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

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%------------------------------------------------------------------------------
% File     : LEO-II---2.3.1
% Problem  : SEU326+1 : 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 : n020.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 10:43:59 AM UTC 2026

% Result   : Theorem 0.57s 0.28s
% Output   : CNFRefutation 0.57s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   16
%            Number of leaves      :   16
% Syntax   : Number of formulae    :  272 ( 175 unt;   0 typ;   0 def)
%            Number of atoms       : 1327 ( 491 equ;   0 cnn)
%            Maximal formula atoms :    5 (   4 avg)
%            Number of connectives : 2141 ( 496   ~; 252   |;  40   &;1308   @)
%                                         (   4 <=>;  41  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    8 (   3 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   28 (  25 usr;   5 con; 0-2 aty)
%            Number of variables   :  433 (   0   ^; 421   !;  12   ?; 433   :)

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

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_in,type,
    in: $i > $i > $o ).

thf(tp_natural,type,
    natural: $i > $o ).

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

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

thf(tp_sK2_SY25,type,
    sK2_SY25: $i ).

thf(tp_sK3_SY28,type,
    sK3_SY28: $i > $i ).

thf(tp_sK4_SY36,type,
    sK4_SY36: $i > $i ).

thf(tp_sK5_SY27,type,
    sK5_SY27: $i > $i ).

thf(tp_sK6_SY41,type,
    sK6_SY41: $i > $i ).

thf(tp_sK7_SY47,type,
    sK7_SY47: $i > $i ).

thf(tp_sK8_SY42,type,
    sK8_SY42: $i > $i ).

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

thf(tp_v1_int_1,type,
    v1_int_1: $i > $o ).

thf(tp_v1_membered,type,
    v1_membered: $i > $o ).

thf(tp_v1_rat_1,type,
    v1_rat_1: $i > $o ).

thf(tp_v1_xcmplx_0,type,
    v1_xcmplx_0: $i > $o ).

thf(tp_v1_xreal_0,type,
    v1_xreal_0: $i > $o ).

thf(tp_v2_membered,type,
    v2_membered: $i > $o ).

thf(tp_v3_membered,type,
    v3_membered: $i > $o ).

thf(tp_v4_membered,type,
    v4_membered: $i > $o ).

thf(tp_v5_membered,type,
    v5_membered: $i > $o ).

thf(3,axiom,
    ! [A: $i] :
      ( ( empty @ A )
     => ( A = empty_set ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t6_boole) ).

thf(5,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( in @ A @ B )
        & ( element @ B @ ( powerset @ C ) ) )
     => ( element @ A @ C ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t4_subset) ).

thf(6,axiom,
    ! [A: $i,B: $i] :
      ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
     => ~ ( ( B != empty_set )
          & ( ( complements_of_subsets @ A @ B )
            = empty_set ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t46_setfam_1) ).

thf(7,axiom,
    ! [A: $i,B: $i] :
      ( ( element @ A @ ( powerset @ B ) )
    <=> ( subset @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t3_subset) ).

thf(9,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ( element @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t1_subset) ).

thf(11,axiom,
    ! [A: $i] :
    ? [B: $i] :
      ( ( element @ B @ ( powerset @ A ) )
      & ( empty @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc2_subset_1) ).

thf(12,axiom,
    ! [A: $i] :
      ( ~ ( empty @ A )
     => ? [B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
          & ~ ( empty @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc1_subset_1) ).

thf(14,axiom,
    ! [A: $i,B: $i] :
      ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
     => ( ( complements_of_subsets @ A @ ( complements_of_subsets @ A @ B ) )
        = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',involutiveness_k7_setfam_1) ).

thf(16,axiom,
    ! [A: $i] :
      ~ ( empty @ ( powerset @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc1_subset_1) ).

thf(17,axiom,
    ! [A: $i] :
    ? [B: $i] : ( element @ B @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',existence_m1_subset_1) ).

thf(18,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_m1_subset_1) ).

thf(19,axiom,
    ! [A: $i,B: $i] :
      ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
     => ( element @ ( complements_of_subsets @ A @ B ) @ ( powerset @ ( powerset @ A ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k7_setfam_1) ).

thf(20,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_zfmisc_1) ).

thf(21,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_xboole_0) ).

thf(30,axiom,
    ! [A: $i] :
      ( ( v1_membered @ A )
     => ! [B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
         => ( v1_membered @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',cc16_membered) ).

thf(38,conjecture,
    ! [A: $i,B: $i] :
      ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
     => ( ~ ( ( B != empty_set )
            & ( ( complements_of_subsets @ A @ B )
              = empty_set ) )
        & ~ ( ( ( complements_of_subsets @ A @ B )
             != empty_set )
            & ( B = empty_set ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t10_tops_2) ).

thf(39,negated_conjecture,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
         => ( ~ ( ( B != empty_set )
                & ( ( complements_of_subsets @ A @ B )
                  = empty_set ) )
            & ~ ( ( ( complements_of_subsets @ A @ B )
                 != empty_set )
                & ( B = empty_set ) ) ) ) )
    = $false ),
    inference(negate_conjecture,[status(cth)],[38]) ).

thf(40,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
         => ( ~ ( ( B != empty_set )
                & ( ( complements_of_subsets @ A @ B )
                  = empty_set ) )
            & ~ ( ( ( complements_of_subsets @ A @ B )
                 != empty_set )
                & ( B = empty_set ) ) ) ) )
    = $false ),
    inference(unfold_def,[status(thm)],[39]) ).

thf(41,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
         => ( A = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[3]) ).

thf(42,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( in @ A @ B )
            & ( element @ B @ ( powerset @ C ) ) )
         => ( element @ A @ C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[5]) ).

thf(43,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
         => ~ ( ( B != empty_set )
              & ( ( complements_of_subsets @ A @ B )
                = empty_set ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[6]) ).

thf(44,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ A @ ( powerset @ B ) )
        <=> ( subset @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[7]) ).

thf(45,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( element @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[9]) ).

thf(46,plain,
    ( ( ! [A: $i] :
        ? [B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
          & ( empty @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[11]) ).

thf(47,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
         => ? [B: $i] :
              ( ( element @ B @ ( powerset @ A ) )
              & ~ ( empty @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[12]) ).

thf(48,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
         => ( ( complements_of_subsets @ A @ ( complements_of_subsets @ A @ B ) )
            = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[14]) ).

thf(49,plain,
    ( ( ! [A: $i] :
          ~ ( empty @ ( powerset @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[16]) ).

thf(50,plain,
    ( ( ! [A: $i] :
        ? [B: $i] : ( element @ B @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[17]) ).

thf(51,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[18]) ).

thf(52,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
         => ( element @ ( complements_of_subsets @ A @ B ) @ ( powerset @ ( powerset @ A ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[19]) ).

thf(53,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[20]) ).

thf(54,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[21]) ).

thf(55,plain,
    ( ( ! [A: $i] :
          ( ( v1_membered @ A )
         => ! [B: $i] :
              ( ( element @ B @ ( powerset @ A ) )
             => ( v1_membered @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[30]) ).

thf(56,plain,
    ( ( ! [SY25: $i] :
          ( ( element @ SY25 @ ( powerset @ ( powerset @ sK1_A ) ) )
         => ( ~ ( ( SY25 != empty_set )
                & ( ( complements_of_subsets @ sK1_A @ SY25 )
                  = empty_set ) )
            & ~ ( ( ( complements_of_subsets @ sK1_A @ SY25 )
                 != empty_set )
                & ( SY25 = empty_set ) ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[40]) ).

thf(57,plain,
    ( ( ( element @ sK2_SY25 @ ( powerset @ ( powerset @ sK1_A ) ) )
     => ( ~ ( ( sK2_SY25 != empty_set )
            & ( ( complements_of_subsets @ sK1_A @ sK2_SY25 )
              = empty_set ) )
        & ~ ( ( ( complements_of_subsets @ sK1_A @ sK2_SY25 )
             != empty_set )
            & ( sK2_SY25 = empty_set ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[56]) ).

thf(58,plain,
    ( ( element @ sK2_SY25 @ ( powerset @ ( powerset @ sK1_A ) ) )
    = $true ),
    inference(standard_cnf,[status(thm)],[57]) ).

thf(59,plain,
    ( ( ~ ( ( sK2_SY25 != empty_set )
          & ( ( complements_of_subsets @ sK1_A @ sK2_SY25 )
            = empty_set ) )
      & ~ ( ( ( complements_of_subsets @ sK1_A @ sK2_SY25 )
           != empty_set )
          & ( sK2_SY25 = empty_set ) ) )
    = $false ),
    inference(standard_cnf,[status(thm)],[57]) ).

