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DT2H2X---1.9.5.THM-Ref.s

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%------------------------------------------------------------------------------
% File     : DT2H2X---1.9.5
% Problem  : SEU527^1 : TPTP v9.2.1. Released v3.7.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : /export/starexec/sandbox/solver/bin/run_DT2H2X /export/starexec/sandbox/benchmark/theBenchmark.p 300

% Computer : n009.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 09:35:05 AM UTC 2026

% Result   : Theorem 2.13s 1.51s
% Output   : Refutation 2.13s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   13
%            Number of leaves      :    8
% Syntax   : Number of formulae    :   48 (  11 unt;   0 typ;   2 def)
%            Number of atoms       : 1102 ( 314 equ;   0 cnn)
%            Maximal formula atoms :   46 (  22 avg)
%            Number of connectives :  715 (  76   ~;  69   |; 161   &; 222   @)
%                                         (   8 <=>; 179  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   51 (  10 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :  121 ( 118 usr;  54 con; 0-3 aty)
%            Number of variables   :   61 (   0   ^;  40   !;  21   ?;  61   :)

% 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_68,type,
    sP1: $i > $i > $o ).

thf(func_def_69,type,
    sP2: $i > $o ).

thf(func_def_70,type,
    sP3: $i > $i > $o ).

thf(func_def_71,type,
    sP4: $i > $i > $o ).

thf(func_def_72,type,
    sK5: $i > $i > $i ).

thf(func_def_75,type,
    sK8: $i > $o ).

thf(func_def_76,type,
    sK9: ( $i > $o ) > $i ).

thf(func_def_81,type,
    sK14: $i > $o ).

thf(func_def_82,type,
    sK15: $i > $i ).

thf(func_def_83,type,
    sK16: ( $i > $o ) > $i ).

thf(func_def_84,type,
    sK17: $i > $i ).

thf(func_def_90,type,
    sK23: $i > $i > $i ).

thf(func_def_93,type,
    sK26: $i > $i > $i ).

thf(func_def_94,type,
    sK27: $i > $i > $i ).

thf(func_def_100,type,
    sK33: $i > $i ).

thf(func_def_102,type,
    sK35: $i > $i ).

thf(func_def_107,type,
    sK40: $i > $i > $i ).

thf(func_def_108,type,
    sK41: $i > $i ).

thf(func_def_119,type,
    sK52: $i > $o ).

thf(func_def_121,type,
    sK54: $i > $i ).

thf(func_def_124,type,
    sK57: $i > $i ).

thf(func_def_128,type,
    sK61: $i > $i > $o ).

thf(func_def_129,type,
    sK62: $i > $i ).

thf(func_def_130,type,
    sK63: $i > $i ).

thf(func_def_131,type,
    sK64: ( $i > $i > $o ) > $i > $i ).

thf(func_def_132,type,
    sK65: ( $i > $i > $o ) > $i > $i ).

thf(func_def_133,type,
    sK66: $i > ( $i > $i > $o ) > $i > $i ).

thf(func_def_137,type,
    sK70: $i > $o ).

thf(func_def_144,type,
    sK77: $o > $i > $i > $i ).

thf(func_def_148,type,
    sK81: $i > $i > $i ).

thf(func_def_149,type,
    sK82: $i > $i > $i ).

thf(func_def_150,type,
    sK83: $i > $i > $i ).

thf(func_def_151,type,
    sK84: $i > $i > $i ).

thf(func_def_152,type,
    sK85: $i > $i > $i > $i ).

thf(func_def_153,type,
    sK86: $i > $i ).

thf(func_def_154,type,
    sK87: $i > $i ).

thf(func_def_155,type,
    sK88: $i > $i ).

thf(func_def_156,type,
    sK89: $i > $i ).

thf(func_def_157,type,
    sK90: $i > $i > $i ).

thf(func_def_158,type,
    sK91: $i > $i > $i > $i ).

thf(func_def_159,type,
    sK92: $i > $i > $i > $i ).

thf(func_def_160,type,
    sK93: $i > $i > $i ).

thf(func_def_161,type,
    sK94: $i > $i > $i ).

thf(func_def_163,type,
    sK96: $i > $i ).

thf(func_def_164,type,
    sK97: $i > $i ).

thf(func_def_165,type,
    sK98: $i > $i ).

thf(func_def_166,type,
    sK99: $i > $i > $i ).

thf(func_def_168,type,
    sK101: ( $i > $o ) > $i ).

thf(func_def_169,type,
    sK102: $i > $o ).

thf(func_def_170,type,
    sK103: $i > $i ).

thf(func_def_172,type,
    sK105: $i > $i > $i ).

thf(func_def_178,type,
    sK111: $i > $o ).

thf(func_def_183,type,
    sK116: $i > $o ).

thf(func_def_185,type,
    sK118: $i > $i ).

thf(func_def_191,type,
    sK124: $i > $o ).

thf(func_def_194,type,
    sK127: $i > $o ).

thf(func_def_198,type,
    ph131: 
      !>[X0: $tType] : X0 ).

thf(f759,plain,
    $false,
    inference(avatar_sat_refutation,[status(thm)],[f726,f754,f758]) ).

thf(f758,plain,
    ~ spl130_1,
    inference(avatar_contradiction_clause,[status(thm)],[f757]) ).

thf(f757,plain,
    ( $false
    | ~ spl130_1 ),
    inference(trivial_inequality_removal,[status(thm)],[f756]) ).

thf(f756,plain,
    ( ( sK11 != sK11 )
    | ~ spl130_1 ),
    inference(superposition,[status(thm)],[f458,f718]) ).

thf(f718,plain,
    ( ( sK12 = sK11 )
    | ~ spl130_1 ),
    inference(avatar_component_clause,[status(thm)],[f716]) ).

thf(f716,definition,
    ( spl130_1
  <=> ( sK12 = sK11 ) ),
    introduced(definition,[new_symbols(naming,[spl130_1])],[avatar_definition]) ).

thf(f458,plain,
    sK12 != sK11,
    inference(cnf_transformation,[status(thm)],[f216]) ).

thf(f216,plain,
    ( ( powersetI = $true )
    & ( exuE3e = $true )
    & ( emptyinunitempty = $true )
    & ( setextAx = $true )
    & ( dsetconstrI = $true )
    & ( setadjoinE = $true )
    & ( foundationAx = $true )
    & ( prop2setE = $true )
    & ( nonemptyI1 = $true )
    & ( dsetconstrER = $true )
    & ( emptysetE = $true )
    & ( setoftrueEq = $true )
    & ( subPowSU = $true )
    & ( emptyinPowerset = $true )
    & ( setunionAx = $true )
    & ( noeltsimpempty = $true )
    & ( emptyI = $true )
    & ( setext = $true )
    & ( wellorderingAx = $true )
    & ( notinemptyset = $true )
    & ( replAx = $true )
    & ( emptysetimpfalse = $true )
    & ( setadjoinOr = $true )
    & ( nonemptyI = $true )
    & ( emptysetAx = $true )
    & ( sK12 != sK11 )
    & ( ( in @ sK12 @ ( setadjoin @ sK11 @ emptyset ) )
      = $true )
    & ( omegaIndAx = $true )
    & ( descrp = $true )
    & ( omega0Ax = $true )
    & ( exuE1 = $true )
    & ( dsetconstrEL = $true )
    & ( powersetAx = $true )
    & ( setadjoinAx = $true )
    & ( setunionE = $true )
    & ( nonemptyE1 = $true )
    & ( nonemptyImpWitness = $true )
    & ( exuE2 = $true )
    & ( setadjoinIL = $true )
    & ( emptyInPowerset = $true )
    & ( powersetE = $true )
    & ( setbeta = $true )
    & ( omegaSAx = $true )
    & ( setadjoinIR = $true )
    & ( setunionI = $true ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK11,sK12])],[f185,f215]) ).

thf(f215,plain,
    ( ? [X0: $i,X1: $i] :
        ( ( X0 != X1 )
        & ( ( in @ X1 @ ( setadjoin @ X0 @ emptyset ) )
          = $true ) )
   => ( ( sK12 != sK11 )
      & ( ( in @ sK12 @ ( setadjoin @ sK11 @ emptyset ) )
        = $true ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f185,plain,
    ( ( powersetI = $true )
    & ( exuE3e = $true )
    & ( emptyinunitempty = $true )
    & ( setextAx = $true )
    & ( dsetconstrI = $true )
    & ( setadjoinE = $true )
    & ( foundationAx = $true )
    & ( prop2setE = $true )
    & ( nonemptyI1 = $true )
    & ( dsetconstrER = $true )
    & ( emptysetE = $true )
    & ( setoftrueEq = $true )
    & ( subPowSU = $true )
    & ( emptyinPowerset = $true )
    & ( setunionAx = $true )
    & ( noeltsimpempty = $true )
    & ( emptyI = $true )
    & ( setext = $true )
    & ( wellorderingAx = $true )
    & ( notinemptyset = $true )
    & ( replAx = $true )
    & ( emptysetimpfalse = $true )
    & ( setadjoinOr = $true )
    & ( nonemptyI = $true )
    & ( emptysetAx = $true )
    & ? [X0: $i,X1: $i] :
        ( ( X0 != X1 )
        & ( ( in @ X1 @ ( setadjoin @ X0 @ emptyset ) )
          = $true ) )
    & ( omegaIndAx = $true )
    & ( descrp = $true )
    & ( omega0Ax = $true )
    & ( exuE1 = $true )
    & ( dsetconstrEL = $true )
    & ( powersetAx = $true )
    & ( setadjoinAx = $true )
    & ( setunionE = $true )
    & ( nonemptyE1 = $true )
    & ( nonemptyImpWitness = $true )
    & ( exuE2 = $true )
    & ( setadjoinIL = $true )
    & ( emptyInPowerset = $true )
    & ( powersetE = $true )
    & ( setbeta = $true )
    & ( omegaSAx = $true )
    & ( setadjoinIR = $true )
    & ( setunionI = $true ) ),
    inference(flattening,[status(thm)],[f184]) ).

thf(f184,plain,
    ( ? [X0: $i,X1: $i] :
        ( ( X0 != X1 )
        & ( ( in @ X1 @ ( setadjoin @ X0 @ emptyset ) )
          = $true ) )
    & ( nonemptyImpWitness = $true )
    & ( exuE2 = $true )
    & ( subPowSU = $true )
    & ( setunionE = $true )
    & ( setunionI = $true )
    & ( powersetE = $true )
    & ( emptyInPowerset = $true )
    & ( emptyinPowerset = $true )
    & ( powersetI = $true )
    & ( setoftrueEq = $true )
    & ( setadjoinOr = $true )
    & ( 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)],[f124]) ).

thf(f124,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 )
                                                                   => ( ( setadjoinOr = $true )
                                                                     => ( ( setoftrueEq = $true )
                                                                       => ( ( powersetI = $true )
                                                                         => ( ( emptyinPowerset = $true )
                                                                           => ( ( emptyInPowerset = $true )
                                                                             => ( ( powersetE = $true )
                                                                               => ( ( setunionI = $true )
                                                                                 => ( ( setunionE = $true )
                                                                                   => ( ( subPowSU = $true )
                                                                                     => ( ( exuE2 = $true )
                                                                                       => ( ( nonemptyImpWitness = $true )
                                                                                         => ! [X0: $i,X1: $i] :
                                                                                              ( ( ( in @ X1 @ ( setadjoin @ X0 @ emptyset ) )
                                                                                                = $true )
                                                                                             => ( X0 = X1 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    inference(fool_elimination,[status(thm)],[f123]) ).

thf(f123,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
                                                                   => ( setadjoinOr
                                                                     => ( setoftrueEq
                                                                       => ( powersetI
                                                                         => ( emptyinPowerset
                                                                           => ( emptyInPowerset
                                                                             => ( powersetE
                                                                               => ( setunionI
                                                                                 => ( setunionE
                                                                                   => ( subPowSU
                                                                                     => ( exuE2
                                                                                       => ( nonemptyImpWitness
                                                                                         => ! [X0: $i,X1: $i] :
                                                                                              ( ( in @ X1 @ ( setadjoin @ X0 @ emptyset ) )
                                                                                             => ( X0 = X1 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    inference(rectify,[status(thm)],[f48]) ).

thf(f48,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
                                                                   => ( setadjoinOr
                                                                     => ( setoftrueEq
                                                                       => ( powersetI
                                                                         => ( emptyinPowerset
                                                                           => ( emptyInPowerset
                                                                             => ( powersetE
                                                                               => ( setunionI
                                                                                 => ( setunionE
                                                                                   => ( subPowSU
                                                                                     => ( exuE2
                                                                                       => ( nonemptyImpWitness
                                                                                         => ! [X2: $i,X1: $i] :
                                                                                              ( ( in @ X1 @ ( setadjoin @ X2 @ emptyset ) )
                                                                                             => ( X1 = X2 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    inference(negated_conjecture,[status(cth)],[f47]) ).

thf(f47,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
                                                                 => ( setadjoinOr
                                                                   => ( setoftrueEq
                                                                     => ( powersetI
                                                                       => ( emptyinPowerset
                                                                         => ( emptyInPowerset
                                                                           => ( powersetE
                                                                             => ( setunionI
                                                                               => ( setunionE
                                                                                 => ( subPowSU
                                                                                   => ( exuE2
                                                                                     => ( nonemptyImpWitness
                                                                                       => ! [X2: $i,X1: $i] :
                                                                                            ( ( in @ X1 @ ( setadjoin @ X2 @ emptyset ) )
                                                                                           => ( X1 = X2 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    file('/export/starexec/sandbox/tmp/tmp.p9jyL4yqSG/DTF2THF_5545.p',uniqinunit) ).

thf(f754,plain,
    ~ spl130_2,
    inference(avatar_contradiction_clause,[status(thm)],[f753]) ).

thf(f753,plain,
    ( $false
    | ~ spl130_2 ),
    inference(trivial_inequality_removal,[status(thm)],[f752]) ).

thf(f752,plain,
    ( ( $true != $true )
    | ~ spl130_2 ),
    inference(superposition,[status(thm)],[f740,f464]) ).

thf(f464,plain,
    notinemptyset = $true,
    inference(cnf_transformation,[status(thm)],[f216]) ).

thf(f740,plain,
    ( ( notinemptyset != $true )
    | ~ spl130_2 ),
    inference(trivial_inequality_removal,[status(thm)],[f737]) ).

thf(f737,plain,
    ( ( notinemptyset != $true )
    | ( $true != $true )
    | ~ spl130_2 ),
    inference(superposition,[status(thm)],[f485,f722]) ).

thf(f722,plain,
    ( ( ( in @ sK12 @ emptyset )
      = $true )
    | ~ spl130_2 ),
    inference(avatar_component_clause,[status(thm)],[f720]) ).

thf(f720,definition,
    ( spl130_2
  <=> ( ( in @ sK12 @ emptyset )
      = $true ) ),
    introduced(definition,[new_symbols(naming,[spl130_2])],[avatar_definition]) ).

thf(f485,plain,
    ! [X0: $i] :
      ( ( ( in @ X0 @ emptyset )
       != $true )
      | ( notinemptyset != $true ) ),
    inference(cnf_transformation,[status(thm)],[f220]) ).

thf(f220,plain,
    ( ( ! [X0: $i] :
          ( ( in @ X0 @ emptyset )
         != $true )
      | ( notinemptyset != $true ) )
    & ( ( notinemptyset = $true )
      | ( ( in @ sK13 @ emptyset )
        = $true ) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK13])],[f218,f219]) ).

thf(f219,plain,
    ( ? [X1: $i] :
        ( ( in @ X1 @ emptyset )
        = $true )
   => ( ( in @ sK13 @ emptyset )
      = $true ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f218,plain,
    ( ( ! [X0: $i] :
          ( ( in @ X0 @ emptyset )
         != $true )
      | ( notinemptyset != $true ) )
    & ( ( notinemptyset = $true )
      | ? [X1: $i] :
          ( ( in @ X1 @ emptyset )
          = $true ) ) ),
    inference(rectify,[status(thm)],[f217]) ).

