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

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%------------------------------------------------------------------------------
% File     : LEO-II---2.3.1
% Problem  : SET889+1 : TPTP v9.3.1. Bugfixed v4.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p

% Computer : n014.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8046.5625MB
% OS       : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Wed Oct  7 10:42:29 AM UTC 2026

% Result   : Theorem 199.70s 40.17s
% Output   : CNFRefutation 199.70s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   23
%            Number of leaves      :    6
% Syntax   : Number of formulae    :  128 (  48 unt;   0 typ;   0 def)
%            Number of atoms       : 1068 ( 575 equ;   0 cnn)
%            Maximal formula atoms :    4 (   8 avg)
%            Number of connectives : 1889 ( 352   ~; 427   |;   0   &;1095   @)
%                                         (  15 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    9 (   4 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   13 (  10 usr;   4 con; 0-3 aty)
%            Number of variables   :  351 (   0   ^; 351   !;   0   ?; 351   :)

% Comments : 
%------------------------------------------------------------------------------
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_powerset,type,
    powerset: $i > $i ).

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

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

thf(tp_sK3_SY27,type,
    sK3_SY27: $i > $i > $i > $i ).

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

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

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

thf(5,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ ( singleton @ B ) )
    <=> ( ( A = empty_set )
        | ( A
          = ( singleton @ B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l4_zfmisc_1) ).

thf(6,axiom,
    empty @ empty_set,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc1_xboole_0) ).

thf(7,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( unordered_pair @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ( ( D = A )
            | ( D = B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d2_tarski) ).

thf(8,axiom,
    ! [A: $i,B: $i] :
      ( ( B
        = ( powerset @ A ) )
    <=> ! [C: $i] :
          ( ( in @ C @ B )
        <=> ( subset @ C @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_zfmisc_1) ).

thf(9,axiom,
    ! [A: $i,B: $i] :
      ( ( unordered_pair @ A @ B )
      = ( unordered_pair @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',commutativity_k2_tarski) ).

thf(11,conjecture,
    ! [A: $i] :
      ( ( powerset @ ( singleton @ A ) )
      = ( unordered_pair @ empty_set @ ( singleton @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t30_zfmisc_1) ).

thf(12,negated_conjecture,
    ( ( ! [A: $i] :
          ( ( powerset @ ( singleton @ A ) )
          = ( unordered_pair @ empty_set @ ( singleton @ A ) ) ) )
    = $false ),
    inference(negate_conjecture,[status(cth)],[11]) ).

thf(13,plain,
    ( ( ! [A: $i] :
          ( ( powerset @ ( singleton @ A ) )
          = ( unordered_pair @ empty_set @ ( singleton @ A ) ) ) )
    = $false ),
    inference(unfold_def,[status(thm)],[12]) ).

thf(14,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ ( singleton @ B ) )
        <=> ( ( A = empty_set )
            | ( A
              = ( singleton @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[5]) ).

thf(15,plain,
    ( ( empty @ empty_set )
    = $true ),
    inference(unfold_def,[status(thm)],[6]) ).

thf(16,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( C
            = ( unordered_pair @ A @ B ) )
        <=> ! [D: $i] :
              ( ( in @ D @ C )
            <=> ( ( D = A )
                | ( D = B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[7]) ).

thf(17,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( powerset @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( subset @ C @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[8]) ).

thf(18,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( unordered_pair @ A @ B )
          = ( unordered_pair @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[9]) ).

thf(19,plain,
    ( ( ( powerset @ ( singleton @ sK1_A ) )
      = ( unordered_pair @ empty_set @ ( singleton @ sK1_A ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[13]) ).

thf(20,plain,
    ( ( ( powerset @ ( singleton @ sK1_A ) )
     != ( unordered_pair @ empty_set @ ( singleton @ sK1_A ) ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[19]) ).

thf(21,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( unordered_pair @ A @ B )
          = ( unordered_pair @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[18]) ).

thf(22,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( powerset @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( subset @ C @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[17]) ).

thf(23,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( C
            = ( unordered_pair @ A @ B ) )
        <=> ! [D: $i] :
              ( ( in @ D @ C )
            <=> ( ( D = A )
                | ( D = B ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[16]) ).

thf(24,plain,
    ( ( empty @ empty_set )
    = $true ),
    inference(copy,[status(thm)],[15]) ).

thf(25,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ ( singleton @ B ) )
        <=> ( ( A = empty_set )
            | ( A
              = ( singleton @ B ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[14]) ).

thf(26,plain,
    ( ( ( powerset @ ( singleton @ sK1_A ) )
     != ( unordered_pair @ empty_set @ ( singleton @ sK1_A ) ) )
    = $true ),
    inference(copy,[status(thm)],[20]) ).

thf(27,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
                | ( SX0 = empty_set )
                | ( SX0
                  = ( singleton @ SX1 ) ) )
            | ~ ( ~ ( ( SX0 = empty_set )
                    | ( SX0
                      = ( singleton @ SX1 ) ) )
                | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[25]) ).

thf(28,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ~ ( ~ ( ( SX2
                 != ( unordered_pair @ SX0 @ SX1 ) )
                | ! [SX3: $i] :
                    ~ ( ~ ( ~ ( in @ SX3 @ SX2 )
                          | ( SX3 = SX0 )
                          | ( SX3 = SX1 ) )
                      | ~ ( ~ ( ( SX3 = SX0 )
                              | ( SX3 = SX1 ) )
                          | ( in @ SX3 @ SX2 ) ) ) )
            | ~ ( ~ ! [SX3: $i] :
                      ~ ( ~ ( ~ ( in @ SX3 @ SX2 )
                            | ( SX3 = SX0 )
                            | ( SX3 = SX1 ) )
                        | ~ ( ~ ( ( SX3 = SX0 )
                                | ( SX3 = SX1 ) )
                            | ( in @ SX3 @ SX2 ) ) )
                | ( SX2
                  = ( unordered_pair @ SX0 @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[23]) ).

