered_pair @ SV139 @ SY437 )
             != ( singleton @ SY438 ) )
            | ~ ( member @ SY438 @ universal_class )
            | ( SY438 = SV139 )
            | ( SY438 = SY437 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[494]) ).

thf(645,plain,
    ! [SV140: $i] :
      ( ( ! [SY439: $i] :
            ( ( ( singleton @ SV140 )
             != ( singleton @ SY439 ) )
            | ~ ( member @ SY439 @ universal_class )
            | ( SV140 = SY439 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[495]) ).

thf(646,plain,
    ! [SV141: $i] :
      ( ( ~ ( member @ SV141 @ universal_class )
        | ( ( singleton @ SV141 )
         != null_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[496]) ).

thf(647,plain,
    ( ( ( first @ ( ordered_pair @ u @ v ) )
      = u )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[497]) ).

thf(648,plain,
    ! [SV142: $i] :
      ( ( ( ( singleton @ ( member_of @ SV142 ) )
         != SV142 )
        | ( member @ SV142 @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[498]) ).

thf(649,plain,
    ! [SV143: $i] :
      ( ( ! [SY440: $i,SY441: $i] :
            ( ~ ( operation @ SV143 )
            | ~ ( operation @ SY440 )
            | ~ ( compatible @ SY441 @ SV143 @ SY440 )
            | ( ( apply @ SY440 @ ( ordered_pair @ ( apply @ SY441 @ ( not_homomorphism1 @ SY441 @ SV143 @ SY440 ) ) @ ( apply @ SY441 @ ( not_homomorphism2 @ SY441 @ SV143 @ SY440 ) ) ) )
             != ( apply @ SY441 @ ( apply @ SV143 @ ( ordered_pair @ ( not_homomorphism1 @ SY441 @ SV143 @ SY440 ) @ ( not_homomorphism2 @ SY441 @ SV143 @ SY440 ) ) ) ) )
            | ( homomorphism @ SY441 @ SV143 @ SY440 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[499]) ).

thf(650,plain,
    ! [SV144: $i] :
      ( ( ! [SY442: $i,SY443: $i,SY444: $i] :
            ( ( ( ordered_pair @ SV144 @ SY442 )
             != ( ordered_pair @ SY443 @ SY444 ) )
            | ~ ( member @ SY442 @ universal_class )
            | ( SY442 = SY444 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[500]) ).

thf(651,plain,
    ! [SV145: $i] :
      ( ( ! [SY445: $i] :
            ( ~ ( member @ SV145 @ universal_class )
            | ( ( unordered_pair @ SY445 @ SV145 )
             != null_class ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[501]) ).

thf(652,plain,
    ! [SV146: $i] :
      ( ( ! [SY446: $i] :
            ( ( SV146 != SY446 )
            | ( subclass @ SY446 @ SV146 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[502]) ).

thf(653,plain,
    ! [SV147: $i] :
      ( ( ! [SY447: $i,SY448: $i] :
            ( ( ( unordered_pair @ SV147 @ SY447 )
             != ( unordered_pair @ SY448 @ SY447 ) )
            | ~ ( member @ ( ordered_pair @ SV147 @ SY448 ) @ ( cross_product @ universal_class @ universal_class ) )
            | ( SV147 = SY448 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[503]) ).

thf(654,plain,
    ! [SV148: $i] :
      ( ( ! [SY449: $i] :
            ( ( ( restrict @ SV148 @ ( singleton @ SY449 ) @ universal_class )
             != null_class )
            | ~ ( member @ SY449 @ ( domain_of @ SV148 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[504]) ).

thf(655,plain,
    ! [SV149: $i,SV1: $i] :
      ( ( ! [SY450: $i] :
            ( ~ ( subclass @ SV1 @ SV149 )
            | ~ ( member @ SY450 @ SV1 )
            | ( member @ SY450 @ SV149 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[505]) ).

thf(656,plain,
    ! [SV150: $i,SV2: $i] :
      ( ( ( member @ ( not_subclass_element @ SV2 @ SV150 ) @ SV2 )
        | ( subclass @ SV2 @ SV150 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[506]) ).

thf(657,plain,
    ! [SV151: $i,SV3: $i] :
      ( ( ~ ( member @ ( not_subclass_element @ SV3 @ SV151 ) @ SV151 )
        | ( subclass @ SV3 @ SV151 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[507]) ).

thf(658,plain,
    ! [SV152: $i,SV5: $i] :
      ( ( ~ ( subclass @ SV5 @ SV152 )
        | ~ ( subclass @ SV152 @ SV5 )
        | ( SV5 = SV152 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[509]) ).

thf(659,plain,
    ! [SV153: $i,SV6: $i] :
      ( ( ! [SY451: $i] :
            ( ~ ( member @ SV6 @ ( unordered_pair @ SV153 @ SY451 ) )
            | ( SV6 = SV153 )
            | ( SV6 = SY451 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[510]) ).

thf(660,plain,
    ! [SV154: $i,SV7: $i] :
      ( ( ~ ( member @ SV7 @ universal_class )
        | ( member @ SV7 @ ( unordered_pair @ SV7 @ SV154 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[511]) ).

thf(661,plain,
    ! [SV155: $i,SV8: $i] :
      ( ( ~ ( member @ SV8 @ universal_class )
        | ( member @ SV8 @ ( unordered_pair @ SV155 @ SV8 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[512]) ).

thf(662,plain,
    ! [SV156: $i,SV9: $i] :
      ( ( member @ ( unordered_pair @ SV9 @ SV156 ) @ universal_class )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[513]) ).

thf(663,plain,
    ! [SV157: $i,SV11: $i] :
      ( ( ( unordered_pair @ ( singleton @ SV11 ) @ ( unordered_pair @ SV11 @ ( singleton @ SV157 ) ) )
        = ( ordered_pair @ SV11 @ SV157 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[515]) ).

thf(664,plain,
    ! [SV158: $i,SV12: $i] :
      ( ( ! [SY452: $i,SY453: $i] :
            ( ~ ( member @ ( ordered_pair @ SV12 @ SV158 ) @ ( cross_product @ SY452 @ SY453 ) )
            | ( member @ SV12 @ SY452 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[516]) ).

thf(665,plain,
    ! [SV159: $i,SV13: $i] :
      ( ( ! [SY454: $i,SY455: $i] :
            ( ~ ( member @ ( ordered_pair @ SV13 @ SV159 ) @ ( cross_product @ SY454 @ SY455 ) )
            | ( member @ SV159 @ SY455 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[517]) ).

thf(666,plain,
    ! [SV160: $i,SV14: $i] :
      ( ( ! [SY456: $i,SY457: $i] :
            ( ~ ( member @ SV14 @ SV160 )
            | ~ ( member @ SY456 @ SY457 )
            | ( member @ ( ordered_pair @ SV14 @ SY456 ) @ ( cross_product @ SV160 @ SY457 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[518]) ).

thf(667,plain,
    ! [SV161: $i,SV15: $i] :
      ( ( ! [SY458: $i] :
            ( ~ ( member @ SV15 @ ( cross_product @ SV161 @ SY458 ) )
            | ( ( ordered_pair @ ( first @ SV15 ) @ ( second @ SV15 ) )
              = SV15 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[519]) ).

thf(668,plain,
    ! [SV162: $i,SV16: $i] :
      ( ( ~ ( member @ ( ordered_pair @ SV16 @ SV162 ) @ element_relation )
        | ( member @ SV16 @ SV162 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[520]) ).

thf(669,plain,
    ! [SV163: $i,SV17: $i] :
      ( ( ~ ( member @ ( ordered_pair @ SV17 @ SV163 ) @ ( cross_product @ universal_class @ universal_class ) )
        | ~ ( member @ SV17 @ SV163 )
        | ( member @ ( ordered_pair @ SV17 @ SV163 ) @ element_relation ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[521]) ).

thf(670,plain,
    ! [SV164: $i,SV18: $i] :
      ( ( ! [SY459: $i] :
            ( ~ ( member @ SV18 @ ( intersection @ SV164 @ SY459 ) )
            | ( member @ SV18 @ SV164 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[522]) ).

thf(671,plain,
    ! [SV165: $i,SV19: $i] :
      ( ( ! [SY460: $i] :
            ( ~ ( member @ SV19 @ ( intersection @ SV165 @ SY460 ) )
            | ( member @ SV19 @ SY460 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[523]) ).

thf(672,plain,
    ! [SV166: $i,SV20: $i] :
      ( ( ! [SY461: $i] :
            ( ~ ( member @ SV20 @ SV166 )
            | ~ ( member @ SV20 @ SY461 )
            | ( member @ SV20 @ ( intersection @ SV166 @ SY461 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[524]) ).

thf(673,plain,
    ! [SV167: $i,SV21: $i] :
      ( ( ~ ( member @ SV21 @ ( complement @ SV167 ) )
        | ~ ( member @ SV21 @ SV167 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[525]) ).

thf(674,plain,
    ! [SV168: $i,SV22: $i] :
      ( ( ~ ( member @ SV22 @ universal_class )
        | ( member @ SV22 @ ( complement @ SV168 ) )
        | ( member @ SV22 @ SV168 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[526]) ).

thf(675,plain,
    ! [SV169: $i,SV23: $i] :
      ( ( ( complement @ ( intersection @ ( complement @ SV23 ) @ ( complement @ SV169 ) ) )
        = ( union @ SV23 @ SV169 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[527]) ).

thf(676,plain,
    ! [SV170: $i,SV24: $i] :
      ( ( ( intersection @ ( complement @ ( intersection @ SV24 @ SV170 ) ) @ ( complement @ ( intersection @ ( complement @ SV24 ) @ ( complement @ SV170 ) ) ) )
        = ( symmetric_difference @ SV24 @ SV170 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[528]) ).

thf(677,plain,
    ! [SV171: $i,SV25: $i] :
      ( ( ! [SY462: $i] :
            ( ( intersection @ SV25 @ ( cross_product @ SV171 @ SY462 ) )
            = ( restrict @ SV25 @ SV171 @ SY462 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[529]) ).

thf(678,plain,
    ! [SV172: $i,SV26: $i] :
      ( ( ! [SY463: $i] :
            ( ( intersection @ ( cross_product @ SV26 @ SV172 ) @ SY463 )
            = ( restrict @ SY463 @ SV26 @ SV172 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[530]) ).

thf(679,plain,
    ! [SV173: $i,SV27: $i] :
      ( ( ~ ( member @ SV27 @ universal_class )
        | ( ( restrict @ SV173 @ ( singleton @ SV27 ) @ universal_class )
          = null_class )
        | ( member @ SV27 @ ( domain_of @ SV173 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[531]) ).

thf(680,plain,
    ! [SV174: $i,SV29: $i] :
      ( ( ! [SY464: $i,SY465: $i] :
            ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV29 @ SV174 ) @ SY464 ) @ ( rotate @ SY465 ) )
            | ( member @ ( ordered_pair @ ( ordered_pair @ SV174 @ SY464 ) @ SV29 ) @ SY465 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[533]) ).

thf(681,plain,
    ! [SV175: $i,SV30: $i] :
      ( ( ! [SY466: $i,SY467: $i] :
            ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV30 @ SV175 ) @ SY466 ) @ SY467 )
            | ~ ( member @ ( ordered_pair @ ( ordered_pair @ SY466 @ SV30 ) @ SV175 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
            | ( member @ ( ordered_pair @ ( ordered_pair @ SY466 @ SV30 ) @ SV175 ) @ ( rotate @ SY467 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[534]) ).

thf(682,plain,
    ! [SV176: $i,SV32: $i] :
      ( ( ! [SY468: $i,SY469: $i] :
            ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV32 @ SV176 ) @ SY468 ) @ ( flip @ SY469 ) )
            | ( member @ ( ordered_pair @ ( ordered_pair @ SV176 @ SV32 ) @ SY468 ) @ SY469 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[536]) ).

thf(683,plain,
    ! [SV177: $i,SV33: $i] :
      ( ( ! [SY470: $i,SY471: $i] :
            ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV33 @ SV177 ) @ SY470 ) @ SY471 )
            | ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV177 @ SV33 ) @ SY470 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
            | ( member @ ( ordered_pair @ ( ordered_pair @ SV177 @ SV33 ) @ SY470 ) @ ( flip @ SY471 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[537]) ).

thf(684,plain,
    ! [SV178: $i,SV36: $i] :
      ( ( ! [SY472: $i] :
            ( ( first @ ( not_subclass_element @ ( restrict @ SV36 @ SV178 @ ( singleton @ SY472 ) ) @ null_class ) )
            = ( domain @ SV36 @ SV178 @ SY472 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[540]) ).

thf(685,plain,
    ! [SV179: $i,SV37: $i] :
      ( ( ! [SY473: $i] :
            ( ( second @ ( not_subclass_element @ ( restrict @ SV37 @ ( singleton @ SV179 ) @ SY473 ) @ null_class ) )
            = ( range @ SV37 @ SV179 @ SY473 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[541]) ).

thf(686,plain,
    ! [SV180: $i,SV38: $i] :
      ( ( ( range_of @ ( restrict @ SV38 @ SV180 @ universal_class ) )
        = ( image @ SV38 @ SV180 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[542]) ).

thf(687,plain,
    ! [SV181: $i,SV40: $i] :
      ( ( ~ ( member @ ( ordered_pair @ SV40 @ SV181 ) @ successor_relation )
        | ( ( successor @ SV40 )
          = SV181 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[544]) ).

thf(688,plain,
    ! [SV41: $i] :
      ( ( ( ~ ( inductive @ SV41 ) )
        = $true )
      | ( ( member @ null_class @ SV41 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[545]) ).

thf(689,plain,
    ! [SV42: $i] :
      ( ( ( ~ ( inductive @ SV42 ) )
        = $true )
      | ( ( subclass @ ( image @ successor_relation @ SV42 ) @ SV42 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[546]) ).

thf(690,plain,
    ! [SV43: $i] :
      ( ( ( ~ ( member @ null_class @ SV43 ) )
        = $true )
      | ( ( ~ ( subclass @ ( image @ successor_relation @ SV43 ) @ SV43 )
          | ( inductive @ SV43 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[547]) ).

thf(691,plain,
    ! [SV44: $i] :
      ( ( ( ~ ( inductive @ SV44 ) )
        = $true )
      | ( ( subclass @ omega @ SV44 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[548]) ).

thf(692,plain,
    ! [SV46: $i] :
      ( ( ( ~ ( member @ SV46 @ universal_class ) )
        = $true )
      | ( ( member @ ( sum_class @ SV46 ) @ universal_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[550]) ).

thf(693,plain,
    ! [SV48: $i] :
      ( ( ( ~ ( member @ SV48 @ universal_class ) )
        = $true )
      | ( ( member @ ( power_class @ SV48 ) @ universal_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[552]) ).

thf(694,plain,
    ! [SV182: $i,SV49: $i] :
      ( ( subclass @ ( compose @ SV49 @ SV182 ) @ ( cross_product @ universal_class @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[553]) ).

thf(695,plain,
    ! [SV183: $i,SV50: $i] :
      ( ( ! [SY474: $i,SY475: $i] :
            ( ~ ( member @ ( ordered_pair @ SV50 @ SV183 ) @ ( compose @ SY474 @ SY475 ) )
            | ( member @ SV183 @ ( image @ SY474 @ ( image @ SY475 @ ( singleton @ SV50 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[554]) ).

thf(696,plain,
    ! [SV184: $i,SV51: $i] :
      ( ( ! [SY476: $i,SY477: $i] :
            ( ~ ( member @ SV51 @ ( image @ SV184 @ ( image @ SY476 @ ( singleton @ SY477 ) ) ) )
            | ~ ( member @ ( ordered_pair @ SY477 @ SV51 ) @ ( cross_product @ universal_class @ universal_class ) )
            | ( member @ ( ordered_pair @ SY477 @ SV51 ) @ ( compose @ SV184 @ SY476 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[555]) ).

thf(697,plain,
    ! [SV52: $i] :
      ( ( ( ~ ( single_valued_class @ SV52 ) )
        = $true )
      | ( ( subclass @ ( compose @ SV52 @ ( inverse @ SV52 ) ) @ identity_relation )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[556]) ).

thf(698,plain,
    ! [SV53: $i] :
      ( ( ( ~ ( subclass @ ( compose @ SV53 @ ( inverse @ SV53 ) ) @ identity_relation ) )
        = $true )
      | ( ( single_valued_class @ SV53 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[557]) ).

thf(699,plain,
    ! [SV54: $i] :
      ( ( ( ~ ( function @ SV54 ) )
        = $true )
      | ( ( subclass @ SV54 @ ( cross_product @ universal_class @ universal_class ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[558]) ).

thf(700,plain,
    ! [SV55: $i] :
      ( ( ( ~ ( function @ SV55 ) )
        = $true )
      | ( ( subclass @ ( compose @ SV55 @ ( inverse @ SV55 ) ) @ identity_relation )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[559]) ).

thf(701,plain,
    ! [SV56: $i] :
      ( ( ( ~ ( subclass @ SV56 @ ( cross_product @ universal_class @ universal_class ) ) )
        = $true )
      | ( ( ~ ( subclass @ ( compose @ SV56 @ ( inverse @ SV56 ) ) @ identity_relation )
          | ( function @ SV56 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[560]) ).

thf(702,plain,
    ! [SV185: $i,SV57: $i] :
      ( ( ~ ( function @ SV57 )
        | ~ ( member @ SV185 @ universal_class )
        | ( member @ ( image @ SV57 @ SV185 ) @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[561]) ).

thf(703,plain,
    ! [SV58: $i] :
      ( ( ( SV58 = null_class )
        = $true )
      | ( ( member @ ( regular @ SV58 ) @ SV58 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[562]) ).

thf(704,plain,
    ! [SV59: $i] :
      ( ( ( SV59 = null_class )
        = $true )
      | ( ( ( intersection @ SV59 @ ( regular @ SV59 ) )
          = null_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[563]) ).

thf(705,plain,
    ! [SV186: $i,SV60: $i] :
      ( ( ( sum_class @ ( image @ SV60 @ ( singleton @ SV186 ) ) )
        = ( apply @ SV60 @ SV186 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[564]) ).

thf(706,plain,
    ! [SV61: $i] :
      ( ( ( ~ ( member @ SV61 @ universal_class ) )
        = $true )
      | ( ( ( SV61 = null_class )
          | ( member @ ( apply @ choice @ SV61 ) @ SV61 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[565]) ).

thf(707,plain,
    ! [SV62: $i] :
      ( ( ( ~ ( one_to_one @ SV62 ) )
        = $true )
      | ( ( function @ SV62 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[566]) ).

thf(708,plain,
    ! [SV63: $i] :
      ( ( ( ~ ( one_to_one @ SV63 ) )
        = $true )
      | ( ( function @ ( inverse @ SV63 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[567]) ).

thf(709,plain,
    ! [SV64: $i] :
      ( ( ( ~ ( function @ ( inverse @ SV64 ) ) )
        = $true )
      | ( ( ~ ( function @ SV64 )
          | ( one_to_one @ SV64 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[568]) ).

thf(710,plain,
    ! [SV67: $i] :
      ( ( ( ~ ( operation @ SV67 ) )
        = $true )
      | ( ( function @ SV67 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[571]) ).

thf(711,plain,
    ! [SV68: $i] :
      ( ( ( ~ ( operation @ SV68 ) )
        = $true )
      | ( ( ( cross_product @ ( domain_of @ ( domain_of @ SV68 ) ) @ ( domain_of @ ( domain_of @ SV68 ) ) )
          = ( domain_of @ SV68 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[572]) ).

thf(712,plain,
    ! [SV69: $i] :
      ( ( ( ~ ( operation @ SV69 ) )
        = $true )
      | ( ( subclass @ ( range_of @ SV69 ) @ ( domain_of @ ( domain_of @ SV69 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[573]) ).

