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Leo-III---1.8.0.THM-Ref.s

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%------------------------------------------------------------------------------
% File     : Leo-III---1.8.0
% Problem  : SET919+1 : TPTP v9.3.1. Released v3.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox2/solver/bin/leo3.jar /export/starexec/sandbox2/benchmark/theBenchmark.p -t 300 -p  --atp eprover=/export/starexec/sandbox2/solver/bin/externals/eprover --instantiate 39

% Computer : n015.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8046.5625MB
% OS       : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Sun Sep 27 08:31:20 AM UTC 2026

% Result   : Theorem 87.49s 19.19s
% Output   : Refutation 74.04s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   41
%            Number of leaves      :   21
% Syntax   : Number of formulae    :  724 ( 216 unt;   0 typ;  11 def)
%            Number of atoms       : 2032 (1032 equ;   0 cnn)
%            Maximal formula atoms :   26 (   2 avg)
%            Number of connectives : 6910 (1237   ~; 846   |;  57   &;4714   @)
%                                         (   6 <=>;  50  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   24 (   6 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   21 (  18 usr;   7 con; 0-3 aty)
%            Number of variables   : 1104 (  16   ^;1073   !;   4   ?;1104   :)
%                                         (   0  !>;   0  ?*;   0  @-;  11  @+)

% Comments : 
%------------------------------------------------------------------------------
thf(in_decl,type,
    in: $i > $i > $o ).

thf(set_intersection2_decl,type,
    set_intersection2: $i > $i > $i ).

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

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

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

thf(sk1_decl,type,
    sk1: $i ).

thf(sk2_decl,type,
    sk2: $i ).

thf(sk3_decl,type,
    sk3: $i ).

thf(sk4_decl,type,
    sk4: $i > $i > $i ).

thf(sk5_decl,type,
    sk5: $i > $i > $i ).

thf(sk6_decl,type,
    sk6: $i > $i > $i > $o ).

thf(sk7_decl,type,
    sk7: $i > $i > $i > $i ).

thf(sk8_decl,type,
    sk8: $i > $i > $i > $i ).

thf(sk9_decl,type,
    sk9: $i > $i > $i > $o ).

thf(sk10_decl,type,
    sk10: $i > $i > $i > $i ).

thf(sk11_decl,type,
    sk11: $i > $i > $i > $i ).

thf(sk12_decl,type,
    sk12: $i ).

thf(sk13_decl,type,
    sk13: $i ).

thf(sk1_def,definition,
    ( sk1
    = ( @+[A: $i] :
          ~ ! [B: $i] :
              ( ( B @ ( A @ in ) )
             => ! [C: $i] :
                  ( ( ( B @ ( C @ ( A @ unordered_pair ) @ set_intersection2 ) )
                    = ( A @ singleton ) )
                  | ( ( A != C )
                    & ( B @ ( C @ in ) ) ) ) ) ) ) ).

thf(sk2_def,definition,
    ( sk2
    = ( @+[A: $i] :
          ~ ( ( A @ ( sk1 @ in ) )
           => ! [B: $i] :
                ( ( ( A @ ( B @ ( sk1 @ unordered_pair ) @ set_intersection2 ) )
                  = ( sk1 @ singleton ) )
                | ( ( sk1 != B )
                  & ( A @ ( B @ in ) ) ) ) ) ) ) ).

thf(sk3_def,definition,
    ( sk3
    = ( @+[A: $i] :
          ~ ( ( ( sk2 @ ( A @ ( sk1 @ unordered_pair ) @ set_intersection2 ) )
              = ( sk1 @ singleton ) )
            | ( ( sk1 != A )
              & ( sk2 @ ( A @ in ) ) ) ) ) ) ).

thf(sk4_def,definition,
    ( sk4
    = ( ^ [A: $i,B: $i] :
        @+[C: $i] :
          ~ ( ( A @ ( C @ in ) )
           => ( C = B ) ) ) ) ).

thf(sk5_def,definition,
    ( sk5
    = ( ^ [A: $i,B: $i] :
        @+[C: $i] :
          ~ ( ( C = B )
           => ( A @ ( C @ in ) ) ) ) ) ).

thf(sk7_def,definition,
    ( sk7
    = ( ^ [A: $i,B: $i,C: $i] :
        @+[D: $i] :
          ~ ( ( A @ ( D @ in ) )
           => ( ( D = B )
              | ( D = C ) ) ) ) ) ).

thf(sk8_def,definition,
    ( sk8
    = ( ^ [A: $i,B: $i,C: $i] :
        @+[D: $i] :
          ~ ( ( ( D = B )
              | ( D = C ) )
           => ( A @ ( D @ in ) ) ) ) ) ).

thf(sk10_def,definition,
    ( sk10
    = ( ^ [A: $i,B: $i,C: $i] :
        @+[D: $i] :
          ~ ( ( A @ ( D @ in ) )
           => ( ( B @ ( D @ in ) )
              & ( C @ ( D @ in ) ) ) ) ) ) ).

thf(sk11_def,definition,
    ( sk11
    = ( ^ [A: $i,B: $i,C: $i] :
        @+[D: $i] :
          ~ ( ( ( B @ ( D @ in ) )
              & ( C @ ( D @ in ) ) )
           => ( A @ ( D @ in ) ) ) ) ) ).

thf(sk12_def,definition,
    ( sk12
    = ( @+[A: $i] : ( A @ empty ) ) ) ).

thf(sk13_def,definition,
    ( sk13
    = ( @+[A: $i] :
          ~ ( A @ empty ) ) ) ).

thf(7,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( B @ ( A @ unordered_pair ) ) )
    <=> ! [D: $i] :
          ( ( C @ ( D @ in ) )
        <=> ( ( D = B )
            | ( D = A ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d2_tarski) ).

thf(49,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( ! [D: $i] :
            ( ( ( ( D = B )
                | ( D = A ) )
             => ( C @ ( D @ in ) ) )
            & ( ( C @ ( D @ in ) )
             => ( ( D = B )
                | ( D = A ) ) ) )
       => ( C
          = ( B @ ( A @ unordered_pair ) ) ) )
      & ( ( C
          = ( B @ ( A @ unordered_pair ) ) )
       => ! [D: $i] :
            ( ( ( ( D = B )
                | ( D = A ) )
             => ( C @ ( D @ in ) ) )
            & ( ( C @ ( D @ in ) )
             => ( ( D = B )
                | ( D = A ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[7]) ).

thf(50,plain,
    ( ! [A: $i,B: $i,C: $i] :
        ( ( ! [D: $i] :
              ( ( ( D = B )
                | ( D = A ) )
             => ( C @ ( D @ in ) ) )
          & ! [D: $i] :
              ( ( C @ ( D @ in ) )
             => ( ( D = B )
                | ( D = A ) ) ) )
       => ( C
          = ( B @ ( A @ unordered_pair ) ) ) )
    & ! [A: $i,B: $i,C: $i] :
        ( ( C
          = ( B @ ( A @ unordered_pair ) ) )
       => ( ! [D: $i] :
              ( ( ( D = B )
                | ( D = A ) )
             => ( C @ ( D @ in ) ) )
          & ! [D: $i] :
              ( ( C @ ( D @ in ) )
             => ( ( D = B )
                | ( D = A ) ) ) ) ) ),
    inference(miniscope,[status(thm)],[49]) ).

thf(51,plain,
    ! [H: $i,G: $i,F: $i,E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( ( H
          = ( G @ ( F @ unordered_pair ) ) )
        | ~ ( H @ ( F @ ( G @ ( H @ sk8 ) ) @ in ) )
        | ( H @ ( G @ ( F @ sk6 ) ) ) )
      & ( ( H
          = ( G @ ( F @ unordered_pair ) ) )
        | ( ( F @ ( G @ ( H @ sk8 ) ) )
          = G )
        | ( ( F @ ( G @ ( H @ sk8 ) ) )
          = F )
        | ( H @ ( G @ ( F @ sk6 ) ) ) )
      & ( ( H
          = ( G @ ( F @ unordered_pair ) ) )
        | ~ ( H @ ( G @ ( F @ sk6 ) ) )
        | ( ( F @ ( G @ ( H @ sk7 ) ) )
         != G ) )
      & ( ( H
          = ( G @ ( F @ unordered_pair ) ) )
        | ~ ( H @ ( G @ ( F @ sk6 ) ) )
        | ( ( F @ ( G @ ( H @ sk7 ) ) )
         != F ) )
      & ( ( H
          = ( G @ ( F @ unordered_pair ) ) )
        | ~ ( H @ ( G @ ( F @ sk6 ) ) )
        | ( H @ ( F @ ( G @ ( H @ sk7 ) ) @ in ) ) )
      & ( ( C @ ( E @ in ) )
        | ( E != B )
        | ( C
         != ( B @ ( A @ unordered_pair ) ) ) )
      & ( ( C @ ( E @ in ) )
        | ( E != A )
        | ( C
         != ( B @ ( A @ unordered_pair ) ) ) )
      & ( ( D = B )
        | ( D = A )
        | ~ ( C @ ( D @ in ) )
        | ( C
         != ( B @ ( A @ unordered_pair ) ) ) ) ),
    inference(cnf,[status(esa)],[50]) ).

thf(59,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( C @ ( D @ in ) )
      | ( D != B )
      | ( C
       != ( B @ ( A @ unordered_pair ) ) ) ),
    inference(cnfConj,[status(thm)],[51]) ).

thf(68,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( C @ ( D @ in ) )
      | ( D != B )
      | ( C
       != ( B @ ( A @ unordered_pair ) ) ) ),
    inference(lifteq,[status(thm)],[59]) ).

thf(69,plain,
    ! [B: $i,A: $i] : ( B @ ( A @ unordered_pair ) @ ( B @ in ) ),
    inference(simp,[status(thm)],[68]) ).

thf(1,conjecture,
    ! [A: $i,B: $i,C: $i] :
      ( ( B @ ( A @ in ) )
     => ( ( ( B @ ( C @ ( A @ unordered_pair ) @ set_intersection2 ) )
          = ( A @ singleton ) )
        | ( ( A != C )
          & ( B @ ( C @ in ) ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t60_zfmisc_1) ).

thf(2,negated_conjecture,
    ~ ! [A: $i,B: $i,C: $i] :
        ( ( B @ ( A @ in ) )
       => ( ( ( B @ ( C @ ( A @ unordered_pair ) @ set_intersection2 ) )
            = ( A @ singleton ) )
          | ( ( A != C )
            & ( B @ ( C @ in ) ) ) ) ),
    inference(neg_conjecture,[status(cth)],[1]) ).

thf(12,plain,
    ~ ! [A: $i,B: $i,C: $i] :
        ( ( B @ ( A @ in ) )
       => ( ( ( B @ ( C @ ( A @ unordered_pair ) @ set_intersection2 ) )
            = ( A @ singleton ) )
          | ( ( A != C )
            & ( B @ ( C @ in ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[2]) ).

thf(13,plain,
    ~ ! [A: $i,B: $i] :
        ( ( B @ ( A @ in ) )
       => ! [C: $i] :
            ( ( ( B @ ( C @ ( A @ unordered_pair ) @ set_intersection2 ) )
              = ( A @ singleton ) )
            | ( ( A != C )
              & ( B @ ( C @ in ) ) ) ) ),
    inference(miniscope,[status(thm)],[12]) ).

thf(14,plain,
    ( ( ( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) )
     != ( sk1 @ singleton ) )
    & ( ( sk1 = sk3 )
      | ~ ( sk2 @ ( sk3 @ in ) ) )
    & ( sk2 @ ( sk1 @ in ) ) ),
    inference(cnf,[status(esa)],[13]) ).

thf(15,plain,
    sk2 @ ( sk1 @ in ),
    inference(cnfConj,[status(thm)],[14]) ).

thf(3,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ in ) )
     => ~ ( A @ ( B @ in ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',antisymmetry_r2_hidden) ).

thf(20,plain,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ in ) )
     => ~ ( A @ ( B @ in ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[3]) ).

thf(21,plain,
    ! [B: $i,A: $i] :
      ( ~ ( A @ ( B @ in ) )
      | ~ ( B @ ( A @ in ) ) ),
    inference(cnf,[status(esa)],[20]) ).

thf(114,plain,
    ! [B: $i,A: $i] :
      ( ( ( sk2 @ ( sk1 @ in ) )
       != ( B @ ( A @ in ) ) )
      | ~ ( A @ ( B @ in ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[15,21]) ).

thf(115,plain,
    ! [B: $i,A: $i] :
      ( ( ( sk2 @ ( sk1 @ in ) )
       != ( B @ ( A @ in ) ) )
      | ~ ( A @ ( B @ in ) ) ),
    inference(simp,[status(thm)],[114]) ).

thf(116,plain,
    ~ ( sk1 @ ( sk2 @ in ) ),
    inference(pattern_uni,[status(thm)],[115:[bind(A,$thf( sk1 )),bind(B,$thf( sk2 ))]]) ).

thf(133,plain,
    ( ( ( sk1 @ ( sk2 @ in ) )
     != ( sk2 @ ( sk1 @ in ) ) )
    | ~ $true ),
    inference(paramod_ordered,[status(thm)],[15,116]) ).

thf(134,plain,
    ( ( sk1 @ ( sk2 @ in ) )
   != ( sk2 @ ( sk1 @ in ) ) ),
    inference(simp,[status(thm)],[133]) ).

thf(136,plain,
    ( ( sk2 != sk1 )
    | ( sk2 != sk1 ) ),
    inference(simp,[status(thm)],[134]) ).

thf(138,plain,
    sk2 != sk1,
    inference(simp,[status(thm)],[136]) ).

thf(8,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( B @ ( A @ set_intersection2 ) ) )
    <=> ! [D: $i] :
          ( ( C @ ( D @ in ) )
        <=> ( ( B @ ( D @ in ) )
            & ( A @ ( D @ in ) ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d3_xboole_0) ).

thf(76,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( ! [D: $i] :
            ( ( ( ( B @ ( D @ in ) )
                & ( A @ ( D @ in ) ) )
             => ( C @ ( D @ in ) ) )
            & ( ( C @ ( D @ in ) )
             => ( ( B @ ( D @ in ) )
                & ( A @ ( D @ in ) ) ) ) )
       => ( C
          = ( B @ ( A @ set_intersection2 ) ) ) )
      & ( ( C
          = ( B @ ( A @ set_intersection2 ) ) )
       => ! [D: $i] :
            ( ( ( ( B @ ( D @ in ) )
                & ( A @ ( D @ in ) ) )
             => ( C @ ( D @ in ) ) )
            & ( ( C @ ( D @ in ) )
             => ( ( B @ ( D @ in ) )
                & ( A @ ( D @ in ) ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[8]) ).

thf(77,plain,
    ( ! [A: $i,B: $i,C: $i] :
        ( ( ! [D: $i] :
              ( ( ( B @ ( D @ in ) )
                & ( A @ ( D @ in ) ) )
             => ( C @ ( D @ in ) ) )
          & ! [D: $i] :
              ( ( C @ ( D @ in ) )
             => ( ( B @ ( D @ in ) )
                & ( A @ ( D @ in ) ) ) ) )
       => ( C
          = ( B @ ( A @ set_intersection2 ) ) ) )
    & ! [A: $i,B: $i,C: $i] :
        ( ( C
          = ( B @ ( A @ set_intersection2 ) ) )
       => ( ! [D: $i] :
              ( ( ( B @ ( D @ in ) )
                & ( A @ ( D @ in ) ) )
             => ( C @ ( D @ in ) ) )
          & ! [D: $i] :
              ( ( C @ ( D @ in ) )
             => ( ( B @ ( D @ in ) )
                & ( A @ ( D @ in ) ) ) ) ) ) ),
    inference(miniscope,[status(thm)],[76]) ).

thf(78,plain,
    ! [H: $i,G: $i,F: $i,E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( ( H
          = ( G @ ( F @ set_intersection2 ) ) )
        | ~ ( H @ ( F @ ( G @ ( H @ sk11 ) ) @ in ) )
        | ( H @ ( G @ ( F @ sk9 ) ) ) )
      & ( ( H
          = ( G @ ( F @ set_intersection2 ) ) )
        | ( G @ ( F @ ( G @ ( H @ sk11 ) ) @ in ) )
        | ( H @ ( G @ ( F @ sk9 ) ) ) )
      & ( ( H
          = ( G @ ( F @ set_intersection2 ) ) )
        | ( F @ ( F @ ( G @ ( H @ sk11 ) ) @ in ) )
        | ( H @ ( G @ ( F @ sk9 ) ) ) )
      & ( ( H
          = ( G @ ( F @ set_intersection2 ) ) )
        | ~ ( H @ ( G @ ( F @ sk9 ) ) )
        | ~ ( G @ ( F @ ( G @ ( H @ sk10 ) ) @ in ) )
        | ~ ( F @ ( F @ ( G @ ( H @ sk10 ) ) @ in ) ) )
      & ( ( H
          = ( G @ ( F @ set_intersection2 ) ) )
        | ~ ( H @ ( G @ ( F @ sk9 ) ) )
        | ( H @ ( F @ ( G @ ( H @ sk10 ) ) @ in ) ) )
      & ( ( C @ ( E @ in ) )
        | ~ ( B @ ( E @ in ) )
        | ~ ( A @ ( E @ in ) )
        | ( C
         != ( B @ ( A @ set_intersection2 ) ) ) )
      & ( ( B @ ( D @ in ) )
        | ~ ( C @ ( D @ in ) )
        | ( C
         != ( B @ ( A @ set_intersection2 ) ) ) )
      & ( ( A @ ( D @ in ) )
        | ~ ( C @ ( D @ in ) )
        | ( C
         != ( B @ ( A @ set_intersection2 ) ) ) ) ),
    inference(cnf,[status(esa)],[77]) ).

thf(84,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( A @ ( D @ in ) )
      | ~ ( C @ ( D @ in ) )
      | ( C
       != ( B @ ( A @ set_intersection2 ) ) ) ),
    inference(cnfConj,[status(thm)],[78]) ).

thf(87,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( A @ ( D @ in ) )
      | ~ ( C @ ( D @ in ) )
      | ( C
       != ( B @ ( A @ set_intersection2 ) ) ) ),
    inference(lifteq,[status(thm)],[84]) ).

thf(88,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( A @ ( C @ in ) )
      | ~ ( B @ ( A @ set_intersection2 ) @ ( C @ in ) ) ),
    inference(simp,[status(thm)],[87]) ).

thf(82,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( C
        = ( B @ ( A @ set_intersection2 ) ) )
      | ( B @ ( A @ ( B @ ( C @ sk11 ) ) @ in ) )
      | ( C @ ( B @ ( A @ sk9 ) ) ) ),
    inference(cnfConj,[status(thm)],[78]) ).

thf(97,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( B @ ( A @ ( B @ ( C @ sk11 ) ) @ in ) )
      | ( C @ ( B @ ( A @ sk9 ) ) )
      | ( C
        = ( B @ ( A @ set_intersection2 ) ) ) ),
    inference(lifteq,[status(thm)],[82]) ).

thf(98,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( B @ ( A @ ( B @ ( C @ sk11 ) ) @ in ) )
      | ( C @ ( B @ ( A @ sk9 ) ) )
      | ( C
        = ( B @ ( A @ set_intersection2 ) ) ) ),
    inference(simp,[status(thm)],[97]) ).

thf(9,axiom,
    ! [A: $i,B: $i] :
      ( ( A @ ( A @ set_intersection2 ) )
      = A ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',idempotence_k3_xboole_0) ).

thf(103,plain,
    ! [A: $i] :
      ( ( A @ ( A @ set_intersection2 ) )
      = A ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[9]) ).

thf(104,plain,
    ! [A: $i] :
      ( ( A @ ( A @ set_intersection2 ) )
      = A ),
    inference(cnf,[status(esa)],[103]) ).

thf(105,plain,
    ! [A: $i] :
      ( ( A @ ( A @ set_intersection2 ) )
      = A ),
    inference(lifteq,[status(thm)],[104]) ).

thf(1908,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ set_intersection2 ) )
       != ( D @ ( D @ set_intersection2 ) ) )
      | ( C = D )
      | ( B @ ( A @ ( B @ ( C @ sk11 ) ) @ in ) )
      | ( C @ ( B @ ( A @ sk9 ) ) ) ),
    inference(paramod_ordered,[status(thm)],[98,105]) ).

thf(1909,plain,
    ! [B: $i,A: $i] :
      ( ( B = A )
      | ( A @ ( A @ ( A @ ( B @ sk11 ) ) @ in ) )
      | ( B @ ( A @ ( A @ sk9 ) ) ) ),
    inference(pattern_uni,[status(thm)],[1908:[bind(A,$thf( B )),bind(B,$thf( B )),bind(C,$thf( C )),bind(D,$thf( B ))]]) ).

thf(2132,plain,
    ! [B: $i,A: $i] :
      ( ( B = A )
      | ( A @ ( A @ ( A @ ( B @ sk11 ) ) @ in ) )
      | ( B @ ( A @ ( A @ sk9 ) ) ) ),
    inference(simp,[status(thm)],[1909]) ).

thf(6,axiom,
    ! [A: $i,B: $i] :
      ( ( B
        = ( A @ singleton ) )
    <=> ! [C: $i] :
          ( ( B @ ( C @ in ) )
        <=> ( C = A ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d1_tarski) ).

thf(28,plain,
    ! [A: $i,B: $i] :
      ( ( ! [C: $i] :
            ( ( ( C = A )
             => ( B @ ( C @ in ) ) )
            & ( ( B @ ( C @ in ) )
             => ( C = A ) ) )
       => ( B
          = ( A @ singleton ) ) )
      & ( ( B
          = ( A @ singleton ) )
       => ! [C: $i] :
            ( ( ( C = A )
             => ( B @ ( C @ in ) ) )
            & ( ( B @ ( C @ in ) )
             => ( C = A ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[6]) ).

thf(29,plain,
    ( ! [A: $i,B: $i] :
        ( ( ! [C: $i] :
              ( ( C = A )
             => ( B @ ( C @ in ) ) )
          & ! [C: $i] :
              ( ( B @ ( C @ in ) )
             => ( C = A ) ) )
       => ( B
          = ( A @ singleton ) ) )
    & ! [A: $i,B: $i] :
        ( ( B
          = ( A @ singleton ) )
       => ( ! [C: $i] :
              ( ( C = A )
             => ( B @ ( C @ in ) ) )
          & ! [C: $i] :
              ( ( B @ ( C @ in ) )
             => ( C = A ) ) ) ) ),
    inference(miniscope,[status(thm)],[28]) ).