thf(29,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ( SX1
                 != ( powerset @ SX0 ) )
                | ! [SX2: $i] :
                    ~ ( ~ ( ~ ( in @ SX2 @ SX1 )
                          | ( subset @ SX2 @ SX0 ) )
                      | ~ ( ~ ( subset @ SX2 @ SX0 )
                          | ( in @ SX2 @ SX1 ) ) ) )
            | ~ ( ~ ! [SX2: $i] :
                      ~ ( ~ ( ~ ( in @ SX2 @ SX1 )
                            | ( subset @ SX2 @ SX0 ) )
                        | ~ ( ~ ( subset @ SX2 @ SX0 )
                            | ( in @ SX2 @ SX1 ) ) )
                | ( SX1
                  = ( powerset @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[22]) ).

thf(30,plain,
    ! [SV1: $i] :
      ( ( ! [SY12: $i] :
            ( ( unordered_pair @ SV1 @ SY12 )
            = ( unordered_pair @ SY12 @ SV1 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[21]) ).

thf(31,plain,
    ( ( ( powerset @ ( singleton @ sK1_A ) )
      = ( unordered_pair @ empty_set @ ( singleton @ sK1_A ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[26]) ).

thf(32,plain,
    ! [SV2: $i] :
      ( ( ! [SY13: $i] :
            ~ ( ~ ( ~ ( subset @ SV2 @ ( singleton @ SY13 ) )
                  | ( SV2 = empty_set )
                  | ( SV2
                    = ( singleton @ SY13 ) ) )
              | ~ ( ~ ( ( SV2 = empty_set )
                      | ( SV2
                        = ( singleton @ SY13 ) ) )
                  | ( subset @ SV2 @ ( singleton @ SY13 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[27]) ).

thf(33,plain,
    ! [SV3: $i] :
      ( ( ! [SY14: $i,SY15: $i] :
            ~ ( ~ ( ( SY15
                   != ( unordered_pair @ SV3 @ SY14 ) )
                  | ! [SY16: $i] :
                      ~ ( ~ ( ~ ( in @ SY16 @ SY15 )
                            | ( SY16 = SV3 )
                            | ( SY16 = SY14 ) )
                        | ~ ( ~ ( ( SY16 = SV3 )
                                | ( SY16 = SY14 ) )
                            | ( in @ SY16 @ SY15 ) ) ) )
              | ~ ( ~ ! [SY17: $i] :
                        ~ ( ~ ( ~ ( in @ SY17 @ SY15 )
                              | ( SY17 = SV3 )
                              | ( SY17 = SY14 ) )
                          | ~ ( ~ ( ( SY17 = SV3 )
                                  | ( SY17 = SY14 ) )
                              | ( in @ SY17 @ SY15 ) ) )
                  | ( SY15
                    = ( unordered_pair @ SV3 @ SY14 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[28]) ).

thf(34,plain,
    ! [SV4: $i] :
      ( ( ! [SY18: $i] :
            ~ ( ~ ( ( SY18
                   != ( powerset @ SV4 ) )
                  | ! [SY19: $i] :
                      ~ ( ~ ( ~ ( in @ SY19 @ SY18 )
                            | ( subset @ SY19 @ SV4 ) )
                        | ~ ( ~ ( subset @ SY19 @ SV4 )
                            | ( in @ SY19 @ SY18 ) ) ) )
              | ~ ( ~ ! [SY20: $i] :
                        ~ ( ~ ( ~ ( in @ SY20 @ SY18 )
                              | ( subset @ SY20 @ SV4 ) )
                          | ~ ( ~ ( subset @ SY20 @ SV4 )
                              | ( in @ SY20 @ SY18 ) ) )
                  | ( SY18
                    = ( powerset @ SV4 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[29]) ).

thf(35,plain,
    ! [SV5: $i,SV1: $i] :
      ( ( ( unordered_pair @ SV1 @ SV5 )
        = ( unordered_pair @ SV5 @ SV1 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[30]) ).

thf(36,plain,
    ! [SV6: $i,SV2: $i] :
      ( ( ~ ( ~ ( ~ ( subset @ SV2 @ ( singleton @ SV6 ) )
                | ( SV2 = empty_set )
                | ( SV2
                  = ( singleton @ SV6 ) ) )
            | ~ ( ~ ( ( SV2 = empty_set )
                    | ( SV2
                      = ( singleton @ SV6 ) ) )
                | ( subset @ SV2 @ ( singleton @ SV6 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[32]) ).

thf(37,plain,
    ! [SV7: $i,SV3: $i] :
      ( ( ! [SY21: $i] :
            ~ ( ~ ( ( SY21
                   != ( unordered_pair @ SV3 @ SV7 ) )
                  | ! [SY22: $i] :
                      ~ ( ~ ( ~ ( in @ SY22 @ SY21 )
                            | ( SY22 = SV3 )
                            | ( SY22 = SV7 ) )
                        | ~ ( ~ ( ( SY22 = SV3 )
                                | ( SY22 = SV7 ) )
                            | ( in @ SY22 @ SY21 ) ) ) )
              | ~ ( ~ ! [SY23: $i] :
                        ~ ( ~ ( ~ ( in @ SY23 @ SY21 )
                              | ( SY23 = SV3 )
                              | ( SY23 = SV7 ) )
                          | ~ ( ~ ( ( SY23 = SV3 )
                                  | ( SY23 = SV7 ) )
                              | ( in @ SY23 @ SY21 ) ) )
                  | ( SY21
                    = ( unordered_pair @ SV3 @ SV7 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[33]) ).

thf(38,plain,
    ! [SV4: $i,SV8: $i] :
      ( ( ~ ( ~ ( ( SV8
                 != ( powerset @ SV4 ) )
                | ! [SY24: $i] :
                    ~ ( ~ ( ~ ( in @ SY24 @ SV8 )
                          | ( subset @ SY24 @ SV4 ) )
                      | ~ ( ~ ( subset @ SY24 @ SV4 )
                          | ( in @ SY24 @ SV8 ) ) ) )
            | ~ ( ~ ! [SY25: $i] :
                      ~ ( ~ ( ~ ( in @ SY25 @ SV8 )
                            | ( subset @ SY25 @ SV4 ) )
                        | ~ ( ~ ( subset @ SY25 @ SV4 )
                            | ( in @ SY25 @ SV8 ) ) )
                | ( SV8
                  = ( powerset @ SV4 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[34]) ).

