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

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%------------------------------------------------------------------------------
% File     : Leo-III---1.8.0
% Problem  : ANA091^1 : TPTP v9.3.1. Released v7.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox/solver/bin/leo3.jar /export/starexec/sandbox/benchmark/theBenchmark.p -t 300 -p  --atp eprover=/export/starexec/sandbox/solver/bin/externals/eprover --instantiate 39

% Computer : n013.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8046.5625MB
% OS       : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Wed Sep 30 07:45:45 AM UTC 2026

% Result   : Theorem 16.35s 5.14s
% Output   : Refutation 16.58s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   31
%            Number of leaves      :   10
% Syntax   : Number of formulae    :   64 (  14 unt;   0 typ;   6 def)
%            Number of atoms       :  324 (  54 equ;   0 cnn)
%            Maximal formula atoms :   15 (   5 avg)
%            Number of connectives :  670 (  73   ~;  71   |;  29   &; 468   @)
%                                         (   0 <=>;  29  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   15 (   7 avg)
%            Number of types       :    2 (   1 usr)
%            Number of type conns  :   29 (  29   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   14 (  11 usr;   5 con; 0-3 aty)
%            Number of variables   :  134 (   4   ^; 113   !;  11   ?; 134   :)
%                                         (   0  !>;   0  ?*;   0  @-;   6  @+)

% Comments : 
%------------------------------------------------------------------------------
thf('type/realax/real_type',type,
    'type/realax/real': $tType ).

thf('const/sets/inf_decl',type,
    'const/sets/inf': ( 'type/realax/real' > $o ) > 'type/realax/real' ).

thf('const/sets/IN_decl',type,
    'const/sets/IN': 
      !>[TA: $tType] : ( TA > ( TA > $o ) > $o ) ).

thf('const/sets/EMPTY_decl',type,
    'const/sets/EMPTY': 
      !>[TA: $tType] : ( TA > $o ) ).

thf('const/realax/real_le_decl',type,
    'const/realax/real_le': 'type/realax/real' > 'type/realax/real' > $o ).

thf(sk1_decl,type,
    sk1: 'type/realax/real' > $o ).

thf(sk2_decl,type,
    sk2: 'type/realax/real' ).

thf(sk3_decl,type,
    sk3: 'type/realax/real' ).

thf(sk4_decl,type,
    sk4: 'type/realax/real' ).

thf(sk5_decl,type,
    sk5: ( 'type/realax/real' > $o ) > $o ).

thf(sk6_decl,type,
    sk6: 'type/realax/real' > ( 'type/realax/real' > $o ) > 'type/realax/real' ).

thf(sk7_decl,type,
    sk7: 'type/realax/real' > ( 'type/realax/real' > $o ) > 'type/realax/real' ).

thf(sk1_def,definition,
    ( sk1
    = ( @+[A: 'type/realax/real' > $o] :
          ~ ! [B: 'type/realax/real',C: 'type/realax/real'] :
              ( ? [D: 'type/realax/real'] :
                  ( ( 'const/sets/IN' @ 'type/realax/real' @ D @ A )
                  & ( 'const/realax/real_le' @ D @ C )
                  & ! [E: 'type/realax/real'] :
                      ( ( 'const/sets/IN' @ 'type/realax/real' @ E @ A )
                     => ( 'const/realax/real_le' @ B @ E ) ) )
             => ( 'const/realax/real_le' @ ( 'const/sets/inf' @ A ) @ C ) ) ) ) ).

thf(sk2_def,definition,
    ( sk2
    = ( @+[A: 'type/realax/real'] :
          ~ ! [B: 'type/realax/real'] :
              ( ? [C: 'type/realax/real'] :
                  ( ( 'const/sets/IN' @ 'type/realax/real' @ C @ sk1 )
                  & ( 'const/realax/real_le' @ C @ B )
                  & ! [D: 'type/realax/real'] :
                      ( ( 'const/sets/IN' @ 'type/realax/real' @ D @ sk1 )
                     => ( 'const/realax/real_le' @ A @ D ) ) )
             => ( 'const/realax/real_le' @ ( 'const/sets/inf' @ sk1 ) @ B ) ) ) ) ).

