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DT2H2X---1.9.5.THM-Ref.s

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%------------------------------------------------------------------------------
% File     : DT2H2X---1.9.5
% Problem  : SEU641^1 : TPTP v9.2.1. Released v3.7.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : /export/starexec/sandbox2/solver/bin/run_DT2H2X /export/starexec/sandbox2/benchmark/theBenchmark.p 300

% Computer : n001.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 09:35:53 AM UTC 2026

% Result   : Theorem 2.40s 1.64s
% Output   : Refutation 2.40s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   12
%            Number of leaves      :    4
% Syntax   : Number of formulae    :   24 (   9 unt;   0 typ;   0 def)
%            Number of atoms       : 2481 ( 676 equ;   0 cnn)
%            Maximal formula atoms :  159 ( 103 avg)
%            Number of connectives : 1226 (  19   ~;   8   |; 479   &;  85   @)
%                                         (   1 <=>; 634  =>;   0  <=;   0 <~>)
%            Maximal formula depth :  162 (  49 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :  298 ( 295 usr; 163 con; 0-4 aty)
%            Number of variables   :   26 (   0   ^;  17   !;   9   ?;  26   :)

% 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_88,type,
    subset: $i > $i > $o ).

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

thf(func_def_90,type,
    setsmeet: $i > $i > $o ).

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

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

thf(func_def_135,type,
    regular: $i > $o ).

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

thf(func_def_147,type,
    symdiff: $i > $i > $i ).

thf(func_def_153,type,
    iskpair: $i > $o ).

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

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

thf(func_def_177,type,
    singleton: $i > $o ).

thf(func_def_179,type,
    ex1: $i > ( $i > $o ) > $o ).

thf(func_def_195,type,
    sP0: $i > $o > $i > $i > $o ).

thf(func_def_198,type,
    sP3: $i > $i > $o ).

thf(func_def_199,type,
    sP4: $i > $o ).

thf(func_def_200,type,
    sP5: $i > $i > $o ).

thf(func_def_201,type,
    sP6: $i > $i > $o ).

thf(func_def_207,type,
    sK12: $i > $o ).

thf(func_def_209,type,
    sK14: ( $i > $o ) > $i > $i ).

thf(func_def_216,type,
    sK21: $i > $i > $i ).

thf(func_def_217,type,
    sK22: $i > $i > $i ).

thf(func_def_222,type,
    sK27: $i > $o ).

thf(func_def_225,type,
    sK30: $i > $i > $i ).

thf(func_def_234,type,
    sK39: $i > $i > $i ).

thf(func_def_235,type,
    sK40: $i > $o ).

thf(func_def_236,type,
    sK41: ( $i > $o ) > $i ).

thf(func_def_239,type,
    sK44: $i > $o ).

thf(func_def_256,type,
    sK61: ( $i > $o ) > ( $i > $o ) > $i ).

thf(func_def_257,type,
    sK62: ( $i > $o ) > ( $i > $o ) > $i ).

thf(func_def_258,type,
    sK63: $i > $o ).

thf(func_def_259,type,
    sK64: $i > $o ).

thf(func_def_274,type,
    sK79: $i > $i ).

thf(func_def_279,type,
    sK84: $i > $o ).

thf(func_def_285,type,
    sK90: $i > $i ).

thf(func_def_289,type,
    sK94: $i > $o ).

thf(func_def_291,type,
    sK96: ( $i > $o ) > ( $i > $o ) > $i > $i > $i ).

thf(func_def_292,type,
    sK97: ( $i > $o ) > ( $i > $o ) > $i > $i > $i ).

thf(func_def_295,type,
    sK100: $i > $o ).

thf(func_def_296,type,
    sK101: $i > $o ).

thf(func_def_297,type,
    sK102: $i > $o ).

thf(func_def_298,type,
    sK103: $i > $i ).

thf(func_def_299,type,
    sK104: ( $i > $o ) > $i ).

thf(func_def_306,type,
    sK111: $i > $o ).

thf(func_def_308,type,
    sK113: $i > ( $i > $o ) > $i ).

thf(func_def_318,type,
    sK123: $i > $o ).

thf(func_def_323,type,
    sK128: $i > $o ).

thf(func_def_325,type,
    sK130: $i > ( $i > $o ) > $i ).

thf(func_def_328,type,
    sK133: $i > $o ).

thf(func_def_330,type,
    sK135: $i > ( $i > $o ) > $i ).

thf(func_def_346,type,
    sK151: $i > $i > $i ).

thf(func_def_376,type,
    sK181: $i > $i > $i > $i ).

thf(func_def_377,type,
    sK182: $i > $i > $i > $i ).

thf(func_def_381,type,
    sK186: ( $i > $o ) > ( $i > $o ) > $i ).

thf(func_def_382,type,
    sK187: ( $i > $o ) > ( $i > $o ) > $i ).

thf(func_def_383,type,
    sK188: $i > $o ).

thf(func_def_384,type,
    sK189: $i > $o ).

thf(func_def_417,type,
    sK222: ( $i > $o ) > $i > $i ).

thf(func_def_419,type,
    sK224: $i > $o ).

thf(func_def_424,type,
    sK229: $i > $i > $i ).

thf(func_def_428,type,
    sK233: $i > $o ).

thf(func_def_430,type,
    sK235: ( $i > $o ) > $i > $i ).

thf(func_def_431,type,
    sK236: $i > $o ).

thf(func_def_432,type,
    sK237: $i > $o ).

thf(func_def_435,type,
    sK240: $i > ( $i > $o ) > $i ).

thf(func_def_436,type,
    sK241: $i > $i ).

thf(func_def_439,type,
    sK244: $i > $i ).

thf(func_def_441,type,
    sK246: $i > $o ).

thf(func_def_450,type,
    sK255: $o > $i > $i > $i ).

thf(func_def_460,type,
    sK265: $i > $o ).

thf(func_def_463,type,
    sK268: $i > ( $i > $o ) > $i ).

thf(func_def_464,type,
    sK269: $i > ( $i > $o ) > $i ).

thf(func_def_475,type,
    sK280: $i > $i > $i ).

thf(func_def_481,type,
    sK286: $i > $i > $i ).

thf(func_def_482,type,
    sK287: $i > $o ).

thf(func_def_484,type,
    sK289: $i > $o ).

thf(func_def_488,type,
    sK293: $i > $i > ( $i > $o ) > $i ).

thf(func_def_489,type,
    sK294: $i > $o ).

thf(func_def_492,type,
    sK297: $i > $i ).

thf(func_def_522,type,
    sK327: $i > $o ).

thf(func_def_525,type,
    sK330: $i > $i > $o ).

thf(func_def_526,type,
    sK331: $i > $i ).

thf(func_def_527,type,
    sK332: $i > $i ).

thf(func_def_528,type,
    sK333: ( $i > $i > $o ) > $i > $i ).

thf(func_def_529,type,
    sK334: ( $i > $i > $o ) > $i > $i ).

thf(func_def_530,type,
    sK335: $i > ( $i > $i > $o ) > $i > $i ).

thf(func_def_534,type,
    sK339: ( $i > $o ) > $i ).

thf(func_def_535,type,
    sK340: ( $i > $o ) > $i ).

thf(func_def_536,type,
    sK341: $i > $o ).

thf(func_def_545,type,
    sK350: $i > $o ).

thf(func_def_546,type,
    sK351: $i > $i > $i ).

thf(func_def_557,type,
    sK362: $i > $i ).

thf(func_def_570,type,
    sK375: $i > $i > $i ).

thf(func_def_571,type,
    sK376: $i > $i > $i ).

thf(func_def_572,type,
    sK377: $i > $i > $i ).

thf(func_def_573,type,
    sK378: $i > $i > $i ).

thf(func_def_574,type,
    sK379: $i > $i > $i ).

thf(func_def_575,type,
    sK380: $i > $i > $i > $i ).

thf(func_def_576,type,
    sK381: $i > $i ).

thf(func_def_577,type,
    sK382: $i > $i ).

thf(func_def_578,type,
    sK383: $i > $i ).

thf(func_def_579,type,
    sK384: $i > $i ).

thf(func_def_580,type,
    sK385: $i > $i > $i > $i ).

thf(func_def_581,type,
    sK386: $i > $i > $i > $i ).

thf(func_def_582,type,
    sK387: $i > $i > $i ).

thf(func_def_583,type,
    sK388: $i > $i > $i ).

thf(func_def_584,type,
    sK389: $i > $i > $i ).

thf(func_def_586,type,
    sK391: $i > $i ).

thf(func_def_587,type,
    sK392: $i > $i ).

thf(func_def_588,type,
    sK393: $i > $i ).

thf(func_def_592,type,
    sK397: $i > $i > $i ).

thf(func_def_594,type,
    sK399: $i > $i ).

thf(func_def_603,type,
    sK408: ( $i > $o ) > $i > $i ).

thf(func_def_605,type,
    sK410: $i > $o ).

thf(func_def_607,type,
    sK412: $i > $o ).

thf(func_def_610,type,
    sK415: $i > ( $i > $o ) > $i ).

thf(func_def_611,type,
    sK416: $i > ( $i > $o ) > $i ).

thf(func_def_612,type,
    sK417: $i > $o ).

thf(func_def_620,type,
    sK425: $i > $o ).

thf(func_def_622,type,
    sK427: ( $i > $o ) > $i > $i ).

thf(func_def_634,type,
    sK439: ( $i > $o ) > $i ).

thf(func_def_635,type,
    sK440: $i > $o ).

thf(func_def_636,type,
    sK441: $i > $i ).

thf(func_def_638,type,
    ph443: 
      !>[X0: $tType] : X0 ).

thf(f3196,plain,
    $false,
    inference(subsumption_resolution,[status(thm)],[f3195,f1616]) ).

thf(f1616,plain,
    sK35 != sK36,
    inference(cnf_transformation,[status(thm)],[f749]) ).

thf(f749,plain,
    ( ( symdiffIneg1 = $true )
    & ( emptysetsubset = $true )
    & ( binintersectI = $true )
    & ( setextAx = $true )
    & ( setunionE = $true )
    & ( dsetconstr__Cong = $true )
    & ( in__Cong = $true )
    & ( setminusER = $true )
    & ( binintersectSubset4 = $true )
    & ( upairset2E = $true )
    & ( powersetsubset = $true )
    & ( emptyInPowerset = $true )
    & ( setminusLsub = $true )
    & ( setextsub = $true )
    & ( sK35 != sK36 )
    & ( ( setadjoin @ sK35 @ emptyset )
      = ( setadjoin @ sK36 @ emptyset ) )
    & ( exuEu = $true )
    & ( binintersectLsub = $true )
    & ( subsetTrans = $true )
    & ( prop2set2propI = $true )
    & ( cartprodmempair = $true )
    & ( subset2powerset = $true )
    & ( binintersectEL = $true )
    & ( emptysetAx = $true )
    & ( vacuousDall = $true )
    & ( setunionsingleton2 = $true )
    & ( emptyinPowerset = $true )
    & ( cartprodpairin = $true )
    & ( quantDeMorgan1 = $true )
    & ( exuE2 = $true )
    & ( ex1I = $true )
    & ( singletoninpowerset = $true )
    & ( eqimpsubset2 = $true )
    & ( binintersectER = $true )
    & ( secondinupair = $true )
    & ( cartprodmempair1 = $true )
    & ( upairsetE = $true )
    & ( notdallE = $true )
    & ( notinsingleton = $true )
    & ( setminusILneg = $true )
    & ( singletonprop = $true )
    & ( emptyinunitempty = $true )
    & ( symdiffIneg2 = $true )
    & ( setadjoinOr = $true )
    & ( symdiffI2 = $true )
    & ( exuE1 = $true )
    & ( setbeta = $true )
    & ( setminusIRneg = $true )
    & ( setminusEL = $true )
    & ( notequalI2 = $true )
    & ( emptyI = $true )
    & ( ubforcartprodlem1 = $true )
    & ( foundationAx = $true )
    & ( sepInPowerset = $true )
    & ( bs114d = $true )
    & ( ubforcartprodlem2 = $true )
    & ( powersetE = $true )
    & ( setukpairIR = $true )
    & ( symdiffE = $true )
    & ( sepSubset = $true )
    & ( upairinpowunion = $true )
    & ( omegaIndAx = $true )
    & ( descrp = $true )
    & ( subsetI1 = $true )
    & ( exuE3u = $true )
    & ( ex1I2 = $true )
    & ( binunionE = $true )
    & ( emptyE1 = $true )
    & ( quantDeMorgan3 = $true )
    & ( replAx = $true )
    & ( subsetE = $true )
    & ( exuI2 = $true )
    & ( symdiffI1 = $true )
    & ( emptysetimpfalse = $true )
    & ( setminusERneg = $true )
    & ( inPowerset = $true )
    & ( powersetI = $true )
    & ( subsetI2 = $true )
    & ( binunionIL = $true )
    & ( emptysetE = $true )
    & ( setunionsingleton1 = $true )
    & ( prop2setI = $true )
    & ( subPowSU = $true )
    & ( powersetI1 = $true )
    & ( eqimpsubset1 = $true )
    & ( setminusI = $true )
    & ( setadjoinAx = $true )
    & ( powersetAx = $true )
    & ( setunionI = $true )
    & ( setminusSubset1 = $true )
    & ( singletoninpowunion = $true )
    & ( omegaSAx = $true )
    & ( noeltsimpempty = $true )
    & ( nonemptyImpWitness = $true )
    & ( subsetemptysetimpeq = $true )
    & ( ubforcartprodlem3 = $true )
    & ( setadjoinSub2 = $true )
    & ( binunionRsub = $true )
    & ( dsetconstrI = $true )
    & ( exu__Cong = $true )
    & ( notsubsetI = $true )
    & ( exuI3 = $true )
    & ( setadjoinE = $true )
    & ( setadjoin__Cong = $true )
    & ( setunionsingleton = $true )
    & ( wellorderingAx = $true )
    & ( setadjoinIL = $true )
    & ( setadjoinSub = $true )
    & ( binintersectRsub = $true )
    & ( setminusELneg = $true )
    & ( setminusSubset2 = $true )
    & ( singletonsubset = $true )
    & ( quantDeMorgan2 = $true )
    & ( setukpairIL = $true )
    & ( powerset__Cong = $true )
    & ( dsetconstrER = $true )
    & ( setunion__Cong = $true )
    & ( setunionAx = $true )
    & ( setadjoinIR = $true )
    & ( emptyset__Cong = $true )
    & ( nonemptyI = $true )
    & ( quantDeMorgan4 = $true )
    & ( nonemptyI1 = $true )
    & ( omega0Ax = $true )
    & ( notinemptyset = $true )
    & ( powersetE1 = $true )
    & ( kpairiskpair = $true )
    & ( binunionLsub = $true )
    & ( setext = $true )
    & ( ex1E1 = $true )
    & ( omega__Cong = $true )
    & ( notequalI1 = $true )
    & ( kpairp = $true )
    & ( subsetE2 = $true )
    & ( binintersectSubset2 = $true )
    & ( setoftrueEq = $true )
    & ( binintersectSubset5 = $true )
    & ( upairsetIR = $true )
    & ( binintersectSubset1 = $true )
    & ( singletonsswitch = $true )
    & ( subsetRefl = $true )
    & ( exuI1 = $true )
    & ( eqinunit = $true )
    & ( notdexE = $true )
    & ( upairsubunion = $true )
    & ( binunionEcases = $true )
    & ( upairset2IR = $true )
    & ( upairsetIL = $true )
    & ( inCongP = $true )
    & ( exuE3e = $true )
    & ( binunionIR = $true )
    & ( uniqinunit = $true )
    & ( prop2setE = $true )
    & ( binintersectSubset3 = $true )
    & ( descr__Cong = $true )
    & ( nonemptyE1 = $true )
    & ( disjointsetsI1 = $true )
    & ( setunionE2 = $true )
    & ( dsetconstrEL = $true ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK35,sK36])],[f656,f748]) ).

thf(f748,plain,
    ( ? [X0: $i,X1: $i] :
        ( ( X0 != X1 )
        & ( ( setadjoin @ X1 @ emptyset )
          = ( setadjoin @ X0 @ emptyset ) ) )
   => ( ( sK35 != sK36 )
      & ( ( setadjoin @ sK35 @ emptyset )
        = ( setadjoin @ sK36 @ emptyset ) ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f656,plain,
    ( ( symdiffIneg1 = $true )
    & ( emptysetsubset = $true )
    & ( binintersectI = $true )
    & ( setextAx = $true )
    & ( setunionE = $true )
    & ( dsetconstr__Cong = $true )
    & ( in__Cong = $true )
    & ( setminusER = $true )
    & ( binintersectSubset4 = $true )
    & ( upairset2E = $true )
    & ( powersetsubset = $true )
    & ( emptyInPowerset = $true )
    & ( setminusLsub = $true )
    & ( setextsub = $true )
    & ? [X0: $i,X1: $i] :
        ( ( X0 != X1 )
        & ( ( setadjoin @ X1 @ emptyset )
          = ( setadjoin @ X0 @ emptyset ) ) )
    & ( exuEu = $true )
    & ( binintersectLsub = $true )
    & ( subsetTrans = $true )
    & ( prop2set2propI = $true )
    & ( cartprodmempair = $true )
    & ( subset2powerset = $true )
    & ( binintersectEL = $true )
    & ( emptysetAx = $true )
    & ( vacuousDall = $true )
    & ( setunionsingleton2 = $true )
    & ( emptyinPowerset = $true )
    & ( cartprodpairin = $true )
    & ( quantDeMorgan1 = $true )
    & ( exuE2 = $true )
    & ( ex1I = $true )
    & ( singletoninpowerset = $true )
    & ( eqimpsubset2 = $true )
    & ( binintersectER = $true )
    & ( secondinupair = $true )
    & ( cartprodmempair1 = $true )
    & ( upairsetE = $true )
    & ( notdallE = $true )
    & ( notinsingleton = $true )
    & ( setminusILneg = $true )
    & ( singletonprop = $true )
    & ( emptyinunitempty = $true )
    & ( symdiffIneg2 = $true )
    & ( setadjoinOr = $true )
    & ( symdiffI2 = $true )
    & ( exuE1 = $true )
    & ( setbeta = $true )
    & ( setminusIRneg = $true )
    & ( setminusEL = $true )
    & ( notequalI2 = $true )
    & ( emptyI = $true )
    & ( ubforcartprodlem1 = $true )
    & ( foundationAx = $true )
    & ( sepInPowerset = $true )
    & ( bs114d = $true )
    & ( ubforcartprodlem2 = $true )
    & ( powersetE = $true )
    & ( setukpairIR = $true )
    & ( symdiffE = $true )
    & ( sepSubset = $true )
    & ( upairinpowunion = $true )
    & ( omegaIndAx = $true )
    & ( descrp = $true )
    & ( subsetI1 = $true )
    & ( exuE3u = $true )
    & ( ex1I2 = $true )
    & ( binunionE = $true )
    & ( emptyE1 = $true )
    & ( quantDeMorgan3 = $true )
    & ( replAx = $true )
    & ( subsetE = $true )
    & ( exuI2 = $true )
    & ( symdiffI1 = $true )
    & ( emptysetimpfalse = $true )
    & ( setminusERneg = $true )
    & ( inPowerset = $true )
    & ( powersetI = $true )
    & ( subsetI2 = $true )
    & ( binunionIL = $true )
    & ( emptysetE = $true )
    & ( setunionsingleton1 = $true )
    & ( prop2setI = $true )
    & ( subPowSU = $true )
    & ( powersetI1 = $true )
    & ( eqimpsubset1 = $true )
    & ( setminusI = $true )
    & ( setadjoinAx = $true )
    & ( powersetAx = $true )
    & ( setunionI = $true )
    & ( setminusSubset1 = $true )
    & ( singletoninpowunion = $true )
    & ( omegaSAx = $true )
    & ( noeltsimpempty = $true )
    & ( nonemptyImpWitness = $true )
    & ( subsetemptysetimpeq = $true )
    & ( ubforcartprodlem3 = $true )
    & ( setadjoinSub2 = $true )
    & ( binunionRsub = $true )
    & ( dsetconstrI = $true )
    & ( exu__Cong = $true )
    & ( notsubsetI = $true )
    & ( exuI3 = $true )
    & ( setadjoinE = $true )
    & ( setadjoin__Cong = $true )
    & ( setunionsingleton = $true )
    & ( wellorderingAx = $true )
    & ( setadjoinIL = $true )
    & ( setadjoinSub = $true )
    & ( binintersectRsub = $true )
    & ( setminusELneg = $true )
    & ( setminusSubset2 = $true )
    & ( singletonsubset = $true )
    & ( quantDeMorgan2 = $true )
    & ( setukpairIL = $true )
    & ( powerset__Cong = $true )
    & ( dsetconstrER = $true )
    & ( setunion__Cong = $true )
    & ( setunionAx = $true )
    & ( setadjoinIR = $true )
    & ( emptyset__Cong = $true )
    & ( nonemptyI = $true )
    & ( quantDeMorgan4 = $true )
    & ( nonemptyI1 = $true )
    & ( omega0Ax = $true )
    & ( notinemptyset = $true )
    & ( powersetE1 = $true )
    & ( kpairiskpair = $true )
    & ( binunionLsub = $true )
    & ( setext = $true )
    & ( ex1E1 = $true )
    & ( omega__Cong = $true )
    & ( notequalI1 = $true )
    & ( kpairp = $true )
    & ( subsetE2 = $true )
    & ( binintersectSubset2 = $true )
    & ( setoftrueEq = $true )
    & ( binintersectSubset5 = $true )
    & ( upairsetIR = $true )
    & ( binintersectSubset1 = $true )
    & ( singletonsswitch = $true )
    & ( subsetRefl = $true )
    & ( exuI1 = $true )
    & ( eqinunit = $true )
    & ( notdexE = $true )
    & ( upairsubunion = $true )
    & ( binunionEcases = $true )
    & ( upairset2IR = $true )
    & ( upairsetIL = $true )
    & ( inCongP = $true )
    & ( exuE3e = $true )
    & ( binunionIR = $true )
    & ( uniqinunit = $true )
    & ( prop2setE = $true )
    & ( binintersectSubset3 = $true )
    & ( descr__Cong = $true )
    & ( nonemptyE1 = $true )
    & ( disjointsetsI1 = $true )
    & ( setunionE2 = $true )
    & ( dsetconstrEL = $true ) ),
    inference(flattening,[status(thm)],[f655]) ).

thf(f655,plain,
    ( ? [X0: $i,X1: $i] :
        ( ( X0 != X1 )
        & ( ( setadjoin @ X1 @ emptyset )
          = ( setadjoin @ X0 @ emptyset ) ) )
    & ( ex1I2 = $true )
    & ( ex1I = $true )
    & ( ex1E1 = $true )
    & ( singletonprop = $true )
    & ( setunionsingleton = $true )
    & ( setunionsingleton2 = $true )
    & ( setunionsingleton1 = $true )
    & ( setunionE2 = $true )
    & ( cartprodmempair = $true )
    & ( cartprodmempair1 = $true )
    & ( cartprodpairin = $true )
    & ( ubforcartprodlem3 = $true )
    & ( ubforcartprodlem2 = $true )
    & ( ubforcartprodlem1 = $true )
    & ( upairinpowunion = $true )
    & ( upairsubunion = $true )
    & ( upairset2E = $true )
    & ( singletoninpowunion = $true )
    & ( singletoninpowerset = $true )
    & ( singletonsubset = $true )
    & ( kpairp = $true )
    & ( kpairiskpair = $true )
    & ( setukpairIR = $true )
    & ( setukpairIL = $true )
    & ( secondinupair = $true )
    & ( symdiffIneg2 = $true )
    & ( symdiffIneg1 = $true )
    & ( symdiffI2 = $true )
    & ( symdiffI1 = $true )
    & ( symdiffE = $true )
    & ( setminusSubset1 = $true )
    & ( setminusLsub = $true )
    & ( setminusIRneg = $true )
    & ( setminusILneg = $true )
    & ( setminusELneg = $true )
    & ( setminusERneg = $true )
    & ( setminusSubset2 = $true )
    & ( setminusER = $true )
    & ( setminusEL = $true )
    & ( setminusI = $true )
    & ( bs114d = $true )
    & ( binintersectSubset1 = $true )
    & ( binintersectSubset4 = $true )
    & ( binintersectRsub = $true )
    & ( disjointsetsI1 = $true )
    & ( binintersectER = $true )
    & ( binintersectSubset3 = $true )
    & ( binintersectSubset2 = $true )
    & ( binintersectLsub = $true )
    & ( binintersectEL = $true )
    & ( binintersectSubset5 = $true )
    & ( binintersectI = $true )
    & ( binunionRsub = $true )
    & ( binunionLsub = $true )
    & ( binunionE = $true )
    & ( binunionEcases = $true )
    & ( binunionIR = $true )
    & ( upairset2IR = $true )
    & ( binunionIL = $true )
    & ( sepSubset = $true )
    & ( sepInPowerset = $true )
    & ( powersetsubset = $true )
    & ( inPowerset = $true )
    & ( powersetE1 = $true )
    & ( powersetI1 = $true )
    & ( subsetemptysetimpeq = $true )
    & ( setextsub = $true )
    & ( subset2powerset = $true )
    & ( setadjoinSub2 = $true )
    & ( setadjoinSub = $true )
    & ( subsetTrans = $true )
    & ( subsetRefl = $true )
    & ( notequalI2 = $true )
    & ( notequalI1 = $true )
    & ( notsubsetI = $true )
    & ( subsetE2 = $true )
    & ( subsetE = $true )
    & ( emptysetsubset = $true )
    & ( subsetI2 = $true )
    & ( eqimpsubset1 = $true )
    & ( eqimpsubset2 = $true )
    & ( subsetI1 = $true )
    & ( dsetconstr__Cong = $true )
    & ( descr__Cong = $true )
    & ( exuEu = $true )
    & ( omega__Cong = $true )
    & ( setunion__Cong = $true )
    & ( powerset__Cong = $true )
    & ( setadjoin__Cong = $true )
    & ( emptyset__Cong = $true )
    & ( 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)],[f458]) ).

thf(f458,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__Cong = $true )
                                                                                                                                           => ( ( setadjoin__Cong = $true )
                                                                                                                                             => ( ( powerset__Cong = $true )
                                                                                                                                               => ( ( setunion__Cong = $true )
                                                                                                                                                 => ( ( omega__Cong = $true )
                                                                                                                                                   => ( ( exuEu = $true )
                                                                                                                                                     => ( ( descr__Cong = $true )
                                                                                                                                                       => ( ( dsetconstr__Cong = $true )
                                                                                                                                                         => ( ( subsetI1 = $true )
                                                                                                                                                           => ( ( eqimpsubset2 = $true )
                                                                                                                                                             => ( ( eqimpsubset1 = $true )
                                                                                                                                                               => ( ( subsetI2 = $true )
                                                                                                                                                                 => ( ( emptysetsubset = $true )
                                                                                                                                                                   => ( ( subsetE = $true )
                                                                                                                                                                     => ( ( subsetE2 = $true )
                                                                                                                                                                       => ( ( notsubsetI = $true )
                                                                                                                                                                         => ( ( notequalI1 = $true )
                                                                                                                                                                           => ( ( notequalI2 = $true )
                                                                                                                                                                             => ( ( subsetRefl = $true )
                                                                                                                                                                               => ( ( subsetTrans = $true )
                                                                                                                                                                                 => ( ( setadjoinSub = $true )
                                                                                                                                                                                   => ( ( setadjoinSub2 = $true )
                                                                                                                                                                                     => ( ( subset2powerset = $true )
                                                                                                                                                                                       => ( ( setextsub = $true )
                                                                                                                                                                                         => ( ( subsetemptysetimpeq = $true )
                                                                                                                                                                                           => ( ( powersetI1 = $true )
                                                                                                                                                                                             => ( ( powersetE1 = $true )
                                                                                                                                                                                               => ( ( inPowerset = $true )
                                                                                                                                                                                                 => ( ( powersetsubset = $true )
                                                                                                                                                                                                   => ( ( sepInPowerset = $true )
                                                                                                                                                                                                     => ( ( sepSubset = $true )
                                                                                                                                                                                                       => ( ( binunionIL = $true )
                                                                                                                                                                                                         => ( ( upairset2IR = $true )
                                                                                                                                                                                                           => ( ( binunionIR = $true )
                                                                                                                                                                                                             => ( ( binunionEcases = $true )
                                                                                                                                                                                                               => ( ( binunionE = $true )
                                                                                                                                                                                                                 => ( ( binunionLsub = $true )
                                                                                                                                                                                                                   => ( ( binunionRsub = $true )
                                                                                                                                                                                                                     => ( ( binintersectI = $true )
                                                                                                                                                                                                                       => ( ( binintersectSubset5 = $true )
                                                                                                                                                                                                                         => ( ( binintersectEL = $true )
                                                                                                                                                                                                                           => ( ( binintersectLsub = $true )
                                                                                                                                                                                                                             => ( ( binintersectSubset2 = $true )
                                                                                                                                                                                                                               => ( ( binintersectSubset3 = $true )
                                                                                                                                                                                                                                 => ( ( binintersectER = $true )
                                                                                                                                                                                                                                   => ( ( disjointsetsI1 = $true )
                                                                                                                                                                                                                                     => ( ( binintersectRsub = $true )
                                                                                                                                                                                                                                       => ( ( binintersectSubset4 = $true )
                                                                                                                                                                                                                                         => ( ( binintersectSubset1 = $true )
                                                                                                                                                                                                                                           => ( ( bs114d = $true )
                                                                                                                                                                                                                                             => ( ( setminusI = $true )
                                                                                                                                                                                                                                               => ( ( setminusEL = $true )
                                                                                                                                                                                                                                                 => ( ( setminusER = $true )
                                                                                                                                                                                                                                                   => ( ( setminusSubset2 = $true )
                                                                                                                                                                                                                                                     => ( ( setminusERneg = $true )
                                                                                                                                                                                                                                                       => ( ( setminusELneg = $true )
                                                                                                                                                                                                                                                         => ( ( setminusILneg = $true )
                                                                                                                                                                                                                                                           => ( ( setminusIRneg = $true )
                                                                                                                                                                                                                                                             => ( ( setminusLsub = $true )
                                                                                                                                                                                                                                                               => ( ( setminusSubset1 = $true )
                                                                                                                                                                                                                                                                 => ( ( symdiffE = $true )
                                                                                                                                                                                                                                                                   => ( ( symdiffI1 = $true )
                                                                                                                                                                                                                                                                     => ( ( symdiffI2 = $true )
                                                                                                                                                                                                                                                                       => ( ( symdiffIneg1 = $true )
                                                                                                                                                                                                                                                                         => ( ( symdiffIneg2 = $true )
                                                                                                                                                                                                                                                                           => ( ( secondinupair = $true )
                                                                                                                                                                                                                                                                             => ( ( setukpairIL = $true )
                                                                                                                                                                                                                                                                               => ( ( setukpairIR = $true )
                                                                                                                                                                                                                                                                                 => ( ( kpairiskpair = $true )
                                                                                                                                                                                                                                                                                   => ( ( kpairp = $true )
                                                                                                                                                                                                                                                                                     => ( ( singletonsubset = $true )
                                                                                                                                                                                                                                                                                       => ( ( singletoninpowerset = $true )
                                                                                                                                                                                                                                                                                         => ( ( singletoninpowunion = $true )
                                                                                                                                                                                                                                                                                           => ( ( upairset2E = $true )
                                                                                                                                                                                                                                                                                             => ( ( upairsubunion = $true )
                                                                                                                                                                                                                                                                                               => ( ( upairinpowunion = $true )
                                                                                                                                                                                                                                                                                                 => ( ( ubforcartprodlem1 = $true )
                                                                                                                                                                                                                                                                                                   => ( ( ubforcartprodlem2 = $true )
                                                                                                                                                                                                                                                                                                     => ( ( ubforcartprodlem3 = $true )
                                                                                                                                                                                                                                                                                                       => ( ( cartprodpairin = $true )
                                                                                                                                                                                                                                                                                                         => ( ( cartprodmempair1 = $true )
                                                                                                                                                                                                                                                                                                           => ( ( cartprodmempair = $true )
                                                                                                                                                                                                                                                                                                             => ( ( setunionE2 = $true )
                                                                                                                                                                                                                                                                                                               => ( ( setunionsingleton1 = $true )
                                                                                                                                                                                                                                                                                                                 => ( ( setunionsingleton2 = $true )
                                                                                                                                                                                                                                                                                                                   => ( ( setunionsingleton = $true )
                                                                                                                                                                                                                                                                                                                     => ( ( singletonprop = $true )
                                                                                                                                                                                                                                                                                                                       => ( ( ex1E1 = $true )
                                                                                                                                                                                                                                                                                                                         => ( ( ex1I = $true )
                                                                                                                                                                                                                                                                                                                           => ( ( ex1I2 = $true )
                                                                                                                                                                                                                                                                                                                             => ! [X0: $i,X1: $i] :
                                                                                                                                                                                                                                                                                                                                  ( ( ( setadjoin @ X1 @ emptyset )
                                                                                                                                                                                                                                                                                                                                    = ( setadjoin @ X0 @ emptyset ) )
                                                                                                                                                                                                                                                                                                                                 => ( X0 = X1 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    inference(fool_elimination,[status(thm)],[f457]) ).