thf(39,plain,
    ! [SV6: $i,SV2: $i] :
      ( ( ~ ( ~ ( subset @ SV2 @ ( singleton @ SV6 ) )
            | ( SV2 = empty_set )
            | ( SV2
              = ( singleton @ SV6 ) ) )
        | ~ ( ~ ( ( SV2 = empty_set )
                | ( SV2
                  = ( singleton @ SV6 ) ) )
            | ( subset @ SV2 @ ( singleton @ SV6 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[36]) ).

thf(40,plain,
    ! [SV7: $i,SV3: $i,SV9: $i] :
      ( ( ~ ( ~ ( ( SV9
                 != ( unordered_pair @ SV3 @ SV7 ) )
                | ! [SY26: $i] :
                    ~ ( ~ ( ~ ( in @ SY26 @ SV9 )
                          | ( SY26 = SV3 )
                          | ( SY26 = SV7 ) )
                      | ~ ( ~ ( ( SY26 = SV3 )
                              | ( SY26 = SV7 ) )
                          | ( in @ SY26 @ SV9 ) ) ) )
            | ~ ( ~ ! [SY27: $i] :
                      ~ ( ~ ( ~ ( in @ SY27 @ SV9 )
                            | ( SY27 = SV3 )
                            | ( SY27 = SV7 ) )
                        | ~ ( ~ ( ( SY27 = SV3 )
                                | ( SY27 = SV7 ) )
                            | ( in @ SY27 @ SV9 ) ) )
                | ( SV9
                  = ( unordered_pair @ SV3 @ SV7 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[37]) ).

thf(41,plain,
    ! [SV4: $i,SV8: $i] :
      ( ( ~ ( ( SV8
             != ( powerset @ SV4 ) )
            | ! [SY24: $i] :
                ~ ( ~ ( ~ ( in @ SY24 @ SV8 )
                      | ( subset @ SY24 @ SV4 ) )
                  | ~ ( ~ ( subset @ SY24 @ SV4 )
                      | ( in @ SY24 @ SV8 ) ) ) )
        | ~ ( ~ ! [SY25: $i] :
                  ~ ( ~ ( ~ ( in @ SY25 @ SV8 )
                        | ( subset @ SY25 @ SV4 ) )
                    | ~ ( ~ ( subset @ SY25 @ SV4 )
                        | ( in @ SY25 @ SV8 ) ) )
            | ( SV8
              = ( powerset @ SV4 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[38]) ).

thf(42,plain,
    ! [SV6: $i,SV2: $i] :
      ( ( ~ ( ~ ( subset @ SV2 @ ( singleton @ SV6 ) )
            | ( SV2 = empty_set )
            | ( SV2
              = ( singleton @ SV6 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[39]) ).

thf(43,plain,
    ! [SV6: $i,SV2: $i] :
      ( ( ~ ( ~ ( ( SV2 = empty_set )
                | ( SV2
                  = ( singleton @ SV6 ) ) )
            | ( subset @ SV2 @ ( singleton @ SV6 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[39]) ).

thf(44,plain,
    ! [SV7: $i,SV3: $i,SV9: $i] :
      ( ( ~ ( ( SV9
             != ( unordered_pair @ SV3 @ SV7 ) )
            | ! [SY26: $i] :
                ~ ( ~ ( ~ ( in @ SY26 @ SV9 )
                      | ( SY26 = SV3 )
                      | ( SY26 = SV7 ) )
                  | ~ ( ~ ( ( SY26 = SV3 )
                          | ( SY26 = SV7 ) )
                      | ( in @ SY26 @ SV9 ) ) ) )
        | ~ ( ~ ! [SY27: $i] :
                  ~ ( ~ ( ~ ( in @ SY27 @ SV9 )
                        | ( SY27 = SV3 )
                        | ( SY27 = SV7 ) )
                    | ~ ( ~ ( ( SY27 = SV3 )
                            | ( SY27 = SV7 ) )
                        | ( in @ SY27 @ SV9 ) ) )
            | ( SV9
              = ( unordered_pair @ SV3 @ SV7 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[40]) ).

thf(45,plain,
    ! [SV4: $i,SV8: $i] :
      ( ( ~ ( ( SV8
             != ( powerset @ SV4 ) )
            | ! [SY24: $i] :
                ~ ( ~ ( ~ ( in @ SY24 @ SV8 )
                      | ( subset @ SY24 @ SV4 ) )
                  | ~ ( ~ ( subset @ SY24 @ SV4 )
                      | ( in @ SY24 @ SV8 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[41]) ).

thf(46,plain,
    ! [SV4: $i,SV8: $i] :
      ( ( ~ ( ~ ! [SY25: $i] :
                  ~ ( ~ ( ~ ( in @ SY25 @ SV8 )
                        | ( subset @ SY25 @ SV4 ) )
                    | ~ ( ~ ( subset @ SY25 @ SV4 )
                        | ( in @ SY25 @ SV8 ) ) )
            | ( SV8
              = ( powerset @ SV4 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[41]) ).

thf(47,plain,
    ! [SV6: $i,SV2: $i] :
      ( ( ~ ( subset @ SV2 @ ( singleton @ SV6 ) )
        | ( SV2 = empty_set )
        | ( SV2
          = ( singleton @ SV6 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[42]) ).

thf(48,plain,
    ! [SV6: $i,SV2: $i] :
      ( ( ~ ( ( SV2 = empty_set )
            | ( SV2
              = ( singleton @ SV6 ) ) )
        | ( subset @ SV2 @ ( singleton @ SV6 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[43]) ).

thf(49,plain,
    ! [SV7: $i,SV3: $i,SV9: $i] :
      ( ( ~ ( ( SV9
             != ( unordered_pair @ SV3 @ SV7 ) )
            | ! [SY26: $i] :
                ~ ( ~ ( ~ ( in @ SY26 @ SV9 )
                      | ( SY26 = SV3 )
                      | ( SY26 = SV7 ) )
                  | ~ ( ~ ( ( SY26 = SV3 )
                          | ( SY26 = SV7 ) )
                      | ( in @ SY26 @ SV9 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[44]) ).

