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DT2H2X---1.9.5.THM-Ref.s

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%------------------------------------------------------------------------------
% File     : DT2H2X---1.9.5
% Problem  : SEU551^1 : TPTP v9.2.1. Bugfixed v4.0.0.
% 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 09:35:13 AM UTC 2026

% Result   : Theorem 2.09s 1.59s
% Output   : Refutation 2.09s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    7
%            Number of leaves      :    1
% Syntax   : Number of formulae    :    8 (   2 unt;   0 typ;   0 def)
%            Number of atoms       :  826 ( 208 equ;   0 cnn)
%            Maximal formula atoms :   68 ( 103 avg)
%            Number of connectives :  408 (   6   ~;   0   |; 134   &;   0   @)
%                                         (   0 <=>; 268  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   69 (  52 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   85 (  82 usr;  70 con; 0-2 aty)
%            Number of variables   :    0 (   0   ^;   0   !;   0   ?;   0   :)

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

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

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

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

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

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

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

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

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

thf(func_def_69,type,
    set2prop: $i > $o ).

thf(func_def_97,type,
    sK1: $i > $i ).

thf(func_def_98,type,
    sK2: ( $i > $o ) > $i ).

thf(func_def_99,type,
    sK3: ( $i > $o ) > $i > $i ).

thf(func_def_100,type,
    sK4: ( $i > $o ) > $i > $i ).

thf(f479,plain,
    $false,
    inference(trivial_inequality_removal,[status(thm)],[f297]) ).

thf(f297,plain,
    emptyset != emptyset,
    inference(cnf_transformation,[status(thm)],[f210]) ).

thf(f210,plain,
    ( ( setunionAx = $true )
    & ( vacuousDall = $true )
    & ( exuE3e = $true )
    & ( powersetI = $true )
    & ( setbeta = $true )
    & ( emptyInPowerset = $true )
    & ( nonemptyE1 = $true )
    & ( quantDeMorgan3 = $true )
    & ( setextAx = $true )
    & ( quantDeMorgan4 = $true )
    & ( singletonsswitch = $true )
    & ( setadjoinE = $true )
    & ( notinemptyset = $true )
    & ( emptysetE = $true )
    & ( exuE2 = $true )
    & ( setadjoinIR = $true )
    & ( setadjoinIL = $true )
    & ( exuI3 = $true )
    & ( emptyset != emptyset )
    & ( powersetAx = $true )
    & ( noeltsimpempty = $true )
    & ( omegaIndAx = $true )
    & ( foundationAx = $true )
    & ( descrp = $true )
    & ( nonemptyI1 = $true )
    & ( eqinunit = $true )
    & ( exuI1 = $true )
    & ( quantDeMorgan1 = $true )
    & ( emptyI = $true )
    & ( setadjoinOr = $true )
    & ( setunionE = $true )
    & ( dsetconstrEL = $true )
    & ( dsetconstrI = $true )
    & ( omega0Ax = $true )
    & ( replAx = $true )
    & ( quantDeMorgan2 = $true )
    & ( inCongP = $true )
    & ( upairsetE = $true )
    & ( subPowSU = $true )
    & ( prop2setI = $true )
    & ( notdallE = $true )
    & ( powersetE = $true )
    & ( upairsetIL = $true )
    & ( emptysetimpfalse = $true )
    & ( emptyinPowerset = $true )
    & ( emptyinunitempty = $true )
    & ( setunionI = $true )
    & ( in__Cong = $true )
    & ( setoftrueEq = $true )
    & ( setext = $true )
    & ( omegaSAx = $true )
    & ( exuI2 = $true )
    & ( nonemptyI = $true )
    & ( exuE3u = $true )
    & ( notdexE = $true )
    & ( emptyE1 = $true )
    & ( wellorderingAx = $true )
    & ( nonemptyImpWitness = $true )
    & ( setadjoinAx = $true )
    & ( emptysetAx = $true )
    & ( exu__Cong = $true )
    & ( uniqinunit = $true )
    & ( exuE1 = $true )
    & ( prop2setE = $true )
    & ( dsetconstrER = $true )
    & ( upairsetIR = $true )
    & ( prop2set2propI = $true )
    & ( notinsingleton = $true ) ),
    inference(flattening,[status(thm)],[f209]) ).

thf(f209,plain,
    ( ( emptyset != emptyset )
    & ( exu__Cong = $true )
    & ( exuE3u = $true )
    & ( in__Cong = $true )
    & ( inCongP = $true )
    & ( exuI2 = $true )
    & ( exuI3 = $true )
    & ( exuI1 = $true )
    & ( notdallE = $true )
    & ( notdexE = $true )
    & ( prop2set2propI = $true )
    & ( prop2setI = $true )
    & ( quantDeMorgan4 = $true )
    & ( quantDeMorgan3 = $true )
    & ( quantDeMorgan2 = $true )
    & ( quantDeMorgan1 = $true )
    & ( vacuousDall = $true )
    & ( emptyE1 = $true )
    & ( upairsetIR = $true )
    & ( upairsetIL = $true )
    & ( upairsetE = $true )
    & ( singletonsswitch = $true )
    & ( eqinunit = $true )
    & ( notinsingleton = $true )
    & ( uniqinunit = $true )
    & ( nonemptyImpWitness = $true )
    & ( exuE2 = $true )
    & ( subPowSU = $true )
    & ( setunionE = $true )
    & ( setunionI = $true )
    & ( powersetE = $true )
    & ( emptyInPowerset = $true )
    & ( emptyinPowerset = $true )
    & ( powersetI = $true )
    & ( setoftrueEq = $true )
    & ( setadjoinOr = $true )
    & ( setadjoinE = $true )
    & ( setadjoinIR = $true )
    & ( emptyinunitempty = $true )
    & ( setadjoinIL = $true )
    & ( nonemptyI1 = $true )
    & ( nonemptyI = $true )
    & ( nonemptyE1 = $true )
    & ( setbeta = $true )
    & ( noeltsimpempty = $true )
    & ( emptyI = $true )
    & ( setext = $true )
    & ( exuE3e = $true )
    & ( notinemptyset = $true )
    & ( emptysetimpfalse = $true )
    & ( emptysetE = $true )
    & ( prop2setE = $true )
    & ( exuE1 = $true )
    & ( dsetconstrER = $true )
    & ( dsetconstrEL = $true )
    & ( dsetconstrI = $true )
    & ( descrp = $true )
    & ( wellorderingAx = $true )
    & ( foundationAx = $true )
    & ( replAx = $true )
    & ( omegaIndAx = $true )
    & ( omegaSAx = $true )
    & ( omega0Ax = $true )
    & ( setunionAx = $true )
    & ( powersetAx = $true )
    & ( setadjoinAx = $true )
    & ( emptysetAx = $true )
    & ( setextAx = $true ) ),
    inference(ennf_transformation,[status(thm)],[f132]) ).

thf(f132,plain,
    ~ ( ( setextAx = $true )
     => ( ( emptysetAx = $true )
       => ( ( setadjoinAx = $true )
         => ( ( powersetAx = $true )
           => ( ( setunionAx = $true )
             => ( ( omega0Ax = $true )
               => ( ( omegaSAx = $true )
                 => ( ( omegaIndAx = $true )
                   => ( ( replAx = $true )
                     => ( ( foundationAx = $true )
                       => ( ( wellorderingAx = $true )
                         => ( ( descrp = $true )
                           => ( ( dsetconstrI = $true )
                             => ( ( dsetconstrEL = $true )
                               => ( ( dsetconstrER = $true )
                                 => ( ( exuE1 = $true )
                                   => ( ( prop2setE = $true )
                                     => ( ( emptysetE = $true )
                                       => ( ( emptysetimpfalse = $true )
                                         => ( ( notinemptyset = $true )
                                           => ( ( exuE3e = $true )
                                             => ( ( setext = $true )
                                               => ( ( emptyI = $true )
                                                 => ( ( noeltsimpempty = $true )
                                                   => ( ( setbeta = $true )
                                                     => ( ( nonemptyE1 = $true )
                                                       => ( ( nonemptyI = $true )
                                                         => ( ( nonemptyI1 = $true )
                                                           => ( ( setadjoinIL = $true )
                                                             => ( ( emptyinunitempty = $true )
                                                               => ( ( setadjoinIR = $true )
                                                                 => ( ( setadjoinE = $true )
                                                                   => ( ( setadjoinOr = $true )
                                                                     => ( ( setoftrueEq = $true )
                                                                       => ( ( powersetI = $true )
                                                                         => ( ( emptyinPowerset = $true )
                                                                           => ( ( emptyInPowerset = $true )
                                                                             => ( ( powersetE = $true )
                                                                               => ( ( setunionI = $true )
                                                                                 => ( ( setunionE = $true )
                                                                                   => ( ( subPowSU = $true )
                                                                                     => ( ( exuE2 = $true )
                                                                                       => ( ( nonemptyImpWitness = $true )
                                                                                         => ( ( uniqinunit = $true )
                                                                                           => ( ( notinsingleton = $true )
                                                                                             => ( ( eqinunit = $true )
                                                                                               => ( ( singletonsswitch = $true )
                                                                                                 => ( ( upairsetE = $true )
                                                                                                   => ( ( upairsetIL = $true )
                                                                                                     => ( ( upairsetIR = $true )
                                                                                                       => ( ( emptyE1 = $true )
                                                                                                         => ( ( vacuousDall = $true )
                                                                                                           => ( ( quantDeMorgan1 = $true )
                                                                                                             => ( ( quantDeMorgan2 = $true )
                                                                                                               => ( ( quantDeMorgan3 = $true )
                                                                                                                 => ( ( quantDeMorgan4 = $true )
                                                                                                                   => ( ( prop2setI = $true )
                                                                                                                     => ( ( prop2set2propI = $true )
                                                                                                                       => ( ( notdexE = $true )
                                                                                                                         => ( ( notdallE = $true )
                                                                                                                           => ( ( exuI1 = $true )
                                                                                                                             => ( ( exuI3 = $true )
                                                                                                                               => ( ( exuI2 = $true )
                                                                                                                                 => ( ( inCongP = $true )
                                                                                                                                   => ( ( in__Cong = $true )
                                                                                                                                     => ( ( exuE3u = $true )
                                                                                                                                       => ( ( exu__Cong = $true )
                                                                                                                                         => ( emptyset = emptyset ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    inference(fool_elimination,[status(thm)],[f131]) ).

thf(f131,plain,
    ~ ( setextAx
     => ( emptysetAx
       => ( setadjoinAx
         => ( powersetAx
           => ( setunionAx
             => ( omega0Ax
               => ( omegaSAx
                 => ( omegaIndAx
                   => ( replAx
                     => ( foundationAx
                       => ( wellorderingAx
                         => ( descrp
                           => ( dsetconstrI
                             => ( dsetconstrEL
                               => ( dsetconstrER
                                 => ( exuE1
                                   => ( prop2setE
                                     => ( emptysetE
                                       => ( emptysetimpfalse
                                         => ( notinemptyset
                                           => ( exuE3e
                                             => ( setext
                                               => ( emptyI
                                                 => ( noeltsimpempty
                                                   => ( setbeta
                                                     => ( nonemptyE1
                                                       => ( nonemptyI
                                                         => ( nonemptyI1
                                                           => ( setadjoinIL
                                                             => ( emptyinunitempty
                                                               => ( setadjoinIR
                                                                 => ( setadjoinE
                                                                   => ( setadjoinOr
                                                                     => ( setoftrueEq
                                                                       => ( powersetI
                                                                         => ( emptyinPowerset
                                                                           => ( emptyInPowerset
                                                                             => ( powersetE
                                                                               => ( setunionI
                                                                                 => ( setunionE
                                                                                   => ( subPowSU
                                                                                     => ( exuE2
                                                                                       => ( nonemptyImpWitness
                                                                                         => ( uniqinunit
                                                                                           => ( notinsingleton
                                                                                             => ( eqinunit
                                                                                               => ( singletonsswitch
                                                                                                 => ( upairsetE
                                                                                                   => ( upairsetIL
                                                                                                     => ( upairsetIR
                                                                                                       => ( emptyE1
                                                                                                         => ( vacuousDall
                                                                                                           => ( quantDeMorgan1
                                                                                                             => ( quantDeMorgan2
                                                                                                               => ( quantDeMorgan3
                                                                                                                 => ( quantDeMorgan4
                                                                                                                   => ( prop2setI
                                                                                                                     => ( prop2set2propI
                                                                                                                       => ( notdexE
                                                                                                                         => ( notdallE
                                                                                                                           => ( exuI1
                                                                                                                             => ( exuI3
                                                                                                                               => ( exuI2
                                                                                                                                 => ( inCongP
                                                                                                                                   => ( in__Cong
                                                                                                                                     => ( exuE3u
                                                                                                                                       => ( exu__Cong
                                                                                                                                         => ( emptyset = emptyset ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    inference(rectify,[status(thm)],[f71]) ).

thf(f71,negated_conjecture,
    ~ ( setextAx
     => ( emptysetAx
       => ( setadjoinAx
         => ( powersetAx
           => ( setunionAx
             => ( omega0Ax
               => ( omegaSAx
                 => ( omegaIndAx
                   => ( replAx
                     => ( foundationAx
                       => ( wellorderingAx
                         => ( descrp
                           => ( dsetconstrI
                             => ( dsetconstrEL
                               => ( dsetconstrER
                                 => ( exuE1
                                   => ( prop2setE
                                     => ( emptysetE
                                       => ( emptysetimpfalse
                                         => ( notinemptyset
                                           => ( exuE3e
                                             => ( setext
                                               => ( emptyI
                                                 => ( noeltsimpempty
                                                   => ( setbeta
                                                     => ( nonemptyE1
                                                       => ( nonemptyI
                                                         => ( nonemptyI1
                                                           => ( setadjoinIL
                                                             => ( emptyinunitempty
                                                               => ( setadjoinIR
                                                                 => ( setadjoinE
                                                                   => ( setadjoinOr
                                                                     => ( setoftrueEq
                                                                       => ( powersetI
                                                                         => ( emptyinPowerset
                                                                           => ( emptyInPowerset
                                                                             => ( powersetE
                                                                               => ( setunionI
                                                                                 => ( setunionE
                                                                                   => ( subPowSU
                                                                                     => ( exuE2
                                                                                       => ( nonemptyImpWitness
                                                                                         => ( uniqinunit
                                                                                           => ( notinsingleton
                                                                                             => ( eqinunit
                                                                                               => ( singletonsswitch
                                                                                                 => ( upairsetE
                                                                                                   => ( upairsetIL
                                                                                                     => ( upairsetIR
                                                                                                       => ( emptyE1
                                                                                                         => ( vacuousDall
                                                                                                           => ( quantDeMorgan1
                                                                                                             => ( quantDeMorgan2
                                                                                                               => ( quantDeMorgan3
                                                                                                                 => ( quantDeMorgan4
                                                                                                                   => ( prop2setI
                                                                                                                     => ( prop2set2propI
                                                                                                                       => ( notdexE
                                                                                                                         => ( notdallE
                                                                                                                           => ( exuI1
                                                                                                                             => ( exuI3
                                                                                                                               => ( exuI2
                                                                                                                                 => ( inCongP
                                                                                                                                   => ( in__Cong
                                                                                                                                     => ( exuE3u
                                                                                                                                       => ( exu__Cong
                                                                                                                                         => ( emptyset = emptyset ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    inference(negated_conjecture,[status(cth)],[f70]) ).