thf(f457,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__Cong
                                                                                                                                           => ( setadjoin__Cong
                                                                                                                                             => ( powerset__Cong
                                                                                                                                               => ( setunion__Cong
                                                                                                                                                 => ( omega__Cong
                                                                                                                                                   => ( exuEu
                                                                                                                                                     => ( descr__Cong
                                                                                                                                                       => ( dsetconstr__Cong
                                                                                                                                                         => ( subsetI1
                                                                                                                                                           => ( eqimpsubset2
                                                                                                                                                             => ( eqimpsubset1
                                                                                                                                                               => ( subsetI2
                                                                                                                                                                 => ( emptysetsubset
                                                                                                                                                                   => ( subsetE
                                                                                                                                                                     => ( subsetE2
                                                                                                                                                                       => ( notsubsetI
                                                                                                                                                                         => ( notequalI1
                                                                                                                                                                           => ( notequalI2
                                                                                                                                                                             => ( subsetRefl
                                                                                                                                                                               => ( subsetTrans
                                                                                                                                                                                 => ( setadjoinSub
                                                                                                                                                                                   => ( setadjoinSub2
                                                                                                                                                                                     => ( subset2powerset
                                                                                                                                                                                       => ( setextsub
                                                                                                                                                                                         => ( subsetemptysetimpeq
                                                                                                                                                                                           => ( powersetI1
                                                                                                                                                                                             => ( powersetE1
                                                                                                                                                                                               => ( inPowerset
                                                                                                                                                                                                 => ( powersetsubset
                                                                                                                                                                                                   => ( sepInPowerset
                                                                                                                                                                                                     => ( sepSubset
                                                                                                                                                                                                       => ( binunionIL
                                                                                                                                                                                                         => ( upairset2IR
                                                                                                                                                                                                           => ( binunionIR
                                                                                                                                                                                                             => ( binunionEcases
                                                                                                                                                                                                               => ( binunionE
                                                                                                                                                                                                                 => ( binunionLsub
                                                                                                                                                                                                                   => ( binunionRsub
                                                                                                                                                                                                                     => ( binintersectI
                                                                                                                                                                                                                       => ( binintersectSubset5
                                                                                                                                                                                                                         => ( binintersectEL
                                                                                                                                                                                                                           => ( binintersectLsub
                                                                                                                                                                                                                             => ( binintersectSubset2
                                                                                                                                                                                                                               => ( binintersectSubset3
                                                                                                                                                                                                                                 => ( binintersectER
                                                                                                                                                                                                                                   => ( disjointsetsI1
                                                                                                                                                                                                                                     => ( binintersectRsub
                                                                                                                                                                                                                                       => ( binintersectSubset4
                                                                                                                                                                                                                                         => ( binintersectSubset1
                                                                                                                                                                                                                                           => ( bs114d
                                                                                                                                                                                                                                             => ( setminusI
                                                                                                                                                                                                                                               => ( setminusEL
                                                                                                                                                                                                                                                 => ( setminusER
                                                                                                                                                                                                                                                   => ( setminusSubset2
                                                                                                                                                                                                                                                     => ( setminusERneg
                                                                                                                                                                                                                                                       => ( setminusELneg
                                                                                                                                                                                                                                                         => ( setminusILneg
                                                                                                                                                                                                                                                           => ( setminusIRneg
                                                                                                                                                                                                                                                             => ( setminusLsub
                                                                                                                                                                                                                                                               => ( setminusSubset1
                                                                                                                                                                                                                                                                 => ( symdiffE
                                                                                                                                                                                                                                                                   => ( symdiffI1
                                                                                                                                                                                                                                                                     => ( symdiffI2
                                                                                                                                                                                                                                                                       => ( symdiffIneg1
                                                                                                                                                                                                                                                                         => ( symdiffIneg2
                                                                                                                                                                                                                                                                           => ( secondinupair
                                                                                                                                                                                                                                                                             => ( setukpairIL
                                                                                                                                                                                                                                                                               => ( setukpairIR
                                                                                                                                                                                                                                                                                 => ( kpairiskpair
                                                                                                                                                                                                                                                                                   => ( kpairp
                                                                                                                                                                                                                                                                                     => ( singletonsubset
                                                                                                                                                                                                                                                                                       => ( singletoninpowerset
                                                                                                                                                                                                                                                                                         => ( singletoninpowunion
                                                                                                                                                                                                                                                                                           => ( upairset2E
                                                                                                                                                                                                                                                                                             => ( upairsubunion
                                                                                                                                                                                                                                                                                               => ( upairinpowunion
                                                                                                                                                                                                                                                                                                 => ( ubforcartprodlem1
                                                                                                                                                                                                                                                                                                   => ( ubforcartprodlem2
                                                                                                                                                                                                                                                                                                     => ( ubforcartprodlem3
                                                                                                                                                                                                                                                                                                       => ( cartprodpairin
                                                                                                                                                                                                                                                                                                         => ( cartprodmempair1
                                                                                                                                                                                                                                                                                                           => ( cartprodmempair
                                                                                                                                                                                                                                                                                                             => ( setunionE2
                                                                                                                                                                                                                                                                                                               => ( setunionsingleton1
                                                                                                                                                                                                                                                                                                                 => ( setunionsingleton2
                                                                                                                                                                                                                                                                                                                   => ( setunionsingleton
                                                                                                                                                                                                                                                                                                                     => ( singletonprop
                                                                                                                                                                                                                                                                                                                       => ( ex1E1
                                                                                                                                                                                                                                                                                                                         => ( ex1I
                                                                                                                                                                                                                                                                                                                           => ( ex1I2
                                                                                                                                                                                                                                                                                                                             => ! [X0: $i,X1: $i] :
                                                                                                                                                                                                                                                                                                                                  ( ( ( setadjoin @ X1 @ emptyset )
                                                                                                                                                                                                                                                                                                                                    = ( setadjoin @ X0 @ emptyset ) )
                                                                                                                                                                                                                                                                                                                                 => ( X0 = X1 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    inference(rectify,[status(thm)],[f165]) ).

thf(f165,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__Cong
                                                                                                                                           => ( setadjoin__Cong
                                                                                                                                             => ( powerset__Cong
                                                                                                                                               => ( setunion__Cong
                                                                                                                                                 => ( omega__Cong
                                                                                                                                                   => ( exuEu
                                                                                                                                                     => ( descr__Cong
                                                                                                                                                       => ( dsetconstr__Cong
                                                                                                                                                         => ( subsetI1
                                                                                                                                                           => ( eqimpsubset2
                                                                                                                                                             => ( eqimpsubset1
                                                                                                                                                               => ( subsetI2
                                                                                                                                                                 => ( emptysetsubset
                                                                                                                                                                   => ( subsetE
                                                                                                                                                                     => ( subsetE2
                                                                                                                                                                       => ( notsubsetI
                                                                                                                                                                         => ( notequalI1
                                                                                                                                                                           => ( notequalI2
                                                                                                                                                                             => ( subsetRefl
                                                                                                                                                                               => ( subsetTrans
                                                                                                                                                                                 => ( setadjoinSub
                                                                                                                                                                                   => ( setadjoinSub2
                                                                                                                                                                                     => ( subset2powerset
                                                                                                                                                                                       => ( setextsub
                                                                                                                                                                                         => ( subsetemptysetimpeq
                                                                                                                                                                                           => ( powersetI1
                                                                                                                                                                                             => ( powersetE1
                                                                                                                                                                                               => ( inPowerset
                                                                                                                                                                                                 => ( powersetsubset
                                                                                                                                                                                                   => ( sepInPowerset
                                                                                                                                                                                                     => ( sepSubset
                                                                                                                                                                                                       => ( binunionIL
                                                                                                                                                                                                         => ( upairset2IR
                                                                                                                                                                                                           => ( binunionIR
                                                                                                                                                                                                             => ( binunionEcases
                                                                                                                                                                                                               => ( binunionE
                                                                                                                                                                                                                 => ( binunionLsub
                                                                                                                                                                                                                   => ( binunionRsub
                                                                                                                                                                                                                     => ( binintersectI
                                                                                                                                                                                                                       => ( binintersectSubset5
                                                                                                                                                                                                                         => ( binintersectEL
                                                                                                                                                                                                                           => ( binintersectLsub
                                                                                                                                                                                                                             => ( binintersectSubset2
                                                                                                                                                                                                                               => ( binintersectSubset3
                                                                                                                                                                                                                                 => ( binintersectER
                                                                                                                                                                                                                                   => ( disjointsetsI1
                                                                                                                                                                                                                                     => ( binintersectRsub
                                                                                                                                                                                                                                       => ( binintersectSubset4
                                                                                                                                                                                                                                         => ( binintersectSubset1
                                                                                                                                                                                                                                           => ( bs114d
                                                                                                                                                                                                                                             => ( setminusI
                                                                                                                                                                                                                                               => ( setminusEL
                                                                                                                                                                                                                                                 => ( setminusER
                                                                                                                                                                                                                                                   => ( setminusSubset2
                                                                                                                                                                                                                                                     => ( setminusERneg
                                                                                                                                                                                                                                                       => ( setminusELneg
                                                                                                                                                                                                                                                         => ( setminusILneg
                                                                                                                                                                                                                                                           => ( setminusIRneg
                                                                                                                                                                                                                                                             => ( setminusLsub
                                                                                                                                                                                                                                                               => ( setminusSubset1
                                                                                                                                                                                                                                                                 => ( symdiffE
                                                                                                                                                                                                                                                                   => ( symdiffI1
                                                                                                                                                                                                                                                                     => ( symdiffI2
                                                                                                                                                                                                                                                                       => ( symdiffIneg1
                                                                                                                                                                                                                                                                         => ( symdiffIneg2
                                                                                                                                                                                                                                                                           => ( secondinupair
                                                                                                                                                                                                                                                                             => ( setukpairIL
                                                                                                                                                                                                                                                                               => ( setukpairIR
                                                                                                                                                                                                                                                                                 => ( kpairiskpair
                                                                                                                                                                                                                                                                                   => ( kpairp
                                                                                                                                                                                                                                                                                     => ( singletonsubset
                                                                                                                                                                                                                                                                                       => ( singletoninpowerset
                                                                                                                                                                                                                                                                                         => ( singletoninpowunion
                                                                                                                                                                                                                                                                                           => ( upairset2E
                                                                                                                                                                                                                                                                                             => ( upairsubunion
                                                                                                                                                                                                                                                                                               => ( upairinpowunion
                                                                                                                                                                                                                                                                                                 => ( ubforcartprodlem1
                                                                                                                                                                                                                                                                                                   => ( ubforcartprodlem2
                                                                                                                                                                                                                                                                                                     => ( ubforcartprodlem3
                                                                                                                                                                                                                                                                                                       => ( cartprodpairin
                                                                                                                                                                                                                                                                                                         => ( cartprodmempair1
                                                                                                                                                                                                                                                                                                           => ( cartprodmempair
                                                                                                                                                                                                                                                                                                             => ( setunionE2
                                                                                                                                                                                                                                                                                                               => ( setunionsingleton1
                                                                                                                                                                                                                                                                                                                 => ( setunionsingleton2
                                                                                                                                                                                                                                                                                                                   => ( setunionsingleton
                                                                                                                                                                                                                                                                                                                     => ( singletonprop
                                                                                                                                                                                                                                                                                                                       => ( ex1E1
                                                                                                                                                                                                                                                                                                                         => ( ex1I
                                                                                                                                                                                                                                                                                                                           => ( ex1I2
                                                                                                                                                                                                                                                                                                                             => ! [X1: $i,X2: $i] :
                                                                                                                                                                                                                                                                                                                                  ( ( ( setadjoin @ X2 @ emptyset )
                                                                                                                                                                                                                                                                                                                                    = ( setadjoin @ X1 @ emptyset ) )
                                                                                                                                                                                                                                                                                                                                 => ( X1 = X2 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    inference(negated_conjecture,[status(cth)],[f164]) ).

thf(f164,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__Cong
                                                                                                                                         => ( setadjoin__Cong
                                                                                                                                           => ( powerset__Cong
                                                                                                                                             => ( setunion__Cong
                                                                                                                                               => ( omega__Cong
                                                                                                                                                 => ( exuEu
                                                                                                                                                   => ( descr__Cong
                                                                                                                                                     => ( dsetconstr__Cong
                                                                                                                                                       => ( subsetI1
                                                                                                                                                         => ( eqimpsubset2
                                                                                                                                                           => ( eqimpsubset1
                                                                                                                                                             => ( subsetI2
                                                                                                                                                               => ( emptysetsubset
                                                                                                                                                                 => ( subsetE
                                                                                                                                                                   => ( subsetE2
                                                                                                                                                                     => ( notsubsetI
                                                                                                                                                                       => ( notequalI1
                                                                                                                                                                         => ( notequalI2
                                                                                                                                                                           => ( subsetRefl
                                                                                                                                                                             => ( subsetTrans
                                                                                                                                                                               => ( setadjoinSub
                                                                                                                                                                                 => ( setadjoinSub2
                                                                                                                                                                                   => ( subset2powerset
                                                                                                                                                                                     => ( setextsub
                                                                                                                                                                                       => ( subsetemptysetimpeq
                                                                                                                                                                                         => ( powersetI1
                                                                                                                                                                                           => ( powersetE1
                                                                                                                                                                                             => ( inPowerset
                                                                                                                                                                                               => ( powersetsubset
                                                                                                                                                                                                 => ( sepInPowerset
                                                                                                                                                                                                   => ( sepSubset
                                                                                                                                                                                                     => ( binunionIL
                                                                                                                                                                                                       => ( upairset2IR
                                                                                                                                                                                                         => ( binunionIR
                                                                                                                                                                                                           => ( binunionEcases
                                                                                                                                                                                                             => ( binunionE
                                                                                                                                                                                                               => ( binunionLsub
                                                                                                                                                                                                                 => ( binunionRsub
                                                                                                                                                                                                                   => ( binintersectI
                                                                                                                                                                                                                     => ( binintersectSubset5
                                                                                                                                                                                                                       => ( binintersectEL
                                                                                                                                                                                                                         => ( binintersectLsub
                                                                                                                                                                                                                           => ( binintersectSubset2
                                                                                                                                                                                                                             => ( binintersectSubset3
                                                                                                                                                                                                                               => ( binintersectER
                                                                                                                                                                                                                                 => ( disjointsetsI1
                                                                                                                                                                                                                                   => ( binintersectRsub
                                                                                                                                                                                                                                     => ( binintersectSubset4
                                                                                                                                                                                                                                       => ( binintersectSubset1
                                                                                                                                                                                                                                         => ( bs114d
                                                                                                                                                                                                                                           => ( setminusI
                                                                                                                                                                                                                                             => ( setminusEL
                                                                                                                                                                                                                                               => ( setminusER
                                                                                                                                                                                                                                                 => ( setminusSubset2
                                                                                                                                                                                                                                                   => ( setminusERneg
                                                                                                                                                                                                                                                     => ( setminusELneg
                                                                                                                                                                                                                                                       => ( setminusILneg
                                                                                                                                                                                                                                                         => ( setminusIRneg
                                                                                                                                                                                                                                                           => ( setminusLsub
                                                                                                                                                                                                                                                             => ( setminusSubset1
                                                                                                                                                                                                                                                               => ( symdiffE
                                                                                                                                                                                                                                                                 => ( symdiffI1
                                                                                                                                                                                                                                                                   => ( symdiffI2
                                                                                                                                                                                                                                                                     => ( symdiffIneg1
                                                                                                                                                                                                                                                                       => ( symdiffIneg2
                                                                                                                                                                                                                                                                         => ( secondinupair
                                                                                                                                                                                                                                                                           => ( setukpairIL
                                                                                                                                                                                                                                                                             => ( setukpairIR
                                                                                                                                                                                                                                                                               => ( kpairiskpair
                                                                                                                                                                                                                                                                                 => ( kpairp
                                                                                                                                                                                                                                                                                   => ( singletonsubset
                                                                                                                                                                                                                                                                                     => ( singletoninpowerset
                                                                                                                                                                                                                                                                                       => ( singletoninpowunion
                                                                                                                                                                                                                                                                                         => ( upairset2E
                                                                                                                                                                                                                                                                                           => ( upairsubunion
                                                                                                                                                                                                                                                                                             => ( upairinpowunion
                                                                                                                                                                                                                                                                                               => ( ubforcartprodlem1
                                                                                                                                                                                                                                                                                                 => ( ubforcartprodlem2
                                                                                                                                                                                                                                                                                                   => ( ubforcartprodlem3
                                                                                                                                                                                                                                                                                                     => ( cartprodpairin
                                                                                                                                                                                                                                                                                                       => ( cartprodmempair1
                                                                                                                                                                                                                                                                                                         => ( cartprodmempair
                                                                                                                                                                                                                                                                                                           => ( setunionE2
                                                                                                                                                                                                                                                                                                             => ( setunionsingleton1
                                                                                                                                                                                                                                                                                                               => ( setunionsingleton2
                                                                                                                                                                                                                                                                                                                 => ( setunionsingleton
                                                                                                                                                                                                                                                                                                                   => ( singletonprop
                                                                                                                                                                                                                                                                                                                     => ( ex1E1
                                                                                                                                                                                                                                                                                                                       => ( ex1I
                                                                                                                                                                                                                                                                                                                         => ( ex1I2
                                                                                                                                                                                                                                                                                                                           => ! [X1: $i,X2: $i] :
                                                                                                                                                                                                                                                                                                                                ( ( ( setadjoin @ X2 @ emptyset )
                                                                                                                                                                                                                                                                                                                                  = ( setadjoin @ X1 @ emptyset ) )
                                                                                                                                                                                                                                                                                                                               => ( X1 = X2 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    file('/export/starexec/sandbox2/tmp/tmp.DxatUwJPum/DTF2THF_26966.p',singletonsuniq) ).

thf(f3195,plain,
    sK35 = sK36,
    inference(forward_demodulation,[status(thm)],[f3194,f2815]) ).

thf(f2815,plain,
    ! [X0: $i] :
      ( ( setunion @ ( setadjoin @ X0 @ emptyset ) )
      = X0 ),
    inference(trivial_inequality_removal,[status(thm)],[f2393]) ).

thf(f2393,plain,
    ! [X0: $i] :
      ( ( ( setunion @ ( setadjoin @ X0 @ emptyset ) )
        = X0 )
      | ( $true != $true ) ),
    inference(definition_unfolding,[status(thm)],[f1779,f1526]) ).

thf(f1526,plain,
    setunionsingleton = $true,
    inference(cnf_transformation,[status(thm)],[f749]) ).

thf(f1779,plain,
    ! [X0: $i] :
      ( ( ( setunion @ ( setadjoin @ X0 @ emptyset ) )
        = X0 )
      | ( setunionsingleton != $true ) ),
    inference(cnf_transformation,[status(thm)],[f933]) ).

thf(f933,plain,
    ( ( ! [X0: $i] :
          ( ( setunion @ ( setadjoin @ X0 @ emptyset ) )
          = X0 )
      | ( setunionsingleton != $true ) )
    & ( ( setunionsingleton = $true )
      | ( sK140
       != ( setunion @ ( setadjoin @ sK140 @ emptyset ) ) ) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK140])],[f931,f932]) ).

thf(f932,plain,
    ( ? [X1: $i] :
        ( ( setunion @ ( setadjoin @ X1 @ emptyset ) )
       != X1 )
   => ( sK140
     != ( setunion @ ( setadjoin @ sK140 @ emptyset ) ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f931,plain,
    ( ( ! [X0: $i] :
          ( ( setunion @ ( setadjoin @ X0 @ emptyset ) )
          = X0 )
      | ( setunionsingleton != $true ) )
    & ( ( setunionsingleton = $true )
      | ? [X1: $i] :
          ( ( setunion @ ( setadjoin @ X1 @ emptyset ) )
         != X1 ) ) ),
    inference(rectify,[status(thm)],[f930]) ).

thf(f930,plain,
    ( ( ! [X0: $i] :
          ( ( setunion @ ( setadjoin @ X0 @ emptyset ) )
          = X0 )
      | ( setunionsingleton != $true ) )
    & ( ( setunionsingleton = $true )
      | ? [X0: $i] :
          ( ( setunion @ ( setadjoin @ X0 @ emptyset ) )
         != X0 ) ) ),
    inference(nnf_transformation,[status(thm)],[f333]) ).

thf(f333,plain,
    ( ! [X0: $i] :
        ( ( setunion @ ( setadjoin @ X0 @ emptyset ) )
        = X0 )
  <=> ( setunionsingleton = $true ) ),
    inference(fool_elimination,[status(thm)],[f332]) ).

thf(f332,plain,
    ( setunionsingleton
    = ( ! [X0: $i] :
          ( ( setunion @ ( setadjoin @ X0 @ emptyset ) )
          = X0 ) ) ),
    inference(rectify,[status(thm)],[f157]) ).

thf(f157,axiom,
    ( setunionsingleton
    = ( ! [X1: $i] :
          ( ( setunion @ ( setadjoin @ X1 @ emptyset ) )
          = X1 ) ) ),
    file('/export/starexec/sandbox2/tmp/tmp.DxatUwJPum/DTF2THF_26966.p',setunionsingleton) ).

thf(f3194,plain,
    ( sK36
    = ( setunion @ ( setadjoin @ sK35 @ emptyset ) ) ),
    inference(superposition,[status(thm)],[f2815,f1615]) ).

