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DT2H2X---1.9.5.THM-Ref.s

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%------------------------------------------------------------------------------
% File     : DT2H2X---1.9.5
% Problem  : SEU633^1 : 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 : n024.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 09:35:47 AM UTC 2026

% Result   : Theorem 1.73s 1.23s
% Output   : Refutation 1.73s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   18
%            Number of leaves      :    6
% Syntax   : Number of formulae    :   33 (   7 unt;   0 typ;   0 def)
%            Number of atoms       : 2672 ( 717 equ;   0 cnn)
%            Maximal formula atoms :  152 (  80 avg)
%            Number of connectives : 1503 (  71   ~;  55   |; 482   &; 287   @)
%                                         (   4 <=>; 604  =>;   0  <=;   0 <~>)
%            Maximal formula depth :  158 (  36 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :  278 ( 275 usr; 156 con; 0-4 aty)
%            Number of variables   :   71 (   0   ^;  44   !;  27   ?;  71   :)

% 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_185,type,
    sP0: $i > $i > $i > $o > $o ).

thf(func_def_186,type,
    sP1: $i > $i > $o ).

thf(func_def_187,type,
    sP2: $i > $o ).

thf(func_def_188,type,
    sP3: $i > $i > $o ).

thf(func_def_189,type,
    sP4: $i > $i > $o ).

thf(func_def_198,type,
    sK13: $i > $i > $i ).

thf(func_def_204,type,
    sK19: ( $i > $o ) > $i > $i ).

thf(func_def_206,type,
    sK21: $i > $o ).

thf(func_def_208,type,
    sK23: $i > $o ).

thf(func_def_215,type,
    sK30: $i > $i > $i > $i ).

thf(func_def_216,type,
    sK31: $i > $i > $i > $i ).

thf(func_def_221,type,
    sK36: $i > $i ).

thf(func_def_223,type,
    sK38: $i > $i ).

thf(func_def_226,type,
    sK41: $i > $i ).

thf(func_def_237,type,
    sK52: $i > $o ).

thf(func_def_239,type,
    sK54: ( $i > $o ) > $i > $i ).

thf(func_def_241,type,
    sK56: ( $i > $o ) > ( $i > $o ) > $i ).

thf(func_def_242,type,
    sK57: ( $i > $o ) > ( $i > $o ) > $i ).

thf(func_def_243,type,
    sK58: $i > $o ).

thf(func_def_244,type,
    sK59: $i > $o ).

thf(func_def_253,type,
    sK68: $i > $o ).

thf(func_def_260,type,
    sK75: $i > $i > $i ).

thf(func_def_267,type,
    sK82: $i > $o ).

thf(func_def_268,type,
    sK83: $i > $o ).

thf(func_def_269,type,
    sK84: ( $i > $o ) > ( $i > $o ) > $i > $i > $i ).

thf(func_def_270,type,
    sK85: ( $i > $o ) > ( $i > $o ) > $i > $i > $i ).

thf(func_def_272,type,
    sK87: $i > $o ).

thf(func_def_274,type,
    sK89: $i > $i ).

thf(func_def_285,type,
    sK100: $i > $i > $i ).

thf(func_def_286,type,
    sK101: $i > $i > $i ).

thf(func_def_300,type,
    sK115: $i > $i ).

thf(func_def_303,type,
    sK118: ( $i > $o ) > $i ).

thf(func_def_304,type,
    sK119: $i > $o ).

thf(func_def_305,type,
    sK120: $i > $i ).

thf(func_def_324,type,
    sK139: $i > $o ).

thf(func_def_327,type,
    sK142: ( $i > $o ) > ( $i > $o ) > $i ).

thf(func_def_328,type,
    sK143: ( $i > $o ) > ( $i > $o ) > $i ).

thf(func_def_329,type,
    sK144: $i > $o ).

thf(func_def_330,type,
    sK145: $i > $o ).

thf(func_def_331,type,
    sK146: $i > ( $i > $o ) > $i ).

thf(func_def_332,type,
    sK147: $i > $o ).

thf(func_def_338,type,
    sK153: $i > $i ).

thf(func_def_347,type,
    sK162: $i > $o ).

thf(func_def_349,type,
    sK164: ( $i > $o ) > $i ).

thf(func_def_350,type,
    sK165: ( $i > $o ) > $i ).

thf(func_def_358,type,
    sK173: $i > $o ).

thf(func_def_361,type,
    sK176: $i > $i > $i ).

thf(func_def_362,type,
    sK177: $i > $i > $i ).

thf(func_def_379,type,
    sK194: $i > $o ).

thf(func_def_387,type,
    sK202: $i > $o ).

thf(func_def_395,type,
    sK210: $i > $o ).

thf(func_def_397,type,
    sK212: ( $i > $o ) > $i > $i ).

thf(func_def_402,type,
    sK217: $i > $i > $i ).

thf(func_def_403,type,
    sK218: $i > $i > $i ).

thf(func_def_404,type,
    sK219: $i > $i > $i ).

thf(func_def_405,type,
    sK220: $i > $i > $i ).

thf(func_def_406,type,
    sK221: $i > $i > $i ).

thf(func_def_407,type,
    sK222: $i > $i > $i > $i ).

thf(func_def_408,type,
    sK223: $i > $i ).

thf(func_def_409,type,
    sK224: $i > $i ).

thf(func_def_410,type,
    sK225: $i > $i ).

thf(func_def_411,type,
    sK226: $i > $i ).

thf(func_def_412,type,
    sK227: $i > $i > $i > $i ).

thf(func_def_413,type,
    sK228: $i > $i > $i > $i ).

thf(func_def_414,type,
    sK229: $i > $i > $i ).

thf(func_def_415,type,
    sK230: $i > $i > $i ).

thf(func_def_416,type,
    sK231: $i > $i > $i ).

thf(func_def_418,type,
    sK233: $i > $i ).

thf(func_def_419,type,
    sK234: $i > $i ).

thf(func_def_420,type,
    sK235: $i > $i ).

thf(func_def_421,type,
    sK236: $i > $o ).

thf(func_def_424,type,
    sK239: $i > $o ).

thf(func_def_426,type,
    sK241: $i > ( $i > $o ) > $i ).

thf(func_def_438,type,
    sK253: $i > $i > $i ).

thf(func_def_448,type,
    sK263: $i > $o ).

thf(func_def_450,type,
    sK265: $i > ( $i > $o ) > $i ).

thf(func_def_456,type,
    sK271: $i > $o ).

thf(func_def_461,type,
    sK276: $i > $o ).

thf(func_def_468,type,
    sK283: $o > $i > $i > $i ).

thf(func_def_489,type,
    sK304: $i > $o ).

thf(func_def_492,type,
    sK307: $i > ( $i > $o ) > $i ).

thf(func_def_506,type,
    sK321: $i > $o ).

thf(func_def_508,type,
    sK323: $i > ( $i > $o ) > $i ).

thf(func_def_509,type,
    sK324: $i > $o ).

thf(func_def_535,type,
    sK350: $i > $i > $o ).

thf(func_def_537,type,
    sK352: $i > $i ).

thf(func_def_538,type,
    sK353: $i > $i ).

thf(func_def_539,type,
    sK354: $i > ( $i > $i > $o ) > $i ).

thf(func_def_540,type,
    sK355: $i > ( $i > $i > $o ) > $i ).

thf(func_def_541,type,
    sK356: $i > $i > ( $i > $i > $o ) > $i ).

thf(func_def_544,type,
    sK359: $i > $i > $i ).

thf(func_def_547,type,
    sK362: ( $i > $o ) > $i ).

thf(func_def_548,type,
    sK363: $i > $o ).

thf(func_def_549,type,
    sK364: $i > $i ).

thf(func_def_557,type,
    sK372: $i > $o ).

thf(func_def_558,type,
    sK373: ( $i > $o ) > $i ).

thf(func_def_572,type,
    sK387: $i > $i ).

thf(func_def_577,type,
    sK392: $i > $o ).

thf(func_def_596,type,
    sK411: $i > $i > $i ).

thf(func_def_603,type,
    ph418: 
      !>[X0: $tType] : X0 ).

thf(f3757,plain,
    $false,
    inference(trivial_inequality_removal,[status(thm)],[f3744]) ).

thf(f3744,plain,
    $true != $true,
    inference(superposition,[status(thm)],[f3585,f1907]) ).

thf(f1907,plain,
    ( $true
    = ( in @ sK375 @ ( setunion @ sK374 ) ) ),
    inference(cnf_transformation,[status(thm)],[f1272]) ).

thf(f1272,plain,
    ( ( emptyinPowerset = $true )
    & ( foundationAx = $true )
    & ( binintersectSubset1 = $true )
    & ( quantDeMorgan3 = $true )
    & ( wellorderingAx = $true )
    & ( eqimpsubset2 = $true )
    & ( emptyset__Cong = $true )
    & ( notdexE = $true )
    & ( binunionIL = $true )
    & ( setextAx = $true )
    & ( binunionIR = $true )
    & ( setbeta = $true )
    & ( bs114d = $true )
    & ( descrp = $true )
    & ( setukpairIR = $true )
    & ( powersetAx = $true )
    & ( emptyinunitempty = $true )
    & ( exuI2 = $true )
    & ( cartprodmempair1 = $true )
    & ( nonemptyE1 = $true )
    & ( secondinupair = $true )
    & ( notinemptyset = $true )
    & ( setminusEL = $true )
    & ( subsetemptysetimpeq = $true )
    & ( singletonsubset = $true )
    & ( upairsetE = $true )
    & ( setminusERneg = $true )
    & ( binintersectSubset4 = $true )
    & ( setadjoinE = $true )
    & ( nonemptyI1 = $true )
    & ( nonemptyI = $true )
    & ( binintersectEL = $true )
    & ( powersetsubset = $true )
    & ( subset2powerset = $true )
    & ( setoftrueEq = $true )
    & ( cartprodpairin = $true )
    & ( kpairp = $true )
    & ( emptyInPowerset = $true )
    & ( upairsubunion = $true )
    & ( inCongP = $true )
    & ( singletoninpowunion = $true )
    & ( powersetI = $true )
    & ( setunionE = $true )
    & ( notequalI2 = $true )
    & ( binintersectSubset2 = $true )
    & ( eqinunit = $true )
    & ( exuI1 = $true )
    & ( setminusILneg = $true )
    & ( dsetconstrEL = $true )
    & ( quantDeMorgan2 = $true )
    & ( prop2setI = $true )
    & ( noeltsimpempty = $true )
    & ( disjointsetsI1 = $true )
    & ( exuE3e = $true )
    & ( symdiffIneg1 = $true )
    & ( symdiffIneg2 = $true )
    & ( setminusIRneg = $true )
    & ( setminusSubset1 = $true )
    & ( exuE1 = $true )
    & ( binintersectLsub = $true )
    & ( ubforcartprodlem2 = $true )
    & ( setadjoinSub = $true )
    & ( subsetE2 = $true )
    & ( descr__Cong = $true )
    & ( setext = $true )
    & ( binintersectER = $true )
    & ( binintersectI = $true )
    & ( sepSubset = $true )
    & ( setadjoin__Cong = $true )
    & ( subsetE = $true )
    & ( subsetI2 = $true )
    & ( setukpairIL = $true )
    & ( powersetE1 = $true )
    & ( prop2set2propI = $true )
    & ( symdiffI1 = $true )
    & ( eqimpsubset1 = $true )
    & ( notdallE = $true )
    & ( setminusLsub = $true )
    & ( emptysetAx = $true )
    & ( ubforcartprodlem3 = $true )
    & ( setadjoinAx = $true )
    & ( symdiffI2 = $true )
    & ( notsubsetI = $true )
    & ( uniqinunit = $true )
    & ( replAx = $true )
    & ( emptyE1 = $true )
    & ( singletoninpowerset = $true )
    & ( upairsetIL = $true )
    & ( exu__Cong = $true )
    & ( omega__Cong = $true )
    & ( notequalI1 = $true )
    & ( omegaSAx = $true )
    & ( powerset__Cong = $true )
    & ( symdiffE = $true )
    & ( vacuousDall = $true )
    & ( subsetI1 = $true )
    & ( powersetE = $true )
    & ( cartprodmempair = $true )
    & ( exuI3 = $true )
    & ( setminusELneg = $true )
    & ( nonemptyImpWitness = $true )
    & ( binunionE = $true )
    & ( kpairiskpair = $true )
    & ( upairset2E = $true )
    & ( dsetconstrER = $true )
    & ( setadjoinOr = $true )
    & ( upairset2IR = $true )
    & ( emptysetimpfalse = $true )
    & ( quantDeMorgan1 = $true )
    & ( subPowSU = $true )
    & ! [X2: $i] :
        ( ( $true
         != ( in @ X2 @ sK374 ) )
        | ( ( in @ sK375 @ X2 )
         != $true ) )
    & ( $true
      = ( in @ sK375 @ ( setunion @ sK374 ) ) )
    & ( binunionRsub = $true )
    & ( emptysetE = $true )
    & ( setminusSubset2 = $true )
    & ( quantDeMorgan4 = $true )
    & ( setadjoinSub2 = $true )
    & ( setunion__Cong = $true )
    & ( exuEu = $true )
    & ( inPowerset = $true )
    & ( prop2setE = $true )
    & ( notinsingleton = $true )
    & ( binunionEcases = $true )
    & ( emptyI = $true )
    & ( ubforcartprodlem1 = $true )
    & ( setadjoinIL = $true )
    & ( dsetconstr__Cong = $true )
    & ( setminusI = $true )
    & ( powersetI1 = $true )
    & ( binintersectSubset5 = $true )
    & ( setextsub = $true )
    & ( binunionLsub = $true )
    & ( exuE3u = $true )
    & ( dsetconstrI = $true )
    & ( setunionAx = $true )
    & ( omegaIndAx = $true )
    & ( binintersectSubset3 = $true )
    & ( singletonsswitch = $true )
    & ( omega0Ax = $true )
    & ( setadjoinIR = $true )
    & ( setminusER = $true )
    & ( binintersectRsub = $true )
    & ( in__Cong = $true )
    & ( subsetTrans = $true )
    & ( upairsetIR = $true )
    & ( sepInPowerset = $true )
    & ( subsetRefl = $true )
    & ( setunionI = $true )
    & ( exuE2 = $true )
    & ( upairinpowunion = $true )
    & ( emptysetsubset = $true ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK374,sK375])],[f555,f1271]) ).

