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DT2H2X---1.9.5.THM-Ref.s

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%------------------------------------------------------------------------------
% File     : DT2H2X---1.9.5
% Problem  : SEU543^1 : TPTP v9.2.1. Released v3.7.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : /export/starexec/sandbox2/solver/bin/run_DT2H2X /export/starexec/sandbox2/benchmark/theBenchmark.p 300

% Computer : n020.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 09:35:11 AM UTC 2026

% Result   : Theorem 2.13s 1.44s
% Output   : Refutation 2.13s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   11
%            Number of leaves      :    3
% Syntax   : Number of formulae    :   16 (   4 unt;   0 typ;   0 def)
%            Number of atoms       : 1192 ( 334 equ;   0 cnn)
%            Maximal formula atoms :   63 (  74 avg)
%            Number of connectives :  611 (  29   ~;   7   |; 194   &;  74   @)
%                                         (   0 <=>; 307  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   69 (  34 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    8 (   8   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :  143 ( 140 usr;  63 con; 0-3 aty)
%            Number of variables   :   37 (   0   ^;  21   !;  16   ?;  37   :)

% 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_69,type,
    set2prop: $i > $o ).

thf(func_def_85,type,
    sP1: $i > $i > $o ).

thf(func_def_86,type,
    sP2: $i > $o ).

thf(func_def_87,type,
    sP3: $i > $i > $o ).

thf(func_def_88,type,
    sP4: $i > $i > $o ).

thf(func_def_92,type,
    sK8: $i > $i ).

thf(func_def_100,type,
    sK16: $i > $i > $i ).

thf(func_def_101,type,
    sK17: $i > $i > $i ).

thf(func_def_103,type,
    sK19: $i > $i ).

thf(func_def_105,type,
    sK21: $i > $o ).

thf(func_def_107,type,
    sK23: ( $i > $o ) > $i > $i ).

thf(func_def_113,type,
    sK29: $i > $o ).

thf(func_def_118,type,
    sK34: $i > $i > $i ).

thf(func_def_122,type,
    sK38: $i > $o ).

thf(func_def_123,type,
    sK39: $i > $i ).

thf(func_def_124,type,
    sK40: ( $i > $o ) > $i ).

thf(func_def_126,type,
    sK42: $i > $o ).

thf(func_def_127,type,
    sK43: $i > $i ).

thf(func_def_128,type,
    sK44: ( $i > $o ) > $i ).

thf(func_def_129,type,
    sK45: $i > $i ).

thf(func_def_131,type,
    sK47: $i > $i ).

thf(func_def_135,type,
    sK51: $i > $i > $i ).

thf(func_def_139,type,
    sK55: $i > $i > $o ).

thf(func_def_141,type,
    sK57: $i > $i ).

thf(func_def_142,type,
    sK58: $i > $i ).

thf(func_def_143,type,
    sK59: $i > ( $i > $i > $o ) > $i ).

thf(func_def_144,type,
    sK60: $i > ( $i > $i > $o ) > $i ).

thf(func_def_145,type,
    sK61: $i > $i > ( $i > $i > $o ) > $i ).

thf(func_def_147,type,
    sK63: $i > $o ).

thf(func_def_149,type,
    sK65: ( $i > $o ) > $i > $i ).

thf(func_def_152,type,
    sK68: $i > $o ).

thf(func_def_158,type,
    sK74: $i > $i > $i ).

thf(func_def_167,type,
    sK83: $i > $i ).

thf(func_def_172,type,
    sK88: $i > $o ).

thf(func_def_175,type,
    sK91: $i > $i > $i ).

thf(func_def_176,type,
    sK92: $i > $o ).

thf(func_def_179,type,
    sK95: $i > $i ).

thf(func_def_187,type,
    sK103: $i > ( $i > $o ) > $i ).

thf(func_def_188,type,
    sK104: $i > $o ).

thf(func_def_197,type,
    sK113: $o > $i > $i > $i ).

thf(func_def_199,type,
    sK115: $i > $o ).

thf(func_def_201,type,
    sK117: ( $i > $o ) > $i ).

thf(func_def_202,type,
    sK118: $i > $o ).

thf(func_def_203,type,
    sK119: ( $i > $o ) > $i > $i ).

thf(func_def_205,type,
    sK121: $i > $o ).

thf(func_def_208,type,
    sK124: $i > $o ).

thf(func_def_210,type,
    sK126: ( $i > $o ) > $i > $i ).

thf(func_def_213,type,
    sK129: $i > $o ).

thf(func_def_221,type,
    sK137: $i > $i ).

thf(func_def_231,type,
    sK147: $i > $o ).

thf(func_def_235,type,
    sK151: $i > $o ).

thf(func_def_236,type,
    sK152: $i > $i > $i ).

thf(func_def_237,type,
    sK153: $i > $i > $i ).

thf(func_def_238,type,
    sK154: $i > $i > $i ).

thf(func_def_239,type,
    sK155: $i > $i > $i ).

thf(func_def_240,type,
    sK156: $i > $i > $i > $i ).

thf(func_def_241,type,
    sK157: $i > $i ).

thf(func_def_242,type,
    sK158: $i > $i ).

thf(func_def_243,type,
    sK159: $i > $i ).

thf(func_def_244,type,
    sK160: $i > $i ).

thf(func_def_245,type,
    sK161: $i > $i > $i > $i ).

thf(func_def_246,type,
    sK162: $i > $i > $i > $i ).

thf(func_def_247,type,
    sK163: $i > $i > $i ).

thf(func_def_248,type,
    sK164: $i > $i > $i ).

thf(func_def_249,type,
    sK165: $i > $i > $i ).

thf(func_def_250,type,
    sK166: $i > $i ).

thf(func_def_251,type,
    sK167: $i > $i > $i ).

thf(func_def_253,type,
    sK169: $i > $i ).

thf(func_def_254,type,
    sK170: $i > $i ).

thf(func_def_256,type,
    ph172: 
      !>[X0: $tType] : X0 ).

thf(f1299,plain,
    $false,
    inference(subsumption_resolution,[status(thm)],[f1271,f623]) ).

thf(f623,plain,
    ( $true
   != ( sK29 @ sK31 ) ),
    inference(cnf_transformation,[status(thm)],[f314]) ).

thf(f314,plain,
    ( ( setoftrueEq = $true )
    & ( quantDeMorgan2 = $true )
    & ( setadjoinIL = $true )
    & ( emptysetimpfalse = $true )
    & ( vacuousDall = $true )
    & ( upairsetE = $true )
    & ( powersetE = $true )
    & ( dsetconstrEL = $true )
    & ( emptyinunitempty = $true )
    & ( setadjoinAx = $true )
    & ( nonemptyE1 = $true )
    & ( exuE1 = $true )
    & ( setunionI = $true )
    & ( setadjoinIR = $true )
    & ( prop2setE = $true )
    & ( setadjoinE = $true )
    & ( foundationAx = $true )
    & ( emptysetAx = $true )
    & ( emptyE1 = $true )
    & ( upairsetIL = $true )
    & ( setunionAx = $true )
    & ( setadjoinOr = $true )
    & ( setext = $true )
    & ( exuE2 = $true )
    & ( emptyinPowerset = $true )
    & ( quantDeMorgan4 = $true )
    & ( dsetconstrER = $true )
    & ( eqinunit = $true )
    & ( quantDeMorgan3 = $true )
    & ( nonemptyImpWitness = $true )
    & ( descrp = $true )
    & ( omega0Ax = $true )
    & ( noeltsimpempty = $true )
    & ( quantDeMorgan1 = $true )
    & ( replAx = $true )
    & ( setextAx = $true )
    & ( emptyI = $true )
    & ( nonemptyI = $true )
    & ( $true
      = ( in @ sK31 @ sK30 ) )
    & ( $true
     != ( sK29 @ sK31 ) )
    & ! [X3: $i] :
        ( ( $true
         != ( in @ X3 @ sK30 ) )
        | ( $true
          = ( sK29 @ X3 ) ) )
    & ( nonemptyI1 = $true )
    & ( prop2setI = $true )
    & ( setbeta = $true )
    & ( notdexE = $true )
    & ( setunionE = $true )
    & ( omegaSAx = $true )
    & ( emptysetE = $true )
    & ( dsetconstrI = $true )
    & ( omegaIndAx = $true )
    & ( subPowSU = $true )
    & ( powersetAx = $true )
    & ( powersetI = $true )
    & ( emptyInPowerset = $true )
    & ( exuE3e = $true )
    & ( singletonsswitch = $true )
    & ( uniqinunit = $true )
    & ( notinemptyset = $true )
    & ( wellorderingAx = $true )
    & ( upairsetIR = $true )
    & ( notinsingleton = $true )
    & ( prop2set2propI = $true ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK29,sK30,sK31])],[f222,f313,f312]) ).

thf(f312,plain,
    ( ? [X0: $i > $o,X1: $i] :
        ( ? [X2: $i] :
            ( ( $true
              = ( in @ X2 @ X1 ) )
            & ( ( X0 @ X2 )
             != $true ) )
        & ! [X3: $i] :
            ( ( $true
             != ( in @ X3 @ X1 ) )
            | ( $true
              = ( X0 @ X3 ) ) ) )
   => ( ? [X2: $i] :
          ( ( $true
            = ( in @ X2 @ sK30 ) )
          & ( $true
           != ( sK29 @ X2 ) ) )
      & ! [X3: $i] :
          ( ( $true
           != ( in @ X3 @ sK30 ) )
          | ( $true
            = ( sK29 @ X3 ) ) ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f313,plain,
    ( ? [X2: $i] :
        ( ( $true
          = ( in @ X2 @ sK30 ) )
        & ( $true
         != ( sK29 @ X2 ) ) )
   => ( ( $true
        = ( in @ sK31 @ sK30 ) )
      & ( $true
       != ( sK29 @ sK31 ) ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f222,plain,
    ( ( setoftrueEq = $true )
    & ( quantDeMorgan2 = $true )
    & ( setadjoinIL = $true )
    & ( emptysetimpfalse = $true )
    & ( vacuousDall = $true )
    & ( upairsetE = $true )
    & ( powersetE = $true )
    & ( dsetconstrEL = $true )
    & ( emptyinunitempty = $true )
    & ( setadjoinAx = $true )
    & ( nonemptyE1 = $true )
    & ( exuE1 = $true )
    & ( setunionI = $true )
    & ( setadjoinIR = $true )
    & ( prop2setE = $true )
    & ( setadjoinE = $true )
    & ( foundationAx = $true )
    & ( emptysetAx = $true )
    & ( emptyE1 = $true )
    & ( upairsetIL = $true )
    & ( setunionAx = $true )
    & ( setadjoinOr = $true )
    & ( setext = $true )
    & ( exuE2 = $true )
    & ( emptyinPowerset = $true )
    & ( quantDeMorgan4 = $true )
    & ( dsetconstrER = $true )
    & ( eqinunit = $true )
    & ( quantDeMorgan3 = $true )
    & ( nonemptyImpWitness = $true )
    & ( descrp = $true )
    & ( omega0Ax = $true )
    & ( noeltsimpempty = $true )
    & ( quantDeMorgan1 = $true )
    & ( replAx = $true )
    & ( setextAx = $true )
    & ( emptyI = $true )
    & ( nonemptyI = $true )
    & ? [X0: $i > $o,X1: $i] :
        ( ? [X2: $i] :
            ( ( $true
              = ( in @ X2 @ X1 ) )
            & ( ( X0 @ X2 )
             != $true ) )
        & ! [X3: $i] :
            ( ( $true
             != ( in @ X3 @ X1 ) )
            | ( $true
              = ( X0 @ X3 ) ) ) )
    & ( nonemptyI1 = $true )
    & ( prop2setI = $true )
    & ( setbeta = $true )
    & ( notdexE = $true )
    & ( setunionE = $true )
    & ( omegaSAx = $true )
    & ( emptysetE = $true )
    & ( dsetconstrI = $true )
    & ( omegaIndAx = $true )
    & ( subPowSU = $true )
    & ( powersetAx = $true )
    & ( powersetI = $true )
    & ( emptyInPowerset = $true )
    & ( exuE3e = $true )
    & ( singletonsswitch = $true )
    & ( uniqinunit = $true )
    & ( notinemptyset = $true )
    & ( wellorderingAx = $true )
    & ( upairsetIR = $true )
    & ( notinsingleton = $true )
    & ( prop2set2propI = $true ) ),
    inference(flattening,[status(thm)],[f221]) ).

thf(f221,plain,
    ( ? [X0: $i > $o,X1: $i] :
        ( ? [X2: $i] :
            ( ( $true
              = ( in @ X2 @ X1 ) )
            & ( ( X0 @ X2 )
             != $true ) )
        & ! [X3: $i] :
            ( ( $true
             != ( in @ X3 @ X1 ) )
            | ( $true
              = ( X0 @ X3 ) ) ) )
    & ( notdexE = $true )
    & ( prop2set2propI = $true )
    & ( prop2setI = $true )
    & ( quantDeMorgan4 = $true )
    & ( quantDeMorgan3 = $true )
    & ( quantDeMorgan2 = $true )
    & ( quantDeMorgan1 = $true )
    & ( vacuousDall = $true )
    & ( emptyE1 = $true )
    & ( upairsetIR = $true )
    & ( upairsetIL = $true )
    & ( upairsetE = $true )
    & ( singletonsswitch = $true )
    & ( eqinunit = $true )
    & ( notinsingleton = $true )
    & ( uniqinunit = $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)],[f185]) ).

thf(f185,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 )
                                                                                         => ( ( uniqinunit = $true )
                                                                                           => ( ( notinsingleton = $true )
                                                                                             => ( ( eqinunit = $true )
                                                                                               => ( ( singletonsswitch = $true )
                                                                                                 => ( ( upairsetE = $true )
                                                                                                   => ( ( upairsetIL = $true )
                                                                                                     => ( ( upairsetIR = $true )
                                                                                                       => ( ( emptyE1 = $true )
                                                                                                         => ( ( vacuousDall = $true )
                                                                                                           => ( ( quantDeMorgan1 = $true )
                                                                                                             => ( ( quantDeMorgan2 = $true )
                                                                                                               => ( ( quantDeMorgan3 = $true )
                                                                                                                 => ( ( quantDeMorgan4 = $true )
                                                                                                                   => ( ( prop2setI = $true )
                                                                                                                     => ( ( prop2set2propI = $true )
                                                                                                                       => ( ( notdexE = $true )
                                                                                                                         => ! [X0: $i > $o,X1: $i] :
                                                                                                                              ( ~ ! [X2: $i] :
                                                                                                                                    ( ( $true
                                                                                                                                      = ( in @ X2 @ X1 ) )
                                                                                                                                   => ( ( X0 @ X2 )
                                                                                                                                      = $true ) )
                                                                                                                             => ? [X3: $i] :
                                                                                                                                  ( ( $true
                                                                                                                                   != ( X0 @ X3 ) )
                                                                                                                                  & ( $true
                                                                                                                                    = ( in @ X3 @ X1 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    inference(flattening,[status(thm)],[f110]) ).

