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%------------------------------------------------------------------------------
% File     : DT2H2X---1.9.5
% Problem  : SEU531^1 : 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 : n005.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 09:35:07 AM UTC 2026

% Result   : Theorem 2.09s 1.47s
% Output   : Refutation 2.09s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   14
%            Number of leaves      :    9
% Syntax   : Number of formulae    :   55 (  12 unt;   0 typ;   3 def)
%            Number of atoms       : 1149 ( 330 equ;   0 cnn)
%            Maximal formula atoms :   51 (  20 avg)
%            Number of connectives :  737 (  73   ~;  63   |; 172   &; 220   @)
%                                         (   8 <=>; 201  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   57 (  10 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :  128 ( 125 usr;  61 con; 0-3 aty)
%            Number of variables   :   79 (   0   ^;  55   !;  24   ?;  79   :)

% 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_72,type,
    sP1: $i > $i > $o ).

thf(func_def_73,type,
    sP2: $i > $o ).

thf(func_def_74,type,
    sP3: $i > $i > $o ).

thf(func_def_75,type,
    sP4: $i > $i > $o ).

thf(func_def_77,type,
    sK6: $i > $i > $o ).

thf(func_def_78,type,
    sK7: $i > $i ).

thf(func_def_79,type,
    sK8: $i > $i ).

thf(func_def_80,type,
    sK9: ( $i > $i > $o ) > $i > $i ).

thf(func_def_81,type,
    sK10: ( $i > $i > $o ) > $i > $i ).

thf(func_def_82,type,
    sK11: $i > ( $i > $i > $o ) > $i > $i ).

thf(func_def_89,type,
    sK18: $i > $o ).

thf(func_def_94,type,
    sK23: $i > $i > $i ).

thf(func_def_97,type,
    sK26: $i > $i ).

thf(func_def_107,type,
    sK36: ( $i > $o ) > $i ).

thf(func_def_108,type,
    sK37: $i > $o ).

thf(func_def_109,type,
    sK38: $i > $i ).

thf(func_def_113,type,
    sK42: $i > $o ).

thf(func_def_114,type,
    sK43: $i > $i ).

thf(func_def_115,type,
    sK44: ( $i > $o ) > $i ).

thf(func_def_123,type,
    sK52: ( $i > $o ) > $i ).

thf(func_def_124,type,
    sK53: $i > $o ).

thf(func_def_127,type,
    sK56: $i > $i > $i ).

thf(func_def_128,type,
    sK57: $i > $i > $i ).

thf(func_def_129,type,
    sK58: $i > $i > $i ).

thf(func_def_130,type,
    sK59: $i > $i > $i ).

thf(func_def_131,type,
    sK60: $i > $i > $i > $i ).

thf(func_def_132,type,
    sK61: $i > $i ).

thf(func_def_133,type,
    sK62: $i > $i ).

thf(func_def_134,type,
    sK63: $i > $i ).

thf(func_def_135,type,
    sK64: $i > $i ).

thf(func_def_136,type,
    sK65: $i > $i > $i ).

thf(func_def_137,type,
    sK66: $i > $i > $i > $i ).

thf(func_def_138,type,
    sK67: $i > $i > $i > $i ).

thf(func_def_139,type,
    sK68: $i > $i > $i ).

thf(func_def_140,type,
    sK69: $i > $i > $i ).

thf(func_def_142,type,
    sK71: $i > $i ).

thf(func_def_143,type,
    sK72: $i > $i ).

thf(func_def_144,type,
    sK73: $i > $i ).

thf(func_def_145,type,
    sK74: $i > $i > $i ).

thf(func_def_146,type,
    sK75: $i > $i ).

thf(func_def_149,type,
    sK78: $i > $i ).

thf(func_def_153,type,
    sK82: $i > $i ).

thf(func_def_156,type,
    sK85: $i > $o ).

thf(func_def_157,type,
    sK86: $o > $i > $i > $i ).

thf(func_def_167,type,
    sK96: $i > $i > $i ).

thf(func_def_175,type,
    sK104: $i > $o ).

thf(func_def_178,type,
    sK107: $i > $o ).

thf(func_def_182,type,
    sK111: $i > $i ).

thf(func_def_185,type,
    sK114: $i > $o ).

thf(func_def_187,type,
    sK116: $i > $i > $i ).

thf(func_def_188,type,
    sK117: $i > $i > $i ).

thf(func_def_191,type,
    sK120: $i > $i ).

thf(func_def_195,type,
    sK124: $i > $i > $i ).

thf(func_def_199,type,
    sK128: $i > $i ).

thf(func_def_205,type,
    sK134: $i > $o ).

thf(func_def_207,type,
    sK136: $i > $i > $i ).

thf(func_def_211,type,
    ph140: 
      !>[X0: $tType] : X0 ).

thf(f833,plain,
    $false,
    inference(avatar_sat_refutation,[status(thm)],[f777,f789,f826,f832]) ).

thf(f832,plain,
    ~ spl139_4,
    inference(avatar_contradiction_clause,[status(thm)],[f831]) ).

thf(f831,plain,
    ( $false
    | ~ spl139_4 ),
    inference(trivial_inequality_removal,[status(thm)],[f830]) ).

thf(f830,plain,
    ( ( sK48 != sK48 )
    | ~ spl139_4 ),
    inference(superposition,[status(thm)],[f556,f809]) ).

thf(f809,plain,
    ( ( sK50 = sK48 )
    | ~ spl139_4 ),
    inference(avatar_component_clause,[status(thm)],[f807]) ).

thf(f807,definition,
    ( spl139_4
  <=> ( sK50 = sK48 ) ),
    introduced(definition,[new_symbols(naming,[spl139_4])],[avatar_definition]) ).

thf(f556,plain,
    sK50 != sK48,
    inference(cnf_transformation,[status(thm)],[f302]) ).

thf(f302,plain,
    ( ( setadjoinE = $true )
    & ( wellorderingAx = $true )
    & ( setadjoinIL = $true )
    & ( notinemptyset = $true )
    & ( noeltsimpempty = $true )
    & ( singletonsswitch = $true )
    & ( emptyInPowerset = $true )
    & ( setadjoinIR = $true )
    & ( nonemptyI = $true )
    & ( replAx = $true )
    & ( emptyinPowerset = $true )
    & ( powersetAx = $true )
    & ( subPowSU = $true )
    & ( emptyI = $true )
    & ( emptysetimpfalse = $true )
    & ( setext = $true )
    & ( notinsingleton = $true )
    & ( emptyinunitempty = $true )
    & ( dsetconstrEL = $true )
    & ( setunionI = $true )
    & ( nonemptyE1 = $true )
    & ( omegaSAx = $true )
    & ( emptysetE = $true )
    & ( descrp = $true )
    & ( setunionE = $true )
    & ( nonemptyImpWitness = $true )
    & ( ( in @ sK48 @ ( setadjoin @ sK49 @ ( setadjoin @ sK50 @ emptyset ) ) )
      = $true )
    & ( sK50 != sK48 )
    & ( sK49 != sK48 )
    & ( uniqinunit = $true )
    & ( omega0Ax = $true )
    & ( exuE1 = $true )
    & ( exuE3e = $true )
    & ( foundationAx = $true )
    & ( setadjoinOr = $true )
    & ( powersetE = $true )
    & ( dsetconstrI = $true )
    & ( setextAx = $true )
    & ( powersetI = $true )
    & ( eqinunit = $true )
    & ( nonemptyI1 = $true )
    & ( setadjoinAx = $true )
    & ( dsetconstrER = $true )
    & ( setbeta = $true )
    & ( prop2setE = $true )
    & ( emptysetAx = $true )
    & ( omegaIndAx = $true )
    & ( setunionAx = $true )
    & ( setoftrueEq = $true )
    & ( exuE2 = $true ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK48,sK49,sK50])],[f170,f301]) ).

thf(f301,plain,
    ( ? [X0: $i,X1: $i,X2: $i] :
        ( ( $true
          = ( in @ X0 @ ( setadjoin @ X1 @ ( setadjoin @ X2 @ emptyset ) ) ) )
        & ( X0 != X2 )
        & ( X0 != X1 ) )
   => ( ( ( in @ sK48 @ ( setadjoin @ sK49 @ ( setadjoin @ sK50 @ emptyset ) ) )
        = $true )
      & ( sK50 != sK48 )
      & ( sK49 != sK48 ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f170,plain,
    ( ( setadjoinE = $true )
    & ( wellorderingAx = $true )
    & ( setadjoinIL = $true )
    & ( notinemptyset = $true )
    & ( noeltsimpempty = $true )
    & ( singletonsswitch = $true )
    & ( emptyInPowerset = $true )
    & ( setadjoinIR = $true )
    & ( nonemptyI = $true )
    & ( replAx = $true )
    & ( emptyinPowerset = $true )
    & ( powersetAx = $true )
    & ( subPowSU = $true )
    & ( emptyI = $true )
    & ( emptysetimpfalse = $true )
    & ( setext = $true )
    & ( notinsingleton = $true )
    & ( emptyinunitempty = $true )
    & ( dsetconstrEL = $true )
    & ( setunionI = $true )
    & ( nonemptyE1 = $true )
    & ( omegaSAx = $true )
    & ( emptysetE = $true )
    & ( descrp = $true )
    & ( setunionE = $true )
    & ( nonemptyImpWitness = $true )
    & ? [X0: $i,X1: $i,X2: $i] :
        ( ( $true
          = ( in @ X0 @ ( setadjoin @ X1 @ ( setadjoin @ X2 @ emptyset ) ) ) )
        & ( X0 != X2 )
        & ( X0 != X1 ) )
    & ( uniqinunit = $true )
    & ( omega0Ax = $true )
    & ( exuE1 = $true )
    & ( exuE3e = $true )
    & ( foundationAx = $true )
    & ( setadjoinOr = $true )
    & ( powersetE = $true )
    & ( dsetconstrI = $true )
    & ( setextAx = $true )
    & ( powersetI = $true )
    & ( eqinunit = $true )
    & ( nonemptyI1 = $true )
    & ( setadjoinAx = $true )
    & ( dsetconstrER = $true )
    & ( setbeta = $true )
    & ( prop2setE = $true )
    & ( emptysetAx = $true )
    & ( omegaIndAx = $true )
    & ( setunionAx = $true )
    & ( setoftrueEq = $true )
    & ( exuE2 = $true ) ),
    inference(flattening,[status(thm)],[f169]) ).

thf(f169,plain,
    ( ? [X0: $i,X1: $i,X2: $i] :
        ( ( X0 != X2 )
        & ( X0 != X1 )
        & ( $true
          = ( in @ X0 @ ( setadjoin @ X1 @ ( setadjoin @ X2 @ emptyset ) ) ) ) )
    & ( 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)],[f105]) ).

thf(f105,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 )
                                                                                                 => ! [X0: $i,X1: $i,X2: $i] :
                                                                                                      ( ( $true
                                                                                                        = ( in @ X0 @ ( setadjoin @ X1 @ ( setadjoin @ X2 @ emptyset ) ) ) )
                                                                                                     => ( ( X0 = X2 )
                                                                                                        | ( X0 = X1 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    inference(fool_elimination,[status(thm)],[f104]) ).

thf(f104,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
                                                                                                 => ! [X0: $i,X1: $i,X2: $i] :
                                                                                                      ( ( in @ X0 @ ( setadjoin @ X1 @ ( setadjoin @ X2 @ emptyset ) ) )
                                                                                                     => ( ( X0 = X2 )
                                                                                                        | ( X0 = X1 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    inference(rectify,[status(thm)],[f52]) ).

thf(f52,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
                                                                                                 => ! [X8: $i,X1: $i,X2: $i] :
                                                                                                      ( ( in @ X8 @ ( setadjoin @ X1 @ ( setadjoin @ X2 @ emptyset ) ) )
                                                                                                     => ( ( X2 = X8 )
                                                                                                        | ( X1 = X8 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    inference(negated_conjecture,[status(cth)],[f51]) ).

thf(f51,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
                                                                                               => ! [X8: $i,X1: $i,X2: $i] :
                                                                                                    ( ( in @ X8 @ ( setadjoin @ X1 @ ( setadjoin @ X2 @ emptyset ) ) )
                                                                                                   => ( ( X2 = X8 )
                                                                                                      | ( X1 = X8 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    file('/export/starexec/sandbox2/tmp/tmp.PJlHxzAzZQ/DTF2THF_25445.p',upairsetE) ).

thf(f826,plain,
    ( spl139_4
    | ~ spl139_1 ),
    inference(avatar_split_clause,[status(thm)],[f803,f767,f807]) ).

thf(f767,definition,
    ( spl139_1
  <=> ( ( in @ sK48 @ ( setadjoin @ sK50 @ emptyset ) )
      = $true ) ),
    introduced(definition,[new_symbols(naming,[spl139_1])],[avatar_definition]) ).

thf(f803,plain,
    ( ( sK50 = sK48 )
    | ~ spl139_1 ),
    inference(trivial_inequality_removal,[status(thm)],[f802]) ).

thf(f802,plain,
    ( ( $true != $true )
    | ( sK50 = sK48 )
    | ~ spl139_1 ),
    inference(forward_demodulation,[status(thm)],[f801,f554]) ).

thf(f554,plain,
    uniqinunit = $true,
    inference(cnf_transformation,[status(thm)],[f302]) ).

thf(f801,plain,
    ( ( uniqinunit != $true )
    | ( sK50 = sK48 )
    | ~ spl139_1 ),
    inference(trivial_inequality_removal,[status(thm)],[f791]) ).

thf(f791,plain,
    ( ( uniqinunit != $true )
    | ( sK50 = sK48 )
    | ( $true != $true )
    | ~ spl139_1 ),
    inference(superposition,[status(thm)],[f634,f769]) ).

thf(f769,plain,
    ( ( ( in @ sK48 @ ( setadjoin @ sK50 @ emptyset ) )
      = $true )
    | ~ spl139_1 ),
    inference(avatar_component_clause,[status(thm)],[f767]) ).

thf(f634,plain,
    ! [X2: $i,X3: $i] :
      ( ( $true
       != ( in @ X2 @ ( setadjoin @ X3 @ emptyset ) ) )
      | ( uniqinunit != $true )
      | ( X2 = X3 ) ),
    inference(cnf_transformation,[status(thm)],[f357]) ).

thf(f357,plain,
    ( ( ( uniqinunit = $true )
      | ( ( ( in @ sK79 @ ( setadjoin @ sK80 @ emptyset ) )
          = $true )
        & ( sK79 != sK80 ) ) )
    & ( ! [X2: $i,X3: $i] :
          ( ( $true
           != ( in @ X2 @ ( setadjoin @ X3 @ emptyset ) ) )
          | ( X2 = X3 ) )
      | ( uniqinunit != $true ) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK79,sK80])],[f355,f356]) ).

thf(f356,plain,
    ( ? [X0: $i,X1: $i] :
        ( ( ( in @ X0 @ ( setadjoin @ X1 @ emptyset ) )
          = $true )
        & ( X0 != X1 ) )
   => ( ( ( in @ sK79 @ ( setadjoin @ sK80 @ emptyset ) )
        = $true )
      & ( sK79 != sK80 ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f355,plain,
    ( ( ( uniqinunit = $true )
      | ? [X0: $i,X1: $i] :
          ( ( ( in @ X0 @ ( setadjoin @ X1 @ emptyset ) )
            = $true )
          & ( X0 != X1 ) ) )
    & ( ! [X2: $i,X3: $i] :
          ( ( $true
           != ( in @ X2 @ ( setadjoin @ X3 @ emptyset ) ) )
          | ( X2 = X3 ) )
      | ( uniqinunit != $true ) ) ),
    inference(rectify,[status(thm)],[f354]) ).

thf(f354,plain,
    ( ( ( uniqinunit = $true )
      | ? [X0: $i,X1: $i] :
          ( ( ( in @ X0 @ ( setadjoin @ X1 @ emptyset ) )
            = $true )
          & ( X0 != X1 ) ) )
    & ( ! [X0: $i,X1: $i] :
          ( ( ( in @ X0 @ ( setadjoin @ X1 @ emptyset ) )
           != $true )
          | ( X0 = X1 ) )
      | ( uniqinunit != $true ) ) ),
    inference(nnf_transformation,[status(thm)],[f182]) ).