thf(f1271,plain,
    ( ? [X0: $i,X1: $i] :
        ( ! [X2: $i] :
            ( ( ( in @ X2 @ X0 )
             != $true )
            | ( ( in @ X1 @ X2 )
             != $true ) )
        & ( ( in @ X1 @ ( setunion @ X0 ) )
          = $true ) )
   => ( ! [X2: $i] :
          ( ( $true
           != ( in @ X2 @ sK374 ) )
          | ( ( in @ sK375 @ X2 )
           != $true ) )
      & ( $true
        = ( in @ sK375 @ ( setunion @ sK374 ) ) ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f555,plain,
    ( ( emptyinPowerset = $true )
    & ( foundationAx = $true )
    & ( binintersectSubset1 = $true )
    & ( quantDeMorgan3 = $true )
    & ( wellorderingAx = $true )
    & ( eqimpsubset2 = $true )
    & ( emptyset__Cong = $true )
    & ( notdexE = $true )
    & ( binunionIL = $true )
    & ( setextAx = $true )
    & ( binunionIR = $true )
    & ( setbeta = $true )
    & ( bs114d = $true )
    & ( descrp = $true )
    & ( setukpairIR = $true )
    & ( powersetAx = $true )
    & ( emptyinunitempty = $true )
    & ( exuI2 = $true )
    & ( cartprodmempair1 = $true )
    & ( nonemptyE1 = $true )
    & ( secondinupair = $true )
    & ( notinemptyset = $true )
    & ( setminusEL = $true )
    & ( subsetemptysetimpeq = $true )
    & ( singletonsubset = $true )
    & ( upairsetE = $true )
    & ( setminusERneg = $true )
    & ( binintersectSubset4 = $true )
    & ( setadjoinE = $true )
    & ( nonemptyI1 = $true )
    & ( nonemptyI = $true )
    & ( binintersectEL = $true )
    & ( powersetsubset = $true )
    & ( subset2powerset = $true )
    & ( setoftrueEq = $true )
    & ( cartprodpairin = $true )
    & ( kpairp = $true )
    & ( emptyInPowerset = $true )
    & ( upairsubunion = $true )
    & ( inCongP = $true )
    & ( singletoninpowunion = $true )
    & ( powersetI = $true )
    & ( setunionE = $true )
    & ( notequalI2 = $true )
    & ( binintersectSubset2 = $true )
    & ( eqinunit = $true )
    & ( exuI1 = $true )
    & ( setminusILneg = $true )
    & ( dsetconstrEL = $true )
    & ( quantDeMorgan2 = $true )
    & ( prop2setI = $true )
    & ( noeltsimpempty = $true )
    & ( disjointsetsI1 = $true )
    & ( exuE3e = $true )
    & ( symdiffIneg1 = $true )
    & ( symdiffIneg2 = $true )
    & ( setminusIRneg = $true )
    & ( setminusSubset1 = $true )
    & ( exuE1 = $true )
    & ( binintersectLsub = $true )
    & ( ubforcartprodlem2 = $true )
    & ( setadjoinSub = $true )
    & ( subsetE2 = $true )
    & ( descr__Cong = $true )
    & ( setext = $true )
    & ( binintersectER = $true )
    & ( binintersectI = $true )
    & ( sepSubset = $true )
    & ( setadjoin__Cong = $true )
    & ( subsetE = $true )
    & ( subsetI2 = $true )
    & ( setukpairIL = $true )
    & ( powersetE1 = $true )
    & ( prop2set2propI = $true )
    & ( symdiffI1 = $true )
    & ( eqimpsubset1 = $true )
    & ( notdallE = $true )
    & ( setminusLsub = $true )
    & ( emptysetAx = $true )
    & ( ubforcartprodlem3 = $true )
    & ( setadjoinAx = $true )
    & ( symdiffI2 = $true )
    & ( notsubsetI = $true )
    & ( uniqinunit = $true )
    & ( replAx = $true )
    & ( emptyE1 = $true )
    & ( singletoninpowerset = $true )
    & ( upairsetIL = $true )
    & ( exu__Cong = $true )
    & ( omega__Cong = $true )
    & ( notequalI1 = $true )
    & ( omegaSAx = $true )
    & ( powerset__Cong = $true )
    & ( symdiffE = $true )
    & ( vacuousDall = $true )
    & ( subsetI1 = $true )
    & ( powersetE = $true )
    & ( cartprodmempair = $true )
    & ( exuI3 = $true )
    & ( setminusELneg = $true )
    & ( nonemptyImpWitness = $true )
    & ( binunionE = $true )
    & ( kpairiskpair = $true )
    & ( upairset2E = $true )
    & ( dsetconstrER = $true )
    & ( setadjoinOr = $true )
    & ( upairset2IR = $true )
    & ( emptysetimpfalse = $true )
    & ( quantDeMorgan1 = $true )
    & ( subPowSU = $true )
    & ? [X0: $i,X1: $i] :
        ( ! [X2: $i] :
            ( ( ( in @ X2 @ X0 )
             != $true )
            | ( ( in @ X1 @ X2 )
             != $true ) )
        & ( ( in @ X1 @ ( setunion @ X0 ) )
          = $true ) )
    & ( binunionRsub = $true )
    & ( emptysetE = $true )
    & ( setminusSubset2 = $true )
    & ( quantDeMorgan4 = $true )
    & ( setadjoinSub2 = $true )
    & ( setunion__Cong = $true )
    & ( exuEu = $true )
    & ( inPowerset = $true )
    & ( prop2setE = $true )
    & ( notinsingleton = $true )
    & ( binunionEcases = $true )
    & ( emptyI = $true )
    & ( ubforcartprodlem1 = $true )
    & ( setadjoinIL = $true )
    & ( dsetconstr__Cong = $true )
    & ( setminusI = $true )
    & ( powersetI1 = $true )
    & ( binintersectSubset5 = $true )
    & ( setextsub = $true )
    & ( binunionLsub = $true )
    & ( exuE3u = $true )
    & ( dsetconstrI = $true )
    & ( setunionAx = $true )
    & ( omegaIndAx = $true )
    & ( binintersectSubset3 = $true )
    & ( singletonsswitch = $true )
    & ( omega0Ax = $true )
    & ( setadjoinIR = $true )
    & ( setminusER = $true )
    & ( binintersectRsub = $true )
    & ( in__Cong = $true )
    & ( subsetTrans = $true )
    & ( upairsetIR = $true )
    & ( sepInPowerset = $true )
    & ( subsetRefl = $true )
    & ( setunionI = $true )
    & ( exuE2 = $true )
    & ( upairinpowunion = $true )
    & ( emptysetsubset = $true ) ),
    inference(flattening,[status(thm)],[f554]) ).

thf(f554,plain,
    ( ? [X0: $i,X1: $i] :
        ( ! [X2: $i] :
            ( ( ( in @ X2 @ X0 )
             != $true )
            | ( ( in @ X1 @ X2 )
             != $true ) )
        & ( ( in @ X1 @ ( setunion @ X0 ) )
          = $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)],[f220]) ).

thf(f220,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 )
                                                                                                                                                                                                                                                                                                             => ! [X0: $i,X1: $i] :
                                                                                                                                                                                                                                                                                                                  ( ( ( in @ X1 @ ( setunion @ X0 ) )
                                                                                                                                                                                                                                                                                                                    = $true )
                                                                                                                                                                                                                                                                                                                 => ? [X2: $i] :
                                                                                                                                                                                                                                                                                                                      ( ( ( in @ X1 @ X2 )
                                                                                                                                                                                                                                                                                                                        = $true )
                                                                                                                                                                                                                                                                                                                      & ( ( in @ X2 @ X0 )
                                                                                                                                                                                                                                                                                                                        = $true ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    inference(fool_elimination,[status(thm)],[f219]) ).

thf(f219,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
                                                                                                                                                                                                                                                                                                             => ! [X0: $i,X1: $i] :
                                                                                                                                                                                                                                                                                                                  ( ( in @ X1 @ ( setunion @ X0 ) )
                                                                                                                                                                                                                                                                                                                 => ? [X2: $i] :
                                                                                                                                                                                                                                                                                                                      ( ( in @ X1 @ X2 )
                                                                                                                                                                                                                                                                                                                      & ( in @ X2 @ X0 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    inference(rectify,[status(thm)],[f155]) ).

thf(f155,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
                                                                                                                                                                                                                                                                                                             => ! [X3: $i,X1: $i] :
                                                                                                                                                                                                                                                                                                                  ( ( in @ X1 @ ( setunion @ X3 ) )
                                                                                                                                                                                                                                                                                                                 => ? [X11: $i] :
                                                                                                                                                                                                                                                                                                                      ( ( in @ X1 @ X11 )
                                                                                                                                                                                                                                                                                                                      & ( in @ X11 @ X3 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    inference(negated_conjecture,[status(cth)],[f154]) ).

thf(f154,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
                                                                                                                                                                                                                                                                                                           => ! [X3: $i,X1: $i] :
                                                                                                                                                                                                                                                                                                                ( ( in @ X1 @ ( setunion @ X3 ) )
                                                                                                                                                                                                                                                                                                               => ? [X11: $i] :
                                                                                                                                                                                                                                                                                                                    ( ( in @ X1 @ X11 )
                                                                                                                                                                                                                                                                                                                    & ( in @ X11 @ X3 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ),
    file('/export/starexec/sandbox2/tmp/tmp.9E07OigdIH/DTF2THF_24674.p',setunionE2) ).

thf(f3585,plain,
    ( $true
   != ( in @ sK375 @ ( setunion @ sK374 ) ) ),
    inference(trivial_inequality_removal,[status(thm)],[f3584]) ).

thf(f3584,plain,
    ( ( $true
     != ( in @ sK375 @ ( setunion @ sK374 ) ) )
    | ( $true != $true ) ),
    inference(forward_demodulation,[status(thm)],[f3583,f1884]) ).

thf(f1884,plain,
    setunionAx = $true,
    inference(cnf_transformation,[status(thm)],[f1272]) ).

thf(f3583,plain,
    ( ( $true
     != ( in @ sK375 @ ( setunion @ sK374 ) ) )
    | ( setunionAx != $true ) ),
    inference(trivial_inequality_removal,[status(thm)],[f3582]) ).

thf(f3582,plain,
    ( ( $true != $true )
    | ( setunionAx != $true )
    | ( $true
     != ( in @ sK375 @ ( setunion @ sK374 ) ) ) ),
    inference(duplicate_literal_removal,[status(thm)],[f3573]) ).

thf(f3573,plain,
    ( ( $true != $true )
    | ( setunionAx != $true )
    | ( $true
     != ( in @ sK375 @ ( setunion @ sK374 ) ) )
    | ( $true
     != ( in @ sK375 @ ( setunion @ sK374 ) ) ) ),
    inference(superposition,[status(thm)],[f2361,f1483]) ).

thf(f1483,plain,
    ! [X0: $i,X1: $i] :
      ( ( ( in @ X1 @ ( sK101 @ X1 @ X0 ) )
        = $true )
      | ( setunionAx != $true )
      | ( ( in @ X1 @ ( setunion @ X0 ) )
       != $true ) ),
    inference(cnf_transformation,[status(thm)],[f821]) ).

thf(f821,plain,
    ( ( ! [X0: $i,X1: $i] :
          ( ( ( ( in @ X1 @ ( setunion @ X0 ) )
              = $true )
            | ! [X2: $i] :
                ( ( ( in @ X1 @ X2 )
                 != $true )
                | ( ( in @ X2 @ X0 )
                 != $true ) ) )
          & ( ( ( ( in @ X1 @ ( sK101 @ X1 @ X0 ) )
                = $true )
              & ( ( in @ ( sK101 @ X1 @ X0 ) @ X0 )
                = $true ) )
            | ( ( in @ X1 @ ( setunion @ X0 ) )
             != $true ) ) )
      | ( setunionAx != $true ) )
    & ( ( setunionAx = $true )
      | ( ( ! [X6: $i] :
              ( ( $true
               != ( in @ sK103 @ X6 ) )
              | ( $true
               != ( in @ X6 @ sK102 ) ) )
          | ( ( in @ sK103 @ ( setunion @ sK102 ) )
           != $true ) )
        & ( ( ( $true
              = ( in @ sK103 @ sK104 ) )
            & ( ( in @ sK104 @ sK102 )
              = $true ) )
          | ( ( in @ sK103 @ ( setunion @ sK102 ) )
            = $true ) ) ) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK101,sK102,sK103,sK104])],[f817,f820,f819,f818]) ).

thf(f818,plain,
    ! [X0: $i,X1: $i] :
      ( ? [X3: $i] :
          ( ( ( in @ X1 @ X3 )
            = $true )
          & ( ( in @ X3 @ X0 )
            = $true ) )
     => ( ( ( in @ X1 @ ( sK101 @ X1 @ X0 ) )
          = $true )
        & ( ( in @ ( sK101 @ X1 @ X0 ) @ X0 )
          = $true ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f819,plain,
    ( ? [X4: $i,X5: $i] :
        ( ( ! [X6: $i] :
              ( ( $true
               != ( in @ X5 @ X6 ) )
              | ( ( in @ X6 @ X4 )
               != $true ) )
          | ( ( in @ X5 @ ( setunion @ X4 ) )
           != $true ) )
        & ( ? [X7: $i] :
              ( ( $true
                = ( in @ X5 @ X7 ) )
              & ( ( in @ X7 @ X4 )
                = $true ) )
          | ( ( in @ X5 @ ( setunion @ X4 ) )
            = $true ) ) )
   => ( ( ! [X6: $i] :
            ( ( $true
             != ( in @ sK103 @ X6 ) )
            | ( $true
             != ( in @ X6 @ sK102 ) ) )
        | ( ( in @ sK103 @ ( setunion @ sK102 ) )
         != $true ) )
      & ( ? [X7: $i] :
            ( ( $true
              = ( in @ sK103 @ X7 ) )
            & ( $true
              = ( in @ X7 @ sK102 ) ) )
        | ( ( in @ sK103 @ ( setunion @ sK102 ) )
          = $true ) ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f820,plain,
    ( ? [X7: $i] :
        ( ( $true
          = ( in @ sK103 @ X7 ) )
        & ( $true
          = ( in @ X7 @ sK102 ) ) )
   => ( ( $true
        = ( in @ sK103 @ sK104 ) )
      & ( ( in @ sK104 @ sK102 )
        = $true ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f817,plain,
    ( ( ! [X0: $i,X1: $i] :
          ( ( ( ( in @ X1 @ ( setunion @ X0 ) )
              = $true )
            | ! [X2: $i] :
                ( ( ( in @ X1 @ X2 )
                 != $true )
                | ( ( in @ X2 @ X0 )
                 != $true ) ) )
          & ( ? [X3: $i] :
                ( ( ( in @ X1 @ X3 )
                  = $true )
                & ( ( in @ X3 @ X0 )
                  = $true ) )
            | ( ( in @ X1 @ ( setunion @ X0 ) )
             != $true ) ) )
      | ( setunionAx != $true ) )
    & ( ( setunionAx = $true )
      | ? [X4: $i,X5: $i] :
          ( ( ! [X6: $i] :
                ( ( $true
                 != ( in @ X5 @ X6 ) )
                | ( ( in @ X6 @ X4 )
                 != $true ) )
            | ( ( in @ X5 @ ( setunion @ X4 ) )
             != $true ) )
          & ( ? [X7: $i] :
                ( ( $true
                  = ( in @ X5 @ X7 ) )
                & ( ( in @ X7 @ X4 )
                  = $true ) )
            | ( ( in @ X5 @ ( setunion @ X4 ) )
              = $true ) ) ) ) ),
    inference(rectify,[status(thm)],[f816]) ).

thf(f816,plain,
    ( ( ! [X0: $i,X1: $i] :
          ( ( ( ( in @ X1 @ ( setunion @ X0 ) )
              = $true )
            | ! [X2: $i] :
                ( ( ( in @ X1 @ X2 )
                 != $true )
                | ( ( in @ X2 @ X0 )
                 != $true ) ) )
          & ( ? [X2: $i] :
                ( ( ( in @ X1 @ X2 )
                  = $true )
                & ( ( in @ X2 @ X0 )
                  = $true ) )
            | ( ( in @ X1 @ ( setunion @ X0 ) )
             != $true ) ) )
      | ( setunionAx != $true ) )
    & ( ( setunionAx = $true )
      | ? [X0: $i,X1: $i] :
          ( ( ! [X2: $i] :
                ( ( ( in @ X1 @ X2 )
                 != $true )
                | ( ( in @ X2 @ X0 )
                 != $true ) )
            | ( ( in @ X1 @ ( setunion @ X0 ) )
             != $true ) )
          & ( ? [X2: $i] :
                ( ( ( in @ X1 @ X2 )
                  = $true )
                & ( ( in @ X2 @ X0 )
                  = $true ) )
            | ( ( in @ X1 @ ( setunion @ X0 ) )
              = $true ) ) ) ) ),
    inference(nnf_transformation,[status(thm)],[f256]) ).

thf(f256,plain,
    ( ! [X0: $i,X1: $i] :
        ( ( ( in @ X1 @ ( setunion @ X0 ) )
          = $true )
      <=> ? [X2: $i] :
            ( ( ( in @ X1 @ X2 )
              = $true )
            & ( ( in @ X2 @ X0 )
              = $true ) ) )
  <=> ( setunionAx = $true ) ),
    inference(fool_elimination,[status(thm)],[f255]) ).

thf(f255,plain,
    ( setunionAx
    = ( ! [X0: $i,X1: $i] :
          ( ( in @ X1 @ ( setunion @ X0 ) )
        <=> ? [X2: $i] :
              ( ( in @ X2 @ X0 )
              & ( in @ X1 @ X2 ) ) ) ) ),
    inference(rectify,[status(thm)],[f6]) ).

thf(f6,axiom,
    ( setunionAx
    = ( ! [X3: $i,X1: $i] :
          ( ( in @ X1 @ ( setunion @ X3 ) )
        <=> ? [X4: $i] :
              ( ( in @ X4 @ X3 )
              & ( in @ X1 @ X4 ) ) ) ) ),
    file('/export/starexec/sandbox2/tmp/tmp.9E07OigdIH/DTF2THF_24674.p',setunionAx) ).

thf(f2361,plain,
    ! [X0: $i] :
      ( ( ( in @ sK375 @ ( sK101 @ X0 @ sK374 ) )
       != $true )
      | ( ( in @ X0 @ ( setunion @ sK374 ) )
       != $true ) ),
    inference(trivial_inequality_removal,[status(thm)],[f2360]) ).

thf(f2360,plain,
    ! [X0: $i] :
      ( ( $true != $true )
      | ( ( in @ sK375 @ ( sK101 @ X0 @ sK374 ) )
       != $true )
      | ( ( in @ X0 @ ( setunion @ sK374 ) )
       != $true ) ),
    inference(forward_demodulation,[status(thm)],[f2247,f1884]) ).

thf(f2247,plain,
    ! [X0: $i] :
      ( ( ( in @ X0 @ ( setunion @ sK374 ) )
       != $true )
      | ( ( in @ sK375 @ ( sK101 @ X0 @ sK374 ) )
       != $true )
      | ( setunionAx != $true ) ),
    inference(trivial_inequality_removal,[status(thm)],[f2189]) ).

thf(f2189,plain,
    ! [X0: $i] :
      ( ( $true != $true )
      | ( setunionAx != $true )
      | ( ( in @ sK375 @ ( sK101 @ X0 @ sK374 ) )
       != $true )
      | ( ( in @ X0 @ ( setunion @ sK374 ) )
       != $true ) ),
    inference(superposition,[status(thm)],[f1908,f1482]) ).

thf(f1482,plain,
    ! [X0: $i,X1: $i] :
      ( ( ( in @ ( sK101 @ X1 @ X0 ) @ X0 )
        = $true )
      | ( setunionAx != $true )
      | ( ( in @ X1 @ ( setunion @ X0 ) )
       != $true ) ),
    inference(cnf_transformation,[status(thm)],[f821]) ).