thf(f1615,plain,
    ( ( setadjoin @ sK35 @ emptyset )
    = ( setadjoin @ sK36 @ emptyset ) ),
    inference(cnf_transformation,[status(thm)],[f749]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.11  % Problem  : SEU641^1 : TPTP v9.2.1. Released v3.7.0.
% 0.00/0.12  % Command  : /export/starexec/sandbox2/solver/bin/run_DT2H2X /export/starexec/sandbox2/benchmark/theBenchmark.p 300
% 0.13/0.32  % Computer : n001.cluster.edu
% 0.13/0.32  % Model    : x86_64 x86_64
% 0.13/0.32  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.32  % Memory   : 8042.1875MB
% 0.13/0.32  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.32  % CPULimit : 300
% 0.13/0.32  % WCLimit  : 300
% 0.13/0.32  % DateTime : Tue Feb 24 12:30:20 EST 2026
% 0.13/0.32  % CPUTime  : 
% 0.13/0.32  Running /export/starexec/sandbox2/solver/bin/run_DT2H2X /export/starexec/sandbox2/benchmark/theBenchmark.p 300
% 0.18/0.43  ---- Original DTF file ---
% 0.18/0.43  thf(spec,logic,$$dhol).
% 0.18/0.43  %------------------------------------------------------------------------------
% 0.18/0.43  % File     : SEU641^1 : TPTP v9.2.1. Released v3.7.0.
% 0.18/0.43  % Domain   : Set Theory
% 0.18/0.43  % Problem  : Ordered Pairs - Singletons
% 0.18/0.43  % Version  : Especial.
% 0.18/0.43  % English  : (! x:i.! y:i.setadjoin x emptyset = setadjoin y emptyset -> x = y)
% 0.18/0.43  
% 0.18/0.43  % Refs     : [Bro08] Brown (2008), Email to G. Sutcliffe
% 0.18/0.43  % Source   : [Bro08]
% 0.18/0.43  % Names    : ZFC143g [Bro08]
% 0.18/0.43  
% 0.18/0.43  % Status   : Theorem
% 0.18/0.43  % Rating   : 0.22 v9.1.0, 0.12 v9.0.0, 0.20 v8.2.0, 0.31 v8.1.0, 0.09 v7.5.0, 0.00 v7.4.0, 0.11 v7.2.0, 0.00 v7.1.0, 0.25 v7.0.0, 0.14 v6.4.0, 0.17 v6.3.0, 0.20 v6.2.0, 0.14 v6.1.0, 0.29 v5.5.0, 0.33 v5.4.0, 0.40 v5.2.0, 0.60 v5.1.0, 0.80 v5.0.0, 0.60 v4.1.0, 0.67 v3.7.0
% 0.18/0.43  % Syntax   : Number of formulae    :  346 ( 163 unt; 182 typ; 163 def)
% 0.18/0.43  %            Number of atoms       :  866 ( 231 equ;   0 cnn)
% 0.18/0.43  %            Maximal formula atoms :  159 (   5 avg)
% 0.18/0.43  %            Number of connectives : 1498 (  47   ~;   7   |;  37   &;1008   @)
% 0.18/0.43  %                                         (  14 <=>; 385  =>;   0  <=;   0 <~>)
% 0.18/0.43  %            Maximal formula depth :  161 (   2 avg)
% 0.18/0.43  %            Number of types       :    2 (   0 usr)
% 0.18/0.43  %            Number of type conns  :   78 (  78   >;   0   *;   0   +;   0  <<)
% 0.18/0.43  %            Number of symbols     :  185 ( 182 usr; 161 con; 0-2 aty)
% 0.18/0.43  %            Number of variables   :  477 (  41   ^; 398   !;  38   ?; 477   :)
% 0.18/0.43  % SPC      : TH0_THM_EQU_NAR
% 0.18/0.43  
% 0.18/0.43  % Comments : http://mathgate.info/detsetitem.php?id=197
% 0.18/0.43  %------------------------------------------------------------------------------
% 0.18/0.43  thf(in_type,type,
% 0.18/0.43      in: $i > $i > $o ).
% 0.18/0.43  
% 0.18/0.43  thf(exu_type,type,
% 0.18/0.43      exu: ( $i > $o ) > $o ).
% 0.18/0.43  
% 0.18/0.43  thf(exu,definition,
% 0.18/0.43      ( exu
% 0.18/0.43      = ( ^ [Xphi: $i > $o] :
% 0.18/0.43          ? [Xx: $i] :
% 0.18/0.43            ( ( Xphi @ Xx )
% 0.18/0.43            & ! [Xy: $i] :
% 0.18/0.43                ( ( Xphi @ Xy )
% 0.18/0.43               => ( Xx = Xy ) ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(setextAx_type,type,
% 0.18/0.43      setextAx: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(setextAx,definition,
% 0.18/0.43      ( setextAx
% 0.18/0.43      = ( ! [A: $i,B: $i] :
% 0.18/0.43            ( ! [Xx: $i] :
% 0.18/0.43                ( ( in @ Xx @ A )
% 0.18/0.43              <=> ( in @ Xx @ B ) )
% 0.18/0.43           => ( A = B ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(emptyset_type,type,
% 0.18/0.43      emptyset: $i ).
% 0.18/0.43  
% 0.18/0.43  thf(emptysetAx_type,type,
% 0.18/0.43      emptysetAx: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(emptysetAx,definition,
% 0.18/0.43      ( emptysetAx
% 0.18/0.43      = ( ! [Xx: $i] :
% 0.18/0.43            ~ ( in @ Xx @ emptyset ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(setadjoin_type,type,
% 0.18/0.43      setadjoin: $i > $i > $i ).
% 0.18/0.43  
% 0.18/0.43  thf(setadjoinAx_type,type,
% 0.18/0.43      setadjoinAx: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(setadjoinAx,definition,
% 0.18/0.43      ( setadjoinAx
% 0.18/0.43      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 0.18/0.43            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 0.18/0.43          <=> ( ( Xy = Xx )
% 0.18/0.43              | ( in @ Xy @ A ) ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(powerset_type,type,
% 0.18/0.43      powerset: $i > $i ).
% 0.18/0.43  
% 0.18/0.43  thf(powersetAx_type,type,
% 0.18/0.43      powersetAx: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(powersetAx,definition,
% 0.18/0.43      ( powersetAx
% 0.18/0.43      = ( ! [A: $i,B: $i] :
% 0.18/0.43            ( ( in @ B @ ( powerset @ A ) )
% 0.18/0.43          <=> ! [Xx: $i] :
% 0.18/0.43                ( ( in @ Xx @ B )
% 0.18/0.43               => ( in @ Xx @ A ) ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(setunion_type,type,
% 0.18/0.43      setunion: $i > $i ).
% 0.18/0.43  
% 0.18/0.43  thf(setunionAx_type,type,
% 0.18/0.43      setunionAx: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(setunionAx,definition,
% 0.18/0.43      ( setunionAx
% 0.18/0.43      = ( ! [A: $i,Xx: $i] :
% 0.18/0.43            ( ( in @ Xx @ ( setunion @ A ) )
% 0.18/0.43          <=> ? [B: $i] :
% 0.18/0.43                ( ( in @ Xx @ B )
% 0.18/0.43                & ( in @ B @ A ) ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(omega_type,type,
% 0.18/0.43      omega: $i ).
% 0.18/0.43  
% 0.18/0.43  thf(omega0Ax_type,type,
% 0.18/0.43      omega0Ax: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(omega0Ax,definition,
% 0.18/0.43      ( omega0Ax
% 0.18/0.43      = ( in @ emptyset @ omega ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(omegaSAx_type,type,
% 0.18/0.43      omegaSAx: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(omegaSAx,definition,
% 0.18/0.43      ( omegaSAx
% 0.18/0.43      = ( ! [Xx: $i] :
% 0.18/0.43            ( ( in @ Xx @ omega )
% 0.18/0.43           => ( in @ ( setadjoin @ Xx @ Xx ) @ omega ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(omegaIndAx_type,type,
% 0.18/0.43      omegaIndAx: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(omegaIndAx,definition,
% 0.18/0.43      ( omegaIndAx
% 0.18/0.43      = ( ! [A: $i] :
% 0.18/0.43            ( ( ( in @ emptyset @ A )
% 0.18/0.43              & ! [Xx: $i] :
% 0.18/0.43                  ( ( ( in @ Xx @ omega )
% 0.18/0.43                    & ( in @ Xx @ A ) )
% 0.18/0.43                 => ( in @ ( setadjoin @ Xx @ Xx ) @ A ) ) )
% 0.18/0.43           => ! [Xx: $i] :
% 0.18/0.43                ( ( in @ Xx @ omega )
% 0.18/0.43               => ( in @ Xx @ A ) ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(replAx_type,type,
% 0.18/0.43      replAx: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(replAx,definition,
% 0.18/0.43      ( replAx
% 0.18/0.43      = ( ! [Xphi: $i > $i > $o,A: $i] :
% 0.18/0.43            ( ! [Xx: $i] :
% 0.18/0.43                ( ( in @ Xx @ A )
% 0.18/0.43               => ( exu
% 0.18/0.43                  @ ^ [Xy: $i] : ( Xphi @ Xx @ Xy ) ) )
% 0.18/0.43           => ? [B: $i] :
% 0.18/0.43              ! [Xx: $i] :
% 0.18/0.43                ( ( in @ Xx @ B )
% 0.18/0.43              <=> ? [Xy: $i] :
% 0.18/0.43                    ( ( in @ Xy @ A )
% 0.18/0.43                    & ( Xphi @ Xy @ Xx ) ) ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(foundationAx_type,type,
% 0.18/0.43      foundationAx: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(foundationAx,definition,
% 0.18/0.43      ( foundationAx
% 0.18/0.43      = ( ! [A: $i] :
% 0.18/0.43            ( ? [Xx: $i] : ( in @ Xx @ A )
% 0.18/0.43           => ? [B: $i] :
% 0.18/0.43                ( ( in @ B @ A )
% 0.18/0.43                & ~ ? [Xx: $i] :
% 0.18/0.43                      ( ( in @ Xx @ B )
% 0.18/0.43                      & ( in @ Xx @ A ) ) ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(wellorderingAx_type,type,
% 0.18/0.43      wellorderingAx: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(wellorderingAx,definition,
% 0.18/0.43      ( wellorderingAx
% 0.18/0.43      = ( ! [A: $i] :
% 0.18/0.43          ? [B: $i] :
% 0.18/0.43            ( ! [C: $i] :
% 0.18/0.43                ( ( in @ C @ B )
% 0.18/0.43               => ! [Xx: $i] :
% 0.18/0.43                    ( ( in @ Xx @ C )
% 0.18/0.43                   => ( in @ Xx @ A ) ) )
% 0.18/0.43            & ! [Xx: $i,Xy: $i] :
% 0.18/0.43                ( ( ( in @ Xx @ A )
% 0.18/0.43                  & ( in @ Xy @ A ) )
% 0.18/0.43               => ( ! [C: $i] :
% 0.18/0.43                      ( ( in @ C @ B )
% 0.18/0.43                     => ( ( in @ Xx @ C )
% 0.18/0.43                      <=> ( in @ Xy @ C ) ) )
% 0.18/0.43                 => ( Xx = Xy ) ) )
% 0.18/0.43            & ! [C: $i,D: $i] :
% 0.18/0.43                ( ( ( in @ C @ B )
% 0.18/0.43                  & ( in @ D @ B ) )
% 0.18/0.43               => ( ! [Xx: $i] :
% 0.18/0.43                      ( ( in @ Xx @ C )
% 0.18/0.43                     => ( in @ Xx @ D ) )
% 0.18/0.43                  | ! [Xx: $i] :
% 0.18/0.43                      ( ( in @ Xx @ D )
% 0.18/0.43                     => ( in @ Xx @ C ) ) ) )
% 0.18/0.43            & ! [C: $i] :
% 0.18/0.43                ( ( ! [Xx: $i] :
% 0.18/0.43                      ( ( in @ Xx @ C )
% 0.18/0.43                     => ( in @ Xx @ A ) )
% 0.18/0.43                  & ? [Xx: $i] : ( in @ Xx @ C ) )
% 0.18/0.43               => ? [D: $i,Xx: $i] :
% 0.18/0.43                    ( ( in @ D @ B )
% 0.18/0.43                    & ( in @ Xx @ C )
% 0.18/0.43                    & ~ ? [Xy: $i] :
% 0.18/0.43                          ( ( in @ Xy @ D )
% 0.18/0.43                          & ( in @ Xy @ C ) )
% 0.18/0.43                    & ! [E: $i] :
% 0.18/0.43                        ( ( in @ E @ B )
% 0.18/0.43                       => ( ! [Xy: $i] :
% 0.18/0.43                              ( ( in @ Xy @ E )
% 0.18/0.43                             => ( in @ Xy @ D ) )
% 0.18/0.43                          | ( in @ Xx @ E ) ) ) ) ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(descr_type,type,
% 0.18/0.43      descr: ( $i > $o ) > $i ).
% 0.18/0.43  
% 0.18/0.43  thf(descrp_type,type,
% 0.18/0.43      descrp: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(descrp,definition,
% 0.18/0.43      ( descrp
% 0.18/0.43      = ( ! [Xphi: $i > $o] :
% 0.18/0.43            ( ( exu
% 0.18/0.43              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.18/0.43           => ( Xphi
% 0.18/0.43              @ ( descr
% 0.18/0.43                @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(dsetconstr_type,type,
% 0.18/0.43      dsetconstr: $i > ( $i > $o ) > $i ).
% 0.18/0.43  
% 0.18/0.43  thf(dsetconstrI_type,type,
% 0.18/0.43      dsetconstrI: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(dsetconstrI,definition,
% 0.18/0.43      ( dsetconstrI
% 0.18/0.43      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.18/0.43            ( ( in @ Xx @ A )
% 0.18/0.43           => ( ( Xphi @ Xx )
% 0.18/0.43             => ( in @ Xx
% 0.18/0.43                @ ( dsetconstr @ A
% 0.18/0.43                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(dsetconstrEL_type,type,
% 0.18/0.43      dsetconstrEL: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(dsetconstrEL,definition,
% 0.18/0.43      ( dsetconstrEL
% 0.18/0.43      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.18/0.43            ( ( in @ Xx
% 0.18/0.43              @ ( dsetconstr @ A
% 0.18/0.43                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 0.18/0.43           => ( in @ Xx @ A ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(dsetconstrER_type,type,
% 0.18/0.43      dsetconstrER: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(dsetconstrER,definition,
% 0.18/0.43      ( dsetconstrER
% 0.18/0.43      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.18/0.43            ( ( in @ Xx
% 0.18/0.43              @ ( dsetconstr @ A
% 0.18/0.43                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 0.18/0.43           => ( Xphi @ Xx ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(exuE1_type,type,
% 0.18/0.43      exuE1: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(exuE1,definition,
% 0.18/0.43      ( exuE1
% 0.18/0.43      = ( ! [Xphi: $i > $o] :
% 0.18/0.43            ( ( exu
% 0.18/0.43              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.18/0.43           => ? [Xx: $i] :
% 0.18/0.43                ( ( Xphi @ Xx )
% 0.18/0.43                & ! [Xy: $i] :
% 0.18/0.43                    ( ( Xphi @ Xy )
% 0.18/0.43                   => ( Xx = Xy ) ) ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(prop2set_type,type,
% 0.18/0.43      prop2set: $o > $i ).
% 0.18/0.43  
% 0.18/0.43  thf(prop2setE_type,type,
% 0.18/0.43      prop2setE: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(prop2setE,definition,
% 0.18/0.43      ( prop2setE
% 0.18/0.43      = ( ! [Xphi: $o,Xx: $i] :
% 0.18/0.43            ( ( in @ Xx @ ( prop2set @ Xphi ) )
% 0.18/0.43           => Xphi ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(emptysetE_type,type,
% 0.18/0.43      emptysetE: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(emptysetE,definition,
% 0.18/0.43      ( emptysetE
% 0.18/0.43      = ( ! [Xx: $i] :
% 0.18/0.43            ( ( in @ Xx @ emptyset )
% 0.18/0.43           => ! [Xphi: $o] : Xphi ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(emptysetimpfalse_type,type,
% 0.18/0.43      emptysetimpfalse: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(emptysetimpfalse,definition,
% 0.18/0.43      ( emptysetimpfalse
% 0.18/0.43      = ( ! [Xx: $i] :
% 0.18/0.43            ( ( in @ Xx @ emptyset )
% 0.18/0.43           => $false ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(notinemptyset_type,type,
% 0.18/0.43      notinemptyset: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(notinemptyset,definition,
% 0.18/0.43      ( notinemptyset
% 0.18/0.43      = ( ! [Xx: $i] :
% 0.18/0.43            ~ ( in @ Xx @ emptyset ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(exuE3e_type,type,
% 0.18/0.43      exuE3e: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(exuE3e,definition,
% 0.18/0.43      ( exuE3e
% 0.18/0.43      = ( ! [Xphi: $i > $o] :
% 0.18/0.43            ( ( exu
% 0.18/0.43              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.18/0.43           => ? [Xx: $i] : ( Xphi @ Xx ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(setext_type,type,
% 0.18/0.43      setext: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(setext,definition,
% 0.18/0.43      ( setext
% 0.18/0.43      = ( ! [A: $i,B: $i] :
% 0.18/0.43            ( ! [Xx: $i] :
% 0.18/0.43                ( ( in @ Xx @ A )
% 0.18/0.43               => ( in @ Xx @ B ) )
% 0.18/0.43           => ( ! [Xx: $i] :
% 0.18/0.43                  ( ( in @ Xx @ B )
% 0.18/0.43                 => ( in @ Xx @ A ) )
% 0.18/0.43             => ( A = B ) ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(emptyI_type,type,
% 0.18/0.43      emptyI: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(emptyI,definition,
% 0.18/0.43      ( emptyI
% 0.18/0.43      = ( ! [A: $i] :
% 0.18/0.43            ( ! [Xx: $i] :
% 0.18/0.43                ~ ( in @ Xx @ A )
% 0.18/0.43           => ( A = emptyset ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(noeltsimpempty_type,type,
% 0.18/0.43      noeltsimpempty: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(noeltsimpempty,definition,
% 0.18/0.43      ( noeltsimpempty
% 0.18/0.43      = ( ! [A: $i] :
% 0.18/0.43            ( ! [Xx: $i] :
% 0.18/0.43                ~ ( in @ Xx @ A )
% 0.18/0.43           => ( A = emptyset ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(setbeta_type,type,
% 0.18/0.43      setbeta: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(setbeta,definition,
% 0.18/0.43      ( setbeta
% 0.18/0.43      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.18/0.43            ( ( in @ Xx @ A )
% 0.18/0.43           => ( ( in @ Xx
% 0.18/0.43                @ ( dsetconstr @ A
% 0.18/0.43                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 0.18/0.43            <=> ( Xphi @ Xx ) ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(nonempty_type,type,
% 0.18/0.43      nonempty: $i > $o ).
% 0.18/0.43  
% 0.18/0.43  thf(nonempty,definition,
% 0.18/0.43      ( nonempty
% 0.18/0.43      = ( ^ [Xx: $i] : ( Xx != emptyset ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(nonemptyE1_type,type,
% 0.18/0.43      nonemptyE1: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(nonemptyE1,definition,
% 0.18/0.43      ( nonemptyE1
% 0.18/0.43      = ( ! [A: $i] :
% 0.18/0.43            ( ( nonempty @ A )
% 0.18/0.43           => ? [Xx: $i] : ( in @ Xx @ A ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(nonemptyI_type,type,
% 0.18/0.43      nonemptyI: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(nonemptyI,definition,
% 0.18/0.43      ( nonemptyI
% 0.18/0.43      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.18/0.43            ( ( in @ Xx @ A )
% 0.18/0.43           => ( ( Xphi @ Xx )
% 0.18/0.43             => ( nonempty
% 0.18/0.43                @ ( dsetconstr @ A
% 0.18/0.43                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(nonemptyI1_type,type,
% 0.18/0.43      nonemptyI1: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(nonemptyI1,definition,
% 0.18/0.43      ( nonemptyI1
% 0.18/0.43      = ( ! [A: $i] :
% 0.18/0.43            ( ? [Xx: $i] : ( in @ Xx @ A )
% 0.18/0.43           => ( nonempty @ A ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(setadjoinIL_type,type,
% 0.18/0.43      setadjoinIL: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(setadjoinIL,definition,
% 0.18/0.43      ( setadjoinIL
% 0.18/0.43      = ( ! [Xx: $i,Xy: $i] : ( in @ Xx @ ( setadjoin @ Xx @ Xy ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(emptyinunitempty_type,type,
% 0.18/0.43      emptyinunitempty: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(emptyinunitempty,definition,
% 0.18/0.43      ( emptyinunitempty
% 0.18/0.43      = ( in @ emptyset @ ( setadjoin @ emptyset @ emptyset ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(setadjoinIR_type,type,
% 0.18/0.43      setadjoinIR: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(setadjoinIR,definition,
% 0.18/0.43      ( setadjoinIR
% 0.18/0.43      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 0.18/0.43            ( ( in @ Xy @ A )
% 0.18/0.43           => ( in @ Xy @ ( setadjoin @ Xx @ A ) ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(setadjoinE_type,type,
% 0.18/0.43      setadjoinE: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(setadjoinE,definition,
% 0.18/0.43      ( setadjoinE
% 0.18/0.43      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 0.18/0.43            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 0.18/0.43           => ! [Xphi: $o] :
% 0.18/0.43                ( ( ( Xy = Xx )
% 0.18/0.43                 => Xphi )
% 0.18/0.43               => ( ( ( in @ Xy @ A )
% 0.18/0.43                   => Xphi )
% 0.18/0.43                 => Xphi ) ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(setadjoinOr_type,type,
% 0.18/0.43      setadjoinOr: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(setadjoinOr,definition,
% 0.18/0.43      ( setadjoinOr
% 0.18/0.43      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 0.18/0.43            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 0.18/0.43           => ( ( Xy = Xx )
% 0.18/0.43              | ( in @ Xy @ A ) ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(setoftrueEq_type,type,
% 0.18/0.43      setoftrueEq: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(setoftrueEq,definition,
% 0.18/0.43      ( setoftrueEq
% 0.18/0.43      = ( ! [A: $i] :
% 0.18/0.43            ( ( dsetconstr @ A
% 0.18/0.43              @ ^ [Xx: $i] : $true )
% 0.18/0.43            = A ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(powersetI_type,type,
% 0.18/0.43      powersetI: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(powersetI,definition,
% 0.18/0.43      ( powersetI
% 0.18/0.43      = ( ! [A: $i,B: $i] :
% 0.18/0.43            ( ! [Xx: $i] :
% 0.18/0.43                ( ( in @ Xx @ B )
% 0.18/0.43               => ( in @ Xx @ A ) )
% 0.18/0.43           => ( in @ B @ ( powerset @ A ) ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(emptyinPowerset_type,type,
% 0.18/0.43      emptyinPowerset: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(emptyinPowerset,definition,
% 0.18/0.43      ( emptyinPowerset
% 0.18/0.43      = ( ! [A: $i] : ( in @ emptyset @ ( powerset @ A ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(emptyInPowerset_type,type,
% 0.18/0.43      emptyInPowerset: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(emptyInPowerset,definition,
% 0.18/0.43      ( emptyInPowerset
% 0.18/0.43      = ( ! [A: $i] : ( in @ emptyset @ ( powerset @ A ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(powersetE_type,type,
% 0.18/0.43      powersetE: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(powersetE,definition,
% 0.18/0.43      ( powersetE
% 0.18/0.43      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.43            ( ( in @ B @ ( powerset @ A ) )
% 0.18/0.43           => ( ( in @ Xx @ B )
% 0.18/0.43             => ( in @ Xx @ A ) ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(setunionI_type,type,
% 0.18/0.43      setunionI: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(setunionI,definition,
% 0.18/0.43      ( setunionI
% 0.18/0.43      = ( ! [A: $i,Xx: $i,B: $i] :
% 0.18/0.43            ( ( in @ Xx @ B )
% 0.18/0.43           => ( ( in @ B @ A )
% 0.18/0.43             => ( in @ Xx @ ( setunion @ A ) ) ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(setunionE_type,type,
% 0.18/0.43      setunionE: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(setunionE,definition,
% 0.18/0.43      ( setunionE
% 0.18/0.43      = ( ! [A: $i,Xx: $i] :
% 0.18/0.43            ( ( in @ Xx @ ( setunion @ A ) )
% 0.18/0.43           => ! [Xphi: $o] :
% 0.18/0.43                ( ! [B: $i] :
% 0.18/0.43                    ( ( in @ Xx @ B )
% 0.18/0.43                   => ( ( in @ B @ A )
% 0.18/0.43                     => Xphi ) )
% 0.18/0.43               => Xphi ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(subPowSU_type,type,
% 0.18/0.43      subPowSU: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(subPowSU,definition,
% 0.18/0.43      ( subPowSU
% 0.18/0.43      = ( ! [A: $i,Xx: $i] :
% 0.18/0.43            ( ( in @ Xx @ A )
% 0.18/0.43           => ( in @ Xx @ ( powerset @ ( setunion @ A ) ) ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(exuE2_type,type,
% 0.18/0.43      exuE2: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(exuE2,definition,
% 0.18/0.43      ( exuE2
% 0.18/0.43      = ( ! [Xphi: $i > $o] :
% 0.18/0.43            ( ( exu
% 0.18/0.43              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.18/0.43           => ? [Xx: $i] :
% 0.18/0.43              ! [Xy: $i] :
% 0.18/0.43                ( ( Xphi @ Xy )
% 0.18/0.43              <=> ( Xy = Xx ) ) ) ) ) ).
% 0.18/0.43  
% 0.18/0.43  thf(nonemptyImpWitness_type,type,
% 0.18/0.43      nonemptyImpWitness: $o ).
% 0.18/0.43  
% 0.18/0.43  thf(nonemptyImpWitness,definition,
% 0.18/0.43      ( nonemptyImpWitness
% 0.18/0.43      = ( ! [A: $i] :
% 0.18/0.43            ( ( nonempty @ A )
% 0.18/0.44           => ? [Xx: $i] :
% 0.18/0.44                ( ( in @ Xx @ A )
% 0.18/0.44                & $true ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(uniqinunit_type,type,
% 0.18/0.44      uniqinunit: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(uniqinunit,definition,
% 0.18/0.44      ( uniqinunit
% 0.18/0.44      = ( ! [Xx: $i,Xy: $i] :
% 0.18/0.44            ( ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) )
% 0.18/0.44           => ( Xx = Xy ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(notinsingleton_type,type,
% 0.18/0.44      notinsingleton: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(notinsingleton,definition,
% 0.18/0.44      ( notinsingleton
% 0.18/0.44      = ( ! [Xx: $i,Xy: $i] :
% 0.18/0.44            ( ( Xx != Xy )
% 0.18/0.44           => ~ ( in @ Xy @ ( setadjoin @ Xx @ emptyset ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(eqinunit_type,type,
% 0.18/0.44      eqinunit: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(eqinunit,definition,
% 0.18/0.44      ( eqinunit
% 0.18/0.44      = ( ! [Xx: $i,Xy: $i] :
% 0.18/0.44            ( ( Xx = Xy )
% 0.18/0.44           => ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(singletonsswitch_type,type,
% 0.18/0.44      singletonsswitch: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(singletonsswitch,definition,
% 0.18/0.44      ( singletonsswitch
% 0.18/0.44      = ( ! [Xx: $i,Xy: $i] :
% 0.18/0.44            ( ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) )
% 0.18/0.44           => ( in @ Xy @ ( setadjoin @ Xx @ emptyset ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(upairsetE_type,type,
% 0.18/0.44      upairsetE: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(upairsetE,definition,
% 0.18/0.44      ( upairsetE
% 0.18/0.44      = ( ! [Xx: $i,Xy: $i,Xz: $i] :
% 0.18/0.44            ( ( in @ Xz @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) )
% 0.18/0.44           => ( ( Xz = Xx )
% 0.18/0.44              | ( Xz = Xy ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(upairsetIL_type,type,
% 0.18/0.44      upairsetIL: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(upairsetIL,definition,
% 0.18/0.44      ( upairsetIL
% 0.18/0.44      = ( ! [Xx: $i,Xy: $i] : ( in @ Xx @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(upairsetIR_type,type,
% 0.18/0.44      upairsetIR: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(upairsetIR,definition,
% 0.18/0.44      ( upairsetIR
% 0.18/0.44      = ( ! [Xx: $i,Xy: $i] : ( in @ Xy @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(emptyE1_type,type,
% 0.18/0.44      emptyE1: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(emptyE1,definition,
% 0.18/0.44      ( emptyE1
% 0.18/0.44      = ( ! [A: $i,Xphi: $i > $o] :
% 0.18/0.44            ( ? [Xx: $i] :
% 0.18/0.44                ( ( in @ Xx @ A )
% 0.18/0.44                & ( Xphi @ Xx ) )
% 0.18/0.44           => ( ( ( dsetconstr @ A
% 0.18/0.44                  @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.18/0.44                = emptyset )
% 0.18/0.44             => $false ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(vacuousDall_type,type,
% 0.18/0.44      vacuousDall: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(vacuousDall,definition,
% 0.18/0.44      ( vacuousDall
% 0.18/0.44      = ( ! [Xphi: $i > $o,Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ emptyset )
% 0.18/0.44           => ( Xphi @ Xx ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(quantDeMorgan1_type,type,
% 0.18/0.44      quantDeMorgan1: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(quantDeMorgan1,definition,
% 0.18/0.44      ( quantDeMorgan1
% 0.18/0.44      = ( ! [A: $i,Xphi: $i > $o] :
% 0.18/0.44            ( ~ ! [Xx: $i] :
% 0.18/0.44                  ( ( in @ Xx @ A )
% 0.18/0.44                 => ( Xphi @ Xx ) )
% 0.18/0.44           => ? [Xx: $i] :
% 0.18/0.44                ( ( in @ Xx @ A )
% 0.18/0.44                & ~ ( Xphi @ Xx ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(quantDeMorgan2_type,type,
% 0.18/0.44      quantDeMorgan2: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(quantDeMorgan2,definition,
% 0.18/0.44      ( quantDeMorgan2
% 0.18/0.44      = ( ! [A: $i,Xphi: $i > $o] :
% 0.18/0.44            ( ! [Xx: $i] :
% 0.18/0.44                ( ( in @ Xx @ A )
% 0.18/0.44               => ~ ( Xphi @ Xx ) )
% 0.18/0.44           => ~ ? [Xx: $i] :
% 0.18/0.44                  ( ( in @ Xx @ A )
% 0.18/0.44                  & ( Xphi @ Xx ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(quantDeMorgan3_type,type,
% 0.18/0.44      quantDeMorgan3: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(quantDeMorgan3,definition,
% 0.18/0.44      ( quantDeMorgan3
% 0.18/0.44      = ( ! [A: $i,Xphi: $i > $o] :
% 0.18/0.44            ( ~ ? [Xx: $i] :
% 0.18/0.44                  ( ( in @ Xx @ A )
% 0.18/0.44                  & ( Xphi @ Xx ) )
% 0.18/0.44           => ! [Xx: $i] :
% 0.18/0.44                ( ( in @ Xx @ A )
% 0.18/0.44               => ~ ( Xphi @ Xx ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(quantDeMorgan4_type,type,
% 0.18/0.44      quantDeMorgan4: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(quantDeMorgan4,definition,
% 0.18/0.44      ( quantDeMorgan4
% 0.18/0.44      = ( ! [A: $i,Xphi: $i > $o] :
% 0.18/0.44            ( ? [Xx: $i] :
% 0.18/0.44                ( ( in @ Xx @ A )
% 0.18/0.44                & ~ ( Xphi @ Xx ) )
% 0.18/0.44           => ~ ! [Xx: $i] :
% 0.18/0.44                  ( ( in @ Xx @ A )
% 0.18/0.44                 => ( Xphi @ Xx ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(prop2setI_type,type,
% 0.18/0.44      prop2setI: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(prop2setI,definition,
% 0.18/0.44      ( prop2setI
% 0.18/0.44      = ( ! [Xphi: $o] :
% 0.18/0.44            ( Xphi
% 0.18/0.44           => ( in @ emptyset @ ( prop2set @ Xphi ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(set2prop_type,type,
% 0.18/0.44      set2prop: $i > $o ).
% 0.18/0.44  
% 0.18/0.44  thf(prop2set2propI_type,type,
% 0.18/0.44      prop2set2propI: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(prop2set2propI,definition,
% 0.18/0.44      ( prop2set2propI
% 0.18/0.44      = ( ! [Xphi: $o] :
% 0.18/0.44            ( Xphi
% 0.18/0.44           => ( set2prop @ ( prop2set @ Xphi ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(notdexE_type,type,
% 0.18/0.44      notdexE: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(notdexE,definition,
% 0.18/0.44      ( notdexE
% 0.18/0.44      = ( ! [A: $i,Xphi: $i > $o] :
% 0.18/0.44            ( ~ ? [Xx: $i] :
% 0.18/0.44                  ( ( in @ Xx @ A )
% 0.18/0.44                  & ( Xphi @ Xx ) )
% 0.18/0.44           => ! [Xx: $i] :
% 0.18/0.44                ( ( in @ Xx @ A )
% 0.18/0.44               => ~ ( Xphi @ Xx ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(notdallE_type,type,
% 0.18/0.44      notdallE: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(notdallE,definition,
% 0.18/0.44      ( notdallE
% 0.18/0.44      = ( ! [A: $i,Xphi: $i > $o] :
% 0.18/0.44            ( ~ ! [Xx: $i] :
% 0.18/0.44                  ( ( in @ Xx @ A )
% 0.18/0.44                 => ( Xphi @ Xx ) )
% 0.18/0.44           => ? [Xx: $i] :
% 0.18/0.44                ( ( in @ Xx @ A )
% 0.18/0.44                & ~ ( Xphi @ Xx ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(exuI1_type,type,
% 0.18/0.44      exuI1: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(exuI1,definition,
% 0.18/0.44      ( exuI1
% 0.18/0.44      = ( ! [Xphi: $i > $o] :
% 0.18/0.44            ( ? [Xx: $i] :
% 0.18/0.44                ( ( Xphi @ Xx )
% 0.18/0.44                & ! [Xy: $i] :
% 0.18/0.44                    ( ( Xphi @ Xy )
% 0.18/0.44                   => ( Xx = Xy ) ) )
% 0.18/0.44           => ( exu
% 0.18/0.44              @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(exuI3_type,type,
% 0.18/0.44      exuI3: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(exuI3,definition,
% 0.18/0.44      ( exuI3
% 0.18/0.44      = ( ! [Xphi: $i > $o] :
% 0.18/0.44            ( ? [Xx: $i] : ( Xphi @ Xx )
% 0.18/0.44           => ( ! [Xx: $i,Xy: $i] :
% 0.18/0.44                  ( ( Xphi @ Xx )
% 0.18/0.44                 => ( ( Xphi @ Xy )
% 0.18/0.44                   => ( Xx = Xy ) ) )
% 0.18/0.44             => ( exu
% 0.18/0.44                @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(exuI2_type,type,
% 0.18/0.44      exuI2: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(exuI2,definition,
% 0.18/0.44      ( exuI2
% 0.18/0.44      = ( ! [Xphi: $i > $o] :
% 0.18/0.44            ( ? [Xx: $i] :
% 0.18/0.44              ! [Xy: $i] :
% 0.18/0.44                ( ( Xphi @ Xy )
% 0.18/0.44              <=> ( Xy = Xx ) )
% 0.18/0.44           => ( exu
% 0.18/0.44              @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(inCongP_type,type,
% 0.18/0.44      inCongP: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(inCongP,definition,
% 0.18/0.44      ( inCongP
% 0.18/0.44      = ( ! [A: $i,B: $i] :
% 0.18/0.44            ( ( A = B )
% 0.18/0.44           => ! [Xx: $i,Xy: $i] :
% 0.18/0.44                ( ( Xx = Xy )
% 0.18/0.44               => ( ( in @ Xx @ A )
% 0.18/0.44                 => ( in @ Xy @ B ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(in__Cong_type,type,
% 0.18/0.44      in__Cong: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(in__Cong,definition,
% 0.18/0.44      ( in__Cong
% 0.18/0.44      = ( ! [A: $i,B: $i] :
% 0.18/0.44            ( ( A = B )
% 0.18/0.44           => ! [Xx: $i,Xy: $i] :
% 0.18/0.44                ( ( Xx = Xy )
% 0.18/0.44               => ( ( in @ Xx @ A )
% 0.18/0.44                <=> ( in @ Xy @ B ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(exuE3u_type,type,
% 0.18/0.44      exuE3u: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(exuE3u,definition,
% 0.18/0.44      ( exuE3u
% 0.18/0.44      = ( ! [Xphi: $i > $o] :
% 0.18/0.44            ( ( exu
% 0.18/0.44              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.18/0.44           => ! [Xx: $i,Xy: $i] :
% 0.18/0.44                ( ( Xphi @ Xx )
% 0.18/0.44               => ( ( Xphi @ Xy )
% 0.18/0.44                 => ( Xx = Xy ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(exu__Cong_type,type,
% 0.18/0.44      exu__Cong: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(exu__Cong,definition,
% 0.18/0.44      ( exu__Cong
% 0.18/0.44      = ( ! [Xphi: $i > $o,Xpsi: $i > $o] :
% 0.18/0.44            ( ! [Xx: $i,Xy: $i] :
% 0.18/0.44                ( ( Xx = Xy )
% 0.18/0.44               => ( ( Xphi @ Xx )
% 0.18/0.44                <=> ( Xpsi @ Xy ) ) )
% 0.18/0.44           => ( ( exu
% 0.18/0.44                @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.18/0.44            <=> ( exu
% 0.18/0.44                @ ^ [Xx: $i] : ( Xpsi @ Xx ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(emptyset__Cong_type,type,
% 0.18/0.44      emptyset__Cong: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(emptyset__Cong,definition,
% 0.18/0.44      ( emptyset__Cong
% 0.18/0.44      = ( emptyset = emptyset ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(setadjoin__Cong_type,type,
% 0.18/0.44      setadjoin__Cong: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(setadjoin__Cong,definition,
% 0.18/0.44      ( setadjoin__Cong
% 0.18/0.44      = ( ! [Xx: $i,Xy: $i] :
% 0.18/0.44            ( ( Xx = Xy )
% 0.18/0.44           => ! [Xz: $i,Xu: $i] :
% 0.18/0.44                ( ( Xz = Xu )
% 0.18/0.44               => ( ( setadjoin @ Xx @ Xz )
% 0.18/0.44                  = ( setadjoin @ Xy @ Xu ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(powerset__Cong_type,type,
% 0.18/0.44      powerset__Cong: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(powerset__Cong,definition,
% 0.18/0.44      ( powerset__Cong
% 0.18/0.44      = ( ! [A: $i,B: $i] :
% 0.18/0.44            ( ( A = B )
% 0.18/0.44           => ( ( powerset @ A )
% 0.18/0.44              = ( powerset @ B ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(setunion__Cong_type,type,
% 0.18/0.44      setunion__Cong: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(setunion__Cong,definition,
% 0.18/0.44      ( setunion__Cong
% 0.18/0.44      = ( ! [A: $i,B: $i] :
% 0.18/0.44            ( ( A = B )
% 0.18/0.44           => ( ( setunion @ A )
% 0.18/0.44              = ( setunion @ B ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(omega__Cong_type,type,
% 0.18/0.44      omega__Cong: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(omega__Cong,definition,
% 0.18/0.44      ( omega__Cong
% 0.18/0.44      = ( omega = omega ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(exuEu_type,type,
% 0.18/0.44      exuEu: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(exuEu,definition,
% 0.18/0.44      ( exuEu
% 0.18/0.44      = ( ! [Xphi: $i > $o] :
% 0.18/0.44            ( ( exu
% 0.18/0.44              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.18/0.44           => ! [Xx: $i,Xy: $i] :
% 0.18/0.44                ( ( Xphi @ Xx )
% 0.18/0.44               => ( ( Xphi @ Xy )
% 0.18/0.44                 => ( Xx = Xy ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(descr__Cong_type,type,
% 0.18/0.44      descr__Cong: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(descr__Cong,definition,
% 0.18/0.44      ( descr__Cong
% 0.18/0.44      = ( ! [Xphi: $i > $o,Xpsi: $i > $o] :
% 0.18/0.44            ( ! [Xx: $i,Xy: $i] :
% 0.18/0.44                ( ( Xx = Xy )
% 0.18/0.44               => ( ( Xphi @ Xx )
% 0.18/0.44                <=> ( Xpsi @ Xy ) ) )
% 0.18/0.44           => ( ( exu
% 0.18/0.44                @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.18/0.44             => ( ( exu
% 0.18/0.44                  @ ^ [Xx: $i] : ( Xpsi @ Xx ) )
% 0.18/0.44               => ( ( descr
% 0.18/0.44                    @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.18/0.44                  = ( descr
% 0.18/0.44                    @ ^ [Xx: $i] : ( Xpsi @ Xx ) ) ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(dsetconstr__Cong_type,type,
% 0.18/0.44      dsetconstr__Cong: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(dsetconstr__Cong,definition,
% 0.18/0.44      ( dsetconstr__Cong
% 0.18/0.44      = ( ! [A: $i,B: $i] :
% 0.18/0.44            ( ( A = B )
% 0.18/0.44           => ! [Xphi: $i > $o,Xpsi: $i > $o] :
% 0.18/0.44                ( ! [Xx: $i] :
% 0.18/0.44                    ( ( in @ Xx @ A )
% 0.18/0.44                   => ! [Xy: $i] :
% 0.18/0.44                        ( ( in @ Xy @ B )
% 0.18/0.44                       => ( ( Xx = Xy )
% 0.18/0.44                         => ( ( Xphi @ Xx )
% 0.18/0.44                          <=> ( Xpsi @ Xy ) ) ) ) )
% 0.18/0.44               => ( ( dsetconstr @ A
% 0.18/0.44                    @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.18/0.44                  = ( dsetconstr @ B
% 0.18/0.44                    @ ^ [Xx: $i] : ( Xpsi @ Xx ) ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(subset_type,type,
% 0.18/0.44      subset: $i > $i > $o ).
% 0.18/0.44  
% 0.18/0.44  thf(disjoint_type,type,
% 0.18/0.44      disjoint: $i > $i > $o ).
% 0.18/0.44  
% 0.18/0.44  thf(setsmeet_type,type,
% 0.18/0.44      setsmeet: $i > $i > $o ).
% 0.18/0.44  
% 0.18/0.44  thf(subsetI1_type,type,
% 0.18/0.44      subsetI1: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(subsetI1,definition,
% 0.18/0.44      ( subsetI1
% 0.18/0.44      = ( ! [A: $i,B: $i] :
% 0.18/0.44            ( ! [Xx: $i] :
% 0.18/0.44                ( ( in @ Xx @ A )
% 0.18/0.44               => ( in @ Xx @ B ) )
% 0.18/0.44           => ( subset @ A @ B ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(eqimpsubset2_type,type,
% 0.18/0.44      eqimpsubset2: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(eqimpsubset2,definition,
% 0.18/0.44      ( eqimpsubset2
% 0.18/0.44      = ( ! [A: $i,B: $i] :
% 0.18/0.44            ( ( A = B )
% 0.18/0.44           => ( subset @ B @ A ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(eqimpsubset1_type,type,
% 0.18/0.44      eqimpsubset1: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(eqimpsubset1,definition,
% 0.18/0.44      ( eqimpsubset1
% 0.18/0.44      = ( ! [A: $i,B: $i] :
% 0.18/0.44            ( ( A = B )
% 0.18/0.44           => ( subset @ A @ B ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(subsetI2_type,type,
% 0.18/0.44      subsetI2: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(subsetI2,definition,
% 0.18/0.44      ( subsetI2
% 0.18/0.44      = ( ! [A: $i,B: $i] :
% 0.18/0.44            ( ! [Xx: $i] :
% 0.18/0.44                ( ( in @ Xx @ A )
% 0.18/0.44               => ( in @ Xx @ B ) )
% 0.18/0.44           => ( subset @ A @ B ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(emptysetsubset_type,type,
% 0.18/0.44      emptysetsubset: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(emptysetsubset,definition,
% 0.18/0.44      ( emptysetsubset
% 0.18/0.44      = ( ! [A: $i] : ( subset @ emptyset @ A ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(subsetE_type,type,
% 0.18/0.44      subsetE: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(subsetE,definition,
% 0.18/0.44      ( subsetE
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ( subset @ A @ B )
% 0.18/0.44           => ( ( in @ Xx @ A )
% 0.18/0.44             => ( in @ Xx @ B ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(subsetE2_type,type,
% 0.18/0.44      subsetE2: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(subsetE2,definition,
% 0.18/0.44      ( subsetE2
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ( subset @ A @ B )
% 0.18/0.44           => ( ~ ( in @ Xx @ B )
% 0.18/0.44             => ~ ( in @ Xx @ A ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(notsubsetI_type,type,
% 0.18/0.44      notsubsetI: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(notsubsetI,definition,
% 0.18/0.44      ( notsubsetI
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ A )
% 0.18/0.44           => ( ~ ( in @ Xx @ B )
% 0.18/0.44             => ~ ( subset @ A @ B ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(notequalI1_type,type,
% 0.18/0.44      notequalI1: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(notequalI1,definition,
