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

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%------------------------------------------------------------------------------
% File     : LEO-II---2.3.1
% Problem  : SEU267+2 : TPTP v9.3.1. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p

% Computer : n015.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8046.5625MB
% OS       : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Wed Oct  7 10:43:44 AM UTC 2026

% Result   : Theorem 1.12s 0.56s
% Output   : CNFRefutation 1.12s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   24
%            Number of leaves      :   29
% Syntax   : Number of formulae    :  274 ( 148 unt;   0 typ;   0 def)
%            Number of atoms       : 1683 (1148 equ;   0 cnn)
%            Maximal formula atoms :    4 (   6 avg)
%            Number of connectives : 2271 ( 610   ~; 520   |;   9   &;1104   @)
%                                         (   8 <=>;  20  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   10 (   4 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   81 (  78 usr;   5 con; 0-4 aty)
%            Number of variables   :  943 (   0   ^; 927   !;  16   ?; 943   :)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

thf(tp_pair_first,type,
    pair_first: $i > $i ).

thf(tp_pair_second,type,
    pair_second: $i > $i ).

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

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

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

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

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

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

thf(tp_relation_dom_as_subset,type,
    relation_dom_as_subset: $i > $i > $i > $i ).

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

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

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

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

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

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

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

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

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

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

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

thf(tp_relation_rng_as_subset,type,
    relation_rng_as_subset: $i > $i > $i > $i ).

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

thf(tp_sK10_SY90,type,
    sK10_SY90: $i > $i > $i > $i > $i ).

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

thf(tp_sK2_SY20,type,
    sK2_SY20: $i ).

thf(tp_sK3_SY46,type,
    sK3_SY46: $i > $i > $i > $i > $i ).

thf(tp_sK4_SY50,type,
    sK4_SY50: $i > $i > $i > $i > $i ).

thf(tp_sK5_SY53,type,
    sK5_SY53: $i > $i > $i > $i > $i ).

thf(tp_sK6_SY55,type,
    sK6_SY55: $i > $i > $i > $i > $i ).

thf(tp_sK7_SY81,type,
    sK7_SY81: $i > $i > $i > $i > $i ).

thf(tp_sK8_SY85,type,
    sK8_SY85: $i > $i > $i > $i > $i ).

thf(tp_sK9_SY88,type,
    sK9_SY88: $i > $i > $i > $i > $i ).

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

thf(66,axiom,
    ! [A: $i,B: $i] :
      ~ ( empty @ ( ordered_pair @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc1_zfmisc_1) ).

thf(80,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_m1_subset_1) ).

thf(81,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_m1_relset_1) ).

thf(82,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k9_relat_1) ).

thf(92,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k4_xboole_0) ).

thf(93,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k4_tarski) ).

thf(96,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k3_xboole_0) ).

thf(97,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k3_tarski) ).

thf(99,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k3_relat_1) ).

thf(100,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k2_zfmisc_1) ).

thf(101,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k2_xboole_0) ).

thf(103,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k2_tarski) ).

thf(105,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k2_relat_1) ).

thf(106,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k2_mcart_1) ).

thf(108,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_zfmisc_1) ).

thf(109,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_xboole_0) ).

thf(110,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_wellord1) ).

thf(111,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_tarski) ).

thf(112,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_setfam_1) ).

thf(113,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_relat_1) ).

thf(114,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_ordinal1) ).

thf(115,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_mcart_1) ).

thf(116,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_funct_1) ).

thf(117,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_enumset1) ).

thf(118,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k10_relat_1) ).

thf(158,axiom,
    ! [A: $i] :
      ( ? [B: $i,C: $i] :
          ( A
          = ( ordered_pair @ B @ C ) )
     => ! [B: $i] :
          ( ( B
            = ( pair_second @ A ) )
        <=> ! [C: $i,D: $i] :
              ( ( A
                = ( ordered_pair @ C @ D ) )
             => ( B = D ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d2_mcart_1) ).

thf(168,axiom,
    ! [A: $i] :
      ( ? [B: $i,C: $i] :
          ( A
          = ( ordered_pair @ B @ C ) )
     => ! [B: $i] :
          ( ( B
            = ( pair_first @ A ) )
        <=> ! [C: $i,D: $i] :
              ( ( A
                = ( ordered_pair @ C @ D ) )
             => ( B = C ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_mcart_1) ).

thf(260,axiom,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( ( ordered_pair @ A @ B )
        = ( ordered_pair @ C @ D ) )
     => ( ( A = C )
        & ( B = D ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t33_zfmisc_1) ).

thf(342,conjecture,
    ! [A: $i,B: $i] :
      ( ( ( pair_first @ ( ordered_pair @ A @ B ) )
        = A )
      & ( ( pair_second @ ( ordered_pair @ A @ B ) )
        = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t7_mcart_1) ).

thf(343,negated_conjecture,
    ( ( ! [A: $i,B: $i] :
          ( ( ( pair_first @ ( ordered_pair @ A @ B ) )
            = A )
          & ( ( pair_second @ ( ordered_pair @ A @ B ) )
            = B ) ) )
    = $false ),
    inference(negate_conjecture,[status(cth)],[342]) ).

thf(344,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( pair_first @ ( ordered_pair @ A @ B ) )
            = A )
          & ( ( pair_second @ ( ordered_pair @ A @ B ) )
            = B ) ) )
    = $false ),
    inference(unfold_def,[status(thm)],[343]) ).

thf(345,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( ordered_pair @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[66]) ).

thf(346,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[80]) ).

thf(347,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[81]) ).

thf(348,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[82]) ).

thf(349,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[92]) ).

thf(350,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[93]) ).

thf(351,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[96]) ).

thf(352,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[97]) ).

thf(353,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[99]) ).

thf(354,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[100]) ).

thf(355,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[101]) ).

thf(356,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[103]) ).

thf(357,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[105]) ).

thf(358,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[106]) ).

thf(359,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[108]) ).

thf(360,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[109]) ).

thf(361,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[110]) ).

thf(362,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[111]) ).

thf(363,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[112]) ).

thf(364,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[113]) ).

thf(365,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[114]) ).

thf(366,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[115]) ).

thf(367,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[116]) ).

thf(368,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[117]) ).

thf(369,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[118]) ).

thf(370,plain,
    ( ( ! [A: $i] :
          ( ? [B: $i,C: $i] :
              ( A
              = ( ordered_pair @ B @ C ) )
         => ! [B: $i] :
              ( ( B
                = ( pair_second @ A ) )
            <=> ! [C: $i,D: $i] :
                  ( ( A
                    = ( ordered_pair @ C @ D ) )
                 => ( B = D ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[158]) ).

thf(371,plain,
    ( ( ! [A: $i] :
          ( ? [B: $i,C: $i] :
              ( A
              = ( ordered_pair @ B @ C ) )
         => ! [B: $i] :
              ( ( B
                = ( pair_first @ A ) )
            <=> ! [C: $i,D: $i] :
                  ( ( A
                    = ( ordered_pair @ C @ D ) )
                 => ( B = C ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[168]) ).

thf(372,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( ( ordered_pair @ A @ B )
            = ( ordered_pair @ C @ D ) )
         => ( ( A = C )
            & ( B = D ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[260]) ).

thf(373,plain,
    ( ( ! [SY20: $i] :
          ( ( ( pair_first @ ( ordered_pair @ sK1_A @ SY20 ) )
            = sK1_A )
          & ( ( pair_second @ ( ordered_pair @ sK1_A @ SY20 ) )
            = SY20 ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[344]) ).

thf(374,plain,
    ( ( ( ( pair_first @ ( ordered_pair @ sK1_A @ sK2_SY20 ) )
        = sK1_A )
      & ( ( pair_second @ ( ordered_pair @ sK1_A @ sK2_SY20 ) )
        = sK2_SY20 ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[373]) ).

thf(375,plain,
    ( ( ( pair_first @ ( ordered_pair @ sK1_A @ sK2_SY20 ) )
      = sK1_A )
    = $false ),
    inference(split_conjecture,[split_conjecture(split,[])],[374]) ).

thf(376,plain,
    ( ( ( pair_second @ ( ordered_pair @ sK1_A @ sK2_SY20 ) )
      = sK2_SY20 )
    = $false ),
    inference(split_conjecture,[split_conjecture(split,[])],[374]) ).

thf(377,plain,
    ( ( ( pair_first @ ( ordered_pair @ sK1_A @ sK2_SY20 ) )
     != sK1_A )
    = $true ),
    inference(polarity_switch,[status(thm)],[375]) ).

thf(378,plain,
    ( ( ( pair_second @ ( ordered_pair @ sK1_A @ sK2_SY20 ) )
     != sK2_SY20 )
    = $true ),
    inference(polarity_switch,[status(thm)],[376]) ).

thf(379,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( ( ordered_pair @ A @ B )
            = ( ordered_pair @ C @ D ) )
         => ( ( A = C )
            & ( B = D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[372]) ).

thf(380,plain,
    ( ( ! [A: $i] :
          ( ? [B: $i,C: $i] :
              ( A
              = ( ordered_pair @ B @ C ) )
         => ! [B: $i] :
              ( ( B
                = ( pair_first @ A ) )
            <=> ! [C: $i,D: $i] :
                  ( ( A
                    = ( ordered_pair @ C @ D ) )
                 => ( B = C ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[371]) ).

thf(381,plain,
    ( ( ! [A: $i] :
          ( ? [B: $i,C: $i] :
              ( A
              = ( ordered_pair @ B @ C ) )
         => ! [B: $i] :
              ( ( B
                = ( pair_second @ A ) )
            <=> ! [C: $i,D: $i] :
                  ( ( A
                    = ( ordered_pair @ C @ D ) )
                 => ( B = D ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[370]) ).

thf(382,plain,
    $true = $true,
    inference(copy,[status(thm)],[369]) ).

thf(383,plain,
    $true = $true,
    inference(copy,[status(thm)],[368]) ).

thf(384,plain,
    $true = $true,
    inference(copy,[status(thm)],[367]) ).

thf(385,plain,
    $true = $true,
    inference(copy,[status(thm)],[366]) ).

thf(386,plain,
    $true = $true,
    inference(copy,[status(thm)],[365]) ).

thf(387,plain,
    $true = $true,
    inference(copy,[status(thm)],[364]) ).

thf(388,plain,
    $true = $true,
    inference(copy,[status(thm)],[363]) ).

thf(389,plain,
    $true = $true,
    inference(copy,[status(thm)],[362]) ).

thf(390,plain,
    $true = $true,
    inference(copy,[status(thm)],[361]) ).

thf(391,plain,
    $true = $true,
    inference(copy,[status(thm)],[360]) ).

thf(392,plain,
    $true = $true,
    inference(copy,[status(thm)],[359]) ).

thf(393,plain,
    $true = $true,
    inference(copy,[status(thm)],[358]) ).

thf(394,plain,
    $true = $true,
    inference(copy,[status(thm)],[357]) ).

thf(395,plain,
    $true = $true,
    inference(copy,[status(thm)],[356]) ).

thf(396,plain,
    $true = $true,
    inference(copy,[status(thm)],[355]) ).

thf(397,plain,
    $true = $true,
    inference(copy,[status(thm)],[354]) ).

thf(398,plain,
    $true = $true,
    inference(copy,[status(thm)],[353]) ).

thf(399,plain,
    $true = $true,
    inference(copy,[status(thm)],[352]) ).

thf(400,plain,
    $true = $true,
    inference(copy,[status(thm)],[351]) ).

thf(401,plain,
    $true = $true,
    inference(copy,[status(thm)],[350]) ).

thf(402,plain,
    $true = $true,
    inference(copy,[status(thm)],[349]) ).

thf(403,plain,
    $true = $true,
    inference(copy,[status(thm)],[348]) ).

thf(404,plain,
    $true = $true,
    inference(copy,[status(thm)],[347]) ).

thf(405,plain,
    $true = $true,
    inference(copy,[status(thm)],[346]) ).

thf(406,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( ordered_pair @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[345]) ).

thf(407,plain,
    ( ( ( pair_first @ ( ordered_pair @ sK1_A @ sK2_SY20 ) )
     != sK1_A )
    = $true ),
    inference(copy,[status(thm)],[377]) ).

thf(408,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i,SX3: $i] :
          ( ( ( ordered_pair @ SX0 @ SX1 )
           != ( ordered_pair @ SX2 @ SX3 ) )
          | ~ ( ( SX0 != SX2 )
              | ( SX1 != SX3 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[379]) ).