thf(f1908,plain,
    ! [X2: $i] :
      ( ( $true
       != ( in @ X2 @ sK374 ) )
      | ( ( in @ sK375 @ X2 )
       != $true ) ),
    inference(cnf_transformation,[status(thm)],[f1272]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.06  % Problem  : SEU633^1 : TPTP v9.2.1. Released v3.7.0.
% 0.00/0.06  % Command  : /export/starexec/sandbox2/solver/bin/run_DT2H2X /export/starexec/sandbox2/benchmark/theBenchmark.p 300
% 0.06/0.24  % Computer : n024.cluster.edu
% 0.06/0.24  % Model    : x86_64 x86_64
% 0.06/0.24  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.06/0.24  % Memory   : 8042.1875MB
% 0.06/0.24  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.06/0.24  % CPULimit : 300
% 0.06/0.24  % WCLimit  : 300
% 0.06/0.24  % DateTime : Tue Feb 24 07:29:10 EST 2026
% 0.06/0.24  % CPUTime  : 
% 0.06/0.24  Running /export/starexec/sandbox2/solver/bin/run_DT2H2X /export/starexec/sandbox2/benchmark/theBenchmark.p 300
% 0.06/0.31  ---- Original DTF file ---
% 0.06/0.31  thf(spec,logic,$$dhol).
% 0.06/0.31  %------------------------------------------------------------------------------
% 0.06/0.31  % File     : SEU633^1 : TPTP v9.2.1. Released v3.7.0.
% 0.06/0.31  % Domain   : Set Theory
% 0.06/0.31  % Problem  : Ordered Pairs - Singletons
% 0.06/0.31  % Version  : Especial.
% 0.06/0.31  % English  : (! A:i.! x:i.in x (setunion A) -> (? X:i.in X A & in x X))
% 0.06/0.31  
% 0.06/0.31  % Refs     : [Bro08] Brown (2008), Email to G. Sutcliffe
% 0.06/0.31  % Source   : [Bro08]
% 0.06/0.31  % Names    : ZFC135g [Bro08]
% 0.06/0.31  
% 0.06/0.31  % Status   : Theorem
% 0.06/0.31  % Rating   : 0.33 v9.1.0, 0.38 v9.0.0, 0.30 v8.2.0, 0.31 v8.1.0, 0.09 v7.5.0, 0.00 v7.4.0, 0.33 v7.2.0, 0.25 v7.1.0, 0.38 v7.0.0, 0.43 v6.4.0, 0.50 v6.3.0, 0.40 v6.2.0, 0.43 v6.1.0, 0.57 v6.0.0, 0.43 v5.5.0, 0.67 v5.4.0, 0.80 v5.0.0, 1.00 v3.7.0
% 0.06/0.31  % Syntax   : Number of formulae    :  326 ( 153 unt; 172 typ; 153 def)
% 0.06/0.31  %            Number of atoms       :  814 ( 214 equ;   0 cnn)
% 0.06/0.31  %            Maximal formula atoms :  152 (   5 avg)
% 0.06/0.31  %            Number of connectives : 1402 (  47   ~;   7   |;  33   &; 943   @)
% 0.06/0.31  %                                         (  14 <=>; 358  =>;   0  <=;   0 <~>)
% 0.06/0.31  %            Maximal formula depth :  157 (   2 avg)
% 0.06/0.31  %            Number of types       :    2 (   0 usr)
% 0.06/0.31  %            Number of type conns  :   69 (  69   >;   0   *;   0   +;   0  <<)
% 0.06/0.31  %            Number of symbols     :  175 ( 172 usr; 153 con; 0-2 aty)
% 0.06/0.31  %            Number of variables   :  446 (  33   ^; 379   !;  34   ?; 446   :)
% 0.06/0.31  % SPC      : TH0_THM_EQU_NAR
% 0.06/0.31  
% 0.06/0.31  % Comments : http://mathgate.info/detsetitem.php?id=190
% 0.06/0.31  %------------------------------------------------------------------------------
% 0.06/0.31  thf(in_type,type,
% 0.06/0.31      in: $i > $i > $o ).
% 0.06/0.31  
% 0.06/0.31  thf(exu_type,type,
% 0.06/0.31      exu: ( $i > $o ) > $o ).
% 0.06/0.31  
% 0.06/0.31  thf(exu,definition,
% 0.06/0.31      ( exu
% 0.06/0.31      = ( ^ [Xphi: $i > $o] :
% 0.06/0.31          ? [Xx: $i] :
% 0.06/0.31            ( ( Xphi @ Xx )
% 0.06/0.31            & ! [Xy: $i] :
% 0.06/0.31                ( ( Xphi @ Xy )
% 0.06/0.31               => ( Xx = Xy ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setextAx_type,type,
% 0.06/0.31      setextAx: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setextAx,definition,
% 0.06/0.31      ( setextAx
% 0.06/0.31      = ( ! [A: $i,B: $i] :
% 0.06/0.31            ( ! [Xx: $i] :
% 0.06/0.31                ( ( in @ Xx @ A )
% 0.06/0.31              <=> ( in @ Xx @ B ) )
% 0.06/0.31           => ( A = B ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(emptyset_type,type,
% 0.06/0.31      emptyset: $i ).
% 0.06/0.31  
% 0.06/0.31  thf(emptysetAx_type,type,
% 0.06/0.31      emptysetAx: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(emptysetAx,definition,
% 0.06/0.31      ( emptysetAx
% 0.06/0.31      = ( ! [Xx: $i] :
% 0.06/0.31            ~ ( in @ Xx @ emptyset ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setadjoin_type,type,
% 0.06/0.31      setadjoin: $i > $i > $i ).
% 0.06/0.31  
% 0.06/0.31  thf(setadjoinAx_type,type,
% 0.06/0.31      setadjoinAx: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setadjoinAx,definition,
% 0.06/0.31      ( setadjoinAx
% 0.06/0.31      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 0.06/0.31            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 0.06/0.31          <=> ( ( Xy = Xx )
% 0.06/0.31              | ( in @ Xy @ A ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(powerset_type,type,
% 0.06/0.31      powerset: $i > $i ).
% 0.06/0.31  
% 0.06/0.31  thf(powersetAx_type,type,
% 0.06/0.31      powersetAx: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(powersetAx,definition,
% 0.06/0.31      ( powersetAx
% 0.06/0.31      = ( ! [A: $i,B: $i] :
% 0.06/0.31            ( ( in @ B @ ( powerset @ A ) )
% 0.06/0.31          <=> ! [Xx: $i] :
% 0.06/0.31                ( ( in @ Xx @ B )
% 0.06/0.31               => ( in @ Xx @ A ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setunion_type,type,
% 0.06/0.31      setunion: $i > $i ).
% 0.06/0.31  
% 0.06/0.31  thf(setunionAx_type,type,
% 0.06/0.31      setunionAx: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setunionAx,definition,
% 0.06/0.31      ( setunionAx
% 0.06/0.31      = ( ! [A: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ ( setunion @ A ) )
% 0.06/0.31          <=> ? [B: $i] :
% 0.06/0.31                ( ( in @ Xx @ B )
% 0.06/0.31                & ( in @ B @ A ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(omega_type,type,
% 0.06/0.31      omega: $i ).
% 0.06/0.31  
% 0.06/0.31  thf(omega0Ax_type,type,
% 0.06/0.31      omega0Ax: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(omega0Ax,definition,
% 0.06/0.31      ( omega0Ax
% 0.06/0.31      = ( in @ emptyset @ omega ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(omegaSAx_type,type,
% 0.06/0.31      omegaSAx: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(omegaSAx,definition,
% 0.06/0.31      ( omegaSAx
% 0.06/0.31      = ( ! [Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ omega )
% 0.06/0.31           => ( in @ ( setadjoin @ Xx @ Xx ) @ omega ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(omegaIndAx_type,type,
% 0.06/0.31      omegaIndAx: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(omegaIndAx,definition,
% 0.06/0.31      ( omegaIndAx
% 0.06/0.31      = ( ! [A: $i] :
% 0.06/0.31            ( ( ( in @ emptyset @ A )
% 0.06/0.31              & ! [Xx: $i] :
% 0.06/0.31                  ( ( ( in @ Xx @ omega )
% 0.06/0.31                    & ( in @ Xx @ A ) )
% 0.06/0.31                 => ( in @ ( setadjoin @ Xx @ Xx ) @ A ) ) )
% 0.06/0.31           => ! [Xx: $i] :
% 0.06/0.31                ( ( in @ Xx @ omega )
% 0.06/0.31               => ( in @ Xx @ A ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(replAx_type,type,
% 0.06/0.31      replAx: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(replAx,definition,
% 0.06/0.31      ( replAx
% 0.06/0.31      = ( ! [Xphi: $i > $i > $o,A: $i] :
% 0.06/0.31            ( ! [Xx: $i] :
% 0.06/0.31                ( ( in @ Xx @ A )
% 0.06/0.31               => ( exu
% 0.06/0.31                  @ ^ [Xy: $i] : ( Xphi @ Xx @ Xy ) ) )
% 0.06/0.31           => ? [B: $i] :
% 0.06/0.31              ! [Xx: $i] :
% 0.06/0.31                ( ( in @ Xx @ B )
% 0.06/0.31              <=> ? [Xy: $i] :
% 0.06/0.31                    ( ( in @ Xy @ A )
% 0.06/0.31                    & ( Xphi @ Xy @ Xx ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(foundationAx_type,type,
% 0.06/0.31      foundationAx: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(foundationAx,definition,
% 0.06/0.31      ( foundationAx
% 0.06/0.31      = ( ! [A: $i] :
% 0.06/0.31            ( ? [Xx: $i] : ( in @ Xx @ A )
% 0.06/0.31           => ? [B: $i] :
% 0.06/0.31                ( ( in @ B @ A )
% 0.06/0.31                & ~ ? [Xx: $i] :
% 0.06/0.31                      ( ( in @ Xx @ B )
% 0.06/0.31                      & ( in @ Xx @ A ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(wellorderingAx_type,type,
% 0.06/0.31      wellorderingAx: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(wellorderingAx,definition,
% 0.06/0.31      ( wellorderingAx
% 0.06/0.31      = ( ! [A: $i] :
% 0.06/0.31          ? [B: $i] :
% 0.06/0.31            ( ! [C: $i] :
% 0.06/0.31                ( ( in @ C @ B )
% 0.06/0.31               => ! [Xx: $i] :
% 0.06/0.31                    ( ( in @ Xx @ C )
% 0.06/0.31                   => ( in @ Xx @ A ) ) )
% 0.06/0.31            & ! [Xx: $i,Xy: $i] :
% 0.06/0.31                ( ( ( in @ Xx @ A )
% 0.06/0.31                  & ( in @ Xy @ A ) )
% 0.06/0.31               => ( ! [C: $i] :
% 0.06/0.31                      ( ( in @ C @ B )
% 0.06/0.31                     => ( ( in @ Xx @ C )
% 0.06/0.31                      <=> ( in @ Xy @ C ) ) )
% 0.06/0.31                 => ( Xx = Xy ) ) )
% 0.06/0.31            & ! [C: $i,D: $i] :
% 0.06/0.31                ( ( ( in @ C @ B )
% 0.06/0.31                  & ( in @ D @ B ) )
% 0.06/0.31               => ( ! [Xx: $i] :
% 0.06/0.31                      ( ( in @ Xx @ C )
% 0.06/0.31                     => ( in @ Xx @ D ) )
% 0.06/0.31                  | ! [Xx: $i] :
% 0.06/0.31                      ( ( in @ Xx @ D )
% 0.06/0.31                     => ( in @ Xx @ C ) ) ) )
% 0.06/0.31            & ! [C: $i] :
% 0.06/0.31                ( ( ! [Xx: $i] :
% 0.06/0.31                      ( ( in @ Xx @ C )
% 0.06/0.31                     => ( in @ Xx @ A ) )
% 0.06/0.31                  & ? [Xx: $i] : ( in @ Xx @ C ) )
% 0.06/0.31               => ? [D: $i,Xx: $i] :
% 0.06/0.31                    ( ( in @ D @ B )
% 0.06/0.31                    & ( in @ Xx @ C )
% 0.06/0.31                    & ~ ? [Xy: $i] :
% 0.06/0.31                          ( ( in @ Xy @ D )
% 0.06/0.31                          & ( in @ Xy @ C ) )
% 0.06/0.31                    & ! [E: $i] :
% 0.06/0.31                        ( ( in @ E @ B )
% 0.06/0.31                       => ( ! [Xy: $i] :
% 0.06/0.31                              ( ( in @ Xy @ E )
% 0.06/0.31                             => ( in @ Xy @ D ) )
% 0.06/0.31                          | ( in @ Xx @ E ) ) ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(descr_type,type,
% 0.06/0.31      descr: ( $i > $o ) > $i ).
% 0.06/0.31  
% 0.06/0.31  thf(descrp_type,type,
% 0.06/0.31      descrp: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(descrp,definition,
% 0.06/0.31      ( descrp
% 0.06/0.31      = ( ! [Xphi: $i > $o] :
% 0.06/0.31            ( ( exu
% 0.06/0.31              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.06/0.31           => ( Xphi
% 0.06/0.31              @ ( descr
% 0.06/0.31                @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(dsetconstr_type,type,
% 0.06/0.31      dsetconstr: $i > ( $i > $o ) > $i ).
% 0.06/0.31  
% 0.06/0.31  thf(dsetconstrI_type,type,
% 0.06/0.31      dsetconstrI: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(dsetconstrI,definition,
% 0.06/0.31      ( dsetconstrI
% 0.06/0.31      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ A )
% 0.06/0.31           => ( ( Xphi @ Xx )
% 0.06/0.31             => ( in @ Xx
% 0.06/0.31                @ ( dsetconstr @ A
% 0.06/0.31                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(dsetconstrEL_type,type,
% 0.06/0.31      dsetconstrEL: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(dsetconstrEL,definition,
% 0.06/0.31      ( dsetconstrEL
% 0.06/0.31      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx
% 0.06/0.31              @ ( dsetconstr @ A
% 0.06/0.31                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 0.06/0.31           => ( in @ Xx @ A ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(dsetconstrER_type,type,
% 0.06/0.31      dsetconstrER: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(dsetconstrER,definition,
% 0.06/0.31      ( dsetconstrER
% 0.06/0.31      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx
% 0.06/0.31              @ ( dsetconstr @ A
% 0.06/0.31                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 0.06/0.31           => ( Xphi @ Xx ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(exuE1_type,type,
% 0.06/0.31      exuE1: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(exuE1,definition,
% 0.06/0.31      ( exuE1
% 0.06/0.31      = ( ! [Xphi: $i > $o] :
% 0.06/0.31            ( ( exu
% 0.06/0.31              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.06/0.31           => ? [Xx: $i] :
% 0.06/0.31                ( ( Xphi @ Xx )
% 0.06/0.31                & ! [Xy: $i] :
% 0.06/0.31                    ( ( Xphi @ Xy )
% 0.06/0.31                   => ( Xx = Xy ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(prop2set_type,type,
% 0.06/0.31      prop2set: $o > $i ).
% 0.06/0.31  
% 0.06/0.31  thf(prop2setE_type,type,
% 0.06/0.31      prop2setE: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(prop2setE,definition,
% 0.06/0.31      ( prop2setE
% 0.06/0.31      = ( ! [Xphi: $o,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ ( prop2set @ Xphi ) )
% 0.06/0.31           => Xphi ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(emptysetE_type,type,
% 0.06/0.31      emptysetE: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(emptysetE,definition,
% 0.06/0.31      ( emptysetE
% 0.06/0.31      = ( ! [Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ emptyset )
% 0.06/0.31           => ! [Xphi: $o] : Xphi ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(emptysetimpfalse_type,type,
% 0.06/0.31      emptysetimpfalse: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(emptysetimpfalse,definition,
% 0.06/0.31      ( emptysetimpfalse
% 0.06/0.31      = ( ! [Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ emptyset )
% 0.06/0.31           => $false ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(notinemptyset_type,type,
% 0.06/0.31      notinemptyset: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(notinemptyset,definition,
% 0.06/0.31      ( notinemptyset
% 0.06/0.31      = ( ! [Xx: $i] :
% 0.06/0.31            ~ ( in @ Xx @ emptyset ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(exuE3e_type,type,
% 0.06/0.31      exuE3e: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(exuE3e,definition,
% 0.06/0.31      ( exuE3e
% 0.06/0.31      = ( ! [Xphi: $i > $o] :
% 0.06/0.31            ( ( exu
% 0.06/0.31              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.06/0.31           => ? [Xx: $i] : ( Xphi @ Xx ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setext_type,type,
% 0.06/0.31      setext: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setext,definition,
% 0.06/0.31      ( setext
% 0.06/0.31      = ( ! [A: $i,B: $i] :
% 0.06/0.31            ( ! [Xx: $i] :
% 0.06/0.31                ( ( in @ Xx @ A )
% 0.06/0.31               => ( in @ Xx @ B ) )
% 0.06/0.31           => ( ! [Xx: $i] :
% 0.06/0.31                  ( ( in @ Xx @ B )
% 0.06/0.31                 => ( in @ Xx @ A ) )
% 0.06/0.31             => ( A = B ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(emptyI_type,type,
% 0.06/0.31      emptyI: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(emptyI,definition,
% 0.06/0.31      ( emptyI
% 0.06/0.31      = ( ! [A: $i] :
% 0.06/0.31            ( ! [Xx: $i] :
% 0.06/0.31                ~ ( in @ Xx @ A )
% 0.06/0.31           => ( A = emptyset ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(noeltsimpempty_type,type,
% 0.06/0.31      noeltsimpempty: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(noeltsimpempty,definition,
% 0.06/0.31      ( noeltsimpempty
% 0.06/0.31      = ( ! [A: $i] :
% 0.06/0.31            ( ! [Xx: $i] :
% 0.06/0.31                ~ ( in @ Xx @ A )
% 0.06/0.31           => ( A = emptyset ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setbeta_type,type,
% 0.06/0.31      setbeta: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setbeta,definition,
% 0.06/0.31      ( setbeta
% 0.06/0.31      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ A )
% 0.06/0.31           => ( ( in @ Xx
% 0.06/0.31                @ ( dsetconstr @ A
% 0.06/0.31                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 0.06/0.31            <=> ( Xphi @ Xx ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(nonempty_type,type,
% 0.06/0.31      nonempty: $i > $o ).
% 0.06/0.31  
% 0.06/0.31  thf(nonempty,definition,
% 0.06/0.31      ( nonempty
% 0.06/0.31      = ( ^ [Xx: $i] : ( Xx != emptyset ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(nonemptyE1_type,type,
% 0.06/0.31      nonemptyE1: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(nonemptyE1,definition,
% 0.06/0.31      ( nonemptyE1
% 0.06/0.31      = ( ! [A: $i] :
% 0.06/0.31            ( ( nonempty @ A )
% 0.06/0.31           => ? [Xx: $i] : ( in @ Xx @ A ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(nonemptyI_type,type,
% 0.06/0.31      nonemptyI: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(nonemptyI,definition,
% 0.06/0.31      ( nonemptyI
% 0.06/0.31      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ A )
% 0.06/0.31           => ( ( Xphi @ Xx )
% 0.06/0.31             => ( nonempty
% 0.06/0.31                @ ( dsetconstr @ A
% 0.06/0.31                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(nonemptyI1_type,type,
% 0.06/0.31      nonemptyI1: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(nonemptyI1,definition,
% 0.06/0.31      ( nonemptyI1
% 0.06/0.31      = ( ! [A: $i] :
% 0.06/0.31            ( ? [Xx: $i] : ( in @ Xx @ A )
% 0.06/0.31           => ( nonempty @ A ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setadjoinIL_type,type,
% 0.06/0.31      setadjoinIL: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setadjoinIL,definition,
% 0.06/0.31      ( setadjoinIL
% 0.06/0.31      = ( ! [Xx: $i,Xy: $i] : ( in @ Xx @ ( setadjoin @ Xx @ Xy ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(emptyinunitempty_type,type,
% 0.06/0.31      emptyinunitempty: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(emptyinunitempty,definition,
% 0.06/0.31      ( emptyinunitempty
% 0.06/0.31      = ( in @ emptyset @ ( setadjoin @ emptyset @ emptyset ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setadjoinIR_type,type,
% 0.06/0.31      setadjoinIR: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setadjoinIR,definition,
% 0.06/0.31      ( setadjoinIR
% 0.06/0.31      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 0.06/0.31            ( ( in @ Xy @ A )
% 0.06/0.31           => ( in @ Xy @ ( setadjoin @ Xx @ A ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setadjoinE_type,type,
% 0.06/0.31      setadjoinE: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setadjoinE,definition,
% 0.06/0.31      ( setadjoinE
% 0.06/0.31      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 0.06/0.31            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 0.06/0.31           => ! [Xphi: $o] :
% 0.06/0.31                ( ( ( Xy = Xx )
% 0.06/0.31                 => Xphi )
% 0.06/0.31               => ( ( ( in @ Xy @ A )
% 0.06/0.31                   => Xphi )
% 0.06/0.31                 => Xphi ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setadjoinOr_type,type,
% 0.06/0.31      setadjoinOr: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setadjoinOr,definition,
% 0.06/0.31      ( setadjoinOr
% 0.06/0.31      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 0.06/0.31            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 0.06/0.31           => ( ( Xy = Xx )