thf(713,plain,
    ! [SV187: $i,SV70: $i] :
      ( ( ! [SY478: $i] :
            ( ~ ( compatible @ SV70 @ SV187 @ SY478 )
            | ( function @ SV70 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[574]) ).

thf(714,plain,
    ! [SV188: $i,SV71: $i] :
      ( ( ! [SY479: $i] :
            ( ~ ( compatible @ SV71 @ SV188 @ SY479 )
            | ( ( domain_of @ ( domain_of @ SV188 ) )
              = ( domain_of @ SV71 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[575]) ).

thf(715,plain,
    ! [SV189: $i,SV72: $i] :
      ( ( ! [SY480: $i] :
            ( ~ ( compatible @ SV72 @ SV189 @ SY480 )
            | ( subclass @ ( range_of @ SV72 ) @ ( domain_of @ ( domain_of @ SY480 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[576]) ).

thf(716,plain,
    ! [SV190: $i,SV73: $i] :
      ( ( ! [SY481: $i] :
            ( ~ ( homomorphism @ SV73 @ SV190 @ SY481 )
            | ( operation @ SV190 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[577]) ).

thf(717,plain,
    ! [SV191: $i,SV74: $i] :
      ( ( ! [SY482: $i] :
            ( ~ ( homomorphism @ SV74 @ SV191 @ SY482 )
            | ( operation @ SY482 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[578]) ).

thf(718,plain,
    ! [SV192: $i,SV75: $i] :
      ( ( ! [SY483: $i] :
            ( ~ ( homomorphism @ SV75 @ SV192 @ SY483 )
            | ( compatible @ SV75 @ SV192 @ SY483 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[579]) ).

thf(719,plain,
    ! [SV193: $i,SV76: $i] :
      ( ( ! [SY484: $i,SY485: $i,SY486: $i] :
            ( ~ ( homomorphism @ SV76 @ SV193 @ SY484 )
            | ~ ( member @ ( ordered_pair @ SY485 @ SY486 ) @ ( domain_of @ SV193 ) )
            | ( ( apply @ SY484 @ ( ordered_pair @ ( apply @ SV76 @ SY485 ) @ ( apply @ SV76 @ SY486 ) ) )
              = ( apply @ SV76 @ ( apply @ SV193 @ ( ordered_pair @ SY485 @ SY486 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[580]) ).

thf(720,plain,
    ! [SV194: $i,SV77: $i] :
      ( ( ! [SY487: $i] :
            ( ~ ( operation @ SV77 )
            | ~ ( operation @ SV194 )
            | ~ ( compatible @ SY487 @ SV77 @ SV194 )
            | ( member @ ( ordered_pair @ ( not_homomorphism1 @ SY487 @ SV77 @ SV194 ) @ ( not_homomorphism2 @ SY487 @ SV77 @ SV194 ) ) @ ( domain_of @ SV77 ) )
            | ( homomorphism @ SY487 @ SV77 @ SV194 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[581]) ).

thf(721,plain,
    ! [SV195: $i,SV78: $i] :
      ( ( ! [SY488: $i,SY489: $i] :
            ( ~ ( member @ ( ordered_pair @ SV78 @ SV195 ) @ ( cross_product @ SY488 @ SY489 ) )
            | ( member @ SV78 @ ( unordered_pair @ SV78 @ SV195 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[582]) ).

thf(722,plain,
    ! [SV196: $i,SV79: $i] :
      ( ( ! [SY490: $i,SY491: $i] :
            ( ~ ( member @ ( ordered_pair @ SV79 @ SV196 ) @ ( cross_product @ SY490 @ SY491 ) )
            | ( member @ SV196 @ ( unordered_pair @ SV79 @ SV196 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[583]) ).

thf(723,plain,
    ! [SV197: $i,SV80: $i] :
      ( ( ! [SY492: $i,SY493: $i] :
            ( ~ ( member @ ( ordered_pair @ SV80 @ SV197 ) @ ( cross_product @ SY492 @ SY493 ) )
            | ( member @ SV80 @ universal_class ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[584]) ).

thf(724,plain,
    ! [SV198: $i,SV81: $i] :
      ( ( ! [SY494: $i,SY495: $i] :
            ( ~ ( member @ ( ordered_pair @ SV81 @ SV198 ) @ ( cross_product @ SY494 @ SY495 ) )
            | ( member @ SV198 @ universal_class ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[585]) ).

thf(725,plain,
    ! [SV199: $i,SV83: $i] :
      ( ( ! [SY496: $i] :
            ( ~ ( subclass @ SV83 @ SV199 )
            | ~ ( subclass @ SV199 @ SY496 )
            | ( subclass @ SV83 @ SY496 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[587]) ).

thf(726,plain,
    ! [SV200: $i,SV84: $i] :
      ( ( ( SV84 = SV200 )
        | ( member @ ( not_subclass_element @ SV84 @ SV200 ) @ SV84 )
        | ( member @ ( not_subclass_element @ SV200 @ SV84 ) @ SV200 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[588]) ).

thf(727,plain,
    ! [SV201: $i,SV85: $i] :
      ( ( ~ ( member @ ( not_subclass_element @ SV85 @ SV201 ) @ SV201 )
        | ( SV85 = SV201 )
        | ( member @ ( not_subclass_element @ SV201 @ SV85 ) @ SV201 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[589]) ).

thf(728,plain,
    ! [SV202: $i,SV86: $i] :
      ( ( ~ ( member @ ( not_subclass_element @ SV86 @ SV202 ) @ SV202 )
        | ( SV202 = SV86 )
        | ( member @ ( not_subclass_element @ SV202 @ SV86 ) @ SV202 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[590]) ).

thf(729,plain,
    ! [SV203: $i,SV87: $i] :
      ( ( ~ ( member @ ( not_subclass_element @ SV87 @ SV203 ) @ SV203 )
        | ~ ( member @ ( not_subclass_element @ SV203 @ SV87 ) @ SV87 )
        | ( SV87 = SV203 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[591]) ).

thf(730,plain,
    ! [SV204: $i,SV88: $i] :
      ( ( ~ ( member @ SV88 @ ( intersection @ ( complement @ SV204 ) @ SV204 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[592]) ).

thf(731,plain,
    ! [SV89: $i] :
      ( ( member @ SV89 @ null_class )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[593]) ).

thf(732,plain,
    ! [SV91: $i] :
      ( ( ( ~ ( subclass @ SV91 @ null_class ) )
        = $true )
      | ( ( SV91 = null_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[595]) ).

thf(733,plain,
    ! [SV92: $i] :
      ( ( ( SV92 = null_class )
        = $true )
      | ( ( member @ ( not_subclass_element @ SV92 @ null_class ) @ SV92 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[596]) ).

thf(734,plain,
    ! [SV205: $i,SV93: $i] :
      ( ( ( unordered_pair @ SV93 @ SV205 )
        = ( unordered_pair @ SV205 @ SV93 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[597]) ).

thf(735,plain,
    ! [SV206: $i,SV94: $i] :
      ( ( subclass @ ( singleton @ SV94 ) @ ( unordered_pair @ SV94 @ SV206 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[598]) ).

thf(736,plain,
    ! [SV207: $i,SV95: $i] :
      ( ( subclass @ ( singleton @ SV95 ) @ ( unordered_pair @ SV207 @ SV95 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[599]) ).

thf(737,plain,
    ! [SV208: $i,SV96: $i] :
      ( ( ( member @ SV96 @ universal_class )
        | ( ( unordered_pair @ SV208 @ SV96 )
          = ( singleton @ SV208 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[600]) ).

thf(738,plain,
    ! [SV209: $i,SV97: $i] :
      ( ( ( member @ SV97 @ universal_class )
        | ( ( unordered_pair @ SV97 @ SV209 )
          = ( singleton @ SV209 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[601]) ).

thf(739,plain,
    ! [SV210: $i,SV98: $i] :
      ( ( ( ( unordered_pair @ SV98 @ SV210 )
          = null_class )
        | ( member @ SV98 @ universal_class )
        | ( member @ SV210 @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[602]) ).

thf(740,plain,
    ! [SV211: $i,SV99: $i] :
      ( ( ! [SY497: $i] :
            ( ~ ( member @ SV99 @ SV211 )
            | ~ ( member @ SY497 @ SV211 )
            | ( subclass @ ( unordered_pair @ SV99 @ SY497 ) @ SV211 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[603]) ).

thf(741,plain,
    ! [SV212: $i,SV101: $i] :
      ( ( member @ ( singleton @ SV101 ) @ ( unordered_pair @ SV212 @ ( singleton @ SV101 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[605]) ).

thf(742,plain,
    ! [SV102: $i] :
      ( ( ( ~ ( member @ SV102 @ universal_class ) )
        = $true )
      | ( ( member @ SV102 @ ( singleton @ SV102 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[606]) ).

thf(743,plain,
    ! [SV213: $i,SV103: $i] :
      ( ( ~ ( member @ SV103 @ ( singleton @ SV213 ) )
        | ( SV103 = SV213 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[607]) ).

thf(744,plain,
    ! [SV104: $i] :
      ( ( ( member @ SV104 @ universal_class )
        = $true )
      | ( ( ( singleton @ SV104 )
          = null_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[608]) ).

thf(745,plain,
    ! [SV105: $i] :
      ( ( ( ~ ( member @ SV105 @ universal_class ) )
        = $true )
      | ( ( member @ ( member_of @ ( singleton @ SV105 ) ) @ universal_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[609]) ).

thf(746,plain,
    ! [SV106: $i] :
      ( ( ( ~ ( member @ SV106 @ universal_class ) )
        = $true )
      | ( ( ( singleton @ ( member_of @ ( singleton @ SV106 ) ) )
          = ( singleton @ SV106 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[610]) ).

thf(747,plain,
    ! [SV107: $i] :
      ( ( ( member @ ( member_of @ SV107 ) @ universal_class )
        = $true )
      | ( ( ( member_of @ SV107 )
          = SV107 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[611]) ).

thf(748,plain,
    ! [SV108: $i] :
      ( ( ( ( singleton @ ( member_of @ SV108 ) )
          = SV108 )
        = $true )
      | ( ( ( member_of @ SV108 )
          = SV108 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[612]) ).

thf(749,plain,
    ! [SV109: $i] :
      ( ( ( ~ ( member @ SV109 @ universal_class ) )
        = $true )
      | ( ( ( member_of @ ( singleton @ SV109 ) )
          = SV109 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[613]) ).

thf(750,plain,
    ! [SV110: $i] :
      ( ( ( member @ ( member_of1 @ SV110 ) @ universal_class )
        = $true )
      | ( ( ( member_of @ SV110 )
          = SV110 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[614]) ).

thf(751,plain,
    ! [SV111: $i] :
      ( ( ( ( singleton @ ( member_of1 @ SV111 ) )
          = SV111 )
        = $true )
      | ( ( ( member_of @ SV111 )
          = SV111 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[615]) ).

thf(752,plain,
    ! [SV214: $i,SV112: $i] :
      ( ( ~ ( member @ SV112 @ SV214 )
        | ( subclass @ ( singleton @ SV112 ) @ SV214 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[616]) ).

thf(753,plain,
    ! [SV215: $i,SV113: $i] :
      ( ( ~ ( subclass @ SV113 @ ( singleton @ SV215 ) )
        | ( SV113 = null_class )
        | ( ( singleton @ SV215 )
          = SV113 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[617]) ).

thf(754,plain,
    ! [SV114: $i] :
      ( ( ( member @ ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ SV114 @ null_class ) ) ) @ SV114 ) @ null_class ) @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ SV114 @ null_class ) ) ) @ SV114 ) )
        = $true )
      | ( ( ( ( singleton @ ( not_subclass_element @ SV114 @ null_class ) )
            = SV114 )
          | ( SV114 = null_class ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[618]) ).

thf(755,plain,
    ! [SV115: $i] :
      ( ( ( member @ ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ SV115 @ null_class ) ) ) @ SV115 ) @ null_class ) @ SV115 )
        = $true )
      | ( ( ( ( singleton @ ( not_subclass_element @ SV115 @ null_class ) )
            = SV115 )
          | ( SV115 = null_class ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[619]) ).

thf(756,plain,
    ! [SV216: $i,SV116: $i] :
      ( ( ( unordered_pair @ SV116 @ SV216 )
        = ( union @ ( singleton @ SV116 ) @ ( singleton @ SV216 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[620]) ).

thf(757,plain,
    ! [SV217: $i,SV117: $i] :
      ( ( member @ ( ordered_pair @ SV117 @ SV217 ) @ universal_class )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[621]) ).

thf(758,plain,
    ! [SV218: $i,SV118: $i] :
      ( ( member @ ( singleton @ SV118 ) @ ( ordered_pair @ SV118 @ SV218 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[622]) ).

thf(759,plain,
    ! [SV219: $i,SV119: $i] :
      ( ( member @ ( unordered_pair @ SV119 @ ( singleton @ SV219 ) ) @ ( ordered_pair @ SV119 @ SV219 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[623]) ).

thf(760,plain,
    ! [SV220: $i,SV120: $i] :
      ( ( ( ( unordered_pair @ ( singleton @ SV120 ) @ ( unordered_pair @ SV120 @ null_class ) )
          = ( ordered_pair @ SV120 @ SV220 ) )
        | ( member @ SV220 @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[624]) ).

thf(761,plain,
    ! [SV221: $i,SV121: $i] :
      ( ( ~ ( member @ SV121 @ universal_class )
        | ( ( unordered_pair @ null_class @ ( singleton @ ( singleton @ SV121 ) ) )
          = ( ordered_pair @ SV221 @ SV121 ) )
        | ( member @ SV221 @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[625]) ).

thf(762,plain,
    ! [SV222: $i,SV122: $i] :
      ( ( ( ( unordered_pair @ null_class @ ( singleton @ null_class ) )
          = ( ordered_pair @ SV122 @ SV222 ) )
        | ( member @ SV122 @ universal_class )
        | ( member @ SV222 @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[626]) ).

thf(763,plain,
    ! [SV223: $i,SV123: $i] :
      ( ( ~ ( member @ ( ordered_pair @ SV123 @ SV223 ) @ ( cross_product @ universal_class @ universal_class ) )
        | ( member @ ( ordered_pair @ ( first @ ( ordered_pair @ SV123 @ SV223 ) ) @ ( second @ ( ordered_pair @ SV123 @ SV223 ) ) ) @ ( cross_product @ universal_class @ universal_class ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[627]) ).

thf(764,plain,
    ! [SV124: $i] :
      ( ( ( member @ ( ordered_pair @ ( first @ SV124 ) @ ( second @ SV124 ) ) @ ( cross_product @ universal_class @ universal_class ) )
        = $true )
      | ( ( ( first @ SV124 )
          = SV124 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[628]) ).

thf(765,plain,
    ! [SV125: $i] :
      ( ( ( member @ ( ordered_pair @ ( first @ SV125 ) @ ( second @ SV125 ) ) @ ( cross_product @ universal_class @ universal_class ) )
        = $true )
      | ( ( ( second @ SV125 )
          = SV125 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[629]) ).

thf(766,plain,
    ! [SV126: $i] :
      ( ( ( ( ordered_pair @ ( first @ SV126 ) @ ( second @ SV126 ) )
          = SV126 )
        = $true )
      | ( ( ( first @ SV126 )
          = SV126 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[630]) ).

thf(767,plain,
    ! [SV127: $i] :
      ( ( ( ( ordered_pair @ ( first @ SV127 ) @ ( second @ SV127 ) )
          = SV127 )
        = $true )
      | ( ( ( second @ SV127 )
          = SV127 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[631]) ).

thf(768,plain,
    ! [SV224: $i,SV128: $i] :
      ( ( ( ( singleton @ SV128 )
         != ( singleton @ SV224 ) )
        | ~ ( member @ SV128 @ universal_class )
        | ( SV128 = SV224 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[633]) ).

thf(769,plain,
    ! [SV225: $i,SV129: $i] :
      ( ( ! [SY498: $i,SY499: $i] :
            ( ~ ( member @ ( ordered_pair @ SV129 @ SV225 ) @ ( cross_product @ SY498 @ SY499 ) )
            | ( ( unordered_pair @ SV129 @ SV225 )
             != null_class ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[634]) ).

thf(770,plain,
    ! [SV226: $i,SV130: $i] :
      ( ( ( ( singleton @ ( member_of @ SV130 ) )
         != SV130 )
        | ~ ( member @ SV226 @ SV130 )
        | ( ( member_of @ SV130 )
          = SV226 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[635]) ).

thf(771,plain,
    ! [SV131: $i] :
      ( ( ( ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ SV131 @ null_class ) ) ) @ SV131 ) @ null_class )
         != ( not_subclass_element @ SV131 @ null_class ) )
        = $true )
      | ( ( ( ( singleton @ ( not_subclass_element @ SV131 @ null_class ) )
            = SV131 )
          | ( SV131 = null_class ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[636]) ).

thf(772,plain,
    ! [SV227: $i,SV132: $i] :
      ( ( ! [SY500: $i] :
            ( ( ( unordered_pair @ SV132 @ SV227 )
             != ( unordered_pair @ SV132 @ SY500 ) )
            | ~ ( member @ ( ordered_pair @ SV227 @ SY500 ) @ ( cross_product @ universal_class @ universal_class ) )
            | ( SV227 = SY500 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[637]) ).

thf(773,plain,
    ! [SV228: $i,SV133: $i] :
      ( ( ! [SY501: $i] :
            ( ~ ( function @ SV133 )
            | ( ( domain_of @ ( domain_of @ SV228 ) )
             != ( domain_of @ SV133 ) )
            | ~ ( subclass @ ( range_of @ SV133 ) @ ( domain_of @ ( domain_of @ SY501 ) ) )
            | ( compatible @ SV133 @ SV228 @ SY501 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[638]) ).

thf(774,plain,
    ! [SV229: $i,SV134: $i] :
      ( ( ( SV134 != SV229 )
        | ( subclass @ SV134 @ SV229 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[639]) ).

thf(775,plain,
    ! [SV230: $i,SV135: $i] :
      ( ( ~ ( member @ SV135 @ universal_class )
        | ( ( unordered_pair @ SV135 @ SV230 )
         != null_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[640]) ).

thf(776,plain,
    ! [SV136: $i] :
      ( ( ( ~ ( function @ SV136 ) )
        = $true )
      | ( ( ( ( cross_product @ ( domain_of @ ( domain_of @ SV136 ) ) @ ( domain_of @ ( domain_of @ SV136 ) ) )
           != ( domain_of @ SV136 ) )
          | ~ ( subclass @ ( range_of @ SV136 ) @ ( domain_of @ ( domain_of @ SV136 ) ) )
          | ( operation @ SV136 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[641]) ).

thf(777,plain,
    ! [SV231: $i,SV137: $i] :
      ( ( ( ( successor @ SV137 )
         != SV231 )
        | ~ ( member @ ( ordered_pair @ SV137 @ SV231 ) @ ( cross_product @ universal_class @ universal_class ) )
        | ( member @ ( ordered_pair @ SV137 @ SV231 ) @ successor_relation ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[642]) ).

thf(778,plain,
    ! [SV232: $i,SV138: $i] :
      ( ( ! [SY502: $i,SY503: $i] :
            ( ( ( ordered_pair @ SV138 @ SV232 )
             != ( ordered_pair @ SY502 @ SY503 ) )
            | ~ ( member @ SV138 @ universal_class )
            | ( SV138 = SY502 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[643]) ).

thf(779,plain,
    ! [SV233: $i,SV139: $i] :
      ( ( ! [SY504: $i] :
            ( ( ( unordered_pair @ SV139 @ SV233 )
             != ( singleton @ SY504 ) )
            | ~ ( member @ SY504 @ universal_class )
            | ( SY504 = SV139 )
            | ( SY504 = SV233 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[644]) ).

thf(780,plain,
    ! [SV234: $i,SV140: $i] :
      ( ( ( ( singleton @ SV140 )
         != ( singleton @ SV234 ) )
        | ~ ( member @ SV234 @ universal_class )
        | ( SV140 = SV234 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[645]) ).