thf(f70,conjecture,
    ( setextAx
   => ( emptysetAx
     => ( setadjoinAx
       => ( powersetAx
         => ( setunionAx
           => ( omega0Ax
             => ( omegaSAx
               => ( omegaIndAx
                 => ( replAx
                   => ( foundationAx
                     => ( wellorderingAx
                       => ( descrp
                         => ( dsetconstrI
                           => ( dsetconstrEL
                             => ( dsetconstrER
                               => ( exuE1
                                 => ( prop2setE
                                   => ( emptysetE
                                     => ( emptysetimpfalse
                                       => ( notinemptyset
                                         => ( exuE3e
                                           => ( setext
                                             => ( emptyI
                                               => ( noeltsimpempty
                                                 => ( setbeta
                                                   => ( nonemptyE1
                                                     => ( nonemptyI
                                                       => ( nonemptyI1
                                                         => ( setadjoinIL
                                                           => ( emptyinunitempty
                                                             => ( setadjoinIR
                                                               => ( setadjoinE
                                                                 => ( setadjoinOr
                                                                   => ( setoftrueEq
                                                                     => ( powersetI
                                                                       => ( emptyinPowerset
                                                                         => ( emptyInPowerset
                                                                           => ( powersetE
                                                                             => ( setunionI
                                                                               => ( setunionE
                                                                                 => ( subPowSU
                                                                                   => ( exuE2
                                                                                     => ( nonemptyImpWitness
                                                                                       => ( uniqinunit
                                                                                         => ( notinsingleton
                                                                                           => ( eqinunit
                                                                                             => ( singletonsswitch
                                                                                               => ( upairsetE
                                                                                                 => ( upairsetIL
                                                                                                   => ( upairsetIR
                                                                                                     => ( emptyE1
                                                                                                       => ( vacuousDall
                                                                                                         => ( quantDeMorgan1
                                                                                                           => ( quantDeMorgan2
                                                                                                             => ( quantDeMorgan3
                                                                                                               => ( quantDeMorgan4
                                                                                                                 => ( prop2setI
                                                                                                                   => ( prop2set2propI
                                                                                                                     => ( notdexE
                                                                                                                       => ( notdallE
                                                                                                                         => ( exuI1
                                                                                                                           => ( exuI3
                                                                                                                             => ( exuI2
                                                                                                                               => ( inCongP
                                                                                                                                 => ( in__Cong
                                                                                                                                   => ( exuE3u
                                                                                                                                     => ( exu__Cong
                                                                                                                                       => ( emptyset = emptyset ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    file('/export/starexec/sandbox2/tmp/tmp.xQ5qklvtR3/DTF2THF_29955.p',emptyset__Cong) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.13  % Problem  : SEU551^1 : TPTP v9.2.1. Bugfixed v4.0.0.
% 0.00/0.15  % Command  : /export/starexec/sandbox2/solver/bin/run_DT2H2X /export/starexec/sandbox2/benchmark/theBenchmark.p 300
% 0.21/0.38  % Computer : n005.cluster.edu
% 0.21/0.38  % Model    : x86_64 x86_64
% 0.21/0.38  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.21/0.38  % Memory   : 8042.1875MB
% 0.21/0.38  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.21/0.38  % CPULimit : 300
% 0.21/0.38  % WCLimit  : 300
% 0.21/0.38  % DateTime : Tue Feb 24 12:26:45 EST 2026
% 0.21/0.38  % CPUTime  : 
% 0.21/0.38  Running /export/starexec/sandbox2/solver/bin/run_DT2H2X /export/starexec/sandbox2/benchmark/theBenchmark.p 300
% 0.32/0.47  ---- Original DTF file ---
% 0.32/0.47  thf(spec,logic,$$dhol).
% 0.32/0.47  %------------------------------------------------------------------------------
% 0.32/0.47  % File     : SEU551^1 : TPTP v9.2.1. Bugfixed v4.0.0.
% 0.32/0.47  % Domain   : Set Theory
% 0.32/0.47  % Problem  : A simple congruence property of emptyset
% 0.32/0.47  % Version  : Especial.
% 0.32/0.47  % English  :
% 0.32/0.47  
% 0.32/0.47  % Refs     : [Bro08] Brown (2008), Email to G. Sutcliffe
% 0.32/0.47  % Source   : [Bro08]
% 0.32/0.47  % Names    : ZFC053g [Bro08]
% 0.32/0.47  
% 0.32/0.47  % Status   : Theorem
% 0.32/0.47  % Rating   : 0.11 v9.1.0, 0.12 v9.0.0, 0.30 v8.2.0, 0.15 v8.1.0, 0.00 v7.4.0, 0.11 v7.2.0, 0.00 v7.1.0, 0.12 v7.0.0, 0.14 v6.4.0, 0.17 v6.3.0, 0.20 v6.2.0, 0.00 v6.1.0, 0.14 v5.5.0, 0.17 v5.4.0, 0.20 v5.3.0, 0.40 v5.1.0, 0.60 v5.0.0, 0.40 v4.1.0, 0.00 v4.0.1, 0.33 v4.0.0
% 0.32/0.47  % Syntax   : Number of formulae    :  149 (  69 unt;  79 typ;  69 def)
% 0.32/0.47  %            Number of atoms       :  378 (  98 equ;   0 cnn)
% 0.32/0.47  %            Maximal formula atoms :   68 (   5 avg)
% 0.32/0.47  %            Number of connectives :  621 (  21   ~;   5   |;  27   &; 386   @)
% 0.32/0.47  %                                         (  12 <=>; 170  =>;   0  <=;   0 <~>)
% 0.32/0.47  %            Maximal formula depth :   68 (   2 avg)
% 0.32/0.47  %            Number of types       :    2 (   0 usr)
% 0.32/0.47  %            Number of type conns  :   42 (  42   >;   0   *;   0   +;   0  <<)
% 0.32/0.47  %            Number of symbols     :   82 (  79 usr;  71 con; 0-2 aty)
% 0.32/0.47  %            Number of variables   :  214 (  21   ^; 165   !;  28   ?; 214   :)
% 0.32/0.47  % SPC      : TH0_THM_EQU_NAR
% 0.32/0.47  
% 0.32/0.47  % Comments : http://mathgate.info/detsetitem.php?id=27
% 0.32/0.47  % Bugfixes : v4.0.0 - Adding missing type delaration for in
% 0.32/0.47  %------------------------------------------------------------------------------
% 0.32/0.47  thf(in_type,type,
% 0.32/0.47      in: $i > $i > $o ).
% 0.32/0.47  
% 0.32/0.47  thf(exu_type,type,
% 0.32/0.47      exu: ( $i > $o ) > $o ).
% 0.32/0.47  
% 0.32/0.47  thf(exu,definition,
% 0.32/0.47      ( exu
% 0.32/0.47      = ( ^ [Xphi: $i > $o] :
% 0.32/0.47          ? [Xx: $i] :
% 0.32/0.47            ( ( Xphi @ Xx )
% 0.32/0.47            & ! [Xy: $i] :
% 0.32/0.47                ( ( Xphi @ Xy )
% 0.32/0.47               => ( Xx = Xy ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(setextAx_type,type,
% 0.32/0.47      setextAx: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(setextAx,definition,
% 0.32/0.47      ( setextAx
% 0.32/0.47      = ( ! [A: $i,B: $i] :
% 0.32/0.47            ( ! [Xx: $i] :
% 0.32/0.47                ( ( in @ Xx @ A )
% 0.32/0.47              <=> ( in @ Xx @ B ) )
% 0.32/0.47           => ( A = B ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(emptyset_type,type,
% 0.32/0.47      emptyset: $i ).
% 0.32/0.47  
% 0.32/0.47  thf(emptysetAx_type,type,
% 0.32/0.47      emptysetAx: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(emptysetAx,definition,
% 0.32/0.47      ( emptysetAx
% 0.32/0.47      = ( ! [Xx: $i] :
% 0.32/0.47            ~ ( in @ Xx @ emptyset ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(setadjoin_type,type,
% 0.32/0.47      setadjoin: $i > $i > $i ).
% 0.32/0.47  
% 0.32/0.47  thf(setadjoinAx_type,type,
% 0.32/0.47      setadjoinAx: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(setadjoinAx,definition,
% 0.32/0.47      ( setadjoinAx
% 0.32/0.47      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 0.32/0.47            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 0.32/0.47          <=> ( ( Xy = Xx )
% 0.32/0.47              | ( in @ Xy @ A ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(powerset_type,type,
% 0.32/0.47      powerset: $i > $i ).
% 0.32/0.47  
% 0.32/0.47  thf(powersetAx_type,type,
% 0.32/0.47      powersetAx: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(powersetAx,definition,
% 0.32/0.47      ( powersetAx
% 0.32/0.47      = ( ! [A: $i,B: $i] :
% 0.32/0.47            ( ( in @ B @ ( powerset @ A ) )
% 0.32/0.47          <=> ! [Xx: $i] :
% 0.32/0.47                ( ( in @ Xx @ B )
% 0.32/0.47               => ( in @ Xx @ A ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(setunion_type,type,
% 0.32/0.47      setunion: $i > $i ).
% 0.32/0.47  
% 0.32/0.47  thf(setunionAx_type,type,
% 0.32/0.47      setunionAx: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(setunionAx,definition,
% 0.32/0.47      ( setunionAx
% 0.32/0.47      = ( ! [A: $i,Xx: $i] :
% 0.32/0.47            ( ( in @ Xx @ ( setunion @ A ) )
% 0.32/0.47          <=> ? [B: $i] :
% 0.32/0.47                ( ( in @ Xx @ B )
% 0.32/0.47                & ( in @ B @ A ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(omega_type,type,
% 0.32/0.47      omega: $i ).
% 0.32/0.47  
% 0.32/0.47  thf(omega0Ax_type,type,
% 0.32/0.47      omega0Ax: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(omega0Ax,definition,
% 0.32/0.47      ( omega0Ax
% 0.32/0.47      = ( in @ emptyset @ omega ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(omegaSAx_type,type,
% 0.32/0.47      omegaSAx: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(omegaSAx,definition,
% 0.32/0.47      ( omegaSAx
% 0.32/0.47      = ( ! [Xx: $i] :
% 0.32/0.47            ( ( in @ Xx @ omega )
% 0.32/0.47           => ( in @ ( setadjoin @ Xx @ Xx ) @ omega ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(omegaIndAx_type,type,
% 0.32/0.47      omegaIndAx: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(omegaIndAx,definition,
% 0.32/0.47      ( omegaIndAx
% 0.32/0.47      = ( ! [A: $i] :
% 0.32/0.47            ( ( ( in @ emptyset @ A )
% 0.32/0.47              & ! [Xx: $i] :
% 0.32/0.47                  ( ( ( in @ Xx @ omega )
% 0.32/0.47                    & ( in @ Xx @ A ) )
% 0.32/0.47                 => ( in @ ( setadjoin @ Xx @ Xx ) @ A ) ) )
% 0.32/0.47           => ! [Xx: $i] :
% 0.32/0.47                ( ( in @ Xx @ omega )
% 0.32/0.47               => ( in @ Xx @ A ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(replAx_type,type,
% 0.32/0.47      replAx: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(replAx,definition,
% 0.32/0.47      ( replAx
% 0.32/0.47      = ( ! [Xphi: $i > $i > $o,A: $i] :
% 0.32/0.47            ( ! [Xx: $i] :
% 0.32/0.47                ( ( in @ Xx @ A )
% 0.32/0.47               => ( exu
% 0.32/0.47                  @ ^ [Xy: $i] : ( Xphi @ Xx @ Xy ) ) )
% 0.32/0.47           => ? [B: $i] :
% 0.32/0.47              ! [Xx: $i] :
% 0.32/0.47                ( ( in @ Xx @ B )
% 0.32/0.47              <=> ? [Xy: $i] :
% 0.32/0.47                    ( ( in @ Xy @ A )
% 0.32/0.47                    & ( Xphi @ Xy @ Xx ) ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(foundationAx_type,type,
% 0.32/0.47      foundationAx: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(foundationAx,definition,
% 0.32/0.47      ( foundationAx
% 0.32/0.47      = ( ! [A: $i] :
% 0.32/0.47            ( ? [Xx: $i] : ( in @ Xx @ A )
% 0.32/0.47           => ? [B: $i] :
% 0.32/0.47                ( ( in @ B @ A )
% 0.32/0.47                & ~ ? [Xx: $i] :
% 0.32/0.47                      ( ( in @ Xx @ B )
% 0.32/0.47                      & ( in @ Xx @ A ) ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(wellorderingAx_type,type,
% 0.32/0.47      wellorderingAx: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(wellorderingAx,definition,
% 0.32/0.47      ( wellorderingAx
% 0.32/0.47      = ( ! [A: $i] :
% 0.32/0.47          ? [B: $i] :
% 0.32/0.47            ( ! [C: $i] :
% 0.32/0.47                ( ( in @ C @ B )
% 0.32/0.47               => ! [Xx: $i] :
% 0.32/0.47                    ( ( in @ Xx @ C )
% 0.32/0.47                   => ( in @ Xx @ A ) ) )