thf(sk3_def,definition,
    ( sk3
    = ( @+[A: 'type/realax/real'] :
          ~ ( ? [B: 'type/realax/real'] :
                ( ( 'const/sets/IN' @ 'type/realax/real' @ B @ sk1 )
                & ( 'const/realax/real_le' @ B @ A )
                & ! [C: 'type/realax/real'] :
                    ( ( 'const/sets/IN' @ 'type/realax/real' @ C @ sk1 )
                   => ( 'const/realax/real_le' @ sk2 @ C ) ) )
           => ( 'const/realax/real_le' @ ( 'const/sets/inf' @ sk1 ) @ A ) ) ) ) ).

thf(sk4_def,definition,
    ( sk4
    = ( @+[A: 'type/realax/real'] :
          ( ( 'const/sets/IN' @ 'type/realax/real' @ A @ sk1 )
          & ( 'const/realax/real_le' @ A @ sk3 )
          & ! [B: 'type/realax/real'] :
              ( ( 'const/sets/IN' @ 'type/realax/real' @ B @ sk1 )
             => ( 'const/realax/real_le' @ sk2 @ B ) ) ) ) ) ).

thf(sk6_def,definition,
    ( sk6
    = ( ^ [A: 'type/realax/real',B: 'type/realax/real' > $o] :
        @+[C: 'type/realax/real'] :
          ~ ( ( 'const/sets/IN' @ 'type/realax/real' @ C @ B )
           => ( 'const/realax/real_le' @ A @ C ) ) ) ) ).

thf(sk7_def,definition,
    ( sk7
    = ( ^ [A: 'type/realax/real',B: 'type/realax/real' > $o] :
        @+[C: 'type/realax/real'] :
          ~ ( ( 'const/sets/IN' @ 'type/realax/real' @ C @ B )
           => ( 'const/realax/real_le' @ A @ C ) ) ) ) ).

thf(1,conjecture,
    ! [A: 'type/realax/real' > $o,B: 'type/realax/real',C: 'type/realax/real',D: 'type/realax/real'] :
      ( ( ( 'const/sets/IN' @ 'type/realax/real' @ D @ A )
        & ( 'const/realax/real_le' @ D @ C )
        & ! [E: 'type/realax/real'] :
            ( ( 'const/sets/IN' @ 'type/realax/real' @ E @ A )
           => ( 'const/realax/real_le' @ B @ E ) ) )
     => ( 'const/realax/real_le' @ ( 'const/sets/inf' @ A ) @ C ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p','thm/sets/REAL_INF_LE_') ).

thf(2,negated_conjecture,
    ~ ! [A: 'type/realax/real' > $o,B: 'type/realax/real',C: 'type/realax/real',D: 'type/realax/real'] :
        ( ( ( 'const/sets/IN' @ 'type/realax/real' @ D @ A )
          & ( 'const/realax/real_le' @ D @ C )
          & ! [E: 'type/realax/real'] :
              ( ( 'const/sets/IN' @ 'type/realax/real' @ E @ A )
             => ( 'const/realax/real_le' @ B @ E ) ) )
       => ( 'const/realax/real_le' @ ( 'const/sets/inf' @ A ) @ C ) ),
    inference(neg_conjecture,[status(cth)],[1]) ).

thf(6,plain,
    ~ ! [A: 'type/realax/real' > $o,B: 'type/realax/real',C: 'type/realax/real',D: 'type/realax/real'] :
        ( ( ( 'const/sets/IN' @ 'type/realax/real' @ D @ A )
          & ( 'const/realax/real_le' @ D @ C )
          & ! [E: 'type/realax/real'] :
              ( ( 'const/sets/IN' @ 'type/realax/real' @ E @ A )
             => ( 'const/realax/real_le' @ B @ E ) ) )
       => ( 'const/realax/real_le' @ ( 'const/sets/inf' @ A ) @ C ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[2]) ).

