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DT2H2X---1.9.5.THM-Ref.s

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%------------------------------------------------------------------------------
% File     : DT2H2X---1.9.5
% Problem  : SEU516^1 : TPTP v9.2.1. Released v3.7.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : /export/starexec/sandbox2/solver/bin/run_DT2H2X /export/starexec/sandbox2/benchmark/theBenchmark.p 300

% Computer : n028.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Wed Feb 25 09:35:02 AM UTC 2026

% Result   : Theorem 1.96s 1.46s
% Output   : Refutation 1.96s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   13
%            Number of leaves      :    4
% Syntax   : Number of formulae    :   27 (   8 unt;   0 typ;   0 def)
%            Number of atoms       :  826 ( 246 equ;   0 cnn)
%            Maximal formula atoms :   35 (  30 avg)
%            Number of connectives :  601 (  55   ~;  56   |; 130   &; 222   @)
%                                         (   4 <=>; 134  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   41 (  14 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   99 (  96 usr;  40 con; 0-3 aty)
%            Number of variables   :   63 (   0   ^;  42   !;  21   ?;  63   :)

% Comments : 
%------------------------------------------------------------------------------
thf(func_def_0,type,
    in: $i > $i > $o ).

thf(func_def_1,type,
    exu: ( $i > $o ) > $o ).

thf(func_def_6,type,
    setadjoin: $i > $i > $i ).

thf(func_def_8,type,
    powerset: $i > $i ).

thf(func_def_10,type,
    setunion: $i > $i ).

thf(func_def_19,type,
    descr: ( $i > $o ) > $i ).

thf(func_def_21,type,
    dsetconstr: $i > ( $i > $o ) > $i ).

thf(func_def_26,type,
    prop2set: $o > $i ).

thf(func_def_36,type,
    nonempty: $i > $o ).

thf(func_def_57,type,
    sP1: $i > $i > $o ).

thf(func_def_58,type,
    sP2: $i > $o ).

thf(func_def_59,type,
    sP3: $i > $i > $o ).

thf(func_def_60,type,
    sP4: $i > $i > $o ).

thf(func_def_62,type,
    sK6: $i > $i > $o ).

thf(func_def_63,type,
    sK7: $i > $i ).

thf(func_def_64,type,
    sK8: $i > $i ).

thf(func_def_65,type,
    sK9: ( $i > $i > $o ) > $i > $i ).

thf(func_def_66,type,
    sK10: ( $i > $i > $o ) > $i > $i ).

thf(func_def_67,type,
    sK11: $i > ( $i > $i > $o ) > $i > $i ).

thf(func_def_68,type,
    sK12: $i > $i ).

thf(func_def_70,type,
    sK14: $i > $i ).

thf(func_def_74,type,
    sK18: $i > $i > $i ).

thf(func_def_75,type,
    sK19: $i > $i > $i ).

thf(func_def_76,type,
    sK20: ( $i > $o ) > $i ).

thf(func_def_77,type,
    sK21: $i > $o ).

thf(func_def_78,type,
    sK22: $i > $i ).

thf(func_def_84,type,
    sK28: $i > $o ).

thf(func_def_88,type,
    sK32: $i > $o ).

thf(func_def_93,type,
    sK37: $i > $i ).

thf(func_def_101,type,
    sK45: $i > $o ).

thf(func_def_102,type,
    sK46: ( $i > $o ) > $i ).

thf(func_def_103,type,
    sK47: $i > $i ).

thf(func_def_106,type,
    sK50: $i > $o ).

thf(func_def_109,type,
    sK53: $i > $i > $i ).

thf(func_def_110,type,
    sK54: $i > $i > $i ).

thf(func_def_111,type,
    sK55: $i > $i > $i ).

thf(func_def_112,type,
    sK56: $i > $i > $i ).

thf(func_def_113,type,
    sK57: $i > $i > $i ).

thf(func_def_114,type,
    sK58: $i > $i > $i > $i ).

thf(func_def_115,type,
    sK59: $i > $i ).

thf(func_def_116,type,
    sK60: $i > $i ).

thf(func_def_117,type,
    sK61: $i > $i ).

thf(func_def_118,type,
    sK62: $i > $i ).

thf(func_def_119,type,
    sK63: $i > $i > $i ).

thf(func_def_120,type,
    sK64: $i > $i > $i > $i ).

thf(func_def_121,type,
    sK65: $i > $i > $i > $i ).

thf(func_def_122,type,
    sK66: $i > $i > $i ).

thf(func_def_123,type,
    sK67: $i > $i > $i ).

thf(func_def_125,type,
    sK69: $i > $i ).

thf(func_def_126,type,
    sK70: $i > $i ).

thf(func_def_127,type,
    sK71: $i > $i ).

thf(func_def_128,type,
    sK72: $i > $o ).

thf(func_def_132,type,
    sK76: $i > $i ).

thf(func_def_141,type,
    sK85: $i > $i > $i ).

thf(func_def_143,type,
    sK87: $i > $o ).

thf(func_def_148,type,
    sK92: $i > $i > $i ).

thf(func_def_151,type,
    sK95: $i > $i ).

thf(func_def_157,type,
    ph101: 
      !>[X0: $tType] : X0 ).

thf(f1022,plain,
    $false,
    inference(subsumption_resolution,[status(thm)],[f1021,f474]) ).

thf(f474,plain,
    ( $true
   != ( in @ sK98 @ sK97 ) ),
    inference(cnf_transformation,[status(thm)],[f319]) ).

thf(f319,plain,
    ( ( noeltsimpempty = $true )
    & ( dsetconstrI = $true )
    & ( foundationAx = $true )
    & ( omegaSAx = $true )
    & ( wellorderingAx = $true )
    & ( setunionAx = $true )
    & ( setbeta = $true )
    & ( replAx = $true )
    & ( omegaIndAx = $true )
    & ( nonemptyE1 = $true )
    & ( exuE3e = $true )
    & ( emptyinunitempty = $true )
    & ( omega0Ax = $true )
    & ( exuE1 = $true )
    & ( descrp = $true )
    & ( setadjoinE = $true )
    & ( setadjoinIR = $true )
    & ( emptysetimpfalse = $true )
    & ( emptysetE = $true )
    & ( setext = $true )
    & ( setadjoinAx = $true )
    & ( powersetAx = $true )
    & ( nonemptyI1 = $true )
    & ( setadjoinIL = $true )
    & ( setextAx = $true )
    & ( notinemptyset = $true )
    & ( prop2setE = $true )
    & ( nonemptyI = $true )
    & ( emptysetAx = $true )
    & ( dsetconstrER = $true )
    & ( dsetconstrEL = $true )
    & ( $true
     != ( in @ sK98 @ sK97 ) )
    & ( sK99 != sK98 )
    & ( $true
      = ( in @ sK98 @ ( setadjoin @ sK99 @ sK97 ) ) )
    & ( emptyI = $true ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK97,sK98,sK99])],[f138,f318]) ).

thf(f318,plain,
    ( ? [X0: $i,X1: $i,X2: $i] :
        ( ( $true
         != ( in @ X1 @ X0 ) )
        & ( X1 != X2 )
        & ( $true
          = ( in @ X1 @ ( setadjoin @ X2 @ X0 ) ) ) )
   => ( ( $true
       != ( in @ sK98 @ sK97 ) )
      & ( sK99 != sK98 )
      & ( $true
        = ( in @ sK98 @ ( setadjoin @ sK99 @ sK97 ) ) ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f138,plain,
    ( ( noeltsimpempty = $true )
    & ( dsetconstrI = $true )
    & ( foundationAx = $true )
    & ( omegaSAx = $true )
    & ( wellorderingAx = $true )
    & ( setunionAx = $true )
    & ( setbeta = $true )
    & ( replAx = $true )
    & ( omegaIndAx = $true )
    & ( nonemptyE1 = $true )
    & ( exuE3e = $true )
    & ( emptyinunitempty = $true )
    & ( omega0Ax = $true )
    & ( exuE1 = $true )
    & ( descrp = $true )
    & ( setadjoinE = $true )
    & ( setadjoinIR = $true )
    & ( emptysetimpfalse = $true )
    & ( emptysetE = $true )
    & ( setext = $true )
    & ( setadjoinAx = $true )
    & ( powersetAx = $true )
    & ( nonemptyI1 = $true )
    & ( setadjoinIL = $true )
    & ( setextAx = $true )
    & ( notinemptyset = $true )
    & ( prop2setE = $true )
    & ( nonemptyI = $true )
    & ( emptysetAx = $true )
    & ( dsetconstrER = $true )
    & ( dsetconstrEL = $true )
    & ? [X0: $i,X1: $i,X2: $i] :
        ( ( $true
         != ( in @ X1 @ X0 ) )
        & ( X1 != X2 )
        & ( $true
          = ( in @ X1 @ ( setadjoin @ X2 @ X0 ) ) ) )
    & ( emptyI = $true ) ),
    inference(flattening,[status(thm)],[f137]) ).

thf(f137,plain,
    ( ? [X0: $i,X1: $i,X2: $i] :
        ( ( X1 != X2 )
        & ( $true
         != ( in @ X1 @ X0 ) )
        & ( $true
          = ( in @ X1 @ ( setadjoin @ X2 @ X0 ) ) ) )
    & ( setadjoinE = $true )
    & ( setadjoinIR = $true )
    & ( emptyinunitempty = $true )
    & ( setadjoinIL = $true )
    & ( nonemptyI1 = $true )
    & ( nonemptyI = $true )
    & ( nonemptyE1 = $true )
    & ( setbeta = $true )
    & ( noeltsimpempty = $true )
    & ( emptyI = $true )
    & ( setext = $true )
    & ( exuE3e = $true )
    & ( notinemptyset = $true )
    & ( emptysetimpfalse = $true )
    & ( emptysetE = $true )
    & ( prop2setE = $true )
    & ( exuE1 = $true )
    & ( dsetconstrER = $true )
    & ( dsetconstrEL = $true )
    & ( dsetconstrI = $true )
    & ( descrp = $true )
    & ( wellorderingAx = $true )
    & ( foundationAx = $true )
    & ( replAx = $true )
    & ( omegaIndAx = $true )
    & ( omegaSAx = $true )
    & ( omega0Ax = $true )
    & ( setunionAx = $true )
    & ( powersetAx = $true )
    & ( setadjoinAx = $true )
    & ( emptysetAx = $true )
    & ( setextAx = $true ) ),
    inference(ennf_transformation,[status(thm)],[f95]) ).

thf(f95,plain,
    ~ ( ( setextAx = $true )
     => ( ( emptysetAx = $true )
       => ( ( setadjoinAx = $true )
         => ( ( powersetAx = $true )
           => ( ( setunionAx = $true )
             => ( ( omega0Ax = $true )
               => ( ( omegaSAx = $true )
                 => ( ( omegaIndAx = $true )
                   => ( ( replAx = $true )
                     => ( ( foundationAx = $true )
                       => ( ( wellorderingAx = $true )
                         => ( ( descrp = $true )
                           => ( ( dsetconstrI = $true )
                             => ( ( dsetconstrEL = $true )
                               => ( ( dsetconstrER = $true )
                                 => ( ( exuE1 = $true )
                                   => ( ( prop2setE = $true )
                                     => ( ( emptysetE = $true )
                                       => ( ( emptysetimpfalse = $true )
                                         => ( ( notinemptyset = $true )
                                           => ( ( exuE3e = $true )
                                             => ( ( setext = $true )
                                               => ( ( emptyI = $true )
                                                 => ( ( noeltsimpempty = $true )
                                                   => ( ( setbeta = $true )
                                                     => ( ( nonemptyE1 = $true )
                                                       => ( ( nonemptyI = $true )
                                                         => ( ( nonemptyI1 = $true )
                                                           => ( ( setadjoinIL = $true )
                                                             => ( ( emptyinunitempty = $true )
                                                               => ( ( setadjoinIR = $true )
                                                                 => ( ( setadjoinE = $true )
                                                                   => ! [X0: $i,X1: $i,X2: $i] :
                                                                        ( ( $true
                                                                          = ( in @ X1 @ ( setadjoin @ X2 @ X0 ) ) )
                                                                       => ( ( X1 = X2 )
                                                                          | ( $true
                                                                            = ( in @ X1 @ X0 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    inference(fool_elimination,[status(thm)],[f94]) ).

thf(f94,plain,
    ~ ( setextAx
     => ( emptysetAx
       => ( setadjoinAx
         => ( powersetAx
           => ( setunionAx
             => ( omega0Ax
               => ( omegaSAx
                 => ( omegaIndAx
                   => ( replAx
                     => ( foundationAx
                       => ( wellorderingAx
                         => ( descrp
                           => ( dsetconstrI
                             => ( dsetconstrEL
                               => ( dsetconstrER
                                 => ( exuE1
                                   => ( prop2setE
                                     => ( emptysetE
                                       => ( emptysetimpfalse
                                         => ( notinemptyset
                                           => ( exuE3e
                                             => ( setext
                                               => ( emptyI
                                                 => ( noeltsimpempty
                                                   => ( setbeta
                                                     => ( nonemptyE1
                                                       => ( nonemptyI
                                                         => ( nonemptyI1
                                                           => ( setadjoinIL
                                                             => ( emptyinunitempty
                                                               => ( setadjoinIR
                                                                 => ( setadjoinE
                                                                   => ! [X0: $i,X1: $i,X2: $i] :
                                                                        ( ( in @ X1 @ ( setadjoin @ X2 @ X0 ) )
                                                                       => ( ( X1 = X2 )
                                                                          | ( in @ X1 @ X0 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    inference(rectify,[status(thm)],[f37]) ).