% 0.32/0.47            & ! [Xx: $i,Xy: $i] :
% 0.32/0.47                ( ( ( in @ Xx @ A )
% 0.32/0.47                  & ( in @ Xy @ A ) )
% 0.32/0.47               => ( ! [C: $i] :
% 0.32/0.47                      ( ( in @ C @ B )
% 0.32/0.47                     => ( ( in @ Xx @ C )
% 0.32/0.47                      <=> ( in @ Xy @ C ) ) )
% 0.32/0.47                 => ( Xx = Xy ) ) )
% 0.32/0.47            & ! [C: $i,D: $i] :
% 0.32/0.47                ( ( ( in @ C @ B )
% 0.32/0.47                  & ( in @ D @ B ) )
% 0.32/0.47               => ( ! [Xx: $i] :
% 0.32/0.47                      ( ( in @ Xx @ C )
% 0.32/0.47                     => ( in @ Xx @ D ) )
% 0.32/0.47                  | ! [Xx: $i] :
% 0.32/0.47                      ( ( in @ Xx @ D )
% 0.32/0.47                     => ( in @ Xx @ C ) ) ) )
% 0.32/0.47            & ! [C: $i] :
% 0.32/0.47                ( ( ! [Xx: $i] :
% 0.32/0.47                      ( ( in @ Xx @ C )
% 0.32/0.47                     => ( in @ Xx @ A ) )
% 0.32/0.47                  & ? [Xx: $i] : ( in @ Xx @ C ) )
% 0.32/0.47               => ? [D: $i,Xx: $i] :
% 0.32/0.47                    ( ( in @ D @ B )
% 0.32/0.47                    & ( in @ Xx @ C )
% 0.32/0.47                    & ~ ? [Xy: $i] :
% 0.32/0.47                          ( ( in @ Xy @ D )
% 0.32/0.47                          & ( in @ Xy @ C ) )
% 0.32/0.47                    & ! [E: $i] :
% 0.32/0.47                        ( ( in @ E @ B )
% 0.32/0.47                       => ( ! [Xy: $i] :
% 0.32/0.47                              ( ( in @ Xy @ E )
% 0.32/0.47                             => ( in @ Xy @ D ) )
% 0.32/0.47                          | ( in @ Xx @ E ) ) ) ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(descr_type,type,
% 0.32/0.47      descr: ( $i > $o ) > $i ).
% 0.32/0.47  
% 0.32/0.47  thf(descrp_type,type,
% 0.32/0.47      descrp: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(descrp,definition,
% 0.32/0.47      ( descrp
% 0.32/0.47      = ( ! [Xphi: $i > $o] :
% 0.32/0.47            ( ( exu
% 0.32/0.47              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.32/0.47           => ( Xphi
% 0.32/0.47              @ ( descr
% 0.32/0.47                @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(dsetconstr_type,type,
% 0.32/0.47      dsetconstr: $i > ( $i > $o ) > $i ).
% 0.32/0.47  
% 0.32/0.47  thf(dsetconstrI_type,type,
% 0.32/0.47      dsetconstrI: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(dsetconstrI,definition,
% 0.32/0.47      ( dsetconstrI
% 0.32/0.47      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.32/0.47            ( ( in @ Xx @ A )
% 0.32/0.47           => ( ( Xphi @ Xx )
% 0.32/0.47             => ( in @ Xx
% 0.32/0.47                @ ( dsetconstr @ A
% 0.32/0.47                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(dsetconstrEL_type,type,
% 0.32/0.47      dsetconstrEL: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(dsetconstrEL,definition,
% 0.32/0.47      ( dsetconstrEL
% 0.32/0.47      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.32/0.47            ( ( in @ Xx
% 0.32/0.47              @ ( dsetconstr @ A
% 0.32/0.47                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 0.32/0.47           => ( in @ Xx @ A ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(dsetconstrER_type,type,
% 0.32/0.47      dsetconstrER: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(dsetconstrER,definition,
% 0.32/0.47      ( dsetconstrER
% 0.32/0.47      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.32/0.47            ( ( in @ Xx
% 0.32/0.47              @ ( dsetconstr @ A
% 0.32/0.47                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 0.32/0.47           => ( Xphi @ Xx ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(exuE1_type,type,
% 0.32/0.47      exuE1: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(exuE1,definition,
% 0.32/0.47      ( exuE1
% 0.32/0.47      = ( ! [Xphi: $i > $o] :
% 0.32/0.47            ( ( exu
% 0.32/0.47              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.32/0.47           => ? [Xx: $i] :
% 0.32/0.47                ( ( Xphi @ Xx )
% 0.32/0.47                & ! [Xy: $i] :
% 0.32/0.47                    ( ( Xphi @ Xy )
% 0.32/0.47                   => ( Xx = Xy ) ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(prop2set_type,type,
% 0.32/0.47      prop2set: $o > $i ).
% 0.32/0.47  
% 0.32/0.47  thf(prop2setE_type,type,
% 0.32/0.47      prop2setE: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(prop2setE,definition,
% 0.32/0.47      ( prop2setE
% 0.32/0.47      = ( ! [Xphi: $o,Xx: $i] :
% 0.32/0.47            ( ( in @ Xx @ ( prop2set @ Xphi ) )
% 0.32/0.47           => Xphi ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(emptysetE_type,type,
% 0.32/0.47      emptysetE: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(emptysetE,definition,
% 0.32/0.47      ( emptysetE
% 0.32/0.47      = ( ! [Xx: $i] :
% 0.32/0.47            ( ( in @ Xx @ emptyset )
% 0.32/0.47           => ! [Xphi: $o] : Xphi ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(emptysetimpfalse_type,type,
% 0.32/0.47      emptysetimpfalse: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(emptysetimpfalse,definition,
% 0.32/0.47      ( emptysetimpfalse
% 0.32/0.47      = ( ! [Xx: $i] :
% 0.32/0.47            ( ( in @ Xx @ emptyset )
% 0.32/0.47           => $false ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(notinemptyset_type,type,
% 0.32/0.47      notinemptyset: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(notinemptyset,definition,
% 0.32/0.47      ( notinemptyset
% 0.32/0.47      = ( ! [Xx: $i] :
% 0.32/0.47            ~ ( in @ Xx @ emptyset ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(exuE3e_type,type,
% 0.32/0.47      exuE3e: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(exuE3e,definition,
% 0.32/0.47      ( exuE3e
% 0.32/0.47      = ( ! [Xphi: $i > $o] :
% 0.32/0.47            ( ( exu
% 0.32/0.47              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.32/0.47           => ? [Xx: $i] : ( Xphi @ Xx ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(setext_type,type,
% 0.32/0.47      setext: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(setext,definition,
% 0.32/0.47      ( setext
% 0.32/0.47      = ( ! [A: $i,B: $i] :
% 0.32/0.47            ( ! [Xx: $i] :
% 0.32/0.47                ( ( in @ Xx @ A )
% 0.32/0.47               => ( in @ Xx @ B ) )
% 0.32/0.47           => ( ! [Xx: $i] :
% 0.32/0.47                  ( ( in @ Xx @ B )
% 0.32/0.47                 => ( in @ Xx @ A ) )
% 0.32/0.47             => ( A = B ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(emptyI_type,type,
% 0.32/0.47      emptyI: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(emptyI,definition,
% 0.32/0.47      ( emptyI
% 0.32/0.47      = ( ! [A: $i] :
% 0.32/0.47            ( ! [Xx: $i] :
% 0.32/0.47                ~ ( in @ Xx @ A )
% 0.32/0.47           => ( A = emptyset ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(noeltsimpempty_type,type,
% 0.32/0.47      noeltsimpempty: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(noeltsimpempty,definition,
% 0.32/0.47      ( noeltsimpempty
% 0.32/0.47      = ( ! [A: $i] :
% 0.32/0.47            ( ! [Xx: $i] :
% 0.32/0.47                ~ ( in @ Xx @ A )
% 0.32/0.47           => ( A = emptyset ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(setbeta_type,type,
% 0.32/0.47      setbeta: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(setbeta,definition,
% 0.32/0.47      ( setbeta
% 0.32/0.47      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.32/0.47            ( ( in @ Xx @ A )
% 0.32/0.47           => ( ( in @ Xx
% 0.32/0.47                @ ( dsetconstr @ A
% 0.32/0.47                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 0.32/0.47            <=> ( Xphi @ Xx ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(nonempty_type,type,
% 0.32/0.47      nonempty: $i > $o ).
% 0.32/0.47  
% 0.32/0.47  thf(nonempty,definition,
% 0.32/0.47      ( nonempty
% 0.32/0.47      = ( ^ [Xx: $i] : ( Xx != emptyset ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(nonemptyE1_type,type,
% 0.32/0.47      nonemptyE1: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(nonemptyE1,definition,
% 0.32/0.47      ( nonemptyE1
% 0.32/0.47      = ( ! [A: $i] :
% 0.32/0.47            ( ( nonempty @ A )
% 0.32/0.47           => ? [Xx: $i] : ( in @ Xx @ A ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(nonemptyI_type,type,
% 0.32/0.47      nonemptyI: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(nonemptyI,definition,
% 0.32/0.47      ( nonemptyI
% 0.32/0.47      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.32/0.47            ( ( in @ Xx @ A )
% 0.32/0.47           => ( ( Xphi @ Xx )
% 0.32/0.47             => ( nonempty
% 0.32/0.47                @ ( dsetconstr @ A
% 0.32/0.47                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(nonemptyI1_type,type,
% 0.32/0.47      nonemptyI1: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(nonemptyI1,definition,
% 0.32/0.47      ( nonemptyI1
% 0.32/0.47      = ( ! [A: $i] :
% 0.32/0.47            ( ? [Xx: $i] : ( in @ Xx @ A )
% 0.32/0.47           => ( nonempty @ A ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(setadjoinIL_type,type,
% 0.32/0.47      setadjoinIL: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(setadjoinIL,definition,
% 0.32/0.47      ( setadjoinIL
% 0.32/0.47      = ( ! [Xx: $i,Xy: $i] : ( in @ Xx @ ( setadjoin @ Xx @ Xy ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(emptyinunitempty_type,type,
% 0.32/0.47      emptyinunitempty: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(emptyinunitempty,definition,
% 0.32/0.47      ( emptyinunitempty
% 0.32/0.47      = ( in @ emptyset @ ( setadjoin @ emptyset @ emptyset ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(setadjoinIR_type,type,
% 0.32/0.47      setadjoinIR: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(setadjoinIR,definition,
% 0.32/0.47      ( setadjoinIR
% 0.32/0.47      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 0.32/0.47            ( ( in @ Xy @ A )
% 0.32/0.47           => ( in @ Xy @ ( setadjoin @ Xx @ A ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(setadjoinE_type,type,
% 0.32/0.47      setadjoinE: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(setadjoinE,definition,
% 0.32/0.47      ( setadjoinE
% 0.32/0.47      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 0.32/0.47            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 0.32/0.47           => ! [Xphi: $o] :
% 0.32/0.47                ( ( ( Xy = Xx )
% 0.32/0.47                 => Xphi )
% 0.32/0.47               => ( ( ( in @ Xy @ A )
% 0.32/0.47                   => Xphi )
% 0.32/0.47                 => Xphi ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(setadjoinOr_type,type,
% 0.32/0.47      setadjoinOr: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(setadjoinOr,definition,
% 0.32/0.47      ( setadjoinOr
% 0.32/0.47      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 0.32/0.47            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 0.32/0.47           => ( ( Xy = Xx )
% 0.32/0.47              | ( in @ Xy @ A ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(setoftrueEq_type,type,
% 0.32/0.47      setoftrueEq: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(setoftrueEq,definition,
% 0.32/0.47      ( setoftrueEq
% 0.32/0.47      = ( ! [A: $i] :
% 0.32/0.47            ( ( dsetconstr @ A
% 0.32/0.47              @ ^ [Xx: $i] : $true )
% 0.32/0.47            = A ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(powersetI_type,type,
% 0.32/0.47      powersetI: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(powersetI,definition,
% 0.32/0.47      ( powersetI
% 0.32/0.47      = ( ! [A: $i,B: $i] :
% 0.32/0.47            ( ! [Xx: $i] :
% 0.32/0.47                ( ( in @ Xx @ B )
% 0.32/0.47               => ( in @ Xx @ A ) )
% 0.32/0.47           => ( in @ B @ ( powerset @ A ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(emptyinPowerset_type,type,
% 0.32/0.47      emptyinPowerset: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(emptyinPowerset,definition,
% 0.32/0.47      ( emptyinPowerset
% 0.32/0.47      = ( ! [A: $i] : ( in @ emptyset @ ( powerset @ A ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(emptyInPowerset_type,type,
% 0.32/0.47      emptyInPowerset: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(emptyInPowerset,definition,
% 0.32/0.47      ( emptyInPowerset
% 0.32/0.47      = ( ! [A: $i] : ( in @ emptyset @ ( powerset @ A ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(powersetE_type,type,
% 0.32/0.47      powersetE: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(powersetE,definition,
% 0.32/0.47      ( powersetE
% 0.32/0.47      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.32/0.47            ( ( in @ B @ ( powerset @ A ) )
% 0.32/0.47           => ( ( in @ Xx @ B )
% 0.32/0.47             => ( in @ Xx @ A ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(setunionI_type,type,
% 0.32/0.47      setunionI: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(setunionI,definition,
% 0.32/0.47      ( setunionI
% 0.32/0.47      = ( ! [A: $i,Xx: $i,B: $i] :
% 0.32/0.47            ( ( in @ Xx @ B )
% 0.32/0.47           => ( ( in @ B @ A )
% 0.32/0.47             => ( in @ Xx @ ( setunion @ A ) ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(setunionE_type,type,
% 0.32/0.47      setunionE: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(setunionE,definition,
% 0.32/0.47      ( setunionE
% 0.32/0.47      = ( ! [A: $i,Xx: $i] :
% 0.32/0.47            ( ( in @ Xx @ ( setunion @ A ) )
% 0.32/0.47           => ! [Xphi: $o] :
% 0.32/0.47                ( ! [B: $i] :
% 0.32/0.47                    ( ( in @ Xx @ B )
% 0.32/0.47                   => ( ( in @ B @ A )
% 0.32/0.47                     => Xphi ) )
% 0.32/0.47               => Xphi ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(subPowSU_type,type,
% 0.32/0.47      subPowSU: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(subPowSU,definition,
% 0.32/0.47      ( subPowSU
% 0.32/0.47      = ( ! [A: $i,Xx: $i] :
% 0.32/0.47            ( ( in @ Xx @ A )
% 0.32/0.47           => ( in @ Xx @ ( powerset @ ( setunion @ A ) ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(exuE2_type,type,