thf(781,plain,
    ! [SV141: $i] :
      ( ( ( ~ ( member @ SV141 @ universal_class ) )
        = $true )
      | ( ( ( singleton @ SV141 )
         != null_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[646]) ).

thf(782,plain,
    ! [SV142: $i] :
      ( ( ( ( singleton @ ( member_of @ SV142 ) )
         != SV142 )
        = $true )
      | ( ( member @ SV142 @ universal_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[648]) ).

thf(783,plain,
    ! [SV235: $i,SV143: $i] :
      ( ( ! [SY505: $i] :
            ( ~ ( operation @ SV143 )
            | ~ ( operation @ SV235 )
            | ~ ( compatible @ SY505 @ SV143 @ SV235 )
            | ( ( apply @ SV235 @ ( ordered_pair @ ( apply @ SY505 @ ( not_homomorphism1 @ SY505 @ SV143 @ SV235 ) ) @ ( apply @ SY505 @ ( not_homomorphism2 @ SY505 @ SV143 @ SV235 ) ) ) )
             != ( apply @ SY505 @ ( apply @ SV143 @ ( ordered_pair @ ( not_homomorphism1 @ SY505 @ SV143 @ SV235 ) @ ( not_homomorphism2 @ SY505 @ SV143 @ SV235 ) ) ) ) )
            | ( homomorphism @ SY505 @ SV143 @ SV235 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[649]) ).

thf(784,plain,
    ! [SV236: $i,SV144: $i] :
      ( ( ! [SY506: $i,SY507: $i] :
            ( ( ( ordered_pair @ SV144 @ SV236 )
             != ( ordered_pair @ SY506 @ SY507 ) )
            | ~ ( member @ SV236 @ universal_class )
            | ( SV236 = SY507 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[650]) ).

thf(785,plain,
    ! [SV237: $i,SV145: $i] :
      ( ( ~ ( member @ SV145 @ universal_class )
        | ( ( unordered_pair @ SV237 @ SV145 )
         != null_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[651]) ).

thf(786,plain,
    ! [SV238: $i,SV146: $i] :
      ( ( ( SV146 != SV238 )
        | ( subclass @ SV238 @ SV146 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[652]) ).

thf(787,plain,
    ! [SV239: $i,SV147: $i] :
      ( ( ! [SY508: $i] :
            ( ( ( unordered_pair @ SV147 @ SV239 )
             != ( unordered_pair @ SY508 @ SV239 ) )
            | ~ ( member @ ( ordered_pair @ SV147 @ SY508 ) @ ( cross_product @ universal_class @ universal_class ) )
            | ( SV147 = SY508 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[653]) ).

thf(788,plain,
    ! [SV240: $i,SV148: $i] :
      ( ( ( ( restrict @ SV148 @ ( singleton @ SV240 ) @ universal_class )
         != null_class )
        | ~ ( member @ SV240 @ ( domain_of @ SV148 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[654]) ).

thf(789,plain,
    ! [SV241: $i,SV149: $i,SV1: $i] :
      ( ( ~ ( subclass @ SV1 @ SV149 )
        | ~ ( member @ SV241 @ SV1 )
        | ( member @ SV241 @ SV149 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[655]) ).

thf(790,plain,
    ! [SV150: $i,SV2: $i] :
      ( ( ( member @ ( not_subclass_element @ SV2 @ SV150 ) @ SV2 )
        = $true )
      | ( ( subclass @ SV2 @ SV150 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[656]) ).

thf(791,plain,
    ! [SV151: $i,SV3: $i] :
      ( ( ( ~ ( member @ ( not_subclass_element @ SV3 @ SV151 ) @ SV151 ) )
        = $true )
      | ( ( subclass @ SV3 @ SV151 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[657]) ).

thf(792,plain,
    ! [SV152: $i,SV5: $i] :
      ( ( ( ~ ( subclass @ SV5 @ SV152 ) )
        = $true )
      | ( ( ~ ( subclass @ SV152 @ SV5 )
          | ( SV5 = SV152 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[658]) ).

thf(793,plain,
    ! [SV242: $i,SV153: $i,SV6: $i] :
      ( ( ~ ( member @ SV6 @ ( unordered_pair @ SV153 @ SV242 ) )
        | ( SV6 = SV153 )
        | ( SV6 = SV242 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[659]) ).

thf(794,plain,
    ! [SV154: $i,SV7: $i] :
      ( ( ( ~ ( member @ SV7 @ universal_class ) )
        = $true )
      | ( ( member @ SV7 @ ( unordered_pair @ SV7 @ SV154 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[660]) ).

thf(795,plain,
    ! [SV155: $i,SV8: $i] :
      ( ( ( ~ ( member @ SV8 @ universal_class ) )
        = $true )
      | ( ( member @ SV8 @ ( unordered_pair @ SV155 @ SV8 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[661]) ).

thf(796,plain,
    ! [SV243: $i,SV158: $i,SV12: $i] :
      ( ( ! [SY509: $i] :
            ( ~ ( member @ ( ordered_pair @ SV12 @ SV158 ) @ ( cross_product @ SV243 @ SY509 ) )
            | ( member @ SV12 @ SV243 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[664]) ).

thf(797,plain,
    ! [SV244: $i,SV159: $i,SV13: $i] :
      ( ( ! [SY510: $i] :
            ( ~ ( member @ ( ordered_pair @ SV13 @ SV159 ) @ ( cross_product @ SV244 @ SY510 ) )
            | ( member @ SV159 @ SY510 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[665]) ).

thf(798,plain,
    ! [SV245: $i,SV160: $i,SV14: $i] :
      ( ( ! [SY511: $i] :
            ( ~ ( member @ SV14 @ SV160 )
            | ~ ( member @ SV245 @ SY511 )
            | ( member @ ( ordered_pair @ SV14 @ SV245 ) @ ( cross_product @ SV160 @ SY511 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[666]) ).

thf(799,plain,
    ! [SV246: $i,SV161: $i,SV15: $i] :
      ( ( ~ ( member @ SV15 @ ( cross_product @ SV161 @ SV246 ) )
        | ( ( ordered_pair @ ( first @ SV15 ) @ ( second @ SV15 ) )
          = SV15 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[667]) ).

thf(800,plain,
    ! [SV162: $i,SV16: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV16 @ SV162 ) @ element_relation ) )
        = $true )
      | ( ( member @ SV16 @ SV162 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[668]) ).

thf(801,plain,
    ! [SV163: $i,SV17: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV17 @ SV163 ) @ ( cross_product @ universal_class @ universal_class ) ) )
        = $true )
      | ( ( ~ ( member @ SV17 @ SV163 )
          | ( member @ ( ordered_pair @ SV17 @ SV163 ) @ element_relation ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[669]) ).

thf(802,plain,
    ! [SV247: $i,SV164: $i,SV18: $i] :
      ( ( ~ ( member @ SV18 @ ( intersection @ SV164 @ SV247 ) )
        | ( member @ SV18 @ SV164 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[670]) ).

thf(803,plain,
    ! [SV248: $i,SV165: $i,SV19: $i] :
      ( ( ~ ( member @ SV19 @ ( intersection @ SV165 @ SV248 ) )
        | ( member @ SV19 @ SV248 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[671]) ).

thf(804,plain,
    ! [SV249: $i,SV166: $i,SV20: $i] :
      ( ( ~ ( member @ SV20 @ SV166 )
        | ~ ( member @ SV20 @ SV249 )
        | ( member @ SV20 @ ( intersection @ SV166 @ SV249 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[672]) ).

thf(805,plain,
    ! [SV167: $i,SV21: $i] :
      ( ( ( ~ ( member @ SV21 @ ( complement @ SV167 ) ) )
        = $true )
      | ( ( ~ ( member @ SV21 @ SV167 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[673]) ).

thf(806,plain,
    ! [SV168: $i,SV22: $i] :
      ( ( ( ~ ( member @ SV22 @ universal_class ) )
        = $true )
      | ( ( ( member @ SV22 @ ( complement @ SV168 ) )
          | ( member @ SV22 @ SV168 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[674]) ).

thf(807,plain,
    ! [SV250: $i,SV171: $i,SV25: $i] :
      ( ( ( intersection @ SV25 @ ( cross_product @ SV171 @ SV250 ) )
        = ( restrict @ SV25 @ SV171 @ SV250 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[677]) ).

thf(808,plain,
    ! [SV251: $i,SV172: $i,SV26: $i] :
      ( ( ( intersection @ ( cross_product @ SV26 @ SV172 ) @ SV251 )
        = ( restrict @ SV251 @ SV26 @ SV172 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[678]) ).

thf(809,plain,
    ! [SV173: $i,SV27: $i] :
      ( ( ( ~ ( member @ SV27 @ universal_class ) )
        = $true )
      | ( ( ( ( restrict @ SV173 @ ( singleton @ SV27 ) @ universal_class )
            = null_class )
          | ( member @ SV27 @ ( domain_of @ SV173 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[679]) ).

thf(810,plain,
    ! [SV252: $i,SV174: $i,SV29: $i] :
      ( ( ! [SY512: $i] :
            ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV29 @ SV174 ) @ SV252 ) @ ( rotate @ SY512 ) )
            | ( member @ ( ordered_pair @ ( ordered_pair @ SV174 @ SV252 ) @ SV29 ) @ SY512 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[680]) ).

thf(811,plain,
    ! [SV253: $i,SV175: $i,SV30: $i] :
      ( ( ! [SY513: $i] :
            ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV30 @ SV175 ) @ SV253 ) @ SY513 )
            | ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV253 @ SV30 ) @ SV175 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
            | ( member @ ( ordered_pair @ ( ordered_pair @ SV253 @ SV30 ) @ SV175 ) @ ( rotate @ SY513 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[681]) ).

thf(812,plain,
    ! [SV254: $i,SV176: $i,SV32: $i] :
      ( ( ! [SY514: $i] :
            ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV32 @ SV176 ) @ SV254 ) @ ( flip @ SY514 ) )
            | ( member @ ( ordered_pair @ ( ordered_pair @ SV176 @ SV32 ) @ SV254 ) @ SY514 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[682]) ).

thf(813,plain,
    ! [SV255: $i,SV177: $i,SV33: $i] :
      ( ( ! [SY515: $i] :
            ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV33 @ SV177 ) @ SV255 ) @ SY515 )
            | ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV177 @ SV33 ) @ SV255 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
            | ( member @ ( ordered_pair @ ( ordered_pair @ SV177 @ SV33 ) @ SV255 ) @ ( flip @ SY515 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[683]) ).

thf(814,plain,
    ! [SV256: $i,SV178: $i,SV36: $i] :
      ( ( ( first @ ( not_subclass_element @ ( restrict @ SV36 @ SV178 @ ( singleton @ SV256 ) ) @ null_class ) )
        = ( domain @ SV36 @ SV178 @ SV256 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[684]) ).

thf(815,plain,
    ! [SV257: $i,SV179: $i,SV37: $i] :
      ( ( ( second @ ( not_subclass_element @ ( restrict @ SV37 @ ( singleton @ SV179 ) @ SV257 ) @ null_class ) )
        = ( range @ SV37 @ SV179 @ SV257 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[685]) ).

thf(816,plain,
    ! [SV181: $i,SV40: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV40 @ SV181 ) @ successor_relation ) )
        = $true )
      | ( ( ( successor @ SV40 )
          = SV181 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[687]) ).

thf(817,plain,
    ! [SV41: $i] :
      ( ( ( inductive @ SV41 )
        = $false )
      | ( ( member @ null_class @ SV41 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[688]) ).

thf(818,plain,
    ! [SV42: $i] :
      ( ( ( inductive @ SV42 )
        = $false )
      | ( ( subclass @ ( image @ successor_relation @ SV42 ) @ SV42 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[689]) ).

thf(819,plain,
    ! [SV43: $i] :
      ( ( ( member @ null_class @ SV43 )
        = $false )
      | ( ( ~ ( subclass @ ( image @ successor_relation @ SV43 ) @ SV43 )
          | ( inductive @ SV43 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[690]) ).

thf(820,plain,
    ! [SV44: $i] :
      ( ( ( inductive @ SV44 )
        = $false )
      | ( ( subclass @ omega @ SV44 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[691]) ).

thf(821,plain,
    ! [SV46: $i] :
      ( ( ( member @ SV46 @ universal_class )
        = $false )
      | ( ( member @ ( sum_class @ SV46 ) @ universal_class )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[692]) ).

thf(822,plain,
    ! [SV48: $i] :
      ( ( ( member @ SV48 @ universal_class )
        = $false )
      | ( ( member @ ( power_class @ SV48 ) @ universal_class )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[693]) ).

thf(823,plain,
    ! [SV258: $i,SV183: $i,SV50: $i] :
      ( ( ! [SY516: $i] :
            ( ~ ( member @ ( ordered_pair @ SV50 @ SV183 ) @ ( compose @ SV258 @ SY516 ) )
            | ( member @ SV183 @ ( image @ SV258 @ ( image @ SY516 @ ( singleton @ SV50 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[695]) ).

thf(824,plain,
    ! [SV259: $i,SV184: $i,SV51: $i] :
      ( ( ! [SY517: $i] :
            ( ~ ( member @ SV51 @ ( image @ SV184 @ ( image @ SV259 @ ( singleton @ SY517 ) ) ) )
            | ~ ( member @ ( ordered_pair @ SY517 @ SV51 ) @ ( cross_product @ universal_class @ universal_class ) )
            | ( member @ ( ordered_pair @ SY517 @ SV51 ) @ ( compose @ SV184 @ SV259 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[696]) ).

thf(825,plain,
    ! [SV52: $i] :
      ( ( ( single_valued_class @ SV52 )
        = $false )
      | ( ( subclass @ ( compose @ SV52 @ ( inverse @ SV52 ) ) @ identity_relation )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[697]) ).

thf(826,plain,
    ! [SV53: $i] :
      ( ( ( subclass @ ( compose @ SV53 @ ( inverse @ SV53 ) ) @ identity_relation )
        = $false )
      | ( ( single_valued_class @ SV53 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[698]) ).

thf(827,plain,
    ! [SV54: $i] :
      ( ( ( function @ SV54 )
        = $false )
      | ( ( subclass @ SV54 @ ( cross_product @ universal_class @ universal_class ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[699]) ).

thf(828,plain,
    ! [SV55: $i] :
      ( ( ( function @ SV55 )
        = $false )
      | ( ( subclass @ ( compose @ SV55 @ ( inverse @ SV55 ) ) @ identity_relation )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[700]) ).

thf(829,plain,
    ! [SV56: $i] :
      ( ( ( subclass @ SV56 @ ( cross_product @ universal_class @ universal_class ) )
        = $false )
      | ( ( ~ ( subclass @ ( compose @ SV56 @ ( inverse @ SV56 ) ) @ identity_relation )
          | ( function @ SV56 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[701]) ).

thf(830,plain,
    ! [SV185: $i,SV57: $i] :
      ( ( ( ~ ( function @ SV57 ) )
        = $true )
      | ( ( ~ ( member @ SV185 @ universal_class )
          | ( member @ ( image @ SV57 @ SV185 ) @ universal_class ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[702]) ).

thf(831,plain,
    ! [SV61: $i] :
      ( ( ( member @ SV61 @ universal_class )
        = $false )
      | ( ( ( SV61 = null_class )
          | ( member @ ( apply @ choice @ SV61 ) @ SV61 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[706]) ).

thf(832,plain,
    ! [SV62: $i] :
      ( ( ( one_to_one @ SV62 )
        = $false )
      | ( ( function @ SV62 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[707]) ).

thf(833,plain,
    ! [SV63: $i] :
      ( ( ( one_to_one @ SV63 )
        = $false )
      | ( ( function @ ( inverse @ SV63 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[708]) ).

thf(834,plain,
    ! [SV64: $i] :
      ( ( ( function @ ( inverse @ SV64 ) )
        = $false )
      | ( ( ~ ( function @ SV64 )
          | ( one_to_one @ SV64 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[709]) ).

thf(835,plain,
    ! [SV67: $i] :
      ( ( ( operation @ SV67 )
        = $false )
      | ( ( function @ SV67 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[710]) ).

thf(836,plain,
    ! [SV68: $i] :
      ( ( ( operation @ SV68 )
        = $false )
      | ( ( ( cross_product @ ( domain_of @ ( domain_of @ SV68 ) ) @ ( domain_of @ ( domain_of @ SV68 ) ) )
          = ( domain_of @ SV68 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[711]) ).

thf(837,plain,
    ! [SV69: $i] :
      ( ( ( operation @ SV69 )
        = $false )
      | ( ( subclass @ ( range_of @ SV69 ) @ ( domain_of @ ( domain_of @ SV69 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[712]) ).

thf(838,plain,
    ! [SV260: $i,SV187: $i,SV70: $i] :
      ( ( ~ ( compatible @ SV70 @ SV187 @ SV260 )
        | ( function @ SV70 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[713]) ).

thf(839,plain,
    ! [SV261: $i,SV188: $i,SV71: $i] :
      ( ( ~ ( compatible @ SV71 @ SV188 @ SV261 )
        | ( ( domain_of @ ( domain_of @ SV188 ) )
          = ( domain_of @ SV71 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[714]) ).

thf(840,plain,
    ! [SV262: $i,SV189: $i,SV72: $i] :
      ( ( ~ ( compatible @ SV72 @ SV189 @ SV262 )
        | ( subclass @ ( range_of @ SV72 ) @ ( domain_of @ ( domain_of @ SV262 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[715]) ).

thf(841,plain,
    ! [SV263: $i,SV190: $i,SV73: $i] :
      ( ( ~ ( homomorphism @ SV73 @ SV190 @ SV263 )
        | ( operation @ SV190 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[716]) ).

thf(842,plain,
    ! [SV264: $i,SV191: $i,SV74: $i] :
      ( ( ~ ( homomorphism @ SV74 @ SV191 @ SV264 )
        | ( operation @ SV264 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[717]) ).

thf(843,plain,
    ! [SV265: $i,SV192: $i,SV75: $i] :
      ( ( ~ ( homomorphism @ SV75 @ SV192 @ SV265 )
        | ( compatible @ SV75 @ SV192 @ SV265 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[718]) ).

thf(844,plain,
    ! [SV266: $i,SV193: $i,SV76: $i] :
      ( ( ! [SY518: $i,SY519: $i] :
            ( ~ ( homomorphism @ SV76 @ SV193 @ SV266 )
            | ~ ( member @ ( ordered_pair @ SY518 @ SY519 ) @ ( domain_of @ SV193 ) )
            | ( ( apply @ SV266 @ ( ordered_pair @ ( apply @ SV76 @ SY518 ) @ ( apply @ SV76 @ SY519 ) ) )
              = ( apply @ SV76 @ ( apply @ SV193 @ ( ordered_pair @ SY518 @ SY519 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[719]) ).

thf(845,plain,
    ! [SV267: $i,SV194: $i,SV77: $i] :
      ( ( ~ ( operation @ SV77 )
        | ~ ( operation @ SV194 )
        | ~ ( compatible @ SV267 @ SV77 @ SV194 )
        | ( member @ ( ordered_pair @ ( not_homomorphism1 @ SV267 @ SV77 @ SV194 ) @ ( not_homomorphism2 @ SV267 @ SV77 @ SV194 ) ) @ ( domain_of @ SV77 ) )
        | ( homomorphism @ SV267 @ SV77 @ SV194 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[720]) ).

thf(846,plain,
    ! [SV268: $i,SV195: $i,SV78: $i] :
      ( ( ! [SY520: $i] :
            ( ~ ( member @ ( ordered_pair @ SV78 @ SV195 ) @ ( cross_product @ SV268 @ SY520 ) )
            | ( member @ SV78 @ ( unordered_pair @ SV78 @ SV195 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[721]) ).