thf(409,plain,
    ( ( ! [SX0: $i] :
          ( ~ ~ ! [SX1: $i] :
                  ~ ~ ! [SX2: $i] :
                        ( SX0
                       != ( ordered_pair @ SX1 @ SX2 ) )
          | ! [SX1: $i] :
              ~ ( ~ ( ( SX1
                     != ( pair_first @ SX0 ) )
                    | ! [SX2: $i,SX3: $i] :
                        ( ( SX0
                         != ( ordered_pair @ SX2 @ SX3 ) )
                        | ( SX1 = SX2 ) ) )
                | ~ ( ~ ! [SX2: $i,SX3: $i] :
                          ( ( SX0
                           != ( ordered_pair @ SX2 @ SX3 ) )
                          | ( SX1 = SX2 ) )
                    | ( SX1
                      = ( pair_first @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[380]) ).

thf(410,plain,
    ( ( ! [SX0: $i] :
          ( ~ ~ ! [SX1: $i] :
                  ~ ~ ! [SX2: $i] :
                        ( SX0
                       != ( ordered_pair @ SX1 @ SX2 ) )
          | ! [SX1: $i] :
              ~ ( ~ ( ( SX1
                     != ( pair_second @ SX0 ) )
                    | ! [SX2: $i,SX3: $i] :
                        ( ( SX0
                         != ( ordered_pair @ SX2 @ SX3 ) )
                        | ( SX1 = SX3 ) ) )
                | ~ ( ~ ! [SX2: $i,SX3: $i] :
                          ( ( SX0
                           != ( ordered_pair @ SX2 @ SX3 ) )
                          | ( SX1 = SX3 ) )
                    | ( SX1
                      = ( pair_second @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[381]) ).

thf(411,plain,
    ! [SV1: $i] :
      ( ( ! [SY21: $i] :
            ~ ( empty @ ( ordered_pair @ SV1 @ SY21 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[406]) ).

thf(412,plain,
    ( ( ( pair_first @ ( ordered_pair @ sK1_A @ sK2_SY20 ) )
      = sK1_A )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[407]) ).

thf(413,plain,
    ! [SV2: $i] :
      ( ( ! [SY22: $i,SY23: $i,SY24: $i] :
            ( ( ( ordered_pair @ SV2 @ SY22 )
             != ( ordered_pair @ SY23 @ SY24 ) )
            | ~ ( ( SV2 != SY23 )
                | ( SY22 != SY24 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[408]) ).

thf(414,plain,
    ! [SV3: $i] :
      ( ( ~ ~ ! [SY25: $i] :
                ~ ~ ! [SY26: $i] :
                      ( SV3
                     != ( ordered_pair @ SY25 @ SY26 ) )
        | ! [SY27: $i] :
            ~ ( ~ ( ( SY27
                   != ( pair_first @ SV3 ) )
                  | ! [SY28: $i,SY29: $i] :
                      ( ( SV3
                       != ( ordered_pair @ SY28 @ SY29 ) )
                      | ( SY27 = SY28 ) ) )
              | ~ ( ~ ! [SY30: $i,SY31: $i] :
                        ( ( SV3
                         != ( ordered_pair @ SY30 @ SY31 ) )
                        | ( SY27 = SY30 ) )
                  | ( SY27
                    = ( pair_first @ SV3 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[409]) ).

thf(415,plain,
    ! [SV4: $i] :
      ( ( ~ ~ ! [SY32: $i] :
                ~ ~ ! [SY33: $i] :
                      ( SV4
                     != ( ordered_pair @ SY32 @ SY33 ) )
        | ! [SY34: $i] :
            ~ ( ~ ( ( SY34
                   != ( pair_second @ SV4 ) )
                  | ! [SY35: $i,SY36: $i] :
                      ( ( SV4
                       != ( ordered_pair @ SY35 @ SY36 ) )
                      | ( SY34 = SY36 ) ) )
              | ~ ( ~ ! [SY37: $i,SY38: $i] :
                        ( ( SV4
                         != ( ordered_pair @ SY37 @ SY38 ) )
                        | ( SY34 = SY38 ) )
                  | ( SY34
                    = ( pair_second @ SV4 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[410]) ).

thf(416,plain,
    ! [SV5: $i,SV1: $i] :
      ( ( ~ ( empty @ ( ordered_pair @ SV1 @ SV5 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[411]) ).

thf(417,plain,
    ! [SV6: $i,SV2: $i] :
      ( ( ! [SY39: $i,SY40: $i] :
            ( ( ( ordered_pair @ SV2 @ SV6 )
             != ( ordered_pair @ SY39 @ SY40 ) )
            | ~ ( ( SV2 != SY39 )
                | ( SV6 != SY40 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[413]) ).

thf(418,plain,
    ! [SV3: $i] :
      ( ( ( ~ ~ ! [SY25: $i] :
                  ~ ~ ! [SY26: $i] :
                        ( SV3
                       != ( ordered_pair @ SY25 @ SY26 ) ) )
        = $true )
      | ( ( ! [SY27: $i] :
              ~ ( ~ ( ( SY27
                     != ( pair_first @ SV3 ) )
                    | ! [SY28: $i,SY29: $i] :
                        ( ( SV3
                         != ( ordered_pair @ SY28 @ SY29 ) )
                        | ( SY27 = SY28 ) ) )
                | ~ ( ~ ! [SY30: $i,SY31: $i] :
                          ( ( SV3
                           != ( ordered_pair @ SY30 @ SY31 ) )
                          | ( SY27 = SY30 ) )
                    | ( SY27
                      = ( pair_first @ SV3 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[414]) ).

thf(419,plain,
    ! [SV4: $i] :
      ( ( ( ~ ~ ! [SY32: $i] :
                  ~ ~ ! [SY33: $i] :
                        ( SV4
                       != ( ordered_pair @ SY32 @ SY33 ) ) )
        = $true )
      | ( ( ! [SY34: $i] :
              ~ ( ~ ( ( SY34
                     != ( pair_second @ SV4 ) )
                    | ! [SY35: $i,SY36: $i] :
                        ( ( SV4
                         != ( ordered_pair @ SY35 @ SY36 ) )
                        | ( SY34 = SY36 ) ) )
                | ~ ( ~ ! [SY37: $i,SY38: $i] :
                          ( ( SV4
                           != ( ordered_pair @ SY37 @ SY38 ) )
                          | ( SY34 = SY38 ) )
                    | ( SY34
                      = ( pair_second @ SV4 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[415]) ).

thf(420,plain,
    ! [SV5: $i,SV1: $i] :
      ( ( empty @ ( ordered_pair @ SV1 @ SV5 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[416]) ).

thf(421,plain,
    ! [SV7: $i,SV6: $i,SV2: $i] :
      ( ( ! [SY41: $i] :
            ( ( ( ordered_pair @ SV2 @ SV6 )
             != ( ordered_pair @ SV7 @ SY41 ) )
            | ~ ( ( SV2 != SV7 )
                | ( SV6 != SY41 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[417]) ).

thf(422,plain,
    ! [SV3: $i] :
      ( ( ( ~ ! [SY25: $i] :
                ~ ~ ! [SY26: $i] :
                      ( SV3
                     != ( ordered_pair @ SY25 @ SY26 ) ) )
        = $false )
      | ( ( ! [SY27: $i] :
              ~ ( ~ ( ( SY27
                     != ( pair_first @ SV3 ) )
                    | ! [SY28: $i,SY29: $i] :
                        ( ( SV3
                         != ( ordered_pair @ SY28 @ SY29 ) )
                        | ( SY27 = SY28 ) ) )
                | ~ ( ~ ! [SY30: $i,SY31: $i] :
                          ( ( SV3
                           != ( ordered_pair @ SY30 @ SY31 ) )
                          | ( SY27 = SY30 ) )
                    | ( SY27
                      = ( pair_first @ SV3 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[418]) ).

thf(423,plain,
    ! [SV4: $i] :
      ( ( ( ~ ! [SY32: $i] :
                ~ ~ ! [SY33: $i] :
                      ( SV4
                     != ( ordered_pair @ SY32 @ SY33 ) ) )
        = $false )
      | ( ( ! [SY34: $i] :
              ~ ( ~ ( ( SY34
                     != ( pair_second @ SV4 ) )
                    | ! [SY35: $i,SY36: $i] :
                        ( ( SV4
                         != ( ordered_pair @ SY35 @ SY36 ) )
                        | ( SY34 = SY36 ) ) )
                | ~ ( ~ ! [SY37: $i,SY38: $i] :
                          ( ( SV4
                           != ( ordered_pair @ SY37 @ SY38 ) )
                          | ( SY34 = SY38 ) )
                    | ( SY34
                      = ( pair_second @ SV4 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[419]) ).

thf(424,plain,
    ! [SV8: $i,SV7: $i,SV6: $i,SV2: $i] :
      ( ( ( ( ordered_pair @ SV2 @ SV6 )
         != ( ordered_pair @ SV7 @ SV8 ) )
        | ~ ( ( SV2 != SV7 )
            | ( SV6 != SV8 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[421]) ).

thf(425,plain,
    ! [SV3: $i] :
      ( ( ( ! [SY25: $i] :
              ~ ~ ! [SY26: $i] :
                    ( SV3
                   != ( ordered_pair @ SY25 @ SY26 ) ) )
        = $true )
      | ( ( ! [SY27: $i] :
              ~ ( ~ ( ( SY27
                     != ( pair_first @ SV3 ) )
                    | ! [SY28: $i,SY29: $i] :
                        ( ( SV3
                         != ( ordered_pair @ SY28 @ SY29 ) )
                        | ( SY27 = SY28 ) ) )
                | ~ ( ~ ! [SY30: $i,SY31: $i] :
                          ( ( SV3
                           != ( ordered_pair @ SY30 @ SY31 ) )
                          | ( SY27 = SY30 ) )
                    | ( SY27
                      = ( pair_first @ SV3 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[422]) ).

thf(426,plain,
    ! [SV4: $i] :
      ( ( ( ! [SY32: $i] :
              ~ ~ ! [SY33: $i] :
                    ( SV4
                   != ( ordered_pair @ SY32 @ SY33 ) ) )
        = $true )
      | ( ( ! [SY34: $i] :
              ~ ( ~ ( ( SY34
                     != ( pair_second @ SV4 ) )
                    | ! [SY35: $i,SY36: $i] :
                        ( ( SV4
                         != ( ordered_pair @ SY35 @ SY36 ) )
                        | ( SY34 = SY36 ) ) )
                | ~ ( ~ ! [SY37: $i,SY38: $i] :
                          ( ( SV4
                           != ( ordered_pair @ SY37 @ SY38 ) )
                          | ( SY34 = SY38 ) )
                    | ( SY34
                      = ( pair_second @ SV4 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[423]) ).

thf(427,plain,
    ! [SV8: $i,SV7: $i,SV6: $i,SV2: $i] :
      ( ( ( ( ordered_pair @ SV2 @ SV6 )
         != ( ordered_pair @ SV7 @ SV8 ) )
        = $true )
      | ( ( ~ ( ( SV2 != SV7 )
              | ( SV6 != SV8 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[424]) ).

thf(428,plain,
    ! [SV9: $i,SV3: $i] :
      ( ( ( ~ ~ ! [SY42: $i] :
                  ( SV3
                 != ( ordered_pair @ SV9 @ SY42 ) ) )
        = $true )
      | ( ( ! [SY27: $i] :
              ~ ( ~ ( ( SY27
                     != ( pair_first @ SV3 ) )
                    | ! [SY28: $i,SY29: $i] :
                        ( ( SV3
                         != ( ordered_pair @ SY28 @ SY29 ) )
                        | ( SY27 = SY28 ) ) )
                | ~ ( ~ ! [SY30: $i,SY31: $i] :
                          ( ( SV3
                           != ( ordered_pair @ SY30 @ SY31 ) )
                          | ( SY27 = SY30 ) )
                    | ( SY27
                      = ( pair_first @ SV3 ) ) ) ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[425]) ).

thf(429,plain,
    ! [SV10: $i,SV4: $i] :
      ( ( ( ~ ~ ! [SY43: $i] :
                  ( SV4
                 != ( ordered_pair @ SV10 @ SY43 ) ) )
        = $true )
      | ( ( ! [SY34: $i] :
              ~ ( ~ ( ( SY34
                     != ( pair_second @ SV4 ) )
                    | ! [SY35: $i,SY36: $i] :
                        ( ( SV4
                         != ( ordered_pair @ SY35 @ SY36 ) )
                        | ( SY34 = SY36 ) ) )
                | ~ ( ~ ! [SY37: $i,SY38: $i] :
                          ( ( SV4
                           != ( ordered_pair @ SY37 @ SY38 ) )
                          | ( SY34 = SY38 ) )
                    | ( SY34
                      = ( pair_second @ SV4 ) ) ) ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[426]) ).

thf(430,plain,
    ! [SV8: $i,SV7: $i,SV6: $i,SV2: $i] :
      ( ( ( ( ordered_pair @ SV2 @ SV6 )
          = ( ordered_pair @ SV7 @ SV8 ) )
        = $false )
      | ( ( ~ ( ( SV2 != SV7 )
              | ( SV6 != SV8 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[427]) ).