% 0.06/0.31              | ( in @ Xy @ A ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setoftrueEq_type,type,
% 0.06/0.31      setoftrueEq: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setoftrueEq,definition,
% 0.06/0.31      ( setoftrueEq
% 0.06/0.31      = ( ! [A: $i] :
% 0.06/0.31            ( ( dsetconstr @ A
% 0.06/0.31              @ ^ [Xx: $i] : $true )
% 0.06/0.31            = A ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(powersetI_type,type,
% 0.06/0.31      powersetI: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(powersetI,definition,
% 0.06/0.31      ( powersetI
% 0.06/0.31      = ( ! [A: $i,B: $i] :
% 0.06/0.31            ( ! [Xx: $i] :
% 0.06/0.31                ( ( in @ Xx @ B )
% 0.06/0.31               => ( in @ Xx @ A ) )
% 0.06/0.31           => ( in @ B @ ( powerset @ A ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(emptyinPowerset_type,type,
% 0.06/0.31      emptyinPowerset: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(emptyinPowerset,definition,
% 0.06/0.31      ( emptyinPowerset
% 0.06/0.31      = ( ! [A: $i] : ( in @ emptyset @ ( powerset @ A ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(emptyInPowerset_type,type,
% 0.06/0.31      emptyInPowerset: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(emptyInPowerset,definition,
% 0.06/0.31      ( emptyInPowerset
% 0.06/0.31      = ( ! [A: $i] : ( in @ emptyset @ ( powerset @ A ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(powersetE_type,type,
% 0.06/0.31      powersetE: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(powersetE,definition,
% 0.06/0.31      ( powersetE
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ B @ ( powerset @ A ) )
% 0.06/0.31           => ( ( in @ Xx @ B )
% 0.06/0.31             => ( in @ Xx @ A ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setunionI_type,type,
% 0.06/0.31      setunionI: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setunionI,definition,
% 0.06/0.31      ( setunionI
% 0.06/0.31      = ( ! [A: $i,Xx: $i,B: $i] :
% 0.06/0.31            ( ( in @ Xx @ B )
% 0.06/0.31           => ( ( in @ B @ A )
% 0.06/0.31             => ( in @ Xx @ ( setunion @ A ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setunionE_type,type,
% 0.06/0.31      setunionE: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setunionE,definition,
% 0.06/0.31      ( setunionE
% 0.06/0.31      = ( ! [A: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ ( setunion @ A ) )
% 0.06/0.31           => ! [Xphi: $o] :
% 0.06/0.31                ( ! [B: $i] :
% 0.06/0.31                    ( ( in @ Xx @ B )
% 0.06/0.31                   => ( ( in @ B @ A )
% 0.06/0.31                     => Xphi ) )
% 0.06/0.31               => Xphi ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(subPowSU_type,type,
% 0.06/0.31      subPowSU: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(subPowSU,definition,
% 0.06/0.31      ( subPowSU
% 0.06/0.31      = ( ! [A: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ A )
% 0.06/0.31           => ( in @ Xx @ ( powerset @ ( setunion @ A ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(exuE2_type,type,
% 0.06/0.31      exuE2: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(exuE2,definition,
% 0.06/0.31      ( exuE2
% 0.06/0.31      = ( ! [Xphi: $i > $o] :
% 0.06/0.31            ( ( exu
% 0.06/0.31              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.06/0.31           => ? [Xx: $i] :
% 0.06/0.31              ! [Xy: $i] :
% 0.06/0.31                ( ( Xphi @ Xy )
% 0.06/0.31              <=> ( Xy = Xx ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(nonemptyImpWitness_type,type,
% 0.06/0.31      nonemptyImpWitness: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(nonemptyImpWitness,definition,
% 0.06/0.31      ( nonemptyImpWitness
% 0.06/0.31      = ( ! [A: $i] :
% 0.06/0.31            ( ( nonempty @ A )
% 0.06/0.31           => ? [Xx: $i] :
% 0.06/0.31                ( ( in @ Xx @ A )
% 0.06/0.31                & $true ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(uniqinunit_type,type,
% 0.06/0.31      uniqinunit: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(uniqinunit,definition,
% 0.06/0.31      ( uniqinunit
% 0.06/0.31      = ( ! [Xx: $i,Xy: $i] :
% 0.06/0.31            ( ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) )
% 0.06/0.31           => ( Xx = Xy ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(notinsingleton_type,type,
% 0.06/0.31      notinsingleton: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(notinsingleton,definition,
% 0.06/0.31      ( notinsingleton
% 0.06/0.31      = ( ! [Xx: $i,Xy: $i] :
% 0.06/0.31            ( ( Xx != Xy )
% 0.06/0.31           => ~ ( in @ Xy @ ( setadjoin @ Xx @ emptyset ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(eqinunit_type,type,
% 0.06/0.31      eqinunit: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(eqinunit,definition,
% 0.06/0.31      ( eqinunit
% 0.06/0.31      = ( ! [Xx: $i,Xy: $i] :
% 0.06/0.31            ( ( Xx = Xy )
% 0.06/0.31           => ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(singletonsswitch_type,type,
% 0.06/0.31      singletonsswitch: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(singletonsswitch,definition,
% 0.06/0.31      ( singletonsswitch
% 0.06/0.31      = ( ! [Xx: $i,Xy: $i] :
% 0.06/0.31            ( ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) )
% 0.06/0.31           => ( in @ Xy @ ( setadjoin @ Xx @ emptyset ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(upairsetE_type,type,
% 0.06/0.31      upairsetE: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(upairsetE,definition,
% 0.06/0.31      ( upairsetE
% 0.06/0.31      = ( ! [Xx: $i,Xy: $i,Xz: $i] :
% 0.06/0.31            ( ( in @ Xz @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) )
% 0.06/0.31           => ( ( Xz = Xx )
% 0.06/0.31              | ( Xz = Xy ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(upairsetIL_type,type,
% 0.06/0.31      upairsetIL: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(upairsetIL,definition,
% 0.06/0.31      ( upairsetIL
% 0.06/0.31      = ( ! [Xx: $i,Xy: $i] : ( in @ Xx @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(upairsetIR_type,type,
% 0.06/0.31      upairsetIR: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(upairsetIR,definition,
% 0.06/0.31      ( upairsetIR
% 0.06/0.31      = ( ! [Xx: $i,Xy: $i] : ( in @ Xy @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(emptyE1_type,type,
% 0.06/0.31      emptyE1: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(emptyE1,definition,
% 0.06/0.31      ( emptyE1
% 0.06/0.31      = ( ! [A: $i,Xphi: $i > $o] :
% 0.06/0.31            ( ? [Xx: $i] :
% 0.06/0.31                ( ( in @ Xx @ A )
% 0.06/0.31                & ( Xphi @ Xx ) )
% 0.06/0.31           => ( ( ( dsetconstr @ A
% 0.06/0.31                  @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.06/0.31                = emptyset )
% 0.06/0.31             => $false ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(vacuousDall_type,type,
% 0.06/0.31      vacuousDall: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(vacuousDall,definition,
% 0.06/0.31      ( vacuousDall
% 0.06/0.31      = ( ! [Xphi: $i > $o,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ emptyset )
% 0.06/0.31           => ( Xphi @ Xx ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(quantDeMorgan1_type,type,
% 0.06/0.31      quantDeMorgan1: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(quantDeMorgan1,definition,
% 0.06/0.31      ( quantDeMorgan1
% 0.06/0.31      = ( ! [A: $i,Xphi: $i > $o] :
% 0.06/0.31            ( ~ ! [Xx: $i] :
% 0.06/0.31                  ( ( in @ Xx @ A )
% 0.06/0.31                 => ( Xphi @ Xx ) )
% 0.06/0.31           => ? [Xx: $i] :
% 0.06/0.31                ( ( in @ Xx @ A )
% 0.06/0.31                & ~ ( Xphi @ Xx ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(quantDeMorgan2_type,type,
% 0.06/0.31      quantDeMorgan2: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(quantDeMorgan2,definition,
% 0.06/0.31      ( quantDeMorgan2
% 0.06/0.31      = ( ! [A: $i,Xphi: $i > $o] :
% 0.06/0.31            ( ! [Xx: $i] :
% 0.06/0.31                ( ( in @ Xx @ A )
% 0.06/0.31               => ~ ( Xphi @ Xx ) )
% 0.06/0.31           => ~ ? [Xx: $i] :
% 0.06/0.31                  ( ( in @ Xx @ A )
% 0.06/0.31                  & ( Xphi @ Xx ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(quantDeMorgan3_type,type,
% 0.06/0.31      quantDeMorgan3: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(quantDeMorgan3,definition,
% 0.06/0.31      ( quantDeMorgan3
% 0.06/0.31      = ( ! [A: $i,Xphi: $i > $o] :
% 0.06/0.31            ( ~ ? [Xx: $i] :
% 0.06/0.31                  ( ( in @ Xx @ A )
% 0.06/0.31                  & ( Xphi @ Xx ) )
% 0.06/0.31           => ! [Xx: $i] :
% 0.06/0.31                ( ( in @ Xx @ A )
% 0.06/0.31               => ~ ( Xphi @ Xx ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(quantDeMorgan4_type,type,
% 0.06/0.31      quantDeMorgan4: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(quantDeMorgan4,definition,
% 0.06/0.31      ( quantDeMorgan4
% 0.06/0.31      = ( ! [A: $i,Xphi: $i > $o] :
% 0.06/0.31            ( ? [Xx: $i] :
% 0.06/0.31                ( ( in @ Xx @ A )
% 0.06/0.31                & ~ ( Xphi @ Xx ) )
% 0.06/0.31           => ~ ! [Xx: $i] :
% 0.06/0.31                  ( ( in @ Xx @ A )
% 0.06/0.31                 => ( Xphi @ Xx ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(prop2setI_type,type,
% 0.06/0.31      prop2setI: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(prop2setI,definition,
% 0.06/0.31      ( prop2setI
% 0.06/0.31      = ( ! [Xphi: $o] :
% 0.06/0.31            ( Xphi
% 0.06/0.31           => ( in @ emptyset @ ( prop2set @ Xphi ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(set2prop_type,type,
% 0.06/0.31      set2prop: $i > $o ).
% 0.06/0.31  
% 0.06/0.31  thf(prop2set2propI_type,type,
% 0.06/0.31      prop2set2propI: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(prop2set2propI,definition,
% 0.06/0.31      ( prop2set2propI
% 0.06/0.31      = ( ! [Xphi: $o] :
% 0.06/0.31            ( Xphi
% 0.06/0.31           => ( set2prop @ ( prop2set @ Xphi ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(notdexE_type,type,
% 0.06/0.31      notdexE: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(notdexE,definition,
% 0.06/0.31      ( notdexE
% 0.06/0.31      = ( ! [A: $i,Xphi: $i > $o] :
% 0.06/0.31            ( ~ ? [Xx: $i] :
% 0.06/0.31                  ( ( in @ Xx @ A )
% 0.06/0.31                  & ( Xphi @ Xx ) )
% 0.06/0.31           => ! [Xx: $i] :
% 0.06/0.31                ( ( in @ Xx @ A )
% 0.06/0.31               => ~ ( Xphi @ Xx ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(notdallE_type,type,
% 0.06/0.31      notdallE: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(notdallE,definition,
% 0.06/0.31      ( notdallE
% 0.06/0.31      = ( ! [A: $i,Xphi: $i > $o] :
% 0.06/0.31            ( ~ ! [Xx: $i] :
% 0.06/0.31                  ( ( in @ Xx @ A )
% 0.06/0.31                 => ( Xphi @ Xx ) )
% 0.06/0.31           => ? [Xx: $i] :
% 0.06/0.31                ( ( in @ Xx @ A )
% 0.06/0.31                & ~ ( Xphi @ Xx ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(exuI1_type,type,
% 0.06/0.31      exuI1: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(exuI1,definition,
% 0.06/0.31      ( exuI1
% 0.06/0.31      = ( ! [Xphi: $i > $o] :
% 0.06/0.31            ( ? [Xx: $i] :
% 0.06/0.31                ( ( Xphi @ Xx )
% 0.06/0.31                & ! [Xy: $i] :
% 0.06/0.31                    ( ( Xphi @ Xy )
% 0.06/0.31                   => ( Xx = Xy ) ) )
% 0.06/0.31           => ( exu
% 0.06/0.31              @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(exuI3_type,type,
% 0.06/0.31      exuI3: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(exuI3,definition,
% 0.06/0.31      ( exuI3
% 0.06/0.31      = ( ! [Xphi: $i > $o] :
% 0.06/0.31            ( ? [Xx: $i] : ( Xphi @ Xx )
% 0.06/0.31           => ( ! [Xx: $i,Xy: $i] :
% 0.06/0.31                  ( ( Xphi @ Xx )
% 0.06/0.31                 => ( ( Xphi @ Xy )
% 0.06/0.31                   => ( Xx = Xy ) ) )
% 0.06/0.31             => ( exu
% 0.06/0.31                @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(exuI2_type,type,
% 0.06/0.31      exuI2: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(exuI2,definition,
% 0.06/0.31      ( exuI2
% 0.06/0.31      = ( ! [Xphi: $i > $o] :
% 0.06/0.31            ( ? [Xx: $i] :
% 0.06/0.31              ! [Xy: $i] :
% 0.06/0.31                ( ( Xphi @ Xy )
% 0.06/0.31              <=> ( Xy = Xx ) )
% 0.06/0.31           => ( exu
% 0.06/0.31              @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(inCongP_type,type,
% 0.06/0.31      inCongP: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(inCongP,definition,
% 0.06/0.31      ( inCongP
% 0.06/0.31      = ( ! [A: $i,B: $i] :
% 0.06/0.31            ( ( A = B )
% 0.06/0.31           => ! [Xx: $i,Xy: $i] :
% 0.06/0.31                ( ( Xx = Xy )
% 0.06/0.31               => ( ( in @ Xx @ A )
% 0.06/0.31                 => ( in @ Xy @ B ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(in__Cong_type,type,
% 0.06/0.31      in__Cong: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(in__Cong,definition,
% 0.06/0.31      ( in__Cong
% 0.06/0.31      = ( ! [A: $i,B: $i] :
% 0.06/0.31            ( ( A = B )
% 0.06/0.31           => ! [Xx: $i,Xy: $i] :
% 0.06/0.31                ( ( Xx = Xy )
% 0.06/0.31               => ( ( in @ Xx @ A )
% 0.06/0.31                <=> ( in @ Xy @ B ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(exuE3u_type,type,
% 0.06/0.31      exuE3u: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(exuE3u,definition,
% 0.06/0.31      ( exuE3u
% 0.06/0.31      = ( ! [Xphi: $i > $o] :
% 0.06/0.31            ( ( exu
% 0.06/0.31              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.06/0.31           => ! [Xx: $i,Xy: $i] :
% 0.06/0.31                ( ( Xphi @ Xx )
% 0.06/0.31               => ( ( Xphi @ Xy )
% 0.06/0.31                 => ( Xx = Xy ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(exu__Cong_type,type,
% 0.06/0.31      exu__Cong: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(exu__Cong,definition,
% 0.06/0.31      ( exu__Cong
% 0.06/0.31      = ( ! [Xphi: $i > $o,Xpsi: $i > $o] :
% 0.06/0.31            ( ! [Xx: $i,Xy: $i] :
% 0.06/0.31                ( ( Xx = Xy )
% 0.06/0.31               => ( ( Xphi @ Xx )
% 0.06/0.31                <=> ( Xpsi @ Xy ) ) )
% 0.06/0.31           => ( ( exu
% 0.06/0.31                @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.06/0.31            <=> ( exu
% 0.06/0.31                @ ^ [Xx: $i] : ( Xpsi @ Xx ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(emptyset__Cong_type,type,
% 0.06/0.31      emptyset__Cong: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(emptyset__Cong,definition,
% 0.06/0.31      ( emptyset__Cong
% 0.06/0.31      = ( emptyset = emptyset ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setadjoin__Cong_type,type,
% 0.06/0.31      setadjoin__Cong: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setadjoin__Cong,definition,
% 0.06/0.31      ( setadjoin__Cong
% 0.06/0.31      = ( ! [Xx: $i,Xy: $i] :
% 0.06/0.31            ( ( Xx = Xy )
% 0.06/0.31           => ! [Xz: $i,Xu: $i] :
% 0.06/0.31                ( ( Xz = Xu )
% 0.06/0.31               => ( ( setadjoin @ Xx @ Xz )
% 0.06/0.31                  = ( setadjoin @ Xy @ Xu ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(powerset__Cong_type,type,
% 0.06/0.31      powerset__Cong: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(powerset__Cong,definition,
% 0.06/0.31      ( powerset__Cong
% 0.06/0.31      = ( ! [A: $i,B: $i] :
% 0.06/0.31            ( ( A = B )
% 0.06/0.31           => ( ( powerset @ A )
% 0.06/0.31              = ( powerset @ B ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setunion__Cong_type,type,
% 0.06/0.31      setunion__Cong: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setunion__Cong,definition,
% 0.06/0.31      ( setunion__Cong
% 0.06/0.31      = ( ! [A: $i,B: $i] :
% 0.06/0.31            ( ( A = B )
% 0.06/0.31           => ( ( setunion @ A )
% 0.06/0.31              = ( setunion @ B ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(omega__Cong_type,type,
% 0.06/0.31      omega__Cong: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(omega__Cong,definition,
% 0.06/0.31      ( omega__Cong
% 0.06/0.31      = ( omega = omega ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(exuEu_type,type,
% 0.06/0.31      exuEu: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(exuEu,definition,
% 0.06/0.31      ( exuEu
% 0.06/0.31      = ( ! [Xphi: $i > $o] :
% 0.06/0.31            ( ( exu
% 0.06/0.31              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.06/0.31           => ! [Xx: $i,Xy: $i] :
% 0.06/0.31                ( ( Xphi @ Xx )
% 0.06/0.31               => ( ( Xphi @ Xy )
% 0.06/0.31                 => ( Xx = Xy ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(descr__Cong_type,type,
% 0.06/0.31      descr__Cong: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(descr__Cong,definition,
% 0.06/0.31      ( descr__Cong
% 0.06/0.31      = ( ! [Xphi: $i > $o,Xpsi: $i > $o] :
% 0.06/0.31            ( ! [Xx: $i,Xy: $i] :
% 0.06/0.31                ( ( Xx = Xy )
% 0.06/0.31               => ( ( Xphi @ Xx )
% 0.06/0.31                <=> ( Xpsi @ Xy ) ) )
% 0.06/0.31           => ( ( exu
% 0.06/0.31                @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.06/0.31             => ( ( exu
% 0.06/0.31                  @ ^ [Xx: $i] : ( Xpsi @ Xx ) )
% 0.06/0.31               => ( ( descr
% 0.06/0.31                    @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.06/0.31                  = ( descr
% 0.06/0.31                    @ ^ [Xx: $i] : ( Xpsi @ Xx ) ) ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(dsetconstr__Cong_type,type,
% 0.06/0.31      dsetconstr__Cong: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(dsetconstr__Cong,definition,
% 0.06/0.31      ( dsetconstr__Cong
% 0.06/0.31      = ( ! [A: $i,B: $i] :
% 0.06/0.31            ( ( A = B )
% 0.06/0.31           => ! [Xphi: $i > $o,Xpsi: $i > $o] :
% 0.06/0.31                ( ! [Xx: $i] :
% 0.06/0.31                    ( ( in @ Xx @ A )
% 0.06/0.31                   => ! [Xy: $i] :
% 0.06/0.31                        ( ( in @ Xy @ B )
% 0.06/0.31                       => ( ( Xx = Xy )
% 0.06/0.31                         => ( ( Xphi @ Xx )
% 0.06/0.31                          <=> ( Xpsi @ Xy ) ) ) ) )
% 0.06/0.31               => ( ( dsetconstr @ A
% 0.06/0.31                    @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.06/0.31                  = ( dsetconstr @ B
% 0.06/0.31                    @ ^ [Xx: $i] : ( Xpsi @ Xx ) ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(subset_type,type,
% 0.06/0.31      subset: $i > $i > $o ).
% 0.06/0.31  
% 0.06/0.31  thf(disjoint_type,type,
% 0.06/0.31      disjoint: $i > $i > $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setsmeet_type,type,
% 0.06/0.31      setsmeet: $i > $i > $o ).
% 0.06/0.31  
% 0.06/0.31  thf(subsetI1_type,type,
% 0.06/0.31      subsetI1: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(subsetI1,definition,
% 0.06/0.31      ( subsetI1
% 0.06/0.31      = ( ! [A: $i,B: $i] :
% 0.06/0.31            ( ! [Xx: $i] :
% 0.06/0.31                ( ( in @ Xx @ A )
% 0.06/0.31               => ( in @ Xx @ B ) )
% 0.06/0.31           => ( subset @ A @ B ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(eqimpsubset2_type,type,
% 0.06/0.31      eqimpsubset2: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(eqimpsubset2,definition,
% 0.06/0.31      ( eqimpsubset2