thf(7,plain,
    ~ ! [A: 'type/realax/real' > $o,B: 'type/realax/real',C: 'type/realax/real'] :
        ( ? [D: 'type/realax/real'] :
            ( ( 'const/sets/IN' @ 'type/realax/real' @ D @ A )
            & ( 'const/realax/real_le' @ D @ C )
            & ! [E: 'type/realax/real'] :
                ( ( 'const/sets/IN' @ 'type/realax/real' @ E @ A )
               => ( 'const/realax/real_le' @ B @ E ) ) )
       => ( 'const/realax/real_le' @ ( 'const/sets/inf' @ A ) @ C ) ),
    inference(miniscope,[status(thm)],[6]) ).

thf(8,plain,
    ! [A: 'type/realax/real'] :
      ( ( 'const/sets/IN' @ 'type/realax/real' @ sk4 @ sk1 )
      & ( 'const/realax/real_le' @ sk4 @ sk3 )
      & ( ~ ( 'const/sets/IN' @ 'type/realax/real' @ A @ sk1 )
        | ( 'const/realax/real_le' @ sk2 @ A ) )
      & ~ ( 'const/realax/real_le' @ ( 'const/sets/inf' @ sk1 ) @ sk3 ) ),
    inference(cnf,[status(esa)],[7]) ).

thf(9,plain,
    'const/sets/IN' @ 'type/realax/real' @ sk4 @ sk1,
    inference(cnfConj,[status(thm)],[8]) ).

thf(5,axiom,
    ! [A: 'type/realax/real' > $o] :
      ( ( ( A
         != ( 'const/sets/EMPTY' @ 'type/realax/real' ) )
        & ? [B: 'type/realax/real'] :
          ! [C: 'type/realax/real'] :
            ( ( 'const/sets/IN' @ 'type/realax/real' @ C @ A )
           => ( 'const/realax/real_le' @ B @ C ) ) )
     => ( ! [B: 'type/realax/real'] :
            ( ( 'const/sets/IN' @ 'type/realax/real' @ B @ A )
           => ( 'const/realax/real_le' @ ( 'const/sets/inf' @ A ) @ B ) )
        & ! [B: 'type/realax/real'] :
            ( ! [C: 'type/realax/real'] :
                ( ( 'const/sets/IN' @ 'type/realax/real' @ C @ A )
               => ( 'const/realax/real_le' @ B @ C ) )
           => ( 'const/realax/real_le' @ B @ ( 'const/sets/inf' @ A ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p','thm/sets/INF_') ).

thf(18,plain,
    ! [A: 'type/realax/real' > $o] :
      ( ( ( A
         != ( 'const/sets/EMPTY' @ 'type/realax/real' ) )
        & ? [B: 'type/realax/real'] :
          ! [C: 'type/realax/real'] :
            ( ( 'const/sets/IN' @ 'type/realax/real' @ C @ A )
           => ( 'const/realax/real_le' @ B @ C ) ) )
     => ( ! [B: 'type/realax/real'] :
            ( ( 'const/sets/IN' @ 'type/realax/real' @ B @ A )
           => ( 'const/realax/real_le' @ ( 'const/sets/inf' @ A ) @ B ) )
        & ! [B: 'type/realax/real'] :
            ( ! [C: 'type/realax/real'] :
                ( ( 'const/sets/IN' @ 'type/realax/real' @ C @ A )
               => ( 'const/realax/real_le' @ B @ C ) )
           => ( 'const/realax/real_le' @ B @ ( 'const/sets/inf' @ A ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[5]) ).

thf(19,plain,
    ! [D: 'type/realax/real',C: 'type/realax/real',B: 'type/realax/real',A: 'type/realax/real' > $o] :
      ( ( ( A
          = ( 'const/sets/EMPTY' @ 'type/realax/real' ) )
        | ( 'const/sets/IN' @ 'type/realax/real' @ ( sk6 @ B @ A ) @ A )
        | ( sk5 @ A ) )
      & ( ( A
          = ( 'const/sets/EMPTY' @ 'type/realax/real' ) )
        | ~ ( 'const/realax/real_le' @ B @ ( sk6 @ B @ A ) )
        | ( sk5 @ A ) )
      & ( ~ ( sk5 @ A )
        | ~ ( 'const/sets/IN' @ 'type/realax/real' @ C @ A )
        | ( 'const/realax/real_le' @ ( 'const/sets/inf' @ A ) @ C ) )
      & ( ~ ( sk5 @ A )
        | ( 'const/sets/IN' @ 'type/realax/real' @ ( sk7 @ D @ A ) @ A )
        | ( 'const/realax/real_le' @ D @ ( 'const/sets/inf' @ A ) ) )
      & ( ~ ( sk5 @ A )
        | ~ ( 'const/realax/real_le' @ D @ ( sk7 @ D @ A ) )
        | ( 'const/realax/real_le' @ D @ ( 'const/sets/inf' @ A ) ) ) ),
    inference(cnf,[status(esa)],[18]) ).