thf(50,plain,
    ! [SV7: $i,SV3: $i,SV9: $i] :
      ( ( ~ ( ~ ! [SY27: $i] :
                  ~ ( ~ ( ~ ( in @ SY27 @ SV9 )
                        | ( SY27 = SV3 )
                        | ( SY27 = SV7 ) )
                    | ~ ( ~ ( ( SY27 = SV3 )
                            | ( SY27 = SV7 ) )
                        | ( in @ SY27 @ SV9 ) ) )
            | ( SV9
              = ( unordered_pair @ SV3 @ SV7 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[44]) ).

thf(51,plain,
    ! [SV4: $i,SV8: $i] :
      ( ( ( SV8
         != ( powerset @ SV4 ) )
        | ! [SY24: $i] :
            ~ ( ~ ( ~ ( in @ SY24 @ SV8 )
                  | ( subset @ SY24 @ SV4 ) )
              | ~ ( ~ ( subset @ SY24 @ SV4 )
                  | ( in @ SY24 @ SV8 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[45]) ).

thf(52,plain,
    ! [SV4: $i,SV8: $i] :
      ( ( ~ ! [SY25: $i] :
              ~ ( ~ ( ~ ( in @ SY25 @ SV8 )
                    | ( subset @ SY25 @ SV4 ) )
                | ~ ( ~ ( subset @ SY25 @ SV4 )
                    | ( in @ SY25 @ SV8 ) ) )
        | ( SV8
          = ( powerset @ SV4 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[46]) ).

thf(53,plain,
    ! [SV6: $i,SV2: $i] :
      ( ( ( ~ ( subset @ SV2 @ ( singleton @ SV6 ) ) )
        = $true )
      | ( ( ( SV2 = empty_set )
          | ( SV2
            = ( singleton @ SV6 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[47]) ).

thf(54,plain,
    ! [SV6: $i,SV2: $i] :
      ( ( ( ~ ( ( SV2 = empty_set )
              | ( SV2
                = ( singleton @ SV6 ) ) ) )
        = $true )
      | ( ( subset @ SV2 @ ( singleton @ SV6 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[48]) ).

thf(55,plain,
    ! [SV7: $i,SV3: $i,SV9: $i] :
      ( ( ( SV9
         != ( unordered_pair @ SV3 @ SV7 ) )
        | ! [SY26: $i] :
            ~ ( ~ ( ~ ( in @ SY26 @ SV9 )
                  | ( SY26 = SV3 )
                  | ( SY26 = SV7 ) )
              | ~ ( ~ ( ( SY26 = SV3 )
                      | ( SY26 = SV7 ) )
                  | ( in @ SY26 @ SV9 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[49]) ).

thf(56,plain,
    ! [SV7: $i,SV3: $i,SV9: $i] :
      ( ( ~ ! [SY27: $i] :
              ~ ( ~ ( ~ ( in @ SY27 @ SV9 )
                    | ( SY27 = SV3 )
                    | ( SY27 = SV7 ) )
                | ~ ( ~ ( ( SY27 = SV3 )
                        | ( SY27 = SV7 ) )
                    | ( in @ SY27 @ SV9 ) ) )
        | ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[50]) ).

thf(57,plain,
    ! [SV4: $i,SV8: $i] :
      ( ( ( SV8
         != ( powerset @ SV4 ) )
        = $true )
      | ( ( ! [SY24: $i] :
              ~ ( ~ ( ~ ( in @ SY24 @ SV8 )
                    | ( subset @ SY24 @ SV4 ) )
                | ~ ( ~ ( subset @ SY24 @ SV4 )
                    | ( in @ SY24 @ SV8 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[51]) ).

thf(58,plain,
    ! [SV4: $i,SV8: $i] :
      ( ( ( ~ ! [SY25: $i] :
                ~ ( ~ ( ~ ( in @ SY25 @ SV8 )
                      | ( subset @ SY25 @ SV4 ) )
                  | ~ ( ~ ( subset @ SY25 @ SV4 )
                      | ( in @ SY25 @ SV8 ) ) ) )
        = $true )
      | ( ( SV8
          = ( powerset @ SV4 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[52]) ).

thf(59,plain,
    ! [SV6: $i,SV2: $i] :
      ( ( ( subset @ SV2 @ ( singleton @ SV6 ) )
        = $false )
      | ( ( ( SV2 = empty_set )
          | ( SV2
            = ( singleton @ SV6 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[53]) ).

thf(60,plain,
    ! [SV6: $i,SV2: $i] :
      ( ( ( ( SV2 = empty_set )
          | ( SV2
            = ( singleton @ SV6 ) ) )
        = $false )
      | ( ( subset @ SV2 @ ( singleton @ SV6 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[54]) ).

thf(61,plain,
    ! [SV7: $i,SV3: $i,SV9: $i] :
      ( ( ( SV9
         != ( unordered_pair @ SV3 @ SV7 ) )
        = $true )
      | ( ( ! [SY26: $i] :
              ~ ( ~ ( ~ ( in @ SY26 @ SV9 )
                    | ( SY26 = SV3 )
                    | ( SY26 = SV7 ) )
                | ~ ( ~ ( ( SY26 = SV3 )
                        | ( SY26 = SV7 ) )
                    | ( in @ SY26 @ SV9 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[55]) ).

thf(62,plain,
    ! [SV7: $i,SV3: $i,SV9: $i] :
      ( ( ( ~ ! [SY27: $i] :
                ~ ( ~ ( ~ ( in @ SY27 @ SV9 )
                      | ( SY27 = SV3 )
                      | ( SY27 = SV7 ) )
                  | ~ ( ~ ( ( SY27 = SV3 )
                          | ( SY27 = SV7 ) )
                      | ( in @ SY27 @ SV9 ) ) ) )
        = $true )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[56]) ).

thf(63,plain,
    ! [SV4: $i,SV8: $i] :
      ( ( ( SV8
          = ( powerset @ SV4 ) )
        = $false )
      | ( ( ! [SY24: $i] :
              ~ ( ~ ( ~ ( in @ SY24 @ SV8 )
                    | ( subset @ SY24 @ SV4 ) )
                | ~ ( ~ ( subset @ SY24 @ SV4 )
                    | ( in @ SY24 @ SV8 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[57]) ).