% 0.32/0.47      exuE2: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(exuE2,definition,
% 0.32/0.47      ( exuE2
% 0.32/0.47      = ( ! [Xphi: $i > $o] :
% 0.32/0.47            ( ( exu
% 0.32/0.47              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.32/0.47           => ? [Xx: $i] :
% 0.32/0.47              ! [Xy: $i] :
% 0.32/0.47                ( ( Xphi @ Xy )
% 0.32/0.47              <=> ( Xy = Xx ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(nonemptyImpWitness_type,type,
% 0.32/0.47      nonemptyImpWitness: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(nonemptyImpWitness,definition,
% 0.32/0.47      ( nonemptyImpWitness
% 0.32/0.47      = ( ! [A: $i] :
% 0.32/0.47            ( ( nonempty @ A )
% 0.32/0.47           => ? [Xx: $i] :
% 0.32/0.47                ( ( in @ Xx @ A )
% 0.32/0.47                & $true ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(uniqinunit_type,type,
% 0.32/0.47      uniqinunit: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(uniqinunit,definition,
% 0.32/0.47      ( uniqinunit
% 0.32/0.47      = ( ! [Xx: $i,Xy: $i] :
% 0.32/0.47            ( ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) )
% 0.32/0.47           => ( Xx = Xy ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(notinsingleton_type,type,
% 0.32/0.47      notinsingleton: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(notinsingleton,definition,
% 0.32/0.47      ( notinsingleton
% 0.32/0.47      = ( ! [Xx: $i,Xy: $i] :
% 0.32/0.47            ( ( Xx != Xy )
% 0.32/0.47           => ~ ( in @ Xy @ ( setadjoin @ Xx @ emptyset ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(eqinunit_type,type,
% 0.32/0.47      eqinunit: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(eqinunit,definition,
% 0.32/0.47      ( eqinunit
% 0.32/0.47      = ( ! [Xx: $i,Xy: $i] :
% 0.32/0.47            ( ( Xx = Xy )
% 0.32/0.47           => ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(singletonsswitch_type,type,
% 0.32/0.47      singletonsswitch: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(singletonsswitch,definition,
% 0.32/0.47      ( singletonsswitch
% 0.32/0.47      = ( ! [Xx: $i,Xy: $i] :
% 0.32/0.47            ( ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) )
% 0.32/0.47           => ( in @ Xy @ ( setadjoin @ Xx @ emptyset ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(upairsetE_type,type,
% 0.32/0.47      upairsetE: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(upairsetE,definition,
% 0.32/0.47      ( upairsetE
% 0.32/0.47      = ( ! [Xx: $i,Xy: $i,Xz: $i] :
% 0.32/0.47            ( ( in @ Xz @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) )
% 0.32/0.47           => ( ( Xz = Xx )
% 0.32/0.47              | ( Xz = Xy ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(upairsetIL_type,type,
% 0.32/0.47      upairsetIL: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(upairsetIL,definition,
% 0.32/0.47      ( upairsetIL
% 0.32/0.47      = ( ! [Xx: $i,Xy: $i] : ( in @ Xx @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(upairsetIR_type,type,
% 0.32/0.47      upairsetIR: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(upairsetIR,definition,
% 0.32/0.47      ( upairsetIR
% 0.32/0.47      = ( ! [Xx: $i,Xy: $i] : ( in @ Xy @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(emptyE1_type,type,
% 0.32/0.47      emptyE1: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(emptyE1,definition,
% 0.32/0.47      ( emptyE1
% 0.32/0.47      = ( ! [A: $i,Xphi: $i > $o] :
% 0.32/0.47            ( ? [Xx: $i] :
% 0.32/0.47                ( ( in @ Xx @ A )
% 0.32/0.47                & ( Xphi @ Xx ) )
% 0.32/0.47           => ( ( ( dsetconstr @ A
% 0.32/0.47                  @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.32/0.47                = emptyset )
% 0.32/0.47             => $false ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(vacuousDall_type,type,
% 0.32/0.47      vacuousDall: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(vacuousDall,definition,
% 0.32/0.47      ( vacuousDall
% 0.32/0.47      = ( ! [Xphi: $i > $o,Xx: $i] :
% 0.32/0.47            ( ( in @ Xx @ emptyset )
% 0.32/0.47           => ( Xphi @ Xx ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(quantDeMorgan1_type,type,
% 0.32/0.47      quantDeMorgan1: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(quantDeMorgan1,definition,
% 0.32/0.47      ( quantDeMorgan1
% 0.32/0.47      = ( ! [A: $i,Xphi: $i > $o] :
% 0.32/0.47            ( ~ ! [Xx: $i] :
% 0.32/0.47                  ( ( in @ Xx @ A )
% 0.32/0.47                 => ( Xphi @ Xx ) )
% 0.32/0.47           => ? [Xx: $i] :
% 0.32/0.47                ( ( in @ Xx @ A )
% 0.32/0.47                & ~ ( Xphi @ Xx ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(quantDeMorgan2_type,type,
% 0.32/0.47      quantDeMorgan2: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(quantDeMorgan2,definition,
% 0.32/0.47      ( quantDeMorgan2
% 0.32/0.47      = ( ! [A: $i,Xphi: $i > $o] :
% 0.32/0.47            ( ! [Xx: $i] :
% 0.32/0.47                ( ( in @ Xx @ A )
% 0.32/0.47               => ~ ( Xphi @ Xx ) )
% 0.32/0.47           => ~ ? [Xx: $i] :
% 0.32/0.47                  ( ( in @ Xx @ A )
% 0.32/0.47                  & ( Xphi @ Xx ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(quantDeMorgan3_type,type,
% 0.32/0.47      quantDeMorgan3: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(quantDeMorgan3,definition,
% 0.32/0.47      ( quantDeMorgan3
% 0.32/0.47      = ( ! [A: $i,Xphi: $i > $o] :
% 0.32/0.47            ( ~ ? [Xx: $i] :
% 0.32/0.47                  ( ( in @ Xx @ A )
% 0.32/0.47                  & ( Xphi @ Xx ) )
% 0.32/0.47           => ! [Xx: $i] :
% 0.32/0.47                ( ( in @ Xx @ A )
% 0.32/0.47               => ~ ( Xphi @ Xx ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(quantDeMorgan4_type,type,
% 0.32/0.47      quantDeMorgan4: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(quantDeMorgan4,definition,
% 0.32/0.47      ( quantDeMorgan4
% 0.32/0.47      = ( ! [A: $i,Xphi: $i > $o] :
% 0.32/0.47            ( ? [Xx: $i] :
% 0.32/0.47                ( ( in @ Xx @ A )
% 0.32/0.47                & ~ ( Xphi @ Xx ) )
% 0.32/0.47           => ~ ! [Xx: $i] :
% 0.32/0.47                  ( ( in @ Xx @ A )
% 0.32/0.47                 => ( Xphi @ Xx ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(prop2setI_type,type,
% 0.32/0.47      prop2setI: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(prop2setI,definition,
% 0.32/0.47      ( prop2setI
% 0.32/0.47      = ( ! [Xphi: $o] :
% 0.32/0.47            ( Xphi
% 0.32/0.47           => ( in @ emptyset @ ( prop2set @ Xphi ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(set2prop_type,type,
% 0.32/0.47      set2prop: $i > $o ).
% 0.32/0.47  
% 0.32/0.47  thf(prop2set2propI_type,type,
% 0.32/0.47      prop2set2propI: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(prop2set2propI,definition,
% 0.32/0.47      ( prop2set2propI
% 0.32/0.47      = ( ! [Xphi: $o] :
% 0.32/0.47            ( Xphi
% 0.32/0.47           => ( set2prop @ ( prop2set @ Xphi ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(notdexE_type,type,
% 0.32/0.47      notdexE: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(notdexE,definition,
% 0.32/0.47      ( notdexE
% 0.32/0.47      = ( ! [A: $i,Xphi: $i > $o] :
% 0.32/0.47            ( ~ ? [Xx: $i] :
% 0.32/0.47                  ( ( in @ Xx @ A )
% 0.32/0.47                  & ( Xphi @ Xx ) )
% 0.32/0.47           => ! [Xx: $i] :
% 0.32/0.47                ( ( in @ Xx @ A )
% 0.32/0.47               => ~ ( Xphi @ Xx ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(notdallE_type,type,
% 0.32/0.47      notdallE: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(notdallE,definition,
% 0.32/0.47      ( notdallE
% 0.32/0.47      = ( ! [A: $i,Xphi: $i > $o] :
% 0.32/0.47            ( ~ ! [Xx: $i] :
% 0.32/0.47                  ( ( in @ Xx @ A )
% 0.32/0.47                 => ( Xphi @ Xx ) )
% 0.32/0.47           => ? [Xx: $i] :
% 0.32/0.47                ( ( in @ Xx @ A )
% 0.32/0.47                & ~ ( Xphi @ Xx ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(exuI1_type,type,
% 0.32/0.47      exuI1: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(exuI1,definition,
% 0.32/0.47      ( exuI1
% 0.32/0.47      = ( ! [Xphi: $i > $o] :
% 0.32/0.47            ( ? [Xx: $i] :
% 0.32/0.47                ( ( Xphi @ Xx )
% 0.32/0.47                & ! [Xy: $i] :
% 0.32/0.47                    ( ( Xphi @ Xy )
% 0.32/0.47                   => ( Xx = Xy ) ) )
% 0.32/0.47           => ( exu
% 0.32/0.47              @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(exuI3_type,type,
% 0.32/0.47      exuI3: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(exuI3,definition,
% 0.32/0.47      ( exuI3
% 0.32/0.47      = ( ! [Xphi: $i > $o] :
% 0.32/0.47            ( ? [Xx: $i] : ( Xphi @ Xx )
% 0.32/0.47           => ( ! [Xx: $i,Xy: $i] :
% 0.32/0.47                  ( ( Xphi @ Xx )
% 0.32/0.47                 => ( ( Xphi @ Xy )
% 0.32/0.47                   => ( Xx = Xy ) ) )
% 0.32/0.47             => ( exu
% 0.32/0.47                @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(exuI2_type,type,
% 0.32/0.47      exuI2: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(exuI2,definition,
% 0.32/0.47      ( exuI2
% 0.32/0.47      = ( ! [Xphi: $i > $o] :
% 0.32/0.47            ( ? [Xx: $i] :
% 0.32/0.47              ! [Xy: $i] :
% 0.32/0.47                ( ( Xphi @ Xy )
% 0.32/0.47              <=> ( Xy = Xx ) )
% 0.32/0.47           => ( exu
% 0.32/0.47              @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(inCongP_type,type,
% 0.32/0.47      inCongP: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(inCongP,definition,
% 0.32/0.47      ( inCongP
% 0.32/0.47      = ( ! [A: $i,B: $i] :
% 0.32/0.47            ( ( A = B )
% 0.32/0.47           => ! [Xx: $i,Xy: $i] :
% 0.32/0.47                ( ( Xx = Xy )
% 0.32/0.47               => ( ( in @ Xx @ A )
% 0.32/0.47                 => ( in @ Xy @ B ) ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(in__Cong_type,type,
% 0.32/0.47      in__Cong: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(in__Cong,definition,
% 0.32/0.47      ( in__Cong
% 0.32/0.47      = ( ! [A: $i,B: $i] :
% 0.32/0.47            ( ( A = B )
% 0.32/0.47           => ! [Xx: $i,Xy: $i] :
% 0.32/0.47                ( ( Xx = Xy )
% 0.32/0.47               => ( ( in @ Xx @ A )
% 0.32/0.47                <=> ( in @ Xy @ B ) ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(exuE3u_type,type,
% 0.32/0.47      exuE3u: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(exuE3u,definition,
% 0.32/0.47      ( exuE3u
% 0.32/0.47      = ( ! [Xphi: $i > $o] :
% 0.32/0.47            ( ( exu
% 0.32/0.47              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.32/0.47           => ! [Xx: $i,Xy: $i] :
% 0.32/0.47                ( ( Xphi @ Xx )
% 0.32/0.47               => ( ( Xphi @ Xy )
% 0.32/0.47                 => ( Xx = Xy ) ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(exu__Cong_type,type,
% 0.32/0.47      exu__Cong: $o ).
% 0.32/0.47  
% 0.32/0.47  thf(exu__Cong,definition,
% 0.32/0.47      ( exu__Cong
% 0.32/0.47      = ( ! [Xphi: $i > $o,Xpsi: $i > $o] :
% 0.32/0.47            ( ! [Xx: $i,Xy: $i] :
% 0.32/0.47                ( ( Xx = Xy )
% 0.32/0.47               => ( ( Xphi @ Xx )
% 0.32/0.47                <=> ( Xpsi @ Xy ) ) )
% 0.32/0.47           => ( ( exu
% 0.32/0.47                @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.32/0.47            <=> ( exu
% 0.32/0.47                @ ^ [Xx: $i] : ( Xpsi @ Xx ) ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(emptyset__Cong,conjecture,
% 0.32/0.47      ( setextAx
% 0.32/0.47     => ( emptysetAx
% 0.32/0.47       => ( setadjoinAx
% 0.32/0.47         => ( powersetAx
% 0.32/0.47           => ( setunionAx
% 0.32/0.47             => ( omega0Ax
% 0.32/0.47               => ( omegaSAx
% 0.32/0.47                 => ( omegaIndAx
% 0.32/0.47                   => ( replAx
% 0.32/0.47                     => ( foundationAx
% 0.32/0.47                       => ( wellorderingAx
% 0.32/0.47                         => ( descrp
% 0.32/0.47                           => ( dsetconstrI
% 0.32/0.47                             => ( dsetconstrEL
% 0.32/0.47                               => ( dsetconstrER
% 0.32/0.47                                 => ( exuE1
% 0.32/0.47                                   => ( prop2setE
% 0.32/0.47                                     => ( emptysetE
% 0.32/0.47                                       => ( emptysetimpfalse
% 0.32/0.47                                         => ( notinemptyset
% 0.32/0.47                                           => ( exuE3e
% 0.32/0.47                                             => ( setext
% 0.32/0.47                                               => ( emptyI
% 0.32/0.47                                                 => ( noeltsimpempty
% 0.32/0.47                                                   => ( setbeta
% 0.32/0.47                                                     => ( nonemptyE1
% 0.32/0.47                                                       => ( nonemptyI
% 0.32/0.47                                                         => ( nonemptyI1
% 0.32/0.47                                                           => ( setadjoinIL
% 0.32/0.47                                                             => ( emptyinunitempty
% 0.32/0.47                                                               => ( setadjoinIR
% 0.32/0.47                                                                 => ( setadjoinE
% 0.32/0.47                                                                   => ( setadjoinOr
% 0.32/0.47                                                                     => ( setoftrueEq
% 0.32/0.47                                                                       => ( powersetI
% 0.32/0.47                                                                         => ( emptyinPowerset
% 0.32/0.47                                                                           => ( emptyInPowerset
% 0.32/0.47                                                                             => ( powersetE
% 0.32/0.47                                                                               => ( setunionI
% 0.32/0.47                                                                                 => ( setunionE