thf(847,plain,
    ! [SV269: $i,SV196: $i,SV79: $i] :
      ( ( ! [SY521: $i] :
            ( ~ ( member @ ( ordered_pair @ SV79 @ SV196 ) @ ( cross_product @ SV269 @ SY521 ) )
            | ( member @ SV196 @ ( unordered_pair @ SV79 @ SV196 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[722]) ).

thf(848,plain,
    ! [SV270: $i,SV197: $i,SV80: $i] :
      ( ( ! [SY522: $i] :
            ( ~ ( member @ ( ordered_pair @ SV80 @ SV197 ) @ ( cross_product @ SV270 @ SY522 ) )
            | ( member @ SV80 @ universal_class ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[723]) ).

thf(849,plain,
    ! [SV271: $i,SV198: $i,SV81: $i] :
      ( ( ! [SY523: $i] :
            ( ~ ( member @ ( ordered_pair @ SV81 @ SV198 ) @ ( cross_product @ SV271 @ SY523 ) )
            | ( member @ SV198 @ universal_class ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[724]) ).

thf(850,plain,
    ! [SV272: $i,SV199: $i,SV83: $i] :
      ( ( ~ ( subclass @ SV83 @ SV199 )
        | ~ ( subclass @ SV199 @ SV272 )
        | ( subclass @ SV83 @ SV272 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[725]) ).

thf(851,plain,
    ! [SV200: $i,SV84: $i] :
      ( ( ( SV84 = SV200 )
        = $true )
      | ( ( ( member @ ( not_subclass_element @ SV84 @ SV200 ) @ SV84 )
          | ( member @ ( not_subclass_element @ SV200 @ SV84 ) @ SV200 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[726]) ).

thf(852,plain,
    ! [SV201: $i,SV85: $i] :
      ( ( ( ~ ( member @ ( not_subclass_element @ SV85 @ SV201 ) @ SV201 ) )
        = $true )
      | ( ( ( SV85 = SV201 )
          | ( member @ ( not_subclass_element @ SV201 @ SV85 ) @ SV201 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[727]) ).

thf(853,plain,
    ! [SV202: $i,SV86: $i] :
      ( ( ( ~ ( member @ ( not_subclass_element @ SV86 @ SV202 ) @ SV202 ) )
        = $true )
      | ( ( ( SV202 = SV86 )
          | ( member @ ( not_subclass_element @ SV202 @ SV86 ) @ SV202 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[728]) ).

thf(854,plain,
    ! [SV203: $i,SV87: $i] :
      ( ( ( ~ ( member @ ( not_subclass_element @ SV87 @ SV203 ) @ SV203 ) )
        = $true )
      | ( ( ~ ( member @ ( not_subclass_element @ SV203 @ SV87 ) @ SV87 )
          | ( SV87 = SV203 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[729]) ).

thf(855,plain,
    ! [SV204: $i,SV88: $i] :
      ( ( member @ SV88 @ ( intersection @ ( complement @ SV204 ) @ SV204 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[730]) ).

thf(856,plain,
    ! [SV91: $i] :
      ( ( ( subclass @ SV91 @ null_class )
        = $false )
      | ( ( SV91 = null_class )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[732]) ).

thf(857,plain,
    ! [SV208: $i,SV96: $i] :
      ( ( ( member @ SV96 @ universal_class )
        = $true )
      | ( ( ( unordered_pair @ SV208 @ SV96 )
          = ( singleton @ SV208 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[737]) ).

thf(858,plain,
    ! [SV209: $i,SV97: $i] :
      ( ( ( member @ SV97 @ universal_class )
        = $true )
      | ( ( ( unordered_pair @ SV97 @ SV209 )
          = ( singleton @ SV209 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[738]) ).

thf(859,plain,
    ! [SV210: $i,SV98: $i] :
      ( ( ( ( unordered_pair @ SV98 @ SV210 )
          = null_class )
        = $true )
      | ( ( ( member @ SV98 @ universal_class )
          | ( member @ SV210 @ universal_class ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[739]) ).

thf(860,plain,
    ! [SV273: $i,SV211: $i,SV99: $i] :
      ( ( ~ ( member @ SV99 @ SV211 )
        | ~ ( member @ SV273 @ SV211 )
        | ( subclass @ ( unordered_pair @ SV99 @ SV273 ) @ SV211 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[740]) ).

thf(861,plain,
    ! [SV102: $i] :
      ( ( ( member @ SV102 @ universal_class )
        = $false )
      | ( ( member @ SV102 @ ( singleton @ SV102 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[742]) ).

thf(862,plain,
    ! [SV213: $i,SV103: $i] :
      ( ( ( ~ ( member @ SV103 @ ( singleton @ SV213 ) ) )
        = $true )
      | ( ( SV103 = SV213 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[743]) ).

thf(863,plain,
    ! [SV105: $i] :
      ( ( ( member @ SV105 @ universal_class )
        = $false )
      | ( ( member @ ( member_of @ ( singleton @ SV105 ) ) @ universal_class )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[745]) ).

thf(864,plain,
    ! [SV106: $i] :
      ( ( ( member @ SV106 @ universal_class )
        = $false )
      | ( ( ( singleton @ ( member_of @ ( singleton @ SV106 ) ) )
          = ( singleton @ SV106 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[746]) ).

thf(865,plain,
    ! [SV109: $i] :
      ( ( ( member @ SV109 @ universal_class )
        = $false )
      | ( ( ( member_of @ ( singleton @ SV109 ) )
          = SV109 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[749]) ).

thf(866,plain,
    ! [SV214: $i,SV112: $i] :
      ( ( ( ~ ( member @ SV112 @ SV214 ) )
        = $true )
      | ( ( subclass @ ( singleton @ SV112 ) @ SV214 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[752]) ).

thf(867,plain,
    ! [SV215: $i,SV113: $i] :
      ( ( ( ~ ( subclass @ SV113 @ ( singleton @ SV215 ) ) )
        = $true )
      | ( ( ( SV113 = null_class )
          | ( ( singleton @ SV215 )
            = SV113 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[753]) ).

thf(868,plain,
    ! [SV114: $i] :
      ( ( ( ( singleton @ ( not_subclass_element @ SV114 @ null_class ) )
          = SV114 )
        = $true )
      | ( ( SV114 = null_class )
        = $true )
      | ( ( member @ ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ SV114 @ null_class ) ) ) @ SV114 ) @ null_class ) @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ SV114 @ null_class ) ) ) @ SV114 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[754]) ).

thf(869,plain,
    ! [SV115: $i] :
      ( ( ( ( singleton @ ( not_subclass_element @ SV115 @ null_class ) )
          = SV115 )
        = $true )
      | ( ( SV115 = null_class )
        = $true )
      | ( ( member @ ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ SV115 @ null_class ) ) ) @ SV115 ) @ null_class ) @ SV115 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[755]) ).

thf(870,plain,
    ! [SV220: $i,SV120: $i] :
      ( ( ( ( unordered_pair @ ( singleton @ SV120 ) @ ( unordered_pair @ SV120 @ null_class ) )
          = ( ordered_pair @ SV120 @ SV220 ) )
        = $true )
      | ( ( member @ SV220 @ universal_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[760]) ).

thf(871,plain,
    ! [SV221: $i,SV121: $i] :
      ( ( ( ~ ( member @ SV121 @ universal_class ) )
        = $true )
      | ( ( ( ( unordered_pair @ null_class @ ( singleton @ ( singleton @ SV121 ) ) )
            = ( ordered_pair @ SV221 @ SV121 ) )
          | ( member @ SV221 @ universal_class ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[761]) ).

thf(872,plain,
    ! [SV222: $i,SV122: $i] :
      ( ( ( ( unordered_pair @ null_class @ ( singleton @ null_class ) )
          = ( ordered_pair @ SV122 @ SV222 ) )
        = $true )
      | ( ( ( member @ SV122 @ universal_class )
          | ( member @ SV222 @ universal_class ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[762]) ).

thf(873,plain,
    ! [SV223: $i,SV123: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV123 @ SV223 ) @ ( cross_product @ universal_class @ universal_class ) ) )
        = $true )
      | ( ( member @ ( ordered_pair @ ( first @ ( ordered_pair @ SV123 @ SV223 ) ) @ ( second @ ( ordered_pair @ SV123 @ SV223 ) ) ) @ ( cross_product @ universal_class @ universal_class ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[763]) ).

thf(874,plain,
    ! [SV224: $i,SV128: $i] :
      ( ( ( ( singleton @ SV128 )
         != ( singleton @ SV224 ) )
        = $true )
      | ( ( ~ ( member @ SV128 @ universal_class )
          | ( SV128 = SV224 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[768]) ).

thf(875,plain,
    ! [SV274: $i,SV225: $i,SV129: $i] :
      ( ( ! [SY524: $i] :
            ( ~ ( member @ ( ordered_pair @ SV129 @ SV225 ) @ ( cross_product @ SV274 @ SY524 ) )
            | ( ( unordered_pair @ SV129 @ SV225 )
             != null_class ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[769]) ).

thf(876,plain,
    ! [SV226: $i,SV130: $i] :
      ( ( ( ( singleton @ ( member_of @ SV130 ) )
         != SV130 )
        = $true )
      | ( ( ~ ( member @ SV226 @ SV130 )
          | ( ( member_of @ SV130 )
            = SV226 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[770]) ).

thf(877,plain,
    ! [SV131: $i] :
      ( ( ( ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ SV131 @ null_class ) ) ) @ SV131 ) @ null_class )
          = ( not_subclass_element @ SV131 @ null_class ) )
        = $false )
      | ( ( ( ( singleton @ ( not_subclass_element @ SV131 @ null_class ) )
            = SV131 )
          | ( SV131 = null_class ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[771]) ).

thf(878,plain,
    ! [SV275: $i,SV227: $i,SV132: $i] :
      ( ( ( ( unordered_pair @ SV132 @ SV227 )
         != ( unordered_pair @ SV132 @ SV275 ) )
        | ~ ( member @ ( ordered_pair @ SV227 @ SV275 ) @ ( cross_product @ universal_class @ universal_class ) )
        | ( SV227 = SV275 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[772]) ).

thf(879,plain,
    ! [SV276: $i,SV228: $i,SV133: $i] :
      ( ( ~ ( function @ SV133 )
        | ( ( domain_of @ ( domain_of @ SV228 ) )
         != ( domain_of @ SV133 ) )
        | ~ ( subclass @ ( range_of @ SV133 ) @ ( domain_of @ ( domain_of @ SV276 ) ) )
        | ( compatible @ SV133 @ SV228 @ SV276 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[773]) ).

thf(880,plain,
    ! [SV229: $i,SV134: $i] :
      ( ( ( SV134 != SV229 )
        = $true )
      | ( ( subclass @ SV134 @ SV229 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[774]) ).

thf(881,plain,
    ! [SV230: $i,SV135: $i] :
      ( ( ( ~ ( member @ SV135 @ universal_class ) )
        = $true )
      | ( ( ( unordered_pair @ SV135 @ SV230 )
         != null_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[775]) ).

thf(882,plain,
    ! [SV136: $i] :
      ( ( ( function @ SV136 )
        = $false )
      | ( ( ( ( cross_product @ ( domain_of @ ( domain_of @ SV136 ) ) @ ( domain_of @ ( domain_of @ SV136 ) ) )
           != ( domain_of @ SV136 ) )
          | ~ ( subclass @ ( range_of @ SV136 ) @ ( domain_of @ ( domain_of @ SV136 ) ) )
          | ( operation @ SV136 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[776]) ).

thf(883,plain,
    ! [SV231: $i,SV137: $i] :
      ( ( ( ( successor @ SV137 )
         != SV231 )
        = $true )
      | ( ( ~ ( member @ ( ordered_pair @ SV137 @ SV231 ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( member @ ( ordered_pair @ SV137 @ SV231 ) @ successor_relation ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[777]) ).

thf(884,plain,
    ! [SV277: $i,SV232: $i,SV138: $i] :
      ( ( ! [SY525: $i] :
            ( ( ( ordered_pair @ SV138 @ SV232 )
             != ( ordered_pair @ SV277 @ SY525 ) )
            | ~ ( member @ SV138 @ universal_class )
            | ( SV138 = SV277 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[778]) ).

thf(885,plain,
    ! [SV278: $i,SV233: $i,SV139: $i] :
      ( ( ( ( unordered_pair @ SV139 @ SV233 )
         != ( singleton @ SV278 ) )
        | ~ ( member @ SV278 @ universal_class )
        | ( SV278 = SV139 )
        | ( SV278 = SV233 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[779]) ).

thf(886,plain,
    ! [SV234: $i,SV140: $i] :
      ( ( ( ( singleton @ SV140 )
         != ( singleton @ SV234 ) )
        = $true )
      | ( ( ~ ( member @ SV234 @ universal_class )
          | ( SV140 = SV234 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[780]) ).

thf(887,plain,
    ! [SV141: $i] :
      ( ( ( member @ SV141 @ universal_class )
        = $false )
      | ( ( ( singleton @ SV141 )
         != null_class )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[781]) ).

thf(888,plain,
    ! [SV142: $i] :
      ( ( ( ( singleton @ ( member_of @ SV142 ) )
          = SV142 )
        = $false )
      | ( ( member @ SV142 @ universal_class )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[782]) ).

thf(889,plain,
    ! [SV279: $i,SV235: $i,SV143: $i] :
      ( ( ~ ( operation @ SV143 )
        | ~ ( operation @ SV235 )
        | ~ ( compatible @ SV279 @ SV143 @ SV235 )
        | ( ( apply @ SV235 @ ( ordered_pair @ ( apply @ SV279 @ ( not_homomorphism1 @ SV279 @ SV143 @ SV235 ) ) @ ( apply @ SV279 @ ( not_homomorphism2 @ SV279 @ SV143 @ SV235 ) ) ) )
         != ( apply @ SV279 @ ( apply @ SV143 @ ( ordered_pair @ ( not_homomorphism1 @ SV279 @ SV143 @ SV235 ) @ ( not_homomorphism2 @ SV279 @ SV143 @ SV235 ) ) ) ) )
        | ( homomorphism @ SV279 @ SV143 @ SV235 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[783]) ).

thf(890,plain,
    ! [SV280: $i,SV236: $i,SV144: $i] :
      ( ( ! [SY526: $i] :
            ( ( ( ordered_pair @ SV144 @ SV236 )
             != ( ordered_pair @ SV280 @ SY526 ) )
            | ~ ( member @ SV236 @ universal_class )
            | ( SV236 = SY526 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[784]) ).

thf(891,plain,
    ! [SV237: $i,SV145: $i] :
      ( ( ( ~ ( member @ SV145 @ universal_class ) )
        = $true )
      | ( ( ( unordered_pair @ SV237 @ SV145 )
         != null_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[785]) ).

thf(892,plain,
    ! [SV238: $i,SV146: $i] :
      ( ( ( SV146 != SV238 )
        = $true )
      | ( ( subclass @ SV238 @ SV146 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[786]) ).

thf(893,plain,
    ! [SV281: $i,SV239: $i,SV147: $i] :
      ( ( ( ( unordered_pair @ SV147 @ SV239 )
         != ( unordered_pair @ SV281 @ SV239 ) )
        | ~ ( member @ ( ordered_pair @ SV147 @ SV281 ) @ ( cross_product @ universal_class @ universal_class ) )
        | ( SV147 = SV281 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[787]) ).

thf(894,plain,
    ! [SV240: $i,SV148: $i] :
      ( ( ( ( restrict @ SV148 @ ( singleton @ SV240 ) @ universal_class )
         != null_class )
        = $true )
      | ( ( ~ ( member @ SV240 @ ( domain_of @ SV148 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[788]) ).

thf(895,plain,
    ! [SV241: $i,SV149: $i,SV1: $i] :
      ( ( ( ~ ( subclass @ SV1 @ SV149 ) )
        = $true )
      | ( ( ~ ( member @ SV241 @ SV1 )
          | ( member @ SV241 @ SV149 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[789]) ).

thf(896,plain,
    ! [SV151: $i,SV3: $i] :
      ( ( ( member @ ( not_subclass_element @ SV3 @ SV151 ) @ SV151 )
        = $false )
      | ( ( subclass @ SV3 @ SV151 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[791]) ).

thf(897,plain,
    ! [SV152: $i,SV5: $i] :
      ( ( ( subclass @ SV5 @ SV152 )
        = $false )
      | ( ( ~ ( subclass @ SV152 @ SV5 )
          | ( SV5 = SV152 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[792]) ).

thf(898,plain,
    ! [SV242: $i,SV153: $i,SV6: $i] :
      ( ( ( ~ ( member @ SV6 @ ( unordered_pair @ SV153 @ SV242 ) ) )
        = $true )
      | ( ( ( SV6 = SV153 )
          | ( SV6 = SV242 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[793]) ).

thf(899,plain,
    ! [SV154: $i,SV7: $i] :
      ( ( ( member @ SV7 @ universal_class )
        = $false )
      | ( ( member @ SV7 @ ( unordered_pair @ SV7 @ SV154 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[794]) ).

thf(900,plain,
    ! [SV155: $i,SV8: $i] :
      ( ( ( member @ SV8 @ universal_class )
        = $false )
      | ( ( member @ SV8 @ ( unordered_pair @ SV155 @ SV8 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[795]) ).

thf(901,plain,
    ! [SV282: $i,SV243: $i,SV158: $i,SV12: $i] :
      ( ( ~ ( member @ ( ordered_pair @ SV12 @ SV158 ) @ ( cross_product @ SV243 @ SV282 ) )
        | ( member @ SV12 @ SV243 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[796]) ).

thf(902,plain,
    ! [SV283: $i,SV244: $i,SV159: $i,SV13: $i] :
      ( ( ~ ( member @ ( ordered_pair @ SV13 @ SV159 ) @ ( cross_product @ SV244 @ SV283 ) )
        | ( member @ SV159 @ SV283 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[797]) ).

thf(903,plain,
    ! [SV284: $i,SV245: $i,SV160: $i,SV14: $i] :
      ( ( ~ ( member @ SV14 @ SV160 )
        | ~ ( member @ SV245 @ SV284 )
        | ( member @ ( ordered_pair @ SV14 @ SV245 ) @ ( cross_product @ SV160 @ SV284 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[798]) ).

thf(904,plain,
    ! [SV246: $i,SV161: $i,SV15: $i] :
      ( ( ( ~ ( member @ SV15 @ ( cross_product @ SV161 @ SV246 ) ) )
        = $true )
      | ( ( ( ordered_pair @ ( first @ SV15 ) @ ( second @ SV15 ) )
          = SV15 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[799]) ).

thf(905,plain,
    ! [SV162: $i,SV16: $i] :
      ( ( ( member @ ( ordered_pair @ SV16 @ SV162 ) @ element_relation )
        = $false )
      | ( ( member @ SV16 @ SV162 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[800]) ).

thf(906,plain,
    ! [SV163: $i,SV17: $i] :
      ( ( ( member @ ( ordered_pair @ SV17 @ SV163 ) @ ( cross_product @ universal_class @ universal_class ) )
        = $false )
      | ( ( ~ ( member @ SV17 @ SV163 )
          | ( member @ ( ordered_pair @ SV17 @ SV163 ) @ element_relation ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[801]) ).

thf(907,plain,
    ! [SV247: $i,SV164: $i,SV18: $i] :
      ( ( ( ~ ( member @ SV18 @ ( intersection @ SV164 @ SV247 ) ) )
        = $true )
      | ( ( member @ SV18 @ SV164 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[802]) ).

thf(908,plain,
    ! [SV248: $i,SV165: $i,SV19: $i] :
      ( ( ( ~ ( member @ SV19 @ ( intersection @ SV165 @ SV248 ) ) )
        = $true )
      | ( ( member @ SV19 @ SV248 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[803]) ).

thf(909,plain,
    ! [SV249: $i,SV166: $i,SV20: $i] :
      ( ( ( ~ ( member @ SV20 @ SV166 ) )
        = $true )
      | ( ( ~ ( member @ SV20 @ SV249 )
          | ( member @ SV20 @ ( intersection @ SV166 @ SV249 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[804]) ).