thf(64,plain,
    ! [SV4: $i,SV8: $i] :
      ( ( ( ! [SY25: $i] :
              ~ ( ~ ( ~ ( in @ SY25 @ SV8 )
                    | ( subset @ SY25 @ SV4 ) )
                | ~ ( ~ ( subset @ SY25 @ SV4 )
                    | ( in @ SY25 @ SV8 ) ) ) )
        = $false )
      | ( ( SV8
          = ( powerset @ SV4 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[58]) ).

thf(65,plain,
    ! [SV6: $i,SV2: $i] :
      ( ( ( SV2 = empty_set )
        = $true )
      | ( ( SV2
          = ( singleton @ SV6 ) )
        = $true )
      | ( ( subset @ SV2 @ ( singleton @ SV6 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[59]) ).

thf(66,plain,
    ! [SV6: $i,SV2: $i] :
      ( ( ( SV2 = empty_set )
        = $false )
      | ( ( subset @ SV2 @ ( singleton @ SV6 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[60]) ).

thf(67,plain,
    ! [SV6: $i,SV2: $i] :
      ( ( ( SV2
          = ( singleton @ SV6 ) )
        = $false )
      | ( ( subset @ SV2 @ ( singleton @ SV6 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[60]) ).

thf(68,plain,
    ! [SV7: $i,SV3: $i,SV9: $i] :
      ( ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $false )
      | ( ( ! [SY26: $i] :
              ~ ( ~ ( ~ ( in @ SY26 @ SV9 )
                    | ( SY26 = SV3 )
                    | ( SY26 = SV7 ) )
                | ~ ( ~ ( ( SY26 = SV3 )
                        | ( SY26 = SV7 ) )
                    | ( in @ SY26 @ SV9 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[61]) ).

thf(69,plain,
    ! [SV7: $i,SV3: $i,SV9: $i] :
      ( ( ( ! [SY27: $i] :
              ~ ( ~ ( ~ ( in @ SY27 @ SV9 )
                    | ( SY27 = SV3 )
                    | ( SY27 = SV7 ) )
                | ~ ( ~ ( ( SY27 = SV3 )
                        | ( SY27 = SV7 ) )
                    | ( in @ SY27 @ SV9 ) ) ) )
        = $false )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[62]) ).

thf(70,plain,
    ! [SV4: $i,SV8: $i,SV10: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV10 @ SV8 )
                  | ( subset @ SV10 @ SV4 ) )
              | ~ ( ~ ( subset @ SV10 @ SV4 )
                  | ( in @ SV10 @ SV8 ) ) ) )
        = $true )
      | ( ( SV8
          = ( powerset @ SV4 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[63]) ).

thf(71,plain,
    ! [SV8: $i,SV4: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV8 )
                  | ( subset @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV4 ) )
              | ~ ( ~ ( subset @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV4 )
                  | ( in @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV8 ) ) ) )
        = $false )
      | ( ( SV8
          = ( powerset @ SV4 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[64]) ).

thf(72,plain,
    ! [SV7: $i,SV3: $i,SV9: $i,SV11: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV11 @ SV9 )
                  | ( SV11 = SV3 )
                  | ( SV11 = SV7 ) )
              | ~ ( ~ ( ( SV11 = SV3 )
                      | ( SV11 = SV7 ) )
                  | ( in @ SV11 @ SV9 ) ) ) )
        = $true )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[68]) ).

thf(73,plain,
    ! [SV9: $i,SV3: $i,SV7: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK3_SY27 @ SV7 @ SV3 @ SV9 ) @ SV9 )
                  | ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                    = SV3 )
                  | ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                    = SV7 ) )
              | ~ ( ~ ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                        = SV3 )
                      | ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                        = SV7 ) )
                  | ( in @ ( sK3_SY27 @ SV7 @ SV3 @ SV9 ) @ SV9 ) ) ) )
        = $false )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[69]) ).

thf(74,plain,
    ! [SV4: $i,SV8: $i,SV10: $i] :
      ( ( ( ~ ( ~ ( in @ SV10 @ SV8 )
              | ( subset @ SV10 @ SV4 ) )
          | ~ ( ~ ( subset @ SV10 @ SV4 )
              | ( in @ SV10 @ SV8 ) ) )
        = $false )
      | ( ( SV8
          = ( powerset @ SV4 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[70]) ).

thf(75,plain,
    ! [SV8: $i,SV4: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV8 )
              | ( subset @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV4 ) )
          | ~ ( ~ ( subset @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV4 )
              | ( in @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV8 ) ) )
        = $true )
      | ( ( SV8
          = ( powerset @ SV4 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[71]) ).

thf(76,plain,
    ! [SV7: $i,SV3: $i,SV9: $i,SV11: $i] :
      ( ( ( ~ ( ~ ( in @ SV11 @ SV9 )
              | ( SV11 = SV3 )
              | ( SV11 = SV7 ) )
          | ~ ( ~ ( ( SV11 = SV3 )
                  | ( SV11 = SV7 ) )
              | ( in @ SV11 @ SV9 ) ) )
        = $false )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[72]) ).

thf(77,plain,
    ! [SV9: $i,SV3: $i,SV7: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK3_SY27 @ SV7 @ SV3 @ SV9 ) @ SV9 )
              | ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                = SV3 )
              | ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                = SV7 ) )
          | ~ ( ~ ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                    = SV3 )
                  | ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                    = SV7 ) )
              | ( in @ ( sK3_SY27 @ SV7 @ SV3 @ SV9 ) @ SV9 ) ) )
        = $true )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[73]) ).

thf(78,plain,
    ! [SV4: $i,SV8: $i,SV10: $i] :
      ( ( ( ~ ( ~ ( in @ SV10 @ SV8 )
              | ( subset @ SV10 @ SV4 ) ) )
        = $false )
      | ( ( SV8
          = ( powerset @ SV4 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[74]) ).

thf(79,plain,
    ! [SV8: $i,SV4: $i,SV10: $i] :
      ( ( ( ~ ( ~ ( subset @ SV10 @ SV4 )
              | ( in @ SV10 @ SV8 ) ) )
        = $false )
      | ( ( SV8
          = ( powerset @ SV4 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[74]) ).

thf(80,plain,
    ! [SV8: $i,SV4: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV8 )
              | ( subset @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV4 ) ) )
        = $true )
      | ( ( ~ ( ~ ( subset @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV4 )
              | ( in @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV8 ) ) )
        = $true )
      | ( ( SV8
          = ( powerset @ SV4 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[75]) ).