thf(30,plain,
    ! [F: $i,E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( ( F
          = ( E @ singleton ) )
        | ~ ( F @ ( E @ ( F @ sk5 ) @ in ) )
        | ( ( E @ ( F @ sk4 ) )
         != E ) )
      & ( ( F
          = ( E @ singleton ) )
        | ( ( E @ ( F @ sk5 ) )
          = E )
        | ( ( E @ ( F @ sk4 ) )
         != E ) )
      & ( ( F
          = ( E @ singleton ) )
        | ~ ( F @ ( E @ ( F @ sk5 ) @ in ) )
        | ( F @ ( E @ ( F @ sk4 ) @ in ) ) )
      & ( ( F
          = ( E @ singleton ) )
        | ( ( E @ ( F @ sk5 ) )
          = E )
        | ( F @ ( E @ ( F @ sk4 ) @ in ) ) )
      & ( ( B @ ( D @ in ) )
        | ( D != A )
        | ( B
         != ( A @ singleton ) ) )
      & ( ( C = A )
        | ~ ( B @ ( C @ in ) )
        | ( B
         != ( A @ singleton ) ) ) ),
    inference(cnf,[status(esa)],[29]) ).

thf(35,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( C = A )
      | ~ ( B @ ( C @ in ) )
      | ( B
       != ( A @ singleton ) ) ),
    inference(cnfConj,[status(thm)],[30]) ).

thf(39,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( B @ ( C @ in ) )
      | ( C = A )
      | ( B
       != ( A @ singleton ) ) ),
    inference(lifteq,[status(thm)],[35]) ).

thf(40,plain,
    ! [B: $i,A: $i] :
      ( ~ ( A @ singleton @ ( B @ in ) )
      | ( B = A ) ),
    inference(simp,[status(thm)],[39]) ).

thf(734,plain,
    ! [B: $i,A: $i] :
      ( ( A != sk2 )
      | ( B != sk1 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,138]) ).

thf(735,plain,
    ! [A: $i] :
      ( ( A != sk1 )
      | ~ ( sk2 @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[734:[bind(A,$thf( sk2 ))]]) ).

thf(1042,plain,
    ~ ( sk2 @ singleton @ ( sk1 @ in ) ),
    inference(simp,[status(thm)],[735]) ).

thf(1178,plain,
    ( ( ( sk2 @ singleton @ ( sk1 @ in ) )
     != ( sk2 @ ( sk1 @ in ) ) )
    | ~ $true ),
    inference(paramod_ordered,[status(thm)],[15,1042]) ).

thf(1179,plain,
    ( ( sk2 @ singleton @ ( sk1 @ in ) )
   != ( sk2 @ ( sk1 @ in ) ) ),
    inference(simp,[status(thm)],[1178]) ).

thf(1202,plain,
    ( ( ( sk2 @ singleton )
     != sk2 )
    | ( sk1 != sk1 ) ),
    inference(simp,[status(thm)],[1179]) ).

thf(1210,plain,
    ( ( sk2 @ singleton )
   != sk2 ),
    inference(simp,[status(thm)],[1202]) ).

thf(9499,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk2 @ singleton ) )
      | ( B != sk2 )
      | ( A @ ( A @ ( A @ ( B @ sk11 ) ) @ in ) )
      | ( B @ ( A @ ( A @ sk9 ) ) ) ),
    inference(paramod_ordered,[status(thm)],[2132,1210]) ).

thf(9500,plain,
    ! [A: $i] :
      ( ( A != sk2 )
      | ( sk2 @ singleton @ ( sk2 @ singleton @ ( sk2 @ singleton @ ( A @ sk11 ) ) @ in ) )
      | ( A @ ( sk2 @ singleton @ ( sk2 @ singleton @ sk9 ) ) ) ),
    inference(pattern_uni,[status(thm)],[9499:[bind(A,$thf( sk2 @ singleton )),bind(B,$thf( B ))]]) ).

thf(10609,plain,
    ( ( sk2 @ singleton @ ( sk2 @ singleton @ ( sk2 @ singleton @ ( sk2 @ sk11 ) ) @ in ) )
    | ( sk2 @ ( sk2 @ singleton @ ( sk2 @ singleton @ sk9 ) ) ) ),
    inference(simp,[status(thm)],[9500]) ).

thf(10,axiom,
    ? [A: $i] : ( A @ empty ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',rc1_xboole_0) ).

thf(106,plain,
    ? [A: $i] : ( A @ empty ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[10]) ).

thf(107,plain,
    sk12 @ empty,
    inference(cnf,[status(esa)],[106]) ).

thf(11,axiom,
    ? [A: $i] :
      ~ ( A @ empty ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',rc2_xboole_0) ).

thf(108,plain,
    ? [A: $i] :
      ~ ( A @ empty ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[11]) ).

thf(109,plain,
    ~ ! [A: $i] : ( A @ empty ),
    inference(miniscope,[status(thm)],[108]) ).

thf(110,plain,
    ~ ( sk13 @ empty ),
    inference(cnf,[status(esa)],[109]) ).

thf(111,plain,
    ( ( ( sk13 @ empty )
     != ( sk12 @ empty ) )
    | ~ $true ),
    inference(paramod_ordered,[status(thm)],[107,110]) ).

thf(112,plain,
    ( ( sk13 @ empty )
   != ( sk12 @ empty ) ),
    inference(simp,[status(thm)],[111]) ).

thf(113,plain,
    sk13 != sk12,
    inference(simp,[status(thm)],[112]) ).

thf(897,plain,
    ! [B: $i,A: $i] :
      ( ( A != sk13 )
      | ( B != sk12 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,113]) ).

thf(898,plain,
    ! [A: $i] :
      ( ( A != sk12 )
      | ~ ( sk13 @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[897:[bind(A,$thf( sk13 ))]]) ).

thf(1104,plain,
    ~ ( sk13 @ singleton @ ( sk12 @ in ) ),
    inference(simp,[status(thm)],[898]) ).

thf(1268,plain,
    ( ( ( sk13 @ singleton @ ( sk12 @ in ) )
     != ( sk2 @ ( sk1 @ in ) ) )
    | ~ $true ),
    inference(paramod_ordered,[status(thm)],[15,1104]) ).

thf(1269,plain,
    ( ( sk13 @ singleton @ ( sk12 @ in ) )
   != ( sk2 @ ( sk1 @ in ) ) ),
    inference(simp,[status(thm)],[1268]) ).

thf(1294,plain,
    ( ( ( sk13 @ singleton )
     != sk2 )
    | ( sk12 != sk1 ) ),
    inference(simp,[status(thm)],[1269]) ).

thf(1712,plain,
    ! [B: $i,A: $i] :
      ( ( A != sk12 )
      | ( ( sk13 @ singleton )
       != sk2 )
      | ( B != sk1 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1294]) ).

thf(1713,plain,
    ! [A: $i] :
      ( ( ( sk13 @ singleton )
       != sk2 )
      | ( A != sk1 )
      | ~ ( sk12 @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[1712:[bind(A,$thf( sk12 ))]]) ).

thf(1718,plain,
    ( ( ( sk13 @ singleton )
     != sk2 )
    | ~ ( sk12 @ singleton @ ( sk1 @ in ) ) ),
    inference(simp,[status(thm)],[1713]) ).

thf(4,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ unordered_pair ) )
      = ( A @ ( B @ unordered_pair ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',commutativity_k2_tarski) ).

thf(22,plain,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ unordered_pair ) )
      = ( A @ ( B @ unordered_pair ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[4]) ).

thf(23,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) )
      = ( A @ ( B @ unordered_pair ) ) ),
    inference(cnf,[status(esa)],[22]) ).

thf(24,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) )
      = ( A @ ( B @ unordered_pair ) ) ),
    inference(lifteq,[status(thm)],[23]) ).

thf(57,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( C @ ( D @ in ) )
      | ( D != A )
      | ( C
       != ( B @ ( A @ unordered_pair ) ) ) ),
    inference(cnfConj,[status(thm)],[51]) ).

thf(64,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( C @ ( D @ in ) )
      | ( D != A )
      | ( C
       != ( B @ ( A @ unordered_pair ) ) ) ),
    inference(lifteq,[status(thm)],[57]) ).

thf(65,plain,
    ! [B: $i,A: $i] : ( B @ ( A @ unordered_pair ) @ ( A @ in ) ),
    inference(simp,[status(thm)],[64]) ).

thf(120,plain,
    ! [B: $i,A: $i] :
      ( ~ $true
      | ( ( A @ ( B @ in ) )
       != ( B @ ( A @ in ) ) )
      | ~ ( B @ ( A @ in ) ) ),
    inference(eqfactor_ordered,[status(thm)],[21]) ).

thf(121,plain,
    ! [A: $i] :
      ~ ( A @ ( A @ in ) ),
    inference(pattern_uni,[status(thm)],[120:[bind(A,$thf( B ))]]) ).

thf(122,plain,
    ! [A: $i] :
      ~ ( A @ ( A @ in ) ),
    inference(simp,[status(thm)],[121]) ).

thf(228,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
       != ( C @ ( C @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[65,122]) ).

thf(229,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
     != ( C @ ( C @ in ) ) ),
    inference(simp,[status(thm)],[228]) ).

thf(238,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != C )
      | ( A != C ) ),
    inference(simp,[status(thm)],[229]) ).

thf(248,plain,
    ! [B: $i,A: $i] :
      ( ( A @ ( B @ unordered_pair ) )
     != B ),
    inference(simp,[status(thm)],[238]) ).

thf(522,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != ( C @ ( D @ unordered_pair ) ) )
      | ( ( A @ ( B @ unordered_pair ) )
       != D ) ),
    inference(paramod_ordered,[status(thm)],[24,248]) ).

thf(523,plain,
    ! [B: $i,A: $i] :
      ( ( A @ ( B @ unordered_pair ) )
     != A ),
    inference(pattern_uni,[status(thm)],[522:[bind(A,$thf( A )),bind(B,$thf( B )),bind(C,$thf( B )),bind(D,$thf( A ))]]) ).

thf(32,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( B @ ( C @ in ) )
      | ( C != A )
      | ( B
       != ( A @ singleton ) ) ),
    inference(cnfConj,[status(thm)],[30]) ).

thf(45,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( B @ ( C @ in ) )
      | ( C != A )
      | ( B
       != ( A @ singleton ) ) ),
    inference(lifteq,[status(thm)],[32]) ).

thf(46,plain,
    ! [A: $i] : ( A @ singleton @ ( A @ in ) ),
    inference(simp,[status(thm)],[45]) ).

thf(8764,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk12 @ singleton @ ( sk1 @ in ) ) )
      | ( ( sk13 @ singleton )
       != sk2 )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,1718]) ).

thf(8765,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk12 @ singleton @ ( sk1 @ in ) ) )
      | ( ( sk13 @ singleton )
       != sk2 ) ),
    inference(simp,[status(thm)],[8764]) ).

thf(8862,plain,
    ! [A: $i] :
      ( ( ( A @ singleton )
       != ( sk12 @ singleton ) )
      | ( A != sk1 )
      | ( ( sk13 @ singleton )
       != sk2 ) ),
    inference(simp,[status(thm)],[8765]) ).

thf(8883,plain,
    ( ( ( sk12 @ singleton )
     != ( sk1 @ singleton ) )
    | ( ( sk13 @ singleton )
     != sk2 ) ),
    inference(simp,[status(thm)],[8862]) ).

thf(895,plain,
    ! [B: $i,A: $i] :
      ( ( B != sk13 )
      | ( A != sk12 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,113]) ).

thf(896,plain,
    ! [A: $i] :
      ( ( A != sk12 )
      | ~ ( A @ singleton @ ( sk13 @ in ) ) ),
    inference(pattern_uni,[status(thm)],[895:[bind(A,$thf( A )),bind(B,$thf( sk13 ))]]) ).

thf(1103,plain,
    ~ ( sk12 @ singleton @ ( sk13 @ in ) ),
    inference(simp,[status(thm)],[896]) ).

thf(1231,plain,
    ( ( ( sk12 @ singleton @ ( sk13 @ in ) )
     != ( sk2 @ ( sk1 @ in ) ) )
    | ~ $true ),
    inference(paramod_ordered,[status(thm)],[15,1103]) ).

thf(1232,plain,
    ( ( sk12 @ singleton @ ( sk13 @ in ) )
   != ( sk2 @ ( sk1 @ in ) ) ),
    inference(simp,[status(thm)],[1231]) ).

thf(1257,plain,
    ( ( ( sk12 @ singleton )
     != sk2 )
    | ( sk13 != sk1 ) ),
    inference(simp,[status(thm)],[1232]) ).

thf(1561,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk12 @ singleton ) )
      | ( B != sk2 )
      | ( sk13 != sk1 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1257]) ).

thf(1562,plain,
    ! [A: $i] :
      ( ( A != sk2 )
      | ( sk13 != sk1 )
      | ~ ( sk12 @ singleton @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[1561:[bind(A,$thf( sk12 @ singleton )),bind(B,$thf( B ))]]) ).

thf(1569,plain,
    ( ( sk13 != sk1 )
    | ~ ( sk12 @ singleton @ singleton @ ( sk2 @ in ) ) ),
    inference(simp,[status(thm)],[1562]) ).

thf(126,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( B @ ( C @ in ) ) )
      | ~ $true
      | ~ ( C @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[46,21]) ).

thf(127,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( B @ ( C @ in ) ) )
      | ~ ( C @ ( B @ in ) ) ),
    inference(simp,[status(thm)],[126]) ).

thf(128,plain,
    ! [A: $i] :
      ~ ( A @ ( A @ singleton @ in ) ),
    inference(pattern_uni,[status(thm)],[127:[bind(A,$thf( D )),bind(B,$thf( D @ singleton )),bind(C,$thf( D ))]]) ).

thf(129,plain,
    ! [A: $i] :
      ~ ( A @ ( A @ singleton @ in ) ),
    inference(simp,[status(thm)],[128]) ).

thf(196,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( B @ ( B @ singleton @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,129]) ).

thf(197,plain,
    ! [B: $i,A: $i] :
      ( ( A @ singleton @ ( A @ in ) )
     != ( B @ ( B @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[196]) ).

thf(200,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ singleton )
       != B )
      | ( A
       != ( B @ singleton ) ) ),
    inference(simp,[status(thm)],[197]) ).

thf(202,plain,
    ! [A: $i] :
      ( ( A @ singleton @ singleton )
     != A ),
    inference(simp,[status(thm)],[200]) ).

thf(732,plain,
    ! [B: $i,A: $i] :
      ( ( B != sk2 )
      | ( A != sk1 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,138]) ).

thf(733,plain,
    ! [A: $i] :
      ( ( A != sk1 )
      | ~ ( A @ singleton @ ( sk2 @ in ) ) ),
    inference(pattern_uni,[status(thm)],[732:[bind(A,$thf( A )),bind(B,$thf( sk2 ))]]) ).

thf(1041,plain,
    ~ ( sk1 @ singleton @ ( sk2 @ in ) ),
    inference(simp,[status(thm)],[733]) ).

thf(1145,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk1 @ singleton @ ( sk2 @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,1041]) ).

thf(1146,plain,
    ! [A: $i] :
      ( ( A @ singleton @ ( A @ in ) )
     != ( sk1 @ singleton @ ( sk2 @ in ) ) ),
    inference(simp,[status(thm)],[1145]) ).

thf(1165,plain,
    ! [A: $i] :
      ( ( ( A @ singleton )
       != ( sk1 @ singleton ) )
      | ( A != sk2 ) ),
    inference(simp,[status(thm)],[1146]) ).

thf(1173,plain,
    ( ( sk2 @ singleton )
   != ( sk1 @ singleton ) ),
    inference(simp,[status(thm)],[1165]) ).

thf(16,plain,
    ( ( sk1 = sk3 )
    | ~ ( sk2 @ ( sk3 @ in ) ) ),
    inference(cnfConj,[status(thm)],[14]) ).

thf(18,plain,
    ( ~ ( sk2 @ ( sk3 @ in ) )
    | ( sk3 = sk1 ) ),
    inference(lifteq,[status(thm)],[16]) ).

thf(17,plain,
    ( ( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) )
   != ( sk1 @ singleton ) ),
    inference(cnfConj,[status(thm)],[14]) ).

thf(19,plain,
    ( ( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) )
   != ( sk1 @ singleton ) ),
    inference(lifteq,[status(thm)],[17]) ).

thf(143,plain,
    ( ( sk3 != sk3 )
    | ( ( sk2 @ ( sk1 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) )
     != ( sk1 @ singleton ) )
    | ~ ( sk2 @ ( sk3 @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[18,19]) ).

thf(144,plain,
    ( ( ( sk2 @ ( sk1 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) )
     != ( sk1 @ singleton ) )
    | ~ ( sk2 @ ( sk3 @ in ) ) ),
    inference(pattern_uni,[status(thm)],[143:[]]) ).

thf(160,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk2 @ ( sk3 @ in ) ) )
      | ( ( sk2 @ ( sk1 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) )
       != ( sk1 @ singleton ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,144]) ).

thf(161,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk2 @ ( sk3 @ in ) ) )
      | ( ( sk2 @ ( sk1 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) )
       != ( sk1 @ singleton ) ) ),
    inference(simp,[status(thm)],[160]) ).

thf(166,plain,
    ! [A: $i] :
      ( ( ( A @ singleton )
       != sk2 )
      | ( A != sk3 )
      | ( ( sk2 @ ( sk1 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) )
       != ( sk1 @ singleton ) ) ),
    inference(simp,[status(thm)],[161]) ).

thf(168,plain,
    ( ( ( sk3 @ singleton )
     != sk2 )
    | ( ( sk2 @ ( sk1 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) )
     != ( sk1 @ singleton ) ) ),
    inference(simp,[status(thm)],[166]) ).

thf(213,plain,
    ! [A: $i] :
      ( ( ( A @ ( A @ set_intersection2 ) )
       != ( sk2 @ ( sk1 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) ) )
      | ( ( sk3 @ singleton )
       != sk2 )
      | ( A
       != ( sk1 @ singleton ) ) ),
    inference(paramod_ordered,[status(thm)],[105,168]) ).

thf(217,plain,
    ( ( ( sk1 @ singleton )
     != sk2 )
    | ( ( sk1 @ ( sk1 @ unordered_pair ) )
     != ( sk1 @ singleton ) )
    | ( ( sk3 @ singleton )
     != sk2 ) ),
    inference(simp,[status(thm)],[213]) ).

thf(9103,plain,
    ! [B: $i,A: $i] :
      ( ( B != sk2 )
      | ( A != sk1 )
      | ( A @ ( A @ ( A @ ( B @ sk11 ) ) @ in ) )
      | ( B @ ( A @ ( A @ sk9 ) ) ) ),
    inference(paramod_ordered,[status(thm)],[2132,138]) ).

thf(9104,plain,
    ! [A: $i] :
      ( ( A != sk1 )
      | ( A @ ( A @ ( A @ ( sk2 @ sk11 ) ) @ in ) )
      | ( sk2 @ ( A @ ( A @ sk9 ) ) ) ),
    inference(pattern_uni,[status(thm)],[9103:[bind(A,$thf( A )),bind(B,$thf( sk2 ))]]) ).

thf(10832,plain,
    ( ( sk1 @ ( sk1 @ ( sk1 @ ( sk2 @ sk11 ) ) @ in ) )
    | ( sk2 @ ( sk1 @ ( sk1 @ sk9 ) ) ) ),
    inference(simp,[status(thm)],[9104]) ).

thf(131,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk1 @ ( sk2 @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,116]) ).

thf(132,plain,
    ! [A: $i] :
      ( ( A @ singleton @ ( A @ in ) )
     != ( sk1 @ ( sk2 @ in ) ) ),
    inference(simp,[status(thm)],[131]) ).

thf(135,plain,
    ! [A: $i] :
      ( ( ( A @ singleton )
       != sk1 )
      | ( A != sk2 ) ),
    inference(simp,[status(thm)],[132]) ).

thf(137,plain,
    ( ( sk2 @ singleton )
   != sk1 ),
    inference(simp,[status(thm)],[135]) ).

thf(803,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk2 @ singleton ) )
      | ( B != sk1 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,137]) ).

thf(804,plain,
    ! [A: $i] :
      ( ( A != sk1 )
      | ~ ( sk2 @ singleton @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[803:[bind(A,$thf( sk2 @ singleton )),bind(B,$thf( B ))]]) ).

thf(1070,plain,
    ~ ( sk2 @ singleton @ singleton @ ( sk1 @ in ) ),
    inference(simp,[status(thm)],[804]) ).

thf(1423,plain,
    ( ( ( sk2 @ singleton @ singleton @ ( sk1 @ in ) )
     != ( sk2 @ ( sk1 @ in ) ) )
    | ~ $true ),
    inference(paramod_ordered,[status(thm)],[15,1070]) ).

thf(1424,plain,
    ( ( sk2 @ singleton @ singleton @ ( sk1 @ in ) )
   != ( sk2 @ ( sk1 @ in ) ) ),
    inference(simp,[status(thm)],[1423]) ).

thf(1459,plain,
    ( ( ( sk2 @ singleton @ singleton )
     != sk2 )
    | ( sk1 != sk1 ) ),
    inference(simp,[status(thm)],[1424]) ).

thf(1467,plain,
    ( ( sk2 @ singleton @ singleton )
   != sk2 ),
    inference(simp,[status(thm)],[1459]) ).

thf(1486,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk2 @ singleton @ singleton ) )
      | ( B != sk2 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1467]) ).

thf(1487,plain,
    ! [A: $i] :
      ( ( A != sk2 )
      | ~ ( sk2 @ singleton @ singleton @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[1486:[bind(A,$thf( sk2 @ singleton @ singleton )),bind(B,$thf( B ))]]) ).

thf(1497,plain,
    ~ ( sk2 @ singleton @ singleton @ singleton @ ( sk2 @ in ) ),
    inference(simp,[status(thm)],[1487]) ).

thf(5,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ set_intersection2 ) )
      = ( A @ ( B @ set_intersection2 ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',commutativity_k3_xboole_0) ).

thf(25,plain,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ set_intersection2 ) )
      = ( A @ ( B @ set_intersection2 ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[5]) ).

thf(26,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ set_intersection2 ) )
      = ( A @ ( B @ set_intersection2 ) ) ),
    inference(cnf,[status(esa)],[25]) ).