thf(431,plain,
    ! [SV9: $i,SV3: $i] :
      ( ( ( ~ ! [SY42: $i] :
                ( SV3
               != ( ordered_pair @ SV9 @ SY42 ) ) )
        = $false )
      | ( ( ! [SY27: $i] :
              ~ ( ~ ( ( SY27
                     != ( pair_first @ SV3 ) )
                    | ! [SY28: $i,SY29: $i] :
                        ( ( SV3
                         != ( ordered_pair @ SY28 @ SY29 ) )
                        | ( SY27 = SY28 ) ) )
                | ~ ( ~ ! [SY30: $i,SY31: $i] :
                          ( ( SV3
                           != ( ordered_pair @ SY30 @ SY31 ) )
                          | ( SY27 = SY30 ) )
                    | ( SY27
                      = ( pair_first @ SV3 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[428]) ).

thf(432,plain,
    ! [SV10: $i,SV4: $i] :
      ( ( ( ~ ! [SY43: $i] :
                ( SV4
               != ( ordered_pair @ SV10 @ SY43 ) ) )
        = $false )
      | ( ( ! [SY34: $i] :
              ~ ( ~ ( ( SY34
                     != ( pair_second @ SV4 ) )
                    | ! [SY35: $i,SY36: $i] :
                        ( ( SV4
                         != ( ordered_pair @ SY35 @ SY36 ) )
                        | ( SY34 = SY36 ) ) )
                | ~ ( ~ ! [SY37: $i,SY38: $i] :
                          ( ( SV4
                           != ( ordered_pair @ SY37 @ SY38 ) )
                          | ( SY34 = SY38 ) )
                    | ( SY34
                      = ( pair_second @ SV4 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[429]) ).

thf(433,plain,
    ! [SV8: $i,SV6: $i,SV7: $i,SV2: $i] :
      ( ( ( ( SV2 != SV7 )
          | ( SV6 != SV8 ) )
        = $false )
      | ( ( ( ordered_pair @ SV2 @ SV6 )
          = ( ordered_pair @ SV7 @ SV8 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[430]) ).

thf(434,plain,
    ! [SV9: $i,SV3: $i] :
      ( ( ( ! [SY42: $i] :
              ( SV3
             != ( ordered_pair @ SV9 @ SY42 ) ) )
        = $true )
      | ( ( ! [SY27: $i] :
              ~ ( ~ ( ( SY27
                     != ( pair_first @ SV3 ) )
                    | ! [SY28: $i,SY29: $i] :
                        ( ( SV3
                         != ( ordered_pair @ SY28 @ SY29 ) )
                        | ( SY27 = SY28 ) ) )
                | ~ ( ~ ! [SY30: $i,SY31: $i] :
                          ( ( SV3
                           != ( ordered_pair @ SY30 @ SY31 ) )
                          | ( SY27 = SY30 ) )
                    | ( SY27
                      = ( pair_first @ SV3 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[431]) ).

thf(435,plain,
    ! [SV10: $i,SV4: $i] :
      ( ( ( ! [SY43: $i] :
              ( SV4
             != ( ordered_pair @ SV10 @ SY43 ) ) )
        = $true )
      | ( ( ! [SY34: $i] :
              ~ ( ~ ( ( SY34
                     != ( pair_second @ SV4 ) )
                    | ! [SY35: $i,SY36: $i] :
                        ( ( SV4
                         != ( ordered_pair @ SY35 @ SY36 ) )
                        | ( SY34 = SY36 ) ) )
                | ~ ( ~ ! [SY37: $i,SY38: $i] :
                          ( ( SV4
                           != ( ordered_pair @ SY37 @ SY38 ) )
                          | ( SY34 = SY38 ) )
                    | ( SY34
                      = ( pair_second @ SV4 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[432]) ).

thf(436,plain,
    ! [SV8: $i,SV6: $i,SV7: $i,SV2: $i] :
      ( ( ( SV2 != SV7 )
        = $false )
      | ( ( ( ordered_pair @ SV2 @ SV6 )
          = ( ordered_pair @ SV7 @ SV8 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[433]) ).

thf(437,plain,
    ! [SV7: $i,SV2: $i,SV8: $i,SV6: $i] :
      ( ( ( SV6 != SV8 )
        = $false )
      | ( ( ( ordered_pair @ SV2 @ SV6 )
          = ( ordered_pair @ SV7 @ SV8 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[433]) ).

thf(438,plain,
    ! [SV11: $i,SV9: $i,SV3: $i] :
      ( ( ( SV3
         != ( ordered_pair @ SV9 @ SV11 ) )
        = $true )
      | ( ( ! [SY27: $i] :
              ~ ( ~ ( ( SY27
                     != ( pair_first @ SV3 ) )
                    | ! [SY28: $i,SY29: $i] :
                        ( ( SV3
                         != ( ordered_pair @ SY28 @ SY29 ) )
                        | ( SY27 = SY28 ) ) )
                | ~ ( ~ ! [SY30: $i,SY31: $i] :
                          ( ( SV3
                           != ( ordered_pair @ SY30 @ SY31 ) )
                          | ( SY27 = SY30 ) )
                    | ( SY27
                      = ( pair_first @ SV3 ) ) ) ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[434]) ).

thf(439,plain,
    ! [SV12: $i,SV10: $i,SV4: $i] :
      ( ( ( SV4
         != ( ordered_pair @ SV10 @ SV12 ) )
        = $true )
      | ( ( ! [SY34: $i] :
              ~ ( ~ ( ( SY34
                     != ( pair_second @ SV4 ) )
                    | ! [SY35: $i,SY36: $i] :
                        ( ( SV4
                         != ( ordered_pair @ SY35 @ SY36 ) )
                        | ( SY34 = SY36 ) ) )
                | ~ ( ~ ! [SY37: $i,SY38: $i] :
                          ( ( SV4
                           != ( ordered_pair @ SY37 @ SY38 ) )
                          | ( SY34 = SY38 ) )
                    | ( SY34
                      = ( pair_second @ SV4 ) ) ) ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[435]) ).

thf(440,plain,
    ! [SV8: $i,SV6: $i,SV7: $i,SV2: $i] :
      ( ( ( SV2 = SV7 )
        = $true )
      | ( ( ( ordered_pair @ SV2 @ SV6 )
          = ( ordered_pair @ SV7 @ SV8 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[436]) ).

thf(441,plain,
    ! [SV7: $i,SV2: $i,SV8: $i,SV6: $i] :
      ( ( ( SV6 = SV8 )
        = $true )
      | ( ( ( ordered_pair @ SV2 @ SV6 )
          = ( ordered_pair @ SV7 @ SV8 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[437]) ).

thf(442,plain,
    ! [SV11: $i,SV9: $i,SV3: $i] :
      ( ( ( SV3
          = ( ordered_pair @ SV9 @ SV11 ) )
        = $false )
      | ( ( ! [SY27: $i] :
              ~ ( ~ ( ( SY27
                     != ( pair_first @ SV3 ) )
                    | ! [SY28: $i,SY29: $i] :
                        ( ( SV3
                         != ( ordered_pair @ SY28 @ SY29 ) )
                        | ( SY27 = SY28 ) ) )
                | ~ ( ~ ! [SY30: $i,SY31: $i] :
                          ( ( SV3
                           != ( ordered_pair @ SY30 @ SY31 ) )
                          | ( SY27 = SY30 ) )
                    | ( SY27
                      = ( pair_first @ SV3 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[438]) ).

thf(443,plain,
    ! [SV12: $i,SV10: $i,SV4: $i] :
      ( ( ( SV4
          = ( ordered_pair @ SV10 @ SV12 ) )
        = $false )
      | ( ( ! [SY34: $i] :
              ~ ( ~ ( ( SY34
                     != ( pair_second @ SV4 ) )
                    | ! [SY35: $i,SY36: $i] :
                        ( ( SV4
                         != ( ordered_pair @ SY35 @ SY36 ) )
                        | ( SY34 = SY36 ) ) )
                | ~ ( ~ ! [SY37: $i,SY38: $i] :
                          ( ( SV4
                           != ( ordered_pair @ SY37 @ SY38 ) )
                          | ( SY34 = SY38 ) )
                    | ( SY34
                      = ( pair_second @ SV4 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[439]) ).

thf(444,plain,
    ! [SV11: $i,SV9: $i,SV3: $i,SV13: $i] :
      ( ( ( ~ ( ~ ( ( SV13
                   != ( pair_first @ SV3 ) )
                  | ! [SY44: $i,SY45: $i] :
                      ( ( SV3
                       != ( ordered_pair @ SY44 @ SY45 ) )
                      | ( SV13 = SY44 ) ) )
              | ~ ( ~ ! [SY46: $i,SY47: $i] :
                        ( ( SV3
                         != ( ordered_pair @ SY46 @ SY47 ) )
                        | ( SV13 = SY46 ) )
                  | ( SV13
                    = ( pair_first @ SV3 ) ) ) ) )
        = $true )
      | ( ( SV3
          = ( ordered_pair @ SV9 @ SV11 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[442]) ).

thf(445,plain,
    ! [SV12: $i,SV10: $i,SV4: $i,SV14: $i] :
      ( ( ( ~ ( ~ ( ( SV14
                   != ( pair_second @ SV4 ) )
                  | ! [SY48: $i,SY49: $i] :
                      ( ( SV4
                       != ( ordered_pair @ SY48 @ SY49 ) )
                      | ( SV14 = SY49 ) ) )
              | ~ ( ~ ! [SY50: $i,SY51: $i] :
                        ( ( SV4
                         != ( ordered_pair @ SY50 @ SY51 ) )
                        | ( SV14 = SY51 ) )
                  | ( SV14
                    = ( pair_second @ SV4 ) ) ) ) )
        = $true )
      | ( ( SV4
          = ( ordered_pair @ SV10 @ SV12 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[443]) ).

thf(446,plain,
    ! [SV11: $i,SV9: $i,SV3: $i,SV13: $i] :
      ( ( ( ~ ( ( SV13
               != ( pair_first @ SV3 ) )
              | ! [SY44: $i,SY45: $i] :
                  ( ( SV3
                   != ( ordered_pair @ SY44 @ SY45 ) )
                  | ( SV13 = SY44 ) ) )
          | ~ ( ~ ! [SY46: $i,SY47: $i] :
                    ( ( SV3
                     != ( ordered_pair @ SY46 @ SY47 ) )
                    | ( SV13 = SY46 ) )
              | ( SV13
                = ( pair_first @ SV3 ) ) ) )
        = $false )
      | ( ( SV3
          = ( ordered_pair @ SV9 @ SV11 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[444]) ).

thf(447,plain,
    ! [SV12: $i,SV10: $i,SV4: $i,SV14: $i] :
      ( ( ( ~ ( ( SV14
               != ( pair_second @ SV4 ) )
              | ! [SY48: $i,SY49: $i] :
                  ( ( SV4
                   != ( ordered_pair @ SY48 @ SY49 ) )
                  | ( SV14 = SY49 ) ) )
          | ~ ( ~ ! [SY50: $i,SY51: $i] :
                    ( ( SV4
                     != ( ordered_pair @ SY50 @ SY51 ) )
                    | ( SV14 = SY51 ) )
              | ( SV14
                = ( pair_second @ SV4 ) ) ) )
        = $false )
      | ( ( SV4
          = ( ordered_pair @ SV10 @ SV12 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[445]) ).

thf(448,plain,
    ! [SV11: $i,SV9: $i,SV3: $i,SV13: $i] :
      ( ( ( ~ ( ( SV13
               != ( pair_first @ SV3 ) )
              | ! [SY44: $i,SY45: $i] :
                  ( ( SV3
                   != ( ordered_pair @ SY44 @ SY45 ) )
                  | ( SV13 = SY44 ) ) ) )
        = $false )
      | ( ( SV3
          = ( ordered_pair @ SV9 @ SV11 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[446]) ).

thf(449,plain,
    ! [SV11: $i,SV9: $i,SV13: $i,SV3: $i] :
      ( ( ( ~ ( ~ ! [SY46: $i,SY47: $i] :
                    ( ( SV3
                     != ( ordered_pair @ SY46 @ SY47 ) )
                    | ( SV13 = SY46 ) )
              | ( SV13
                = ( pair_first @ SV3 ) ) ) )
        = $false )
      | ( ( SV3
          = ( ordered_pair @ SV9 @ SV11 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[446]) ).

thf(450,plain,
    ! [SV12: $i,SV10: $i,SV4: $i,SV14: $i] :
      ( ( ( ~ ( ( SV14
               != ( pair_second @ SV4 ) )
              | ! [SY48: $i,SY49: $i] :
                  ( ( SV4
                   != ( ordered_pair @ SY48 @ SY49 ) )
                  | ( SV14 = SY49 ) ) ) )
        = $false )
      | ( ( SV4
          = ( ordered_pair @ SV10 @ SV12 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[447]) ).