thf(24,plain,
    ! [B: 'type/realax/real',A: 'type/realax/real' > $o] :
      ( ( A
        = ( 'const/sets/EMPTY' @ 'type/realax/real' ) )
      | ( 'const/sets/IN' @ 'type/realax/real' @ ( sk6 @ B @ A ) @ A )
      | ( sk5 @ A ) ),
    inference(cnfConj,[status(thm)],[19]) ).

thf(25,plain,
    ! [B: 'type/realax/real',A: 'type/realax/real' > $o] :
      ( ( A
        = ( 'const/sets/EMPTY' @ 'type/realax/real' ) )
      | ( 'const/sets/IN' @ 'type/realax/real' @ ( sk6 @ B @ A ) @ A )
      | ( sk5 @ A ) ),
    inference(lifteq,[status(thm)],[24]) ).

thf(20,plain,
    ! [B: 'type/realax/real',A: 'type/realax/real' > $o] :
      ( ~ ( sk5 @ A )
      | ~ ( 'const/sets/IN' @ 'type/realax/real' @ B @ A )
      | ( 'const/realax/real_le' @ ( 'const/sets/inf' @ A ) @ B ) ),
    inference(cnfConj,[status(thm)],[19]) ).

thf(26,plain,
    ! [B: 'type/realax/real',A: 'type/realax/real' > $o] :
      ( ~ ( sk5 @ A )
      | ~ ( 'const/sets/IN' @ 'type/realax/real' @ B @ A )
      | ( 'const/realax/real_le' @ ( 'const/sets/inf' @ A ) @ B ) ),
    inference(simp,[status(thm)],[20]) ).

thf(34,plain,
    ! [B: 'type/realax/real',A: 'type/realax/real' > $o] :
      ( ~ ( sk5 @ A )
      | ~ $true
      | ( 'const/realax/real_le' @ ( 'const/sets/inf' @ A ) @ B )
      | ( ( 'const/sets/IN' @ 'type/realax/real' @ sk4 @ sk1 )
       != ( 'const/sets/IN' @ 'type/realax/real' @ B @ A ) ) ),
    inference(paramod_ordered,[status(thm)],[9,26]) ).

thf(35,plain,
    ! [B: 'type/realax/real',A: 'type/realax/real' > $o] :
      ( ~ ( sk5 @ A )
      | ( 'const/realax/real_le' @ ( 'const/sets/inf' @ A ) @ B )
      | ( ( 'const/sets/IN' @ 'type/realax/real' @ sk4 @ sk1 )
       != ( 'const/sets/IN' @ 'type/realax/real' @ B @ A ) ) ),
    inference(simp,[status(thm)],[34]) ).

thf(36,plain,
    ( ~ ( sk5 @ sk1 )
    | ( 'const/realax/real_le' @ ( 'const/sets/inf' @ sk1 ) @ sk4 ) ),
    inference(pattern_uni,[status(thm)],[35:[bind(A,$thf( sk1 )),bind(B,$thf( sk4 ))]]) ).

thf(10,plain,
    'const/realax/real_le' @ sk4 @ sk3,
    inference(cnfConj,[status(thm)],[8]) ).

thf(3,axiom,
    ! [A: 'type/realax/real',B: 'type/realax/real',C: 'type/realax/real'] :
      ( ( ( 'const/realax/real_le' @ A @ B )
        & ( 'const/realax/real_le' @ B @ C ) )
     => ( 'const/realax/real_le' @ A @ C ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p','thm/realax/REAL_LE_TRANS_') ).