thf(27,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ set_intersection2 ) )
      = ( A @ ( B @ set_intersection2 ) ) ),
    inference(lifteq,[status(thm)],[26]) ).

thf(280,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ set_intersection2 ) )
       != ( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) ) )
      | ( ( A @ ( B @ set_intersection2 ) )
       != ( sk1 @ singleton ) ) ),
    inference(paramod_ordered,[status(thm)],[27,19]) ).

thf(281,plain,
    ( ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk2 @ set_intersection2 ) )
   != ( sk1 @ singleton ) ),
    inference(pattern_uni,[status(thm)],[280:[bind(A,$thf( sk3 @ ( sk1 @ unordered_pair ) )),bind(B,$thf( sk2 ))]]) ).

thf(821,plain,
    ! [B: $i,A: $i] :
      ( ( B
       != ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk2 @ set_intersection2 ) ) )
      | ( A
       != ( sk1 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,281]) ).

thf(822,plain,
    ! [A: $i] :
      ( ( A
       != ( sk1 @ singleton ) )
      | ~ ( A @ singleton @ ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk2 @ set_intersection2 ) @ in ) ) ),
    inference(pattern_uni,[status(thm)],[821:[bind(A,$thf( A )),bind(B,$thf( sk3 @ ( sk1 @ unordered_pair ) @ ( sk2 @ set_intersection2 ) ))]]) ).

thf(1078,plain,
    ~ ( sk1 @ singleton @ singleton @ ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk2 @ set_intersection2 ) @ in ) ),
    inference(simp,[status(thm)],[822]) ).

thf(1280,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
       != ( sk13 @ singleton @ ( sk12 @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[65,1104]) ).

thf(1281,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
     != ( sk13 @ singleton @ ( sk12 @ in ) ) ),
    inference(simp,[status(thm)],[1280]) ).

thf(1297,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != ( sk13 @ singleton ) )
      | ( A != sk12 ) ),
    inference(simp,[status(thm)],[1281]) ).

thf(1303,plain,
    ! [A: $i] :
      ( ( A @ ( sk12 @ unordered_pair ) )
     != ( sk13 @ singleton ) ),
    inference(simp,[status(thm)],[1297]) ).

thf(8330,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( A
       != ( C @ ( sk12 @ unordered_pair ) ) )
      | ( B
       != ( sk13 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1303]) ).

thf(8331,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk13 @ singleton ) )
      | ~ ( B @ ( sk12 @ unordered_pair ) @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[8330:[bind(A,$thf( E @ ( sk12 @ unordered_pair ) )),bind(B,$thf( B )),bind(C,$thf( E ))]]) ).

thf(8342,plain,
    ! [A: $i] :
      ~ ( A @ ( sk12 @ unordered_pair ) @ singleton @ ( sk13 @ singleton @ in ) ),
    inference(simp,[status(thm)],[8331]) ).

thf(1559,plain,
    ! [B: $i,A: $i] :
      ( ( A != sk13 )
      | ( ( sk12 @ singleton )
       != sk2 )
      | ( B != sk1 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1257]) ).

thf(1560,plain,
    ! [A: $i] :
      ( ( ( sk12 @ singleton )
       != sk2 )
      | ( A != sk1 )
      | ~ ( sk13 @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[1559:[bind(A,$thf( sk13 ))]]) ).

thf(1568,plain,
    ( ( ( sk12 @ singleton )
     != sk2 )
    | ~ ( sk13 @ singleton @ ( sk1 @ in ) ) ),
    inference(simp,[status(thm)],[1560]) ).

thf(6575,plain,
    ( ( ( sk13 @ singleton @ ( sk1 @ in ) )
     != ( sk2 @ ( sk1 @ in ) ) )
    | ( ( sk12 @ singleton )
     != sk2 )
    | ~ $true ),
    inference(paramod_ordered,[status(thm)],[15,1568]) ).

thf(6576,plain,
    ( ( ( sk13 @ singleton @ ( sk1 @ in ) )
     != ( sk2 @ ( sk1 @ in ) ) )
    | ( ( sk12 @ singleton )
     != sk2 ) ),
    inference(simp,[status(thm)],[6575]) ).

thf(6671,plain,
    ( ( ( sk13 @ singleton )
     != sk2 )
    | ( sk1 != sk1 )
    | ( ( sk12 @ singleton )
     != sk2 ) ),
    inference(simp,[status(thm)],[6576]) ).

thf(6685,plain,
    ( ( ( sk13 @ singleton )
     != sk2 )
    | ( ( sk12 @ singleton )
     != sk2 ) ),
    inference(simp,[status(thm)],[6671]) ).

thf(7175,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk12 @ singleton ) )
      | ( ( sk13 @ singleton )
       != sk2 )
      | ( B != sk2 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,6685]) ).

thf(7176,plain,
    ! [A: $i] :
      ( ( ( sk13 @ singleton )
       != sk2 )
      | ( A != sk2 )
      | ~ ( sk12 @ singleton @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[7175:[bind(A,$thf( sk12 @ singleton )),bind(B,$thf( B ))]]) ).

thf(7188,plain,
    ( ( ( sk13 @ singleton )
     != sk2 )
    | ~ ( sk12 @ singleton @ singleton @ ( sk2 @ in ) ) ),
    inference(simp,[status(thm)],[7176]) ).

thf(799,plain,
    ! [B: $i,A: $i] :
      ( ( B
       != ( sk2 @ singleton ) )
      | ( A != sk1 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,137]) ).

thf(800,plain,
    ! [A: $i] :
      ( ( A != sk1 )
      | ~ ( A @ singleton @ ( sk2 @ singleton @ in ) ) ),
    inference(pattern_uni,[status(thm)],[799:[bind(A,$thf( A )),bind(B,$thf( sk2 @ singleton ))]]) ).

thf(1069,plain,
    ~ ( sk1 @ singleton @ ( sk2 @ singleton @ in ) ),
    inference(simp,[status(thm)],[800]) ).

thf(1328,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk1 @ singleton @ ( sk2 @ singleton @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,1069]) ).

thf(1329,plain,
    ! [A: $i] :
      ( ( A @ singleton @ ( A @ in ) )
     != ( sk1 @ singleton @ ( sk2 @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[1328]) ).

thf(1359,plain,
    ! [A: $i] :
      ( ( ( A @ singleton )
       != ( sk1 @ singleton ) )
      | ( A
       != ( sk2 @ singleton ) ) ),
    inference(simp,[status(thm)],[1329]) ).

thf(1367,plain,
    ( ( sk2 @ singleton @ singleton )
   != ( sk1 @ singleton ) ),
    inference(simp,[status(thm)],[1359]) ).

thf(1603,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk2 @ singleton @ singleton ) )
      | ( B
       != ( sk1 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1367]) ).

thf(1604,plain,
    ! [A: $i] :
      ( ( A
       != ( sk1 @ singleton ) )
      | ~ ( sk2 @ singleton @ singleton @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[1603:[bind(A,$thf( sk2 @ singleton @ singleton )),bind(B,$thf( B ))]]) ).

thf(1609,plain,
    ~ ( sk2 @ singleton @ singleton @ singleton @ ( sk1 @ singleton @ in ) ),
    inference(simp,[status(thm)],[1604]) ).

thf(6005,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk2 @ singleton @ singleton @ singleton @ ( sk1 @ singleton @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,1609]) ).

thf(6006,plain,
    ! [A: $i] :
      ( ( A @ singleton @ ( A @ in ) )
     != ( sk2 @ singleton @ singleton @ singleton @ ( sk1 @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[6005]) ).

thf(6120,plain,
    ! [A: $i] :
      ( ( ( A @ singleton )
       != ( sk2 @ singleton @ singleton @ singleton ) )
      | ( A
       != ( sk1 @ singleton ) ) ),
    inference(simp,[status(thm)],[6006]) ).

thf(6148,plain,
    ( ( sk2 @ singleton @ singleton @ singleton )
   != ( sk1 @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[6120]) ).

thf(6939,plain,
    ! [B: $i,A: $i] :
      ( ( B
       != ( sk2 @ singleton @ singleton @ singleton ) )
      | ( A
       != ( sk1 @ singleton @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,6148]) ).

thf(6940,plain,
    ! [A: $i] :
      ( ( A
       != ( sk1 @ singleton @ singleton ) )
      | ~ ( A @ singleton @ ( sk2 @ singleton @ singleton @ singleton @ in ) ) ),
    inference(pattern_uni,[status(thm)],[6939:[bind(A,$thf( A )),bind(B,$thf( sk2 @ singleton @ singleton @ singleton ))]]) ).

thf(6964,plain,
    ~ ( sk1 @ singleton @ singleton @ singleton @ ( sk2 @ singleton @ singleton @ singleton @ in ) ),
    inference(simp,[status(thm)],[6940]) ).

thf(25020,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk1 @ singleton @ singleton @ singleton @ ( sk2 @ singleton @ singleton @ singleton @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,6964]) ).

thf(25021,plain,
    ! [A: $i] :
      ( ( A @ singleton @ ( A @ in ) )
     != ( sk1 @ singleton @ singleton @ singleton @ ( sk2 @ singleton @ singleton @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[25020]) ).

thf(25268,plain,
    ! [A: $i] :
      ( ( ( A @ singleton )
       != ( sk1 @ singleton @ singleton @ singleton ) )
      | ( A
       != ( sk2 @ singleton @ singleton @ singleton ) ) ),
    inference(simp,[status(thm)],[25021]) ).

thf(25311,plain,
    ( ( sk2 @ singleton @ singleton @ singleton @ singleton )
   != ( sk1 @ singleton @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[25268]) ).

thf(222,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
       != ( sk1 @ ( sk2 @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[65,116]) ).

thf(223,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
     != ( sk1 @ ( sk2 @ in ) ) ),
    inference(simp,[status(thm)],[222]) ).

thf(241,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != sk1 )
      | ( A != sk2 ) ),
    inference(simp,[status(thm)],[223]) ).

thf(244,plain,
    ! [A: $i] :
      ( ( A @ ( sk2 @ unordered_pair ) )
     != sk1 ),
    inference(simp,[status(thm)],[241]) ).

thf(252,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( A @ ( B @ unordered_pair ) )
       != ( C @ ( sk2 @ unordered_pair ) ) )
      | ( ( B @ ( A @ unordered_pair ) )
       != sk1 ) ),
    inference(paramod_ordered,[status(thm)],[24,244]) ).

thf(253,plain,
    ! [A: $i] :
      ( ( sk2 @ ( A @ unordered_pair ) )
     != sk1 ),
    inference(pattern_uni,[status(thm)],[252:[bind(A,$thf( A )),bind(B,$thf( sk2 )),bind(C,$thf( A ))]]) ).

thf(614,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( A
       != ( sk2 @ ( C @ unordered_pair ) ) )
      | ( B != sk1 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,253]) ).

thf(615,plain,
    ! [B: $i,A: $i] :
      ( ( A != sk1 )
      | ~ ( sk2 @ ( B @ unordered_pair ) @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[614:[bind(A,$thf( sk2 @ ( D @ unordered_pair ) )),bind(B,$thf( B )),bind(C,$thf( D ))]]) ).

thf(1001,plain,
    ! [A: $i] :
      ~ ( sk2 @ ( A @ unordered_pair ) @ singleton @ ( sk1 @ in ) ),
    inference(simp,[status(thm)],[615]) ).

thf(7335,plain,
    ! [A: $i] :
      ( ( ( sk2 @ ( A @ unordered_pair ) @ singleton @ ( sk1 @ in ) )
       != ( sk2 @ ( sk1 @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[15,1001]) ).

thf(7336,plain,
    ! [A: $i] :
      ( ( sk2 @ ( A @ unordered_pair ) @ singleton @ ( sk1 @ in ) )
     != ( sk2 @ ( sk1 @ in ) ) ),
    inference(simp,[status(thm)],[7335]) ).

thf(7424,plain,
    ! [A: $i] :
      ( ( ( sk2 @ ( A @ unordered_pair ) @ singleton )
       != sk2 )
      | ( sk1 != sk1 ) ),
    inference(simp,[status(thm)],[7336]) ).

thf(7431,plain,
    ! [A: $i] :
      ( ( sk2 @ ( A @ unordered_pair ) @ singleton )
     != sk2 ),
    inference(simp,[status(thm)],[7424]) ).

thf(1597,plain,
    ! [B: $i,A: $i] :
      ( ( B
       != ( sk2 @ singleton @ singleton ) )
      | ( A
       != ( sk1 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1367]) ).

thf(1598,plain,
    ! [A: $i] :
      ( ( A
       != ( sk1 @ singleton ) )
      | ~ ( A @ singleton @ ( sk2 @ singleton @ singleton @ in ) ) ),
    inference(pattern_uni,[status(thm)],[1597:[bind(A,$thf( A )),bind(B,$thf( sk2 @ singleton @ singleton ))]]) ).

thf(1614,plain,
    ~ ( sk1 @ singleton @ singleton @ ( sk2 @ singleton @ singleton @ in ) ),
    inference(simp,[status(thm)],[1598]) ).

thf(6150,plain,
    ( ( ( sk1 @ singleton @ singleton @ ( sk2 @ singleton @ singleton @ in ) )
     != ( sk2 @ ( sk1 @ in ) ) )
    | ~ $true ),
    inference(paramod_ordered,[status(thm)],[15,1614]) ).

thf(6151,plain,
    ( ( sk1 @ singleton @ singleton @ ( sk2 @ singleton @ singleton @ in ) )
   != ( sk2 @ ( sk1 @ in ) ) ),
    inference(simp,[status(thm)],[6150]) ).

thf(6268,plain,
    ( ( ( sk1 @ singleton @ singleton )
     != sk2 )
    | ( ( sk2 @ singleton @ singleton )
     != sk1 ) ),
    inference(simp,[status(thm)],[6151]) ).

thf(31,plain,
    ! [B: $i,A: $i] :
      ( ( B
        = ( A @ singleton ) )
      | ~ ( B @ ( A @ ( B @ sk5 ) @ in ) )
      | ( ( A @ ( B @ sk4 ) )
       != A ) ),
    inference(cnfConj,[status(thm)],[30]) ).

thf(41,plain,
    ! [B: $i,A: $i] :
      ( ~ ( B @ ( A @ ( B @ sk5 ) @ in ) )
      | ( B
        = ( A @ singleton ) )
      | ( ( A @ ( B @ sk4 ) )
       != A ) ),
    inference(lifteq,[status(thm)],[31]) ).

thf(42,plain,
    ! [B: $i,A: $i] :
      ( ~ ( B @ ( A @ ( B @ sk5 ) @ in ) )
      | ( B
        = ( A @ singleton ) )
      | ( ( A @ ( B @ sk4 ) )
       != A ) ),
    inference(simp,[status(thm)],[41]) ).

thf(1326,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
       != ( sk1 @ singleton @ ( sk2 @ singleton @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[69,1069]) ).

thf(1327,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
     != ( sk1 @ singleton @ ( sk2 @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[1326]) ).

thf(1358,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != ( sk1 @ singleton ) )
      | ( B
       != ( sk2 @ singleton ) ) ),
    inference(simp,[status(thm)],[1327]) ).

thf(1366,plain,
    ! [A: $i] :
      ( ( sk2 @ singleton @ ( A @ unordered_pair ) )
     != ( sk1 @ singleton ) ),
    inference(simp,[status(thm)],[1358]) ).

thf(1243,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
       != ( sk12 @ singleton @ ( sk13 @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[65,1103]) ).

thf(1244,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
     != ( sk12 @ singleton @ ( sk13 @ in ) ) ),
    inference(simp,[status(thm)],[1243]) ).

thf(1259,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != ( sk12 @ singleton ) )
      | ( A != sk13 ) ),
    inference(simp,[status(thm)],[1244]) ).

thf(1265,plain,
    ! [A: $i] :
      ( ( A @ ( sk13 @ unordered_pair ) )
     != ( sk12 @ singleton ) ),
    inference(simp,[status(thm)],[1259]) ).

thf(1235,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk12 @ singleton @ ( sk13 @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,1103]) ).

thf(1236,plain,
    ! [A: $i] :
      ( ( A @ singleton @ ( A @ in ) )
     != ( sk12 @ singleton @ ( sk13 @ in ) ) ),
    inference(simp,[status(thm)],[1235]) ).

thf(1260,plain,
    ! [A: $i] :
      ( ( ( A @ singleton )
       != ( sk12 @ singleton ) )
      | ( A != sk13 ) ),
    inference(simp,[status(thm)],[1236]) ).

thf(1266,plain,
    ( ( sk13 @ singleton )
   != ( sk12 @ singleton ) ),
    inference(simp,[status(thm)],[1260]) ).

thf(1415,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk13 @ singleton ) )
      | ( B
       != ( sk12 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1266]) ).

thf(1416,plain,
    ! [A: $i] :
      ( ( A
       != ( sk12 @ singleton ) )
      | ~ ( sk13 @ singleton @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[1415:[bind(A,$thf( sk13 @ singleton )),bind(B,$thf( B ))]]) ).

thf(1421,plain,
    ~ ( sk13 @ singleton @ singleton @ ( sk12 @ singleton @ in ) ),
    inference(simp,[status(thm)],[1416]) ).

thf(2289,plain,
    ( ( ( sk13 @ singleton @ singleton @ ( sk12 @ singleton @ in ) )
     != ( sk2 @ ( sk1 @ in ) ) )
    | ~ $true ),
    inference(paramod_ordered,[status(thm)],[15,1421]) ).

thf(2290,plain,
    ( ( sk13 @ singleton @ singleton @ ( sk12 @ singleton @ in ) )
   != ( sk2 @ ( sk1 @ in ) ) ),
    inference(simp,[status(thm)],[2289]) ).

thf(2339,plain,
    ( ( ( sk13 @ singleton @ singleton )
     != sk2 )
    | ( ( sk12 @ singleton )
     != sk1 ) ),
    inference(simp,[status(thm)],[2290]) ).

thf(1233,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
       != ( sk12 @ singleton @ ( sk13 @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[69,1103]) ).

thf(1234,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
     != ( sk12 @ singleton @ ( sk13 @ in ) ) ),
    inference(simp,[status(thm)],[1233]) ).

thf(1258,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != ( sk12 @ singleton ) )
      | ( B != sk13 ) ),
    inference(simp,[status(thm)],[1234]) ).

thf(1264,plain,
    ! [A: $i] :
      ( ( sk13 @ ( A @ unordered_pair ) )
     != ( sk12 @ singleton ) ),
    inference(simp,[status(thm)],[1258]) ).

thf(9841,plain,
    ! [B: $i,A: $i] :
      ( ( A != sk13 )
      | ( B != sk12 )
      | ( A @ ( A @ ( A @ ( B @ sk11 ) ) @ in ) )
      | ( B @ ( A @ ( A @ sk9 ) ) ) ),
    inference(paramod_ordered,[status(thm)],[2132,113]) ).

thf(9842,plain,
    ! [A: $i] :
      ( ( A != sk12 )
      | ( sk13 @ ( sk13 @ ( sk13 @ ( A @ sk11 ) ) @ in ) )
      | ( A @ ( sk13 @ ( sk13 @ sk9 ) ) ) ),
    inference(pattern_uni,[status(thm)],[9841:[bind(A,$thf( sk13 ))]]) ).

thf(10719,plain,
    ( ( sk13 @ ( sk13 @ ( sk13 @ ( sk12 @ sk11 ) ) @ in ) )
    | ( sk12 @ ( sk13 @ ( sk13 @ sk9 ) ) ) ),
    inference(simp,[status(thm)],[9842]) ).

thf(1411,plain,
    ! [B: $i,A: $i] :
      ( ( B
       != ( sk13 @ singleton ) )
      | ( A
       != ( sk12 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1266]) ).

thf(1412,plain,
    ! [A: $i] :
      ( ( A
       != ( sk12 @ singleton ) )
      | ~ ( A @ singleton @ ( sk13 @ singleton @ in ) ) ),
    inference(pattern_uni,[status(thm)],[1411:[bind(A,$thf( A )),bind(B,$thf( sk13 @ singleton ))]]) ).

thf(1420,plain,
    ~ ( sk12 @ singleton @ singleton @ ( sk13 @ singleton @ in ) ),
    inference(simp,[status(thm)],[1412]) ).

thf(2223,plain,
    ( ( ( sk12 @ singleton @ singleton @ ( sk13 @ singleton @ in ) )
     != ( sk2 @ ( sk1 @ in ) ) )
    | ~ $true ),
    inference(paramod_ordered,[status(thm)],[15,1420]) ).

thf(2224,plain,
    ( ( sk12 @ singleton @ singleton @ ( sk13 @ singleton @ in ) )
   != ( sk2 @ ( sk1 @ in ) ) ),
    inference(simp,[status(thm)],[2223]) ).

thf(2274,plain,
    ( ( ( sk12 @ singleton @ singleton )
     != sk2 )
    | ( ( sk13 @ singleton )
     != sk1 ) ),
    inference(simp,[status(thm)],[2224]) ).

thf(8200,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( B
       != ( C @ ( sk13 @ unordered_pair ) ) )
      | ( A
       != ( sk12 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1265]) ).

thf(8201,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk12 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ ( sk13 @ unordered_pair ) @ in ) ) ),
    inference(pattern_uni,[status(thm)],[8200:[bind(A,$thf( A )),bind(B,$thf( E @ ( sk13 @ unordered_pair ) )),bind(C,$thf( E ))]]) ).

thf(8214,plain,
    ! [A: $i] :
      ~ ( sk12 @ singleton @ singleton @ ( A @ ( sk13 @ unordered_pair ) @ in ) ),
    inference(simp,[status(thm)],[8201]) ).

thf(1311,plain,
    ! [B: $i,A: $i] :
      ( ( B
       != ( sk2 @ singleton ) )
      | ( A
       != ( sk1 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1173]) ).

thf(1312,plain,
    ! [A: $i] :
      ( ( A
       != ( sk1 @ singleton ) )
      | ~ ( A @ singleton @ ( sk2 @ singleton @ in ) ) ),
    inference(pattern_uni,[status(thm)],[1311:[bind(A,$thf( A )),bind(B,$thf( sk2 @ singleton ))]]) ).

thf(1319,plain,
    ~ ( sk1 @ singleton @ singleton @ ( sk2 @ singleton @ in ) ),
    inference(simp,[status(thm)],[1312]) ).

thf(8544,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( B
       != ( sk2 @ ( C @ unordered_pair ) @ singleton ) )
      | ( A != sk2 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,7431]) ).