% 0.06/0.31      = ( ! [A: $i,B: $i] :
% 0.06/0.31            ( ( A = B )
% 0.06/0.31           => ( subset @ B @ A ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(eqimpsubset1_type,type,
% 0.06/0.31      eqimpsubset1: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(eqimpsubset1,definition,
% 0.06/0.31      ( eqimpsubset1
% 0.06/0.31      = ( ! [A: $i,B: $i] :
% 0.06/0.31            ( ( A = B )
% 0.06/0.31           => ( subset @ A @ B ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(subsetI2_type,type,
% 0.06/0.31      subsetI2: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(subsetI2,definition,
% 0.06/0.31      ( subsetI2
% 0.06/0.31      = ( ! [A: $i,B: $i] :
% 0.06/0.31            ( ! [Xx: $i] :
% 0.06/0.31                ( ( in @ Xx @ A )
% 0.06/0.31               => ( in @ Xx @ B ) )
% 0.06/0.31           => ( subset @ A @ B ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(emptysetsubset_type,type,
% 0.06/0.31      emptysetsubset: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(emptysetsubset,definition,
% 0.06/0.31      ( emptysetsubset
% 0.06/0.31      = ( ! [A: $i] : ( subset @ emptyset @ A ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(subsetE_type,type,
% 0.06/0.31      subsetE: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(subsetE,definition,
% 0.06/0.31      ( subsetE
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ( subset @ A @ B )
% 0.06/0.31           => ( ( in @ Xx @ A )
% 0.06/0.31             => ( in @ Xx @ B ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(subsetE2_type,type,
% 0.06/0.31      subsetE2: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(subsetE2,definition,
% 0.06/0.31      ( subsetE2
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ( subset @ A @ B )
% 0.06/0.31           => ( ~ ( in @ Xx @ B )
% 0.06/0.31             => ~ ( in @ Xx @ A ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(notsubsetI_type,type,
% 0.06/0.31      notsubsetI: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(notsubsetI,definition,
% 0.06/0.31      ( notsubsetI
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ A )
% 0.06/0.31           => ( ~ ( in @ Xx @ B )
% 0.06/0.31             => ~ ( subset @ A @ B ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(notequalI1_type,type,
% 0.06/0.31      notequalI1: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(notequalI1,definition,
% 0.06/0.31      ( notequalI1
% 0.06/0.31      = ( ! [A: $i,B: $i] :
% 0.06/0.31            ( ~ ( subset @ A @ B )
% 0.06/0.31           => ( A != B ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(notequalI2_type,type,
% 0.06/0.31      notequalI2: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(notequalI2,definition,
% 0.06/0.31      ( notequalI2
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ A )
% 0.06/0.31           => ( ~ ( in @ Xx @ B )
% 0.06/0.31             => ( A != B ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(subsetRefl_type,type,
% 0.06/0.31      subsetRefl: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(subsetRefl,definition,
% 0.06/0.31      ( subsetRefl
% 0.06/0.31      = ( ! [A: $i] : ( subset @ A @ A ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(subsetTrans_type,type,
% 0.06/0.31      subsetTrans: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(subsetTrans,definition,
% 0.06/0.31      ( subsetTrans
% 0.06/0.31      = ( ! [A: $i,B: $i,C: $i] :
% 0.06/0.31            ( ( subset @ A @ B )
% 0.06/0.31           => ( ( subset @ B @ C )
% 0.06/0.31             => ( subset @ A @ C ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setadjoinSub_type,type,
% 0.06/0.31      setadjoinSub: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setadjoinSub,definition,
% 0.06/0.31      ( setadjoinSub
% 0.06/0.31      = ( ! [Xx: $i,A: $i] : ( subset @ A @ ( setadjoin @ Xx @ A ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setadjoinSub2_type,type,
% 0.06/0.31      setadjoinSub2: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setadjoinSub2,definition,
% 0.06/0.31      ( setadjoinSub2
% 0.06/0.31      = ( ! [A: $i,Xx: $i,B: $i] :
% 0.06/0.31            ( ( subset @ A @ B )
% 0.06/0.31           => ( subset @ A @ ( setadjoin @ Xx @ B ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(subset2powerset_type,type,
% 0.06/0.31      subset2powerset: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(subset2powerset,definition,
% 0.06/0.31      ( subset2powerset
% 0.06/0.31      = ( ! [A: $i,B: $i] :
% 0.06/0.31            ( ( subset @ A @ B )
% 0.06/0.31           => ( in @ A @ ( powerset @ B ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setextsub_type,type,
% 0.06/0.31      setextsub: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setextsub,definition,
% 0.06/0.31      ( setextsub
% 0.06/0.31      = ( ! [A: $i,B: $i] :
% 0.06/0.31            ( ( subset @ A @ B )
% 0.06/0.31           => ( ( subset @ B @ A )
% 0.06/0.31             => ( A = B ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(subsetemptysetimpeq_type,type,
% 0.06/0.31      subsetemptysetimpeq: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(subsetemptysetimpeq,definition,
% 0.06/0.31      ( subsetemptysetimpeq
% 0.06/0.31      = ( ! [A: $i] :
% 0.06/0.31            ( ( subset @ A @ emptyset )
% 0.06/0.31           => ( A = emptyset ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(powersetI1_type,type,
% 0.06/0.31      powersetI1: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(powersetI1,definition,
% 0.06/0.31      ( powersetI1
% 0.06/0.31      = ( ! [A: $i,B: $i] :
% 0.06/0.31            ( ( subset @ B @ A )
% 0.06/0.31           => ( in @ B @ ( powerset @ A ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(powersetE1_type,type,
% 0.06/0.31      powersetE1: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(powersetE1,definition,
% 0.06/0.31      ( powersetE1
% 0.06/0.31      = ( ! [A: $i,B: $i] :
% 0.06/0.31            ( ( in @ B @ ( powerset @ A ) )
% 0.06/0.31           => ( subset @ B @ A ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(inPowerset_type,type,
% 0.06/0.31      inPowerset: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(inPowerset,definition,
% 0.06/0.31      ( inPowerset
% 0.06/0.31      = ( ! [A: $i] : ( in @ A @ ( powerset @ A ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(powersetsubset_type,type,
% 0.06/0.31      powersetsubset: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(powersetsubset,definition,
% 0.06/0.31      ( powersetsubset
% 0.06/0.31      = ( ! [A: $i,B: $i] :
% 0.06/0.31            ( ( subset @ A @ B )
% 0.06/0.31           => ( subset @ ( powerset @ A ) @ ( powerset @ B ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(sepInPowerset_type,type,
% 0.06/0.31      sepInPowerset: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(sepInPowerset,definition,
% 0.06/0.31      ( sepInPowerset
% 0.06/0.31      = ( ! [A: $i,Xphi: $i > $o] :
% 0.06/0.31            ( in
% 0.06/0.31            @ ( dsetconstr @ A
% 0.06/0.31              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.06/0.31            @ ( powerset @ A ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(sepSubset_type,type,
% 0.06/0.31      sepSubset: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(sepSubset,definition,
% 0.06/0.31      ( sepSubset
% 0.06/0.31      = ( ! [A: $i,Xphi: $i > $o] :
% 0.06/0.31            ( subset
% 0.06/0.31            @ ( dsetconstr @ A
% 0.06/0.31              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 0.06/0.31            @ A ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(binunion_type,type,
% 0.06/0.31      binunion: $i > $i > $i ).
% 0.06/0.31  
% 0.06/0.31  thf(binunionIL_type,type,
% 0.06/0.31      binunionIL: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(binunionIL,definition,
% 0.06/0.31      ( binunionIL
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ A )
% 0.06/0.31           => ( in @ Xx @ ( binunion @ A @ B ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(upairset2IR_type,type,
% 0.06/0.31      upairset2IR: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(upairset2IR,definition,
% 0.06/0.31      ( upairset2IR
% 0.06/0.31      = ( ! [Xx: $i,Xy: $i] : ( in @ Xy @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(binunionIR_type,type,
% 0.06/0.31      binunionIR: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(binunionIR,definition,
% 0.06/0.31      ( binunionIR
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ B )
% 0.06/0.31           => ( in @ Xx @ ( binunion @ A @ B ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(binunionEcases_type,type,
% 0.06/0.31      binunionEcases: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(binunionEcases,definition,
% 0.06/0.31      ( binunionEcases
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i,Xphi: $o] :
% 0.06/0.31            ( ( in @ Xx @ ( binunion @ A @ B ) )
% 0.06/0.31           => ( ( ( in @ Xx @ A )
% 0.06/0.31               => Xphi )
% 0.06/0.31             => ( ( ( in @ Xx @ B )
% 0.06/0.31                 => Xphi )
% 0.06/0.31               => Xphi ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(binunionE_type,type,
% 0.06/0.31      binunionE: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(binunionE,definition,
% 0.06/0.31      ( binunionE
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ ( binunion @ A @ B ) )
% 0.06/0.31           => ( ( in @ Xx @ A )
% 0.06/0.31              | ( in @ Xx @ B ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(binunionLsub_type,type,
% 0.06/0.31      binunionLsub: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(binunionLsub,definition,
% 0.06/0.31      ( binunionLsub
% 0.06/0.31      = ( ! [A: $i,B: $i] : ( subset @ A @ ( binunion @ A @ B ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(binunionRsub_type,type,
% 0.06/0.31      binunionRsub: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(binunionRsub,definition,
% 0.06/0.31      ( binunionRsub
% 0.06/0.31      = ( ! [A: $i,B: $i] : ( subset @ B @ ( binunion @ A @ B ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(binintersect_type,type,
% 0.06/0.31      binintersect: $i > $i > $i ).
% 0.06/0.31  
% 0.06/0.31  thf(binintersectI_type,type,
% 0.06/0.31      binintersectI: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(binintersectI,definition,
% 0.06/0.31      ( binintersectI
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ A )
% 0.06/0.31           => ( ( in @ Xx @ B )
% 0.06/0.31             => ( in @ Xx @ ( binintersect @ A @ B ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(binintersectSubset5_type,type,
% 0.06/0.31      binintersectSubset5: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(binintersectSubset5,definition,
% 0.06/0.31      ( binintersectSubset5
% 0.06/0.31      = ( ! [A: $i,B: $i,C: $i] :
% 0.06/0.31            ( ( subset @ C @ A )
% 0.06/0.31           => ( ( subset @ C @ B )
% 0.06/0.31             => ( subset @ C @ ( binintersect @ A @ B ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(binintersectEL_type,type,
% 0.06/0.31      binintersectEL: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(binintersectEL,definition,
% 0.06/0.31      ( binintersectEL
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ ( binintersect @ A @ B ) )
% 0.06/0.31           => ( in @ Xx @ A ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(binintersectLsub_type,type,
% 0.06/0.31      binintersectLsub: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(binintersectLsub,definition,
% 0.06/0.31      ( binintersectLsub
% 0.06/0.31      = ( ! [A: $i,B: $i] : ( subset @ ( binintersect @ A @ B ) @ A ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(binintersectSubset2_type,type,
% 0.06/0.31      binintersectSubset2: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(binintersectSubset2,definition,
% 0.06/0.31      ( binintersectSubset2
% 0.06/0.31      = ( ! [A: $i,B: $i] :
% 0.06/0.31            ( ( subset @ A @ B )
% 0.06/0.31           => ( ( binintersect @ A @ B )
% 0.06/0.31              = A ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(binintersectSubset3_type,type,
% 0.06/0.31      binintersectSubset3: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(binintersectSubset3,definition,
% 0.06/0.31      ( binintersectSubset3
% 0.06/0.31      = ( ! [A: $i,B: $i] :
% 0.06/0.31            ( ( ( binintersect @ A @ B )
% 0.06/0.31              = B )
% 0.06/0.31           => ( subset @ B @ A ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(binintersectER_type,type,
% 0.06/0.31      binintersectER: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(binintersectER,definition,
% 0.06/0.31      ( binintersectER
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ ( binintersect @ A @ B ) )
% 0.06/0.31           => ( in @ Xx @ B ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(disjointsetsI1_type,type,
% 0.06/0.31      disjointsetsI1: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(disjointsetsI1,definition,
% 0.06/0.31      ( disjointsetsI1
% 0.06/0.31      = ( ! [A: $i,B: $i] :
% 0.06/0.31            ( ~ ? [Xx: $i] :
% 0.06/0.31                  ( ( in @ Xx @ A )
% 0.06/0.31                  & ( in @ Xx @ B ) )
% 0.06/0.31           => ( ( binintersect @ A @ B )
% 0.06/0.31              = emptyset ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(binintersectRsub_type,type,
% 0.06/0.31      binintersectRsub: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(binintersectRsub,definition,
% 0.06/0.31      ( binintersectRsub
% 0.06/0.31      = ( ! [A: $i,B: $i] : ( subset @ ( binintersect @ A @ B ) @ B ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(binintersectSubset4_type,type,
% 0.06/0.31      binintersectSubset4: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(binintersectSubset4,definition,
% 0.06/0.31      ( binintersectSubset4
% 0.06/0.31      = ( ! [A: $i,B: $i] :
% 0.06/0.31            ( ( subset @ B @ A )
% 0.06/0.31           => ( ( binintersect @ A @ B )
% 0.06/0.31              = B ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(binintersectSubset1_type,type,
% 0.06/0.31      binintersectSubset1: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(binintersectSubset1,definition,
% 0.06/0.31      ( binintersectSubset1
% 0.06/0.31      = ( ! [A: $i,B: $i] :
% 0.06/0.31            ( ( ( binintersect @ A @ B )
% 0.06/0.31              = A )
% 0.06/0.31           => ( subset @ A @ B ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(bs114d_type,type,
% 0.06/0.31      bs114d: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(bs114d,definition,
% 0.06/0.31      ( bs114d
% 0.06/0.31      = ( ! [A: $i,B: $i,C: $i] :
% 0.06/0.31            ( ( binintersect @ A @ ( binunion @ B @ C ) )
% 0.06/0.31            = ( binunion @ ( binintersect @ A @ B ) @ ( binintersect @ A @ C ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(regular_type,type,
% 0.06/0.31      regular: $i > $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setminus_type,type,
% 0.06/0.31      setminus: $i > $i > $i ).
% 0.06/0.31  
% 0.06/0.31  thf(setminusI_type,type,
% 0.06/0.31      setminusI: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setminusI,definition,
% 0.06/0.31      ( setminusI
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ A )
% 0.06/0.31           => ( ~ ( in @ Xx @ B )
% 0.06/0.31             => ( in @ Xx @ ( setminus @ A @ B ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setminusEL_type,type,
% 0.06/0.31      setminusEL: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setminusEL,definition,
% 0.06/0.31      ( setminusEL
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ ( setminus @ A @ B ) )
% 0.06/0.31           => ( in @ Xx @ A ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setminusER_type,type,
% 0.06/0.31      setminusER: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setminusER,definition,
% 0.06/0.31      ( setminusER
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ ( setminus @ A @ B ) )
% 0.06/0.31           => ~ ( in @ Xx @ B ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setminusSubset2_type,type,
% 0.06/0.31      setminusSubset2: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setminusSubset2,definition,
% 0.06/0.31      ( setminusSubset2
% 0.06/0.31      = ( ! [A: $i,B: $i] :
% 0.06/0.31            ( ( subset @ A @ B )
% 0.06/0.31           => ( ( setminus @ A @ B )
% 0.06/0.31              = emptyset ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setminusERneg_type,type,
% 0.06/0.31      setminusERneg: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setminusERneg,definition,
% 0.06/0.31      ( setminusERneg
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ~ ( in @ Xx @ ( setminus @ A @ B ) )
% 0.06/0.31           => ( ( in @ Xx @ A )
% 0.06/0.31             => ( in @ Xx @ B ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setminusELneg_type,type,
% 0.06/0.31      setminusELneg: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setminusELneg,definition,
% 0.06/0.31      ( setminusELneg
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ~ ( in @ Xx @ ( setminus @ A @ B ) )
% 0.06/0.31           => ( ~ ( in @ Xx @ B )
% 0.06/0.31             => ~ ( in @ Xx @ A ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setminusILneg_type,type,
% 0.06/0.31      setminusILneg: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setminusILneg,definition,
% 0.06/0.31      ( setminusILneg
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ~ ( in @ Xx @ A )
% 0.06/0.31           => ~ ( in @ Xx @ ( setminus @ A @ B ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setminusIRneg_type,type,
% 0.06/0.31      setminusIRneg: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setminusIRneg,definition,
% 0.06/0.31      ( setminusIRneg
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ B )
% 0.06/0.31           => ~ ( in @ Xx @ ( setminus @ A @ B ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setminusLsub_type,type,
% 0.06/0.31      setminusLsub: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setminusLsub,definition,
% 0.06/0.31      ( setminusLsub
% 0.06/0.31      = ( ! [A: $i,B: $i] : ( subset @ ( setminus @ A @ B ) @ A ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setminusSubset1_type,type,
% 0.06/0.31      setminusSubset1: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setminusSubset1,definition,
% 0.06/0.31      ( setminusSubset1
% 0.06/0.31      = ( ! [A: $i,B: $i] :
% 0.06/0.31            ( ( ( setminus @ A @ B )
% 0.06/0.31              = emptyset )
% 0.06/0.31           => ( subset @ A @ B ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(symdiff_type,type,
% 0.06/0.31      symdiff: $i > $i > $i ).
% 0.06/0.31  
% 0.06/0.31  thf(symdiffE_type,type,
% 0.06/0.31      symdiffE: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(symdiffE,definition,
% 0.06/0.31      ( symdiffE
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ ( symdiff @ A @ B ) )
% 0.06/0.31           => ! [Xphi: $o] :
% 0.06/0.31                ( ( ( in @ Xx @ A )
% 0.06/0.31                 => ( ~ ( in @ Xx @ B )
% 0.06/0.31                   => Xphi ) )
% 0.06/0.31               => ( ( ~ ( in @ Xx @ A )
% 0.06/0.31                   => ( ( in @ Xx @ B )
% 0.06/0.31                     => Xphi ) )
% 0.06/0.31                 => Xphi ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(symdiffI1_type,type,
% 0.06/0.31      symdiffI1: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(symdiffI1,definition,
% 0.06/0.31      ( symdiffI1
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ A )
% 0.06/0.31           => ( ~ ( in @ Xx @ B )
% 0.06/0.31             => ( in @ Xx @ ( symdiff @ A @ B ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(symdiffI2_type,type,
% 0.06/0.31      symdiffI2: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(symdiffI2,definition,