% 0.32/0.47                                                                                   => ( subPowSU
% 0.32/0.47                                                                                     => ( exuE2
% 0.32/0.47                                                                                       => ( nonemptyImpWitness
% 0.32/0.47                                                                                         => ( uniqinunit
% 0.32/0.47                                                                                           => ( notinsingleton
% 0.32/0.47                                                                                             => ( eqinunit
% 0.32/0.47                                                                                               => ( singletonsswitch
% 0.32/0.47                                                                                                 => ( upairsetE
% 0.32/0.47                                                                                                   => ( upairsetIL
% 0.32/0.47                                                                                                     => ( upairsetIR
% 0.32/0.47                                                                                                       => ( emptyE1
% 0.32/0.47                                                                                                         => ( vacuousDall
% 0.32/0.47                                                                                                           => ( quantDeMorgan1
% 0.32/0.47                                                                                                             => ( quantDeMorgan2
% 0.32/0.47                                                                                                               => ( quantDeMorgan3
% 0.32/0.47                                                                                                                 => ( quantDeMorgan4
% 0.32/0.47                                                                                                                   => ( prop2setI
% 0.32/0.47                                                                                                                     => ( prop2set2propI
% 0.32/0.47                                                                                                                       => ( notdexE
% 0.32/0.47                                                                                                                         => ( notdallE
% 0.32/0.47                                                                                                                           => ( exuI1
% 0.32/0.47                                                                                                                             => ( exuI3
% 0.32/0.47                                                                                                                               => ( exuI2
% 0.32/0.47                                                                                                                                 => ( inCongP
% 0.32/0.47                                                                                                                                   => ( in__Cong
% 0.32/0.47                                                                                                                                     => ( exuE3u
% 0.32/0.47                                                                                                                                       => ( exu__Cong
% 0.32/0.47                                                                                                                                         => ( emptyset = emptyset ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  %------------------------------------------------------------------------------
% 0.32/0.47  ------------------------
% 2.09/1.53  ---- Embedded in THF ---
% 2.09/1.53  %%% This output was generated by embedproblem, version 1.9.5 (library version 1.9).
% 2.09/1.53  %%% Generated on Tue Feb 24 12:26:46 EST 2026
% 2.09/1.53  %%% using '$$dhol' embedding, version 1.3.0.
% 2.09/1.53  %%% Logic specification used:
% 2.09/1.53  %%% thf(spec, logic, $$dhol).
% 2.09/1.53  
% 2.09/1.53  % SZS output start ListOfTHF for /export/starexec/sandbox2/tmp/tmp.xQ5qklvtR3/DTF2DTF29955.p
% See solution above
% 2.09/1.53  ------------------------
% 2.09/1.55  ---- Cleaned THF ---
% 2.09/1.55  thf(in_type,type,
% 2.09/1.55      in: $i > $i > $o ).
% 2.09/1.55  
% 2.09/1.55  thf(exu_type,type,
% 2.09/1.55      exu: ( $i > $o ) > $o ).
% 2.09/1.55  
% 2.09/1.55  thf(exu,definition,
% 2.09/1.55      ( exu
% 2.09/1.55      = ( ^ [Xphi: $i > $o] :
% 2.09/1.55          ? [Xx: $i] :
% 2.09/1.55            ( ( Xphi @ Xx )
% 2.09/1.55            & ! [Xy: $i] :
% 2.09/1.55                ( ( Xphi @ Xy )
% 2.09/1.55               => ( Xx = Xy ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(setextAx_type,type,
% 2.09/1.55      setextAx: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(setextAx,definition,
% 2.09/1.55      ( setextAx
% 2.09/1.55      = ( ! [A: $i,B: $i] :
% 2.09/1.55            ( ! [Xx: $i] :
% 2.09/1.55                ( ( in @ Xx @ A )
% 2.09/1.55              <=> ( in @ Xx @ B ) )
% 2.09/1.55           => ( A = B ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(emptyset_type,type,
% 2.09/1.55      emptyset: $i ).
% 2.09/1.55  
% 2.09/1.55  thf(emptysetAx_type,type,
% 2.09/1.55      emptysetAx: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(emptysetAx,definition,
% 2.09/1.55      ( emptysetAx
% 2.09/1.55      = ( ! [Xx: $i] :
% 2.09/1.55            ~ ( in @ Xx @ emptyset ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(setadjoin_type,type,
% 2.09/1.55      setadjoin: $i > $i > $i ).
% 2.09/1.55  
% 2.09/1.55  thf(setadjoinAx_type,type,
% 2.09/1.55      setadjoinAx: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(setadjoinAx,definition,
% 2.09/1.55      ( setadjoinAx
% 2.09/1.55      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 2.09/1.55            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 2.09/1.55          <=> ( ( Xy = Xx )
% 2.09/1.55              | ( in @ Xy @ A ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(powerset_type,type,
% 2.09/1.55      powerset: $i > $i ).
% 2.09/1.55  
% 2.09/1.55  thf(powersetAx_type,type,
% 2.09/1.55      powersetAx: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(powersetAx,definition,
% 2.09/1.55      ( powersetAx
% 2.09/1.55      = ( ! [A: $i,B: $i] :
% 2.09/1.55            ( ( in @ B @ ( powerset @ A ) )
% 2.09/1.55          <=> ! [Xx: $i] :
% 2.09/1.55                ( ( in @ Xx @ B )
% 2.09/1.55               => ( in @ Xx @ A ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(setunion_type,type,
% 2.09/1.55      setunion: $i > $i ).
% 2.09/1.55  
% 2.09/1.55  thf(setunionAx_type,type,
% 2.09/1.55      setunionAx: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(setunionAx,definition,
% 2.09/1.55      ( setunionAx
% 2.09/1.55      = ( ! [A: $i,Xx: $i] :
% 2.09/1.55            ( ( in @ Xx @ ( setunion @ A ) )
% 2.09/1.55          <=> ? [B: $i] :
% 2.09/1.55                ( ( in @ Xx @ B )
% 2.09/1.55                & ( in @ B @ A ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(omega_type,type,
% 2.09/1.55      omega: $i ).
% 2.09/1.55  
% 2.09/1.55  thf(omega0Ax_type,type,
% 2.09/1.55      omega0Ax: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(omega0Ax,definition,
% 2.09/1.55      ( omega0Ax
% 2.09/1.55      = ( in @ emptyset @ omega ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(omegaSAx_type,type,
% 2.09/1.55      omegaSAx: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(omegaSAx,definition,
% 2.09/1.55      ( omegaSAx
% 2.09/1.55      = ( ! [Xx: $i] :
% 2.09/1.55            ( ( in @ Xx @ omega )
% 2.09/1.55           => ( in @ ( setadjoin @ Xx @ Xx ) @ omega ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(omegaIndAx_type,type,
% 2.09/1.55      omegaIndAx: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(omegaIndAx,definition,
% 2.09/1.55      ( omegaIndAx
% 2.09/1.55      = ( ! [A: $i] :
% 2.09/1.55            ( ( ( in @ emptyset @ A )
% 2.09/1.55              & ! [Xx: $i] :
% 2.09/1.55                  ( ( ( in @ Xx @ omega )
% 2.09/1.55                    & ( in @ Xx @ A ) )
% 2.09/1.55                 => ( in @ ( setadjoin @ Xx @ Xx ) @ A ) ) )
% 2.09/1.55           => ! [Xx: $i] :
% 2.09/1.55                ( ( in @ Xx @ omega )
% 2.09/1.55               => ( in @ Xx @ A ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(replAx_type,type,
% 2.09/1.55      replAx: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(replAx,definition,
% 2.09/1.55      ( replAx
% 2.09/1.55      = ( ! [Xphi: $i > $i > $o,A: $i] :
% 2.09/1.55            ( ! [Xx: $i] :
% 2.09/1.55                ( ( in @ Xx @ A )
% 2.09/1.55               => ( exu
% 2.09/1.55                  @ ^ [Xy: $i] : ( Xphi @ Xx @ Xy ) ) )
% 2.09/1.55           => ? [B: $i] :
% 2.09/1.55              ! [Xx: $i] :
% 2.09/1.55                ( ( in @ Xx @ B )
% 2.09/1.55              <=> ? [Xy: $i] :
% 2.09/1.55                    ( ( in @ Xy @ A )
% 2.09/1.55                    & ( Xphi @ Xy @ Xx ) ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(foundationAx_type,type,
% 2.09/1.55      foundationAx: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(foundationAx,definition,
% 2.09/1.55      ( foundationAx
% 2.09/1.55      = ( ! [A: $i] :
% 2.09/1.55            ( ? [Xx: $i] : ( in @ Xx @ A )
% 2.09/1.55           => ? [B: $i] :
% 2.09/1.55                ( ( in @ B @ A )
% 2.09/1.55                & ~ ? [Xx: $i] :
% 2.09/1.55                      ( ( in @ Xx @ B )
% 2.09/1.55                      & ( in @ Xx @ A ) ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(wellorderingAx_type,type,
% 2.09/1.55      wellorderingAx: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(wellorderingAx,definition,
% 2.09/1.55      ( wellorderingAx
% 2.09/1.55      = ( ! [A: $i] :
% 2.09/1.55          ? [B: $i] :
% 2.09/1.55            ( ! [C: $i] :
% 2.09/1.55                ( ( in @ C @ B )
% 2.09/1.55               => ! [Xx: $i] :
% 2.09/1.55                    ( ( in @ Xx @ C )
% 2.09/1.55                   => ( in @ Xx @ A ) ) )
% 2.09/1.55            & ! [Xx: $i,Xy: $i] :
% 2.09/1.55                ( ( ( in @ Xx @ A )
% 2.09/1.55                  & ( in @ Xy @ A ) )
% 2.09/1.55               => ( ! [C: $i] :
% 2.09/1.55                      ( ( in @ C @ B )
% 2.09/1.55                     => ( ( in @ Xx @ C )
% 2.09/1.55                      <=> ( in @ Xy @ C ) ) )
% 2.09/1.55                 => ( Xx = Xy ) ) )
% 2.09/1.55            & ! [C: $i,D: $i] :
% 2.09/1.55                ( ( ( in @ C @ B )
% 2.09/1.55                  & ( in @ D @ B ) )
% 2.09/1.55               => ( ! [Xx: $i] :
% 2.09/1.55                      ( ( in @ Xx @ C )
% 2.09/1.55                     => ( in @ Xx @ D ) )
% 2.09/1.55                  | ! [Xx: $i] :
% 2.09/1.55                      ( ( in @ Xx @ D )
% 2.09/1.55                     => ( in @ Xx @ C ) ) ) )
% 2.09/1.55            & ! [C: $i] :
% 2.09/1.55                ( ( ! [Xx: $i] :
% 2.09/1.55                      ( ( in @ Xx @ C )
% 2.09/1.55                     => ( in @ Xx @ A ) )
% 2.09/1.55                  & ? [Xx: $i] : ( in @ Xx @ C ) )
% 2.09/1.55               => ? [D: $i,Xx: $i] :
% 2.09/1.55                    ( ( in @ D @ B )
% 2.09/1.55                    & ( in @ Xx @ C )
% 2.09/1.55                    & ~ ? [Xy: $i] :
% 2.09/1.55                          ( ( in @ Xy @ D )
% 2.09/1.55                          & ( in @ Xy @ C ) )
% 2.09/1.55                    & ! [E: $i] :
% 2.09/1.55                        ( ( in @ E @ B )
% 2.09/1.55                       => ( ! [Xy: $i] :
% 2.09/1.55                              ( ( in @ Xy @ E )
% 2.09/1.55                             => ( in @ Xy @ D ) )
% 2.09/1.55                          | ( in @ Xx @ E ) ) ) ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(descr_type,type,
% 2.09/1.55      descr: ( $i > $o ) > $i ).
% 2.09/1.55  
% 2.09/1.55  thf(descrp_type,type,
% 2.09/1.55      descrp: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(descrp,definition,
% 2.09/1.55      ( descrp
% 2.09/1.55      = ( ! [Xphi: $i > $o] :
% 2.09/1.55            ( ( exu
% 2.09/1.55              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 2.09/1.55           => ( Xphi
% 2.09/1.55              @ ( descr
% 2.09/1.55                @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(dsetconstr_type,type,
% 2.09/1.55      dsetconstr: $i > ( $i > $o ) > $i ).
% 2.09/1.55  
% 2.09/1.55  thf(dsetconstrI_type,type,
% 2.09/1.55      dsetconstrI: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(dsetconstrI,definition,
% 2.09/1.55      ( dsetconstrI
% 2.09/1.55      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 2.09/1.55            ( ( in @ Xx @ A )
% 2.09/1.55           => ( ( Xphi @ Xx )
% 2.09/1.55             => ( in @ Xx
% 2.09/1.55                @ ( dsetconstr @ A
% 2.09/1.55                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(dsetconstrEL_type,type,
% 2.09/1.55      dsetconstrEL: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(dsetconstrEL,definition,
% 2.09/1.55      ( dsetconstrEL
% 2.09/1.55      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 2.09/1.55            ( ( in @ Xx
% 2.09/1.55              @ ( dsetconstr @ A
% 2.09/1.55                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 2.09/1.55           => ( in @ Xx @ A ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(dsetconstrER_type,type,
% 2.09/1.55      dsetconstrER: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(dsetconstrER,definition,
% 2.09/1.55      ( dsetconstrER
% 2.09/1.55      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 2.09/1.55            ( ( in @ Xx
% 2.09/1.55              @ ( dsetconstr @ A
% 2.09/1.55                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 2.09/1.55           => ( Xphi @ Xx ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(exuE1_type,type,
% 2.09/1.55      exuE1: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(exuE1,definition,
% 2.09/1.55      ( exuE1
% 2.09/1.55      = ( ! [Xphi: $i > $o] :
% 2.09/1.55            ( ( exu