thf(f37,negated_conjecture,
    ~ ( setextAx
     => ( emptysetAx
       => ( setadjoinAx
         => ( powersetAx
           => ( setunionAx
             => ( omega0Ax
               => ( omegaSAx
                 => ( omegaIndAx
                   => ( replAx
                     => ( foundationAx
                       => ( wellorderingAx
                         => ( descrp
                           => ( dsetconstrI
                             => ( dsetconstrEL
                               => ( dsetconstrER
                                 => ( exuE1
                                   => ( prop2setE
                                     => ( emptysetE
                                       => ( emptysetimpfalse
                                         => ( notinemptyset
                                           => ( exuE3e
                                             => ( setext
                                               => ( emptyI
                                                 => ( noeltsimpempty
                                                   => ( setbeta
                                                     => ( nonemptyE1
                                                       => ( nonemptyI
                                                         => ( nonemptyI1
                                                           => ( setadjoinIL
                                                             => ( emptyinunitempty
                                                               => ( setadjoinIR
                                                                 => ( setadjoinE
                                                                   => ! [X3: $i,X2: $i,X1: $i] :
                                                                        ( ( in @ X2 @ ( setadjoin @ X1 @ X3 ) )
                                                                       => ( ( X1 = X2 )
                                                                          | ( in @ X2 @ X3 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    inference(negated_conjecture,[status(cth)],[f36]) ).

thf(f36,conjecture,
    ( setextAx
   => ( emptysetAx
     => ( setadjoinAx
       => ( powersetAx
         => ( setunionAx
           => ( omega0Ax
             => ( omegaSAx
               => ( omegaIndAx
                 => ( replAx
                   => ( foundationAx
                     => ( wellorderingAx
                       => ( descrp
                         => ( dsetconstrI
                           => ( dsetconstrEL
                             => ( dsetconstrER
                               => ( exuE1
                                 => ( prop2setE
                                   => ( emptysetE
                                     => ( emptysetimpfalse
                                       => ( notinemptyset
                                         => ( exuE3e
                                           => ( setext
                                             => ( emptyI
                                               => ( noeltsimpempty
                                                 => ( setbeta
                                                   => ( nonemptyE1
                                                     => ( nonemptyI
                                                       => ( nonemptyI1
                                                         => ( setadjoinIL
                                                           => ( emptyinunitempty
                                                             => ( setadjoinIR
                                                               => ( setadjoinE
                                                                 => ! [X3: $i,X2: $i,X1: $i] :
                                                                      ( ( in @ X2 @ ( setadjoin @ X1 @ X3 ) )
                                                                     => ( ( X1 = X2 )
                                                                        | ( in @ X2 @ X3 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    file('/export/starexec/sandbox2/tmp/tmp.Kc4guPEzhN/DTF2THF_32630.p',setadjoinOr) ).

thf(f1021,plain,
    ( $true
    = ( in @ sK98 @ sK97 ) ),
    inference(subsumption_resolution,[status(thm)],[f995,f473]) ).

thf(f473,plain,
    sK99 != sK98,
    inference(cnf_transformation,[status(thm)],[f319]) ).

thf(f995,plain,
    ( ( sK99 = sK98 )
    | ( $true
      = ( in @ sK98 @ sK97 ) ) ),
    inference(trivial_inequality_removal,[status(thm)],[f990]) ).

thf(f990,plain,
    ( ( sK99 = sK98 )
    | ( $true
      = ( in @ sK98 @ sK97 ) )
    | ( $true != $true ) ),
    inference(superposition,[status(thm)],[f676,f472]) ).

thf(f472,plain,
    ( $true
    = ( in @ sK98 @ ( setadjoin @ sK99 @ sK97 ) ) ),
    inference(cnf_transformation,[status(thm)],[f319]) ).

thf(f676,plain,
    ! [X2: $i,X0: $i,X1: $i] :
      ( ( ( in @ X0 @ ( setadjoin @ X1 @ X2 ) )
       != $true )
      | ( $true
        = ( in @ X0 @ X2 ) )
      | ( X0 = X1 ) ),
    inference(trivial_inequality_removal,[status(thm)],[f530]) ).

thf(f530,plain,
    ! [X2: $i,X0: $i,X1: $i] :
      ( ( ( in @ X0 @ ( setadjoin @ X1 @ X2 ) )
       != $true )
      | ( X0 = X1 )
      | ( $true != $true )
      | ( $true
        = ( in @ X0 @ X2 ) ) ),
    inference(definition_unfolding,[status(thm)],[f355,f485]) ).

thf(f485,plain,
    setadjoinAx = $true,
    inference(cnf_transformation,[status(thm)],[f319]) ).

thf(f355,plain,
    ! [X2: $i,X0: $i,X1: $i] :
      ( ( $true
        = ( in @ X0 @ X2 ) )
      | ( X0 = X1 )
      | ( ( in @ X0 @ ( setadjoin @ X1 @ X2 ) )
       != $true )
      | ( setadjoinAx != $true ) ),
    inference(cnf_transformation,[status(thm)],[f190]) ).

thf(f190,plain,
    ( ( ! [X0: $i,X1: $i,X2: $i] :
          ( ( ( ( in @ X0 @ ( setadjoin @ X1 @ X2 ) )
              = $true )
            | ( ( $true
               != ( in @ X0 @ X2 ) )
              & ( X0 != X1 ) ) )
          & ( ( $true
              = ( in @ X0 @ X2 ) )
            | ( X0 = X1 )
            | ( ( in @ X0 @ ( setadjoin @ X1 @ X2 ) )
             != $true ) ) )
      | ( setadjoinAx != $true ) )
    & ( ( setadjoinAx = $true )
      | ( ( ( ( $true
             != ( in @ sK25 @ sK27 ) )
            & ( sK25 != sK26 ) )
          | ( $true
           != ( in @ sK25 @ ( setadjoin @ sK26 @ sK27 ) ) ) )
        & ( ( $true
            = ( in @ sK25 @ sK27 ) )
          | ( sK25 = sK26 )
          | ( $true
            = ( in @ sK25 @ ( setadjoin @ sK26 @ sK27 ) ) ) ) ) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK25,sK26,sK27])],[f188,f189]) ).

thf(f189,plain,
    ( ? [X3: $i,X4: $i,X5: $i] :
        ( ( ( ( ( in @ X3 @ X5 )
             != $true )
            & ( X3 != X4 ) )
          | ( $true
           != ( in @ X3 @ ( setadjoin @ X4 @ X5 ) ) ) )
        & ( ( ( in @ X3 @ X5 )
            = $true )
          | ( X3 = X4 )
          | ( $true
            = ( in @ X3 @ ( setadjoin @ X4 @ X5 ) ) ) ) )
   => ( ( ( ( $true
           != ( in @ sK25 @ sK27 ) )
          & ( sK25 != sK26 ) )
        | ( $true
         != ( in @ sK25 @ ( setadjoin @ sK26 @ sK27 ) ) ) )
      & ( ( $true
          = ( in @ sK25 @ sK27 ) )
        | ( sK25 = sK26 )
        | ( $true
          = ( in @ sK25 @ ( setadjoin @ sK26 @ sK27 ) ) ) ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f188,plain,
    ( ( ! [X0: $i,X1: $i,X2: $i] :
          ( ( ( ( in @ X0 @ ( setadjoin @ X1 @ X2 ) )
              = $true )
            | ( ( $true
               != ( in @ X0 @ X2 ) )
              & ( X0 != X1 ) ) )
          & ( ( $true
              = ( in @ X0 @ X2 ) )
            | ( X0 = X1 )
            | ( ( in @ X0 @ ( setadjoin @ X1 @ X2 ) )
             != $true ) ) )
      | ( setadjoinAx != $true ) )
    & ( ( setadjoinAx = $true )
      | ? [X3: $i,X4: $i,X5: $i] :
          ( ( ( ( ( in @ X3 @ X5 )
               != $true )
              & ( X3 != X4 ) )
            | ( $true
             != ( in @ X3 @ ( setadjoin @ X4 @ X5 ) ) ) )
          & ( ( ( in @ X3 @ X5 )
              = $true )
            | ( X3 = X4 )
            | ( $true
              = ( in @ X3 @ ( setadjoin @ X4 @ X5 ) ) ) ) ) ) ),
    inference(rectify,[status(thm)],[f187]) ).

thf(f187,plain,
    ( ( ! [X0: $i,X1: $i,X2: $i] :
          ( ( ( ( in @ X0 @ ( setadjoin @ X1 @ X2 ) )
              = $true )
            | ( ( $true
               != ( in @ X0 @ X2 ) )
              & ( X0 != X1 ) ) )
          & ( ( $true
              = ( in @ X0 @ X2 ) )
            | ( X0 = X1 )
            | ( ( in @ X0 @ ( setadjoin @ X1 @ X2 ) )
             != $true ) ) )
      | ( setadjoinAx != $true ) )
    & ( ( setadjoinAx = $true )
      | ? [X0: $i,X1: $i,X2: $i] :
          ( ( ( ( $true
               != ( in @ X0 @ X2 ) )
              & ( X0 != X1 ) )
            | ( ( in @ X0 @ ( setadjoin @ X1 @ X2 ) )
             != $true ) )
          & ( ( $true
              = ( in @ X0 @ X2 ) )
            | ( X0 = X1 )
            | ( ( in @ X0 @ ( setadjoin @ X1 @ X2 ) )
              = $true ) ) ) ) ),
    inference(flattening,[status(thm)],[f186]) ).

thf(f186,plain,
    ( ( ! [X0: $i,X1: $i,X2: $i] :
          ( ( ( ( in @ X0 @ ( setadjoin @ X1 @ X2 ) )
              = $true )
            | ( ( $true
               != ( in @ X0 @ X2 ) )
              & ( X0 != X1 ) ) )
          & ( ( $true
              = ( in @ X0 @ X2 ) )
            | ( X0 = X1 )
            | ( ( in @ X0 @ ( setadjoin @ X1 @ X2 ) )
             != $true ) ) )
      | ( setadjoinAx != $true ) )
    & ( ( setadjoinAx = $true )
      | ? [X0: $i,X1: $i,X2: $i] :
          ( ( ( ( $true
               != ( in @ X0 @ X2 ) )
              & ( X0 != X1 ) )
            | ( ( in @ X0 @ ( setadjoin @ X1 @ X2 ) )
             != $true ) )
          & ( ( $true
              = ( in @ X0 @ X2 ) )
            | ( X0 = X1 )
            | ( ( in @ X0 @ ( setadjoin @ X1 @ X2 ) )
              = $true ) ) ) ) ),
    inference(nnf_transformation,[status(thm)],[f73]) ).

thf(f73,plain,
    ( ! [X0: $i,X1: $i,X2: $i] :
        ( ( ( in @ X0 @ ( setadjoin @ X1 @ X2 ) )
          = $true )
      <=> ( ( $true
            = ( in @ X0 @ X2 ) )
          | ( X0 = X1 ) ) )
  <=> ( setadjoinAx = $true ) ),
    inference(fool_elimination,[status(thm)],[f72]) ).

thf(f72,plain,
    ! [X0: $i,X1: $i,X2: $i] :
      ( ( ( in @ X0 @ ( setadjoin @ X1 @ X2 ) )
      <=> ( ( X0 = X1 )
          | ( in @ X0 @ X2 ) ) )
      = setadjoinAx ),
    inference(rectify,[status(thm)],[f4]) ).