thf(910,plain,
    ! [SV167: $i,SV21: $i] :
      ( ( ( member @ SV21 @ ( complement @ SV167 ) )
        = $false )
      | ( ( ~ ( member @ SV21 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[805]) ).

thf(911,plain,
    ! [SV168: $i,SV22: $i] :
      ( ( ( member @ SV22 @ universal_class )
        = $false )
      | ( ( ( member @ SV22 @ ( complement @ SV168 ) )
          | ( member @ SV22 @ SV168 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[806]) ).

thf(912,plain,
    ! [SV173: $i,SV27: $i] :
      ( ( ( member @ SV27 @ universal_class )
        = $false )
      | ( ( ( ( restrict @ SV173 @ ( singleton @ SV27 ) @ universal_class )
            = null_class )
          | ( member @ SV27 @ ( domain_of @ SV173 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[809]) ).

thf(913,plain,
    ! [SV285: $i,SV252: $i,SV174: $i,SV29: $i] :
      ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV29 @ SV174 ) @ SV252 ) @ ( rotate @ SV285 ) )
        | ( member @ ( ordered_pair @ ( ordered_pair @ SV174 @ SV252 ) @ SV29 ) @ SV285 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[810]) ).

thf(914,plain,
    ! [SV286: $i,SV253: $i,SV175: $i,SV30: $i] :
      ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV30 @ SV175 ) @ SV253 ) @ SV286 )
        | ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV253 @ SV30 ) @ SV175 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
        | ( member @ ( ordered_pair @ ( ordered_pair @ SV253 @ SV30 ) @ SV175 ) @ ( rotate @ SV286 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[811]) ).

thf(915,plain,
    ! [SV287: $i,SV254: $i,SV176: $i,SV32: $i] :
      ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV32 @ SV176 ) @ SV254 ) @ ( flip @ SV287 ) )
        | ( member @ ( ordered_pair @ ( ordered_pair @ SV176 @ SV32 ) @ SV254 ) @ SV287 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[812]) ).

thf(916,plain,
    ! [SV288: $i,SV255: $i,SV177: $i,SV33: $i] :
      ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV33 @ SV177 ) @ SV255 ) @ SV288 )
        | ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV177 @ SV33 ) @ SV255 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
        | ( member @ ( ordered_pair @ ( ordered_pair @ SV177 @ SV33 ) @ SV255 ) @ ( flip @ SV288 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[813]) ).

thf(917,plain,
    ! [SV181: $i,SV40: $i] :
      ( ( ( member @ ( ordered_pair @ SV40 @ SV181 ) @ successor_relation )
        = $false )
      | ( ( ( successor @ SV40 )
          = SV181 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[816]) ).

thf(918,plain,
    ! [SV43: $i] :
      ( ( ( ~ ( subclass @ ( image @ successor_relation @ SV43 ) @ SV43 ) )
        = $true )
      | ( ( inductive @ SV43 )
        = $true )
      | ( ( member @ null_class @ SV43 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[819]) ).

thf(919,plain,
    ! [SV289: $i,SV258: $i,SV183: $i,SV50: $i] :
      ( ( ~ ( member @ ( ordered_pair @ SV50 @ SV183 ) @ ( compose @ SV258 @ SV289 ) )
        | ( member @ SV183 @ ( image @ SV258 @ ( image @ SV289 @ ( singleton @ SV50 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[823]) ).

thf(920,plain,
    ! [SV290: $i,SV259: $i,SV184: $i,SV51: $i] :
      ( ( ~ ( member @ SV51 @ ( image @ SV184 @ ( image @ SV259 @ ( singleton @ SV290 ) ) ) )
        | ~ ( member @ ( ordered_pair @ SV290 @ SV51 ) @ ( cross_product @ universal_class @ universal_class ) )
        | ( member @ ( ordered_pair @ SV290 @ SV51 ) @ ( compose @ SV184 @ SV259 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[824]) ).

thf(921,plain,
    ! [SV56: $i] :
      ( ( ( ~ ( subclass @ ( compose @ SV56 @ ( inverse @ SV56 ) ) @ identity_relation ) )
        = $true )
      | ( ( function @ SV56 )
        = $true )
      | ( ( subclass @ SV56 @ ( cross_product @ universal_class @ universal_class ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[829]) ).

thf(922,plain,
    ! [SV185: $i,SV57: $i] :
      ( ( ( function @ SV57 )
        = $false )
      | ( ( ~ ( member @ SV185 @ universal_class )
          | ( member @ ( image @ SV57 @ SV185 ) @ universal_class ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[830]) ).

thf(923,plain,
    ! [SV61: $i] :
      ( ( ( SV61 = null_class )
        = $true )
      | ( ( member @ ( apply @ choice @ SV61 ) @ SV61 )
        = $true )
      | ( ( member @ SV61 @ universal_class )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[831]) ).

thf(924,plain,
    ! [SV64: $i] :
      ( ( ( ~ ( function @ SV64 ) )
        = $true )
      | ( ( one_to_one @ SV64 )
        = $true )
      | ( ( function @ ( inverse @ SV64 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[834]) ).

thf(925,plain,
    ! [SV260: $i,SV187: $i,SV70: $i] :
      ( ( ( ~ ( compatible @ SV70 @ SV187 @ SV260 ) )
        = $true )
      | ( ( function @ SV70 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[838]) ).

thf(926,plain,
    ! [SV261: $i,SV188: $i,SV71: $i] :
      ( ( ( ~ ( compatible @ SV71 @ SV188 @ SV261 ) )
        = $true )
      | ( ( ( domain_of @ ( domain_of @ SV188 ) )
          = ( domain_of @ SV71 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[839]) ).

thf(927,plain,
    ! [SV262: $i,SV189: $i,SV72: $i] :
      ( ( ( ~ ( compatible @ SV72 @ SV189 @ SV262 ) )
        = $true )
      | ( ( subclass @ ( range_of @ SV72 ) @ ( domain_of @ ( domain_of @ SV262 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[840]) ).

thf(928,plain,
    ! [SV263: $i,SV190: $i,SV73: $i] :
      ( ( ( ~ ( homomorphism @ SV73 @ SV190 @ SV263 ) )
        = $true )
      | ( ( operation @ SV190 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[841]) ).

thf(929,plain,
    ! [SV264: $i,SV191: $i,SV74: $i] :
      ( ( ( ~ ( homomorphism @ SV74 @ SV191 @ SV264 ) )
        = $true )
      | ( ( operation @ SV264 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[842]) ).

thf(930,plain,
    ! [SV265: $i,SV192: $i,SV75: $i] :
      ( ( ( ~ ( homomorphism @ SV75 @ SV192 @ SV265 ) )
        = $true )
      | ( ( compatible @ SV75 @ SV192 @ SV265 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[843]) ).

thf(931,plain,
    ! [SV291: $i,SV266: $i,SV193: $i,SV76: $i] :
      ( ( ! [SY527: $i] :
            ( ~ ( homomorphism @ SV76 @ SV193 @ SV266 )
            | ~ ( member @ ( ordered_pair @ SV291 @ SY527 ) @ ( domain_of @ SV193 ) )
            | ( ( apply @ SV266 @ ( ordered_pair @ ( apply @ SV76 @ SV291 ) @ ( apply @ SV76 @ SY527 ) ) )
              = ( apply @ SV76 @ ( apply @ SV193 @ ( ordered_pair @ SV291 @ SY527 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[844]) ).

thf(932,plain,
    ! [SV267: $i,SV194: $i,SV77: $i] :
      ( ( ( ~ ( operation @ SV77 ) )
        = $true )
      | ( ( ~ ( operation @ SV194 )
          | ~ ( compatible @ SV267 @ SV77 @ SV194 )
          | ( member @ ( ordered_pair @ ( not_homomorphism1 @ SV267 @ SV77 @ SV194 ) @ ( not_homomorphism2 @ SV267 @ SV77 @ SV194 ) ) @ ( domain_of @ SV77 ) )
          | ( homomorphism @ SV267 @ SV77 @ SV194 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[845]) ).

thf(933,plain,
    ! [SV292: $i,SV268: $i,SV195: $i,SV78: $i] :
      ( ( ~ ( member @ ( ordered_pair @ SV78 @ SV195 ) @ ( cross_product @ SV268 @ SV292 ) )
        | ( member @ SV78 @ ( unordered_pair @ SV78 @ SV195 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[846]) ).

thf(934,plain,
    ! [SV293: $i,SV269: $i,SV196: $i,SV79: $i] :
      ( ( ~ ( member @ ( ordered_pair @ SV79 @ SV196 ) @ ( cross_product @ SV269 @ SV293 ) )
        | ( member @ SV196 @ ( unordered_pair @ SV79 @ SV196 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[847]) ).

thf(935,plain,
    ! [SV294: $i,SV270: $i,SV197: $i,SV80: $i] :
      ( ( ~ ( member @ ( ordered_pair @ SV80 @ SV197 ) @ ( cross_product @ SV270 @ SV294 ) )
        | ( member @ SV80 @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[848]) ).

thf(936,plain,
    ! [SV295: $i,SV271: $i,SV198: $i,SV81: $i] :
      ( ( ~ ( member @ ( ordered_pair @ SV81 @ SV198 ) @ ( cross_product @ SV271 @ SV295 ) )
        | ( member @ SV198 @ universal_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[849]) ).

thf(937,plain,
    ! [SV272: $i,SV199: $i,SV83: $i] :
      ( ( ( ~ ( subclass @ SV83 @ SV199 ) )
        = $true )
      | ( ( ~ ( subclass @ SV199 @ SV272 )
          | ( subclass @ SV83 @ SV272 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[850]) ).

thf(938,plain,
    ! [SV200: $i,SV84: $i] :
      ( ( ( member @ ( not_subclass_element @ SV84 @ SV200 ) @ SV84 )
        = $true )
      | ( ( member @ ( not_subclass_element @ SV200 @ SV84 ) @ SV200 )
        = $true )
      | ( ( SV84 = SV200 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[851]) ).

thf(939,plain,
    ! [SV201: $i,SV85: $i] :
      ( ( ( member @ ( not_subclass_element @ SV85 @ SV201 ) @ SV201 )
        = $false )
      | ( ( ( SV85 = SV201 )
          | ( member @ ( not_subclass_element @ SV201 @ SV85 ) @ SV201 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[852]) ).

thf(940,plain,
    ! [SV202: $i,SV86: $i] :
      ( ( ( member @ ( not_subclass_element @ SV86 @ SV202 ) @ SV202 )
        = $false )
      | ( ( ( SV202 = SV86 )
          | ( member @ ( not_subclass_element @ SV202 @ SV86 ) @ SV202 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[853]) ).

thf(941,plain,
    ! [SV203: $i,SV87: $i] :
      ( ( ( member @ ( not_subclass_element @ SV87 @ SV203 ) @ SV203 )
        = $false )
      | ( ( ~ ( member @ ( not_subclass_element @ SV203 @ SV87 ) @ SV87 )
          | ( SV87 = SV203 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[854]) ).

thf(942,plain,
    ! [SV210: $i,SV98: $i] :
      ( ( ( member @ SV98 @ universal_class )
        = $true )
      | ( ( member @ SV210 @ universal_class )
        = $true )
      | ( ( ( unordered_pair @ SV98 @ SV210 )
          = null_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[859]) ).

thf(943,plain,
    ! [SV273: $i,SV211: $i,SV99: $i] :
      ( ( ( ~ ( member @ SV99 @ SV211 ) )
        = $true )
      | ( ( ~ ( member @ SV273 @ SV211 )
          | ( subclass @ ( unordered_pair @ SV99 @ SV273 ) @ SV211 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[860]) ).

thf(944,plain,
    ! [SV213: $i,SV103: $i] :
      ( ( ( member @ SV103 @ ( singleton @ SV213 ) )
        = $false )
      | ( ( SV103 = SV213 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[862]) ).

thf(945,plain,
    ! [SV214: $i,SV112: $i] :
      ( ( ( member @ SV112 @ SV214 )
        = $false )
      | ( ( subclass @ ( singleton @ SV112 ) @ SV214 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[866]) ).

thf(946,plain,
    ! [SV215: $i,SV113: $i] :
      ( ( ( subclass @ SV113 @ ( singleton @ SV215 ) )
        = $false )
      | ( ( ( SV113 = null_class )
          | ( ( singleton @ SV215 )
            = SV113 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[867]) ).

thf(947,plain,
    ! [SV221: $i,SV121: $i] :
      ( ( ( member @ SV121 @ universal_class )
        = $false )
      | ( ( ( ( unordered_pair @ null_class @ ( singleton @ ( singleton @ SV121 ) ) )
            = ( ordered_pair @ SV221 @ SV121 ) )
          | ( member @ SV221 @ universal_class ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[871]) ).

thf(948,plain,
    ! [SV222: $i,SV122: $i] :
      ( ( ( member @ SV122 @ universal_class )
        = $true )
      | ( ( member @ SV222 @ universal_class )
        = $true )
      | ( ( ( unordered_pair @ null_class @ ( singleton @ null_class ) )
          = ( ordered_pair @ SV122 @ SV222 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[872]) ).

thf(949,plain,
    ! [SV223: $i,SV123: $i] :
      ( ( ( member @ ( ordered_pair @ SV123 @ SV223 ) @ ( cross_product @ universal_class @ universal_class ) )
        = $false )
      | ( ( member @ ( ordered_pair @ ( first @ ( ordered_pair @ SV123 @ SV223 ) ) @ ( second @ ( ordered_pair @ SV123 @ SV223 ) ) ) @ ( cross_product @ universal_class @ universal_class ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[873]) ).

thf(950,plain,
    ! [SV224: $i,SV128: $i] :
      ( ( ( ( singleton @ SV128 )
          = ( singleton @ SV224 ) )
        = $false )
      | ( ( ~ ( member @ SV128 @ universal_class )
          | ( SV128 = SV224 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[874]) ).

thf(951,plain,
    ! [SV296: $i,SV274: $i,SV225: $i,SV129: $i] :
      ( ( ~ ( member @ ( ordered_pair @ SV129 @ SV225 ) @ ( cross_product @ SV274 @ SV296 ) )
        | ( ( unordered_pair @ SV129 @ SV225 )
         != null_class ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[875]) ).

thf(952,plain,
    ! [SV226: $i,SV130: $i] :
      ( ( ( ( singleton @ ( member_of @ SV130 ) )
          = SV130 )
        = $false )
      | ( ( ~ ( member @ SV226 @ SV130 )
          | ( ( member_of @ SV130 )
            = SV226 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[876]) ).

thf(953,plain,
    ! [SV131: $i] :
      ( ( ( ( singleton @ ( not_subclass_element @ SV131 @ null_class ) )
          = SV131 )
        = $true )
      | ( ( SV131 = null_class )
        = $true )
      | ( ( ( not_subclass_element @ ( intersection @ ( complement @ ( singleton @ ( not_subclass_element @ SV131 @ null_class ) ) ) @ SV131 ) @ null_class )
          = ( not_subclass_element @ SV131 @ null_class ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[877]) ).

thf(954,plain,
    ! [SV275: $i,SV227: $i,SV132: $i] :
      ( ( ( ( unordered_pair @ SV132 @ SV227 )
         != ( unordered_pair @ SV132 @ SV275 ) )
        = $true )
      | ( ( ~ ( member @ ( ordered_pair @ SV227 @ SV275 ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( SV227 = SV275 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[878]) ).

thf(955,plain,
    ! [SV276: $i,SV228: $i,SV133: $i] :
      ( ( ( ~ ( function @ SV133 ) )
        = $true )
      | ( ( ( ( domain_of @ ( domain_of @ SV228 ) )
           != ( domain_of @ SV133 ) )
          | ~ ( subclass @ ( range_of @ SV133 ) @ ( domain_of @ ( domain_of @ SV276 ) ) )
          | ( compatible @ SV133 @ SV228 @ SV276 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[879]) ).

thf(956,plain,
    ! [SV229: $i,SV134: $i] :
      ( ( ( SV134 = SV229 )
        = $false )
      | ( ( subclass @ SV134 @ SV229 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[880]) ).

thf(957,plain,
    ! [SV230: $i,SV135: $i] :
      ( ( ( member @ SV135 @ universal_class )
        = $false )
      | ( ( ( unordered_pair @ SV135 @ SV230 )
         != null_class )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[881]) ).

thf(958,plain,
    ! [SV136: $i] :
      ( ( ( ( cross_product @ ( domain_of @ ( domain_of @ SV136 ) ) @ ( domain_of @ ( domain_of @ SV136 ) ) )
         != ( domain_of @ SV136 ) )
        = $true )
      | ( ( ~ ( subclass @ ( range_of @ SV136 ) @ ( domain_of @ ( domain_of @ SV136 ) ) )
          | ( operation @ SV136 ) )
        = $true )
      | ( ( function @ SV136 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[882]) ).

thf(959,plain,
    ! [SV231: $i,SV137: $i] :
      ( ( ( ( successor @ SV137 )
          = SV231 )
        = $false )
      | ( ( ~ ( member @ ( ordered_pair @ SV137 @ SV231 ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( member @ ( ordered_pair @ SV137 @ SV231 ) @ successor_relation ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[883]) ).

thf(960,plain,
    ! [SV297: $i,SV277: $i,SV232: $i,SV138: $i] :
      ( ( ( ( ordered_pair @ SV138 @ SV232 )
         != ( ordered_pair @ SV277 @ SV297 ) )
        | ~ ( member @ SV138 @ universal_class )
        | ( SV138 = SV277 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[884]) ).

thf(961,plain,
    ! [SV278: $i,SV233: $i,SV139: $i] :
      ( ( ( ( unordered_pair @ SV139 @ SV233 )
         != ( singleton @ SV278 ) )
        = $true )
      | ( ( ~ ( member @ SV278 @ universal_class )
          | ( SV278 = SV139 )
          | ( SV278 = SV233 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[885]) ).

thf(962,plain,
    ! [SV234: $i,SV140: $i] :
      ( ( ( ( singleton @ SV140 )
          = ( singleton @ SV234 ) )
        = $false )
      | ( ( ~ ( member @ SV234 @ universal_class )
          | ( SV140 = SV234 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[886]) ).

thf(963,plain,
    ! [SV141: $i] :
      ( ( ( ( singleton @ SV141 )
          = null_class )
        = $false )
      | ( ( member @ SV141 @ universal_class )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[887]) ).

thf(964,plain,
    ! [SV279: $i,SV235: $i,SV143: $i] :
      ( ( ( ~ ( operation @ SV143 ) )
        = $true )
      | ( ( ~ ( operation @ SV235 )
          | ~ ( compatible @ SV279 @ SV143 @ SV235 )
          | ( ( apply @ SV235 @ ( ordered_pair @ ( apply @ SV279 @ ( not_homomorphism1 @ SV279 @ SV143 @ SV235 ) ) @ ( apply @ SV279 @ ( not_homomorphism2 @ SV279 @ SV143 @ SV235 ) ) ) )
           != ( apply @ SV279 @ ( apply @ SV143 @ ( ordered_pair @ ( not_homomorphism1 @ SV279 @ SV143 @ SV235 ) @ ( not_homomorphism2 @ SV279 @ SV143 @ SV235 ) ) ) ) )
          | ( homomorphism @ SV279 @ SV143 @ SV235 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[889]) ).

thf(965,plain,
    ! [SV298: $i,SV280: $i,SV236: $i,SV144: $i] :
      ( ( ( ( ordered_pair @ SV144 @ SV236 )
         != ( ordered_pair @ SV280 @ SV298 ) )
        | ~ ( member @ SV236 @ universal_class )
        | ( SV236 = SV298 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[890]) ).

thf(966,plain,
    ! [SV237: $i,SV145: $i] :
      ( ( ( member @ SV145 @ universal_class )
        = $false )
      | ( ( ( unordered_pair @ SV237 @ SV145 )
         != null_class )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[891]) ).