% 2.09/1.55              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 2.09/1.55           => ? [Xx: $i] :
% 2.09/1.55                ( ( Xphi @ Xx )
% 2.09/1.55                & ! [Xy: $i] :
% 2.09/1.55                    ( ( Xphi @ Xy )
% 2.09/1.55                   => ( Xx = Xy ) ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(prop2set_type,type,
% 2.09/1.55      prop2set: $o > $i ).
% 2.09/1.55  
% 2.09/1.55  thf(prop2setE_type,type,
% 2.09/1.55      prop2setE: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(prop2setE,definition,
% 2.09/1.55      ( prop2setE
% 2.09/1.55      = ( ! [Xphi: $o,Xx: $i] :
% 2.09/1.55            ( ( in @ Xx @ ( prop2set @ Xphi ) )
% 2.09/1.55           => Xphi ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(emptysetE_type,type,
% 2.09/1.55      emptysetE: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(emptysetE,definition,
% 2.09/1.55      ( emptysetE
% 2.09/1.55      = ( ! [Xx: $i] :
% 2.09/1.55            ( ( in @ Xx @ emptyset )
% 2.09/1.55           => ! [Xphi: $o] : Xphi ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(emptysetimpfalse_type,type,
% 2.09/1.55      emptysetimpfalse: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(emptysetimpfalse,definition,
% 2.09/1.55      ( emptysetimpfalse
% 2.09/1.55      = ( ! [Xx: $i] :
% 2.09/1.55            ( ( in @ Xx @ emptyset )
% 2.09/1.55           => $false ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(notinemptyset_type,type,
% 2.09/1.55      notinemptyset: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(notinemptyset,definition,
% 2.09/1.55      ( notinemptyset
% 2.09/1.55      = ( ! [Xx: $i] :
% 2.09/1.55            ~ ( in @ Xx @ emptyset ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(exuE3e_type,type,
% 2.09/1.55      exuE3e: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(exuE3e,definition,
% 2.09/1.55      ( exuE3e
% 2.09/1.55      = ( ! [Xphi: $i > $o] :
% 2.09/1.55            ( ( exu
% 2.09/1.55              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 2.09/1.55           => ? [Xx: $i] : ( Xphi @ Xx ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(setext_type,type,
% 2.09/1.55      setext: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(setext,definition,
% 2.09/1.55      ( setext
% 2.09/1.55      = ( ! [A: $i,B: $i] :
% 2.09/1.55            ( ! [Xx: $i] :
% 2.09/1.55                ( ( in @ Xx @ A )
% 2.09/1.55               => ( in @ Xx @ B ) )
% 2.09/1.55           => ( ! [Xx: $i] :
% 2.09/1.55                  ( ( in @ Xx @ B )
% 2.09/1.55                 => ( in @ Xx @ A ) )
% 2.09/1.55             => ( A = B ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(emptyI_type,type,
% 2.09/1.55      emptyI: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(emptyI,definition,
% 2.09/1.55      ( emptyI
% 2.09/1.55      = ( ! [A: $i] :
% 2.09/1.55            ( ! [Xx: $i] :
% 2.09/1.55                ~ ( in @ Xx @ A )
% 2.09/1.55           => ( A = emptyset ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(noeltsimpempty_type,type,
% 2.09/1.55      noeltsimpempty: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(noeltsimpempty,definition,
% 2.09/1.55      ( noeltsimpempty
% 2.09/1.55      = ( ! [A: $i] :
% 2.09/1.55            ( ! [Xx: $i] :
% 2.09/1.55                ~ ( in @ Xx @ A )
% 2.09/1.55           => ( A = emptyset ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(setbeta_type,type,
% 2.09/1.55      setbeta: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(setbeta,definition,
% 2.09/1.55      ( setbeta
% 2.09/1.55      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 2.09/1.55            ( ( in @ Xx @ A )
% 2.09/1.55           => ( ( in @ Xx
% 2.09/1.55                @ ( dsetconstr @ A
% 2.09/1.55                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 2.09/1.55            <=> ( Xphi @ Xx ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(nonempty_type,type,
% 2.09/1.55      nonempty: $i > $o ).
% 2.09/1.55  
% 2.09/1.55  thf(nonempty,definition,
% 2.09/1.55      ( nonempty
% 2.09/1.55      = ( ^ [Xx: $i] : ( Xx != emptyset ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(nonemptyE1_type,type,
% 2.09/1.55      nonemptyE1: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(nonemptyE1,definition,
% 2.09/1.55      ( nonemptyE1
% 2.09/1.55      = ( ! [A: $i] :
% 2.09/1.55            ( ( nonempty @ A )
% 2.09/1.55           => ? [Xx: $i] : ( in @ Xx @ A ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(nonemptyI_type,type,
% 2.09/1.55      nonemptyI: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(nonemptyI,definition,
% 2.09/1.55      ( nonemptyI
% 2.09/1.55      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 2.09/1.55            ( ( in @ Xx @ A )
% 2.09/1.55           => ( ( Xphi @ Xx )
% 2.09/1.55             => ( nonempty
% 2.09/1.55                @ ( dsetconstr @ A
% 2.09/1.55                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(nonemptyI1_type,type,
% 2.09/1.55      nonemptyI1: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(nonemptyI1,definition,
% 2.09/1.55      ( nonemptyI1
% 2.09/1.55      = ( ! [A: $i] :
% 2.09/1.55            ( ? [Xx: $i] : ( in @ Xx @ A )
% 2.09/1.55           => ( nonempty @ A ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(setadjoinIL_type,type,
% 2.09/1.55      setadjoinIL: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(setadjoinIL,definition,
% 2.09/1.55      ( setadjoinIL
% 2.09/1.55      = ( ! [Xx: $i,Xy: $i] : ( in @ Xx @ ( setadjoin @ Xx @ Xy ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(emptyinunitempty_type,type,
% 2.09/1.55      emptyinunitempty: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(emptyinunitempty,definition,
% 2.09/1.55      ( emptyinunitempty
% 2.09/1.55      = ( in @ emptyset @ ( setadjoin @ emptyset @ emptyset ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(setadjoinIR_type,type,
% 2.09/1.55      setadjoinIR: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(setadjoinIR,definition,
% 2.09/1.55      ( setadjoinIR
% 2.09/1.55      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 2.09/1.55            ( ( in @ Xy @ A )
% 2.09/1.55           => ( in @ Xy @ ( setadjoin @ Xx @ A ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(setadjoinE_type,type,
% 2.09/1.55      setadjoinE: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(setadjoinE,definition,
% 2.09/1.55      ( setadjoinE
% 2.09/1.55      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 2.09/1.55            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 2.09/1.55           => ! [Xphi: $o] :
% 2.09/1.55                ( ( ( Xy = Xx )
% 2.09/1.55                 => Xphi )
% 2.09/1.55               => ( ( ( in @ Xy @ A )
% 2.09/1.55                   => Xphi )
% 2.09/1.55                 => Xphi ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(setadjoinOr_type,type,
% 2.09/1.55      setadjoinOr: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(setadjoinOr,definition,
% 2.09/1.55      ( setadjoinOr
% 2.09/1.55      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 2.09/1.55            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 2.09/1.55           => ( ( Xy = Xx )
% 2.09/1.55              | ( in @ Xy @ A ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(setoftrueEq_type,type,
% 2.09/1.55      setoftrueEq: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(setoftrueEq,definition,
% 2.09/1.55      ( setoftrueEq
% 2.09/1.55      = ( ! [A: $i] :
% 2.09/1.55            ( ( dsetconstr @ A
% 2.09/1.55              @ ^ [Xx: $i] : $true )
% 2.09/1.55            = A ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(powersetI_type,type,
% 2.09/1.55      powersetI: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(powersetI,definition,
% 2.09/1.55      ( powersetI
% 2.09/1.55      = ( ! [A: $i,B: $i] :
% 2.09/1.55            ( ! [Xx: $i] :
% 2.09/1.55                ( ( in @ Xx @ B )
% 2.09/1.55               => ( in @ Xx @ A ) )
% 2.09/1.55           => ( in @ B @ ( powerset @ A ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(emptyinPowerset_type,type,
% 2.09/1.55      emptyinPowerset: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(emptyinPowerset,definition,
% 2.09/1.55      ( emptyinPowerset
% 2.09/1.55      = ( ! [A: $i] : ( in @ emptyset @ ( powerset @ A ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(emptyInPowerset_type,type,
% 2.09/1.55      emptyInPowerset: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(emptyInPowerset,definition,
% 2.09/1.55      ( emptyInPowerset
% 2.09/1.55      = ( ! [A: $i] : ( in @ emptyset @ ( powerset @ A ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(powersetE_type,type,
% 2.09/1.55      powersetE: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(powersetE,definition,
% 2.09/1.55      ( powersetE
% 2.09/1.55      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.09/1.55            ( ( in @ B @ ( powerset @ A ) )
% 2.09/1.55           => ( ( in @ Xx @ B )
% 2.09/1.55             => ( in @ Xx @ A ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(setunionI_type,type,
% 2.09/1.55      setunionI: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(setunionI,definition,
% 2.09/1.55      ( setunionI
% 2.09/1.55      = ( ! [A: $i,Xx: $i,B: $i] :
% 2.09/1.55            ( ( in @ Xx @ B )
% 2.09/1.55           => ( ( in @ B @ A )
% 2.09/1.55             => ( in @ Xx @ ( setunion @ A ) ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(setunionE_type,type,
% 2.09/1.55      setunionE: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(setunionE,definition,
% 2.09/1.55      ( setunionE
% 2.09/1.55      = ( ! [A: $i,Xx: $i] :
% 2.09/1.55            ( ( in @ Xx @ ( setunion @ A ) )
% 2.09/1.55           => ! [Xphi: $o] :
% 2.09/1.55                ( ! [B: $i] :
% 2.09/1.55                    ( ( in @ Xx @ B )
% 2.09/1.55                   => ( ( in @ B @ A )
% 2.09/1.55                     => Xphi ) )
% 2.09/1.55               => Xphi ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(subPowSU_type,type,
% 2.09/1.55      subPowSU: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(subPowSU,definition,
% 2.09/1.55      ( subPowSU
% 2.09/1.55      = ( ! [A: $i,Xx: $i] :
% 2.09/1.55            ( ( in @ Xx @ A )
% 2.09/1.55           => ( in @ Xx @ ( powerset @ ( setunion @ A ) ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(exuE2_type,type,
% 2.09/1.55      exuE2: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(exuE2,definition,
% 2.09/1.55      ( exuE2
% 2.09/1.55      = ( ! [Xphi: $i > $o] :
% 2.09/1.55            ( ( exu
% 2.09/1.55              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 2.09/1.55           => ? [Xx: $i] :
% 2.09/1.55              ! [Xy: $i] :
% 2.09/1.55                ( ( Xphi @ Xy )
% 2.09/1.55              <=> ( Xy = Xx ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(nonemptyImpWitness_type,type,
% 2.09/1.55      nonemptyImpWitness: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(nonemptyImpWitness,definition,
% 2.09/1.55      ( nonemptyImpWitness
% 2.09/1.55      = ( ! [A: $i] :
% 2.09/1.55            ( ( nonempty @ A )
% 2.09/1.55           => ? [Xx: $i] :
% 2.09/1.55                ( ( in @ Xx @ A )
% 2.09/1.55                & $true ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(uniqinunit_type,type,
% 2.09/1.55      uniqinunit: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(uniqinunit,definition,
% 2.09/1.55      ( uniqinunit
% 2.09/1.55      = ( ! [Xx: $i,Xy: $i] :
% 2.09/1.55            ( ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) )
% 2.09/1.55           => ( Xx = Xy ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(notinsingleton_type,type,
% 2.09/1.55      notinsingleton: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(notinsingleton,definition,
% 2.09/1.55      ( notinsingleton
% 2.09/1.55      = ( ! [Xx: $i,Xy: $i] :
% 2.09/1.55            ( ( Xx != Xy )
% 2.09/1.55           => ~ ( in @ Xy @ ( setadjoin @ Xx @ emptyset ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(eqinunit_type,type,
% 2.09/1.55      eqinunit: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(eqinunit,definition,
% 2.09/1.55      ( eqinunit
% 2.09/1.55      = ( ! [Xx: $i,Xy: $i] :
% 2.09/1.55            ( ( Xx = Xy )
% 2.09/1.55           => ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(singletonsswitch_type,type,
% 2.09/1.55      singletonsswitch: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(singletonsswitch,definition,
% 2.09/1.55      ( singletonsswitch
% 2.09/1.55      = ( ! [Xx: $i,Xy: $i] :
% 2.09/1.55            ( ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) )
% 2.09/1.55           => ( in @ Xy @ ( setadjoin @ Xx @ emptyset ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(upairsetE_type,type,
% 2.09/1.55      upairsetE: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(upairsetE,definition,
% 2.09/1.55      ( upairsetE
% 2.09/1.55      = ( ! [Xx: $i,Xy: $i,Xz: $i] :
% 2.09/1.55            ( ( in @ Xz @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) )
% 2.09/1.55           => ( ( Xz = Xx )
% 2.09/1.55              | ( Xz = Xy ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(upairsetIL_type,type,
% 2.09/1.55      upairsetIL: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(upairsetIL,definition,
% 2.09/1.55      ( upairsetIL
% 2.09/1.55      = ( ! [Xx: $i,Xy: $i] : ( in @ Xx @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(upairsetIR_type,type,
% 2.09/1.55      upairsetIR: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(upairsetIR,definition,
% 2.09/1.55      ( upairsetIR
% 2.09/1.55      = ( ! [Xx: $i,Xy: $i] : ( in @ Xy @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(emptyE1_type,type,
% 2.09/1.55      emptyE1: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(emptyE1,definition,
% 2.09/1.55      ( emptyE1
% 2.09/1.55      = ( ! [A: $i,Xphi: $i > $o] :
% 2.09/1.55            ( ? [Xx: $i] :
% 2.09/1.55                ( ( in @ Xx @ A )
% 2.09/1.55                & ( Xphi @ Xx ) )
% 2.09/1.55           => ( ( ( dsetconstr @ A
% 2.09/1.55                  @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 2.09/1.55                = emptyset )
% 2.09/1.55             => $false ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(vacuousDall_type,type,
% 2.09/1.55      vacuousDall: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(vacuousDall,definition,
% 2.09/1.55      ( vacuousDall