thf(451,plain,
    ! [SV12: $i,SV10: $i,SV14: $i,SV4: $i] :
      ( ( ( ~ ( ~ ! [SY50: $i,SY51: $i] :
                    ( ( SV4
                     != ( ordered_pair @ SY50 @ SY51 ) )
                    | ( SV14 = SY51 ) )
              | ( SV14
                = ( pair_second @ SV4 ) ) ) )
        = $false )
      | ( ( SV4
          = ( ordered_pair @ SV10 @ SV12 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[447]) ).

thf(452,plain,
    ! [SV11: $i,SV9: $i,SV3: $i,SV13: $i] :
      ( ( ( ( SV13
           != ( pair_first @ SV3 ) )
          | ! [SY44: $i,SY45: $i] :
              ( ( SV3
               != ( ordered_pair @ SY44 @ SY45 ) )
              | ( SV13 = SY44 ) ) )
        = $true )
      | ( ( SV3
          = ( ordered_pair @ SV9 @ SV11 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[448]) ).

thf(453,plain,
    ! [SV11: $i,SV9: $i,SV13: $i,SV3: $i] :
      ( ( ( ~ ! [SY46: $i,SY47: $i] :
                ( ( SV3
                 != ( ordered_pair @ SY46 @ SY47 ) )
                | ( SV13 = SY46 ) )
          | ( SV13
            = ( pair_first @ SV3 ) ) )
        = $true )
      | ( ( SV3
          = ( ordered_pair @ SV9 @ SV11 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[449]) ).

thf(454,plain,
    ! [SV12: $i,SV10: $i,SV4: $i,SV14: $i] :
      ( ( ( ( SV14
           != ( pair_second @ SV4 ) )
          | ! [SY48: $i,SY49: $i] :
              ( ( SV4
               != ( ordered_pair @ SY48 @ SY49 ) )
              | ( SV14 = SY49 ) ) )
        = $true )
      | ( ( SV4
          = ( ordered_pair @ SV10 @ SV12 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[450]) ).

thf(455,plain,
    ! [SV12: $i,SV10: $i,SV14: $i,SV4: $i] :
      ( ( ( ~ ! [SY50: $i,SY51: $i] :
                ( ( SV4
                 != ( ordered_pair @ SY50 @ SY51 ) )
                | ( SV14 = SY51 ) )
          | ( SV14
            = ( pair_second @ SV4 ) ) )
        = $true )
      | ( ( SV4
          = ( ordered_pair @ SV10 @ SV12 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[451]) ).

thf(456,plain,
    ! [SV11: $i,SV9: $i,SV3: $i,SV13: $i] :
      ( ( ( SV13
         != ( pair_first @ SV3 ) )
        = $true )
      | ( ( ! [SY44: $i,SY45: $i] :
              ( ( SV3
               != ( ordered_pair @ SY44 @ SY45 ) )
              | ( SV13 = SY44 ) ) )
        = $true )
      | ( ( SV3
          = ( ordered_pair @ SV9 @ SV11 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[452]) ).

thf(457,plain,
    ! [SV11: $i,SV9: $i,SV13: $i,SV3: $i] :
      ( ( ( ~ ! [SY46: $i,SY47: $i] :
                ( ( SV3
                 != ( ordered_pair @ SY46 @ SY47 ) )
                | ( SV13 = SY46 ) ) )
        = $true )
      | ( ( SV13
          = ( pair_first @ SV3 ) )
        = $true )
      | ( ( SV3
          = ( ordered_pair @ SV9 @ SV11 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[453]) ).

thf(458,plain,
    ! [SV12: $i,SV10: $i,SV4: $i,SV14: $i] :
      ( ( ( SV14
         != ( pair_second @ SV4 ) )
        = $true )
      | ( ( ! [SY48: $i,SY49: $i] :
              ( ( SV4
               != ( ordered_pair @ SY48 @ SY49 ) )
              | ( SV14 = SY49 ) ) )
        = $true )
      | ( ( SV4
          = ( ordered_pair @ SV10 @ SV12 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[454]) ).

thf(459,plain,
    ! [SV12: $i,SV10: $i,SV14: $i,SV4: $i] :
      ( ( ( ~ ! [SY50: $i,SY51: $i] :
                ( ( SV4
                 != ( ordered_pair @ SY50 @ SY51 ) )
                | ( SV14 = SY51 ) ) )
        = $true )
      | ( ( SV14
          = ( pair_second @ SV4 ) )
        = $true )
      | ( ( SV4
          = ( ordered_pair @ SV10 @ SV12 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[455]) ).

thf(460,plain,
    ! [SV11: $i,SV9: $i,SV3: $i,SV13: $i] :
      ( ( ( SV13
          = ( pair_first @ SV3 ) )
        = $false )
      | ( ( ! [SY44: $i,SY45: $i] :
              ( ( SV3
               != ( ordered_pair @ SY44 @ SY45 ) )
              | ( SV13 = SY44 ) ) )
        = $true )
      | ( ( SV3
          = ( ordered_pair @ SV9 @ SV11 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[456]) ).

thf(461,plain,
    ! [SV11: $i,SV9: $i,SV13: $i,SV3: $i] :
      ( ( ( ! [SY46: $i,SY47: $i] :
              ( ( SV3
               != ( ordered_pair @ SY46 @ SY47 ) )
              | ( SV13 = SY46 ) ) )
        = $false )
      | ( ( SV13
          = ( pair_first @ SV3 ) )
        = $true )
      | ( ( SV3
          = ( ordered_pair @ SV9 @ SV11 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[457]) ).

thf(462,plain,
    ! [SV12: $i,SV10: $i,SV4: $i,SV14: $i] :
      ( ( ( SV14
          = ( pair_second @ SV4 ) )
        = $false )
      | ( ( ! [SY48: $i,SY49: $i] :
              ( ( SV4
               != ( ordered_pair @ SY48 @ SY49 ) )
              | ( SV14 = SY49 ) ) )
        = $true )
      | ( ( SV4
          = ( ordered_pair @ SV10 @ SV12 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[458]) ).

thf(463,plain,
    ! [SV12: $i,SV10: $i,SV14: $i,SV4: $i] :
      ( ( ( ! [SY50: $i,SY51: $i] :
              ( ( SV4
               != ( ordered_pair @ SY50 @ SY51 ) )
              | ( SV14 = SY51 ) ) )
        = $false )
      | ( ( SV14
          = ( pair_second @ SV4 ) )
        = $true )
      | ( ( SV4
          = ( ordered_pair @ SV10 @ SV12 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[459]) ).

thf(464,plain,
    ! [SV11: $i,SV9: $i,SV13: $i,SV15: $i,SV3: $i] :
      ( ( ( ! [SY52: $i] :
              ( ( SV3
               != ( ordered_pair @ SV15 @ SY52 ) )
              | ( SV13 = SV15 ) ) )
        = $true )
      | ( ( SV13
          = ( pair_first @ SV3 ) )
        = $false )
      | ( ( SV3
          = ( ordered_pair @ SV9 @ SV11 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[460]) ).

thf(465,plain,
    ! [SV13: $i,SV9: $i,SV11: $i,SV3: $i] :
      ( ( ( ! [SY53: $i] :
              ( ( SV3
               != ( ordered_pair @ ( sK3_SY46 @ SV11 @ SV9 @ SV13 @ SV3 ) @ SY53 ) )
              | ( SV13
                = ( sK3_SY46 @ SV11 @ SV9 @ SV13 @ SV3 ) ) ) )
        = $false )
      | ( ( SV13
          = ( pair_first @ SV3 ) )
        = $true )
      | ( ( SV3
          = ( ordered_pair @ SV9 @ SV11 ) )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[461]) ).

thf(466,plain,
    ! [SV12: $i,SV10: $i,SV14: $i,SV16: $i,SV4: $i] :
      ( ( ( ! [SY54: $i] :
              ( ( SV4
               != ( ordered_pair @ SV16 @ SY54 ) )
              | ( SV14 = SY54 ) ) )
        = $true )
      | ( ( SV14
          = ( pair_second @ SV4 ) )
        = $false )
      | ( ( SV4
          = ( ordered_pair @ SV10 @ SV12 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[462]) ).

thf(467,plain,
    ! [SV14: $i,SV10: $i,SV12: $i,SV4: $i] :
      ( ( ( ! [SY55: $i] :
              ( ( SV4
               != ( ordered_pair @ ( sK4_SY50 @ SV12 @ SV10 @ SV14 @ SV4 ) @ SY55 ) )
              | ( SV14 = SY55 ) ) )
        = $false )
      | ( ( SV14
          = ( pair_second @ SV4 ) )
        = $true )
      | ( ( SV4
          = ( ordered_pair @ SV10 @ SV12 ) )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[463]) ).

thf(468,plain,
    ! [SV11: $i,SV9: $i,SV13: $i,SV17: $i,SV15: $i,SV3: $i] :
      ( ( ( ( SV3
           != ( ordered_pair @ SV15 @ SV17 ) )
          | ( SV13 = SV15 ) )
        = $true )
      | ( ( SV13
          = ( pair_first @ SV3 ) )
        = $false )
      | ( ( SV3
          = ( ordered_pair @ SV9 @ SV11 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[464]) ).

thf(469,plain,
    ! [SV13: $i,SV9: $i,SV11: $i,SV3: $i] :
      ( ( ( ( SV3
           != ( ordered_pair @ ( sK3_SY46 @ SV11 @ SV9 @ SV13 @ SV3 ) @ ( sK5_SY53 @ SV13 @ SV9 @ SV11 @ SV3 ) ) )
          | ( SV13
            = ( sK3_SY46 @ SV11 @ SV9 @ SV13 @ SV3 ) ) )
        = $false )
      | ( ( SV13
          = ( pair_first @ SV3 ) )
        = $true )
      | ( ( SV3
          = ( ordered_pair @ SV9 @ SV11 ) )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[465]) ).

thf(470,plain,
    ! [SV12: $i,SV10: $i,SV14: $i,SV18: $i,SV16: $i,SV4: $i] :
      ( ( ( ( SV4
           != ( ordered_pair @ SV16 @ SV18 ) )
          | ( SV14 = SV18 ) )
        = $true )
      | ( ( SV14
          = ( pair_second @ SV4 ) )
        = $false )
      | ( ( SV4
          = ( ordered_pair @ SV10 @ SV12 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[466]) ).

thf(471,plain,
    ! [SV14: $i,SV10: $i,SV12: $i,SV4: $i] :
      ( ( ( ( SV4
           != ( ordered_pair @ ( sK4_SY50 @ SV12 @ SV10 @ SV14 @ SV4 ) @ ( sK6_SY55 @ SV14 @ SV10 @ SV12 @ SV4 ) ) )
          | ( SV14
            = ( sK6_SY55 @ SV14 @ SV10 @ SV12 @ SV4 ) ) )
        = $false )
      | ( ( SV14
          = ( pair_second @ SV4 ) )
        = $true )
      | ( ( SV4
          = ( ordered_pair @ SV10 @ SV12 ) )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[467]) ).

thf(472,plain,
    ! [SV11: $i,SV9: $i,SV13: $i,SV17: $i,SV15: $i,SV3: $i] :
      ( ( ( SV3
         != ( ordered_pair @ SV15 @ SV17 ) )
        = $true )
      | ( ( SV13 = SV15 )
        = $true )
      | ( ( SV13
          = ( pair_first @ SV3 ) )
        = $false )
      | ( ( SV3
          = ( ordered_pair @ SV9 @ SV11 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[468]) ).

thf(473,plain,
    ! [SV13: $i,SV9: $i,SV11: $i,SV3: $i] :
      ( ( ( SV3
         != ( ordered_pair @ ( sK3_SY46 @ SV11 @ SV9 @ SV13 @ SV3 ) @ ( sK5_SY53 @ SV13 @ SV9 @ SV11 @ SV3 ) ) )
        = $false )
      | ( ( SV13
          = ( pair_first @ SV3 ) )
        = $true )
      | ( ( SV3
          = ( ordered_pair @ SV9 @ SV11 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[469]) ).

thf(474,plain,
    ! [SV3: $i,SV9: $i,SV11: $i,SV13: $i] :
      ( ( ( SV13
          = ( sK3_SY46 @ SV11 @ SV9 @ SV13 @ SV3 ) )
        = $false )
      | ( ( SV13
          = ( pair_first @ SV3 ) )
        = $true )
      | ( ( SV3
          = ( ordered_pair @ SV9 @ SV11 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[469]) ).

thf(475,plain,
    ! [SV12: $i,SV10: $i,SV14: $i,SV18: $i,SV16: $i,SV4: $i] :
      ( ( ( SV4
         != ( ordered_pair @ SV16 @ SV18 ) )
        = $true )
      | ( ( SV14 = SV18 )
        = $true )
      | ( ( SV14
          = ( pair_second @ SV4 ) )
        = $false )
      | ( ( SV4
          = ( ordered_pair @ SV10 @ SV12 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[470]) ).