thf(967,plain,
    ! [SV238: $i,SV146: $i] :
      ( ( ( SV146 = SV238 )
        = $false )
      | ( ( subclass @ SV238 @ SV146 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[892]) ).

thf(968,plain,
    ! [SV281: $i,SV239: $i,SV147: $i] :
      ( ( ( ( unordered_pair @ SV147 @ SV239 )
         != ( unordered_pair @ SV281 @ SV239 ) )
        = $true )
      | ( ( ~ ( member @ ( ordered_pair @ SV147 @ SV281 ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( SV147 = SV281 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[893]) ).

thf(969,plain,
    ! [SV240: $i,SV148: $i] :
      ( ( ( ( restrict @ SV148 @ ( singleton @ SV240 ) @ universal_class )
          = null_class )
        = $false )
      | ( ( ~ ( member @ SV240 @ ( domain_of @ SV148 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[894]) ).

thf(970,plain,
    ! [SV241: $i,SV149: $i,SV1: $i] :
      ( ( ( subclass @ SV1 @ SV149 )
        = $false )
      | ( ( ~ ( member @ SV241 @ SV1 )
          | ( member @ SV241 @ SV149 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[895]) ).

thf(971,plain,
    ! [SV5: $i,SV152: $i] :
      ( ( ( ~ ( subclass @ SV152 @ SV5 ) )
        = $true )
      | ( ( SV5 = SV152 )
        = $true )
      | ( ( subclass @ SV5 @ SV152 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[897]) ).

thf(972,plain,
    ! [SV242: $i,SV153: $i,SV6: $i] :
      ( ( ( member @ SV6 @ ( unordered_pair @ SV153 @ SV242 ) )
        = $false )
      | ( ( ( SV6 = SV153 )
          | ( SV6 = SV242 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[898]) ).

thf(973,plain,
    ! [SV282: $i,SV243: $i,SV158: $i,SV12: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV12 @ SV158 ) @ ( cross_product @ SV243 @ SV282 ) ) )
        = $true )
      | ( ( member @ SV12 @ SV243 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[901]) ).

thf(974,plain,
    ! [SV283: $i,SV244: $i,SV159: $i,SV13: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV13 @ SV159 ) @ ( cross_product @ SV244 @ SV283 ) ) )
        = $true )
      | ( ( member @ SV159 @ SV283 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[902]) ).

thf(975,plain,
    ! [SV284: $i,SV245: $i,SV160: $i,SV14: $i] :
      ( ( ( ~ ( member @ SV14 @ SV160 ) )
        = $true )
      | ( ( ~ ( member @ SV245 @ SV284 )
          | ( member @ ( ordered_pair @ SV14 @ SV245 ) @ ( cross_product @ SV160 @ SV284 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[903]) ).

thf(976,plain,
    ! [SV246: $i,SV161: $i,SV15: $i] :
      ( ( ( member @ SV15 @ ( cross_product @ SV161 @ SV246 ) )
        = $false )
      | ( ( ( ordered_pair @ ( first @ SV15 ) @ ( second @ SV15 ) )
          = SV15 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[904]) ).

thf(977,plain,
    ! [SV163: $i,SV17: $i] :
      ( ( ( ~ ( member @ SV17 @ SV163 ) )
        = $true )
      | ( ( member @ ( ordered_pair @ SV17 @ SV163 ) @ element_relation )
        = $true )
      | ( ( member @ ( ordered_pair @ SV17 @ SV163 ) @ ( cross_product @ universal_class @ universal_class ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[906]) ).

thf(978,plain,
    ! [SV247: $i,SV164: $i,SV18: $i] :
      ( ( ( member @ SV18 @ ( intersection @ SV164 @ SV247 ) )
        = $false )
      | ( ( member @ SV18 @ SV164 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[907]) ).

thf(979,plain,
    ! [SV248: $i,SV165: $i,SV19: $i] :
      ( ( ( member @ SV19 @ ( intersection @ SV165 @ SV248 ) )
        = $false )
      | ( ( member @ SV19 @ SV248 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[908]) ).

thf(980,plain,
    ! [SV249: $i,SV166: $i,SV20: $i] :
      ( ( ( member @ SV20 @ SV166 )
        = $false )
      | ( ( ~ ( member @ SV20 @ SV249 )
          | ( member @ SV20 @ ( intersection @ SV166 @ SV249 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[909]) ).

thf(981,plain,
    ! [SV167: $i,SV21: $i] :
      ( ( ( member @ SV21 @ SV167 )
        = $false )
      | ( ( member @ SV21 @ ( complement @ SV167 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[910]) ).

thf(982,plain,
    ! [SV168: $i,SV22: $i] :
      ( ( ( member @ SV22 @ ( complement @ SV168 ) )
        = $true )
      | ( ( member @ SV22 @ SV168 )
        = $true )
      | ( ( member @ SV22 @ universal_class )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[911]) ).

thf(983,plain,
    ! [SV27: $i,SV173: $i] :
      ( ( ( ( restrict @ SV173 @ ( singleton @ SV27 ) @ universal_class )
          = null_class )
        = $true )
      | ( ( member @ SV27 @ ( domain_of @ SV173 ) )
        = $true )
      | ( ( member @ SV27 @ universal_class )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[912]) ).

thf(984,plain,
    ! [SV285: $i,SV252: $i,SV174: $i,SV29: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV29 @ SV174 ) @ SV252 ) @ ( rotate @ SV285 ) ) )
        = $true )
      | ( ( member @ ( ordered_pair @ ( ordered_pair @ SV174 @ SV252 ) @ SV29 ) @ SV285 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[913]) ).

thf(985,plain,
    ! [SV286: $i,SV253: $i,SV175: $i,SV30: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV30 @ SV175 ) @ SV253 ) @ SV286 ) )
        = $true )
      | ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV253 @ SV30 ) @ SV175 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
          | ( member @ ( ordered_pair @ ( ordered_pair @ SV253 @ SV30 ) @ SV175 ) @ ( rotate @ SV286 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[914]) ).

thf(986,plain,
    ! [SV287: $i,SV254: $i,SV176: $i,SV32: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV32 @ SV176 ) @ SV254 ) @ ( flip @ SV287 ) ) )
        = $true )
      | ( ( member @ ( ordered_pair @ ( ordered_pair @ SV176 @ SV32 ) @ SV254 ) @ SV287 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[915]) ).

thf(987,plain,
    ! [SV288: $i,SV255: $i,SV177: $i,SV33: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV33 @ SV177 ) @ SV255 ) @ SV288 ) )
        = $true )
      | ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV177 @ SV33 ) @ SV255 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
          | ( member @ ( ordered_pair @ ( ordered_pair @ SV177 @ SV33 ) @ SV255 ) @ ( flip @ SV288 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[916]) ).

thf(988,plain,
    ! [SV43: $i] :
      ( ( ( subclass @ ( image @ successor_relation @ SV43 ) @ SV43 )
        = $false )
      | ( ( inductive @ SV43 )
        = $true )
      | ( ( member @ null_class @ SV43 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[918]) ).

thf(989,plain,
    ! [SV289: $i,SV258: $i,SV183: $i,SV50: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV50 @ SV183 ) @ ( compose @ SV258 @ SV289 ) ) )
        = $true )
      | ( ( member @ SV183 @ ( image @ SV258 @ ( image @ SV289 @ ( singleton @ SV50 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[919]) ).

thf(990,plain,
    ! [SV290: $i,SV259: $i,SV184: $i,SV51: $i] :
      ( ( ( ~ ( member @ SV51 @ ( image @ SV184 @ ( image @ SV259 @ ( singleton @ SV290 ) ) ) ) )
        = $true )
      | ( ( ~ ( member @ ( ordered_pair @ SV290 @ SV51 ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( member @ ( ordered_pair @ SV290 @ SV51 ) @ ( compose @ SV184 @ SV259 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[920]) ).

thf(991,plain,
    ! [SV56: $i] :
      ( ( ( subclass @ ( compose @ SV56 @ ( inverse @ SV56 ) ) @ identity_relation )
        = $false )
      | ( ( function @ SV56 )
        = $true )
      | ( ( subclass @ SV56 @ ( cross_product @ universal_class @ universal_class ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[921]) ).

thf(992,plain,
    ! [SV57: $i,SV185: $i] :
      ( ( ( ~ ( member @ SV185 @ universal_class ) )
        = $true )
      | ( ( member @ ( image @ SV57 @ SV185 ) @ universal_class )
        = $true )
      | ( ( function @ SV57 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[922]) ).

thf(993,plain,
    ! [SV64: $i] :
      ( ( ( function @ SV64 )
        = $false )
      | ( ( one_to_one @ SV64 )
        = $true )
      | ( ( function @ ( inverse @ SV64 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[924]) ).

thf(994,plain,
    ! [SV260: $i,SV187: $i,SV70: $i] :
      ( ( ( compatible @ SV70 @ SV187 @ SV260 )
        = $false )
      | ( ( function @ SV70 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[925]) ).

thf(995,plain,
    ! [SV261: $i,SV188: $i,SV71: $i] :
      ( ( ( compatible @ SV71 @ SV188 @ SV261 )
        = $false )
      | ( ( ( domain_of @ ( domain_of @ SV188 ) )
          = ( domain_of @ SV71 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[926]) ).

thf(996,plain,
    ! [SV262: $i,SV189: $i,SV72: $i] :
      ( ( ( compatible @ SV72 @ SV189 @ SV262 )
        = $false )
      | ( ( subclass @ ( range_of @ SV72 ) @ ( domain_of @ ( domain_of @ SV262 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[927]) ).

thf(997,plain,
    ! [SV263: $i,SV190: $i,SV73: $i] :
      ( ( ( homomorphism @ SV73 @ SV190 @ SV263 )
        = $false )
      | ( ( operation @ SV190 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[928]) ).

thf(998,plain,
    ! [SV264: $i,SV191: $i,SV74: $i] :
      ( ( ( homomorphism @ SV74 @ SV191 @ SV264 )
        = $false )
      | ( ( operation @ SV264 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[929]) ).

thf(999,plain,
    ! [SV265: $i,SV192: $i,SV75: $i] :
      ( ( ( homomorphism @ SV75 @ SV192 @ SV265 )
        = $false )
      | ( ( compatible @ SV75 @ SV192 @ SV265 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[930]) ).

thf(1000,plain,
    ! [SV299: $i,SV291: $i,SV266: $i,SV193: $i,SV76: $i] :
      ( ( ~ ( homomorphism @ SV76 @ SV193 @ SV266 )
        | ~ ( member @ ( ordered_pair @ SV291 @ SV299 ) @ ( domain_of @ SV193 ) )
        | ( ( apply @ SV266 @ ( ordered_pair @ ( apply @ SV76 @ SV291 ) @ ( apply @ SV76 @ SV299 ) ) )
          = ( apply @ SV76 @ ( apply @ SV193 @ ( ordered_pair @ SV291 @ SV299 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[931]) ).

thf(1001,plain,
    ! [SV267: $i,SV194: $i,SV77: $i] :
      ( ( ( operation @ SV77 )
        = $false )
      | ( ( ~ ( operation @ SV194 )
          | ~ ( compatible @ SV267 @ SV77 @ SV194 )
          | ( member @ ( ordered_pair @ ( not_homomorphism1 @ SV267 @ SV77 @ SV194 ) @ ( not_homomorphism2 @ SV267 @ SV77 @ SV194 ) ) @ ( domain_of @ SV77 ) )
          | ( homomorphism @ SV267 @ SV77 @ SV194 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[932]) ).

thf(1002,plain,
    ! [SV292: $i,SV268: $i,SV195: $i,SV78: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV78 @ SV195 ) @ ( cross_product @ SV268 @ SV292 ) ) )
        = $true )
      | ( ( member @ SV78 @ ( unordered_pair @ SV78 @ SV195 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[933]) ).

thf(1003,plain,
    ! [SV293: $i,SV269: $i,SV196: $i,SV79: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV79 @ SV196 ) @ ( cross_product @ SV269 @ SV293 ) ) )
        = $true )
      | ( ( member @ SV196 @ ( unordered_pair @ SV79 @ SV196 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[934]) ).

thf(1004,plain,
    ! [SV294: $i,SV270: $i,SV197: $i,SV80: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV80 @ SV197 ) @ ( cross_product @ SV270 @ SV294 ) ) )
        = $true )
      | ( ( member @ SV80 @ universal_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[935]) ).

thf(1005,plain,
    ! [SV295: $i,SV271: $i,SV198: $i,SV81: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV81 @ SV198 ) @ ( cross_product @ SV271 @ SV295 ) ) )
        = $true )
      | ( ( member @ SV198 @ universal_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[936]) ).

thf(1006,plain,
    ! [SV272: $i,SV199: $i,SV83: $i] :
      ( ( ( subclass @ SV83 @ SV199 )
        = $false )
      | ( ( ~ ( subclass @ SV199 @ SV272 )
          | ( subclass @ SV83 @ SV272 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[937]) ).

thf(1007,plain,
    ! [SV201: $i,SV85: $i] :
      ( ( ( SV85 = SV201 )
        = $true )
      | ( ( member @ ( not_subclass_element @ SV201 @ SV85 ) @ SV201 )
        = $true )
      | ( ( member @ ( not_subclass_element @ SV85 @ SV201 ) @ SV201 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[939]) ).

thf(1008,plain,
    ! [SV86: $i,SV202: $i] :
      ( ( ( SV202 = SV86 )
        = $true )
      | ( ( member @ ( not_subclass_element @ SV202 @ SV86 ) @ SV202 )
        = $true )
      | ( ( member @ ( not_subclass_element @ SV86 @ SV202 ) @ SV202 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[940]) ).

thf(1009,plain,
    ! [SV87: $i,SV203: $i] :
      ( ( ( ~ ( member @ ( not_subclass_element @ SV203 @ SV87 ) @ SV87 ) )
        = $true )
      | ( ( SV87 = SV203 )
        = $true )
      | ( ( member @ ( not_subclass_element @ SV87 @ SV203 ) @ SV203 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[941]) ).

thf(1010,plain,
    ! [SV273: $i,SV211: $i,SV99: $i] :
      ( ( ( member @ SV99 @ SV211 )
        = $false )
      | ( ( ~ ( member @ SV273 @ SV211 )
          | ( subclass @ ( unordered_pair @ SV99 @ SV273 ) @ SV211 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[943]) ).

thf(1011,plain,
    ! [SV215: $i,SV113: $i] :
      ( ( ( SV113 = null_class )
        = $true )
      | ( ( ( singleton @ SV215 )
          = SV113 )
        = $true )
      | ( ( subclass @ SV113 @ ( singleton @ SV215 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[946]) ).

thf(1012,plain,
    ! [SV221: $i,SV121: $i] :
      ( ( ( ( unordered_pair @ null_class @ ( singleton @ ( singleton @ SV121 ) ) )
          = ( ordered_pair @ SV221 @ SV121 ) )
        = $true )
      | ( ( member @ SV221 @ universal_class )
        = $true )
      | ( ( member @ SV121 @ universal_class )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[947]) ).

thf(1013,plain,
    ! [SV224: $i,SV128: $i] :
      ( ( ( ~ ( member @ SV128 @ universal_class ) )
        = $true )
      | ( ( SV128 = SV224 )
        = $true )
      | ( ( ( singleton @ SV128 )
          = ( singleton @ SV224 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[950]) ).

thf(1014,plain,
    ! [SV296: $i,SV274: $i,SV225: $i,SV129: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV129 @ SV225 ) @ ( cross_product @ SV274 @ SV296 ) ) )
        = $true )
      | ( ( ( unordered_pair @ SV129 @ SV225 )
         != null_class )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[951]) ).

thf(1015,plain,
    ! [SV130: $i,SV226: $i] :
      ( ( ( ~ ( member @ SV226 @ SV130 ) )
        = $true )
      | ( ( ( member_of @ SV130 )
          = SV226 )
        = $true )
      | ( ( ( singleton @ ( member_of @ SV130 ) )
          = SV130 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[952]) ).

thf(1016,plain,
    ! [SV275: $i,SV227: $i,SV132: $i] :
      ( ( ( ( unordered_pair @ SV132 @ SV227 )
          = ( unordered_pair @ SV132 @ SV275 ) )
        = $false )
      | ( ( ~ ( member @ ( ordered_pair @ SV227 @ SV275 ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( SV227 = SV275 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[954]) ).

thf(1017,plain,
    ! [SV276: $i,SV228: $i,SV133: $i] :
      ( ( ( function @ SV133 )
        = $false )
      | ( ( ( ( domain_of @ ( domain_of @ SV228 ) )
           != ( domain_of @ SV133 ) )
          | ~ ( subclass @ ( range_of @ SV133 ) @ ( domain_of @ ( domain_of @ SV276 ) ) )
          | ( compatible @ SV133 @ SV228 @ SV276 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[955]) ).

thf(1018,plain,
    ! [SV230: $i,SV135: $i] :
      ( ( ( ( unordered_pair @ SV135 @ SV230 )
          = null_class )
        = $false )
      | ( ( member @ SV135 @ universal_class )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[957]) ).

thf(1019,plain,
    ! [SV136: $i] :
      ( ( ( ( cross_product @ ( domain_of @ ( domain_of @ SV136 ) ) @ ( domain_of @ ( domain_of @ SV136 ) ) )
          = ( domain_of @ SV136 ) )
        = $false )
      | ( ( ~ ( subclass @ ( range_of @ SV136 ) @ ( domain_of @ ( domain_of @ SV136 ) ) )
          | ( operation @ SV136 ) )
        = $true )
      | ( ( function @ SV136 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[958]) ).

thf(1020,plain,
    ! [SV231: $i,SV137: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV137 @ SV231 ) @ ( cross_product @ universal_class @ universal_class ) ) )
        = $true )
      | ( ( member @ ( ordered_pair @ SV137 @ SV231 ) @ successor_relation )
        = $true )
      | ( ( ( successor @ SV137 )
          = SV231 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[959]) ).

thf(1021,plain,
    ! [SV297: $i,SV277: $i,SV232: $i,SV138: $i] :
      ( ( ( ( ordered_pair @ SV138 @ SV232 )
         != ( ordered_pair @ SV277 @ SV297 ) )
        = $true )
      | ( ( ~ ( member @ SV138 @ universal_class )
          | ( SV138 = SV277 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[960]) ).

thf(1022,plain,
    ! [SV278: $i,SV233: $i,SV139: $i] :
      ( ( ( ( unordered_pair @ SV139 @ SV233 )
          = ( singleton @ SV278 ) )
        = $false )
      | ( ( ~ ( member @ SV278 @ universal_class )
          | ( SV278 = SV139 )
          | ( SV278 = SV233 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[961]) ).

thf(1023,plain,
    ! [SV140: $i,SV234: $i] :
      ( ( ( ~ ( member @ SV234 @ universal_class ) )
        = $true )
      | ( ( SV140 = SV234 )
        = $true )
      | ( ( ( singleton @ SV140 )
          = ( singleton @ SV234 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[962]) ).

thf(1024,plain,
    ! [SV279: $i,SV235: $i,SV143: $i] :
      ( ( ( operation @ SV143 )
        = $false )
      | ( ( ~ ( operation @ SV235 )
          | ~ ( compatible @ SV279 @ SV143 @ SV235 )
          | ( ( apply @ SV235 @ ( ordered_pair @ ( apply @ SV279 @ ( not_homomorphism1 @ SV279 @ SV143 @ SV235 ) ) @ ( apply @ SV279 @ ( not_homomorphism2 @ SV279 @ SV143 @ SV235 ) ) ) )
           != ( apply @ SV279 @ ( apply @ SV143 @ ( ordered_pair @ ( not_homomorphism1 @ SV279 @ SV143 @ SV235 ) @ ( not_homomorphism2 @ SV279 @ SV143 @ SV235 ) ) ) ) )
          | ( homomorphism @ SV279 @ SV143 @ SV235 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[964]) ).