thf(60,plain,
    ( ( ~ ( ( sK2_SY25 != empty_set )
          & ( ( complements_of_subsets @ sK1_A @ sK2_SY25 )
            = empty_set ) ) )
    = $false ),
    inference(split_conjecture,[split_conjecture(split,[])],[59]) ).

thf(61,plain,
    ( ( ~ ( ( ( complements_of_subsets @ sK1_A @ sK2_SY25 )
           != empty_set )
          & ( sK2_SY25 = empty_set ) ) )
    = $false ),
    inference(split_conjecture,[split_conjecture(split,[])],[59]) ).

thf(62,plain,
    ( ( ( sK2_SY25 != empty_set )
      & ( ( complements_of_subsets @ sK1_A @ sK2_SY25 )
        = empty_set ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[60]) ).

thf(63,plain,
    ( ( ( ( complements_of_subsets @ sK1_A @ sK2_SY25 )
       != empty_set )
      & ( sK2_SY25 = empty_set ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[61]) ).

thf(64,plain,
    ( ( ! [A: $i] :
          ( ( v1_membered @ A )
         => ! [B: $i] :
              ( ( element @ B @ ( powerset @ A ) )
             => ( v1_membered @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[55]) ).

thf(65,plain,
    $true = $true,
    inference(copy,[status(thm)],[54]) ).

thf(66,plain,
    $true = $true,
    inference(copy,[status(thm)],[53]) ).

thf(67,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
         => ( element @ ( complements_of_subsets @ A @ B ) @ ( powerset @ ( powerset @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[52]) ).

thf(68,plain,
    $true = $true,
    inference(copy,[status(thm)],[51]) ).

thf(69,plain,
    ( ( ! [A: $i] :
        ? [B: $i] : ( element @ B @ A ) )
    = $true ),
    inference(copy,[status(thm)],[50]) ).

thf(70,plain,
    ( ( ! [A: $i] :
          ~ ( empty @ ( powerset @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[49]) ).

thf(71,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
         => ( ( complements_of_subsets @ A @ ( complements_of_subsets @ A @ B ) )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[48]) ).

thf(72,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
         => ? [B: $i] :
              ( ( element @ B @ ( powerset @ A ) )
              & ~ ( empty @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[47]) ).

thf(73,plain,
    ( ( ! [A: $i] :
        ? [B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
          & ( empty @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[46]) ).

thf(74,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( element @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[45]) ).

thf(75,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ A @ ( powerset @ B ) )
        <=> ( subset @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[44]) ).

thf(76,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
         => ~ ( ( B != empty_set )
              & ( ( complements_of_subsets @ A @ B )
                = empty_set ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[43]) ).

thf(77,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( in @ A @ B )
            & ( element @ B @ ( powerset @ C ) ) )
         => ( element @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[42]) ).

thf(78,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
         => ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[41]) ).

thf(79,plain,
    ( ( element @ sK2_SY25 @ ( powerset @ ( powerset @ sK1_A ) ) )
    = $true ),
    inference(copy,[status(thm)],[58]) ).

thf(80,plain,
    ( ( ( sK2_SY25 != empty_set )
      & ( ( complements_of_subsets @ sK1_A @ sK2_SY25 )
        = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[62]) ).

thf(81,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( v1_membered @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( element @ SX1 @ ( powerset @ SX0 ) )
              | ( v1_membered @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[64]) ).

thf(82,plain,
    ( ( ! [SX0: $i] :
          ( ~ ~ ( empty @ SX0 )
          | ~ ! [SX1: $i] :
                ~ ~ ( ~ ( element @ SX1 @ ( powerset @ SX0 ) )
                    | ~ ~ ( empty @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[72]) ).

thf(83,plain,
    ( ( ! [SX0: $i] :
          ~ ! [SX1: $i] :
              ~ ~ ( ~ ( element @ SX1 @ ( powerset @ SX0 ) )
                  | ~ ( empty @ SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[73]) ).

thf(84,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( element @ SX1 @ ( powerset @ ( powerset @ SX0 ) ) )
          | ( ( complements_of_subsets @ SX0 @ ( complements_of_subsets @ SX0 @ SX1 ) )
            = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[71]) ).

thf(85,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ~ ( element @ SX0 @ ( powerset @ SX1 ) )
                | ( subset @ SX0 @ SX1 ) )
            | ~ ( ~ ( subset @ SX0 @ SX1 )
                | ( element @ SX0 @ ( powerset @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[75]) ).

thf(86,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( element @ SX0 @ SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[74]) ).

thf(87,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( element @ SX1 @ ( powerset @ ( powerset @ SX0 ) ) )
          | ( element @ ( complements_of_subsets @ SX0 @ SX1 ) @ ( powerset @ ( powerset @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[67]) ).

thf(88,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( element @ SX1 @ ( powerset @ ( powerset @ SX0 ) ) )
          | ~ ~ ( ~ ( ( SX1 != empty_set ) )
                | ( ( complements_of_subsets @ SX0 @ SX1 )
                 != empty_set ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[76]) ).

thf(89,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ~ ( ~ ( in @ SX0 @ SX1 )
                | ~ ( element @ SX1 @ ( powerset @ SX2 ) ) )
          | ( element @ SX0 @ SX2 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[77]) ).

thf(90,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( empty @ SX0 )
          | ( SX0 = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[78]) ).

thf(91,plain,
    ( ( ! [SX0: $i] :
          ~ ! [SX1: $i] :
              ~ ( element @ SX1 @ SX0 ) )
    = $true ),
    inference(unfold_def,[status(thm)],[69]) ).

thf(92,plain,
    ( ( ~ ( ~ ( ( sK2_SY25 != empty_set ) )
          | ( ( complements_of_subsets @ sK1_A @ sK2_SY25 )
           != empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[80]) ).

thf(93,plain,
    ! [SV1: $i] :
      ( ( ~ ( empty @ ( powerset @ SV1 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[70]) ).

thf(94,plain,
    ! [SV2: $i] :
      ( ( ~ ( v1_membered @ SV2 )
        | ! [SY26: $i] :
            ( ~ ( element @ SY26 @ ( powerset @ SV2 ) )
            | ( v1_membered @ SY26 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[81]) ).

thf(95,plain,
    ! [SV3: $i] :
      ( ( ~ ~ ( empty @ SV3 )
        | ~ ! [SY27: $i] :
              ~ ~ ( ~ ( element @ SY27 @ ( powerset @ SV3 ) )
                  | ~ ~ ( empty @ SY27 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[82]) ).

thf(96,plain,
    ! [SV4: $i] :
      ( ( ~ ! [SY28: $i] :
              ~ ~ ( ~ ( element @ SY28 @ ( powerset @ SV4 ) )
                  | ~ ( empty @ SY28 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[83]) ).

thf(97,plain,
    ! [SV5: $i] :
      ( ( ! [SY29: $i] :
            ( ~ ( element @ SY29 @ ( powerset @ ( powerset @ SV5 ) ) )
            | ( ( complements_of_subsets @ SV5 @ ( complements_of_subsets @ SV5 @ SY29 ) )
              = SY29 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[84]) ).

thf(98,plain,
    ! [SV6: $i] :
      ( ( ! [SY30: $i] :
            ~ ( ~ ( ~ ( element @ SV6 @ ( powerset @ SY30 ) )
                  | ( subset @ SV6 @ SY30 ) )
              | ~ ( ~ ( subset @ SV6 @ SY30 )
                  | ( element @ SV6 @ ( powerset @ SY30 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[85]) ).

thf(99,plain,
    ! [SV7: $i] :
      ( ( ! [SY31: $i] :
            ( ~ ( in @ SV7 @ SY31 )
            | ( element @ SV7 @ SY31 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[86]) ).

thf(100,plain,
    ! [SV8: $i] :
      ( ( ! [SY32: $i] :
            ( ~ ( element @ SY32 @ ( powerset @ ( powerset @ SV8 ) ) )
            | ( element @ ( complements_of_subsets @ SV8 @ SY32 ) @ ( powerset @ ( powerset @ SV8 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[87]) ).