thf(f4,axiom,
    ! [X2: $i,X1: $i,X3: $i] :
      ( ( ( in @ X2 @ ( setadjoin @ X1 @ X3 ) )
      <=> ( ( X1 = X2 )
          | ( in @ X2 @ X3 ) ) )
      = setadjoinAx ),
    file('/export/starexec/sandbox2/tmp/tmp.Kc4guPEzhN/DTF2THF_32630.p',setadjoinAx) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem  : SEU516^1 : TPTP v9.2.1. Released v3.7.0.
% 0.12/0.13  % Command  : /export/starexec/sandbox2/solver/bin/run_DT2H2X /export/starexec/sandbox2/benchmark/theBenchmark.p 300
% 0.16/0.34  % Computer : n028.cluster.edu
% 0.16/0.34  % Model    : x86_64 x86_64
% 0.16/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.16/0.34  % Memory   : 8042.1875MB
% 0.16/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.16/0.34  % CPULimit : 300
% 0.16/0.34  % WCLimit  : 300
% 0.16/0.34  % DateTime : Tue Feb 24 12:25:27 EST 2026
% 0.16/0.34  % CPUTime  : 
% 0.16/0.34  Running /export/starexec/sandbox2/solver/bin/run_DT2H2X /export/starexec/sandbox2/benchmark/theBenchmark.p 300
% 0.31/0.47  ---- Original DTF file ---
% 0.31/0.47  thf(spec,logic,$$dhol).
% 0.31/0.47  %------------------------------------------------------------------------------
% 0.31/0.47  % File     : SEU516^1 : TPTP v9.2.1. Released v3.7.0.
% 0.31/0.47  % Domain   : Set Theory
% 0.31/0.47  % Problem  : Preliminary Notions - Adjoining Elements to Sets
% 0.31/0.47  % Version  : Especial.
% 0.31/0.47  % English  : (! x:i.! A:i.! y:i.in y (setadjoin x A) -> y = x | in y A)
% 0.31/0.47  
% 0.31/0.47  % Refs     : [Bro08] Brown (2008), Email to G. Sutcliffe
% 0.31/0.47  % Source   : [Bro08]
% 0.31/0.47  % Names    : ZFC018g [Bro08]
% 0.31/0.47  
% 0.31/0.47  % Status   : Theorem
% 0.31/0.47  % Rating   : 0.11 v9.1.0, 0.12 v9.0.0, 0.30 v8.2.0, 0.23 v8.1.0, 0.00 v7.4.0, 0.11 v7.2.0, 0.00 v7.1.0, 0.25 v7.0.0, 0.14 v6.4.0, 0.17 v6.3.0, 0.20 v6.2.0, 0.14 v6.1.0, 0.29 v5.5.0, 0.33 v5.4.0, 0.40 v5.1.0, 0.60 v5.0.0, 0.40 v4.1.0, 0.67 v3.7.0
% 0.31/0.47  % Syntax   : Number of formulae    :   79 (  35 unt;  43 typ;  35 def)
% 0.31/0.47  %            Number of atoms       :  200 (  46 equ;   0 cnn)
% 0.31/0.47  %            Maximal formula atoms :   35 (   5 avg)
% 0.31/0.47  %            Number of connectives :  342 (   7   ~;   4   |;  18   &; 223   @)
% 0.31/0.47  %                                         (   7 <=>;  83  =>;   0  <=;   0 <~>)
% 0.31/0.47  %            Maximal formula depth :   40 (   2 avg)
% 0.31/0.47  %            Number of types       :    2 (   0 usr)
% 0.31/0.47  %            Number of type conns  :   26 (  26   >;   0   *;   0   +;   0  <<)
% 0.31/0.47  %            Number of symbols     :   45 (  43 usr;  35 con; 0-2 aty)
% 0.31/0.47  %            Number of variables   :  113 (  14   ^;  83   !;  16   ?; 113   :)
% 0.31/0.47  % SPC      : TH0_THM_EQU_NAR
% 0.31/0.47  
% 0.31/0.47  % Comments : http://mathgate.info/detsetitem.php?id=457
% 0.31/0.47  %------------------------------------------------------------------------------
% 0.31/0.47  thf(in_type,type,
% 0.31/0.47      in: $i > $i > $o ).
% 0.31/0.47  
% 0.31/0.47  thf(exu_type,type,
% 0.31/0.47      exu: ( $i > $o ) > $o ).
% 0.31/0.47  
% 0.31/0.47  thf(exu,definition,
% 0.31/0.47      ( exu
% 0.31/0.47      = ( ^ [Xphi: $i > $o] :
% 0.31/0.47          ? [Xx: $i] :
% 0.31/0.47            ( ( Xphi @ Xx )
% 0.31/0.47            & ! [Xy: $i] :
% 0.31/0.47                ( ( Xphi @ Xy )
% 0.31/0.47               => ( Xx = Xy ) ) ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(setextAx_type,type,
% 0.31/0.47      setextAx: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(setextAx,definition,
% 0.31/0.47      ( setextAx
% 0.31/0.47      = ( ! [A: $i,B: $i] :
% 0.31/0.47            ( ! [Xx: $i] :
% 0.31/0.47                ( ( in @ Xx @ A )
% 0.31/0.47              <=> ( in @ Xx @ B ) )
% 0.31/0.47           => ( A = B ) ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(emptyset_type,type,
% 0.31/0.47      emptyset: $i ).
% 0.31/0.47  
% 0.31/0.47  thf(emptysetAx_type,type,
% 0.31/0.47      emptysetAx: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(emptysetAx,definition,
% 0.31/0.47      ( emptysetAx
% 0.31/0.47      = ( ! [Xx: $i] :
% 0.31/0.47            ~ ( in @ Xx @ emptyset ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(setadjoin_type,type,
% 0.31/0.47      setadjoin: $i > $i > $i ).
% 0.31/0.47  
% 0.31/0.47  thf(setadjoinAx_type,type,
% 0.31/0.47      setadjoinAx: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(setadjoinAx,definition,
% 0.31/0.47      ( setadjoinAx
% 0.31/0.47      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 0.31/0.47            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 0.31/0.47          <=> ( ( Xy = Xx )
% 0.31/0.47              | ( in @ Xy @ A ) ) ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(powerset_type,type,
% 0.31/0.47      powerset: $i > $i ).
% 0.31/0.47  
% 0.31/0.47  thf(powersetAx_type,type,
% 0.31/0.47      powersetAx: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(powersetAx,definition,
% 0.31/0.47      ( powersetAx
% 0.31/0.47      = ( ! [A: $i,B: $i] :
% 0.31/0.47            ( ( in @ B @ ( powerset @ A ) )
% 0.31/0.47          <=> ! [Xx: $i] :
% 0.31/0.47                ( ( in @ Xx @ B )
% 0.31/0.47               => ( in @ Xx @ A ) ) ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(setunion_type,type,
% 0.31/0.47      setunion: $i > $i ).
% 0.31/0.47  
% 0.31/0.47  thf(setunionAx_type,type,
% 0.31/0.47      setunionAx: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(setunionAx,definition,
% 0.31/0.47      ( setunionAx
% 0.31/0.47      = ( ! [A: $i,Xx: $i] :
% 0.31/0.47            ( ( in @ Xx @ ( setunion @ A ) )
% 0.31/0.47          <=> ? [B: $i] :
% 0.31/0.47                ( ( in @ Xx @ B )
% 0.31/0.47                & ( in @ B @ A ) ) ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(omega_type,type,
% 0.31/0.47      omega: $i ).
% 0.31/0.47  
% 0.31/0.47  thf(omega0Ax_type,type,
% 0.31/0.47      omega0Ax: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(omega0Ax,definition,
% 0.31/0.47      ( omega0Ax
% 0.31/0.47      = ( in @ emptyset @ omega ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(omegaSAx_type,type,
% 0.31/0.47      omegaSAx: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(omegaSAx,definition,
% 0.31/0.47      ( omegaSAx
% 0.31/0.47      = ( ! [Xx: $i] :
% 0.31/0.47            ( ( in @ Xx @ omega )
% 0.31/0.47           => ( in @ ( setadjoin @ Xx @ Xx ) @ omega ) ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(omegaIndAx_type,type,
% 0.31/0.47      omegaIndAx: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(omegaIndAx,definition,
% 0.31/0.47      ( omegaIndAx
% 0.31/0.47      = ( ! [A: $i] :
% 0.31/0.47            ( ( ( in @ emptyset @ A )
% 0.31/0.47              & ! [Xx: $i] :
% 0.31/0.47                  ( ( ( in @ Xx @ omega )
% 0.31/0.47                    & ( in @ Xx @ A ) )
% 0.31/0.47                 => ( in @ ( setadjoin @ Xx @ Xx ) @ A ) ) )
% 0.31/0.47           => ! [Xx: $i] :
% 0.31/0.47                ( ( in @ Xx @ omega )
% 0.31/0.47               => ( in @ Xx @ A ) ) ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(replAx_type,type,
% 0.31/0.47      replAx: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(replAx,definition,
% 0.31/0.47      ( replAx
% 0.31/0.47      = ( ! [Xphi: $i > $i > $o,A: $i] :
% 0.31/0.47            ( ! [Xx: $i] :
% 0.31/0.47                ( ( in @ Xx @ A )
% 0.31/0.47               => ( exu
% 0.31/0.47                  @ ^ [Xy: $i] : ( Xphi @ Xx @ Xy ) ) )
% 0.31/0.47           => ? [B: $i] :
% 0.31/0.47              ! [Xx: $i] :
% 0.31/0.47                ( ( in @ Xx @ B )
% 0.31/0.47              <=> ? [Xy: $i] :
% 0.31/0.47                    ( ( in @ Xy @ A )
% 0.31/0.47                    & ( Xphi @ Xy @ Xx ) ) ) ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(foundationAx_type,type,
% 0.31/0.47      foundationAx: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(foundationAx,definition,
% 0.31/0.47      ( foundationAx
% 0.31/0.47      = ( ! [A: $i] :
% 0.31/0.47            ( ? [Xx: $i] : ( in @ Xx @ A )
% 0.31/0.47           => ? [B: $i] :
% 0.31/0.47                ( ( in @ B @ A )
% 0.31/0.47                & ~ ? [Xx: $i] :
% 0.31/0.47                      ( ( in @ Xx @ B )
% 0.31/0.47                      & ( in @ Xx @ A ) ) ) ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(wellorderingAx_type,type,
% 0.31/0.47      wellorderingAx: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(wellorderingAx,definition,
% 0.31/0.47      ( wellorderingAx
% 0.31/0.47      = ( ! [A: $i] :
% 0.31/0.47          ? [B: $i] :
% 0.31/0.47            ( ! [C: $i] :
% 0.31/0.47                ( ( in @ C @ B )
% 0.31/0.47               => ! [Xx: $i] :
% 0.31/0.47                    ( ( in @ Xx @ C )
% 0.31/0.47                   => ( in @ Xx @ A ) ) )
% 0.31/0.47            & ! [Xx: $i,Xy: $i] :
% 0.31/0.47                ( ( ( in @ Xx @ A )
% 0.31/0.47                  & ( in @ Xy @ A ) )
% 0.31/0.47               => ( ! [C: $i] :
% 0.31/0.47                      ( ( in @ C @ B )
% 0.31/0.47                     => ( ( in @ Xx @ C )
% 0.31/0.47                      <=> ( in @ Xy @ C ) ) )
% 0.31/0.47                 => ( Xx = Xy ) ) )
% 0.31/0.47            & ! [C: $i,D: $i] :
% 0.31/0.47                ( ( ( in @ C @ B )
% 0.31/0.47                  & ( in @ D @ B ) )
% 0.31/0.47               => ( ! [Xx: $i] :
% 0.31/0.47                      ( ( in @ Xx @ C )
% 0.31/0.47                     => ( in @ Xx @ D ) )
% 0.31/0.47                  | ! [Xx: $i] :
% 0.31/0.47                      ( ( in @ Xx @ D )
% 0.31/0.47                     => ( in @ Xx @ C ) ) ) )
% 0.31/0.47            & ! [C: $i] :
% 0.31/0.47                ( ( ! [Xx: $i] :
% 0.31/0.47                      ( ( in @ Xx @ C )
% 0.31/0.47                     => ( in @ Xx @ A ) )
% 0.31/0.47                  & ? [Xx: $i] : ( in @ Xx @ C ) )
% 0.31/0.47               => ? [D: $i,Xx: $i] :
% 0.31/0.47                    ( ( in @ D @ B )
% 0.31/0.47                    & ( in @ Xx @ C )
% 0.31/0.47                    & ~ ? [Xy: $i] :
% 0.31/0.47                          ( ( in @ Xy @ D )
% 0.31/0.47                          & ( in @ Xy @ C ) )
% 0.31/0.47                    & ! [E: $i] :
% 0.31/0.47                        ( ( in @ E @ B )
% 0.31/0.47                       => ( ! [Xy: $i] :
% 0.31/0.47                              ( ( in @ Xy @ E )
% 0.31/0.47                             => ( in @ Xy @ D ) )
% 0.31/0.47                          | ( in @ Xx @ E ) ) ) ) ) ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(descr_type,type,
% 0.31/0.47      descr: ( $i > $o ) > $i ).
% 0.31/0.47  
% 0.31/0.47  thf(descrp_type,type,
% 0.31/0.47      descrp: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(descrp,definition,
% 0.31/0.47      ( descrp
% 0.31/0.47      = ( ! [Xphi: $i > $o] :
% 0.31/0.47            ( ( exu
% 0.31/0.47              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.31/0.47           => ( Xphi
% 0.31/0.47              @ ( descr
% 0.31/0.47                @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(dsetconstr_type,type,
% 0.31/0.47      dsetconstr: $i > ( $i > $o ) > $i ).
% 0.31/0.47  
% 0.31/0.47  thf(dsetconstrI_type,type,
% 0.31/0.47      dsetconstrI: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(dsetconstrI,definition,
% 0.31/0.47      ( dsetconstrI
% 0.31/0.47      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.31/0.47            ( ( in @ Xx @ A )
% 0.31/0.47           => ( ( Xphi @ Xx )
% 0.31/0.47             => ( in @ Xx
% 0.31/0.47                @ ( dsetconstr @ A
% 0.31/0.47                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(dsetconstrEL_type,type,
% 0.31/0.47      dsetconstrEL: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(dsetconstrEL,definition,
% 0.31/0.47      ( dsetconstrEL
% 0.31/0.47      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.31/0.47            ( ( in @ Xx