thf(13,plain,
    ! [A: 'type/realax/real',B: 'type/realax/real',C: 'type/realax/real'] :
      ( ( ( 'const/realax/real_le' @ A @ B )
        & ( 'const/realax/real_le' @ B @ C ) )
     => ( 'const/realax/real_le' @ A @ C ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[3]) ).

thf(14,plain,
    ! [C: 'type/realax/real',B: 'type/realax/real',A: 'type/realax/real'] :
      ( ~ ( 'const/realax/real_le' @ A @ B )
      | ~ ( 'const/realax/real_le' @ B @ C )
      | ( 'const/realax/real_le' @ A @ C ) ),
    inference(cnf,[status(esa)],[13]) ).

thf(12,plain,
    ~ ( 'const/realax/real_le' @ ( 'const/sets/inf' @ sk1 ) @ sk3 ),
    inference(cnfConj,[status(thm)],[8]) ).

thf(89,plain,
    ! [C: 'type/realax/real',B: 'type/realax/real',A: 'type/realax/real'] :
      ( ~ ( 'const/realax/real_le' @ A @ B )
      | ~ ( 'const/realax/real_le' @ B @ C )
      | ~ $true
      | ( ( 'const/realax/real_le' @ A @ C )
       != ( 'const/realax/real_le' @ ( 'const/sets/inf' @ sk1 ) @ sk3 ) ) ),
    inference(paramod_ordered,[status(thm)],[14,12]) ).

thf(90,plain,
    ! [C: 'type/realax/real',B: 'type/realax/real',A: 'type/realax/real'] :
      ( ~ ( 'const/realax/real_le' @ A @ B )
      | ~ ( 'const/realax/real_le' @ B @ C )
      | ( ( 'const/realax/real_le' @ A @ C )
       != ( 'const/realax/real_le' @ ( 'const/sets/inf' @ sk1 ) @ sk3 ) ) ),
    inference(simp,[status(thm)],[89]) ).

thf(91,plain,
    ! [A: 'type/realax/real'] :
      ( ~ ( 'const/realax/real_le' @ ( 'const/sets/inf' @ sk1 ) @ A )
      | ~ ( 'const/realax/real_le' @ A @ sk3 ) ),
    inference(pattern_uni,[status(thm)],[90:[bind(A,$thf( 'const/sets/inf' @ sk1 )),bind(B,$thf( B )),bind(C,$thf( sk3 ))]]) ).

thf(119,plain,
    ! [A: 'type/realax/real'] :
      ( ~ ( 'const/realax/real_le' @ ( 'const/sets/inf' @ sk1 ) @ A )
      | ~ ( 'const/realax/real_le' @ A @ sk3 ) ),
    inference(simp,[status(thm)],[91]) ).

thf(123,plain,
    ! [A: 'type/realax/real'] :
      ( ~ ( 'const/realax/real_le' @ ( 'const/sets/inf' @ sk1 ) @ A )
      | ~ $true
      | ( ( 'const/realax/real_le' @ sk4 @ sk3 )
       != ( 'const/realax/real_le' @ A @ sk3 ) ) ),
    inference(paramod_ordered,[status(thm)],[10,119]) ).

thf(124,plain,
    ! [A: 'type/realax/real'] :
      ( ~ ( 'const/realax/real_le' @ ( 'const/sets/inf' @ sk1 ) @ A )
      | ( ( 'const/realax/real_le' @ sk4 @ sk3 )
       != ( 'const/realax/real_le' @ A @ sk3 ) ) ),
    inference(simp,[status(thm)],[123]) ).

thf(125,plain,
    ~ ( 'const/realax/real_le' @ ( 'const/sets/inf' @ sk1 ) @ sk4 ),
    inference(pattern_uni,[status(thm)],[124:[bind(A,$thf( sk4 ))]]) ).

thf(227,plain,
    ( ~ ( sk5 @ sk1 )
    | $false ),
    inference(rewrite,[status(thm)],[36,125]) ).

thf(228,plain,
    ~ ( sk5 @ sk1 ),
    inference(simp,[status(thm)],[227]) ).

thf(296,plain,
    ! [B: 'type/realax/real',A: 'type/realax/real' > $o] :
      ( ( A
        = ( 'const/sets/EMPTY' @ 'type/realax/real' ) )
      | ( 'const/sets/IN' @ 'type/realax/real' @ ( sk6 @ B @ A ) @ A )
      | ~ $true
      | ( ( sk5 @ A )
       != ( sk5 @ sk1 ) ) ),
    inference(paramod_ordered,[status(thm)],[25,228]) ).