thf(101,plain,
    ! [SV9: $i] :
      ( ( ! [SY33: $i] :
            ( ~ ( element @ SY33 @ ( powerset @ ( powerset @ SV9 ) ) )
            | ~ ~ ( ~ ( ( SY33 != empty_set ) )
                  | ( ( complements_of_subsets @ SV9 @ SY33 )
                   != empty_set ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[88]) ).

thf(102,plain,
    ! [SV10: $i] :
      ( ( ! [SY34: $i,SY35: $i] :
            ( ~ ~ ( ~ ( in @ SV10 @ SY34 )
                  | ~ ( element @ SY34 @ ( powerset @ SY35 ) ) )
            | ( element @ SV10 @ SY35 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[89]) ).

thf(103,plain,
    ! [SV11: $i] :
      ( ( ~ ( empty @ SV11 )
        | ( SV11 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[90]) ).

thf(104,plain,
    ! [SV12: $i] :
      ( ( ~ ! [SY36: $i] :
              ~ ( element @ SY36 @ SV12 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[91]) ).

thf(105,plain,
    ( ( ~ ( ( sK2_SY25 != empty_set ) )
      | ( ( complements_of_subsets @ sK1_A @ sK2_SY25 )
       != empty_set ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[92]) ).

thf(106,plain,
    ! [SV1: $i] :
      ( ( empty @ ( powerset @ SV1 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[93]) ).

thf(107,plain,
    ! [SV2: $i] :
      ( ( ( ~ ( v1_membered @ SV2 ) )
        = $true )
      | ( ( ! [SY26: $i] :
              ( ~ ( element @ SY26 @ ( powerset @ SV2 ) )
              | ( v1_membered @ SY26 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[94]) ).

thf(108,plain,
    ! [SV3: $i] :
      ( ( ( ~ ~ ( empty @ SV3 ) )
        = $true )
      | ( ( ~ ! [SY27: $i] :
                ~ ~ ( ~ ( element @ SY27 @ ( powerset @ SV3 ) )
                    | ~ ~ ( empty @ SY27 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[95]) ).

thf(109,plain,
    ! [SV4: $i] :
      ( ( ! [SY28: $i] :
            ~ ~ ( ~ ( element @ SY28 @ ( powerset @ SV4 ) )
                | ~ ( empty @ SY28 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[96]) ).

thf(110,plain,
    ! [SV5: $i,SV13: $i] :
      ( ( ~ ( element @ SV13 @ ( powerset @ ( powerset @ SV5 ) ) )
        | ( ( complements_of_subsets @ SV5 @ ( complements_of_subsets @ SV5 @ SV13 ) )
          = SV13 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[97]) ).

thf(111,plain,
    ! [SV14: $i,SV6: $i] :
      ( ( ~ ( ~ ( ~ ( element @ SV6 @ ( powerset @ SV14 ) )
                | ( subset @ SV6 @ SV14 ) )
            | ~ ( ~ ( subset @ SV6 @ SV14 )
                | ( element @ SV6 @ ( powerset @ SV14 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[98]) ).

thf(112,plain,
    ! [SV15: $i,SV7: $i] :
      ( ( ~ ( in @ SV7 @ SV15 )
        | ( element @ SV7 @ SV15 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[99]) ).

thf(113,plain,
    ! [SV8: $i,SV16: $i] :
      ( ( ~ ( element @ SV16 @ ( powerset @ ( powerset @ SV8 ) ) )
        | ( element @ ( complements_of_subsets @ SV8 @ SV16 ) @ ( powerset @ ( powerset @ SV8 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[100]) ).

thf(114,plain,
    ! [SV9: $i,SV17: $i] :
      ( ( ~ ( element @ SV17 @ ( powerset @ ( powerset @ SV9 ) ) )
        | ~ ~ ( ~ ( ( SV17 != empty_set ) )
              | ( ( complements_of_subsets @ SV9 @ SV17 )
               != empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[101]) ).

thf(115,plain,
    ! [SV18: $i,SV10: $i] :
      ( ( ! [SY37: $i] :
            ( ~ ~ ( ~ ( in @ SV10 @ SV18 )
                  | ~ ( element @ SV18 @ ( powerset @ SY37 ) ) )
            | ( element @ SV10 @ SY37 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[102]) ).

thf(116,plain,
    ! [SV11: $i] :
      ( ( ( ~ ( empty @ SV11 ) )
        = $true )
      | ( ( SV11 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[103]) ).

thf(117,plain,
    ! [SV12: $i] :
      ( ( ! [SY36: $i] :
            ~ ( element @ SY36 @ SV12 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[104]) ).

thf(118,plain,
    ( ( ~ ( ( sK2_SY25 != empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[105]) ).

thf(119,plain,
    ( ( ( complements_of_subsets @ sK1_A @ sK2_SY25 )
     != empty_set )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[105]) ).

thf(120,plain,
    ! [SV2: $i] :
      ( ( ( v1_membered @ SV2 )
        = $false )
      | ( ( ! [SY26: $i] :
              ( ~ ( element @ SY26 @ ( powerset @ SV2 ) )
              | ( v1_membered @ SY26 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[107]) ).

thf(121,plain,
    ! [SV3: $i] :
      ( ( ( ~ ( empty @ SV3 ) )
        = $false )
      | ( ( ~ ! [SY27: $i] :
                ~ ~ ( ~ ( element @ SY27 @ ( powerset @ SV3 ) )
                    | ~ ~ ( empty @ SY27 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[108]) ).

thf(122,plain,
    ! [SV4: $i] :
      ( ( ~ ~ ( ~ ( element @ ( sK3_SY28 @ SV4 ) @ ( powerset @ SV4 ) )
              | ~ ( empty @ ( sK3_SY28 @ SV4 ) ) ) )
      = $false ),
    inference(extcnf_forall_neg,[status(esa)],[109]) ).

thf(123,plain,
    ! [SV5: $i,SV13: $i] :
      ( ( ( ~ ( element @ SV13 @ ( powerset @ ( powerset @ SV5 ) ) ) )
        = $true )
      | ( ( ( complements_of_subsets @ SV5 @ ( complements_of_subsets @ SV5 @ SV13 ) )
          = SV13 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[110]) ).

thf(124,plain,
    ! [SV14: $i,SV6: $i] :
      ( ( ~ ( ~ ( element @ SV6 @ ( powerset @ SV14 ) )
            | ( subset @ SV6 @ SV14 ) )
        | ~ ( ~ ( subset @ SV6 @ SV14 )
            | ( element @ SV6 @ ( powerset @ SV14 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[111]) ).

thf(125,plain,
    ! [SV15: $i,SV7: $i] :
      ( ( ( ~ ( in @ SV7 @ SV15 ) )
        = $true )
      | ( ( element @ SV7 @ SV15 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[112]) ).

thf(126,plain,
    ! [SV8: $i,SV16: $i] :
      ( ( ( ~ ( element @ SV16 @ ( powerset @ ( powerset @ SV8 ) ) ) )
        = $true )
      | ( ( element @ ( complements_of_subsets @ SV8 @ SV16 ) @ ( powerset @ ( powerset @ SV8 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[113]) ).

thf(127,plain,
    ! [SV9: $i,SV17: $i] :
      ( ( ( ~ ( element @ SV17 @ ( powerset @ ( powerset @ SV9 ) ) ) )
        = $true )
      | ( ( ~ ~ ( ~ ( ( SV17 != empty_set ) )
                | ( ( complements_of_subsets @ SV9 @ SV17 )
                 != empty_set ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[114]) ).

thf(128,plain,
    ! [SV19: $i,SV18: $i,SV10: $i] :
      ( ( ~ ~ ( ~ ( in @ SV10 @ SV18 )
              | ~ ( element @ SV18 @ ( powerset @ SV19 ) ) )
        | ( element @ SV10 @ SV19 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[115]) ).

thf(129,plain,
    ! [SV11: $i] :
      ( ( ( empty @ SV11 )
        = $false )
      | ( ( SV11 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[116]) ).

thf(130,plain,
    ! [SV12: $i] :
      ( ( ~ ( element @ ( sK4_SY36 @ SV12 ) @ SV12 ) )
      = $false ),
    inference(extcnf_forall_neg,[status(esa)],[117]) ).

thf(131,plain,
    ( ( sK2_SY25 != empty_set )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[118]) ).

thf(132,plain,
    ( ( ( complements_of_subsets @ sK1_A @ sK2_SY25 )
      = empty_set )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[119]) ).

thf(133,plain,
    ! [SV2: $i,SV20: $i] :
      ( ( ( ~ ( element @ SV20 @ ( powerset @ SV2 ) )
          | ( v1_membered @ SV20 ) )
        = $true )
      | ( ( v1_membered @ SV2 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[120]) ).