% 0.31/0.47              @ ( dsetconstr @ A
% 0.31/0.47                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 0.31/0.47           => ( in @ Xx @ A ) ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(dsetconstrER_type,type,
% 0.31/0.47      dsetconstrER: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(dsetconstrER,definition,
% 0.31/0.47      ( dsetconstrER
% 0.31/0.47      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.31/0.47            ( ( in @ Xx
% 0.31/0.47              @ ( dsetconstr @ A
% 0.31/0.47                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 0.31/0.47           => ( Xphi @ Xx ) ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(exuE1_type,type,
% 0.31/0.47      exuE1: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(exuE1,definition,
% 0.31/0.47      ( exuE1
% 0.31/0.47      = ( ! [Xphi: $i > $o] :
% 0.31/0.47            ( ( exu
% 0.31/0.47              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.31/0.47           => ? [Xx: $i] :
% 0.31/0.47                ( ( Xphi @ Xx )
% 0.31/0.47                & ! [Xy: $i] :
% 0.31/0.47                    ( ( Xphi @ Xy )
% 0.31/0.47                   => ( Xx = Xy ) ) ) ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(prop2set_type,type,
% 0.31/0.47      prop2set: $o > $i ).
% 0.31/0.47  
% 0.31/0.47  thf(prop2set,definition,
% 0.31/0.47      ( prop2set
% 0.31/0.47      = ( ^ [Xphi: $o] :
% 0.31/0.47            ( dsetconstr @ ( powerset @ emptyset )
% 0.31/0.47            @ ^ [Xx: $i] : Xphi ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(prop2setE_type,type,
% 0.31/0.47      prop2setE: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(prop2setE,definition,
% 0.31/0.47      ( prop2setE
% 0.31/0.47      = ( ! [Xphi: $o,Xx: $i] :
% 0.31/0.47            ( ( in @ Xx @ ( prop2set @ Xphi ) )
% 0.31/0.47           => Xphi ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(emptysetE_type,type,
% 0.31/0.47      emptysetE: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(emptysetE,definition,
% 0.31/0.47      ( emptysetE
% 0.31/0.47      = ( ! [Xx: $i] :
% 0.31/0.47            ( ( in @ Xx @ emptyset )
% 0.31/0.47           => ! [Xphi: $o] : Xphi ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(emptysetimpfalse_type,type,
% 0.31/0.47      emptysetimpfalse: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(emptysetimpfalse,definition,
% 0.31/0.47      ( emptysetimpfalse
% 0.31/0.47      = ( ! [Xx: $i] :
% 0.31/0.47            ( ( in @ Xx @ emptyset )
% 0.31/0.47           => $false ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(notinemptyset_type,type,
% 0.31/0.47      notinemptyset: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(notinemptyset,definition,
% 0.31/0.47      ( notinemptyset
% 0.31/0.47      = ( ! [Xx: $i] :
% 0.31/0.47            ~ ( in @ Xx @ emptyset ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(exuE3e_type,type,
% 0.31/0.47      exuE3e: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(exuE3e,definition,
% 0.31/0.47      ( exuE3e
% 0.31/0.47      = ( ! [Xphi: $i > $o] :
% 0.31/0.47            ( ( exu
% 0.31/0.47              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.31/0.47           => ? [Xx: $i] : ( Xphi @ Xx ) ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(setext_type,type,
% 0.31/0.47      setext: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(setext,definition,
% 0.31/0.47      ( setext
% 0.31/0.47      = ( ! [A: $i,B: $i] :
% 0.31/0.47            ( ! [Xx: $i] :
% 0.31/0.47                ( ( in @ Xx @ A )
% 0.31/0.47               => ( in @ Xx @ B ) )
% 0.31/0.47           => ( ! [Xx: $i] :
% 0.31/0.47                  ( ( in @ Xx @ B )
% 0.31/0.47                 => ( in @ Xx @ A ) )
% 0.31/0.47             => ( A = B ) ) ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(emptyI_type,type,
% 0.31/0.47      emptyI: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(emptyI,definition,
% 0.31/0.47      ( emptyI
% 0.31/0.47      = ( ! [A: $i] :
% 0.31/0.47            ( ! [Xx: $i] :
% 0.31/0.47                ~ ( in @ Xx @ A )
% 0.31/0.47           => ( A = emptyset ) ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(noeltsimpempty_type,type,
% 0.31/0.47      noeltsimpempty: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(noeltsimpempty,definition,
% 0.31/0.47      ( noeltsimpempty
% 0.31/0.47      = ( ! [A: $i] :
% 0.31/0.47            ( ! [Xx: $i] :
% 0.31/0.47                ~ ( in @ Xx @ A )
% 0.31/0.47           => ( A = emptyset ) ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(setbeta_type,type,
% 0.31/0.47      setbeta: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(setbeta,definition,
% 0.31/0.47      ( setbeta
% 0.31/0.47      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.31/0.47            ( ( in @ Xx @ A )
% 0.31/0.47           => ( ( in @ Xx
% 0.31/0.47                @ ( dsetconstr @ A
% 0.31/0.47                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 0.31/0.47            <=> ( Xphi @ Xx ) ) ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(nonempty_type,type,
% 0.31/0.47      nonempty: $i > $o ).
% 0.31/0.47  
% 0.31/0.47  thf(nonempty,definition,
% 0.31/0.47      ( nonempty
% 0.31/0.47      = ( ^ [Xx: $i] : ( Xx != emptyset ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(nonemptyE1_type,type,
% 0.31/0.47      nonemptyE1: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(nonemptyE1,definition,
% 0.31/0.47      ( nonemptyE1
% 0.31/0.47      = ( ! [A: $i] :
% 0.31/0.47            ( ( nonempty @ A )
% 0.31/0.47           => ? [Xx: $i] : ( in @ Xx @ A ) ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(nonemptyI_type,type,
% 0.31/0.47      nonemptyI: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(nonemptyI,definition,
% 0.31/0.47      ( nonemptyI
% 0.31/0.47      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.31/0.47            ( ( in @ Xx @ A )
% 0.31/0.47           => ( ( Xphi @ Xx )
% 0.31/0.47             => ( nonempty
% 0.31/0.47                @ ( dsetconstr @ A
% 0.31/0.47                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(nonemptyI1_type,type,
% 0.31/0.47      nonemptyI1: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(nonemptyI1,definition,
% 0.31/0.47      ( nonemptyI1
% 0.31/0.47      = ( ! [A: $i] :
% 0.31/0.47            ( ? [Xx: $i] : ( in @ Xx @ A )
% 0.31/0.47           => ( nonempty @ A ) ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(setadjoinIL_type,type,
% 0.31/0.47      setadjoinIL: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(setadjoinIL,definition,
% 0.31/0.47      ( setadjoinIL
% 0.31/0.47      = ( ! [Xx: $i,Xy: $i] : ( in @ Xx @ ( setadjoin @ Xx @ Xy ) ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(emptyinunitempty_type,type,
% 0.31/0.47      emptyinunitempty: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(emptyinunitempty,definition,
% 0.31/0.47      ( emptyinunitempty
% 0.31/0.47      = ( in @ emptyset @ ( setadjoin @ emptyset @ emptyset ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(setadjoinIR_type,type,
% 0.31/0.47      setadjoinIR: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(setadjoinIR,definition,
% 0.31/0.47      ( setadjoinIR
% 0.31/0.47      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 0.31/0.47            ( ( in @ Xy @ A )
% 0.31/0.47           => ( in @ Xy @ ( setadjoin @ Xx @ A ) ) ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(setadjoinE_type,type,
% 0.31/0.47      setadjoinE: $o ).
% 0.31/0.47  
% 0.31/0.47  thf(setadjoinE,definition,
% 0.31/0.47      ( setadjoinE
% 0.31/0.47      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 0.31/0.47            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 0.31/0.47           => ! [Xphi: $o] :
% 0.31/0.47                ( ( ( Xy = Xx )
% 0.31/0.47                 => Xphi )
% 0.31/0.47               => ( ( ( in @ Xy @ A )
% 0.31/0.47                   => Xphi )
% 0.31/0.47                 => Xphi ) ) ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  thf(setadjoinOr,conjecture,
% 0.31/0.47      ( setextAx
% 0.31/0.47     => ( emptysetAx
% 0.31/0.47       => ( setadjoinAx
% 0.31/0.47         => ( powersetAx
% 0.31/0.47           => ( setunionAx
% 0.31/0.47             => ( omega0Ax
% 0.31/0.47               => ( omegaSAx
% 0.31/0.47                 => ( omegaIndAx
% 0.31/0.47                   => ( replAx
% 0.31/0.47                     => ( foundationAx
% 0.31/0.47                       => ( wellorderingAx
% 0.31/0.47                         => ( descrp
% 0.31/0.47                           => ( dsetconstrI
% 0.31/0.47                             => ( dsetconstrEL
% 0.31/0.47                               => ( dsetconstrER
% 0.31/0.47                                 => ( exuE1
% 0.31/0.47                                   => ( prop2setE
% 0.31/0.47                                     => ( emptysetE
% 0.31/0.47                                       => ( emptysetimpfalse
% 0.31/0.47                                         => ( notinemptyset
% 0.31/0.47                                           => ( exuE3e
% 0.31/0.47                                             => ( setext
% 0.31/0.47                                               => ( emptyI
% 0.31/0.47                                                 => ( noeltsimpempty
% 0.31/0.47                                                   => ( setbeta
% 0.31/0.47                                                     => ( nonemptyE1
% 0.31/0.47                                                       => ( nonemptyI
% 0.31/0.47                                                         => ( nonemptyI1
% 0.31/0.47                                                           => ( setadjoinIL
% 0.31/0.47                                                             => ( emptyinunitempty
% 0.31/0.47                                                               => ( setadjoinIR
% 0.31/0.47                                                                 => ( setadjoinE
% 0.31/0.47                                                                   => ! [Xx: $i,A: $i,Xy: $i] :
% 0.31/0.47                                                                        ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 0.31/0.47                                                                       => ( ( Xy = Xx )
% 0.31/0.47                                                                          | ( in @ Xy @ A ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ).
% 0.31/0.47  
% 0.31/0.47  %------------------------------------------------------------------------------
% 0.31/0.47  ------------------------
% 1.84/1.35  ---- Embedded in THF ---
% 1.84/1.35  %%% This output was generated by embedproblem, version 1.9.5 (library version 1.9).
% 1.84/1.35  %%% Generated on Tue Feb 24 12:25:28 EST 2026
% 1.84/1.35  %%% using '$$dhol' embedding, version 1.3.0.
% 1.84/1.35  %%% Logic specification used:
% 1.84/1.35  %%% thf(spec, logic, $$dhol).
% 1.84/1.35  
% 1.84/1.35  % SZS output start ListOfTHF for /export/starexec/sandbox2/tmp/tmp.Kc4guPEzhN/DTF2DTF32630.p
% See solution above
% 1.84/1.35  ------------------------
% 1.84/1.37  ---- Cleaned THF ---
% 1.84/1.37  thf(in_type,type,
% 1.84/1.37      in: $i > $i > $o ).
% 1.84/1.37  
% 1.84/1.37  thf(exu_type,type,
% 1.84/1.37      exu: ( $i > $o ) > $o ).
% 1.84/1.37  
% 1.84/1.37  thf(exu,definition,
% 1.84/1.37      ( exu
% 1.84/1.37      = ( ^ [Xphi: $i > $o] :
% 1.84/1.37          ? [Xx: $i] :
% 1.84/1.37            ( ( Xphi @ Xx )
% 1.84/1.37            & ! [Xy: $i] :
% 1.84/1.37                ( ( Xphi @ Xy )
% 1.84/1.37               => ( Xx = Xy ) ) ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(setextAx_type,type,
% 1.84/1.37      setextAx: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(setextAx,definition,
% 1.84/1.37      ( setextAx
% 1.84/1.37      = ( ! [A: $i,B: $i] :
% 1.84/1.37            ( ! [Xx: $i] :