thf(f182,plain,
    ( ( uniqinunit = $true )
  <=> ! [X0: $i,X1: $i] :
        ( ( ( in @ X0 @ ( setadjoin @ X1 @ emptyset ) )
         != $true )
        | ( X0 = X1 ) ) ),
    inference(ennf_transformation,[status(thm)],[f57]) ).

thf(f57,plain,
    ( ! [X0: $i,X1: $i] :
        ( ( ( in @ X0 @ ( setadjoin @ X1 @ emptyset ) )
          = $true )
       => ( X0 = X1 ) )
  <=> ( uniqinunit = $true ) ),
    inference(fool_elimination,[status(thm)],[f56]) ).

thf(f56,plain,
    ! [X0: $i,X1: $i] :
      ( ( ( in @ X0 @ ( setadjoin @ X1 @ emptyset ) )
       => ( X0 = X1 ) )
      = uniqinunit ),
    inference(rectify,[status(thm)],[f47]) ).

thf(f47,axiom,
    ! [X1: $i,X2: $i] :
      ( ( ( in @ X1 @ ( setadjoin @ X2 @ emptyset ) )
       => ( X1 = X2 ) )
      = uniqinunit ),
    file('/export/starexec/sandbox2/tmp/tmp.PJlHxzAzZQ/DTF2THF_25445.p',uniqinunit) ).

thf(f789,plain,
    ~ spl139_2,
    inference(avatar_contradiction_clause,[status(thm)],[f788]) ).

thf(f788,plain,
    ( $false
    | ~ spl139_2 ),
    inference(trivial_inequality_removal,[status(thm)],[f787]) ).

thf(f787,plain,
    ( ( sK48 != sK48 )
    | ~ spl139_2 ),
    inference(superposition,[status(thm)],[f555,f773]) ).

thf(f773,plain,
    ( ( sK49 = sK48 )
    | ~ spl139_2 ),
    inference(avatar_component_clause,[status(thm)],[f771]) ).

thf(f771,definition,
    ( spl139_2
  <=> ( sK49 = sK48 ) ),
    introduced(definition,[new_symbols(naming,[spl139_2])],[avatar_definition]) ).

thf(f555,plain,
    sK49 != sK48,
    inference(cnf_transformation,[status(thm)],[f302]) ).

thf(f777,plain,
    ( spl139_2
    | spl139_1 ),
    inference(avatar_split_clause,[status(thm)],[f776,f767,f771]) ).

thf(f776,plain,
    ( ( ( in @ sK48 @ ( setadjoin @ sK50 @ emptyset ) )
      = $true )
    | ( sK49 = sK48 ) ),
    inference(trivial_inequality_removal,[status(thm)],[f775]) ).

thf(f775,plain,
    ( ( sK49 = sK48 )
    | ( $true != $true )
    | ( ( in @ sK48 @ ( setadjoin @ sK50 @ emptyset ) )
      = $true ) ),
    inference(forward_demodulation,[status(thm)],[f762,f549]) ).

thf(f549,plain,
    setadjoinOr = $true,
    inference(cnf_transformation,[status(thm)],[f302]) ).

thf(f762,plain,
    ( ( ( in @ sK48 @ ( setadjoin @ sK50 @ emptyset ) )
      = $true )
    | ( setadjoinOr != $true )
    | ( sK49 = sK48 ) ),
    inference(trivial_inequality_removal,[status(thm)],[f756]) ).

thf(f756,plain,
    ( ( sK49 = sK48 )
    | ( $true != $true )
    | ( ( in @ sK48 @ ( setadjoin @ sK50 @ emptyset ) )
      = $true )
    | ( setadjoinOr != $true ) ),
    inference(superposition,[status(thm)],[f505,f557]) ).

thf(f557,plain,
    ( ( in @ sK48 @ ( setadjoin @ sK49 @ ( setadjoin @ sK50 @ emptyset ) ) )
    = $true ),
    inference(cnf_transformation,[status(thm)],[f302]) ).

thf(f505,plain,
    ! [X2: $i,X0: $i,X1: $i] :
      ( ( $true
       != ( in @ X2 @ ( setadjoin @ X0 @ X1 ) ) )
      | ( ( in @ X2 @ X1 )
        = $true )
      | ( X0 = X2 )
      | ( setadjoinOr != $true ) ),
    inference(cnf_transformation,[status(thm)],[f263]) ).

thf(f263,plain,
    ( ( ! [X0: $i,X1: $i,X2: $i] :
          ( ( $true
           != ( in @ X2 @ ( setadjoin @ X0 @ X1 ) ) )
          | ( X0 = X2 )
          | ( ( in @ X2 @ X1 )
            = $true ) )
      | ( setadjoinOr != $true ) )
    & ( ( setadjoinOr = $true )
      | ( ( ( in @ sK31 @ ( setadjoin @ sK29 @ sK30 ) )
          = $true )
        & ( sK29 != sK31 )
        & ( $true
         != ( in @ sK31 @ sK30 ) ) ) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK29,sK30,sK31])],[f261,f262]) ).

thf(f262,plain,
    ( ? [X3: $i,X4: $i,X5: $i] :
        ( ( ( in @ X5 @ ( setadjoin @ X3 @ X4 ) )
          = $true )
        & ( X3 != X5 )
        & ( ( in @ X5 @ X4 )
         != $true ) )
   => ( ( ( in @ sK31 @ ( setadjoin @ sK29 @ sK30 ) )
        = $true )
      & ( sK29 != sK31 )
      & ( $true
       != ( in @ sK31 @ sK30 ) ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f261,plain,
    ( ( ! [X0: $i,X1: $i,X2: $i] :
          ( ( $true
           != ( in @ X2 @ ( setadjoin @ X0 @ X1 ) ) )
          | ( X0 = X2 )
          | ( ( in @ X2 @ X1 )
            = $true ) )
      | ( setadjoinOr != $true ) )
    & ( ( setadjoinOr = $true )
      | ? [X3: $i,X4: $i,X5: $i] :
          ( ( ( in @ X5 @ ( setadjoin @ X3 @ X4 ) )
            = $true )
          & ( X3 != X5 )
          & ( ( in @ X5 @ X4 )
           != $true ) ) ) ),
    inference(rectify,[status(thm)],[f260]) ).

thf(f260,plain,
    ( ( ! [X0: $i,X1: $i,X2: $i] :
          ( ( $true
           != ( in @ X2 @ ( setadjoin @ X0 @ X1 ) ) )
          | ( X0 = X2 )
          | ( ( in @ X2 @ X1 )
            = $true ) )
      | ( setadjoinOr != $true ) )
    & ( ( setadjoinOr = $true )
      | ? [X0: $i,X1: $i,X2: $i] :
          ( ( $true
            = ( in @ X2 @ ( setadjoin @ X0 @ X1 ) ) )
          & ( X0 != X2 )
          & ( ( in @ X2 @ X1 )
           != $true ) ) ) ),
    inference(nnf_transformation,[status(thm)],[f179]) ).

thf(f179,plain,
    ( ! [X0: $i,X1: $i,X2: $i] :
        ( ( $true
         != ( in @ X2 @ ( setadjoin @ X0 @ X1 ) ) )
        | ( X0 = X2 )
        | ( ( in @ X2 @ X1 )
          = $true ) )
  <=> ( setadjoinOr = $true ) ),
    inference(flattening,[status(thm)],[f178]) ).

thf(f178,plain,
    ( ! [X0: $i,X1: $i,X2: $i] :
        ( ( X0 = X2 )
        | ( ( in @ X2 @ X1 )
          = $true )
        | ( $true
         != ( in @ X2 @ ( setadjoin @ X0 @ X1 ) ) ) )
  <=> ( setadjoinOr = $true ) ),
    inference(ennf_transformation,[status(thm)],[f146]) ).

thf(f146,plain,
    ( ! [X0: $i,X1: $i,X2: $i] :
        ( ( $true
          = ( in @ X2 @ ( setadjoin @ X0 @ X1 ) ) )
       => ( ( X0 = X2 )
          | ( ( in @ X2 @ X1 )
            = $true ) ) )
  <=> ( setadjoinOr = $true ) ),
    inference(fool_elimination,[status(thm)],[f145]) ).

thf(f145,plain,
    ! [X0: $i,X1: $i,X2: $i] :
      ( ( ( in @ X2 @ ( setadjoin @ X0 @ X1 ) )
       => ( ( in @ X2 @ X1 )
          | ( X0 = X2 ) ) )
      = setadjoinOr ),
    inference(rectify,[status(thm)],[f36]) ).