thf(134,plain,
    ! [SV3: $i] :
      ( ( ( empty @ SV3 )
        = $true )
      | ( ( ~ ! [SY27: $i] :
                ~ ~ ( ~ ( element @ SY27 @ ( powerset @ SV3 ) )
                    | ~ ~ ( empty @ SY27 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[121]) ).

thf(135,plain,
    ! [SV4: $i] :
      ( ( ~ ( ~ ( element @ ( sK3_SY28 @ SV4 ) @ ( powerset @ SV4 ) )
            | ~ ( empty @ ( sK3_SY28 @ SV4 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[122]) ).

thf(136,plain,
    ! [SV5: $i,SV13: $i] :
      ( ( ( element @ SV13 @ ( powerset @ ( powerset @ SV5 ) ) )
        = $false )
      | ( ( ( complements_of_subsets @ SV5 @ ( complements_of_subsets @ SV5 @ SV13 ) )
          = SV13 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[123]) ).

thf(137,plain,
    ! [SV14: $i,SV6: $i] :
      ( ( ~ ( ~ ( element @ SV6 @ ( powerset @ SV14 ) )
            | ( subset @ SV6 @ SV14 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[124]) ).

thf(138,plain,
    ! [SV14: $i,SV6: $i] :
      ( ( ~ ( ~ ( subset @ SV6 @ SV14 )
            | ( element @ SV6 @ ( powerset @ SV14 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[124]) ).

thf(139,plain,
    ! [SV15: $i,SV7: $i] :
      ( ( ( in @ SV7 @ SV15 )
        = $false )
      | ( ( element @ SV7 @ SV15 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[125]) ).

thf(140,plain,
    ! [SV8: $i,SV16: $i] :
      ( ( ( element @ SV16 @ ( powerset @ ( powerset @ SV8 ) ) )
        = $false )
      | ( ( element @ ( complements_of_subsets @ SV8 @ SV16 ) @ ( powerset @ ( powerset @ SV8 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[126]) ).

thf(141,plain,
    ! [SV9: $i,SV17: $i] :
      ( ( ( element @ SV17 @ ( powerset @ ( powerset @ SV9 ) ) )
        = $false )
      | ( ( ~ ~ ( ~ ( ( SV17 != empty_set ) )
                | ( ( complements_of_subsets @ SV9 @ SV17 )
                 != empty_set ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[127]) ).

thf(142,plain,
    ! [SV19: $i,SV18: $i,SV10: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV10 @ SV18 )
                | ~ ( element @ SV18 @ ( powerset @ SV19 ) ) ) )
        = $true )
      | ( ( element @ SV10 @ SV19 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[128]) ).

thf(143,plain,
    ! [SV12: $i] :
      ( ( element @ ( sK4_SY36 @ SV12 ) @ SV12 )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[130]) ).

thf(144,plain,
    ( ( sK2_SY25 = empty_set )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[131]) ).

thf(145,plain,
    ! [SV2: $i,SV20: $i] :
      ( ( ( ~ ( element @ SV20 @ ( powerset @ SV2 ) ) )
        = $true )
      | ( ( v1_membered @ SV20 )
        = $true )
      | ( ( v1_membered @ SV2 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[133]) ).

thf(146,plain,
    ! [SV3: $i] :
      ( ( ( ! [SY27: $i] :
              ~ ~ ( ~ ( element @ SY27 @ ( powerset @ SV3 ) )
                  | ~ ~ ( empty @ SY27 ) ) )
        = $false )
      | ( ( empty @ SV3 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[134]) ).

thf(147,plain,
    ! [SV4: $i] :
      ( ( ~ ( element @ ( sK3_SY28 @ SV4 ) @ ( powerset @ SV4 ) )
        | ~ ( empty @ ( sK3_SY28 @ SV4 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[135]) ).

thf(148,plain,
    ! [SV14: $i,SV6: $i] :
      ( ( ~ ( element @ SV6 @ ( powerset @ SV14 ) )
        | ( subset @ SV6 @ SV14 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[137]) ).

thf(149,plain,
    ! [SV14: $i,SV6: $i] :
      ( ( ~ ( subset @ SV6 @ SV14 )
        | ( element @ SV6 @ ( powerset @ SV14 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[138]) ).

thf(150,plain,
    ! [SV9: $i,SV17: $i] :
      ( ( ( ~ ( ~ ( ( SV17 != empty_set ) )
              | ( ( complements_of_subsets @ SV9 @ SV17 )
               != empty_set ) ) )
        = $false )
      | ( ( element @ SV17 @ ( powerset @ ( powerset @ SV9 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[141]) ).

thf(151,plain,
    ! [SV19: $i,SV18: $i,SV10: $i] :
      ( ( ( ~ ( ~ ( in @ SV10 @ SV18 )
              | ~ ( element @ SV18 @ ( powerset @ SV19 ) ) ) )
        = $false )
      | ( ( element @ SV10 @ SV19 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[142]) ).

thf(152,plain,
    ! [SV2: $i,SV20: $i] :
      ( ( ( element @ SV20 @ ( powerset @ SV2 ) )
        = $false )
      | ( ( v1_membered @ SV20 )
        = $true )
      | ( ( v1_membered @ SV2 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[145]) ).

thf(153,plain,
    ! [SV3: $i] :
      ( ( ( ~ ~ ( ~ ( element @ ( sK5_SY27 @ SV3 ) @ ( powerset @ SV3 ) )
                | ~ ~ ( empty @ ( sK5_SY27 @ SV3 ) ) ) )
        = $false )
      | ( ( empty @ SV3 )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[146]) ).

thf(154,plain,
    ! [SV4: $i] :
      ( ( ~ ( element @ ( sK3_SY28 @ SV4 ) @ ( powerset @ SV4 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[147]) ).

thf(155,plain,
    ! [SV4: $i] :
      ( ( ~ ( empty @ ( sK3_SY28 @ SV4 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[147]) ).

thf(156,plain,
    ! [SV14: $i,SV6: $i] :
      ( ( ( ~ ( element @ SV6 @ ( powerset @ SV14 ) ) )
        = $true )
      | ( ( subset @ SV6 @ SV14 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[148]) ).

thf(157,plain,
    ! [SV14: $i,SV6: $i] :
      ( ( ( ~ ( subset @ SV6 @ SV14 ) )
        = $true )
      | ( ( element @ SV6 @ ( powerset @ SV14 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[149]) ).

thf(158,plain,
    ! [SV9: $i,SV17: $i] :
      ( ( ( ~ ( ( SV17 != empty_set ) )
          | ( ( complements_of_subsets @ SV9 @ SV17 )
           != empty_set ) )
        = $true )
      | ( ( element @ SV17 @ ( powerset @ ( powerset @ SV9 ) ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[150]) ).

thf(159,plain,
    ! [SV19: $i,SV18: $i,SV10: $i] :
      ( ( ( ~ ( in @ SV10 @ SV18 )
          | ~ ( element @ SV18 @ ( powerset @ SV19 ) ) )
        = $true )
      | ( ( element @ SV10 @ SV19 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[151]) ).

thf(160,plain,
    ! [SV3: $i] :
      ( ( ( ~ ( ~ ( element @ ( sK5_SY27 @ SV3 ) @ ( powerset @ SV3 ) )
              | ~ ~ ( empty @ ( sK5_SY27 @ SV3 ) ) ) )
        = $true )
      | ( ( empty @ SV3 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[153]) ).

thf(161,plain,
    ! [SV4: $i] :
      ( ( element @ ( sK3_SY28 @ SV4 ) @ ( powerset @ SV4 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[154]) ).

thf(162,plain,
    ! [SV4: $i] :
      ( ( empty @ ( sK3_SY28 @ SV4 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[155]) ).

thf(163,plain,
    ! [SV14: $i,SV6: $i] :
      ( ( ( element @ SV6 @ ( powerset @ SV14 ) )
        = $false )
      | ( ( subset @ SV6 @ SV14 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[156]) ).

thf(164,plain,
    ! [SV14: $i,SV6: $i] :
      ( ( ( subset @ SV6 @ SV14 )
        = $false )
      | ( ( element @ SV6 @ ( powerset @ SV14 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[157]) ).