% 0.06/0.31      ( symdiffI2
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ~ ( in @ Xx @ A )
% 0.06/0.31           => ( ( in @ Xx @ B )
% 0.06/0.31             => ( in @ Xx @ ( symdiff @ A @ B ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(symdiffIneg1_type,type,
% 0.06/0.31      symdiffIneg1: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(symdiffIneg1,definition,
% 0.06/0.31      ( symdiffIneg1
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ A )
% 0.06/0.31           => ( ( in @ Xx @ B )
% 0.06/0.31             => ~ ( in @ Xx @ ( symdiff @ A @ B ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(symdiffIneg2_type,type,
% 0.06/0.31      symdiffIneg2: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(symdiffIneg2,definition,
% 0.06/0.31      ( symdiffIneg2
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ~ ( in @ Xx @ A )
% 0.06/0.31           => ( ~ ( in @ Xx @ B )
% 0.06/0.31             => ~ ( in @ Xx @ ( symdiff @ A @ B ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(iskpair_type,type,
% 0.06/0.31      iskpair: $i > $o ).
% 0.06/0.31  
% 0.06/0.31  thf(iskpair,definition,
% 0.06/0.31      ( iskpair
% 0.06/0.31      = ( ^ [A: $i] :
% 0.06/0.31          ? [Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ ( setunion @ A ) )
% 0.06/0.31            & ? [Xy: $i] :
% 0.06/0.31                ( ( in @ Xy @ ( setunion @ A ) )
% 0.06/0.31                & ( A
% 0.06/0.31                  = ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(secondinupair_type,type,
% 0.06/0.31      secondinupair: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(secondinupair,definition,
% 0.06/0.31      ( secondinupair
% 0.06/0.31      = ( ! [Xx: $i,Xy: $i] : ( in @ Xy @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setukpairIL_type,type,
% 0.06/0.31      setukpairIL: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setukpairIL,definition,
% 0.06/0.31      ( setukpairIL
% 0.06/0.31      = ( ! [Xx: $i,Xy: $i] : ( in @ Xx @ ( setunion @ ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setukpairIR_type,type,
% 0.06/0.31      setukpairIR: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(setukpairIR,definition,
% 0.06/0.31      ( setukpairIR
% 0.06/0.31      = ( ! [Xx: $i,Xy: $i] : ( in @ Xy @ ( setunion @ ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(kpairiskpair_type,type,
% 0.06/0.31      kpairiskpair: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(kpairiskpair,definition,
% 0.06/0.31      ( kpairiskpair
% 0.06/0.31      = ( ! [Xx: $i,Xy: $i] : ( iskpair @ ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(kpair_type,type,
% 0.06/0.31      kpair: $i > $i > $i ).
% 0.06/0.31  
% 0.06/0.31  thf(kpair,definition,
% 0.06/0.31      ( kpair
% 0.06/0.31      = ( ^ [Xx: $i,Xy: $i] : ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(kpairp_type,type,
% 0.06/0.31      kpairp: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(kpairp,definition,
% 0.06/0.31      ( kpairp
% 0.06/0.31      = ( ! [Xx: $i,Xy: $i] : ( iskpair @ ( kpair @ Xx @ Xy ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(cartprod_type,type,
% 0.06/0.31      cartprod: $i > $i > $i ).
% 0.06/0.31  
% 0.06/0.31  thf(singletonsubset_type,type,
% 0.06/0.31      singletonsubset: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(singletonsubset,definition,
% 0.06/0.31      ( singletonsubset
% 0.06/0.31      = ( ! [A: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ A )
% 0.06/0.31           => ( subset @ ( setadjoin @ Xx @ emptyset ) @ A ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(singletoninpowerset_type,type,
% 0.06/0.31      singletoninpowerset: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(singletoninpowerset,definition,
% 0.06/0.31      ( singletoninpowerset
% 0.06/0.31      = ( ! [A: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ A )
% 0.06/0.31           => ( in @ ( setadjoin @ Xx @ emptyset ) @ ( powerset @ A ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(singletoninpowunion_type,type,
% 0.06/0.31      singletoninpowunion: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(singletoninpowunion,definition,
% 0.06/0.31      ( singletoninpowunion
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ A )
% 0.06/0.31           => ( in @ ( setadjoin @ Xx @ emptyset ) @ ( powerset @ ( binunion @ A @ B ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(upairset2E_type,type,
% 0.06/0.31      upairset2E: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(upairset2E,definition,
% 0.06/0.31      ( upairset2E
% 0.06/0.31      = ( ! [Xx: $i,Xy: $i,Xz: $i] :
% 0.06/0.31            ( ( in @ Xz @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) )
% 0.06/0.31           => ( ( Xz = Xx )
% 0.06/0.31              | ( Xz = Xy ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(upairsubunion_type,type,
% 0.06/0.31      upairsubunion: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(upairsubunion,definition,
% 0.06/0.31      ( upairsubunion
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ A )
% 0.06/0.31           => ! [Xy: $i] :
% 0.06/0.31                ( ( in @ Xy @ B )
% 0.06/0.31               => ( subset @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ ( binunion @ A @ B ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(upairinpowunion_type,type,
% 0.06/0.31      upairinpowunion: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(upairinpowunion,definition,
% 0.06/0.31      ( upairinpowunion
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ A )
% 0.06/0.31           => ! [Xy: $i] :
% 0.06/0.31                ( ( in @ Xy @ B )
% 0.06/0.31               => ( in @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ ( powerset @ ( binunion @ A @ B ) ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(ubforcartprodlem1_type,type,
% 0.06/0.31      ubforcartprodlem1: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(ubforcartprodlem1,definition,
% 0.06/0.31      ( ubforcartprodlem1
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ A )
% 0.06/0.31           => ! [Xy: $i] :
% 0.06/0.31                ( ( in @ Xy @ B )
% 0.06/0.31               => ( subset @ ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) @ ( powerset @ ( binunion @ A @ B ) ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(ubforcartprodlem2_type,type,
% 0.06/0.31      ubforcartprodlem2: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(ubforcartprodlem2,definition,
% 0.06/0.31      ( ubforcartprodlem2
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ A )
% 0.06/0.31           => ! [Xy: $i] :
% 0.06/0.31                ( ( in @ Xy @ B )
% 0.06/0.31               => ( in @ ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) @ ( powerset @ ( powerset @ ( binunion @ A @ B ) ) ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(ubforcartprodlem3_type,type,
% 0.06/0.31      ubforcartprodlem3: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(ubforcartprodlem3,definition,
% 0.06/0.31      ( ubforcartprodlem3
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ A )
% 0.06/0.31           => ! [Xy: $i] :
% 0.06/0.31                ( ( in @ Xy @ B )
% 0.06/0.31               => ( in @ ( kpair @ Xx @ Xy ) @ ( powerset @ ( powerset @ ( binunion @ A @ B ) ) ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(cartprodpairin_type,type,
% 0.06/0.31      cartprodpairin: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(cartprodpairin,definition,
% 0.06/0.31      ( cartprodpairin
% 0.06/0.31      = ( ! [A: $i,B: $i,Xx: $i] :
% 0.06/0.31            ( ( in @ Xx @ A )
% 0.06/0.31           => ! [Xy: $i] :
% 0.06/0.31                ( ( in @ Xy @ B )
% 0.06/0.31               => ( in @ ( kpair @ Xx @ Xy ) @ ( cartprod @ A @ B ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(cartprodmempair1_type,type,
% 0.06/0.31      cartprodmempair1: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(cartprodmempair1,definition,
% 0.06/0.31      ( cartprodmempair1
% 0.06/0.31      = ( ! [A: $i,B: $i,Xu: $i] :
% 0.06/0.31            ( ( in @ Xu @ ( cartprod @ A @ B ) )
% 0.06/0.31           => ? [Xx: $i] :
% 0.06/0.31                ( ( in @ Xx @ A )
% 0.06/0.31                & ? [Xy: $i] :
% 0.06/0.31                    ( ( in @ Xy @ B )
% 0.06/0.31                    & ( Xu
% 0.06/0.31                      = ( kpair @ Xx @ Xy ) ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(cartprodmempair_type,type,
% 0.06/0.31      cartprodmempair: $o ).
% 0.06/0.31  
% 0.06/0.31  thf(cartprodmempair,definition,
% 0.06/0.31      ( cartprodmempair
% 0.06/0.31      = ( ! [A: $i,B: $i,Xu: $i] :
% 0.06/0.31            ( ( in @ Xu @ ( cartprod @ A @ B ) )
% 0.06/0.31           => ( iskpair @ Xu ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  thf(setunionE2,conjecture,
% 0.06/0.31      ( setextAx
% 0.06/0.31     => ( emptysetAx
% 0.06/0.31       => ( setadjoinAx
% 0.06/0.31         => ( powersetAx
% 0.06/0.31           => ( setunionAx
% 0.06/0.31             => ( omega0Ax
% 0.06/0.31               => ( omegaSAx
% 0.06/0.31                 => ( omegaIndAx
% 0.06/0.31                   => ( replAx
% 0.06/0.31                     => ( foundationAx
% 0.06/0.31                       => ( wellorderingAx
% 0.06/0.31                         => ( descrp
% 0.06/0.31                           => ( dsetconstrI
% 0.06/0.31                             => ( dsetconstrEL
% 0.06/0.31                               => ( dsetconstrER
% 0.06/0.31                                 => ( exuE1
% 0.06/0.31                                   => ( prop2setE
% 0.06/0.31                                     => ( emptysetE
% 0.06/0.31                                       => ( emptysetimpfalse
% 0.06/0.31                                         => ( notinemptyset
% 0.06/0.31                                           => ( exuE3e
% 0.06/0.31                                             => ( setext
% 0.06/0.31                                               => ( emptyI
% 0.06/0.31                                                 => ( noeltsimpempty
% 0.06/0.31                                                   => ( setbeta
% 0.06/0.31                                                     => ( nonemptyE1
% 0.06/0.31                                                       => ( nonemptyI
% 0.06/0.31                                                         => ( nonemptyI1
% 0.06/0.31                                                           => ( setadjoinIL
% 0.06/0.31                                                             => ( emptyinunitempty
% 0.06/0.31                                                               => ( setadjoinIR
% 0.06/0.31                                                                 => ( setadjoinE
% 0.06/0.31                                                                   => ( setadjoinOr
% 0.06/0.31                                                                     => ( setoftrueEq
% 0.06/0.31                                                                       => ( powersetI
% 0.06/0.31                                                                         => ( emptyinPowerset
% 0.06/0.31                                                                           => ( emptyInPowerset
% 0.06/0.31                                                                             => ( powersetE
% 0.06/0.31                                                                               => ( setunionI
% 0.06/0.31                                                                                 => ( setunionE
% 0.06/0.31                                                                                   => ( subPowSU
% 0.06/0.31                                                                                     => ( exuE2
% 0.06/0.31                                                                                       => ( nonemptyImpWitness
% 0.06/0.31                                                                                         => ( uniqinunit
% 0.06/0.31                                                                                           => ( notinsingleton
% 0.06/0.31                                                                                             => ( eqinunit
% 0.06/0.31                                                                                               => ( singletonsswitch
% 0.06/0.31                                                                                                 => ( upairsetE
% 0.06/0.31                                                                                                   => ( upairsetIL
% 0.06/0.31                                                                                                     => ( upairsetIR
% 0.06/0.31                                                                                                       => ( emptyE1
% 0.06/0.31                                                                                                         => ( vacuousDall
% 0.06/0.31                                                                                                           => ( quantDeMorgan1
% 0.06/0.31                                                                                                             => ( quantDeMorgan2
% 0.06/0.31                                                                                                               => ( quantDeMorgan3
% 0.06/0.31                                                                                                                 => ( quantDeMorgan4
% 0.06/0.31                                                                                                                   => ( prop2setI
% 0.06/0.31                                                                                                                     => ( prop2set2propI
% 0.06/0.31                                                                                                                       => ( notdexE
% 0.06/0.31                                                                                                                         => ( notdallE
% 0.06/0.31                                                                                                                           => ( exuI1
% 0.06/0.31                                                                                                                             => ( exuI3
% 0.06/0.31                                                                                                                               => ( exuI2
% 0.06/0.31                                                                                                                                 => ( inCongP
% 0.06/0.31                                                                                                                                   => ( in__Cong
% 0.06/0.31                                                                                                                                     => ( exuE3u
% 0.06/0.31                                                                                                                                       => ( exu__Cong
% 0.06/0.31                                                                                                                                         => ( emptyset__Cong
% 0.06/0.31                                                                                                                                           => ( setadjoin__Cong
% 0.06/0.31                                                                                                                                             => ( powerset__Cong
% 0.06/0.31                                                                                                                                               => ( setunion__Cong
% 0.06/0.31                                                                                                                                                 => ( omega__Cong
% 0.06/0.31                                                                                                                                                   => ( exuEu
% 0.06/0.31                                                                                                                                                     => ( descr__Cong
% 0.06/0.31                                                                                                                                                       => ( dsetconstr__Cong
% 0.06/0.31                                                                                                                                                         => ( subsetI1
% 0.06/0.31                                                                                                                                                           => ( eqimpsubset2
% 0.06/0.31                                                                                                                                                             => ( eqimpsubset1
% 0.06/0.31                                                                                                                                                               => ( subsetI2
% 0.06/0.31                                                                                                                                                                 => ( emptysetsubset
% 0.06/0.31                                                                                                                                                                   => ( subsetE
% 0.06/0.31                                                                                                                                                                     => ( subsetE2
% 0.06/0.31                                                                                                                                                                       => ( notsubsetI
% 0.06/0.31                                                                                                                                                                         => ( notequalI1
% 0.06/0.31                                                                                                                                                                           => ( notequalI2
% 0.06/0.31                                                                                                                                                                             => ( subsetRefl
% 0.06/0.31                                                                                                                                                                               => ( subsetTrans
% 0.06/0.31                                                                                                                                                                                 => ( setadjoinSub
% 0.06/0.31                                                                                                                                                                                   => ( setadjoinSub2
% 0.06/0.31                                                                                                                                                                                     => ( subset2powerset
% 0.06/0.31                                                                                                                                                                                       => ( setextsub
% 0.06/0.31                                                                                                                                                                                         => ( subsetemptysetimpeq