thf(f217,plain,
    ( ( ! [X0: $i] :
          ( ( in @ X0 @ emptyset )
         != $true )
      | ( notinemptyset != $true ) )
    & ( ( notinemptyset = $true )
      | ? [X0: $i] :
          ( ( in @ X0 @ emptyset )
          = $true ) ) ),
    inference(nnf_transformation,[status(thm)],[f144]) ).

thf(f144,plain,
    ( ! [X0: $i] :
        ( ( in @ X0 @ emptyset )
       != $true )
  <=> ( notinemptyset = $true ) ),
    inference(flattening,[status(thm)],[f100]) ).

thf(f100,plain,
    ( ! [X0: $i] :
        ( ( in @ X0 @ emptyset )
       != $true )
  <=> ( notinemptyset = $true ) ),
    inference(fool_elimination,[status(thm)],[f99]) ).

thf(f99,plain,
    ! [X0: $i] :
      ( ( ~ ( in @ X0 @ emptyset ) )
      = notinemptyset ),
    inference(rectify,[status(thm)],[f22]) ).

thf(f22,axiom,
    ! [X1: $i] :
      ( ( ~ ( in @ X1 @ emptyset ) )
      = notinemptyset ),
    file('/export/starexec/sandbox/tmp/tmp.p9jyL4yqSG/DTF2THF_5545.p',notinemptyset) ).

thf(f726,plain,
    ( spl130_1
    | spl130_2 ),
    inference(avatar_split_clause,[status(thm)],[f725,f720,f716]) ).

thf(f725,plain,
    ( ( ( in @ sK12 @ emptyset )
      = $true )
    | ( sK12 = sK11 ) ),
    inference(trivial_inequality_removal,[status(thm)],[f724]) ).

thf(f724,plain,
    ( ( $true != $true )
    | ( ( in @ sK12 @ emptyset )
      = $true )
    | ( sK12 = sK11 ) ),
    inference(forward_demodulation,[status(thm)],[f711,f450]) ).

thf(f450,plain,
    setadjoinAx = $true,
    inference(cnf_transformation,[status(thm)],[f216]) ).

thf(f711,plain,
    ( ( setadjoinAx != $true )
    | ( sK12 = sK11 )
    | ( ( in @ sK12 @ emptyset )
      = $true ) ),
    inference(trivial_inequality_removal,[status(thm)],[f706]) ).

thf(f706,plain,
    ( ( $true != $true )
    | ( sK12 = sK11 )
    | ( setadjoinAx != $true )
    | ( ( in @ sK12 @ emptyset )
      = $true ) ),
    inference(superposition,[status(thm)],[f659,f457]) ).

thf(f457,plain,
    ( ( in @ sK12 @ ( setadjoin @ sK11 @ emptyset ) )
    = $true ),
    inference(cnf_transformation,[status(thm)],[f216]) ).

thf(f659,plain,
    ! [X2: $i,X0: $i,X1: $i] :
      ( ( ( in @ X1 @ ( setadjoin @ X2 @ X0 ) )
       != $true )
      | ( ( in @ X1 @ X0 )
        = $true )
      | ( X1 = X2 )
      | ( setadjoinAx != $true ) ),
    inference(cnf_transformation,[status(thm)],[f407]) ).

thf(f407,plain,
    ( ( ! [X0: $i,X1: $i,X2: $i] :
          ( ( ( ( in @ X1 @ ( setadjoin @ X2 @ X0 ) )
              = $true )
            | ( ( X1 != X2 )
              & ( ( in @ X1 @ X0 )
               != $true ) ) )
          & ( ( X1 = X2 )
            | ( ( in @ X1 @ X0 )
              = $true )
            | ( ( in @ X1 @ ( setadjoin @ X2 @ X0 ) )
             != $true ) ) )
      | ( setadjoinAx != $true ) )
    & ( ( setadjoinAx = $true )
      | ( ( ( ( sK120 != sK121 )
            & ( ( in @ sK120 @ sK119 )
             != $true ) )
          | ( ( in @ sK120 @ ( setadjoin @ sK121 @ sK119 ) )
           != $true ) )
        & ( ( sK120 = sK121 )
          | ( ( in @ sK120 @ sK119 )
            = $true )
          | ( ( in @ sK120 @ ( setadjoin @ sK121 @ sK119 ) )
            = $true ) ) ) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK119,sK120,sK121])],[f405,f406]) ).

thf(f406,plain,
    ( ? [X3: $i,X4: $i,X5: $i] :
        ( ( ( ( X4 != X5 )
            & ( ( in @ X4 @ X3 )
             != $true ) )
          | ( ( in @ X4 @ ( setadjoin @ X5 @ X3 ) )
           != $true ) )
        & ( ( X4 = X5 )
          | ( ( in @ X4 @ X3 )
            = $true )
          | ( ( in @ X4 @ ( setadjoin @ X5 @ X3 ) )
            = $true ) ) )
   => ( ( ( ( sK120 != sK121 )
          & ( ( in @ sK120 @ sK119 )
           != $true ) )
        | ( ( in @ sK120 @ ( setadjoin @ sK121 @ sK119 ) )
         != $true ) )
      & ( ( sK120 = sK121 )
        | ( ( in @ sK120 @ sK119 )
          = $true )
        | ( ( in @ sK120 @ ( setadjoin @ sK121 @ sK119 ) )
          = $true ) ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f405,plain,
    ( ( ! [X0: $i,X1: $i,X2: $i] :
          ( ( ( ( in @ X1 @ ( setadjoin @ X2 @ X0 ) )
              = $true )
            | ( ( X1 != X2 )
              & ( ( in @ X1 @ X0 )
               != $true ) ) )
          & ( ( X1 = X2 )
            | ( ( in @ X1 @ X0 )
              = $true )
            | ( ( in @ X1 @ ( setadjoin @ X2 @ X0 ) )
             != $true ) ) )
      | ( setadjoinAx != $true ) )
    & ( ( setadjoinAx = $true )
      | ? [X3: $i,X4: $i,X5: $i] :
          ( ( ( ( X4 != X5 )
              & ( ( in @ X4 @ X3 )
               != $true ) )
            | ( ( in @ X4 @ ( setadjoin @ X5 @ X3 ) )
             != $true ) )
          & ( ( X4 = X5 )
            | ( ( in @ X4 @ X3 )
              = $true )
            | ( ( in @ X4 @ ( setadjoin @ X5 @ X3 ) )
              = $true ) ) ) ) ),
    inference(rectify,[status(thm)],[f404]) ).

thf(f404,plain,
    ( ( ! [X0: $i,X1: $i,X2: $i] :
          ( ( ( ( in @ X1 @ ( setadjoin @ X2 @ X0 ) )
              = $true )
            | ( ( X1 != X2 )
              & ( ( in @ X1 @ X0 )
               != $true ) ) )
          & ( ( X1 = X2 )
            | ( ( in @ X1 @ X0 )
              = $true )
            | ( ( in @ X1 @ ( setadjoin @ X2 @ X0 ) )
             != $true ) ) )
      | ( setadjoinAx != $true ) )
    & ( ( setadjoinAx = $true )
      | ? [X0: $i,X1: $i,X2: $i] :
          ( ( ( ( X1 != X2 )
              & ( ( in @ X1 @ X0 )
               != $true ) )
            | ( ( in @ X1 @ ( setadjoin @ X2 @ X0 ) )
             != $true ) )
          & ( ( X1 = X2 )
            | ( ( in @ X1 @ X0 )
              = $true )
            | ( ( in @ X1 @ ( setadjoin @ X2 @ X0 ) )
              = $true ) ) ) ) ),
    inference(flattening,[status(thm)],[f403]) ).

thf(f403,plain,
    ( ( ! [X0: $i,X1: $i,X2: $i] :
          ( ( ( ( in @ X1 @ ( setadjoin @ X2 @ X0 ) )
              = $true )
            | ( ( X1 != X2 )
              & ( ( in @ X1 @ X0 )
               != $true ) ) )
          & ( ( X1 = X2 )
            | ( ( in @ X1 @ X0 )
              = $true )
            | ( ( in @ X1 @ ( setadjoin @ X2 @ X0 ) )
             != $true ) ) )
      | ( setadjoinAx != $true ) )
    & ( ( setadjoinAx = $true )
      | ? [X0: $i,X1: $i,X2: $i] :
          ( ( ( ( X1 != X2 )
              & ( ( in @ X1 @ X0 )
               != $true ) )
            | ( ( in @ X1 @ ( setadjoin @ X2 @ X0 ) )
             != $true ) )
          & ( ( X1 = X2 )
            | ( ( in @ X1 @ X0 )
              = $true )
            | ( ( in @ X1 @ ( setadjoin @ X2 @ X0 ) )
              = $true ) ) ) ) ),
    inference(nnf_transformation,[status(thm)],[f64]) ).

thf(f64,plain,
    ( ! [X0: $i,X1: $i,X2: $i] :
        ( ( ( in @ X1 @ ( setadjoin @ X2 @ X0 ) )
          = $true )
      <=> ( ( X1 = X2 )
          | ( ( in @ X1 @ X0 )
            = $true ) ) )
  <=> ( setadjoinAx = $true ) ),
    inference(fool_elimination,[status(thm)],[f63]) ).

thf(f63,plain,
    ! [X0: $i,X1: $i,X2: $i] :
      ( ( ( in @ X1 @ ( setadjoin @ X2 @ X0 ) )
      <=> ( ( in @ X1 @ X0 )
          | ( X1 = X2 ) ) )
      = setadjoinAx ),
    inference(rectify,[status(thm)],[f4]) ).