thf(81,plain,
    ! [SV7: $i,SV3: $i,SV9: $i,SV11: $i] :
      ( ( ( ~ ( ~ ( in @ SV11 @ SV9 )
              | ( SV11 = SV3 )
              | ( SV11 = SV7 ) ) )
        = $false )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[76]) ).

thf(82,plain,
    ! [SV9: $i,SV7: $i,SV3: $i,SV11: $i] :
      ( ( ( ~ ( ~ ( ( SV11 = SV3 )
                  | ( SV11 = SV7 ) )
              | ( in @ SV11 @ SV9 ) ) )
        = $false )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[76]) ).

thf(83,plain,
    ! [SV9: $i,SV3: $i,SV7: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK3_SY27 @ SV7 @ SV3 @ SV9 ) @ SV9 )
              | ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                = SV3 )
              | ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                = SV7 ) ) )
        = $true )
      | ( ( ~ ( ~ ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                    = SV3 )
                  | ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                    = SV7 ) )
              | ( in @ ( sK3_SY27 @ SV7 @ SV3 @ SV9 ) @ SV9 ) ) )
        = $true )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[77]) ).

thf(84,plain,
    ! [SV4: $i,SV8: $i,SV10: $i] :
      ( ( ( ~ ( in @ SV10 @ SV8 )
          | ( subset @ SV10 @ SV4 ) )
        = $true )
      | ( ( SV8
          = ( powerset @ SV4 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[78]) ).

thf(85,plain,
    ! [SV8: $i,SV4: $i,SV10: $i] :
      ( ( ( ~ ( subset @ SV10 @ SV4 )
          | ( in @ SV10 @ SV8 ) )
        = $true )
      | ( ( SV8
          = ( powerset @ SV4 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[79]) ).

thf(86,plain,
    ! [SV8: $i,SV4: $i] :
      ( ( ( ~ ( in @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV8 )
          | ( subset @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV4 ) )
        = $false )
      | ( ( ~ ( ~ ( subset @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV4 )
              | ( in @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV8 ) ) )
        = $true )
      | ( ( SV8
          = ( powerset @ SV4 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[80]) ).

thf(87,plain,
    ! [SV7: $i,SV3: $i,SV9: $i,SV11: $i] :
      ( ( ( ~ ( in @ SV11 @ SV9 )
          | ( SV11 = SV3 )
          | ( SV11 = SV7 ) )
        = $true )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[81]) ).

thf(88,plain,
    ! [SV9: $i,SV7: $i,SV3: $i,SV11: $i] :
      ( ( ( ~ ( ( SV11 = SV3 )
              | ( SV11 = SV7 ) )
          | ( in @ SV11 @ SV9 ) )
        = $true )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[82]) ).

thf(89,plain,
    ! [SV9: $i,SV3: $i,SV7: $i] :
      ( ( ( ~ ( in @ ( sK3_SY27 @ SV7 @ SV3 @ SV9 ) @ SV9 )
          | ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
            = SV3 )
          | ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
            = SV7 ) )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                    = SV3 )
                  | ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                    = SV7 ) )
              | ( in @ ( sK3_SY27 @ SV7 @ SV3 @ SV9 ) @ SV9 ) ) )
        = $true )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[83]) ).

thf(90,plain,
    ! [SV4: $i,SV8: $i,SV10: $i] :
      ( ( ( ~ ( in @ SV10 @ SV8 ) )
        = $true )
      | ( ( subset @ SV10 @ SV4 )
        = $true )
      | ( ( SV8
          = ( powerset @ SV4 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[84]) ).

thf(91,plain,
    ! [SV8: $i,SV4: $i,SV10: $i] :
      ( ( ( ~ ( subset @ SV10 @ SV4 ) )
        = $true )
      | ( ( in @ SV10 @ SV8 )
        = $true )
      | ( ( SV8
          = ( powerset @ SV4 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[85]) ).

thf(92,plain,
    ! [SV8: $i,SV4: $i] :
      ( ( ( ~ ( in @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV8 ) )
        = $false )
      | ( ( ~ ( ~ ( subset @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV4 )
              | ( in @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV8 ) ) )
        = $true )
      | ( ( SV8
          = ( powerset @ SV4 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[86]) ).

thf(93,plain,
    ! [SV8: $i,SV4: $i] :
      ( ( ( subset @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV4 )
        = $false )
      | ( ( ~ ( ~ ( subset @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV4 )
              | ( in @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV8 ) ) )
        = $true )
      | ( ( SV8
          = ( powerset @ SV4 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[86]) ).

thf(94,plain,
    ! [SV7: $i,SV3: $i,SV9: $i,SV11: $i] :
      ( ( ( ~ ( in @ SV11 @ SV9 ) )
        = $true )
      | ( ( ( SV11 = SV3 )
          | ( SV11 = SV7 ) )
        = $true )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[87]) ).

thf(95,plain,
    ! [SV9: $i,SV7: $i,SV3: $i,SV11: $i] :
      ( ( ( ~ ( ( SV11 = SV3 )
              | ( SV11 = SV7 ) ) )
        = $true )
      | ( ( in @ SV11 @ SV9 )
        = $true )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[88]) ).

thf(96,plain,
    ! [SV9: $i,SV3: $i,SV7: $i] :
      ( ( ( ~ ( in @ ( sK3_SY27 @ SV7 @ SV3 @ SV9 ) @ SV9 ) )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                    = SV3 )
                  | ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                    = SV7 ) )
              | ( in @ ( sK3_SY27 @ SV7 @ SV3 @ SV9 ) @ SV9 ) ) )
        = $true )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[89]) ).

thf(97,plain,
    ! [SV9: $i,SV3: $i,SV7: $i] :
      ( ( ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
            = SV3 )
          | ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
            = SV7 ) )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                    = SV3 )
                  | ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                    = SV7 ) )
              | ( in @ ( sK3_SY27 @ SV7 @ SV3 @ SV9 ) @ SV9 ) ) )
        = $true )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[89]) ).