% 2.09/1.55      = ( ! [Xphi: $i > $o,Xx: $i] :
% 2.09/1.55            ( ( in @ Xx @ emptyset )
% 2.09/1.55           => ( Xphi @ Xx ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(quantDeMorgan1_type,type,
% 2.09/1.55      quantDeMorgan1: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(quantDeMorgan1,definition,
% 2.09/1.55      ( quantDeMorgan1
% 2.09/1.55      = ( ! [A: $i,Xphi: $i > $o] :
% 2.09/1.55            ( ~ ! [Xx: $i] :
% 2.09/1.55                  ( ( in @ Xx @ A )
% 2.09/1.55                 => ( Xphi @ Xx ) )
% 2.09/1.55           => ? [Xx: $i] :
% 2.09/1.55                ( ( in @ Xx @ A )
% 2.09/1.55                & ~ ( Xphi @ Xx ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(quantDeMorgan2_type,type,
% 2.09/1.55      quantDeMorgan2: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(quantDeMorgan2,definition,
% 2.09/1.55      ( quantDeMorgan2
% 2.09/1.55      = ( ! [A: $i,Xphi: $i > $o] :
% 2.09/1.55            ( ! [Xx: $i] :
% 2.09/1.55                ( ( in @ Xx @ A )
% 2.09/1.55               => ~ ( Xphi @ Xx ) )
% 2.09/1.55           => ~ ? [Xx: $i] :
% 2.09/1.55                  ( ( in @ Xx @ A )
% 2.09/1.55                  & ( Xphi @ Xx ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(quantDeMorgan3_type,type,
% 2.09/1.55      quantDeMorgan3: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(quantDeMorgan3,definition,
% 2.09/1.55      ( quantDeMorgan3
% 2.09/1.55      = ( ! [A: $i,Xphi: $i > $o] :
% 2.09/1.55            ( ~ ? [Xx: $i] :
% 2.09/1.55                  ( ( in @ Xx @ A )
% 2.09/1.55                  & ( Xphi @ Xx ) )
% 2.09/1.55           => ! [Xx: $i] :
% 2.09/1.55                ( ( in @ Xx @ A )
% 2.09/1.55               => ~ ( Xphi @ Xx ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(quantDeMorgan4_type,type,
% 2.09/1.55      quantDeMorgan4: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(quantDeMorgan4,definition,
% 2.09/1.55      ( quantDeMorgan4
% 2.09/1.55      = ( ! [A: $i,Xphi: $i > $o] :
% 2.09/1.55            ( ? [Xx: $i] :
% 2.09/1.55                ( ( in @ Xx @ A )
% 2.09/1.55                & ~ ( Xphi @ Xx ) )
% 2.09/1.55           => ~ ! [Xx: $i] :
% 2.09/1.55                  ( ( in @ Xx @ A )
% 2.09/1.55                 => ( Xphi @ Xx ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(prop2setI_type,type,
% 2.09/1.55      prop2setI: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(prop2setI,definition,
% 2.09/1.55      ( prop2setI
% 2.09/1.55      = ( ! [Xphi: $o] :
% 2.09/1.55            ( Xphi
% 2.09/1.55           => ( in @ emptyset @ ( prop2set @ Xphi ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(set2prop_type,type,
% 2.09/1.55      set2prop: $i > $o ).
% 2.09/1.55  
% 2.09/1.55  thf(prop2set2propI_type,type,
% 2.09/1.55      prop2set2propI: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(prop2set2propI,definition,
% 2.09/1.55      ( prop2set2propI
% 2.09/1.55      = ( ! [Xphi: $o] :
% 2.09/1.55            ( Xphi
% 2.09/1.55           => ( set2prop @ ( prop2set @ Xphi ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(notdexE_type,type,
% 2.09/1.55      notdexE: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(notdexE,definition,
% 2.09/1.55      ( notdexE
% 2.09/1.55      = ( ! [A: $i,Xphi: $i > $o] :
% 2.09/1.55            ( ~ ? [Xx: $i] :
% 2.09/1.55                  ( ( in @ Xx @ A )
% 2.09/1.55                  & ( Xphi @ Xx ) )
% 2.09/1.55           => ! [Xx: $i] :
% 2.09/1.55                ( ( in @ Xx @ A )
% 2.09/1.55               => ~ ( Xphi @ Xx ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(notdallE_type,type,
% 2.09/1.55      notdallE: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(notdallE,definition,
% 2.09/1.55      ( notdallE
% 2.09/1.55      = ( ! [A: $i,Xphi: $i > $o] :
% 2.09/1.55            ( ~ ! [Xx: $i] :
% 2.09/1.55                  ( ( in @ Xx @ A )
% 2.09/1.55                 => ( Xphi @ Xx ) )
% 2.09/1.55           => ? [Xx: $i] :
% 2.09/1.55                ( ( in @ Xx @ A )
% 2.09/1.55                & ~ ( Xphi @ Xx ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(exuI1_type,type,
% 2.09/1.55      exuI1: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(exuI1,definition,
% 2.09/1.55      ( exuI1
% 2.09/1.55      = ( ! [Xphi: $i > $o] :
% 2.09/1.55            ( ? [Xx: $i] :
% 2.09/1.55                ( ( Xphi @ Xx )
% 2.09/1.55                & ! [Xy: $i] :
% 2.09/1.55                    ( ( Xphi @ Xy )
% 2.09/1.55                   => ( Xx = Xy ) ) )
% 2.09/1.55           => ( exu
% 2.09/1.55              @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(exuI3_type,type,
% 2.09/1.55      exuI3: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(exuI3,definition,
% 2.09/1.55      ( exuI3
% 2.09/1.55      = ( ! [Xphi: $i > $o] :
% 2.09/1.55            ( ? [Xx: $i] : ( Xphi @ Xx )
% 2.09/1.55           => ( ! [Xx: $i,Xy: $i] :
% 2.09/1.55                  ( ( Xphi @ Xx )
% 2.09/1.55                 => ( ( Xphi @ Xy )
% 2.09/1.55                   => ( Xx = Xy ) ) )
% 2.09/1.55             => ( exu
% 2.09/1.55                @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(exuI2_type,type,
% 2.09/1.55      exuI2: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(exuI2,definition,
% 2.09/1.55      ( exuI2
% 2.09/1.55      = ( ! [Xphi: $i > $o] :
% 2.09/1.55            ( ? [Xx: $i] :
% 2.09/1.55              ! [Xy: $i] :
% 2.09/1.55                ( ( Xphi @ Xy )
% 2.09/1.55              <=> ( Xy = Xx ) )
% 2.09/1.55           => ( exu
% 2.09/1.55              @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(inCongP_type,type,
% 2.09/1.55      inCongP: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(inCongP,definition,
% 2.09/1.55      ( inCongP
% 2.09/1.55      = ( ! [A: $i,B: $i] :
% 2.09/1.55            ( ( A = B )
% 2.09/1.55           => ! [Xx: $i,Xy: $i] :
% 2.09/1.55                ( ( Xx = Xy )
% 2.09/1.55               => ( ( in @ Xx @ A )
% 2.09/1.55                 => ( in @ Xy @ B ) ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(in__Cong_type,type,
% 2.09/1.55      in__Cong: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(in__Cong,definition,
% 2.09/1.55      ( in__Cong
% 2.09/1.55      = ( ! [A: $i,B: $i] :
% 2.09/1.55            ( ( A = B )
% 2.09/1.55           => ! [Xx: $i,Xy: $i] :
% 2.09/1.55                ( ( Xx = Xy )
% 2.09/1.55               => ( ( in @ Xx @ A )
% 2.09/1.55                <=> ( in @ Xy @ B ) ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(exuE3u_type,type,
% 2.09/1.55      exuE3u: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(exuE3u,definition,
% 2.09/1.55      ( exuE3u
% 2.09/1.55      = ( ! [Xphi: $i > $o] :
% 2.09/1.55            ( ( exu
% 2.09/1.55              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 2.09/1.55           => ! [Xx: $i,Xy: $i] :
% 2.09/1.55                ( ( Xphi @ Xx )
% 2.09/1.55               => ( ( Xphi @ Xy )
% 2.09/1.55                 => ( Xx = Xy ) ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(exu__Cong_type,type,
% 2.09/1.55      exu__Cong: $o ).
% 2.09/1.55  
% 2.09/1.55  thf(exu__Cong,definition,
% 2.09/1.55      ( exu__Cong
% 2.09/1.55      = ( ! [Xphi: $i > $o,Xpsi: $i > $o] :
% 2.09/1.55            ( ! [Xx: $i,Xy: $i] :
% 2.09/1.55                ( ( Xx = Xy )
% 2.09/1.55               => ( ( Xphi @ Xx )
% 2.09/1.55                <=> ( Xpsi @ Xy ) ) )
% 2.09/1.55           => ( ( exu
% 2.09/1.55                @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 2.09/1.55            <=> ( exu
% 2.09/1.55                @ ^ [Xx: $i] : ( Xpsi @ Xx ) ) ) ) ) ) ).
% 2.09/1.55  
% 2.09/1.55  thf(emptyset__Cong,conjecture,
% 2.09/1.55      ( setextAx
% 2.09/1.55     => ( emptysetAx
% 2.09/1.55       => ( setadjoinAx
% 2.09/1.55         => ( powersetAx
% 2.09/1.55           => ( setunionAx
% 2.09/1.55             => ( omega0Ax
% 2.09/1.55               => ( omegaSAx
% 2.09/1.55                 => ( omegaIndAx
% 2.09/1.55                   => ( replAx
% 2.09/1.55                     => ( foundationAx
% 2.09/1.55                       => ( wellorderingAx
% 2.09/1.55                         => ( descrp
% 2.09/1.55                           => ( dsetconstrI
% 2.09/1.55                             => ( dsetconstrEL
% 2.09/1.55                               => ( dsetconstrER
% 2.09/1.55                                 => ( exuE1
% 2.09/1.55                                   => ( prop2setE
% 2.09/1.55                                     => ( emptysetE
% 2.09/1.55                                       => ( emptysetimpfalse
% 2.09/1.55                                         => ( notinemptyset
% 2.09/1.55                                           => ( exuE3e
% 2.09/1.55                                             => ( setext
% 2.09/1.55                                               => ( emptyI
% 2.09/1.55                                                 => ( noeltsimpempty
% 2.09/1.55                                                   => ( setbeta
% 2.09/1.55                                                     => ( nonemptyE1
% 2.09/1.55                                                       => ( nonemptyI
% 2.09/1.55                                                         => ( nonemptyI1
% 2.09/1.55                                                           => ( setadjoinIL
% 2.09/1.55                                                             => ( emptyinunitempty
% 2.09/1.55                                                               => ( setadjoinIR
% 2.09/1.55                                                                 => ( setadjoinE
% 2.09/1.55                                                                   => ( setadjoinOr
% 2.09/1.55                                                                     => ( setoftrueEq
% 2.09/1.55                                                                       => ( powersetI
% 2.09/1.55                                                                         => ( emptyinPowerset
% 2.09/1.55                                                                           => ( emptyInPowerset
% 2.09/1.55                                                                             => ( powersetE
% 2.09/1.55                                                                               => ( setunionI
% 2.09/1.55                                                                                 => ( setunionE
% 2.09/1.55                                                                                   => ( subPowSU
% 2.09/1.55                                                                                     => ( exuE2
% 2.09/1.55                                                                                       => ( nonemptyImpWitness
% 2.09/1.55                                                                                         => ( uniqinunit
% 2.09/1.55                                                                                           => ( notinsingleton
% 2.09/1.55                                                                                             => ( eqinunit
% 2.09/1.55                                                                                               => ( singletonsswitch
% 2.09/1.55                                                                                                 => ( upairsetE
% 2.09/1.55                                                                                                   => ( upairsetIL
% 2.09/1.55                                                                                                     => ( upairsetIR
% 2.09/1.55                                                                                                       => ( emptyE1
% 2.09/1.55                                                                                                         => ( vacuousDall
% 2.09/1.55                                                                                                           => ( quantDeMorgan1
% 2.09/1.55                                                                                                             => ( quantDeMorgan2
% 2.09/1.55                                                                                                               => ( quantDeMorgan3
% 2.09/1.55                                                                                                                 => ( quantDeMorgan4
% 2.09/1.55                                                                                                                   => ( prop2setI
% 2.09/1.55                                                                                                                     => ( prop2set2propI
% 2.09/1.55                                                                                                                       => ( notdexE
% 2.09/1.55                                                                                                                         => ( notdallE
% 2.09/1.55                                                                                                                           => ( exuI1
% 2.09/1.55                                                                                                                             => ( exuI3
% 2.09/1.55                                                                                                                               => ( exuI2
% 2.09/1.55                                                                                                                                 => ( inCongP
% 2.09/1.55                                                                                                                                   => ( in__Cong
% 2.09/1.55                                                                                                                                     => ( exuE3u
% 2.09/1.55                                                                                                                                       => ( exu__Cong
% 2.09/1.55                                                                                                                                         => ( emptyset = emptyset ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ).
% 2.09/1.55  ------------------------
% 2.09/1.58  % (30054)lrs+1002_1:8_bd=off:fd=off:hud=10:tnu=1:i=183:si=on:rtra=on_0 on DTF2THF_29955 for (2999ds/183Mi)