thf(f4,axiom,
    ! [X3: $i,X2: $i,X1: $i] :
      ( ( ( in @ X2 @ ( setadjoin @ X1 @ X3 ) )
      <=> ( ( in @ X2 @ X3 )
          | ( X1 = X2 ) ) )
      = setadjoinAx ),
    file('/export/starexec/sandbox/tmp/tmp.p9jyL4yqSG/DTF2THF_5545.p',setadjoinAx) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem  : SEU527^1 : TPTP v9.2.1. Released v3.7.0.
% 0.12/0.13  % Command  : /export/starexec/sandbox/solver/bin/run_DT2H2X /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 0.17/0.34  % Computer : n009.cluster.edu
% 0.17/0.34  % Model    : x86_64 x86_64
% 0.17/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.17/0.34  % Memory   : 8042.1875MB
% 0.17/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.17/0.34  % CPULimit : 300
% 0.17/0.34  % WCLimit  : 300
% 0.17/0.34  % DateTime : Tue Feb 24 12:25:40 EST 2026
% 0.17/0.34  % CPUTime  : 
% 0.17/0.34  Running /export/starexec/sandbox/solver/bin/run_DT2H2X /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 0.32/0.46  ---- Original DTF file ---
% 0.32/0.46  thf(spec,logic,$$dhol).
% 0.32/0.46  %------------------------------------------------------------------------------
% 0.32/0.46  % File     : SEU527^1 : TPTP v9.2.1. Released v3.7.0.
% 0.32/0.46  % Domain   : Set Theory
% 0.32/0.46  % Problem  : Preliminary Notions - Equality Laws
% 0.32/0.46  % Version  : Especial.
% 0.32/0.46  % English  : (! x:i.! y:i.in x (setadjoin y emptyset) -> x = y)
% 0.32/0.46  
% 0.32/0.46  % Refs     : [Bro08] Brown (2008), Email to G. Sutcliffe
% 0.32/0.46  % Source   : [Bro08]
% 0.32/0.46  % Names    : ZFC029g [Bro08]
% 0.32/0.46  
% 0.32/0.46  % Status   : Theorem
% 0.32/0.46  % Rating   : 0.11 v9.1.0, 0.12 v9.0.0, 0.30 v8.2.0, 0.31 v8.1.0, 0.09 v7.5.0, 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
% 0.32/0.46  % Syntax   : Number of formulae    :  101 (  46 unt;  54 typ;  46 def)
% 0.32/0.46  %            Number of atoms       :  258 (  60 equ;   0 cnn)
% 0.32/0.46  %            Maximal formula atoms :   45 (   5 avg)
% 0.32/0.46  %            Number of connectives :  421 (   7   ~;   4   |;  19   &; 275   @)
% 0.32/0.46  %                                         (   8 <=>; 108  =>;   0  <=;   0 <~>)
% 0.32/0.46  %            Maximal formula depth :   50 (   2 avg)
% 0.32/0.46  %            Number of types       :    2 (   0 usr)
% 0.32/0.46  %            Number of type conns  :   27 (  27   >;   0   *;   0   +;   0  <<)
% 0.32/0.46  %            Number of symbols     :   57 (  54 usr;  47 con; 0-2 aty)
% 0.32/0.46  %            Number of variables   :  140 (  16   ^; 106   !;  18   ?; 140   :)
% 0.32/0.46  % SPC      : TH0_THM_EQU_NAR
% 0.32/0.46  
% 0.32/0.46  % Comments : http://mathgate.info/detsetitem.php?id=93
% 0.32/0.46  %------------------------------------------------------------------------------
% 0.32/0.46  thf(in_type,type,
% 0.32/0.46      in: $i > $i > $o ).
% 0.32/0.46  
% 0.32/0.46  thf(exu_type,type,
% 0.32/0.46      exu: ( $i > $o ) > $o ).
% 0.32/0.46  
% 0.32/0.46  thf(exu,definition,
% 0.32/0.46      ( exu
% 0.32/0.46      = ( ^ [Xphi: $i > $o] :
% 0.32/0.46          ? [Xx: $i] :
% 0.32/0.46            ( ( Xphi @ Xx )
% 0.32/0.46            & ! [Xy: $i] :
% 0.32/0.46                ( ( Xphi @ Xy )
% 0.32/0.46               => ( Xx = Xy ) ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(setextAx_type,type,
% 0.32/0.46      setextAx: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(setextAx,definition,
% 0.32/0.46      ( setextAx
% 0.32/0.46      = ( ! [A: $i,B: $i] :
% 0.32/0.46            ( ! [Xx: $i] :
% 0.32/0.46                ( ( in @ Xx @ A )
% 0.32/0.46              <=> ( in @ Xx @ B ) )
% 0.32/0.46           => ( A = B ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(emptyset_type,type,
% 0.32/0.46      emptyset: $i ).
% 0.32/0.46  
% 0.32/0.46  thf(emptysetAx_type,type,
% 0.32/0.46      emptysetAx: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(emptysetAx,definition,
% 0.32/0.46      ( emptysetAx
% 0.32/0.46      = ( ! [Xx: $i] :
% 0.32/0.46            ~ ( in @ Xx @ emptyset ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(setadjoin_type,type,
% 0.32/0.46      setadjoin: $i > $i > $i ).
% 0.32/0.46  
% 0.32/0.46  thf(setadjoinAx_type,type,
% 0.32/0.46      setadjoinAx: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(setadjoinAx,definition,
% 0.32/0.46      ( setadjoinAx
% 0.32/0.46      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 0.32/0.46            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 0.32/0.46          <=> ( ( Xy = Xx )
% 0.32/0.46              | ( in @ Xy @ A ) ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(powerset_type,type,
% 0.32/0.46      powerset: $i > $i ).
% 0.32/0.46  
% 0.32/0.46  thf(powersetAx_type,type,
% 0.32/0.46      powersetAx: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(powersetAx,definition,
% 0.32/0.46      ( powersetAx
% 0.32/0.46      = ( ! [A: $i,B: $i] :
% 0.32/0.46            ( ( in @ B @ ( powerset @ A ) )
% 0.32/0.46          <=> ! [Xx: $i] :
% 0.32/0.46                ( ( in @ Xx @ B )
% 0.32/0.46               => ( in @ Xx @ A ) ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(setunion_type,type,
% 0.32/0.46      setunion: $i > $i ).
% 0.32/0.46  
% 0.32/0.46  thf(setunionAx_type,type,
% 0.32/0.46      setunionAx: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(setunionAx,definition,
% 0.32/0.46      ( setunionAx
% 0.32/0.46      = ( ! [A: $i,Xx: $i] :
% 0.32/0.46            ( ( in @ Xx @ ( setunion @ A ) )
% 0.32/0.46          <=> ? [B: $i] :
% 0.32/0.46                ( ( in @ Xx @ B )
% 0.32/0.46                & ( in @ B @ A ) ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(omega_type,type,
% 0.32/0.46      omega: $i ).
% 0.32/0.46  
% 0.32/0.46  thf(omega0Ax_type,type,
% 0.32/0.46      omega0Ax: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(omega0Ax,definition,
% 0.32/0.46      ( omega0Ax
% 0.32/0.46      = ( in @ emptyset @ omega ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(omegaSAx_type,type,
% 0.32/0.46      omegaSAx: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(omegaSAx,definition,
% 0.32/0.46      ( omegaSAx
% 0.32/0.46      = ( ! [Xx: $i] :
% 0.32/0.46            ( ( in @ Xx @ omega )
% 0.32/0.46           => ( in @ ( setadjoin @ Xx @ Xx ) @ omega ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(omegaIndAx_type,type,
% 0.32/0.46      omegaIndAx: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(omegaIndAx,definition,
% 0.32/0.46      ( omegaIndAx
% 0.32/0.46      = ( ! [A: $i] :
% 0.32/0.46            ( ( ( in @ emptyset @ A )
% 0.32/0.46              & ! [Xx: $i] :
% 0.32/0.46                  ( ( ( in @ Xx @ omega )
% 0.32/0.46                    & ( in @ Xx @ A ) )
% 0.32/0.46                 => ( in @ ( setadjoin @ Xx @ Xx ) @ A ) ) )
% 0.32/0.46           => ! [Xx: $i] :
% 0.32/0.46                ( ( in @ Xx @ omega )
% 0.32/0.46               => ( in @ Xx @ A ) ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(replAx_type,type,
% 0.32/0.46      replAx: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(replAx,definition,
% 0.32/0.46      ( replAx
% 0.32/0.46      = ( ! [Xphi: $i > $i > $o,A: $i] :
% 0.32/0.46            ( ! [Xx: $i] :
% 0.32/0.46                ( ( in @ Xx @ A )
% 0.32/0.46               => ( exu
% 0.32/0.46                  @ ^ [Xy: $i] : ( Xphi @ Xx @ Xy ) ) )
% 0.32/0.46           => ? [B: $i] :
% 0.32/0.46              ! [Xx: $i] :
% 0.32/0.46                ( ( in @ Xx @ B )
% 0.32/0.46              <=> ? [Xy: $i] :
% 0.32/0.46                    ( ( in @ Xy @ A )
% 0.32/0.46                    & ( Xphi @ Xy @ Xx ) ) ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(foundationAx_type,type,
% 0.32/0.46      foundationAx: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(foundationAx,definition,
% 0.32/0.46      ( foundationAx
% 0.32/0.46      = ( ! [A: $i] :
% 0.32/0.46            ( ? [Xx: $i] : ( in @ Xx @ A )
% 0.32/0.46           => ? [B: $i] :
% 0.32/0.46                ( ( in @ B @ A )
% 0.32/0.46                & ~ ? [Xx: $i] :
% 0.32/0.46                      ( ( in @ Xx @ B )
% 0.32/0.46                      & ( in @ Xx @ A ) ) ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(wellorderingAx_type,type,
% 0.32/0.46      wellorderingAx: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(wellorderingAx,definition,
% 0.32/0.46      ( wellorderingAx
% 0.32/0.46      = ( ! [A: $i] :
% 0.32/0.46          ? [B: $i] :
% 0.32/0.46            ( ! [C: $i] :
% 0.32/0.46                ( ( in @ C @ B )
% 0.32/0.46               => ! [Xx: $i] :
% 0.32/0.46                    ( ( in @ Xx @ C )
% 0.32/0.46                   => ( in @ Xx @ A ) ) )
% 0.32/0.46            & ! [Xx: $i,Xy: $i] :
% 0.32/0.46                ( ( ( in @ Xx @ A )
% 0.32/0.46                  & ( in @ Xy @ A ) )
% 0.32/0.46               => ( ! [C: $i] :
% 0.32/0.46                      ( ( in @ C @ B )
% 0.32/0.46                     => ( ( in @ Xx @ C )
% 0.32/0.46                      <=> ( in @ Xy @ C ) ) )
% 0.32/0.46                 => ( Xx = Xy ) ) )
% 0.32/0.46            & ! [C: $i,D: $i] :
% 0.32/0.46                ( ( ( in @ C @ B )
% 0.32/0.46                  & ( in @ D @ B ) )
% 0.32/0.46               => ( ! [Xx: $i] :
% 0.32/0.46                      ( ( in @ Xx @ C )
% 0.32/0.46                     => ( in @ Xx @ D ) )
% 0.32/0.46                  | ! [Xx: $i] :
% 0.32/0.46                      ( ( in @ Xx @ D )
% 0.32/0.46                     => ( in @ Xx @ C ) ) ) )
% 0.32/0.46            & ! [C: $i] :
% 0.32/0.46                ( ( ! [Xx: $i] :
% 0.32/0.46                      ( ( in @ Xx @ C )
% 0.32/0.46                     => ( in @ Xx @ A ) )
% 0.32/0.46                  & ? [Xx: $i] : ( in @ Xx @ C ) )
% 0.32/0.46               => ? [D: $i,Xx: $i] :
% 0.32/0.46                    ( ( in @ D @ B )
% 0.32/0.46                    & ( in @ Xx @ C )
% 0.32/0.46                    & ~ ? [Xy: $i] :
% 0.32/0.46                          ( ( in @ Xy @ D )
% 0.32/0.46                          & ( in @ Xy @ C ) )
% 0.32/0.46                    & ! [E: $i] :
% 0.32/0.46                        ( ( in @ E @ B )
% 0.32/0.46                       => ( ! [Xy: $i] :
% 0.32/0.46                              ( ( in @ Xy @ E )
% 0.32/0.46                             => ( in @ Xy @ D ) )
% 0.32/0.46                          | ( in @ Xx @ E ) ) ) ) ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(descr_type,type,
% 0.32/0.46      descr: ( $i > $o ) > $i ).
% 0.32/0.46  
% 0.32/0.46  thf(descrp_type,type,
% 0.32/0.46      descrp: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(descrp,definition,
% 0.32/0.46      ( descrp
% 0.32/0.46      = ( ! [Xphi: $i > $o] :
% 0.32/0.46            ( ( exu
% 0.32/0.46              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.32/0.46           => ( Xphi
% 0.32/0.46              @ ( descr
% 0.32/0.46                @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(dsetconstr_type,type,
% 0.32/0.46      dsetconstr: $i > ( $i > $o ) > $i ).
% 0.32/0.46  
% 0.32/0.46  thf(dsetconstrI_type,type,
% 0.32/0.46      dsetconstrI: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(dsetconstrI,definition,
% 0.32/0.46      ( dsetconstrI
% 0.32/0.46      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.32/0.46            ( ( in @ Xx @ A )
% 0.32/0.46           => ( ( Xphi @ Xx )
% 0.32/0.46             => ( in @ Xx
% 0.32/0.46                @ ( dsetconstr @ A
% 0.32/0.46                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(dsetconstrEL_type,type,
% 0.32/0.46      dsetconstrEL: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(dsetconstrEL,definition,
% 0.32/0.46      ( dsetconstrEL
% 0.32/0.46      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.32/0.46            ( ( in @ Xx
% 0.32/0.46              @ ( dsetconstr @ A
% 0.32/0.46                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 0.32/0.46           => ( in @ Xx @ A ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(dsetconstrER_type,type,
% 0.32/0.46      dsetconstrER: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(dsetconstrER,definition,
% 0.32/0.46      ( dsetconstrER
% 0.32/0.46      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.32/0.46            ( ( in @ Xx
% 0.32/0.46              @ ( dsetconstr @ A
% 0.32/0.46                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 0.32/0.46           => ( Xphi @ Xx ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(exuE1_type,type,
% 0.32/0.46      exuE1: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(exuE1,definition,
% 0.32/0.46      ( exuE1
% 0.32/0.46      = ( ! [Xphi: $i > $o] :
% 0.32/0.46            ( ( exu
% 0.32/0.46              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.32/0.46           => ? [Xx: $i] :
% 0.32/0.46                ( ( Xphi @ Xx )
% 0.32/0.46                & ! [Xy: $i] :
% 0.32/0.46                    ( ( Xphi @ Xy )
% 0.32/0.46                   => ( Xx = Xy ) ) ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(prop2set_type,type,
% 0.32/0.46      prop2set: $o > $i ).
% 0.32/0.46  
% 0.32/0.46  thf(prop2set,definition,
% 0.32/0.46      ( prop2set
% 0.32/0.46      = ( ^ [Xphi: $o] :
% 0.32/0.46            ( dsetconstr @ ( powerset @ emptyset )
% 0.32/0.46            @ ^ [Xx: $i] : Xphi ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(prop2setE_type,type,
% 0.32/0.46      prop2setE: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(prop2setE,definition,
% 0.32/0.46      ( prop2setE
% 0.32/0.46      = ( ! [Xphi: $o,Xx: $i] :
% 0.32/0.46            ( ( in @ Xx @ ( prop2set @ Xphi ) )
% 0.32/0.46           => Xphi ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(emptysetE_type,type,
% 0.32/0.46      emptysetE: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(emptysetE,definition,
% 0.32/0.46      ( emptysetE
% 0.32/0.46      = ( ! [Xx: $i] :
% 0.32/0.46            ( ( in @ Xx @ emptyset )
% 0.32/0.46           => ! [Xphi: $o] : Xphi ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(emptysetimpfalse_type,type,
% 0.32/0.46      emptysetimpfalse: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(emptysetimpfalse,definition,
% 0.32/0.46      ( emptysetimpfalse