% 1.84/1.37                ( ( in @ Xx @ A )
% 1.84/1.37              <=> ( in @ Xx @ B ) )
% 1.84/1.37           => ( A = B ) ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(emptyset_type,type,
% 1.84/1.37      emptyset: $i ).
% 1.84/1.37  
% 1.84/1.37  thf(emptysetAx_type,type,
% 1.84/1.37      emptysetAx: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(emptysetAx,definition,
% 1.84/1.37      ( emptysetAx
% 1.84/1.37      = ( ! [Xx: $i] :
% 1.84/1.37            ~ ( in @ Xx @ emptyset ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(setadjoin_type,type,
% 1.84/1.37      setadjoin: $i > $i > $i ).
% 1.84/1.37  
% 1.84/1.37  thf(setadjoinAx_type,type,
% 1.84/1.37      setadjoinAx: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(setadjoinAx,definition,
% 1.84/1.37      ( setadjoinAx
% 1.84/1.37      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 1.84/1.37            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 1.84/1.37          <=> ( ( Xy = Xx )
% 1.84/1.37              | ( in @ Xy @ A ) ) ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(powerset_type,type,
% 1.84/1.37      powerset: $i > $i ).
% 1.84/1.37  
% 1.84/1.37  thf(powersetAx_type,type,
% 1.84/1.37      powersetAx: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(powersetAx,definition,
% 1.84/1.37      ( powersetAx
% 1.84/1.37      = ( ! [A: $i,B: $i] :
% 1.84/1.37            ( ( in @ B @ ( powerset @ A ) )
% 1.84/1.37          <=> ! [Xx: $i] :
% 1.84/1.37                ( ( in @ Xx @ B )
% 1.84/1.37               => ( in @ Xx @ A ) ) ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(setunion_type,type,
% 1.84/1.37      setunion: $i > $i ).
% 1.84/1.37  
% 1.84/1.37  thf(setunionAx_type,type,
% 1.84/1.37      setunionAx: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(setunionAx,definition,
% 1.84/1.37      ( setunionAx
% 1.84/1.37      = ( ! [A: $i,Xx: $i] :
% 1.84/1.37            ( ( in @ Xx @ ( setunion @ A ) )
% 1.84/1.37          <=> ? [B: $i] :
% 1.84/1.37                ( ( in @ Xx @ B )
% 1.84/1.37                & ( in @ B @ A ) ) ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(omega_type,type,
% 1.84/1.37      omega: $i ).
% 1.84/1.37  
% 1.84/1.37  thf(omega0Ax_type,type,
% 1.84/1.37      omega0Ax: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(omega0Ax,definition,
% 1.84/1.37      ( omega0Ax
% 1.84/1.37      = ( in @ emptyset @ omega ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(omegaSAx_type,type,
% 1.84/1.37      omegaSAx: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(omegaSAx,definition,
% 1.84/1.37      ( omegaSAx
% 1.84/1.37      = ( ! [Xx: $i] :
% 1.84/1.37            ( ( in @ Xx @ omega )
% 1.84/1.37           => ( in @ ( setadjoin @ Xx @ Xx ) @ omega ) ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(omegaIndAx_type,type,
% 1.84/1.37      omegaIndAx: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(omegaIndAx,definition,
% 1.84/1.37      ( omegaIndAx
% 1.84/1.37      = ( ! [A: $i] :
% 1.84/1.37            ( ( ( in @ emptyset @ A )
% 1.84/1.37              & ! [Xx: $i] :
% 1.84/1.37                  ( ( ( in @ Xx @ omega )
% 1.84/1.37                    & ( in @ Xx @ A ) )
% 1.84/1.37                 => ( in @ ( setadjoin @ Xx @ Xx ) @ A ) ) )
% 1.84/1.37           => ! [Xx: $i] :
% 1.84/1.37                ( ( in @ Xx @ omega )
% 1.84/1.37               => ( in @ Xx @ A ) ) ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(replAx_type,type,
% 1.84/1.37      replAx: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(replAx,definition,
% 1.84/1.37      ( replAx
% 1.84/1.37      = ( ! [Xphi: $i > $i > $o,A: $i] :
% 1.84/1.37            ( ! [Xx: $i] :
% 1.84/1.37                ( ( in @ Xx @ A )
% 1.84/1.37               => ( exu
% 1.84/1.37                  @ ^ [Xy: $i] : ( Xphi @ Xx @ Xy ) ) )
% 1.84/1.37           => ? [B: $i] :
% 1.84/1.37              ! [Xx: $i] :
% 1.84/1.37                ( ( in @ Xx @ B )
% 1.84/1.37              <=> ? [Xy: $i] :
% 1.84/1.37                    ( ( in @ Xy @ A )
% 1.84/1.37                    & ( Xphi @ Xy @ Xx ) ) ) ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(foundationAx_type,type,
% 1.84/1.37      foundationAx: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(foundationAx,definition,
% 1.84/1.37      ( foundationAx
% 1.84/1.37      = ( ! [A: $i] :
% 1.84/1.37            ( ? [Xx: $i] : ( in @ Xx @ A )
% 1.84/1.37           => ? [B: $i] :
% 1.84/1.37                ( ( in @ B @ A )
% 1.84/1.37                & ~ ? [Xx: $i] :
% 1.84/1.37                      ( ( in @ Xx @ B )
% 1.84/1.37                      & ( in @ Xx @ A ) ) ) ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(wellorderingAx_type,type,
% 1.84/1.37      wellorderingAx: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(wellorderingAx,definition,
% 1.84/1.37      ( wellorderingAx
% 1.84/1.37      = ( ! [A: $i] :
% 1.84/1.37          ? [B: $i] :
% 1.84/1.37            ( ! [C: $i] :
% 1.84/1.37                ( ( in @ C @ B )
% 1.84/1.37               => ! [Xx: $i] :
% 1.84/1.37                    ( ( in @ Xx @ C )
% 1.84/1.37                   => ( in @ Xx @ A ) ) )
% 1.84/1.37            & ! [Xx: $i,Xy: $i] :
% 1.84/1.37                ( ( ( in @ Xx @ A )
% 1.84/1.37                  & ( in @ Xy @ A ) )
% 1.84/1.37               => ( ! [C: $i] :
% 1.84/1.37                      ( ( in @ C @ B )
% 1.84/1.37                     => ( ( in @ Xx @ C )
% 1.84/1.37                      <=> ( in @ Xy @ C ) ) )
% 1.84/1.37                 => ( Xx = Xy ) ) )
% 1.84/1.37            & ! [C: $i,D: $i] :
% 1.84/1.37                ( ( ( in @ C @ B )
% 1.84/1.37                  & ( in @ D @ B ) )
% 1.84/1.37               => ( ! [Xx: $i] :
% 1.84/1.37                      ( ( in @ Xx @ C )
% 1.84/1.37                     => ( in @ Xx @ D ) )
% 1.84/1.37                  | ! [Xx: $i] :
% 1.84/1.37                      ( ( in @ Xx @ D )
% 1.84/1.37                     => ( in @ Xx @ C ) ) ) )
% 1.84/1.37            & ! [C: $i] :
% 1.84/1.37                ( ( ! [Xx: $i] :
% 1.84/1.37                      ( ( in @ Xx @ C )
% 1.84/1.37                     => ( in @ Xx @ A ) )
% 1.84/1.37                  & ? [Xx: $i] : ( in @ Xx @ C ) )
% 1.84/1.37               => ? [D: $i,Xx: $i] :
% 1.84/1.37                    ( ( in @ D @ B )
% 1.84/1.37                    & ( in @ Xx @ C )
% 1.84/1.37                    & ~ ? [Xy: $i] :
% 1.84/1.37                          ( ( in @ Xy @ D )
% 1.84/1.37                          & ( in @ Xy @ C ) )
% 1.84/1.37                    & ! [E: $i] :
% 1.84/1.37                        ( ( in @ E @ B )
% 1.84/1.37                       => ( ! [Xy: $i] :
% 1.84/1.37                              ( ( in @ Xy @ E )
% 1.84/1.37                             => ( in @ Xy @ D ) )
% 1.84/1.37                          | ( in @ Xx @ E ) ) ) ) ) ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(descr_type,type,
% 1.84/1.37      descr: ( $i > $o ) > $i ).
% 1.84/1.37  
% 1.84/1.37  thf(descrp_type,type,
% 1.84/1.37      descrp: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(descrp,definition,
% 1.84/1.37      ( descrp
% 1.84/1.37      = ( ! [Xphi: $i > $o] :
% 1.84/1.37            ( ( exu
% 1.84/1.37              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 1.84/1.37           => ( Xphi
% 1.84/1.37              @ ( descr
% 1.84/1.37                @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(dsetconstr_type,type,
% 1.84/1.37      dsetconstr: $i > ( $i > $o ) > $i ).
% 1.84/1.37  
% 1.84/1.37  thf(dsetconstrI_type,type,
% 1.84/1.37      dsetconstrI: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(dsetconstrI,definition,
% 1.84/1.37      ( dsetconstrI
% 1.84/1.37      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 1.84/1.37            ( ( in @ Xx @ A )
% 1.84/1.37           => ( ( Xphi @ Xx )
% 1.84/1.37             => ( in @ Xx
% 1.84/1.37                @ ( dsetconstr @ A
% 1.84/1.37                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(dsetconstrEL_type,type,
% 1.84/1.37      dsetconstrEL: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(dsetconstrEL,definition,
% 1.84/1.37      ( dsetconstrEL
% 1.84/1.37      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 1.84/1.37            ( ( in @ Xx
% 1.84/1.37              @ ( dsetconstr @ A
% 1.84/1.37                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 1.84/1.37           => ( in @ Xx @ A ) ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(dsetconstrER_type,type,
% 1.84/1.37      dsetconstrER: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(dsetconstrER,definition,
% 1.84/1.37      ( dsetconstrER
% 1.84/1.37      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 1.84/1.37            ( ( in @ Xx
% 1.84/1.37              @ ( dsetconstr @ A
% 1.84/1.37                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 1.84/1.37           => ( Xphi @ Xx ) ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(exuE1_type,type,
% 1.84/1.37      exuE1: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(exuE1,definition,
% 1.84/1.37      ( exuE1
% 1.84/1.37      = ( ! [Xphi: $i > $o] :
% 1.84/1.37            ( ( exu
% 1.84/1.37              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 1.84/1.37           => ? [Xx: $i] :
% 1.84/1.37                ( ( Xphi @ Xx )
% 1.84/1.37                & ! [Xy: $i] :
% 1.84/1.37                    ( ( Xphi @ Xy )
% 1.84/1.37                   => ( Xx = Xy ) ) ) ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(prop2set_type,type,
% 1.84/1.37      prop2set: $o > $i ).
% 1.84/1.37  
% 1.84/1.37  thf(prop2set,definition,
% 1.84/1.37      ( prop2set
% 1.84/1.37      = ( ^ [Xphi: $o] :
% 1.84/1.37            ( dsetconstr @ ( powerset @ emptyset )
% 1.84/1.37            @ ^ [Xx: $i] : Xphi ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(prop2setE_type,type,
% 1.84/1.37      prop2setE: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(prop2setE,definition,
% 1.84/1.37      ( prop2setE
% 1.84/1.37      = ( ! [Xphi: $o,Xx: $i] :
% 1.84/1.37            ( ( in @ Xx @ ( prop2set @ Xphi ) )
% 1.84/1.37           => Xphi ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(emptysetE_type,type,
% 1.84/1.37      emptysetE: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(emptysetE,definition,
% 1.84/1.37      ( emptysetE
% 1.84/1.37      = ( ! [Xx: $i] :
% 1.84/1.37            ( ( in @ Xx @ emptyset )
% 1.84/1.37           => ! [Xphi: $o] : Xphi ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(emptysetimpfalse_type,type,
% 1.84/1.37      emptysetimpfalse: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(emptysetimpfalse,definition,
% 1.84/1.37      ( emptysetimpfalse
% 1.84/1.37      = ( ! [Xx: $i] :
% 1.84/1.37            ( ( in @ Xx @ emptyset )
% 1.84/1.37           => $false ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(notinemptyset_type,type,
% 1.84/1.37      notinemptyset: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(notinemptyset,definition,
% 1.84/1.37      ( notinemptyset
% 1.84/1.37      = ( ! [Xx: $i] :
% 1.84/1.37            ~ ( in @ Xx @ emptyset ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(exuE3e_type,type,
% 1.84/1.37      exuE3e: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(exuE3e,definition,
% 1.84/1.37      ( exuE3e
% 1.84/1.37      = ( ! [Xphi: $i > $o] :
% 1.84/1.37            ( ( exu
% 1.84/1.37              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 1.84/1.37           => ? [Xx: $i] : ( Xphi @ Xx ) ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(setext_type,type,
% 1.84/1.37      setext: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(setext,definition,
% 1.84/1.37      ( setext
% 1.84/1.37      = ( ! [A: $i,B: $i] :
% 1.84/1.37            ( ! [Xx: $i] :
% 1.84/1.37                ( ( in @ Xx @ A )
% 1.84/1.37               => ( in @ Xx @ B ) )
% 1.84/1.37           => ( ! [Xx: $i] :
% 1.84/1.37                  ( ( in @ Xx @ B )