thf(8545,plain,
    ! [B: $i,A: $i] :
      ( ( A != sk2 )
      | ~ ( A @ singleton @ ( sk2 @ ( B @ unordered_pair ) @ singleton @ in ) ) ),
    inference(pattern_uni,[status(thm)],[8544:[bind(A,$thf( A )),bind(B,$thf( sk2 @ ( E @ unordered_pair ) @ singleton )),bind(C,$thf( E ))]]) ).

thf(8571,plain,
    ! [A: $i] :
      ~ ( sk2 @ singleton @ ( sk2 @ ( A @ unordered_pair ) @ singleton @ in ) ),
    inference(simp,[status(thm)],[8545]) ).

thf(1223,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk2 @ singleton ) )
      | ( B != sk2 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1210]) ).

thf(1224,plain,
    ! [A: $i] :
      ( ( A != sk2 )
      | ~ ( sk2 @ singleton @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[1223:[bind(A,$thf( sk2 @ singleton )),bind(B,$thf( B ))]]) ).

thf(1229,plain,
    ~ ( sk2 @ singleton @ singleton @ ( sk2 @ in ) ),
    inference(simp,[status(thm)],[1224]) ).

thf(1504,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk2 @ singleton @ singleton @ ( sk2 @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,1229]) ).

thf(1505,plain,
    ! [A: $i] :
      ( ( A @ singleton @ ( A @ in ) )
     != ( sk2 @ singleton @ singleton @ ( sk2 @ in ) ) ),
    inference(simp,[status(thm)],[1504]) ).

thf(1537,plain,
    ! [A: $i] :
      ( ( ( A @ singleton )
       != ( sk2 @ singleton @ singleton ) )
      | ( A != sk2 ) ),
    inference(simp,[status(thm)],[1505]) ).

thf(1539,plain,
    ( ( sk2 @ singleton @ singleton )
   != ( sk2 @ singleton ) ),
    inference(simp,[status(thm)],[1537]) ).

thf(1631,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk2 @ singleton @ singleton ) )
      | ( B
       != ( sk2 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1539]) ).

thf(1632,plain,
    ! [A: $i] :
      ( ( A
       != ( sk2 @ singleton ) )
      | ~ ( sk2 @ singleton @ singleton @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[1631:[bind(A,$thf( sk2 @ singleton @ singleton )),bind(B,$thf( B ))]]) ).

thf(1637,plain,
    ~ ( sk2 @ singleton @ singleton @ singleton @ ( sk2 @ singleton @ in ) ),
    inference(simp,[status(thm)],[1632]) ).

thf(6303,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk2 @ singleton @ singleton @ singleton @ ( sk2 @ singleton @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,1637]) ).

thf(6304,plain,
    ! [A: $i] :
      ( ( A @ singleton @ ( A @ in ) )
     != ( sk2 @ singleton @ singleton @ singleton @ ( sk2 @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[6303]) ).

thf(6416,plain,
    ! [A: $i] :
      ( ( ( A @ singleton )
       != ( sk2 @ singleton @ singleton @ singleton ) )
      | ( A
       != ( sk2 @ singleton ) ) ),
    inference(simp,[status(thm)],[6304]) ).

thf(6428,plain,
    ( ( sk2 @ singleton @ singleton @ singleton )
   != ( sk2 @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[6416]) ).

thf(7035,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk2 @ singleton @ singleton @ singleton ) )
      | ( B
       != ( sk2 @ singleton @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,6428]) ).

thf(7036,plain,
    ! [A: $i] :
      ( ( A
       != ( sk2 @ singleton @ singleton ) )
      | ~ ( sk2 @ singleton @ singleton @ singleton @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[7035:[bind(A,$thf( sk2 @ singleton @ singleton @ singleton )),bind(B,$thf( B ))]]) ).

thf(7059,plain,
    ~ ( sk2 @ singleton @ singleton @ singleton @ singleton @ ( sk2 @ singleton @ singleton @ in ) ),
    inference(simp,[status(thm)],[7036]) ).

thf(25655,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk2 @ singleton @ singleton @ singleton @ singleton @ ( sk2 @ singleton @ singleton @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,7059]) ).

thf(25656,plain,
    ! [A: $i] :
      ( ( A @ singleton @ ( A @ in ) )
     != ( sk2 @ singleton @ singleton @ singleton @ singleton @ ( sk2 @ singleton @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[25655]) ).

thf(25905,plain,
    ! [A: $i] :
      ( ( ( A @ singleton )
       != ( sk2 @ singleton @ singleton @ singleton @ singleton ) )
      | ( A
       != ( sk2 @ singleton @ singleton ) ) ),
    inference(simp,[status(thm)],[25656]) ).

thf(25929,plain,
    ( ( sk2 @ singleton @ singleton @ singleton @ singleton )
   != ( sk2 @ singleton @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[25905]) ).

thf(7096,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( A
       != ( sk13 @ ( C @ unordered_pair ) ) )
      | ( B
       != ( sk12 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1264]) ).

thf(7097,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk12 @ singleton ) )
      | ~ ( sk13 @ ( B @ unordered_pair ) @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[7096:[bind(A,$thf( sk13 @ ( D @ unordered_pair ) )),bind(B,$thf( B )),bind(C,$thf( D ))]]) ).

thf(7112,plain,
    ! [A: $i] :
      ~ ( sk13 @ ( A @ unordered_pair ) @ singleton @ ( sk12 @ singleton @ in ) ),
    inference(simp,[status(thm)],[7097]) ).

thf(164,plain,
    ( ( ( sk2 @ ( sk3 @ in ) )
     != ( sk2 @ ( sk1 @ in ) ) )
    | ( ( sk2 @ ( sk1 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) )
     != ( sk1 @ singleton ) )
    | ~ $true ),
    inference(paramod_ordered,[status(thm)],[15,144]) ).

thf(165,plain,
    ( ( ( sk2 @ ( sk3 @ in ) )
     != ( sk2 @ ( sk1 @ in ) ) )
    | ( ( sk2 @ ( sk1 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) )
     != ( sk1 @ singleton ) ) ),
    inference(simp,[status(thm)],[164]) ).

thf(167,plain,
    ( ( sk2 != sk2 )
    | ( sk3 != sk1 )
    | ( ( sk2 @ ( sk1 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) )
     != ( sk1 @ singleton ) ) ),
    inference(simp,[status(thm)],[165]) ).

thf(169,plain,
    ( ( sk3 != sk1 )
    | ( ( sk2 @ ( sk1 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) )
     != ( sk1 @ singleton ) ) ),
    inference(simp,[status(thm)],[167]) ).

thf(260,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ set_intersection2 ) )
       != ( sk2 @ ( sk1 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) ) )
      | ( sk3 != sk1 )
      | ( ( A @ ( B @ set_intersection2 ) )
       != ( sk1 @ singleton ) ) ),
    inference(paramod_ordered,[status(thm)],[27,169]) ).

thf(261,plain,
    ( ( sk3 != sk1 )
    | ( ( sk1 @ ( sk1 @ unordered_pair ) @ ( sk2 @ set_intersection2 ) )
     != ( sk1 @ singleton ) ) ),
    inference(pattern_uni,[status(thm)],[260:[bind(A,$thf( sk1 @ ( sk1 @ unordered_pair ) )),bind(B,$thf( sk2 ))]]) ).

thf(1425,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
       != ( sk2 @ singleton @ singleton @ ( sk1 @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[69,1070]) ).

thf(1426,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
     != ( sk2 @ singleton @ singleton @ ( sk1 @ in ) ) ),
    inference(simp,[status(thm)],[1425]) ).

thf(1457,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != ( sk2 @ singleton @ singleton ) )
      | ( B != sk1 ) ),
    inference(simp,[status(thm)],[1426]) ).

thf(1465,plain,
    ! [A: $i] :
      ( ( sk1 @ ( A @ unordered_pair ) )
     != ( sk2 @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[1457]) ).

thf(1270,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
       != ( sk13 @ singleton @ ( sk12 @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[69,1104]) ).

thf(1271,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
     != ( sk13 @ singleton @ ( sk12 @ in ) ) ),
    inference(simp,[status(thm)],[1270]) ).

thf(1296,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != ( sk13 @ singleton ) )
      | ( B != sk12 ) ),
    inference(simp,[status(thm)],[1271]) ).

thf(1302,plain,
    ! [A: $i] :
      ( ( sk12 @ ( A @ unordered_pair ) )
     != ( sk13 @ singleton ) ),
    inference(simp,[status(thm)],[1296]) ).

thf(174,plain,
    ! [A: $i] :
      ( ( ( A @ ( A @ set_intersection2 ) )
       != ( sk2 @ ( sk1 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) ) )
      | ( A
       != ( sk1 @ singleton ) )
      | ~ ( sk2 @ ( sk3 @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[105,144]) ).

thf(179,plain,
    ( ( ( sk1 @ singleton )
     != sk2 )
    | ( ( sk1 @ ( sk1 @ unordered_pair ) )
     != ( sk1 @ singleton ) )
    | ~ ( sk2 @ ( sk3 @ in ) ) ),
    inference(simp,[status(thm)],[174]) ).

thf(724,plain,
    ! [B: $i,A: $i] :
      ( ( ( sk2 @ ( sk1 @ in ) )
       != ( A @ singleton @ ( B @ in ) ) )
      | ~ $true
      | ( B = A ) ),
    inference(paramod_ordered,[status(thm)],[15,40]) ).

thf(725,plain,
    ! [B: $i,A: $i] :
      ( ( ( sk2 @ ( sk1 @ in ) )
       != ( A @ singleton @ ( B @ in ) ) )
      | ( B = A ) ),
    inference(simp,[status(thm)],[724]) ).

thf(991,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ singleton )
       != sk2 )
      | ( sk1 != B )
      | ( B = A ) ),
    inference(simp,[status(thm)],[725]) ).

thf(1136,plain,
    ! [A: $i] :
      ( ( ( A @ singleton )
       != sk2 )
      | ( sk1 = A ) ),
    inference(simp,[status(thm)],[991]) ).

thf(139,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk2 @ ( sk3 @ in ) ) )
      | ~ $true
      | ( sk3 = sk1 ) ),
    inference(paramod_ordered,[status(thm)],[46,18]) ).

thf(140,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk2 @ ( sk3 @ in ) ) )
      | ( sk3 = sk1 ) ),
    inference(simp,[status(thm)],[139]) ).

thf(147,plain,
    ! [A: $i] :
      ( ( ( A @ singleton )
       != sk2 )
      | ( A != sk3 )
      | ( sk3 = sk1 ) ),
    inference(simp,[status(thm)],[140]) ).

thf(149,plain,
    ( ( ( sk3 @ singleton )
     != sk2 )
    | ( sk3 = sk1 ) ),
    inference(simp,[status(thm)],[147]) ).

thf(668,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk3 @ singleton ) )
      | ( B != sk2 )
      | ( sk3 = sk1 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,149]) ).

thf(669,plain,
    ! [A: $i] :
      ( ( A != sk2 )
      | ( sk3 = sk1 )
      | ~ ( sk3 @ singleton @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[668:[bind(A,$thf( sk3 @ singleton )),bind(B,$thf( B ))]]) ).

thf(1020,plain,
    ( ( sk3 = sk1 )
    | ~ ( sk3 @ singleton @ singleton @ ( sk2 @ in ) ) ),
    inference(simp,[status(thm)],[669]) ).

thf(2225,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
       != ( sk12 @ singleton @ singleton @ ( sk13 @ singleton @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[69,1420]) ).

thf(2226,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
     != ( sk12 @ singleton @ singleton @ ( sk13 @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[2225]) ).

thf(2275,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != ( sk12 @ singleton @ singleton ) )
      | ( B
       != ( sk13 @ singleton ) ) ),
    inference(simp,[status(thm)],[2226]) ).

thf(2281,plain,
    ! [A: $i] :
      ( ( sk13 @ singleton @ ( A @ unordered_pair ) )
     != ( sk12 @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[2275]) ).

thf(1176,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
       != ( sk2 @ singleton @ ( sk1 @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[65,1042]) ).

thf(1177,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
     != ( sk2 @ singleton @ ( sk1 @ in ) ) ),
    inference(simp,[status(thm)],[1176]) ).

thf(1204,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != ( sk2 @ singleton ) )
      | ( A != sk1 ) ),
    inference(simp,[status(thm)],[1177]) ).

thf(1212,plain,
    ! [A: $i] :
      ( ( A @ ( sk1 @ unordered_pair ) )
     != ( sk2 @ singleton ) ),
    inference(simp,[status(thm)],[1204]) ).

thf(2629,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( B
       != ( C @ ( sk1 @ unordered_pair ) ) )
      | ( A
       != ( sk2 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1212]) ).

thf(2630,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk2 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ ( sk1 @ unordered_pair ) @ in ) ) ),
    inference(pattern_uni,[status(thm)],[2629:[bind(A,$thf( A )),bind(B,$thf( E @ ( sk1 @ unordered_pair ) )),bind(C,$thf( E ))]]) ).

thf(2639,plain,
    ! [A: $i] :
      ~ ( sk2 @ singleton @ singleton @ ( A @ ( sk1 @ unordered_pair ) @ in ) ),
    inference(simp,[status(thm)],[2630]) ).

thf(1645,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
       != ( sk1 @ singleton @ singleton @ ( sk2 @ singleton @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[69,1319]) ).

thf(1646,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
     != ( sk1 @ singleton @ singleton @ ( sk2 @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[1645]) ).

thf(1688,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != ( sk1 @ singleton @ singleton ) )
      | ( B
       != ( sk2 @ singleton ) ) ),
    inference(simp,[status(thm)],[1646]) ).

thf(1696,plain,
    ! [A: $i] :
      ( ( sk2 @ singleton @ ( A @ unordered_pair ) )
     != ( sk1 @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[1688]) ).

thf(56,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( C
        = ( B @ ( A @ unordered_pair ) ) )
      | ~ ( C @ ( A @ ( B @ ( C @ sk8 ) ) @ in ) )
      | ( C @ ( B @ ( A @ sk6 ) ) ) ),
    inference(cnfConj,[status(thm)],[51]) ).

thf(60,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( C @ ( A @ ( B @ ( C @ sk8 ) ) @ in ) )
      | ( C @ ( B @ ( A @ sk6 ) ) )
      | ( C
        = ( B @ ( A @ unordered_pair ) ) ) ),
    inference(lifteq,[status(thm)],[56]) ).

thf(61,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( C @ ( A @ ( B @ ( C @ sk8 ) ) @ in ) )
      | ( C @ ( B @ ( A @ sk6 ) ) )
      | ( C
        = ( B @ ( A @ unordered_pair ) ) ) ),
    inference(simp,[status(thm)],[60]) ).

thf(236,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
       != ( sk2 @ ( sk3 @ in ) ) )
      | ( ( sk2 @ ( sk1 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) )
       != ( sk1 @ singleton ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[65,144]) ).

thf(237,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
       != ( sk2 @ ( sk3 @ in ) ) )
      | ( ( sk2 @ ( sk1 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) )
       != ( sk1 @ singleton ) ) ),
    inference(simp,[status(thm)],[236]) ).

thf(240,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != sk2 )
      | ( A != sk3 )
      | ( ( sk2 @ ( sk1 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) )
       != ( sk1 @ singleton ) ) ),
    inference(simp,[status(thm)],[237]) ).

thf(243,plain,
    ! [A: $i] :
      ( ( ( A @ ( sk3 @ unordered_pair ) )
       != sk2 )
      | ( ( sk2 @ ( sk1 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) )
       != ( sk1 @ singleton ) ) ),
    inference(simp,[status(thm)],[240]) ).

thf(811,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( B
       != ( C @ ( sk2 @ unordered_pair ) ) )
      | ( A != sk1 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,244]) ).

thf(812,plain,
    ! [B: $i,A: $i] :
      ( ( A != sk1 )
      | ~ ( A @ singleton @ ( B @ ( sk2 @ unordered_pair ) @ in ) ) ),
    inference(pattern_uni,[status(thm)],[811:[bind(A,$thf( A )),bind(B,$thf( E @ ( sk2 @ unordered_pair ) )),bind(C,$thf( E ))]]) ).

thf(1074,plain,
    ! [A: $i] :
      ~ ( sk1 @ singleton @ ( A @ ( sk2 @ unordered_pair ) @ in ) ),
    inference(simp,[status(thm)],[812]) ).

thf(8490,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != ( sk2 @ ( C @ unordered_pair ) ) )
      | ( ( A @ ( B @ unordered_pair ) @ singleton )
       != sk2 ) ),
    inference(paramod_ordered,[status(thm)],[24,7431]) ).

thf(8491,plain,
    ! [A: $i] :
      ( ( A @ ( sk2 @ unordered_pair ) @ singleton )
     != sk2 ),
    inference(pattern_uni,[status(thm)],[8490:[bind(A,$thf( A )),bind(B,$thf( sk2 )),bind(C,$thf( A ))]]) ).

thf(8646,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( A
       != ( C @ ( sk2 @ unordered_pair ) @ singleton ) )
      | ( B != sk2 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,8491]) ).

thf(8647,plain,
    ! [B: $i,A: $i] :
      ( ( A != sk2 )
      | ~ ( B @ ( sk2 @ unordered_pair ) @ singleton @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[8646:[bind(A,$thf( F @ ( sk2 @ unordered_pair ) @ singleton )),bind(B,$thf( B )),bind(C,$thf( F ))]]) ).

thf(8655,plain,
    ! [A: $i] :
      ~ ( A @ ( sk2 @ unordered_pair ) @ singleton @ singleton @ ( sk2 @ in ) ),
    inference(simp,[status(thm)],[8647]) ).

thf(86,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( C
        = ( B @ ( A @ set_intersection2 ) ) )
      | ~ ( C @ ( B @ ( A @ sk9 ) ) )
      | ( C @ ( A @ ( B @ ( C @ sk10 ) ) @ in ) ) ),
    inference(cnfConj,[status(thm)],[78]) ).

thf(91,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( C @ ( B @ ( A @ sk9 ) ) )
      | ( C @ ( A @ ( B @ ( C @ sk10 ) ) @ in ) )
      | ( C
        = ( B @ ( A @ set_intersection2 ) ) ) ),
    inference(lifteq,[status(thm)],[86]) ).

thf(92,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( C @ ( B @ ( A @ sk9 ) ) )
      | ( C @ ( A @ ( B @ ( C @ sk10 ) ) @ in ) )
      | ( C
        = ( B @ ( A @ set_intersection2 ) ) ) ),
    inference(simp,[status(thm)],[91]) ).

thf(16345,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( sk12 @ ( sk13 @ ( sk13 @ sk9 ) ) )
       != ( C @ ( B @ ( A @ sk9 ) ) ) )
      | ~ $true
      | ( C @ ( A @ ( B @ ( C @ sk10 ) ) @ in ) )
      | ( C
        = ( B @ ( A @ set_intersection2 ) ) )
      | ( sk13 @ ( sk13 @ ( sk13 @ ( sk12 @ sk11 ) ) @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[10719,92]) ).

thf(16346,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( sk12 @ ( sk13 @ ( sk13 @ sk9 ) ) )
       != ( C @ ( B @ ( A @ sk9 ) ) ) )
      | ( C @ ( A @ ( B @ ( C @ sk10 ) ) @ in ) )
      | ( C
        = ( B @ ( A @ set_intersection2 ) ) )
      | ( sk13 @ ( sk13 @ ( sk13 @ ( sk12 @ sk11 ) ) @ in ) ) ),
    inference(simp,[status(thm)],[16345]) ).

thf(16347,plain,
    ( ( sk12 @ ( sk13 @ ( sk13 @ ( sk12 @ sk10 ) ) @ in ) )
    | ( ( sk13 @ ( sk13 @ set_intersection2 ) )
      = sk12 )
    | ( sk13 @ ( sk13 @ ( sk13 @ ( sk12 @ sk11 ) ) @ in ) ) ),
    inference(pattern_uni,[status(thm)],[16346:[bind(A,$thf( sk13 )),bind(B,$thf( sk13 )),bind(C,$thf( sk12 ))]]) ).

thf(39638,plain,
    ( ( sk12 @ ( sk13 @ ( sk13 @ ( sk12 @ sk10 ) ) @ in ) )
    | ( sk13 = sk12 )
    | ( sk13 @ ( sk13 @ ( sk13 @ ( sk12 @ sk11 ) ) @ in ) ) ),
    inference(rewrite,[status(thm)],[16347,105]) ).

thf(39639,plain,
    ( ( sk12 @ ( sk13 @ ( sk13 @ ( sk12 @ sk10 ) ) @ in ) )
    | ( sk13 @ ( sk13 @ ( sk13 @ ( sk12 @ sk11 ) ) @ in ) ) ),
    inference(simplifyReflect,[status(thm)],[39638,113]) ).

thf(2360,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk2 @ singleton @ singleton @ singleton @ ( sk2 @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,1497]) ).

thf(2361,plain,
    ! [A: $i] :
      ( ( A @ singleton @ ( A @ in ) )
     != ( sk2 @ singleton @ singleton @ singleton @ ( sk2 @ in ) ) ),
    inference(simp,[status(thm)],[2360]) ).

thf(2405,plain,
    ! [A: $i] :
      ( ( ( A @ singleton )
       != ( sk2 @ singleton @ singleton @ singleton ) )
      | ( A != sk2 ) ),
    inference(simp,[status(thm)],[2361]) ).

thf(2415,plain,
    ( ( sk2 @ singleton @ singleton @ singleton )
   != ( sk2 @ singleton ) ),
    inference(simp,[status(thm)],[2405]) ).

thf(3177,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk2 @ singleton @ singleton @ singleton ) )
      | ( B
       != ( sk2 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,2415]) ).

thf(3178,plain,
    ! [A: $i] :
      ( ( A
       != ( sk2 @ singleton ) )
      | ~ ( sk2 @ singleton @ singleton @ singleton @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[3177:[bind(A,$thf( sk2 @ singleton @ singleton @ singleton )),bind(B,$thf( B ))]]) ).

thf(3186,plain,
    ~ ( sk2 @ singleton @ singleton @ singleton @ singleton @ ( sk2 @ singleton @ in ) ),
    inference(simp,[status(thm)],[3178]) ).

thf(7171,plain,
    ! [B: $i,A: $i] :
      ( ( B
       != ( sk13 @ singleton ) )
      | ( A != sk2 )
      | ( ( sk12 @ singleton )
       != sk2 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,6685]) ).