% 0.18/0.44      ( notequalI1
% 0.18/0.44      = ( ! [A: $i,B: $i] :
% 0.18/0.44            ( ~ ( subset @ A @ B )
% 0.18/0.44           => ( A != B ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(notequalI2_type,type,
% 0.18/0.44      notequalI2: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(notequalI2,definition,
% 0.18/0.44      ( notequalI2
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ A )
% 0.18/0.44           => ( ~ ( in @ Xx @ B )
% 0.18/0.44             => ( A != B ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(subsetRefl_type,type,
% 0.18/0.44      subsetRefl: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(subsetRefl,definition,
% 0.18/0.44      ( subsetRefl
% 0.18/0.44      = ( ! [A: $i] : ( subset @ A @ A ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(subsetTrans_type,type,
% 0.18/0.44      subsetTrans: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(subsetTrans,definition,
% 0.18/0.44      ( subsetTrans
% 0.18/0.44      = ( ! [A: $i,B: $i,C: $i] :
% 0.18/0.44            ( ( subset @ A @ B )
% 0.18/0.44           => ( ( subset @ B @ C )
% 0.18/0.44             => ( subset @ A @ C ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(setadjoinSub_type,type,
% 0.18/0.44      setadjoinSub: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(setadjoinSub,definition,
% 0.18/0.44      ( setadjoinSub
% 0.18/0.44      = ( ! [Xx: $i,A: $i] : ( subset @ A @ ( setadjoin @ Xx @ A ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(setadjoinSub2_type,type,
% 0.18/0.44      setadjoinSub2: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(setadjoinSub2,definition,
% 0.18/0.44      ( setadjoinSub2
% 0.18/0.44      = ( ! [A: $i,Xx: $i,B: $i] :
% 0.18/0.44            ( ( subset @ A @ B )
% 0.18/0.44           => ( subset @ A @ ( setadjoin @ Xx @ B ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(subset2powerset_type,type,
% 0.18/0.44      subset2powerset: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(subset2powerset,definition,
% 0.18/0.44      ( subset2powerset
% 0.18/0.44      = ( ! [A: $i,B: $i] :
% 0.18/0.44            ( ( subset @ A @ B )
% 0.18/0.44           => ( in @ A @ ( powerset @ B ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(setextsub_type,type,
% 0.18/0.44      setextsub: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(setextsub,definition,
% 0.18/0.44      ( setextsub
% 0.18/0.44      = ( ! [A: $i,B: $i] :
% 0.18/0.44            ( ( subset @ A @ B )
% 0.18/0.44           => ( ( subset @ B @ A )
% 0.18/0.44             => ( A = B ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(subsetemptysetimpeq_type,type,
% 0.18/0.44      subsetemptysetimpeq: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(subsetemptysetimpeq,definition,
% 0.18/0.44      ( subsetemptysetimpeq
% 0.18/0.44      = ( ! [A: $i] :
% 0.18/0.44            ( ( subset @ A @ emptyset )
% 0.18/0.44           => ( A = emptyset ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(powersetI1_type,type,
% 0.18/0.44      powersetI1: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(powersetI1,definition,
% 0.18/0.44      ( powersetI1
% 0.18/0.44      = ( ! [A: $i,B: $i] :
% 0.18/0.44            ( ( subset @ B @ A )
% 0.18/0.44           => ( in @ B @ ( powerset @ A ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(powersetE1_type,type,
% 0.18/0.44      powersetE1: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(powersetE1,definition,
% 0.18/0.44      ( powersetE1
% 0.18/0.44      = ( ! [A: $i,B: $i] :
% 0.18/0.44            ( ( in @ B @ ( powerset @ A ) )
% 0.18/0.44           => ( subset @ B @ A ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(inPowerset_type,type,
% 0.18/0.44      inPowerset: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(inPowerset,definition,
% 0.18/0.44      ( inPowerset
% 0.18/0.44      = ( ! [A: $i] : ( in @ A @ ( powerset @ A ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(powersetsubset_type,type,
% 0.18/0.44      powersetsubset: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(powersetsubset,definition,
% 0.18/0.44      ( powersetsubset
% 0.18/0.44      = ( ! [A: $i,B: $i] :
% 0.18/0.44            ( ( subset @ A @ B )
% 0.18/0.44           => ( subset @ ( powerset @ A ) @ ( powerset @ B ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(sepInPowerset_type,type,
% 0.18/0.44      sepInPowerset: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(sepInPowerset,definition,
% 0.18/0.44      ( sepInPowerset
% 0.18/0.44      = ( ! [A: $i,Xphi: $i > $o] :
% 0.18/0.44            ( in
% 0.18/0.44            @ ( dsetconstr @ A
% 0.18/0.44              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.18/0.44            @ ( powerset @ A ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(sepSubset_type,type,
% 0.18/0.44      sepSubset: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(sepSubset,definition,
% 0.18/0.44      ( sepSubset
% 0.18/0.44      = ( ! [A: $i,Xphi: $i > $o] :
% 0.18/0.44            ( subset
% 0.18/0.44            @ ( dsetconstr @ A
% 0.18/0.44              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.18/0.44            @ A ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(binunion_type,type,
% 0.18/0.44      binunion: $i > $i > $i ).
% 0.18/0.44  
% 0.18/0.44  thf(binunionIL_type,type,
% 0.18/0.44      binunionIL: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(binunionIL,definition,
% 0.18/0.44      ( binunionIL
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ A )
% 0.18/0.44           => ( in @ Xx @ ( binunion @ A @ B ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(upairset2IR_type,type,
% 0.18/0.44      upairset2IR: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(upairset2IR,definition,
% 0.18/0.44      ( upairset2IR
% 0.18/0.44      = ( ! [Xx: $i,Xy: $i] : ( in @ Xy @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(binunionIR_type,type,
% 0.18/0.44      binunionIR: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(binunionIR,definition,
% 0.18/0.44      ( binunionIR
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ B )
% 0.18/0.44           => ( in @ Xx @ ( binunion @ A @ B ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(binunionEcases_type,type,
% 0.18/0.44      binunionEcases: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(binunionEcases,definition,
% 0.18/0.44      ( binunionEcases
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i,Xphi: $o] :
% 0.18/0.44            ( ( in @ Xx @ ( binunion @ A @ B ) )
% 0.18/0.44           => ( ( ( in @ Xx @ A )
% 0.18/0.44               => Xphi )
% 0.18/0.44             => ( ( ( in @ Xx @ B )
% 0.18/0.44                 => Xphi )
% 0.18/0.44               => Xphi ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(binunionE_type,type,
% 0.18/0.44      binunionE: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(binunionE,definition,
% 0.18/0.44      ( binunionE
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ ( binunion @ A @ B ) )
% 0.18/0.44           => ( ( in @ Xx @ A )
% 0.18/0.44              | ( in @ Xx @ B ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(binunionLsub_type,type,
% 0.18/0.44      binunionLsub: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(binunionLsub,definition,
% 0.18/0.44      ( binunionLsub
% 0.18/0.44      = ( ! [A: $i,B: $i] : ( subset @ A @ ( binunion @ A @ B ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(binunionRsub_type,type,
% 0.18/0.44      binunionRsub: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(binunionRsub,definition,
% 0.18/0.44      ( binunionRsub
% 0.18/0.44      = ( ! [A: $i,B: $i] : ( subset @ B @ ( binunion @ A @ B ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(binintersect_type,type,
% 0.18/0.44      binintersect: $i > $i > $i ).
% 0.18/0.44  
% 0.18/0.44  thf(binintersectI_type,type,
% 0.18/0.44      binintersectI: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(binintersectI,definition,
% 0.18/0.44      ( binintersectI
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ A )
% 0.18/0.44           => ( ( in @ Xx @ B )
% 0.18/0.44             => ( in @ Xx @ ( binintersect @ A @ B ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(binintersectSubset5_type,type,
% 0.18/0.44      binintersectSubset5: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(binintersectSubset5,definition,
% 0.18/0.44      ( binintersectSubset5
% 0.18/0.44      = ( ! [A: $i,B: $i,C: $i] :
% 0.18/0.44            ( ( subset @ C @ A )
% 0.18/0.44           => ( ( subset @ C @ B )
% 0.18/0.44             => ( subset @ C @ ( binintersect @ A @ B ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(binintersectEL_type,type,
% 0.18/0.44      binintersectEL: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(binintersectEL,definition,
% 0.18/0.44      ( binintersectEL
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ ( binintersect @ A @ B ) )
% 0.18/0.44           => ( in @ Xx @ A ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(binintersectLsub_type,type,
% 0.18/0.44      binintersectLsub: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(binintersectLsub,definition,
% 0.18/0.44      ( binintersectLsub
% 0.18/0.44      = ( ! [A: $i,B: $i] : ( subset @ ( binintersect @ A @ B ) @ A ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(binintersectSubset2_type,type,
% 0.18/0.44      binintersectSubset2: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(binintersectSubset2,definition,
% 0.18/0.44      ( binintersectSubset2
% 0.18/0.44      = ( ! [A: $i,B: $i] :
% 0.18/0.44            ( ( subset @ A @ B )
% 0.18/0.44           => ( ( binintersect @ A @ B )
% 0.18/0.44              = A ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(binintersectSubset3_type,type,
% 0.18/0.44      binintersectSubset3: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(binintersectSubset3,definition,
% 0.18/0.44      ( binintersectSubset3
% 0.18/0.44      = ( ! [A: $i,B: $i] :
% 0.18/0.44            ( ( ( binintersect @ A @ B )
% 0.18/0.44              = B )
% 0.18/0.44           => ( subset @ B @ A ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(binintersectER_type,type,
% 0.18/0.44      binintersectER: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(binintersectER,definition,
% 0.18/0.44      ( binintersectER
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ ( binintersect @ A @ B ) )
% 0.18/0.44           => ( in @ Xx @ B ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(disjointsetsI1_type,type,
% 0.18/0.44      disjointsetsI1: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(disjointsetsI1,definition,
% 0.18/0.44      ( disjointsetsI1
% 0.18/0.44      = ( ! [A: $i,B: $i] :
% 0.18/0.44            ( ~ ? [Xx: $i] :
% 0.18/0.44                  ( ( in @ Xx @ A )
% 0.18/0.44                  & ( in @ Xx @ B ) )
% 0.18/0.44           => ( ( binintersect @ A @ B )
% 0.18/0.44              = emptyset ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(binintersectRsub_type,type,
% 0.18/0.44      binintersectRsub: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(binintersectRsub,definition,
% 0.18/0.44      ( binintersectRsub
% 0.18/0.44      = ( ! [A: $i,B: $i] : ( subset @ ( binintersect @ A @ B ) @ B ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(binintersectSubset4_type,type,
% 0.18/0.44      binintersectSubset4: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(binintersectSubset4,definition,
% 0.18/0.44      ( binintersectSubset4
% 0.18/0.44      = ( ! [A: $i,B: $i] :
% 0.18/0.44            ( ( subset @ B @ A )
% 0.18/0.44           => ( ( binintersect @ A @ B )
% 0.18/0.44              = B ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(binintersectSubset1_type,type,
% 0.18/0.44      binintersectSubset1: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(binintersectSubset1,definition,
% 0.18/0.44      ( binintersectSubset1
% 0.18/0.44      = ( ! [A: $i,B: $i] :
% 0.18/0.44            ( ( ( binintersect @ A @ B )
% 0.18/0.44              = A )
% 0.18/0.44           => ( subset @ A @ B ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(bs114d_type,type,
% 0.18/0.44      bs114d: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(bs114d,definition,
% 0.18/0.44      ( bs114d
% 0.18/0.44      = ( ! [A: $i,B: $i,C: $i] :
% 0.18/0.44            ( ( binintersect @ A @ ( binunion @ B @ C ) )
% 0.18/0.44            = ( binunion @ ( binintersect @ A @ B ) @ ( binintersect @ A @ C ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(regular_type,type,
% 0.18/0.44      regular: $i > $o ).
% 0.18/0.44  
% 0.18/0.44  thf(setminus_type,type,
% 0.18/0.44      setminus: $i > $i > $i ).
% 0.18/0.44  
% 0.18/0.44  thf(setminusI_type,type,
% 0.18/0.44      setminusI: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(setminusI,definition,
% 0.18/0.44      ( setminusI
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ A )
% 0.18/0.44           => ( ~ ( in @ Xx @ B )
% 0.18/0.44             => ( in @ Xx @ ( setminus @ A @ B ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(setminusEL_type,type,
% 0.18/0.44      setminusEL: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(setminusEL,definition,
% 0.18/0.44      ( setminusEL
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ ( setminus @ A @ B ) )
% 0.18/0.44           => ( in @ Xx @ A ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(setminusER_type,type,
% 0.18/0.44      setminusER: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(setminusER,definition,
% 0.18/0.44      ( setminusER
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ ( setminus @ A @ B ) )
% 0.18/0.44           => ~ ( in @ Xx @ B ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(setminusSubset2_type,type,
% 0.18/0.44      setminusSubset2: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(setminusSubset2,definition,
% 0.18/0.44      ( setminusSubset2
% 0.18/0.44      = ( ! [A: $i,B: $i] :
% 0.18/0.44            ( ( subset @ A @ B )
% 0.18/0.44           => ( ( setminus @ A @ B )
% 0.18/0.44              = emptyset ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(setminusERneg_type,type,
% 0.18/0.44      setminusERneg: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(setminusERneg,definition,
% 0.18/0.44      ( setminusERneg
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ~ ( in @ Xx @ ( setminus @ A @ B ) )
% 0.18/0.44           => ( ( in @ Xx @ A )
% 0.18/0.44             => ( in @ Xx @ B ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(setminusELneg_type,type,
% 0.18/0.44      setminusELneg: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(setminusELneg,definition,
% 0.18/0.44      ( setminusELneg
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ~ ( in @ Xx @ ( setminus @ A @ B ) )
% 0.18/0.44           => ( ~ ( in @ Xx @ B )
% 0.18/0.44             => ~ ( in @ Xx @ A ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(setminusILneg_type,type,
% 0.18/0.44      setminusILneg: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(setminusILneg,definition,
% 0.18/0.44      ( setminusILneg
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ~ ( in @ Xx @ A )
% 0.18/0.44           => ~ ( in @ Xx @ ( setminus @ A @ B ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(setminusIRneg_type,type,
% 0.18/0.44      setminusIRneg: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(setminusIRneg,definition,
% 0.18/0.44      ( setminusIRneg
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ B )
% 0.18/0.44           => ~ ( in @ Xx @ ( setminus @ A @ B ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(setminusLsub_type,type,
% 0.18/0.44      setminusLsub: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(setminusLsub,definition,
% 0.18/0.44      ( setminusLsub
% 0.18/0.44      = ( ! [A: $i,B: $i] : ( subset @ ( setminus @ A @ B ) @ A ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(setminusSubset1_type,type,
% 0.18/0.44      setminusSubset1: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(setminusSubset1,definition,
% 0.18/0.44      ( setminusSubset1
% 0.18/0.44      = ( ! [A: $i,B: $i] :
% 0.18/0.44            ( ( ( setminus @ A @ B )
% 0.18/0.44              = emptyset )
% 0.18/0.44           => ( subset @ A @ B ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(symdiff_type,type,
% 0.18/0.44      symdiff: $i > $i > $i ).
% 0.18/0.44  
% 0.18/0.44  thf(symdiffE_type,type,
% 0.18/0.44      symdiffE: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(symdiffE,definition,
% 0.18/0.44      ( symdiffE
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ ( symdiff @ A @ B ) )
% 0.18/0.44           => ! [Xphi: $o] :
% 0.18/0.44                ( ( ( in @ Xx @ A )
% 0.18/0.44                 => ( ~ ( in @ Xx @ B )
% 0.18/0.44                   => Xphi ) )
% 0.18/0.44               => ( ( ~ ( in @ Xx @ A )
% 0.18/0.44                   => ( ( in @ Xx @ B )
% 0.18/0.44                     => Xphi ) )
% 0.18/0.44                 => Xphi ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(symdiffI1_type,type,
% 0.18/0.44      symdiffI1: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(symdiffI1,definition,
% 0.18/0.44      ( symdiffI1
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ A )
% 0.18/0.44           => ( ~ ( in @ Xx @ B )
% 0.18/0.44             => ( in @ Xx @ ( symdiff @ A @ B ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(symdiffI2_type,type,
% 0.18/0.44      symdiffI2: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(symdiffI2,definition,
% 0.18/0.44      ( symdiffI2
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ~ ( in @ Xx @ A )
% 0.18/0.44           => ( ( in @ Xx @ B )
% 0.18/0.44             => ( in @ Xx @ ( symdiff @ A @ B ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(symdiffIneg1_type,type,
% 0.18/0.44      symdiffIneg1: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(symdiffIneg1,definition,
% 0.18/0.44      ( symdiffIneg1
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ A )
% 0.18/0.44           => ( ( in @ Xx @ B )
% 0.18/0.44             => ~ ( in @ Xx @ ( symdiff @ A @ B ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(symdiffIneg2_type,type,
% 0.18/0.44      symdiffIneg2: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(symdiffIneg2,definition,
% 0.18/0.44      ( symdiffIneg2
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ~ ( in @ Xx @ A )
% 0.18/0.44           => ( ~ ( in @ Xx @ B )
% 0.18/0.44             => ~ ( in @ Xx @ ( symdiff @ A @ B ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(iskpair_type,type,
% 0.18/0.44      iskpair: $i > $o ).
% 0.18/0.44  
% 0.18/0.44  thf(iskpair,definition,
% 0.18/0.44      ( iskpair
% 0.18/0.44      = ( ^ [A: $i] :
% 0.18/0.44          ? [Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ ( setunion @ A ) )
% 0.18/0.44            & ? [Xy: $i] :
% 0.18/0.44                ( ( in @ Xy @ ( setunion @ A ) )
% 0.18/0.44                & ( A
% 0.18/0.44                  = ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(secondinupair_type,type,
% 0.18/0.44      secondinupair: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(secondinupair,definition,
% 0.18/0.44      ( secondinupair
% 0.18/0.44      = ( ! [Xx: $i,Xy: $i] : ( in @ Xy @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(setukpairIL_type,type,
% 0.18/0.44      setukpairIL: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(setukpairIL,definition,
% 0.18/0.44      ( setukpairIL
% 0.18/0.44      = ( ! [Xx: $i,Xy: $i] : ( in @ Xx @ ( setunion @ ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(setukpairIR_type,type,
% 0.18/0.44      setukpairIR: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(setukpairIR,definition,
% 0.18/0.44      ( setukpairIR
% 0.18/0.44      = ( ! [Xx: $i,Xy: $i] : ( in @ Xy @ ( setunion @ ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(kpairiskpair_type,type,
% 0.18/0.44      kpairiskpair: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(kpairiskpair,definition,
% 0.18/0.44      ( kpairiskpair
% 0.18/0.44      = ( ! [Xx: $i,Xy: $i] : ( iskpair @ ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(kpair_type,type,
% 0.18/0.44      kpair: $i > $i > $i ).
% 0.18/0.44  
% 0.18/0.44  thf(kpair,definition,
% 0.18/0.44      ( kpair
% 0.18/0.44      = ( ^ [Xx: $i,Xy: $i] : ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(kpairp_type,type,
% 0.18/0.44      kpairp: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(kpairp,definition,
% 0.18/0.44      ( kpairp
% 0.18/0.44      = ( ! [Xx: $i,Xy: $i] : ( iskpair @ ( kpair @ Xx @ Xy ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(cartprod_type,type,
% 0.18/0.44      cartprod: $i > $i > $i ).
% 0.18/0.44  
% 0.18/0.44  thf(singletonsubset_type,type,
% 0.18/0.44      singletonsubset: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(singletonsubset,definition,
% 0.18/0.44      ( singletonsubset
% 0.18/0.44      = ( ! [A: $i,Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ A )
% 0.18/0.44           => ( subset @ ( setadjoin @ Xx @ emptyset ) @ A ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(singletoninpowerset_type,type,
% 0.18/0.44      singletoninpowerset: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(singletoninpowerset,definition,
% 0.18/0.44      ( singletoninpowerset
% 0.18/0.44      = ( ! [A: $i,Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ A )
% 0.18/0.44           => ( in @ ( setadjoin @ Xx @ emptyset ) @ ( powerset @ A ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(singletoninpowunion_type,type,
% 0.18/0.44      singletoninpowunion: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(singletoninpowunion,definition,
% 0.18/0.44      ( singletoninpowunion
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ A )
% 0.18/0.44           => ( in @ ( setadjoin @ Xx @ emptyset ) @ ( powerset @ ( binunion @ A @ B ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(upairset2E_type,type,
% 0.18/0.44      upairset2E: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(upairset2E,definition,
% 0.18/0.44      ( upairset2E
% 0.18/0.44      = ( ! [Xx: $i,Xy: $i,Xz: $i] :
% 0.18/0.44            ( ( in @ Xz @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) )
% 0.18/0.44           => ( ( Xz = Xx )
% 0.18/0.44              | ( Xz = Xy ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(upairsubunion_type,type,
% 0.18/0.44      upairsubunion: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(upairsubunion,definition,
% 0.18/0.44      ( upairsubunion
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ A )
% 0.18/0.44           => ! [Xy: $i] :
% 0.18/0.44                ( ( in @ Xy @ B )
% 0.18/0.44               => ( subset @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ ( binunion @ A @ B ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(upairinpowunion_type,type,
% 0.18/0.44      upairinpowunion: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(upairinpowunion,definition,
% 0.18/0.44      ( upairinpowunion
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ A )
% 0.18/0.44           => ! [Xy: $i] :
% 0.18/0.44                ( ( in @ Xy @ B )
% 0.18/0.44               => ( in @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ ( powerset @ ( binunion @ A @ B ) ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(ubforcartprodlem1_type,type,
% 0.18/0.44      ubforcartprodlem1: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(ubforcartprodlem1,definition,
% 0.18/0.44      ( ubforcartprodlem1
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ A )
% 0.18/0.44           => ! [Xy: $i] :
% 0.18/0.44                ( ( in @ Xy @ B )
% 0.18/0.44               => ( subset @ ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) @ ( powerset @ ( binunion @ A @ B ) ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(ubforcartprodlem2_type,type,
% 0.18/0.44      ubforcartprodlem2: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(ubforcartprodlem2,definition,
% 0.18/0.44      ( ubforcartprodlem2
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ A )
% 0.18/0.44           => ! [Xy: $i] :
% 0.18/0.44                ( ( in @ Xy @ B )
% 0.18/0.44               => ( in @ ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) @ ( powerset @ ( powerset @ ( binunion @ A @ B ) ) ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(ubforcartprodlem3_type,type,
% 0.18/0.44      ubforcartprodlem3: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(ubforcartprodlem3,definition,
% 0.18/0.44      ( ubforcartprodlem3
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ A )
% 0.18/0.44           => ! [Xy: $i] :
% 0.18/0.44                ( ( in @ Xy @ B )
% 0.18/0.44               => ( in @ ( kpair @ Xx @ Xy ) @ ( powerset @ ( powerset @ ( binunion @ A @ B ) ) ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(cartprodpairin_type,type,
% 0.18/0.44      cartprodpairin: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(cartprodpairin,definition,
% 0.18/0.44      ( cartprodpairin
% 0.18/0.44      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ A )
% 0.18/0.44           => ! [Xy: $i] :
% 0.18/0.44                ( ( in @ Xy @ B )
% 0.18/0.44               => ( in @ ( kpair @ Xx @ Xy ) @ ( cartprod @ A @ B ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(cartprodmempair1_type,type,
% 0.18/0.44      cartprodmempair1: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(cartprodmempair1,definition,
% 0.18/0.44      ( cartprodmempair1
% 0.18/0.44      = ( ! [A: $i,B: $i,Xu: $i] :
% 0.18/0.44            ( ( in @ Xu @ ( cartprod @ A @ B ) )
% 0.18/0.44           => ? [Xx: $i] :
% 0.18/0.44                ( ( in @ Xx @ A )
% 0.18/0.44                & ? [Xy: $i] :
% 0.18/0.44                    ( ( in @ Xy @ B )
% 0.18/0.44                    & ( Xu
% 0.18/0.44                      = ( kpair @ Xx @ Xy ) ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(cartprodmempair_type,type,
% 0.18/0.44      cartprodmempair: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(cartprodmempair,definition,
% 0.18/0.44      ( cartprodmempair
% 0.18/0.44      = ( ! [A: $i,B: $i,Xu: $i] :
% 0.18/0.44            ( ( in @ Xu @ ( cartprod @ A @ B ) )
% 0.18/0.44           => ( iskpair @ Xu ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(setunionE2_type,type,
% 0.18/0.44      setunionE2: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(setunionE2,definition,
% 0.18/0.44      ( setunionE2
% 0.18/0.44      = ( ! [A: $i,Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ ( setunion @ A ) )
% 0.18/0.44           => ? [X: $i] :
% 0.18/0.44                ( ( in @ X @ A )
% 0.18/0.44                & ( in @ Xx @ X ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(setunionsingleton1_type,type,
% 0.18/0.44      setunionsingleton1: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(setunionsingleton1,definition,
% 0.18/0.44      ( setunionsingleton1
% 0.18/0.44      = ( ! [A: $i] : ( subset @ ( setunion @ ( setadjoin @ A @ emptyset ) ) @ A ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(setunionsingleton2_type,type,
% 0.18/0.44      setunionsingleton2: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(setunionsingleton2,definition,
% 0.18/0.44      ( setunionsingleton2
% 0.18/0.44      = ( ! [A: $i] : ( subset @ A @ ( setunion @ ( setadjoin @ A @ emptyset ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(setunionsingleton_type,type,
% 0.18/0.44      setunionsingleton: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(setunionsingleton,definition,
% 0.18/0.44      ( setunionsingleton
% 0.18/0.44      = ( ! [Xx: $i] :
% 0.18/0.44            ( ( setunion @ ( setadjoin @ Xx @ emptyset ) )
% 0.18/0.44            = Xx ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(singleton_type,type,
% 0.18/0.44      singleton: $i > $o ).
% 0.18/0.44  
% 0.18/0.44  thf(singleton,definition,
% 0.18/0.44      ( singleton
% 0.18/0.44      = ( ^ [A: $i] :
% 0.18/0.44          ? [Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ A )
% 0.18/0.44            & ( A
% 0.18/0.44              = ( setadjoin @ Xx @ emptyset ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(singletonprop_type,type,
% 0.18/0.44      singletonprop: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(singletonprop,definition,
% 0.18/0.44      ( singletonprop
% 0.18/0.44      = ( ! [A: $i,Xphi: $i > $o] :
% 0.18/0.44            ( ! [Xx: $i] :
% 0.18/0.44                ( ( in @ Xx @ A )
% 0.18/0.44               => ! [Xy: $i] :
% 0.18/0.44                    ( ( in @ Xy @ A )
% 0.18/0.44                   => ( ( Xphi @ Xx )
% 0.18/0.44                     => ( ( Xphi @ Xy )
% 0.18/0.44                       => ( Xx = Xy ) ) ) ) )
% 0.18/0.44           => ( ? [Xx: $i] :
% 0.18/0.44                  ( ( in @ Xx @ A )
% 0.18/0.44                  & ( Xphi @ Xx ) )
% 0.18/0.44             => ( singleton
% 0.18/0.44                @ ( dsetconstr @ A
% 0.18/0.44                  @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(ex1_type,type,
% 0.18/0.44      ex1: $i > ( $i > $o ) > $o ).
% 0.18/0.44  
% 0.18/0.44  thf(ex1,definition,
% 0.18/0.44      ( ex1
% 0.18/0.44      = ( ^ [A: $i,Xphi: $i > $o] :
% 0.18/0.44            ( singleton
% 0.18/0.44            @ ( dsetconstr @ A
% 0.18/0.44              @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(ex1E1_type,type,
% 0.18/0.44      ex1E1: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(ex1E1,definition,
% 0.18/0.44      ( ex1E1
% 0.18/0.44      = ( ! [A: $i,Xphi: $i > $o] :
% 0.18/0.44            ( ( ex1 @ A
% 0.18/0.44              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.18/0.44           => ? [Xx: $i] :
% 0.18/0.44                ( ( in @ Xx @ A )
% 0.18/0.44                & ( Xphi @ Xx ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(ex1I_type,type,
% 0.18/0.44      ex1I: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(ex1I,definition,
% 0.18/0.44      ( ex1I
% 0.18/0.44      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.18/0.44            ( ( in @ Xx @ A )
% 0.18/0.44           => ( ( Xphi @ Xx )
% 0.18/0.44             => ( ! [Xy: $i] :
% 0.18/0.44                    ( ( in @ Xy @ A )
% 0.18/0.44                   => ( ( Xphi @ Xy )
% 0.18/0.44                     => ( Xy = Xx ) ) )
% 0.18/0.44               => ( ex1 @ A
% 0.18/0.44                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(ex1I2_type,type,
% 0.18/0.44      ex1I2: $o ).
% 0.18/0.44  
% 0.18/0.44  thf(ex1I2,definition,
% 0.18/0.44      ( ex1I2
% 0.18/0.44      = ( ! [A: $i,Xphi: $i > $o] :
% 0.18/0.44            ( ! [Xx: $i] :
% 0.18/0.44                ( ( in @ Xx @ A )
% 0.18/0.44               => ! [Xy: $i] :
% 0.18/0.44                    ( ( in @ Xy @ A )
% 0.18/0.44                   => ( ( Xphi @ Xx )
% 0.18/0.44                     => ( ( Xphi @ Xy )
% 0.18/0.44                       => ( Xx = Xy ) ) ) ) )
% 0.18/0.44           => ( ? [Xx: $i] :
% 0.18/0.44                  ( ( in @ Xx @ A )
% 0.18/0.44                  & ( Xphi @ Xx ) )
% 0.18/0.44             => ( ex1 @ A
% 0.18/0.44                @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  thf(singletonsuniq,conjecture,
% 0.18/0.44      ( setextAx
% 0.18/0.44     => ( emptysetAx
% 0.18/0.44       => ( setadjoinAx
% 0.18/0.44         => ( powersetAx
% 0.18/0.44           => ( setunionAx
% 0.18/0.44             => ( omega0Ax
% 0.18/0.44               => ( omegaSAx
% 0.18/0.44                 => ( omegaIndAx
% 0.18/0.44                   => ( replAx
% 0.18/0.44                     => ( foundationAx
% 0.18/0.44                       => ( wellorderingAx
% 0.18/0.44                         => ( descrp
% 0.18/0.44                           => ( dsetconstrI
% 0.18/0.44                             => ( dsetconstrEL
% 0.18/0.44                               => ( dsetconstrER
% 0.18/0.44                                 => ( exuE1
% 0.18/0.44                                   => ( prop2setE
% 0.18/0.44                                     => ( emptysetE
% 0.18/0.44                                       => ( emptysetimpfalse
% 0.18/0.44                                         => ( notinemptyset
% 0.18/0.44                                           => ( exuE3e
% 0.18/0.44                                             => ( setext
% 0.18/0.44                                               => ( emptyI
% 0.18/0.44                                                 => ( noeltsimpempty
% 0.18/0.44                                                   => ( setbeta
% 0.18/0.44                                                     => ( nonemptyE1
% 0.18/0.44                                                       => ( nonemptyI
% 0.18/0.44                                                         => ( nonemptyI1
% 0.18/0.44                                                           => ( setadjoinIL
% 0.18/0.44                                                             => ( emptyinunitempty
% 0.18/0.44                                                               => ( setadjoinIR
% 0.18/0.44                                                                 => ( setadjoinE
% 0.18/0.44                                                                   => ( setadjoinOr
% 0.18/0.44                                                                     => ( setoftrueEq
% 0.18/0.44                                                                       => ( powersetI
% 0.18/0.44                                                                         => ( emptyinPowerset
% 0.18/0.44                                                                           => ( emptyInPowerset
% 0.18/0.44                                                                             => ( powersetE
% 0.18/0.44                                                                               => ( setunionI
% 0.18/0.44                                                                                 => ( setunionE
% 0.18/0.44                                                                                   => ( subPowSU
% 0.18/0.44                                                                                     => ( exuE2
% 0.18/0.44                                                                                       => ( nonemptyImpWitness
% 0.18/0.44                                                                                         => ( uniqinunit
% 0.18/0.44                                                                                           => ( notinsingleton
% 0.18/0.44                                                                                             => ( eqinunit
% 0.18/0.44                                                                                               => ( singletonsswitch
% 0.18/0.44                                                                                                 => ( upairsetE
% 0.18/0.44                                                                                                   => ( upairsetIL
% 0.18/0.44                                                                                                     => ( upairsetIR
% 0.18/0.44                                                                                                       => ( emptyE1
% 0.18/0.44                                                                                                         => ( vacuousDall
% 0.18/0.44                                                                                                           => ( quantDeMorgan1
% 0.18/0.44                                                                                                             => ( quantDeMorgan2
% 0.18/0.44                                                                                                               => ( quantDeMorgan3
% 0.18/0.44                                                                                                                 => ( quantDeMorgan4
% 0.18/0.44                                                                                                                   => ( prop2setI
% 0.18/0.44                                                                                                                     => ( prop2set2propI
% 0.18/0.44                                                                                                                       => ( notdexE
% 0.18/0.44                                                                                                                         => ( notdallE
% 0.18/0.44                                                                                                                           => ( exuI1
% 0.18/0.44                                                                                                                             => ( exuI3
% 0.18/0.44                                                                                                                               => ( exuI2
% 0.18/0.44                                                                                                                                 => ( inCongP
% 0.18/0.44                                                                                                                                   => ( in__Cong
% 0.18/0.44                                                                                                                                     => ( exuE3u
% 0.18/0.44                                                                                                                                       => ( exu__Cong
% 0.18/0.44                                                                                                                                         => ( emptyset__Cong
% 0.18/0.44                                                                                                                                           => ( setadjoin__Cong
% 0.18/0.44                                                                                                                                             => ( powerset__Cong
% 0.18/0.44                                                                                                                                               => ( setunion__Cong
% 0.18/0.44                                                                                                                                                 => ( omega__Cong
% 0.18/0.44                                                                                                                                                   => ( exuEu
% 0.18/0.44                                                                                                                                                     => ( descr__Cong
% 0.18/0.44                                                                                                                                                       => ( dsetconstr__Cong
% 0.18/0.44                                                                                                                                                         => ( subsetI1
% 0.18/0.44                                                                                                                                                           => ( eqimpsubset2
% 0.18/0.44                                                                                                                                                             => ( eqimpsubset1
% 0.18/0.44                                                                                                                                                               => ( subsetI2
% 0.18/0.44                                                                                                                                                                 => ( emptysetsubset
% 0.18/0.44                                                                                                                                                                   => ( subsetE
% 0.18/0.44                                                                                                                                                                     => ( subsetE2
% 0.18/0.44                                                                                                                                                                       => ( notsubsetI
% 0.18/0.44                                                                                                                                                                         => ( notequalI1
% 0.18/0.44                                                                                                                                                                           => ( notequalI2
% 0.18/0.44                                                                                                                                                                             => ( subsetRefl
% 0.18/0.44                                                                                                                                                                               => ( subsetTrans
% 0.18/0.44                                                                                                                                                                                 => ( setadjoinSub
% 0.18/0.44                                                                                                                                                                                   => ( setadjoinSub2
% 0.18/0.44                                                                                                                                                                                     => ( subset2powerset
% 0.18/0.44                                                                                                                                                                                       => ( setextsub
% 0.18/0.44                                                                                                                                                                                         => ( subsetemptysetimpeq