thf(f36,axiom,
    ! [X1: $i,X3: $i,X2: $i] :
      ( ( ( in @ X2 @ ( setadjoin @ X1 @ X3 ) )
       => ( ( in @ X2 @ X3 )
          | ( X1 = X2 ) ) )
      = setadjoinOr ),
    file('/export/starexec/sandbox2/tmp/tmp.PJlHxzAzZQ/DTF2THF_25445.p',setadjoinOr) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.12/0.13  % Problem  : SEU531^1 : TPTP v9.2.1. Released v3.7.0.
% 0.12/0.14  % Command  : /export/starexec/sandbox2/solver/bin/run_DT2H2X /export/starexec/sandbox2/benchmark/theBenchmark.p 300
% 0.16/0.35  % Computer : n005.cluster.edu
% 0.16/0.35  % Model    : x86_64 x86_64
% 0.16/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.16/0.35  % Memory   : 8042.1875MB
% 0.16/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.16/0.35  % CPULimit : 300
% 0.16/0.35  % WCLimit  : 300
% 0.16/0.35  % DateTime : Tue Feb 24 12:25:44 EST 2026
% 0.16/0.35  % CPUTime  : 
% 0.16/0.35  Running /export/starexec/sandbox2/solver/bin/run_DT2H2X /export/starexec/sandbox2/benchmark/theBenchmark.p 300
% 0.28/0.47  ---- Original DTF file ---
% 0.28/0.47  thf(spec,logic,$$dhol).
% 0.28/0.47  %------------------------------------------------------------------------------
% 0.28/0.47  % File     : SEU531^1 : TPTP v9.2.1. Released v3.7.0.
% 0.28/0.47  % Domain   : Set Theory
% 0.28/0.47  % Problem  : Preliminary Notions - Equality Laws
% 0.28/0.47  % Version  : Especial.
% 0.28/0.47  % English  : (! x:i.! y:i.! z:i.in z (setadjoin x (setadjoin y emptyset)) ->
% 0.28/0.47  %            z = x | z = y)
% 0.28/0.47  
% 0.28/0.47  % Refs     : [Bro08] Brown (2008), Email to G. Sutcliffe
% 0.28/0.47  % Source   : [Bro08]
% 0.28/0.47  % Names    : ZFC033g [Bro08]
% 0.28/0.47  
% 0.28/0.47  % Status   : Theorem
% 0.28/0.47  % Rating   : 0.11 v9.1.0, 0.12 v9.0.0, 0.30 v8.2.0, 0.31 v8.1.0, 0.09 v7.5.0, 0.00 v7.4.0, 0.11 v7.2.0, 0.00 v7.1.0, 0.25 v7.0.0, 0.14 v6.4.0, 0.17 v6.3.0, 0.20 v6.2.0, 0.14 v6.1.0, 0.29 v5.5.0, 0.33 v5.4.0, 0.40 v5.1.0, 0.60 v5.0.0, 0.40 v4.1.0, 0.67 v3.7.0
% 0.28/0.47  % Syntax   : Number of formulae    :  109 (  50 unt;  58 typ;  50 def)
% 0.28/0.47  %            Number of atoms       :  279 (  68 equ;   0 cnn)
% 0.28/0.47  %            Maximal formula atoms :   50 (   5 avg)
% 0.28/0.47  %            Number of connectives :  454 (   9   ~;   5   |;  19   &; 297   @)
% 0.28/0.47  %                                         (   8 <=>; 116  =>;   0  <=;   0 <~>)
% 0.28/0.47  %            Maximal formula depth :   56 (   2 avg)
% 0.28/0.47  %            Number of types       :    2 (   0 usr)
% 0.28/0.47  %            Number of type conns  :   27 (  27   >;   0   *;   0   +;   0  <<)
% 0.28/0.47  %            Number of symbols     :   61 (  58 usr;  51 con; 0-2 aty)
% 0.28/0.47  %            Number of variables   :  149 (  16   ^; 115   !;  18   ?; 149   :)
% 0.28/0.47  % SPC      : TH0_THM_EQU_NAR
% 0.28/0.47  
% 0.28/0.47  % Comments : http://mathgate.info/detsetitem.php?id=504
% 0.28/0.47  %------------------------------------------------------------------------------
% 0.28/0.47  thf(in_type,type,
% 0.28/0.47      in: $i > $i > $o ).
% 0.28/0.47  
% 0.28/0.47  thf(exu_type,type,
% 0.28/0.47      exu: ( $i > $o ) > $o ).
% 0.28/0.47  
% 0.28/0.47  thf(exu,definition,
% 0.28/0.47      ( exu
% 0.28/0.47      = ( ^ [Xphi: $i > $o] :
% 0.28/0.47          ? [Xx: $i] :
% 0.28/0.47            ( ( Xphi @ Xx )
% 0.28/0.47            & ! [Xy: $i] :
% 0.28/0.47                ( ( Xphi @ Xy )
% 0.28/0.47               => ( Xx = Xy ) ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(setextAx_type,type,
% 0.28/0.47      setextAx: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(setextAx,definition,
% 0.28/0.47      ( setextAx
% 0.28/0.47      = ( ! [A: $i,B: $i] :
% 0.28/0.47            ( ! [Xx: $i] :
% 0.28/0.47                ( ( in @ Xx @ A )
% 0.28/0.47              <=> ( in @ Xx @ B ) )
% 0.28/0.47           => ( A = B ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(emptyset_type,type,
% 0.28/0.47      emptyset: $i ).
% 0.28/0.47  
% 0.28/0.47  thf(emptysetAx_type,type,
% 0.28/0.47      emptysetAx: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(emptysetAx,definition,
% 0.28/0.47      ( emptysetAx
% 0.28/0.47      = ( ! [Xx: $i] :
% 0.28/0.47            ~ ( in @ Xx @ emptyset ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(setadjoin_type,type,
% 0.28/0.47      setadjoin: $i > $i > $i ).
% 0.28/0.47  
% 0.28/0.47  thf(setadjoinAx_type,type,
% 0.28/0.47      setadjoinAx: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(setadjoinAx,definition,
% 0.28/0.47      ( setadjoinAx
% 0.28/0.47      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 0.28/0.47            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 0.28/0.47          <=> ( ( Xy = Xx )
% 0.28/0.47              | ( in @ Xy @ A ) ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(powerset_type,type,
% 0.28/0.47      powerset: $i > $i ).
% 0.28/0.47  
% 0.28/0.47  thf(powersetAx_type,type,
% 0.28/0.47      powersetAx: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(powersetAx,definition,
% 0.28/0.47      ( powersetAx
% 0.28/0.47      = ( ! [A: $i,B: $i] :
% 0.28/0.47            ( ( in @ B @ ( powerset @ A ) )
% 0.28/0.47          <=> ! [Xx: $i] :
% 0.28/0.47                ( ( in @ Xx @ B )
% 0.28/0.47               => ( in @ Xx @ A ) ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(setunion_type,type,
% 0.28/0.47      setunion: $i > $i ).
% 0.28/0.47  
% 0.28/0.47  thf(setunionAx_type,type,
% 0.28/0.47      setunionAx: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(setunionAx,definition,
% 0.28/0.47      ( setunionAx
% 0.28/0.47      = ( ! [A: $i,Xx: $i] :
% 0.28/0.47            ( ( in @ Xx @ ( setunion @ A ) )
% 0.28/0.47          <=> ? [B: $i] :
% 0.28/0.47                ( ( in @ Xx @ B )
% 0.28/0.47                & ( in @ B @ A ) ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(omega_type,type,
% 0.28/0.47      omega: $i ).
% 0.28/0.47  
% 0.28/0.47  thf(omega0Ax_type,type,
% 0.28/0.47      omega0Ax: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(omega0Ax,definition,
% 0.28/0.47      ( omega0Ax
% 0.28/0.47      = ( in @ emptyset @ omega ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(omegaSAx_type,type,
% 0.28/0.47      omegaSAx: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(omegaSAx,definition,
% 0.28/0.47      ( omegaSAx
% 0.28/0.47      = ( ! [Xx: $i] :
% 0.28/0.47            ( ( in @ Xx @ omega )
% 0.28/0.47           => ( in @ ( setadjoin @ Xx @ Xx ) @ omega ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(omegaIndAx_type,type,
% 0.28/0.47      omegaIndAx: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(omegaIndAx,definition,
% 0.28/0.47      ( omegaIndAx
% 0.28/0.47      = ( ! [A: $i] :
% 0.28/0.47            ( ( ( in @ emptyset @ A )
% 0.28/0.47              & ! [Xx: $i] :
% 0.28/0.47                  ( ( ( in @ Xx @ omega )
% 0.28/0.47                    & ( in @ Xx @ A ) )
% 0.28/0.47                 => ( in @ ( setadjoin @ Xx @ Xx ) @ A ) ) )
% 0.28/0.47           => ! [Xx: $i] :
% 0.28/0.47                ( ( in @ Xx @ omega )
% 0.28/0.47               => ( in @ Xx @ A ) ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(replAx_type,type,
% 0.28/0.47      replAx: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(replAx,definition,
% 0.28/0.47      ( replAx
% 0.28/0.47      = ( ! [Xphi: $i > $i > $o,A: $i] :
% 0.28/0.47            ( ! [Xx: $i] :
% 0.28/0.47                ( ( in @ Xx @ A )
% 0.28/0.47               => ( exu
% 0.28/0.47                  @ ^ [Xy: $i] : ( Xphi @ Xx @ Xy ) ) )
% 0.28/0.47           => ? [B: $i] :
% 0.28/0.47              ! [Xx: $i] :
% 0.28/0.47                ( ( in @ Xx @ B )
% 0.28/0.47              <=> ? [Xy: $i] :
% 0.28/0.47                    ( ( in @ Xy @ A )
% 0.28/0.47                    & ( Xphi @ Xy @ Xx ) ) ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(foundationAx_type,type,
% 0.28/0.47      foundationAx: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(foundationAx,definition,
% 0.28/0.47      ( foundationAx
% 0.28/0.47      = ( ! [A: $i] :
% 0.28/0.47            ( ? [Xx: $i] : ( in @ Xx @ A )
% 0.28/0.47           => ? [B: $i] :
% 0.28/0.47                ( ( in @ B @ A )
% 0.28/0.47                & ~ ? [Xx: $i] :
% 0.28/0.47                      ( ( in @ Xx @ B )
% 0.28/0.47                      & ( in @ Xx @ A ) ) ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(wellorderingAx_type,type,
% 0.28/0.47      wellorderingAx: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(wellorderingAx,definition,
% 0.28/0.47      ( wellorderingAx
% 0.28/0.47      = ( ! [A: $i] :
% 0.28/0.47          ? [B: $i] :
% 0.28/0.47            ( ! [C: $i] :
% 0.28/0.47                ( ( in @ C @ B )
% 0.28/0.47               => ! [Xx: $i] :
% 0.28/0.47                    ( ( in @ Xx @ C )
% 0.28/0.47                   => ( in @ Xx @ A ) ) )
% 0.28/0.47            & ! [Xx: $i,Xy: $i] :
% 0.28/0.47                ( ( ( in @ Xx @ A )
% 0.28/0.47                  & ( in @ Xy @ A ) )
% 0.28/0.47               => ( ! [C: $i] :
% 0.28/0.47                      ( ( in @ C @ B )
% 0.28/0.47                     => ( ( in @ Xx @ C )
% 0.28/0.47                      <=> ( in @ Xy @ C ) ) )
% 0.28/0.47                 => ( Xx = Xy ) ) )
% 0.28/0.47            & ! [C: $i,D: $i] :
% 0.28/0.47                ( ( ( in @ C @ B )
% 0.28/0.47                  & ( in @ D @ B ) )
% 0.28/0.47               => ( ! [Xx: $i] :
% 0.28/0.47                      ( ( in @ Xx @ C )
% 0.28/0.47                     => ( in @ Xx @ D ) )
% 0.28/0.47                  | ! [Xx: $i] :
% 0.28/0.47                      ( ( in @ Xx @ D )
% 0.28/0.47                     => ( in @ Xx @ C ) ) ) )
% 0.28/0.47            & ! [C: $i] :
% 0.28/0.47                ( ( ! [Xx: $i] :
% 0.28/0.47                      ( ( in @ Xx @ C )
% 0.28/0.47                     => ( in @ Xx @ A ) )
% 0.28/0.47                  & ? [Xx: $i] : ( in @ Xx @ C ) )
% 0.28/0.47               => ? [D: $i,Xx: $i] :
% 0.28/0.47                    ( ( in @ D @ B )
% 0.28/0.47                    & ( in @ Xx @ C )
% 0.28/0.47                    & ~ ? [Xy: $i] :
% 0.28/0.47                          ( ( in @ Xy @ D )
% 0.28/0.47                          & ( in @ Xy @ C ) )
% 0.28/0.47                    & ! [E: $i] :
% 0.28/0.47                        ( ( in @ E @ B )
% 0.28/0.47                       => ( ! [Xy: $i] :
% 0.28/0.47                              ( ( in @ Xy @ E )
% 0.28/0.47                             => ( in @ Xy @ D ) )
% 0.28/0.47                          | ( in @ Xx @ E ) ) ) ) ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(descr_type,type,
% 0.28/0.47      descr: ( $i > $o ) > $i ).
% 0.28/0.47  
% 0.28/0.47  thf(descrp_type,type,
% 0.28/0.47      descrp: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(descrp,definition,
% 0.28/0.47      ( descrp
% 0.28/0.47      = ( ! [Xphi: $i > $o] :
% 0.28/0.47            ( ( exu
% 0.28/0.47              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.28/0.47           => ( Xphi
% 0.28/0.47              @ ( descr
% 0.28/0.47                @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(dsetconstr_type,type,
% 0.28/0.47      dsetconstr: $i > ( $i > $o ) > $i ).
% 0.28/0.47  
% 0.28/0.47  thf(dsetconstrI_type,type,
% 0.28/0.47      dsetconstrI: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(dsetconstrI,definition,
% 0.28/0.47      ( dsetconstrI
% 0.28/0.47      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.28/0.47            ( ( in @ Xx @ A )
% 0.28/0.47           => ( ( Xphi @ Xx )
% 0.28/0.47             => ( in @ Xx
% 0.28/0.47                @ ( dsetconstr @ A
% 0.28/0.47                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(dsetconstrEL_type,type,
% 0.28/0.47      dsetconstrEL: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(dsetconstrEL,definition,
% 0.28/0.47      ( dsetconstrEL
% 0.28/0.47      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.28/0.47            ( ( in @ Xx
% 0.28/0.47              @ ( dsetconstr @ A
% 0.28/0.47                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 0.28/0.47           => ( in @ Xx @ A ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(dsetconstrER_type,type,
% 0.28/0.47      dsetconstrER: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(dsetconstrER,definition,
% 0.28/0.47      ( dsetconstrER
% 0.28/0.47      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.28/0.47            ( ( in @ Xx
% 0.28/0.47              @ ( dsetconstr @ A
% 0.28/0.47                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 0.28/0.47           => ( Xphi @ Xx ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(exuE1_type,type,
% 0.28/0.47      exuE1: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(exuE1,definition,
% 0.28/0.47      ( exuE1
% 0.28/0.47      = ( ! [Xphi: $i > $o] :
% 0.28/0.47            ( ( exu
% 0.28/0.47              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.28/0.47           => ? [Xx: $i] :
% 0.28/0.47                ( ( Xphi @ Xx )
% 0.28/0.47                & ! [Xy: $i] :
% 0.28/0.47                    ( ( Xphi @ Xy )
% 0.28/0.47                   => ( Xx = Xy ) ) ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(prop2set_type,type,
% 0.28/0.47      prop2set: $o > $i ).
% 0.28/0.47  
% 0.28/0.47  thf(prop2set,definition,
% 0.28/0.47      ( prop2set
% 0.28/0.47      = ( ^ [Xphi: $o] :
% 0.28/0.47            ( dsetconstr @ ( powerset @ emptyset )
% 0.28/0.47            @ ^ [Xx: $i] : Xphi ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(prop2setE_type,type,
% 0.28/0.47      prop2setE: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(prop2setE,definition,
% 0.28/0.47      ( prop2setE
% 0.28/0.47      = ( ! [Xphi: $o,Xx: $i] :
% 0.28/0.47            ( ( in @ Xx @ ( prop2set @ Xphi ) )
% 0.28/0.47           => Xphi ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(emptysetE_type,type,
% 0.28/0.47      emptysetE: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(emptysetE,definition,
% 0.28/0.47      ( emptysetE
% 0.28/0.47      = ( ! [Xx: $i] :
% 0.28/0.47            ( ( in @ Xx @ emptyset )
% 0.28/0.47           => ! [Xphi: $o] : Xphi ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(emptysetimpfalse_type,type,
% 0.28/0.47      emptysetimpfalse: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(emptysetimpfalse,definition,
% 0.28/0.47      ( emptysetimpfalse
% 0.28/0.47      = ( ! [Xx: $i] :
% 0.28/0.47            ( ( in @ Xx @ emptyset )
% 0.28/0.47           => $false ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(notinemptyset_type,type,
% 0.28/0.47      notinemptyset: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(notinemptyset,definition,
% 0.28/0.47      ( notinemptyset
% 0.28/0.47      = ( ! [Xx: $i] :
% 0.28/0.47            ~ ( in @ Xx @ emptyset ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(exuE3e_type,type,
% 0.28/0.47      exuE3e: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(exuE3e,definition,
% 0.28/0.47      ( exuE3e
% 0.28/0.47      = ( ! [Xphi: $i > $o] :
% 0.28/0.47            ( ( exu