% 1.84/1.37                 => ( in @ Xx @ A ) )
% 1.84/1.37             => ( A = B ) ) ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(emptyI_type,type,
% 1.84/1.37      emptyI: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(emptyI,definition,
% 1.84/1.37      ( emptyI
% 1.84/1.37      = ( ! [A: $i] :
% 1.84/1.37            ( ! [Xx: $i] :
% 1.84/1.37                ~ ( in @ Xx @ A )
% 1.84/1.37           => ( A = emptyset ) ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(noeltsimpempty_type,type,
% 1.84/1.37      noeltsimpempty: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(noeltsimpempty,definition,
% 1.84/1.37      ( noeltsimpempty
% 1.84/1.37      = ( ! [A: $i] :
% 1.84/1.37            ( ! [Xx: $i] :
% 1.84/1.37                ~ ( in @ Xx @ A )
% 1.84/1.37           => ( A = emptyset ) ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(setbeta_type,type,
% 1.84/1.37      setbeta: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(setbeta,definition,
% 1.84/1.37      ( setbeta
% 1.84/1.37      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 1.84/1.37            ( ( in @ Xx @ A )
% 1.84/1.37           => ( ( in @ Xx
% 1.84/1.37                @ ( dsetconstr @ A
% 1.84/1.37                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 1.84/1.37            <=> ( Xphi @ Xx ) ) ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(nonempty_type,type,
% 1.84/1.37      nonempty: $i > $o ).
% 1.84/1.37  
% 1.84/1.37  thf(nonempty,definition,
% 1.84/1.37      ( nonempty
% 1.84/1.37      = ( ^ [Xx: $i] : ( Xx != emptyset ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(nonemptyE1_type,type,
% 1.84/1.37      nonemptyE1: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(nonemptyE1,definition,
% 1.84/1.37      ( nonemptyE1
% 1.84/1.37      = ( ! [A: $i] :
% 1.84/1.37            ( ( nonempty @ A )
% 1.84/1.37           => ? [Xx: $i] : ( in @ Xx @ A ) ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(nonemptyI_type,type,
% 1.84/1.37      nonemptyI: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(nonemptyI,definition,
% 1.84/1.37      ( nonemptyI
% 1.84/1.37      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 1.84/1.37            ( ( in @ Xx @ A )
% 1.84/1.37           => ( ( Xphi @ Xx )
% 1.84/1.37             => ( nonempty
% 1.84/1.37                @ ( dsetconstr @ A
% 1.84/1.37                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(nonemptyI1_type,type,
% 1.84/1.37      nonemptyI1: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(nonemptyI1,definition,
% 1.84/1.37      ( nonemptyI1
% 1.84/1.37      = ( ! [A: $i] :
% 1.84/1.37            ( ? [Xx: $i] : ( in @ Xx @ A )
% 1.84/1.37           => ( nonempty @ A ) ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(setadjoinIL_type,type,
% 1.84/1.37      setadjoinIL: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(setadjoinIL,definition,
% 1.84/1.37      ( setadjoinIL
% 1.84/1.37      = ( ! [Xx: $i,Xy: $i] : ( in @ Xx @ ( setadjoin @ Xx @ Xy ) ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(emptyinunitempty_type,type,
% 1.84/1.37      emptyinunitempty: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(emptyinunitempty,definition,
% 1.84/1.37      ( emptyinunitempty
% 1.84/1.37      = ( in @ emptyset @ ( setadjoin @ emptyset @ emptyset ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(setadjoinIR_type,type,
% 1.84/1.37      setadjoinIR: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(setadjoinIR,definition,
% 1.84/1.37      ( setadjoinIR
% 1.84/1.37      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 1.84/1.37            ( ( in @ Xy @ A )
% 1.84/1.37           => ( in @ Xy @ ( setadjoin @ Xx @ A ) ) ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(setadjoinE_type,type,
% 1.84/1.37      setadjoinE: $o ).
% 1.84/1.37  
% 1.84/1.37  thf(setadjoinE,definition,
% 1.84/1.37      ( setadjoinE
% 1.84/1.37      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 1.84/1.37            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 1.84/1.37           => ! [Xphi: $o] :
% 1.84/1.37                ( ( ( Xy = Xx )
% 1.84/1.37                 => Xphi )
% 1.84/1.37               => ( ( ( in @ Xy @ A )
% 1.84/1.37                   => Xphi )
% 1.84/1.37                 => Xphi ) ) ) ) ) ).
% 1.84/1.37  
% 1.84/1.37  thf(setadjoinOr,conjecture,
% 1.84/1.37      ( setextAx
% 1.84/1.37     => ( emptysetAx
% 1.84/1.37       => ( setadjoinAx
% 1.84/1.37         => ( powersetAx
% 1.84/1.37           => ( setunionAx
% 1.84/1.37             => ( omega0Ax
% 1.84/1.37               => ( omegaSAx
% 1.84/1.37                 => ( omegaIndAx
% 1.84/1.37                   => ( replAx
% 1.84/1.37                     => ( foundationAx
% 1.84/1.37                       => ( wellorderingAx
% 1.84/1.37                         => ( descrp
% 1.84/1.37                           => ( dsetconstrI
% 1.84/1.37                             => ( dsetconstrEL
% 1.84/1.37                               => ( dsetconstrER
% 1.84/1.37                                 => ( exuE1
% 1.84/1.37                                   => ( prop2setE
% 1.84/1.37                                     => ( emptysetE
% 1.84/1.37                                       => ( emptysetimpfalse
% 1.84/1.37                                         => ( notinemptyset
% 1.84/1.37                                           => ( exuE3e
% 1.84/1.37                                             => ( setext
% 1.84/1.37                                               => ( emptyI
% 1.84/1.37                                                 => ( noeltsimpempty
% 1.84/1.37                                                   => ( setbeta
% 1.84/1.37                                                     => ( nonemptyE1
% 1.84/1.37                                                       => ( nonemptyI
% 1.84/1.37                                                         => ( nonemptyI1
% 1.84/1.37                                                           => ( setadjoinIL
% 1.84/1.37                                                             => ( emptyinunitempty
% 1.84/1.37                                                               => ( setadjoinIR
% 1.84/1.37                                                                 => ( setadjoinE
% 1.84/1.37                                                                   => ! [Xx: $i,A: $i,Xy: $i] :
% 1.84/1.37                                                                        ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 1.84/1.37                                                                       => ( ( Xy = Xx )
% 1.84/1.37                                                                          | ( in @ Xy @ A ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ).
% 1.84/1.37  ------------------------
% 1.84/1.39  % (32749)lrs+10_1:1_au=on:inj=on:i=2:si=on:rtra=on_0 on DTF2THF_32630 for (2999ds/2Mi)
% 1.84/1.39  % (32750)lrs+1002_1:128_aac=none:au=on:cnfonf=lazy_not_gen_be_off:sos=all:i=2:si=on:rtra=on_0 on DTF2THF_32630 for (2999ds/2Mi)
% 1.84/1.39  % (32749)Instruction limit reached!
% 1.84/1.39  % (32749)------------------------------
% 1.84/1.39  % (32749)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.84/1.39  % (32749)Termination reason: Unknown
% 1.84/1.39  % (32749)Termination phase: shuffling
% 1.84/1.39  
% 1.84/1.39  % (32749)Memory used [KB]: 1023
% 1.84/1.39  % (32749)Time elapsed: 0.003 s
% 1.84/1.39  % (32749)Instructions burned: 4 (million)
% 1.84/1.39  % (32749)------------------------------
% 1.84/1.39  % (32749)------------------------------
% 1.84/1.39  % (32750)Instruction limit reached!
% 1.84/1.39  % (32750)------------------------------
% 1.84/1.39  % (32750)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.84/1.39  % (32750)Termination reason: Unknown
% 1.84/1.39  % (32750)Termination phase: shuffling
% 1.84/1.39  
% 1.84/1.39  % (32750)Memory used [KB]: 1023
% 1.84/1.39  % (32750)Time elapsed: 0.002 s
% 1.84/1.39  % (32750)Instructions burned: 3 (million)
% 1.84/1.39  % (32750)------------------------------
% 1.84/1.39  % (32750)------------------------------
% 1.84/1.40  % (32746)lrs+1002_1:8_bd=off:fd=off:hud=10:tnu=1:i=183:si=on:rtra=on_0 on DTF2THF_32630 for (2999ds/183Mi)
% 1.84/1.40  % (32748)dis+1010_1:1_au=on:cbe=off:chr=on:fsr=off:hfsq=on:nm=64:sos=theory:sp=weighted_frequency:i=27:si=on:rtra=on_0 on DTF2THF_32630 for (2999ds/27Mi)
% 1.84/1.40  % (32747)lrs+10_1:1_c=on:cnfonf=conj_eager:fd=off:fe=off:kws=frequency:spb=intro:i=4:si=on:rtra=on_0 on DTF2THF_32630 for (2999ds/4Mi)
% 1.84/1.40  % (32751)lrs+1002_1:1_au=on:bd=off:e2e=on:sd=2:sos=on:ss=axioms:i=275:si=on:rtra=on_0 on DTF2THF_32630 for (2999ds/275Mi)
% 1.84/1.40  % (32752)lrs+1004_1:128_cond=on:e2e=on:sp=weighted_frequency:i=18:si=on:rtra=on_0 on DTF2THF_32630 for (2999ds/18Mi)
% 1.96/1.40  % (32747)Instruction limit reached!
% 1.96/1.40  % (32747)------------------------------
% 1.96/1.40  % (32747)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.96/1.40  % (32747)Termination reason: Unknown
% 1.96/1.40  % (32747)Termination phase: shuffling
% 1.96/1.40  
% 1.96/1.40  % (32747)Memory used [KB]: 1151
% 1.96/1.40  % (32747)Time elapsed: 0.005 s
% 1.96/1.40  % (32747)Instructions burned: 5 (million)
% 1.96/1.40  % (32747)------------------------------
% 1.96/1.40  % (32747)------------------------------
% 1.96/1.40  % (32754)lrs+1002_1:1_cnfonf=lazy_not_be_gen:hud=14:prag=on:sp=weighted_frequency:tnu=1:i=37:si=on:rtra=on_0 on DTF2THF_32630 for (2999ds/37Mi)
% 1.96/1.40  % (32753)lrs+10_1:1_bet=on:cnfonf=off:fd=off:hud=5:inj=on:i=3:si=on:rtra=on_0 on DTF2THF_32630 for (2999ds/3Mi)
% 1.96/1.40  % (32753)Instruction limit reached!
% 1.96/1.40  % (32753)------------------------------
% 1.96/1.40  % (32753)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.96/1.40  % (32753)Termination reason: Unknown
% 1.96/1.40  % (32753)Termination phase: shuffling
% 1.96/1.40  
% 1.96/1.40  % (32753)Memory used [KB]: 1023
% 1.96/1.40  % (32753)Time elapsed: 0.003 s
% 1.96/1.40  % (32753)Instructions burned: 4 (million)
% 1.96/1.40  % (32753)------------------------------
% 1.96/1.40  % (32753)------------------------------
% 1.96/1.41  % (32752)Instruction limit reached!
% 1.96/1.41  % (32752)------------------------------
% 1.96/1.41  % (32752)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.96/1.41  % (32752)Termination reason: Unknown
% 1.96/1.41  % (32752)Termination phase: Property scanning
% 1.96/1.41  
% 1.96/1.41  % (32752)Memory used [KB]: 1407
% 1.96/1.41  % (32752)Time elapsed: 0.012 s
% 1.96/1.41  % (32752)Instructions burned: 18 (million)
% 1.96/1.41  % (32752)------------------------------
% 1.96/1.41  % (32752)------------------------------
% 1.96/1.41  % (32754)Instruction limit reached!
% 1.96/1.41  % (32754)------------------------------
% 1.96/1.41  % (32754)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.96/1.41  % (32754)Termination reason: Unknown
% 1.96/1.41  % (32754)Termination phase: Saturation
% 1.96/1.41  
% 1.96/1.41  % (32754)Memory used [KB]: 5884
% 1.96/1.41  % (32754)Time elapsed: 0.011 s
% 1.96/1.41  % (32754)Instructions burned: 38 (million)
% 1.96/1.41  % (32754)------------------------------
% 1.96/1.41  % (32754)------------------------------
% 1.96/1.41  % (32748)Instruction limit reached!
% 1.96/1.41  % (32748)------------------------------
% 1.96/1.41  % (32748)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.96/1.41  % (32748)Termination reason: Unknown
% 1.96/1.41  % (32748)Termination phase: Saturation
% 1.96/1.41  
% 1.96/1.41  % (32748)Memory used [KB]: 5756
% 1.96/1.41  % (32748)Time elapsed: 0.017 s
% 1.96/1.41  % (32748)Instructions burned: 28 (million)
% 1.96/1.41  % (32748)------------------------------
% 1.96/1.41  % (32748)------------------------------
% 1.96/1.41  % (32756)dis+21_1:1_cbe=off:cnfonf=off:fs=off:fsr=off:hud=1:inj=on:i=3:si=on:rtra=on_0 on DTF2THF_32630 for (2999ds/3Mi)