thf(f110,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 )
                                                                                         => ( ( uniqinunit = $true )
                                                                                           => ( ( notinsingleton = $true )
                                                                                             => ( ( eqinunit = $true )
                                                                                               => ( ( singletonsswitch = $true )
                                                                                                 => ( ( upairsetE = $true )
                                                                                                   => ( ( upairsetIL = $true )
                                                                                                     => ( ( upairsetIR = $true )
                                                                                                       => ( ( emptyE1 = $true )
                                                                                                         => ( ( vacuousDall = $true )
                                                                                                           => ( ( quantDeMorgan1 = $true )
                                                                                                             => ( ( quantDeMorgan2 = $true )
                                                                                                               => ( ( quantDeMorgan3 = $true )
                                                                                                                 => ( ( quantDeMorgan4 = $true )
                                                                                                                   => ( ( prop2setI = $true )
                                                                                                                     => ( ( prop2set2propI = $true )
                                                                                                                       => ( ( notdexE = $true )
                                                                                                                         => ! [X0: $i > $o,X1: $i] :
                                                                                                                              ( ~ ! [X2: $i] :
                                                                                                                                    ( ( $true
                                                                                                                                      = ( in @ X2 @ X1 ) )
                                                                                                                                   => ( ( X0 @ X2 )
                                                                                                                                      = $true ) )
                                                                                                                             => ? [X3: $i] :
                                                                                                                                  ( ( $true
                                                                                                                                    = ( in @ X3 @ X1 ) )
                                                                                                                                  & ( $true
                                                                                                                                   != ( X0 @ X3 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    inference(fool_elimination,[status(thm)],[f109]) ).

thf(f109,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
                                                                                         => ( uniqinunit
                                                                                           => ( notinsingleton
                                                                                             => ( eqinunit
                                                                                               => ( singletonsswitch
                                                                                                 => ( upairsetE
                                                                                                   => ( upairsetIL
                                                                                                     => ( upairsetIR
                                                                                                       => ( emptyE1
                                                                                                         => ( vacuousDall
                                                                                                           => ( quantDeMorgan1
                                                                                                             => ( quantDeMorgan2
                                                                                                               => ( quantDeMorgan3
                                                                                                                 => ( quantDeMorgan4
                                                                                                                   => ( prop2setI
                                                                                                                     => ( prop2set2propI
                                                                                                                       => ( notdexE
                                                                                                                         => ! [X0: $i > $o,X1: $i] :
                                                                                                                              ( ~ ! [X2: $i] :
                                                                                                                                    ( ( in @ X2 @ X1 )
                                                                                                                                   => ( X0 @ X2 ) )
                                                                                                                             => ? [X3: $i] :
                                                                                                                                  ( ( in @ X3 @ X1 )
                                                                                                                                  & ~ ( X0 @ X3 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    inference(rectify,[status(thm)],[f63]) ).

thf(f63,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
                                                                                         => ( uniqinunit
                                                                                           => ( notinsingleton
                                                                                             => ( eqinunit
                                                                                               => ( singletonsswitch
                                                                                                 => ( upairsetE
                                                                                                   => ( upairsetIL
                                                                                                     => ( upairsetIR
                                                                                                       => ( emptyE1
                                                                                                         => ( vacuousDall
                                                                                                           => ( quantDeMorgan1
                                                                                                             => ( quantDeMorgan2
                                                                                                               => ( quantDeMorgan3
                                                                                                                 => ( quantDeMorgan4
                                                                                                                   => ( prop2setI
                                                                                                                     => ( prop2set2propI
                                                                                                                       => ( notdexE
                                                                                                                         => ! [X0: $i > $o,X3: $i] :
                                                                                                                              ( ~ ! [X1: $i] :
                                                                                                                                    ( ( in @ X1 @ X3 )
                                                                                                                                   => ( X0 @ X1 ) )
                                                                                                                             => ? [X1: $i] :
                                                                                                                                  ( ( in @ X1 @ X3 )
                                                                                                                                  & ~ ( X0 @ X1 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    inference(negated_conjecture,[status(cth)],[f62]) ).

thf(f62,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
                                                                                       => ( uniqinunit
                                                                                         => ( notinsingleton
                                                                                           => ( eqinunit
                                                                                             => ( singletonsswitch
                                                                                               => ( upairsetE
                                                                                                 => ( upairsetIL
                                                                                                   => ( upairsetIR
                                                                                                     => ( emptyE1
                                                                                                       => ( vacuousDall
                                                                                                         => ( quantDeMorgan1
                                                                                                           => ( quantDeMorgan2
                                                                                                             => ( quantDeMorgan3
                                                                                                               => ( quantDeMorgan4
                                                                                                                 => ( prop2setI
                                                                                                                   => ( prop2set2propI
                                                                                                                     => ( notdexE
                                                                                                                       => ! [X0: $i > $o,X3: $i] :
                                                                                                                            ( ~ ! [X1: $i] :
                                                                                                                                  ( ( in @ X1 @ X3 )
                                                                                                                                 => ( X0 @ X1 ) )
                                                                                                                           => ? [X1: $i] :
                                                                                                                                ( ( in @ X1 @ X3 )
                                                                                                                                & ~ ( X0 @ X1 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    file('/export/starexec/sandbox2/tmp/tmp.lFFNRSEeHn/DTF2THF_17621.p',notdallE) ).

thf(f1271,plain,
    ( $true
    = ( sK29 @ sK31 ) ),
    inference(trivial_inequality_removal,[status(thm)],[f1260]) ).

thf(f1260,plain,
    ( ( $true != $true )
    | ( $true
      = ( sK29 @ sK31 ) ) ),
    inference(superposition,[status(thm)],[f622,f624]) ).

thf(f624,plain,
    ( $true
    = ( in @ sK31 @ sK30 ) ),
    inference(cnf_transformation,[status(thm)],[f314]) ).