thf(98,plain,
    ! [SV4: $i,SV8: $i,SV10: $i] :
      ( ( ( in @ SV10 @ SV8 )
        = $false )
      | ( ( subset @ SV10 @ SV4 )
        = $true )
      | ( ( SV8
          = ( powerset @ SV4 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[90]) ).

thf(99,plain,
    ! [SV8: $i,SV4: $i,SV10: $i] :
      ( ( ( subset @ SV10 @ SV4 )
        = $false )
      | ( ( in @ SV10 @ SV8 )
        = $true )
      | ( ( SV8
          = ( powerset @ SV4 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[91]) ).

thf(100,plain,
    ! [SV8: $i,SV4: $i] :
      ( ( ( in @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV8 )
        = $true )
      | ( ( ~ ( ~ ( subset @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV4 )
              | ( in @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV8 ) ) )
        = $true )
      | ( ( SV8
          = ( powerset @ SV4 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[92]) ).

thf(101,plain,
    ! [SV8: $i,SV4: $i] :
      ( ( ( ~ ( subset @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV4 )
          | ( in @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV8 ) )
        = $false )
      | ( ( subset @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV4 )
        = $false )
      | ( ( SV8
          = ( powerset @ SV4 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[93]) ).

thf(102,plain,
    ! [SV7: $i,SV3: $i,SV9: $i,SV11: $i] :
      ( ( ( in @ SV11 @ SV9 )
        = $false )
      | ( ( ( SV11 = SV3 )
          | ( SV11 = SV7 ) )
        = $true )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[94]) ).

thf(103,plain,
    ! [SV9: $i,SV7: $i,SV3: $i,SV11: $i] :
      ( ( ( ( SV11 = SV3 )
          | ( SV11 = SV7 ) )
        = $false )
      | ( ( in @ SV11 @ SV9 )
        = $true )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[95]) ).

thf(104,plain,
    ! [SV9: $i,SV3: $i,SV7: $i] :
      ( ( ( in @ ( sK3_SY27 @ SV7 @ SV3 @ SV9 ) @ SV9 )
        = $true )
      | ( ( ~ ( ~ ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                    = SV3 )
                  | ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                    = SV7 ) )
              | ( in @ ( sK3_SY27 @ SV7 @ SV3 @ SV9 ) @ SV9 ) ) )
        = $true )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[96]) ).

thf(105,plain,
    ! [SV9: $i,SV3: $i,SV7: $i] :
      ( ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
          = SV3 )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                    = SV3 )
                  | ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                    = SV7 ) )
              | ( in @ ( sK3_SY27 @ SV7 @ SV3 @ SV9 ) @ SV9 ) ) )
        = $true )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[97]) ).

thf(106,plain,
    ! [SV9: $i,SV3: $i,SV7: $i] :
      ( ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
          = SV7 )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                    = SV3 )
                  | ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                    = SV7 ) )
              | ( in @ ( sK3_SY27 @ SV7 @ SV3 @ SV9 ) @ SV9 ) ) )
        = $true )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[97]) ).

thf(107,plain,
    ! [SV8: $i,SV4: $i] :
      ( ( ( ~ ( subset @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV4 )
          | ( in @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV8 ) )
        = $false )
      | ( ( in @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV8 )
        = $true )
      | ( ( SV8
          = ( powerset @ SV4 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[100]) ).

thf(108,plain,
    ! [SV8: $i,SV4: $i] :
      ( ( ( ~ ( subset @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV4 ) )
        = $false )
      | ( ( subset @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV4 )
        = $false )
      | ( ( SV8
          = ( powerset @ SV4 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[101]) ).

thf(109,plain,
    ! [SV8: $i,SV4: $i] :
      ( ( ( in @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV8 )
        = $false )
      | ( ( subset @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV4 )
        = $false )
      | ( ( SV8
          = ( powerset @ SV4 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[101]) ).

thf(110,plain,
    ! [SV9: $i,SV7: $i,SV3: $i,SV11: $i] :
      ( ( ( SV11 = SV3 )
        = $true )
      | ( ( SV11 = SV7 )
        = $true )
      | ( ( in @ SV11 @ SV9 )
        = $false )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[102]) ).

thf(111,plain,
    ! [SV7: $i,SV9: $i,SV3: $i,SV11: $i] :
      ( ( ( SV11 = SV3 )
        = $false )
      | ( ( in @ SV11 @ SV9 )
        = $true )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[103]) ).

thf(112,plain,
    ! [SV3: $i,SV9: $i,SV7: $i,SV11: $i] :
      ( ( ( SV11 = SV7 )
        = $false )
      | ( ( in @ SV11 @ SV9 )
        = $true )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[103]) ).

thf(113,plain,
    ! [SV9: $i,SV3: $i,SV7: $i] :
      ( ( ( ~ ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                = SV3 )
              | ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                = SV7 ) )
          | ( in @ ( sK3_SY27 @ SV7 @ SV3 @ SV9 ) @ SV9 ) )
        = $false )
      | ( ( in @ ( sK3_SY27 @ SV7 @ SV3 @ SV9 ) @ SV9 )
        = $true )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[104]) ).

thf(114,plain,
    ! [SV9: $i,SV3: $i,SV7: $i] :
      ( ( ( ~ ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                = SV3 )
              | ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                = SV7 ) )
          | ( in @ ( sK3_SY27 @ SV7 @ SV3 @ SV9 ) @ SV9 ) )
        = $false )
      | ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
          = SV3 )
        = $false )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[105]) ).

thf(115,plain,
    ! [SV9: $i,SV3: $i,SV7: $i] :
      ( ( ( ~ ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                = SV3 )
              | ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                = SV7 ) )
          | ( in @ ( sK3_SY27 @ SV7 @ SV3 @ SV9 ) @ SV9 ) )
        = $false )
      | ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
          = SV7 )
        = $false )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[106]) ).

thf(116,plain,
    ! [SV8: $i,SV4: $i] :
      ( ( ( ~ ( subset @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV4 ) )
        = $false )
      | ( ( in @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV8 )
        = $true )
      | ( ( SV8
          = ( powerset @ SV4 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[107]) ).

thf(117,plain,
    ! [SV8: $i,SV4: $i] :
      ( ( ( in @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV8 )
        = $false )
      | ( ( in @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV8 )
        = $true )
      | ( ( SV8
          = ( powerset @ SV4 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[107]) ).