thf(7172,plain,
    ! [A: $i] :
      ( ( A != sk2 )
      | ( ( sk12 @ singleton )
       != sk2 )
      | ~ ( A @ singleton @ ( sk13 @ singleton @ in ) ) ),
    inference(pattern_uni,[status(thm)],[7171:[bind(A,$thf( A )),bind(B,$thf( sk13 @ singleton ))]]) ).

thf(7187,plain,
    ( ( ( sk12 @ singleton )
     != sk2 )
    | ~ ( sk2 @ singleton @ ( sk13 @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[7172]) ).

thf(27568,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk2 @ singleton @ ( sk13 @ singleton @ in ) ) )
      | ( ( sk12 @ singleton )
       != sk2 )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,7187]) ).

thf(27569,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk2 @ singleton @ ( sk13 @ singleton @ in ) ) )
      | ( ( sk12 @ singleton )
       != sk2 ) ),
    inference(simp,[status(thm)],[27568]) ).

thf(27761,plain,
    ! [A: $i] :
      ( ( ( A @ singleton )
       != ( sk2 @ singleton ) )
      | ( A
       != ( sk13 @ singleton ) )
      | ( ( sk12 @ singleton )
       != sk2 ) ),
    inference(simp,[status(thm)],[27569]) ).

thf(27813,plain,
    ( ( ( sk13 @ singleton @ singleton )
     != ( sk2 @ singleton ) )
    | ( ( sk12 @ singleton )
     != sk2 ) ),
    inference(simp,[status(thm)],[27761]) ).

thf(1555,plain,
    ! [B: $i,A: $i] :
      ( ( B
       != ( sk12 @ singleton ) )
      | ( A != sk2 )
      | ( sk13 != sk1 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1257]) ).

thf(1556,plain,
    ! [A: $i] :
      ( ( A != sk2 )
      | ( sk13 != sk1 )
      | ~ ( A @ singleton @ ( sk12 @ singleton @ in ) ) ),
    inference(pattern_uni,[status(thm)],[1555:[bind(A,$thf( A )),bind(B,$thf( sk12 @ singleton ))]]) ).

thf(1567,plain,
    ( ( sk13 != sk1 )
    | ~ ( sk2 @ singleton @ ( sk12 @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[1556]) ).

thf(6453,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk2 @ singleton @ ( sk12 @ singleton @ in ) ) )
      | ( sk13 != sk1 )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,1567]) ).

thf(6454,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk2 @ singleton @ ( sk12 @ singleton @ in ) ) )
      | ( sk13 != sk1 ) ),
    inference(simp,[status(thm)],[6453]) ).

thf(6548,plain,
    ! [A: $i] :
      ( ( ( A @ singleton )
       != ( sk2 @ singleton ) )
      | ( A
       != ( sk12 @ singleton ) )
      | ( sk13 != sk1 ) ),
    inference(simp,[status(thm)],[6454]) ).

thf(6560,plain,
    ( ( ( sk12 @ singleton @ singleton )
     != ( sk2 @ singleton ) )
    | ( sk13 != sk1 ) ),
    inference(simp,[status(thm)],[6548]) ).

thf(2633,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( A
       != ( C @ ( sk1 @ unordered_pair ) ) )
      | ( B
       != ( sk2 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1212]) ).

thf(2634,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk2 @ singleton ) )
      | ~ ( B @ ( sk1 @ unordered_pair ) @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[2633:[bind(A,$thf( E @ ( sk1 @ unordered_pair ) )),bind(B,$thf( B )),bind(C,$thf( E ))]]) ).

thf(2641,plain,
    ! [A: $i] :
      ~ ( A @ ( sk1 @ unordered_pair ) @ singleton @ ( sk2 @ singleton @ in ) ),
    inference(simp,[status(thm)],[2634]) ).

thf(83,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( C @ ( D @ in ) )
      | ~ ( B @ ( D @ in ) )
      | ~ ( A @ ( D @ in ) )
      | ( C
       != ( B @ ( A @ set_intersection2 ) ) ) ),
    inference(cnfConj,[status(thm)],[78]) ).

thf(101,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( C @ ( D @ in ) )
      | ~ ( B @ ( D @ in ) )
      | ~ ( A @ ( D @ in ) )
      | ( C
       != ( B @ ( A @ set_intersection2 ) ) ) ),
    inference(lifteq,[status(thm)],[83]) ).

thf(102,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( B @ ( A @ set_intersection2 ) @ ( C @ in ) )
      | ~ ( B @ ( C @ in ) )
      | ~ ( A @ ( C @ in ) ) ),
    inference(simp,[status(thm)],[101]) ).

thf(315,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
       != ( sk2 @ ( sk3 @ in ) ) )
      | ~ $true
      | ( sk3 = sk1 ) ),
    inference(paramod_ordered,[status(thm)],[69,18]) ).

thf(316,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
       != ( sk2 @ ( sk3 @ in ) ) )
      | ( sk3 = sk1 ) ),
    inference(simp,[status(thm)],[315]) ).

thf(327,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != sk2 )
      | ( B != sk3 )
      | ( sk3 = sk1 ) ),
    inference(simp,[status(thm)],[316]) ).

thf(334,plain,
    ! [A: $i] :
      ( ( ( sk3 @ ( A @ unordered_pair ) )
       != sk2 )
      | ( sk3 = sk1 ) ),
    inference(simp,[status(thm)],[327]) ).

thf(1708,plain,
    ! [B: $i,A: $i] :
      ( ( B
       != ( sk13 @ singleton ) )
      | ( A != sk2 )
      | ( sk12 != sk1 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1294]) ).

thf(1709,plain,
    ! [A: $i] :
      ( ( A != sk2 )
      | ( sk12 != sk1 )
      | ~ ( A @ singleton @ ( sk13 @ singleton @ in ) ) ),
    inference(pattern_uni,[status(thm)],[1708:[bind(A,$thf( A )),bind(B,$thf( sk13 @ singleton ))]]) ).

thf(1723,plain,
    ( ( sk12 != sk1 )
    | ~ ( sk2 @ singleton @ ( sk13 @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[1709]) ).

thf(1647,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk1 @ singleton @ singleton @ ( sk2 @ singleton @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,1319]) ).

thf(1648,plain,
    ! [A: $i] :
      ( ( A @ singleton @ ( A @ in ) )
     != ( sk1 @ singleton @ singleton @ ( sk2 @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[1647]) ).

thf(1687,plain,
    ! [A: $i] :
      ( ( ( A @ singleton )
       != ( sk1 @ singleton @ singleton ) )
      | ( A
       != ( sk2 @ singleton ) ) ),
    inference(simp,[status(thm)],[1648]) ).

thf(1695,plain,
    ( ( sk2 @ singleton @ singleton )
   != ( sk1 @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[1687]) ).

thf(3095,plain,
    ! [B: $i,A: $i] :
      ( ( B
       != ( sk2 @ singleton @ singleton ) )
      | ( A
       != ( sk1 @ singleton @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1695]) ).

thf(3096,plain,
    ! [A: $i] :
      ( ( A
       != ( sk1 @ singleton @ singleton ) )
      | ~ ( A @ singleton @ ( sk2 @ singleton @ singleton @ in ) ) ),
    inference(pattern_uni,[status(thm)],[3095:[bind(A,$thf( A )),bind(B,$thf( sk2 @ singleton @ singleton ))]]) ).

thf(3111,plain,
    ~ ( sk1 @ singleton @ singleton @ singleton @ ( sk2 @ singleton @ singleton @ in ) ),
    inference(simp,[status(thm)],[3096]) ).

thf(11388,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk1 @ singleton @ singleton @ singleton @ ( sk2 @ singleton @ singleton @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,3111]) ).

thf(11389,plain,
    ! [A: $i] :
      ( ( A @ singleton @ ( A @ in ) )
     != ( sk1 @ singleton @ singleton @ singleton @ ( sk2 @ singleton @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[11388]) ).

thf(11560,plain,
    ! [A: $i] :
      ( ( ( A @ singleton )
       != ( sk1 @ singleton @ singleton @ singleton ) )
      | ( A
       != ( sk2 @ singleton @ singleton ) ) ),
    inference(simp,[status(thm)],[11389]) ).

thf(11587,plain,
    ( ( sk2 @ singleton @ singleton @ singleton )
   != ( sk1 @ singleton @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[11560]) ).

thf(610,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( B
       != ( sk2 @ ( C @ unordered_pair ) ) )
      | ( A != sk1 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,253]) ).

thf(611,plain,
    ! [B: $i,A: $i] :
      ( ( A != sk1 )
      | ~ ( A @ singleton @ ( sk2 @ ( B @ unordered_pair ) @ in ) ) ),
    inference(pattern_uni,[status(thm)],[610:[bind(A,$thf( A )),bind(B,$thf( sk2 @ ( D @ unordered_pair ) )),bind(C,$thf( D ))]]) ).

thf(999,plain,
    ! [A: $i] :
      ~ ( sk1 @ singleton @ ( sk2 @ ( A @ unordered_pair ) @ in ) ),
    inference(simp,[status(thm)],[611]) ).

thf(7215,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk1 @ singleton @ ( sk2 @ ( B @ unordered_pair ) @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,999]) ).

thf(7216,plain,
    ! [B: $i,A: $i] :
      ( ( A @ singleton @ ( A @ in ) )
     != ( sk1 @ singleton @ ( sk2 @ ( B @ unordered_pair ) @ in ) ) ),
    inference(simp,[status(thm)],[7215]) ).

thf(7297,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ singleton )
       != ( sk1 @ singleton ) )
      | ( A
       != ( sk2 @ ( B @ unordered_pair ) ) ) ),
    inference(simp,[status(thm)],[7216]) ).

thf(7301,plain,
    ! [A: $i] :
      ( ( sk2 @ ( A @ unordered_pair ) @ singleton )
     != ( sk1 @ singleton ) ),
    inference(simp,[status(thm)],[7297]) ).

thf(1143,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
       != ( sk1 @ singleton @ ( sk2 @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[69,1041]) ).

thf(1144,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
     != ( sk1 @ singleton @ ( sk2 @ in ) ) ),
    inference(simp,[status(thm)],[1143]) ).

thf(1166,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != ( sk1 @ singleton ) )
      | ( B != sk2 ) ),
    inference(simp,[status(thm)],[1144]) ).

thf(1174,plain,
    ! [A: $i] :
      ( ( sk2 @ ( A @ unordered_pair ) )
     != ( sk1 @ singleton ) ),
    inference(simp,[status(thm)],[1166]) ).

thf(33,plain,
    ! [B: $i,A: $i] :
      ( ( B
        = ( A @ singleton ) )
      | ~ ( B @ ( A @ ( B @ sk5 ) @ in ) )
      | ( B @ ( A @ ( B @ sk4 ) @ in ) ) ),
    inference(cnfConj,[status(thm)],[30]) ).

thf(37,plain,
    ! [B: $i,A: $i] :
      ( ~ ( B @ ( A @ ( B @ sk5 ) @ in ) )
      | ( B @ ( A @ ( B @ sk4 ) @ in ) )
      | ( B
        = ( A @ singleton ) ) ),
    inference(lifteq,[status(thm)],[33]) ).

thf(38,plain,
    ! [B: $i,A: $i] :
      ( ~ ( B @ ( A @ ( B @ sk5 ) @ in ) )
      | ( B @ ( A @ ( B @ sk4 ) @ in ) )
      | ( B
        = ( A @ singleton ) ) ),
    inference(simp,[status(thm)],[37]) ).

thf(9953,plain,
    ! [B: $i,A: $i] :
      ( ( B
       != ( sk2 @ singleton @ singleton ) )
      | ( A != sk2 )
      | ( A @ ( A @ ( A @ ( B @ sk11 ) ) @ in ) )
      | ( B @ ( A @ ( A @ sk9 ) ) ) ),
    inference(paramod_ordered,[status(thm)],[2132,1467]) ).

thf(9954,plain,
    ! [A: $i] :
      ( ( A != sk2 )
      | ( A @ ( A @ ( A @ ( sk2 @ singleton @ singleton @ sk11 ) ) @ in ) )
      | ( sk2 @ singleton @ singleton @ ( A @ ( A @ sk9 ) ) ) ),
    inference(pattern_uni,[status(thm)],[9953:[bind(A,$thf( A )),bind(B,$thf( sk2 @ singleton @ singleton ))]]) ).

thf(10756,plain,
    ( ( sk2 @ ( sk2 @ ( sk2 @ ( sk2 @ singleton @ singleton @ sk11 ) ) @ in ) )
    | ( sk2 @ singleton @ singleton @ ( sk2 @ ( sk2 @ sk9 ) ) ) ),
    inference(simp,[status(thm)],[9954]) ).

thf(1180,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
       != ( sk2 @ singleton @ ( sk1 @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[69,1042]) ).

thf(1181,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
     != ( sk2 @ singleton @ ( sk1 @ in ) ) ),
    inference(simp,[status(thm)],[1180]) ).

thf(1205,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != ( sk2 @ singleton ) )
      | ( B != sk1 ) ),
    inference(simp,[status(thm)],[1181]) ).

thf(1213,plain,
    ! [A: $i] :
      ( ( sk1 @ ( A @ unordered_pair ) )
     != ( sk2 @ singleton ) ),
    inference(simp,[status(thm)],[1205]) ).

thf(2658,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( A
       != ( sk1 @ ( C @ unordered_pair ) ) )
      | ( B
       != ( sk2 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1213]) ).

thf(2659,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk2 @ singleton ) )
      | ~ ( sk1 @ ( B @ unordered_pair ) @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[2658:[bind(A,$thf( sk1 @ ( D @ unordered_pair ) )),bind(B,$thf( B )),bind(C,$thf( D ))]]) ).

thf(2663,plain,
    ! [A: $i] :
      ~ ( sk1 @ ( A @ unordered_pair ) @ singleton @ ( sk2 @ singleton @ in ) ),
    inference(simp,[status(thm)],[2659]) ).

thf(2148,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( B
       != ( sk2 @ ( C @ unordered_pair ) ) )
      | ( A
       != ( sk1 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1174]) ).

thf(2149,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk1 @ singleton ) )
      | ~ ( A @ singleton @ ( sk2 @ ( B @ unordered_pair ) @ in ) ) ),
    inference(pattern_uni,[status(thm)],[2148:[bind(A,$thf( A )),bind(B,$thf( sk2 @ ( D @ unordered_pair ) )),bind(C,$thf( D ))]]) ).

thf(2157,plain,
    ! [A: $i] :
      ~ ( sk1 @ singleton @ singleton @ ( sk2 @ ( A @ unordered_pair ) @ in ) ),
    inference(simp,[status(thm)],[2149]) ).

thf(8326,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( B
       != ( C @ ( sk12 @ unordered_pair ) ) )
      | ( A
       != ( sk13 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1303]) ).

thf(8327,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk13 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ ( sk12 @ unordered_pair ) @ in ) ) ),
    inference(pattern_uni,[status(thm)],[8326:[bind(A,$thf( A )),bind(B,$thf( E @ ( sk12 @ unordered_pair ) )),bind(C,$thf( E ))]]) ).

thf(8339,plain,
    ! [A: $i] :
      ~ ( sk13 @ singleton @ singleton @ ( A @ ( sk12 @ unordered_pair ) @ in ) ),
    inference(simp,[status(thm)],[8327]) ).

thf(1714,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk13 @ singleton ) )
      | ( B != sk2 )
      | ( sk12 != sk1 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1294]) ).

thf(1715,plain,
    ! [A: $i] :
      ( ( A != sk2 )
      | ( sk12 != sk1 )
      | ~ ( sk13 @ singleton @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[1714:[bind(A,$thf( sk13 @ singleton )),bind(B,$thf( B ))]]) ).

thf(1719,plain,
    ( ( sk12 != sk1 )
    | ~ ( sk13 @ singleton @ singleton @ ( sk2 @ in ) ) ),
    inference(simp,[status(thm)],[1715]) ).

thf(2227,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk12 @ singleton @ singleton @ ( sk13 @ singleton @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,1420]) ).

thf(2228,plain,
    ! [A: $i] :
      ( ( A @ singleton @ ( A @ in ) )
     != ( sk12 @ singleton @ singleton @ ( sk13 @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[2227]) ).

thf(2272,plain,
    ! [A: $i] :
      ( ( ( A @ singleton )
       != ( sk12 @ singleton @ singleton ) )
      | ( A
       != ( sk13 @ singleton ) ) ),
    inference(simp,[status(thm)],[2228]) ).

thf(2278,plain,
    ( ( sk13 @ singleton @ singleton )
   != ( sk12 @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[2272]) ).

thf(3135,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk13 @ singleton @ singleton ) )
      | ( B
       != ( sk12 @ singleton @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,2278]) ).

thf(3136,plain,
    ! [A: $i] :
      ( ( A
       != ( sk12 @ singleton @ singleton ) )
      | ~ ( sk13 @ singleton @ singleton @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[3135:[bind(A,$thf( sk13 @ singleton @ singleton )),bind(B,$thf( B ))]]) ).

thf(3141,plain,
    ~ ( sk13 @ singleton @ singleton @ singleton @ ( sk12 @ singleton @ singleton @ in ) ),
    inference(simp,[status(thm)],[3136]) ).

thf(2358,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
       != ( sk2 @ singleton @ singleton @ singleton @ ( sk2 @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[69,1497]) ).

thf(2359,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
     != ( sk2 @ singleton @ singleton @ singleton @ ( sk2 @ in ) ) ),
    inference(simp,[status(thm)],[2358]) ).

thf(2409,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != ( sk2 @ singleton @ singleton @ singleton ) )
      | ( B != sk2 ) ),
    inference(simp,[status(thm)],[2359]) ).

thf(2419,plain,
    ! [A: $i] :
      ( ( sk2 @ ( A @ unordered_pair ) )
     != ( sk2 @ singleton @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[2409]) ).

thf(80,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( C
        = ( B @ ( A @ set_intersection2 ) ) )
      | ~ ( C @ ( A @ ( B @ ( C @ sk11 ) ) @ in ) )
      | ( C @ ( B @ ( A @ sk9 ) ) ) ),
    inference(cnfConj,[status(thm)],[78]) ).

thf(95,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( C @ ( A @ ( B @ ( C @ sk11 ) ) @ in ) )
      | ( C @ ( B @ ( A @ sk9 ) ) )
      | ( C
        = ( B @ ( A @ set_intersection2 ) ) ) ),
    inference(lifteq,[status(thm)],[80]) ).

thf(96,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( C @ ( A @ ( B @ ( C @ sk11 ) ) @ in ) )
      | ( C @ ( B @ ( A @ sk9 ) ) )
      | ( C
        = ( B @ ( A @ set_intersection2 ) ) ) ),
    inference(simp,[status(thm)],[95]) ).

thf(9105,plain,
    ! [B: $i,A: $i] :
      ( ( A != sk2 )
      | ( B != sk1 )
      | ( A @ ( A @ ( A @ ( B @ sk11 ) ) @ in ) )
      | ( B @ ( A @ ( A @ sk9 ) ) ) ),
    inference(paramod_ordered,[status(thm)],[2132,138]) ).

thf(9106,plain,
    ! [A: $i] :
      ( ( A != sk1 )
      | ( sk2 @ ( sk2 @ ( sk2 @ ( A @ sk11 ) ) @ in ) )
      | ( A @ ( sk2 @ ( sk2 @ sk9 ) ) ) ),
    inference(pattern_uni,[status(thm)],[9105:[bind(A,$thf( sk2 ))]]) ).

thf(10834,plain,
    ( ( sk2 @ ( sk2 @ ( sk2 @ ( sk1 @ sk11 ) ) @ in ) )
    | ( sk1 @ ( sk2 @ ( sk2 @ sk9 ) ) ) ),
    inference(simp,[status(thm)],[9106]) ).

thf(9483,plain,
    ! [B: $i,A: $i] :
      ( ( B
       != ( sk2 @ singleton ) )
      | ( A != sk1 )
      | ( A @ ( A @ ( A @ ( B @ sk11 ) ) @ in ) )
      | ( B @ ( A @ ( A @ sk9 ) ) ) ),
    inference(paramod_ordered,[status(thm)],[2132,137]) ).

thf(9484,plain,
    ! [A: $i] :
      ( ( A != sk1 )
      | ( A @ ( A @ ( A @ ( sk2 @ singleton @ sk11 ) ) @ in ) )
      | ( sk2 @ singleton @ ( A @ ( A @ sk9 ) ) ) ),
    inference(pattern_uni,[status(thm)],[9483:[bind(A,$thf( A )),bind(B,$thf( sk2 @ singleton ))]]) ).

thf(10603,plain,
    ( ( sk1 @ ( sk1 @ ( sk1 @ ( sk2 @ singleton @ sk11 ) ) @ in ) )
    | ( sk2 @ singleton @ ( sk1 @ ( sk1 @ sk9 ) ) ) ),
    inference(simp,[status(thm)],[9484]) ).

thf(55,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( C
        = ( B @ ( A @ unordered_pair ) ) )
      | ( ( A @ ( B @ ( C @ sk8 ) ) )
        = B )
      | ( ( A @ ( B @ ( C @ sk8 ) ) )
        = A )
      | ( C @ ( B @ ( A @ sk6 ) ) ) ),
    inference(cnfConj,[status(thm)],[51]) ).

thf(72,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( C @ ( B @ ( A @ sk6 ) ) )
      | ( C
        = ( B @ ( A @ unordered_pair ) ) )
      | ( ( A @ ( B @ ( C @ sk8 ) ) )
        = B )
      | ( ( A @ ( B @ ( C @ sk8 ) ) )
        = A ) ),
    inference(lifteq,[status(thm)],[55]) ).

thf(73,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( C @ ( B @ ( A @ sk6 ) ) )
      | ( C
        = ( B @ ( A @ unordered_pair ) ) )
      | ( ( A @ ( B @ ( C @ sk8 ) ) )
        = B )
      | ( ( A @ ( B @ ( C @ sk8 ) ) )
        = A ) ),
    inference(simp,[status(thm)],[72]) ).

thf(664,plain,
    ! [B: $i,A: $i] :
      ( ( B
       != ( sk3 @ singleton ) )
      | ( A != sk2 )
      | ( sk3 = sk1 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,149]) ).

thf(665,plain,
    ! [A: $i] :
      ( ( A != sk2 )
      | ( sk3 = sk1 )
      | ~ ( A @ singleton @ ( sk3 @ singleton @ in ) ) ),
    inference(pattern_uni,[status(thm)],[664:[bind(A,$thf( A )),bind(B,$thf( sk3 @ singleton ))]]) ).