% 0.28/0.47              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.28/0.47           => ? [Xx: $i] : ( Xphi @ Xx ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(setext_type,type,
% 0.28/0.47      setext: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(setext,definition,
% 0.28/0.47      ( setext
% 0.28/0.47      = ( ! [A: $i,B: $i] :
% 0.28/0.47            ( ! [Xx: $i] :
% 0.28/0.47                ( ( in @ Xx @ A )
% 0.28/0.47               => ( in @ Xx @ B ) )
% 0.28/0.47           => ( ! [Xx: $i] :
% 0.28/0.47                  ( ( in @ Xx @ B )
% 0.28/0.47                 => ( in @ Xx @ A ) )
% 0.28/0.47             => ( A = B ) ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(emptyI_type,type,
% 0.28/0.47      emptyI: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(emptyI,definition,
% 0.28/0.47      ( emptyI
% 0.28/0.47      = ( ! [A: $i] :
% 0.28/0.47            ( ! [Xx: $i] :
% 0.28/0.47                ~ ( in @ Xx @ A )
% 0.28/0.47           => ( A = emptyset ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(noeltsimpempty_type,type,
% 0.28/0.47      noeltsimpempty: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(noeltsimpempty,definition,
% 0.28/0.47      ( noeltsimpempty
% 0.28/0.47      = ( ! [A: $i] :
% 0.28/0.47            ( ! [Xx: $i] :
% 0.28/0.47                ~ ( in @ Xx @ A )
% 0.28/0.47           => ( A = emptyset ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(setbeta_type,type,
% 0.28/0.47      setbeta: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(setbeta,definition,
% 0.28/0.47      ( setbeta
% 0.28/0.47      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.28/0.47            ( ( in @ Xx @ A )
% 0.28/0.47           => ( ( in @ Xx
% 0.28/0.47                @ ( dsetconstr @ A
% 0.28/0.47                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 0.28/0.47            <=> ( Xphi @ Xx ) ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(nonempty_type,type,
% 0.28/0.47      nonempty: $i > $o ).
% 0.28/0.47  
% 0.28/0.47  thf(nonempty,definition,
% 0.28/0.47      ( nonempty
% 0.28/0.47      = ( ^ [Xx: $i] : ( Xx != emptyset ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(nonemptyE1_type,type,
% 0.28/0.47      nonemptyE1: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(nonemptyE1,definition,
% 0.28/0.47      ( nonemptyE1
% 0.28/0.47      = ( ! [A: $i] :
% 0.28/0.47            ( ( nonempty @ A )
% 0.28/0.47           => ? [Xx: $i] : ( in @ Xx @ A ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(nonemptyI_type,type,
% 0.28/0.47      nonemptyI: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(nonemptyI,definition,
% 0.28/0.47      ( nonemptyI
% 0.28/0.47      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.28/0.47            ( ( in @ Xx @ A )
% 0.28/0.47           => ( ( Xphi @ Xx )
% 0.28/0.47             => ( nonempty
% 0.28/0.47                @ ( dsetconstr @ A
% 0.28/0.47                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(nonemptyI1_type,type,
% 0.28/0.47      nonemptyI1: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(nonemptyI1,definition,
% 0.28/0.47      ( nonemptyI1
% 0.28/0.47      = ( ! [A: $i] :
% 0.28/0.47            ( ? [Xx: $i] : ( in @ Xx @ A )
% 0.28/0.47           => ( nonempty @ A ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(setadjoinIL_type,type,
% 0.28/0.47      setadjoinIL: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(setadjoinIL,definition,
% 0.28/0.47      ( setadjoinIL
% 0.28/0.47      = ( ! [Xx: $i,Xy: $i] : ( in @ Xx @ ( setadjoin @ Xx @ Xy ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(emptyinunitempty_type,type,
% 0.28/0.47      emptyinunitempty: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(emptyinunitempty,definition,
% 0.28/0.47      ( emptyinunitempty
% 0.28/0.47      = ( in @ emptyset @ ( setadjoin @ emptyset @ emptyset ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(setadjoinIR_type,type,
% 0.28/0.47      setadjoinIR: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(setadjoinIR,definition,
% 0.28/0.47      ( setadjoinIR
% 0.28/0.47      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 0.28/0.47            ( ( in @ Xy @ A )
% 0.28/0.47           => ( in @ Xy @ ( setadjoin @ Xx @ A ) ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(setadjoinE_type,type,
% 0.28/0.47      setadjoinE: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(setadjoinE,definition,
% 0.28/0.47      ( setadjoinE
% 0.28/0.47      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 0.28/0.47            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 0.28/0.47           => ! [Xphi: $o] :
% 0.28/0.47                ( ( ( Xy = Xx )
% 0.28/0.47                 => Xphi )
% 0.28/0.47               => ( ( ( in @ Xy @ A )
% 0.28/0.47                   => Xphi )
% 0.28/0.47                 => Xphi ) ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(setadjoinOr_type,type,
% 0.28/0.47      setadjoinOr: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(setadjoinOr,definition,
% 0.28/0.47      ( setadjoinOr
% 0.28/0.47      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 0.28/0.47            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 0.28/0.47           => ( ( Xy = Xx )
% 0.28/0.47              | ( in @ Xy @ A ) ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(setoftrueEq_type,type,
% 0.28/0.47      setoftrueEq: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(setoftrueEq,definition,
% 0.28/0.47      ( setoftrueEq
% 0.28/0.47      = ( ! [A: $i] :
% 0.28/0.47            ( ( dsetconstr @ A
% 0.28/0.47              @ ^ [Xx: $i] : $true )
% 0.28/0.47            = A ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(powersetI_type,type,
% 0.28/0.47      powersetI: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(powersetI,definition,
% 0.28/0.47      ( powersetI
% 0.28/0.47      = ( ! [A: $i,B: $i] :
% 0.28/0.47            ( ! [Xx: $i] :
% 0.28/0.47                ( ( in @ Xx @ B )
% 0.28/0.47               => ( in @ Xx @ A ) )
% 0.28/0.47           => ( in @ B @ ( powerset @ A ) ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(emptyinPowerset_type,type,
% 0.28/0.47      emptyinPowerset: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(emptyinPowerset,definition,
% 0.28/0.47      ( emptyinPowerset
% 0.28/0.47      = ( ! [A: $i] : ( in @ emptyset @ ( powerset @ A ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(emptyInPowerset_type,type,
% 0.28/0.47      emptyInPowerset: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(emptyInPowerset,definition,
% 0.28/0.47      ( emptyInPowerset
% 0.28/0.47      = ( ! [A: $i] : ( in @ emptyset @ ( powerset @ A ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(powersetE_type,type,
% 0.28/0.47      powersetE: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(powersetE,definition,
% 0.28/0.47      ( powersetE
% 0.28/0.47      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.28/0.47            ( ( in @ B @ ( powerset @ A ) )
% 0.28/0.47           => ( ( in @ Xx @ B )
% 0.28/0.47             => ( in @ Xx @ A ) ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(setunionI_type,type,
% 0.28/0.47      setunionI: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(setunionI,definition,
% 0.28/0.47      ( setunionI
% 0.28/0.47      = ( ! [A: $i,Xx: $i,B: $i] :
% 0.28/0.47            ( ( in @ Xx @ B )
% 0.28/0.47           => ( ( in @ B @ A )
% 0.28/0.47             => ( in @ Xx @ ( setunion @ A ) ) ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(setunionE_type,type,
% 0.28/0.47      setunionE: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(setunionE,definition,
% 0.28/0.47      ( setunionE
% 0.28/0.47      = ( ! [A: $i,Xx: $i] :
% 0.28/0.47            ( ( in @ Xx @ ( setunion @ A ) )
% 0.28/0.47           => ! [Xphi: $o] :
% 0.28/0.47                ( ! [B: $i] :
% 0.28/0.47                    ( ( in @ Xx @ B )
% 0.28/0.47                   => ( ( in @ B @ A )
% 0.28/0.47                     => Xphi ) )
% 0.28/0.47               => Xphi ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(subPowSU_type,type,
% 0.28/0.47      subPowSU: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(subPowSU,definition,
% 0.28/0.47      ( subPowSU
% 0.28/0.47      = ( ! [A: $i,Xx: $i] :
% 0.28/0.47            ( ( in @ Xx @ A )
% 0.28/0.47           => ( in @ Xx @ ( powerset @ ( setunion @ A ) ) ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(exuE2_type,type,
% 0.28/0.47      exuE2: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(exuE2,definition,
% 0.28/0.47      ( exuE2
% 0.28/0.47      = ( ! [Xphi: $i > $o] :
% 0.28/0.47            ( ( exu
% 0.28/0.47              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.28/0.47           => ? [Xx: $i] :
% 0.28/0.47              ! [Xy: $i] :
% 0.28/0.47                ( ( Xphi @ Xy )
% 0.28/0.47              <=> ( Xy = Xx ) ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(nonemptyImpWitness_type,type,
% 0.28/0.47      nonemptyImpWitness: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(nonemptyImpWitness,definition,
% 0.28/0.47      ( nonemptyImpWitness
% 0.28/0.47      = ( ! [A: $i] :
% 0.28/0.47            ( ( nonempty @ A )
% 0.28/0.47           => ? [Xx: $i] :
% 0.28/0.47                ( ( in @ Xx @ A )
% 0.28/0.47                & $true ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(uniqinunit_type,type,
% 0.28/0.47      uniqinunit: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(uniqinunit,definition,
% 0.28/0.47      ( uniqinunit
% 0.28/0.47      = ( ! [Xx: $i,Xy: $i] :
% 0.28/0.47            ( ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) )
% 0.28/0.47           => ( Xx = Xy ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(notinsingleton_type,type,
% 0.28/0.47      notinsingleton: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(notinsingleton,definition,
% 0.28/0.47      ( notinsingleton
% 0.28/0.47      = ( ! [Xx: $i,Xy: $i] :
% 0.28/0.47            ( ( Xx != Xy )
% 0.28/0.47           => ~ ( in @ Xy @ ( setadjoin @ Xx @ emptyset ) ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(eqinunit_type,type,
% 0.28/0.47      eqinunit: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(eqinunit,definition,
% 0.28/0.47      ( eqinunit
% 0.28/0.47      = ( ! [Xx: $i,Xy: $i] :
% 0.28/0.47            ( ( Xx = Xy )
% 0.28/0.47           => ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(singletonsswitch_type,type,
% 0.28/0.47      singletonsswitch: $o ).
% 0.28/0.47  
% 0.28/0.47  thf(singletonsswitch,definition,
% 0.28/0.47      ( singletonsswitch
% 0.28/0.47      = ( ! [Xx: $i,Xy: $i] :
% 0.28/0.47            ( ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) )
% 0.28/0.47           => ( in @ Xy @ ( setadjoin @ Xx @ emptyset ) ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  thf(upairsetE,conjecture,
% 0.28/0.47      ( setextAx
% 0.28/0.47     => ( emptysetAx
% 0.28/0.47       => ( setadjoinAx
% 0.28/0.47         => ( powersetAx
% 0.28/0.47           => ( setunionAx
% 0.28/0.47             => ( omega0Ax
% 0.28/0.47               => ( omegaSAx
% 0.28/0.47                 => ( omegaIndAx
% 0.28/0.47                   => ( replAx
% 0.28/0.47                     => ( foundationAx
% 0.28/0.47                       => ( wellorderingAx
% 0.28/0.47                         => ( descrp
% 0.28/0.47                           => ( dsetconstrI
% 0.28/0.47                             => ( dsetconstrEL
% 0.28/0.47                               => ( dsetconstrER
% 0.28/0.47                                 => ( exuE1
% 0.28/0.47                                   => ( prop2setE
% 0.28/0.47                                     => ( emptysetE
% 0.28/0.47                                       => ( emptysetimpfalse
% 0.28/0.47                                         => ( notinemptyset
% 0.28/0.47                                           => ( exuE3e
% 0.28/0.47                                             => ( setext
% 0.28/0.47                                               => ( emptyI
% 0.28/0.47                                                 => ( noeltsimpempty
% 0.28/0.47                                                   => ( setbeta
% 0.28/0.47                                                     => ( nonemptyE1
% 0.28/0.47                                                       => ( nonemptyI
% 0.28/0.47                                                         => ( nonemptyI1
% 0.28/0.47                                                           => ( setadjoinIL
% 0.28/0.47                                                             => ( emptyinunitempty
% 0.28/0.47                                                               => ( setadjoinIR
% 0.28/0.47                                                                 => ( setadjoinE
% 0.28/0.47                                                                   => ( setadjoinOr
% 0.28/0.47                                                                     => ( setoftrueEq
% 0.28/0.47                                                                       => ( powersetI
% 0.28/0.47                                                                         => ( emptyinPowerset
% 0.28/0.47                                                                           => ( emptyInPowerset
% 0.28/0.47                                                                             => ( powersetE
% 0.28/0.47                                                                               => ( setunionI
% 0.28/0.47                                                                                 => ( setunionE
% 0.28/0.47                                                                                   => ( subPowSU
% 0.28/0.47                                                                                     => ( exuE2
% 0.28/0.47                                                                                       => ( nonemptyImpWitness
% 0.28/0.47                                                                                         => ( uniqinunit
% 0.28/0.47                                                                                           => ( notinsingleton
% 0.28/0.47                                                                                             => ( eqinunit
% 0.28/0.47                                                                                               => ( singletonsswitch
% 0.28/0.47                                                                                                 => ! [Xx: $i,Xy: $i,Xz: $i] :
% 0.28/0.47                                                                                                      ( ( in @ Xz @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) )
% 0.28/0.47                                                                                                     => ( ( Xz = Xx )
% 0.28/0.47                                                                                                        | ( Xz = Xy ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ).
% 0.28/0.47  
% 0.28/0.47  %------------------------------------------------------------------------------
% 0.28/0.47  ------------------------