thf(f622,plain,
    ! [X3: $i] :
      ( ( $true
       != ( in @ X3 @ sK30 ) )
      | ( $true
        = ( sK29 @ X3 ) ) ),
    inference(cnf_transformation,[status(thm)],[f314]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem  : SEU543^1 : TPTP v9.2.1. Released v3.7.0.
% 0.12/0.13  % Command  : /export/starexec/sandbox2/solver/bin/run_DT2H2X /export/starexec/sandbox2/benchmark/theBenchmark.p 300
% 0.17/0.34  % Computer : n020.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 12:26:27 EST 2026
% 0.17/0.35  % CPUTime  : 
% 0.17/0.35  Running /export/starexec/sandbox2/solver/bin/run_DT2H2X /export/starexec/sandbox2/benchmark/theBenchmark.p 300
% 0.30/0.47  ---- Original DTF file ---
% 0.30/0.47  thf(spec,logic,$$dhol).
% 0.30/0.47  %------------------------------------------------------------------------------
% 0.30/0.47  % File     : SEU543^1 : TPTP v9.2.1. Released v3.7.0.
% 0.30/0.47  % Domain   : Set Theory
% 0.30/0.47  % Problem  : Preliminary Notions - Negated Quantifiers
% 0.30/0.47  % Version  : Especial.
% 0.30/0.47  % English  : (! A:i.! phi:i>o.~(! x:i.in x A -> phi x) ->
% 0.30/0.47  %            (? x:i.in x A & ~(phi x)))
% 0.30/0.47  
% 0.30/0.47  % Refs     : [Bro08] Brown (2008), Email to G. Sutcliffe
% 0.30/0.47  % Source   : [Bro08]
% 0.30/0.47  % Names    : ZFC045g [Bro08]
% 0.30/0.47  
% 0.30/0.47  % Status   : Theorem
% 0.30/0.47  % Rating   : 0.11 v9.1.0, 0.12 v9.0.0, 0.30 v8.2.0, 0.15 v8.1.0, 0.00 v7.4.0, 0.11 v7.2.0, 0.00 v7.1.0, 0.25 v7.0.0, 0.14 v6.4.0, 0.17 v6.3.0, 0.20 v6.2.0, 0.14 v6.1.0, 0.29 v5.5.0, 0.17 v5.4.0, 0.20 v5.3.0, 0.40 v5.1.0, 0.60 v5.0.0, 0.40 v4.1.0, 0.33 v4.0.1, 0.67 v4.0.0, 0.00 v3.7.0
% 0.30/0.47  % Syntax   : Number of formulae    :  133 (  61 unt;  71 typ;  61 def)
% 0.30/0.47  %            Number of atoms       :  334 (  80 equ;   0 cnn)
% 0.30/0.47  %            Maximal formula atoms :   61 (   5 avg)
% 0.30/0.47  %            Number of connectives :  561 (  21   ~;   5   |;  26   &; 356   @)
% 0.30/0.47  %                                         (   8 <=>; 145  =>;   0  <=;   0 <~>)
% 0.30/0.47  %            Maximal formula depth :   68 (   2 avg)
% 0.30/0.47  %            Number of types       :    2 (   0 usr)
% 0.30/0.47  %            Number of type conns  :   36 (  36   >;   0   *;   0   +;   0  <<)
% 0.30/0.47  %            Number of symbols     :   74 (  71 usr;  63 con; 0-2 aty)
% 0.30/0.47  %            Number of variables   :  183 (  15   ^; 143   !;  25   ?; 183   :)
% 0.30/0.47  % SPC      : TH0_THM_EQU_NAR
% 0.30/0.47  
% 0.30/0.47  % Comments : http://mathgate.info/detsetitem.php?id=120
% 0.30/0.47  %------------------------------------------------------------------------------
% 0.30/0.47  thf(in_type,type,
% 0.30/0.47      in: $i > $i > $o ).
% 0.30/0.47  
% 0.30/0.47  thf(exu_type,type,
% 0.30/0.47      exu: ( $i > $o ) > $o ).
% 0.30/0.47  
% 0.30/0.47  thf(exu,definition,
% 0.30/0.47      ( exu
% 0.30/0.47      = ( ^ [Xphi: $i > $o] :
% 0.30/0.47          ? [Xx: $i] :
% 0.30/0.47            ( ( Xphi @ Xx )
% 0.30/0.47            & ! [Xy: $i] :
% 0.30/0.47                ( ( Xphi @ Xy )
% 0.30/0.47               => ( Xx = Xy ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(setextAx_type,type,
% 0.30/0.47      setextAx: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(setextAx,definition,
% 0.30/0.47      ( setextAx
% 0.30/0.47      = ( ! [A: $i,B: $i] :
% 0.30/0.47            ( ! [Xx: $i] :
% 0.30/0.47                ( ( in @ Xx @ A )
% 0.30/0.47              <=> ( in @ Xx @ B ) )
% 0.30/0.47           => ( A = B ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(emptyset_type,type,
% 0.30/0.47      emptyset: $i ).
% 0.30/0.47  
% 0.30/0.47  thf(emptysetAx_type,type,
% 0.30/0.47      emptysetAx: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(emptysetAx,definition,
% 0.30/0.47      ( emptysetAx
% 0.30/0.47      = ( ! [Xx: $i] :
% 0.30/0.47            ~ ( in @ Xx @ emptyset ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(setadjoin_type,type,
% 0.30/0.47      setadjoin: $i > $i > $i ).
% 0.30/0.47  
% 0.30/0.47  thf(setadjoinAx_type,type,
% 0.30/0.47      setadjoinAx: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(setadjoinAx,definition,
% 0.30/0.47      ( setadjoinAx
% 0.30/0.47      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 0.30/0.47            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 0.30/0.47          <=> ( ( Xy = Xx )
% 0.30/0.47              | ( in @ Xy @ A ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(powerset_type,type,
% 0.30/0.47      powerset: $i > $i ).
% 0.30/0.47  
% 0.30/0.47  thf(powersetAx_type,type,
% 0.30/0.47      powersetAx: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(powersetAx,definition,
% 0.30/0.47      ( powersetAx
% 0.30/0.47      = ( ! [A: $i,B: $i] :
% 0.30/0.47            ( ( in @ B @ ( powerset @ A ) )
% 0.30/0.47          <=> ! [Xx: $i] :
% 0.30/0.47                ( ( in @ Xx @ B )
% 0.30/0.47               => ( in @ Xx @ A ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(setunion_type,type,
% 0.30/0.47      setunion: $i > $i ).
% 0.30/0.47  
% 0.30/0.47  thf(setunionAx_type,type,
% 0.30/0.47      setunionAx: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(setunionAx,definition,
% 0.30/0.47      ( setunionAx
% 0.30/0.47      = ( ! [A: $i,Xx: $i] :
% 0.30/0.47            ( ( in @ Xx @ ( setunion @ A ) )
% 0.30/0.47          <=> ? [B: $i] :
% 0.30/0.47                ( ( in @ Xx @ B )
% 0.30/0.47                & ( in @ B @ A ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(omega_type,type,
% 0.30/0.47      omega: $i ).
% 0.30/0.47  
% 0.30/0.47  thf(omega0Ax_type,type,
% 0.30/0.47      omega0Ax: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(omega0Ax,definition,
% 0.30/0.47      ( omega0Ax
% 0.30/0.47      = ( in @ emptyset @ omega ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(omegaSAx_type,type,
% 0.30/0.47      omegaSAx: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(omegaSAx,definition,
% 0.30/0.47      ( omegaSAx
% 0.30/0.47      = ( ! [Xx: $i] :
% 0.30/0.47            ( ( in @ Xx @ omega )
% 0.30/0.47           => ( in @ ( setadjoin @ Xx @ Xx ) @ omega ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(omegaIndAx_type,type,
% 0.30/0.47      omegaIndAx: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(omegaIndAx,definition,
% 0.30/0.47      ( omegaIndAx
% 0.30/0.47      = ( ! [A: $i] :
% 0.30/0.47            ( ( ( in @ emptyset @ A )
% 0.30/0.47              & ! [Xx: $i] :
% 0.30/0.47                  ( ( ( in @ Xx @ omega )
% 0.30/0.47                    & ( in @ Xx @ A ) )
% 0.30/0.47                 => ( in @ ( setadjoin @ Xx @ Xx ) @ A ) ) )
% 0.30/0.47           => ! [Xx: $i] :
% 0.30/0.47                ( ( in @ Xx @ omega )
% 0.30/0.47               => ( in @ Xx @ A ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(replAx_type,type,
% 0.30/0.47      replAx: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(replAx,definition,
% 0.30/0.47      ( replAx
% 0.30/0.47      = ( ! [Xphi: $i > $i > $o,A: $i] :
% 0.30/0.47            ( ! [Xx: $i] :
% 0.30/0.47                ( ( in @ Xx @ A )
% 0.30/0.47               => ( exu
% 0.30/0.47                  @ ^ [Xy: $i] : ( Xphi @ Xx @ Xy ) ) )
% 0.30/0.47           => ? [B: $i] :
% 0.30/0.47              ! [Xx: $i] :
% 0.30/0.47                ( ( in @ Xx @ B )
% 0.30/0.47              <=> ? [Xy: $i] :
% 0.30/0.47                    ( ( in @ Xy @ A )
% 0.30/0.47                    & ( Xphi @ Xy @ Xx ) ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(foundationAx_type,type,
% 0.30/0.47      foundationAx: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(foundationAx,definition,
% 0.30/0.47      ( foundationAx
% 0.30/0.47      = ( ! [A: $i] :
% 0.30/0.47            ( ? [Xx: $i] : ( in @ Xx @ A )
% 0.30/0.47           => ? [B: $i] :
% 0.30/0.47                ( ( in @ B @ A )
% 0.30/0.47                & ~ ? [Xx: $i] :
% 0.30/0.47                      ( ( in @ Xx @ B )
% 0.30/0.47                      & ( in @ Xx @ A ) ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(wellorderingAx_type,type,
% 0.30/0.47      wellorderingAx: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(wellorderingAx,definition,
% 0.30/0.47      ( wellorderingAx
% 0.30/0.47      = ( ! [A: $i] :
% 0.30/0.47          ? [B: $i] :
% 0.30/0.47            ( ! [C: $i] :
% 0.30/0.47                ( ( in @ C @ B )
% 0.30/0.47               => ! [Xx: $i] :
% 0.30/0.47                    ( ( in @ Xx @ C )
% 0.30/0.47                   => ( in @ Xx @ A ) ) )
% 0.30/0.47            & ! [Xx: $i,Xy: $i] :
% 0.30/0.47                ( ( ( in @ Xx @ A )
% 0.30/0.47                  & ( in @ Xy @ A ) )
% 0.30/0.47               => ( ! [C: $i] :
% 0.30/0.47                      ( ( in @ C @ B )
% 0.30/0.47                     => ( ( in @ Xx @ C )
% 0.30/0.47                      <=> ( in @ Xy @ C ) ) )
% 0.30/0.47                 => ( Xx = Xy ) ) )
% 0.30/0.47            & ! [C: $i,D: $i] :
% 0.30/0.47                ( ( ( in @ C @ B )
% 0.30/0.47                  & ( in @ D @ B ) )
% 0.30/0.47               => ( ! [Xx: $i] :
% 0.30/0.47                      ( ( in @ Xx @ C )
% 0.30/0.47                     => ( in @ Xx @ D ) )
% 0.30/0.47                  | ! [Xx: $i] :
% 0.30/0.47                      ( ( in @ Xx @ D )
% 0.30/0.47                     => ( in @ Xx @ C ) ) ) )
% 0.30/0.47            & ! [C: $i] :
% 0.30/0.47                ( ( ! [Xx: $i] :
% 0.30/0.47                      ( ( in @ Xx @ C )
% 0.30/0.47                     => ( in @ Xx @ A ) )
% 0.30/0.47                  & ? [Xx: $i] : ( in @ Xx @ C ) )
% 0.30/0.47               => ? [D: $i,Xx: $i] :
% 0.30/0.47                    ( ( in @ D @ B )
% 0.30/0.47                    & ( in @ Xx @ C )
% 0.30/0.47                    & ~ ? [Xy: $i] :
% 0.30/0.47                          ( ( in @ Xy @ D )
% 0.30/0.47                          & ( in @ Xy @ C ) )
% 0.30/0.47                    & ! [E: $i] :
% 0.30/0.47                        ( ( in @ E @ B )
% 0.30/0.47                       => ( ! [Xy: $i] :
% 0.30/0.47                              ( ( in @ Xy @ E )
% 0.30/0.47                             => ( in @ Xy @ D ) )
% 0.30/0.47                          | ( in @ Xx @ E ) ) ) ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(descr_type,type,
% 0.30/0.47      descr: ( $i > $o ) > $i ).
% 0.30/0.47  
% 0.30/0.47  thf(descrp_type,type,
% 0.30/0.47      descrp: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(descrp,definition,
% 0.30/0.47      ( descrp
% 0.30/0.47      = ( ! [Xphi: $i > $o] :
% 0.30/0.47            ( ( exu
% 0.30/0.47              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.30/0.47           => ( Xphi
% 0.30/0.47              @ ( descr
% 0.30/0.47                @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(dsetconstr_type,type,
% 0.30/0.47      dsetconstr: $i > ( $i > $o ) > $i ).
% 0.30/0.47  
% 0.30/0.47  thf(dsetconstrI_type,type,
% 0.30/0.47      dsetconstrI: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(dsetconstrI,definition,
% 0.30/0.47      ( dsetconstrI
% 0.30/0.47      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.30/0.47            ( ( in @ Xx @ A )
% 0.30/0.47           => ( ( Xphi @ Xx )
% 0.30/0.47             => ( in @ Xx
% 0.30/0.47                @ ( dsetconstr @ A
% 0.30/0.47                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(dsetconstrEL_type,type,
% 0.30/0.47      dsetconstrEL: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(dsetconstrEL,definition,
% 0.30/0.47      ( dsetconstrEL
% 0.30/0.47      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.30/0.47            ( ( in @ Xx
% 0.30/0.47              @ ( dsetconstr @ A
% 0.30/0.47                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 0.30/0.47           => ( in @ Xx @ A ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(dsetconstrER_type,type,
% 0.30/0.47      dsetconstrER: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(dsetconstrER,definition,
% 0.30/0.47      ( dsetconstrER
% 0.30/0.47      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.30/0.47            ( ( in @ Xx
% 0.30/0.47              @ ( dsetconstr @ A
% 0.30/0.47                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 0.30/0.47           => ( Xphi @ Xx ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(exuE1_type,type,
% 0.30/0.47      exuE1: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(exuE1,definition,
% 0.30/0.47      ( exuE1
% 0.30/0.47      = ( ! [Xphi: $i > $o] :
% 0.30/0.47            ( ( exu
% 0.30/0.47              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.30/0.47           => ? [Xx: $i] :
% 0.30/0.47                ( ( Xphi @ Xx )
% 0.30/0.47                & ! [Xy: $i] :
% 0.30/0.47                    ( ( Xphi @ Xy )
% 0.30/0.47                   => ( Xx = Xy ) ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(prop2set_type,type,
% 0.30/0.47      prop2set: $o > $i ).
% 0.30/0.47  
% 0.30/0.47  thf(prop2setE_type,type,
% 0.30/0.47      prop2setE: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(prop2setE,definition,
% 0.30/0.47      ( prop2setE
% 0.30/0.47      = ( ! [Xphi: $o,Xx: $i] :
% 0.30/0.47            ( ( in @ Xx @ ( prop2set @ Xphi ) )
% 0.30/0.47           => Xphi ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(emptysetE_type,type,
% 0.30/0.47      emptysetE: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(emptysetE,definition,
% 0.30/0.47      ( emptysetE
% 0.30/0.47      = ( ! [Xx: $i] :
% 0.30/0.47            ( ( in @ Xx @ emptyset )
% 0.30/0.47           => ! [Xphi: $o] : Xphi ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(emptysetimpfalse_type,type,
% 0.30/0.47      emptysetimpfalse: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(emptysetimpfalse,definition,
% 0.30/0.47      ( emptysetimpfalse
% 0.30/0.47      = ( ! [Xx: $i] :
% 0.30/0.47            ( ( in @ Xx @ emptyset )
% 0.30/0.47           => $false ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(notinemptyset_type,type,
% 0.30/0.47      notinemptyset: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(notinemptyset,definition,
% 0.30/0.47      ( notinemptyset
% 0.30/0.47      = ( ! [Xx: $i] :
% 0.30/0.47            ~ ( in @ Xx @ emptyset ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(exuE3e_type,type,
% 0.30/0.47      exuE3e: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(exuE3e,definition,
% 0.30/0.47      ( exuE3e
% 0.30/0.47      = ( ! [Xphi: $i > $o] :
% 0.30/0.47            ( ( exu
% 0.30/0.47              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.30/0.47           => ? [Xx: $i] : ( Xphi @ Xx ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(setext_type,type,
% 0.30/0.47      setext: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(setext,definition,
% 0.30/0.47      ( setext
% 0.30/0.47      = ( ! [A: $i,B: $i] :
% 0.30/0.47            ( ! [Xx: $i] :
% 0.30/0.47                ( ( in @ Xx @ A )
% 0.30/0.47               => ( in @ Xx @ B ) )
% 0.30/0.47           => ( ! [Xx: $i] :
% 0.30/0.47                  ( ( in @ Xx @ B )
% 0.30/0.47                 => ( in @ Xx @ A ) )
% 0.30/0.47             => ( A = B ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(emptyI_type,type,
% 0.30/0.47      emptyI: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(emptyI,definition,