thf(165,plain,
    ! [SV9: $i,SV17: $i] :
      ( ( ( ~ ( ( SV17 != empty_set ) ) )
        = $true )
      | ( ( ( complements_of_subsets @ SV9 @ SV17 )
         != empty_set )
        = $true )
      | ( ( element @ SV17 @ ( powerset @ ( powerset @ SV9 ) ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[158]) ).

thf(166,plain,
    ! [SV19: $i,SV18: $i,SV10: $i] :
      ( ( ( ~ ( in @ SV10 @ SV18 ) )
        = $true )
      | ( ( ~ ( element @ SV18 @ ( powerset @ SV19 ) ) )
        = $true )
      | ( ( element @ SV10 @ SV19 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[159]) ).

thf(167,plain,
    ! [SV3: $i] :
      ( ( ( ~ ( element @ ( sK5_SY27 @ SV3 ) @ ( powerset @ SV3 ) )
          | ~ ~ ( empty @ ( sK5_SY27 @ SV3 ) ) )
        = $false )
      | ( ( empty @ SV3 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[160]) ).

thf(168,plain,
    ! [SV9: $i,SV17: $i] :
      ( ( ( SV17 != empty_set )
        = $false )
      | ( ( ( complements_of_subsets @ SV9 @ SV17 )
         != empty_set )
        = $true )
      | ( ( element @ SV17 @ ( powerset @ ( powerset @ SV9 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[165]) ).

thf(169,plain,
    ! [SV19: $i,SV18: $i,SV10: $i] :
      ( ( ( in @ SV10 @ SV18 )
        = $false )
      | ( ( ~ ( element @ SV18 @ ( powerset @ SV19 ) ) )
        = $true )
      | ( ( element @ SV10 @ SV19 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[166]) ).

thf(170,plain,
    ! [SV3: $i] :
      ( ( ( ~ ( element @ ( sK5_SY27 @ SV3 ) @ ( powerset @ SV3 ) ) )
        = $false )
      | ( ( empty @ SV3 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[167]) ).

thf(171,plain,
    ! [SV3: $i] :
      ( ( ( ~ ~ ( empty @ ( sK5_SY27 @ SV3 ) ) )
        = $false )
      | ( ( empty @ SV3 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[167]) ).

thf(172,plain,
    ! [SV9: $i,SV17: $i] :
      ( ( ( SV17 = empty_set )
        = $true )
      | ( ( ( complements_of_subsets @ SV9 @ SV17 )
         != empty_set )
        = $true )
      | ( ( element @ SV17 @ ( powerset @ ( powerset @ SV9 ) ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[168]) ).

thf(173,plain,
    ! [SV10: $i,SV19: $i,SV18: $i] :
      ( ( ( element @ SV18 @ ( powerset @ SV19 ) )
        = $false )
      | ( ( in @ SV10 @ SV18 )
        = $false )
      | ( ( element @ SV10 @ SV19 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[169]) ).

thf(174,plain,
    ! [SV3: $i] :
      ( ( ( element @ ( sK5_SY27 @ SV3 ) @ ( powerset @ SV3 ) )
        = $true )
      | ( ( empty @ SV3 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[170]) ).

thf(175,plain,
    ! [SV3: $i] :
      ( ( ( ~ ( empty @ ( sK5_SY27 @ SV3 ) ) )
        = $true )
      | ( ( empty @ SV3 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[171]) ).

thf(176,plain,
    ! [SV17: $i,SV9: $i] :
      ( ( ( ( complements_of_subsets @ SV9 @ SV17 )
          = empty_set )
        = $false )
      | ( ( SV17 = empty_set )
        = $true )
      | ( ( element @ SV17 @ ( powerset @ ( powerset @ SV9 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[172]) ).

thf(177,plain,
    ! [SV3: $i] :
      ( ( ( empty @ ( sK5_SY27 @ SV3 ) )
        = $false )
      | ( ( empty @ SV3 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[175]) ).

thf(178,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[65,177,176,174,173,164,163,162,161,152,144,143,140,139,136,132,129,106,79,68,66]) ).

thf(179,plain,
    ( ( ! [A: $i] :
          ( ( v1_membered @ A )
         => ! [B: $i] :
              ( ( element @ B @ ( powerset @ A ) )
             => ( v1_membered @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[55]) ).

thf(180,plain,
    $true = $true,
    inference(copy,[status(thm)],[54]) ).

thf(181,plain,
    $true = $true,
    inference(copy,[status(thm)],[53]) ).

thf(182,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
         => ( element @ ( complements_of_subsets @ A @ B ) @ ( powerset @ ( powerset @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[52]) ).

thf(183,plain,
    $true = $true,
    inference(copy,[status(thm)],[51]) ).

thf(184,plain,
    ( ( ! [A: $i] :
        ? [B: $i] : ( element @ B @ A ) )
    = $true ),
    inference(copy,[status(thm)],[50]) ).

thf(185,plain,
    ( ( ! [A: $i] :
          ~ ( empty @ ( powerset @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[49]) ).

thf(186,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
         => ( ( complements_of_subsets @ A @ ( complements_of_subsets @ A @ B ) )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[48]) ).

thf(187,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
         => ? [B: $i] :
              ( ( element @ B @ ( powerset @ A ) )
              & ~ ( empty @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[47]) ).

thf(188,plain,
    ( ( ! [A: $i] :
        ? [B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
          & ( empty @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[46]) ).

thf(189,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( element @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[45]) ).

thf(190,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ A @ ( powerset @ B ) )
        <=> ( subset @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[44]) ).

thf(191,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
         => ~ ( ( B != empty_set )
              & ( ( complements_of_subsets @ A @ B )
                = empty_set ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[43]) ).

thf(192,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( in @ A @ B )
            & ( element @ B @ ( powerset @ C ) ) )
         => ( element @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[42]) ).

thf(193,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
         => ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[41]) ).

thf(194,plain,
    ( ( element @ sK2_SY25 @ ( powerset @ ( powerset @ sK1_A ) ) )
    = $true ),
    inference(copy,[status(thm)],[58]) ).

thf(195,plain,
    ( ( ( ( complements_of_subsets @ sK1_A @ sK2_SY25 )
       != empty_set )
      & ( sK2_SY25 = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[63]) ).

thf(196,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( element @ SX1 @ ( powerset @ ( powerset @ SX0 ) ) )
          | ~ ~ ( ~ ( ( SX1 != empty_set ) )
                | ( ( complements_of_subsets @ SX0 @ SX1 )
                 != empty_set ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[191]) ).

thf(197,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( empty @ SX0 )
          | ( SX0 = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[193]) ).

thf(198,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ~ ( element @ SX0 @ ( powerset @ SX1 ) )
                | ( subset @ SX0 @ SX1 ) )
            | ~ ( ~ ( subset @ SX0 @ SX1 )
                | ( element @ SX0 @ ( powerset @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[190]) ).

thf(199,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( v1_membered @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( element @ SX1 @ ( powerset @ SX0 ) )
              | ( v1_membered @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[179]) ).

thf(200,plain,
    ( ( ! [SX0: $i] :
          ~ ! [SX1: $i] :
              ~ ( element @ SX1 @ SX0 ) )
    = $true ),
    inference(unfold_def,[status(thm)],[184]) ).

thf(201,plain,
    ( ( ! [SX0: $i] :
          ( ~ ~ ( empty @ SX0 )
          | ~ ! [SX1: $i] :
                ~ ~ ( ~ ( element @ SX1 @ ( powerset @ SX0 ) )
                    | ~ ~ ( empty @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[187]) ).

thf(202,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ~ ( ~ ( in @ SX0 @ SX1 )
                | ~ ( element @ SX1 @ ( powerset @ SX2 ) ) )
          | ( element @ SX0 @ SX2 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[192]) ).

thf(203,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( element @ SX1 @ ( powerset @ ( powerset @ SX0 ) ) )
          | ( ( complements_of_subsets @ SX0 @ ( complements_of_subsets @ SX0 @ SX1 ) )
            = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[186]) ).

thf(204,plain,
    ( ( ~ ( ~ ( ( ( complements_of_subsets @ sK1_A @ sK2_SY25 )
               != empty_set ) )
          | ( sK2_SY25 != empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[195]) ).

thf(205,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( element @ SX0 @ SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[189]) ).

thf(206,plain,
    ( ( ! [SX0: $i] :
          ~ ! [SX1: $i] :
              ~ ~ ( ~ ( element @ SX1 @ ( powerset @ SX0 ) )
                  | ~ ( empty @ SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[188]) ).