% 0.06/0.31                                                                                                                                                                                           => ( powersetI1
% 0.06/0.31                                                                                                                                                                                             => ( powersetE1
% 0.06/0.31                                                                                                                                                                                               => ( inPowerset
% 0.06/0.31                                                                                                                                                                                                 => ( powersetsubset
% 0.06/0.31                                                                                                                                                                                                   => ( sepInPowerset
% 0.06/0.31                                                                                                                                                                                                     => ( sepSubset
% 0.06/0.31                                                                                                                                                                                                       => ( binunionIL
% 0.06/0.31                                                                                                                                                                                                         => ( upairset2IR
% 0.06/0.31                                                                                                                                                                                                           => ( binunionIR
% 0.06/0.31                                                                                                                                                                                                             => ( binunionEcases
% 0.06/0.31                                                                                                                                                                                                               => ( binunionE
% 0.06/0.31                                                                                                                                                                                                                 => ( binunionLsub
% 0.06/0.31                                                                                                                                                                                                                   => ( binunionRsub
% 0.06/0.31                                                                                                                                                                                                                     => ( binintersectI
% 0.06/0.31                                                                                                                                                                                                                       => ( binintersectSubset5
% 0.06/0.31                                                                                                                                                                                                                         => ( binintersectEL
% 0.06/0.31                                                                                                                                                                                                                           => ( binintersectLsub
% 0.06/0.31                                                                                                                                                                                                                             => ( binintersectSubset2
% 0.06/0.31                                                                                                                                                                                                                               => ( binintersectSubset3
% 0.06/0.31                                                                                                                                                                                                                                 => ( binintersectER
% 0.06/0.31                                                                                                                                                                                                                                   => ( disjointsetsI1
% 0.06/0.31                                                                                                                                                                                                                                     => ( binintersectRsub
% 0.06/0.31                                                                                                                                                                                                                                       => ( binintersectSubset4
% 0.06/0.31                                                                                                                                                                                                                                         => ( binintersectSubset1
% 0.06/0.31                                                                                                                                                                                                                                           => ( bs114d
% 0.06/0.31                                                                                                                                                                                                                                             => ( setminusI
% 0.06/0.31                                                                                                                                                                                                                                               => ( setminusEL
% 0.06/0.31                                                                                                                                                                                                                                                 => ( setminusER
% 0.06/0.31                                                                                                                                                                                                                                                   => ( setminusSubset2
% 0.06/0.31                                                                                                                                                                                                                                                     => ( setminusERneg
% 0.06/0.31                                                                                                                                                                                                                                                       => ( setminusELneg
% 0.06/0.31                                                                                                                                                                                                                                                         => ( setminusILneg
% 0.06/0.31                                                                                                                                                                                                                                                           => ( setminusIRneg
% 0.06/0.31                                                                                                                                                                                                                                                             => ( setminusLsub
% 0.06/0.31                                                                                                                                                                                                                                                               => ( setminusSubset1
% 0.06/0.31                                                                                                                                                                                                                                                                 => ( symdiffE
% 0.06/0.31                                                                                                                                                                                                                                                                   => ( symdiffI1
% 0.06/0.31                                                                                                                                                                                                                                                                     => ( symdiffI2
% 0.06/0.31                                                                                                                                                                                                                                                                       => ( symdiffIneg1
% 0.06/0.31                                                                                                                                                                                                                                                                         => ( symdiffIneg2
% 0.06/0.31                                                                                                                                                                                                                                                                           => ( secondinupair
% 0.06/0.31                                                                                                                                                                                                                                                                             => ( setukpairIL
% 0.06/0.31                                                                                                                                                                                                                                                                               => ( setukpairIR
% 0.06/0.31                                                                                                                                                                                                                                                                                 => ( kpairiskpair
% 0.06/0.31                                                                                                                                                                                                                                                                                   => ( kpairp
% 0.06/0.31                                                                                                                                                                                                                                                                                     => ( singletonsubset
% 0.06/0.31                                                                                                                                                                                                                                                                                       => ( singletoninpowerset
% 0.06/0.31                                                                                                                                                                                                                                                                                         => ( singletoninpowunion
% 0.06/0.31                                                                                                                                                                                                                                                                                           => ( upairset2E
% 0.06/0.31                                                                                                                                                                                                                                                                                             => ( upairsubunion
% 0.06/0.31                                                                                                                                                                                                                                                                                               => ( upairinpowunion
% 0.06/0.31                                                                                                                                                                                                                                                                                                 => ( ubforcartprodlem1
% 0.06/0.31                                                                                                                                                                                                                                                                                                   => ( ubforcartprodlem2
% 0.06/0.31                                                                                                                                                                                                                                                                                                     => ( ubforcartprodlem3
% 0.06/0.31                                                                                                                                                                                                                                                                                                       => ( cartprodpairin
% 0.06/0.31                                                                                                                                                                                                                                                                                                         => ( cartprodmempair1
% 0.06/0.31                                                                                                                                                                                                                                                                                                           => ( cartprodmempair
% 0.06/0.31                                                                                                                                                                                                                                                                                                             => ! [A: $i,Xx: $i] :
% 0.06/0.31                                                                                                                                                                                                                                                                                                                  ( ( in @ Xx @ ( setunion @ A ) )
% 0.06/0.31                                                                                                                                                                                                                                                                                                                 => ? [X: $i] :
% 0.06/0.31                                                                                                                                                                                                                                                                                                                      ( ( in @ X @ A )
% 0.06/0.31                                                                                                                                                                                                                                                                                                                      & ( in @ Xx @ X ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ).
% 0.06/0.31  
% 0.06/0.31  %------------------------------------------------------------------------------
% 0.06/0.31  ------------------------
% 1.54/1.06  ---- Embedded in THF ---
% 1.54/1.07  %%% This output was generated by embedproblem, version 1.9.5 (library version 1.9).
% 1.54/1.07  %%% Generated on Tue Feb 24 07:29:11 EST 2026
% 1.54/1.07  %%% using '$$dhol' embedding, version 1.3.0.
% 1.54/1.07  %%% Logic specification used:
% 1.54/1.07  %%% thf(spec, logic, $$dhol).
% 1.54/1.07  
% 1.54/1.07  % SZS output start ListOfTHF for /export/starexec/sandbox2/tmp/tmp.9E07OigdIH/DTF2DTF24674.p
% See solution above
% 1.54/1.07  ------------------------
% 1.54/1.08  ---- Cleaned THF ---
% 1.54/1.08  thf(in_type,type,
% 1.54/1.08      in: $i > $i > $o ).
% 1.54/1.08  
% 1.54/1.08  thf(exu_type,type,
% 1.54/1.08      exu: ( $i > $o ) > $o ).
% 1.54/1.08  
% 1.54/1.08  thf(exu,definition,
% 1.54/1.08      ( exu
% 1.54/1.08      = ( ^ [Xphi: $i > $o] :
% 1.54/1.08          ? [Xx: $i] :
% 1.54/1.08            ( ( Xphi @ Xx )
% 1.54/1.08            & ! [Xy: $i] :
% 1.54/1.08                ( ( Xphi @ Xy )
% 1.54/1.08               => ( Xx = Xy ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setextAx_type,type,
% 1.54/1.08      setextAx: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setextAx,definition,
% 1.54/1.08      ( setextAx
% 1.54/1.08      = ( ! [A: $i,B: $i] :
% 1.54/1.08            ( ! [Xx: $i] :
% 1.54/1.08                ( ( in @ Xx @ A )
% 1.54/1.08              <=> ( in @ Xx @ B ) )
% 1.54/1.08           => ( A = B ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(emptyset_type,type,
% 1.54/1.08      emptyset: $i ).
% 1.54/1.08  
% 1.54/1.08  thf(emptysetAx_type,type,
% 1.54/1.08      emptysetAx: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(emptysetAx,definition,
% 1.54/1.08      ( emptysetAx
% 1.54/1.08      = ( ! [Xx: $i] :
% 1.54/1.08            ~ ( in @ Xx @ emptyset ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setadjoin_type,type,
% 1.54/1.08      setadjoin: $i > $i > $i ).
% 1.54/1.08  
% 1.54/1.08  thf(setadjoinAx_type,type,
% 1.54/1.08      setadjoinAx: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setadjoinAx,definition,
% 1.54/1.08      ( setadjoinAx
% 1.54/1.08      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 1.54/1.08            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 1.54/1.08          <=> ( ( Xy = Xx )
% 1.54/1.08              | ( in @ Xy @ A ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(powerset_type,type,