% 1.91/1.35  ---- Embedded in THF ---
% 1.91/1.35  %%% This output was generated by embedproblem, version 1.9.5 (library version 1.9).
% 1.91/1.35  %%% Generated on Tue Feb 24 12:25:45 EST 2026
% 1.91/1.35  %%% using '$$dhol' embedding, version 1.3.0.
% 1.91/1.35  %%% Logic specification used:
% 1.91/1.35  %%% thf(spec, logic, $$dhol).
% 1.91/1.35  
% 1.91/1.35  % SZS output start ListOfTHF for /export/starexec/sandbox2/tmp/tmp.PJlHxzAzZQ/DTF2DTF25445.p
% See solution above
% 1.91/1.35  ------------------------
% 1.91/1.36  ---- Cleaned THF ---
% 1.91/1.36  thf(in_type,type,
% 1.91/1.36      in: $i > $i > $o ).
% 1.91/1.36  
% 1.91/1.36  thf(exu_type,type,
% 1.91/1.36      exu: ( $i > $o ) > $o ).
% 1.91/1.36  
% 1.91/1.36  thf(exu,definition,
% 1.91/1.36      ( exu
% 1.91/1.36      = ( ^ [Xphi: $i > $o] :
% 1.91/1.36          ? [Xx: $i] :
% 1.91/1.36            ( ( Xphi @ Xx )
% 1.91/1.36            & ! [Xy: $i] :
% 1.91/1.36                ( ( Xphi @ Xy )
% 1.91/1.36               => ( Xx = Xy ) ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(setextAx_type,type,
% 1.91/1.36      setextAx: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(setextAx,definition,
% 1.91/1.36      ( setextAx
% 1.91/1.36      = ( ! [A: $i,B: $i] :
% 1.91/1.36            ( ! [Xx: $i] :
% 1.91/1.36                ( ( in @ Xx @ A )
% 1.91/1.36              <=> ( in @ Xx @ B ) )
% 1.91/1.36           => ( A = B ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(emptyset_type,type,
% 1.91/1.36      emptyset: $i ).
% 1.91/1.36  
% 1.91/1.36  thf(emptysetAx_type,type,
% 1.91/1.36      emptysetAx: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(emptysetAx,definition,
% 1.91/1.36      ( emptysetAx
% 1.91/1.36      = ( ! [Xx: $i] :
% 1.91/1.36            ~ ( in @ Xx @ emptyset ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(setadjoin_type,type,
% 1.91/1.36      setadjoin: $i > $i > $i ).
% 1.91/1.36  
% 1.91/1.36  thf(setadjoinAx_type,type,
% 1.91/1.36      setadjoinAx: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(setadjoinAx,definition,
% 1.91/1.36      ( setadjoinAx
% 1.91/1.36      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 1.91/1.36            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 1.91/1.36          <=> ( ( Xy = Xx )
% 1.91/1.36              | ( in @ Xy @ A ) ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(powerset_type,type,
% 1.91/1.36      powerset: $i > $i ).
% 1.91/1.36  
% 1.91/1.36  thf(powersetAx_type,type,
% 1.91/1.36      powersetAx: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(powersetAx,definition,
% 1.91/1.36      ( powersetAx
% 1.91/1.36      = ( ! [A: $i,B: $i] :
% 1.91/1.36            ( ( in @ B @ ( powerset @ A ) )
% 1.91/1.36          <=> ! [Xx: $i] :
% 1.91/1.36                ( ( in @ Xx @ B )
% 1.91/1.36               => ( in @ Xx @ A ) ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(setunion_type,type,
% 1.91/1.36      setunion: $i > $i ).
% 1.91/1.36  
% 1.91/1.36  thf(setunionAx_type,type,
% 1.91/1.36      setunionAx: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(setunionAx,definition,
% 1.91/1.36      ( setunionAx
% 1.91/1.36      = ( ! [A: $i,Xx: $i] :
% 1.91/1.36            ( ( in @ Xx @ ( setunion @ A ) )
% 1.91/1.36          <=> ? [B: $i] :
% 1.91/1.36                ( ( in @ Xx @ B )
% 1.91/1.36                & ( in @ B @ A ) ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(omega_type,type,
% 1.91/1.36      omega: $i ).
% 1.91/1.36  
% 1.91/1.36  thf(omega0Ax_type,type,
% 1.91/1.36      omega0Ax: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(omega0Ax,definition,
% 1.91/1.36      ( omega0Ax
% 1.91/1.36      = ( in @ emptyset @ omega ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(omegaSAx_type,type,
% 1.91/1.36      omegaSAx: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(omegaSAx,definition,
% 1.91/1.36      ( omegaSAx
% 1.91/1.36      = ( ! [Xx: $i] :
% 1.91/1.36            ( ( in @ Xx @ omega )
% 1.91/1.36           => ( in @ ( setadjoin @ Xx @ Xx ) @ omega ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(omegaIndAx_type,type,
% 1.91/1.36      omegaIndAx: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(omegaIndAx,definition,
% 1.91/1.36      ( omegaIndAx
% 1.91/1.36      = ( ! [A: $i] :
% 1.91/1.36            ( ( ( in @ emptyset @ A )
% 1.91/1.36              & ! [Xx: $i] :
% 1.91/1.36                  ( ( ( in @ Xx @ omega )
% 1.91/1.36                    & ( in @ Xx @ A ) )
% 1.91/1.36                 => ( in @ ( setadjoin @ Xx @ Xx ) @ A ) ) )
% 1.91/1.36           => ! [Xx: $i] :
% 1.91/1.36                ( ( in @ Xx @ omega )
% 1.91/1.36               => ( in @ Xx @ A ) ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(replAx_type,type,
% 1.91/1.36      replAx: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(replAx,definition,
% 1.91/1.36      ( replAx
% 1.91/1.36      = ( ! [Xphi: $i > $i > $o,A: $i] :
% 1.91/1.36            ( ! [Xx: $i] :
% 1.91/1.36                ( ( in @ Xx @ A )
% 1.91/1.36               => ( exu
% 1.91/1.36                  @ ^ [Xy: $i] : ( Xphi @ Xx @ Xy ) ) )
% 1.91/1.36           => ? [B: $i] :
% 1.91/1.36              ! [Xx: $i] :
% 1.91/1.36                ( ( in @ Xx @ B )
% 1.91/1.36              <=> ? [Xy: $i] :
% 1.91/1.36                    ( ( in @ Xy @ A )
% 1.91/1.36                    & ( Xphi @ Xy @ Xx ) ) ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(foundationAx_type,type,
% 1.91/1.36      foundationAx: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(foundationAx,definition,
% 1.91/1.36      ( foundationAx
% 1.91/1.36      = ( ! [A: $i] :
% 1.91/1.36            ( ? [Xx: $i] : ( in @ Xx @ A )
% 1.91/1.36           => ? [B: $i] :
% 1.91/1.36                ( ( in @ B @ A )
% 1.91/1.36                & ~ ? [Xx: $i] :
% 1.91/1.36                      ( ( in @ Xx @ B )
% 1.91/1.36                      & ( in @ Xx @ A ) ) ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(wellorderingAx_type,type,
% 1.91/1.36      wellorderingAx: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(wellorderingAx,definition,
% 1.91/1.36      ( wellorderingAx
% 1.91/1.36      = ( ! [A: $i] :
% 1.91/1.36          ? [B: $i] :
% 1.91/1.36            ( ! [C: $i] :
% 1.91/1.36                ( ( in @ C @ B )
% 1.91/1.36               => ! [Xx: $i] :
% 1.91/1.36                    ( ( in @ Xx @ C )
% 1.91/1.36                   => ( in @ Xx @ A ) ) )
% 1.91/1.36            & ! [Xx: $i,Xy: $i] :
% 1.91/1.36                ( ( ( in @ Xx @ A )
% 1.91/1.36                  & ( in @ Xy @ A ) )
% 1.91/1.36               => ( ! [C: $i] :
% 1.91/1.36                      ( ( in @ C @ B )
% 1.91/1.36                     => ( ( in @ Xx @ C )
% 1.91/1.36                      <=> ( in @ Xy @ C ) ) )
% 1.91/1.36                 => ( Xx = Xy ) ) )
% 1.91/1.36            & ! [C: $i,D: $i] :
% 1.91/1.36                ( ( ( in @ C @ B )
% 1.91/1.36                  & ( in @ D @ B ) )
% 1.91/1.36               => ( ! [Xx: $i] :
% 1.91/1.36                      ( ( in @ Xx @ C )
% 1.91/1.36                     => ( in @ Xx @ D ) )
% 1.91/1.36                  | ! [Xx: $i] :
% 1.91/1.36                      ( ( in @ Xx @ D )
% 1.91/1.36                     => ( in @ Xx @ C ) ) ) )
% 1.91/1.36            & ! [C: $i] :
% 1.91/1.36                ( ( ! [Xx: $i] :
% 1.91/1.36                      ( ( in @ Xx @ C )
% 1.91/1.36                     => ( in @ Xx @ A ) )
% 1.91/1.36                  & ? [Xx: $i] : ( in @ Xx @ C ) )
% 1.91/1.36               => ? [D: $i,Xx: $i] :
% 1.91/1.36                    ( ( in @ D @ B )
% 1.91/1.36                    & ( in @ Xx @ C )
% 1.91/1.36                    & ~ ? [Xy: $i] :
% 1.91/1.36                          ( ( in @ Xy @ D )
% 1.91/1.36                          & ( in @ Xy @ C ) )
% 1.91/1.36                    & ! [E: $i] :
% 1.91/1.36                        ( ( in @ E @ B )
% 1.91/1.36                       => ( ! [Xy: $i] :
% 1.91/1.36                              ( ( in @ Xy @ E )
% 1.91/1.36                             => ( in @ Xy @ D ) )
% 1.91/1.36                          | ( in @ Xx @ E ) ) ) ) ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(descr_type,type,
% 1.91/1.36      descr: ( $i > $o ) > $i ).
% 1.91/1.36  
% 1.91/1.36  thf(descrp_type,type,
% 1.91/1.36      descrp: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(descrp,definition,
% 1.91/1.36      ( descrp
% 1.91/1.36      = ( ! [Xphi: $i > $o] :
% 1.91/1.36            ( ( exu
% 1.91/1.36              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 1.91/1.36           => ( Xphi
% 1.91/1.36              @ ( descr
% 1.91/1.36                @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(dsetconstr_type,type,
% 1.91/1.36      dsetconstr: $i > ( $i > $o ) > $i ).
% 1.91/1.36  
% 1.91/1.36  thf(dsetconstrI_type,type,
% 1.91/1.36      dsetconstrI: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(dsetconstrI,definition,
% 1.91/1.36      ( dsetconstrI
% 1.91/1.36      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 1.91/1.36            ( ( in @ Xx @ A )
% 1.91/1.36           => ( ( Xphi @ Xx )
% 1.91/1.36             => ( in @ Xx
% 1.91/1.36                @ ( dsetconstr @ A
% 1.91/1.36                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(dsetconstrEL_type,type,
% 1.91/1.36      dsetconstrEL: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(dsetconstrEL,definition,
% 1.91/1.36      ( dsetconstrEL
% 1.91/1.36      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 1.91/1.36            ( ( in @ Xx
% 1.91/1.36              @ ( dsetconstr @ A
% 1.91/1.36                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 1.91/1.36           => ( in @ Xx @ A ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(dsetconstrER_type,type,
% 1.91/1.36      dsetconstrER: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(dsetconstrER,definition,
% 1.91/1.36      ( dsetconstrER
% 1.91/1.36      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 1.91/1.36            ( ( in @ Xx
% 1.91/1.36              @ ( dsetconstr @ A
% 1.91/1.36                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 1.91/1.36           => ( Xphi @ Xx ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(exuE1_type,type,
% 1.91/1.36      exuE1: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(exuE1,definition,
% 1.91/1.36      ( exuE1
% 1.91/1.36      = ( ! [Xphi: $i > $o] :
% 1.91/1.36            ( ( exu
% 1.91/1.36              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 1.91/1.36           => ? [Xx: $i] :
% 1.91/1.36                ( ( Xphi @ Xx )
% 1.91/1.36                & ! [Xy: $i] :
% 1.91/1.36                    ( ( Xphi @ Xy )
% 1.91/1.36                   => ( Xx = Xy ) ) ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(prop2set_type,type,
% 1.91/1.36      prop2set: $o > $i ).
% 1.91/1.36  
% 1.91/1.36  thf(prop2set,definition,
% 1.91/1.36      ( prop2set
% 1.91/1.36      = ( ^ [Xphi: $o] :
% 1.91/1.36            ( dsetconstr @ ( powerset @ emptyset )
% 1.91/1.36            @ ^ [Xx: $i] : Xphi ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(prop2setE_type,type,
% 1.91/1.36      prop2setE: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(prop2setE,definition,
% 1.91/1.36      ( prop2setE
% 1.91/1.36      = ( ! [Xphi: $o,Xx: $i] :
% 1.91/1.36            ( ( in @ Xx @ ( prop2set @ Xphi ) )
% 1.91/1.36           => Xphi ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(emptysetE_type,type,
% 1.91/1.36      emptysetE: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(emptysetE,definition,
% 1.91/1.36      ( emptysetE
% 1.91/1.36      = ( ! [Xx: $i] :
% 1.91/1.36            ( ( in @ Xx @ emptyset )
% 1.91/1.36           => ! [Xphi: $o] : Xphi ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(emptysetimpfalse_type,type,
% 1.91/1.36      emptysetimpfalse: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(emptysetimpfalse,definition,
% 1.91/1.36      ( emptysetimpfalse
% 1.91/1.36      = ( ! [Xx: $i] :
% 1.91/1.36            ( ( in @ Xx @ emptyset )
% 1.91/1.36           => $false ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(notinemptyset_type,type,
% 1.91/1.36      notinemptyset: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(notinemptyset,definition,
% 1.91/1.36      ( notinemptyset
% 1.91/1.36      = ( ! [Xx: $i] :
% 1.91/1.36            ~ ( in @ Xx @ emptyset ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(exuE3e_type,type,
% 1.91/1.36      exuE3e: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(exuE3e,definition,
% 1.91/1.36      ( exuE3e
% 1.91/1.36      = ( ! [Xphi: $i > $o] :
% 1.91/1.36            ( ( exu
% 1.91/1.36              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 1.91/1.36           => ? [Xx: $i] : ( Xphi @ Xx ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(setext_type,type,
% 1.91/1.36      setext: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(setext,definition,
% 1.91/1.36      ( setext
% 1.91/1.36      = ( ! [A: $i,B: $i] :
% 1.91/1.36            ( ! [Xx: $i] :
% 1.91/1.36                ( ( in @ Xx @ A )
% 1.91/1.36               => ( in @ Xx @ B ) )
% 1.91/1.36           => ( ! [Xx: $i] :
% 1.91/1.36                  ( ( in @ Xx @ B )
% 1.91/1.36                 => ( in @ Xx @ A ) )
% 1.91/1.36             => ( A = B ) ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(emptyI_type,type,
% 1.91/1.36      emptyI: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(emptyI,definition,
% 1.91/1.36      ( emptyI
% 1.91/1.36      = ( ! [A: $i] :
% 1.91/1.36            ( ! [Xx: $i] :
% 1.91/1.36                ~ ( in @ Xx @ A )
% 1.91/1.36           => ( A = emptyset ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(noeltsimpempty_type,type,
% 1.91/1.36      noeltsimpempty: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(noeltsimpempty,definition,
% 1.91/1.36      ( noeltsimpempty
% 1.91/1.36      = ( ! [A: $i] :
% 1.91/1.36            ( ! [Xx: $i] :
% 1.91/1.36                ~ ( in @ Xx @ A )
% 1.91/1.36           => ( A = emptyset ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(setbeta_type,type,
% 1.91/1.36      setbeta: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(setbeta,definition,
% 1.91/1.36      ( setbeta
% 1.91/1.36      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 1.91/1.36            ( ( in @ Xx @ A )
% 1.91/1.36           => ( ( in @ Xx
% 1.91/1.36                @ ( dsetconstr @ A
% 1.91/1.36                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 1.91/1.36            <=> ( Xphi @ Xx ) ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(nonempty_type,type,
% 1.91/1.36      nonempty: $i > $o ).
% 1.91/1.36  
% 1.91/1.36  thf(nonempty,definition,
% 1.91/1.36      ( nonempty
% 1.91/1.36      = ( ^ [Xx: $i] : ( Xx != emptyset ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(nonemptyE1_type,type,
% 1.91/1.36      nonemptyE1: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(nonemptyE1,definition,
% 1.91/1.36      ( nonemptyE1
% 1.91/1.36      = ( ! [A: $i] :
% 1.91/1.36            ( ( nonempty @ A )
% 1.91/1.36           => ? [Xx: $i] : ( in @ Xx @ A ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(nonemptyI_type,type,