% 0.32/0.46      = ( ! [Xx: $i] :
% 0.32/0.46            ( ( in @ Xx @ emptyset )
% 0.32/0.46           => $false ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(notinemptyset_type,type,
% 0.32/0.46      notinemptyset: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(notinemptyset,definition,
% 0.32/0.46      ( notinemptyset
% 0.32/0.46      = ( ! [Xx: $i] :
% 0.32/0.46            ~ ( in @ Xx @ emptyset ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(exuE3e_type,type,
% 0.32/0.46      exuE3e: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(exuE3e,definition,
% 0.32/0.46      ( exuE3e
% 0.32/0.46      = ( ! [Xphi: $i > $o] :
% 0.32/0.46            ( ( exu
% 0.32/0.46              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.32/0.46           => ? [Xx: $i] : ( Xphi @ Xx ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(setext_type,type,
% 0.32/0.46      setext: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(setext,definition,
% 0.32/0.46      ( setext
% 0.32/0.46      = ( ! [A: $i,B: $i] :
% 0.32/0.46            ( ! [Xx: $i] :
% 0.32/0.46                ( ( in @ Xx @ A )
% 0.32/0.46               => ( in @ Xx @ B ) )
% 0.32/0.46           => ( ! [Xx: $i] :
% 0.32/0.46                  ( ( in @ Xx @ B )
% 0.32/0.46                 => ( in @ Xx @ A ) )
% 0.32/0.46             => ( A = B ) ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(emptyI_type,type,
% 0.32/0.46      emptyI: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(emptyI,definition,
% 0.32/0.46      ( emptyI
% 0.32/0.46      = ( ! [A: $i] :
% 0.32/0.46            ( ! [Xx: $i] :
% 0.32/0.46                ~ ( in @ Xx @ A )
% 0.32/0.46           => ( A = emptyset ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(noeltsimpempty_type,type,
% 0.32/0.46      noeltsimpempty: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(noeltsimpempty,definition,
% 0.32/0.46      ( noeltsimpempty
% 0.32/0.46      = ( ! [A: $i] :
% 0.32/0.46            ( ! [Xx: $i] :
% 0.32/0.46                ~ ( in @ Xx @ A )
% 0.32/0.46           => ( A = emptyset ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(setbeta_type,type,
% 0.32/0.46      setbeta: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(setbeta,definition,
% 0.32/0.46      ( setbeta
% 0.32/0.46      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.32/0.46            ( ( in @ Xx @ A )
% 0.32/0.46           => ( ( in @ Xx
% 0.32/0.46                @ ( dsetconstr @ A
% 0.32/0.46                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 0.32/0.46            <=> ( Xphi @ Xx ) ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(nonempty_type,type,
% 0.32/0.46      nonempty: $i > $o ).
% 0.32/0.46  
% 0.32/0.46  thf(nonempty,definition,
% 0.32/0.46      ( nonempty
% 0.32/0.46      = ( ^ [Xx: $i] : ( Xx != emptyset ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(nonemptyE1_type,type,
% 0.32/0.46      nonemptyE1: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(nonemptyE1,definition,
% 0.32/0.46      ( nonemptyE1
% 0.32/0.46      = ( ! [A: $i] :
% 0.32/0.46            ( ( nonempty @ A )
% 0.32/0.46           => ? [Xx: $i] : ( in @ Xx @ A ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(nonemptyI_type,type,
% 0.32/0.46      nonemptyI: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(nonemptyI,definition,
% 0.32/0.46      ( nonemptyI
% 0.32/0.46      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.32/0.46            ( ( in @ Xx @ A )
% 0.32/0.46           => ( ( Xphi @ Xx )
% 0.32/0.46             => ( nonempty
% 0.32/0.46                @ ( dsetconstr @ A
% 0.32/0.46                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(nonemptyI1_type,type,
% 0.32/0.46      nonemptyI1: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(nonemptyI1,definition,
% 0.32/0.46      ( nonemptyI1
% 0.32/0.46      = ( ! [A: $i] :
% 0.32/0.46            ( ? [Xx: $i] : ( in @ Xx @ A )
% 0.32/0.46           => ( nonempty @ A ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(setadjoinIL_type,type,
% 0.32/0.46      setadjoinIL: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(setadjoinIL,definition,
% 0.32/0.46      ( setadjoinIL
% 0.32/0.46      = ( ! [Xx: $i,Xy: $i] : ( in @ Xx @ ( setadjoin @ Xx @ Xy ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(emptyinunitempty_type,type,
% 0.32/0.46      emptyinunitempty: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(emptyinunitempty,definition,
% 0.32/0.46      ( emptyinunitempty
% 0.32/0.46      = ( in @ emptyset @ ( setadjoin @ emptyset @ emptyset ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(setadjoinIR_type,type,
% 0.32/0.46      setadjoinIR: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(setadjoinIR,definition,
% 0.32/0.46      ( setadjoinIR
% 0.32/0.46      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 0.32/0.46            ( ( in @ Xy @ A )
% 0.32/0.46           => ( in @ Xy @ ( setadjoin @ Xx @ A ) ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(setadjoinE_type,type,
% 0.32/0.46      setadjoinE: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(setadjoinE,definition,
% 0.32/0.46      ( setadjoinE
% 0.32/0.46      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 0.32/0.46            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 0.32/0.46           => ! [Xphi: $o] :
% 0.32/0.46                ( ( ( Xy = Xx )
% 0.32/0.46                 => Xphi )
% 0.32/0.46               => ( ( ( in @ Xy @ A )
% 0.32/0.46                   => Xphi )
% 0.32/0.46                 => Xphi ) ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(setadjoinOr_type,type,
% 0.32/0.46      setadjoinOr: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(setadjoinOr,definition,
% 0.32/0.46      ( setadjoinOr
% 0.32/0.46      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 0.32/0.46            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 0.32/0.46           => ( ( Xy = Xx )
% 0.32/0.46              | ( in @ Xy @ A ) ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(setoftrueEq_type,type,
% 0.32/0.46      setoftrueEq: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(setoftrueEq,definition,
% 0.32/0.46      ( setoftrueEq
% 0.32/0.46      = ( ! [A: $i] :
% 0.32/0.46            ( ( dsetconstr @ A
% 0.32/0.46              @ ^ [Xx: $i] : $true )
% 0.32/0.46            = A ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(powersetI_type,type,
% 0.32/0.46      powersetI: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(powersetI,definition,
% 0.32/0.46      ( powersetI
% 0.32/0.46      = ( ! [A: $i,B: $i] :
% 0.32/0.46            ( ! [Xx: $i] :
% 0.32/0.46                ( ( in @ Xx @ B )
% 0.32/0.46               => ( in @ Xx @ A ) )
% 0.32/0.46           => ( in @ B @ ( powerset @ A ) ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(emptyinPowerset_type,type,
% 0.32/0.46      emptyinPowerset: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(emptyinPowerset,definition,
% 0.32/0.46      ( emptyinPowerset
% 0.32/0.46      = ( ! [A: $i] : ( in @ emptyset @ ( powerset @ A ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(emptyInPowerset_type,type,
% 0.32/0.46      emptyInPowerset: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(emptyInPowerset,definition,
% 0.32/0.46      ( emptyInPowerset
% 0.32/0.46      = ( ! [A: $i] : ( in @ emptyset @ ( powerset @ A ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(powersetE_type,type,
% 0.32/0.46      powersetE: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(powersetE,definition,
% 0.32/0.46      ( powersetE
% 0.32/0.46      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.32/0.46            ( ( in @ B @ ( powerset @ A ) )
% 0.32/0.46           => ( ( in @ Xx @ B )
% 0.32/0.46             => ( in @ Xx @ A ) ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(setunionI_type,type,
% 0.32/0.46      setunionI: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(setunionI,definition,
% 0.32/0.46      ( setunionI
% 0.32/0.46      = ( ! [A: $i,Xx: $i,B: $i] :
% 0.32/0.46            ( ( in @ Xx @ B )
% 0.32/0.46           => ( ( in @ B @ A )
% 0.32/0.46             => ( in @ Xx @ ( setunion @ A ) ) ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(setunionE_type,type,
% 0.32/0.46      setunionE: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(setunionE,definition,
% 0.32/0.46      ( setunionE
% 0.32/0.46      = ( ! [A: $i,Xx: $i] :
% 0.32/0.46            ( ( in @ Xx @ ( setunion @ A ) )
% 0.32/0.46           => ! [Xphi: $o] :
% 0.32/0.46                ( ! [B: $i] :
% 0.32/0.46                    ( ( in @ Xx @ B )
% 0.32/0.46                   => ( ( in @ B @ A )
% 0.32/0.46                     => Xphi ) )
% 0.32/0.46               => Xphi ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(subPowSU_type,type,
% 0.32/0.46      subPowSU: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(subPowSU,definition,
% 0.32/0.46      ( subPowSU
% 0.32/0.46      = ( ! [A: $i,Xx: $i] :
% 0.32/0.46            ( ( in @ Xx @ A )
% 0.32/0.46           => ( in @ Xx @ ( powerset @ ( setunion @ A ) ) ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(exuE2_type,type,
% 0.32/0.46      exuE2: $o ).
% 0.32/0.46  
% 0.32/0.46  thf(exuE2,definition,
% 0.32/0.46      ( exuE2
% 0.32/0.46      = ( ! [Xphi: $i > $o] :
% 0.32/0.46            ( ( exu
% 0.32/0.46              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.32/0.46           => ? [Xx: $i] :
% 0.32/0.46              ! [Xy: $i] :
% 0.32/0.46                ( ( Xphi @ Xy )
% 0.32/0.46              <=> ( Xy = Xx ) ) ) ) ) ).
% 0.32/0.46  
% 0.32/0.46  thf(nonemptyImpWitness_type,type,
% 0.32/0.46      nonemptyImpWitness: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(nonemptyImpWitness,definition,
% 0.32/0.47      ( nonemptyImpWitness
% 0.32/0.47      = ( ! [A: $i] :
% 0.32/0.47            ( ( nonempty @ A )
% 0.32/0.47           => ? [Xx: $i] :
% 0.32/0.47                ( ( in @ Xx @ A )
% 0.32/0.47                & $true ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(uniqinunit,conjecture,
% 0.32/0.47      ( setextAx
% 0.32/0.47     => ( emptysetAx
% 0.32/0.47       => ( setadjoinAx
% 0.32/0.47         => ( powersetAx
% 0.32/0.47           => ( setunionAx
% 0.32/0.47             => ( omega0Ax
% 0.32/0.47               => ( omegaSAx
% 0.32/0.47                 => ( omegaIndAx
% 0.32/0.47                   => ( replAx
% 0.32/0.47                     => ( foundationAx
% 0.32/0.47                       => ( wellorderingAx
% 0.32/0.47                         => ( descrp
% 0.32/0.47                           => ( dsetconstrI
% 0.32/0.47                             => ( dsetconstrEL
% 0.32/0.47                               => ( dsetconstrER
% 0.32/0.47                                 => ( exuE1
% 0.32/0.47                                   => ( prop2setE
% 0.32/0.47                                     => ( emptysetE
% 0.32/0.47                                       => ( emptysetimpfalse
% 0.32/0.47                                         => ( notinemptyset
% 0.32/0.47                                           => ( exuE3e
% 0.32/0.47                                             => ( setext
% 0.32/0.47                                               => ( emptyI
% 0.32/0.47                                                 => ( noeltsimpempty
% 0.32/0.47                                                   => ( setbeta
% 0.32/0.47                                                     => ( nonemptyE1
% 0.32/0.47                                                       => ( nonemptyI
% 0.32/0.47                                                         => ( nonemptyI1
% 0.32/0.47                                                           => ( setadjoinIL
% 0.32/0.47                                                             => ( emptyinunitempty
% 0.32/0.47                                                               => ( setadjoinIR
% 0.32/0.47                                                                 => ( setadjoinE
% 0.32/0.47                                                                   => ( setadjoinOr
% 0.32/0.47                                                                     => ( setoftrueEq
% 0.32/0.47                                                                       => ( powersetI
% 0.32/0.47                                                                         => ( emptyinPowerset
% 0.32/0.47                                                                           => ( emptyInPowerset
% 0.32/0.47                                                                             => ( powersetE
% 0.32/0.47                                                                               => ( setunionI
% 0.32/0.47                                                                                 => ( setunionE
% 0.32/0.47                                                                                   => ( subPowSU
% 0.32/0.47                                                                                     => ( exuE2
% 0.32/0.47                                                                                       => ( nonemptyImpWitness
% 0.32/0.47                                                                                         => ! [Xx: $i,Xy: $i] :
% 0.32/0.47                                                                                              ( ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) )
% 0.32/0.47                                                                                             => ( Xx = Xy ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  %------------------------------------------------------------------------------
% 0.32/0.47  ------------------------
% 1.89/1.39  ---- Embedded in THF ---
% 1.89/1.39  %%% This output was generated by embedproblem, version 1.9.5 (library version 1.9).
% 1.89/1.39  %%% Generated on Tue Feb 24 12:25:41 EST 2026
% 1.89/1.39  %%% using '$$dhol' embedding, version 1.3.0.
% 1.89/1.39  %%% Logic specification used:
% 1.89/1.39  %%% thf(spec, logic, $$dhol).
% 1.89/1.39  
% 1.89/1.39  % SZS output start ListOfTHF for /export/starexec/sandbox/tmp/tmp.p9jyL4yqSG/DTF2DTF5545.p
% See solution above
% 1.89/1.39  ------------------------
% 2.11/1.40  ---- Cleaned THF ---