thf(476,plain,
    ! [SV14: $i,SV10: $i,SV12: $i,SV4: $i] :
      ( ( ( SV4
         != ( ordered_pair @ ( sK4_SY50 @ SV12 @ SV10 @ SV14 @ SV4 ) @ ( sK6_SY55 @ SV14 @ SV10 @ SV12 @ SV4 ) ) )
        = $false )
      | ( ( SV14
          = ( pair_second @ SV4 ) )
        = $true )
      | ( ( SV4
          = ( ordered_pair @ SV10 @ SV12 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[471]) ).

thf(477,plain,
    ! [SV4: $i,SV12: $i,SV10: $i,SV14: $i] :
      ( ( ( SV14
          = ( sK6_SY55 @ SV14 @ SV10 @ SV12 @ SV4 ) )
        = $false )
      | ( ( SV14
          = ( pair_second @ SV4 ) )
        = $true )
      | ( ( SV4
          = ( ordered_pair @ SV10 @ SV12 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[471]) ).

thf(478,plain,
    ! [SV11: $i,SV9: $i,SV13: $i,SV17: $i,SV15: $i,SV3: $i] :
      ( ( ( SV3
          = ( ordered_pair @ SV15 @ SV17 ) )
        = $false )
      | ( ( SV13 = SV15 )
        = $true )
      | ( ( SV13
          = ( pair_first @ SV3 ) )
        = $false )
      | ( ( SV3
          = ( ordered_pair @ SV9 @ SV11 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[472]) ).

thf(479,plain,
    ! [SV13: $i,SV9: $i,SV11: $i,SV3: $i] :
      ( ( ( SV3
          = ( ordered_pair @ ( sK3_SY46 @ SV11 @ SV9 @ SV13 @ SV3 ) @ ( sK5_SY53 @ SV13 @ SV9 @ SV11 @ SV3 ) ) )
        = $true )
      | ( ( SV13
          = ( pair_first @ SV3 ) )
        = $true )
      | ( ( SV3
          = ( ordered_pair @ SV9 @ SV11 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[473]) ).

thf(480,plain,
    ! [SV12: $i,SV10: $i,SV14: $i,SV18: $i,SV16: $i,SV4: $i] :
      ( ( ( SV4
          = ( ordered_pair @ SV16 @ SV18 ) )
        = $false )
      | ( ( SV14 = SV18 )
        = $true )
      | ( ( SV14
          = ( pair_second @ SV4 ) )
        = $false )
      | ( ( SV4
          = ( ordered_pair @ SV10 @ SV12 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[475]) ).

thf(481,plain,
    ! [SV14: $i,SV10: $i,SV12: $i,SV4: $i] :
      ( ( ( SV4
          = ( ordered_pair @ ( sK4_SY50 @ SV12 @ SV10 @ SV14 @ SV4 ) @ ( sK6_SY55 @ SV14 @ SV10 @ SV12 @ SV4 ) ) )
        = $true )
      | ( ( SV14
          = ( pair_second @ SV4 ) )
        = $true )
      | ( ( SV4
          = ( ordered_pair @ SV10 @ SV12 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[476]) ).

thf(482,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[382,481,480,479,478,477,474,441,440,420,412,405,404,403,402,401,400,399,398,397,396,395,394,393,392,391,390,389,388,387,386,385,384,383]) ).

thf(483,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( ( ordered_pair @ A @ B )
            = ( ordered_pair @ C @ D ) )
         => ( ( A = C )
            & ( B = D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[372]) ).

thf(484,plain,
    ( ( ! [A: $i] :
          ( ? [B: $i,C: $i] :
              ( A
              = ( ordered_pair @ B @ C ) )
         => ! [B: $i] :
              ( ( B
                = ( pair_first @ A ) )
            <=> ! [C: $i,D: $i] :
                  ( ( A
                    = ( ordered_pair @ C @ D ) )
                 => ( B = C ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[371]) ).

thf(485,plain,
    ( ( ! [A: $i] :
          ( ? [B: $i,C: $i] :
              ( A
              = ( ordered_pair @ B @ C ) )
         => ! [B: $i] :
              ( ( B
                = ( pair_second @ A ) )
            <=> ! [C: $i,D: $i] :
                  ( ( A
                    = ( ordered_pair @ C @ D ) )
                 => ( B = D ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[370]) ).

thf(486,plain,
    $true = $true,
    inference(copy,[status(thm)],[369]) ).

thf(487,plain,
    $true = $true,
    inference(copy,[status(thm)],[368]) ).

thf(488,plain,
    $true = $true,
    inference(copy,[status(thm)],[367]) ).

thf(489,plain,
    $true = $true,
    inference(copy,[status(thm)],[366]) ).

thf(490,plain,
    $true = $true,
    inference(copy,[status(thm)],[365]) ).

thf(491,plain,
    $true = $true,
    inference(copy,[status(thm)],[364]) ).

thf(492,plain,
    $true = $true,
    inference(copy,[status(thm)],[363]) ).

thf(493,plain,
    $true = $true,
    inference(copy,[status(thm)],[362]) ).

thf(494,plain,
    $true = $true,
    inference(copy,[status(thm)],[361]) ).

thf(495,plain,
    $true = $true,
    inference(copy,[status(thm)],[360]) ).

thf(496,plain,
    $true = $true,
    inference(copy,[status(thm)],[359]) ).

thf(497,plain,
    $true = $true,
    inference(copy,[status(thm)],[358]) ).

thf(498,plain,
    $true = $true,
    inference(copy,[status(thm)],[357]) ).

thf(499,plain,
    $true = $true,
    inference(copy,[status(thm)],[356]) ).

thf(500,plain,
    $true = $true,
    inference(copy,[status(thm)],[355]) ).

thf(501,plain,
    $true = $true,
    inference(copy,[status(thm)],[354]) ).

thf(502,plain,
    $true = $true,
    inference(copy,[status(thm)],[353]) ).

thf(503,plain,
    $true = $true,
    inference(copy,[status(thm)],[352]) ).

thf(504,plain,
    $true = $true,
    inference(copy,[status(thm)],[351]) ).

thf(505,plain,
    $true = $true,
    inference(copy,[status(thm)],[350]) ).

thf(506,plain,
    $true = $true,
    inference(copy,[status(thm)],[349]) ).

thf(507,plain,
    $true = $true,
    inference(copy,[status(thm)],[348]) ).

thf(508,plain,
    $true = $true,
    inference(copy,[status(thm)],[347]) ).

thf(509,plain,
    $true = $true,
    inference(copy,[status(thm)],[346]) ).

thf(510,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( ordered_pair @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[345]) ).

thf(511,plain,
    ( ( ( pair_second @ ( ordered_pair @ sK1_A @ sK2_SY20 ) )
     != sK2_SY20 )
    = $true ),
    inference(copy,[status(thm)],[378]) ).

thf(512,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i,SX3: $i] :
          ( ( ( ordered_pair @ SX0 @ SX1 )
           != ( ordered_pair @ SX2 @ SX3 ) )
          | ~ ( ( SX0 != SX2 )
              | ( SX1 != SX3 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[483]) ).

thf(513,plain,
    ( ( ! [SX0: $i] :
          ( ~ ~ ! [SX1: $i] :
                  ~ ~ ! [SX2: $i] :
                        ( SX0
                       != ( ordered_pair @ SX1 @ SX2 ) )
          | ! [SX1: $i] :
              ~ ( ~ ( ( SX1
                     != ( pair_second @ SX0 ) )
                    | ! [SX2: $i,SX3: $i] :
                        ( ( SX0
                         != ( ordered_pair @ SX2 @ SX3 ) )
                        | ( SX1 = SX3 ) ) )
                | ~ ( ~ ! [SX2: $i,SX3: $i] :
                          ( ( SX0
                           != ( ordered_pair @ SX2 @ SX3 ) )
                          | ( SX1 = SX3 ) )
                    | ( SX1
                      = ( pair_second @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[485]) ).

thf(514,plain,
    ( ( ! [SX0: $i] :
          ( ~ ~ ! [SX1: $i] :
                  ~ ~ ! [SX2: $i] :
                        ( SX0
                       != ( ordered_pair @ SX1 @ SX2 ) )
          | ! [SX1: $i] :
              ~ ( ~ ( ( SX1
                     != ( pair_first @ SX0 ) )
                    | ! [SX2: $i,SX3: $i] :
                        ( ( SX0
                         != ( ordered_pair @ SX2 @ SX3 ) )
                        | ( SX1 = SX2 ) ) )
                | ~ ( ~ ! [SX2: $i,SX3: $i] :
                          ( ( SX0
                           != ( ordered_pair @ SX2 @ SX3 ) )
                          | ( SX1 = SX2 ) )
                    | ( SX1
                      = ( pair_first @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[484]) ).

thf(515,plain,
    ! [SV19: $i] :
      ( ( ! [SY56: $i] :
            ~ ( empty @ ( ordered_pair @ SV19 @ SY56 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[510]) ).

thf(516,plain,
    ( ( ( pair_second @ ( ordered_pair @ sK1_A @ sK2_SY20 ) )
      = sK2_SY20 )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[511]) ).

thf(517,plain,
    ! [SV20: $i] :
      ( ( ! [SY57: $i,SY58: $i,SY59: $i] :
            ( ( ( ordered_pair @ SV20 @ SY57 )
             != ( ordered_pair @ SY58 @ SY59 ) )
            | ~ ( ( SV20 != SY58 )
                | ( SY57 != SY59 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[512]) ).

thf(518,plain,
    ! [SV21: $i] :
      ( ( ~ ~ ! [SY60: $i] :
                ~ ~ ! [SY61: $i] :
                      ( SV21
                     != ( ordered_pair @ SY60 @ SY61 ) )
        | ! [SY62: $i] :
            ~ ( ~ ( ( SY62
                   != ( pair_second @ SV21 ) )
                  | ! [SY63: $i,SY64: $i] :
                      ( ( SV21
                       != ( ordered_pair @ SY63 @ SY64 ) )
                      | ( SY62 = SY64 ) ) )
              | ~ ( ~ ! [SY65: $i,SY66: $i] :
                        ( ( SV21
                         != ( ordered_pair @ SY65 @ SY66 ) )
                        | ( SY62 = SY66 ) )
                  | ( SY62
                    = ( pair_second @ SV21 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[513]) ).

thf(519,plain,
    ! [SV22: $i] :
      ( ( ~ ~ ! [SY67: $i] :
                ~ ~ ! [SY68: $i] :
                      ( SV22
                     != ( ordered_pair @ SY67 @ SY68 ) )
        | ! [SY69: $i] :
            ~ ( ~ ( ( SY69
                   != ( pair_first @ SV22 ) )
                  | ! [SY70: $i,SY71: $i] :
                      ( ( SV22
                       != ( ordered_pair @ SY70 @ SY71 ) )
                      | ( SY69 = SY70 ) ) )
              | ~ ( ~ ! [SY72: $i,SY73: $i] :
                        ( ( SV22
                         != ( ordered_pair @ SY72 @ SY73 ) )
                        | ( SY69 = SY72 ) )
                  | ( SY69
                    = ( pair_first @ SV22 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[514]) ).

thf(520,plain,
    ! [SV23: $i,SV19: $i] :
      ( ( ~ ( empty @ ( ordered_pair @ SV19 @ SV23 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[515]) ).

thf(521,plain,
    ! [SV24: $i,SV20: $i] :
      ( ( ! [SY74: $i,SY75: $i] :
            ( ( ( ordered_pair @ SV20 @ SV24 )
             != ( ordered_pair @ SY74 @ SY75 ) )
            | ~ ( ( SV20 != SY74 )
                | ( SV24 != SY75 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[517]) ).

thf(522,plain,
    ! [SV21: $i] :
      ( ( ( ~ ~ ! [SY60: $i] :
                  ~ ~ ! [SY61: $i] :
                        ( SV21
                       != ( ordered_pair @ SY60 @ SY61 ) ) )
        = $true )
      | ( ( ! [SY62: $i] :
              ~ ( ~ ( ( SY62
                     != ( pair_second @ SV21 ) )
                    | ! [SY63: $i,SY64: $i] :
                        ( ( SV21
                         != ( ordered_pair @ SY63 @ SY64 ) )
                        | ( SY62 = SY64 ) ) )
                | ~ ( ~ ! [SY65: $i,SY66: $i] :
                          ( ( SV21
                           != ( ordered_pair @ SY65 @ SY66 ) )
                          | ( SY62 = SY66 ) )
                    | ( SY62
                      = ( pair_second @ SV21 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[518]) ).