% 1.91/1.36      nonemptyI: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(nonemptyI,definition,
% 1.91/1.36      ( nonemptyI
% 1.91/1.36      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 1.91/1.36            ( ( in @ Xx @ A )
% 1.91/1.36           => ( ( Xphi @ Xx )
% 1.91/1.36             => ( nonempty
% 1.91/1.36                @ ( dsetconstr @ A
% 1.91/1.36                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(nonemptyI1_type,type,
% 1.91/1.36      nonemptyI1: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(nonemptyI1,definition,
% 1.91/1.36      ( nonemptyI1
% 1.91/1.36      = ( ! [A: $i] :
% 1.91/1.36            ( ? [Xx: $i] : ( in @ Xx @ A )
% 1.91/1.36           => ( nonempty @ A ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(setadjoinIL_type,type,
% 1.91/1.36      setadjoinIL: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(setadjoinIL,definition,
% 1.91/1.36      ( setadjoinIL
% 1.91/1.36      = ( ! [Xx: $i,Xy: $i] : ( in @ Xx @ ( setadjoin @ Xx @ Xy ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(emptyinunitempty_type,type,
% 1.91/1.36      emptyinunitempty: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(emptyinunitempty,definition,
% 1.91/1.36      ( emptyinunitempty
% 1.91/1.36      = ( in @ emptyset @ ( setadjoin @ emptyset @ emptyset ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(setadjoinIR_type,type,
% 1.91/1.36      setadjoinIR: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(setadjoinIR,definition,
% 1.91/1.36      ( setadjoinIR
% 1.91/1.36      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 1.91/1.36            ( ( in @ Xy @ A )
% 1.91/1.36           => ( in @ Xy @ ( setadjoin @ Xx @ A ) ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(setadjoinE_type,type,
% 1.91/1.36      setadjoinE: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(setadjoinE,definition,
% 1.91/1.36      ( setadjoinE
% 1.91/1.36      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 1.91/1.36            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 1.91/1.36           => ! [Xphi: $o] :
% 1.91/1.36                ( ( ( Xy = Xx )
% 1.91/1.36                 => Xphi )
% 1.91/1.36               => ( ( ( in @ Xy @ A )
% 1.91/1.36                   => Xphi )
% 1.91/1.36                 => Xphi ) ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(setadjoinOr_type,type,
% 1.91/1.36      setadjoinOr: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(setadjoinOr,definition,
% 1.91/1.36      ( setadjoinOr
% 1.91/1.36      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 1.91/1.36            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 1.91/1.36           => ( ( Xy = Xx )
% 1.91/1.36              | ( in @ Xy @ A ) ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(setoftrueEq_type,type,
% 1.91/1.36      setoftrueEq: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(setoftrueEq,definition,
% 1.91/1.36      ( setoftrueEq
% 1.91/1.36      = ( ! [A: $i] :
% 1.91/1.36            ( ( dsetconstr @ A
% 1.91/1.36              @ ^ [Xx: $i] : $true )
% 1.91/1.36            = A ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(powersetI_type,type,
% 1.91/1.36      powersetI: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(powersetI,definition,
% 1.91/1.36      ( powersetI
% 1.91/1.36      = ( ! [A: $i,B: $i] :
% 1.91/1.36            ( ! [Xx: $i] :
% 1.91/1.36                ( ( in @ Xx @ B )
% 1.91/1.36               => ( in @ Xx @ A ) )
% 1.91/1.36           => ( in @ B @ ( powerset @ A ) ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(emptyinPowerset_type,type,
% 1.91/1.36      emptyinPowerset: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(emptyinPowerset,definition,
% 1.91/1.36      ( emptyinPowerset
% 1.91/1.36      = ( ! [A: $i] : ( in @ emptyset @ ( powerset @ A ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(emptyInPowerset_type,type,
% 1.91/1.36      emptyInPowerset: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(emptyInPowerset,definition,
% 1.91/1.36      ( emptyInPowerset
% 1.91/1.36      = ( ! [A: $i] : ( in @ emptyset @ ( powerset @ A ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(powersetE_type,type,
% 1.91/1.36      powersetE: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(powersetE,definition,
% 1.91/1.36      ( powersetE
% 1.91/1.36      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.91/1.36            ( ( in @ B @ ( powerset @ A ) )
% 1.91/1.36           => ( ( in @ Xx @ B )
% 1.91/1.36             => ( in @ Xx @ A ) ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(setunionI_type,type,
% 1.91/1.36      setunionI: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(setunionI,definition,
% 1.91/1.36      ( setunionI
% 1.91/1.36      = ( ! [A: $i,Xx: $i,B: $i] :
% 1.91/1.36            ( ( in @ Xx @ B )
% 1.91/1.36           => ( ( in @ B @ A )
% 1.91/1.36             => ( in @ Xx @ ( setunion @ A ) ) ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(setunionE_type,type,
% 1.91/1.36      setunionE: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(setunionE,definition,
% 1.91/1.36      ( setunionE
% 1.91/1.36      = ( ! [A: $i,Xx: $i] :
% 1.91/1.36            ( ( in @ Xx @ ( setunion @ A ) )
% 1.91/1.36           => ! [Xphi: $o] :
% 1.91/1.36                ( ! [B: $i] :
% 1.91/1.36                    ( ( in @ Xx @ B )
% 1.91/1.36                   => ( ( in @ B @ A )
% 1.91/1.36                     => Xphi ) )
% 1.91/1.36               => Xphi ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(subPowSU_type,type,
% 1.91/1.36      subPowSU: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(subPowSU,definition,
% 1.91/1.36      ( subPowSU
% 1.91/1.36      = ( ! [A: $i,Xx: $i] :
% 1.91/1.36            ( ( in @ Xx @ A )
% 1.91/1.36           => ( in @ Xx @ ( powerset @ ( setunion @ A ) ) ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(exuE2_type,type,
% 1.91/1.36      exuE2: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(exuE2,definition,
% 1.91/1.36      ( exuE2
% 1.91/1.36      = ( ! [Xphi: $i > $o] :
% 1.91/1.36            ( ( exu
% 1.91/1.36              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 1.91/1.36           => ? [Xx: $i] :
% 1.91/1.36              ! [Xy: $i] :
% 1.91/1.36                ( ( Xphi @ Xy )
% 1.91/1.36              <=> ( Xy = Xx ) ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(nonemptyImpWitness_type,type,
% 1.91/1.36      nonemptyImpWitness: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(nonemptyImpWitness,definition,
% 1.91/1.36      ( nonemptyImpWitness
% 1.91/1.36      = ( ! [A: $i] :
% 1.91/1.36            ( ( nonempty @ A )
% 1.91/1.36           => ? [Xx: $i] :
% 1.91/1.36                ( ( in @ Xx @ A )
% 1.91/1.36                & $true ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(uniqinunit_type,type,
% 1.91/1.36      uniqinunit: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(uniqinunit,definition,
% 1.91/1.36      ( uniqinunit
% 1.91/1.36      = ( ! [Xx: $i,Xy: $i] :
% 1.91/1.36            ( ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) )
% 1.91/1.36           => ( Xx = Xy ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(notinsingleton_type,type,
% 1.91/1.36      notinsingleton: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(notinsingleton,definition,
% 1.91/1.36      ( notinsingleton
% 1.91/1.36      = ( ! [Xx: $i,Xy: $i] :
% 1.91/1.36            ( ( Xx != Xy )
% 1.91/1.36           => ~ ( in @ Xy @ ( setadjoin @ Xx @ emptyset ) ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(eqinunit_type,type,
% 1.91/1.36      eqinunit: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(eqinunit,definition,
% 1.91/1.36      ( eqinunit
% 1.91/1.36      = ( ! [Xx: $i,Xy: $i] :
% 1.91/1.36            ( ( Xx = Xy )
% 1.91/1.36           => ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(singletonsswitch_type,type,
% 1.91/1.36      singletonsswitch: $o ).
% 1.91/1.36  
% 1.91/1.36  thf(singletonsswitch,definition,
% 1.91/1.36      ( singletonsswitch
% 1.91/1.36      = ( ! [Xx: $i,Xy: $i] :
% 1.91/1.36            ( ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) )
% 1.91/1.36           => ( in @ Xy @ ( setadjoin @ Xx @ emptyset ) ) ) ) ) ).
% 1.91/1.36  
% 1.91/1.36  thf(upairsetE,conjecture,
% 1.91/1.36      ( setextAx
% 1.91/1.36     => ( emptysetAx
% 1.91/1.36       => ( setadjoinAx
% 1.91/1.36         => ( powersetAx
% 1.91/1.36           => ( setunionAx
% 1.91/1.36             => ( omega0Ax
% 1.91/1.36               => ( omegaSAx
% 1.91/1.36                 => ( omegaIndAx
% 1.91/1.36                   => ( replAx
% 1.91/1.36                     => ( foundationAx
% 1.91/1.36                       => ( wellorderingAx
% 1.91/1.36                         => ( descrp
% 1.91/1.36                           => ( dsetconstrI
% 1.91/1.36                             => ( dsetconstrEL
% 1.91/1.36                               => ( dsetconstrER
% 1.91/1.36                                 => ( exuE1
% 1.91/1.36                                   => ( prop2setE
% 1.91/1.36                                     => ( emptysetE
% 1.91/1.36                                       => ( emptysetimpfalse
% 1.91/1.36                                         => ( notinemptyset
% 1.91/1.36                                           => ( exuE3e
% 1.91/1.36                                             => ( setext
% 1.91/1.36                                               => ( emptyI
% 1.91/1.36                                                 => ( noeltsimpempty
% 1.91/1.36                                                   => ( setbeta
% 1.91/1.36                                                     => ( nonemptyE1
% 1.91/1.36                                                       => ( nonemptyI
% 1.91/1.36                                                         => ( nonemptyI1
% 1.91/1.36                                                           => ( setadjoinIL
% 1.91/1.36                                                             => ( emptyinunitempty
% 1.91/1.36                                                               => ( setadjoinIR
% 1.91/1.36                                                                 => ( setadjoinE
% 1.91/1.36                                                                   => ( setadjoinOr
% 1.91/1.36                                                                     => ( setoftrueEq
% 1.91/1.36                                                                       => ( powersetI
% 1.91/1.36                                                                         => ( emptyinPowerset
% 1.91/1.36                                                                           => ( emptyInPowerset
% 1.91/1.36                                                                             => ( powersetE
% 1.91/1.36                                                                               => ( setunionI
% 1.91/1.36                                                                                 => ( setunionE
% 1.91/1.36                                                                                   => ( subPowSU
% 1.91/1.36                                                                                     => ( exuE2
% 1.91/1.36                                                                                       => ( nonemptyImpWitness
% 1.91/1.36                                                                                         => ( uniqinunit
% 1.91/1.36                                                                                           => ( notinsingleton
% 1.91/1.36                                                                                             => ( eqinunit
% 1.91/1.36                                                                                               => ( singletonsswitch
% 1.91/1.36                                                                                                 => ! [Xx: $i,Xy: $i,Xz: $i] :
% 1.91/1.36                                                                                                      ( ( in @ Xz @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) )
% 1.91/1.36                                                                                                     => ( ( Xz = Xx )
% 1.91/1.36                                                                                                        | ( Xz = Xy ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ).
% 1.91/1.36  ------------------------
% 1.91/1.38  % (25591)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_25445 for (2999ds/4Mi)
% 1.91/1.38  % (25592)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_25445 for (2999ds/27Mi)
% 1.91/1.38  % (25590)lrs+1002_1:8_bd=off:fd=off:hud=10:tnu=1:i=183:si=on:rtra=on_0 on DTF2THF_25445 for (2999ds/183Mi)
% 1.91/1.38  % (25594)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_25445 for (2999ds/2Mi)
% 1.91/1.38  % (25595)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_25445 for (2999ds/275Mi)
% 1.91/1.38  % (25596)lrs+1004_1:128_cond=on:e2e=on:sp=weighted_frequency:i=18:si=on:rtra=on_0 on DTF2THF_25445 for (2999ds/18Mi)
% 1.91/1.38  % (25591)Instruction limit reached!
% 1.91/1.38  % (25591)------------------------------
% 1.91/1.38  % (25591)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.91/1.38  % (25591)Termination reason: Unknown
% 1.91/1.38  % (25591)Termination phase: shuffling
% 1.91/1.38  
% 1.91/1.38  % (25591)Memory used [KB]: 1151
% 1.91/1.38  % (25591)Time elapsed: 0.003 s
% 1.91/1.38  % (25591)Instructions burned: 5 (million)
% 1.91/1.38  % (25591)------------------------------
% 1.91/1.38  % (25591)------------------------------
% 1.91/1.38  % (25594)Instruction limit reached!
% 1.91/1.38  % (25594)------------------------------
% 1.91/1.38  % (25594)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.91/1.38  % (25594)Termination reason: Unknown
% 1.91/1.38  % (25594)Termination phase: shuffling
% 1.91/1.38  
% 1.91/1.38  % (25594)Memory used [KB]: 1023
% 1.91/1.38  % (25594)Time elapsed: 0.002 s
% 1.91/1.38  % (25594)Instructions burned: 3 (million)
% 1.91/1.38  % (25594)------------------------------
% 1.91/1.38  % (25594)------------------------------
% 1.91/1.39  % (25596)Instruction limit reached!
% 1.91/1.39  % (25596)------------------------------
% 1.91/1.39  % (25596)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.91/1.39  % (25596)Termination reason: Unknown
% 1.91/1.39  % (25596)Termination phase: Preprocessing 3
% 1.91/1.39  
% 1.91/1.39  % (25596)Memory used [KB]: 1535
% 1.91/1.39  % (25596)Time elapsed: 0.007 s
% 1.91/1.39  % (25596)Instructions burned: 18 (million)
% 1.91/1.39  % (25596)------------------------------
% 1.91/1.39  % (25596)------------------------------
% 1.91/1.39  % (25592)Instruction limit reached!
% 1.91/1.39  % (25592)------------------------------
% 1.91/1.39  % (25592)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.91/1.39  % (25592)Termination reason: Unknown
% 1.91/1.39  % (25592)Termination phase: Saturation
% 1.91/1.39  
% 1.91/1.39  % (25592)Memory used [KB]: 5756