% 0.30/0.47      ( emptyI
% 0.30/0.47      = ( ! [A: $i] :
% 0.30/0.47            ( ! [Xx: $i] :
% 0.30/0.47                ~ ( in @ Xx @ A )
% 0.30/0.47           => ( A = emptyset ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(noeltsimpempty_type,type,
% 0.30/0.47      noeltsimpempty: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(noeltsimpempty,definition,
% 0.30/0.47      ( noeltsimpempty
% 0.30/0.47      = ( ! [A: $i] :
% 0.30/0.47            ( ! [Xx: $i] :
% 0.30/0.47                ~ ( in @ Xx @ A )
% 0.30/0.47           => ( A = emptyset ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(setbeta_type,type,
% 0.30/0.47      setbeta: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(setbeta,definition,
% 0.30/0.47      ( setbeta
% 0.30/0.47      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.30/0.47            ( ( in @ Xx @ A )
% 0.30/0.47           => ( ( in @ Xx
% 0.30/0.47                @ ( dsetconstr @ A
% 0.30/0.47                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 0.30/0.47            <=> ( Xphi @ Xx ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(nonempty_type,type,
% 0.30/0.47      nonempty: $i > $o ).
% 0.30/0.47  
% 0.30/0.47  thf(nonempty,definition,
% 0.30/0.47      ( nonempty
% 0.30/0.47      = ( ^ [Xx: $i] : ( Xx != emptyset ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(nonemptyE1_type,type,
% 0.30/0.47      nonemptyE1: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(nonemptyE1,definition,
% 0.30/0.47      ( nonemptyE1
% 0.30/0.47      = ( ! [A: $i] :
% 0.30/0.47            ( ( nonempty @ A )
% 0.30/0.47           => ? [Xx: $i] : ( in @ Xx @ A ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(nonemptyI_type,type,
% 0.30/0.47      nonemptyI: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(nonemptyI,definition,
% 0.30/0.47      ( nonemptyI
% 0.30/0.47      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.30/0.47            ( ( in @ Xx @ A )
% 0.30/0.47           => ( ( Xphi @ Xx )
% 0.30/0.47             => ( nonempty
% 0.30/0.47                @ ( dsetconstr @ A
% 0.30/0.47                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(nonemptyI1_type,type,
% 0.30/0.47      nonemptyI1: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(nonemptyI1,definition,
% 0.30/0.47      ( nonemptyI1
% 0.30/0.47      = ( ! [A: $i] :
% 0.30/0.47            ( ? [Xx: $i] : ( in @ Xx @ A )
% 0.30/0.47           => ( nonempty @ A ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(setadjoinIL_type,type,
% 0.30/0.47      setadjoinIL: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(setadjoinIL,definition,
% 0.30/0.47      ( setadjoinIL
% 0.30/0.47      = ( ! [Xx: $i,Xy: $i] : ( in @ Xx @ ( setadjoin @ Xx @ Xy ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(emptyinunitempty_type,type,
% 0.30/0.47      emptyinunitempty: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(emptyinunitempty,definition,
% 0.30/0.47      ( emptyinunitempty
% 0.30/0.47      = ( in @ emptyset @ ( setadjoin @ emptyset @ emptyset ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(setadjoinIR_type,type,
% 0.30/0.47      setadjoinIR: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(setadjoinIR,definition,
% 0.30/0.47      ( setadjoinIR
% 0.30/0.47      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 0.30/0.47            ( ( in @ Xy @ A )
% 0.30/0.47           => ( in @ Xy @ ( setadjoin @ Xx @ A ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(setadjoinE_type,type,
% 0.30/0.47      setadjoinE: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(setadjoinE,definition,
% 0.30/0.47      ( setadjoinE
% 0.30/0.47      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 0.30/0.47            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 0.30/0.47           => ! [Xphi: $o] :
% 0.30/0.47                ( ( ( Xy = Xx )
% 0.30/0.47                 => Xphi )
% 0.30/0.47               => ( ( ( in @ Xy @ A )
% 0.30/0.47                   => Xphi )
% 0.30/0.47                 => Xphi ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(setadjoinOr_type,type,
% 0.30/0.47      setadjoinOr: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(setadjoinOr,definition,
% 0.30/0.47      ( setadjoinOr
% 0.30/0.47      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 0.30/0.47            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 0.30/0.47           => ( ( Xy = Xx )
% 0.30/0.47              | ( in @ Xy @ A ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(setoftrueEq_type,type,
% 0.30/0.47      setoftrueEq: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(setoftrueEq,definition,
% 0.30/0.47      ( setoftrueEq
% 0.30/0.47      = ( ! [A: $i] :
% 0.30/0.47            ( ( dsetconstr @ A
% 0.30/0.47              @ ^ [Xx: $i] : $true )
% 0.30/0.47            = A ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(powersetI_type,type,
% 0.30/0.47      powersetI: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(powersetI,definition,
% 0.30/0.47      ( powersetI
% 0.30/0.47      = ( ! [A: $i,B: $i] :
% 0.30/0.47            ( ! [Xx: $i] :
% 0.30/0.47                ( ( in @ Xx @ B )
% 0.30/0.47               => ( in @ Xx @ A ) )
% 0.30/0.47           => ( in @ B @ ( powerset @ A ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(emptyinPowerset_type,type,
% 0.30/0.47      emptyinPowerset: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(emptyinPowerset,definition,
% 0.30/0.47      ( emptyinPowerset
% 0.30/0.47      = ( ! [A: $i] : ( in @ emptyset @ ( powerset @ A ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(emptyInPowerset_type,type,
% 0.30/0.47      emptyInPowerset: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(emptyInPowerset,definition,
% 0.30/0.47      ( emptyInPowerset
% 0.30/0.47      = ( ! [A: $i] : ( in @ emptyset @ ( powerset @ A ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(powersetE_type,type,
% 0.30/0.47      powersetE: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(powersetE,definition,
% 0.30/0.47      ( powersetE
% 0.30/0.47      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.30/0.47            ( ( in @ B @ ( powerset @ A ) )
% 0.30/0.47           => ( ( in @ Xx @ B )
% 0.30/0.47             => ( in @ Xx @ A ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(setunionI_type,type,
% 0.30/0.47      setunionI: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(setunionI,definition,
% 0.30/0.47      ( setunionI
% 0.30/0.47      = ( ! [A: $i,Xx: $i,B: $i] :
% 0.30/0.47            ( ( in @ Xx @ B )
% 0.30/0.47           => ( ( in @ B @ A )
% 0.30/0.47             => ( in @ Xx @ ( setunion @ A ) ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(setunionE_type,type,
% 0.30/0.47      setunionE: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(setunionE,definition,
% 0.30/0.47      ( setunionE
% 0.30/0.47      = ( ! [A: $i,Xx: $i] :
% 0.30/0.47            ( ( in @ Xx @ ( setunion @ A ) )
% 0.30/0.47           => ! [Xphi: $o] :
% 0.30/0.47                ( ! [B: $i] :
% 0.30/0.47                    ( ( in @ Xx @ B )
% 0.30/0.47                   => ( ( in @ B @ A )
% 0.30/0.47                     => Xphi ) )
% 0.30/0.47               => Xphi ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(subPowSU_type,type,
% 0.30/0.47      subPowSU: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(subPowSU,definition,
% 0.30/0.47      ( subPowSU
% 0.30/0.47      = ( ! [A: $i,Xx: $i] :
% 0.30/0.47            ( ( in @ Xx @ A )
% 0.30/0.47           => ( in @ Xx @ ( powerset @ ( setunion @ A ) ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(exuE2_type,type,
% 0.30/0.47      exuE2: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(exuE2,definition,
% 0.30/0.47      ( exuE2
% 0.30/0.47      = ( ! [Xphi: $i > $o] :
% 0.30/0.47            ( ( exu
% 0.30/0.47              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.30/0.47           => ? [Xx: $i] :
% 0.30/0.47              ! [Xy: $i] :
% 0.30/0.47                ( ( Xphi @ Xy )
% 0.30/0.47              <=> ( Xy = Xx ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(nonemptyImpWitness_type,type,
% 0.30/0.47      nonemptyImpWitness: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(nonemptyImpWitness,definition,
% 0.30/0.47      ( nonemptyImpWitness
% 0.30/0.47      = ( ! [A: $i] :
% 0.30/0.47            ( ( nonempty @ A )
% 0.30/0.47           => ? [Xx: $i] :
% 0.30/0.47                ( ( in @ Xx @ A )
% 0.30/0.47                & $true ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(uniqinunit_type,type,
% 0.30/0.47      uniqinunit: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(uniqinunit,definition,
% 0.30/0.47      ( uniqinunit
% 0.30/0.47      = ( ! [Xx: $i,Xy: $i] :
% 0.30/0.47            ( ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) )
% 0.30/0.47           => ( Xx = Xy ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(notinsingleton_type,type,
% 0.30/0.47      notinsingleton: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(notinsingleton,definition,
% 0.30/0.47      ( notinsingleton
% 0.30/0.47      = ( ! [Xx: $i,Xy: $i] :
% 0.30/0.47            ( ( Xx != Xy )
% 0.30/0.47           => ~ ( in @ Xy @ ( setadjoin @ Xx @ emptyset ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(eqinunit_type,type,
% 0.30/0.47      eqinunit: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(eqinunit,definition,
% 0.30/0.47      ( eqinunit
% 0.30/0.47      = ( ! [Xx: $i,Xy: $i] :
% 0.30/0.47            ( ( Xx = Xy )
% 0.30/0.47           => ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(singletonsswitch_type,type,
% 0.30/0.47      singletonsswitch: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(singletonsswitch,definition,
% 0.30/0.47      ( singletonsswitch
% 0.30/0.47      = ( ! [Xx: $i,Xy: $i] :
% 0.30/0.47            ( ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) )
% 0.30/0.47           => ( in @ Xy @ ( setadjoin @ Xx @ emptyset ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(upairsetE_type,type,
% 0.30/0.47      upairsetE: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(upairsetE,definition,
% 0.30/0.47      ( upairsetE
% 0.30/0.47      = ( ! [Xx: $i,Xy: $i,Xz: $i] :
% 0.30/0.47            ( ( in @ Xz @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) )
% 0.30/0.47           => ( ( Xz = Xx )
% 0.30/0.47              | ( Xz = Xy ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(upairsetIL_type,type,
% 0.30/0.47      upairsetIL: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(upairsetIL,definition,
% 0.30/0.47      ( upairsetIL
% 0.30/0.47      = ( ! [Xx: $i,Xy: $i] : ( in @ Xx @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(upairsetIR_type,type,
% 0.30/0.47      upairsetIR: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(upairsetIR,definition,
% 0.30/0.47      ( upairsetIR
% 0.30/0.47      = ( ! [Xx: $i,Xy: $i] : ( in @ Xy @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(emptyE1_type,type,
% 0.30/0.47      emptyE1: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(emptyE1,definition,
% 0.30/0.47      ( emptyE1
% 0.30/0.47      = ( ! [A: $i,Xphi: $i > $o] :
% 0.30/0.47            ( ? [Xx: $i] :
% 0.30/0.47                ( ( in @ Xx @ A )
% 0.30/0.47                & ( Xphi @ Xx ) )
% 0.30/0.47           => ( ( ( dsetconstr @ A
% 0.30/0.47                  @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.30/0.47                = emptyset )
% 0.30/0.47             => $false ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(vacuousDall_type,type,
% 0.30/0.47      vacuousDall: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(vacuousDall,definition,
% 0.30/0.47      ( vacuousDall
% 0.30/0.47      = ( ! [Xphi: $i > $o,Xx: $i] :
% 0.30/0.47            ( ( in @ Xx @ emptyset )
% 0.30/0.47           => ( Xphi @ Xx ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(quantDeMorgan1_type,type,
% 0.30/0.47      quantDeMorgan1: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(quantDeMorgan1,definition,
% 0.30/0.47      ( quantDeMorgan1
% 0.30/0.47      = ( ! [A: $i,Xphi: $i > $o] :
% 0.30/0.47            ( ~ ! [Xx: $i] :
% 0.30/0.47                  ( ( in @ Xx @ A )
% 0.30/0.47                 => ( Xphi @ Xx ) )
% 0.30/0.47           => ? [Xx: $i] :
% 0.30/0.47                ( ( in @ Xx @ A )
% 0.30/0.47                & ~ ( Xphi @ Xx ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(quantDeMorgan2_type,type,
% 0.30/0.47      quantDeMorgan2: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(quantDeMorgan2,definition,
% 0.30/0.47      ( quantDeMorgan2
% 0.30/0.47      = ( ! [A: $i,Xphi: $i > $o] :
% 0.30/0.47            ( ! [Xx: $i] :
% 0.30/0.47                ( ( in @ Xx @ A )
% 0.30/0.47               => ~ ( Xphi @ Xx ) )
% 0.30/0.47           => ~ ? [Xx: $i] :
% 0.30/0.47                  ( ( in @ Xx @ A )
% 0.30/0.47                  & ( Xphi @ Xx ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(quantDeMorgan3_type,type,
% 0.30/0.47      quantDeMorgan3: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(quantDeMorgan3,definition,
% 0.30/0.47      ( quantDeMorgan3
% 0.30/0.47      = ( ! [A: $i,Xphi: $i > $o] :
% 0.30/0.47            ( ~ ? [Xx: $i] :
% 0.30/0.47                  ( ( in @ Xx @ A )
% 0.30/0.47                  & ( Xphi @ Xx ) )
% 0.30/0.47           => ! [Xx: $i] :
% 0.30/0.47                ( ( in @ Xx @ A )
% 0.30/0.47               => ~ ( Xphi @ Xx ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(quantDeMorgan4_type,type,
% 0.30/0.47      quantDeMorgan4: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(quantDeMorgan4,definition,
% 0.30/0.47      ( quantDeMorgan4
% 0.30/0.47      = ( ! [A: $i,Xphi: $i > $o] :
% 0.30/0.47            ( ? [Xx: $i] :
% 0.30/0.47                ( ( in @ Xx @ A )
% 0.30/0.47                & ~ ( Xphi @ Xx ) )
% 0.30/0.47           => ~ ! [Xx: $i] :
% 0.30/0.47                  ( ( in @ Xx @ A )
% 0.30/0.47                 => ( Xphi @ Xx ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(prop2setI_type,type,
% 0.30/0.47      prop2setI: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(prop2setI,definition,
% 0.30/0.47      ( prop2setI
% 0.30/0.47      = ( ! [Xphi: $o] :
% 0.30/0.47            ( Xphi
% 0.30/0.47           => ( in @ emptyset @ ( prop2set @ Xphi ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(set2prop_type,type,
% 0.30/0.47      set2prop: $i > $o ).
% 0.30/0.47  
% 0.30/0.47  thf(prop2set2propI_type,type,
% 0.30/0.47      prop2set2propI: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(prop2set2propI,definition,
% 0.30/0.47      ( prop2set2propI
% 0.30/0.47      = ( ! [Xphi: $o] :
% 0.30/0.47            ( Xphi
% 0.30/0.47           => ( set2prop @ ( prop2set @ Xphi ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(notdexE_type,type,
% 0.30/0.47      notdexE: $o ).
% 0.30/0.47  
% 0.30/0.47  thf(notdexE,definition,
% 0.30/0.47      ( notdexE
% 0.30/0.47      = ( ! [A: $i,Xphi: $i > $o] :
% 0.30/0.47            ( ~ ? [Xx: $i] :
% 0.30/0.47                  ( ( in @ Xx @ A )
% 0.30/0.47                  & ( Xphi @ Xx ) )
% 0.30/0.47           => ! [Xx: $i] :
% 0.30/0.47                ( ( in @ Xx @ A )
% 0.30/0.47               => ~ ( Xphi @ Xx ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  thf(notdallE,conjecture,
% 0.30/0.47      ( setextAx
% 0.30/0.47     => ( emptysetAx