% 0.18/0.44                                                                                                                                                                                           => ( powersetI1
% 0.18/0.44                                                                                                                                                                                             => ( powersetE1
% 0.18/0.44                                                                                                                                                                                               => ( inPowerset
% 0.18/0.44                                                                                                                                                                                                 => ( powersetsubset
% 0.18/0.44                                                                                                                                                                                                   => ( sepInPowerset
% 0.18/0.44                                                                                                                                                                                                     => ( sepSubset
% 0.18/0.44                                                                                                                                                                                                       => ( binunionIL
% 0.18/0.44                                                                                                                                                                                                         => ( upairset2IR
% 0.18/0.44                                                                                                                                                                                                           => ( binunionIR
% 0.18/0.44                                                                                                                                                                                                             => ( binunionEcases
% 0.18/0.44                                                                                                                                                                                                               => ( binunionE
% 0.18/0.44                                                                                                                                                                                                                 => ( binunionLsub
% 0.18/0.44                                                                                                                                                                                                                   => ( binunionRsub
% 0.18/0.44                                                                                                                                                                                                                     => ( binintersectI
% 0.18/0.44                                                                                                                                                                                                                       => ( binintersectSubset5
% 0.18/0.44                                                                                                                                                                                                                         => ( binintersectEL
% 0.18/0.44                                                                                                                                                                                                                           => ( binintersectLsub
% 0.18/0.44                                                                                                                                                                                                                             => ( binintersectSubset2
% 0.18/0.44                                                                                                                                                                                                                               => ( binintersectSubset3
% 0.18/0.44                                                                                                                                                                                                                                 => ( binintersectER
% 0.18/0.44                                                                                                                                                                                                                                   => ( disjointsetsI1
% 0.18/0.44                                                                                                                                                                                                                                     => ( binintersectRsub
% 0.18/0.44                                                                                                                                                                                                                                       => ( binintersectSubset4
% 0.18/0.44                                                                                                                                                                                                                                         => ( binintersectSubset1
% 0.18/0.44                                                                                                                                                                                                                                           => ( bs114d
% 0.18/0.44                                                                                                                                                                                                                                             => ( setminusI
% 0.18/0.44                                                                                                                                                                                                                                               => ( setminusEL
% 0.18/0.44                                                                                                                                                                                                                                                 => ( setminusER
% 0.18/0.44                                                                                                                                                                                                                                                   => ( setminusSubset2
% 0.18/0.44                                                                                                                                                                                                                                                     => ( setminusERneg
% 0.18/0.44                                                                                                                                                                                                                                                       => ( setminusELneg
% 0.18/0.44                                                                                                                                                                                                                                                         => ( setminusILneg
% 0.18/0.44                                                                                                                                                                                                                                                           => ( setminusIRneg
% 0.18/0.44                                                                                                                                                                                                                                                             => ( setminusLsub
% 0.18/0.44                                                                                                                                                                                                                                                               => ( setminusSubset1
% 0.18/0.44                                                                                                                                                                                                                                                                 => ( symdiffE
% 0.18/0.44                                                                                                                                                                                                                                                                   => ( symdiffI1
% 0.18/0.44                                                                                                                                                                                                                                                                     => ( symdiffI2
% 0.18/0.44                                                                                                                                                                                                                                                                       => ( symdiffIneg1
% 0.18/0.44                                                                                                                                                                                                                                                                         => ( symdiffIneg2
% 0.18/0.44                                                                                                                                                                                                                                                                           => ( secondinupair
% 0.18/0.44                                                                                                                                                                                                                                                                             => ( setukpairIL
% 0.18/0.44                                                                                                                                                                                                                                                                               => ( setukpairIR
% 0.18/0.44                                                                                                                                                                                                                                                                                 => ( kpairiskpair
% 0.18/0.44                                                                                                                                                                                                                                                                                   => ( kpairp
% 0.18/0.44                                                                                                                                                                                                                                                                                     => ( singletonsubset
% 0.18/0.44                                                                                                                                                                                                                                                                                       => ( singletoninpowerset
% 0.18/0.44                                                                                                                                                                                                                                                                                         => ( singletoninpowunion
% 0.18/0.44                                                                                                                                                                                                                                                                                           => ( upairset2E
% 0.18/0.44                                                                                                                                                                                                                                                                                             => ( upairsubunion
% 0.18/0.44                                                                                                                                                                                                                                                                                               => ( upairinpowunion
% 0.18/0.44                                                                                                                                                                                                                                                                                                 => ( ubforcartprodlem1
% 0.18/0.44                                                                                                                                                                                                                                                                                                   => ( ubforcartprodlem2
% 0.18/0.44                                                                                                                                                                                                                                                                                                     => ( ubforcartprodlem3
% 0.18/0.44                                                                                                                                                                                                                                                                                                       => ( cartprodpairin
% 0.18/0.44                                                                                                                                                                                                                                                                                                         => ( cartprodmempair1
% 0.18/0.44                                                                                                                                                                                                                                                                                                           => ( cartprodmempair
% 0.18/0.44                                                                                                                                                                                                                                                                                                             => ( setunionE2
% 0.18/0.44                                                                                                                                                                                                                                                                                                               => ( setunionsingleton1
% 0.18/0.44                                                                                                                                                                                                                                                                                                                 => ( setunionsingleton2
% 0.18/0.44                                                                                                                                                                                                                                                                                                                   => ( setunionsingleton
% 0.18/0.44                                                                                                                                                                                                                                                                                                                     => ( singletonprop
% 0.18/0.44                                                                                                                                                                                                                                                                                                                       => ( ex1E1
% 0.18/0.44                                                                                                                                                                                                                                                                                                                         => ( ex1I
% 0.18/0.44                                                                                                                                                                                                                                                                                                                           => ( ex1I2
% 0.18/0.44                                                                                                                                                                                                                                                                                                                             => ! [Xx: $i,Xy: $i] :
% 0.18/0.44                                                                                                                                                                                                                                                                                                                                  ( ( ( setadjoin @ Xx @ emptyset )
% 0.18/0.44                                                                                                                                                                                                                                                                                                                                    = ( setadjoin @ Xy @ emptyset ) )
% 0.18/0.44                                                                                                                                                                                                                                                                                                                                 => ( Xx = Xy ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ).
% 0.18/0.44  
% 0.18/0.44  %------------------------------------------------------------------------------
% 0.18/0.44  ------------------------
% 2.28/1.45  ---- Embedded in THF ---
% 2.28/1.45  %%% This output was generated by embedproblem, version 1.9.5 (library version 1.9).
% 2.28/1.45  %%% Generated on Tue Feb 24 12:30:21 EST 2026
% 2.28/1.45  %%% using '$$dhol' embedding, version 1.3.0.
% 2.28/1.45  %%% Logic specification used:
% 2.28/1.45  %%% thf(spec, logic, $$dhol).
% 2.28/1.45  
% 2.28/1.45  % SZS output start ListOfTHF for /export/starexec/sandbox2/tmp/tmp.DxatUwJPum/DTF2DTF26966.p
% See solution above
% 2.28/1.46  ------------------------
% 2.28/1.47  ---- Cleaned THF ---
% 2.28/1.47  thf(in_type,type,
% 2.28/1.47      in: $i > $i > $o ).
% 2.28/1.47  
% 2.28/1.47  thf(exu_type,type,
% 2.28/1.47      exu: ( $i > $o ) > $o ).
% 2.28/1.47  
% 2.28/1.47  thf(exu,definition,
% 2.28/1.47      ( exu
% 2.28/1.47      = ( ^ [Xphi: $i > $o] :
% 2.28/1.47          ? [Xx: $i] :
% 2.28/1.47            ( ( Xphi @ Xx )
% 2.28/1.47            & ! [Xy: $i] :
% 2.28/1.47                ( ( Xphi @ Xy )
% 2.28/1.47               => ( Xx = Xy ) ) ) ) ) ).
% 2.28/1.47  
% 2.28/1.47  thf(setextAx_type,type,
% 2.28/1.47      setextAx: $o ).
% 2.28/1.47  
% 2.28/1.47  thf(setextAx,definition,
% 2.28/1.47      ( setextAx
% 2.28/1.47      = ( ! [A: $i,B: $i] :
% 2.28/1.47            ( ! [Xx: $i] :
% 2.28/1.47                ( ( in @ Xx @ A )
% 2.28/1.47              <=> ( in @ Xx @ B ) )
% 2.28/1.47           => ( A = B ) ) ) ) ).
% 2.28/1.47  
% 2.28/1.47  thf(emptyset_type,type,
% 2.28/1.47      emptyset: $i ).
% 2.28/1.47  
% 2.28/1.47  thf(emptysetAx_type,type,
% 2.28/1.47      emptysetAx: $o ).
% 2.28/1.47  
% 2.28/1.47  thf(emptysetAx,definition,
% 2.28/1.47      ( emptysetAx
% 2.28/1.47      = ( ! [Xx: $i] :
% 2.28/1.47            ~ ( in @ Xx @ emptyset ) ) ) ).
% 2.28/1.47  
% 2.28/1.47  thf(setadjoin_type,type,
% 2.28/1.47      setadjoin: $i > $i > $i ).
% 2.28/1.47  
% 2.28/1.47  thf(setadjoinAx_type,type,
% 2.28/1.47      setadjoinAx: $o ).
% 2.28/1.47  
% 2.28/1.47  thf(setadjoinAx,definition,
% 2.28/1.47      ( setadjoinAx
% 2.28/1.47      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 2.28/1.47            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 2.28/1.47          <=> ( ( Xy = Xx )
% 2.28/1.47              | ( in @ Xy @ A ) ) ) ) ) ).
% 2.28/1.47  
% 2.28/1.47  thf(powerset_type,type,
% 2.28/1.47      powerset: $i > $i ).
% 2.28/1.47  
% 2.28/1.47  thf(powersetAx_type,type,
% 2.28/1.47      powersetAx: $o ).
% 2.28/1.47  
% 2.28/1.47  thf(powersetAx,definition,
% 2.28/1.47      ( powersetAx
% 2.28/1.47      = ( ! [A: $i,B: $i] :
% 2.28/1.47            ( ( in @ B @ ( powerset @ A ) )
% 2.28/1.47          <=> ! [Xx: $i] :
% 2.28/1.47                ( ( in @ Xx @ B )
% 2.28/1.47               => ( in @ Xx @ A ) ) ) ) ) ).
% 2.28/1.47  
% 2.28/1.47  thf(setunion_type,type,
% 2.28/1.47      setunion: $i > $i ).
% 2.28/1.47  
% 2.28/1.47  thf(setunionAx_type,type,
% 2.28/1.47      setunionAx: $o ).
% 2.28/1.47  
% 2.28/1.47  thf(setunionAx,definition,
% 2.28/1.47      ( setunionAx
% 2.28/1.47      = ( ! [A: $i,Xx: $i] :
% 2.28/1.47            ( ( in @ Xx @ ( setunion @ A ) )
% 2.28/1.47          <=> ? [B: $i] :
% 2.28/1.47                ( ( in @ Xx @ B )
% 2.28/1.47                & ( in @ B @ A ) ) ) ) ) ).
% 2.28/1.47  
% 2.28/1.47  thf(omega_type,type,
% 2.28/1.47      omega: $i ).
% 2.28/1.47  
% 2.28/1.47  thf(omega0Ax_type,type,
% 2.28/1.47      omega0Ax: $o ).
% 2.28/1.47  
% 2.28/1.47  thf(omega0Ax,definition,
% 2.28/1.47      ( omega0Ax
% 2.28/1.47      = ( in @ emptyset @ omega ) ) ).
% 2.28/1.47  
% 2.28/1.47  thf(omegaSAx_type,type,
% 2.28/1.47      omegaSAx: $o ).
% 2.28/1.47  
% 2.28/1.47  thf(omegaSAx,definition,
% 2.28/1.47      ( omegaSAx
% 2.28/1.47      = ( ! [Xx: $i] :
% 2.28/1.47            ( ( in @ Xx @ omega )
% 2.28/1.47           => ( in @ ( setadjoin @ Xx @ Xx ) @ omega ) ) ) ) ).
% 2.28/1.47  
% 2.28/1.47  thf(omegaIndAx_type,type,
% 2.28/1.47      omegaIndAx: $o ).
% 2.28/1.47  
% 2.28/1.47  thf(omegaIndAx,definition,
% 2.28/1.47      ( omegaIndAx
% 2.28/1.47      = ( ! [A: $i] :
% 2.28/1.47            ( ( ( in @ emptyset @ A )
% 2.28/1.47              & ! [Xx: $i] :
% 2.28/1.47                  ( ( ( in @ Xx @ omega )
% 2.28/1.47                    & ( in @ Xx @ A ) )
% 2.28/1.47                 => ( in @ ( setadjoin @ Xx @ Xx ) @ A ) ) )
% 2.28/1.47           => ! [Xx: $i] :
% 2.28/1.47                ( ( in @ Xx @ omega )
% 2.28/1.47               => ( in @ Xx @ A ) ) ) ) ) ).
% 2.28/1.47  
% 2.28/1.47  thf(replAx_type,type,
% 2.28/1.47      replAx: $o ).
% 2.28/1.47  
% 2.28/1.47  thf(replAx,definition,
% 2.28/1.47      ( replAx
% 2.28/1.47      = ( ! [Xphi: $i > $i > $o,A: $i] :
% 2.28/1.47            ( ! [Xx: $i] :
% 2.28/1.47                ( ( in @ Xx @ A )
% 2.28/1.47               => ( exu
% 2.28/1.47                  @ ^ [Xy: $i] : ( Xphi @ Xx @ Xy ) ) )
% 2.28/1.47           => ? [B: $i] :
% 2.28/1.47              ! [Xx: $i] :
% 2.28/1.47                ( ( in @ Xx @ B )
% 2.28/1.47              <=> ? [Xy: $i] :
% 2.28/1.47                    ( ( in @ Xy @ A )
% 2.28/1.47                    & ( Xphi @ Xy @ Xx ) ) ) ) ) ) ).
% 2.28/1.47  
% 2.28/1.47  thf(foundationAx_type,type,
% 2.28/1.47      foundationAx: $o ).
% 2.28/1.47  
% 2.28/1.47  thf(foundationAx,definition,
% 2.28/1.47      ( foundationAx
% 2.28/1.47      = ( ! [A: $i] :
% 2.28/1.47            ( ? [Xx: $i] : ( in @ Xx @ A )
% 2.28/1.47           => ? [B: $i] :
% 2.28/1.47                ( ( in @ B @ A )
% 2.28/1.47                & ~ ? [Xx: $i] :
% 2.28/1.47                      ( ( in @ Xx @ B )
% 2.28/1.47                      & ( in @ Xx @ A ) ) ) ) ) ) ).
% 2.28/1.47  
% 2.28/1.47  thf(wellorderingAx_type,type,
% 2.28/1.47      wellorderingAx: $o ).
% 2.28/1.47  
% 2.28/1.47  thf(wellorderingAx,definition,
% 2.28/1.47      ( wellorderingAx
% 2.28/1.47      = ( ! [A: $i] :
% 2.28/1.47          ? [B: $i] :
% 2.28/1.47            ( ! [C: $i] :
% 2.28/1.47                ( ( in @ C @ B )
% 2.28/1.47               => ! [Xx: $i] :
% 2.28/1.47                    ( ( in @ Xx @ C )
% 2.28/1.47                   => ( in @ Xx @ A ) ) )
% 2.28/1.47            & ! [Xx: $i,Xy: $i] :
% 2.28/1.47                ( ( ( in @ Xx @ A )
% 2.28/1.47                  & ( in @ Xy @ A ) )
% 2.28/1.47               => ( ! [C: $i] :
% 2.28/1.47                      ( ( in @ C @ B )
% 2.28/1.47                     => ( ( in @ Xx @ C )
% 2.28/1.47                      <=> ( in @ Xy @ C ) ) )
% 2.28/1.47                 => ( Xx = Xy ) ) )
% 2.28/1.47            & ! [C: $i,D: $i] :
% 2.28/1.47                ( ( ( in @ C @ B )
% 2.28/1.47                  & ( in @ D @ B ) )
% 2.28/1.47               => ( ! [Xx: $i] :
% 2.28/1.47                      ( ( in @ Xx @ C )
% 2.28/1.47                     => ( in @ Xx @ D ) )
% 2.28/1.47                  | ! [Xx: $i] :
% 2.28/1.47                      ( ( in @ Xx @ D )
% 2.28/1.48                     => ( in @ Xx @ C ) ) ) )
% 2.28/1.48            & ! [C: $i] :
% 2.28/1.48                ( ( ! [Xx: $i] :
% 2.28/1.48                      ( ( in @ Xx @ C )
% 2.28/1.48                     => ( in @ Xx @ A ) )
% 2.28/1.48                  & ? [Xx: $i] : ( in @ Xx @ C ) )
% 2.28/1.48               => ? [D: $i,Xx: $i] :
% 2.28/1.48                    ( ( in @ D @ B )
% 2.28/1.48                    & ( in @ Xx @ C )
% 2.28/1.48                    & ~ ? [Xy: $i] :
% 2.28/1.48                          ( ( in @ Xy @ D )
% 2.28/1.48                          & ( in @ Xy @ C ) )
% 2.28/1.48                    & ! [E: $i] :
% 2.28/1.48                        ( ( in @ E @ B )
% 2.28/1.48                       => ( ! [Xy: $i] :
% 2.28/1.48                              ( ( in @ Xy @ E )
% 2.28/1.48                             => ( in @ Xy @ D ) )
% 2.28/1.48                          | ( in @ Xx @ E ) ) ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(descr_type,type,
% 2.28/1.48      descr: ( $i > $o ) > $i ).
% 2.28/1.48  
% 2.28/1.48  thf(descrp_type,type,
% 2.28/1.48      descrp: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(descrp,definition,
% 2.28/1.48      ( descrp
% 2.28/1.48      = ( ! [Xphi: $i > $o] :
% 2.28/1.48            ( ( exu
% 2.28/1.48              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 2.28/1.48           => ( Xphi
% 2.28/1.48              @ ( descr
% 2.28/1.48                @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(dsetconstr_type,type,
% 2.28/1.48      dsetconstr: $i > ( $i > $o ) > $i ).
% 2.28/1.48  
% 2.28/1.48  thf(dsetconstrI_type,type,
% 2.28/1.48      dsetconstrI: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(dsetconstrI,definition,
% 2.28/1.48      ( dsetconstrI
% 2.28/1.48      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ A )
% 2.28/1.48           => ( ( Xphi @ Xx )
% 2.28/1.48             => ( in @ Xx
% 2.28/1.48                @ ( dsetconstr @ A
% 2.28/1.48                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(dsetconstrEL_type,type,
% 2.28/1.48      dsetconstrEL: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(dsetconstrEL,definition,
% 2.28/1.48      ( dsetconstrEL
% 2.28/1.48      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx
% 2.28/1.48              @ ( dsetconstr @ A
% 2.28/1.48                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 2.28/1.48           => ( in @ Xx @ A ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(dsetconstrER_type,type,
% 2.28/1.48      dsetconstrER: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(dsetconstrER,definition,
% 2.28/1.48      ( dsetconstrER
% 2.28/1.48      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx
% 2.28/1.48              @ ( dsetconstr @ A
% 2.28/1.48                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 2.28/1.48           => ( Xphi @ Xx ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(exuE1_type,type,
% 2.28/1.48      exuE1: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(exuE1,definition,
% 2.28/1.48      ( exuE1
% 2.28/1.48      = ( ! [Xphi: $i > $o] :
% 2.28/1.48            ( ( exu
% 2.28/1.48              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 2.28/1.48           => ? [Xx: $i] :
% 2.28/1.48                ( ( Xphi @ Xx )
% 2.28/1.48                & ! [Xy: $i] :
% 2.28/1.48                    ( ( Xphi @ Xy )
% 2.28/1.48                   => ( Xx = Xy ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(prop2set_type,type,
% 2.28/1.48      prop2set: $o > $i ).
% 2.28/1.48  
% 2.28/1.48  thf(prop2setE_type,type,
% 2.28/1.48      prop2setE: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(prop2setE,definition,
% 2.28/1.48      ( prop2setE
% 2.28/1.48      = ( ! [Xphi: $o,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ ( prop2set @ Xphi ) )
% 2.28/1.48           => Xphi ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(emptysetE_type,type,
% 2.28/1.48      emptysetE: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(emptysetE,definition,
% 2.28/1.48      ( emptysetE
% 2.28/1.48      = ( ! [Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ emptyset )
% 2.28/1.48           => ! [Xphi: $o] : Xphi ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(emptysetimpfalse_type,type,
% 2.28/1.48      emptysetimpfalse: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(emptysetimpfalse,definition,
% 2.28/1.48      ( emptysetimpfalse
% 2.28/1.48      = ( ! [Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ emptyset )
% 2.28/1.48           => $false ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(notinemptyset_type,type,
% 2.28/1.48      notinemptyset: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(notinemptyset,definition,
% 2.28/1.48      ( notinemptyset
% 2.28/1.48      = ( ! [Xx: $i] :
% 2.28/1.48            ~ ( in @ Xx @ emptyset ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(exuE3e_type,type,
% 2.28/1.48      exuE3e: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(exuE3e,definition,
% 2.28/1.48      ( exuE3e
% 2.28/1.48      = ( ! [Xphi: $i > $o] :
% 2.28/1.48            ( ( exu
% 2.28/1.48              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 2.28/1.48           => ? [Xx: $i] : ( Xphi @ Xx ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setext_type,type,
% 2.28/1.48      setext: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setext,definition,
% 2.28/1.48      ( setext
% 2.28/1.48      = ( ! [A: $i,B: $i] :
% 2.28/1.48            ( ! [Xx: $i] :
% 2.28/1.48                ( ( in @ Xx @ A )
% 2.28/1.48               => ( in @ Xx @ B ) )
% 2.28/1.48           => ( ! [Xx: $i] :
% 2.28/1.48                  ( ( in @ Xx @ B )
% 2.28/1.48                 => ( in @ Xx @ A ) )
% 2.28/1.48             => ( A = B ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(emptyI_type,type,
% 2.28/1.48      emptyI: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(emptyI,definition,
% 2.28/1.48      ( emptyI
% 2.28/1.48      = ( ! [A: $i] :
% 2.28/1.48            ( ! [Xx: $i] :
% 2.28/1.48                ~ ( in @ Xx @ A )
% 2.28/1.48           => ( A = emptyset ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(noeltsimpempty_type,type,
% 2.28/1.48      noeltsimpempty: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(noeltsimpempty,definition,
% 2.28/1.48      ( noeltsimpempty
% 2.28/1.48      = ( ! [A: $i] :
% 2.28/1.48            ( ! [Xx: $i] :
% 2.28/1.48                ~ ( in @ Xx @ A )
% 2.28/1.48           => ( A = emptyset ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setbeta_type,type,
% 2.28/1.48      setbeta: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setbeta,definition,
% 2.28/1.48      ( setbeta
% 2.28/1.48      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ A )
% 2.28/1.48           => ( ( in @ Xx
% 2.28/1.48                @ ( dsetconstr @ A
% 2.28/1.48                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 2.28/1.48            <=> ( Xphi @ Xx ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(nonempty_type,type,
% 2.28/1.48      nonempty: $i > $o ).
% 2.28/1.48  
% 2.28/1.48  thf(nonempty,definition,
% 2.28/1.48      ( nonempty
% 2.28/1.48      = ( ^ [Xx: $i] : ( Xx != emptyset ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(nonemptyE1_type,type,
% 2.28/1.48      nonemptyE1: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(nonemptyE1,definition,
% 2.28/1.48      ( nonemptyE1
% 2.28/1.48      = ( ! [A: $i] :
% 2.28/1.48            ( ( nonempty @ A )
% 2.28/1.48           => ? [Xx: $i] : ( in @ Xx @ A ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(nonemptyI_type,type,
% 2.28/1.48      nonemptyI: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(nonemptyI,definition,
% 2.28/1.48      ( nonemptyI
% 2.28/1.48      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ A )
% 2.28/1.48           => ( ( Xphi @ Xx )
% 2.28/1.48             => ( nonempty
% 2.28/1.48                @ ( dsetconstr @ A
% 2.28/1.48                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(nonemptyI1_type,type,
% 2.28/1.48      nonemptyI1: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(nonemptyI1,definition,
% 2.28/1.48      ( nonemptyI1
% 2.28/1.48      = ( ! [A: $i] :
% 2.28/1.48            ( ? [Xx: $i] : ( in @ Xx @ A )
% 2.28/1.48           => ( nonempty @ A ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setadjoinIL_type,type,
% 2.28/1.48      setadjoinIL: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setadjoinIL,definition,
% 2.28/1.48      ( setadjoinIL
% 2.28/1.48      = ( ! [Xx: $i,Xy: $i] : ( in @ Xx @ ( setadjoin @ Xx @ Xy ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(emptyinunitempty_type,type,
% 2.28/1.48      emptyinunitempty: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(emptyinunitempty,definition,
% 2.28/1.48      ( emptyinunitempty
% 2.28/1.48      = ( in @ emptyset @ ( setadjoin @ emptyset @ emptyset ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setadjoinIR_type,type,
% 2.28/1.48      setadjoinIR: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setadjoinIR,definition,
% 2.28/1.48      ( setadjoinIR
% 2.28/1.48      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 2.28/1.48            ( ( in @ Xy @ A )
% 2.28/1.48           => ( in @ Xy @ ( setadjoin @ Xx @ A ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setadjoinE_type,type,
% 2.28/1.48      setadjoinE: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setadjoinE,definition,
% 2.28/1.48      ( setadjoinE
% 2.28/1.48      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 2.28/1.48            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 2.28/1.48           => ! [Xphi: $o] :
% 2.28/1.48                ( ( ( Xy = Xx )
% 2.28/1.48                 => Xphi )
% 2.28/1.48               => ( ( ( in @ Xy @ A )
% 2.28/1.48                   => Xphi )
% 2.28/1.48                 => Xphi ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setadjoinOr_type,type,
% 2.28/1.48      setadjoinOr: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setadjoinOr,definition,
% 2.28/1.48      ( setadjoinOr
% 2.28/1.48      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 2.28/1.48            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 2.28/1.48           => ( ( Xy = Xx )
% 2.28/1.48              | ( in @ Xy @ A ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setoftrueEq_type,type,
% 2.28/1.48      setoftrueEq: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setoftrueEq,definition,
% 2.28/1.48      ( setoftrueEq
% 2.28/1.48      = ( ! [A: $i] :
% 2.28/1.48            ( ( dsetconstr @ A
% 2.28/1.48              @ ^ [Xx: $i] : $true )
% 2.28/1.48            = A ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(powersetI_type,type,
% 2.28/1.48      powersetI: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(powersetI,definition,
% 2.28/1.48      ( powersetI
% 2.28/1.48      = ( ! [A: $i,B: $i] :
% 2.28/1.48            ( ! [Xx: $i] :
% 2.28/1.48                ( ( in @ Xx @ B )
% 2.28/1.48               => ( in @ Xx @ A ) )
% 2.28/1.48           => ( in @ B @ ( powerset @ A ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(emptyinPowerset_type,type,
% 2.28/1.48      emptyinPowerset: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(emptyinPowerset,definition,
% 2.28/1.48      ( emptyinPowerset
% 2.28/1.48      = ( ! [A: $i] : ( in @ emptyset @ ( powerset @ A ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(emptyInPowerset_type,type,
% 2.28/1.48      emptyInPowerset: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(emptyInPowerset,definition,
% 2.28/1.48      ( emptyInPowerset
% 2.28/1.48      = ( ! [A: $i] : ( in @ emptyset @ ( powerset @ A ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(powersetE_type,type,
% 2.28/1.48      powersetE: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(powersetE,definition,
% 2.28/1.48      ( powersetE
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ B @ ( powerset @ A ) )
% 2.28/1.48           => ( ( in @ Xx @ B )
% 2.28/1.48             => ( in @ Xx @ A ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setunionI_type,type,
% 2.28/1.48      setunionI: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setunionI,definition,
% 2.28/1.48      ( setunionI
% 2.28/1.48      = ( ! [A: $i,Xx: $i,B: $i] :
% 2.28/1.48            ( ( in @ Xx @ B )
% 2.28/1.48           => ( ( in @ B @ A )
% 2.28/1.48             => ( in @ Xx @ ( setunion @ A ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setunionE_type,type,
% 2.28/1.48      setunionE: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setunionE,definition,
% 2.28/1.48      ( setunionE
% 2.28/1.48      = ( ! [A: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ ( setunion @ A ) )
% 2.28/1.48           => ! [Xphi: $o] :
% 2.28/1.48                ( ! [B: $i] :
% 2.28/1.48                    ( ( in @ Xx @ B )
% 2.28/1.48                   => ( ( in @ B @ A )
% 2.28/1.48                     => Xphi ) )
% 2.28/1.48               => Xphi ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(subPowSU_type,type,
% 2.28/1.48      subPowSU: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(subPowSU,definition,
% 2.28/1.48      ( subPowSU
% 2.28/1.48      = ( ! [A: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ A )
% 2.28/1.48           => ( in @ Xx @ ( powerset @ ( setunion @ A ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(exuE2_type,type,
% 2.28/1.48      exuE2: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(exuE2,definition,
% 2.28/1.48      ( exuE2
% 2.28/1.48      = ( ! [Xphi: $i > $o] :
% 2.28/1.48            ( ( exu
% 2.28/1.48              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 2.28/1.48           => ? [Xx: $i] :
% 2.28/1.48              ! [Xy: $i] :
% 2.28/1.48                ( ( Xphi @ Xy )
% 2.28/1.48              <=> ( Xy = Xx ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(nonemptyImpWitness_type,type,
% 2.28/1.48      nonemptyImpWitness: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(nonemptyImpWitness,definition,
% 2.28/1.48      ( nonemptyImpWitness
% 2.28/1.48      = ( ! [A: $i] :
% 2.28/1.48            ( ( nonempty @ A )
% 2.28/1.48           => ? [Xx: $i] :
% 2.28/1.48                ( ( in @ Xx @ A )
% 2.28/1.48                & $true ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(uniqinunit_type,type,
% 2.28/1.48      uniqinunit: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(uniqinunit,definition,
% 2.28/1.48      ( uniqinunit
% 2.28/1.48      = ( ! [Xx: $i,Xy: $i] :
% 2.28/1.48            ( ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) )
% 2.28/1.48           => ( Xx = Xy ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(notinsingleton_type,type,
% 2.28/1.48      notinsingleton: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(notinsingleton,definition,
% 2.28/1.48      ( notinsingleton
% 2.28/1.48      = ( ! [Xx: $i,Xy: $i] :
% 2.28/1.48            ( ( Xx != Xy )
% 2.28/1.48           => ~ ( in @ Xy @ ( setadjoin @ Xx @ emptyset ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(eqinunit_type,type,
% 2.28/1.48      eqinunit: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(eqinunit,definition,
% 2.28/1.48      ( eqinunit
% 2.28/1.48      = ( ! [Xx: $i,Xy: $i] :
% 2.28/1.48            ( ( Xx = Xy )
% 2.28/1.48           => ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(singletonsswitch_type,type,
% 2.28/1.48      singletonsswitch: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(singletonsswitch,definition,
% 2.28/1.48      ( singletonsswitch
% 2.28/1.48      = ( ! [Xx: $i,Xy: $i] :