% 2.09/1.58  % (30058)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_29955 for (2999ds/2Mi)
% 2.09/1.58  % (30056)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_29955 for (2999ds/27Mi)
% 2.09/1.58  % (30059)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_29955 for (2999ds/275Mi)
% 2.09/1.58  % (30057)lrs+10_1:1_au=on:inj=on:i=2:si=on:rtra=on_0 on DTF2THF_29955 for (2999ds/2Mi)
% 2.09/1.58  % (30055)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_29955 for (2999ds/4Mi)
% 2.09/1.58  % (30060)lrs+1004_1:128_cond=on:e2e=on:sp=weighted_frequency:i=18:si=on:rtra=on_0 on DTF2THF_29955 for (2999ds/18Mi)
% 2.09/1.58  % (30057)Instruction limit reached!
% 2.09/1.58  % (30057)------------------------------
% 2.09/1.58  % (30057)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.09/1.58  % (30057)Termination reason: Unknown
% 2.09/1.58  % (30058)Instruction limit reached!
% 2.09/1.58  % (30058)------------------------------
% 2.09/1.58  % (30058)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.09/1.58  % (30057)Termination phase: shuffling
% 2.09/1.58  
% 2.09/1.58  % (30057)Memory used [KB]: 1151
% 2.09/1.58  % (30057)Time elapsed: 0.003 s
% 2.09/1.58  % (30057)Instructions burned: 3 (million)
% 2.09/1.58  % (30057)------------------------------
% 2.09/1.58  % (30057)------------------------------
% 2.09/1.58  % (30058)Termination reason: Unknown
% 2.09/1.58  % (30058)Termination phase: shuffling
% 2.09/1.58  
% 2.09/1.58  % (30058)Memory used [KB]: 1151
% 2.09/1.58  % (30058)Time elapsed: 0.003 s
% 2.09/1.58  % (30058)Instructions burned: 3 (million)
% 2.09/1.58  % (30058)------------------------------
% 2.09/1.58  % (30058)------------------------------
% 2.09/1.58  % (30055)Instruction limit reached!
% 2.09/1.58  % (30055)------------------------------
% 2.09/1.58  % (30055)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.09/1.58  % (30055)Termination reason: Unknown
% 2.09/1.58  % (30055)Termination phase: shuffling
% 2.09/1.58  
% 2.09/1.58  % (30055)Memory used [KB]: 1151
% 2.09/1.58  % (30055)Time elapsed: 0.004 s
% 2.09/1.58  % (30055)Instructions burned: 5 (million)
% 2.09/1.58  % (30055)------------------------------
% 2.09/1.58  % (30055)------------------------------
% 2.09/1.58  % (30060)Instruction limit reached!
% 2.09/1.58  % (30060)------------------------------
% 2.09/1.58  % (30060)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.09/1.58  % (30060)Termination reason: Unknown
% 2.09/1.58  % (30060)Termination phase: Preprocessing 3
% 2.09/1.58  
% 2.09/1.58  % (30060)Memory used [KB]: 1663
% 2.09/1.58  % (30060)Time elapsed: 0.011 s
% 2.09/1.59  % (30060)Instructions burned: 19 (million)
% 2.09/1.59  % (30060)------------------------------
% 2.09/1.59  % (30060)------------------------------
% 2.09/1.59  % (30056)Instruction limit reached!
% 2.09/1.59  % (30056)------------------------------
% 2.09/1.59  % (30056)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.09/1.59  % (30056)Termination reason: Unknown
% 2.09/1.59  % (30056)Termination phase: Property scanning
% 2.09/1.59  
% 2.09/1.59  % (30056)Memory used [KB]: 1407
% 2.09/1.59  % (30056)Time elapsed: 0.014 s
% 2.09/1.59  % (30056)Instructions burned: 27 (million)
% 2.09/1.59  % (30056)------------------------------
% 2.09/1.59  % (30056)------------------------------
% 2.09/1.59  % (30054)First to succeed.
% 2.09/1.59  % (30061)lrs+10_1:1_bet=on:cnfonf=off:fd=off:hud=5:inj=on:i=3:si=on:rtra=on_0 on DTF2THF_29955 for (2999ds/3Mi)
% 2.09/1.59  % (30062)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_29955 for (2999ds/37Mi)
% 2.09/1.59  % (30063)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_29955 for (2999ds/15Mi)
% 2.09/1.59  % (30054)Refutation found. Thanks to Tanya!
% 2.09/1.59  % SZS status Theorem for DTF2THF_29955
% 2.09/1.59  % SZS output start Proof for DTF2THF_29955
% 2.09/1.59  thf(func_def_0, type, in: $i > $i > $o).
% 2.09/1.59  thf(func_def_1, type, exu: ($i > $o) > $o).
% 2.09/1.59  thf(func_def_6, type, setadjoin: $i > $i > $i).
% 2.09/1.59  thf(func_def_8, type, powerset: $i > $i).
% 2.09/1.59  thf(func_def_10, type, setunion: $i > $i).
% 2.09/1.59  thf(func_def_19, type, descr: ($i > $o) > $i).
% 2.09/1.59  thf(func_def_21, type, dsetconstr: $i > ($i > $o) > $i).
% 2.09/1.59  thf(func_def_26, type, prop2set: $o > $i).
% 2.09/1.59  thf(func_def_36, type, nonempty: $i > $o).
% 2.09/1.59  thf(func_def_69, type, set2prop: $i > $o).
% 2.09/1.59  thf(func_def_97, type, sK1: $i > $i).
% 2.09/1.59  thf(func_def_98, type, sK2: ($i > $o) > $i).
% 2.09/1.59  thf(func_def_99, type, sK3: ($i > $o) > $i > $i).
% 2.09/1.59  thf(func_def_100, type, sK4: ($i > $o) > $i > $i).
% 2.09/1.59  thf(f479,plain,(
% 2.09/1.59    $false),
% 2.09/1.59    inference(trivial_inequality_removal,[status(thm)],[f297])).
% 2.09/1.59  thf(f297,plain,(
% 2.09/1.59    (emptyset != emptyset)),
% 2.09/1.59    inference(cnf_transformation,[status(thm)],[f210])).
% 2.09/1.59  thf(f210,plain,(
% 2.09/1.59    (setunionAx = $true) & (vacuousDall = $true) & (exuE3e = $true) & (powersetI = $true) & (setbeta = $true) & (emptyInPowerset = $true) & (nonemptyE1 = $true) & (quantDeMorgan3 = $true) & (setextAx = $true) & (quantDeMorgan4 = $true) & (singletonsswitch = $true) & (setadjoinE = $true) & (notinemptyset = $true) & (emptysetE = $true) & (exuE2 = $true) & (setadjoinIR = $true) & (setadjoinIL = $true) & (exuI3 = $true) & (emptyset != emptyset) & (powersetAx = $true) & (noeltsimpempty = $true) & (omegaIndAx = $true) & (foundationAx = $true) & (descrp = $true) & (nonemptyI1 = $true) & (eqinunit = $true) & (exuI1 = $true) & (quantDeMorgan1 = $true) & (emptyI = $true) & (setadjoinOr = $true) & (setunionE = $true) & (dsetconstrEL = $true) & (dsetconstrI = $true) & (omega0Ax = $true) & (replAx = $true) & (quantDeMorgan2 = $true) & (inCongP = $true) & (upairsetE = $true) & (subPowSU = $true) & (prop2setI = $true) & (notdallE = $true) & (powersetE = $true) & (upairsetIL = $true) & (emptysetimpfalse = $true) & (emptyinPowerset = $true) & (emptyinunitempty = $true) & (setunionI = $true) & (in__Cong = $true) & (setoftrueEq = $true) & (setext = $true) & (omegaSAx = $true) & (exuI2 = $true) & (nonemptyI = $true) & (exuE3u = $true) & (notdexE = $true) & (emptyE1 = $true) & (wellorderingAx = $true) & (nonemptyImpWitness = $true) & (setadjoinAx = $true) & (emptysetAx = $true) & (exu__Cong = $true) & (uniqinunit = $true) & (exuE1 = $true) & (prop2setE = $true) & (dsetconstrER = $true) & (upairsetIR = $true) & (prop2set2propI = $true) & (notinsingleton = $true)),
% 2.09/1.59    inference(flattening,[status(thm)],[f209])).
% 2.09/1.59  thf(f209,plain,(
% 2.09/1.59    (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((emptyset != emptyset) & (exu__Cong = $true)) & (exuE3u = $true)) & (in__Cong = $true)) & (inCongP = $true)) & (exuI2 = $true)) & (exuI3 = $true)) & (exuI1 = $true)) & (notdallE = $true)) & (notdexE = $true)) & (prop2set2propI = $true)) & (prop2setI = $true)) & (quantDeMorgan4 = $true)) & (quantDeMorgan3 = $true)) & (quantDeMorgan2 = $true)) & (quantDeMorgan1 = $true)) & (vacuousDall = $true)) & (emptyE1 = $true)) & (upairsetIR = $true)) & (upairsetIL = $true)) & (upairsetE = $true)) & (singletonsswitch = $true)) & (eqinunit = $true)) & (notinsingleton = $true)) & (uniqinunit = $true)) & (nonemptyImpWitness = $true)) & (exuE2 = $true)) & (subPowSU = $true)) & (setunionE = $true)) & (setunionI = $true)) & (powersetE = $true)) & (emptyInPowerset = $true)) & (emptyinPowerset = $true)) & (powersetI = $true)) & (setoftrueEq = $true)) & (setadjoinOr = $true)) & (setadjoinE = $true)) & (setadjoinIR = $true)) & (emptyinunitempty = $true)) & (setadjoinIL = $true)) & (nonemptyI1 = $true)) & (nonemptyI = $true)) & (nonemptyE1 = $true)) & (setbeta = $true)) & (noeltsimpempty = $true)) & (emptyI = $true)) & (setext = $true)) & (exuE3e = $true)) & (notinemptyset = $true)) & (emptysetimpfalse = $true)) & (emptysetE = $true)) & (prop2setE = $true)) & (exuE1 = $true)) & (dsetconstrER = $true)) & (dsetconstrEL = $true)) & (dsetconstrI = $true)) & (descrp = $true)) & (wellorderingAx = $true)) & (foundationAx = $true)) & (replAx = $true)) & (omegaIndAx = $true)) & (omegaSAx = $true)) & (omega0Ax = $true)) & (setunionAx = $true)) & (powersetAx = $true)) & (setadjoinAx = $true)) & (emptysetAx = $true)) & (setextAx = $true)),
% 2.09/1.59    inference(ennf_transformation,[status(thm)],[f132])).
% 2.09/1.59  thf(f132,plain,(
% 2.09/1.59    ~((setextAx = $true) => ((emptysetAx = $true) => ((setadjoinAx = $true) => ((powersetAx = $true) => ((setunionAx = $true) => ((omega0Ax = $true) => ((omegaSAx = $true) => ((omegaIndAx = $true) => ((replAx = $true) => ((foundationAx = $true) => ((wellorderingAx = $true) => ((descrp = $true) => ((dsetconstrI = $true) => ((dsetconstrEL = $true) => ((dsetconstrER = $true) => ((exuE1 = $true) => ((prop2setE = $true) => ((emptysetE = $true) => ((emptysetimpfalse = $true) => ((notinemptyset = $true) => ((exuE3e = $true) => ((setext = $true) => ((emptyI = $true) => ((noeltsimpempty = $true) => ((setbeta = $true) => ((nonemptyE1 = $true) => ((nonemptyI = $true) => ((nonemptyI1 = $true) => ((setadjoinIL = $true) => ((emptyinunitempty = $true) => ((setadjoinIR = $true) => ((setadjoinE = $true) => ((setadjoinOr = $true) => ((setoftrueEq = $true) => ((powersetI = $true) => ((emptyinPowerset = $true) => ((emptyInPowerset = $true) => ((powersetE = $true) => ((setunionI = $true) => ((setunionE = $true) => ((subPowSU = $true) => ((exuE2 = $true) => ((nonemptyImpWitness = $true) => ((uniqinunit = $true) => ((notinsingleton = $true) => ((eqinunit = $true) => ((singletonsswitch = $true) => ((upairsetE = $true) => ((upairsetIL = $true) => ((upairsetIR = $true) => ((emptyE1 = $true) => ((vacuousDall = $true) => ((quantDeMorgan1 = $true) => ((quantDeMorgan2 = $true) => ((quantDeMorgan3 = $true) => ((quantDeMorgan4 = $true) => ((prop2setI = $true) => ((prop2set2propI = $true) => ((notdexE = $true) => ((notdallE = $true) => ((exuI1 = $true) => ((exuI3 = $true) => ((exuI2 = $true) => ((inCongP = $true) => ((in__Cong = $true) => ((exuE3u = $true) => ((exu__Cong = $true) => (emptyset = emptyset))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))),
% 2.09/1.59    inference(fool_elimination,[status(thm)],[f131])).
% 2.09/1.59  thf(f131,plain,(
% 2.09/1.59    ~(setextAx => (emptysetAx => (setadjoinAx => (powersetAx => (setunionAx => (omega0Ax => (omegaSAx => (omegaIndAx => (replAx => (foundationAx => (wellorderingAx => (descrp => (dsetconstrI => (dsetconstrEL => (dsetconstrER => (exuE1 => (prop2setE => (emptysetE => (emptysetimpfalse => (notinemptyset => (exuE3e => (setext => (emptyI => (noeltsimpempty => (setbeta => (nonemptyE1 => (nonemptyI => (nonemptyI1 => (setadjoinIL => (emptyinunitempty => (setadjoinIR => (setadjoinE => (setadjoinOr => (setoftrueEq => (powersetI => (emptyinPowerset => (emptyInPowerset => (powersetE => (setunionI => (setunionE => (subPowSU => (exuE2 => (nonemptyImpWitness => (uniqinunit => (notinsingleton => (eqinunit => (singletonsswitch => (upairsetE => (upairsetIL => (upairsetIR => (emptyE1 => (vacuousDall => (quantDeMorgan1 => (quantDeMorgan2 => (quantDeMorgan3 => (quantDeMorgan4 => (prop2setI => (prop2set2propI => (notdexE => (notdallE => (exuI1 => (exuI3 => (exuI2 => (inCongP => (in__Cong => (exuE3u => (exu__Cong => (emptyset = emptyset))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))),
% 2.09/1.59    inference(rectify,[status(thm)],[f71])).
% 2.09/1.59  thf(f71,negated_conjecture,(
% 2.09/1.59    ~(setextAx => (emptysetAx => (setadjoinAx => (powersetAx => (setunionAx => (omega0Ax => (omegaSAx => (omegaIndAx => (replAx => (foundationAx => (wellorderingAx => (descrp => (dsetconstrI => (dsetconstrEL => (dsetconstrER => (exuE1 => (prop2setE => (emptysetE => (emptysetimpfalse => (notinemptyset => (exuE3e => (setext => (emptyI => (noeltsimpempty => (setbeta => (nonemptyE1 => (nonemptyI => (nonemptyI1 => (setadjoinIL => (emptyinunitempty => (setadjoinIR => (setadjoinE => (setadjoinOr => (setoftrueEq => (powersetI => (emptyinPowerset => (emptyInPowerset => (powersetE => (setunionI => (setunionE => (subPowSU => (exuE2 => (nonemptyImpWitness => (uniqinunit => (notinsingleton => (eqinunit => (singletonsswitch => (upairsetE => (upairsetIL => (upairsetIR => (emptyE1 => (vacuousDall => (quantDeMorgan1 => (quantDeMorgan2 => (quantDeMorgan3 => (quantDeMorgan4 => (prop2setI => (prop2set2propI => (notdexE => (notdallE => (exuI1 => (exuI3 => (exuI2 => (inCongP => (in__Cong => (exuE3u => (exu__Cong => (emptyset = emptyset))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))),
% 2.09/1.59    inference(negated_conjecture,[status(cth)],[f70])).
% 2.09/1.59  thf(f70,conjecture,(
% 2.09/1.59    setextAx => (emptysetAx => (setadjoinAx => (powersetAx => (setunionAx => (omega0Ax => (omegaSAx => (omegaIndAx => (replAx => (foundationAx => (wellorderingAx => (descrp => (dsetconstrI => (dsetconstrEL => (dsetconstrER => (exuE1 => (prop2setE => (emptysetE => (emptysetimpfalse => (notinemptyset => (exuE3e => (setext => (emptyI => (noeltsimpempty => (setbeta => (nonemptyE1 => (nonemptyI => (nonemptyI1 => (setadjoinIL => (emptyinunitempty => (setadjoinIR => (setadjoinE => (setadjoinOr => (setoftrueEq => (powersetI => (emptyinPowerset => (emptyInPowerset => (powersetE => (setunionI => (setunionE => (subPowSU => (exuE2 => (nonemptyImpWitness => (uniqinunit => (notinsingleton => (eqinunit => (singletonsswitch => (upairsetE => (upairsetIL => (upairsetIR => (emptyE1 => (vacuousDall => (quantDeMorgan1 => (quantDeMorgan2 => (quantDeMorgan3 => (quantDeMorgan4 => (prop2setI => (prop2set2propI => (notdexE => (notdallE => (exuI1 => (exuI3 => (exuI2 => (inCongP => (in__Cong => (exuE3u => (exu__Cong => (emptyset = emptyset)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))),
% 2.09/1.59    file('/export/starexec/sandbox2/tmp/tmp.xQ5qklvtR3/DTF2THF_29955.p',emptyset__Cong)).
% 2.09/1.59  % SZS output end Proof for DTF2THF_29955
% 2.09/1.59  % (30054)------------------------------
% 2.09/1.59  % (30054)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.09/1.59  % (30054)Termination reason: Refutation
% 2.09/1.59  
% 2.09/1.59  % (30054)Memory used [KB]: 5884
% 2.09/1.59  % (30054)Time elapsed: 0.019 s
% 2.09/1.59  % (30054)Instructions burned: 36 (million)
% 2.09/1.59  % (30054)------------------------------
% 2.09/1.59  % (30054)------------------------------
% 2.09/1.59  % (30053)Success in time 0.037 s
%------------------------------------------------------------------------------