% 0.30/0.47       => ( setadjoinAx
% 0.30/0.47         => ( powersetAx
% 0.30/0.47           => ( setunionAx
% 0.30/0.47             => ( omega0Ax
% 0.30/0.47               => ( omegaSAx
% 0.30/0.47                 => ( omegaIndAx
% 0.30/0.47                   => ( replAx
% 0.30/0.47                     => ( foundationAx
% 0.30/0.47                       => ( wellorderingAx
% 0.30/0.47                         => ( descrp
% 0.30/0.47                           => ( dsetconstrI
% 0.30/0.47                             => ( dsetconstrEL
% 0.30/0.47                               => ( dsetconstrER
% 0.30/0.47                                 => ( exuE1
% 0.30/0.47                                   => ( prop2setE
% 0.30/0.47                                     => ( emptysetE
% 0.30/0.47                                       => ( emptysetimpfalse
% 0.30/0.47                                         => ( notinemptyset
% 0.30/0.47                                           => ( exuE3e
% 0.30/0.47                                             => ( setext
% 0.30/0.47                                               => ( emptyI
% 0.30/0.47                                                 => ( noeltsimpempty
% 0.30/0.47                                                   => ( setbeta
% 0.30/0.47                                                     => ( nonemptyE1
% 0.30/0.47                                                       => ( nonemptyI
% 0.30/0.47                                                         => ( nonemptyI1
% 0.30/0.47                                                           => ( setadjoinIL
% 0.30/0.47                                                             => ( emptyinunitempty
% 0.30/0.47                                                               => ( setadjoinIR
% 0.30/0.47                                                                 => ( setadjoinE
% 0.30/0.47                                                                   => ( setadjoinOr
% 0.30/0.47                                                                     => ( setoftrueEq
% 0.30/0.47                                                                       => ( powersetI
% 0.30/0.47                                                                         => ( emptyinPowerset
% 0.30/0.47                                                                           => ( emptyInPowerset
% 0.30/0.47                                                                             => ( powersetE
% 0.30/0.47                                                                               => ( setunionI
% 0.30/0.47                                                                                 => ( setunionE
% 0.30/0.47                                                                                   => ( subPowSU
% 0.30/0.47                                                                                     => ( exuE2
% 0.30/0.47                                                                                       => ( nonemptyImpWitness
% 0.30/0.47                                                                                         => ( uniqinunit
% 0.30/0.47                                                                                           => ( notinsingleton
% 0.30/0.47                                                                                             => ( eqinunit
% 0.30/0.47                                                                                               => ( singletonsswitch
% 0.30/0.47                                                                                                 => ( upairsetE
% 0.30/0.47                                                                                                   => ( upairsetIL
% 0.30/0.47                                                                                                     => ( upairsetIR
% 0.30/0.47                                                                                                       => ( emptyE1
% 0.30/0.47                                                                                                         => ( vacuousDall
% 0.30/0.47                                                                                                           => ( quantDeMorgan1
% 0.30/0.47                                                                                                             => ( quantDeMorgan2
% 0.30/0.47                                                                                                               => ( quantDeMorgan3
% 0.30/0.47                                                                                                                 => ( quantDeMorgan4
% 0.30/0.47                                                                                                                   => ( prop2setI
% 0.30/0.47                                                                                                                     => ( prop2set2propI
% 0.30/0.47                                                                                                                       => ( notdexE
% 0.30/0.47                                                                                                                         => ! [A: $i,Xphi: $i > $o] :
% 0.30/0.47                                                                                                                              ( ~ ! [Xx: $i] :
% 0.30/0.47                                                                                                                                    ( ( in @ Xx @ A )
% 0.30/0.47                                                                                                                                   => ( Xphi @ Xx ) )
% 0.30/0.47                                                                                                                             => ? [Xx: $i] :
% 0.30/0.47                                                                                                                                  ( ( in @ Xx @ A )
% 0.30/0.47                                                                                                                                  & ~ ( Xphi @ Xx ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ).
% 0.30/0.47  
% 0.30/0.47  %------------------------------------------------------------------------------
% 0.30/0.47  ------------------------
% 1.91/1.38  ---- Embedded in THF ---
% 1.91/1.38  %%% This output was generated by embedproblem, version 1.9.5 (library version 1.9).
% 1.91/1.38  %%% Generated on Tue Feb 24 12:26:28 EST 2026
% 1.91/1.38  %%% using '$$dhol' embedding, version 1.3.0.
% 1.91/1.38  %%% Logic specification used:
% 1.91/1.38  %%% thf(spec, logic, $$dhol).
% 1.91/1.38  
% 1.91/1.38  % SZS output start ListOfTHF for /export/starexec/sandbox2/tmp/tmp.lFFNRSEeHn/DTF2DTF17621.p
% See solution above
% 1.91/1.38  ------------------------
% 1.91/1.39  ---- Cleaned THF ---
% 1.91/1.39  thf(in_type,type,
% 1.91/1.39      in: $i > $i > $o ).
% 1.91/1.39  
% 1.91/1.39  thf(exu_type,type,
% 1.91/1.39      exu: ( $i > $o ) > $o ).
% 1.91/1.39  
% 1.91/1.39  thf(exu,definition,
% 1.91/1.39      ( exu
% 1.91/1.39      = ( ^ [Xphi: $i > $o] :
% 1.91/1.39          ? [Xx: $i] :
% 1.91/1.39            ( ( Xphi @ Xx )
% 1.91/1.39            & ! [Xy: $i] :
% 1.91/1.39                ( ( Xphi @ Xy )
% 1.91/1.39               => ( Xx = Xy ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(setextAx_type,type,
% 1.91/1.39      setextAx: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(setextAx,definition,
% 1.91/1.39      ( setextAx
% 1.91/1.39      = ( ! [A: $i,B: $i] :
% 1.91/1.39            ( ! [Xx: $i] :
% 1.91/1.39                ( ( in @ Xx @ A )
% 1.91/1.39              <=> ( in @ Xx @ B ) )
% 1.91/1.39           => ( A = B ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(emptyset_type,type,
% 1.91/1.39      emptyset: $i ).
% 1.91/1.39  
% 1.91/1.39  thf(emptysetAx_type,type,
% 1.91/1.39      emptysetAx: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(emptysetAx,definition,
% 1.91/1.39      ( emptysetAx
% 1.91/1.39      = ( ! [Xx: $i] :
% 1.91/1.39            ~ ( in @ Xx @ emptyset ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(setadjoin_type,type,
% 1.91/1.39      setadjoin: $i > $i > $i ).
% 1.91/1.39  
% 1.91/1.39  thf(setadjoinAx_type,type,
% 1.91/1.39      setadjoinAx: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(setadjoinAx,definition,
% 1.91/1.39      ( setadjoinAx
% 1.91/1.39      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 1.91/1.39            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 1.91/1.39          <=> ( ( Xy = Xx )
% 1.91/1.39              | ( in @ Xy @ A ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(powerset_type,type,
% 1.91/1.39      powerset: $i > $i ).
% 1.91/1.39  
% 1.91/1.39  thf(powersetAx_type,type,
% 1.91/1.39      powersetAx: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(powersetAx,definition,
% 1.91/1.39      ( powersetAx
% 1.91/1.39      = ( ! [A: $i,B: $i] :
% 1.91/1.39            ( ( in @ B @ ( powerset @ A ) )
% 1.91/1.39          <=> ! [Xx: $i] :
% 1.91/1.39                ( ( in @ Xx @ B )
% 1.91/1.39               => ( in @ Xx @ A ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(setunion_type,type,
% 1.91/1.39      setunion: $i > $i ).
% 1.91/1.39  
% 1.91/1.39  thf(setunionAx_type,type,
% 1.91/1.39      setunionAx: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(setunionAx,definition,
% 1.91/1.39      ( setunionAx
% 1.91/1.39      = ( ! [A: $i,Xx: $i] :
% 1.91/1.39            ( ( in @ Xx @ ( setunion @ A ) )
% 1.91/1.39          <=> ? [B: $i] :
% 1.91/1.39                ( ( in @ Xx @ B )
% 1.91/1.39                & ( in @ B @ A ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(omega_type,type,
% 1.91/1.39      omega: $i ).
% 1.91/1.39  
% 1.91/1.39  thf(omega0Ax_type,type,
% 1.91/1.39      omega0Ax: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(omega0Ax,definition,
% 1.91/1.39      ( omega0Ax
% 1.91/1.39      = ( in @ emptyset @ omega ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(omegaSAx_type,type,
% 1.91/1.39      omegaSAx: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(omegaSAx,definition,
% 1.91/1.39      ( omegaSAx
% 1.91/1.39      = ( ! [Xx: $i] :
% 1.91/1.39            ( ( in @ Xx @ omega )
% 1.91/1.39           => ( in @ ( setadjoin @ Xx @ Xx ) @ omega ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(omegaIndAx_type,type,
% 1.91/1.39      omegaIndAx: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(omegaIndAx,definition,
% 1.91/1.39      ( omegaIndAx
% 1.91/1.39      = ( ! [A: $i] :
% 1.91/1.39            ( ( ( in @ emptyset @ A )
% 1.91/1.39              & ! [Xx: $i] :
% 1.91/1.39                  ( ( ( in @ Xx @ omega )
% 1.91/1.39                    & ( in @ Xx @ A ) )
% 1.91/1.39                 => ( in @ ( setadjoin @ Xx @ Xx ) @ A ) ) )
% 1.91/1.39           => ! [Xx: $i] :
% 1.91/1.39                ( ( in @ Xx @ omega )
% 1.91/1.39               => ( in @ Xx @ A ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(replAx_type,type,
% 1.91/1.39      replAx: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(replAx,definition,
% 1.91/1.39      ( replAx
% 1.91/1.39      = ( ! [Xphi: $i > $i > $o,A: $i] :
% 1.91/1.39            ( ! [Xx: $i] :
% 1.91/1.39                ( ( in @ Xx @ A )
% 1.91/1.39               => ( exu
% 1.91/1.39                  @ ^ [Xy: $i] : ( Xphi @ Xx @ Xy ) ) )
% 1.91/1.39           => ? [B: $i] :
% 1.91/1.39              ! [Xx: $i] :
% 1.91/1.39                ( ( in @ Xx @ B )
% 1.91/1.39              <=> ? [Xy: $i] :
% 1.91/1.39                    ( ( in @ Xy @ A )
% 1.91/1.39                    & ( Xphi @ Xy @ Xx ) ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(foundationAx_type,type,
% 1.91/1.39      foundationAx: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(foundationAx,definition,
% 1.91/1.39      ( foundationAx
% 1.91/1.39      = ( ! [A: $i] :
% 1.91/1.39            ( ? [Xx: $i] : ( in @ Xx @ A )
% 1.91/1.39           => ? [B: $i] :
% 1.91/1.39                ( ( in @ B @ A )
% 1.91/1.39                & ~ ? [Xx: $i] :
% 1.91/1.39                      ( ( in @ Xx @ B )
% 1.91/1.39                      & ( in @ Xx @ A ) ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(wellorderingAx_type,type,
% 1.91/1.39      wellorderingAx: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(wellorderingAx,definition,
% 1.91/1.39      ( wellorderingAx
% 1.91/1.39      = ( ! [A: $i] :
% 1.91/1.39          ? [B: $i] :
% 1.91/1.39            ( ! [C: $i] :
% 1.91/1.39                ( ( in @ C @ B )
% 1.91/1.39               => ! [Xx: $i] :
% 1.91/1.39                    ( ( in @ Xx @ C )
% 1.91/1.39                   => ( in @ Xx @ A ) ) )
% 1.91/1.39            & ! [Xx: $i,Xy: $i] :
% 1.91/1.39                ( ( ( in @ Xx @ A )
% 1.91/1.39                  & ( in @ Xy @ A ) )
% 1.91/1.39               => ( ! [C: $i] :
% 1.91/1.39                      ( ( in @ C @ B )
% 1.91/1.39                     => ( ( in @ Xx @ C )
% 1.91/1.39                      <=> ( in @ Xy @ C ) ) )
% 1.91/1.39                 => ( Xx = Xy ) ) )
% 1.91/1.39            & ! [C: $i,D: $i] :
% 1.91/1.39                ( ( ( in @ C @ B )
% 1.91/1.39                  & ( in @ D @ B ) )
% 1.91/1.39               => ( ! [Xx: $i] :
% 1.91/1.39                      ( ( in @ Xx @ C )
% 1.91/1.39                     => ( in @ Xx @ D ) )
% 1.91/1.39                  | ! [Xx: $i] :
% 1.91/1.39                      ( ( in @ Xx @ D )
% 1.91/1.39                     => ( in @ Xx @ C ) ) ) )
% 1.91/1.39            & ! [C: $i] :
% 1.91/1.39                ( ( ! [Xx: $i] :
% 1.91/1.39                      ( ( in @ Xx @ C )
% 1.91/1.39                     => ( in @ Xx @ A ) )
% 1.91/1.39                  & ? [Xx: $i] : ( in @ Xx @ C ) )
% 1.91/1.39               => ? [D: $i,Xx: $i] :
% 1.91/1.39                    ( ( in @ D @ B )
% 1.91/1.39                    & ( in @ Xx @ C )
% 1.91/1.39                    & ~ ? [Xy: $i] :
% 1.91/1.39                          ( ( in @ Xy @ D )
% 1.91/1.39                          & ( in @ Xy @ C ) )
% 1.91/1.39                    & ! [E: $i] :
% 1.91/1.39                        ( ( in @ E @ B )
% 1.91/1.39                       => ( ! [Xy: $i] :
% 1.91/1.39                              ( ( in @ Xy @ E )
% 1.91/1.39                             => ( in @ Xy @ D ) )
% 1.91/1.39                          | ( in @ Xx @ E ) ) ) ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(descr_type,type,
% 1.91/1.39      descr: ( $i > $o ) > $i ).
% 1.91/1.39  
% 1.91/1.39  thf(descrp_type,type,
% 1.91/1.39      descrp: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(descrp,definition,
% 1.91/1.39      ( descrp
% 1.91/1.39      = ( ! [Xphi: $i > $o] :
% 1.91/1.39            ( ( exu
% 1.91/1.39              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 1.91/1.39           => ( Xphi
% 1.91/1.39              @ ( descr
% 1.91/1.39                @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(dsetconstr_type,type,
% 1.91/1.39      dsetconstr: $i > ( $i > $o ) > $i ).
% 1.91/1.39  
% 1.91/1.39  thf(dsetconstrI_type,type,
% 1.91/1.39      dsetconstrI: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(dsetconstrI,definition,