% 1.91/1.39  % (25592)Time elapsed: 0.009 s
% 1.91/1.39  % (25592)Instructions burned: 27 (million)
% 1.91/1.39  % (25592)------------------------------
% 1.91/1.39  % (25592)------------------------------
% 1.91/1.39  % (25597)lrs+10_1:1_bet=on:cnfonf=off:fd=off:hud=5:inj=on:i=3:si=on:rtra=on_0 on DTF2THF_25445 for (2999ds/3Mi)
% 1.91/1.39  % (25593)lrs+10_1:1_au=on:inj=on:i=2:si=on:rtra=on_0 on DTF2THF_25445 for (2999ds/2Mi)
% 1.91/1.39  % (25597)Instruction limit reached!
% 1.91/1.39  % (25597)------------------------------
% 1.91/1.39  % (25597)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.91/1.39  % (25597)Termination reason: Unknown
% 1.91/1.39  % (25597)Termination phase: shuffling
% 1.91/1.39  
% 1.91/1.39  % (25597)Memory used [KB]: 1023
% 1.91/1.39  % (25597)Time elapsed: 0.002 s
% 1.91/1.39  % (25597)Instructions burned: 3 (million)
% 1.91/1.39  % (25597)------------------------------
% 1.91/1.39  % (25597)------------------------------
% 1.91/1.39  % (25598)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_25445 for (2999ds/37Mi)
% 1.91/1.39  % (25593)Instruction limit reached!
% 1.91/1.39  % (25593)------------------------------
% 1.91/1.39  % (25593)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.91/1.39  % (25593)Termination reason: Unknown
% 1.91/1.39  % (25593)Termination phase: shuffling
% 1.91/1.39  
% 1.91/1.39  % (25593)Memory used [KB]: 1023
% 1.91/1.39  % (25593)Time elapsed: 0.005 s
% 1.91/1.39  % (25593)Instructions burned: 3 (million)
% 1.91/1.39  % (25593)------------------------------
% 1.91/1.39  % (25593)------------------------------
% 1.91/1.40  % (25599)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_25445 for (2999ds/15Mi)
% 1.91/1.40  % (25600)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_25445 for (2999ds/3Mi)
% 2.09/1.40  % (25600)Instruction limit reached!
% 2.09/1.40  % (25600)------------------------------
% 2.09/1.40  % (25600)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.09/1.40  % (25600)Termination reason: Unknown
% 2.09/1.40  % (25600)Termination phase: shuffling
% 2.09/1.40  
% 2.09/1.40  % (25600)Memory used [KB]: 1151
% 2.09/1.40  % (25600)Time elapsed: 0.003 s
% 2.09/1.40  % (25600)Instructions burned: 6 (million)
% 2.09/1.40  % (25600)------------------------------
% 2.09/1.40  % (25600)------------------------------
% 2.09/1.40  % (25601)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_25445 for (2999ds/1041Mi)
% 2.09/1.40  % (25599)Instruction limit reached!
% 2.09/1.40  % (25599)------------------------------
% 2.09/1.40  % (25599)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.09/1.40  % (25599)Termination reason: Unknown
% 2.09/1.40  % (25599)Termination phase: Preprocessing 3
% 2.09/1.40  
% 2.09/1.40  % (25599)Memory used [KB]: 1407
% 2.09/1.40  % (25599)Time elapsed: 0.006 s
% 2.09/1.40  % (25599)Instructions burned: 16 (million)
% 2.09/1.40  % (25599)------------------------------
% 2.09/1.40  % (25599)------------------------------
% 2.09/1.40  % (25598)Instruction limit reached!
% 2.09/1.40  % (25598)------------------------------
% 2.09/1.40  % (25598)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.09/1.40  % (25598)Termination reason: Unknown
% 2.09/1.40  % (25598)Termination phase: Saturation
% 2.09/1.40  
% 2.09/1.40  % (25598)Memory used [KB]: 5756
% 2.09/1.40  % (25598)Time elapsed: 0.012 s
% 2.09/1.40  % (25598)Instructions burned: 38 (million)
% 2.09/1.40  % (25598)------------------------------
% 2.09/1.40  % (25598)------------------------------
% 2.09/1.41  % (25602)lrs+10_1:1_av=off:chr=on:plsq=on:slsq=on:i=7:si=on:rtra=on_0 on DTF2THF_25445 for (2999ds/7Mi)
% 2.09/1.41  % (25609)lrs+21_1:1_au=on:cnfonf=off:fd=preordered:fe=off:fsr=off:hud=11:inj=on:kws=precedence:s2pl=no:sp=weighted_frequency:tgt=full:i=3:si=on:rtra=on_0 on DTF2THF_25445 for (2999ds/3Mi)
% 2.09/1.41  % (25610)lrs+2_1:1_apa=on:au=on:bd=preordered:cnfonf=off:cs=on:ixr=off:sos=on:i=3:si=on:rtra=on_0 on DTF2THF_25445 for (2999ds/3Mi)
% 2.09/1.41  % (25606)lrs+10_1:1_acc=on:amm=sco:cs=on:tgt=full:i=16:si=on:rtra=on_0 on DTF2THF_25445 for (2999ds/16Mi)
% 2.09/1.41  % (25609)Instruction limit reached!
% 2.09/1.41  % (25609)------------------------------
% 2.09/1.41  % (25609)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.09/1.41  % (25609)Termination reason: Unknown
% 2.09/1.41  % (25609)Termination phase: shuffling
% 2.09/1.41  
% 2.09/1.41  % (25609)Memory used [KB]: 1151
% 2.09/1.41  % (25609)Time elapsed: 0.003 s
% 2.09/1.41  % (25609)Instructions burned: 4 (million)
% 2.09/1.41  % (25609)------------------------------
% 2.09/1.41  % (25609)------------------------------
% 2.09/1.41  % (25610)Instruction limit reached!
% 2.09/1.41  % (25610)------------------------------
% 2.09/1.41  % (25610)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.09/1.41  % (25610)Termination reason: Unknown
% 2.09/1.41  % (25610)Termination phase: shuffling
% 2.09/1.41  
% 2.09/1.41  % (25610)Memory used [KB]: 1151
% 2.09/1.41  % (25610)Time elapsed: 0.003 s
% 2.09/1.41  % (25610)Instructions burned: 4 (million)
% 2.09/1.41  % (25610)------------------------------
% 2.09/1.41  % (25610)------------------------------
% 2.09/1.41  % (25602)Instruction limit reached!
% 2.09/1.41  % (25602)------------------------------
% 2.09/1.41  % (25602)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.09/1.41  % (25602)Termination reason: Unknown
% 2.09/1.41  % (25602)Termination phase: shuffling
% 2.09/1.41  
% 2.09/1.41  % (25602)Memory used [KB]: 1151
% 2.09/1.41  % (25602)Time elapsed: 0.006 s
% 2.09/1.41  % (25602)Instructions burned: 8 (million)
% 2.09/1.41  % (25602)------------------------------
% 2.09/1.41  % (25602)------------------------------
% 2.09/1.42  % (25606)Instruction limit reached!
% 2.09/1.42  % (25606)------------------------------
% 2.09/1.42  % (25606)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.09/1.42  % (25606)Termination reason: Unknown
% 2.09/1.42  % (25606)Termination phase: Twee Goal Transformation
% 2.09/1.42  
% 2.09/1.42  % (25606)Memory used [KB]: 1279
% 2.09/1.42  % (25606)Time elapsed: 0.006 s
% 2.09/1.42  % (25606)Instructions burned: 19 (million)
% 2.09/1.42  % (25606)------------------------------
% 2.09/1.42  % (25606)------------------------------
% 2.09/1.42  % (25612)lrs+10_1:1_cnfonf=off:cs=on:hud=3:prag=on:sup=off:i=7:si=on:rtra=on_0 on DTF2THF_25445 for (2999ds/7Mi)
% 2.09/1.43  % (25614)dis+1002_1:1_add=large:cnfonf=lazy_pi_sigma_gen:fe=off:prag=on:i=3:si=on:rtra=on_0 on DTF2THF_25445 for (2999ds/3Mi)
% 2.09/1.43  % (25616)lrs+1002_1:1_anc=all_dependent:au=on:cbe=off:fde=unused:ntd=on:i=18:si=on:rtra=on_0 on DTF2THF_25445 for (2999ds/18Mi)
% 2.09/1.43  % (25614)Instruction limit reached!
% 2.09/1.43  % (25614)------------------------------
% 2.09/1.43  % (25614)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.09/1.43  % (25614)Termination reason: Unknown
% 2.09/1.43  % (25614)Termination phase: shuffling
% 2.09/1.43  
% 2.09/1.43  % (25614)Memory used [KB]: 1023
% 2.09/1.43  % (25614)Time elapsed: 0.003 s
% 2.09/1.43  % (25614)Instructions burned: 3 (million)
% 2.09/1.43  % (25614)------------------------------
% 2.09/1.43  % (25614)------------------------------
% 2.09/1.43  % (25612)Instruction limit reached!
% 2.09/1.43  % (25612)------------------------------
% 2.09/1.43  % (25612)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.09/1.43  % (25612)Termination reason: Unknown
% 2.09/1.43  % (25612)Termination phase: Property scanning
% 2.09/1.43  
% 2.09/1.43  % (25612)Memory used [KB]: 1151
% 2.09/1.43  % (25612)Time elapsed: 0.006 s
% 2.09/1.43  % (25612)Instructions burned: 8 (million)
% 2.09/1.43  % (25612)------------------------------
% 2.09/1.43  % (25612)------------------------------
% 2.09/1.43  % (25616)Instruction limit reached!
% 2.09/1.43  % (25616)------------------------------
% 2.09/1.43  % (25616)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.09/1.43  % (25616)Termination reason: Unknown
% 2.09/1.43  % (25616)Termination phase: Saturation
% 2.09/1.43  
% 2.09/1.43  % (25616)Memory used [KB]: 5756
% 2.09/1.43  % (25616)Time elapsed: 0.006 s
% 2.09/1.43  % (25616)Instructions burned: 19 (million)
% 2.09/1.43  % (25616)------------------------------
% 2.09/1.43  % (25616)------------------------------
% 2.09/1.44  % (25615)dis+1004_1:1_cha=on:cs=on:fe=off:hud=1:i=4:si=on:rtra=on_0 on DTF2THF_25445 for (2999ds/4Mi)
% 2.09/1.44  % (25626)dis+1002_5:1_au=on:bd=off:e2e=on:fde=none:fs=off:fsr=off:sos=on:i=902:si=on:rtra=on_0 on DTF2THF_25445 for (2999ds/902Mi)
% 2.09/1.44  % (25615)Instruction limit reached!
% 2.09/1.44  % (25615)------------------------------
% 2.09/1.44  % (25615)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.09/1.44  % (25615)Termination reason: Unknown
% 2.09/1.44  % (25615)Termination phase: shuffling
% 2.09/1.44  
% 2.09/1.44  % (25615)Memory used [KB]: 1151
% 2.09/1.44  % (25615)Time elapsed: 0.005 s
% 2.09/1.44  % (25615)Instructions burned: 4 (million)
% 2.09/1.44  % (25615)------------------------------
% 2.09/1.44  % (25615)------------------------------
% 2.09/1.44  % (25625)lrs+1004_1:1_chr=on:prag=on:i=6:si=on:rtra=on_0 on DTF2THF_25445 for (2999ds/6Mi)
% 2.09/1.44  % (25625)Instruction limit reached!
% 2.09/1.44  % (25625)------------------------------
% 2.09/1.44  % (25625)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.09/1.44  % (25625)Termination reason: Unknown
% 2.09/1.44  % (25625)Termination phase: Property scanning
% 2.09/1.44  
% 2.09/1.44  % (25625)Memory used [KB]: 1151
% 2.09/1.44  % (25625)Time elapsed: 0.004 s
% 2.09/1.44  % (25625)Instructions burned: 8 (million)
% 2.09/1.44  % (25625)------------------------------
% 2.09/1.44  % (25625)------------------------------
% 2.09/1.45  % (25624)lrs+10_1:1_e2e=on:sd=1:sgt=8:ss=axioms:i=710:si=on:rtra=on_0 on DTF2THF_25445 for (2999ds/710Mi)
% 2.09/1.45  % (25590)Instruction limit reached!
% 2.09/1.45  % (25590)------------------------------
% 2.09/1.45  % (25590)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.09/1.45  % (25590)Termination reason: Unknown
% 2.09/1.45  % (25590)Termination phase: Saturation
% 2.09/1.45  
% 2.09/1.45  % (25590)Memory used [KB]: 6908
% 2.09/1.45  % (25590)Time elapsed: 0.072 s
% 2.09/1.45  % (25590)Instructions burned: 184 (million)
% 2.09/1.45  % (25590)------------------------------
% 2.09/1.45  % (25590)------------------------------
% 2.09/1.46  % (25630)dis+10_1:1_cnfonf=lazy_gen:fe=off:i=5:si=on:rtra=on_0 on DTF2THF_25445 for (2999ds/5Mi)
% 2.09/1.46  % (25630)Instruction limit reached!
% 2.09/1.46  % (25630)------------------------------
% 2.09/1.46  % (25630)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.09/1.46  % (25630)Termination reason: Unknown
% 2.09/1.46  % (25630)Termination phase: shuffling
% 2.09/1.46  
% 2.09/1.46  % (25630)Memory used [KB]: 1151
% 2.09/1.46  % (25630)Time elapsed: 0.004 s
% 2.09/1.46  % (25630)Instructions burned: 5 (million)
% 2.09/1.46  % (25630)------------------------------
% 2.09/1.46  % (25630)------------------------------
% 2.09/1.46  % (25626)First to succeed.
% 2.09/1.47  % (25626)Refutation found. Thanks to Tanya!
% 2.09/1.47  % SZS status Theorem for DTF2THF_25445
% 2.09/1.47  % SZS output start Proof for DTF2THF_25445
% 2.09/1.47  thf(func_def_0, type, in: $i > $i > $o).
% 2.09/1.47  thf(func_def_1, type, exu: ($i > $o) > $o).
% 2.09/1.47  thf(func_def_6, type, setadjoin: $i > $i > $i).
% 2.09/1.47  thf(func_def_8, type, powerset: $i > $i).
% 2.09/1.47  thf(func_def_10, type, setunion: $i > $i).
% 2.09/1.47  thf(func_def_19, type, descr: ($i > $o) > $i).
% 2.09/1.47  thf(func_def_21, type, dsetconstr: $i > ($i > $o) > $i).
% 2.09/1.47  thf(func_def_26, type, prop2set: $o > $i).
% 2.09/1.47  thf(func_def_36, type, nonempty: $i > $o).
% 2.09/1.47  thf(func_def_72, type, sP1: $i > $i > $o).
% 2.09/1.47  thf(func_def_73, type, sP2: $i > $o).
% 2.09/1.47  thf(func_def_74, type, sP3: $i > $i > $o).
% 2.09/1.47  thf(func_def_75, type, sP4: $i > $i > $o).
% 2.09/1.47  thf(func_def_77, type, sK6: $i > $i > $o).
% 2.09/1.47  thf(func_def_78, type, sK7: $i > $i).
% 2.09/1.47  thf(func_def_79, type, sK8: $i > $i).
% 2.09/1.47  thf(func_def_80, type, sK9: ($i > $i > $o) > $i > $i).
% 2.09/1.47  thf(func_def_81, type, sK10: ($i > $i > $o) > $i > $i).
% 2.09/1.47  thf(func_def_82, type, sK11: $i > ($i > $i > $o) > $i > $i).
% 2.09/1.47  thf(func_def_89, type, sK18: $i > $o).
% 2.09/1.47  thf(func_def_94, type, sK23: $i > $i > $i).
% 2.09/1.47  thf(func_def_97, type, sK26: $i > $i).
% 2.09/1.47  thf(func_def_107, type, sK36: ($i > $o) > $i).
% 2.09/1.47  thf(func_def_108, type, sK37: $i > $o).
% 2.09/1.47  thf(func_def_109, type, sK38: $i > $i).
% 2.09/1.47  thf(func_def_113, type, sK42: $i > $o).
% 2.09/1.47  thf(func_def_114, type, sK43: $i > $i).
% 2.09/1.47  thf(func_def_115, type, sK44: ($i > $o) > $i).
% 2.09/1.47  thf(func_def_123, type, sK52: ($i > $o) > $i).
% 2.09/1.47  thf(func_def_124, type, sK53: $i > $o).
% 2.09/1.47  thf(func_def_127, type, sK56: $i > $i > $i).
% 2.09/1.47  thf(func_def_128, type, sK57: $i > $i > $i).
% 2.09/1.47  thf(func_def_129, type, sK58: $i > $i > $i).
% 2.09/1.47  thf(func_def_130, type, sK59: $i > $i > $i).
% 2.09/1.47  thf(func_def_131, type, sK60: $i > $i > $i > $i).
% 2.09/1.47  thf(func_def_132, type, sK61: $i > $i).
% 2.09/1.47  thf(func_def_133, type, sK62: $i > $i).
% 2.09/1.47  thf(func_def_134, type, sK63: $i > $i).
% 2.09/1.47  thf(func_def_135, type, sK64: $i > $i).
% 2.09/1.47  thf(func_def_136, type, sK65: $i > $i > $i).
% 2.09/1.47  thf(func_def_137, type, sK66: $i > $i > $i > $i).
% 2.09/1.47  thf(func_def_138, type, sK67: $i > $i > $i > $i).
% 2.09/1.47  thf(func_def_139, type, sK68: $i > $i > $i).
% 2.09/1.47  thf(func_def_140, type, sK69: $i > $i > $i).
% 2.09/1.47  thf(func_def_142, type, sK71: $i > $i).
% 2.09/1.47  thf(func_def_143, type, sK72: $i > $i).
% 2.09/1.47  thf(func_def_144, type, sK73: $i > $i).
% 2.09/1.47  thf(func_def_145, type, sK74: $i > $i > $i).
% 2.09/1.47  thf(func_def_146, type, sK75: $i > $i).
% 2.09/1.47  thf(func_def_149, type, sK78: $i > $i).
% 2.09/1.47  thf(func_def_153, type, sK82: $i > $i).
% 2.09/1.47  thf(func_def_156, type, sK85: $i > $o).
% 2.09/1.47  thf(func_def_157, type, sK86: $o > $i > $i > $i).
% 2.09/1.47  thf(func_def_167, type, sK96: $i > $i > $i).
% 2.09/1.47  thf(func_def_175, type, sK104: $i > $o).
% 2.09/1.47  thf(func_def_178, type, sK107: $i > $o).
% 2.09/1.47  thf(func_def_182, type, sK111: $i > $i).
% 2.09/1.47  thf(func_def_185, type, sK114: $i > $o).
% 2.09/1.47  thf(func_def_187, type, sK116: $i > $i > $i).
% 2.09/1.47  thf(func_def_188, type, sK117: $i > $i > $i).
% 2.09/1.47  thf(func_def_191, type, sK120: $i > $i).
% 2.09/1.47  thf(func_def_195, type, sK124: $i > $i > $i).
% 2.09/1.47  thf(func_def_199, type, sK128: $i > $i).
% 2.09/1.47  thf(func_def_205, type, sK134: $i > $o).
% 2.09/1.47  thf(func_def_207, type, sK136: $i > $i > $i).
% 2.09/1.47  thf(func_def_211, type, ph140: !>[X0: $tType]:(X0)).
% 2.09/1.47  thf(f833,plain,(
% 2.09/1.47    $false),
% 2.09/1.47    inference(avatar_sat_refutation,[status(thm)],[f777,f789,f826,f832])).
% 2.09/1.47  thf(f832,plain,(