thf(1025,plain,
    ! [SV298: $i,SV280: $i,SV236: $i,SV144: $i] :
      ( ( ( ( ordered_pair @ SV144 @ SV236 )
         != ( ordered_pair @ SV280 @ SV298 ) )
        = $true )
      | ( ( ~ ( member @ SV236 @ universal_class )
          | ( SV236 = SV298 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[965]) ).

thf(1026,plain,
    ! [SV145: $i,SV237: $i] :
      ( ( ( ( unordered_pair @ SV237 @ SV145 )
          = null_class )
        = $false )
      | ( ( member @ SV145 @ universal_class )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[966]) ).

thf(1027,plain,
    ! [SV281: $i,SV239: $i,SV147: $i] :
      ( ( ( ( unordered_pair @ SV147 @ SV239 )
          = ( unordered_pair @ SV281 @ SV239 ) )
        = $false )
      | ( ( ~ ( member @ ( ordered_pair @ SV147 @ SV281 ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( SV147 = SV281 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[968]) ).

thf(1028,plain,
    ! [SV148: $i,SV240: $i] :
      ( ( ( member @ SV240 @ ( domain_of @ SV148 ) )
        = $false )
      | ( ( ( restrict @ SV148 @ ( singleton @ SV240 ) @ universal_class )
          = null_class )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[969]) ).

thf(1029,plain,
    ! [SV149: $i,SV1: $i,SV241: $i] :
      ( ( ( ~ ( member @ SV241 @ SV1 ) )
        = $true )
      | ( ( member @ SV241 @ SV149 )
        = $true )
      | ( ( subclass @ SV1 @ SV149 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[970]) ).

thf(1030,plain,
    ! [SV5: $i,SV152: $i] :
      ( ( ( subclass @ SV152 @ SV5 )
        = $false )
      | ( ( SV5 = SV152 )
        = $true )
      | ( ( subclass @ SV5 @ SV152 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[971]) ).

thf(1031,plain,
    ! [SV242: $i,SV153: $i,SV6: $i] :
      ( ( ( SV6 = SV153 )
        = $true )
      | ( ( SV6 = SV242 )
        = $true )
      | ( ( member @ SV6 @ ( unordered_pair @ SV153 @ SV242 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[972]) ).

thf(1032,plain,
    ! [SV282: $i,SV243: $i,SV158: $i,SV12: $i] :
      ( ( ( member @ ( ordered_pair @ SV12 @ SV158 ) @ ( cross_product @ SV243 @ SV282 ) )
        = $false )
      | ( ( member @ SV12 @ SV243 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[973]) ).

thf(1033,plain,
    ! [SV283: $i,SV244: $i,SV159: $i,SV13: $i] :
      ( ( ( member @ ( ordered_pair @ SV13 @ SV159 ) @ ( cross_product @ SV244 @ SV283 ) )
        = $false )
      | ( ( member @ SV159 @ SV283 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[974]) ).

thf(1034,plain,
    ! [SV284: $i,SV245: $i,SV160: $i,SV14: $i] :
      ( ( ( member @ SV14 @ SV160 )
        = $false )
      | ( ( ~ ( member @ SV245 @ SV284 )
          | ( member @ ( ordered_pair @ SV14 @ SV245 ) @ ( cross_product @ SV160 @ SV284 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[975]) ).

thf(1035,plain,
    ! [SV163: $i,SV17: $i] :
      ( ( ( member @ SV17 @ SV163 )
        = $false )
      | ( ( member @ ( ordered_pair @ SV17 @ SV163 ) @ element_relation )
        = $true )
      | ( ( member @ ( ordered_pair @ SV17 @ SV163 ) @ ( cross_product @ universal_class @ universal_class ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[977]) ).

thf(1036,plain,
    ! [SV166: $i,SV249: $i,SV20: $i] :
      ( ( ( ~ ( member @ SV20 @ SV249 ) )
        = $true )
      | ( ( member @ SV20 @ ( intersection @ SV166 @ SV249 ) )
        = $true )
      | ( ( member @ SV20 @ SV166 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[980]) ).

thf(1037,plain,
    ! [SV285: $i,SV252: $i,SV174: $i,SV29: $i] :
      ( ( ( member @ ( ordered_pair @ ( ordered_pair @ SV29 @ SV174 ) @ SV252 ) @ ( rotate @ SV285 ) )
        = $false )
      | ( ( member @ ( ordered_pair @ ( ordered_pair @ SV174 @ SV252 ) @ SV29 ) @ SV285 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[984]) ).

thf(1038,plain,
    ! [SV286: $i,SV253: $i,SV175: $i,SV30: $i] :
      ( ( ( member @ ( ordered_pair @ ( ordered_pair @ SV30 @ SV175 ) @ SV253 ) @ SV286 )
        = $false )
      | ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV253 @ SV30 ) @ SV175 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
          | ( member @ ( ordered_pair @ ( ordered_pair @ SV253 @ SV30 ) @ SV175 ) @ ( rotate @ SV286 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[985]) ).

thf(1039,plain,
    ! [SV287: $i,SV254: $i,SV176: $i,SV32: $i] :
      ( ( ( member @ ( ordered_pair @ ( ordered_pair @ SV32 @ SV176 ) @ SV254 ) @ ( flip @ SV287 ) )
        = $false )
      | ( ( member @ ( ordered_pair @ ( ordered_pair @ SV176 @ SV32 ) @ SV254 ) @ SV287 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[986]) ).

thf(1040,plain,
    ! [SV288: $i,SV255: $i,SV177: $i,SV33: $i] :
      ( ( ( member @ ( ordered_pair @ ( ordered_pair @ SV33 @ SV177 ) @ SV255 ) @ SV288 )
        = $false )
      | ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV177 @ SV33 ) @ SV255 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
          | ( member @ ( ordered_pair @ ( ordered_pair @ SV177 @ SV33 ) @ SV255 ) @ ( flip @ SV288 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[987]) ).

thf(1041,plain,
    ! [SV289: $i,SV258: $i,SV183: $i,SV50: $i] :
      ( ( ( member @ ( ordered_pair @ SV50 @ SV183 ) @ ( compose @ SV258 @ SV289 ) )
        = $false )
      | ( ( member @ SV183 @ ( image @ SV258 @ ( image @ SV289 @ ( singleton @ SV50 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[989]) ).

thf(1042,plain,
    ! [SV290: $i,SV259: $i,SV184: $i,SV51: $i] :
      ( ( ( member @ SV51 @ ( image @ SV184 @ ( image @ SV259 @ ( singleton @ SV290 ) ) ) )
        = $false )
      | ( ( ~ ( member @ ( ordered_pair @ SV290 @ SV51 ) @ ( cross_product @ universal_class @ universal_class ) )
          | ( member @ ( ordered_pair @ SV290 @ SV51 ) @ ( compose @ SV184 @ SV259 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[990]) ).

thf(1043,plain,
    ! [SV57: $i,SV185: $i] :
      ( ( ( member @ SV185 @ universal_class )
        = $false )
      | ( ( member @ ( image @ SV57 @ SV185 ) @ universal_class )
        = $true )
      | ( ( function @ SV57 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[992]) ).

thf(1044,plain,
    ! [SV299: $i,SV291: $i,SV266: $i,SV193: $i,SV76: $i] :
      ( ( ( ~ ( homomorphism @ SV76 @ SV193 @ SV266 ) )
        = $true )
      | ( ( ~ ( member @ ( ordered_pair @ SV291 @ SV299 ) @ ( domain_of @ SV193 ) )
          | ( ( apply @ SV266 @ ( ordered_pair @ ( apply @ SV76 @ SV291 ) @ ( apply @ SV76 @ SV299 ) ) )
            = ( apply @ SV76 @ ( apply @ SV193 @ ( ordered_pair @ SV291 @ SV299 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1000]) ).

thf(1045,plain,
    ! [SV77: $i,SV267: $i,SV194: $i] :
      ( ( ( ~ ( operation @ SV194 ) )
        = $true )
      | ( ( ~ ( compatible @ SV267 @ SV77 @ SV194 )
          | ( member @ ( ordered_pair @ ( not_homomorphism1 @ SV267 @ SV77 @ SV194 ) @ ( not_homomorphism2 @ SV267 @ SV77 @ SV194 ) ) @ ( domain_of @ SV77 ) )
          | ( homomorphism @ SV267 @ SV77 @ SV194 ) )
        = $true )
      | ( ( operation @ SV77 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1001]) ).

thf(1046,plain,
    ! [SV292: $i,SV268: $i,SV195: $i,SV78: $i] :
      ( ( ( member @ ( ordered_pair @ SV78 @ SV195 ) @ ( cross_product @ SV268 @ SV292 ) )
        = $false )
      | ( ( member @ SV78 @ ( unordered_pair @ SV78 @ SV195 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1002]) ).

thf(1047,plain,
    ! [SV293: $i,SV269: $i,SV196: $i,SV79: $i] :
      ( ( ( member @ ( ordered_pair @ SV79 @ SV196 ) @ ( cross_product @ SV269 @ SV293 ) )
        = $false )
      | ( ( member @ SV196 @ ( unordered_pair @ SV79 @ SV196 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1003]) ).

thf(1048,plain,
    ! [SV294: $i,SV270: $i,SV197: $i,SV80: $i] :
      ( ( ( member @ ( ordered_pair @ SV80 @ SV197 ) @ ( cross_product @ SV270 @ SV294 ) )
        = $false )
      | ( ( member @ SV80 @ universal_class )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1004]) ).

thf(1049,plain,
    ! [SV295: $i,SV271: $i,SV198: $i,SV81: $i] :
      ( ( ( member @ ( ordered_pair @ SV81 @ SV198 ) @ ( cross_product @ SV271 @ SV295 ) )
        = $false )
      | ( ( member @ SV198 @ universal_class )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1005]) ).

thf(1050,plain,
    ! [SV83: $i,SV272: $i,SV199: $i] :
      ( ( ( ~ ( subclass @ SV199 @ SV272 ) )
        = $true )
      | ( ( subclass @ SV83 @ SV272 )
        = $true )
      | ( ( subclass @ SV83 @ SV199 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1006]) ).

thf(1051,plain,
    ! [SV87: $i,SV203: $i] :
      ( ( ( member @ ( not_subclass_element @ SV203 @ SV87 ) @ SV87 )
        = $false )
      | ( ( SV87 = SV203 )
        = $true )
      | ( ( member @ ( not_subclass_element @ SV87 @ SV203 ) @ SV203 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1009]) ).

thf(1052,plain,
    ! [SV99: $i,SV211: $i,SV273: $i] :
      ( ( ( ~ ( member @ SV273 @ SV211 ) )
        = $true )
      | ( ( subclass @ ( unordered_pair @ SV99 @ SV273 ) @ SV211 )
        = $true )
      | ( ( member @ SV99 @ SV211 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1010]) ).

thf(1053,plain,
    ! [SV224: $i,SV128: $i] :
      ( ( ( member @ SV128 @ universal_class )
        = $false )
      | ( ( SV128 = SV224 )
        = $true )
      | ( ( ( singleton @ SV128 )
          = ( singleton @ SV224 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1013]) ).

thf(1054,plain,
    ! [SV296: $i,SV274: $i,SV225: $i,SV129: $i] :
      ( ( ( member @ ( ordered_pair @ SV129 @ SV225 ) @ ( cross_product @ SV274 @ SV296 ) )
        = $false )
      | ( ( ( unordered_pair @ SV129 @ SV225 )
         != null_class )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1014]) ).

thf(1055,plain,
    ! [SV130: $i,SV226: $i] :
      ( ( ( member @ SV226 @ SV130 )
        = $false )
      | ( ( ( member_of @ SV130 )
          = SV226 )
        = $true )
      | ( ( ( singleton @ ( member_of @ SV130 ) )
          = SV130 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1015]) ).

thf(1056,plain,
    ! [SV132: $i,SV275: $i,SV227: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV227 @ SV275 ) @ ( cross_product @ universal_class @ universal_class ) ) )
        = $true )
      | ( ( SV227 = SV275 )
        = $true )
      | ( ( ( unordered_pair @ SV132 @ SV227 )
          = ( unordered_pair @ SV132 @ SV275 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1016]) ).

thf(1057,plain,
    ! [SV276: $i,SV133: $i,SV228: $i] :
      ( ( ( ( domain_of @ ( domain_of @ SV228 ) )
         != ( domain_of @ SV133 ) )
        = $true )
      | ( ( ~ ( subclass @ ( range_of @ SV133 ) @ ( domain_of @ ( domain_of @ SV276 ) ) )
          | ( compatible @ SV133 @ SV228 @ SV276 ) )
        = $true )
      | ( ( function @ SV133 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1017]) ).

thf(1058,plain,
    ! [SV136: $i] :
      ( ( ( ~ ( subclass @ ( range_of @ SV136 ) @ ( domain_of @ ( domain_of @ SV136 ) ) ) )
        = $true )
      | ( ( operation @ SV136 )
        = $true )
      | ( ( ( cross_product @ ( domain_of @ ( domain_of @ SV136 ) ) @ ( domain_of @ ( domain_of @ SV136 ) ) )
          = ( domain_of @ SV136 ) )
        = $false )
      | ( ( function @ SV136 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1019]) ).

thf(1059,plain,
    ! [SV231: $i,SV137: $i] :
      ( ( ( member @ ( ordered_pair @ SV137 @ SV231 ) @ ( cross_product @ universal_class @ universal_class ) )
        = $false )
      | ( ( member @ ( ordered_pair @ SV137 @ SV231 ) @ successor_relation )
        = $true )
      | ( ( ( successor @ SV137 )
          = SV231 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1020]) ).

thf(1060,plain,
    ! [SV297: $i,SV277: $i,SV232: $i,SV138: $i] :
      ( ( ( ( ordered_pair @ SV138 @ SV232 )
          = ( ordered_pair @ SV277 @ SV297 ) )
        = $false )
      | ( ( ~ ( member @ SV138 @ universal_class )
          | ( SV138 = SV277 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1021]) ).

thf(1061,plain,
    ! [SV233: $i,SV139: $i,SV278: $i] :
      ( ( ( ~ ( member @ SV278 @ universal_class ) )
        = $true )
      | ( ( ( SV278 = SV139 )
          | ( SV278 = SV233 ) )
        = $true )
      | ( ( ( unordered_pair @ SV139 @ SV233 )
          = ( singleton @ SV278 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1022]) ).

thf(1062,plain,
    ! [SV140: $i,SV234: $i] :
      ( ( ( member @ SV234 @ universal_class )
        = $false )
      | ( ( SV140 = SV234 )
        = $true )
      | ( ( ( singleton @ SV140 )
          = ( singleton @ SV234 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1023]) ).

thf(1063,plain,
    ! [SV143: $i,SV279: $i,SV235: $i] :
      ( ( ( ~ ( operation @ SV235 ) )
        = $true )
      | ( ( ~ ( compatible @ SV279 @ SV143 @ SV235 )
          | ( ( apply @ SV235 @ ( ordered_pair @ ( apply @ SV279 @ ( not_homomorphism1 @ SV279 @ SV143 @ SV235 ) ) @ ( apply @ SV279 @ ( not_homomorphism2 @ SV279 @ SV143 @ SV235 ) ) ) )
           != ( apply @ SV279 @ ( apply @ SV143 @ ( ordered_pair @ ( not_homomorphism1 @ SV279 @ SV143 @ SV235 ) @ ( not_homomorphism2 @ SV279 @ SV143 @ SV235 ) ) ) ) )
          | ( homomorphism @ SV279 @ SV143 @ SV235 ) )
        = $true )
      | ( ( operation @ SV143 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1024]) ).

thf(1064,plain,
    ! [SV298: $i,SV280: $i,SV236: $i,SV144: $i] :
      ( ( ( ( ordered_pair @ SV144 @ SV236 )
          = ( ordered_pair @ SV280 @ SV298 ) )
        = $false )
      | ( ( ~ ( member @ SV236 @ universal_class )
          | ( SV236 = SV298 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1025]) ).

thf(1065,plain,
    ! [SV239: $i,SV281: $i,SV147: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV147 @ SV281 ) @ ( cross_product @ universal_class @ universal_class ) ) )
        = $true )
      | ( ( SV147 = SV281 )
        = $true )
      | ( ( ( unordered_pair @ SV147 @ SV239 )
          = ( unordered_pair @ SV281 @ SV239 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1027]) ).

thf(1066,plain,
    ! [SV149: $i,SV1: $i,SV241: $i] :
      ( ( ( member @ SV241 @ SV1 )
        = $false )
      | ( ( member @ SV241 @ SV149 )
        = $true )
      | ( ( subclass @ SV1 @ SV149 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1029]) ).

thf(1067,plain,
    ! [SV160: $i,SV14: $i,SV284: $i,SV245: $i] :
      ( ( ( ~ ( member @ SV245 @ SV284 ) )
        = $true )
      | ( ( member @ ( ordered_pair @ SV14 @ SV245 ) @ ( cross_product @ SV160 @ SV284 ) )
        = $true )
      | ( ( member @ SV14 @ SV160 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1034]) ).

thf(1068,plain,
    ! [SV166: $i,SV249: $i,SV20: $i] :
      ( ( ( member @ SV20 @ SV249 )
        = $false )
      | ( ( member @ SV20 @ ( intersection @ SV166 @ SV249 ) )
        = $true )
      | ( ( member @ SV20 @ SV166 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1036]) ).

thf(1069,plain,
    ! [SV286: $i,SV175: $i,SV30: $i,SV253: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV253 @ SV30 ) @ SV175 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) ) )
        = $true )
      | ( ( member @ ( ordered_pair @ ( ordered_pair @ SV253 @ SV30 ) @ SV175 ) @ ( rotate @ SV286 ) )
        = $true )
      | ( ( member @ ( ordered_pair @ ( ordered_pair @ SV30 @ SV175 ) @ SV253 ) @ SV286 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1038]) ).

thf(1070,plain,
    ! [SV288: $i,SV255: $i,SV33: $i,SV177: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ ( ordered_pair @ SV177 @ SV33 ) @ SV255 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) ) )
        = $true )
      | ( ( member @ ( ordered_pair @ ( ordered_pair @ SV177 @ SV33 ) @ SV255 ) @ ( flip @ SV288 ) )
        = $true )
      | ( ( member @ ( ordered_pair @ ( ordered_pair @ SV33 @ SV177 ) @ SV255 ) @ SV288 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1040]) ).

thf(1071,plain,
    ! [SV259: $i,SV184: $i,SV51: $i,SV290: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV290 @ SV51 ) @ ( cross_product @ universal_class @ universal_class ) ) )
        = $true )
      | ( ( member @ ( ordered_pair @ SV290 @ SV51 ) @ ( compose @ SV184 @ SV259 ) )
        = $true )
      | ( ( member @ SV51 @ ( image @ SV184 @ ( image @ SV259 @ ( singleton @ SV290 ) ) ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1042]) ).

thf(1072,plain,
    ! [SV299: $i,SV291: $i,SV266: $i,SV193: $i,SV76: $i] :
      ( ( ( homomorphism @ SV76 @ SV193 @ SV266 )
        = $false )
      | ( ( ~ ( member @ ( ordered_pair @ SV291 @ SV299 ) @ ( domain_of @ SV193 ) )
          | ( ( apply @ SV266 @ ( ordered_pair @ ( apply @ SV76 @ SV291 ) @ ( apply @ SV76 @ SV299 ) ) )
            = ( apply @ SV76 @ ( apply @ SV193 @ ( ordered_pair @ SV291 @ SV299 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1044]) ).

thf(1073,plain,
    ! [SV77: $i,SV267: $i,SV194: $i] :
      ( ( ( operation @ SV194 )
        = $false )
      | ( ( ~ ( compatible @ SV267 @ SV77 @ SV194 )
          | ( member @ ( ordered_pair @ ( not_homomorphism1 @ SV267 @ SV77 @ SV194 ) @ ( not_homomorphism2 @ SV267 @ SV77 @ SV194 ) ) @ ( domain_of @ SV77 ) )
          | ( homomorphism @ SV267 @ SV77 @ SV194 ) )
        = $true )
      | ( ( operation @ SV77 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1045]) ).