% 1.91/1.39      ( dsetconstrI
% 1.91/1.39      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 1.91/1.39            ( ( in @ Xx @ A )
% 1.91/1.39           => ( ( Xphi @ Xx )
% 1.91/1.39             => ( in @ Xx
% 1.91/1.39                @ ( dsetconstr @ A
% 1.91/1.39                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(dsetconstrEL_type,type,
% 1.91/1.39      dsetconstrEL: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(dsetconstrEL,definition,
% 1.91/1.39      ( dsetconstrEL
% 1.91/1.39      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 1.91/1.39            ( ( in @ Xx
% 1.91/1.39              @ ( dsetconstr @ A
% 1.91/1.39                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 1.91/1.39           => ( in @ Xx @ A ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(dsetconstrER_type,type,
% 1.91/1.39      dsetconstrER: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(dsetconstrER,definition,
% 1.91/1.39      ( dsetconstrER
% 1.91/1.39      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 1.91/1.39            ( ( in @ Xx
% 1.91/1.39              @ ( dsetconstr @ A
% 1.91/1.39                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 1.91/1.39           => ( Xphi @ Xx ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(exuE1_type,type,
% 1.91/1.39      exuE1: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(exuE1,definition,
% 1.91/1.39      ( exuE1
% 1.91/1.39      = ( ! [Xphi: $i > $o] :
% 1.91/1.39            ( ( exu
% 1.91/1.39              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 1.91/1.39           => ? [Xx: $i] :
% 1.91/1.39                ( ( Xphi @ Xx )
% 1.91/1.39                & ! [Xy: $i] :
% 1.91/1.39                    ( ( Xphi @ Xy )
% 1.91/1.39                   => ( Xx = Xy ) ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(prop2set_type,type,
% 1.91/1.39      prop2set: $o > $i ).
% 1.91/1.39  
% 1.91/1.39  thf(prop2setE_type,type,
% 1.91/1.39      prop2setE: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(prop2setE,definition,
% 1.91/1.39      ( prop2setE
% 1.91/1.39      = ( ! [Xphi: $o,Xx: $i] :
% 1.91/1.39            ( ( in @ Xx @ ( prop2set @ Xphi ) )
% 1.91/1.39           => Xphi ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(emptysetE_type,type,
% 1.91/1.39      emptysetE: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(emptysetE,definition,
% 1.91/1.39      ( emptysetE
% 1.91/1.39      = ( ! [Xx: $i] :
% 1.91/1.39            ( ( in @ Xx @ emptyset )
% 1.91/1.39           => ! [Xphi: $o] : Xphi ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(emptysetimpfalse_type,type,
% 1.91/1.39      emptysetimpfalse: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(emptysetimpfalse,definition,
% 1.91/1.39      ( emptysetimpfalse
% 1.91/1.39      = ( ! [Xx: $i] :
% 1.91/1.39            ( ( in @ Xx @ emptyset )
% 1.91/1.39           => $false ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(notinemptyset_type,type,
% 1.91/1.39      notinemptyset: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(notinemptyset,definition,
% 1.91/1.39      ( notinemptyset
% 1.91/1.39      = ( ! [Xx: $i] :
% 1.91/1.39            ~ ( in @ Xx @ emptyset ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(exuE3e_type,type,
% 1.91/1.39      exuE3e: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(exuE3e,definition,
% 1.91/1.39      ( exuE3e
% 1.91/1.39      = ( ! [Xphi: $i > $o] :
% 1.91/1.39            ( ( exu
% 1.91/1.39              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 1.91/1.39           => ? [Xx: $i] : ( Xphi @ Xx ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(setext_type,type,
% 1.91/1.39      setext: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(setext,definition,
% 1.91/1.39      ( setext
% 1.91/1.39      = ( ! [A: $i,B: $i] :
% 1.91/1.39            ( ! [Xx: $i] :
% 1.91/1.39                ( ( in @ Xx @ A )
% 1.91/1.39               => ( in @ Xx @ B ) )
% 1.91/1.39           => ( ! [Xx: $i] :
% 1.91/1.39                  ( ( in @ Xx @ B )
% 1.91/1.39                 => ( in @ Xx @ A ) )
% 1.91/1.39             => ( A = B ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(emptyI_type,type,
% 1.91/1.39      emptyI: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(emptyI,definition,
% 1.91/1.39      ( emptyI
% 1.91/1.39      = ( ! [A: $i] :
% 1.91/1.39            ( ! [Xx: $i] :
% 1.91/1.39                ~ ( in @ Xx @ A )
% 1.91/1.39           => ( A = emptyset ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(noeltsimpempty_type,type,
% 1.91/1.39      noeltsimpempty: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(noeltsimpempty,definition,
% 1.91/1.39      ( noeltsimpempty
% 1.91/1.39      = ( ! [A: $i] :
% 1.91/1.39            ( ! [Xx: $i] :
% 1.91/1.39                ~ ( in @ Xx @ A )
% 1.91/1.39           => ( A = emptyset ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(setbeta_type,type,
% 1.91/1.39      setbeta: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(setbeta,definition,
% 1.91/1.39      ( setbeta
% 1.91/1.39      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 1.91/1.39            ( ( in @ Xx @ A )
% 1.91/1.39           => ( ( in @ Xx
% 1.91/1.39                @ ( dsetconstr @ A
% 1.91/1.39                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 1.91/1.39            <=> ( Xphi @ Xx ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(nonempty_type,type,
% 1.91/1.39      nonempty: $i > $o ).
% 1.91/1.39  
% 1.91/1.39  thf(nonempty,definition,
% 1.91/1.39      ( nonempty
% 1.91/1.39      = ( ^ [Xx: $i] : ( Xx != emptyset ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(nonemptyE1_type,type,
% 1.91/1.39      nonemptyE1: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(nonemptyE1,definition,
% 1.91/1.39      ( nonemptyE1
% 1.91/1.39      = ( ! [A: $i] :
% 1.91/1.39            ( ( nonempty @ A )
% 1.91/1.39           => ? [Xx: $i] : ( in @ Xx @ A ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(nonemptyI_type,type,
% 1.91/1.39      nonemptyI: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(nonemptyI,definition,
% 1.91/1.39      ( nonemptyI
% 1.91/1.39      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 1.91/1.39            ( ( in @ Xx @ A )
% 1.91/1.39           => ( ( Xphi @ Xx )
% 1.91/1.39             => ( nonempty
% 1.91/1.39                @ ( dsetconstr @ A
% 1.91/1.39                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(nonemptyI1_type,type,
% 1.91/1.39      nonemptyI1: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(nonemptyI1,definition,
% 1.91/1.39      ( nonemptyI1
% 1.91/1.39      = ( ! [A: $i] :
% 1.91/1.39            ( ? [Xx: $i] : ( in @ Xx @ A )
% 1.91/1.39           => ( nonempty @ A ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(setadjoinIL_type,type,
% 1.91/1.39      setadjoinIL: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(setadjoinIL,definition,
% 1.91/1.39      ( setadjoinIL
% 1.91/1.39      = ( ! [Xx: $i,Xy: $i] : ( in @ Xx @ ( setadjoin @ Xx @ Xy ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(emptyinunitempty_type,type,
% 1.91/1.39      emptyinunitempty: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(emptyinunitempty,definition,
% 1.91/1.39      ( emptyinunitempty
% 1.91/1.39      = ( in @ emptyset @ ( setadjoin @ emptyset @ emptyset ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(setadjoinIR_type,type,
% 1.91/1.39      setadjoinIR: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(setadjoinIR,definition,
% 1.91/1.39      ( setadjoinIR
% 1.91/1.39      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 1.91/1.39            ( ( in @ Xy @ A )
% 1.91/1.39           => ( in @ Xy @ ( setadjoin @ Xx @ A ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(setadjoinE_type,type,
% 1.91/1.39      setadjoinE: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(setadjoinE,definition,
% 1.91/1.39      ( setadjoinE
% 1.91/1.39      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 1.91/1.39            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 1.91/1.39           => ! [Xphi: $o] :
% 1.91/1.39                ( ( ( Xy = Xx )
% 1.91/1.39                 => Xphi )
% 1.91/1.39               => ( ( ( in @ Xy @ A )
% 1.91/1.39                   => Xphi )
% 1.91/1.39                 => Xphi ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(setadjoinOr_type,type,
% 1.91/1.39      setadjoinOr: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(setadjoinOr,definition,
% 1.91/1.39      ( setadjoinOr
% 1.91/1.39      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 1.91/1.39            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 1.91/1.39           => ( ( Xy = Xx )
% 1.91/1.39              | ( in @ Xy @ A ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(setoftrueEq_type,type,
% 1.91/1.39      setoftrueEq: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(setoftrueEq,definition,
% 1.91/1.39      ( setoftrueEq
% 1.91/1.39      = ( ! [A: $i] :
% 1.91/1.39            ( ( dsetconstr @ A
% 1.91/1.39              @ ^ [Xx: $i] : $true )
% 1.91/1.39            = A ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(powersetI_type,type,
% 1.91/1.39      powersetI: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(powersetI,definition,
% 1.91/1.39      ( powersetI
% 1.91/1.39      = ( ! [A: $i,B: $i] :
% 1.91/1.39            ( ! [Xx: $i] :
% 1.91/1.39                ( ( in @ Xx @ B )
% 1.91/1.39               => ( in @ Xx @ A ) )
% 1.91/1.39           => ( in @ B @ ( powerset @ A ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(emptyinPowerset_type,type,
% 1.91/1.39      emptyinPowerset: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(emptyinPowerset,definition,
% 1.91/1.39      ( emptyinPowerset
% 1.91/1.39      = ( ! [A: $i] : ( in @ emptyset @ ( powerset @ A ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(emptyInPowerset_type,type,
% 1.91/1.39      emptyInPowerset: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(emptyInPowerset,definition,
% 1.91/1.39      ( emptyInPowerset
% 1.91/1.39      = ( ! [A: $i] : ( in @ emptyset @ ( powerset @ A ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(powersetE_type,type,
% 1.91/1.39      powersetE: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(powersetE,definition,
% 1.91/1.39      ( powersetE
% 1.91/1.39      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.91/1.39            ( ( in @ B @ ( powerset @ A ) )
% 1.91/1.39           => ( ( in @ Xx @ B )
% 1.91/1.39             => ( in @ Xx @ A ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(setunionI_type,type,
% 1.91/1.39      setunionI: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(setunionI,definition,
% 1.91/1.39      ( setunionI
% 1.91/1.39      = ( ! [A: $i,Xx: $i,B: $i] :
% 1.91/1.39            ( ( in @ Xx @ B )
% 1.91/1.39           => ( ( in @ B @ A )
% 1.91/1.39             => ( in @ Xx @ ( setunion @ A ) ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(setunionE_type,type,
% 1.91/1.39      setunionE: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(setunionE,definition,
% 1.91/1.39      ( setunionE
% 1.91/1.39      = ( ! [A: $i,Xx: $i] :
% 1.91/1.39            ( ( in @ Xx @ ( setunion @ A ) )
% 1.91/1.39           => ! [Xphi: $o] :
% 1.91/1.39                ( ! [B: $i] :
% 1.91/1.39                    ( ( in @ Xx @ B )
% 1.91/1.39                   => ( ( in @ B @ A )
% 1.91/1.39                     => Xphi ) )
% 1.91/1.39               => Xphi ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(subPowSU_type,type,
% 1.91/1.39      subPowSU: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(subPowSU,definition,
% 1.91/1.39      ( subPowSU
% 1.91/1.39      = ( ! [A: $i,Xx: $i] :
% 1.91/1.39            ( ( in @ Xx @ A )
% 1.91/1.39           => ( in @ Xx @ ( powerset @ ( setunion @ A ) ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(exuE2_type,type,
% 1.91/1.39      exuE2: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(exuE2,definition,
% 1.91/1.39      ( exuE2
% 1.91/1.39      = ( ! [Xphi: $i > $o] :
% 1.91/1.39            ( ( exu
% 1.91/1.39              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 1.91/1.39           => ? [Xx: $i] :
% 1.91/1.39              ! [Xy: $i] :
% 1.91/1.39                ( ( Xphi @ Xy )
% 1.91/1.39              <=> ( Xy = Xx ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(nonemptyImpWitness_type,type,
% 1.91/1.39      nonemptyImpWitness: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(nonemptyImpWitness,definition,
% 1.91/1.39      ( nonemptyImpWitness
% 1.91/1.39      = ( ! [A: $i] :
% 1.91/1.39            ( ( nonempty @ A )
% 1.91/1.39           => ? [Xx: $i] :
% 1.91/1.39                ( ( in @ Xx @ A )
% 1.91/1.39                & $true ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(uniqinunit_type,type,
% 1.91/1.39      uniqinunit: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(uniqinunit,definition,
% 1.91/1.39      ( uniqinunit
% 1.91/1.39      = ( ! [Xx: $i,Xy: $i] :
% 1.91/1.39            ( ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) )
% 1.91/1.39           => ( Xx = Xy ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(notinsingleton_type,type,
% 1.91/1.39      notinsingleton: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(notinsingleton,definition,
% 1.91/1.39      ( notinsingleton
% 1.91/1.39      = ( ! [Xx: $i,Xy: $i] :
% 1.91/1.39            ( ( Xx != Xy )
% 1.91/1.39           => ~ ( in @ Xy @ ( setadjoin @ Xx @ emptyset ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(eqinunit_type,type,
% 1.91/1.39      eqinunit: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(eqinunit,definition,
% 1.91/1.39      ( eqinunit
% 1.91/1.39      = ( ! [Xx: $i,Xy: $i] :
% 1.91/1.39            ( ( Xx = Xy )
% 1.91/1.39           => ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(singletonsswitch_type,type,
% 1.91/1.39      singletonsswitch: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(singletonsswitch,definition,
% 1.91/1.39      ( singletonsswitch
% 1.91/1.39      = ( ! [Xx: $i,Xy: $i] :
% 1.91/1.39            ( ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) )
% 1.91/1.39           => ( in @ Xy @ ( setadjoin @ Xx @ emptyset ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(upairsetE_type,type,
% 1.91/1.39      upairsetE: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(upairsetE,definition,
% 1.91/1.39      ( upairsetE
% 1.91/1.39      = ( ! [Xx: $i,Xy: $i,Xz: $i] :
% 1.91/1.39            ( ( in @ Xz @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) )
% 1.91/1.39           => ( ( Xz = Xx )
% 1.91/1.39              | ( Xz = Xy ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(upairsetIL_type,type,
% 1.91/1.39      upairsetIL: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(upairsetIL,definition,
% 1.91/1.39      ( upairsetIL
% 1.91/1.39      = ( ! [Xx: $i,Xy: $i] : ( in @ Xx @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(upairsetIR_type,type,
% 1.91/1.39      upairsetIR: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(upairsetIR,definition,
% 1.91/1.39      ( upairsetIR
% 1.91/1.39      = ( ! [Xx: $i,Xy: $i] : ( in @ Xy @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(emptyE1_type,type,