% 1.96/1.41  % (32756)Instruction limit reached!
% 1.96/1.41  % (32756)------------------------------
% 1.96/1.41  % (32756)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.96/1.41  % (32756)Termination reason: Unknown
% 1.96/1.41  % (32756)Termination phase: shuffling
% 1.96/1.41  
% 1.96/1.41  % (32756)Memory used [KB]: 1023
% 1.96/1.41  % (32756)Time elapsed: 0.003 s
% 1.96/1.41  % (32756)Instructions burned: 4 (million)
% 1.96/1.41  % (32756)------------------------------
% 1.96/1.41  % (32756)------------------------------
% 1.96/1.41  % (32755)lrs+2_16:1_acc=model:au=on:bd=off:c=on:e2e=on:nm=2:sos=all:i=15:si=on:rtra=on_0 on DTF2THF_32630 for (2999ds/15Mi)
% 1.96/1.42  % (32758)lrs+10_1:1_av=off:chr=on:plsq=on:slsq=on:i=7:si=on:rtra=on_0 on DTF2THF_32630 for (2999ds/7Mi)
% 1.96/1.42  % (32758)Instruction limit reached!
% 1.96/1.42  % (32758)------------------------------
% 1.96/1.42  % (32758)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.96/1.42  % (32758)Termination reason: Unknown
% 1.96/1.42  % (32758)Termination phase: Property scanning
% 1.96/1.42  
% 1.96/1.42  % (32758)Memory used [KB]: 1151
% 1.96/1.42  % (32758)Time elapsed: 0.003 s
% 1.96/1.42  % (32758)Instructions burned: 8 (million)
% 1.96/1.42  % (32758)------------------------------
% 1.96/1.42  % (32758)------------------------------
% 1.96/1.42  % (32755)Instruction limit reached!
% 1.96/1.42  % (32755)------------------------------
% 1.96/1.42  % (32755)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.96/1.42  % (32755)Termination reason: Unknown
% 1.96/1.42  % (32755)Termination phase: Property scanning
% 1.96/1.42  
% 1.96/1.42  % (32755)Memory used [KB]: 1535
% 1.96/1.42  % (32755)Time elapsed: 0.008 s
% 1.96/1.42  % (32755)Instructions burned: 16 (million)
% 1.96/1.42  % (32755)------------------------------
% 1.96/1.42  % (32755)------------------------------
% 1.96/1.42  % (32760)lrs+21_1:1_au=on:cnfonf=off:fd=preordered:fe=off:fsr=off:hud=11:inj=on:kws=precedence:s2pl=no:sp=weighted_frequency:tgt=full:i=3:si=on:rtra=on_0 on DTF2THF_32630 for (2999ds/3Mi)
% 1.96/1.42  % (32757)lrs+1002_1:1_aac=none:au=on:cnfonf=lazy_gen:plsq=on:plsqc=1:plsqr=4203469,65536:i=1041:si=on:rtra=on_0 on DTF2THF_32630 for (2999ds/1041Mi)
% 1.96/1.42  % (32760)Instruction limit reached!
% 1.96/1.42  % (32760)------------------------------
% 1.96/1.42  % (32760)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.96/1.42  % (32760)Termination reason: Unknown
% 1.96/1.42  % (32760)Termination phase: shuffling
% 1.96/1.42  
% 1.96/1.42  % (32760)Memory used [KB]: 1023
% 1.96/1.42  % (32760)Time elapsed: 0.003 s
% 1.96/1.42  % (32760)Instructions burned: 4 (million)
% 1.96/1.42  % (32760)------------------------------
% 1.96/1.42  % (32760)------------------------------
% 1.96/1.43  % (32759)lrs+10_1:1_acc=on:amm=sco:cs=on:tgt=full:i=16:si=on:rtra=on_0 on DTF2THF_32630 for (2999ds/16Mi)
% 1.96/1.43  % (32761)lrs+2_1:1_apa=on:au=on:bd=preordered:cnfonf=off:cs=on:ixr=off:sos=on:i=3:si=on:rtra=on_0 on DTF2THF_32630 for (2999ds/3Mi)
% 1.96/1.43  % (32761)Instruction limit reached!
% 1.96/1.43  % (32761)------------------------------
% 1.96/1.43  % (32761)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.96/1.43  % (32761)Termination reason: Unknown
% 1.96/1.43  % (32761)Termination phase: shuffling
% 1.96/1.43  
% 1.96/1.43  % (32761)Memory used [KB]: 1023
% 1.96/1.43  % (32761)Time elapsed: 0.002 s
% 1.96/1.43  % (32761)Instructions burned: 4 (million)
% 1.96/1.43  % (32761)------------------------------
% 1.96/1.43  % (32761)------------------------------
% 1.96/1.43  % (32762)lrs+10_1:1_cnfonf=off:cs=on:hud=3:prag=on:sup=off:i=7:si=on:rtra=on_0 on DTF2THF_32630 for (2999ds/7Mi)
% 1.96/1.43  % (32762)Instruction limit reached!
% 1.96/1.43  % (32762)------------------------------
% 1.96/1.43  % (32762)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.96/1.43  % (32762)Termination reason: Unknown
% 1.96/1.43  % (32762)Termination phase: Property scanning
% 1.96/1.43  
% 1.96/1.43  % (32762)Memory used [KB]: 1151
% 1.96/1.43  % (32762)Time elapsed: 0.004 s
% 1.96/1.43  % (32762)Instructions burned: 8 (million)
% 1.96/1.43  % (32762)------------------------------
% 1.96/1.43  % (32762)------------------------------
% 1.96/1.43  % (32763)dis+1002_1:1_add=large:cnfonf=lazy_pi_sigma_gen:fe=off:prag=on:i=3:si=on:rtra=on_0 on DTF2THF_32630 for (2999ds/3Mi)
% 1.96/1.44  % (32763)Instruction limit reached!
% 1.96/1.44  % (32763)------------------------------
% 1.96/1.44  % (32763)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.96/1.44  % (32763)Termination reason: Unknown
% 1.96/1.44  % (32763)Termination phase: shuffling
% 1.96/1.44  
% 1.96/1.44  % (32763)Memory used [KB]: 1151
% 1.96/1.44  % (32763)Time elapsed: 0.002 s
% 1.96/1.44  % (32763)Instructions burned: 4 (million)
% 1.96/1.44  % (32763)------------------------------
% 1.96/1.44  % (32763)------------------------------
% 1.96/1.44  % (32759)Instruction limit reached!
% 1.96/1.44  % (32759)------------------------------
% 1.96/1.44  % (32759)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.96/1.44  % (32759)Termination reason: Unknown
% 1.96/1.44  % (32759)Termination phase: Twee Goal Transformation
% 1.96/1.44  
% 1.96/1.44  % (32759)Memory used [KB]: 1279
% 1.96/1.44  % (32759)Time elapsed: 0.010 s
% 1.96/1.44  % (32759)Instructions burned: 16 (million)
% 1.96/1.44  % (32759)------------------------------
% 1.96/1.44  % (32759)------------------------------
% 1.96/1.44  % (32764)dis+1004_1:1_cha=on:cs=on:fe=off:hud=1:i=4:si=on:rtra=on_0 on DTF2THF_32630 for (2999ds/4Mi)
% 1.96/1.44  % (32764)Instruction limit reached!
% 1.96/1.44  % (32764)------------------------------
% 1.96/1.44  % (32764)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.96/1.44  % (32764)Termination reason: Unknown
% 1.96/1.44  % (32764)Termination phase: shuffling
% 1.96/1.44  
% 1.96/1.44  % (32764)Memory used [KB]: 1151
% 1.96/1.44  % (32764)Time elapsed: 0.002 s
% 1.96/1.44  % (32764)Instructions burned: 4 (million)
% 1.96/1.44  % (32764)------------------------------
% 1.96/1.44  % (32764)------------------------------
% 1.96/1.44  % (32765)lrs+1002_1:1_anc=all_dependent:au=on:cbe=off:fde=unused:ntd=on:i=18:si=on:rtra=on_0 on DTF2THF_32630 for (2999ds/18Mi)
% 1.96/1.45  % (32766)lrs+10_1:1_e2e=on:sd=1:sgt=8:ss=axioms:i=710:si=on:rtra=on_0 on DTF2THF_32630 for (2999ds/710Mi)
% 1.96/1.45  % (32765)Instruction limit reached!
% 1.96/1.45  % (32765)------------------------------
% 1.96/1.45  % (32765)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.96/1.45  % (32765)Termination reason: Unknown
% 1.96/1.45  % (32765)Termination phase: Saturation
% 1.96/1.45  
% 1.96/1.45  % (32765)Memory used [KB]: 5628
% 1.96/1.45  % (32765)Time elapsed: 0.007 s
% 1.96/1.45  % (32765)Instructions burned: 18 (million)
% 1.96/1.45  % (32765)------------------------------
% 1.96/1.45  % (32765)------------------------------
% 1.96/1.45  % (300)dis+1002_5:1_au=on:bd=off:e2e=on:fde=none:fs=off:fsr=off:sos=on:i=902:si=on:rtra=on_0 on DTF2THF_32630 for (2999ds/902Mi)
% 1.96/1.45  % (32767)lrs+1004_1:1_chr=on:prag=on:i=6:si=on:rtra=on_0 on DTF2THF_32630 for (2999ds/6Mi)
% 1.96/1.46  % (32751)First to succeed.
% 1.96/1.46  % (32767)Instruction limit reached!
% 1.96/1.46  % (32767)------------------------------
% 1.96/1.46  % (32767)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.96/1.46  % (32767)Termination reason: Unknown
% 1.96/1.46  % (32767)Termination phase: shuffling
% 1.96/1.46  
% 1.96/1.46  % (32767)Memory used [KB]: 1151
% 1.96/1.46  % (32767)Time elapsed: 0.005 s
% 1.96/1.46  % (32767)Instructions burned: 6 (million)
% 1.96/1.46  % (32767)------------------------------
% 1.96/1.46  % (32767)------------------------------
% 1.96/1.46  % (32751)Refutation found. Thanks to Tanya!
% 1.96/1.46  % SZS status Theorem for DTF2THF_32630
% 1.96/1.46  % SZS output start Proof for DTF2THF_32630
% 1.96/1.46  thf(func_def_0, type, in: $i > $i > $o).
% 1.96/1.46  thf(func_def_1, type, exu: ($i > $o) > $o).
% 1.96/1.46  thf(func_def_6, type, setadjoin: $i > $i > $i).
% 1.96/1.46  thf(func_def_8, type, powerset: $i > $i).
% 1.96/1.46  thf(func_def_10, type, setunion: $i > $i).
% 1.96/1.46  thf(func_def_19, type, descr: ($i > $o) > $i).
% 1.96/1.46  thf(func_def_21, type, dsetconstr: $i > ($i > $o) > $i).
% 1.96/1.46  thf(func_def_26, type, prop2set: $o > $i).
% 1.96/1.46  thf(func_def_36, type, nonempty: $i > $o).
% 1.96/1.46  thf(func_def_57, type, sP1: $i > $i > $o).
% 1.96/1.46  thf(func_def_58, type, sP2: $i > $o).
% 1.96/1.46  thf(func_def_59, type, sP3: $i > $i > $o).
% 1.96/1.46  thf(func_def_60, type, sP4: $i > $i > $o).
% 1.96/1.46  thf(func_def_62, type, sK6: $i > $i > $o).
% 1.96/1.46  thf(func_def_63, type, sK7: $i > $i).
% 1.96/1.46  thf(func_def_64, type, sK8: $i > $i).
% 1.96/1.46  thf(func_def_65, type, sK9: ($i > $i > $o) > $i > $i).
% 1.96/1.46  thf(func_def_66, type, sK10: ($i > $i > $o) > $i > $i).
% 1.96/1.46  thf(func_def_67, type, sK11: $i > ($i > $i > $o) > $i > $i).
% 1.96/1.46  thf(func_def_68, type, sK12: $i > $i).
% 1.96/1.46  thf(func_def_70, type, sK14: $i > $i).
% 1.96/1.46  thf(func_def_74, type, sK18: $i > $i > $i).
% 1.96/1.46  thf(func_def_75, type, sK19: $i > $i > $i).
% 1.96/1.46  thf(func_def_76, type, sK20: ($i > $o) > $i).
% 1.96/1.46  thf(func_def_77, type, sK21: $i > $o).
% 1.96/1.46  thf(func_def_78, type, sK22: $i > $i).
% 1.96/1.46  thf(func_def_84, type, sK28: $i > $o).
% 1.96/1.46  thf(func_def_88, type, sK32: $i > $o).
% 1.96/1.46  thf(func_def_93, type, sK37: $i > $i).
% 1.96/1.46  thf(func_def_101, type, sK45: $i > $o).
% 1.96/1.46  thf(func_def_102, type, sK46: ($i > $o) > $i).
% 1.96/1.46  thf(func_def_103, type, sK47: $i > $i).
% 1.96/1.46  thf(func_def_106, type, sK50: $i > $o).
% 1.96/1.46  thf(func_def_109, type, sK53: $i > $i > $i).
% 1.96/1.46  thf(func_def_110, type, sK54: $i > $i > $i).
% 1.96/1.46  thf(func_def_111, type, sK55: $i > $i > $i).
% 1.96/1.46  thf(func_def_112, type, sK56: $i > $i > $i).
% 1.96/1.46  thf(func_def_113, type, sK57: $i > $i > $i).
% 1.96/1.46  thf(func_def_114, type, sK58: $i > $i > $i > $i).
% 1.96/1.46  thf(func_def_115, type, sK59: $i > $i).
% 1.96/1.46  thf(func_def_116, type, sK60: $i > $i).
% 1.96/1.46  thf(func_def_117, type, sK61: $i > $i).
% 1.96/1.46  thf(func_def_118, type, sK62: $i > $i).
% 1.96/1.46  thf(func_def_119, type, sK63: $i > $i > $i).
% 1.96/1.46  thf(func_def_120, type, sK64: $i > $i > $i > $i).
% 1.96/1.46  thf(func_def_121, type, sK65: $i > $i > $i > $i).
% 1.96/1.46  thf(func_def_122, type, sK66: $i > $i > $i).
% 1.96/1.46  thf(func_def_123, type, sK67: $i > $i > $i).
% 1.96/1.46  thf(func_def_125, type, sK69: $i > $i).
% 1.96/1.46  thf(func_def_126, type, sK70: $i > $i).
% 1.96/1.46  thf(func_def_127, type, sK71: $i > $i).
% 1.96/1.46  thf(func_def_128, type, sK72: $i > $o).
% 1.96/1.46  thf(func_def_132, type, sK76: $i > $i).
% 1.96/1.46  thf(func_def_141, type, sK85: $i > $i > $i).
% 1.96/1.46  thf(func_def_143, type, sK87: $i > $o).
% 1.96/1.46  thf(func_def_148, type, sK92: $i > $i > $i).
% 1.96/1.46  thf(func_def_151, type, sK95: $i > $i).
% 1.96/1.46  thf(func_def_157, type, ph101: !>[X0: $tType]:(X0)).
% 1.96/1.46  thf(f1022,plain,(
% 1.96/1.46    $false),
% 1.96/1.46    inference(subsumption_resolution,[status(thm)],[f1021,f474])).
% 1.96/1.46  thf(f474,plain,(
% 1.96/1.46    ($true != (in @ sK98 @ sK97))),
% 1.96/1.46    inference(cnf_transformation,[status(thm)],[f319])).
% 1.96/1.46  thf(f319,plain,(
% 1.96/1.46    (noeltsimpempty = $true) & (dsetconstrI = $true) & (foundationAx = $true) & (omegaSAx = $true) & (wellorderingAx = $true) & (setunionAx = $true) & (setbeta = $true) & (replAx = $true) & (omegaIndAx = $true) & (nonemptyE1 = $true) & (exuE3e = $true) & (emptyinunitempty = $true) & (omega0Ax = $true) & (exuE1 = $true) & (descrp = $true) & (setadjoinE = $true) & (setadjoinIR = $true) & (emptysetimpfalse = $true) & (emptysetE = $true) & (setext = $true) & (setadjoinAx = $true) & (powersetAx = $true) & (nonemptyI1 = $true) & (setadjoinIL = $true) & (setextAx = $true) & (notinemptyset = $true) & (prop2setE = $true) & (nonemptyI = $true) & (emptysetAx = $true) & (dsetconstrER = $true) & (dsetconstrEL = $true) & (($true != (in @ sK98 @ sK97)) & (sK99 != sK98) & ($true = (in @ sK98 @ (setadjoin @ sK99 @ sK97)))) & (emptyI = $true)),