thf(1074,plain,
    ! [SV83: $i,SV272: $i,SV199: $i] :
      ( ( ( subclass @ SV199 @ SV272 )
        = $false )
      | ( ( subclass @ SV83 @ SV272 )
        = $true )
      | ( ( subclass @ SV83 @ SV199 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1050]) ).

thf(1075,plain,
    ! [SV99: $i,SV211: $i,SV273: $i] :
      ( ( ( member @ SV273 @ SV211 )
        = $false )
      | ( ( subclass @ ( unordered_pair @ SV99 @ SV273 ) @ SV211 )
        = $true )
      | ( ( member @ SV99 @ SV211 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1052]) ).

thf(1076,plain,
    ! [SV296: $i,SV274: $i,SV225: $i,SV129: $i] :
      ( ( ( ( unordered_pair @ SV129 @ SV225 )
          = null_class )
        = $false )
      | ( ( member @ ( ordered_pair @ SV129 @ SV225 ) @ ( cross_product @ SV274 @ SV296 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1054]) ).

thf(1077,plain,
    ! [SV132: $i,SV275: $i,SV227: $i] :
      ( ( ( member @ ( ordered_pair @ SV227 @ SV275 ) @ ( cross_product @ universal_class @ universal_class ) )
        = $false )
      | ( ( SV227 = SV275 )
        = $true )
      | ( ( ( unordered_pair @ SV132 @ SV227 )
          = ( unordered_pair @ SV132 @ SV275 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1056]) ).

thf(1078,plain,
    ! [SV276: $i,SV133: $i,SV228: $i] :
      ( ( ( ( domain_of @ ( domain_of @ SV228 ) )
          = ( domain_of @ SV133 ) )
        = $false )
      | ( ( ~ ( subclass @ ( range_of @ SV133 ) @ ( domain_of @ ( domain_of @ SV276 ) ) )
          | ( compatible @ SV133 @ SV228 @ SV276 ) )
        = $true )
      | ( ( function @ SV133 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1057]) ).

thf(1079,plain,
    ! [SV136: $i] :
      ( ( ( subclass @ ( range_of @ SV136 ) @ ( domain_of @ ( domain_of @ SV136 ) ) )
        = $false )
      | ( ( operation @ SV136 )
        = $true )
      | ( ( ( cross_product @ ( domain_of @ ( domain_of @ SV136 ) ) @ ( domain_of @ ( domain_of @ SV136 ) ) )
          = ( domain_of @ SV136 ) )
        = $false )
      | ( ( function @ SV136 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1058]) ).

thf(1080,plain,
    ! [SV297: $i,SV232: $i,SV277: $i,SV138: $i] :
      ( ( ( ~ ( member @ SV138 @ universal_class ) )
        = $true )
      | ( ( SV138 = SV277 )
        = $true )
      | ( ( ( ordered_pair @ SV138 @ SV232 )
          = ( ordered_pair @ SV277 @ SV297 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1060]) ).

thf(1081,plain,
    ! [SV233: $i,SV139: $i,SV278: $i] :
      ( ( ( member @ SV278 @ universal_class )
        = $false )
      | ( ( ( SV278 = SV139 )
          | ( SV278 = SV233 ) )
        = $true )
      | ( ( ( unordered_pair @ SV139 @ SV233 )
          = ( singleton @ SV278 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1061]) ).

thf(1082,plain,
    ! [SV143: $i,SV279: $i,SV235: $i] :
      ( ( ( operation @ SV235 )
        = $false )
      | ( ( ~ ( compatible @ SV279 @ SV143 @ SV235 )
          | ( ( apply @ SV235 @ ( ordered_pair @ ( apply @ SV279 @ ( not_homomorphism1 @ SV279 @ SV143 @ SV235 ) ) @ ( apply @ SV279 @ ( not_homomorphism2 @ SV279 @ SV143 @ SV235 ) ) ) )
           != ( apply @ SV279 @ ( apply @ SV143 @ ( ordered_pair @ ( not_homomorphism1 @ SV279 @ SV143 @ SV235 ) @ ( not_homomorphism2 @ SV279 @ SV143 @ SV235 ) ) ) ) )
          | ( homomorphism @ SV279 @ SV143 @ SV235 ) )
        = $true )
      | ( ( operation @ SV143 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1063]) ).

thf(1083,plain,
    ! [SV280: $i,SV144: $i,SV298: $i,SV236: $i] :
      ( ( ( ~ ( member @ SV236 @ universal_class ) )
        = $true )
      | ( ( SV236 = SV298 )
        = $true )
      | ( ( ( ordered_pair @ SV144 @ SV236 )
          = ( ordered_pair @ SV280 @ SV298 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1064]) ).

thf(1084,plain,
    ! [SV239: $i,SV281: $i,SV147: $i] :
      ( ( ( member @ ( ordered_pair @ SV147 @ SV281 ) @ ( cross_product @ universal_class @ universal_class ) )
        = $false )
      | ( ( SV147 = SV281 )
        = $true )
      | ( ( ( unordered_pair @ SV147 @ SV239 )
          = ( unordered_pair @ SV281 @ SV239 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1065]) ).

thf(1085,plain,
    ! [SV160: $i,SV14: $i,SV284: $i,SV245: $i] :
      ( ( ( member @ SV245 @ SV284 )
        = $false )
      | ( ( member @ ( ordered_pair @ SV14 @ SV245 ) @ ( cross_product @ SV160 @ SV284 ) )
        = $true )
      | ( ( member @ SV14 @ SV160 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1067]) ).

thf(1086,plain,
    ! [SV286: $i,SV175: $i,SV30: $i,SV253: $i] :
      ( ( ( member @ ( ordered_pair @ ( ordered_pair @ SV253 @ SV30 ) @ SV175 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
        = $false )
      | ( ( member @ ( ordered_pair @ ( ordered_pair @ SV253 @ SV30 ) @ SV175 ) @ ( rotate @ SV286 ) )
        = $true )
      | ( ( member @ ( ordered_pair @ ( ordered_pair @ SV30 @ SV175 ) @ SV253 ) @ SV286 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1069]) ).

thf(1087,plain,
    ! [SV288: $i,SV255: $i,SV33: $i,SV177: $i] :
      ( ( ( member @ ( ordered_pair @ ( ordered_pair @ SV177 @ SV33 ) @ SV255 ) @ ( cross_product @ ( cross_product @ universal_class @ universal_class ) @ universal_class ) )
        = $false )
      | ( ( member @ ( ordered_pair @ ( ordered_pair @ SV177 @ SV33 ) @ SV255 ) @ ( flip @ SV288 ) )
        = $true )
      | ( ( member @ ( ordered_pair @ ( ordered_pair @ SV33 @ SV177 ) @ SV255 ) @ SV288 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1070]) ).

thf(1088,plain,
    ! [SV259: $i,SV184: $i,SV51: $i,SV290: $i] :
      ( ( ( member @ ( ordered_pair @ SV290 @ SV51 ) @ ( cross_product @ universal_class @ universal_class ) )
        = $false )
      | ( ( member @ ( ordered_pair @ SV290 @ SV51 ) @ ( compose @ SV184 @ SV259 ) )
        = $true )
      | ( ( member @ SV51 @ ( image @ SV184 @ ( image @ SV259 @ ( singleton @ SV290 ) ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1071]) ).

thf(1089,plain,
    ! [SV76: $i,SV266: $i,SV193: $i,SV299: $i,SV291: $i] :
      ( ( ( ~ ( member @ ( ordered_pair @ SV291 @ SV299 ) @ ( domain_of @ SV193 ) ) )
        = $true )
      | ( ( ( apply @ SV266 @ ( ordered_pair @ ( apply @ SV76 @ SV291 ) @ ( apply @ SV76 @ SV299 ) ) )
          = ( apply @ SV76 @ ( apply @ SV193 @ ( ordered_pair @ SV291 @ SV299 ) ) ) )
        = $true )
      | ( ( homomorphism @ SV76 @ SV193 @ SV266 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1072]) ).

thf(1090,plain,
    ! [SV194: $i,SV77: $i,SV267: $i] :
      ( ( ( ~ ( compatible @ SV267 @ SV77 @ SV194 ) )
        = $true )
      | ( ( ( member @ ( ordered_pair @ ( not_homomorphism1 @ SV267 @ SV77 @ SV194 ) @ ( not_homomorphism2 @ SV267 @ SV77 @ SV194 ) ) @ ( domain_of @ SV77 ) )
          | ( homomorphism @ SV267 @ SV77 @ SV194 ) )
        = $true )
      | ( ( operation @ SV194 )
        = $false )
      | ( ( operation @ SV77 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1073]) ).

thf(1091,plain,
    ! [SV228: $i,SV276: $i,SV133: $i] :
      ( ( ( ~ ( subclass @ ( range_of @ SV133 ) @ ( domain_of @ ( domain_of @ SV276 ) ) ) )
        = $true )
      | ( ( compatible @ SV133 @ SV228 @ SV276 )
        = $true )
      | ( ( ( domain_of @ ( domain_of @ SV228 ) )
          = ( domain_of @ SV133 ) )
        = $false )
      | ( ( function @ SV133 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1078]) ).

thf(1092,plain,
    ! [SV297: $i,SV232: $i,SV277: $i,SV138: $i] :
      ( ( ( member @ SV138 @ universal_class )
        = $false )
      | ( ( SV138 = SV277 )
        = $true )
      | ( ( ( ordered_pair @ SV138 @ SV232 )
          = ( ordered_pair @ SV277 @ SV297 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1080]) ).

thf(1093,plain,
    ! [SV233: $i,SV139: $i,SV278: $i] :
      ( ( ( SV278 = SV139 )
        = $true )
      | ( ( SV278 = SV233 )
        = $true )
      | ( ( member @ SV278 @ universal_class )
        = $false )
      | ( ( ( unordered_pair @ SV139 @ SV233 )
          = ( singleton @ SV278 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1081]) ).

thf(1094,plain,
    ! [SV235: $i,SV143: $i,SV279: $i] :
      ( ( ( ~ ( compatible @ SV279 @ SV143 @ SV235 ) )
        = $true )
      | ( ( ( ( apply @ SV235 @ ( ordered_pair @ ( apply @ SV279 @ ( not_homomorphism1 @ SV279 @ SV143 @ SV235 ) ) @ ( apply @ SV279 @ ( not_homomorphism2 @ SV279 @ SV143 @ SV235 ) ) ) )
           != ( apply @ SV279 @ ( apply @ SV143 @ ( ordered_pair @ ( not_homomorphism1 @ SV279 @ SV143 @ SV235 ) @ ( not_homomorphism2 @ SV279 @ SV143 @ SV235 ) ) ) ) )
          | ( homomorphism @ SV279 @ SV143 @ SV235 ) )
        = $true )
      | ( ( operation @ SV235 )
        = $false )
      | ( ( operation @ SV143 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1082]) ).

thf(1095,plain,
    ! [SV280: $i,SV144: $i,SV298: $i,SV236: $i] :
      ( ( ( member @ SV236 @ universal_class )
        = $false )
      | ( ( SV236 = SV298 )
        = $true )
      | ( ( ( ordered_pair @ SV144 @ SV236 )
          = ( ordered_pair @ SV280 @ SV298 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1083]) ).

thf(1096,plain,
    ! [SV76: $i,SV266: $i,SV193: $i,SV299: $i,SV291: $i] :
      ( ( ( member @ ( ordered_pair @ SV291 @ SV299 ) @ ( domain_of @ SV193 ) )
        = $false )
      | ( ( ( apply @ SV266 @ ( ordered_pair @ ( apply @ SV76 @ SV291 ) @ ( apply @ SV76 @ SV299 ) ) )
          = ( apply @ SV76 @ ( apply @ SV193 @ ( ordered_pair @ SV291 @ SV299 ) ) ) )
        = $true )
      | ( ( homomorphism @ SV76 @ SV193 @ SV266 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1089]) ).

thf(1097,plain,
    ! [SV194: $i,SV77: $i,SV267: $i] :
      ( ( ( compatible @ SV267 @ SV77 @ SV194 )
        = $false )
      | ( ( ( member @ ( ordered_pair @ ( not_homomorphism1 @ SV267 @ SV77 @ SV194 ) @ ( not_homomorphism2 @ SV267 @ SV77 @ SV194 ) ) @ ( domain_of @ SV77 ) )
          | ( homomorphism @ SV267 @ SV77 @ SV194 ) )
        = $true )
      | ( ( operation @ SV194 )
        = $false )
      | ( ( operation @ SV77 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1090]) ).

thf(1098,plain,
    ! [SV228: $i,SV276: $i,SV133: $i] :
      ( ( ( subclass @ ( range_of @ SV133 ) @ ( domain_of @ ( domain_of @ SV276 ) ) )
        = $false )
      | ( ( compatible @ SV133 @ SV228 @ SV276 )
        = $true )
      | ( ( ( domain_of @ ( domain_of @ SV228 ) )
          = ( domain_of @ SV133 ) )
        = $false )
      | ( ( function @ SV133 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1091]) ).

thf(1099,plain,
    ! [SV235: $i,SV143: $i,SV279: $i] :
      ( ( ( compatible @ SV279 @ SV143 @ SV235 )
        = $false )
      | ( ( ( ( apply @ SV235 @ ( ordered_pair @ ( apply @ SV279 @ ( not_homomorphism1 @ SV279 @ SV143 @ SV235 ) ) @ ( apply @ SV279 @ ( not_homomorphism2 @ SV279 @ SV143 @ SV235 ) ) ) )
           != ( apply @ SV279 @ ( apply @ SV143 @ ( ordered_pair @ ( not_homomorphism1 @ SV279 @ SV143 @ SV235 ) @ ( not_homomorphism2 @ SV279 @ SV143 @ SV235 ) ) ) ) )
          | ( homomorphism @ SV279 @ SV143 @ SV235 ) )
        = $true )
      | ( ( operation @ SV235 )
        = $false )
      | ( ( operation @ SV143 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1094]) ).

thf(1100,plain,
    ! [SV194: $i,SV77: $i,SV267: $i] :
      ( ( ( member @ ( ordered_pair @ ( not_homomorphism1 @ SV267 @ SV77 @ SV194 ) @ ( not_homomorphism2 @ SV267 @ SV77 @ SV194 ) ) @ ( domain_of @ SV77 ) )
        = $true )
      | ( ( homomorphism @ SV267 @ SV77 @ SV194 )
        = $true )
      | ( ( compatible @ SV267 @ SV77 @ SV194 )
        = $false )
      | ( ( operation @ SV194 )
        = $false )
      | ( ( operation @ SV77 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1097]) ).

thf(1101,plain,
    ! [SV143: $i,SV279: $i,SV235: $i] :
      ( ( ( ( apply @ SV235 @ ( ordered_pair @ ( apply @ SV279 @ ( not_homomorphism1 @ SV279 @ SV143 @ SV235 ) ) @ ( apply @ SV279 @ ( not_homomorphism2 @ SV279 @ SV143 @ SV235 ) ) ) )
         != ( apply @ SV279 @ ( apply @ SV143 @ ( ordered_pair @ ( not_homomorphism1 @ SV279 @ SV143 @ SV235 ) @ ( not_homomorphism2 @ SV279 @ SV143 @ SV235 ) ) ) ) )
        = $true )
      | ( ( homomorphism @ SV279 @ SV143 @ SV235 )
        = $true )
      | ( ( compatible @ SV279 @ SV143 @ SV235 )
        = $false )
      | ( ( operation @ SV235 )
        = $false )
      | ( ( operation @ SV143 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1099]) ).

thf(1102,plain,
    ! [SV143: $i,SV279: $i,SV235: $i] :
      ( ( ( ( apply @ SV235 @ ( ordered_pair @ ( apply @ SV279 @ ( not_homomorphism1 @ SV279 @ SV143 @ SV235 ) ) @ ( apply @ SV279 @ ( not_homomorphism2 @ SV279 @ SV143 @ SV235 ) ) ) )
          = ( apply @ SV279 @ ( apply @ SV143 @ ( ordered_pair @ ( not_homomorphism1 @ SV279 @ SV143 @ SV235 ) @ ( not_homomorphism2 @ SV279 @ SV143 @ SV235 ) ) ) ) )
        = $false )
      | ( ( homomorphism @ SV279 @ SV143 @ SV235 )
        = $true )
      | ( ( compatible @ SV279 @ SV143 @ SV235 )
        = $false )
      | ( ( operation @ SV235 )
        = $false )
      | ( ( operation @ SV143 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1101]) ).

thf(1103,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[323,1102,1100,1098,1096,1095,1093,1092,1088,1087,1086,1085,1084,1079,1077,1076,1075,1074,1068,1066,1062,1059,1055,1053,1051,1049,1048,1047,1046,1043,1041,1039,1037,1035,1033,1032,1031,1030,1028,1026,1018,1012,1011,1008,1007,999,998,997,996,995,994,993,991,988,983,982,981,979,978,976,967,963,956,953,949,948,945,944,942,938,923,917,905,900,899,896,888,870,869,868,865,864,863,861,858,857,856,855,837,836,835,833,832,828,827,826,825,822,821,820,818,817,815,814,808,807,790,767,766,765,764,759,758,757,756,751,750,748,747,744,741,736,735,734,733,731,705,704,703,694,686,676,675,663,662,647,632,604,594,586,570,569,551,549,543,539,538,535,532,514,508,448,431,399,398,393,376,374,368,342]) ).

thf(1104,plain,
    $false,
    inference(solved_all_splits,[solved_all_splits(join,[])],[1103]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02  % Problem  : SET020-7 : TPTP v9.3.1. Bugfixed v2.1.0.
% 0.00/0.03  % Command  : leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.09/0.14  % Computer : n002.cluster.edu
% 0.09/0.14  % Model    : x86_64 x86_64
% 0.09/0.14  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.14  % Memory   : 8046.5625MB
% 0.09/0.14  % OS       : Linux 6.8.0-71-generic
% 0.09/0.14  % CPULimit : 300
% 0.09/0.14  % WCLimit  : 300
% 0.09/0.14  % DateTime : Tue Oct  6 14:29:27 UTC 2026
% 0.09/0.14  % CPUTime  : 
% 0.09/0.15  Running leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p
% 145.95/24.87  .
% 145.95/24.87  
% 145.95/24.87   No.of.Axioms: 159
% 145.95/24.87  
% 145.95/24.87   Length.of.Defs: 0
% 145.95/24.87  
% 145.95/24.87   Contains.Choice.Funs: false
% 145.95/24.87  ...........................
% 145.95/24.87  
% 145.95/24.87  ********************************
% 145.95/24.87  *   All subproblems solved!    *
% 145.95/24.87  ********************************
% 145.95/24.87  % SZS status Unsatisfiable for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:1,axioms:159,ps:0,u:6,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:false,expand_extuni:false,foatp:e,atp_timeout:299,atp_calls_frequency:5,ordering:none,proof_output:1,protocol_output:false,clause_count:1103,loop_count:0,foatp_calls:1,translation:fof_full)
% 145.95/24.87  
% 145.95/24.87  %**** Beginning of derivation protocol ****
% 145.95/24.87  % SZS output start CNFRefutation
% See solution above
% 145.95/24.88  
% 145.95/24.88  %**** End of derivation protocol ****
% 145.95/24.88  %**** no. of clauses in derivation: 1104 ****
% 145.95/24.88  %**** clause counter: 1103 ****
% 145.95/24.88  
% 145.95/24.88  % SZS status Unsatisfiable for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:1,axioms:159,ps:0,u:6,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:false,expand_extuni:false,foatp:e,atp_timeout:299,atp_calls_frequency:5,ordering:none,proof_output:1,protocol_output:false,clause_count:1103,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------