% 2.09/1.47    ~spl139_4),
% 2.09/1.47    inference(avatar_contradiction_clause,[status(thm)],[f831])).
% 2.09/1.47  thf(f831,plain,(
% 2.09/1.47    $false | ~spl139_4),
% 2.09/1.47    inference(trivial_inequality_removal,[status(thm)],[f830])).
% 2.09/1.47  thf(f830,plain,(
% 2.09/1.47    (sK48 != sK48) | ~spl139_4),
% 2.09/1.47    inference(superposition,[status(thm)],[f556,f809])).
% 2.09/1.47  thf(f809,plain,(
% 2.09/1.47    (sK50 = sK48) | ~spl139_4),
% 2.09/1.47    inference(avatar_component_clause,[status(thm)],[f807])).
% 2.09/1.47  thf(f807,definition,(
% 2.09/1.47    spl139_4 <=> (sK50 = sK48)),
% 2.09/1.47    introduced(definition,[new_symbols(naming,[spl139_4])],[avatar_definition])).
% 2.09/1.47  thf(f556,plain,(
% 2.09/1.47    (sK50 != sK48)),
% 2.09/1.47    inference(cnf_transformation,[status(thm)],[f302])).
% 2.09/1.47  thf(f302,plain,(
% 2.09/1.47    (setadjoinE = $true) & (wellorderingAx = $true) & (setadjoinIL = $true) & (notinemptyset = $true) & (noeltsimpempty = $true) & (singletonsswitch = $true) & (emptyInPowerset = $true) & (setadjoinIR = $true) & (nonemptyI = $true) & (replAx = $true) & (emptyinPowerset = $true) & (powersetAx = $true) & (subPowSU = $true) & (emptyI = $true) & (emptysetimpfalse = $true) & (setext = $true) & (notinsingleton = $true) & (emptyinunitempty = $true) & (dsetconstrEL = $true) & (setunionI = $true) & (nonemptyE1 = $true) & (omegaSAx = $true) & (emptysetE = $true) & (descrp = $true) & (setunionE = $true) & (nonemptyImpWitness = $true) & (((in @ sK48 @ (setadjoin @ sK49 @ (setadjoin @ sK50 @ emptyset))) = $true) & (sK50 != sK48) & (sK49 != sK48)) & (uniqinunit = $true) & (omega0Ax = $true) & (exuE1 = $true) & (exuE3e = $true) & (foundationAx = $true) & (setadjoinOr = $true) & (powersetE = $true) & (dsetconstrI = $true) & (setextAx = $true) & (powersetI = $true) & (eqinunit = $true) & (nonemptyI1 = $true) & (setadjoinAx = $true) & (dsetconstrER = $true) & (setbeta = $true) & (prop2setE = $true) & (emptysetAx = $true) & (omegaIndAx = $true) & (setunionAx = $true) & (setoftrueEq = $true) & (exuE2 = $true)),
% 2.09/1.47    inference(skolemisation,[status(esa),new_symbols(skolem,[sK48,sK49,sK50])],[f170,f301])).
% 2.09/1.47  thf(f301,plain,(
% 2.09/1.47    ? [X0 : $i,X1 : $i,X2 : $i] : (($true = (in @ X0 @ (setadjoin @ X1 @ (setadjoin @ X2 @ emptyset)))) & (X0 != X2) & (X0 != X1)) => (((in @ sK48 @ (setadjoin @ sK49 @ (setadjoin @ sK50 @ emptyset))) = $true) & (sK50 != sK48) & (sK49 != sK48))),
% 2.09/1.47    introduced(definition,[],[choice_axiom])).
% 2.09/1.47  thf(f170,plain,(
% 2.09/1.47    (setadjoinE = $true) & (wellorderingAx = $true) & (setadjoinIL = $true) & (notinemptyset = $true) & (noeltsimpempty = $true) & (singletonsswitch = $true) & (emptyInPowerset = $true) & (setadjoinIR = $true) & (nonemptyI = $true) & (replAx = $true) & (emptyinPowerset = $true) & (powersetAx = $true) & (subPowSU = $true) & (emptyI = $true) & (emptysetimpfalse = $true) & (setext = $true) & (notinsingleton = $true) & (emptyinunitempty = $true) & (dsetconstrEL = $true) & (setunionI = $true) & (nonemptyE1 = $true) & (omegaSAx = $true) & (emptysetE = $true) & (descrp = $true) & (setunionE = $true) & (nonemptyImpWitness = $true) & ? [X0 : $i,X1 : $i,X2 : $i] : (($true = (in @ X0 @ (setadjoin @ X1 @ (setadjoin @ X2 @ emptyset)))) & (X0 != X2) & (X0 != X1)) & (uniqinunit = $true) & (omega0Ax = $true) & (exuE1 = $true) & (exuE3e = $true) & (foundationAx = $true) & (setadjoinOr = $true) & (powersetE = $true) & (dsetconstrI = $true) & (setextAx = $true) & (powersetI = $true) & (eqinunit = $true) & (nonemptyI1 = $true) & (setadjoinAx = $true) & (dsetconstrER = $true) & (setbeta = $true) & (prop2setE = $true) & (emptysetAx = $true) & (omegaIndAx = $true) & (setunionAx = $true) & (setoftrueEq = $true) & (exuE2 = $true)),
% 2.09/1.47    inference(flattening,[status(thm)],[f169])).
% 2.09/1.47  thf(f169,plain,(
% 2.09/1.47    ((((((((((((((((((((((((((((((((((((((((((((((? [X0 : $i,X1 : $i,X2 : $i] : (((X0 != X2) & (X0 != X1)) & ($true = (in @ X0 @ (setadjoin @ X1 @ (setadjoin @ X2 @ emptyset))))) & (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)),
% 2.09/1.47    inference(ennf_transformation,[status(thm)],[f105])).
% 2.09/1.47  thf(f105,plain,(
% 2.09/1.47    ~((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) => ! [X0 : $i,X1 : $i,X2 : $i] : (($true = (in @ X0 @ (setadjoin @ X1 @ (setadjoin @ X2 @ emptyset)))) => ((X0 = X2) | (X0 = X1))))))))))))))))))))))))))))))))))))))))))))))))))),
% 2.09/1.47    inference(fool_elimination,[status(thm)],[f104])).
% 2.09/1.47  thf(f104,plain,(
% 2.09/1.47    ~(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 => ! [X0 : $i,X1 : $i,X2 : $i] : ((in @ X0 @ (setadjoin @ X1 @ (setadjoin @ X2 @ emptyset))) => ((X0 = X2) | (X0 = X1))))))))))))))))))))))))))))))))))))))))))))))))))),
% 2.09/1.47    inference(rectify,[status(thm)],[f52])).
% 2.09/1.47  thf(f52,negated_conjecture,(
% 2.09/1.47    ~(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 => ! [X8 : $i,X1 : $i,X2 : $i] : ((in @ X8 @ (setadjoin @ X1 @ (setadjoin @ X2 @ emptyset))) => ((X2 = X8) | (X1 = X8))))))))))))))))))))))))))))))))))))))))))))))))))),
% 2.09/1.47    inference(negated_conjecture,[status(cth)],[f51])).
% 2.09/1.47  thf(f51,conjecture,(
% 2.09/1.47    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 => ! [X8 : $i,X1 : $i,X2 : $i] : ((in @ X8 @ (setadjoin @ X1 @ (setadjoin @ X2 @ emptyset))) => ((X2 = X8) | (X1 = X8)))))))))))))))))))))))))))))))))))))))))))))))))),
% 2.09/1.47    file('/export/starexec/sandbox2/tmp/tmp.PJlHxzAzZQ/DTF2THF_25445.p',upairsetE)).
% 2.09/1.47  thf(f826,plain,(
% 2.09/1.47    spl139_4 | ~spl139_1),
% 2.09/1.47    inference(avatar_split_clause,[status(thm)],[f803,f767,f807])).
% 2.09/1.47  thf(f767,definition,(
% 2.09/1.47    spl139_1 <=> ((in @ sK48 @ (setadjoin @ sK50 @ emptyset)) = $true)),
% 2.09/1.47    introduced(definition,[new_symbols(naming,[spl139_1])],[avatar_definition])).
% 2.09/1.47  thf(f803,plain,(
% 2.09/1.47    (sK50 = sK48) | ~spl139_1),
% 2.09/1.47    inference(trivial_inequality_removal,[status(thm)],[f802])).
% 2.09/1.47  thf(f802,plain,(
% 2.09/1.47    ($true != $true) | (sK50 = sK48) | ~spl139_1),
% 2.09/1.47    inference(forward_demodulation,[status(thm)],[f801,f554])).
% 2.09/1.47  thf(f554,plain,(
% 2.09/1.47    (uniqinunit = $true)),
% 2.09/1.47    inference(cnf_transformation,[status(thm)],[f302])).
% 2.09/1.47  thf(f801,plain,(
% 2.09/1.47    (uniqinunit != $true) | (sK50 = sK48) | ~spl139_1),
% 2.09/1.47    inference(trivial_inequality_removal,[status(thm)],[f791])).
% 2.09/1.47  thf(f791,plain,(
% 2.09/1.47    (uniqinunit != $true) | (sK50 = sK48) | ($true != $true) | ~spl139_1),
% 2.09/1.47    inference(superposition,[status(thm)],[f634,f769])).
% 2.09/1.47  thf(f769,plain,(
% 2.09/1.47    ((in @ sK48 @ (setadjoin @ sK50 @ emptyset)) = $true) | ~spl139_1),
% 2.09/1.47    inference(avatar_component_clause,[status(thm)],[f767])).
% 2.09/1.47  thf(f634,plain,(
% 2.09/1.47    ( ! [X2 : $i,X3 : $i] : (($true != (in @ X2 @ (setadjoin @ X3 @ emptyset))) | (uniqinunit != $true) | (X2 = X3)) )),
% 2.09/1.47    inference(cnf_transformation,[status(thm)],[f357])).
% 2.09/1.47  thf(f357,plain,(
% 2.09/1.47    ((uniqinunit = $true) | (((in @ sK79 @ (setadjoin @ sK80 @ emptyset)) = $true) & (sK79 != sK80))) & (! [X2 : $i,X3 : $i] : (($true != (in @ X2 @ (setadjoin @ X3 @ emptyset))) | (X2 = X3)) | (uniqinunit != $true))),
% 2.09/1.47    inference(skolemisation,[status(esa),new_symbols(skolem,[sK79,sK80])],[f355,f356])).
% 2.09/1.47  thf(f356,plain,(
% 2.09/1.47    ? [X0 : $i,X1 : $i] : (((in @ X0 @ (setadjoin @ X1 @ emptyset)) = $true) & (X0 != X1)) => (((in @ sK79 @ (setadjoin @ sK80 @ emptyset)) = $true) & (sK79 != sK80))),
% 2.09/1.47    introduced(definition,[],[choice_axiom])).
% 2.09/1.47  thf(f355,plain,(
% 2.09/1.47    ((uniqinunit = $true) | ? [X0 : $i,X1 : $i] : (((in @ X0 @ (setadjoin @ X1 @ emptyset)) = $true) & (X0 != X1))) & (! [X2 : $i,X3 : $i] : (($true != (in @ X2 @ (setadjoin @ X3 @ emptyset))) | (X2 = X3)) | (uniqinunit != $true))),
% 2.09/1.47    inference(rectify,[status(thm)],[f354])).
% 2.09/1.47  thf(f354,plain,(
% 2.09/1.47    ((uniqinunit = $true) | ? [X0 : $i,X1 : $i] : (((in @ X0 @ (setadjoin @ X1 @ emptyset)) = $true) & (X0 != X1))) & (! [X0 : $i,X1 : $i] : (((in @ X0 @ (setadjoin @ X1 @ emptyset)) != $true) | (X0 = X1)) | (uniqinunit != $true))),
% 2.09/1.47    inference(nnf_transformation,[status(thm)],[f182])).
% 2.09/1.47  thf(f182,plain,(
% 2.09/1.47    (uniqinunit = $true) <=> ! [X0 : $i,X1 : $i] : (((in @ X0 @ (setadjoin @ X1 @ emptyset)) != $true) | (X0 = X1))),
% 2.09/1.47    inference(ennf_transformation,[status(thm)],[f57])).
% 2.09/1.47  thf(f57,plain,(
% 2.09/1.47    ! [X0 : $i,X1 : $i] : (((in @ X0 @ (setadjoin @ X1 @ emptyset)) = $true) => (X0 = X1)) <=> (uniqinunit = $true)),
% 2.09/1.47    inference(fool_elimination,[status(thm)],[f56])).
% 2.09/1.47  thf(f56,plain,(
% 2.09/1.47    (! [X0 : $i,X1 : $i] : ((in @ X0 @ (setadjoin @ X1 @ emptyset)) => (X0 = X1)) = uniqinunit)),
% 2.09/1.47    inference(rectify,[status(thm)],[f47])).
% 2.09/1.47  thf(f47,axiom,(
% 2.09/1.47    (! [X1 : $i,X2 : $i] : ((in @ X1 @ (setadjoin @ X2 @ emptyset)) => (X1 = X2)) = uniqinunit)),
% 2.09/1.47    file('/export/starexec/sandbox2/tmp/tmp.PJlHxzAzZQ/DTF2THF_25445.p',uniqinunit)).
% 2.09/1.47  thf(f789,plain,(
% 2.09/1.47    ~spl139_2),
% 2.09/1.47    inference(avatar_contradiction_clause,[status(thm)],[f788])).
% 2.09/1.47  thf(f788,plain,(
% 2.09/1.47    $false | ~spl139_2),
% 2.09/1.47    inference(trivial_inequality_removal,[status(thm)],[f787])).
% 2.09/1.47  thf(f787,plain,(
% 2.09/1.47    (sK48 != sK48) | ~spl139_2),
% 2.09/1.47    inference(superposition,[status(thm)],[f555,f773])).
% 2.09/1.47  thf(f773,plain,(
% 2.09/1.47    (sK49 = sK48) | ~spl139_2),
% 2.09/1.47    inference(avatar_component_clause,[status(thm)],[f771])).
% 2.09/1.47  thf(f771,definition,(
% 2.09/1.47    spl139_2 <=> (sK49 = sK48)),
% 2.09/1.47    introduced(definition,[new_symbols(naming,[spl139_2])],[avatar_definition])).
% 2.09/1.47  thf(f555,plain,(
% 2.09/1.47    (sK49 != sK48)),
% 2.09/1.47    inference(cnf_transformation,[status(thm)],[f302])).
% 2.09/1.47  thf(f777,plain,(
% 2.09/1.47    spl139_2 | spl139_1),
% 2.09/1.47    inference(avatar_split_clause,[status(thm)],[f776,f767,f771])).
% 2.09/1.47  thf(f776,plain,(
% 2.09/1.47    ((in @ sK48 @ (setadjoin @ sK50 @ emptyset)) = $true) | (sK49 = sK48)),
% 2.09/1.47    inference(trivial_inequality_removal,[status(thm)],[f775])).
% 2.09/1.47  thf(f775,plain,(
% 2.09/1.47    (sK49 = sK48) | ($true != $true) | ((in @ sK48 @ (setadjoin @ sK50 @ emptyset)) = $true)),
% 2.09/1.47    inference(forward_demodulation,[status(thm)],[f762,f549])).
% 2.09/1.47  thf(f549,plain,(
% 2.09/1.47    (setadjoinOr = $true)),
% 2.09/1.47    inference(cnf_transformation,[status(thm)],[f302])).
% 2.09/1.47  thf(f762,plain,(
% 2.09/1.47    ((in @ sK48 @ (setadjoin @ sK50 @ emptyset)) = $true) | (setadjoinOr != $true) | (sK49 = sK48)),
% 2.09/1.47    inference(trivial_inequality_removal,[status(thm)],[f756])).
% 2.09/1.47  thf(f756,plain,(
% 2.09/1.47    (sK49 = sK48) | ($true != $true) | ((in @ sK48 @ (setadjoin @ sK50 @ emptyset)) = $true) | (setadjoinOr != $true)),
% 2.09/1.47    inference(superposition,[status(thm)],[f505,f557])).
% 2.09/1.47  thf(f557,plain,(
% 2.09/1.47    ((in @ sK48 @ (setadjoin @ sK49 @ (setadjoin @ sK50 @ emptyset))) = $true)),
% 2.09/1.47    inference(cnf_transformation,[status(thm)],[f302])).
% 2.09/1.47  thf(f505,plain,(
% 2.09/1.47    ( ! [X2 : $i,X0 : $i,X1 : $i] : (($true != (in @ X2 @ (setadjoin @ X0 @ X1))) | ((in @ X2 @ X1) = $true) | (X0 = X2) | (setadjoinOr != $true)) )),
% 2.09/1.47    inference(cnf_transformation,[status(thm)],[f263])).
% 2.09/1.47  thf(f263,plain,(
% 2.09/1.47    (! [X0 : $i,X1 : $i,X2 : $i] : (($true != (in @ X2 @ (setadjoin @ X0 @ X1))) | (X0 = X2) | ((in @ X2 @ X1) = $true)) | (setadjoinOr != $true)) & ((setadjoinOr = $true) | (((in @ sK31 @ (setadjoin @ sK29 @ sK30)) = $true) & (sK29 != sK31) & ($true != (in @ sK31 @ sK30))))),
% 2.09/1.47    inference(skolemisation,[status(esa),new_symbols(skolem,[sK29,sK30,sK31])],[f261,f262])).
% 2.09/1.47  thf(f262,plain,(
% 2.09/1.47    ? [X3 : $i,X4 : $i,X5 : $i] : (((in @ X5 @ (setadjoin @ X3 @ X4)) = $true) & (X3 != X5) & ((in @ X5 @ X4) != $true)) => (((in @ sK31 @ (setadjoin @ sK29 @ sK30)) = $true) & (sK29 != sK31) & ($true != (in @ sK31 @ sK30)))),
% 2.09/1.47    introduced(definition,[],[choice_axiom])).
% 2.09/1.47  thf(f261,plain,(
% 2.09/1.47    (! [X0 : $i,X1 : $i,X2 : $i] : (($true != (in @ X2 @ (setadjoin @ X0 @ X1))) | (X0 = X2) | ((in @ X2 @ X1) = $true)) | (setadjoinOr != $true)) & ((setadjoinOr = $true) | ? [X3 : $i,X4 : $i,X5 : $i] : (((in @ X5 @ (setadjoin @ X3 @ X4)) = $true) & (X3 != X5) & ((in @ X5 @ X4) != $true)))),
% 2.09/1.47    inference(rectify,[status(thm)],[f260])).
% 2.09/1.47  thf(f260,plain,(
% 2.09/1.47    (! [X0 : $i,X1 : $i,X2 : $i] : (($true != (in @ X2 @ (setadjoin @ X0 @ X1))) | (X0 = X2) | ((in @ X2 @ X1) = $true)) | (setadjoinOr != $true)) & ((setadjoinOr = $true) | ? [X0 : $i,X1 : $i,X2 : $i] : (($true = (in @ X2 @ (setadjoin @ X0 @ X1))) & (X0 != X2) & ((in @ X2 @ X1) != $true)))),
% 2.09/1.47    inference(nnf_transformation,[status(thm)],[f179])).
% 2.09/1.47  thf(f179,plain,(
% 2.09/1.47    ! [X0 : $i,X1 : $i,X2 : $i] : (($true != (in @ X2 @ (setadjoin @ X0 @ X1))) | (X0 = X2) | ((in @ X2 @ X1) = $true)) <=> (setadjoinOr = $true)),
% 2.09/1.47    inference(flattening,[status(thm)],[f178])).
% 2.09/1.47  thf(f178,plain,(
% 2.09/1.47    ! [X0 : $i,X1 : $i,X2 : $i] : (((X0 = X2) | ((in @ X2 @ X1) = $true)) | ($true != (in @ X2 @ (setadjoin @ X0 @ X1)))) <=> (setadjoinOr = $true)),
% 2.09/1.47    inference(ennf_transformation,[status(thm)],[f146])).
% 2.09/1.47  thf(f146,plain,(
% 2.09/1.47    ! [X0 : $i,X1 : $i,X2 : $i] : (($true = (in @ X2 @ (setadjoin @ X0 @ X1))) => ((X0 = X2) | ((in @ X2 @ X1) = $true))) <=> (setadjoinOr = $true)),
% 2.09/1.47    inference(fool_elimination,[status(thm)],[f145])).
% 2.09/1.47  thf(f145,plain,(
% 2.09/1.47    (! [X0 : $i,X1 : $i,X2 : $i] : ((in @ X2 @ (setadjoin @ X0 @ X1)) => ((in @ X2 @ X1) | (X0 = X2))) = setadjoinOr)),
% 2.09/1.47    inference(rectify,[status(thm)],[f36])).
% 2.09/1.47  thf(f36,axiom,(
% 2.09/1.47    (! [X1 : $i,X3 : $i,X2 : $i] : ((in @ X2 @ (setadjoin @ X1 @ X3)) => ((in @ X2 @ X3) | (X1 = X2))) = setadjoinOr)),
% 2.09/1.47    file('/export/starexec/sandbox2/tmp/tmp.PJlHxzAzZQ/DTF2THF_25445.p',setadjoinOr)).
% 2.09/1.47  % SZS output end Proof for DTF2THF_25445
% 2.09/1.47  % (25626)------------------------------
% 2.09/1.47  % (25626)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.09/1.47  % (25626)Termination reason: Refutation
% 2.09/1.47  
% 2.09/1.47  % (25626)Memory used [KB]: 6396
% 2.09/1.47  % (25626)Time elapsed: 0.025 s
% 2.09/1.47  % (25626)Instructions burned: 55 (million)
% 2.09/1.47  % (25626)------------------------------
% 2.09/1.47  % (25626)------------------------------
% 2.09/1.47  % (25589)Success in time 0.088 s
%------------------------------------------------------------------------------