% 1.91/1.39      emptyE1: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(emptyE1,definition,
% 1.91/1.39      ( emptyE1
% 1.91/1.39      = ( ! [A: $i,Xphi: $i > $o] :
% 1.91/1.39            ( ? [Xx: $i] :
% 1.91/1.39                ( ( in @ Xx @ A )
% 1.91/1.39                & ( Xphi @ Xx ) )
% 1.91/1.39           => ( ( ( dsetconstr @ A
% 1.91/1.39                  @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 1.91/1.39                = emptyset )
% 1.91/1.39             => $false ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(vacuousDall_type,type,
% 1.91/1.39      vacuousDall: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(vacuousDall,definition,
% 1.91/1.39      ( vacuousDall
% 1.91/1.39      = ( ! [Xphi: $i > $o,Xx: $i] :
% 1.91/1.39            ( ( in @ Xx @ emptyset )
% 1.91/1.39           => ( Xphi @ Xx ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(quantDeMorgan1_type,type,
% 1.91/1.39      quantDeMorgan1: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(quantDeMorgan1,definition,
% 1.91/1.39      ( quantDeMorgan1
% 1.91/1.39      = ( ! [A: $i,Xphi: $i > $o] :
% 1.91/1.39            ( ~ ! [Xx: $i] :
% 1.91/1.39                  ( ( in @ Xx @ A )
% 1.91/1.39                 => ( Xphi @ Xx ) )
% 1.91/1.39           => ? [Xx: $i] :
% 1.91/1.39                ( ( in @ Xx @ A )
% 1.91/1.39                & ~ ( Xphi @ Xx ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(quantDeMorgan2_type,type,
% 1.91/1.39      quantDeMorgan2: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(quantDeMorgan2,definition,
% 1.91/1.39      ( quantDeMorgan2
% 1.91/1.39      = ( ! [A: $i,Xphi: $i > $o] :
% 1.91/1.39            ( ! [Xx: $i] :
% 1.91/1.39                ( ( in @ Xx @ A )
% 1.91/1.39               => ~ ( Xphi @ Xx ) )
% 1.91/1.39           => ~ ? [Xx: $i] :
% 1.91/1.39                  ( ( in @ Xx @ A )
% 1.91/1.39                  & ( Xphi @ Xx ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(quantDeMorgan3_type,type,
% 1.91/1.39      quantDeMorgan3: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(quantDeMorgan3,definition,
% 1.91/1.39      ( quantDeMorgan3
% 1.91/1.39      = ( ! [A: $i,Xphi: $i > $o] :
% 1.91/1.39            ( ~ ? [Xx: $i] :
% 1.91/1.39                  ( ( in @ Xx @ A )
% 1.91/1.39                  & ( Xphi @ Xx ) )
% 1.91/1.39           => ! [Xx: $i] :
% 1.91/1.39                ( ( in @ Xx @ A )
% 1.91/1.39               => ~ ( Xphi @ Xx ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(quantDeMorgan4_type,type,
% 1.91/1.39      quantDeMorgan4: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(quantDeMorgan4,definition,
% 1.91/1.39      ( quantDeMorgan4
% 1.91/1.39      = ( ! [A: $i,Xphi: $i > $o] :
% 1.91/1.39            ( ? [Xx: $i] :
% 1.91/1.39                ( ( in @ Xx @ A )
% 1.91/1.39                & ~ ( Xphi @ Xx ) )
% 1.91/1.39           => ~ ! [Xx: $i] :
% 1.91/1.39                  ( ( in @ Xx @ A )
% 1.91/1.39                 => ( Xphi @ Xx ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(prop2setI_type,type,
% 1.91/1.39      prop2setI: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(prop2setI,definition,
% 1.91/1.39      ( prop2setI
% 1.91/1.39      = ( ! [Xphi: $o] :
% 1.91/1.39            ( Xphi
% 1.91/1.39           => ( in @ emptyset @ ( prop2set @ Xphi ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(set2prop_type,type,
% 1.91/1.39      set2prop: $i > $o ).
% 1.91/1.39  
% 1.91/1.39  thf(prop2set2propI_type,type,
% 1.91/1.39      prop2set2propI: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(prop2set2propI,definition,
% 1.91/1.39      ( prop2set2propI
% 1.91/1.39      = ( ! [Xphi: $o] :
% 1.91/1.39            ( Xphi
% 1.91/1.39           => ( set2prop @ ( prop2set @ Xphi ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(notdexE_type,type,
% 1.91/1.39      notdexE: $o ).
% 1.91/1.39  
% 1.91/1.39  thf(notdexE,definition,
% 1.91/1.39      ( notdexE
% 1.91/1.39      = ( ! [A: $i,Xphi: $i > $o] :
% 1.91/1.39            ( ~ ? [Xx: $i] :
% 1.91/1.39                  ( ( in @ Xx @ A )
% 1.91/1.39                  & ( Xphi @ Xx ) )
% 1.91/1.39           => ! [Xx: $i] :
% 1.91/1.39                ( ( in @ Xx @ A )
% 1.91/1.39               => ~ ( Xphi @ Xx ) ) ) ) ) ).
% 1.91/1.39  
% 1.91/1.39  thf(notdallE,conjecture,
% 1.91/1.39      ( setextAx
% 1.91/1.39     => ( emptysetAx
% 1.91/1.39       => ( setadjoinAx
% 1.91/1.39         => ( powersetAx
% 1.91/1.39           => ( setunionAx
% 1.91/1.39             => ( omega0Ax
% 1.91/1.39               => ( omegaSAx
% 1.91/1.39                 => ( omegaIndAx
% 1.91/1.39                   => ( replAx
% 1.91/1.39                     => ( foundationAx
% 1.91/1.39                       => ( wellorderingAx
% 1.91/1.39                         => ( descrp
% 1.91/1.39                           => ( dsetconstrI
% 1.91/1.39                             => ( dsetconstrEL
% 1.91/1.39                               => ( dsetconstrER
% 1.91/1.39                                 => ( exuE1
% 1.91/1.39                                   => ( prop2setE
% 1.91/1.39                                     => ( emptysetE
% 1.91/1.39                                       => ( emptysetimpfalse
% 1.91/1.39                                         => ( notinemptyset
% 1.91/1.39                                           => ( exuE3e
% 1.91/1.39                                             => ( setext
% 1.91/1.39                                               => ( emptyI
% 1.91/1.39                                                 => ( noeltsimpempty
% 1.91/1.39                                                   => ( setbeta
% 1.91/1.39                                                     => ( nonemptyE1
% 1.91/1.39                                                       => ( nonemptyI
% 1.91/1.39                                                         => ( nonemptyI1
% 1.91/1.39                                                           => ( setadjoinIL
% 1.91/1.39                                                             => ( emptyinunitempty
% 1.91/1.39                                                               => ( setadjoinIR
% 1.91/1.39                                                                 => ( setadjoinE
% 1.91/1.39                                                                   => ( setadjoinOr
% 1.91/1.39                                                                     => ( setoftrueEq
% 1.91/1.39                                                                       => ( powersetI
% 1.91/1.39                                                                         => ( emptyinPowerset
% 1.91/1.39                                                                           => ( emptyInPowerset
% 1.91/1.39                                                                             => ( powersetE
% 1.91/1.39                                                                               => ( setunionI
% 1.91/1.39                                                                                 => ( setunionE
% 1.91/1.39                                                                                   => ( subPowSU
% 1.91/1.39                                                                                     => ( exuE2
% 1.91/1.39                                                                                       => ( nonemptyImpWitness
% 1.91/1.39                                                                                         => ( uniqinunit
% 1.91/1.39                                                                                           => ( notinsingleton
% 1.91/1.39                                                                                             => ( eqinunit
% 1.91/1.39                                                                                               => ( singletonsswitch
% 1.91/1.39                                                                                                 => ( upairsetE
% 1.91/1.39                                                                                                   => ( upairsetIL
% 1.91/1.39                                                                                                     => ( upairsetIR
% 1.91/1.39                                                                                                       => ( emptyE1
% 1.91/1.39                                                                                                         => ( vacuousDall
% 1.91/1.39                                                                                                           => ( quantDeMorgan1
% 1.91/1.39                                                                                                             => ( quantDeMorgan2
% 1.91/1.39                                                                                                               => ( quantDeMorgan3
% 1.91/1.39                                                                                                                 => ( quantDeMorgan4
% 1.91/1.39                                                                                                                   => ( prop2setI
% 1.91/1.39                                                                                                                     => ( prop2set2propI
% 1.91/1.39                                                                                                                       => ( notdexE
% 1.91/1.39                                                                                                                         => ! [A: $i,Xphi: $i > $o] :
% 1.91/1.39                                                                                                                              ( ~ ! [Xx: $i] :
% 1.91/1.39                                                                                                                                    ( ( in @ Xx @ A )
% 1.91/1.39                                                                                                                                   => ( Xphi @ Xx ) )
% 1.91/1.39                                                                                                                             => ? [Xx: $i] :
% 1.91/1.39                                                                                                                                  ( ( in @ Xx @ A )
% 1.91/1.39                                                                                                                                  & ~ ( Xphi @ Xx ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ).
% 1.91/1.39  ------------------------
% 2.13/1.41  % (17742)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_17621 for (2999ds/2Mi)
% 2.13/1.41  % (17744)lrs+1004_1:128_cond=on:e2e=on:sp=weighted_frequency:i=18:si=on:rtra=on_0 on DTF2THF_17621 for (2999ds/18Mi)
% 2.13/1.41  % (17742)Instruction limit reached!
% 2.13/1.41  % (17742)------------------------------
% 2.13/1.41  % (17742)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.13/1.41  % (17742)Termination reason: Unknown
% 2.13/1.41  % (17742)Termination phase: shuffling
% 2.13/1.41  
% 2.13/1.41  % (17742)Memory used [KB]: 1151
% 2.13/1.41  % (17742)Time elapsed: 0.002 s
% 2.13/1.41  % (17742)Instructions burned: 2 (million)
% 2.13/1.41  % (17742)------------------------------
% 2.13/1.41  % (17742)------------------------------
% 2.13/1.41  % (17743)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_17621 for (2999ds/275Mi)
% 2.13/1.41  % (17744)Instruction limit reached!
% 2.13/1.41  % (17744)------------------------------
% 2.13/1.41  % (17744)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.13/1.41  % (17744)Termination reason: Unknown
% 2.13/1.41  % (17744)Termination phase: Preprocessing 3
% 2.13/1.41  
% 2.13/1.41  % (17744)Memory used [KB]: 1663
% 2.13/1.41  % (17744)Time elapsed: 0.007 s
% 2.13/1.41  % (17744)Instructions burned: 20 (million)
% 2.13/1.41  % (17744)------------------------------
% 2.13/1.41  % (17744)------------------------------
% 2.13/1.42  % (17739)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_17621 for (2999ds/4Mi)
% 2.13/1.42  % (17741)lrs+10_1:1_au=on:inj=on:i=2:si=on:rtra=on_0 on DTF2THF_17621 for (2999ds/2Mi)
% 2.13/1.42  % (17738)lrs+1002_1:8_bd=off:fd=off:hud=10:tnu=1:i=183:si=on:rtra=on_0 on DTF2THF_17621 for (2999ds/183Mi)
% 2.13/1.42  % (17740)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_17621 for (2999ds/27Mi)
% 2.13/1.42  % (17741)Instruction limit reached!
% 2.13/1.42  % (17741)------------------------------
% 2.13/1.42  % (17741)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.13/1.42  % (17741)Termination reason: Unknown
% 2.13/1.42  % (17741)Termination phase: shuffling
% 2.13/1.42  
% 2.13/1.42  % (17741)Memory used [KB]: 1151
% 2.13/1.42  % (17741)Time elapsed: 0.004 s
% 2.13/1.42  % (17741)Instructions burned: 3 (million)
% 2.13/1.42  % (17741)------------------------------
% 2.13/1.42  % (17741)------------------------------
% 2.13/1.42  % (17739)Instruction limit reached!
% 2.13/1.42  % (17739)------------------------------
% 2.13/1.42  % (17739)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.13/1.42  % (17739)Termination reason: Unknown
% 2.13/1.42  % (17739)Termination phase: shuffling
% 2.13/1.42  
% 2.13/1.42  % (17739)Memory used [KB]: 1151
% 2.13/1.42  % (17739)Time elapsed: 0.005 s
% 2.13/1.42  % (17739)Instructions burned: 5 (million)
% 2.13/1.42  % (17739)------------------------------
% 2.13/1.42  % (17739)------------------------------
% 2.13/1.42  % (17745)lrs+10_1:1_bet=on:cnfonf=off:fd=off:hud=5:inj=on:i=3:si=on:rtra=on_0 on DTF2THF_17621 for (2999ds/3Mi)
% 2.13/1.42  % (17745)Instruction limit reached!
% 2.13/1.42  % (17745)------------------------------
% 2.13/1.42  % (17745)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.13/1.42  % (17745)Termination reason: Unknown
% 2.13/1.42  % (17745)Termination phase: shuffling
% 2.13/1.42  
% 2.13/1.42  % (17745)Memory used [KB]: 1151
% 2.13/1.42  % (17745)Time elapsed: 0.002 s
% 2.13/1.42  % (17745)Instructions burned: 3 (million)
% 2.13/1.42  % (17745)------------------------------
% 2.13/1.42  % (17745)------------------------------
% 2.13/1.42  % (17746)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_17621 for (2999ds/37Mi)
% 2.13/1.43  % (17740)Instruction limit reached!
% 2.13/1.43  % (17740)------------------------------
% 2.13/1.43  % (17740)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.13/1.43  % (17740)Termination reason: Unknown
% 2.13/1.43  % (17740)Termination phase: Property scanning
% 2.13/1.43  
% 2.13/1.43  % (17740)Memory used [KB]: 1407
% 2.13/1.43  % (17740)Time elapsed: 0.016 s
% 2.13/1.43  % (17740)Instructions burned: 28 (million)
% 2.13/1.43  % (17740)------------------------------
% 2.13/1.43  % (17740)------------------------------
% 2.13/1.43  % (17749)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_17621 for (2999ds/1041Mi)
% 2.13/1.43  % (17746)Instruction limit reached!
% 2.13/1.43  % (17746)------------------------------
% 2.13/1.43  % (17746)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.13/1.43  % (17746)Termination reason: Unknown
% 2.13/1.43  % (17746)Termination phase: Saturation
% 2.13/1.43  
% 2.13/1.43  % (17746)Memory used [KB]: 5884
% 2.13/1.43  % (17746)Time elapsed: 0.011 s