% 1.96/1.46    inference(skolemisation,[status(esa),new_symbols(skolem,[sK97,sK98,sK99])],[f138,f318])).
% 1.96/1.46  thf(f318,plain,(
% 1.96/1.46    ? [X0 : $i,X1 : $i,X2 : $i] : (($true != (in @ X1 @ X0)) & (X1 != X2) & ($true = (in @ X1 @ (setadjoin @ X2 @ X0)))) => (($true != (in @ sK98 @ sK97)) & (sK99 != sK98) & ($true = (in @ sK98 @ (setadjoin @ sK99 @ sK97))))),
% 1.96/1.46    introduced(definition,[],[choice_axiom])).
% 1.96/1.46  thf(f138,plain,(
% 1.96/1.46    (noeltsimpempty = $true) & (dsetconstrI = $true) & (foundationAx = $true) & (omegaSAx = $true) & (wellorderingAx = $true) & (setunionAx = $true) & (setbeta = $true) & (replAx = $true) & (omegaIndAx = $true) & (nonemptyE1 = $true) & (exuE3e = $true) & (emptyinunitempty = $true) & (omega0Ax = $true) & (exuE1 = $true) & (descrp = $true) & (setadjoinE = $true) & (setadjoinIR = $true) & (emptysetimpfalse = $true) & (emptysetE = $true) & (setext = $true) & (setadjoinAx = $true) & (powersetAx = $true) & (nonemptyI1 = $true) & (setadjoinIL = $true) & (setextAx = $true) & (notinemptyset = $true) & (prop2setE = $true) & (nonemptyI = $true) & (emptysetAx = $true) & (dsetconstrER = $true) & (dsetconstrEL = $true) & ? [X0 : $i,X1 : $i,X2 : $i] : (($true != (in @ X1 @ X0)) & (X1 != X2) & ($true = (in @ X1 @ (setadjoin @ X2 @ X0)))) & (emptyI = $true)),
% 1.96/1.46    inference(flattening,[status(thm)],[f137])).
% 1.96/1.46  thf(f137,plain,(
% 1.96/1.46    (((((((((((((((((((((((((((((((? [X0 : $i,X1 : $i,X2 : $i] : (((X1 != X2) & ($true != (in @ X1 @ X0))) & ($true = (in @ X1 @ (setadjoin @ X2 @ X0)))) & (setadjoinE = $true)) & (setadjoinIR = $true)) & (emptyinunitempty = $true)) & (setadjoinIL = $true)) & (nonemptyI1 = $true)) & (nonemptyI = $true)) & (nonemptyE1 = $true)) & (setbeta = $true)) & (noeltsimpempty = $true)) & (emptyI = $true)) & (setext = $true)) & (exuE3e = $true)) & (notinemptyset = $true)) & (emptysetimpfalse = $true)) & (emptysetE = $true)) & (prop2setE = $true)) & (exuE1 = $true)) & (dsetconstrER = $true)) & (dsetconstrEL = $true)) & (dsetconstrI = $true)) & (descrp = $true)) & (wellorderingAx = $true)) & (foundationAx = $true)) & (replAx = $true)) & (omegaIndAx = $true)) & (omegaSAx = $true)) & (omega0Ax = $true)) & (setunionAx = $true)) & (powersetAx = $true)) & (setadjoinAx = $true)) & (emptysetAx = $true)) & (setextAx = $true)),
% 1.96/1.46    inference(ennf_transformation,[status(thm)],[f95])).
% 1.96/1.46  thf(f95,plain,(
% 1.96/1.46    ~((setextAx = $true) => ((emptysetAx = $true) => ((setadjoinAx = $true) => ((powersetAx = $true) => ((setunionAx = $true) => ((omega0Ax = $true) => ((omegaSAx = $true) => ((omegaIndAx = $true) => ((replAx = $true) => ((foundationAx = $true) => ((wellorderingAx = $true) => ((descrp = $true) => ((dsetconstrI = $true) => ((dsetconstrEL = $true) => ((dsetconstrER = $true) => ((exuE1 = $true) => ((prop2setE = $true) => ((emptysetE = $true) => ((emptysetimpfalse = $true) => ((notinemptyset = $true) => ((exuE3e = $true) => ((setext = $true) => ((emptyI = $true) => ((noeltsimpempty = $true) => ((setbeta = $true) => ((nonemptyE1 = $true) => ((nonemptyI = $true) => ((nonemptyI1 = $true) => ((setadjoinIL = $true) => ((emptyinunitempty = $true) => ((setadjoinIR = $true) => ((setadjoinE = $true) => ! [X0 : $i,X1 : $i,X2 : $i] : (($true = (in @ X1 @ (setadjoin @ X2 @ X0))) => ((X1 = X2) | ($true = (in @ X1 @ X0))))))))))))))))))))))))))))))))))))),
% 1.96/1.46    inference(fool_elimination,[status(thm)],[f94])).
% 1.96/1.46  thf(f94,plain,(
% 1.96/1.46    ~(setextAx => (emptysetAx => (setadjoinAx => (powersetAx => (setunionAx => (omega0Ax => (omegaSAx => (omegaIndAx => (replAx => (foundationAx => (wellorderingAx => (descrp => (dsetconstrI => (dsetconstrEL => (dsetconstrER => (exuE1 => (prop2setE => (emptysetE => (emptysetimpfalse => (notinemptyset => (exuE3e => (setext => (emptyI => (noeltsimpempty => (setbeta => (nonemptyE1 => (nonemptyI => (nonemptyI1 => (setadjoinIL => (emptyinunitempty => (setadjoinIR => (setadjoinE => ! [X0 : $i,X1 : $i,X2 : $i] : ((in @ X1 @ (setadjoin @ X2 @ X0)) => ((X1 = X2) | (in @ X1 @ X0)))))))))))))))))))))))))))))))))))),
% 1.96/1.46    inference(rectify,[status(thm)],[f37])).
% 1.96/1.46  thf(f37,negated_conjecture,(
% 1.96/1.46    ~(setextAx => (emptysetAx => (setadjoinAx => (powersetAx => (setunionAx => (omega0Ax => (omegaSAx => (omegaIndAx => (replAx => (foundationAx => (wellorderingAx => (descrp => (dsetconstrI => (dsetconstrEL => (dsetconstrER => (exuE1 => (prop2setE => (emptysetE => (emptysetimpfalse => (notinemptyset => (exuE3e => (setext => (emptyI => (noeltsimpempty => (setbeta => (nonemptyE1 => (nonemptyI => (nonemptyI1 => (setadjoinIL => (emptyinunitempty => (setadjoinIR => (setadjoinE => ! [X3 : $i,X2 : $i,X1 : $i] : ((in @ X2 @ (setadjoin @ X1 @ X3)) => ((X1 = X2) | (in @ X2 @ X3)))))))))))))))))))))))))))))))))))),
% 1.96/1.46    inference(negated_conjecture,[status(cth)],[f36])).
% 1.96/1.46  thf(f36,conjecture,(
% 1.96/1.46    setextAx => (emptysetAx => (setadjoinAx => (powersetAx => (setunionAx => (omega0Ax => (omegaSAx => (omegaIndAx => (replAx => (foundationAx => (wellorderingAx => (descrp => (dsetconstrI => (dsetconstrEL => (dsetconstrER => (exuE1 => (prop2setE => (emptysetE => (emptysetimpfalse => (notinemptyset => (exuE3e => (setext => (emptyI => (noeltsimpempty => (setbeta => (nonemptyE1 => (nonemptyI => (nonemptyI1 => (setadjoinIL => (emptyinunitempty => (setadjoinIR => (setadjoinE => ! [X3 : $i,X2 : $i,X1 : $i] : ((in @ X2 @ (setadjoin @ X1 @ X3)) => ((X1 = X2) | (in @ X2 @ X3))))))))))))))))))))))))))))))))))),
% 1.96/1.46    file('/export/starexec/sandbox2/tmp/tmp.Kc4guPEzhN/DTF2THF_32630.p',setadjoinOr)).
% 1.96/1.46  thf(f1021,plain,(
% 1.96/1.46    ($true = (in @ sK98 @ sK97))),
% 1.96/1.46    inference(subsumption_resolution,[status(thm)],[f995,f473])).
% 1.96/1.46  thf(f473,plain,(
% 1.96/1.46    (sK99 != sK98)),
% 1.96/1.46    inference(cnf_transformation,[status(thm)],[f319])).
% 1.96/1.46  thf(f995,plain,(
% 1.96/1.46    (sK99 = sK98) | ($true = (in @ sK98 @ sK97))),
% 1.96/1.46    inference(trivial_inequality_removal,[status(thm)],[f990])).
% 1.96/1.46  thf(f990,plain,(
% 1.96/1.46    (sK99 = sK98) | ($true = (in @ sK98 @ sK97)) | ($true != $true)),
% 1.96/1.46    inference(superposition,[status(thm)],[f676,f472])).
% 1.96/1.46  thf(f472,plain,(
% 1.96/1.46    ($true = (in @ sK98 @ (setadjoin @ sK99 @ sK97)))),
% 1.96/1.46    inference(cnf_transformation,[status(thm)],[f319])).
% 1.96/1.46  thf(f676,plain,(
% 1.96/1.46    ( ! [X2 : $i,X0 : $i,X1 : $i] : (((in @ X0 @ (setadjoin @ X1 @ X2)) != $true) | ($true = (in @ X0 @ X2)) | (X0 = X1)) )),
% 1.96/1.46    inference(trivial_inequality_removal,[status(thm)],[f530])).
% 1.96/1.46  thf(f530,plain,(
% 1.96/1.46    ( ! [X2 : $i,X0 : $i,X1 : $i] : (((in @ X0 @ (setadjoin @ X1 @ X2)) != $true) | (X0 = X1) | ($true != $true) | ($true = (in @ X0 @ X2))) )),
% 1.96/1.46    inference(definition_unfolding,[status(thm)],[f355,f485])).
% 1.96/1.46  thf(f485,plain,(
% 1.96/1.46    (setadjoinAx = $true)),
% 1.96/1.46    inference(cnf_transformation,[status(thm)],[f319])).
% 1.96/1.46  thf(f355,plain,(
% 1.96/1.46    ( ! [X2 : $i,X0 : $i,X1 : $i] : (($true = (in @ X0 @ X2)) | (X0 = X1) | ((in @ X0 @ (setadjoin @ X1 @ X2)) != $true) | (setadjoinAx != $true)) )),
% 1.96/1.46    inference(cnf_transformation,[status(thm)],[f190])).
% 1.96/1.46  thf(f190,plain,(
% 1.96/1.46    (! [X0 : $i,X1 : $i,X2 : $i] : ((((in @ X0 @ (setadjoin @ X1 @ X2)) = $true) | (($true != (in @ X0 @ X2)) & (X0 != X1))) & (($true = (in @ X0 @ X2)) | (X0 = X1) | ((in @ X0 @ (setadjoin @ X1 @ X2)) != $true))) | (setadjoinAx != $true)) & ((setadjoinAx = $true) | (((($true != (in @ sK25 @ sK27)) & (sK25 != sK26)) | ($true != (in @ sK25 @ (setadjoin @ sK26 @ sK27)))) & (($true = (in @ sK25 @ sK27)) | (sK25 = sK26) | ($true = (in @ sK25 @ (setadjoin @ sK26 @ sK27))))))),
% 1.96/1.46    inference(skolemisation,[status(esa),new_symbols(skolem,[sK25,sK26,sK27])],[f188,f189])).
% 1.96/1.46  thf(f189,plain,(
% 1.96/1.46    ? [X3 : $i,X4 : $i,X5 : $i] : (((((in @ X3 @ X5) != $true) & (X3 != X4)) | ($true != (in @ X3 @ (setadjoin @ X4 @ X5)))) & (((in @ X3 @ X5) = $true) | (X3 = X4) | ($true = (in @ X3 @ (setadjoin @ X4 @ X5))))) => (((($true != (in @ sK25 @ sK27)) & (sK25 != sK26)) | ($true != (in @ sK25 @ (setadjoin @ sK26 @ sK27)))) & (($true = (in @ sK25 @ sK27)) | (sK25 = sK26) | ($true = (in @ sK25 @ (setadjoin @ sK26 @ sK27)))))),
% 1.96/1.46    introduced(definition,[],[choice_axiom])).
% 1.96/1.46  thf(f188,plain,(
% 1.96/1.46    (! [X0 : $i,X1 : $i,X2 : $i] : ((((in @ X0 @ (setadjoin @ X1 @ X2)) = $true) | (($true != (in @ X0 @ X2)) & (X0 != X1))) & (($true = (in @ X0 @ X2)) | (X0 = X1) | ((in @ X0 @ (setadjoin @ X1 @ X2)) != $true))) | (setadjoinAx != $true)) & ((setadjoinAx = $true) | ? [X3 : $i,X4 : $i,X5 : $i] : (((((in @ X3 @ X5) != $true) & (X3 != X4)) | ($true != (in @ X3 @ (setadjoin @ X4 @ X5)))) & (((in @ X3 @ X5) = $true) | (X3 = X4) | ($true = (in @ X3 @ (setadjoin @ X4 @ X5))))))),
% 1.96/1.46    inference(rectify,[status(thm)],[f187])).
% 1.96/1.46  thf(f187,plain,(
% 1.96/1.46    (! [X0 : $i,X1 : $i,X2 : $i] : ((((in @ X0 @ (setadjoin @ X1 @ X2)) = $true) | (($true != (in @ X0 @ X2)) & (X0 != X1))) & (($true = (in @ X0 @ X2)) | (X0 = X1) | ((in @ X0 @ (setadjoin @ X1 @ X2)) != $true))) | (setadjoinAx != $true)) & ((setadjoinAx = $true) | ? [X0 : $i,X1 : $i,X2 : $i] : (((($true != (in @ X0 @ X2)) & (X0 != X1)) | ((in @ X0 @ (setadjoin @ X1 @ X2)) != $true)) & (($true = (in @ X0 @ X2)) | (X0 = X1) | ((in @ X0 @ (setadjoin @ X1 @ X2)) = $true))))),
% 1.96/1.46    inference(flattening,[status(thm)],[f186])).
% 1.96/1.46  thf(f186,plain,(
% 1.96/1.46    (! [X0 : $i,X1 : $i,X2 : $i] : ((((in @ X0 @ (setadjoin @ X1 @ X2)) = $true) | (($true != (in @ X0 @ X2)) & (X0 != X1))) & ((($true = (in @ X0 @ X2)) | (X0 = X1)) | ((in @ X0 @ (setadjoin @ X1 @ X2)) != $true))) | (setadjoinAx != $true)) & ((setadjoinAx = $true) | ? [X0 : $i,X1 : $i,X2 : $i] : (((($true != (in @ X0 @ X2)) & (X0 != X1)) | ((in @ X0 @ (setadjoin @ X1 @ X2)) != $true)) & ((($true = (in @ X0 @ X2)) | (X0 = X1)) | ((in @ X0 @ (setadjoin @ X1 @ X2)) = $true))))),
% 1.96/1.46    inference(nnf_transformation,[status(thm)],[f73])).
% 1.96/1.46  thf(f73,plain,(
% 1.96/1.46    ! [X0 : $i,X1 : $i,X2 : $i] : (((in @ X0 @ (setadjoin @ X1 @ X2)) = $true) <=> (($true = (in @ X0 @ X2)) | (X0 = X1))) <=> (setadjoinAx = $true)),
% 1.96/1.46    inference(fool_elimination,[status(thm)],[f72])).
% 1.96/1.46  thf(f72,plain,(
% 1.96/1.46    (! [X0 : $i,X1 : $i,X2 : $i] : ((in @ X0 @ (setadjoin @ X1 @ X2)) <=> ((X0 = X1) | (in @ X0 @ X2))) = setadjoinAx)),
% 1.96/1.46    inference(rectify,[status(thm)],[f4])).
% 1.96/1.46  thf(f4,axiom,(
% 1.96/1.46    (! [X2 : $i,X1 : $i,X3 : $i] : ((in @ X2 @ (setadjoin @ X1 @ X3)) <=> ((X1 = X2) | (in @ X2 @ X3))) = setadjoinAx)),
% 1.96/1.46    file('/export/starexec/sandbox2/tmp/tmp.Kc4guPEzhN/DTF2THF_32630.p',setadjoinAx)).
% 1.96/1.46  % SZS output end Proof for DTF2THF_32630
% 1.96/1.46  % (32751)------------------------------
% 1.96/1.46  % (32751)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.96/1.46  % (32751)Termination reason: Refutation
% 1.96/1.46  
% 1.96/1.46  % (32751)Memory used [KB]: 6524
% 1.96/1.46  % (32751)Time elapsed: 0.063 s
% 1.96/1.46  % (32751)Instructions burned: 155 (million)
% 1.96/1.46  % (32751)------------------------------
% 1.96/1.46  % (32751)------------------------------
% 1.96/1.46  % (32745)Success in time 0.072 s
%------------------------------------------------------------------------------