thf(297,plain,
    ! [B: 'type/realax/real',A: 'type/realax/real' > $o] :
      ( ( A
        = ( 'const/sets/EMPTY' @ 'type/realax/real' ) )
      | ( 'const/sets/IN' @ 'type/realax/real' @ ( sk6 @ B @ A ) @ A )
      | ( ( sk5 @ A )
       != ( sk5 @ sk1 ) ) ),
    inference(simp,[status(thm)],[296]) ).

thf(298,plain,
    ! [A: 'type/realax/real'] :
      ( ( sk1
        = ( 'const/sets/EMPTY' @ 'type/realax/real' ) )
      | ( 'const/sets/IN' @ 'type/realax/real' @ ( sk6 @ A @ sk1 ) @ sk1 ) ),
    inference(pattern_uni,[status(thm)],[297:[bind(A,$thf( sk1 )),bind(B,$thf( B ))]]) ).

thf(320,plain,
    ! [A: 'type/realax/real'] :
      ( ( sk1
        = ( 'const/sets/EMPTY' @ 'type/realax/real' ) )
      | ( 'const/sets/IN' @ 'type/realax/real' @ ( sk6 @ A @ sk1 ) @ sk1 ) ),
    inference(simp,[status(thm)],[298]) ).

thf(11,plain,
    ! [A: 'type/realax/real'] :
      ( ~ ( 'const/sets/IN' @ 'type/realax/real' @ A @ sk1 )
      | ( 'const/realax/real_le' @ sk2 @ A ) ),
    inference(cnfConj,[status(thm)],[8]) ).

thf(2107,plain,
    ! [B: 'type/realax/real',A: 'type/realax/real'] :
      ( ( sk1
        = ( 'const/sets/EMPTY' @ 'type/realax/real' ) )
      | ~ $true
      | ( 'const/realax/real_le' @ sk2 @ B )
      | ( ( 'const/sets/IN' @ 'type/realax/real' @ ( sk6 @ A @ sk1 ) @ sk1 )
       != ( 'const/sets/IN' @ 'type/realax/real' @ B @ sk1 ) ) ),
    inference(paramod_ordered,[status(thm)],[320,11]) ).

thf(2108,plain,
    ! [B: 'type/realax/real',A: 'type/realax/real'] :
      ( ( sk1
        = ( 'const/sets/EMPTY' @ 'type/realax/real' ) )
      | ( 'const/realax/real_le' @ sk2 @ B )
      | ( ( 'const/sets/IN' @ 'type/realax/real' @ ( sk6 @ A @ sk1 ) @ sk1 )
       != ( 'const/sets/IN' @ 'type/realax/real' @ B @ sk1 ) ) ),
    inference(simp,[status(thm)],[2107]) ).

thf(2109,plain,
    ! [A: 'type/realax/real'] :
      ( ( sk1
        = ( 'const/sets/EMPTY' @ 'type/realax/real' ) )
      | ( 'const/realax/real_le' @ sk2 @ ( sk6 @ A @ sk1 ) ) ),
    inference(pattern_uni,[status(thm)],[2108:[bind(A,$thf( C )),bind(B,$thf( sk6 @ C @ sk1 ))]]) ).

thf(2182,plain,
    ! [A: 'type/realax/real'] :
      ( ( sk1
        = ( 'const/sets/EMPTY' @ 'type/realax/real' ) )
      | ( 'const/realax/real_le' @ sk2 @ ( sk6 @ A @ sk1 ) ) ),
    inference(simp,[status(thm)],[2109]) ).

thf(23,plain,
    ! [B: 'type/realax/real',A: 'type/realax/real' > $o] :
      ( ( A
        = ( 'const/sets/EMPTY' @ 'type/realax/real' ) )
      | ~ ( 'const/realax/real_le' @ B @ ( sk6 @ B @ A ) )
      | ( sk5 @ A ) ),
    inference(cnfConj,[status(thm)],[19]) ).