thf(523,plain,
    ! [SV22: $i] :
      ( ( ( ~ ~ ! [SY67: $i] :
                  ~ ~ ! [SY68: $i] :
                        ( SV22
                       != ( ordered_pair @ SY67 @ SY68 ) ) )
        = $true )
      | ( ( ! [SY69: $i] :
              ~ ( ~ ( ( SY69
                     != ( pair_first @ SV22 ) )
                    | ! [SY70: $i,SY71: $i] :
                        ( ( SV22
                         != ( ordered_pair @ SY70 @ SY71 ) )
                        | ( SY69 = SY70 ) ) )
                | ~ ( ~ ! [SY72: $i,SY73: $i] :
                          ( ( SV22
                           != ( ordered_pair @ SY72 @ SY73 ) )
                          | ( SY69 = SY72 ) )
                    | ( SY69
                      = ( pair_first @ SV22 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[519]) ).

thf(524,plain,
    ! [SV23: $i,SV19: $i] :
      ( ( empty @ ( ordered_pair @ SV19 @ SV23 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[520]) ).

thf(525,plain,
    ! [SV25: $i,SV24: $i,SV20: $i] :
      ( ( ! [SY76: $i] :
            ( ( ( ordered_pair @ SV20 @ SV24 )
             != ( ordered_pair @ SV25 @ SY76 ) )
            | ~ ( ( SV20 != SV25 )
                | ( SV24 != SY76 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[521]) ).

thf(526,plain,
    ! [SV21: $i] :
      ( ( ( ~ ! [SY60: $i] :
                ~ ~ ! [SY61: $i] :
                      ( SV21
                     != ( ordered_pair @ SY60 @ SY61 ) ) )
        = $false )
      | ( ( ! [SY62: $i] :
              ~ ( ~ ( ( SY62
                     != ( pair_second @ SV21 ) )
                    | ! [SY63: $i,SY64: $i] :
                        ( ( SV21
                         != ( ordered_pair @ SY63 @ SY64 ) )
                        | ( SY62 = SY64 ) ) )
                | ~ ( ~ ! [SY65: $i,SY66: $i] :
                          ( ( SV21
                           != ( ordered_pair @ SY65 @ SY66 ) )
                          | ( SY62 = SY66 ) )
                    | ( SY62
                      = ( pair_second @ SV21 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[522]) ).

thf(527,plain,
    ! [SV22: $i] :
      ( ( ( ~ ! [SY67: $i] :
                ~ ~ ! [SY68: $i] :
                      ( SV22
                     != ( ordered_pair @ SY67 @ SY68 ) ) )
        = $false )
      | ( ( ! [SY69: $i] :
              ~ ( ~ ( ( SY69
                     != ( pair_first @ SV22 ) )
                    | ! [SY70: $i,SY71: $i] :
                        ( ( SV22
                         != ( ordered_pair @ SY70 @ SY71 ) )
                        | ( SY69 = SY70 ) ) )
                | ~ ( ~ ! [SY72: $i,SY73: $i] :
                          ( ( SV22
                           != ( ordered_pair @ SY72 @ SY73 ) )
                          | ( SY69 = SY72 ) )
                    | ( SY69
                      = ( pair_first @ SV22 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[523]) ).

thf(528,plain,
    ! [SV26: $i,SV25: $i,SV24: $i,SV20: $i] :
      ( ( ( ( ordered_pair @ SV20 @ SV24 )
         != ( ordered_pair @ SV25 @ SV26 ) )
        | ~ ( ( SV20 != SV25 )
            | ( SV24 != SV26 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[525]) ).

thf(529,plain,
    ! [SV21: $i] :
      ( ( ( ! [SY60: $i] :
              ~ ~ ! [SY61: $i] :
                    ( SV21
                   != ( ordered_pair @ SY60 @ SY61 ) ) )
        = $true )
      | ( ( ! [SY62: $i] :
              ~ ( ~ ( ( SY62
                     != ( pair_second @ SV21 ) )
                    | ! [SY63: $i,SY64: $i] :
                        ( ( SV21
                         != ( ordered_pair @ SY63 @ SY64 ) )
                        | ( SY62 = SY64 ) ) )
                | ~ ( ~ ! [SY65: $i,SY66: $i] :
                          ( ( SV21
                           != ( ordered_pair @ SY65 @ SY66 ) )
                          | ( SY62 = SY66 ) )
                    | ( SY62
                      = ( pair_second @ SV21 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[526]) ).

thf(530,plain,
    ! [SV22: $i] :
      ( ( ( ! [SY67: $i] :
              ~ ~ ! [SY68: $i] :
                    ( SV22
                   != ( ordered_pair @ SY67 @ SY68 ) ) )
        = $true )
      | ( ( ! [SY69: $i] :
              ~ ( ~ ( ( SY69
                     != ( pair_first @ SV22 ) )
                    | ! [SY70: $i,SY71: $i] :
                        ( ( SV22
                         != ( ordered_pair @ SY70 @ SY71 ) )
                        | ( SY69 = SY70 ) ) )
                | ~ ( ~ ! [SY72: $i,SY73: $i] :
                          ( ( SV22
                           != ( ordered_pair @ SY72 @ SY73 ) )
                          | ( SY69 = SY72 ) )
                    | ( SY69
                      = ( pair_first @ SV22 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[527]) ).

thf(531,plain,
    ! [SV26: $i,SV25: $i,SV24: $i,SV20: $i] :
      ( ( ( ( ordered_pair @ SV20 @ SV24 )
         != ( ordered_pair @ SV25 @ SV26 ) )
        = $true )
      | ( ( ~ ( ( SV20 != SV25 )
              | ( SV24 != SV26 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[528]) ).

thf(532,plain,
    ! [SV27: $i,SV21: $i] :
      ( ( ( ~ ~ ! [SY77: $i] :
                  ( SV21
                 != ( ordered_pair @ SV27 @ SY77 ) ) )
        = $true )
      | ( ( ! [SY62: $i] :
              ~ ( ~ ( ( SY62
                     != ( pair_second @ SV21 ) )
                    | ! [SY63: $i,SY64: $i] :
                        ( ( SV21
                         != ( ordered_pair @ SY63 @ SY64 ) )
                        | ( SY62 = SY64 ) ) )
                | ~ ( ~ ! [SY65: $i,SY66: $i] :
                          ( ( SV21
                           != ( ordered_pair @ SY65 @ SY66 ) )
                          | ( SY62 = SY66 ) )
                    | ( SY62
                      = ( pair_second @ SV21 ) ) ) ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[529]) ).

thf(533,plain,
    ! [SV28: $i,SV22: $i] :
      ( ( ( ~ ~ ! [SY78: $i] :
                  ( SV22
                 != ( ordered_pair @ SV28 @ SY78 ) ) )
        = $true )
      | ( ( ! [SY69: $i] :
              ~ ( ~ ( ( SY69
                     != ( pair_first @ SV22 ) )
                    | ! [SY70: $i,SY71: $i] :
                        ( ( SV22
                         != ( ordered_pair @ SY70 @ SY71 ) )
                        | ( SY69 = SY70 ) ) )
                | ~ ( ~ ! [SY72: $i,SY73: $i] :
                          ( ( SV22
                           != ( ordered_pair @ SY72 @ SY73 ) )
                          | ( SY69 = SY72 ) )
                    | ( SY69
                      = ( pair_first @ SV22 ) ) ) ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[530]) ).

thf(534,plain,
    ! [SV26: $i,SV25: $i,SV24: $i,SV20: $i] :
      ( ( ( ( ordered_pair @ SV20 @ SV24 )
          = ( ordered_pair @ SV25 @ SV26 ) )
        = $false )
      | ( ( ~ ( ( SV20 != SV25 )
              | ( SV24 != SV26 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[531]) ).

thf(535,plain,
    ! [SV27: $i,SV21: $i] :
      ( ( ( ~ ! [SY77: $i] :
                ( SV21
               != ( ordered_pair @ SV27 @ SY77 ) ) )
        = $false )
      | ( ( ! [SY62: $i] :
              ~ ( ~ ( ( SY62
                     != ( pair_second @ SV21 ) )
                    | ! [SY63: $i,SY64: $i] :
                        ( ( SV21
                         != ( ordered_pair @ SY63 @ SY64 ) )
                        | ( SY62 = SY64 ) ) )
                | ~ ( ~ ! [SY65: $i,SY66: $i] :
                          ( ( SV21
                           != ( ordered_pair @ SY65 @ SY66 ) )
                          | ( SY62 = SY66 ) )
                    | ( SY62
                      = ( pair_second @ SV21 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[532]) ).

thf(536,plain,
    ! [SV28: $i,SV22: $i] :
      ( ( ( ~ ! [SY78: $i] :
                ( SV22
               != ( ordered_pair @ SV28 @ SY78 ) ) )
        = $false )
      | ( ( ! [SY69: $i] :
              ~ ( ~ ( ( SY69
                     != ( pair_first @ SV22 ) )
                    | ! [SY70: $i,SY71: $i] :
                        ( ( SV22
                         != ( ordered_pair @ SY70 @ SY71 ) )
                        | ( SY69 = SY70 ) ) )
                | ~ ( ~ ! [SY72: $i,SY73: $i] :
                          ( ( SV22
                           != ( ordered_pair @ SY72 @ SY73 ) )
                          | ( SY69 = SY72 ) )
                    | ( SY69
                      = ( pair_first @ SV22 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[533]) ).

thf(537,plain,
    ! [SV26: $i,SV24: $i,SV25: $i,SV20: $i] :
      ( ( ( ( SV20 != SV25 )
          | ( SV24 != SV26 ) )
        = $false )
      | ( ( ( ordered_pair @ SV20 @ SV24 )
          = ( ordered_pair @ SV25 @ SV26 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[534]) ).

thf(538,plain,
    ! [SV27: $i,SV21: $i] :
      ( ( ( ! [SY77: $i] :
              ( SV21
             != ( ordered_pair @ SV27 @ SY77 ) ) )
        = $true )
      | ( ( ! [SY62: $i] :
              ~ ( ~ ( ( SY62
                     != ( pair_second @ SV21 ) )
                    | ! [SY63: $i,SY64: $i] :
                        ( ( SV21
                         != ( ordered_pair @ SY63 @ SY64 ) )
                        | ( SY62 = SY64 ) ) )
                | ~ ( ~ ! [SY65: $i,SY66: $i] :
                          ( ( SV21
                           != ( ordered_pair @ SY65 @ SY66 ) )
                          | ( SY62 = SY66 ) )
                    | ( SY62
                      = ( pair_second @ SV21 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[535]) ).

thf(539,plain,
    ! [SV28: $i,SV22: $i] :
      ( ( ( ! [SY78: $i] :
              ( SV22
             != ( ordered_pair @ SV28 @ SY78 ) ) )
        = $true )
      | ( ( ! [SY69: $i] :
              ~ ( ~ ( ( SY69
                     != ( pair_first @ SV22 ) )
                    | ! [SY70: $i,SY71: $i] :
                        ( ( SV22
                         != ( ordered_pair @ SY70 @ SY71 ) )
                        | ( SY69 = SY70 ) ) )
                | ~ ( ~ ! [SY72: $i,SY73: $i] :
                          ( ( SV22
                           != ( ordered_pair @ SY72 @ SY73 ) )
                          | ( SY69 = SY72 ) )
                    | ( SY69
                      = ( pair_first @ SV22 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[536]) ).

thf(540,plain,
    ! [SV26: $i,SV24: $i,SV25: $i,SV20: $i] :
      ( ( ( SV20 != SV25 )
        = $false )
      | ( ( ( ordered_pair @ SV20 @ SV24 )
          = ( ordered_pair @ SV25 @ SV26 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[537]) ).

thf(541,plain,
    ! [SV25: $i,SV20: $i,SV26: $i,SV24: $i] :
      ( ( ( SV24 != SV26 )
        = $false )
      | ( ( ( ordered_pair @ SV20 @ SV24 )
          = ( ordered_pair @ SV25 @ SV26 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[537]) ).

thf(542,plain,
    ! [SV29: $i,SV27: $i,SV21: $i] :
      ( ( ( SV21
         != ( ordered_pair @ SV27 @ SV29 ) )
        = $true )
      | ( ( ! [SY62: $i] :
              ~ ( ~ ( ( SY62
                     != ( pair_second @ SV21 ) )
                    | ! [SY63: $i,SY64: $i] :
                        ( ( SV21
                         != ( ordered_pair @ SY63 @ SY64 ) )
                        | ( SY62 = SY64 ) ) )
                | ~ ( ~ ! [SY65: $i,SY66: $i] :
                          ( ( SV21
                           != ( ordered_pair @ SY65 @ SY66 ) )
                          | ( SY62 = SY66 ) )
                    | ( SY62
                      = ( pair_second @ SV21 ) ) ) ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[538]) ).