% 2.13/1.43  % (17746)Instructions burned: 39 (million)
% 2.13/1.43  % (17746)------------------------------
% 2.13/1.43  % (17746)------------------------------
% 2.13/1.43  % (17747)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_17621 for (2999ds/15Mi)
% 2.13/1.44  % (17748)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_17621 for (2999ds/3Mi)
% 2.13/1.44  % (17748)Instruction limit reached!
% 2.13/1.44  % (17748)------------------------------
% 2.13/1.44  % (17748)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.13/1.44  % (17748)Termination reason: Unknown
% 2.13/1.44  % (17748)Termination phase: shuffling
% 2.13/1.44  
% 2.13/1.44  % (17748)Memory used [KB]: 1151
% 2.13/1.44  % (17748)Time elapsed: 0.004 s
% 2.13/1.44  % (17748)Instructions burned: 4 (million)
% 2.13/1.44  % (17748)------------------------------
% 2.13/1.44  % (17748)------------------------------
% 2.13/1.44  % (17743)First to succeed.
% 2.13/1.44  % (17743)Refutation found. Thanks to Tanya!
% 2.13/1.44  % SZS status Theorem for DTF2THF_17621
% 2.13/1.44  % SZS output start Proof for DTF2THF_17621
% 2.13/1.44  thf(func_def_0, type, in: $i > $i > $o).
% 2.13/1.44  thf(func_def_1, type, exu: ($i > $o) > $o).
% 2.13/1.44  thf(func_def_6, type, setadjoin: $i > $i > $i).
% 2.13/1.44  thf(func_def_8, type, powerset: $i > $i).
% 2.13/1.44  thf(func_def_10, type, setunion: $i > $i).
% 2.13/1.44  thf(func_def_19, type, descr: ($i > $o) > $i).
% 2.13/1.44  thf(func_def_21, type, dsetconstr: $i > ($i > $o) > $i).
% 2.13/1.44  thf(func_def_26, type, prop2set: $o > $i).
% 2.13/1.44  thf(func_def_36, type, nonempty: $i > $o).
% 2.13/1.44  thf(func_def_69, type, set2prop: $i > $o).
% 2.13/1.44  thf(func_def_85, type, sP1: $i > $i > $o).
% 2.13/1.44  thf(func_def_86, type, sP2: $i > $o).
% 2.13/1.44  thf(func_def_87, type, sP3: $i > $i > $o).
% 2.13/1.44  thf(func_def_88, type, sP4: $i > $i > $o).
% 2.13/1.44  thf(func_def_92, type, sK8: $i > $i).
% 2.13/1.44  thf(func_def_100, type, sK16: $i > $i > $i).
% 2.13/1.44  thf(func_def_101, type, sK17: $i > $i > $i).
% 2.13/1.44  thf(func_def_103, type, sK19: $i > $i).
% 2.13/1.44  thf(func_def_105, type, sK21: $i > $o).
% 2.13/1.44  thf(func_def_107, type, sK23: ($i > $o) > $i > $i).
% 2.13/1.44  thf(func_def_113, type, sK29: $i > $o).
% 2.13/1.44  thf(func_def_118, type, sK34: $i > $i > $i).
% 2.13/1.44  thf(func_def_122, type, sK38: $i > $o).
% 2.13/1.44  thf(func_def_123, type, sK39: $i > $i).
% 2.13/1.44  thf(func_def_124, type, sK40: ($i > $o) > $i).
% 2.13/1.44  thf(func_def_126, type, sK42: $i > $o).
% 2.13/1.44  thf(func_def_127, type, sK43: $i > $i).
% 2.13/1.44  thf(func_def_128, type, sK44: ($i > $o) > $i).
% 2.13/1.44  thf(func_def_129, type, sK45: $i > $i).
% 2.13/1.44  thf(func_def_131, type, sK47: $i > $i).
% 2.13/1.44  thf(func_def_135, type, sK51: $i > $i > $i).
% 2.13/1.44  thf(func_def_139, type, sK55: $i > $i > $o).
% 2.13/1.44  thf(func_def_141, type, sK57: $i > $i).
% 2.13/1.44  thf(func_def_142, type, sK58: $i > $i).
% 2.13/1.44  thf(func_def_143, type, sK59: $i > ($i > $i > $o) > $i).
% 2.13/1.44  thf(func_def_144, type, sK60: $i > ($i > $i > $o) > $i).
% 2.13/1.44  thf(func_def_145, type, sK61: $i > $i > ($i > $i > $o) > $i).
% 2.13/1.44  thf(func_def_147, type, sK63: $i > $o).
% 2.13/1.44  thf(func_def_149, type, sK65: ($i > $o) > $i > $i).
% 2.13/1.44  thf(func_def_152, type, sK68: $i > $o).
% 2.13/1.44  thf(func_def_158, type, sK74: $i > $i > $i).
% 2.13/1.44  thf(func_def_167, type, sK83: $i > $i).
% 2.13/1.44  thf(func_def_172, type, sK88: $i > $o).
% 2.13/1.44  thf(func_def_175, type, sK91: $i > $i > $i).
% 2.13/1.44  thf(func_def_176, type, sK92: $i > $o).
% 2.13/1.44  thf(func_def_179, type, sK95: $i > $i).
% 2.13/1.44  thf(func_def_187, type, sK103: $i > ($i > $o) > $i).
% 2.13/1.44  thf(func_def_188, type, sK104: $i > $o).
% 2.13/1.44  thf(func_def_197, type, sK113: $o > $i > $i > $i).
% 2.13/1.44  thf(func_def_199, type, sK115: $i > $o).
% 2.13/1.44  thf(func_def_201, type, sK117: ($i > $o) > $i).
% 2.13/1.44  thf(func_def_202, type, sK118: $i > $o).
% 2.13/1.44  thf(func_def_203, type, sK119: ($i > $o) > $i > $i).
% 2.13/1.44  thf(func_def_205, type, sK121: $i > $o).
% 2.13/1.44  thf(func_def_208, type, sK124: $i > $o).
% 2.13/1.44  thf(func_def_210, type, sK126: ($i > $o) > $i > $i).
% 2.13/1.44  thf(func_def_213, type, sK129: $i > $o).
% 2.13/1.44  thf(func_def_221, type, sK137: $i > $i).
% 2.13/1.44  thf(func_def_231, type, sK147: $i > $o).
% 2.13/1.44  thf(func_def_235, type, sK151: $i > $o).
% 2.13/1.44  thf(func_def_236, type, sK152: $i > $i > $i).
% 2.13/1.44  thf(func_def_237, type, sK153: $i > $i > $i).
% 2.13/1.44  thf(func_def_238, type, sK154: $i > $i > $i).
% 2.13/1.44  thf(func_def_239, type, sK155: $i > $i > $i).
% 2.13/1.44  thf(func_def_240, type, sK156: $i > $i > $i > $i).
% 2.13/1.44  thf(func_def_241, type, sK157: $i > $i).
% 2.13/1.44  thf(func_def_242, type, sK158: $i > $i).
% 2.13/1.44  thf(func_def_243, type, sK159: $i > $i).
% 2.13/1.44  thf(func_def_244, type, sK160: $i > $i).
% 2.13/1.44  thf(func_def_245, type, sK161: $i > $i > $i > $i).
% 2.13/1.44  thf(func_def_246, type, sK162: $i > $i > $i > $i).
% 2.13/1.44  thf(func_def_247, type, sK163: $i > $i > $i).
% 2.13/1.44  thf(func_def_248, type, sK164: $i > $i > $i).
% 2.13/1.44  thf(func_def_249, type, sK165: $i > $i > $i).
% 2.13/1.44  thf(func_def_250, type, sK166: $i > $i).
% 2.13/1.44  thf(func_def_251, type, sK167: $i > $i > $i).
% 2.13/1.44  thf(func_def_253, type, sK169: $i > $i).
% 2.13/1.44  thf(func_def_254, type, sK170: $i > $i).
% 2.13/1.44  thf(func_def_256, type, ph172: !>[X0: $tType]:(X0)).
% 2.13/1.44  thf(f1299,plain,(
% 2.13/1.44    $false),
% 2.13/1.44    inference(subsumption_resolution,[status(thm)],[f1271,f623])).
% 2.13/1.44  thf(f623,plain,(
% 2.13/1.44    ($true != (sK29 @ sK31))),
% 2.13/1.44    inference(cnf_transformation,[status(thm)],[f314])).
% 2.13/1.44  thf(f314,plain,(
% 2.13/1.44    (setoftrueEq = $true) & (quantDeMorgan2 = $true) & (setadjoinIL = $true) & (emptysetimpfalse = $true) & (vacuousDall = $true) & (upairsetE = $true) & (powersetE = $true) & (dsetconstrEL = $true) & (emptyinunitempty = $true) & (setadjoinAx = $true) & (nonemptyE1 = $true) & (exuE1 = $true) & (setunionI = $true) & (setadjoinIR = $true) & (prop2setE = $true) & (setadjoinE = $true) & (foundationAx = $true) & (emptysetAx = $true) & (emptyE1 = $true) & (upairsetIL = $true) & (setunionAx = $true) & (setadjoinOr = $true) & (setext = $true) & (exuE2 = $true) & (emptyinPowerset = $true) & (quantDeMorgan4 = $true) & (dsetconstrER = $true) & (eqinunit = $true) & (quantDeMorgan3 = $true) & (nonemptyImpWitness = $true) & (descrp = $true) & (omega0Ax = $true) & (noeltsimpempty = $true) & (quantDeMorgan1 = $true) & (replAx = $true) & (setextAx = $true) & (emptyI = $true) & (nonemptyI = $true) & ((($true = (in @ sK31 @ sK30)) & ($true != (sK29 @ sK31))) & ! [X3 : $i] : (($true != (in @ X3 @ sK30)) | ($true = (sK29 @ X3)))) & (nonemptyI1 = $true) & (prop2setI = $true) & (setbeta = $true) & (notdexE = $true) & (setunionE = $true) & (omegaSAx = $true) & (emptysetE = $true) & (dsetconstrI = $true) & (omegaIndAx = $true) & (subPowSU = $true) & (powersetAx = $true) & (powersetI = $true) & (emptyInPowerset = $true) & (exuE3e = $true) & (singletonsswitch = $true) & (uniqinunit = $true) & (notinemptyset = $true) & (wellorderingAx = $true) & (upairsetIR = $true) & (notinsingleton = $true) & (prop2set2propI = $true)),
% 2.13/1.44    inference(skolemisation,[status(esa),new_symbols(skolem,[sK29,sK30,sK31])],[f222,f313,f312])).
% 2.13/1.44  thf(f312,plain,(
% 2.13/1.44    ? [X0 : $i > $o,X1 : $i] : (? [X2 : $i] : (($true = (in @ X2 @ X1)) & ((X0 @ X2) != $true)) & ! [X3 : $i] : (($true != (in @ X3 @ X1)) | ($true = (X0 @ X3)))) => (? [X2 : $i] : (($true = (in @ X2 @ sK30)) & ($true != (sK29 @ X2))) & ! [X3 : $i] : (($true != (in @ X3 @ sK30)) | ($true = (sK29 @ X3))))),
% 2.13/1.44    introduced(definition,[],[choice_axiom])).
% 2.13/1.44  thf(f313,plain,(
% 2.13/1.44    ? [X2 : $i] : (($true = (in @ X2 @ sK30)) & ($true != (sK29 @ X2))) => (($true = (in @ sK31 @ sK30)) & ($true != (sK29 @ sK31)))),
% 2.13/1.44    introduced(definition,[],[choice_axiom])).
% 2.13/1.44  thf(f222,plain,(
% 2.13/1.44    (setoftrueEq = $true) & (quantDeMorgan2 = $true) & (setadjoinIL = $true) & (emptysetimpfalse = $true) & (vacuousDall = $true) & (upairsetE = $true) & (powersetE = $true) & (dsetconstrEL = $true) & (emptyinunitempty = $true) & (setadjoinAx = $true) & (nonemptyE1 = $true) & (exuE1 = $true) & (setunionI = $true) & (setadjoinIR = $true) & (prop2setE = $true) & (setadjoinE = $true) & (foundationAx = $true) & (emptysetAx = $true) & (emptyE1 = $true) & (upairsetIL = $true) & (setunionAx = $true) & (setadjoinOr = $true) & (setext = $true) & (exuE2 = $true) & (emptyinPowerset = $true) & (quantDeMorgan4 = $true) & (dsetconstrER = $true) & (eqinunit = $true) & (quantDeMorgan3 = $true) & (nonemptyImpWitness = $true) & (descrp = $true) & (omega0Ax = $true) & (noeltsimpempty = $true) & (quantDeMorgan1 = $true) & (replAx = $true) & (setextAx = $true) & (emptyI = $true) & (nonemptyI = $true) & ? [X0 : $i > $o,X1 : $i] : (? [X2 : $i] : (($true = (in @ X2 @ X1)) & ((X0 @ X2) != $true)) & ! [X3 : $i] : (($true != (in @ X3 @ X1)) | ($true = (X0 @ X3)))) & (nonemptyI1 = $true) & (prop2setI = $true) & (setbeta = $true) & (notdexE = $true) & (setunionE = $true) & (omegaSAx = $true) & (emptysetE = $true) & (dsetconstrI = $true) & (omegaIndAx = $true) & (subPowSU = $true) & (powersetAx = $true) & (powersetI = $true) & (emptyInPowerset = $true) & (exuE3e = $true) & (singletonsswitch = $true) & (uniqinunit = $true) & (notinemptyset = $true) & (wellorderingAx = $true) & (upairsetIR = $true) & (notinsingleton = $true) & (prop2set2propI = $true)),
% 2.13/1.44    inference(flattening,[status(thm)],[f221])).
% 2.13/1.44  thf(f221,plain,(
% 2.13/1.44    ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((? [X0 : $i > $o,X1 : $i] : (? [X2 : $i] : (($true = (in @ X2 @ X1)) & ((X0 @ X2) != $true)) & ! [X3 : $i] : (($true != (in @ X3 @ X1)) | ($true = (X0 @ X3)))) & (notdexE = $true)) & (prop2set2propI = $true)) & (prop2setI = $true)) & (quantDeMorgan4 = $true)) & (quantDeMorgan3 = $true)) & (quantDeMorgan2 = $true)) & (quantDeMorgan1 = $true)) & (vacuousDall = $true)) & (emptyE1 = $true)) & (upairsetIR = $true)) & (upairsetIL = $true)) & (upairsetE = $true)) & (singletonsswitch = $true)) & (eqinunit = $true)) & (notinsingleton = $true)) & (uniqinunit = $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)),
% 2.13/1.44    inference(ennf_transformation,[status(thm)],[f185])).
% 2.13/1.44  thf(f185,plain,(
% 2.13/1.44    ~((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) => ((uniqinunit = $true) => ((notinsingleton = $true) => ((eqinunit = $true) => ((singletonsswitch = $true) => ((upairsetE = $true) => ((upairsetIL = $true) => ((upairsetIR = $true) => ((emptyE1 = $true) => ((vacuousDall = $true) => ((quantDeMorgan1 = $true) => ((quantDeMorgan2 = $true) => ((quantDeMorgan3 = $true) => ((quantDeMorgan4 = $true) => ((prop2setI = $true) => ((prop2set2propI = $true) => ((notdexE = $true) => ! [X0 : $i > $o,X1 : $i] : (~! [X2 : $i] : (($true = (in @ X2 @ X1)) => ((X0 @ X2) = $true)) => ? [X3 : $i] : (($true != (X0 @ X3)) & ($true = (in @ X3 @ X1)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))),
% 2.13/1.44    inference(flattening,[status(thm)],[f110])).
% 2.13/1.44  thf(f110,plain,(
% 2.13/1.44    ~((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) => ((uniqinunit = $true) => ((notinsingleton = $true) => ((eqinunit = $true) => ((singletonsswitch = $true) => ((upairsetE = $true) => ((upairsetIL = $true) => ((upairsetIR = $true) => ((emptyE1 = $true) => ((vacuousDall = $true) => ((quantDeMorgan1 = $true) => ((quantDeMorgan2 = $true) => ((quantDeMorgan3 = $true) => ((quantDeMorgan4 = $true) => ((prop2setI = $true) => ((prop2set2propI = $true) => ((notdexE = $true) => ! [X0 : $i > $o,X1 : $i] : (~! [X2 : $i] : (($true = (in @ X2 @ X1)) => ((X0 @ X2) = $true)) => ? [X3 : $i] : (($true = (in @ X3 @ X1)) & ~($true = (X0 @ X3)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))),
% 2.13/1.44    inference(fool_elimination,[status(thm)],[f109])).
% 2.13/1.44  thf(f109,plain,(
% 2.13/1.44    ~(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 => (uniqinunit => (notinsingleton => (eqinunit => (singletonsswitch => (upairsetE => (upairsetIL => (upairsetIR => (emptyE1 => (vacuousDall => (quantDeMorgan1 => (quantDeMorgan2 => (quantDeMorgan3 => (quantDeMorgan4 => (prop2setI => (prop2set2propI => (notdexE => ! [X0 : $i > $o,X1 : $i] : (~! [X2 : $i] : ((in @ X2 @ X1) => (X0 @ X2)) => ? [X3 : $i] : ((in @ X3 @ X1) & ~(X0 @ X3))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))),
% 2.13/1.44    inference(rectify,[status(thm)],[f63])).
% 2.13/1.44  thf(f63,negated_conjecture,(
% 2.13/1.44    ~(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 => (uniqinunit => (notinsingleton => (eqinunit => (singletonsswitch => (upairsetE => (upairsetIL => (upairsetIR => (emptyE1 => (vacuousDall => (quantDeMorgan1 => (quantDeMorgan2 => (quantDeMorgan3 => (quantDeMorgan4 => (prop2setI => (prop2set2propI => (notdexE => ! [X0 : $i > $o,X3 : $i] : (~! [X1 : $i] : ((in @ X1 @ X3) => (X0 @ X1)) => ? [X1 : $i] : ((in @ X1 @ X3) & ~(X0 @ X1))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))),
% 2.13/1.44    inference(negated_conjecture,[status(cth)],[f62])).
% 2.13/1.44  thf(f62,conjecture,(
% 2.13/1.44    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 => (uniqinunit => (notinsingleton => (eqinunit => (singletonsswitch => (upairsetE => (upairsetIL => (upairsetIR => (emptyE1 => (vacuousDall => (quantDeMorgan1 => (quantDeMorgan2 => (quantDeMorgan3 => (quantDeMorgan4 => (prop2setI => (prop2set2propI => (notdexE => ! [X0 : $i > $o,X3 : $i] : (~! [X1 : $i] : ((in @ X1 @ X3) => (X0 @ X1)) => ? [X1 : $i] : ((in @ X1 @ X3) & ~(X0 @ X1)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))),
% 2.13/1.44    file('/export/starexec/sandbox2/tmp/tmp.lFFNRSEeHn/DTF2THF_17621.p',notdallE)).
% 2.13/1.44  thf(f1271,plain,(
% 2.13/1.44    ($true = (sK29 @ sK31))),
% 2.13/1.44    inference(trivial_inequality_removal,[status(thm)],[f1260])).
% 2.13/1.44  thf(f1260,plain,(
% 2.13/1.44    ($true != $true) | ($true = (sK29 @ sK31))),
% 2.13/1.44    inference(superposition,[status(thm)],[f622,f624])).
% 2.13/1.44  thf(f624,plain,(
% 2.13/1.44    ($true = (in @ sK31 @ sK30))),
% 2.13/1.44    inference(cnf_transformation,[status(thm)],[f314])).
% 2.13/1.44  thf(f622,plain,(
% 2.13/1.44    ( ! [X3 : $i] : (($true != (in @ X3 @ sK30)) | ($true = (sK29 @ X3))) )),
% 2.13/1.44    inference(cnf_transformation,[status(thm)],[f314])).
% 2.13/1.44  % SZS output end Proof for DTF2THF_17621
% 2.13/1.44  % (17743)------------------------------
% 2.13/1.44  % (17743)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.13/1.44  % (17743)Termination reason: Refutation
% 2.13/1.44  
% 2.13/1.44  % (17743)Memory used [KB]: 6652
% 2.13/1.44  % (17743)Time elapsed: 0.032 s
% 2.13/1.44  % (17743)Instructions burned: 89 (million)
% 2.13/1.44  % (17743)------------------------------
% 2.13/1.44  % (17743)------------------------------
% 2.13/1.44  % (17737)Success in time 0.036 s
%------------------------------------------------------------------------------