thf(1019,plain,
    ( ( sk3 = sk1 )
    | ~ ( sk2 @ singleton @ ( sk3 @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[665]) ).

thf(10917,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk2 @ singleton @ ( sk3 @ singleton @ in ) ) )
      | ( sk3 = sk1 )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,1019]) ).

thf(10918,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk2 @ singleton @ ( sk3 @ singleton @ in ) ) )
      | ( sk3 = sk1 ) ),
    inference(simp,[status(thm)],[10917]) ).

thf(11089,plain,
    ! [A: $i] :
      ( ( ( A @ singleton )
       != ( sk2 @ singleton ) )
      | ( A
       != ( sk3 @ singleton ) )
      | ( sk3 = sk1 ) ),
    inference(simp,[status(thm)],[10918]) ).

thf(11120,plain,
    ( ( ( sk3 @ singleton @ singleton )
     != ( sk2 @ singleton ) )
    | ( sk3 = sk1 ) ),
    inference(simp,[status(thm)],[11089]) ).

thf(8900,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk13 @ singleton @ singleton @ ( sk2 @ in ) ) )
      | ( sk12 != sk1 )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,1719]) ).

thf(8901,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk13 @ singleton @ singleton @ ( sk2 @ in ) ) )
      | ( sk12 != sk1 ) ),
    inference(simp,[status(thm)],[8900]) ).

thf(9000,plain,
    ! [A: $i] :
      ( ( ( A @ singleton )
       != ( sk13 @ singleton @ singleton ) )
      | ( A != sk2 )
      | ( sk12 != sk1 ) ),
    inference(simp,[status(thm)],[8901]) ).

thf(9021,plain,
    ( ( ( sk13 @ singleton @ singleton )
     != ( sk2 @ singleton ) )
    | ( sk12 != sk1 ) ),
    inference(simp,[status(thm)],[9000]) ).

thf(8204,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( A
       != ( C @ ( sk13 @ unordered_pair ) ) )
      | ( B
       != ( sk12 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1265]) ).

thf(8205,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk12 @ singleton ) )
      | ~ ( B @ ( sk13 @ unordered_pair ) @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[8204:[bind(A,$thf( E @ ( sk13 @ unordered_pair ) )),bind(B,$thf( B )),bind(C,$thf( E ))]]) ).

thf(8217,plain,
    ! [A: $i] :
      ~ ( A @ ( sk13 @ unordered_pair ) @ singleton @ ( sk12 @ singleton @ in ) ),
    inference(simp,[status(thm)],[8205]) ).

thf(36,plain,
    ! [B: $i,A: $i] :
      ( ( B
        = ( A @ singleton ) )
      | ( ( A @ ( B @ sk5 ) )
        = A )
      | ( B @ ( A @ ( B @ sk4 ) @ in ) ) ),
    inference(cnfConj,[status(thm)],[30]) ).

thf(43,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ ( B @ sk4 ) @ in ) )
      | ( B
        = ( A @ singleton ) )
      | ( ( A @ ( B @ sk5 ) )
        = A ) ),
    inference(lifteq,[status(thm)],[36]) ).

thf(44,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ ( B @ sk4 ) @ in ) )
      | ( B
        = ( A @ singleton ) )
      | ( ( A @ ( B @ sk5 ) )
        = A ) ),
    inference(simp,[status(thm)],[43]) ).

thf(54,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( C
        = ( B @ ( A @ unordered_pair ) ) )
      | ~ ( C @ ( B @ ( A @ sk6 ) ) )
      | ( C @ ( A @ ( B @ ( C @ sk7 ) ) @ in ) ) ),
    inference(cnfConj,[status(thm)],[51]) ).

thf(70,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( C @ ( B @ ( A @ sk6 ) ) )
      | ( C @ ( A @ ( B @ ( C @ sk7 ) ) @ in ) )
      | ( C
        = ( B @ ( A @ unordered_pair ) ) ) ),
    inference(lifteq,[status(thm)],[54]) ).

thf(71,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( C @ ( B @ ( A @ sk6 ) ) )
      | ( C @ ( A @ ( B @ ( C @ sk7 ) ) @ in ) )
      | ( C
        = ( B @ ( A @ unordered_pair ) ) ) ),
    inference(simp,[status(thm)],[70]) ).

thf(1139,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
       != ( sk1 @ singleton @ ( sk2 @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[65,1041]) ).

thf(1140,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
     != ( sk1 @ singleton @ ( sk2 @ in ) ) ),
    inference(simp,[status(thm)],[1139]) ).

thf(1167,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != ( sk1 @ singleton ) )
      | ( A != sk2 ) ),
    inference(simp,[status(thm)],[1140]) ).

thf(1175,plain,
    ! [A: $i] :
      ( ( A @ ( sk2 @ unordered_pair ) )
     != ( sk1 @ singleton ) ),
    inference(simp,[status(thm)],[1167]) ).

thf(2177,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( A
       != ( C @ ( sk2 @ unordered_pair ) ) )
      | ( B
       != ( sk1 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1175]) ).

thf(2178,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk1 @ singleton ) )
      | ~ ( B @ ( sk2 @ unordered_pair ) @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[2177:[bind(A,$thf( E @ ( sk2 @ unordered_pair ) )),bind(B,$thf( B )),bind(C,$thf( E ))]]) ).

thf(2182,plain,
    ! [A: $i] :
      ~ ( A @ ( sk2 @ unordered_pair ) @ singleton @ ( sk1 @ singleton @ in ) ),
    inference(simp,[status(thm)],[2178]) ).

thf(29191,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( B @ ( sk2 @ unordered_pair ) @ singleton @ ( sk1 @ singleton @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,2182]) ).

thf(29192,plain,
    ! [B: $i,A: $i] :
      ( ( A @ singleton @ ( A @ in ) )
     != ( B @ ( sk2 @ unordered_pair ) @ singleton @ ( sk1 @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[29191]) ).

thf(29384,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ singleton )
       != ( B @ ( sk2 @ unordered_pair ) @ singleton ) )
      | ( A
       != ( sk1 @ singleton ) ) ),
    inference(simp,[status(thm)],[29192]) ).

thf(29443,plain,
    ! [A: $i] :
      ( ( A @ ( sk2 @ unordered_pair ) @ singleton )
     != ( sk1 @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[29384]) ).

thf(8848,plain,
    ! [B: $i,A: $i] :
      ( ( B
       != ( sk13 @ singleton ) )
      | ( A != sk2 )
      | ~ ( sk12 @ singleton @ ( sk1 @ in ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1718]) ).

thf(8849,plain,
    ! [A: $i] :
      ( ( A != sk2 )
      | ~ ( sk12 @ singleton @ ( sk1 @ in ) )
      | ~ ( A @ singleton @ ( sk13 @ singleton @ in ) ) ),
    inference(pattern_uni,[status(thm)],[8848:[bind(A,$thf( A )),bind(B,$thf( sk13 @ singleton ))]]) ).

thf(8877,plain,
    ( ~ ( sk12 @ singleton @ ( sk1 @ in ) )
    | ~ ( sk2 @ singleton @ ( sk13 @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[8849]) ).

thf(7092,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( B
       != ( sk13 @ ( C @ unordered_pair ) ) )
      | ( A
       != ( sk12 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1264]) ).

thf(7093,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk12 @ singleton ) )
      | ~ ( A @ singleton @ ( sk13 @ ( B @ unordered_pair ) @ in ) ) ),
    inference(pattern_uni,[status(thm)],[7092:[bind(A,$thf( A )),bind(B,$thf( sk13 @ ( D @ unordered_pair ) )),bind(C,$thf( D ))]]) ).

thf(7109,plain,
    ! [A: $i] :
      ~ ( sk12 @ singleton @ singleton @ ( sk13 @ ( A @ unordered_pair ) @ in ) ),
    inference(simp,[status(thm)],[7093]) ).

thf(9487,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk2 @ singleton ) )
      | ( B != sk1 )
      | ( A @ ( A @ ( A @ ( B @ sk11 ) ) @ in ) )
      | ( B @ ( A @ ( A @ sk9 ) ) ) ),
    inference(paramod_ordered,[status(thm)],[2132,137]) ).

thf(9488,plain,
    ! [A: $i] :
      ( ( A != sk1 )
      | ( sk2 @ singleton @ ( sk2 @ singleton @ ( sk2 @ singleton @ ( A @ sk11 ) ) @ in ) )
      | ( A @ ( sk2 @ singleton @ ( sk2 @ singleton @ sk9 ) ) ) ),
    inference(pattern_uni,[status(thm)],[9487:[bind(A,$thf( sk2 @ singleton )),bind(B,$thf( B ))]]) ).

thf(10604,plain,
    ( ( sk2 @ singleton @ ( sk2 @ singleton @ ( sk2 @ singleton @ ( sk1 @ sk11 ) ) @ in ) )
    | ( sk1 @ ( sk2 @ singleton @ ( sk2 @ singleton @ sk9 ) ) ) ),
    inference(simp,[status(thm)],[9488]) ).

thf(26581,plain,
    ! [B: $i,A: $i] :
      ( ( ( sk2 @ singleton @ ( sk2 @ singleton @ ( sk2 @ singleton @ ( sk1 @ sk11 ) ) @ in ) )
       != ( A @ singleton @ ( B @ in ) ) )
      | ~ $true
      | ( B = A )
      | ( sk1 @ ( sk2 @ singleton @ ( sk2 @ singleton @ sk9 ) ) ) ),
    inference(paramod_ordered,[status(thm)],[10604,40]) ).

thf(26582,plain,
    ! [B: $i,A: $i] :
      ( ( ( sk2 @ singleton @ ( sk2 @ singleton @ ( sk2 @ singleton @ ( sk1 @ sk11 ) ) @ in ) )
       != ( A @ singleton @ ( B @ in ) ) )
      | ( B = A )
      | ( sk1 @ ( sk2 @ singleton @ ( sk2 @ singleton @ sk9 ) ) ) ),
    inference(simp,[status(thm)],[26581]) ).

thf(26583,plain,
    ( ( ( sk2 @ singleton @ ( sk2 @ singleton @ ( sk1 @ sk11 ) ) )
      = sk2 )
    | ( sk1 @ ( sk2 @ singleton @ ( sk2 @ singleton @ sk9 ) ) ) ),
    inference(pattern_uni,[status(thm)],[26582:[bind(A,$thf( sk2 )),bind(B,$thf( sk2 @ singleton @ ( sk2 @ singleton @ ( sk1 @ sk11 ) ) ))]]) ).

thf(175,plain,
    ! [A: $i] :
      ( ( ( A @ ( A @ set_intersection2 ) )
       != ( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) ) )
      | ( A
       != ( sk1 @ singleton ) ) ),
    inference(paramod_ordered,[status(thm)],[105,19]) ).

thf(181,plain,
    ( ( ( sk1 @ singleton )
     != sk2 )
    | ( ( sk3 @ ( sk1 @ unordered_pair ) )
     != ( sk1 @ singleton ) ) ),
    inference(simp,[status(thm)],[175]) ).

thf(31008,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk2 @ singleton @ singleton @ ( B @ ( sk1 @ unordered_pair ) @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,2639]) ).

thf(31009,plain,
    ! [B: $i,A: $i] :
      ( ( A @ singleton @ ( A @ in ) )
     != ( sk2 @ singleton @ singleton @ ( B @ ( sk1 @ unordered_pair ) @ in ) ) ),
    inference(simp,[status(thm)],[31008]) ).

thf(31188,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ singleton )
       != ( sk2 @ singleton @ singleton ) )
      | ( A
       != ( B @ ( sk1 @ unordered_pair ) ) ) ),
    inference(simp,[status(thm)],[31009]) ).

thf(31254,plain,
    ! [A: $i] :
      ( ( A @ ( sk1 @ unordered_pair ) @ singleton )
     != ( sk2 @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[31188]) ).

thf(2291,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
       != ( sk13 @ singleton @ singleton @ ( sk12 @ singleton @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[69,1421]) ).

thf(2292,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
     != ( sk13 @ singleton @ singleton @ ( sk12 @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[2291]) ).

thf(2338,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != ( sk13 @ singleton @ singleton ) )
      | ( B
       != ( sk12 @ singleton ) ) ),
    inference(simp,[status(thm)],[2292]) ).

thf(2346,plain,
    ! [A: $i] :
      ( ( sk12 @ singleton @ ( A @ unordered_pair ) )
     != ( sk13 @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[2338]) ).

thf(1931,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ set_intersection2 ) )
       != ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk2 @ set_intersection2 ) ) )
      | ( C
       != ( sk1 @ singleton ) )
      | ( B @ ( A @ ( B @ ( C @ sk11 ) ) @ in ) )
      | ( C @ ( B @ ( A @ sk9 ) ) ) ),
    inference(paramod_ordered,[status(thm)],[98,281]) ).

thf(1932,plain,
    ! [A: $i] :
      ( ( A
       != ( sk1 @ singleton ) )
      | ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ ( A @ sk11 ) ) @ in ) )
      | ( A @ ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk2 @ sk9 ) ) ) ),
    inference(pattern_uni,[status(thm)],[1931:[bind(A,$thf( sk2 )),bind(B,$thf( sk3 @ ( sk1 @ unordered_pair ) )),bind(C,$thf( C ))]]) ).

thf(2079,plain,
    ( ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk1 @ singleton @ sk11 ) ) @ in ) )
    | ( sk1 @ singleton @ ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk2 @ sk9 ) ) ) ),
    inference(simp,[status(thm)],[1932]) ).

thf(1706,plain,
    ! [B: $i,A: $i] :
      ( ( B != sk12 )
      | ( ( sk13 @ singleton )
       != sk2 )
      | ( A != sk1 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1294]) ).

thf(1707,plain,
    ! [A: $i] :
      ( ( ( sk13 @ singleton )
       != sk2 )
      | ( A != sk1 )
      | ~ ( A @ singleton @ ( sk12 @ in ) ) ),
    inference(pattern_uni,[status(thm)],[1706:[bind(A,$thf( A )),bind(B,$thf( sk12 ))]]) ).

thf(1722,plain,
    ( ( ( sk13 @ singleton )
     != sk2 )
    | ~ ( sk1 @ singleton @ ( sk12 @ in ) ) ),
    inference(simp,[status(thm)],[1707]) ).

thf(226,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
       != ( sk2 @ ( sk3 @ in ) ) )
      | ~ $true
      | ( sk3 = sk1 ) ),
    inference(paramod_ordered,[status(thm)],[65,18]) ).

thf(227,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
       != ( sk2 @ ( sk3 @ in ) ) )
      | ( sk3 = sk1 ) ),
    inference(simp,[status(thm)],[226]) ).

thf(242,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != sk2 )
      | ( A != sk3 )
      | ( sk3 = sk1 ) ),
    inference(simp,[status(thm)],[227]) ).

thf(245,plain,
    ! [A: $i] :
      ( ( ( A @ ( sk3 @ unordered_pair ) )
       != sk2 )
      | ( sk3 = sk1 ) ),
    inference(simp,[status(thm)],[242]) ).

thf(949,plain,
    ! [B: $i,A: $i] :
      ( ( B
       != ( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) ) )
      | ( A
       != ( sk1 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,19]) ).

thf(950,plain,
    ! [A: $i] :
      ( ( A
       != ( sk1 @ singleton ) )
      | ~ ( A @ singleton @ ( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) @ in ) ) ),
    inference(pattern_uni,[status(thm)],[949:[bind(A,$thf( A )),bind(B,$thf( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) ))]]) ).

thf(1122,plain,
    ~ ( sk1 @ singleton @ singleton @ ( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) @ in ) ),
    inference(simp,[status(thm)],[950]) ).

thf(831,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk2 @ set_intersection2 ) ) )
      | ( B
       != ( sk1 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,281]) ).

thf(832,plain,
    ! [A: $i] :
      ( ( A
       != ( sk1 @ singleton ) )
      | ~ ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk2 @ set_intersection2 ) @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[831:[bind(A,$thf( sk3 @ ( sk1 @ unordered_pair ) @ ( sk2 @ set_intersection2 ) )),bind(B,$thf( B ))]]) ).

thf(1080,plain,
    ~ ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk2 @ set_intersection2 ) @ singleton @ ( sk1 @ singleton @ in ) ),
    inference(simp,[status(thm)],[832]) ).

thf(2025,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ set_intersection2 ) )
       != ( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) ) )
      | ( C
       != ( sk1 @ singleton ) )
      | ( B @ ( A @ ( B @ ( C @ sk11 ) ) @ in ) )
      | ( C @ ( B @ ( A @ sk9 ) ) ) ),
    inference(paramod_ordered,[status(thm)],[98,19]) ).

thf(2026,plain,
    ! [A: $i] :
      ( ( A
       != ( sk1 @ singleton ) )
      | ( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk2 @ ( A @ sk11 ) ) @ in ) )
      | ( A @ ( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ sk9 ) ) ) ),
    inference(pattern_uni,[status(thm)],[2025:[bind(A,$thf( sk3 @ ( sk1 @ unordered_pair ) )),bind(B,$thf( sk2 )),bind(C,$thf( C ))]]) ).

thf(2129,plain,
    ( ( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk2 @ ( sk1 @ singleton @ sk11 ) ) @ in ) )
    | ( sk1 @ singleton @ ( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ sk9 ) ) ) ),
    inference(simp,[status(thm)],[2026]) ).

thf(7167,plain,
    ! [B: $i,A: $i] :
      ( ( B
       != ( sk12 @ singleton ) )
      | ( ( sk13 @ singleton )
       != sk2 )
      | ( A != sk2 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,6685]) ).

thf(7168,plain,
    ! [A: $i] :
      ( ( ( sk13 @ singleton )
       != sk2 )
      | ( A != sk2 )
      | ~ ( A @ singleton @ ( sk12 @ singleton @ in ) ) ),
    inference(pattern_uni,[status(thm)],[7167:[bind(A,$thf( A )),bind(B,$thf( sk12 @ singleton ))]]) ).

thf(7186,plain,
    ( ( ( sk13 @ singleton )
     != sk2 )
    | ~ ( sk2 @ singleton @ ( sk12 @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[7168]) ).

thf(8640,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( B
       != ( C @ ( sk2 @ unordered_pair ) @ singleton ) )
      | ( A != sk2 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,8491]) ).

thf(8641,plain,
    ! [B: $i,A: $i] :
      ( ( A != sk2 )
      | ~ ( A @ singleton @ ( B @ ( sk2 @ unordered_pair ) @ singleton @ in ) ) ),
    inference(pattern_uni,[status(thm)],[8640:[bind(A,$thf( A )),bind(B,$thf( F @ ( sk2 @ unordered_pair ) @ singleton )),bind(C,$thf( F ))]]) ).

thf(8652,plain,
    ! [A: $i] :
      ~ ( sk2 @ singleton @ ( A @ ( sk2 @ unordered_pair ) @ singleton @ in ) ),
    inference(simp,[status(thm)],[8641]) ).

thf(8267,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( A
       != ( sk12 @ ( C @ unordered_pair ) ) )
      | ( B
       != ( sk13 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1302]) ).

thf(8268,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk13 @ singleton ) )
      | ~ ( sk12 @ ( B @ unordered_pair ) @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[8267:[bind(A,$thf( sk12 @ ( D @ unordered_pair ) )),bind(B,$thf( B )),bind(C,$thf( D ))]]) ).

thf(8280,plain,
    ! [A: $i] :
      ~ ( sk12 @ ( A @ unordered_pair ) @ singleton @ ( sk13 @ singleton @ in ) ),
    inference(simp,[status(thm)],[8268]) ).

thf(2309,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
       != ( sk13 @ singleton @ singleton @ ( sk12 @ singleton @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[65,1421]) ).

thf(2310,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
     != ( sk13 @ singleton @ singleton @ ( sk12 @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[2309]) ).

thf(2342,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != ( sk13 @ singleton @ singleton ) )
      | ( A
       != ( sk12 @ singleton ) ) ),
    inference(simp,[status(thm)],[2310]) ).

thf(2350,plain,
    ! [A: $i] :
      ( ( A @ ( sk12 @ singleton @ unordered_pair ) )
     != ( sk13 @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[2342]) ).

thf(25972,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk2 @ singleton @ ( sk12 @ singleton @ in ) ) )
      | ( ( sk13 @ singleton )
       != sk2 )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,7186]) ).

thf(25973,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk2 @ singleton @ ( sk12 @ singleton @ in ) ) )
      | ( ( sk13 @ singleton )
       != sk2 ) ),
    inference(simp,[status(thm)],[25972]) ).

thf(26170,plain,
    ! [A: $i] :
      ( ( ( A @ singleton )
       != ( sk2 @ singleton ) )
      | ( A
       != ( sk12 @ singleton ) )
      | ( ( sk13 @ singleton )
       != sk2 ) ),
    inference(simp,[status(thm)],[25973]) ).

thf(26200,plain,
    ( ( ( sk12 @ singleton @ singleton )
     != ( sk2 @ singleton ) )
    | ( ( sk13 @ singleton )
     != sk2 ) ),
    inference(simp,[status(thm)],[26170]) ).

thf(1315,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk2 @ singleton ) )
      | ( B
       != ( sk1 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1173]) ).

thf(1316,plain,
    ! [A: $i] :
      ( ( A
       != ( sk1 @ singleton ) )
      | ~ ( sk2 @ singleton @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[1315:[bind(A,$thf( sk2 @ singleton )),bind(B,$thf( B ))]]) ).

thf(1320,plain,
    ~ ( sk2 @ singleton @ singleton @ ( sk1 @ singleton @ in ) ),
    inference(simp,[status(thm)],[1316]) ).

thf(1726,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
       != ( sk2 @ singleton @ singleton @ ( sk1 @ singleton @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[69,1320]) ).

thf(1727,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
     != ( sk2 @ singleton @ singleton @ ( sk1 @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[1726]) ).

thf(1768,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != ( sk2 @ singleton @ singleton ) )
      | ( B
       != ( sk1 @ singleton ) ) ),
    inference(simp,[status(thm)],[1727]) ).

thf(1775,plain,
    ! [A: $i] :
      ( ( sk1 @ singleton @ ( A @ unordered_pair ) )
     != ( sk2 @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[1768]) ).

thf(1663,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
       != ( sk1 @ singleton @ singleton @ ( sk2 @ singleton @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[65,1319]) ).

thf(1664,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
     != ( sk1 @ singleton @ singleton @ ( sk2 @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[1663]) ).