thf(207,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( element @ SX1 @ ( powerset @ ( powerset @ SX0 ) ) )
          | ( element @ ( complements_of_subsets @ SX0 @ SX1 ) @ ( powerset @ ( powerset @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[182]) ).

thf(208,plain,
    ! [SV21: $i] :
      ( ( ~ ( empty @ ( powerset @ SV21 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[185]) ).

thf(209,plain,
    ! [SV22: $i] :
      ( ( ! [SY38: $i] :
            ( ~ ( element @ SY38 @ ( powerset @ ( powerset @ SV22 ) ) )
            | ~ ~ ( ~ ( ( SY38 != empty_set ) )
                  | ( ( complements_of_subsets @ SV22 @ SY38 )
                   != empty_set ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[196]) ).

thf(210,plain,
    ! [SV23: $i] :
      ( ( ~ ( empty @ SV23 )
        | ( SV23 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[197]) ).

thf(211,plain,
    ! [SV24: $i] :
      ( ( ! [SY39: $i] :
            ~ ( ~ ( ~ ( element @ SV24 @ ( powerset @ SY39 ) )
                  | ( subset @ SV24 @ SY39 ) )
              | ~ ( ~ ( subset @ SV24 @ SY39 )
                  | ( element @ SV24 @ ( powerset @ SY39 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[198]) ).

thf(212,plain,
    ! [SV25: $i] :
      ( ( ~ ( v1_membered @ SV25 )
        | ! [SY40: $i] :
            ( ~ ( element @ SY40 @ ( powerset @ SV25 ) )
            | ( v1_membered @ SY40 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[199]) ).

thf(213,plain,
    ! [SV26: $i] :
      ( ( ~ ! [SY41: $i] :
              ~ ( element @ SY41 @ SV26 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[200]) ).

thf(214,plain,
    ! [SV27: $i] :
      ( ( ~ ~ ( empty @ SV27 )
        | ~ ! [SY42: $i] :
              ~ ~ ( ~ ( element @ SY42 @ ( powerset @ SV27 ) )
                  | ~ ~ ( empty @ SY42 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[201]) ).

thf(215,plain,
    ! [SV28: $i] :
      ( ( ! [SY43: $i,SY44: $i] :
            ( ~ ~ ( ~ ( in @ SV28 @ SY43 )
                  | ~ ( element @ SY43 @ ( powerset @ SY44 ) ) )
            | ( element @ SV28 @ SY44 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[202]) ).

thf(216,plain,
    ! [SV29: $i] :
      ( ( ! [SY45: $i] :
            ( ~ ( element @ SY45 @ ( powerset @ ( powerset @ SV29 ) ) )
            | ( ( complements_of_subsets @ SV29 @ ( complements_of_subsets @ SV29 @ SY45 ) )
              = SY45 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[203]) ).

thf(217,plain,
    ( ( ~ ( ( ( complements_of_subsets @ sK1_A @ sK2_SY25 )
           != empty_set ) )
      | ( sK2_SY25 != empty_set ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[204]) ).

thf(218,plain,
    ! [SV30: $i] :
      ( ( ! [SY46: $i] :
            ( ~ ( in @ SV30 @ SY46 )
            | ( element @ SV30 @ SY46 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[205]) ).

thf(219,plain,
    ! [SV31: $i] :
      ( ( ~ ! [SY47: $i] :
              ~ ~ ( ~ ( element @ SY47 @ ( powerset @ SV31 ) )
                  | ~ ( empty @ SY47 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[206]) ).

thf(220,plain,
    ! [SV32: $i] :
      ( ( ! [SY48: $i] :
            ( ~ ( element @ SY48 @ ( powerset @ ( powerset @ SV32 ) ) )
            | ( element @ ( complements_of_subsets @ SV32 @ SY48 ) @ ( powerset @ ( powerset @ SV32 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[207]) ).

thf(221,plain,
    ! [SV21: $i] :
      ( ( empty @ ( powerset @ SV21 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[208]) ).

thf(222,plain,
    ! [SV22: $i,SV33: $i] :
      ( ( ~ ( element @ SV33 @ ( powerset @ ( powerset @ SV22 ) ) )
        | ~ ~ ( ~ ( ( SV33 != empty_set ) )
              | ( ( complements_of_subsets @ SV22 @ SV33 )
               != empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[209]) ).

thf(223,plain,
    ! [SV23: $i] :
      ( ( ( ~ ( empty @ SV23 ) )
        = $true )
      | ( ( SV23 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[210]) ).

thf(224,plain,
    ! [SV34: $i,SV24: $i] :
      ( ( ~ ( ~ ( ~ ( element @ SV24 @ ( powerset @ SV34 ) )
                | ( subset @ SV24 @ SV34 ) )
            | ~ ( ~ ( subset @ SV24 @ SV34 )
                | ( element @ SV24 @ ( powerset @ SV34 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[211]) ).

thf(225,plain,
    ! [SV25: $i] :
      ( ( ( ~ ( v1_membered @ SV25 ) )
        = $true )
      | ( ( ! [SY40: $i] :
              ( ~ ( element @ SY40 @ ( powerset @ SV25 ) )
              | ( v1_membered @ SY40 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[212]) ).

thf(226,plain,
    ! [SV26: $i] :
      ( ( ! [SY41: $i] :
            ~ ( element @ SY41 @ SV26 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[213]) ).

thf(227,plain,
    ! [SV27: $i] :
      ( ( ( ~ ~ ( empty @ SV27 ) )
        = $true )
      | ( ( ~ ! [SY42: $i] :
                ~ ~ ( ~ ( element @ SY42 @ ( powerset @ SV27 ) )
                    | ~ ~ ( empty @ SY42 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[214]) ).

thf(228,plain,
    ! [SV35: $i,SV28: $i] :
      ( ( ! [SY49: $i] :
            ( ~ ~ ( ~ ( in @ SV28 @ SV35 )
                  | ~ ( element @ SV35 @ ( powerset @ SY49 ) ) )
            | ( element @ SV28 @ SY49 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[215]) ).

thf(229,plain,
    ! [SV29: $i,SV36: $i] :
      ( ( ~ ( element @ SV36 @ ( powerset @ ( powerset @ SV29 ) ) )
        | ( ( complements_of_subsets @ SV29 @ ( complements_of_subsets @ SV29 @ SV36 ) )
          = SV36 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[216]) ).

thf(230,plain,
    ( ( ~ ( ( ( complements_of_subsets @ sK1_A @ sK2_SY25 )
           != empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[217]) ).

thf(231,plain,
    ( ( sK2_SY25 != empty_set )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[217]) ).

thf(232,plain,
    ! [SV37: $i,SV30: $i] :
      ( ( ~ ( in @ SV30 @ SV37 )
        | ( element @ SV30 @ SV37 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[218]) ).

thf(233,plain,
    ! [SV31: $i] :
      ( ( ! [SY47: $i] :
            ~ ~ ( ~ ( element @ SY47 @ ( powerset @ SV31 ) )
                | ~ ( empty @ SY47 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[219]) ).

thf(234,plain,
    ! [SV32: $i,SV38: $i] :
      ( ( ~ ( element @ SV38 @ ( powerset @ ( powerset @ SV32 ) ) )
        | ( element @ ( complements_of_subsets @ SV32 @ SV38 ) @ ( powerset @ ( powerset @ SV32 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[220]) ).

thf(235,plain,
    ! [SV22: $i,SV33: $i] :
      ( ( ( ~ ( element @ SV33 @ ( powerset @ ( powerset @ SV22 ) ) ) )
        = $true )
      | ( ( ~ ~ ( ~ ( ( SV33 != empty_set ) )
                | ( ( complements_of_subsets @ SV22 @ SV33 )
                 != empty_set ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[222]) ).

thf(236,plain,
    ! [SV23: $i] :
      ( ( ( empty @ SV23 )
        = $false )
      | ( ( SV23 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[223]) ).

thf(237,plain,
    ! [SV34: $i,SV24: $i] :
      ( ( ~ ( ~ ( element @ SV24 @ ( powerset @ SV34 ) )
            | ( subset @ SV24 @ SV34 ) )
        | ~ ( ~ ( subset @ SV24 @ SV34 )
            | ( element @ SV24 @ ( powerset @ SV34 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[224]) ).

thf(238,plain,
    ! [SV25: $i] :
      ( ( ( v1_membered @ SV25 )
        = $false )
      | ( ( ! [SY40: $i] :
              ( ~ ( element @ SY40 @ ( powerset @ SV25 ) )
              | ( v1_membered @ SY40 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[225]) ).