% 2.28/1.48            ( ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) )
% 2.28/1.48           => ( in @ Xy @ ( setadjoin @ Xx @ emptyset ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(upairsetE_type,type,
% 2.28/1.48      upairsetE: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(upairsetE,definition,
% 2.28/1.48      ( upairsetE
% 2.28/1.48      = ( ! [Xx: $i,Xy: $i,Xz: $i] :
% 2.28/1.48            ( ( in @ Xz @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) )
% 2.28/1.48           => ( ( Xz = Xx )
% 2.28/1.48              | ( Xz = Xy ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(upairsetIL_type,type,
% 2.28/1.48      upairsetIL: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(upairsetIL,definition,
% 2.28/1.48      ( upairsetIL
% 2.28/1.48      = ( ! [Xx: $i,Xy: $i] : ( in @ Xx @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(upairsetIR_type,type,
% 2.28/1.48      upairsetIR: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(upairsetIR,definition,
% 2.28/1.48      ( upairsetIR
% 2.28/1.48      = ( ! [Xx: $i,Xy: $i] : ( in @ Xy @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(emptyE1_type,type,
% 2.28/1.48      emptyE1: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(emptyE1,definition,
% 2.28/1.48      ( emptyE1
% 2.28/1.48      = ( ! [A: $i,Xphi: $i > $o] :
% 2.28/1.48            ( ? [Xx: $i] :
% 2.28/1.48                ( ( in @ Xx @ A )
% 2.28/1.48                & ( Xphi @ Xx ) )
% 2.28/1.48           => ( ( ( dsetconstr @ A
% 2.28/1.48                  @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 2.28/1.48                = emptyset )
% 2.28/1.48             => $false ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(vacuousDall_type,type,
% 2.28/1.48      vacuousDall: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(vacuousDall,definition,
% 2.28/1.48      ( vacuousDall
% 2.28/1.48      = ( ! [Xphi: $i > $o,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ emptyset )
% 2.28/1.48           => ( Xphi @ Xx ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(quantDeMorgan1_type,type,
% 2.28/1.48      quantDeMorgan1: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(quantDeMorgan1,definition,
% 2.28/1.48      ( quantDeMorgan1
% 2.28/1.48      = ( ! [A: $i,Xphi: $i > $o] :
% 2.28/1.48            ( ~ ! [Xx: $i] :
% 2.28/1.48                  ( ( in @ Xx @ A )
% 2.28/1.48                 => ( Xphi @ Xx ) )
% 2.28/1.48           => ? [Xx: $i] :
% 2.28/1.48                ( ( in @ Xx @ A )
% 2.28/1.48                & ~ ( Xphi @ Xx ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(quantDeMorgan2_type,type,
% 2.28/1.48      quantDeMorgan2: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(quantDeMorgan2,definition,
% 2.28/1.48      ( quantDeMorgan2
% 2.28/1.48      = ( ! [A: $i,Xphi: $i > $o] :
% 2.28/1.48            ( ! [Xx: $i] :
% 2.28/1.48                ( ( in @ Xx @ A )
% 2.28/1.48               => ~ ( Xphi @ Xx ) )
% 2.28/1.48           => ~ ? [Xx: $i] :
% 2.28/1.48                  ( ( in @ Xx @ A )
% 2.28/1.48                  & ( Xphi @ Xx ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(quantDeMorgan3_type,type,
% 2.28/1.48      quantDeMorgan3: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(quantDeMorgan3,definition,
% 2.28/1.48      ( quantDeMorgan3
% 2.28/1.48      = ( ! [A: $i,Xphi: $i > $o] :
% 2.28/1.48            ( ~ ? [Xx: $i] :
% 2.28/1.48                  ( ( in @ Xx @ A )
% 2.28/1.48                  & ( Xphi @ Xx ) )
% 2.28/1.48           => ! [Xx: $i] :
% 2.28/1.48                ( ( in @ Xx @ A )
% 2.28/1.48               => ~ ( Xphi @ Xx ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(quantDeMorgan4_type,type,
% 2.28/1.48      quantDeMorgan4: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(quantDeMorgan4,definition,
% 2.28/1.48      ( quantDeMorgan4
% 2.28/1.48      = ( ! [A: $i,Xphi: $i > $o] :
% 2.28/1.48            ( ? [Xx: $i] :
% 2.28/1.48                ( ( in @ Xx @ A )
% 2.28/1.48                & ~ ( Xphi @ Xx ) )
% 2.28/1.48           => ~ ! [Xx: $i] :
% 2.28/1.48                  ( ( in @ Xx @ A )
% 2.28/1.48                 => ( Xphi @ Xx ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(prop2setI_type,type,
% 2.28/1.48      prop2setI: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(prop2setI,definition,
% 2.28/1.48      ( prop2setI
% 2.28/1.48      = ( ! [Xphi: $o] :
% 2.28/1.48            ( Xphi
% 2.28/1.48           => ( in @ emptyset @ ( prop2set @ Xphi ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(set2prop_type,type,
% 2.28/1.48      set2prop: $i > $o ).
% 2.28/1.48  
% 2.28/1.48  thf(prop2set2propI_type,type,
% 2.28/1.48      prop2set2propI: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(prop2set2propI,definition,
% 2.28/1.48      ( prop2set2propI
% 2.28/1.48      = ( ! [Xphi: $o] :
% 2.28/1.48            ( Xphi
% 2.28/1.48           => ( set2prop @ ( prop2set @ Xphi ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(notdexE_type,type,
% 2.28/1.48      notdexE: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(notdexE,definition,
% 2.28/1.48      ( notdexE
% 2.28/1.48      = ( ! [A: $i,Xphi: $i > $o] :
% 2.28/1.48            ( ~ ? [Xx: $i] :
% 2.28/1.48                  ( ( in @ Xx @ A )
% 2.28/1.48                  & ( Xphi @ Xx ) )
% 2.28/1.48           => ! [Xx: $i] :
% 2.28/1.48                ( ( in @ Xx @ A )
% 2.28/1.48               => ~ ( Xphi @ Xx ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(notdallE_type,type,
% 2.28/1.48      notdallE: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(notdallE,definition,
% 2.28/1.48      ( notdallE
% 2.28/1.48      = ( ! [A: $i,Xphi: $i > $o] :
% 2.28/1.48            ( ~ ! [Xx: $i] :
% 2.28/1.48                  ( ( in @ Xx @ A )
% 2.28/1.48                 => ( Xphi @ Xx ) )
% 2.28/1.48           => ? [Xx: $i] :
% 2.28/1.48                ( ( in @ Xx @ A )
% 2.28/1.48                & ~ ( Xphi @ Xx ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(exuI1_type,type,
% 2.28/1.48      exuI1: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(exuI1,definition,
% 2.28/1.48      ( exuI1
% 2.28/1.48      = ( ! [Xphi: $i > $o] :
% 2.28/1.48            ( ? [Xx: $i] :
% 2.28/1.48                ( ( Xphi @ Xx )
% 2.28/1.48                & ! [Xy: $i] :
% 2.28/1.48                    ( ( Xphi @ Xy )
% 2.28/1.48                   => ( Xx = Xy ) ) )
% 2.28/1.48           => ( exu
% 2.28/1.48              @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(exuI3_type,type,
% 2.28/1.48      exuI3: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(exuI3,definition,
% 2.28/1.48      ( exuI3
% 2.28/1.48      = ( ! [Xphi: $i > $o] :
% 2.28/1.48            ( ? [Xx: $i] : ( Xphi @ Xx )
% 2.28/1.48           => ( ! [Xx: $i,Xy: $i] :
% 2.28/1.48                  ( ( Xphi @ Xx )
% 2.28/1.48                 => ( ( Xphi @ Xy )
% 2.28/1.48                   => ( Xx = Xy ) ) )
% 2.28/1.48             => ( exu
% 2.28/1.48                @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(exuI2_type,type,
% 2.28/1.48      exuI2: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(exuI2,definition,
% 2.28/1.48      ( exuI2
% 2.28/1.48      = ( ! [Xphi: $i > $o] :
% 2.28/1.48            ( ? [Xx: $i] :
% 2.28/1.48              ! [Xy: $i] :
% 2.28/1.48                ( ( Xphi @ Xy )
% 2.28/1.48              <=> ( Xy = Xx ) )
% 2.28/1.48           => ( exu
% 2.28/1.48              @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(inCongP_type,type,
% 2.28/1.48      inCongP: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(inCongP,definition,
% 2.28/1.48      ( inCongP
% 2.28/1.48      = ( ! [A: $i,B: $i] :
% 2.28/1.48            ( ( A = B )
% 2.28/1.48           => ! [Xx: $i,Xy: $i] :
% 2.28/1.48                ( ( Xx = Xy )
% 2.28/1.48               => ( ( in @ Xx @ A )
% 2.28/1.48                 => ( in @ Xy @ B ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(in__Cong_type,type,
% 2.28/1.48      in__Cong: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(in__Cong,definition,
% 2.28/1.48      ( in__Cong
% 2.28/1.48      = ( ! [A: $i,B: $i] :
% 2.28/1.48            ( ( A = B )
% 2.28/1.48           => ! [Xx: $i,Xy: $i] :
% 2.28/1.48                ( ( Xx = Xy )
% 2.28/1.48               => ( ( in @ Xx @ A )
% 2.28/1.48                <=> ( in @ Xy @ B ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(exuE3u_type,type,
% 2.28/1.48      exuE3u: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(exuE3u,definition,
% 2.28/1.48      ( exuE3u
% 2.28/1.48      = ( ! [Xphi: $i > $o] :
% 2.28/1.48            ( ( exu
% 2.28/1.48              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 2.28/1.48           => ! [Xx: $i,Xy: $i] :
% 2.28/1.48                ( ( Xphi @ Xx )
% 2.28/1.48               => ( ( Xphi @ Xy )
% 2.28/1.48                 => ( Xx = Xy ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(exu__Cong_type,type,
% 2.28/1.48      exu__Cong: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(exu__Cong,definition,
% 2.28/1.48      ( exu__Cong
% 2.28/1.48      = ( ! [Xphi: $i > $o,Xpsi: $i > $o] :
% 2.28/1.48            ( ! [Xx: $i,Xy: $i] :
% 2.28/1.48                ( ( Xx = Xy )
% 2.28/1.48               => ( ( Xphi @ Xx )
% 2.28/1.48                <=> ( Xpsi @ Xy ) ) )
% 2.28/1.48           => ( ( exu
% 2.28/1.48                @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 2.28/1.48            <=> ( exu
% 2.28/1.48                @ ^ [Xx: $i] : ( Xpsi @ Xx ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(emptyset__Cong_type,type,
% 2.28/1.48      emptyset__Cong: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(emptyset__Cong,definition,
% 2.28/1.48      ( emptyset__Cong
% 2.28/1.48      = ( emptyset = emptyset ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setadjoin__Cong_type,type,
% 2.28/1.48      setadjoin__Cong: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setadjoin__Cong,definition,
% 2.28/1.48      ( setadjoin__Cong
% 2.28/1.48      = ( ! [Xx: $i,Xy: $i] :
% 2.28/1.48            ( ( Xx = Xy )
% 2.28/1.48           => ! [Xz: $i,Xu: $i] :
% 2.28/1.48                ( ( Xz = Xu )
% 2.28/1.48               => ( ( setadjoin @ Xx @ Xz )
% 2.28/1.48                  = ( setadjoin @ Xy @ Xu ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(powerset__Cong_type,type,
% 2.28/1.48      powerset__Cong: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(powerset__Cong,definition,
% 2.28/1.48      ( powerset__Cong
% 2.28/1.48      = ( ! [A: $i,B: $i] :
% 2.28/1.48            ( ( A = B )
% 2.28/1.48           => ( ( powerset @ A )
% 2.28/1.48              = ( powerset @ B ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setunion__Cong_type,type,
% 2.28/1.48      setunion__Cong: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setunion__Cong,definition,
% 2.28/1.48      ( setunion__Cong
% 2.28/1.48      = ( ! [A: $i,B: $i] :
% 2.28/1.48            ( ( A = B )
% 2.28/1.48           => ( ( setunion @ A )
% 2.28/1.48              = ( setunion @ B ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(omega__Cong_type,type,
% 2.28/1.48      omega__Cong: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(omega__Cong,definition,
% 2.28/1.48      ( omega__Cong
% 2.28/1.48      = ( omega = omega ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(exuEu_type,type,
% 2.28/1.48      exuEu: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(exuEu,definition,
% 2.28/1.48      ( exuEu
% 2.28/1.48      = ( ! [Xphi: $i > $o] :
% 2.28/1.48            ( ( exu
% 2.28/1.48              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 2.28/1.48           => ! [Xx: $i,Xy: $i] :
% 2.28/1.48                ( ( Xphi @ Xx )
% 2.28/1.48               => ( ( Xphi @ Xy )
% 2.28/1.48                 => ( Xx = Xy ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(descr__Cong_type,type,
% 2.28/1.48      descr__Cong: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(descr__Cong,definition,
% 2.28/1.48      ( descr__Cong
% 2.28/1.48      = ( ! [Xphi: $i > $o,Xpsi: $i > $o] :
% 2.28/1.48            ( ! [Xx: $i,Xy: $i] :
% 2.28/1.48                ( ( Xx = Xy )
% 2.28/1.48               => ( ( Xphi @ Xx )
% 2.28/1.48                <=> ( Xpsi @ Xy ) ) )
% 2.28/1.48           => ( ( exu
% 2.28/1.48                @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 2.28/1.48             => ( ( exu
% 2.28/1.48                  @ ^ [Xx: $i] : ( Xpsi @ Xx ) )
% 2.28/1.48               => ( ( descr
% 2.28/1.48                    @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 2.28/1.48                  = ( descr
% 2.28/1.48                    @ ^ [Xx: $i] : ( Xpsi @ Xx ) ) ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(dsetconstr__Cong_type,type,
% 2.28/1.48      dsetconstr__Cong: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(dsetconstr__Cong,definition,
% 2.28/1.48      ( dsetconstr__Cong
% 2.28/1.48      = ( ! [A: $i,B: $i] :
% 2.28/1.48            ( ( A = B )
% 2.28/1.48           => ! [Xphi: $i > $o,Xpsi: $i > $o] :
% 2.28/1.48                ( ! [Xx: $i] :
% 2.28/1.48                    ( ( in @ Xx @ A )
% 2.28/1.48                   => ! [Xy: $i] :
% 2.28/1.48                        ( ( in @ Xy @ B )
% 2.28/1.48                       => ( ( Xx = Xy )
% 2.28/1.48                         => ( ( Xphi @ Xx )
% 2.28/1.48                          <=> ( Xpsi @ Xy ) ) ) ) )
% 2.28/1.48               => ( ( dsetconstr @ A
% 2.28/1.48                    @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 2.28/1.48                  = ( dsetconstr @ B
% 2.28/1.48                    @ ^ [Xx: $i] : ( Xpsi @ Xx ) ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(subset_type,type,
% 2.28/1.48      subset: $i > $i > $o ).
% 2.28/1.48  
% 2.28/1.48  thf(disjoint_type,type,
% 2.28/1.48      disjoint: $i > $i > $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setsmeet_type,type,
% 2.28/1.48      setsmeet: $i > $i > $o ).
% 2.28/1.48  
% 2.28/1.48  thf(subsetI1_type,type,
% 2.28/1.48      subsetI1: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(subsetI1,definition,
% 2.28/1.48      ( subsetI1
% 2.28/1.48      = ( ! [A: $i,B: $i] :
% 2.28/1.48            ( ! [Xx: $i] :
% 2.28/1.48                ( ( in @ Xx @ A )
% 2.28/1.48               => ( in @ Xx @ B ) )
% 2.28/1.48           => ( subset @ A @ B ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(eqimpsubset2_type,type,
% 2.28/1.48      eqimpsubset2: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(eqimpsubset2,definition,
% 2.28/1.48      ( eqimpsubset2
% 2.28/1.48      = ( ! [A: $i,B: $i] :
% 2.28/1.48            ( ( A = B )
% 2.28/1.48           => ( subset @ B @ A ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(eqimpsubset1_type,type,
% 2.28/1.48      eqimpsubset1: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(eqimpsubset1,definition,
% 2.28/1.48      ( eqimpsubset1
% 2.28/1.48      = ( ! [A: $i,B: $i] :
% 2.28/1.48            ( ( A = B )
% 2.28/1.48           => ( subset @ A @ B ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(subsetI2_type,type,
% 2.28/1.48      subsetI2: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(subsetI2,definition,
% 2.28/1.48      ( subsetI2
% 2.28/1.48      = ( ! [A: $i,B: $i] :
% 2.28/1.48            ( ! [Xx: $i] :
% 2.28/1.48                ( ( in @ Xx @ A )
% 2.28/1.48               => ( in @ Xx @ B ) )
% 2.28/1.48           => ( subset @ A @ B ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(emptysetsubset_type,type,
% 2.28/1.48      emptysetsubset: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(emptysetsubset,definition,
% 2.28/1.48      ( emptysetsubset
% 2.28/1.48      = ( ! [A: $i] : ( subset @ emptyset @ A ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(subsetE_type,type,
% 2.28/1.48      subsetE: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(subsetE,definition,
% 2.28/1.48      ( subsetE
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ( subset @ A @ B )
% 2.28/1.48           => ( ( in @ Xx @ A )
% 2.28/1.48             => ( in @ Xx @ B ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(subsetE2_type,type,
% 2.28/1.48      subsetE2: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(subsetE2,definition,
% 2.28/1.48      ( subsetE2
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ( subset @ A @ B )
% 2.28/1.48           => ( ~ ( in @ Xx @ B )
% 2.28/1.48             => ~ ( in @ Xx @ A ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(notsubsetI_type,type,
% 2.28/1.48      notsubsetI: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(notsubsetI,definition,
% 2.28/1.48      ( notsubsetI
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ A )
% 2.28/1.48           => ( ~ ( in @ Xx @ B )
% 2.28/1.48             => ~ ( subset @ A @ B ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(notequalI1_type,type,
% 2.28/1.48      notequalI1: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(notequalI1,definition,
% 2.28/1.48      ( notequalI1
% 2.28/1.48      = ( ! [A: $i,B: $i] :
% 2.28/1.48            ( ~ ( subset @ A @ B )
% 2.28/1.48           => ( A != B ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(notequalI2_type,type,
% 2.28/1.48      notequalI2: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(notequalI2,definition,
% 2.28/1.48      ( notequalI2
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ A )
% 2.28/1.48           => ( ~ ( in @ Xx @ B )
% 2.28/1.48             => ( A != B ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(subsetRefl_type,type,
% 2.28/1.48      subsetRefl: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(subsetRefl,definition,
% 2.28/1.48      ( subsetRefl
% 2.28/1.48      = ( ! [A: $i] : ( subset @ A @ A ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(subsetTrans_type,type,
% 2.28/1.48      subsetTrans: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(subsetTrans,definition,
% 2.28/1.48      ( subsetTrans
% 2.28/1.48      = ( ! [A: $i,B: $i,C: $i] :
% 2.28/1.48            ( ( subset @ A @ B )
% 2.28/1.48           => ( ( subset @ B @ C )
% 2.28/1.48             => ( subset @ A @ C ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setadjoinSub_type,type,
% 2.28/1.48      setadjoinSub: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setadjoinSub,definition,
% 2.28/1.48      ( setadjoinSub
% 2.28/1.48      = ( ! [Xx: $i,A: $i] : ( subset @ A @ ( setadjoin @ Xx @ A ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setadjoinSub2_type,type,
% 2.28/1.48      setadjoinSub2: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setadjoinSub2,definition,
% 2.28/1.48      ( setadjoinSub2
% 2.28/1.48      = ( ! [A: $i,Xx: $i,B: $i] :
% 2.28/1.48            ( ( subset @ A @ B )
% 2.28/1.48           => ( subset @ A @ ( setadjoin @ Xx @ B ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(subset2powerset_type,type,
% 2.28/1.48      subset2powerset: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(subset2powerset,definition,
% 2.28/1.48      ( subset2powerset
% 2.28/1.48      = ( ! [A: $i,B: $i] :
% 2.28/1.48            ( ( subset @ A @ B )
% 2.28/1.48           => ( in @ A @ ( powerset @ B ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setextsub_type,type,
% 2.28/1.48      setextsub: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setextsub,definition,
% 2.28/1.48      ( setextsub
% 2.28/1.48      = ( ! [A: $i,B: $i] :
% 2.28/1.48            ( ( subset @ A @ B )
% 2.28/1.48           => ( ( subset @ B @ A )
% 2.28/1.48             => ( A = B ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(subsetemptysetimpeq_type,type,
% 2.28/1.48      subsetemptysetimpeq: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(subsetemptysetimpeq,definition,
% 2.28/1.48      ( subsetemptysetimpeq
% 2.28/1.48      = ( ! [A: $i] :
% 2.28/1.48            ( ( subset @ A @ emptyset )
% 2.28/1.48           => ( A = emptyset ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(powersetI1_type,type,
% 2.28/1.48      powersetI1: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(powersetI1,definition,
% 2.28/1.48      ( powersetI1
% 2.28/1.48      = ( ! [A: $i,B: $i] :
% 2.28/1.48            ( ( subset @ B @ A )
% 2.28/1.48           => ( in @ B @ ( powerset @ A ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(powersetE1_type,type,
% 2.28/1.48      powersetE1: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(powersetE1,definition,
% 2.28/1.48      ( powersetE1
% 2.28/1.48      = ( ! [A: $i,B: $i] :
% 2.28/1.48            ( ( in @ B @ ( powerset @ A ) )
% 2.28/1.48           => ( subset @ B @ A ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(inPowerset_type,type,
% 2.28/1.48      inPowerset: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(inPowerset,definition,
% 2.28/1.48      ( inPowerset
% 2.28/1.48      = ( ! [A: $i] : ( in @ A @ ( powerset @ A ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(powersetsubset_type,type,
% 2.28/1.48      powersetsubset: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(powersetsubset,definition,
% 2.28/1.48      ( powersetsubset
% 2.28/1.48      = ( ! [A: $i,B: $i] :
% 2.28/1.48            ( ( subset @ A @ B )
% 2.28/1.48           => ( subset @ ( powerset @ A ) @ ( powerset @ B ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(sepInPowerset_type,type,
% 2.28/1.48      sepInPowerset: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(sepInPowerset,definition,
% 2.28/1.48      ( sepInPowerset
% 2.28/1.48      = ( ! [A: $i,Xphi: $i > $o] :
% 2.28/1.48            ( in
% 2.28/1.48            @ ( dsetconstr @ A
% 2.28/1.48              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 2.28/1.48            @ ( powerset @ A ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(sepSubset_type,type,
% 2.28/1.48      sepSubset: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(sepSubset,definition,
% 2.28/1.48      ( sepSubset
% 2.28/1.48      = ( ! [A: $i,Xphi: $i > $o] :
% 2.28/1.48            ( subset
% 2.28/1.48            @ ( dsetconstr @ A
% 2.28/1.48              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 2.28/1.48            @ A ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(binunion_type,type,
% 2.28/1.48      binunion: $i > $i > $i ).
% 2.28/1.48  
% 2.28/1.48  thf(binunionIL_type,type,
% 2.28/1.48      binunionIL: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(binunionIL,definition,
% 2.28/1.48      ( binunionIL
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ A )
% 2.28/1.48           => ( in @ Xx @ ( binunion @ A @ B ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(upairset2IR_type,type,
% 2.28/1.48      upairset2IR: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(upairset2IR,definition,
% 2.28/1.48      ( upairset2IR
% 2.28/1.48      = ( ! [Xx: $i,Xy: $i] : ( in @ Xy @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(binunionIR_type,type,
% 2.28/1.48      binunionIR: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(binunionIR,definition,
% 2.28/1.48      ( binunionIR
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ B )
% 2.28/1.48           => ( in @ Xx @ ( binunion @ A @ B ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(binunionEcases_type,type,
% 2.28/1.48      binunionEcases: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(binunionEcases,definition,
% 2.28/1.48      ( binunionEcases
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i,Xphi: $o] :
% 2.28/1.48            ( ( in @ Xx @ ( binunion @ A @ B ) )
% 2.28/1.48           => ( ( ( in @ Xx @ A )
% 2.28/1.48               => Xphi )
% 2.28/1.48             => ( ( ( in @ Xx @ B )
% 2.28/1.48                 => Xphi )
% 2.28/1.48               => Xphi ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(binunionE_type,type,
% 2.28/1.48      binunionE: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(binunionE,definition,
% 2.28/1.48      ( binunionE
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ ( binunion @ A @ B ) )
% 2.28/1.48           => ( ( in @ Xx @ A )
% 2.28/1.48              | ( in @ Xx @ B ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(binunionLsub_type,type,
% 2.28/1.48      binunionLsub: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(binunionLsub,definition,
% 2.28/1.48      ( binunionLsub
% 2.28/1.48      = ( ! [A: $i,B: $i] : ( subset @ A @ ( binunion @ A @ B ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(binunionRsub_type,type,
% 2.28/1.48      binunionRsub: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(binunionRsub,definition,
% 2.28/1.48      ( binunionRsub
% 2.28/1.48      = ( ! [A: $i,B: $i] : ( subset @ B @ ( binunion @ A @ B ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(binintersect_type,type,
% 2.28/1.48      binintersect: $i > $i > $i ).
% 2.28/1.48  
% 2.28/1.48  thf(binintersectI_type,type,
% 2.28/1.48      binintersectI: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(binintersectI,definition,
% 2.28/1.48      ( binintersectI
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ A )
% 2.28/1.48           => ( ( in @ Xx @ B )
% 2.28/1.48             => ( in @ Xx @ ( binintersect @ A @ B ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(binintersectSubset5_type,type,
% 2.28/1.48      binintersectSubset5: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(binintersectSubset5,definition,
% 2.28/1.48      ( binintersectSubset5
% 2.28/1.48      = ( ! [A: $i,B: $i,C: $i] :
% 2.28/1.48            ( ( subset @ C @ A )
% 2.28/1.48           => ( ( subset @ C @ B )
% 2.28/1.48             => ( subset @ C @ ( binintersect @ A @ B ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(binintersectEL_type,type,
% 2.28/1.48      binintersectEL: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(binintersectEL,definition,
% 2.28/1.48      ( binintersectEL
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ ( binintersect @ A @ B ) )
% 2.28/1.48           => ( in @ Xx @ A ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(binintersectLsub_type,type,
% 2.28/1.48      binintersectLsub: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(binintersectLsub,definition,
% 2.28/1.48      ( binintersectLsub
% 2.28/1.48      = ( ! [A: $i,B: $i] : ( subset @ ( binintersect @ A @ B ) @ A ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(binintersectSubset2_type,type,
% 2.28/1.48      binintersectSubset2: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(binintersectSubset2,definition,
% 2.28/1.48      ( binintersectSubset2
% 2.28/1.48      = ( ! [A: $i,B: $i] :
% 2.28/1.48            ( ( subset @ A @ B )
% 2.28/1.48           => ( ( binintersect @ A @ B )
% 2.28/1.48              = A ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(binintersectSubset3_type,type,
% 2.28/1.48      binintersectSubset3: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(binintersectSubset3,definition,
% 2.28/1.48      ( binintersectSubset3
% 2.28/1.48      = ( ! [A: $i,B: $i] :
% 2.28/1.48            ( ( ( binintersect @ A @ B )
% 2.28/1.48              = B )
% 2.28/1.48           => ( subset @ B @ A ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(binintersectER_type,type,
% 2.28/1.48      binintersectER: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(binintersectER,definition,
% 2.28/1.48      ( binintersectER
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ ( binintersect @ A @ B ) )
% 2.28/1.48           => ( in @ Xx @ B ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(disjointsetsI1_type,type,
% 2.28/1.48      disjointsetsI1: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(disjointsetsI1,definition,
% 2.28/1.48      ( disjointsetsI1
% 2.28/1.48      = ( ! [A: $i,B: $i] :
% 2.28/1.48            ( ~ ? [Xx: $i] :
% 2.28/1.48                  ( ( in @ Xx @ A )
% 2.28/1.48                  & ( in @ Xx @ B ) )
% 2.28/1.48           => ( ( binintersect @ A @ B )
% 2.28/1.48              = emptyset ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(binintersectRsub_type,type,
% 2.28/1.48      binintersectRsub: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(binintersectRsub,definition,
% 2.28/1.48      ( binintersectRsub
% 2.28/1.48      = ( ! [A: $i,B: $i] : ( subset @ ( binintersect @ A @ B ) @ B ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(binintersectSubset4_type,type,
% 2.28/1.48      binintersectSubset4: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(binintersectSubset4,definition,
% 2.28/1.48      ( binintersectSubset4
% 2.28/1.48      = ( ! [A: $i,B: $i] :
% 2.28/1.48            ( ( subset @ B @ A )
% 2.28/1.48           => ( ( binintersect @ A @ B )
% 2.28/1.48              = B ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(binintersectSubset1_type,type,
% 2.28/1.48      binintersectSubset1: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(binintersectSubset1,definition,
% 2.28/1.48      ( binintersectSubset1
% 2.28/1.48      = ( ! [A: $i,B: $i] :
% 2.28/1.48            ( ( ( binintersect @ A @ B )
% 2.28/1.48              = A )
% 2.28/1.48           => ( subset @ A @ B ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(bs114d_type,type,
% 2.28/1.48      bs114d: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(bs114d,definition,
% 2.28/1.48      ( bs114d
% 2.28/1.48      = ( ! [A: $i,B: $i,C: $i] :
% 2.28/1.48            ( ( binintersect @ A @ ( binunion @ B @ C ) )
% 2.28/1.48            = ( binunion @ ( binintersect @ A @ B ) @ ( binintersect @ A @ C ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(regular_type,type,
% 2.28/1.48      regular: $i > $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setminus_type,type,
% 2.28/1.48      setminus: $i > $i > $i ).
% 2.28/1.48  
% 2.28/1.48  thf(setminusI_type,type,
% 2.28/1.48      setminusI: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setminusI,definition,
% 2.28/1.48      ( setminusI
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ A )
% 2.28/1.48           => ( ~ ( in @ Xx @ B )
% 2.28/1.48             => ( in @ Xx @ ( setminus @ A @ B ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setminusEL_type,type,
% 2.28/1.48      setminusEL: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setminusEL,definition,
% 2.28/1.48      ( setminusEL
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ ( setminus @ A @ B ) )
% 2.28/1.48           => ( in @ Xx @ A ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setminusER_type,type,
% 2.28/1.48      setminusER: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setminusER,definition,
% 2.28/1.48      ( setminusER
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ ( setminus @ A @ B ) )
% 2.28/1.48           => ~ ( in @ Xx @ B ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setminusSubset2_type,type,
% 2.28/1.48      setminusSubset2: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setminusSubset2,definition,
% 2.28/1.48      ( setminusSubset2
% 2.28/1.48      = ( ! [A: $i,B: $i] :
% 2.28/1.48            ( ( subset @ A @ B )
% 2.28/1.48           => ( ( setminus @ A @ B )
% 2.28/1.48              = emptyset ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setminusERneg_type,type,
% 2.28/1.48      setminusERneg: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setminusERneg,definition,
% 2.28/1.48      ( setminusERneg
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ~ ( in @ Xx @ ( setminus @ A @ B ) )
% 2.28/1.48           => ( ( in @ Xx @ A )
% 2.28/1.48             => ( in @ Xx @ B ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setminusELneg_type,type,
% 2.28/1.48      setminusELneg: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setminusELneg,definition,
% 2.28/1.48      ( setminusELneg
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ~ ( in @ Xx @ ( setminus @ A @ B ) )
% 2.28/1.48           => ( ~ ( in @ Xx @ B )
% 2.28/1.48             => ~ ( in @ Xx @ A ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setminusILneg_type,type,
% 2.28/1.48      setminusILneg: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setminusILneg,definition,
% 2.28/1.48      ( setminusILneg
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ~ ( in @ Xx @ A )
% 2.28/1.48           => ~ ( in @ Xx @ ( setminus @ A @ B ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setminusIRneg_type,type,
% 2.28/1.48      setminusIRneg: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setminusIRneg,definition,
% 2.28/1.48      ( setminusIRneg
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ B )
% 2.28/1.48           => ~ ( in @ Xx @ ( setminus @ A @ B ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setminusLsub_type,type,
% 2.28/1.48      setminusLsub: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setminusLsub,definition,
% 2.28/1.48      ( setminusLsub
% 2.28/1.48      = ( ! [A: $i,B: $i] : ( subset @ ( setminus @ A @ B ) @ A ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setminusSubset1_type,type,
% 2.28/1.48      setminusSubset1: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setminusSubset1,definition,
% 2.28/1.48      ( setminusSubset1
% 2.28/1.48      = ( ! [A: $i,B: $i] :
% 2.28/1.48            ( ( ( setminus @ A @ B )
% 2.28/1.48              = emptyset )
% 2.28/1.48           => ( subset @ A @ B ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(symdiff_type,type,
% 2.28/1.48      symdiff: $i > $i > $i ).
% 2.28/1.48  
% 2.28/1.48  thf(symdiffE_type,type,
% 2.28/1.48      symdiffE: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(symdiffE,definition,
% 2.28/1.48      ( symdiffE
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ ( symdiff @ A @ B ) )
% 2.28/1.48           => ! [Xphi: $o] :
% 2.28/1.48                ( ( ( in @ Xx @ A )
% 2.28/1.48                 => ( ~ ( in @ Xx @ B )
% 2.28/1.48                   => Xphi ) )
% 2.28/1.48               => ( ( ~ ( in @ Xx @ A )
% 2.28/1.48                   => ( ( in @ Xx @ B )
% 2.28/1.48                     => Xphi ) )
% 2.28/1.48                 => Xphi ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(symdiffI1_type,type,
% 2.28/1.48      symdiffI1: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(symdiffI1,definition,
% 2.28/1.48      ( symdiffI1
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ A )
% 2.28/1.48           => ( ~ ( in @ Xx @ B )
% 2.28/1.48             => ( in @ Xx @ ( symdiff @ A @ B ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(symdiffI2_type,type,
% 2.28/1.48      symdiffI2: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(symdiffI2,definition,
% 2.28/1.48      ( symdiffI2
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ~ ( in @ Xx @ A )
% 2.28/1.48           => ( ( in @ Xx @ B )
% 2.28/1.48             => ( in @ Xx @ ( symdiff @ A @ B ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(symdiffIneg1_type,type,
% 2.28/1.48      symdiffIneg1: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(symdiffIneg1,definition,
% 2.28/1.48      ( symdiffIneg1
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ A )
% 2.28/1.48           => ( ( in @ Xx @ B )
% 2.28/1.48             => ~ ( in @ Xx @ ( symdiff @ A @ B ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(symdiffIneg2_type,type,
% 2.28/1.48      symdiffIneg2: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(symdiffIneg2,definition,
% 2.28/1.48      ( symdiffIneg2
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ~ ( in @ Xx @ A )
% 2.28/1.48           => ( ~ ( in @ Xx @ B )
% 2.28/1.48             => ~ ( in @ Xx @ ( symdiff @ A @ B ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(iskpair_type,type,
% 2.28/1.48      iskpair: $i > $o ).
% 2.28/1.48  
% 2.28/1.48  thf(iskpair,definition,
% 2.28/1.48      ( iskpair
% 2.28/1.48      = ( ^ [A: $i] :
% 2.28/1.48          ? [Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ ( setunion @ A ) )
% 2.28/1.48            & ? [Xy: $i] :
% 2.28/1.48                ( ( in @ Xy @ ( setunion @ A ) )
% 2.28/1.48                & ( A
% 2.28/1.48                  = ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(secondinupair_type,type,
% 2.28/1.48      secondinupair: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(secondinupair,definition,
% 2.28/1.48      ( secondinupair
% 2.28/1.48      = ( ! [Xx: $i,Xy: $i] : ( in @ Xy @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setukpairIL_type,type,
% 2.28/1.48      setukpairIL: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setukpairIL,definition,
% 2.28/1.48      ( setukpairIL
% 2.28/1.48      = ( ! [Xx: $i,Xy: $i] : ( in @ Xx @ ( setunion @ ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setukpairIR_type,type,
% 2.28/1.48      setukpairIR: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setukpairIR,definition,
% 2.28/1.48      ( setukpairIR
% 2.28/1.48      = ( ! [Xx: $i,Xy: $i] : ( in @ Xy @ ( setunion @ ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(kpairiskpair_type,type,
% 2.28/1.48      kpairiskpair: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(kpairiskpair,definition,
% 2.28/1.48      ( kpairiskpair
% 2.28/1.48      = ( ! [Xx: $i,Xy: $i] : ( iskpair @ ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(kpair_type,type,
% 2.28/1.48      kpair: $i > $i > $i ).
% 2.28/1.48  
% 2.28/1.48  thf(kpair,definition,
% 2.28/1.48      ( kpair
% 2.28/1.48      = ( ^ [Xx: $i,Xy: $i] : ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(kpairp_type,type,
% 2.28/1.48      kpairp: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(kpairp,definition,
% 2.28/1.48      ( kpairp
% 2.28/1.48      = ( ! [Xx: $i,Xy: $i] : ( iskpair @ ( kpair @ Xx @ Xy ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(cartprod_type,type,
% 2.28/1.48      cartprod: $i > $i > $i ).
% 2.28/1.48  
% 2.28/1.48  thf(singletonsubset_type,type,
% 2.28/1.48      singletonsubset: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(singletonsubset,definition,
% 2.28/1.48      ( singletonsubset
% 2.28/1.48      = ( ! [A: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ A )
% 2.28/1.48           => ( subset @ ( setadjoin @ Xx @ emptyset ) @ A ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(singletoninpowerset_type,type,
% 2.28/1.48      singletoninpowerset: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(singletoninpowerset,definition,
% 2.28/1.48      ( singletoninpowerset
% 2.28/1.48      = ( ! [A: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ A )
% 2.28/1.48           => ( in @ ( setadjoin @ Xx @ emptyset ) @ ( powerset @ A ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(singletoninpowunion_type,type,
% 2.28/1.48      singletoninpowunion: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(singletoninpowunion,definition,
% 2.28/1.48      ( singletoninpowunion
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ A )
% 2.28/1.48           => ( in @ ( setadjoin @ Xx @ emptyset ) @ ( powerset @ ( binunion @ A @ B ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(upairset2E_type,type,
% 2.28/1.48      upairset2E: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(upairset2E,definition,
% 2.28/1.48      ( upairset2E
% 2.28/1.48      = ( ! [Xx: $i,Xy: $i,Xz: $i] :
% 2.28/1.48            ( ( in @ Xz @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) )
% 2.28/1.48           => ( ( Xz = Xx )
% 2.28/1.48              | ( Xz = Xy ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(upairsubunion_type,type,
% 2.28/1.48      upairsubunion: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(upairsubunion,definition,
% 2.28/1.48      ( upairsubunion
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ A )
% 2.28/1.48           => ! [Xy: $i] :
% 2.28/1.48                ( ( in @ Xy @ B )
% 2.28/1.48               => ( subset @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ ( binunion @ A @ B ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(upairinpowunion_type,type,
% 2.28/1.48      upairinpowunion: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(upairinpowunion,definition,
% 2.28/1.48      ( upairinpowunion
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ A )
% 2.28/1.48           => ! [Xy: $i] :
% 2.28/1.48                ( ( in @ Xy @ B )
% 2.28/1.48               => ( in @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ ( powerset @ ( binunion @ A @ B ) ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(ubforcartprodlem1_type,type,
% 2.28/1.48      ubforcartprodlem1: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(ubforcartprodlem1,definition,
% 2.28/1.48      ( ubforcartprodlem1
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ A )
% 2.28/1.48           => ! [Xy: $i] :
% 2.28/1.48                ( ( in @ Xy @ B )
% 2.28/1.48               => ( subset @ ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) @ ( powerset @ ( binunion @ A @ B ) ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(ubforcartprodlem2_type,type,
% 2.28/1.48      ubforcartprodlem2: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(ubforcartprodlem2,definition,
% 2.28/1.48      ( ubforcartprodlem2
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ A )
% 2.28/1.48           => ! [Xy: $i] :
% 2.28/1.48                ( ( in @ Xy @ B )
% 2.28/1.48               => ( in @ ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) @ ( powerset @ ( powerset @ ( binunion @ A @ B ) ) ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(ubforcartprodlem3_type,type,
% 2.28/1.48      ubforcartprodlem3: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(ubforcartprodlem3,definition,
% 2.28/1.48      ( ubforcartprodlem3
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ A )
% 2.28/1.48           => ! [Xy: $i] :
% 2.28/1.48                ( ( in @ Xy @ B )
% 2.28/1.48               => ( in @ ( kpair @ Xx @ Xy ) @ ( powerset @ ( powerset @ ( binunion @ A @ B ) ) ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(cartprodpairin_type,type,
% 2.28/1.48      cartprodpairin: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(cartprodpairin,definition,
% 2.28/1.48      ( cartprodpairin
% 2.28/1.48      = ( ! [A: $i,B: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ A )
% 2.28/1.48           => ! [Xy: $i] :
% 2.28/1.48                ( ( in @ Xy @ B )
% 2.28/1.48               => ( in @ ( kpair @ Xx @ Xy ) @ ( cartprod @ A @ B ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(cartprodmempair1_type,type,
% 2.28/1.48      cartprodmempair1: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(cartprodmempair1,definition,