thf(29,plain,
    ! [B: 'type/realax/real',A: 'type/realax/real' > $o] :
      ( ( A
        = ( 'const/sets/EMPTY' @ 'type/realax/real' ) )
      | ~ ( 'const/realax/real_le' @ B @ ( sk6 @ B @ A ) )
      | ( sk5 @ A ) ),
    inference(lifteq,[status(thm)],[23]) ).

thf(2612,plain,
    ! [C: 'type/realax/real',B: 'type/realax/real' > $o,A: 'type/realax/real'] :
      ( ( sk1
        = ( 'const/sets/EMPTY' @ 'type/realax/real' ) )
      | ( B
        = ( 'const/sets/EMPTY' @ 'type/realax/real' ) )
      | ~ $true
      | ( sk5 @ B )
      | ( ( 'const/realax/real_le' @ sk2 @ ( sk6 @ A @ sk1 ) )
       != ( 'const/realax/real_le' @ C @ ( sk6 @ C @ B ) ) ) ),
    inference(paramod_ordered,[status(thm)],[2182,29]) ).

thf(2613,plain,
    ! [C: 'type/realax/real',B: 'type/realax/real' > $o,A: 'type/realax/real'] :
      ( ( sk1
        = ( 'const/sets/EMPTY' @ 'type/realax/real' ) )
      | ( B
        = ( 'const/sets/EMPTY' @ 'type/realax/real' ) )
      | ( sk5 @ B )
      | ( ( 'const/realax/real_le' @ sk2 @ ( sk6 @ A @ sk1 ) )
       != ( 'const/realax/real_le' @ C @ ( sk6 @ C @ B ) ) ) ),
    inference(simp,[status(thm)],[2612]) ).

thf(2614,plain,
    ( ( sk1
      = ( 'const/sets/EMPTY' @ 'type/realax/real' ) )
    | ( sk1
      = ( 'const/sets/EMPTY' @ 'type/realax/real' ) )
    | ( sk5 @ sk1 ) ),
    inference(pattern_uni,[status(thm)],[2613:[bind(A,$thf( sk2 )),bind(B,$thf( sk1 )),bind(C,$thf( sk2 ))]]) ).

thf(2678,plain,
    ( ( sk1
      = ( 'const/sets/EMPTY' @ 'type/realax/real' ) )
    | ( sk5 @ sk1 ) ),
    inference(simp,[status(thm)],[2614]) ).

thf(2696,plain,
    ( ( sk1
      = ( 'const/sets/EMPTY' @ 'type/realax/real' ) )
    | $false ),
    inference(rewrite,[status(thm)],[2678,228]) ).

thf(2697,plain,
    ( sk1
    = ( 'const/sets/EMPTY' @ 'type/realax/real' ) ),
    inference(simp,[status(thm)],[2696]) ).

thf(2699,plain,
    'const/sets/IN' @ 'type/realax/real' @ sk4 @ ( 'const/sets/EMPTY' @ 'type/realax/real' ),
    inference(rewrite,[status(thm)],[9,2697]) ).

thf(4,axiom,
    ! [TA: $tType,A: TA > $o] :
      ( ( ? [B: TA] : ( 'const/sets/IN' @ TA @ B @ A ) )
      = ( A
       != ( 'const/sets/EMPTY' @ TA ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p','thm/sets/MEMBER_NOT_EMPTY_') ).

thf(15,plain,
    ! [TA: $tType,A: TA > $o] :
      ( ( ? [B: TA] : ( 'const/sets/IN' @ TA @ B @ A ) )
      = ( A
       != ( 'const/sets/EMPTY' @ TA ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[4]) ).

thf(16,plain,
    ! [TA: $tType,A: TA > $o] :
      ( ( ? [B: TA] : ( 'const/sets/IN' @ TA @ B @ A ) )
      = ( A
       != ( 'const/sets/EMPTY' @ TA ) ) ),
    inference(cnf,[status(esa)],[15]) ).

thf(17,plain,
    ! [TA: $tType,A: TA > $o] :
      ( ( ? [B: TA] : ( 'const/sets/IN' @ TA @ B @ A ) )
      = ( A
       != ( 'const/sets/EMPTY' @ TA ) ) ),
    inference(lifteq,[status(thm)],[16]) ).