% 2.11/1.40  thf(in_type,type,
% 2.11/1.40      in: $i > $i > $o ).
% 2.11/1.40  
% 2.11/1.40  thf(exu_type,type,
% 2.11/1.40      exu: ( $i > $o ) > $o ).
% 2.11/1.40  
% 2.11/1.40  thf(exu,definition,
% 2.11/1.40      ( exu
% 2.11/1.40      = ( ^ [Xphi: $i > $o] :
% 2.11/1.40          ? [Xx: $i] :
% 2.11/1.40            ( ( Xphi @ Xx )
% 2.11/1.40            & ! [Xy: $i] :
% 2.11/1.40                ( ( Xphi @ Xy )
% 2.11/1.40               => ( Xx = Xy ) ) ) ) ) ).
% 2.11/1.40  
% 2.11/1.40  thf(setextAx_type,type,
% 2.11/1.40      setextAx: $o ).
% 2.11/1.40  
% 2.11/1.40  thf(setextAx,definition,
% 2.11/1.40      ( setextAx
% 2.11/1.40      = ( ! [A: $i,B: $i] :
% 2.11/1.40            ( ! [Xx: $i] :
% 2.11/1.40                ( ( in @ Xx @ A )
% 2.11/1.40              <=> ( in @ Xx @ B ) )
% 2.11/1.40           => ( A = B ) ) ) ) ).
% 2.11/1.40  
% 2.11/1.40  thf(emptyset_type,type,
% 2.11/1.40      emptyset: $i ).
% 2.11/1.40  
% 2.11/1.40  thf(emptysetAx_type,type,
% 2.11/1.40      emptysetAx: $o ).
% 2.11/1.40  
% 2.11/1.40  thf(emptysetAx,definition,
% 2.11/1.40      ( emptysetAx
% 2.11/1.40      = ( ! [Xx: $i] :
% 2.11/1.40            ~ ( in @ Xx @ emptyset ) ) ) ).
% 2.11/1.40  
% 2.11/1.40  thf(setadjoin_type,type,
% 2.11/1.40      setadjoin: $i > $i > $i ).
% 2.11/1.40  
% 2.11/1.40  thf(setadjoinAx_type,type,
% 2.11/1.40      setadjoinAx: $o ).
% 2.11/1.40  
% 2.11/1.40  thf(setadjoinAx,definition,
% 2.11/1.40      ( setadjoinAx
% 2.11/1.40      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 2.11/1.40            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 2.11/1.40          <=> ( ( Xy = Xx )
% 2.11/1.40              | ( in @ Xy @ A ) ) ) ) ) ).
% 2.11/1.40  
% 2.11/1.40  thf(powerset_type,type,
% 2.11/1.40      powerset: $i > $i ).
% 2.11/1.40  
% 2.11/1.40  thf(powersetAx_type,type,
% 2.11/1.40      powersetAx: $o ).
% 2.11/1.40  
% 2.11/1.40  thf(powersetAx,definition,
% 2.11/1.40      ( powersetAx
% 2.11/1.40      = ( ! [A: $i,B: $i] :
% 2.11/1.40            ( ( in @ B @ ( powerset @ A ) )
% 2.11/1.40          <=> ! [Xx: $i] :
% 2.11/1.40                ( ( in @ Xx @ B )
% 2.11/1.40               => ( in @ Xx @ A ) ) ) ) ) ).
% 2.11/1.40  
% 2.11/1.40  thf(setunion_type,type,
% 2.11/1.40      setunion: $i > $i ).
% 2.11/1.40  
% 2.11/1.40  thf(setunionAx_type,type,
% 2.11/1.40      setunionAx: $o ).
% 2.11/1.40  
% 2.11/1.40  thf(setunionAx,definition,
% 2.11/1.40      ( setunionAx
% 2.11/1.40      = ( ! [A: $i,Xx: $i] :
% 2.11/1.40            ( ( in @ Xx @ ( setunion @ A ) )
% 2.11/1.40          <=> ? [B: $i] :
% 2.11/1.40                ( ( in @ Xx @ B )
% 2.11/1.40                & ( in @ B @ A ) ) ) ) ) ).
% 2.11/1.40  
% 2.11/1.40  thf(omega_type,type,
% 2.11/1.40      omega: $i ).
% 2.11/1.40  
% 2.11/1.40  thf(omega0Ax_type,type,
% 2.11/1.40      omega0Ax: $o ).
% 2.11/1.40  
% 2.11/1.40  thf(omega0Ax,definition,
% 2.11/1.40      ( omega0Ax
% 2.11/1.40      = ( in @ emptyset @ omega ) ) ).
% 2.11/1.40  
% 2.11/1.40  thf(omegaSAx_type,type,
% 2.11/1.40      omegaSAx: $o ).
% 2.11/1.40  
% 2.11/1.40  thf(omegaSAx,definition,
% 2.11/1.40      ( omegaSAx
% 2.11/1.40      = ( ! [Xx: $i] :
% 2.11/1.40            ( ( in @ Xx @ omega )
% 2.11/1.40           => ( in @ ( setadjoin @ Xx @ Xx ) @ omega ) ) ) ) ).
% 2.11/1.40  
% 2.11/1.40  thf(omegaIndAx_type,type,
% 2.11/1.40      omegaIndAx: $o ).
% 2.11/1.40  
% 2.11/1.40  thf(omegaIndAx,definition,
% 2.11/1.40      ( omegaIndAx
% 2.11/1.40      = ( ! [A: $i] :
% 2.11/1.40            ( ( ( in @ emptyset @ A )
% 2.11/1.40              & ! [Xx: $i] :
% 2.11/1.40                  ( ( ( in @ Xx @ omega )
% 2.11/1.40                    & ( in @ Xx @ A ) )
% 2.11/1.40                 => ( in @ ( setadjoin @ Xx @ Xx ) @ A ) ) )
% 2.11/1.40           => ! [Xx: $i] :
% 2.11/1.40                ( ( in @ Xx @ omega )
% 2.11/1.40               => ( in @ Xx @ A ) ) ) ) ) ).
% 2.11/1.40  
% 2.11/1.40  thf(replAx_type,type,
% 2.11/1.40      replAx: $o ).
% 2.11/1.40  
% 2.11/1.40  thf(replAx,definition,
% 2.11/1.40      ( replAx
% 2.11/1.40      = ( ! [Xphi: $i > $i > $o,A: $i] :
% 2.11/1.40            ( ! [Xx: $i] :
% 2.11/1.40                ( ( in @ Xx @ A )
% 2.11/1.40               => ( exu
% 2.11/1.40                  @ ^ [Xy: $i] : ( Xphi @ Xx @ Xy ) ) )
% 2.11/1.40           => ? [B: $i] :
% 2.11/1.40              ! [Xx: $i] :
% 2.11/1.40                ( ( in @ Xx @ B )
% 2.11/1.40              <=> ? [Xy: $i] :
% 2.11/1.40                    ( ( in @ Xy @ A )
% 2.11/1.40                    & ( Xphi @ Xy @ Xx ) ) ) ) ) ) ).
% 2.11/1.40  
% 2.11/1.40  thf(foundationAx_type,type,
% 2.11/1.40      foundationAx: $o ).
% 2.11/1.40  
% 2.11/1.40  thf(foundationAx,definition,
% 2.11/1.40      ( foundationAx
% 2.11/1.40      = ( ! [A: $i] :
% 2.11/1.40            ( ? [Xx: $i] : ( in @ Xx @ A )
% 2.11/1.40           => ? [B: $i] :
% 2.11/1.40                ( ( in @ B @ A )
% 2.11/1.40                & ~ ? [Xx: $i] :
% 2.11/1.40                      ( ( in @ Xx @ B )
% 2.11/1.40                      & ( in @ Xx @ A ) ) ) ) ) ) ).
% 2.11/1.40  
% 2.11/1.40  thf(wellorderingAx_type,type,
% 2.11/1.40      wellorderingAx: $o ).
% 2.11/1.40  
% 2.11/1.40  thf(wellorderingAx,definition,
% 2.11/1.40      ( wellorderingAx
% 2.11/1.40      = ( ! [A: $i] :
% 2.11/1.40          ? [B: $i] :
% 2.11/1.40            ( ! [C: $i] :
% 2.11/1.40                ( ( in @ C @ B )
% 2.11/1.40               => ! [Xx: $i] :
% 2.11/1.40                    ( ( in @ Xx @ C )
% 2.11/1.40                   => ( in @ Xx @ A ) ) )
% 2.11/1.40            & ! [Xx: $i,Xy: $i] :
% 2.11/1.40                ( ( ( in @ Xx @ A )
% 2.11/1.40                  & ( in @ Xy @ A ) )
% 2.11/1.40               => ( ! [C: $i] :
% 2.11/1.40                      ( ( in @ C @ B )
% 2.11/1.40                     => ( ( in @ Xx @ C )
% 2.11/1.40                      <=> ( in @ Xy @ C ) ) )
% 2.11/1.40                 => ( Xx = Xy ) ) )
% 2.11/1.40            & ! [C: $i,D: $i] :
% 2.11/1.40                ( ( ( in @ C @ B )
% 2.11/1.40                  & ( in @ D @ B ) )
% 2.11/1.40               => ( ! [Xx: $i] :
% 2.11/1.40                      ( ( in @ Xx @ C )
% 2.11/1.40                     => ( in @ Xx @ D ) )
% 2.11/1.40                  | ! [Xx: $i] :
% 2.11/1.40                      ( ( in @ Xx @ D )
% 2.11/1.40                     => ( in @ Xx @ C ) ) ) )
% 2.11/1.40            & ! [C: $i] :
% 2.11/1.40                ( ( ! [Xx: $i] :
% 2.11/1.40                      ( ( in @ Xx @ C )
% 2.11/1.40                     => ( in @ Xx @ A ) )
% 2.11/1.40                  & ? [Xx: $i] : ( in @ Xx @ C ) )
% 2.11/1.40               => ? [D: $i,Xx: $i] :
% 2.11/1.40                    ( ( in @ D @ B )
% 2.11/1.40                    & ( in @ Xx @ C )
% 2.11/1.40                    & ~ ? [Xy: $i] :
% 2.11/1.40                          ( ( in @ Xy @ D )
% 2.11/1.40                          & ( in @ Xy @ C ) )
% 2.11/1.40                    & ! [E: $i] :
% 2.11/1.40                        ( ( in @ E @ B )
% 2.11/1.40                       => ( ! [Xy: $i] :
% 2.11/1.40                              ( ( in @ Xy @ E )
% 2.11/1.40                             => ( in @ Xy @ D ) )
% 2.11/1.40                          | ( in @ Xx @ E ) ) ) ) ) ) ) ) ).
% 2.11/1.40  
% 2.11/1.40  thf(descr_type,type,
% 2.11/1.40      descr: ( $i > $o ) > $i ).
% 2.11/1.40  
% 2.11/1.40  thf(descrp_type,type,
% 2.11/1.40      descrp: $o ).
% 2.11/1.40  
% 2.11/1.40  thf(descrp,definition,
% 2.11/1.40      ( descrp
% 2.11/1.40      = ( ! [Xphi: $i > $o] :
% 2.11/1.40            ( ( exu
% 2.11/1.40              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 2.11/1.40           => ( Xphi
% 2.11/1.40              @ ( descr
% 2.11/1.40                @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ) ).
% 2.11/1.40  
% 2.11/1.40  thf(dsetconstr_type,type,
% 2.11/1.40      dsetconstr: $i > ( $i > $o ) > $i ).
% 2.11/1.40  
% 2.11/1.40  thf(dsetconstrI_type,type,
% 2.11/1.40      dsetconstrI: $o ).
% 2.11/1.40  
% 2.11/1.40  thf(dsetconstrI,definition,
% 2.11/1.40      ( dsetconstrI
% 2.11/1.40      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 2.11/1.40            ( ( in @ Xx @ A )
% 2.11/1.40           => ( ( Xphi @ Xx )
% 2.11/1.40             => ( in @ Xx
% 2.11/1.40                @ ( dsetconstr @ A
% 2.11/1.40                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 2.11/1.40  
% 2.11/1.40  thf(dsetconstrEL_type,type,
% 2.11/1.40      dsetconstrEL: $o ).
% 2.11/1.40  
% 2.11/1.40  thf(dsetconstrEL,definition,
% 2.11/1.40      ( dsetconstrEL
% 2.11/1.40      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 2.11/1.40            ( ( in @ Xx
% 2.11/1.40              @ ( dsetconstr @ A
% 2.11/1.40                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 2.11/1.40           => ( in @ Xx @ A ) ) ) ) ).
% 2.11/1.40  
% 2.11/1.40  thf(dsetconstrER_type,type,
% 2.11/1.40      dsetconstrER: $o ).
% 2.11/1.40  
% 2.11/1.40  thf(dsetconstrER,definition,
% 2.11/1.40      ( dsetconstrER
% 2.11/1.40      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 2.11/1.40            ( ( in @ Xx
% 2.11/1.40              @ ( dsetconstr @ A
% 2.11/1.40                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 2.11/1.40           => ( Xphi @ Xx ) ) ) ) ).
% 2.11/1.40  
% 2.11/1.40  thf(exuE1_type,type,
% 2.11/1.40      exuE1: $o ).
% 2.11/1.40  
% 2.11/1.40  thf(exuE1,definition,
% 2.11/1.40      ( exuE1
% 2.11/1.40      = ( ! [Xphi: $i > $o] :
% 2.11/1.41            ( ( exu
% 2.11/1.41              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 2.11/1.41           => ? [Xx: $i] :
% 2.11/1.41                ( ( Xphi @ Xx )
% 2.11/1.41                & ! [Xy: $i] :
% 2.11/1.41                    ( ( Xphi @ Xy )
% 2.11/1.41                   => ( Xx = Xy ) ) ) ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(prop2set_type,type,
% 2.11/1.41      prop2set: $o > $i ).
% 2.11/1.41  
% 2.11/1.41  thf(prop2set,definition,
% 2.11/1.41      ( prop2set
% 2.11/1.41      = ( ^ [Xphi: $o] :
% 2.11/1.41            ( dsetconstr @ ( powerset @ emptyset )
% 2.11/1.41            @ ^ [Xx: $i] : Xphi ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(prop2setE_type,type,
% 2.11/1.41      prop2setE: $o ).
% 2.11/1.41  
% 2.11/1.41  thf(prop2setE,definition,
% 2.11/1.41      ( prop2setE
% 2.11/1.41      = ( ! [Xphi: $o,Xx: $i] :
% 2.11/1.41            ( ( in @ Xx @ ( prop2set @ Xphi ) )
% 2.11/1.41           => Xphi ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(emptysetE_type,type,
% 2.11/1.41      emptysetE: $o ).
% 2.11/1.41  
% 2.11/1.41  thf(emptysetE,definition,
% 2.11/1.41      ( emptysetE
% 2.11/1.41      = ( ! [Xx: $i] :
% 2.11/1.41            ( ( in @ Xx @ emptyset )
% 2.11/1.41           => ! [Xphi: $o] : Xphi ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(emptysetimpfalse_type,type,
% 2.11/1.41      emptysetimpfalse: $o ).
% 2.11/1.41  
% 2.11/1.41  thf(emptysetimpfalse,definition,
% 2.11/1.41      ( emptysetimpfalse
% 2.11/1.41      = ( ! [Xx: $i] :
% 2.11/1.41            ( ( in @ Xx @ emptyset )
% 2.11/1.41           => $false ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(notinemptyset_type,type,
% 2.11/1.41      notinemptyset: $o ).
% 2.11/1.41  
% 2.11/1.41  thf(notinemptyset,definition,
% 2.11/1.41      ( notinemptyset
% 2.11/1.41      = ( ! [Xx: $i] :
% 2.11/1.41            ~ ( in @ Xx @ emptyset ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(exuE3e_type,type,
% 2.11/1.41      exuE3e: $o ).
% 2.11/1.41  
% 2.11/1.41  thf(exuE3e,definition,
% 2.11/1.41      ( exuE3e
% 2.11/1.41      = ( ! [Xphi: $i > $o] :
% 2.11/1.41            ( ( exu
% 2.11/1.41              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 2.11/1.41           => ? [Xx: $i] : ( Xphi @ Xx ) ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(setext_type,type,
% 2.11/1.41      setext: $o ).
% 2.11/1.41  
% 2.11/1.41  thf(setext,definition,
% 2.11/1.41      ( setext
% 2.11/1.41      = ( ! [A: $i,B: $i] :
% 2.11/1.41            ( ! [Xx: $i] :
% 2.11/1.41                ( ( in @ Xx @ A )
% 2.11/1.41               => ( in @ Xx @ B ) )
% 2.11/1.41           => ( ! [Xx: $i] :
% 2.11/1.41                  ( ( in @ Xx @ B )
% 2.11/1.41                 => ( in @ Xx @ A ) )
% 2.11/1.41             => ( A = B ) ) ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(emptyI_type,type,
% 2.11/1.41      emptyI: $o ).
% 2.11/1.41  
% 2.11/1.41  thf(emptyI,definition,
% 2.11/1.41      ( emptyI
% 2.11/1.41      = ( ! [A: $i] :
% 2.11/1.41            ( ! [Xx: $i] :
% 2.11/1.41                ~ ( in @ Xx @ A )
% 2.11/1.41           => ( A = emptyset ) ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(noeltsimpempty_type,type,
% 2.11/1.41      noeltsimpempty: $o ).
% 2.11/1.41  
% 2.11/1.41  thf(noeltsimpempty,definition,
% 2.11/1.41      ( noeltsimpempty
% 2.11/1.41      = ( ! [A: $i] :
% 2.11/1.41            ( ! [Xx: $i] :
% 2.11/1.41                ~ ( in @ Xx @ A )
% 2.11/1.41           => ( A = emptyset ) ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(setbeta_type,type,
% 2.11/1.41      setbeta: $o ).
% 2.11/1.41  
% 2.11/1.41  thf(setbeta,definition,
% 2.11/1.41      ( setbeta
% 2.11/1.41      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 2.11/1.41            ( ( in @ Xx @ A )
% 2.11/1.41           => ( ( in @ Xx
% 2.11/1.41                @ ( dsetconstr @ A
% 2.11/1.41                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 2.11/1.41            <=> ( Xphi @ Xx ) ) ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(nonempty_type,type,
% 2.11/1.41      nonempty: $i > $o ).
% 2.11/1.41  
% 2.11/1.41  thf(nonempty,definition,
% 2.11/1.41      ( nonempty
% 2.11/1.41      = ( ^ [Xx: $i] : ( Xx != emptyset ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(nonemptyE1_type,type,
% 2.11/1.41      nonemptyE1: $o ).
% 2.11/1.41  
% 2.11/1.41  thf(nonemptyE1,definition,
% 2.11/1.41      ( nonemptyE1
% 2.11/1.41      = ( ! [A: $i] :
% 2.11/1.41            ( ( nonempty @ A )
% 2.11/1.41           => ? [Xx: $i] : ( in @ Xx @ A ) ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(nonemptyI_type,type,
% 2.11/1.41      nonemptyI: $o ).
% 2.11/1.41  