thf(239,plain,
    ! [SV26: $i] :
      ( ( ~ ( element @ ( sK6_SY41 @ SV26 ) @ SV26 ) )
      = $false ),
    inference(extcnf_forall_neg,[status(esa)],[226]) ).

thf(240,plain,
    ! [SV27: $i] :
      ( ( ( ~ ( empty @ SV27 ) )
        = $false )
      | ( ( ~ ! [SY42: $i] :
                ~ ~ ( ~ ( element @ SY42 @ ( powerset @ SV27 ) )
                    | ~ ~ ( empty @ SY42 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[227]) ).

thf(241,plain,
    ! [SV39: $i,SV35: $i,SV28: $i] :
      ( ( ~ ~ ( ~ ( in @ SV28 @ SV35 )
              | ~ ( element @ SV35 @ ( powerset @ SV39 ) ) )
        | ( element @ SV28 @ SV39 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[228]) ).

thf(242,plain,
    ! [SV29: $i,SV36: $i] :
      ( ( ( ~ ( element @ SV36 @ ( powerset @ ( powerset @ SV29 ) ) ) )
        = $true )
      | ( ( ( complements_of_subsets @ SV29 @ ( complements_of_subsets @ SV29 @ SV36 ) )
          = SV36 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[229]) ).

thf(243,plain,
    ( ( ( complements_of_subsets @ sK1_A @ sK2_SY25 )
     != empty_set )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[230]) ).

thf(244,plain,
    ( ( sK2_SY25 = empty_set )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[231]) ).

thf(245,plain,
    ! [SV37: $i,SV30: $i] :
      ( ( ( ~ ( in @ SV30 @ SV37 ) )
        = $true )
      | ( ( element @ SV30 @ SV37 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[232]) ).

thf(246,plain,
    ! [SV31: $i] :
      ( ( ~ ~ ( ~ ( element @ ( sK7_SY47 @ SV31 ) @ ( powerset @ SV31 ) )
              | ~ ( empty @ ( sK7_SY47 @ SV31 ) ) ) )
      = $false ),
    inference(extcnf_forall_neg,[status(esa)],[233]) ).

thf(247,plain,
    ! [SV32: $i,SV38: $i] :
      ( ( ( ~ ( element @ SV38 @ ( powerset @ ( powerset @ SV32 ) ) ) )
        = $true )
      | ( ( element @ ( complements_of_subsets @ SV32 @ SV38 ) @ ( powerset @ ( powerset @ SV32 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[234]) ).

thf(248,plain,
    ! [SV22: $i,SV33: $i] :
      ( ( ( element @ SV33 @ ( powerset @ ( powerset @ SV22 ) ) )
        = $false )
      | ( ( ~ ~ ( ~ ( ( SV33 != empty_set ) )
                | ( ( complements_of_subsets @ SV22 @ SV33 )
                 != empty_set ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[235]) ).

thf(249,plain,
    ! [SV34: $i,SV24: $i] :
      ( ( ~ ( ~ ( element @ SV24 @ ( powerset @ SV34 ) )
            | ( subset @ SV24 @ SV34 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[237]) ).

thf(250,plain,
    ! [SV34: $i,SV24: $i] :
      ( ( ~ ( ~ ( subset @ SV24 @ SV34 )
            | ( element @ SV24 @ ( powerset @ SV34 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[237]) ).

thf(251,plain,
    ! [SV25: $i,SV40: $i] :
      ( ( ( ~ ( element @ SV40 @ ( powerset @ SV25 ) )
          | ( v1_membered @ SV40 ) )
        = $true )
      | ( ( v1_membered @ SV25 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[238]) ).

thf(252,plain,
    ! [SV26: $i] :
      ( ( element @ ( sK6_SY41 @ SV26 ) @ SV26 )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[239]) ).

thf(253,plain,
    ! [SV27: $i] :
      ( ( ( empty @ SV27 )
        = $true )
      | ( ( ~ ! [SY42: $i] :
                ~ ~ ( ~ ( element @ SY42 @ ( powerset @ SV27 ) )
                    | ~ ~ ( empty @ SY42 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[240]) ).

thf(254,plain,
    ! [SV39: $i,SV35: $i,SV28: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV28 @ SV35 )
                | ~ ( element @ SV35 @ ( powerset @ SV39 ) ) ) )
        = $true )
      | ( ( element @ SV28 @ SV39 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[241]) ).

thf(255,plain,
    ! [SV29: $i,SV36: $i] :
      ( ( ( element @ SV36 @ ( powerset @ ( powerset @ SV29 ) ) )
        = $false )
      | ( ( ( complements_of_subsets @ SV29 @ ( complements_of_subsets @ SV29 @ SV36 ) )
          = SV36 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[242]) ).

thf(256,plain,
    ( ( ( complements_of_subsets @ sK1_A @ sK2_SY25 )
      = empty_set )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[243]) ).

thf(257,plain,
    ! [SV37: $i,SV30: $i] :
      ( ( ( in @ SV30 @ SV37 )
        = $false )
      | ( ( element @ SV30 @ SV37 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[245]) ).

thf(258,plain,
    ! [SV31: $i] :
      ( ( ~ ( ~ ( element @ ( sK7_SY47 @ SV31 ) @ ( powerset @ SV31 ) )
            | ~ ( empty @ ( sK7_SY47 @ SV31 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[246]) ).

thf(259,plain,
    ! [SV32: $i,SV38: $i] :
      ( ( ( element @ SV38 @ ( powerset @ ( powerset @ SV32 ) ) )
        = $false )
      | ( ( element @ ( complements_of_subsets @ SV32 @ SV38 ) @ ( powerset @ ( powerset @ SV32 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[247]) ).

thf(260,plain,
    ! [SV22: $i,SV33: $i] :
      ( ( ( ~ ( ~ ( ( SV33 != empty_set ) )
              | ( ( complements_of_subsets @ SV22 @ SV33 )
               != empty_set ) ) )
        = $false )
      | ( ( element @ SV33 @ ( powerset @ ( powerset @ SV22 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[248]) ).

thf(261,plain,
    ! [SV34: $i,SV24: $i] :
      ( ( ~ ( element @ SV24 @ ( powerset @ SV34 ) )
        | ( subset @ SV24 @ SV34 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[249]) ).

thf(262,plain,
    ! [SV34: $i,SV24: $i] :
      ( ( ~ ( subset @ SV24 @ SV34 )
        | ( element @ SV24 @ ( powerset @ SV34 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[250]) ).

thf(263,plain,
    ! [SV25: $i,SV40: $i] :
      ( ( ( ~ ( element @ SV40 @ ( powerset @ SV25 ) ) )
        = $true )
      | ( ( v1_membered @ SV40 )
        = $true )
      | ( ( v1_membered @ SV25 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[251]) ).

thf(264,plain,
    ! [SV27: $i] :
      ( ( ( ! [SY42: $i] :
              ~ ~ ( ~ ( element @ SY42 @ ( powerset @ SV27 ) )
                  | ~ ~ ( empty @ SY42 ) ) )
        = $false )
      | ( ( empty @ SV27 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[253]) ).

thf(265,plain,
    ! [SV39: $i,SV35: $i,SV28: $i] :
      ( ( ( ~ ( ~ ( in @ SV28 @ SV35 )
              | ~ ( element @ SV35 @ ( powerset @ SV39 ) ) ) )
        = $false )
      | ( ( element @ SV28 @ SV39 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[254]) ).

thf(266,plain,
    ! [SV31: $i] :
      ( ( ~ ( element @ ( sK7_SY47 @ SV31 ) @ ( powerset @ SV31 ) )
        | ~ ( empty @ ( sK7_SY47 @ SV31 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[258]) ).

thf(267,plain,
    ! [SV22: $i,SV33: $i] :
      ( ( ( ~ ( ( SV33 != empty_set ) )
          | ( ( complements_of_subsets @ SV22 @ SV33 )
           != empty_set ) )
        = $true )
      | ( ( element @ SV33 @ ( powerset @ ( powerset @ SV22 ) ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[260]) ).

thf(268,plain,
    ! [SV34: $i,SV24: $i] :
      ( ( ( ~ ( element @ SV24 @ ( powerset @ SV34 ) ) )
        = $true )
      | ( ( subset @ SV24 @ SV34 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[261]) ).