% 2.28/1.48      ( cartprodmempair1
% 2.28/1.48      = ( ! [A: $i,B: $i,Xu: $i] :
% 2.28/1.48            ( ( in @ Xu @ ( cartprod @ A @ B ) )
% 2.28/1.48           => ? [Xx: $i] :
% 2.28/1.48                ( ( in @ Xx @ A )
% 2.28/1.48                & ? [Xy: $i] :
% 2.28/1.48                    ( ( in @ Xy @ B )
% 2.28/1.48                    & ( Xu
% 2.28/1.48                      = ( kpair @ Xx @ Xy ) ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(cartprodmempair_type,type,
% 2.28/1.48      cartprodmempair: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(cartprodmempair,definition,
% 2.28/1.48      ( cartprodmempair
% 2.28/1.48      = ( ! [A: $i,B: $i,Xu: $i] :
% 2.28/1.48            ( ( in @ Xu @ ( cartprod @ A @ B ) )
% 2.28/1.48           => ( iskpair @ Xu ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setunionE2_type,type,
% 2.28/1.48      setunionE2: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setunionE2,definition,
% 2.28/1.48      ( setunionE2
% 2.28/1.48      = ( ! [A: $i,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ ( setunion @ A ) )
% 2.28/1.48           => ? [X: $i] :
% 2.28/1.48                ( ( in @ X @ A )
% 2.28/1.48                & ( in @ Xx @ X ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setunionsingleton1_type,type,
% 2.28/1.48      setunionsingleton1: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setunionsingleton1,definition,
% 2.28/1.48      ( setunionsingleton1
% 2.28/1.48      = ( ! [A: $i] : ( subset @ ( setunion @ ( setadjoin @ A @ emptyset ) ) @ A ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setunionsingleton2_type,type,
% 2.28/1.48      setunionsingleton2: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setunionsingleton2,definition,
% 2.28/1.48      ( setunionsingleton2
% 2.28/1.48      = ( ! [A: $i] : ( subset @ A @ ( setunion @ ( setadjoin @ A @ emptyset ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(setunionsingleton_type,type,
% 2.28/1.48      setunionsingleton: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(setunionsingleton,definition,
% 2.28/1.48      ( setunionsingleton
% 2.28/1.48      = ( ! [Xx: $i] :
% 2.28/1.48            ( ( setunion @ ( setadjoin @ Xx @ emptyset ) )
% 2.28/1.48            = Xx ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(singleton_type,type,
% 2.28/1.48      singleton: $i > $o ).
% 2.28/1.48  
% 2.28/1.48  thf(singleton,definition,
% 2.28/1.48      ( singleton
% 2.28/1.48      = ( ^ [A: $i] :
% 2.28/1.48          ? [Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ A )
% 2.28/1.48            & ( A
% 2.28/1.48              = ( setadjoin @ Xx @ emptyset ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(singletonprop_type,type,
% 2.28/1.48      singletonprop: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(singletonprop,definition,
% 2.28/1.48      ( singletonprop
% 2.28/1.48      = ( ! [A: $i,Xphi: $i > $o] :
% 2.28/1.48            ( ! [Xx: $i] :
% 2.28/1.48                ( ( in @ Xx @ A )
% 2.28/1.48               => ! [Xy: $i] :
% 2.28/1.48                    ( ( in @ Xy @ A )
% 2.28/1.48                   => ( ( Xphi @ Xx )
% 2.28/1.48                     => ( ( Xphi @ Xy )
% 2.28/1.48                       => ( Xx = Xy ) ) ) ) )
% 2.28/1.48           => ( ? [Xx: $i] :
% 2.28/1.48                  ( ( in @ Xx @ A )
% 2.28/1.48                  & ( Xphi @ Xx ) )
% 2.28/1.48             => ( singleton
% 2.28/1.48                @ ( dsetconstr @ A
% 2.28/1.48                  @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(ex1_type,type,
% 2.28/1.48      ex1: $i > ( $i > $o ) > $o ).
% 2.28/1.48  
% 2.28/1.48  thf(ex1,definition,
% 2.28/1.48      ( ex1
% 2.28/1.48      = ( ^ [A: $i,Xphi: $i > $o] :
% 2.28/1.48            ( singleton
% 2.28/1.48            @ ( dsetconstr @ A
% 2.28/1.48              @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(ex1E1_type,type,
% 2.28/1.48      ex1E1: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(ex1E1,definition,
% 2.28/1.48      ( ex1E1
% 2.28/1.48      = ( ! [A: $i,Xphi: $i > $o] :
% 2.28/1.48            ( ( ex1 @ A
% 2.28/1.48              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 2.28/1.48           => ? [Xx: $i] :
% 2.28/1.48                ( ( in @ Xx @ A )
% 2.28/1.48                & ( Xphi @ Xx ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(ex1I_type,type,
% 2.28/1.48      ex1I: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(ex1I,definition,
% 2.28/1.48      ( ex1I
% 2.28/1.48      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 2.28/1.48            ( ( in @ Xx @ A )
% 2.28/1.48           => ( ( Xphi @ Xx )
% 2.28/1.48             => ( ! [Xy: $i] :
% 2.28/1.48                    ( ( in @ Xy @ A )
% 2.28/1.48                   => ( ( Xphi @ Xy )
% 2.28/1.48                     => ( Xy = Xx ) ) )
% 2.28/1.48               => ( ex1 @ A
% 2.28/1.48                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(ex1I2_type,type,
% 2.28/1.48      ex1I2: $o ).
% 2.28/1.48  
% 2.28/1.48  thf(ex1I2,definition,
% 2.28/1.48      ( ex1I2
% 2.28/1.48      = ( ! [A: $i,Xphi: $i > $o] :
% 2.28/1.48            ( ! [Xx: $i] :
% 2.28/1.48                ( ( in @ Xx @ A )
% 2.28/1.48               => ! [Xy: $i] :
% 2.28/1.48                    ( ( in @ Xy @ A )
% 2.28/1.48                   => ( ( Xphi @ Xx )
% 2.28/1.48                     => ( ( Xphi @ Xy )
% 2.28/1.48                       => ( Xx = Xy ) ) ) ) )
% 2.28/1.48           => ( ? [Xx: $i] :
% 2.28/1.48                  ( ( in @ Xx @ A )
% 2.28/1.48                  & ( Xphi @ Xx ) )
% 2.28/1.48             => ( ex1 @ A
% 2.28/1.48                @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ) ).
% 2.28/1.48  
% 2.28/1.48  thf(singletonsuniq,conjecture,
% 2.28/1.48      ( setextAx
% 2.28/1.48     => ( emptysetAx
% 2.28/1.48       => ( setadjoinAx
% 2.28/1.48         => ( powersetAx
% 2.28/1.48           => ( setunionAx
% 2.28/1.48             => ( omega0Ax
% 2.28/1.48               => ( omegaSAx
% 2.28/1.48                 => ( omegaIndAx
% 2.28/1.48                   => ( replAx
% 2.28/1.48                     => ( foundationAx
% 2.28/1.48                       => ( wellorderingAx
% 2.28/1.48                         => ( descrp
% 2.28/1.48                           => ( dsetconstrI
% 2.28/1.48                             => ( dsetconstrEL
% 2.28/1.48                               => ( dsetconstrER
% 2.28/1.48                                 => ( exuE1
% 2.28/1.48                                   => ( prop2setE
% 2.28/1.48                                     => ( emptysetE
% 2.28/1.48                                       => ( emptysetimpfalse
% 2.28/1.48                                         => ( notinemptyset
% 2.28/1.48                                           => ( exuE3e
% 2.28/1.48                                             => ( setext
% 2.28/1.48                                               => ( emptyI
% 2.28/1.48                                                 => ( noeltsimpempty
% 2.28/1.48                                                   => ( setbeta
% 2.28/1.48                                                     => ( nonemptyE1
% 2.28/1.48                                                       => ( nonemptyI
% 2.28/1.48                                                         => ( nonemptyI1
% 2.28/1.48                                                           => ( setadjoinIL
% 2.28/1.48                                                             => ( emptyinunitempty
% 2.28/1.48                                                               => ( setadjoinIR
% 2.28/1.48                                                                 => ( setadjoinE
% 2.28/1.48                                                                   => ( setadjoinOr
% 2.28/1.48                                                                     => ( setoftrueEq
% 2.28/1.48                                                                       => ( powersetI
% 2.28/1.48                                                                         => ( emptyinPowerset
% 2.28/1.48                                                                           => ( emptyInPowerset
% 2.28/1.48                                                                             => ( powersetE
% 2.28/1.48                                                                               => ( setunionI
% 2.28/1.48                                                                                 => ( setunionE
% 2.28/1.48                                                                                   => ( subPowSU
% 2.28/1.48                                                                                     => ( exuE2
% 2.28/1.48                                                                                       => ( nonemptyImpWitness
% 2.28/1.48                                                                                         => ( uniqinunit
% 2.28/1.48                                                                                           => ( notinsingleton
% 2.28/1.48                                                                                             => ( eqinunit
% 2.28/1.48                                                                                               => ( singletonsswitch
% 2.28/1.48                                                                                                 => ( upairsetE
% 2.28/1.48                                                                                                   => ( upairsetIL
% 2.28/1.48                                                                                                     => ( upairsetIR
% 2.28/1.48                                                                                                       => ( emptyE1
% 2.28/1.48                                                                                                         => ( vacuousDall
% 2.28/1.48                                                                                                           => ( quantDeMorgan1
% 2.28/1.48                                                                                                             => ( quantDeMorgan2
% 2.28/1.48                                                                                                               => ( quantDeMorgan3
% 2.28/1.48                                                                                                                 => ( quantDeMorgan4
% 2.28/1.48                                                                                                                   => ( prop2setI
% 2.28/1.48                                                                                                                     => ( prop2set2propI
% 2.28/1.48                                                                                                                       => ( notdexE
% 2.28/1.48                                                                                                                         => ( notdallE
% 2.28/1.48                                                                                                                           => ( exuI1
% 2.28/1.48                                                                                                                             => ( exuI3
% 2.28/1.48                                                                                                                               => ( exuI2
% 2.28/1.48                                                                                                                                 => ( inCongP
% 2.28/1.48                                                                                                                                   => ( in__Cong
% 2.28/1.48                                                                                                                                     => ( exuE3u
% 2.28/1.48                                                                                                                                       => ( exu__Cong
% 2.28/1.48                                                                                                                                         => ( emptyset__Cong
% 2.28/1.48                                                                                                                                           => ( setadjoin__Cong
% 2.28/1.48                                                                                                                                             => ( powerset__Cong
% 2.28/1.48                                                                                                                                               => ( setunion__Cong
% 2.28/1.48                                                                                                                                                 => ( omega__Cong
% 2.28/1.48                                                                                                                                                   => ( exuEu
% 2.28/1.48                                                                                                                                                     => ( descr__Cong
% 2.28/1.48                                                                                                                                                       => ( dsetconstr__Cong
% 2.28/1.48                                                                                                                                                         => ( subsetI1
% 2.28/1.48                                                                                                                                                           => ( eqimpsubset2
% 2.28/1.48                                                                                                                                                             => ( eqimpsubset1
% 2.28/1.48                                                                                                                                                               => ( subsetI2
% 2.28/1.48                                                                                                                                                                 => ( emptysetsubset
% 2.28/1.48                                                                                                                                                                   => ( subsetE
% 2.28/1.48                                                                                                                                                                     => ( subsetE2
% 2.28/1.48                                                                                                                                                                       => ( notsubsetI
% 2.28/1.48                                                                                                                                                                         => ( notequalI1
% 2.28/1.48                                                                                                                                                                           => ( notequalI2
% 2.28/1.48                                                                                                                                                                             => ( subsetRefl
% 2.28/1.48                                                                                                                                                                               => ( subsetTrans
% 2.28/1.48                                                                                                                                                                                 => ( setadjoinSub
% 2.28/1.48                                                                                                                                                                                   => ( setadjoinSub2
% 2.28/1.48                                                                                                                                                                                     => ( subset2powerset
% 2.28/1.48                                                                                                                                                                                       => ( setextsub
% 2.28/1.48                                                                                                                                                                                         => ( subsetemptysetimpeq
% 2.28/1.48                                                                                                                                                                                           => ( powersetI1
% 2.28/1.48                                                                                                                                                                                             => ( powersetE1
% 2.28/1.48                                                                                                                                                                                               => ( inPowerset
% 2.28/1.48                                                                                                                                                                                                 => ( powersetsubset
% 2.28/1.48                                                                                                                                                                                                   => ( sepInPowerset
% 2.28/1.48                                                                                                                                                                                                     => ( sepSubset
% 2.28/1.48                                                                                                                                                                                                       => ( binunionIL
% 2.28/1.48                                                                                                                                                                                                         => ( upairset2IR
% 2.28/1.48                                                                                                                                                                                                           => ( binunionIR
% 2.28/1.48                                                                                                                                                                                                             => ( binunionEcases
% 2.28/1.48                                                                                                                                                                                                               => ( binunionE
% 2.28/1.48                                                                                                                                                                                                                 => ( binunionLsub
% 2.28/1.48                                                                                                                                                                                                                   => ( binunionRsub
% 2.28/1.48                                                                                                                                                                                                                     => ( binintersectI
% 2.28/1.48                                                                                                                                                                                                                       => ( binintersectSubset5
% 2.28/1.48                                                                                                                                                                                                                         => ( binintersectEL
% 2.28/1.48                                                                                                                                                                                                                           => ( binintersectLsub
% 2.28/1.48                                                                                                                                                                                                                             => ( binintersectSubset2
% 2.28/1.48                                                                                                                                                                                                                               => ( binintersectSubset3
% 2.28/1.48                                                                                                                                                                                                                                 => ( binintersectER
% 2.28/1.48                                                                                                                                                                                                                                   => ( disjointsetsI1
% 2.28/1.48                                                                                                                                                                                                                                     => ( binintersectRsub
% 2.28/1.48                                                                                                                                                                                                                                       => ( binintersectSubset4
% 2.28/1.48                                                                                                                                                                                                                                         => ( binintersectSubset1
% 2.28/1.48                                                                                                                                                                                                                                           => ( bs114d
% 2.28/1.48                                                                                                                                                                                                                                             => ( setminusI
% 2.28/1.48                                                                                                                                                                                                                                               => ( setminusEL
% 2.28/1.48                                                                                                                                                                                                                                                 => ( setminusER
% 2.28/1.48                                                                                                                                                                                                                                                   => ( setminusSubset2
% 2.28/1.48                                                                                                                                                                                                                                                     => ( setminusERneg
% 2.28/1.48                                                                                                                                                                                                                                                       => ( setminusELneg
% 2.28/1.48                                                                                                                                                                                                                                                         => ( setminusILneg
% 2.28/1.48                                                                                                                                                                                                                                                           => ( setminusIRneg
% 2.28/1.48                                                                                                                                                                                                                                                             => ( setminusLsub
% 2.28/1.48                                                                                                                                                                                                                                                               => ( setminusSubset1
% 2.28/1.48                                                                                                                                                                                                                                                                 => ( symdiffE
% 2.28/1.48                                                                                                                                                                                                                                                                   => ( symdiffI1
% 2.28/1.48                                                                                                                                                                                                                                                                     => ( symdiffI2
% 2.28/1.48                                                                                                                                                                                                                                                                       => ( symdiffIneg1
% 2.28/1.48                                                                                                                                                                                                                                                                         => ( symdiffIneg2
% 2.28/1.48                                                                                                                                                                                                                                                                           => ( secondinupair
% 2.28/1.48                                                                                                                                                                                                                                                                             => ( setukpairIL
% 2.28/1.48                                                                                                                                                                                                                                                                               => ( setukpairIR
% 2.28/1.48                                                                                                                                                                                                                                                                                 => ( kpairiskpair
% 2.28/1.48                                                                                                                                                                                                                                                                                   => ( kpairp
% 2.28/1.48                                                                                                                                                                                                                                                                                     => ( singletonsubset
% 2.28/1.48                                                                                                                                                                                                                                                                                       => ( singletoninpowerset
% 2.28/1.48                                                                                                                                                                                                                                                                                         => ( singletoninpowunion
% 2.28/1.48                                                                                                                                                                                                                                                                                           => ( upairset2E
% 2.28/1.48                                                                                                                                                                                                                                                                                             => ( upairsubunion
% 2.28/1.48                                                                                                                                                                                                                                                                                               => ( upairinpowunion
% 2.28/1.48                                                                                                                                                                                                                                                                                                 => ( ubforcartprodlem1
% 2.28/1.48                                                                                                                                                                                                                                                                                                   => ( ubforcartprodlem2
% 2.28/1.48                                                                                                                                                                                                                                                                                                     => ( ubforcartprodlem3
% 2.28/1.48                                                                                                                                                                                                                                                                                                       => ( cartprodpairin
% 2.28/1.48                                                                                                                                                                                                                                                                                                         => ( cartprodmempair1
% 2.28/1.48                                                                                                                                                                                                                                                                                                           => ( cartprodmempair
% 2.28/1.48                                                                                                                                                                                                                                                                                                             => ( setunionE2
% 2.28/1.48                                                                                                                                                                                                                                                                                                               => ( setunionsingleton1
% 2.28/1.48                                                                                                                                                                                                                                                                                                                 => ( setunionsingleton2
% 2.28/1.48                                                                                                                                                                                                                                                                                                                   => ( setunionsingleton
% 2.28/1.48                                                                                                                                                                                                                                                                                                                     => ( singletonprop
% 2.28/1.48                                                                                                                                                                                                                                                                                                                       => ( ex1E1
% 2.28/1.48                                                                                                                                                                                                                                                                                                                         => ( ex1I
% 2.28/1.48                                                                                                                                                                                                                                                                                                                           => ( ex1I2
% 2.28/1.48                                                                                                                                                                                                                                                                                                                             => ! [Xx: $i,Xy: $i] :
% 2.28/1.48                                                                                                                                                                                                                                                                                                                                  ( ( ( setadjoin @ Xx @ emptyset )
% 2.28/1.48                                                                                                                                                                                                                                                                                                                                    = ( setadjoin @ Xy @ emptyset ) )
% 2.28/1.48                                                                                                                                                                                                                                                                                                                                 => ( Xx = Xy ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ).
% 2.28/1.48  ------------------------
% 2.28/1.49  % (27067)lrs+1002_1:8_bd=off:fd=off:hud=10:tnu=1:i=183:si=on:rtra=on_0 on DTF2THF_26966 for (2999ds/183Mi)
% 2.40/1.50  % (27071)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_26966 for (2999ds/2Mi)
% 2.40/1.50  % (27070)lrs+10_1:1_au=on:inj=on:i=2:si=on:rtra=on_0 on DTF2THF_26966 for (2999ds/2Mi)
% 2.40/1.50  % (27068)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_26966 for (2999ds/4Mi)
% 2.40/1.50  % (27069)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_26966 for (2999ds/27Mi)
% 2.40/1.50  % (27072)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_26966 for (2999ds/275Mi)
% 2.40/1.50  % (27073)lrs+1004_1:128_cond=on:e2e=on:sp=weighted_frequency:i=18:si=on:rtra=on_0 on DTF2THF_26966 for (2999ds/18Mi)
% 2.40/1.50  % (27071)Instruction limit reached!
% 2.40/1.50  % (27071)------------------------------
% 2.40/1.50  % (27071)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.40/1.50  % (27071)Termination reason: Unknown
% 2.40/1.50  % (27071)Termination phase: shuffling
% 2.40/1.50  
% 2.40/1.50  % (27071)Memory used [KB]: 1279
% 2.40/1.50  % (27071)Time elapsed: 0.002 s
% 2.40/1.50  % (27071)Instructions burned: 2 (million)
% 2.40/1.50  % (27071)------------------------------
% 2.40/1.50  % (27071)------------------------------
% 2.40/1.50  % (27070)Instruction limit reached!
% 2.40/1.50  % (27070)------------------------------
% 2.40/1.50  % (27070)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.40/1.50  % (27070)Termination reason: Unknown
% 2.40/1.50  % (27070)Termination phase: shuffling
% 2.40/1.50  
% 2.40/1.50  % (27070)Memory used [KB]: 1279
% 2.40/1.50  % (27070)Time elapsed: 0.003 s
% 2.40/1.50  % (27070)Instructions burned: 3 (million)
% 2.40/1.50  % (27070)------------------------------
% 2.40/1.50  % (27070)------------------------------
% 2.40/1.50  % (27068)Instruction limit reached!
% 2.40/1.50  % (27068)------------------------------
% 2.40/1.50  % (27068)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.40/1.50  % (27068)Termination reason: Unknown
% 2.40/1.50  % (27068)Termination phase: shuffling
% 2.40/1.50  
% 2.40/1.50  % (27068)Memory used [KB]: 1279
% 2.40/1.50  % (27068)Time elapsed: 0.004 s
% 2.40/1.50  % (27068)Instructions burned: 5 (million)
% 2.40/1.50  % (27068)------------------------------
% 2.40/1.50  % (27068)------------------------------
% 2.40/1.51  % (27073)Instruction limit reached!
% 2.40/1.51  % (27073)------------------------------
% 2.40/1.51  % (27073)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.40/1.51  % (27073)Termination reason: Unknown
% 2.40/1.51  % (27073)Termination phase: Property scanning
% 2.40/1.51  
% 2.40/1.51  % (27073)Memory used [KB]: 1535
% 2.40/1.51  % (27073)Time elapsed: 0.011 s
% 2.40/1.51  % (27073)Instructions burned: 19 (million)
% 2.40/1.51  % (27073)------------------------------
% 2.40/1.51  % (27073)------------------------------
% 2.40/1.51  % (27069)Instruction limit reached!
% 2.40/1.51  % (27069)------------------------------
% 2.40/1.51  % (27069)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.40/1.51  % (27069)Termination reason: Unknown
% 2.40/1.51  % (27069)Termination phase: Property scanning
% 2.40/1.51  
% 2.40/1.51  % (27069)Memory used [KB]: 1791
% 2.40/1.51  % (27069)Time elapsed: 0.014 s
% 2.40/1.51  % (27069)Instructions burned: 27 (million)
% 2.40/1.51  % (27069)------------------------------
% 2.40/1.51  % (27069)------------------------------
% 2.40/1.52  % (27074)lrs+10_1:1_bet=on:cnfonf=off:fd=off:hud=5:inj=on:i=3:si=on:rtra=on_0 on DTF2THF_26966 for (2999ds/3Mi)
% 2.40/1.52  % (27075)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_26966 for (2999ds/37Mi)
% 2.40/1.52  % (27074)Instruction limit reached!
% 2.40/1.52  % (27074)------------------------------
% 2.40/1.52  % (27074)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.40/1.52  % (27074)Termination reason: Unknown
% 2.40/1.52  % (27074)Termination phase: shuffling
% 2.40/1.52  
% 2.40/1.52  % (27074)Memory used [KB]: 1279
% 2.40/1.52  % (27074)Time elapsed: 0.003 s
% 2.40/1.52  % (27074)Instructions burned: 3 (million)
% 2.40/1.52  % (27076)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_26966 for (2999ds/15Mi)
% 2.40/1.52  % (27074)------------------------------
% 2.40/1.52  % (27074)------------------------------
% 2.40/1.53  % (27076)Instruction limit reached!
% 2.40/1.53  % (27076)------------------------------
% 2.40/1.53  % (27076)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.40/1.53  % (27076)Termination reason: Unknown
% 2.40/1.53  % (27076)Termination phase: Property scanning
% 2.40/1.53  
% 2.40/1.53  % (27076)Memory used [KB]: 1535
% 2.40/1.53  % (27076)Time elapsed: 0.009 s
% 2.40/1.53  % (27076)Instructions burned: 16 (million)
% 2.40/1.53  % (27076)------------------------------
% 2.40/1.53  % (27076)------------------------------
% 2.40/1.53  % (27077)dis+21_1:1_cbe=off:cnfonf=off:fs=off:fsr=off:hud=1:inj=on:i=3:si=on:rtra=on_0 on DTF2THF_26966 for (2999ds/3Mi)
% 2.40/1.53  % (27077)Instruction limit reached!
% 2.40/1.53  % (27077)------------------------------
% 2.40/1.53  % (27077)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.40/1.53  % (27077)Termination reason: Unknown
% 2.40/1.53  % (27077)Termination phase: shuffling
% 2.40/1.53  
% 2.40/1.53  % (27077)Memory used [KB]: 1279
% 2.40/1.53  % (27077)Time elapsed: 0.003 s
% 2.40/1.53  % (27077)Instructions burned: 4 (million)
% 2.40/1.53  % (27077)------------------------------
% 2.40/1.53  % (27077)------------------------------
% 2.40/1.53  % (27078)lrs+1002_1:1_aac=none:au=on:cnfonf=lazy_gen:plsq=on:plsqc=1:plsqr=4203469,65536:i=1041:si=on:rtra=on_0 on DTF2THF_26966 for (2999ds/1041Mi)