thf(1686,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != ( sk1 @ singleton @ singleton ) )
      | ( A
       != ( sk2 @ singleton ) ) ),
    inference(simp,[status(thm)],[1664]) ).

thf(1694,plain,
    ! [A: $i] :
      ( ( A @ ( sk2 @ singleton @ unordered_pair ) )
     != ( sk1 @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[1686]) ).

thf(2376,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
       != ( sk2 @ singleton @ singleton @ singleton @ ( sk2 @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[65,1497]) ).

thf(2377,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
     != ( sk2 @ singleton @ singleton @ singleton @ ( sk2 @ in ) ) ),
    inference(simp,[status(thm)],[2376]) ).

thf(2408,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != ( sk2 @ singleton @ singleton @ singleton ) )
      | ( A != sk2 ) ),
    inference(simp,[status(thm)],[2377]) ).

thf(2418,plain,
    ! [A: $i] :
      ( ( A @ ( sk2 @ unordered_pair ) )
     != ( sk2 @ singleton @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[2408]) ).

thf(13378,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk2 @ singleton @ singleton @ singleton @ singleton @ ( sk2 @ singleton @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,3186]) ).

thf(13379,plain,
    ! [A: $i] :
      ( ( A @ singleton @ ( A @ in ) )
     != ( sk2 @ singleton @ singleton @ singleton @ singleton @ ( sk2 @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[13378]) ).

thf(13557,plain,
    ! [A: $i] :
      ( ( ( A @ singleton )
       != ( sk2 @ singleton @ singleton @ singleton @ singleton ) )
      | ( A
       != ( sk2 @ singleton ) ) ),
    inference(simp,[status(thm)],[13379]) ).

thf(13593,plain,
    ( ( sk2 @ singleton @ singleton @ singleton @ singleton )
   != ( sk2 @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[13557]) ).

thf(815,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( A
       != ( C @ ( sk2 @ unordered_pair ) ) )
      | ( B != sk1 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,244]) ).

thf(816,plain,
    ! [B: $i,A: $i] :
      ( ( A != sk1 )
      | ~ ( B @ ( sk2 @ unordered_pair ) @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[815:[bind(A,$thf( E @ ( sk2 @ unordered_pair ) )),bind(B,$thf( B )),bind(C,$thf( E ))]]) ).

thf(1076,plain,
    ! [A: $i] :
      ~ ( A @ ( sk2 @ unordered_pair ) @ singleton @ ( sk1 @ in ) ),
    inference(simp,[status(thm)],[816]) ).

thf(28316,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk1 @ singleton @ singleton @ ( sk2 @ ( B @ unordered_pair ) @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,2157]) ).

thf(28317,plain,
    ! [B: $i,A: $i] :
      ( ( A @ singleton @ ( A @ in ) )
     != ( sk1 @ singleton @ singleton @ ( sk2 @ ( B @ unordered_pair ) @ in ) ) ),
    inference(simp,[status(thm)],[28316]) ).

thf(28494,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ singleton )
       != ( sk1 @ singleton @ singleton ) )
      | ( A
       != ( sk2 @ ( B @ unordered_pair ) ) ) ),
    inference(simp,[status(thm)],[28317]) ).

thf(28561,plain,
    ! [A: $i] :
      ( ( sk2 @ ( A @ unordered_pair ) @ singleton )
     != ( sk1 @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[28494]) ).

thf(3129,plain,
    ! [B: $i,A: $i] :
      ( ( B
       != ( sk13 @ singleton @ singleton ) )
      | ( A
       != ( sk12 @ singleton @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,2278]) ).

thf(3130,plain,
    ! [A: $i] :
      ( ( A
       != ( sk12 @ singleton @ singleton ) )
      | ~ ( A @ singleton @ ( sk13 @ singleton @ singleton @ in ) ) ),
    inference(pattern_uni,[status(thm)],[3129:[bind(A,$thf( A )),bind(B,$thf( sk13 @ singleton @ singleton ))]]) ).

thf(3146,plain,
    ~ ( sk12 @ singleton @ singleton @ singleton @ ( sk13 @ singleton @ singleton @ in ) ),
    inference(simp,[status(thm)],[3130]) ).

thf(7179,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk13 @ singleton ) )
      | ( B != sk2 )
      | ( ( sk12 @ singleton )
       != sk2 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,6685]) ).

thf(7180,plain,
    ! [A: $i] :
      ( ( A != sk2 )
      | ( ( sk12 @ singleton )
       != sk2 )
      | ~ ( sk13 @ singleton @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[7179:[bind(A,$thf( sk13 @ singleton )),bind(B,$thf( B ))]]) ).

thf(7190,plain,
    ( ( ( sk12 @ singleton )
     != sk2 )
    | ~ ( sk13 @ singleton @ singleton @ ( sk2 @ in ) ) ),
    inference(simp,[status(thm)],[7180]) ).

thf(16269,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( sk2 @ ( sk1 @ ( sk1 @ sk9 ) ) )
       != ( C @ ( B @ ( A @ sk9 ) ) ) )
      | ~ $true
      | ( C @ ( A @ ( B @ ( C @ sk10 ) ) @ in ) )
      | ( C
        = ( B @ ( A @ set_intersection2 ) ) )
      | ( sk1 @ ( sk1 @ ( sk1 @ ( sk2 @ sk11 ) ) @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[10832,92]) ).

thf(16270,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( sk2 @ ( sk1 @ ( sk1 @ sk9 ) ) )
       != ( C @ ( B @ ( A @ sk9 ) ) ) )
      | ( C @ ( A @ ( B @ ( C @ sk10 ) ) @ in ) )
      | ( C
        = ( B @ ( A @ set_intersection2 ) ) )
      | ( sk1 @ ( sk1 @ ( sk1 @ ( sk2 @ sk11 ) ) @ in ) ) ),
    inference(simp,[status(thm)],[16269]) ).

thf(16271,plain,
    ( ( sk2 @ ( sk1 @ ( sk1 @ ( sk2 @ sk10 ) ) @ in ) )
    | ( ( sk1 @ ( sk1 @ set_intersection2 ) )
      = sk2 )
    | ( sk1 @ ( sk1 @ ( sk1 @ ( sk2 @ sk11 ) ) @ in ) ) ),
    inference(pattern_uni,[status(thm)],[16270:[bind(A,$thf( sk1 )),bind(B,$thf( sk1 )),bind(C,$thf( sk2 ))]]) ).

thf(38528,plain,
    ( ( sk2 @ ( sk1 @ ( sk1 @ ( sk2 @ sk10 ) ) @ in ) )
    | ( sk2 = sk1 )
    | ( sk1 @ ( sk1 @ ( sk1 @ ( sk2 @ sk11 ) ) @ in ) ) ),
    inference(rewrite,[status(thm)],[16271,105]) ).

thf(38529,plain,
    ( ( sk2 @ ( sk1 @ ( sk1 @ ( sk2 @ sk10 ) ) @ in ) )
    | ( sk1 @ ( sk1 @ ( sk1 @ ( sk2 @ sk11 ) ) @ in ) ) ),
    inference(simplifyReflect,[status(thm)],[38528,138]) ).

thf(34,plain,
    ! [B: $i,A: $i] :
      ( ( B
        = ( A @ singleton ) )
      | ( ( A @ ( B @ sk5 ) )
        = A )
      | ( ( A @ ( B @ sk4 ) )
       != A ) ),
    inference(cnfConj,[status(thm)],[30]) ).

thf(47,plain,
    ! [B: $i,A: $i] :
      ( ( B
        = ( A @ singleton ) )
      | ( ( A @ ( B @ sk5 ) )
        = A )
      | ( ( A @ ( B @ sk4 ) )
       != A ) ),
    inference(lifteq,[status(thm)],[34]) ).

thf(48,plain,
    ! [B: $i,A: $i] :
      ( ( B
        = ( A @ singleton ) )
      | ( ( A @ ( B @ sk5 ) )
        = A )
      | ( ( A @ ( B @ sk4 ) )
       != A ) ),
    inference(simp,[status(thm)],[47]) ).

thf(52,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( D = B )
      | ( D = A )
      | ~ ( C @ ( D @ in ) )
      | ( C
       != ( B @ ( A @ unordered_pair ) ) ) ),
    inference(cnfConj,[status(thm)],[51]) ).

thf(62,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( C @ ( D @ in ) )
      | ( D = B )
      | ( D = A )
      | ( C
       != ( B @ ( A @ unordered_pair ) ) ) ),
    inference(lifteq,[status(thm)],[52]) ).

thf(63,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( B @ ( A @ unordered_pair ) @ ( C @ in ) )
      | ( C = B )
      | ( C = A ) ),
    inference(simp,[status(thm)],[62]) ).

thf(6666,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk12 @ singleton ) )
      | ( B != sk2 )
      | ~ ( sk13 @ singleton @ ( sk1 @ in ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1568]) ).

thf(6667,plain,
    ! [A: $i] :
      ( ( A != sk2 )
      | ~ ( sk13 @ singleton @ ( sk1 @ in ) )
      | ~ ( sk12 @ singleton @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[6666:[bind(A,$thf( sk12 @ singleton )),bind(B,$thf( B ))]]) ).

thf(6683,plain,
    ( ~ ( sk13 @ singleton @ ( sk1 @ in ) )
    | ~ ( sk12 @ singleton @ singleton @ ( sk2 @ in ) ) ),
    inference(simp,[status(thm)],[6667]) ).

thf(1553,plain,
    ! [B: $i,A: $i] :
      ( ( B != sk13 )
      | ( ( sk12 @ singleton )
       != sk2 )
      | ( A != sk1 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1257]) ).

thf(1554,plain,
    ! [A: $i] :
      ( ( ( sk12 @ singleton )
       != sk2 )
      | ( A != sk1 )
      | ~ ( A @ singleton @ ( sk13 @ in ) ) ),
    inference(pattern_uni,[status(thm)],[1553:[bind(A,$thf( A )),bind(B,$thf( sk13 ))]]) ).

thf(1566,plain,
    ( ( ( sk12 @ singleton )
     != sk2 )
    | ~ ( sk1 @ singleton @ ( sk13 @ in ) ) ),
    inference(simp,[status(thm)],[1554]) ).

thf(3197,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk1 @ singleton @ ( sk13 @ in ) ) )
      | ( ( sk12 @ singleton )
       != sk2 )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,1566]) ).

thf(3198,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk1 @ singleton @ ( sk13 @ in ) ) )
      | ( ( sk12 @ singleton )
       != sk2 ) ),
    inference(simp,[status(thm)],[3197]) ).

thf(3246,plain,
    ! [A: $i] :
      ( ( ( A @ singleton )
       != ( sk1 @ singleton ) )
      | ( A != sk13 )
      | ( ( sk12 @ singleton )
       != sk2 ) ),
    inference(simp,[status(thm)],[3198]) ).

thf(3260,plain,
    ( ( ( sk13 @ singleton )
     != ( sk1 @ singleton ) )
    | ( ( sk12 @ singleton )
     != sk2 ) ),
    inference(simp,[status(thm)],[3246]) ).

thf(9675,plain,
    ! [B: $i,A: $i] :
      ( ( B
       != ( sk3 @ singleton ) )
      | ( A != sk2 )
      | ( sk3 = sk1 )
      | ( A @ ( A @ ( A @ ( B @ sk11 ) ) @ in ) )
      | ( B @ ( A @ ( A @ sk9 ) ) ) ),
    inference(paramod_ordered,[status(thm)],[2132,149]) ).

thf(9676,plain,
    ! [A: $i] :
      ( ( A != sk2 )
      | ( sk3 = sk1 )
      | ( A @ ( A @ ( A @ ( sk3 @ singleton @ sk11 ) ) @ in ) )
      | ( sk3 @ singleton @ ( A @ ( A @ sk9 ) ) ) ),
    inference(pattern_uni,[status(thm)],[9675:[bind(A,$thf( A )),bind(B,$thf( sk3 @ singleton ))]]) ).

thf(10667,plain,
    ( ( sk3 = sk1 )
    | ( sk2 @ ( sk2 @ ( sk2 @ ( sk3 @ singleton @ sk11 ) ) @ in ) )
    | ( sk3 @ singleton @ ( sk2 @ ( sk2 @ sk9 ) ) ) ),
    inference(simp,[status(thm)],[9676]) ).

thf(1340,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
       != ( sk1 @ singleton @ ( sk2 @ singleton @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[65,1069]) ).

thf(1341,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
     != ( sk1 @ singleton @ ( sk2 @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[1340]) ).

thf(1360,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != ( sk1 @ singleton ) )
      | ( A
       != ( sk2 @ singleton ) ) ),
    inference(simp,[status(thm)],[1341]) ).

thf(1368,plain,
    ! [A: $i] :
      ( ( A @ ( sk2 @ singleton @ unordered_pair ) )
     != ( sk1 @ singleton ) ),
    inference(simp,[status(thm)],[1360]) ).

thf(3101,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk2 @ singleton @ singleton ) )
      | ( B
       != ( sk1 @ singleton @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1695]) ).

thf(3102,plain,
    ! [A: $i] :
      ( ( A
       != ( sk1 @ singleton @ singleton ) )
      | ~ ( sk2 @ singleton @ singleton @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[3101:[bind(A,$thf( sk2 @ singleton @ singleton )),bind(B,$thf( B ))]]) ).

thf(3112,plain,
    ~ ( sk2 @ singleton @ singleton @ singleton @ ( sk1 @ singleton @ singleton @ in ) ),
    inference(simp,[status(thm)],[3102]) ).

thf(53,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( C
        = ( B @ ( A @ unordered_pair ) ) )
      | ~ ( C @ ( B @ ( A @ sk6 ) ) )
      | ( ( A @ ( B @ ( C @ sk7 ) ) )
       != A ) ),
    inference(cnfConj,[status(thm)],[51]) ).

thf(66,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( C @ ( B @ ( A @ sk6 ) ) )
      | ( C
        = ( B @ ( A @ unordered_pair ) ) )
      | ( ( A @ ( B @ ( C @ sk7 ) ) )
       != A ) ),
    inference(lifteq,[status(thm)],[53]) ).

thf(67,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( C @ ( B @ ( A @ sk6 ) ) )
      | ( C
        = ( B @ ( A @ unordered_pair ) ) )
      | ( ( A @ ( B @ ( C @ sk7 ) ) )
       != A ) ),
    inference(simp,[status(thm)],[66]) ).

thf(173,plain,
    ! [A: $i] :
      ( ( ( A @ ( A @ set_intersection2 ) )
       != ( sk2 @ ( sk1 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) ) )
      | ( sk3 != sk1 )
      | ( A
       != ( sk1 @ singleton ) ) ),
    inference(paramod_ordered,[status(thm)],[105,169]) ).

thf(177,plain,
    ( ( ( sk1 @ singleton )
     != sk2 )
    | ( ( sk1 @ ( sk1 @ unordered_pair ) )
     != ( sk1 @ singleton ) )
    | ( sk3 != sk1 ) ),
    inference(simp,[status(thm)],[173]) ).

thf(1516,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
       != ( sk2 @ singleton @ singleton @ ( sk2 @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[65,1229]) ).

thf(1517,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
     != ( sk2 @ singleton @ singleton @ ( sk2 @ in ) ) ),
    inference(simp,[status(thm)],[1516]) ).

thf(1536,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != ( sk2 @ singleton @ singleton ) )
      | ( A != sk2 ) ),
    inference(simp,[status(thm)],[1517]) ).

thf(1538,plain,
    ! [A: $i] :
      ( ( A @ ( sk2 @ unordered_pair ) )
     != ( sk2 @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[1536]) ).

thf(9495,plain,
    ! [B: $i,A: $i] :
      ( ( B
       != ( sk2 @ singleton ) )
      | ( A != sk2 )
      | ( A @ ( A @ ( A @ ( B @ sk11 ) ) @ in ) )
      | ( B @ ( A @ ( A @ sk9 ) ) ) ),
    inference(paramod_ordered,[status(thm)],[2132,1210]) ).

thf(9496,plain,
    ! [A: $i] :
      ( ( A != sk2 )
      | ( A @ ( A @ ( A @ ( sk2 @ singleton @ sk11 ) ) @ in ) )
      | ( sk2 @ singleton @ ( A @ ( A @ sk9 ) ) ) ),
    inference(pattern_uni,[status(thm)],[9495:[bind(A,$thf( A )),bind(B,$thf( sk2 @ singleton ))]]) ).

thf(10608,plain,
    ( ( sk2 @ ( sk2 @ ( sk2 @ ( sk2 @ singleton @ sk11 ) ) @ in ) )
    | ( sk2 @ singleton @ ( sk2 @ ( sk2 @ sk9 ) ) ) ),
    inference(simp,[status(thm)],[9496]) ).

thf(317,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
       != ( C @ ( C @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[69,122]) ).

thf(318,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
     != ( C @ ( C @ in ) ) ),
    inference(simp,[status(thm)],[317]) ).

thf(329,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != C )
      | ( B != C ) ),
    inference(simp,[status(thm)],[318]) ).

thf(336,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) )
     != B ),
    inference(simp,[status(thm)],[329]) ).

thf(2243,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
       != ( sk12 @ singleton @ singleton @ ( sk13 @ singleton @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[65,1420]) ).

thf(2244,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
     != ( sk12 @ singleton @ singleton @ ( sk13 @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[2243]) ).

thf(2273,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != ( sk12 @ singleton @ singleton ) )
      | ( A
       != ( sk13 @ singleton ) ) ),
    inference(simp,[status(thm)],[2244]) ).

thf(2279,plain,
    ! [A: $i] :
      ( ( A @ ( sk13 @ singleton @ unordered_pair ) )
     != ( sk12 @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[2273]) ).

thf(3242,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk12 @ singleton ) )
      | ( B != sk2 )
      | ~ ( sk1 @ singleton @ ( sk13 @ in ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1566]) ).

thf(3243,plain,
    ! [A: $i] :
      ( ( A != sk2 )
      | ~ ( sk1 @ singleton @ ( sk13 @ in ) )
      | ~ ( sk12 @ singleton @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[3242:[bind(A,$thf( sk12 @ singleton )),bind(B,$thf( B ))]]) ).

thf(3256,plain,
    ( ~ ( sk1 @ singleton @ ( sk13 @ in ) )
    | ~ ( sk12 @ singleton @ singleton @ ( sk2 @ in ) ) ),
    inference(simp,[status(thm)],[3243]) ).

thf(11830,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk13 @ singleton @ singleton @ singleton @ ( sk12 @ singleton @ singleton @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,3141]) ).

thf(11831,plain,
    ! [A: $i] :
      ( ( A @ singleton @ ( A @ in ) )
     != ( sk13 @ singleton @ singleton @ singleton @ ( sk12 @ singleton @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[11830]) ).

thf(12002,plain,
    ! [A: $i] :
      ( ( ( A @ singleton )
       != ( sk13 @ singleton @ singleton @ singleton ) )
      | ( A
       != ( sk12 @ singleton @ singleton ) ) ),
    inference(simp,[status(thm)],[11831]) ).

thf(12039,plain,
    ( ( sk13 @ singleton @ singleton @ singleton )
   != ( sk12 @ singleton @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[12002]) ).

thf(6947,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk2 @ singleton @ singleton @ singleton ) )
      | ( B
       != ( sk1 @ singleton @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,6148]) ).

thf(6948,plain,
    ! [A: $i] :
      ( ( A
       != ( sk1 @ singleton @ singleton ) )
      | ~ ( sk2 @ singleton @ singleton @ singleton @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[6947:[bind(A,$thf( sk2 @ singleton @ singleton @ singleton )),bind(B,$thf( B ))]]) ).

thf(6965,plain,
    ~ ( sk2 @ singleton @ singleton @ singleton @ singleton @ ( sk1 @ singleton @ singleton @ in ) ),
    inference(simp,[status(thm)],[6948]) ).

thf(32915,plain,
    ! [B: $i,A: $i] :
      ( ( ( sk2 @ singleton @ ( sk2 @ singleton @ ( sk2 @ singleton @ ( sk2 @ sk11 ) ) @ in ) )
       != ( A @ singleton @ ( B @ in ) ) )
      | ~ $true
      | ( B = A )
      | ( sk2 @ ( sk2 @ singleton @ ( sk2 @ singleton @ sk9 ) ) ) ),
    inference(paramod_ordered,[status(thm)],[10609,40]) ).

thf(32916,plain,
    ! [B: $i,A: $i] :
      ( ( ( sk2 @ singleton @ ( sk2 @ singleton @ ( sk2 @ singleton @ ( sk2 @ sk11 ) ) @ in ) )
       != ( A @ singleton @ ( B @ in ) ) )
      | ( B = A )
      | ( sk2 @ ( sk2 @ singleton @ ( sk2 @ singleton @ sk9 ) ) ) ),
    inference(simp,[status(thm)],[32915]) ).

thf(32917,plain,
    ( ( ( sk2 @ singleton @ ( sk2 @ singleton @ ( sk2 @ sk11 ) ) )
      = sk2 )
    | ( sk2 @ ( sk2 @ singleton @ ( sk2 @ singleton @ sk9 ) ) ) ),
    inference(pattern_uni,[status(thm)],[32916:[bind(A,$thf( sk2 )),bind(B,$thf( sk2 @ singleton @ ( sk2 @ singleton @ ( sk2 @ sk11 ) ) ))]]) ).

thf(959,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) ) )
      | ( B
       != ( sk1 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,19]) ).

thf(960,plain,
    ! [A: $i] :
      ( ( A
       != ( sk1 @ singleton ) )
      | ~ ( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[959:[bind(A,$thf( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) )),bind(B,$thf( B ))]]) ).

thf(1126,plain,
    ~ ( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) @ singleton @ ( sk1 @ singleton @ in ) ),
    inference(simp,[status(thm)],[960]) ).

thf(2173,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( B
       != ( C @ ( sk2 @ unordered_pair ) ) )
      | ( A
       != ( sk1 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1175]) ).

thf(2174,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk1 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ ( sk2 @ unordered_pair ) @ in ) ) ),
    inference(pattern_uni,[status(thm)],[2173:[bind(A,$thf( A )),bind(B,$thf( E @ ( sk2 @ unordered_pair ) )),bind(C,$thf( E ))]]) ).

thf(2187,plain,
    ! [A: $i] :
      ~ ( sk1 @ singleton @ singleton @ ( A @ ( sk2 @ unordered_pair ) @ in ) ),
    inference(simp,[status(thm)],[2174]) ).