thf(543,plain,
    ! [SV30: $i,SV28: $i,SV22: $i] :
      ( ( ( SV22
         != ( ordered_pair @ SV28 @ SV30 ) )
        = $true )
      | ( ( ! [SY69: $i] :
              ~ ( ~ ( ( SY69
                     != ( pair_first @ SV22 ) )
                    | ! [SY70: $i,SY71: $i] :
                        ( ( SV22
                         != ( ordered_pair @ SY70 @ SY71 ) )
                        | ( SY69 = SY70 ) ) )
                | ~ ( ~ ! [SY72: $i,SY73: $i] :
                          ( ( SV22
                           != ( ordered_pair @ SY72 @ SY73 ) )
                          | ( SY69 = SY72 ) )
                    | ( SY69
                      = ( pair_first @ SV22 ) ) ) ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[539]) ).

thf(544,plain,
    ! [SV26: $i,SV24: $i,SV25: $i,SV20: $i] :
      ( ( ( SV20 = SV25 )
        = $true )
      | ( ( ( ordered_pair @ SV20 @ SV24 )
          = ( ordered_pair @ SV25 @ SV26 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[540]) ).

thf(545,plain,
    ! [SV25: $i,SV20: $i,SV26: $i,SV24: $i] :
      ( ( ( SV24 = SV26 )
        = $true )
      | ( ( ( ordered_pair @ SV20 @ SV24 )
          = ( ordered_pair @ SV25 @ SV26 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[541]) ).

thf(546,plain,
    ! [SV29: $i,SV27: $i,SV21: $i] :
      ( ( ( SV21
          = ( ordered_pair @ SV27 @ SV29 ) )
        = $false )
      | ( ( ! [SY62: $i] :
              ~ ( ~ ( ( SY62
                     != ( pair_second @ SV21 ) )
                    | ! [SY63: $i,SY64: $i] :
                        ( ( SV21
                         != ( ordered_pair @ SY63 @ SY64 ) )
                        | ( SY62 = SY64 ) ) )
                | ~ ( ~ ! [SY65: $i,SY66: $i] :
                          ( ( SV21
                           != ( ordered_pair @ SY65 @ SY66 ) )
                          | ( SY62 = SY66 ) )
                    | ( SY62
                      = ( pair_second @ SV21 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[542]) ).

thf(547,plain,
    ! [SV30: $i,SV28: $i,SV22: $i] :
      ( ( ( SV22
          = ( ordered_pair @ SV28 @ SV30 ) )
        = $false )
      | ( ( ! [SY69: $i] :
              ~ ( ~ ( ( SY69
                     != ( pair_first @ SV22 ) )
                    | ! [SY70: $i,SY71: $i] :
                        ( ( SV22
                         != ( ordered_pair @ SY70 @ SY71 ) )
                        | ( SY69 = SY70 ) ) )
                | ~ ( ~ ! [SY72: $i,SY73: $i] :
                          ( ( SV22
                           != ( ordered_pair @ SY72 @ SY73 ) )
                          | ( SY69 = SY72 ) )
                    | ( SY69
                      = ( pair_first @ SV22 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[543]) ).

thf(548,plain,
    ! [SV29: $i,SV27: $i,SV21: $i,SV31: $i] :
      ( ( ( ~ ( ~ ( ( SV31
                   != ( pair_second @ SV21 ) )
                  | ! [SY79: $i,SY80: $i] :
                      ( ( SV21
                       != ( ordered_pair @ SY79 @ SY80 ) )
                      | ( SV31 = SY80 ) ) )
              | ~ ( ~ ! [SY81: $i,SY82: $i] :
                        ( ( SV21
                         != ( ordered_pair @ SY81 @ SY82 ) )
                        | ( SV31 = SY82 ) )
                  | ( SV31
                    = ( pair_second @ SV21 ) ) ) ) )
        = $true )
      | ( ( SV21
          = ( ordered_pair @ SV27 @ SV29 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[546]) ).

thf(549,plain,
    ! [SV30: $i,SV28: $i,SV22: $i,SV32: $i] :
      ( ( ( ~ ( ~ ( ( SV32
                   != ( pair_first @ SV22 ) )
                  | ! [SY83: $i,SY84: $i] :
                      ( ( SV22
                       != ( ordered_pair @ SY83 @ SY84 ) )
                      | ( SV32 = SY83 ) ) )
              | ~ ( ~ ! [SY85: $i,SY86: $i] :
                        ( ( SV22
                         != ( ordered_pair @ SY85 @ SY86 ) )
                        | ( SV32 = SY85 ) )
                  | ( SV32
                    = ( pair_first @ SV22 ) ) ) ) )
        = $true )
      | ( ( SV22
          = ( ordered_pair @ SV28 @ SV30 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[547]) ).

thf(550,plain,
    ! [SV29: $i,SV27: $i,SV21: $i,SV31: $i] :
      ( ( ( ~ ( ( SV31
               != ( pair_second @ SV21 ) )
              | ! [SY79: $i,SY80: $i] :
                  ( ( SV21
                   != ( ordered_pair @ SY79 @ SY80 ) )
                  | ( SV31 = SY80 ) ) )
          | ~ ( ~ ! [SY81: $i,SY82: $i] :
                    ( ( SV21
                     != ( ordered_pair @ SY81 @ SY82 ) )
                    | ( SV31 = SY82 ) )
              | ( SV31
                = ( pair_second @ SV21 ) ) ) )
        = $false )
      | ( ( SV21
          = ( ordered_pair @ SV27 @ SV29 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[548]) ).

thf(551,plain,
    ! [SV30: $i,SV28: $i,SV22: $i,SV32: $i] :
      ( ( ( ~ ( ( SV32
               != ( pair_first @ SV22 ) )
              | ! [SY83: $i,SY84: $i] :
                  ( ( SV22
                   != ( ordered_pair @ SY83 @ SY84 ) )
                  | ( SV32 = SY83 ) ) )
          | ~ ( ~ ! [SY85: $i,SY86: $i] :
                    ( ( SV22
                     != ( ordered_pair @ SY85 @ SY86 ) )
                    | ( SV32 = SY85 ) )
              | ( SV32
                = ( pair_first @ SV22 ) ) ) )
        = $false )
      | ( ( SV22
          = ( ordered_pair @ SV28 @ SV30 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[549]) ).

thf(552,plain,
    ! [SV29: $i,SV27: $i,SV21: $i,SV31: $i] :
      ( ( ( ~ ( ( SV31
               != ( pair_second @ SV21 ) )
              | ! [SY79: $i,SY80: $i] :
                  ( ( SV21
                   != ( ordered_pair @ SY79 @ SY80 ) )
                  | ( SV31 = SY80 ) ) ) )
        = $false )
      | ( ( SV21
          = ( ordered_pair @ SV27 @ SV29 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[550]) ).

thf(553,plain,
    ! [SV29: $i,SV27: $i,SV31: $i,SV21: $i] :
      ( ( ( ~ ( ~ ! [SY81: $i,SY82: $i] :
                    ( ( SV21
                     != ( ordered_pair @ SY81 @ SY82 ) )
                    | ( SV31 = SY82 ) )
              | ( SV31
                = ( pair_second @ SV21 ) ) ) )
        = $false )
      | ( ( SV21
          = ( ordered_pair @ SV27 @ SV29 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[550]) ).

thf(554,plain,
    ! [SV30: $i,SV28: $i,SV22: $i,SV32: $i] :
      ( ( ( ~ ( ( SV32
               != ( pair_first @ SV22 ) )
              | ! [SY83: $i,SY84: $i] :
                  ( ( SV22
                   != ( ordered_pair @ SY83 @ SY84 ) )
                  | ( SV32 = SY83 ) ) ) )
        = $false )
      | ( ( SV22
          = ( ordered_pair @ SV28 @ SV30 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[551]) ).

thf(555,plain,
    ! [SV30: $i,SV28: $i,SV32: $i,SV22: $i] :
      ( ( ( ~ ( ~ ! [SY85: $i,SY86: $i] :
                    ( ( SV22
                     != ( ordered_pair @ SY85 @ SY86 ) )
                    | ( SV32 = SY85 ) )
              | ( SV32
                = ( pair_first @ SV22 ) ) ) )
        = $false )
      | ( ( SV22
          = ( ordered_pair @ SV28 @ SV30 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[551]) ).

thf(556,plain,
    ! [SV29: $i,SV27: $i,SV21: $i,SV31: $i] :
      ( ( ( ( SV31
           != ( pair_second @ SV21 ) )
          | ! [SY79: $i,SY80: $i] :
              ( ( SV21
               != ( ordered_pair @ SY79 @ SY80 ) )
              | ( SV31 = SY80 ) ) )
        = $true )
      | ( ( SV21
          = ( ordered_pair @ SV27 @ SV29 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[552]) ).

thf(557,plain,
    ! [SV29: $i,SV27: $i,SV31: $i,SV21: $i] :
      ( ( ( ~ ! [SY81: $i,SY82: $i] :
                ( ( SV21
                 != ( ordered_pair @ SY81 @ SY82 ) )
                | ( SV31 = SY82 ) )
          | ( SV31
            = ( pair_second @ SV21 ) ) )
        = $true )
      | ( ( SV21
          = ( ordered_pair @ SV27 @ SV29 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[553]) ).

thf(558,plain,
    ! [SV30: $i,SV28: $i,SV22: $i,SV32: $i] :
      ( ( ( ( SV32
           != ( pair_first @ SV22 ) )
          | ! [SY83: $i,SY84: $i] :
              ( ( SV22
               != ( ordered_pair @ SY83 @ SY84 ) )
              | ( SV32 = SY83 ) ) )
        = $true )
      | ( ( SV22
          = ( ordered_pair @ SV28 @ SV30 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[554]) ).

thf(559,plain,
    ! [SV30: $i,SV28: $i,SV32: $i,SV22: $i] :
      ( ( ( ~ ! [SY85: $i,SY86: $i] :
                ( ( SV22
                 != ( ordered_pair @ SY85 @ SY86 ) )
                | ( SV32 = SY85 ) )
          | ( SV32
            = ( pair_first @ SV22 ) ) )
        = $true )
      | ( ( SV22
          = ( ordered_pair @ SV28 @ SV30 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[555]) ).

thf(560,plain,
    ! [SV29: $i,SV27: $i,SV21: $i,SV31: $i] :
      ( ( ( SV31
         != ( pair_second @ SV21 ) )
        = $true )
      | ( ( ! [SY79: $i,SY80: $i] :
              ( ( SV21
               != ( ordered_pair @ SY79 @ SY80 ) )
              | ( SV31 = SY80 ) ) )
        = $true )
      | ( ( SV21
          = ( ordered_pair @ SV27 @ SV29 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[556]) ).

thf(561,plain,
    ! [SV29: $i,SV27: $i,SV31: $i,SV21: $i] :
      ( ( ( ~ ! [SY81: $i,SY82: $i] :
                ( ( SV21
                 != ( ordered_pair @ SY81 @ SY82 ) )
                | ( SV31 = SY82 ) ) )
        = $true )
      | ( ( SV31
          = ( pair_second @ SV21 ) )
        = $true )
      | ( ( SV21
          = ( ordered_pair @ SV27 @ SV29 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[557]) ).

thf(562,plain,
    ! [SV30: $i,SV28: $i,SV22: $i,SV32: $i] :
      ( ( ( SV32
         != ( pair_first @ SV22 ) )
        = $true )
      | ( ( ! [SY83: $i,SY84: $i] :
              ( ( SV22
               != ( ordered_pair @ SY83 @ SY84 ) )
              | ( SV32 = SY83 ) ) )
        = $true )
      | ( ( SV22
          = ( ordered_pair @ SV28 @ SV30 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[558]) ).

thf(563,plain,
    ! [SV30: $i,SV28: $i,SV32: $i,SV22: $i] :
      ( ( ( ~ ! [SY85: $i,SY86: $i] :
                ( ( SV22
                 != ( ordered_pair @ SY85 @ SY86 ) )
                | ( SV32 = SY85 ) ) )
        = $true )
      | ( ( SV32
          = ( pair_first @ SV22 ) )
        = $true )
      | ( ( SV22
          = ( ordered_pair @ SV28 @ SV30 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[559]) ).

thf(564,plain,
    ! [SV29: $i,SV27: $i,SV21: $i,SV31: $i] :
      ( ( ( SV31
          = ( pair_second @ SV21 ) )
        = $false )
      | ( ( ! [SY79: $i,SY80: $i] :
              ( ( SV21
               != ( ordered_pair @ SY79 @ SY80 ) )
              | ( SV31 = SY80 ) ) )
        = $true )
      | ( ( SV21
          = ( ordered_pair @ SV27 @ SV29 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[560]) ).

thf(565,plain,
    ! [SV29: $i,SV27: $i,SV31: $i,SV21: $i] :
      ( ( ( ! [SY81: $i,SY82: $i] :
              ( ( SV21
               != ( ordered_pair @ SY81 @ SY82 ) )
              | ( SV31 = SY82 ) ) )
        = $false )
      | ( ( SV31
          = ( pair_second @ SV21 ) )
        = $true )
      | ( ( SV21
          = ( ordered_pair @ SV27 @ SV29 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[561]) ).