thf(118,plain,
    ! [SV8: $i,SV4: $i] :
      ( ( ( subset @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV4 )
        = $true )
      | ( ( subset @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV4 )
        = $false )
      | ( ( SV8
          = ( powerset @ SV4 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[108]) ).

thf(119,plain,
    ! [SV9: $i,SV3: $i,SV7: $i] :
      ( ( ( ~ ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                = SV3 )
              | ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                = SV7 ) ) )
        = $false )
      | ( ( in @ ( sK3_SY27 @ SV7 @ SV3 @ SV9 ) @ SV9 )
        = $true )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[113]) ).

thf(120,plain,
    ! [SV9: $i,SV3: $i,SV7: $i] :
      ( ( ( in @ ( sK3_SY27 @ SV7 @ SV3 @ SV9 ) @ SV9 )
        = $false )
      | ( ( in @ ( sK3_SY27 @ SV7 @ SV3 @ SV9 ) @ SV9 )
        = $true )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[113]) ).

thf(121,plain,
    ! [SV9: $i,SV3: $i,SV7: $i] :
      ( ( ( ~ ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                = SV3 )
              | ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                = SV7 ) ) )
        = $false )
      | ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
          = SV3 )
        = $false )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[114]) ).

thf(122,plain,
    ! [SV9: $i,SV3: $i,SV7: $i] :
      ( ( ( in @ ( sK3_SY27 @ SV7 @ SV3 @ SV9 ) @ SV9 )
        = $false )
      | ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
          = SV3 )
        = $false )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[114]) ).

thf(123,plain,
    ! [SV9: $i,SV3: $i,SV7: $i] :
      ( ( ( ~ ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                = SV3 )
              | ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
                = SV7 ) ) )
        = $false )
      | ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
          = SV7 )
        = $false )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[115]) ).

thf(124,plain,
    ! [SV9: $i,SV3: $i,SV7: $i] :
      ( ( ( in @ ( sK3_SY27 @ SV7 @ SV3 @ SV9 ) @ SV9 )
        = $false )
      | ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
          = SV7 )
        = $false )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[115]) ).

thf(125,plain,
    ! [SV8: $i,SV4: $i] :
      ( ( ( subset @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV4 )
        = $true )
      | ( ( in @ ( sK2_SY25 @ SV4 @ SV8 ) @ SV8 )
        = $true )
      | ( ( SV8
          = ( powerset @ SV4 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[116]) ).

thf(126,plain,
    ! [SV9: $i,SV3: $i,SV7: $i] :
      ( ( ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
            = SV3 )
          | ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
            = SV7 ) )
        = $true )
      | ( ( in @ ( sK3_SY27 @ SV7 @ SV3 @ SV9 ) @ SV9 )
        = $true )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[119]) ).

thf(127,plain,
    ! [SV9: $i,SV3: $i,SV7: $i] :
      ( ( ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
            = SV3 )
          | ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
            = SV7 ) )
        = $true )
      | ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
          = SV3 )
        = $false )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[121]) ).

thf(128,plain,
    ! [SV9: $i,SV3: $i,SV7: $i] :
      ( ( ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
            = SV3 )
          | ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
            = SV7 ) )
        = $true )
      | ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
          = SV7 )
        = $false )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[123]) ).

thf(129,plain,
    ! [SV9: $i,SV3: $i,SV7: $i] :
      ( ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
          = SV3 )
        = $true )
      | ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
          = SV7 )
        = $true )
      | ( ( in @ ( sK3_SY27 @ SV7 @ SV3 @ SV9 ) @ SV9 )
        = $true )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[126]) ).

thf(130,plain,
    ! [SV9: $i,SV3: $i,SV7: $i] :
      ( ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
          = SV3 )
        = $true )
      | ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
          = SV7 )
        = $true )
      | ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
          = SV3 )
        = $false )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[127]) ).

thf(131,plain,
    ! [SV9: $i,SV3: $i,SV7: $i] :
      ( ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
          = SV3 )
        = $true )
      | ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
          = SV7 )
        = $true )
      | ( ( ( sK3_SY27 @ SV7 @ SV3 @ SV9 )
          = SV7 )
        = $false )
      | ( ( SV9
          = ( unordered_pair @ SV3 @ SV7 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[128]) ).

thf(132,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[24,131,130,129,125,124,122,120,118,117,112,111,110,109,99,98,67,66,65,35,31]) ).

thf(133,plain,
    $false,
    inference(solved_all_splits,[solved_all_splits(join,[])],[132]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03  % Problem  : SET889+1 : TPTP v9.3.1. Bugfixed v4.0.0.
% 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
% 0.07/0.19  % Computer : n014.cluster.edu
% 0.07/0.19  % Model    : x86_64 x86_64
% 0.07/0.19  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.07/0.19  % Memory   : 8046.5625MB
% 0.07/0.19  % OS       : Linux 6.8.0-71-generic
% 0.07/0.19  % CPULimit : 300
% 0.07/0.19  % WCLimit  : 300
% 0.07/0.19  % DateTime : Tue Oct  6 14:55:26 UTC 2026
% 0.07/0.19  % CPUTime  : 
% 0.07/0.19  Running leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p
% 199.70/40.17  
% 199.70/40.17   No.of.Axioms: 5
% 199.70/40.17  
% 199.70/40.17   Length.of.Defs: 0
% 199.70/40.17  
% 199.70/40.17   Contains.Choice.Funs: false
% 199.70/40.17  ...
% 199.70/40.17  
% 199.70/40.17  ********************************
% 199.70/40.17  *   All subproblems solved!    *
% 199.70/40.17  ********************************
% 199.70/40.17  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:1,axioms:5,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:132,loop_count:0,foatp_calls:1,translation:fof_full)
% 199.70/40.17  
% 199.70/40.17  %**** Beginning of derivation protocol ****
% 199.70/40.17  % SZS output start CNFRefutation
% See solution above
% 199.70/40.17  
% 199.70/40.17  %**** End of derivation protocol ****
% 199.70/40.17  %**** no. of clauses in derivation: 128 ****
% 199.70/40.17  %**** clause counter: 132 ****
% 199.70/40.17  
% 199.70/40.17  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:1,axioms:5,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:132,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------