% 2.11/1.41  thf(nonemptyI,definition,
% 2.11/1.41      ( nonemptyI
% 2.11/1.41      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 2.11/1.41            ( ( in @ Xx @ A )
% 2.11/1.41           => ( ( Xphi @ Xx )
% 2.11/1.41             => ( nonempty
% 2.11/1.41                @ ( dsetconstr @ A
% 2.11/1.41                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(nonemptyI1_type,type,
% 2.11/1.41      nonemptyI1: $o ).
% 2.11/1.41  
% 2.11/1.41  thf(nonemptyI1,definition,
% 2.11/1.41      ( nonemptyI1
% 2.11/1.41      = ( ! [A: $i] :
% 2.11/1.41            ( ? [Xx: $i] : ( in @ Xx @ A )
% 2.11/1.41           => ( nonempty @ A ) ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(setadjoinIL_type,type,
% 2.11/1.41      setadjoinIL: $o ).
% 2.11/1.41  
% 2.11/1.41  thf(setadjoinIL,definition,
% 2.11/1.41      ( setadjoinIL
% 2.11/1.41      = ( ! [Xx: $i,Xy: $i] : ( in @ Xx @ ( setadjoin @ Xx @ Xy ) ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(emptyinunitempty_type,type,
% 2.11/1.41      emptyinunitempty: $o ).
% 2.11/1.41  
% 2.11/1.41  thf(emptyinunitempty,definition,
% 2.11/1.41      ( emptyinunitempty
% 2.11/1.41      = ( in @ emptyset @ ( setadjoin @ emptyset @ emptyset ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(setadjoinIR_type,type,
% 2.11/1.41      setadjoinIR: $o ).
% 2.11/1.41  
% 2.11/1.41  thf(setadjoinIR,definition,
% 2.11/1.41      ( setadjoinIR
% 2.11/1.41      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 2.11/1.41            ( ( in @ Xy @ A )
% 2.11/1.41           => ( in @ Xy @ ( setadjoin @ Xx @ A ) ) ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(setadjoinE_type,type,
% 2.11/1.41      setadjoinE: $o ).
% 2.11/1.41  
% 2.11/1.41  thf(setadjoinE,definition,
% 2.11/1.41      ( setadjoinE
% 2.11/1.41      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 2.11/1.41            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 2.11/1.41           => ! [Xphi: $o] :
% 2.11/1.41                ( ( ( Xy = Xx )
% 2.11/1.41                 => Xphi )
% 2.11/1.41               => ( ( ( in @ Xy @ A )
% 2.11/1.41                   => Xphi )
% 2.11/1.41                 => Xphi ) ) ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(setadjoinOr_type,type,
% 2.11/1.41      setadjoinOr: $o ).
% 2.11/1.41  
% 2.11/1.41  thf(setadjoinOr,definition,
% 2.11/1.41      ( setadjoinOr
% 2.11/1.41      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 2.11/1.41            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 2.11/1.41           => ( ( Xy = Xx )
% 2.11/1.41              | ( in @ Xy @ A ) ) ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(setoftrueEq_type,type,
% 2.11/1.41      setoftrueEq: $o ).
% 2.11/1.41  
% 2.11/1.41  thf(setoftrueEq,definition,
% 2.11/1.41      ( setoftrueEq
% 2.11/1.41      = ( ! [A: $i] :
% 2.11/1.41            ( ( dsetconstr @ A
% 2.11/1.41              @ ^ [Xx: $i] : $true )
% 2.11/1.41            = A ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(powersetI_type,type,
% 2.11/1.41      powersetI: $o ).
% 2.11/1.41  
% 2.11/1.41  thf(powersetI,definition,
% 2.11/1.41      ( powersetI
% 2.11/1.41      = ( ! [A: $i,B: $i] :
% 2.11/1.41            ( ! [Xx: $i] :
% 2.11/1.41                ( ( in @ Xx @ B )
% 2.11/1.41               => ( in @ Xx @ A ) )
% 2.11/1.41           => ( in @ B @ ( powerset @ A ) ) ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(emptyinPowerset_type,type,
% 2.11/1.41      emptyinPowerset: $o ).
% 2.11/1.41  
% 2.11/1.41  thf(emptyinPowerset,definition,
% 2.11/1.41      ( emptyinPowerset
% 2.11/1.41      = ( ! [A: $i] : ( in @ emptyset @ ( powerset @ A ) ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(emptyInPowerset_type,type,
% 2.11/1.41      emptyInPowerset: $o ).
% 2.11/1.41  
% 2.11/1.41  thf(emptyInPowerset,definition,
% 2.11/1.41      ( emptyInPowerset
% 2.11/1.41      = ( ! [A: $i] : ( in @ emptyset @ ( powerset @ A ) ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(powersetE_type,type,
% 2.11/1.41      powersetE: $o ).
% 2.11/1.41  
% 2.11/1.41  thf(powersetE,definition,
% 2.11/1.41      ( powersetE
% 2.11/1.41      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.11/1.41            ( ( in @ B @ ( powerset @ A ) )
% 2.11/1.41           => ( ( in @ Xx @ B )
% 2.11/1.41             => ( in @ Xx @ A ) ) ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(setunionI_type,type,
% 2.11/1.41      setunionI: $o ).
% 2.11/1.41  
% 2.11/1.41  thf(setunionI,definition,
% 2.11/1.41      ( setunionI
% 2.11/1.41      = ( ! [A: $i,Xx: $i,B: $i] :
% 2.11/1.41            ( ( in @ Xx @ B )
% 2.11/1.41           => ( ( in @ B @ A )
% 2.11/1.41             => ( in @ Xx @ ( setunion @ A ) ) ) ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(setunionE_type,type,
% 2.11/1.41      setunionE: $o ).
% 2.11/1.41  
% 2.11/1.41  thf(setunionE,definition,
% 2.11/1.41      ( setunionE
% 2.11/1.41      = ( ! [A: $i,Xx: $i] :
% 2.11/1.41            ( ( in @ Xx @ ( setunion @ A ) )
% 2.11/1.41           => ! [Xphi: $o] :
% 2.11/1.41                ( ! [B: $i] :
% 2.11/1.41                    ( ( in @ Xx @ B )
% 2.11/1.41                   => ( ( in @ B @ A )
% 2.11/1.41                     => Xphi ) )
% 2.11/1.41               => Xphi ) ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(subPowSU_type,type,
% 2.11/1.41      subPowSU: $o ).
% 2.11/1.41  
% 2.11/1.41  thf(subPowSU,definition,
% 2.11/1.41      ( subPowSU
% 2.11/1.41      = ( ! [A: $i,Xx: $i] :
% 2.11/1.41            ( ( in @ Xx @ A )
% 2.11/1.41           => ( in @ Xx @ ( powerset @ ( setunion @ A ) ) ) ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(exuE2_type,type,
% 2.11/1.41      exuE2: $o ).
% 2.11/1.41  
% 2.11/1.41  thf(exuE2,definition,
% 2.11/1.41      ( exuE2
% 2.11/1.41      = ( ! [Xphi: $i > $o] :
% 2.11/1.41            ( ( exu
% 2.11/1.41              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 2.11/1.41           => ? [Xx: $i] :
% 2.11/1.41              ! [Xy: $i] :
% 2.11/1.41                ( ( Xphi @ Xy )
% 2.11/1.41              <=> ( Xy = Xx ) ) ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(nonemptyImpWitness_type,type,
% 2.11/1.41      nonemptyImpWitness: $o ).
% 2.11/1.41  
% 2.11/1.41  thf(nonemptyImpWitness,definition,
% 2.11/1.41      ( nonemptyImpWitness
% 2.11/1.41      = ( ! [A: $i] :
% 2.11/1.41            ( ( nonempty @ A )
% 2.11/1.41           => ? [Xx: $i] :
% 2.11/1.41                ( ( in @ Xx @ A )
% 2.11/1.41                & $true ) ) ) ) ).
% 2.11/1.41  
% 2.11/1.41  thf(uniqinunit,conjecture,
% 2.11/1.41      ( setextAx
% 2.11/1.41     => ( emptysetAx
% 2.11/1.41       => ( setadjoinAx
% 2.11/1.41         => ( powersetAx
% 2.11/1.41           => ( setunionAx
% 2.11/1.41             => ( omega0Ax
% 2.11/1.41               => ( omegaSAx
% 2.11/1.41                 => ( omegaIndAx
% 2.11/1.41                   => ( replAx
% 2.11/1.41                     => ( foundationAx
% 2.11/1.41                       => ( wellorderingAx
% 2.11/1.41                         => ( descrp
% 2.11/1.41                           => ( dsetconstrI
% 2.11/1.41                             => ( dsetconstrEL
% 2.11/1.41                               => ( dsetconstrER
% 2.11/1.41                                 => ( exuE1
% 2.11/1.41                                   => ( prop2setE
% 2.11/1.41                                     => ( emptysetE
% 2.11/1.41                                       => ( emptysetimpfalse
% 2.11/1.41                                         => ( notinemptyset
% 2.11/1.41                                           => ( exuE3e
% 2.11/1.41                                             => ( setext
% 2.11/1.41                                               => ( emptyI
% 2.11/1.41                                                 => ( noeltsimpempty
% 2.11/1.41                                                   => ( setbeta
% 2.11/1.41                                                     => ( nonemptyE1
% 2.11/1.41                                                       => ( nonemptyI
% 2.11/1.41                                                         => ( nonemptyI1
% 2.11/1.41                                                           => ( setadjoinIL
% 2.11/1.41                                                             => ( emptyinunitempty
% 2.11/1.41                                                               => ( setadjoinIR
% 2.11/1.41                                                                 => ( setadjoinE
% 2.11/1.41                                                                   => ( setadjoinOr
% 2.11/1.41                                                                     => ( setoftrueEq
% 2.11/1.41                                                                       => ( powersetI
% 2.11/1.41                                                                         => ( emptyinPowerset
% 2.11/1.41                                                                           => ( emptyInPowerset
% 2.11/1.41                                                                             => ( powersetE
% 2.11/1.41                                                                               => ( setunionI
% 2.11/1.41                                                                                 => ( setunionE
% 2.11/1.41                                                                                   => ( subPowSU
% 2.11/1.41                                                                                     => ( exuE2
% 2.11/1.41                                                                                       => ( nonemptyImpWitness
% 2.11/1.41                                                                                         => ! [Xx: $i,Xy: $i] :
% 2.11/1.41                                                                                              ( ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) )
% 2.11/1.41                                                                                             => ( Xx = Xy ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ).
% 2.11/1.41  ------------------------
% 2.11/1.42  % (5668)lrs+1004_1:128_cond=on:e2e=on:sp=weighted_frequency:i=18:si=on:rtra=on_0 on DTF2THF_5545 for (2999ds/18Mi)
% 2.11/1.42  % (5666)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_5545 for (2999ds/2Mi)
% 2.11/1.42  % (5666)Instruction limit reached!
% 2.11/1.42  % (5666)------------------------------
% 2.11/1.42  % (5666)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.11/1.42  % (5666)Termination reason: Unknown
% 2.11/1.42  % (5666)Termination phase: shuffling
% 2.11/1.42  
% 2.11/1.42  % (5666)Memory used [KB]: 1023
% 2.11/1.42  % (5666)Time elapsed: 0.002 s
% 2.11/1.42  % (5666)Instructions burned: 3 (million)
% 2.11/1.42  % (5666)------------------------------
% 2.11/1.42  % (5666)------------------------------
% 2.11/1.42  % (5668)Instruction limit reached!
% 2.11/1.42  % (5668)------------------------------
% 2.11/1.42  % (5668)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.11/1.42  % (5668)Termination reason: Unknown
% 2.11/1.42  % (5668)Termination phase: Property scanning
% 2.11/1.42  
% 2.11/1.42  % (5668)Memory used [KB]: 1535
% 2.11/1.42  % (5668)Time elapsed: 0.007 s
% 2.11/1.42  % (5668)Instructions burned: 18 (million)
% 2.11/1.42  % (5668)------------------------------
% 2.11/1.42  % (5668)------------------------------
% 2.11/1.43  % (5663)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_5545 for (2999ds/4Mi)
% 2.11/1.43  % (5662)lrs+1002_1:8_bd=off:fd=off:hud=10:tnu=1:i=183:si=on:rtra=on_0 on DTF2THF_5545 for (2999ds/183Mi)
% 2.11/1.43  % (5664)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_5545 for (2999ds/27Mi)
% 2.11/1.43  % (5665)lrs+10_1:1_au=on:inj=on:i=2:si=on:rtra=on_0 on DTF2THF_5545 for (2999ds/2Mi)
% 2.11/1.43  % (5667)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_5545 for (2999ds/275Mi)
% 2.11/1.43  % (5663)Instruction limit reached!
% 2.11/1.43  % (5663)------------------------------
% 2.11/1.43  % (5663)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.11/1.43  % (5663)Termination reason: Unknown
% 2.11/1.43  % (5663)Termination phase: shuffling
% 2.11/1.43  
% 2.11/1.43  % (5663)Memory used [KB]: 1151
% 2.11/1.43  % (5663)Time elapsed: 0.004 s
% 2.11/1.43  % (5663)Instructions burned: 5 (million)
% 2.11/1.43  % (5665)Instruction limit reached!
% 2.11/1.43  % (5665)------------------------------
% 2.11/1.43  % (5665)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.11/1.43  % (5665)Termination reason: Unknown
% 2.11/1.43  % (5665)Termination phase: shuffling
% 2.11/1.43  
% 2.11/1.43  % (5665)Memory used [KB]: 1023
% 2.11/1.43  % (5665)Time elapsed: 0.004 s
% 2.11/1.43  % (5665)Instructions burned: 3 (million)
% 2.11/1.43  % (5665)------------------------------
% 2.11/1.43  % (5665)------------------------------
% 2.11/1.43  % (5663)------------------------------
% 2.11/1.43  % (5663)------------------------------
% 2.11/1.43  % (5669)lrs+10_1:1_bet=on:cnfonf=off:fd=off:hud=5:inj=on:i=3:si=on:rtra=on_0 on DTF2THF_5545 for (2999ds/3Mi)
% 2.11/1.43  % (5669)Instruction limit reached!
% 2.11/1.43  % (5669)------------------------------
% 2.11/1.43  % (5669)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.11/1.43  % (5669)Termination reason: Unknown
% 2.11/1.43  % (5669)Termination phase: shuffling
% 2.11/1.43  
% 2.11/1.43  % (5669)Memory used [KB]: 1151
% 2.11/1.43  % (5669)Time elapsed: 0.003 s
% 2.11/1.43  % (5669)Instructions burned: 4 (million)
% 2.11/1.43  % (5669)------------------------------
% 2.11/1.43  % (5669)------------------------------
% 2.11/1.43  % (5670)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_5545 for (2999ds/37Mi)
% 2.11/1.44  % (5664)Instruction limit reached!
% 2.11/1.44  % (5664)------------------------------
% 2.11/1.44  % (5664)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.11/1.44  % (5664)Termination reason: Unknown
% 2.11/1.44  % (5664)Termination phase: Saturation
% 2.11/1.44  
% 2.11/1.44  % (5664)Memory used [KB]: 5756
% 2.11/1.44  % (5664)Time elapsed: 0.016 s
% 2.11/1.44  % (5664)Instructions burned: 27 (million)
% 2.11/1.44  % (5664)------------------------------
% 2.11/1.44  % (5664)------------------------------