thf(152,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( B @ ( B @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,122]) ).

thf(153,plain,
    ! [B: $i,A: $i] :
      ( ( A @ singleton @ ( A @ in ) )
     != ( B @ ( B @ in ) ) ),
    inference(simp,[status(thm)],[152]) ).

thf(156,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ singleton )
       != B )
      | ( A != B ) ),
    inference(simp,[status(thm)],[153]) ).

thf(158,plain,
    ! [A: $i] :
      ( ( A @ singleton )
     != A ),
    inference(simp,[status(thm)],[156]) ).

thf(3232,plain,
    ! [B: $i,A: $i] :
      ( ( B
       != ( sk12 @ singleton ) )
      | ( A != sk2 )
      | ~ ( sk1 @ singleton @ ( sk13 @ in ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1566]) ).

thf(3233,plain,
    ! [A: $i] :
      ( ( A != sk2 )
      | ~ ( sk1 @ singleton @ ( sk13 @ in ) )
      | ~ ( A @ singleton @ ( sk12 @ singleton @ in ) ) ),
    inference(pattern_uni,[status(thm)],[3232:[bind(A,$thf( A )),bind(B,$thf( sk12 @ singleton ))]]) ).

thf(3252,plain,
    ( ~ ( sk1 @ singleton @ ( sk13 @ in ) )
    | ~ ( sk2 @ singleton @ ( sk12 @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[3233]) ).

thf(58,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( C
        = ( B @ ( A @ unordered_pair ) ) )
      | ~ ( C @ ( B @ ( A @ sk6 ) ) )
      | ( ( A @ ( B @ ( C @ sk7 ) ) )
       != B ) ),
    inference(cnfConj,[status(thm)],[51]) ).

thf(74,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( C @ ( B @ ( A @ sk6 ) ) )
      | ( C
        = ( B @ ( A @ unordered_pair ) ) )
      | ( ( A @ ( B @ ( C @ sk7 ) ) )
       != B ) ),
    inference(lifteq,[status(thm)],[58]) ).

thf(75,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( C @ ( B @ ( A @ sk6 ) ) )
      | ( C
        = ( B @ ( A @ unordered_pair ) ) )
      | ( ( A @ ( B @ ( C @ sk7 ) ) )
       != B ) ),
    inference(simp,[status(thm)],[74]) ).

thf(23301,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk1 @ singleton @ singleton @ ( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,1122]) ).

thf(23302,plain,
    ! [A: $i] :
      ( ( A @ singleton @ ( A @ in ) )
     != ( sk1 @ singleton @ singleton @ ( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) @ in ) ) ),
    inference(simp,[status(thm)],[23301]) ).

thf(23590,plain,
    ! [A: $i] :
      ( ( ( A @ singleton )
       != ( sk1 @ singleton @ singleton ) )
      | ( A
       != ( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) ) ) ),
    inference(simp,[status(thm)],[23302]) ).

thf(23605,plain,
    ( ( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) @ singleton )
   != ( sk1 @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[23590]) ).

thf(230,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
       != ( D @ ( C @ in ) ) )
      | ~ ( C @ ( D @ in ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[65,21]) ).

thf(231,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
       != ( D @ ( C @ in ) ) )
      | ~ ( C @ ( D @ in ) ) ),
    inference(simp,[status(thm)],[230]) ).

thf(232,plain,
    ! [B: $i,A: $i] :
      ~ ( A @ ( B @ ( A @ unordered_pair ) @ in ) ),
    inference(pattern_uni,[status(thm)],[231:[bind(A,$thf( E )),bind(B,$thf( F )),bind(C,$thf( E )),bind(D,$thf( F @ ( E @ unordered_pair ) ))]]) ).

thf(246,plain,
    ! [B: $i,A: $i] :
      ~ ( A @ ( B @ ( A @ unordered_pair ) @ in ) ),
    inference(simp,[status(thm)],[232]) ).

thf(1744,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
       != ( sk2 @ singleton @ singleton @ ( sk1 @ singleton @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[65,1320]) ).

thf(1745,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
     != ( sk2 @ singleton @ singleton @ ( sk1 @ singleton @ in ) ) ),
    inference(simp,[status(thm)],[1744]) ).

thf(1767,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != ( sk2 @ singleton @ singleton ) )
      | ( A
       != ( sk1 @ singleton ) ) ),
    inference(simp,[status(thm)],[1745]) ).

thf(1774,plain,
    ! [A: $i] :
      ( ( A @ ( sk1 @ singleton @ unordered_pair ) )
     != ( sk2 @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[1767]) ).

thf(1502,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
       != ( sk2 @ singleton @ singleton @ ( sk2 @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[69,1229]) ).

thf(1503,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) @ ( B @ in ) )
     != ( sk2 @ singleton @ singleton @ ( sk2 @ in ) ) ),
    inference(simp,[status(thm)],[1502]) ).

thf(1535,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != ( sk2 @ singleton @ singleton ) )
      | ( B != sk2 ) ),
    inference(simp,[status(thm)],[1503]) ).

thf(1546,plain,
    ! [A: $i] :
      ( ( sk2 @ ( A @ unordered_pair ) )
     != ( sk2 @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[1535]) ).

thf(8550,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( A
       != ( sk2 @ ( C @ unordered_pair ) @ singleton ) )
      | ( B != sk2 )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,7431]) ).

thf(8551,plain,
    ! [B: $i,A: $i] :
      ( ( A != sk2 )
      | ~ ( sk2 @ ( B @ unordered_pair ) @ singleton @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[8550:[bind(A,$thf( sk2 @ ( E @ unordered_pair ) @ singleton )),bind(B,$thf( B )),bind(C,$thf( E ))]]) ).

thf(8574,plain,
    ! [A: $i] :
      ~ ( sk2 @ ( A @ unordered_pair ) @ singleton @ singleton @ ( sk2 @ in ) ),
    inference(simp,[status(thm)],[8551]) ).

thf(272,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ set_intersection2 ) )
       != ( sk2 @ ( sk1 @ ( sk1 @ unordered_pair ) @ set_intersection2 ) ) )
      | ( ( A @ ( B @ set_intersection2 ) )
       != ( sk1 @ singleton ) )
      | ~ ( sk2 @ ( sk3 @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[27,144]) ).

thf(273,plain,
    ( ( ( sk1 @ ( sk1 @ unordered_pair ) @ ( sk2 @ set_intersection2 ) )
     != ( sk1 @ singleton ) )
    | ~ ( sk2 @ ( sk3 @ in ) ) ),
    inference(pattern_uni,[status(thm)],[272:[bind(A,$thf( sk1 @ ( sk1 @ unordered_pair ) )),bind(B,$thf( sk2 ))]]) ).

thf(22594,plain,
    ! [A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk1 @ singleton @ singleton @ ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk2 @ set_intersection2 ) @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,1078]) ).

thf(22595,plain,
    ! [A: $i] :
      ( ( A @ singleton @ ( A @ in ) )
     != ( sk1 @ singleton @ singleton @ ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk2 @ set_intersection2 ) @ in ) ) ),
    inference(simp,[status(thm)],[22594]) ).

thf(22865,plain,
    ! [A: $i] :
      ( ( ( A @ singleton )
       != ( sk1 @ singleton @ singleton ) )
      | ( A
       != ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk2 @ set_intersection2 ) ) ) ),
    inference(simp,[status(thm)],[22595]) ).

thf(22901,plain,
    ( ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk2 @ set_intersection2 ) @ singleton )
   != ( sk1 @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[22865]) ).

thf(6542,plain,
    ! [B: $i,A: $i] :
      ( ( A != sk13 )
      | ( B != sk1 )
      | ~ ( sk2 @ singleton @ ( sk12 @ singleton @ in ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1567]) ).

thf(6543,plain,
    ! [A: $i] :
      ( ( A != sk1 )
      | ~ ( sk2 @ singleton @ ( sk12 @ singleton @ in ) )
      | ~ ( sk13 @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[6542:[bind(A,$thf( sk13 ))]]) ).

thf(6558,plain,
    ( ~ ( sk2 @ singleton @ ( sk12 @ singleton @ in ) )
    | ~ ( sk13 @ singleton @ ( sk1 @ in ) ) ),
    inference(simp,[status(thm)],[6543]) ).

thf(8263,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( B
       != ( sk12 @ ( C @ unordered_pair ) ) )
      | ( A
       != ( sk13 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1302]) ).

thf(8264,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk13 @ singleton ) )
      | ~ ( A @ singleton @ ( sk12 @ ( B @ unordered_pair ) @ in ) ) ),
    inference(pattern_uni,[status(thm)],[8263:[bind(A,$thf( A )),bind(B,$thf( sk12 @ ( D @ unordered_pair ) )),bind(C,$thf( D ))]]) ).

thf(8277,plain,
    ! [A: $i] :
      ~ ( sk13 @ singleton @ singleton @ ( sk12 @ ( A @ unordered_pair ) @ in ) ),
    inference(simp,[status(thm)],[8264]) ).

thf(2654,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( B
       != ( sk1 @ ( C @ unordered_pair ) ) )
      | ( A
       != ( sk2 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1213]) ).

thf(2655,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk2 @ singleton ) )
      | ~ ( A @ singleton @ ( sk1 @ ( B @ unordered_pair ) @ in ) ) ),
    inference(pattern_uni,[status(thm)],[2654:[bind(A,$thf( A )),bind(B,$thf( sk1 @ ( D @ unordered_pair ) )),bind(C,$thf( D ))]]) ).

thf(2668,plain,
    ! [A: $i] :
      ~ ( sk2 @ singleton @ singleton @ ( sk1 @ ( A @ unordered_pair ) @ in ) ),
    inference(simp,[status(thm)],[2655]) ).

thf(81,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( B @ ( D @ in ) )
      | ~ ( C @ ( D @ in ) )
      | ( C
       != ( B @ ( A @ set_intersection2 ) ) ) ),
    inference(cnfConj,[status(thm)],[78]) ).

thf(93,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( B @ ( D @ in ) )
      | ~ ( C @ ( D @ in ) )
      | ( C
       != ( B @ ( A @ set_intersection2 ) ) ) ),
    inference(lifteq,[status(thm)],[81]) ).

thf(94,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( B @ ( C @ in ) )
      | ~ ( B @ ( A @ set_intersection2 ) @ ( C @ in ) ) ),
    inference(simp,[status(thm)],[93]) ).

thf(9839,plain,
    ! [B: $i,A: $i] :
      ( ( B != sk13 )
      | ( A != sk12 )
      | ( A @ ( A @ ( A @ ( B @ sk11 ) ) @ in ) )
      | ( B @ ( A @ ( A @ sk9 ) ) ) ),
    inference(paramod_ordered,[status(thm)],[2132,113]) ).

thf(9840,plain,
    ! [A: $i] :
      ( ( A != sk12 )
      | ( A @ ( A @ ( A @ ( sk13 @ sk11 ) ) @ in ) )
      | ( sk13 @ ( A @ ( A @ sk9 ) ) ) ),
    inference(pattern_uni,[status(thm)],[9839:[bind(A,$thf( A )),bind(B,$thf( sk13 ))]]) ).

thf(10718,plain,
    ( ( sk12 @ ( sk12 @ ( sk12 @ ( sk13 @ sk11 ) ) @ in ) )
    | ( sk13 @ ( sk12 @ ( sk12 @ sk9 ) ) ) ),
    inference(simp,[status(thm)],[9840]) ).

thf(2152,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( A
       != ( sk2 @ ( C @ unordered_pair ) ) )
      | ( B
       != ( sk1 @ singleton ) )
      | ~ ( A @ singleton @ ( B @ in ) ) ),
    inference(paramod_ordered,[status(thm)],[40,1174]) ).

thf(2153,plain,
    ! [B: $i,A: $i] :
      ( ( A
       != ( sk1 @ singleton ) )
      | ~ ( sk2 @ ( B @ unordered_pair ) @ singleton @ ( A @ in ) ) ),
    inference(pattern_uni,[status(thm)],[2152:[bind(A,$thf( sk2 @ ( D @ unordered_pair ) )),bind(B,$thf( B )),bind(C,$thf( D ))]]) ).

thf(2159,plain,
    ! [A: $i] :
      ~ ( sk2 @ ( A @ unordered_pair ) @ singleton @ ( sk1 @ singleton @ in ) ),
    inference(simp,[status(thm)],[2153]) ).

thf(85,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( C
        = ( B @ ( A @ set_intersection2 ) ) )
      | ~ ( C @ ( B @ ( A @ sk9 ) ) )
      | ~ ( B @ ( A @ ( B @ ( C @ sk10 ) ) @ in ) )
      | ~ ( A @ ( A @ ( B @ ( C @ sk10 ) ) @ in ) ) ),
    inference(cnfConj,[status(thm)],[78]) ).

thf(89,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( C @ ( B @ ( A @ sk9 ) ) )
      | ~ ( B @ ( A @ ( B @ ( C @ sk10 ) ) @ in ) )
      | ~ ( A @ ( A @ ( B @ ( C @ sk10 ) ) @ in ) )
      | ( C
        = ( B @ ( A @ set_intersection2 ) ) ) ),
    inference(lifteq,[status(thm)],[85]) ).

thf(90,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( C @ ( B @ ( A @ sk9 ) ) )
      | ~ ( B @ ( A @ ( B @ ( C @ sk10 ) ) @ in ) )
      | ~ ( A @ ( A @ ( B @ ( C @ sk10 ) ) @ in ) )
      | ( C
        = ( B @ ( A @ set_intersection2 ) ) ) ),
    inference(simp,[status(thm)],[89]) ).

thf(4582,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk1 @ singleton @ sk11 ) ) @ in ) )
       != ( B @ ( A @ unordered_pair ) @ ( C @ in ) ) )
      | ~ $true
      | ( C = B )
      | ( C = A )
      | ( sk1 @ singleton @ ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk2 @ sk9 ) ) ) ),
    inference(paramod_ordered,[status(thm)],[2079,63]) ).

thf(4583,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk1 @ singleton @ sk11 ) ) @ in ) )
       != ( B @ ( A @ unordered_pair ) @ ( C @ in ) ) )
      | ( C = B )
      | ( C = A )
      | ( sk1 @ singleton @ ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk2 @ sk9 ) ) ) ),
    inference(simp,[status(thm)],[4582]) ).

thf(4584,plain,
    ( ( ( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk1 @ singleton @ sk11 ) ) )
      = sk3 )
    | ( ( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk1 @ singleton @ sk11 ) ) )
      = sk1 )
    | ( sk1 @ singleton @ ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk2 @ sk9 ) ) ) ),
    inference(pattern_uni,[status(thm)],[4583:[bind(A,$thf( sk1 )),bind(B,$thf( sk3 )),bind(C,$thf( sk2 @ ( sk3 @ ( sk1 @ unordered_pair ) @ ( sk1 @ singleton @ sk11 ) ) ))]]) ).

thf(1439,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
       != ( sk2 @ singleton @ singleton @ ( sk1 @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[65,1070]) ).

thf(1440,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ unordered_pair ) @ ( A @ in ) )
     != ( sk2 @ singleton @ singleton @ ( sk1 @ in ) ) ),
    inference(simp,[status(thm)],[1439]) ).

thf(1460,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ unordered_pair ) )
       != ( sk2 @ singleton @ singleton ) )
      | ( A != sk1 ) ),
    inference(simp,[status(thm)],[1440]) ).

thf(1468,plain,
    ! [A: $i] :
      ( ( A @ ( sk1 @ unordered_pair ) )
     != ( sk2 @ singleton @ singleton ) ),
    inference(simp,[status(thm)],[1460]) ).

thf(79,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( C
        = ( B @ ( A @ set_intersection2 ) ) )
      | ( A @ ( A @ ( B @ ( C @ sk11 ) ) @ in ) )
      | ( C @ ( B @ ( A @ sk9 ) ) ) ),
    inference(cnfConj,[status(thm)],[78]) ).

thf(99,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( A @ ( A @ ( B @ ( C @ sk11 ) ) @ in ) )
      | ( C @ ( B @ ( A @ sk9 ) ) )
      | ( C
        = ( B @ ( A @ set_intersection2 ) ) ) ),
    inference(lifteq,[status(thm)],[79]) ).

thf(100,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( A @ ( A @ ( B @ ( C @ sk11 ) ) @ in ) )
      | ( C @ ( B @ ( A @ sk9 ) ) )
      | ( C
        = ( B @ ( A @ set_intersection2 ) ) ) ),
    inference(simp,[status(thm)],[99]) ).

thf(12943,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ singleton @ ( A @ in ) )
       != ( sk1 @ singleton @ ( B @ ( sk2 @ unordered_pair ) @ in ) ) )
      | ~ $true ),
    inference(paramod_ordered,[status(thm)],[46,1074]) ).

thf(12944,plain,
    ! [B: $i,A: $i] :
      ( ( A @ singleton @ ( A @ in ) )
     != ( sk1 @ singleton @ ( B @ ( sk2 @ unordered_pair ) @ in ) ) ),
    inference(simp,[status(thm)],[12943]) ).

thf(13053,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ singleton )
       != ( sk1 @ singleton ) )
      | ( A
       != ( B @ ( sk2 @ unordered_pair ) ) ) ),
    inference(simp,[status(thm)],[12944]) ).

thf(13107,plain,
    ! [A: $i] :
      ( ( A @ ( sk2 @ unordered_pair ) @ singleton )
     != ( sk1 @ singleton ) ),
    inference(simp,[status(thm)],[13053]) ).

thf(49060,plain,
    $false,
    inference(e,[status(thm)],[69,138,88,10609,1718,523,8883,1569,202,1041,1173,217,10832,1497,1078,8342,7188,25311,7431,1001,6268,42,24,1366,1265,25,2339,110,1264,10719,2274,8214,20,1319,8571,1568,25929,46,1609,7112,261,1465,1302,179,253,1136,106,6964,1020,2281,2639,1104,1696,6685,61,116,243,1074,248,8655,39639,3186,27813,6560,2641,102,334,1723,1042,11587,2132,8491,7301,1174,28,38,21,137,92,10756,65,2663,1210,2157,8339,1719,169,6148,1567,3141,6428,2419,7059,96,10834,1539,1266,10603,129,73,1695,11120,105,244,1103,9021,3111,149,8217,22,44,281,27,71,12,29443,144,8877,7109,49,26583,181,31254,2346,2079,113,2415,76,1722,245,1175,98,1122,2182,1080,2129,103,7186,2278,8652,108,8280,2350,1213,26200,1775,1694,2418,13593,1076,28561,1420,3146,7190,10604,38529,1467,48,63,6683,1566,3260,10667,1368,18,1070,3112,67,1637,177,1538,10608,336,1257,2279,3256,12039,1421,6965,32917,1126,2187,40,158,3252,75,23605,1294,1212,1614,7187,246,999,1774,168,1229,1546,1303,19,8574,273,22901,107,6558,8277,2668,94,10718,2159,1019,15,90,1320,122,1367,4584,1468,1069,100,13107]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.05  % Problem  : SET919+1 : TPTP v9.3.1. Released v3.2.0.
% 0.00/0.12  % Command  : java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox2/solver/bin/leo3.jar /export/starexec/sandbox2/benchmark/theBenchmark.p -t 300 -p  --atp eprover=/export/starexec/sandbox2/solver/bin/externals/eprover --instantiate 39
% 0.22/0.49  % Computer : n015.cluster.edu
% 0.22/0.49  % Model    : x86_64 x86_64
% 0.22/0.49  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.22/0.49  % Memory   : 8046.5625MB
% 0.22/0.49  % OS       : Linux 6.8.0-71-generic
% 0.22/0.49  % CPULimit : 300
% 0.22/0.49  % WCLimit  : 300
% 0.22/0.49  % DateTime : Sat Sep 26 08:28:58 UTC 2026
% 0.22/0.49  % CPUTime  : 
% 0.22/0.49  Running java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox2/solver/bin/leo3.jar /export/starexec/sandbox2/benchmark/theBenchmark.p -t 300 -p  --atp eprover=/export/starexec/sandbox2/solver/bin/externals/eprover --instantiate 39
% 1.28/1.29  % [INFO] 	 Parsing problem /export/starexec/sandbox2/benchmark/theBenchmark.p ... 
% 1.83/1.57  % [INFO] 	 Parsing done (268ms). 
% 1.83/1.59  % [INFO] 	 Running in sequential loop mode. 
% 2.56/2.04  % [INFO] 	 eprover registered as external prover. 
% 2.87/2.05  % [INFO] 	 Scanning for conjecture ... 
% 3.16/2.20  % [INFO] 	 Found a conjecture (or negated_conjecture) and 9 axioms. Running axiom selection ... 
% 3.16/2.26  % [INFO] 	 Axiom selection finished. Selected 9 axioms (removed 0 axioms). 
% 3.16/2.29  % [INFO] 	 Problem is first-order (TPTP FOF). 
% 3.35/2.30  % [INFO] 	 Type checking passed. 
% 3.35/2.31  % [CONFIG] 	 Using configuration: timeout(300) with strategy<name(default),share(1.0),primSubst(3),sos(false),unifierCount(4),uniDepth(8),boolExt(true),choice(true),renaming(true),funcspec(false), domConstr(0),specialInstances(39),restrictUniAttempts(true),termOrdering(CPO)>.  Searching for refutation ... 
% 87.49/19.18  % External prover 'e' found a proof!
% 87.49/19.18  % [INFO] 	 Killing All external provers ... 
% 87.49/19.18  % Time passed: 18480ms (effective reasoning time: 17587ms)
% 87.49/19.18  % Solved by strategy<name(default),share(1.0),primSubst(3),sos(false),unifierCount(4),uniDepth(8),boolExt(true),choice(true),renaming(true),funcspec(false), domConstr(0),specialInstances(39),restrictUniAttempts(true),termOrdering(CPO)>
% 87.49/19.19  % Axioms used in derivation (9): d1_tarski, idempotence_k3_xboole_0, commutativity_k3_xboole_0, d2_tarski, commutativity_k2_tarski, rc1_xboole_0, rc2_xboole_0, d3_xboole_0, antisymmetry_r2_hidden
% 87.49/19.19  % No. of inferences in proof: 713
% 87.49/19.19  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p : 18480 ms resp. 17587 ms w/o parsing
% 74.04/19.42  % SZS output start Refutation for /export/starexec/sandbox2/benchmark/theBenchmark.p
% See solution above
% 74.04/19.42  % [INFO] 	 Killing All external provers ... 
%------------------------------------------------------------------------------