thf(44,plain,
    ! [TA: $tType,A: TA > $o] :
      ( ~ ? [B: TA] : ( 'const/sets/IN' @ TA @ B @ A )
      | ( A
       != ( 'const/sets/EMPTY' @ TA ) ) ),
    inference(bool_ext,[status(thm)],[17]) ).

thf(46,plain,
    ! [TA: $tType,B: TA,A: TA > $o] :
      ( ~ ( 'const/sets/IN' @ TA @ B @ A )
      | ( A
       != ( 'const/sets/EMPTY' @ TA ) ) ),
    inference(cnf,[status(esa)],[44]) ).

thf(47,plain,
    ! [TA: $tType,B: TA,A: TA > $o] :
      ( ( A
       != ( 'const/sets/EMPTY' @ TA ) )
      | ~ ( 'const/sets/IN' @ TA @ B @ A ) ),
    inference(lifteq,[status(thm)],[46]) ).

thf(48,plain,
    ! [TA: $tType,A: TA] :
      ~ ( 'const/sets/IN' @ TA @ A @ ( 'const/sets/EMPTY' @ TA ) ),
    inference(simp,[status(thm)],[47]) ).

thf(2891,plain,
    $false,
    inference(rewrite,[status(thm)],[2699,48]) ).

thf(2892,plain,
    $false,
    inference(simp,[status(thm)],[2891]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02  % Problem  : ANA091^1 : TPTP v9.3.1. Released v7.0.0.
% 0.00/0.07  % Command  : java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox/solver/bin/leo3.jar /export/starexec/sandbox/benchmark/theBenchmark.p -t 300 -p  --atp eprover=/export/starexec/sandbox/solver/bin/externals/eprover --instantiate 39
% 0.10/0.21  % Computer : n013.cluster.edu
% 0.10/0.21  % Model    : x86_64 x86_64
% 0.10/0.21  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.21  % Memory   : 8046.5625MB
% 0.10/0.21  % OS       : Linux 6.8.0-71-generic
% 0.10/0.21  % CPULimit : 300
% 0.10/0.21  % WCLimit  : 300
% 0.10/0.21  % DateTime : Tue Sep 29 17:40:21 UTC 2026
% 0.10/0.21  % CPUTime  : 
% 0.10/0.21  Running java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox/solver/bin/leo3.jar /export/starexec/sandbox/benchmark/theBenchmark.p -t 300 -p  --atp eprover=/export/starexec/sandbox/solver/bin/externals/eprover --instantiate 39
% 0.85/0.78  % [INFO] 	 Parsing problem /export/starexec/sandbox/benchmark/theBenchmark.p ... 
% 1.16/0.98  % [INFO] 	 Parsing done (197ms). 
% 1.16/0.99  % [INFO] 	 Running in sequential loop mode. 
% 1.80/1.39  % [INFO] 	 eprover registered as external prover. 
% 2.00/1.40  % [INFO] 	 Scanning for conjecture ... 
% 2.15/1.50  % [INFO] 	 Found a conjecture (or negated_conjecture) and 3 axioms. Running axiom selection ... 
% 2.15/1.54  % [INFO] 	 Axiom selection finished. Selected 3 axioms (removed 0 axioms). 
% 2.15/1.56  % [INFO] 	 Problem is higher-order (TPTP THF). 
% 2.15/1.56  % [INFO] 	 Type checking passed. 
% 2.15/1.56  % [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 ... 
% 16.35/5.14  % [INFO] 	 Killing All external provers ... 
% 16.35/5.14  % Time passed: 4784ms (effective reasoning time: 4138ms)
% 16.35/5.14  % 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)>
% 16.35/5.14  % Axioms used in derivation (3): thm/sets/INF_, thm/realax/REAL_LE_TRANS_, thm/sets/MEMBER_NOT_EMPTY_
% 16.35/5.14  % No. of inferences in proof: 58
% 16.35/5.14  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : 4784 ms resp. 4138 ms w/o parsing
% 16.58/5.22  % SZS output start Refutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 16.58/5.22  % [INFO] 	 Killing All external provers ... 
%------------------------------------------------------------------------------