% 2.11/1.44  % (5671)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_5545 for (2999ds/15Mi)
% 2.11/1.44  % (5673)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_5545 for (2999ds/1041Mi)
% 2.11/1.44  % (5670)Instruction limit reached!
% 2.11/1.44  % (5670)------------------------------
% 2.11/1.44  % (5670)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.11/1.44  % (5670)Termination reason: Unknown
% 2.11/1.44  % (5670)Termination phase: Saturation
% 2.11/1.44  
% 2.11/1.44  % (5670)Memory used [KB]: 6012
% 2.11/1.44  % (5670)Time elapsed: 0.011 s
% 2.11/1.44  % (5670)Instructions burned: 40 (million)
% 2.11/1.44  % (5670)------------------------------
% 2.11/1.44  % (5670)------------------------------
% 2.11/1.45  % (5671)Instruction limit reached!
% 2.11/1.45  % (5671)------------------------------
% 2.11/1.45  % (5671)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.11/1.45  % (5671)Termination reason: Unknown
% 2.11/1.45  % (5671)Termination phase: Preprocessing 3
% 2.11/1.45  
% 2.11/1.45  % (5671)Memory used [KB]: 1407
% 2.11/1.45  % (5671)Time elapsed: 0.006 s
% 2.11/1.45  % (5671)Instructions burned: 15 (million)
% 2.11/1.45  % (5671)------------------------------
% 2.11/1.45  % (5671)------------------------------
% 2.11/1.45  % (5672)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_5545 for (2999ds/3Mi)
% 2.11/1.45  % (5672)Instruction limit reached!
% 2.11/1.45  % (5672)------------------------------
% 2.11/1.45  % (5672)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.11/1.45  % (5672)Termination reason: Unknown
% 2.11/1.45  % (5672)Termination phase: shuffling
% 2.11/1.45  
% 2.11/1.45  % (5672)Memory used [KB]: 1023
% 2.11/1.45  % (5672)Time elapsed: 0.004 s
% 2.11/1.45  % (5672)Instructions burned: 4 (million)
% 2.11/1.45  % (5672)------------------------------
% 2.11/1.45  % (5672)------------------------------
% 2.11/1.45  % (5675)lrs+10_1:1_acc=on:amm=sco:cs=on:tgt=full:i=16:si=on:rtra=on_0 on DTF2THF_5545 for (2999ds/16Mi)
% 2.11/1.46  % (5676)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_5545 for (2999ds/3Mi)
% 2.11/1.46  % (5676)Instruction limit reached!
% 2.11/1.46  % (5676)------------------------------
% 2.11/1.46  % (5676)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.11/1.46  % (5676)Termination reason: Unknown
% 2.11/1.46  % (5676)Termination phase: shuffling
% 2.11/1.46  
% 2.11/1.46  % (5676)Memory used [KB]: 1151
% 2.11/1.46  % (5676)Time elapsed: 0.003 s
% 2.11/1.46  % (5676)Instructions burned: 4 (million)
% 2.11/1.46  % (5676)------------------------------
% 2.11/1.46  % (5676)------------------------------
% 2.11/1.46  % (5674)lrs+10_1:1_av=off:chr=on:plsq=on:slsq=on:i=7:si=on:rtra=on_0 on DTF2THF_5545 for (2999ds/7Mi)
% 2.11/1.46  % (5675)Instruction limit reached!
% 2.11/1.46  % (5675)------------------------------
% 2.11/1.46  % (5675)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.11/1.46  % (5675)Termination reason: Unknown
% 2.11/1.46  % (5675)Termination phase: Twee Goal Transformation
% 2.11/1.46  
% 2.11/1.46  % (5675)Memory used [KB]: 1279
% 2.11/1.46  % (5675)Time elapsed: 0.006 s
% 2.11/1.46  % (5675)Instructions burned: 18 (million)
% 2.11/1.46  % (5675)------------------------------
% 2.11/1.46  % (5675)------------------------------
% 2.11/1.46  % (5674)Instruction limit reached!
% 2.11/1.46  % (5674)------------------------------
% 2.11/1.46  % (5674)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.11/1.46  % (5674)Termination reason: Unknown
% 2.11/1.46  % (5674)Termination phase: shuffling
% 2.11/1.46  
% 2.11/1.46  % (5674)Memory used [KB]: 1151
% 2.11/1.46  % (5674)Time elapsed: 0.006 s
% 2.11/1.46  % (5674)Instructions burned: 8 (million)
% 2.11/1.46  % (5674)------------------------------
% 2.11/1.46  % (5674)------------------------------
% 2.11/1.46  % (5677)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_5545 for (2999ds/3Mi)
% 2.11/1.46  % (5677)Instruction limit reached!
% 2.11/1.46  % (5677)------------------------------
% 2.11/1.46  % (5677)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.11/1.46  % (5677)Termination reason: Unknown
% 2.11/1.46  % (5677)Termination phase: shuffling
% 2.11/1.46  
% 2.11/1.46  % (5677)Memory used [KB]: 1151
% 2.11/1.46  % (5677)Time elapsed: 0.003 s
% 2.11/1.46  % (5677)Instructions burned: 4 (million)
% 2.11/1.46  % (5677)------------------------------
% 2.11/1.46  % (5677)------------------------------
% 2.11/1.47  % (5678)lrs+10_1:1_cnfonf=off:cs=on:hud=3:prag=on:sup=off:i=7:si=on:rtra=on_0 on DTF2THF_5545 for (2999ds/7Mi)
% 2.11/1.47  % (5679)dis+1002_1:1_add=large:cnfonf=lazy_pi_sigma_gen:fe=off:prag=on:i=3:si=on:rtra=on_0 on DTF2THF_5545 for (2999ds/3Mi)
% 2.11/1.47  % (5679)Instruction limit reached!
% 2.11/1.47  % (5679)------------------------------
% 2.11/1.47  % (5679)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.11/1.47  % (5679)Termination reason: Unknown
% 2.11/1.47  % (5679)Termination phase: shuffling
% 2.11/1.47  
% 2.11/1.47  % (5679)Memory used [KB]: 1151
% 2.11/1.47  % (5679)Time elapsed: 0.002 s
% 2.11/1.47  % (5679)Instructions burned: 4 (million)
% 2.11/1.47  % (5679)------------------------------
% 2.11/1.47  % (5679)------------------------------
% 2.11/1.47  % (5678)Instruction limit reached!
% 2.11/1.47  % (5678)------------------------------
% 2.11/1.47  % (5678)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.11/1.47  % (5678)Termination reason: Unknown
% 2.11/1.47  % (5678)Termination phase: shuffling
% 2.11/1.47  
% 2.11/1.47  % (5678)Memory used [KB]: 1151
% 2.11/1.47  % (5678)Time elapsed: 0.003 s
% 2.11/1.47  % (5678)Instructions burned: 7 (million)
% 2.11/1.47  % (5678)------------------------------
% 2.11/1.47  % (5678)------------------------------
% 2.11/1.47  % (5680)dis+1004_1:1_cha=on:cs=on:fe=off:hud=1:i=4:si=on:rtra=on_0 on DTF2THF_5545 for (2999ds/4Mi)
% 2.11/1.47  % (5681)lrs+1002_1:1_anc=all_dependent:au=on:cbe=off:fde=unused:ntd=on:i=18:si=on:rtra=on_0 on DTF2THF_5545 for (2999ds/18Mi)
% 2.11/1.48  % (5680)Instruction limit reached!
% 2.11/1.48  % (5680)------------------------------
% 2.11/1.48  % (5680)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.11/1.48  % (5680)Termination reason: Unknown
% 2.11/1.48  % (5680)Termination phase: shuffling
% 2.11/1.48  
% 2.11/1.48  % (5680)Memory used [KB]: 1151
% 2.11/1.48  % (5680)Time elapsed: 0.003 s
% 2.11/1.48  % (5680)Instructions burned: 7 (million)
% 2.11/1.48  % (5680)------------------------------
% 2.11/1.48  % (5680)------------------------------
% 2.11/1.48  % (5682)lrs+10_1:1_e2e=on:sd=1:sgt=8:ss=axioms:i=710:si=on:rtra=on_0 on DTF2THF_5545 for (2999ds/710Mi)
% 2.11/1.48  % (5681)Instruction limit reached!
% 2.11/1.48  % (5681)------------------------------
% 2.11/1.48  % (5681)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.11/1.48  % (5681)Termination reason: Unknown
% 2.11/1.48  % (5681)Termination phase: Saturation
% 2.11/1.48  % (5683)lrs+1004_1:1_chr=on:prag=on:i=6:si=on:rtra=on_0 on DTF2THF_5545 for (2999ds/6Mi)
% 2.11/1.48  
% 2.11/1.48  % (5681)Memory used [KB]: 5756
% 2.11/1.48  % (5681)Time elapsed: 0.007 s
% 2.11/1.48  % (5681)Instructions burned: 18 (million)
% 2.11/1.48  % (5681)------------------------------
% 2.11/1.48  % (5681)------------------------------
% 2.11/1.48  % (5683)Instruction limit reached!
% 2.11/1.48  % (5683)------------------------------
% 2.11/1.48  % (5683)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.11/1.48  % (5683)Termination reason: Unknown
% 2.11/1.48  % (5683)Termination phase: shuffling
% 2.11/1.48  
% 2.11/1.48  % (5683)Memory used [KB]: 1151
% 2.11/1.48  % (5683)Time elapsed: 0.004 s
% 2.11/1.48  % (5683)Instructions burned: 8 (million)
% 2.11/1.48  % (5683)------------------------------
% 2.11/1.48  % (5683)------------------------------
% 2.11/1.49  % (5684)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_5545 for (2999ds/902Mi)
% 2.11/1.49  % (5685)dis+21_1:8_apa=on:cnfonf=off:fd=off:fsr=off:hud=0:ins=1:kws=inv_frequency:nwc=10.0:ss=axioms:st=5.0:i=21:si=on:rtra=on_0 on DTF2THF_5545 for (2999ds/21Mi)
% 2.11/1.49  % (5686)dis+10_1:1_cnfonf=lazy_gen:fe=off:i=5:si=on:rtra=on_0 on DTF2THF_5545 for (2999ds/5Mi)
% 2.11/1.49  % (5686)Instruction limit reached!
% 2.11/1.49  % (5686)------------------------------
% 2.11/1.49  % (5686)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.11/1.49  % (5686)Termination reason: Unknown
% 2.11/1.49  % (5686)Termination phase: shuffling
% 2.11/1.49  
% 2.11/1.49  % (5686)Memory used [KB]: 1151
% 2.11/1.49  % (5686)Time elapsed: 0.004 s
% 2.11/1.49  % (5686)Instructions burned: 8 (million)
% 2.11/1.49  % (5686)------------------------------
% 2.11/1.49  % (5686)------------------------------
% 2.11/1.50  % (5685)Instruction limit reached!
% 2.11/1.50  % (5685)------------------------------
% 2.11/1.50  % (5685)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.11/1.50  % (5685)Termination reason: Unknown
% 2.11/1.50  % (5685)Termination phase: Property scanning
% 2.11/1.50  
% 2.11/1.50  % (5685)Memory used [KB]: 1279
% 2.11/1.50  % (5685)Time elapsed: 0.008 s
% 2.11/1.50  % (5685)Instructions burned: 22 (million)
% 2.11/1.50  % (5685)------------------------------
% 2.11/1.50  % (5685)------------------------------
% 2.13/1.50  % (5684)First to succeed.
% 2.13/1.50  % (5687)lrs+2_1:1_cnfonf=lazy_not_gen_be_off:cs=on:fe=off:hud=10:inj=on:ins=3:plsq=on:plsqc=1:sd=10:ss=axioms:tnu=1:i=6:si=on:rtra=on_0 on DTF2THF_5545 for (2999ds/6Mi)
% 2.13/1.51  % (5684)Refutation found. Thanks to Tanya!
% 2.13/1.51  % SZS status Theorem for DTF2THF_5545
% 2.13/1.51  % SZS output start Proof for DTF2THF_5545
% 2.13/1.51  thf(func_def_0, type, in: $i > $i > $o).
% 2.13/1.51  thf(func_def_1, type, exu: ($i > $o) > $o).
% 2.13/1.51  thf(func_def_6, type, setadjoin: $i > $i > $i).
% 2.13/1.51  thf(func_def_8, type, powerset: $i > $i).
% 2.13/1.51  thf(func_def_10, type, setunion: $i > $i).
% 2.13/1.51  thf(func_def_19, type, descr: ($i > $o) > $i).
% 2.13/1.51  thf(func_def_21, type, dsetconstr: $i > ($i > $o) > $i).
% 2.13/1.51  thf(func_def_26, type, prop2set: $o > $i).
% 2.13/1.51  thf(func_def_36, type, nonempty: $i > $o).
% 2.13/1.51  thf(func_def_68, type, sP1: $i > $i > $o).
% 2.13/1.51  thf(func_def_69, type, sP2: $i > $o).
% 2.13/1.51  thf(func_def_70, type, sP3: $i > $i > $o).
% 2.13/1.51  thf(func_def_71, type, sP4: $i > $i > $o).
% 2.13/1.51  thf(func_def_72, type, sK5: $i > $i > $i).
% 2.13/1.51  thf(func_def_75, type, sK8: $i > $o).
% 2.13/1.51  thf(func_def_76, type, sK9: ($i > $o) > $i).
% 2.13/1.51  thf(func_def_81, type, sK14: $i > $o).
% 2.13/1.51  thf(func_def_82, type, sK15: $i > $i).
% 2.13/1.51  thf(func_def_83, type, sK16: ($i > $o) > $i).
% 2.13/1.51  thf(func_def_84, type, sK17: $i > $i).
% 2.13/1.51  thf(func_def_90, type, sK23: $i > $i > $i).
% 2.13/1.51  thf(func_def_93, type, sK26: $i > $i > $i).
% 2.13/1.51  thf(func_def_94, type, sK27: $i > $i > $i).
% 2.13/1.51  thf(func_def_100, type, sK33: $i > $i).
% 2.13/1.51  thf(func_def_102, type, sK35: $i > $i).
% 2.13/1.51  thf(func_def_107, type, sK40: $i > $i > $i).
% 2.13/1.51  thf(func_def_108, type, sK41: $i > $i).
% 2.13/1.51  thf(func_def_119, type, sK52: $i > $o).
% 2.13/1.51  thf(func_def_121, type, sK54: $i > $i).
% 2.13/1.51  thf(func_def_124, type, sK57: $i > $i).
% 2.13/1.51  thf(func_def_128, type, sK61: $i > $i > $o).
% 2.13/1.51  thf(func_def_129, type, sK62: $i > $i).
% 2.13/1.51  thf(func_def_130, type, sK63: $i > $i).
% 2.13/1.51  thf(func_def_131, type, sK64: ($i > $i > $o) > $i > $i).
% 2.13/1.51  thf(func_def_132, type, sK65: ($i > $i > $o) > $i > $i).
% 2.13/1.51  thf(func_def_133, type, sK66: $i > ($i > $i > $o) > $i > $i).
% 2.13/1.51  thf(func_def_137, type, sK70: $i > $o).
% 2.13/1.51  thf(func_def_144, type, sK77: $o > $i > $i > $i).
% 2.13/1.51  thf(func_def_148, type, sK81: $i > $i > $i).
% 2.13/1.51  thf(func_def_149, type, sK82: $i > $i > $i).
% 2.13/1.51  thf(func_def_150, type, sK83: $i > $i > $i).
% 2.13/1.51  thf(func_def_151, type, sK84: $i > $i > $i).
% 2.13/1.51  thf(func_def_152, type, sK85: $i > $i > $i > $i).
% 2.13/1.51  thf(func_def_153, type, sK86: $i > $i).
% 2.13/1.51  thf(func_def_154, type, sK87: $i > $i).
% 2.13/1.51  thf(func_def_155, type, sK88: $i > $i).
% 2.13/1.51  thf(func_def_156, type, sK89: $i > $i).
% 2.13/1.51  thf(func_def_157, type, sK90: $i > $i > $i).
% 2.13/1.51  thf(func_def_158, type, sK91: $i > $i > $i > $i).
% 2.13/1.51  thf(func_def_159, type, sK92: $i > $i > $i > $i).
% 2.13/1.51  thf(func_def_160, type, sK93: $i > $i > $i).
% 2.13/1.51  thf(func_def_161, type, sK94: $i > $i > $i).
% 2.13/1.51  thf(func_def_163, type, sK96: $i > $i).
% 2.13/1.51  thf(func_def_164, type, sK97: $i > $i).
% 2.13/1.51  thf(func_def_165, type, sK98: $i > $i).
% 2.13/1.51  thf(func_def_166, type, sK99: $i > $i > $i).
% 2.13/1.51  thf(func_def_168, type, sK101: ($i > $o) > $i).
% 2.13/1.51  thf(func_def_169, type, sK102: $i > $o).
% 2.13/1.51  thf(func_def_170, type, sK103: $i > $i).
% 2.13/1.51  thf(func_def_172, type, sK105: $i > $i > $i).
% 2.13/1.51  thf(func_def_178, type, sK111: $i > $o).
% 2.13/1.51  thf(func_def_183, type, sK116: $i > $o).
% 2.13/1.51  thf(func_def_185, type, sK118: $i > $i).
% 2.13/1.51  thf(func_def_191, type, sK124: $i > $o).
% 2.13/1.51  thf(func_def_194, type, sK127: $i > $o).
% 2.13/1.51  thf(func_def_198, type, ph131: !>[X0: $tType]:(X0)).
% 2.13/1.51  thf(f759,plain,(
% 2.13/1.51    $false),
% 2.13/1.51    inference(avatar_sat_refutation,[status(thm)],[f726,f754,f758])).
% 2.13/1.51  thf(f758,plain,(
% 2.13/1.51    ~spl130_1),
% 2.13/1.51    inference(avatar_contradiction_clause,[status(thm)],[f757])).
% 2.13/1.51  thf(f757,plain,(
% 2.13/1.51    $false | ~spl130_1),
% 2.13/1.51    inference(trivial_inequality_removal,[status(thm)],[f756])).
% 2.13/1.51  thf(f756,plain,(
% 2.13/1.51    (sK11 != sK11) | ~spl130_1),
% 2.13/1.51    inference(superposition,[status(thm)],[f458,f718])).
% 2.13/1.51  thf(f718,plain,(
% 2.13/1.51    (sK12 = sK11) | ~spl130_1),
% 2.13/1.51    inference(avatar_component_clause,[status(thm)],[f716])).
% 2.13/1.51  thf(f716,definition,(
% 2.13/1.51    spl130_1 <=> (sK12 = sK11)),
% 2.13/1.51    introduced(definition,[new_symbols(naming,[spl130_1])],[avatar_definition])).