thf(566,plain,
    ! [SV30: $i,SV28: $i,SV22: $i,SV32: $i] :
      ( ( ( SV32
          = ( pair_first @ SV22 ) )
        = $false )
      | ( ( ! [SY83: $i,SY84: $i] :
              ( ( SV22
               != ( ordered_pair @ SY83 @ SY84 ) )
              | ( SV32 = SY83 ) ) )
        = $true )
      | ( ( SV22
          = ( ordered_pair @ SV28 @ SV30 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[562]) ).

thf(567,plain,
    ! [SV30: $i,SV28: $i,SV32: $i,SV22: $i] :
      ( ( ( ! [SY85: $i,SY86: $i] :
              ( ( SV22
               != ( ordered_pair @ SY85 @ SY86 ) )
              | ( SV32 = SY85 ) ) )
        = $false )
      | ( ( SV32
          = ( pair_first @ SV22 ) )
        = $true )
      | ( ( SV22
          = ( ordered_pair @ SV28 @ SV30 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[563]) ).

thf(568,plain,
    ! [SV29: $i,SV27: $i,SV31: $i,SV33: $i,SV21: $i] :
      ( ( ( ! [SY87: $i] :
              ( ( SV21
               != ( ordered_pair @ SV33 @ SY87 ) )
              | ( SV31 = SY87 ) ) )
        = $true )
      | ( ( SV31
          = ( pair_second @ SV21 ) )
        = $false )
      | ( ( SV21
          = ( ordered_pair @ SV27 @ SV29 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[564]) ).

thf(569,plain,
    ! [SV31: $i,SV27: $i,SV29: $i,SV21: $i] :
      ( ( ( ! [SY88: $i] :
              ( ( SV21
               != ( ordered_pair @ ( sK7_SY81 @ SV29 @ SV27 @ SV31 @ SV21 ) @ SY88 ) )
              | ( SV31 = SY88 ) ) )
        = $false )
      | ( ( SV31
          = ( pair_second @ SV21 ) )
        = $true )
      | ( ( SV21
          = ( ordered_pair @ SV27 @ SV29 ) )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[565]) ).

thf(570,plain,
    ! [SV30: $i,SV28: $i,SV32: $i,SV34: $i,SV22: $i] :
      ( ( ( ! [SY89: $i] :
              ( ( SV22
               != ( ordered_pair @ SV34 @ SY89 ) )
              | ( SV32 = SV34 ) ) )
        = $true )
      | ( ( SV32
          = ( pair_first @ SV22 ) )
        = $false )
      | ( ( SV22
          = ( ordered_pair @ SV28 @ SV30 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[566]) ).

thf(571,plain,
    ! [SV32: $i,SV28: $i,SV30: $i,SV22: $i] :
      ( ( ( ! [SY90: $i] :
              ( ( SV22
               != ( ordered_pair @ ( sK8_SY85 @ SV30 @ SV28 @ SV32 @ SV22 ) @ SY90 ) )
              | ( SV32
                = ( sK8_SY85 @ SV30 @ SV28 @ SV32 @ SV22 ) ) ) )
        = $false )
      | ( ( SV32
          = ( pair_first @ SV22 ) )
        = $true )
      | ( ( SV22
          = ( ordered_pair @ SV28 @ SV30 ) )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[567]) ).

thf(572,plain,
    ! [SV29: $i,SV27: $i,SV31: $i,SV35: $i,SV33: $i,SV21: $i] :
      ( ( ( ( SV21
           != ( ordered_pair @ SV33 @ SV35 ) )
          | ( SV31 = SV35 ) )
        = $true )
      | ( ( SV31
          = ( pair_second @ SV21 ) )
        = $false )
      | ( ( SV21
          = ( ordered_pair @ SV27 @ SV29 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[568]) ).

thf(573,plain,
    ! [SV31: $i,SV27: $i,SV29: $i,SV21: $i] :
      ( ( ( ( SV21
           != ( ordered_pair @ ( sK7_SY81 @ SV29 @ SV27 @ SV31 @ SV21 ) @ ( sK9_SY88 @ SV31 @ SV27 @ SV29 @ SV21 ) ) )
          | ( SV31
            = ( sK9_SY88 @ SV31 @ SV27 @ SV29 @ SV21 ) ) )
        = $false )
      | ( ( SV31
          = ( pair_second @ SV21 ) )
        = $true )
      | ( ( SV21
          = ( ordered_pair @ SV27 @ SV29 ) )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[569]) ).

thf(574,plain,
    ! [SV30: $i,SV28: $i,SV32: $i,SV36: $i,SV34: $i,SV22: $i] :
      ( ( ( ( SV22
           != ( ordered_pair @ SV34 @ SV36 ) )
          | ( SV32 = SV34 ) )
        = $true )
      | ( ( SV32
          = ( pair_first @ SV22 ) )
        = $false )
      | ( ( SV22
          = ( ordered_pair @ SV28 @ SV30 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[570]) ).

thf(575,plain,
    ! [SV32: $i,SV28: $i,SV30: $i,SV22: $i] :
      ( ( ( ( SV22
           != ( ordered_pair @ ( sK8_SY85 @ SV30 @ SV28 @ SV32 @ SV22 ) @ ( sK10_SY90 @ SV32 @ SV28 @ SV30 @ SV22 ) ) )
          | ( SV32
            = ( sK8_SY85 @ SV30 @ SV28 @ SV32 @ SV22 ) ) )
        = $false )
      | ( ( SV32
          = ( pair_first @ SV22 ) )
        = $true )
      | ( ( SV22
          = ( ordered_pair @ SV28 @ SV30 ) )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[571]) ).

thf(576,plain,
    ! [SV29: $i,SV27: $i,SV31: $i,SV35: $i,SV33: $i,SV21: $i] :
      ( ( ( SV21
         != ( ordered_pair @ SV33 @ SV35 ) )
        = $true )
      | ( ( SV31 = SV35 )
        = $true )
      | ( ( SV31
          = ( pair_second @ SV21 ) )
        = $false )
      | ( ( SV21
          = ( ordered_pair @ SV27 @ SV29 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[572]) ).

thf(577,plain,
    ! [SV31: $i,SV27: $i,SV29: $i,SV21: $i] :
      ( ( ( SV21
         != ( ordered_pair @ ( sK7_SY81 @ SV29 @ SV27 @ SV31 @ SV21 ) @ ( sK9_SY88 @ SV31 @ SV27 @ SV29 @ SV21 ) ) )
        = $false )
      | ( ( SV31
          = ( pair_second @ SV21 ) )
        = $true )
      | ( ( SV21
          = ( ordered_pair @ SV27 @ SV29 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[573]) ).

thf(578,plain,
    ! [SV21: $i,SV29: $i,SV27: $i,SV31: $i] :
      ( ( ( SV31
          = ( sK9_SY88 @ SV31 @ SV27 @ SV29 @ SV21 ) )
        = $false )
      | ( ( SV31
          = ( pair_second @ SV21 ) )
        = $true )
      | ( ( SV21
          = ( ordered_pair @ SV27 @ SV29 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[573]) ).

thf(579,plain,
    ! [SV30: $i,SV28: $i,SV32: $i,SV36: $i,SV34: $i,SV22: $i] :
      ( ( ( SV22
         != ( ordered_pair @ SV34 @ SV36 ) )
        = $true )
      | ( ( SV32 = SV34 )
        = $true )
      | ( ( SV32
          = ( pair_first @ SV22 ) )
        = $false )
      | ( ( SV22
          = ( ordered_pair @ SV28 @ SV30 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[574]) ).

thf(580,plain,
    ! [SV32: $i,SV28: $i,SV30: $i,SV22: $i] :
      ( ( ( SV22
         != ( ordered_pair @ ( sK8_SY85 @ SV30 @ SV28 @ SV32 @ SV22 ) @ ( sK10_SY90 @ SV32 @ SV28 @ SV30 @ SV22 ) ) )
        = $false )
      | ( ( SV32
          = ( pair_first @ SV22 ) )
        = $true )
      | ( ( SV22
          = ( ordered_pair @ SV28 @ SV30 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[575]) ).

thf(581,plain,
    ! [SV22: $i,SV28: $i,SV30: $i,SV32: $i] :
      ( ( ( SV32
          = ( sK8_SY85 @ SV30 @ SV28 @ SV32 @ SV22 ) )
        = $false )
      | ( ( SV32
          = ( pair_first @ SV22 ) )
        = $true )
      | ( ( SV22
          = ( ordered_pair @ SV28 @ SV30 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[575]) ).

thf(582,plain,
    ! [SV29: $i,SV27: $i,SV31: $i,SV35: $i,SV33: $i,SV21: $i] :
      ( ( ( SV21
          = ( ordered_pair @ SV33 @ SV35 ) )
        = $false )
      | ( ( SV31 = SV35 )
        = $true )
      | ( ( SV31
          = ( pair_second @ SV21 ) )
        = $false )
      | ( ( SV21
          = ( ordered_pair @ SV27 @ SV29 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[576]) ).

thf(583,plain,
    ! [SV31: $i,SV27: $i,SV29: $i,SV21: $i] :
      ( ( ( SV21
          = ( ordered_pair @ ( sK7_SY81 @ SV29 @ SV27 @ SV31 @ SV21 ) @ ( sK9_SY88 @ SV31 @ SV27 @ SV29 @ SV21 ) ) )
        = $true )
      | ( ( SV31
          = ( pair_second @ SV21 ) )
        = $true )
      | ( ( SV21
          = ( ordered_pair @ SV27 @ SV29 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[577]) ).

thf(584,plain,
    ! [SV30: $i,SV28: $i,SV32: $i,SV36: $i,SV34: $i,SV22: $i] :
      ( ( ( SV22
          = ( ordered_pair @ SV34 @ SV36 ) )
        = $false )
      | ( ( SV32 = SV34 )
        = $true )
      | ( ( SV32
          = ( pair_first @ SV22 ) )
        = $false )
      | ( ( SV22
          = ( ordered_pair @ SV28 @ SV30 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[579]) ).

thf(585,plain,
    ! [SV32: $i,SV28: $i,SV30: $i,SV22: $i] :
      ( ( ( SV22
          = ( ordered_pair @ ( sK8_SY85 @ SV30 @ SV28 @ SV32 @ SV22 ) @ ( sK10_SY90 @ SV32 @ SV28 @ SV30 @ SV22 ) ) )
        = $true )
      | ( ( SV32
          = ( pair_first @ SV22 ) )
        = $true )
      | ( ( SV22
          = ( ordered_pair @ SV28 @ SV30 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[580]) ).

thf(586,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[486,585,584,583,582,581,578,545,544,524,516,509,508,507,506,505,504,503,502,501,500,499,498,497,496,495,494,493,492,491,490,489,488,487]) ).

thf(587,plain,
    $false,
    inference(solved_all_splits,[solved_all_splits(join,[])],[586,482]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03  % Problem  : SEU267+2 : TPTP v9.3.1. Released v3.3.0.
% 0.00/0.04  % Command  : leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.10/0.23  % Computer : n015.cluster.edu
% 0.10/0.23  % Model    : x86_64 x86_64
% 0.10/0.23  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.23  % Memory   : 8046.5625MB
% 0.10/0.23  % OS       : Linux 6.8.0-71-generic
% 0.10/0.23  % CPULimit : 300
% 0.10/0.23  % WCLimit  : 300
% 0.10/0.23  % DateTime : Tue Oct  6 15:13:43 UTC 2026
% 0.10/0.23  % CPUTime  : 
% 0.10/0.23  Running leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p
% 1.12/0.56  ..
% 1.12/0.56  
% 1.12/0.56   No.of.Axioms: 28
% 1.12/0.56  
% 1.12/0.56   Length.of.Defs: 0
% 1.12/0.56  
% 1.12/0.56   Contains.Choice.Funs: false
% 1.12/0.56  ...........
% 1.12/0.56  
% 1.12/0.56  ********************************
% 1.12/0.56  *   All subproblems solved!    *
% 1.12/0.56  ********************************
% 1.12/0.56  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:1,axioms:28,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:586,loop_count:0,foatp_calls:1,translation:fof_full)
% 1.12/0.56  
% 1.12/0.56  %**** Beginning of derivation protocol ****
% 1.12/0.56  % SZS output start CNFRefutation
% See solution above
% 1.12/0.57  
% 1.12/0.57  %**** End of derivation protocol ****
% 1.12/0.57  %**** no. of clauses in derivation: 274 ****
% 1.12/0.57  %**** clause counter: 586 ****
% 1.12/0.57  
% 1.12/0.57  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:1,axioms:28,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:586,loop_count:0,foatp_calls:1,translation:fof_full)
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