thf(269,plain,
    ! [SV34: $i,SV24: $i] :
      ( ( ( ~ ( subset @ SV24 @ SV34 ) )
        = $true )
      | ( ( element @ SV24 @ ( powerset @ SV34 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[262]) ).

thf(270,plain,
    ! [SV25: $i,SV40: $i] :
      ( ( ( element @ SV40 @ ( powerset @ SV25 ) )
        = $false )
      | ( ( v1_membered @ SV40 )
        = $true )
      | ( ( v1_membered @ SV25 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[263]) ).

thf(271,plain,
    ! [SV27: $i] :
      ( ( ( ~ ~ ( ~ ( element @ ( sK8_SY42 @ SV27 ) @ ( powerset @ SV27 ) )
                | ~ ~ ( empty @ ( sK8_SY42 @ SV27 ) ) ) )
        = $false )
      | ( ( empty @ SV27 )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[264]) ).

thf(272,plain,
    ! [SV39: $i,SV35: $i,SV28: $i] :
      ( ( ( ~ ( in @ SV28 @ SV35 )
          | ~ ( element @ SV35 @ ( powerset @ SV39 ) ) )
        = $true )
      | ( ( element @ SV28 @ SV39 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[265]) ).

thf(273,plain,
    ! [SV31: $i] :
      ( ( ~ ( element @ ( sK7_SY47 @ SV31 ) @ ( powerset @ SV31 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[266]) ).

thf(274,plain,
    ! [SV31: $i] :
      ( ( ~ ( empty @ ( sK7_SY47 @ SV31 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[266]) ).

thf(275,plain,
    ! [SV22: $i,SV33: $i] :
      ( ( ( ~ ( ( SV33 != empty_set ) ) )
        = $true )
      | ( ( ( complements_of_subsets @ SV22 @ SV33 )
         != empty_set )
        = $true )
      | ( ( element @ SV33 @ ( powerset @ ( powerset @ SV22 ) ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[267]) ).

thf(276,plain,
    ! [SV34: $i,SV24: $i] :
      ( ( ( element @ SV24 @ ( powerset @ SV34 ) )
        = $false )
      | ( ( subset @ SV24 @ SV34 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[268]) ).

thf(277,plain,
    ! [SV34: $i,SV24: $i] :
      ( ( ( subset @ SV24 @ SV34 )
        = $false )
      | ( ( element @ SV24 @ ( powerset @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[269]) ).

thf(278,plain,
    ! [SV27: $i] :
      ( ( ( ~ ( ~ ( element @ ( sK8_SY42 @ SV27 ) @ ( powerset @ SV27 ) )
              | ~ ~ ( empty @ ( sK8_SY42 @ SV27 ) ) ) )
        = $true )
      | ( ( empty @ SV27 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[271]) ).

thf(279,plain,
    ! [SV39: $i,SV35: $i,SV28: $i] :
      ( ( ( ~ ( in @ SV28 @ SV35 ) )
        = $true )
      | ( ( ~ ( element @ SV35 @ ( powerset @ SV39 ) ) )
        = $true )
      | ( ( element @ SV28 @ SV39 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[272]) ).

thf(280,plain,
    ! [SV31: $i] :
      ( ( element @ ( sK7_SY47 @ SV31 ) @ ( powerset @ SV31 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[273]) ).

thf(281,plain,
    ! [SV31: $i] :
      ( ( empty @ ( sK7_SY47 @ SV31 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[274]) ).

thf(282,plain,
    ! [SV22: $i,SV33: $i] :
      ( ( ( SV33 != empty_set )
        = $false )
      | ( ( ( complements_of_subsets @ SV22 @ SV33 )
         != empty_set )
        = $true )
      | ( ( element @ SV33 @ ( powerset @ ( powerset @ SV22 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[275]) ).

thf(283,plain,
    ! [SV27: $i] :
      ( ( ( ~ ( element @ ( sK8_SY42 @ SV27 ) @ ( powerset @ SV27 ) )
          | ~ ~ ( empty @ ( sK8_SY42 @ SV27 ) ) )
        = $false )
      | ( ( empty @ SV27 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[278]) ).

thf(284,plain,
    ! [SV39: $i,SV35: $i,SV28: $i] :
      ( ( ( in @ SV28 @ SV35 )
        = $false )
      | ( ( ~ ( element @ SV35 @ ( powerset @ SV39 ) ) )
        = $true )
      | ( ( element @ SV28 @ SV39 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[279]) ).

thf(285,plain,
    ! [SV22: $i,SV33: $i] :
      ( ( ( SV33 = empty_set )
        = $true )
      | ( ( ( complements_of_subsets @ SV22 @ SV33 )
         != empty_set )
        = $true )
      | ( ( element @ SV33 @ ( powerset @ ( powerset @ SV22 ) ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[282]) ).

thf(286,plain,
    ! [SV27: $i] :
      ( ( ( ~ ( element @ ( sK8_SY42 @ SV27 ) @ ( powerset @ SV27 ) ) )
        = $false )
      | ( ( empty @ SV27 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[283]) ).

thf(287,plain,
    ! [SV27: $i] :
      ( ( ( ~ ~ ( empty @ ( sK8_SY42 @ SV27 ) ) )
        = $false )
      | ( ( empty @ SV27 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[283]) ).

thf(288,plain,
    ! [SV28: $i,SV39: $i,SV35: $i] :
      ( ( ( element @ SV35 @ ( powerset @ SV39 ) )
        = $false )
      | ( ( in @ SV28 @ SV35 )
        = $false )
      | ( ( element @ SV28 @ SV39 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[284]) ).

thf(289,plain,
    ! [SV33: $i,SV22: $i] :
      ( ( ( ( complements_of_subsets @ SV22 @ SV33 )
          = empty_set )
        = $false )
      | ( ( SV33 = empty_set )
        = $true )
      | ( ( element @ SV33 @ ( powerset @ ( powerset @ SV22 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[285]) ).

thf(290,plain,
    ! [SV27: $i] :
      ( ( ( element @ ( sK8_SY42 @ SV27 ) @ ( powerset @ SV27 ) )
        = $true )
      | ( ( empty @ SV27 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[286]) ).

thf(291,plain,
    ! [SV27: $i] :
      ( ( ( ~ ( empty @ ( sK8_SY42 @ SV27 ) ) )
        = $true )
      | ( ( empty @ SV27 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[287]) ).

thf(292,plain,
    ! [SV27: $i] :
      ( ( ( empty @ ( sK8_SY42 @ SV27 ) )
        = $false )
      | ( ( empty @ SV27 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[291]) ).

thf(293,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[180,292,290,289,288,281,280,277,276,270,259,257,256,255,252,244,236,221,194,183,181]) ).

thf(294,plain,
    $false,
    inference(solved_all_splits,[solved_all_splits(join,[])],[293,178]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03  % Problem  : SEU326+1 : TPTP v9.3.1. Released v3.3.0.
% 0.00/0.04  % Command  : leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.08/0.16  % Computer : n020.cluster.edu
% 0.08/0.16  % Model    : x86_64 x86_64
% 0.08/0.16  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.08/0.16  % Memory   : 8046.5625MB
% 0.08/0.16  % OS       : Linux 6.8.0-71-generic
% 0.08/0.17  % CPULimit : 300
% 0.08/0.17  % WCLimit  : 300
% 0.08/0.17  % DateTime : Tue Oct  6 15:14:51 UTC 2026
% 0.08/0.17  % CPUTime  : 
% 0.08/0.17  Running leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.57/0.28  
% 0.57/0.28   No.of.Axioms: 15
% 0.57/0.28  
% 0.57/0.28   Length.of.Defs: 0
% 0.57/0.28  
% 0.57/0.28   Contains.Choice.Funs: false
% 0.57/0.28  ......
% 0.57/0.28  
% 0.57/0.28  ********************************
% 0.57/0.28  *   All subproblems solved!    *
% 0.57/0.28  ********************************
% 0.57/0.28  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:1,axioms:16,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:293,loop_count:0,foatp_calls:1,translation:fof_full)
% 0.57/0.28  
% 0.57/0.28  %**** Beginning of derivation protocol ****
% 0.57/0.28  % SZS output start CNFRefutation
% See solution above
% 0.57/0.28  
% 0.57/0.28  %**** End of derivation protocol ****
% 0.57/0.28  %**** no. of clauses in derivation: 272 ****
% 0.57/0.28  %**** clause counter: 293 ****
% 0.57/0.28  
% 0.57/0.28  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:1,axioms:16,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:293,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------