% 2.40/1.53  % (27075)Instruction limit reached!
% 2.40/1.53  % (27075)------------------------------
% 2.40/1.53  % (27075)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.40/1.53  % (27075)Termination reason: Unknown
% 2.40/1.53  % (27075)Termination phase: Property scanning
% 2.40/1.53  
% 2.40/1.53  % (27075)Memory used [KB]: 1791
% 2.40/1.53  % (27075)Time elapsed: 0.018 s
% 2.40/1.53  % (27075)Instructions burned: 38 (million)
% 2.40/1.53  % (27075)------------------------------
% 2.40/1.53  % (27075)------------------------------
% 2.40/1.54  % (27079)lrs+10_1:1_av=off:chr=on:plsq=on:slsq=on:i=7:si=on:rtra=on_0 on DTF2THF_26966 for (2999ds/7Mi)
% 2.40/1.54  % (27079)Instruction limit reached!
% 2.40/1.54  % (27079)------------------------------
% 2.40/1.54  % (27079)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.40/1.54  % (27079)Termination reason: Unknown
% 2.40/1.54  % (27079)Termination phase: shuffling
% 2.40/1.54  
% 2.40/1.54  % (27079)Memory used [KB]: 1407
% 2.40/1.54  % (27079)Time elapsed: 0.005 s
% 2.40/1.54  % (27079)Instructions burned: 8 (million)
% 2.40/1.54  % (27079)------------------------------
% 2.40/1.54  % (27079)------------------------------
% 2.40/1.54  % (27080)lrs+10_1:1_acc=on:amm=sco:cs=on:tgt=full:i=16:si=on:rtra=on_0 on DTF2THF_26966 for (2999ds/16Mi)
% 2.40/1.54  % (27081)lrs+21_1:1_au=on:cnfonf=off:fd=preordered:fe=off:fsr=off:hud=11:inj=on:kws=precedence:s2pl=no:sp=weighted_frequency:tgt=full:i=3:si=on:rtra=on_0 on DTF2THF_26966 for (2999ds/3Mi)
% 2.40/1.54  % (27067)Instruction limit reached!
% 2.40/1.54  % (27067)------------------------------
% 2.40/1.54  % (27067)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.40/1.54  % (27067)Termination reason: Unknown
% 2.40/1.54  % (27067)Termination phase: Saturation
% 2.40/1.54  
% 2.40/1.54  % (27067)Memory used [KB]: 7419
% 2.40/1.54  % (27067)Time elapsed: 0.052 s
% 2.40/1.54  % (27067)Instructions burned: 185 (million)
% 2.40/1.54  % (27067)------------------------------
% 2.40/1.54  % (27067)------------------------------
% 2.40/1.55  % (27081)Instruction limit reached!
% 2.40/1.55  % (27081)------------------------------
% 2.40/1.55  % (27081)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.40/1.55  % (27081)Termination reason: Unknown
% 2.40/1.55  % (27081)Termination phase: shuffling
% 2.40/1.55  
% 2.40/1.55  % (27081)Memory used [KB]: 1279
% 2.40/1.55  % (27081)Time elapsed: 0.003 s
% 2.40/1.55  % (27081)Instructions burned: 4 (million)
% 2.40/1.55  % (27081)------------------------------
% 2.40/1.55  % (27081)------------------------------
% 2.40/1.55  % (27080)Instruction limit reached!
% 2.40/1.55  % (27080)------------------------------
% 2.40/1.55  % (27080)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.40/1.55  % (27080)Termination reason: Unknown
% 2.40/1.55  % (27080)Termination phase: shuffling
% 2.40/1.55  
% 2.40/1.55  % (27080)Memory used [KB]: 1535
% 2.40/1.55  % (27080)Time elapsed: 0.009 s
% 2.40/1.55  % (27080)Instructions burned: 16 (million)
% 2.40/1.55  % (27080)------------------------------
% 2.40/1.55  % (27080)------------------------------
% 2.40/1.55  % (27082)lrs+2_1:1_apa=on:au=on:bd=preordered:cnfonf=off:cs=on:ixr=off:sos=on:i=3:si=on:rtra=on_0 on DTF2THF_26966 for (2999ds/3Mi)
% 2.40/1.55  % (27082)Instruction limit reached!
% 2.40/1.55  % (27082)------------------------------
% 2.40/1.55  % (27082)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.40/1.55  % (27082)Termination reason: Unknown
% 2.40/1.55  % (27082)Termination phase: shuffling
% 2.40/1.55  
% 2.40/1.55  % (27082)Memory used [KB]: 1279
% 2.40/1.55  % (27082)Time elapsed: 0.003 s
% 2.40/1.55  % (27082)Instructions burned: 3 (million)
% 2.40/1.55  % (27082)------------------------------
% 2.40/1.55  % (27082)------------------------------
% 2.40/1.55  % (27084)dis+1002_1:1_add=large:cnfonf=lazy_pi_sigma_gen:fe=off:prag=on:i=3:si=on:rtra=on_0 on DTF2THF_26966 for (2999ds/3Mi)
% 2.40/1.56  % (27084)Instruction limit reached!
% 2.40/1.56  % (27084)------------------------------
% 2.40/1.56  % (27084)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.40/1.56  % (27084)Termination reason: Unknown
% 2.40/1.56  % (27084)Termination phase: shuffling
% 2.40/1.56  
% 2.40/1.56  % (27084)Memory used [KB]: 1279
% 2.40/1.56  % (27084)Time elapsed: 0.002 s
% 2.40/1.56  % (27084)Instructions burned: 3 (million)
% 2.40/1.56  % (27084)------------------------------
% 2.40/1.56  % (27084)------------------------------
% 2.40/1.56  % (27083)lrs+10_1:1_cnfonf=off:cs=on:hud=3:prag=on:sup=off:i=7:si=on:rtra=on_0 on DTF2THF_26966 for (2999ds/7Mi)
% 2.40/1.56  % (27083)Instruction limit reached!
% 2.40/1.56  % (27083)------------------------------
% 2.40/1.56  % (27083)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.40/1.56  % (27083)Termination reason: Unknown
% 2.40/1.56  % (27083)Termination phase: shuffling
% 2.40/1.56  
% 2.40/1.56  % (27083)Memory used [KB]: 1407
% 2.40/1.56  % (27083)Time elapsed: 0.005 s
% 2.40/1.56  % (27083)Instructions burned: 8 (million)
% 2.40/1.56  % (27083)------------------------------
% 2.40/1.56  % (27083)------------------------------
% 2.40/1.56  % (27087)lrs+10_1:1_e2e=on:sd=1:sgt=8:ss=axioms:i=710:si=on:rtra=on_0 on DTF2THF_26966 for (2999ds/710Mi)
% 2.40/1.57  % (27086)lrs+1002_1:1_anc=all_dependent:au=on:cbe=off:fde=unused:ntd=on:i=18:si=on:rtra=on_0 on DTF2THF_26966 for (2999ds/18Mi)
% 2.40/1.57  % (27085)dis+1004_1:1_cha=on:cs=on:fe=off:hud=1:i=4:si=on:rtra=on_0 on DTF2THF_26966 for (2999ds/4Mi)
% 2.40/1.57  % (27085)Instruction limit reached!
% 2.40/1.57  % (27085)------------------------------
% 2.40/1.57  % (27085)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.40/1.57  % (27085)Termination reason: Unknown
% 2.40/1.57  % (27085)Termination phase: shuffling
% 2.40/1.57  
% 2.40/1.57  % (27085)Memory used [KB]: 1279
% 2.40/1.57  % (27085)Time elapsed: 0.003 s
% 2.40/1.57  % (27085)Instructions burned: 4 (million)
% 2.40/1.57  % (27085)------------------------------
% 2.40/1.57  % (27085)------------------------------
% 2.40/1.57  % (27088)lrs+1004_1:1_chr=on:prag=on:i=6:si=on:rtra=on_0 on DTF2THF_26966 for (2999ds/6Mi)
% 2.40/1.57  % (27088)Instruction limit reached!
% 2.40/1.57  % (27088)------------------------------
% 2.40/1.57  % (27088)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.40/1.57  % (27088)Termination reason: Unknown
% 2.40/1.57  % (27088)Termination phase: shuffling
% 2.40/1.57  
% 2.40/1.57  % (27088)Memory used [KB]: 1279
% 2.40/1.57  % (27088)Time elapsed: 0.004 s
% 2.40/1.57  % (27088)Instructions burned: 6 (million)
% 2.40/1.57  % (27088)------------------------------
% 2.40/1.57  % (27088)------------------------------
% 2.40/1.57  % (27086)Instruction limit reached!
% 2.40/1.57  % (27086)------------------------------
% 2.40/1.57  % (27086)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.40/1.57  % (27086)Termination reason: Unknown
% 2.40/1.57  % (27086)Termination phase: shuffling
% 2.40/1.57  
% 2.40/1.57  % (27086)Memory used [KB]: 1663
% 2.40/1.57  % (27086)Time elapsed: 0.010 s
% 2.40/1.57  % (27086)Instructions burned: 19 (million)
% 2.40/1.57  % (27086)------------------------------
% 2.40/1.57  % (27086)------------------------------
% 2.40/1.58  % (27089)dis+1002_5:1_au=on:bd=off:e2e=on:fde=none:fs=off:fsr=off:sos=on:i=902:si=on:rtra=on_0 on DTF2THF_26966 for (2999ds/902Mi)
% 2.40/1.58  % (27090)dis+21_1:8_apa=on:cnfonf=off:fd=off:fsr=off:hud=0:ins=1:kws=inv_frequency:nwc=10.0:ss=axioms:st=5.0:i=21:si=on:rtra=on_0 on DTF2THF_26966 for (2999ds/21Mi)
% 2.40/1.59  % (27091)dis+10_1:1_cnfonf=lazy_gen:fe=off:i=5:si=on:rtra=on_0 on DTF2THF_26966 for (2999ds/5Mi)
% 2.40/1.59  % (27092)lrs+2_1:1_cnfonf=lazy_not_gen_be_off:cs=on:fe=off:hud=10:inj=on:ins=3:plsq=on:plsqc=1:sd=10:ss=axioms:tnu=1:i=6:si=on:rtra=on_0 on DTF2THF_26966 for (2999ds/6Mi)
% 2.40/1.59  % (27091)Instruction limit reached!
% 2.40/1.59  % (27091)------------------------------
% 2.40/1.59  % (27091)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.40/1.59  % (27091)Termination reason: Unknown
% 2.40/1.59  % (27091)Termination phase: shuffling
% 2.40/1.59  
% 2.40/1.59  % (27091)Memory used [KB]: 1279
% 2.40/1.59  % (27091)Time elapsed: 0.004 s
% 2.40/1.59  % (27091)Instructions burned: 6 (million)
% 2.40/1.59  % (27091)------------------------------
% 2.40/1.59  % (27091)------------------------------
% 2.40/1.59  % (27092)Instruction limit reached!
% 2.40/1.59  % (27092)------------------------------
% 2.40/1.59  % (27092)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.40/1.59  % (27092)Termination reason: Unknown
% 2.40/1.59  % (27092)Termination phase: shuffling
% 2.40/1.59  
% 2.40/1.59  % (27092)Memory used [KB]: 1279
% 2.40/1.59  % (27092)Time elapsed: 0.004 s
% 2.40/1.59  % (27092)Instructions burned: 6 (million)
% 2.40/1.59  % (27092)------------------------------
% 2.40/1.59  % (27092)------------------------------
% 2.40/1.59  % (27090)Instruction limit reached!
% 2.40/1.59  % (27090)------------------------------
% 2.40/1.59  % (27090)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.40/1.59  % (27090)Termination reason: Unknown
% 2.40/1.59  % (27090)Termination phase: shuffling
% 2.40/1.59  
% 2.40/1.59  % (27090)Memory used [KB]: 1663
% 2.40/1.59  % (27090)Time elapsed: 0.011 s
% 2.40/1.59  % (27090)Instructions burned: 21 (million)
% 2.40/1.59  % (27090)------------------------------
% 2.40/1.59  % (27090)------------------------------
% 2.40/1.61  % (27093)lrs+1002_1:128_au=on:c=on:fsr=off:piset=equals:i=377:si=on:rtra=on_0 on DTF2THF_26966 for (2998ds/377Mi)
% 2.40/1.61  % (27095)lrs+10_1:1_cnfonf=lazy_not_be_gen:ntd=on:sp=const_min:ss=axioms:sup=off:i=19:si=on:rtra=on_0 on DTF2THF_26966 for (2998ds/19Mi)
% 2.40/1.61  % (27094)dis+1010_1:4_atotf=0.2:c=on:cbe=off:cnfonf=lazy_simp:fe=off:ins=2:ntd=on:s2a=on:s2at=5.0:sgt=5:ss=axioms:st=1.5:i=779:si=on:rtra=on_0 on DTF2THF_26966 for (2998ds/779Mi)
% 2.40/1.62  % (27095)Instruction limit reached!
% 2.40/1.62  % (27095)------------------------------
% 2.40/1.62  % (27095)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.40/1.62  % (27095)Termination reason: Unknown
% 2.40/1.62  % (27095)Termination phase: shuffling
% 2.40/1.62  
% 2.40/1.62  % (27095)Memory used [KB]: 1663
% 2.40/1.62  % (27095)Time elapsed: 0.010 s
% 2.40/1.62  % (27095)Instructions burned: 19 (million)
% 2.40/1.62  % (27095)------------------------------
% 2.40/1.62  % (27095)------------------------------
% 2.40/1.63  % (27087)First to succeed.
% 2.40/1.63  % (27072)Also succeeded, but the first one will report.
% 2.40/1.63  % (27096)lrs+1010_1:1_au=on:s2a=on:sd=1:sgt=50:ss=axioms:i=879:si=on:rtra=on_0 on DTF2THF_26966 for (2998ds/879Mi)
% 2.40/1.64  % (27087)Refutation found. Thanks to Tanya!
% 2.40/1.64  % SZS status Theorem for DTF2THF_26966
% 2.40/1.64  % SZS output start Proof for DTF2THF_26966
% 2.40/1.64  thf(func_def_0, type, in: $i > $i > $o).
% 2.40/1.64  thf(func_def_1, type, exu: ($i > $o) > $o).
% 2.40/1.64  thf(func_def_6, type, setadjoin: $i > $i > $i).
% 2.40/1.64  thf(func_def_8, type, powerset: $i > $i).
% 2.40/1.64  thf(func_def_10, type, setunion: $i > $i).
% 2.40/1.64  thf(func_def_19, type, descr: ($i > $o) > $i).
% 2.40/1.64  thf(func_def_21, type, dsetconstr: $i > ($i > $o) > $i).
% 2.40/1.64  thf(func_def_26, type, prop2set: $o > $i).
% 2.40/1.64  thf(func_def_36, type, nonempty: $i > $o).
% 2.40/1.64  thf(func_def_69, type, set2prop: $i > $o).
% 2.40/1.64  thf(func_def_88, type, subset: $i > $i > $o).
% 2.40/1.64  thf(func_def_89, type, disjoint: $i > $i > $o).
% 2.40/1.64  thf(func_def_90, type, setsmeet: $i > $i > $o).
% 2.40/1.64  thf(func_def_114, type, binunion: $i > $i > $i).
% 2.40/1.64  thf(func_def_122, type, binintersect: $i > $i > $i).
% 2.40/1.64  thf(func_def_135, type, regular: $i > $o).
% 2.40/1.64  thf(func_def_136, type, setminus: $i > $i > $i).
% 2.40/1.64  thf(func_def_147, type, symdiff: $i > $i > $i).
% 2.40/1.64  thf(func_def_153, type, iskpair: $i > $o).
% 2.40/1.64  thf(func_def_158, type, kpair: $i > $i > $i).
% 2.40/1.64  thf(func_def_160, type, cartprod: $i > $i > $i).
% 2.40/1.64  thf(func_def_177, type, singleton: $i > $o).
% 2.40/1.64  thf(func_def_179, type, ex1: $i > ($i > $o) > $o).
% 2.40/1.64  thf(func_def_195, type, sP0: $i > $o > $i > $i > $o).
% 2.40/1.64  thf(func_def_198, type, sP3: $i > $i > $o).
% 2.40/1.64  thf(func_def_199, type, sP4: $i > $o).
% 2.40/1.64  thf(func_def_200, type, sP5: $i > $i > $o).
% 2.40/1.64  thf(func_def_201, type, sP6: $i > $i > $o).
% 2.40/1.64  thf(func_def_207, type, sK12: $i > $o).
% 2.40/1.64  thf(func_def_209, type, sK14: ($i > $o) > $i > $i).
% 2.40/1.64  thf(func_def_216, type, sK21: $i > $i > $i).
% 2.40/1.64  thf(func_def_217, type, sK22: $i > $i > $i).
% 2.40/1.64  thf(func_def_222, type, sK27: $i > $o).
% 2.40/1.64  thf(func_def_225, type, sK30: $i > $i > $i).
% 2.40/1.64  thf(func_def_234, type, sK39: $i > $i > $i).
% 2.40/1.64  thf(func_def_235, type, sK40: $i > $o).
% 2.40/1.64  thf(func_def_236, type, sK41: ($i > $o) > $i).
% 2.40/1.64  thf(func_def_239, type, sK44: $i > $o).
% 2.40/1.64  thf(func_def_256, type, sK61: ($i > $o) > ($i > $o) > $i).
% 2.40/1.64  thf(func_def_257, type, sK62: ($i > $o) > ($i > $o) > $i).
% 2.40/1.64  thf(func_def_258, type, sK63: $i > $o).
% 2.40/1.64  thf(func_def_259, type, sK64: $i > $o).
% 2.40/1.64  thf(func_def_274, type, sK79: $i > $i).
% 2.40/1.64  thf(func_def_279, type, sK84: $i > $o).
% 2.40/1.64  thf(func_def_285, type, sK90: $i > $i).
% 2.40/1.64  thf(func_def_289, type, sK94: $i > $o).
% 2.40/1.64  thf(func_def_291, type, sK96: ($i > $o) > ($i > $o) > $i > $i > $i).
% 2.40/1.64  thf(func_def_292, type, sK97: ($i > $o) > ($i > $o) > $i > $i > $i).
% 2.40/1.64  thf(func_def_295, type, sK100: $i > $o).
% 2.40/1.64  thf(func_def_296, type, sK101: $i > $o).
% 2.40/1.64  thf(func_def_297, type, sK102: $i > $o).
% 2.40/1.64  thf(func_def_298, type, sK103: $i > $i).
% 2.40/1.64  thf(func_def_299, type, sK104: ($i > $o) > $i).
% 2.40/1.64  thf(func_def_306, type, sK111: $i > $o).
% 2.40/1.64  thf(func_def_308, type, sK113: $i > ($i > $o) > $i).
% 2.40/1.64  thf(func_def_318, type, sK123: $i > $o).
% 2.40/1.64  thf(func_def_323, type, sK128: $i > $o).
% 2.40/1.64  thf(func_def_325, type, sK130: $i > ($i > $o) > $i).
% 2.40/1.64  thf(func_def_328, type, sK133: $i > $o).
% 2.40/1.64  thf(func_def_330, type, sK135: $i > ($i > $o) > $i).
% 2.40/1.64  thf(func_def_346, type, sK151: $i > $i > $i).
% 2.40/1.64  thf(func_def_376, type, sK181: $i > $i > $i > $i).
% 2.40/1.64  thf(func_def_377, type, sK182: $i > $i > $i > $i).
% 2.40/1.64  thf(func_def_381, type, sK186: ($i > $o) > ($i > $o) > $i).
% 2.40/1.64  thf(func_def_382, type, sK187: ($i > $o) > ($i > $o) > $i).
% 2.40/1.64  thf(func_def_383, type, sK188: $i > $o).
% 2.40/1.64  thf(func_def_384, type, sK189: $i > $o).
% 2.40/1.64  thf(func_def_417, type, sK222: ($i > $o) > $i > $i).
% 2.40/1.64  thf(func_def_419, type, sK224: $i > $o).
% 2.40/1.64  thf(func_def_424, type, sK229: $i > $i > $i).
% 2.40/1.64  thf(func_def_428, type, sK233: $i > $o).
% 2.40/1.64  thf(func_def_430, type, sK235: ($i > $o) > $i > $i).
% 2.40/1.64  thf(func_def_431, type, sK236: $i > $o).
% 2.40/1.64  thf(func_def_432, type, sK237: $i > $o).
% 2.40/1.64  thf(func_def_435, type, sK240: $i > ($i > $o) > $i).
% 2.40/1.64  thf(func_def_436, type, sK241: $i > $i).
% 2.40/1.64  thf(func_def_439, type, sK244: $i > $i).
% 2.40/1.64  thf(func_def_441, type, sK246: $i > $o).
% 2.40/1.64  thf(func_def_450, type, sK255: $o > $i > $i > $i).
% 2.40/1.64  thf(func_def_460, type, sK265: $i > $o).
% 2.40/1.64  thf(func_def_463, type, sK268: $i > ($i > $o) > $i).
% 2.40/1.64  thf(func_def_464, type, sK269: $i > ($i > $o) > $i).
% 2.40/1.64  thf(func_def_475, type, sK280: $i > $i > $i).
% 2.40/1.64  thf(func_def_481, type, sK286: $i > $i > $i).
% 2.40/1.64  thf(func_def_482, type, sK287: $i > $o).
% 2.40/1.64  thf(func_def_484, type, sK289: $i > $o).
% 2.40/1.64  thf(func_def_488, type, sK293: $i > $i > ($i > $o) > $i).
% 2.40/1.64  thf(func_def_489, type, sK294: $i > $o).
% 2.40/1.64  thf(func_def_492, type, sK297: $i > $i).
% 2.40/1.64  thf(func_def_522, type, sK327: $i > $o).
% 2.40/1.64  thf(func_def_525, type, sK330: $i > $i > $o).
% 2.40/1.64  thf(func_def_526, type, sK331: $i > $i).
% 2.40/1.64  thf(func_def_527, type, sK332: $i > $i).
% 2.40/1.64  thf(func_def_528, type, sK333: ($i > $i > $o) > $i > $i).
% 2.40/1.64  thf(func_def_529, type, sK334: ($i > $i > $o) > $i > $i).
% 2.40/1.64  thf(func_def_530, type, sK335: $i > ($i > $i > $o) > $i > $i).
% 2.40/1.64  thf(func_def_534, type, sK339: ($i > $o) > $i).
% 2.40/1.64  thf(func_def_535, type, sK340: ($i > $o) > $i).
% 2.40/1.64  thf(func_def_536, type, sK341: $i > $o).
% 2.40/1.64  thf(func_def_545, type, sK350: $i > $o).
% 2.40/1.64  thf(func_def_546, type, sK351: $i > $i > $i).
% 2.40/1.64  thf(func_def_557, type, sK362: $i > $i).
% 2.40/1.64  thf(func_def_570, type, sK375: $i > $i > $i).
% 2.40/1.64  thf(func_def_571, type, sK376: $i > $i > $i).
% 2.40/1.64  thf(func_def_572, type, sK377: $i > $i > $i).
% 2.40/1.64  thf(func_def_573, type, sK378: $i > $i > $i).
% 2.40/1.64  thf(func_def_574, type, sK379: $i > $i > $i).
% 2.40/1.64  thf(func_def_575, type, sK380: $i > $i > $i > $i).
% 2.40/1.64  thf(func_def_576, type, sK381: $i > $i).
% 2.40/1.64  thf(func_def_577, type, sK382: $i > $i).
% 2.40/1.64  thf(func_def_578, type, sK383: $i > $i).
% 2.40/1.64  thf(func_def_579, type, sK384: $i > $i).
% 2.40/1.64  thf(func_def_580, type, sK385: $i > $i > $i > $i).
% 2.40/1.64  thf(func_def_581, type, sK386: $i > $i > $i > $i).
% 2.40/1.64  thf(func_def_582, type, sK387: $i > $i > $i).
% 2.40/1.64  thf(func_def_583, type, sK388: $i > $i > $i).
% 2.40/1.64  thf(func_def_584, type, sK389: $i > $i > $i).
% 2.40/1.64  thf(func_def_586, type, sK391: $i > $i).
% 2.40/1.64  thf(func_def_587, type, sK392: $i > $i).
% 2.40/1.64  thf(func_def_588, type, sK393: $i > $i).
% 2.40/1.64  thf(func_def_592, type, sK397: $i > $i > $i).
% 2.40/1.64  thf(func_def_594, type, sK399: $i > $i).
% 2.40/1.64  thf(func_def_603, type, sK408: ($i > $o) > $i > $i).
% 2.40/1.64  thf(func_def_605, type, sK410: $i > $o).
% 2.40/1.64  thf(func_def_607, type, sK412: $i > $o).
% 2.40/1.64  thf(func_def_610, type, sK415: $i > ($i > $o) > $i).
% 2.40/1.64  thf(func_def_611, type, sK416: $i > ($i > $o) > $i).
% 2.40/1.64  thf(func_def_612, type, sK417: $i > $o).
% 2.40/1.64  thf(func_def_620, type, sK425: $i > $o).
% 2.40/1.64  thf(func_def_622, type, sK427: ($i > $o) > $i > $i).
% 2.40/1.64  thf(func_def_634, type, sK439: ($i > $o) > $i).
% 2.40/1.64  thf(func_def_635, type, sK440: $i > $o).
% 2.40/1.64  thf(func_def_636, type, sK441: $i > $i).
% 2.40/1.64  thf(func_def_638, type, ph443: !>[X0: $tType]:(X0)).
% 2.40/1.64  thf(f3196,plain,(
% 2.40/1.64    $false),
% 2.40/1.64    inference(subsumption_resolution,[status(thm)],[f3195,f1616])).
% 2.40/1.64  thf(f1616,plain,(
% 2.40/1.64    (sK35 != sK36)),
% 2.40/1.64    inference(cnf_transformation,[status(thm)],[f749])).
% 2.40/1.64  thf(f749,plain,(
% 2.40/1.64    (symdiffIneg1 = $true) & (emptysetsubset = $true) & (binintersectI = $true) & (setextAx = $true) & (setunionE = $true) & (dsetconstr__Cong = $true) & (in__Cong = $true) & (setminusER = $true) & (binintersectSubset4 = $true) & (upairset2E = $true) & (powersetsubset = $true) & (emptyInPowerset = $true) & (setminusLsub = $true) & (setextsub = $true) & ((sK35 != sK36) & ((setadjoin @ sK35 @ emptyset) = (setadjoin @ sK36 @ emptyset))) & (exuEu = $true) & (binintersectLsub = $true) & (subsetTrans = $true) & (prop2set2propI = $true) & (cartprodmempair = $true) & (subset2powerset = $true) & (binintersectEL = $true) & (emptysetAx = $true) & (vacuousDall = $true) & (setunionsingleton2 = $true) & (emptyinPowerset = $true) & (cartprodpairin = $true) & (quantDeMorgan1 = $true) & (exuE2 = $true) & (ex1I = $true) & (singletoninpowerset = $true) & (eqimpsubset2 = $true) & (binintersectER = $true) & (secondinupair = $true) & (cartprodmempair1 = $true) & (upairsetE = $true) & (notdallE = $true) & (notinsingleton = $true) & (setminusILneg = $true) & (singletonprop = $true) & (emptyinunitempty = $true) & (symdiffIneg2 = $true) & (setadjoinOr = $true) & (symdiffI2 = $true) & (exuE1 = $true) & (setbeta = $true) & (setminusIRneg = $true) & (setminusEL = $true) & (notequalI2 = $true) & (emptyI = $true) & (ubforcartprodlem1 = $true) & (foundationAx = $true) & (sepInPowerset = $true) & (bs114d = $true) & (ubforcartprodlem2 = $true) & (powersetE = $true) & (setukpairIR = $true) & (symdiffE = $true) & (sepSubset = $true) & (upairinpowunion = $true) & (omegaIndAx = $true) & (descrp = $true) & (subsetI1 = $true) & (exuE3u = $true) & (ex1I2 = $true) & (binunionE = $true) & (emptyE1 = $true) & (quantDeMorgan3 = $true) & (replAx = $true) & (subsetE = $true) & (exuI2 = $true) & (symdiffI1 = $true) & (emptysetimpfalse = $true) & (setminusERneg = $true) & (inPowerset = $true) & (powersetI = $true) & (subsetI2 = $true) & (binunionIL = $true) & (emptysetE = $true) & (setunionsingleton1 = $true) & (prop2setI = $true) & (subPowSU = $true) & (powersetI1 = $true) & (eqimpsubset1 = $true) & (setminusI = $true) & (setadjoinAx = $true) & (powersetAx = $true) & (setunionI = $true) & (setminusSubset1 = $true) & (singletoninpowunion = $true) & (omegaSAx = $true) & (noeltsimpempty = $true) & (nonemptyImpWitness = $true) & (subsetemptysetimpeq = $true) & (ubforcartprodlem3 = $true) & (setadjoinSub2 = $true) & (binunionRsub = $true) & (dsetconstrI = $true) & (exu__Cong = $true) & (notsubsetI = $true) & (exuI3 = $true) & (setadjoinE = $true) & (setadjoin__Cong = $true) & (setunionsingleton = $true) & (wellorderingAx = $true) & (setadjoinIL = $true) & (setadjoinSub = $true) & (binintersectRsub = $true) & (setminusELneg = $true) & (setminusSubset2 = $true) & (singletonsubset = $true) & (quantDeMorgan2 = $true) & (setukpairIL = $true) & (powerset__Cong = $true) & (dsetconstrER = $true) & (setunion__Cong = $true) & (setunionAx = $true) & (setadjoinIR = $true) & (emptyset__Cong = $true) & (nonemptyI = $true) & (quantDeMorgan4 = $true) & (nonemptyI1 = $true) & (omega0Ax = $true) & (notinemptyset = $true) & (powersetE1 = $true) & (kpairiskpair = $true) & (binunionLsub = $true) & (setext = $true) & (ex1E1 = $true) & (omega__Cong = $true) & (notequalI1 = $true) & (kpairp = $true) & (subsetE2 = $true) & (binintersectSubset2 = $true) & (setoftrueEq = $true) & (binintersectSubset5 = $true) & (upairsetIR = $true) & (binintersectSubset1 = $true) & (singletonsswitch = $true) & (subsetRefl = $true) & (exuI1 = $true) & (eqinunit = $true) & (notdexE = $true) & (upairsubunion = $true) & (binunionEcases = $true) & (upairset2IR = $true) & (upairsetIL = $true) & (inCongP = $true) & (exuE3e = $true) & (binunionIR = $true) & (uniqinunit = $true) & (prop2setE = $true) & (binintersectSubset3 = $true) & (descr__Cong = $true) & (nonemptyE1 = $true) & (disjointsetsI1 = $true) & (setunionE2 = $true) & (dsetconstrEL = $true)),
% 2.40/1.64    inference(skolemisation,[status(esa),new_symbols(skolem,[sK35,sK36])],[f656,f748])).
% 2.40/1.64  thf(f748,plain,(
% 2.40/1.64    ? [X0 : $i,X1 : $i] : ((X0 != X1) & ((setadjoin @ X1 @ emptyset) = (setadjoin @ X0 @ emptyset))) => ((sK35 != sK36) & ((setadjoin @ sK35 @ emptyset) = (setadjoin @ sK36 @ emptyset)))),
% 2.40/1.64    introduced(definition,[],[choice_axiom])).
% 2.40/1.64  thf(f656,plain,(
% 2.40/1.64    (symdiffIneg1 = $true) & (emptysetsubset = $true) & (binintersectI = $true) & (setextAx = $true) & (setunionE = $true) & (dsetconstr__Cong = $true) & (in__Cong = $true) & (setminusER = $true) & (binintersectSubset4 = $true) & (upairset2E = $true) & (powersetsubset = $true) & (emptyInPowerset = $true) & (setminusLsub = $true) & (setextsub = $true) & ? [X0 : $i,X1 : $i] : ((X0 != X1) & ((setadjoin @ X1 @ emptyset) = (setadjoin @ X0 @ emptyset))) & (exuEu = $true) & (binintersectLsub = $true) & (subsetTrans = $true) & (prop2set2propI = $true) & (cartprodmempair = $true) & (subset2powerset = $true) & (binintersectEL = $true) & (emptysetAx = $true) & (vacuousDall = $true) & (setunionsingleton2 = $true) & (emptyinPowerset = $true) & (cartprodpairin = $true) & (quantDeMorgan1 = $true) & (exuE2 = $true) & (ex1I = $true) & (singletoninpowerset = $true) & (eqimpsubset2 = $true) & (binintersectER = $true) & (secondinupair = $true) & (cartprodmempair1 = $true) & (upairsetE = $true) & (notdallE = $true) & (notinsingleton = $true) & (setminusILneg = $true) & (singletonprop = $true) & (emptyinunitempty = $true) & (symdiffIneg2 = $true) & (setadjoinOr = $true) & (symdiffI2 = $true) & (exuE1 = $true) & (setbeta = $true) & (setminusIRneg = $true) & (setminusEL = $true) & (notequalI2 = $true) & (emptyI = $true) & (ubforcartprodlem1 = $true) & (foundationAx = $true) & (sepInPowerset = $true) & (bs114d = $true) & (ubforcartprodlem2 = $true) & (powersetE = $true) & (setukpairIR = $true) & (symdiffE = $true) & (sepSubset = $true) & (upairinpowunion = $true) & (omegaIndAx = $true) & (descrp = $true) & (subsetI1 = $true) & (exuE3u = $true) & (ex1I2 = $true) & (binunionE = $true) & (emptyE1 = $true) & (quantDeMorgan3 = $true) & (replAx = $true) & (subsetE = $true) & (exuI2 = $true) & (symdiffI1 = $true) & (emptysetimpfalse = $true) & (setminusERneg = $true) & (inPowerset = $true) & (powersetI = $true) & (subsetI2 = $true) & (binunionIL = $true) & (emptysetE = $true) & (setunionsingleton1 = $true) & (prop2setI = $true) & (subPowSU = $true) & (powersetI1 = $true) & (eqimpsubset1 = $true) & (setminusI = $true) & (setadjoinAx = $true) & (powersetAx = $true) & (setunionI = $true) & (setminusSubset1 = $true) & (singletoninpowunion = $true) & (omegaSAx = $true) & (noeltsimpempty = $true) & (nonemptyImpWitness = $true) & (subsetemptysetimpeq = $true) & (ubforcartprodlem3 = $true) & (setadjoinSub2 = $true) & (binunionRsub = $true) & (dsetconstrI = $true) & (exu__Cong = $true) & (notsubsetI = $true) & (exuI3 = $true) & (setadjoinE = $true) & (setadjoin__Cong = $true) & (setunionsingleton = $true) & (wellorderingAx = $true) & (setadjoinIL = $true) & (setadjoinSub = $true) & (binintersectRsub = $true) & (setminusELneg = $true) & (setminusSubset2 = $true) & (singletonsubset = $true) & (quantDeMorgan2 = $true) & (setukpairIL = $true) & (powerset__Cong = $true) & (dsetconstrER = $true) & (setunion__Cong = $true) & (setunionAx = $true) & (setadjoinIR = $true) & (emptyset__Cong = $true) & (nonemptyI = $true) & (quantDeMorgan4 = $true) & (nonemptyI1 = $true) & (omega0Ax = $true) & (notinemptyset = $true) & (powersetE1 = $true) & (kpairiskpair = $true) & (binunionLsub = $true) & (setext = $true) & (ex1E1 = $true) & (omega__Cong = $true) & (notequalI1 = $true) & (kpairp = $true) & (subsetE2 = $true) & (binintersectSubset2 = $true) & (setoftrueEq = $true) & (binintersectSubset5 = $true) & (upairsetIR = $true) & (binintersectSubset1 = $true) & (singletonsswitch = $true) & (subsetRefl = $true) & (exuI1 = $true) & (eqinunit = $true) & (notdexE = $true) & (upairsubunion = $true) & (binunionEcases = $true) & (upairset2IR = $true) & (upairsetIL = $true) & (inCongP = $true) & (exuE3e = $true) & (binunionIR = $true) & (uniqinunit = $true) & (prop2setE = $true) & (binintersectSubset3 = $true) & (descr__Cong = $true) & (nonemptyE1 = $true) & (disjointsetsI1 = $true) & (setunionE2 = $true) & (dsetconstrEL = $true)),
% 2.40/1.64    inference(flattening,[status(thm)],[f655])).
% 2.40/1.64  thf(f655,plain,(
% 2.40/1.64    ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((? [X0 : $i,X1 : $i] : ((X0 != X1) & ((setadjoin @ X1 @ emptyset) = (setadjoin @ X0 @ emptyset))) & (ex1I2 = $true)) & (ex1I = $true)) & (ex1E1 = $true)) & (singletonprop = $true)) & (setunionsingleton = $true)) & (setunionsingleton2 = $true)) & (setunionsingleton1 = $true)) & (setunionE2 = $true)) & (cartprodmempair = $true)) & (cartprodmempair1 = $true)) & (cartprodpairin = $true)) & (ubforcartprodlem3 = $true)) & (ubforcartprodlem2 = $true)) & (ubforcartprodlem1 = $true)) & (upairinpowunion = $true)) & (upairsubunion = $true)) & (upairset2E = $true)) & (singletoninpowunion = $true)) & (singletoninpowerset = $true)) & (singletonsubset = $true)) & (kpairp = $true)) & (kpairiskpair = $true)) & (setukpairIR = $true)) & (setukpairIL = $true)) & (secondinupair = $true)) & (symdiffIneg2 = $true)) & (symdiffIneg1 = $true)) & (symdiffI2 = $true)) & (symdiffI1 = $true)) & (symdiffE = $true)) & (setminusSubset1 = $true)) & (setminusLsub = $true)) & (setminusIRneg = $true)) & (setminusILneg = $true)) & (setminusELneg = $true)) & (setminusERneg = $true)) & (setminusSubset2 = $true)) & (setminusER = $true)) & (setminusEL = $true)) & (setminusI = $true)) & (bs114d = $true)) & (binintersectSubset1 = $true)) & (binintersectSubset4 = $true)) & (binintersectRsub = $true)) & (disjointsetsI1 = $true)) & (binintersectER = $true)) & (binintersectSubset3 = $true)) & (binintersectSubset2 = $true)) & (binintersectLsub = $true)) & (binintersectEL = $true)) & (binintersectSubset5 = $true)) & (binintersectI = $true)) & (binunionRsub = $true)) & (binunionLsub = $true)) & (binunionE = $true)) & (binunionEcases = $true)) & (binunionIR = $true)) & (upairset2IR = $true)) & (binunionIL = $true)) & (sepSubset = $true)) & (sepInPowerset = $true)) & (powersetsubset = $true)) & (inPowerset = $true)) & (powersetE1 = $true)) & (powersetI1 = $true)) & (subsetemptysetimpeq = $true)) & (setextsub = $true)) & (subset2powerset = $true)) & (setadjoinSub2 = $true)) & (setadjoinSub = $true)) & (subsetTrans = $true)) & (subsetRefl = $true)) & (notequalI2 = $true)) & (notequalI1 = $true)) & (notsubsetI = $true)) & (subsetE2 = $true)) & (subsetE = $true)) & (emptysetsubset = $true)) & (subsetI2 = $true)) & (eqimpsubset1 = $true)) & (eqimpsubset2 = $true)) & (subsetI1 = $true)) & (dsetconstr__Cong = $true)) & (descr__Cong = $true)) & (exuEu = $true)) & (omega__Cong = $true)) & (setunion__Cong = $true)) & (powerset__Cong = $true)) & (setadjoin__Cong = $true)) & (emptyset__Cong = $true)) & (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)),
% 2.40/1.64    inference(ennf_transformation,[status(thm)],[f458])).
% 2.40/1.64  thf(f458,plain,(
% 2.40/1.64    ~((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__Cong = $true) => ((setadjoin__Cong = $true) => ((powerset__Cong = $true) => ((setunion__Cong = $true) => ((omega__Cong = $true) => ((exuEu = $true) => ((descr__Cong = $true) => ((dsetconstr__Cong = $true) => ((subsetI1 = $true) => ((eqimpsubset2 = $true) => ((eqimpsubset1 = $true) => ((subsetI2 = $true) => ((emptysetsubset = $true) => ((subsetE = $true) => ((subsetE2 = $true) => ((notsubsetI = $true) => ((notequalI1 = $true) => ((notequalI2 = $true) => ((subsetRefl = $true) => ((subsetTrans = $true) => ((setadjoinSub = $true) => ((setadjoinSub2 = $true) => ((subset2powerset = $true) => ((setextsub = $true) => ((subsetemptysetimpeq = $true) => ((powersetI1 = $true) => ((powersetE1 = $true) => ((inPowerset = $true) => ((powersetsubset = $true) => ((sepInPowerset = $true) => ((sepSubset = $true) => ((binunionIL = $true) => ((upairset2IR = $true) => ((binunionIR = $true) => ((binunionEcases = $true) => ((binunionE = $true) => ((binunionLsub = $true) => ((binunionRsub = $true) => ((binintersectI = $true) => ((binintersectSubset5 = $true) => ((binintersectEL = $true) => ((binintersectLsub = $true) => ((binintersectSubset2 = $true) => ((binintersectSubset3 = $true) => ((binintersectER = $true) => ((disjointsetsI1 = $true) => ((binintersectRsub = $true) => ((binintersectSubset4 = $true) => ((binintersectSubset1 = $true) => ((bs114d = $true) => ((setminusI = $true) => ((setminusEL = $true) => ((setminusER = $true) => ((setminusSubset2 = $true) => ((setminusERneg = $true) => ((setminusELneg = $true) => ((setminusILneg = $true) => ((setminusIRneg = $true) => ((setminusLsub = $true) => ((setminusSubset1 = $true) => ((symdiffE = $true) => ((symdiffI1 = $true) => ((symdiffI2 = $true) => ((symdiffIneg1 = $true) => ((symdiffIneg2 = $true) => ((secondinupair = $true) => ((setukpairIL = $true) => ((setukpairIR = $true) => ((kpairiskpair = $true) => ((kpairp = $true) => ((singletonsubset = $true) => ((singletoninpowerset = $true) => ((singletoninpowunion = $true) => ((upairset2E = $true) => ((upairsubunion = $true) => ((upairinpowunion = $true) => ((ubforcartprodlem1 = $true) => ((ubforcartprodlem2 = $true) => ((ubforcartprodlem3 = $true) => ((cartprodpairin = $true) => ((cartprodmempair1 = $true) => ((cartprodmempair = $true) => ((setunionE2 = $true) => ((setunionsingleton1 = $true) => ((setunionsingleton2 = $true) => ((setunionsingleton = $true) => ((singletonprop = $true) => ((ex1E1 = $true) => ((ex1I = $true) => ((ex1I2 = $true) => ! [X0 : $i,X1 : $i] : (((setadjoin @ X1 @ emptyset) = (setadjoin @ X0 @ emptyset)) => (X0 = X1)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))),
% 2.40/1.64    inference(fool_elimination,[status(thm)],[f457])).
% 2.40/1.64  thf(f457,plain,(
% 2.40/1.64    ~(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__Cong => (setadjoin__Cong => (powerset__Cong => (setunion__Cong => (omega__Cong => (exuEu => (descr__Cong => (dsetconstr__Cong => (subsetI1 => (eqimpsubset2 => (eqimpsubset1 => (subsetI2 => (emptysetsubset => (subsetE => (subsetE2 => (notsubsetI => (notequalI1 => (notequalI2 => (subsetRefl => (subsetTrans => (setadjoinSub => (setadjoinSub2 => (subset2powerset => (setextsub => (subsetemptysetimpeq => (powersetI1 => (powersetE1 => (inPowerset => (powersetsubset => (sepInPowerset => (sepSubset => (binunionIL => (upairset2IR => (binunionIR => (binunionEcases => (binunionE => (binunionLsub => (binunionRsub => (binintersectI => (binintersectSubset5 => (binintersectEL => (binintersectLsub => (binintersectSubset2 => (binintersectSubset3 => (binintersectER => (disjointsetsI1 => (binintersectRsub => (binintersectSubset4 => (binintersectSubset1 => (bs114d => (setminusI => (setminusEL => (setminusER => (setminusSubset2 => (setminusERneg => (setminusELneg => (setminusILneg => (setminusIRneg => (setminusLsub => (setminusSubset1 => (symdiffE => (symdiffI1 => (symdiffI2 => (symdiffIneg1 => (symdiffIneg2 => (secondinupair => (setukpairIL => (setukpairIR => (kpairiskpair => (kpairp => (singletonsubset => (singletoninpowerset => (singletoninpowunion => (upairset2E => (upairsubunion => (upairinpowunion => (ubforcartprodlem1 => (ubforcartprodlem2 => (ubforcartprodlem3 => (cartprodpairin => (cartprodmempair1 => (cartprodmempair => (setunionE2 => (setunionsingleton1 => (setunionsingleton2 => (setunionsingleton => (singletonprop => (ex1E1 => (ex1I => (ex1I2 => ! [X0 : $i,X1 : $i] : (((setadjoin @ X1 @ emptyset) = (setadjoin @ X0 @ emptyset)) => (X0 = X1)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))),
% 2.40/1.64    inference(rectify,[status(thm)],[f165])).
% 2.40/1.64  thf(f165,negated_conjecture,(
% 2.40/1.64    ~(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__Cong => (setadjoin__Cong => (powerset__Cong => (setunion__Cong => (omega__Cong => (exuEu => (descr__Cong => (dsetconstr__Cong => (subsetI1 => (eqimpsubset2 => (eqimpsubset1 => (subsetI2 => (emptysetsubset => (subsetE => (subsetE2 => (notsubsetI => (notequalI1 => (notequalI2 => (subsetRefl => (subsetTrans => (setadjoinSub => (setadjoinSub2 => (subset2powerset => (setextsub => (subsetemptysetimpeq => (powersetI1 => (powersetE1 => (inPowerset => (powersetsubset => (sepInPowerset => (sepSubset => (binunionIL => (upairset2IR => (binunionIR => (binunionEcases => (binunionE => (binunionLsub => (binunionRsub => (binintersectI => (binintersectSubset5 => (binintersectEL => (binintersectLsub => (binintersectSubset2 => (binintersectSubset3 => (binintersectER => (disjointsetsI1 => (binintersectRsub => (binintersectSubset4 => (binintersectSubset1 => (bs114d => (setminusI => (setminusEL => (setminusER => (setminusSubset2 => (setminusERneg => (setminusELneg => (setminusILneg => (setminusIRneg => (setminusLsub => (setminusSubset1 => (symdiffE => (symdiffI1 => (symdiffI2 => (symdiffIneg1 => (symdiffIneg2 => (secondinupair => (setukpairIL => (setukpairIR => (kpairiskpair => (kpairp => (singletonsubset => (singletoninpowerset => (singletoninpowunion => (upairset2E => (upairsubunion => (upairinpowunion => (ubforcartprodlem1 => (ubforcartprodlem2 => (ubforcartprodlem3 => (cartprodpairin => (cartprodmempair1 => (cartprodmempair => (setunionE2 => (setunionsingleton1 => (setunionsingleton2 => (setunionsingleton => (singletonprop => (ex1E1 => (ex1I => (ex1I2 => ! [X1 : $i,X2 : $i] : (((setadjoin @ X2 @ emptyset) = (setadjoin @ X1 @ emptyset)) => (X1 = X2)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))),
% 2.40/1.64    inference(negated_conjecture,[status(cth)],[f164])).
% 2.40/1.64  thf(f164,conjecture,(
% 2.40/1.64    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__Cong => (setadjoin__Cong => (powerset__Cong => (setunion__Cong => (omega__Cong => (exuEu => (descr__Cong => (dsetconstr__Cong => (subsetI1 => (eqimpsubset2 => (eqimpsubset1 => (subsetI2 => (emptysetsubset => (subsetE => (subsetE2 => (notsubsetI => (notequalI1 => (notequalI2 => (subsetRefl => (subsetTrans => (setadjoinSub => (setadjoinSub2 => (subset2powerset => (setextsub => (subsetemptysetimpeq => (powersetI1 => (powersetE1 => (inPowerset => (powersetsubset => (sepInPowerset => (sepSubset => (binunionIL => (upairset2IR => (binunionIR => (binunionEcases => (binunionE => (binunionLsub => (binunionRsub => (binintersectI => (binintersectSubset5 => (binintersectEL => (binintersectLsub => (binintersectSubset2 => (binintersectSubset3 => (binintersectER => (disjointsetsI1 => (binintersectRsub => (binintersectSubset4 => (binintersectSubset1 => (bs114d => (setminusI => (setminusEL => (setminusER => (setminusSubset2 => (setminusERneg => (setminusELneg => (setminusILneg => (setminusIRneg => (setminusLsub => (setminusSubset1 => (symdiffE => (symdiffI1 => (symdiffI2 => (symdiffIneg1 => (symdiffIneg2 => (secondinupair => (setukpairIL => (setukpairIR => (kpairiskpair => (kpairp => (singletonsubset => (singletoninpowerset => (singletoninpowunion => (upairset2E => (upairsubunion => (upairinpowunion => (ubforcartprodlem1 => (ubforcartprodlem2 => (ubforcartprodlem3 => (cartprodpairin => (cartprodmempair1 => (cartprodmempair => (setunionE2 => (setunionsingleton1 => (setunionsingleton2 => (setunionsingleton => (singletonprop => (ex1E1 => (ex1I => (ex1I2 => ! [X1 : $i,X2 : $i] : (((setadjoin @ X2 @ emptyset) = (setadjoin @ X1 @ emptyset)) => (X1 = X2))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))),
% 2.40/1.64    file('/export/starexec/sandbox2/tmp/tmp.DxatUwJPum/DTF2THF_26966.p',singletonsuniq)).
% 2.40/1.64  thf(f3195,plain,(
% 2.40/1.64    (sK35 = sK36)),
% 2.40/1.64    inference(forward_demodulation,[status(thm)],[f3194,f2815])).
% 2.40/1.64  thf(f2815,plain,(
% 2.40/1.64    ( ! [X0 : $i] : (((setunion @ (setadjoin @ X0 @ emptyset)) = X0)) )),
% 2.40/1.64    inference(trivial_inequality_removal,[status(thm)],[f2393])).
% 2.40/1.64  thf(f2393,plain,(
% 2.40/1.64    ( ! [X0 : $i] : (((setunion @ (setadjoin @ X0 @ emptyset)) = X0) | ($true != $true)) )),
% 2.40/1.64    inference(definition_unfolding,[status(thm)],[f1779,f1526])).
% 2.40/1.64  thf(f1526,plain,(
% 2.40/1.64    (setunionsingleton = $true)),
% 2.40/1.64    inference(cnf_transformation,[status(thm)],[f749])).
% 2.40/1.64  thf(f1779,plain,(
% 2.40/1.64    ( ! [X0 : $i] : (((setunion @ (setadjoin @ X0 @ emptyset)) = X0) | (setunionsingleton != $true)) )),
% 2.40/1.64    inference(cnf_transformation,[status(thm)],[f933])).
% 2.40/1.64  thf(f933,plain,(
% 2.40/1.64    (! [X0 : $i] : ((setunion @ (setadjoin @ X0 @ emptyset)) = X0) | (setunionsingleton != $true)) & ((setunionsingleton = $true) | (sK140 != (setunion @ (setadjoin @ sK140 @ emptyset))))),
% 2.40/1.64    inference(skolemisation,[status(esa),new_symbols(skolem,[sK140])],[f931,f932])).
% 2.40/1.64  thf(f932,plain,(
% 2.40/1.64    ? [X1 : $i] : ((setunion @ (setadjoin @ X1 @ emptyset)) != X1) => (sK140 != (setunion @ (setadjoin @ sK140 @ emptyset)))),
% 2.40/1.64    introduced(definition,[],[choice_axiom])).
% 2.40/1.64  thf(f931,plain,(
% 2.40/1.64    (! [X0 : $i] : ((setunion @ (setadjoin @ X0 @ emptyset)) = X0) | (setunionsingleton != $true)) & ((setunionsingleton = $true) | ? [X1 : $i] : ((setunion @ (setadjoin @ X1 @ emptyset)) != X1))),
% 2.40/1.64    inference(rectify,[status(thm)],[f930])).
% 2.40/1.64  thf(f930,plain,(
% 2.40/1.64    (! [X0 : $i] : ((setunion @ (setadjoin @ X0 @ emptyset)) = X0) | (setunionsingleton != $true)) & ((setunionsingleton = $true) | ? [X0 : $i] : ((setunion @ (setadjoin @ X0 @ emptyset)) != X0))),
% 2.40/1.64    inference(nnf_transformation,[status(thm)],[f333])).
% 2.40/1.64  thf(f333,plain,(
% 2.40/1.64    ! [X0 : $i] : ((setunion @ (setadjoin @ X0 @ emptyset)) = X0) <=> (setunionsingleton = $true)),
% 2.40/1.64    inference(fool_elimination,[status(thm)],[f332])).
% 2.40/1.64  thf(f332,plain,(
% 2.40/1.64    (setunionsingleton = ! [X0 : $i] : ((setunion @ (setadjoin @ X0 @ emptyset)) = X0))),
% 2.40/1.64    inference(rectify,[status(thm)],[f157])).
% 2.40/1.64  thf(f157,axiom,(
% 2.40/1.64    (setunionsingleton = ! [X1 : $i] : ((setunion @ (setadjoin @ X1 @ emptyset)) = X1))),
% 2.40/1.64    file('/export/starexec/sandbox2/tmp/tmp.DxatUwJPum/DTF2THF_26966.p',setunionsingleton)).
% 2.40/1.64  thf(f3194,plain,(
% 2.40/1.64    (sK36 = (setunion @ (setadjoin @ sK35 @ emptyset)))),
% 2.40/1.64    inference(superposition,[status(thm)],[f2815,f1615])).
% 2.40/1.64  thf(f1615,plain,(
% 2.40/1.64    ((setadjoin @ sK35 @ emptyset) = (setadjoin @ sK36 @ emptyset))),
% 2.40/1.64    inference(cnf_transformation,[status(thm)],[f749])).
% 2.40/1.64  % SZS output end Proof for DTF2THF_26966
% 2.40/1.64  % (27087)------------------------------
% 2.40/1.64  % (27087)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 2.40/1.64  % (27087)Termination reason: Refutation
% 2.40/1.64  
% 2.40/1.64  % (27087)Memory used [KB]: 8187
% 2.40/1.64  % (27087)Time elapsed: 0.070 s
% 2.40/1.64  % (27087)Instructions burned: 218 (million)
% 2.40/1.64  % (27087)------------------------------
% 2.40/1.64  % (27087)------------------------------
% 2.40/1.64  % (27066)Success in time 0.143 s
%------------------------------------------------------------------------------