% 2.13/1.51  thf(f458,plain,(
% 2.13/1.51    (sK12 != sK11)),
% 2.13/1.51    inference(cnf_transformation,[status(thm)],[f216])).
% 2.13/1.51  thf(f216,plain,(
% 2.13/1.51    (powersetI = $true) & (exuE3e = $true) & (emptyinunitempty = $true) & (setextAx = $true) & (dsetconstrI = $true) & (setadjoinE = $true) & (foundationAx = $true) & (prop2setE = $true) & (nonemptyI1 = $true) & (dsetconstrER = $true) & (emptysetE = $true) & (setoftrueEq = $true) & (subPowSU = $true) & (emptyinPowerset = $true) & (setunionAx = $true) & (noeltsimpempty = $true) & (emptyI = $true) & (setext = $true) & (wellorderingAx = $true) & (notinemptyset = $true) & (replAx = $true) & (emptysetimpfalse = $true) & (setadjoinOr = $true) & (nonemptyI = $true) & (emptysetAx = $true) & ((sK12 != sK11) & ((in @ sK12 @ (setadjoin @ sK11 @ emptyset)) = $true)) & (omegaIndAx = $true) & (descrp = $true) & (omega0Ax = $true) & (exuE1 = $true) & (dsetconstrEL = $true) & (powersetAx = $true) & (setadjoinAx = $true) & (setunionE = $true) & (nonemptyE1 = $true) & (nonemptyImpWitness = $true) & (exuE2 = $true) & (setadjoinIL = $true) & (emptyInPowerset = $true) & (powersetE = $true) & (setbeta = $true) & (omegaSAx = $true) & (setadjoinIR = $true) & (setunionI = $true)),
% 2.13/1.51    inference(skolemisation,[status(esa),new_symbols(skolem,[sK11,sK12])],[f185,f215])).
% 2.13/1.51  thf(f215,plain,(
% 2.13/1.51    ? [X0 : $i,X1 : $i] : ((X0 != X1) & ((in @ X1 @ (setadjoin @ X0 @ emptyset)) = $true)) => ((sK12 != sK11) & ((in @ sK12 @ (setadjoin @ sK11 @ emptyset)) = $true))),
% 2.13/1.51    introduced(definition,[],[choice_axiom])).
% 2.13/1.51  thf(f185,plain,(
% 2.13/1.51    (powersetI = $true) & (exuE3e = $true) & (emptyinunitempty = $true) & (setextAx = $true) & (dsetconstrI = $true) & (setadjoinE = $true) & (foundationAx = $true) & (prop2setE = $true) & (nonemptyI1 = $true) & (dsetconstrER = $true) & (emptysetE = $true) & (setoftrueEq = $true) & (subPowSU = $true) & (emptyinPowerset = $true) & (setunionAx = $true) & (noeltsimpempty = $true) & (emptyI = $true) & (setext = $true) & (wellorderingAx = $true) & (notinemptyset = $true) & (replAx = $true) & (emptysetimpfalse = $true) & (setadjoinOr = $true) & (nonemptyI = $true) & (emptysetAx = $true) & ? [X0 : $i,X1 : $i] : ((X0 != X1) & ((in @ X1 @ (setadjoin @ X0 @ emptyset)) = $true)) & (omegaIndAx = $true) & (descrp = $true) & (omega0Ax = $true) & (exuE1 = $true) & (dsetconstrEL = $true) & (powersetAx = $true) & (setadjoinAx = $true) & (setunionE = $true) & (nonemptyE1 = $true) & (nonemptyImpWitness = $true) & (exuE2 = $true) & (setadjoinIL = $true) & (emptyInPowerset = $true) & (powersetE = $true) & (setbeta = $true) & (omegaSAx = $true) & (setadjoinIR = $true) & (setunionI = $true)),
% 2.13/1.51    inference(flattening,[status(thm)],[f184])).
% 2.13/1.51  thf(f184,plain,(
% 2.13/1.51    ((((((((((((((((((((((((((((((((((((((((((? [X0 : $i,X1 : $i] : ((X0 != X1) & ((in @ X1 @ (setadjoin @ X0 @ emptyset)) = $true)) & (nonemptyImpWitness = $true)) & (exuE2 = $true)) & (subPowSU = $true)) & (setunionE = $true)) & (setunionI = $true)) & (powersetE = $true)) & (emptyInPowerset = $true)) & (emptyinPowerset = $true)) & (powersetI = $true)) & (setoftrueEq = $true)) & (setadjoinOr = $true)) & (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)),
% 2.13/1.51    inference(ennf_transformation,[status(thm)],[f124])).
% 2.13/1.51  thf(f124,plain,(
% 2.13/1.51    ~((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) => ((setadjoinOr = $true) => ((setoftrueEq = $true) => ((powersetI = $true) => ((emptyinPowerset = $true) => ((emptyInPowerset = $true) => ((powersetE = $true) => ((setunionI = $true) => ((setunionE = $true) => ((subPowSU = $true) => ((exuE2 = $true) => ((nonemptyImpWitness = $true) => ! [X0 : $i,X1 : $i] : (((in @ X1 @ (setadjoin @ X0 @ emptyset)) = $true) => (X0 = X1)))))))))))))))))))))))))))))))))))))))))))))),
% 2.13/1.51    inference(fool_elimination,[status(thm)],[f123])).
% 2.13/1.51  thf(f123,plain,(
% 2.13/1.51    ~(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 => (setadjoinOr => (setoftrueEq => (powersetI => (emptyinPowerset => (emptyInPowerset => (powersetE => (setunionI => (setunionE => (subPowSU => (exuE2 => (nonemptyImpWitness => ! [X0 : $i,X1 : $i] : ((in @ X1 @ (setadjoin @ X0 @ emptyset)) => (X0 = X1)))))))))))))))))))))))))))))))))))))))))))))),
% 2.13/1.51    inference(rectify,[status(thm)],[f48])).
% 2.13/1.51  thf(f48,negated_conjecture,(
% 2.13/1.51    ~(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 => (setadjoinOr => (setoftrueEq => (powersetI => (emptyinPowerset => (emptyInPowerset => (powersetE => (setunionI => (setunionE => (subPowSU => (exuE2 => (nonemptyImpWitness => ! [X2 : $i,X1 : $i] : ((in @ X1 @ (setadjoin @ X2 @ emptyset)) => (X1 = X2)))))))))))))))))))))))))))))))))))))))))))))),
% 2.13/1.51    inference(negated_conjecture,[status(cth)],[f47])).
% 2.13/1.51  thf(f47,conjecture,(
% 2.13/1.51    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 => (setadjoinOr => (setoftrueEq => (powersetI => (emptyinPowerset => (emptyInPowerset => (powersetE => (setunionI => (setunionE => (subPowSU => (exuE2 => (nonemptyImpWitness => ! [X2 : $i,X1 : $i] : ((in @ X1 @ (setadjoin @ X2 @ emptyset)) => (X1 = X2))))))))))))))))))))))))))))))))))))))))))))),
% 2.13/1.51    file('/export/starexec/sandbox/tmp/tmp.p9jyL4yqSG/DTF2THF_5545.p',uniqinunit)).
% 2.13/1.51  thf(f754,plain,(
% 2.13/1.51    ~spl130_2),
% 2.13/1.51    inference(avatar_contradiction_clause,[status(thm)],[f753])).
% 2.13/1.51  thf(f753,plain,(
% 2.13/1.51    $false | ~spl130_2),
% 2.13/1.51    inference(trivial_inequality_removal,[status(thm)],[f752])).
% 2.13/1.51  thf(f752,plain,(
% 2.13/1.51    ($true != $true) | ~spl130_2),
% 2.13/1.51    inference(superposition,[status(thm)],[f740,f464])).
% 2.13/1.51  thf(f464,plain,(
% 2.13/1.51    (notinemptyset = $true)),
% 2.13/1.51    inference(cnf_transformation,[status(thm)],[f216])).
% 2.13/1.51  thf(f740,plain,(
% 2.13/1.51    (notinemptyset != $true) | ~spl130_2),
% 2.13/1.51    inference(trivial_inequality_removal,[status(thm)],[f737])).
% 2.13/1.51  thf(f737,plain,(
% 2.13/1.51    (notinemptyset != $true) | ($true != $true) | ~spl130_2),
% 2.13/1.51    inference(superposition,[status(thm)],[f485,f722])).
% 2.13/1.51  thf(f722,plain,(
% 2.13/1.51    ((in @ sK12 @ emptyset) = $true) | ~spl130_2),
% 2.13/1.51    inference(avatar_component_clause,[status(thm)],[f720])).
% 2.13/1.51  thf(f720,definition,(
% 2.13/1.51    spl130_2 <=> ((in @ sK12 @ emptyset) = $true)),
% 2.13/1.51    introduced(definition,[new_symbols(naming,[spl130_2])],[avatar_definition])).
% 2.13/1.51  thf(f485,plain,(
% 2.13/1.51    ( ! [X0 : $i] : (((in @ X0 @ emptyset) != $true) | (notinemptyset != $true)) )),
% 2.13/1.51    inference(cnf_transformation,[status(thm)],[f220])).
% 2.13/1.51  thf(f220,plain,(
% 2.13/1.51    (! [X0 : $i] : ((in @ X0 @ emptyset) != $true) | (notinemptyset != $true)) & ((notinemptyset = $true) | ((in @ sK13 @ emptyset) = $true))),
% 2.13/1.51    inference(skolemisation,[status(esa),new_symbols(skolem,[sK13])],[f218,f219])).
% 2.13/1.51  thf(f219,plain,(
% 2.13/1.51    ? [X1 : $i] : ((in @ X1 @ emptyset) = $true) => ((in @ sK13 @ emptyset) = $true)),
% 2.13/1.51    introduced(definition,[],[choice_axiom])).
% 2.13/1.51  thf(f218,plain,(
% 2.13/1.51    (! [X0 : $i] : ((in @ X0 @ emptyset) != $true) | (notinemptyset != $true)) & ((notinemptyset = $true) | ? [X1 : $i] : ((in @ X1 @ emptyset) = $true))),
% 2.13/1.51    inference(rectify,[status(thm)],[f217])).
% 2.13/1.51  thf(f217,plain,(
% 2.13/1.51    (! [X0 : $i] : ((in @ X0 @ emptyset) != $true) | (notinemptyset != $true)) & ((notinemptyset = $true) | ? [X0 : $i] : ((in @ X0 @ emptyset) = $true))),
% 2.13/1.51    inference(nnf_transformation,[status(thm)],[f144])).
% 2.13/1.51  thf(f144,plain,(
% 2.13/1.51    ! [X0 : $i] : ((in @ X0 @ emptyset) != $true) <=> (notinemptyset = $true)),
% 2.13/1.51    inference(flattening,[status(thm)],[f100])).
% 2.13/1.51  thf(f100,plain,(
% 2.13/1.51    ! [X0 : $i] : ~((in @ X0 @ emptyset) = $true) <=> (notinemptyset = $true)),
% 2.13/1.51    inference(fool_elimination,[status(thm)],[f99])).
% 2.13/1.51  thf(f99,plain,(
% 2.13/1.51    (! [X0 : $i] : ~(in @ X0 @ emptyset) = notinemptyset)),
% 2.13/1.51    inference(rectify,[status(thm)],[f22])).
% 2.13/1.51  thf(f22,axiom,(
% 2.13/1.51    (! [X1 : $i] : ~(in @ X1 @ emptyset) = notinemptyset)),
% 2.13/1.51    file('/export/starexec/sandbox/tmp/tmp.p9jyL4yqSG/DTF2THF_5545.p',notinemptyset)).
% 2.13/1.51  thf(f726,plain,(
% 2.13/1.51    spl130_1 | spl130_2),
% 2.13/1.51    inference(avatar_split_clause,[status(thm)],[f725,f720,f716])).
% 2.13/1.51  thf(f725,plain,(
% 2.13/1.51    ((in @ sK12 @ emptyset) = $true) | (sK12 = sK11)),
% 2.13/1.51    inference(trivial_inequality_removal,[status(thm)],[f724])).
% 2.13/1.51  thf(f724,plain,(
% 2.13/1.51    ($true != $true) | ((in @ sK12 @ emptyset) = $true) | (sK12 = sK11)),
% 2.13/1.51    inference(forward_demodulation,[status(thm)],[f711,f450])).
% 2.13/1.51  thf(f450,plain,(
% 2.13/1.51    (setadjoinAx = $true)),
% 2.13/1.51    inference(cnf_transformation,[status(thm)],[f216])).
% 2.13/1.51  thf(f711,plain,(
% 2.13/1.51    (setadjoinAx != $true) | (sK12 = sK11) | ((in @ sK12 @ emptyset) = $true)),
% 2.13/1.51    inference(trivial_inequality_removal,[status(thm)],[f706])).
% 2.13/1.51  thf(f706,plain,(
% 2.13/1.51    ($true != $true) | (sK12 = sK11) | (setadjoinAx != $true) | ((in @ sK12 @ emptyset) = $true)),
% 2.13/1.51    inference(superposition,[status(thm)],[f659,f457])).
% 2.13/1.51  thf(f457,plain,(
% 2.13/1.51    ((in @ sK12 @ (setadjoin @ sK11 @ emptyset)) = $true)),
% 2.13/1.51    inference(cnf_transformation,[status(thm)],[f216])).
% 2.13/1.51  thf(f659,plain,(
% 2.13/1.51    ( ! [X2 : $i,X0 : $i,X1 : $i] : (((in @ X1 @ (setadjoin @ X2 @ X0)) != $true) | ((in @ X1 @ X0) = $true) | (X1 = X2) | (setadjoinAx != $true)) )),
% 2.13/1.51    inference(cnf_transformation,[status(thm)],[f407])).
% 2.13/1.51  thf(f407,plain,(
% 2.13/1.51    (! [X0 : $i,X1 : $i,X2 : $i] : ((((in @ X1 @ (setadjoin @ X2 @ X0)) = $true) | ((X1 != X2) & ((in @ X1 @ X0) != $true))) & ((X1 = X2) | ((in @ X1 @ X0) = $true) | ((in @ X1 @ (setadjoin @ X2 @ X0)) != $true))) | (setadjoinAx != $true)) & ((setadjoinAx = $true) | ((((sK120 != sK121) & ((in @ sK120 @ sK119) != $true)) | ((in @ sK120 @ (setadjoin @ sK121 @ sK119)) != $true)) & ((sK120 = sK121) | ((in @ sK120 @ sK119) = $true) | ((in @ sK120 @ (setadjoin @ sK121 @ sK119)) = $true))))),
% 2.13/1.51    inference(skolemisation,[status(esa),new_symbols(skolem,[sK119,sK120,sK121])],[f405,f406])).
% 2.13/1.51  thf(f406,plain,(
% 2.13/1.51    ? [X3 : $i,X4 : $i,X5 : $i] : ((((X4 != X5) & ((in @ X4 @ X3) != $true)) | ((in @ X4 @ (setadjoin @ X5 @ X3)) != $true)) & ((X4 = X5) | ((in @ X4 @ X3) = $true) | ((in @ X4 @ (setadjoin @ X5 @ X3)) = $true))) => ((((sK120 != sK121) & ((in @ sK120 @ sK119) != $true)) | ((in @ sK120 @ (setadjoin @ sK121 @ sK119)) != $true)) & ((sK120 = sK121) | ((in @ sK120 @ sK119) = $true) | ((in @ sK120 @ (setadjoin @ sK121 @ sK119)) = $true)))),
% 2.13/1.51    introduced(definition,[],[choice_axiom])).
% 2.13/1.51  thf(f405,plain,(
% 2.13/1.51    (! [X0 : $i,X1 : $i,X2 : $i] : ((((in @ X1 @ (setadjoin @ X2 @ X0)) = $true) | ((X1 != X2) & ((in @ X1 @ X0) != $true))) & ((X1 = X2) | ((in @ X1 @ X0) = $true) | ((in @ X1 @ (setadjoin @ X2 @ X0)) != $true))) | (setadjoinAx != $true)) & ((setadjoinAx = $true) | ? [X3 : $i,X4 : $i,X5 : $i] : ((((X4 != X5) & ((in @ X4 @ X3) != $true)) | ((in @ X4 @ (setadjoin @ X5 @ X3)) != $true)) & ((X4 = X5) | ((in @ X4 @ X3) = $true) | ((in @ X4 @ (setadjoin @ X5 @ X3)) = $true))))),
% 2.13/1.51    inference(rectify,[status(thm)],[f404])).
% 2.13/1.51  thf(f404,plain,(
% 2.13/1.51    (! [X0 : $i,X1 : $i,X2 : $i] : ((((in @ X1 @ (setadjoin @ X2 @ X0)) = $true) | ((X1 != X2) & ((in @ X1 @ X0) != $true))) & ((X1 = X2) | ((in @ X1 @ X0) = $true) | ((in @ X1 @ (setadjoin @ X2 @ X0)) != $true))) | (setadjoinAx != $true)) & ((setadjoinAx = $true) | ? [X0 : $i,X1 : $i,X2 : $i] : ((((X1 != X2) & ((in @ X1 @ X0) != $true)) | ((in @ X1 @ (setadjoin @ X2 @ X0)) != $true)) & ((X1 = X2) | ((in @ X1 @ X0) = $true) | ((in @ X1 @ (setadjoin @ X2 @ X0)) = $true))))),
% 2.13/1.51    inference(flattening,[status(thm)],[f403])).
% 2.13/1.51  thf(f403,plain,(
% 2.13/1.51    (! [X0 : $i,X1 : $i,X2 : $i] : ((((in @ X1 @ (setadjoin @ X2 @ X0)) = $true) | ((X1 != X2) & ((in @ X1 @ X0) != $true))) & (((X1 = X2) | ((in @ X1 @ X0) = $true)) | ((in @ X1 @ (setadjoin @ X2 @ X0)) != $true))) | (setadjoinAx != $true)) & ((setadjoinAx = $true) | ? [X0 : $i,X1 : $i,X2 : $i] : ((((X1 != X2) & ((in @ X1 @ X0) != $true)) | ((in @ X1 @ (setadjoin @ X2 @ X0)) != $true)) & (((X1 = X2) | ((in @ X1 @ X0) = $true)) | ((in @ X1 @ (setadjoin @ X2 @ X0)) = $true))))),
% 2.13/1.51    inference(nnf_transformation,[status(thm)],[f64])).
% 2.13/1.51  thf(f64,plain,(
% 2.13/1.51    ! [X0 : $i,X1 : $i,X2 : $i] : (((in @ X1 @ (setadjoin @ X2 @ X0)) = $true) <=> ((X1 = X2) | ((in @ X1 @ X0) = $true))) <=> (setadjoinAx = $true)),
% 2.13/1.51    inference(fool_elimination,[status(thm)],[f63])).
% 2.13/1.51  thf(f63,plain,(
% 2.13/1.51    (! [X0 : $i,X1 : $i,X2 : $i] : ((in @ X1 @ (setadjoin @ X2 @ X0)) <=> ((in @ X1 @ X0) | (X1 = X2))) = setadjoinAx)),
% 2.13/1.51    inference(rectify,[status(thm)],[f4])).
% 2.13/1.51  thf(f4,axiom,(
% 2.13/1.51    (! [X3 : $i,X2 : $i,X1 : $i] : ((in @ X2 @ (setadjoin @ X1 @ X3)) <=> ((in @ X2 @ X3) | (X1 = X2))) = setadjoinAx)),
% 2.13/1.51    file('/export/starexec/sandbox/tmp/tmp.p9jyL4yqSG/DTF2THF_5545.p',setadjoinAx)).
% 2.13/1.51  % SZS output end Proof for DTF2THF_5545
% 2.13/1.51  % (5684)------------------------------
% 2.13/1.51  % (5684)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.13/1.51  % (5684)Termination reason: Refutation
% 2.13/1.51  
% 2.13/1.51  % (5684)Memory used [KB]: 6268
% 2.13/1.51  % (5684)Time elapsed: 0.019 s
% 2.13/1.51  % (5684)Instructions burned: 50 (million)
% 2.13/1.51  % (5684)------------------------------
% 2.13/1.51  % (5684)------------------------------
% 2.13/1.51  % (5661)Success in time 0.102 s
%------------------------------------------------------------------------------