% 1.54/1.08      powerset: $i > $i ).
% 1.54/1.08  
% 1.54/1.08  thf(powersetAx_type,type,
% 1.54/1.08      powersetAx: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(powersetAx,definition,
% 1.54/1.08      ( powersetAx
% 1.54/1.08      = ( ! [A: $i,B: $i] :
% 1.54/1.08            ( ( in @ B @ ( powerset @ A ) )
% 1.54/1.08          <=> ! [Xx: $i] :
% 1.54/1.08                ( ( in @ Xx @ B )
% 1.54/1.08               => ( in @ Xx @ A ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setunion_type,type,
% 1.54/1.08      setunion: $i > $i ).
% 1.54/1.08  
% 1.54/1.08  thf(setunionAx_type,type,
% 1.54/1.08      setunionAx: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setunionAx,definition,
% 1.54/1.08      ( setunionAx
% 1.54/1.08      = ( ! [A: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ ( setunion @ A ) )
% 1.54/1.08          <=> ? [B: $i] :
% 1.54/1.08                ( ( in @ Xx @ B )
% 1.54/1.08                & ( in @ B @ A ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(omega_type,type,
% 1.54/1.08      omega: $i ).
% 1.54/1.08  
% 1.54/1.08  thf(omega0Ax_type,type,
% 1.54/1.08      omega0Ax: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(omega0Ax,definition,
% 1.54/1.08      ( omega0Ax
% 1.54/1.08      = ( in @ emptyset @ omega ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(omegaSAx_type,type,
% 1.54/1.08      omegaSAx: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(omegaSAx,definition,
% 1.54/1.08      ( omegaSAx
% 1.54/1.08      = ( ! [Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ omega )
% 1.54/1.08           => ( in @ ( setadjoin @ Xx @ Xx ) @ omega ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(omegaIndAx_type,type,
% 1.54/1.08      omegaIndAx: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(omegaIndAx,definition,
% 1.54/1.08      ( omegaIndAx
% 1.54/1.08      = ( ! [A: $i] :
% 1.54/1.08            ( ( ( in @ emptyset @ A )
% 1.54/1.08              & ! [Xx: $i] :
% 1.54/1.08                  ( ( ( in @ Xx @ omega )
% 1.54/1.08                    & ( in @ Xx @ A ) )
% 1.54/1.08                 => ( in @ ( setadjoin @ Xx @ Xx ) @ A ) ) )
% 1.54/1.08           => ! [Xx: $i] :
% 1.54/1.08                ( ( in @ Xx @ omega )
% 1.54/1.08               => ( in @ Xx @ A ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(replAx_type,type,
% 1.54/1.08      replAx: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(replAx,definition,
% 1.54/1.08      ( replAx
% 1.54/1.08      = ( ! [Xphi: $i > $i > $o,A: $i] :
% 1.54/1.08            ( ! [Xx: $i] :
% 1.54/1.08                ( ( in @ Xx @ A )
% 1.54/1.08               => ( exu
% 1.54/1.08                  @ ^ [Xy: $i] : ( Xphi @ Xx @ Xy ) ) )
% 1.54/1.08           => ? [B: $i] :
% 1.54/1.08              ! [Xx: $i] :
% 1.54/1.08                ( ( in @ Xx @ B )
% 1.54/1.08              <=> ? [Xy: $i] :
% 1.54/1.08                    ( ( in @ Xy @ A )
% 1.54/1.08                    & ( Xphi @ Xy @ Xx ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(foundationAx_type,type,
% 1.54/1.08      foundationAx: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(foundationAx,definition,
% 1.54/1.08      ( foundationAx
% 1.54/1.08      = ( ! [A: $i] :
% 1.54/1.08            ( ? [Xx: $i] : ( in @ Xx @ A )
% 1.54/1.08           => ? [B: $i] :
% 1.54/1.08                ( ( in @ B @ A )
% 1.54/1.08                & ~ ? [Xx: $i] :
% 1.54/1.08                      ( ( in @ Xx @ B )
% 1.54/1.08                      & ( in @ Xx @ A ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(wellorderingAx_type,type,
% 1.54/1.08      wellorderingAx: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(wellorderingAx,definition,
% 1.54/1.08      ( wellorderingAx
% 1.54/1.08      = ( ! [A: $i] :
% 1.54/1.08          ? [B: $i] :
% 1.54/1.08            ( ! [C: $i] :
% 1.54/1.08                ( ( in @ C @ B )
% 1.54/1.08               => ! [Xx: $i] :
% 1.54/1.08                    ( ( in @ Xx @ C )
% 1.54/1.08                   => ( in @ Xx @ A ) ) )
% 1.54/1.08            & ! [Xx: $i,Xy: $i] :
% 1.54/1.08                ( ( ( in @ Xx @ A )
% 1.54/1.08                  & ( in @ Xy @ A ) )
% 1.54/1.08               => ( ! [C: $i] :
% 1.54/1.08                      ( ( in @ C @ B )
% 1.54/1.08                     => ( ( in @ Xx @ C )
% 1.54/1.08                      <=> ( in @ Xy @ C ) ) )
% 1.54/1.08                 => ( Xx = Xy ) ) )
% 1.54/1.08            & ! [C: $i,D: $i] :
% 1.54/1.08                ( ( ( in @ C @ B )
% 1.54/1.08                  & ( in @ D @ B ) )
% 1.54/1.08               => ( ! [Xx: $i] :
% 1.54/1.08                      ( ( in @ Xx @ C )
% 1.54/1.08                     => ( in @ Xx @ D ) )
% 1.54/1.08                  | ! [Xx: $i] :
% 1.54/1.08                      ( ( in @ Xx @ D )
% 1.54/1.08                     => ( in @ Xx @ C ) ) ) )
% 1.54/1.08            & ! [C: $i] :
% 1.54/1.08                ( ( ! [Xx: $i] :
% 1.54/1.08                      ( ( in @ Xx @ C )
% 1.54/1.08                     => ( in @ Xx @ A ) )
% 1.54/1.08                  & ? [Xx: $i] : ( in @ Xx @ C ) )
% 1.54/1.08               => ? [D: $i,Xx: $i] :
% 1.54/1.08                    ( ( in @ D @ B )
% 1.54/1.08                    & ( in @ Xx @ C )
% 1.54/1.08                    & ~ ? [Xy: $i] :
% 1.54/1.08                          ( ( in @ Xy @ D )
% 1.54/1.08                          & ( in @ Xy @ C ) )
% 1.54/1.08                    & ! [E: $i] :
% 1.54/1.08                        ( ( in @ E @ B )
% 1.54/1.08                       => ( ! [Xy: $i] :
% 1.54/1.08                              ( ( in @ Xy @ E )
% 1.54/1.08                             => ( in @ Xy @ D ) )
% 1.54/1.08                          | ( in @ Xx @ E ) ) ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(descr_type,type,
% 1.54/1.08      descr: ( $i > $o ) > $i ).
% 1.54/1.08  
% 1.54/1.08  thf(descrp_type,type,
% 1.54/1.08      descrp: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(descrp,definition,
% 1.54/1.08      ( descrp
% 1.54/1.08      = ( ! [Xphi: $i > $o] :
% 1.54/1.08            ( ( exu
% 1.54/1.08              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 1.54/1.08           => ( Xphi
% 1.54/1.08              @ ( descr
% 1.54/1.08                @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(dsetconstr_type,type,
% 1.54/1.08      dsetconstr: $i > ( $i > $o ) > $i ).
% 1.54/1.08  
% 1.54/1.08  thf(dsetconstrI_type,type,
% 1.54/1.08      dsetconstrI: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(dsetconstrI,definition,
% 1.54/1.08      ( dsetconstrI
% 1.54/1.08      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ A )
% 1.54/1.08           => ( ( Xphi @ Xx )
% 1.54/1.08             => ( in @ Xx
% 1.54/1.08                @ ( dsetconstr @ A
% 1.54/1.08                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(dsetconstrEL_type,type,
% 1.54/1.08      dsetconstrEL: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(dsetconstrEL,definition,
% 1.54/1.08      ( dsetconstrEL
% 1.54/1.08      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx
% 1.54/1.08              @ ( dsetconstr @ A
% 1.54/1.08                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 1.54/1.08           => ( in @ Xx @ A ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(dsetconstrER_type,type,
% 1.54/1.08      dsetconstrER: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(dsetconstrER,definition,
% 1.54/1.08      ( dsetconstrER
% 1.54/1.08      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx
% 1.54/1.08              @ ( dsetconstr @ A
% 1.54/1.08                @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 1.54/1.08           => ( Xphi @ Xx ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(exuE1_type,type,
% 1.54/1.08      exuE1: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(exuE1,definition,
% 1.54/1.08      ( exuE1
% 1.54/1.08      = ( ! [Xphi: $i > $o] :
% 1.54/1.08            ( ( exu
% 1.54/1.08              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 1.54/1.08           => ? [Xx: $i] :
% 1.54/1.08                ( ( Xphi @ Xx )
% 1.54/1.08                & ! [Xy: $i] :
% 1.54/1.08                    ( ( Xphi @ Xy )
% 1.54/1.08                   => ( Xx = Xy ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(prop2set_type,type,
% 1.54/1.08      prop2set: $o > $i ).
% 1.54/1.08  
% 1.54/1.08  thf(prop2setE_type,type,
% 1.54/1.08      prop2setE: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(prop2setE,definition,
% 1.54/1.08      ( prop2setE
% 1.54/1.08      = ( ! [Xphi: $o,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ ( prop2set @ Xphi ) )
% 1.54/1.08           => Xphi ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(emptysetE_type,type,
% 1.54/1.08      emptysetE: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(emptysetE,definition,
% 1.54/1.08      ( emptysetE
% 1.54/1.08      = ( ! [Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ emptyset )
% 1.54/1.08           => ! [Xphi: $o] : Xphi ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(emptysetimpfalse_type,type,
% 1.54/1.08      emptysetimpfalse: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(emptysetimpfalse,definition,
% 1.54/1.08      ( emptysetimpfalse
% 1.54/1.08      = ( ! [Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ emptyset )
% 1.54/1.08           => $false ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(notinemptyset_type,type,
% 1.54/1.08      notinemptyset: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(notinemptyset,definition,
% 1.54/1.08      ( notinemptyset
% 1.54/1.08      = ( ! [Xx: $i] :
% 1.54/1.08            ~ ( in @ Xx @ emptyset ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(exuE3e_type,type,
% 1.54/1.08      exuE3e: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(exuE3e,definition,
% 1.54/1.08      ( exuE3e
% 1.54/1.08      = ( ! [Xphi: $i > $o] :
% 1.54/1.08            ( ( exu
% 1.54/1.08              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 1.54/1.08           => ? [Xx: $i] : ( Xphi @ Xx ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setext_type,type,
% 1.54/1.08      setext: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setext,definition,
% 1.54/1.08      ( setext
% 1.54/1.08      = ( ! [A: $i,B: $i] :
% 1.54/1.08            ( ! [Xx: $i] :
% 1.54/1.08                ( ( in @ Xx @ A )
% 1.54/1.08               => ( in @ Xx @ B ) )
% 1.54/1.08           => ( ! [Xx: $i] :
% 1.54/1.08                  ( ( in @ Xx @ B )
% 1.54/1.08                 => ( in @ Xx @ A ) )
% 1.54/1.08             => ( A = B ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(emptyI_type,type,
% 1.54/1.08      emptyI: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(emptyI,definition,
% 1.54/1.08      ( emptyI
% 1.54/1.08      = ( ! [A: $i] :
% 1.54/1.08            ( ! [Xx: $i] :
% 1.54/1.08                ~ ( in @ Xx @ A )
% 1.54/1.08           => ( A = emptyset ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(noeltsimpempty_type,type,
% 1.54/1.08      noeltsimpempty: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(noeltsimpempty,definition,
% 1.54/1.08      ( noeltsimpempty
% 1.54/1.08      = ( ! [A: $i] :
% 1.54/1.08            ( ! [Xx: $i] :
% 1.54/1.08                ~ ( in @ Xx @ A )
% 1.54/1.08           => ( A = emptyset ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setbeta_type,type,
% 1.54/1.08      setbeta: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setbeta,definition,
% 1.54/1.08      ( setbeta
% 1.54/1.08      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ A )
% 1.54/1.08           => ( ( in @ Xx
% 1.54/1.08                @ ( dsetconstr @ A
% 1.54/1.08                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) )
% 1.54/1.08            <=> ( Xphi @ Xx ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(nonempty_type,type,
% 1.54/1.08      nonempty: $i > $o ).
% 1.54/1.08  
% 1.54/1.08  thf(nonempty,definition,
% 1.54/1.08      ( nonempty
% 1.54/1.08      = ( ^ [Xx: $i] : ( Xx != emptyset ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(nonemptyE1_type,type,
% 1.54/1.08      nonemptyE1: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(nonemptyE1,definition,
% 1.54/1.08      ( nonemptyE1
% 1.54/1.08      = ( ! [A: $i] :
% 1.54/1.08            ( ( nonempty @ A )
% 1.54/1.08           => ? [Xx: $i] : ( in @ Xx @ A ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(nonemptyI_type,type,
% 1.54/1.08      nonemptyI: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(nonemptyI,definition,
% 1.54/1.08      ( nonemptyI
% 1.54/1.08      = ( ! [A: $i,Xphi: $i > $o,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ A )
% 1.54/1.08           => ( ( Xphi @ Xx )
% 1.54/1.08             => ( nonempty
% 1.54/1.08                @ ( dsetconstr @ A
% 1.54/1.08                  @ ^ [Xy: $i] : ( Xphi @ Xy ) ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(nonemptyI1_type,type,
% 1.54/1.08      nonemptyI1: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(nonemptyI1,definition,
% 1.54/1.08      ( nonemptyI1
% 1.54/1.08      = ( ! [A: $i] :
% 1.54/1.08            ( ? [Xx: $i] : ( in @ Xx @ A )
% 1.54/1.08           => ( nonempty @ A ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setadjoinIL_type,type,
% 1.54/1.08      setadjoinIL: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setadjoinIL,definition,
% 1.54/1.08      ( setadjoinIL
% 1.54/1.08      = ( ! [Xx: $i,Xy: $i] : ( in @ Xx @ ( setadjoin @ Xx @ Xy ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(emptyinunitempty_type,type,
% 1.54/1.08      emptyinunitempty: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(emptyinunitempty,definition,
% 1.54/1.08      ( emptyinunitempty
% 1.54/1.08      = ( in @ emptyset @ ( setadjoin @ emptyset @ emptyset ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setadjoinIR_type,type,
% 1.54/1.08      setadjoinIR: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setadjoinIR,definition,
% 1.54/1.08      ( setadjoinIR
% 1.54/1.08      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 1.54/1.08            ( ( in @ Xy @ A )
% 1.54/1.08           => ( in @ Xy @ ( setadjoin @ Xx @ A ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setadjoinE_type,type,
% 1.54/1.08      setadjoinE: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setadjoinE,definition,
% 1.54/1.08      ( setadjoinE
% 1.54/1.08      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 1.54/1.08            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 1.54/1.08           => ! [Xphi: $o] :
% 1.54/1.08                ( ( ( Xy = Xx )
% 1.54/1.08                 => Xphi )
% 1.54/1.08               => ( ( ( in @ Xy @ A )
% 1.54/1.08                   => Xphi )
% 1.54/1.08                 => Xphi ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setadjoinOr_type,type,
% 1.54/1.08      setadjoinOr: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setadjoinOr,definition,
% 1.54/1.08      ( setadjoinOr
% 1.54/1.08      = ( ! [Xx: $i,A: $i,Xy: $i] :
% 1.54/1.08            ( ( in @ Xy @ ( setadjoin @ Xx @ A ) )
% 1.54/1.08           => ( ( Xy = Xx )
% 1.54/1.08              | ( in @ Xy @ A ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setoftrueEq_type,type,
% 1.54/1.08      setoftrueEq: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setoftrueEq,definition,
% 1.54/1.08      ( setoftrueEq
% 1.54/1.08      = ( ! [A: $i] :
% 1.54/1.08            ( ( dsetconstr @ A
% 1.54/1.08              @ ^ [Xx: $i] : $true )
% 1.54/1.08            = A ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(powersetI_type,type,
% 1.54/1.08      powersetI: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(powersetI,definition,
% 1.54/1.08      ( powersetI
% 1.54/1.08      = ( ! [A: $i,B: $i] :
% 1.54/1.08            ( ! [Xx: $i] :
% 1.54/1.08                ( ( in @ Xx @ B )
% 1.54/1.08               => ( in @ Xx @ A ) )
% 1.54/1.08           => ( in @ B @ ( powerset @ A ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(emptyinPowerset_type,type,
% 1.54/1.08      emptyinPowerset: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(emptyinPowerset,definition,
% 1.54/1.08      ( emptyinPowerset
% 1.54/1.08      = ( ! [A: $i] : ( in @ emptyset @ ( powerset @ A ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(emptyInPowerset_type,type,
% 1.54/1.08      emptyInPowerset: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(emptyInPowerset,definition,
% 1.54/1.08      ( emptyInPowerset
% 1.54/1.08      = ( ! [A: $i] : ( in @ emptyset @ ( powerset @ A ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(powersetE_type,type,
% 1.54/1.08      powersetE: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(powersetE,definition,
% 1.54/1.08      ( powersetE
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ B @ ( powerset @ A ) )
% 1.54/1.08           => ( ( in @ Xx @ B )
% 1.54/1.08             => ( in @ Xx @ A ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setunionI_type,type,
% 1.54/1.08      setunionI: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setunionI,definition,
% 1.54/1.08      ( setunionI
% 1.54/1.08      = ( ! [A: $i,Xx: $i,B: $i] :
% 1.54/1.08            ( ( in @ Xx @ B )
% 1.54/1.08           => ( ( in @ B @ A )
% 1.54/1.08             => ( in @ Xx @ ( setunion @ A ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setunionE_type,type,
% 1.54/1.08      setunionE: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setunionE,definition,
% 1.54/1.08      ( setunionE
% 1.54/1.08      = ( ! [A: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ ( setunion @ A ) )
% 1.54/1.08           => ! [Xphi: $o] :
% 1.54/1.08                ( ! [B: $i] :
% 1.54/1.08                    ( ( in @ Xx @ B )
% 1.54/1.08                   => ( ( in @ B @ A )
% 1.54/1.08                     => Xphi ) )
% 1.54/1.08               => Xphi ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(subPowSU_type,type,
% 1.54/1.08      subPowSU: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(subPowSU,definition,
% 1.54/1.08      ( subPowSU
% 1.54/1.08      = ( ! [A: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ A )
% 1.54/1.08           => ( in @ Xx @ ( powerset @ ( setunion @ A ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(exuE2_type,type,
% 1.54/1.08      exuE2: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(exuE2,definition,
% 1.54/1.08      ( exuE2
% 1.54/1.08      = ( ! [Xphi: $i > $o] :
% 1.54/1.08            ( ( exu
% 1.54/1.08              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 1.54/1.08           => ? [Xx: $i] :
% 1.54/1.08              ! [Xy: $i] :
% 1.54/1.08                ( ( Xphi @ Xy )
% 1.54/1.08              <=> ( Xy = Xx ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(nonemptyImpWitness_type,type,
% 1.54/1.08      nonemptyImpWitness: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(nonemptyImpWitness,definition,
% 1.54/1.08      ( nonemptyImpWitness
% 1.54/1.08      = ( ! [A: $i] :
% 1.54/1.08            ( ( nonempty @ A )
% 1.54/1.08           => ? [Xx: $i] :
% 1.54/1.08                ( ( in @ Xx @ A )
% 1.54/1.08                & $true ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(uniqinunit_type,type,
% 1.54/1.08      uniqinunit: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(uniqinunit,definition,
% 1.54/1.08      ( uniqinunit
% 1.54/1.08      = ( ! [Xx: $i,Xy: $i] :
% 1.54/1.08            ( ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) )
% 1.54/1.08           => ( Xx = Xy ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(notinsingleton_type,type,
% 1.54/1.08      notinsingleton: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(notinsingleton,definition,
% 1.54/1.08      ( notinsingleton
% 1.54/1.08      = ( ! [Xx: $i,Xy: $i] :
% 1.54/1.08            ( ( Xx != Xy )
% 1.54/1.08           => ~ ( in @ Xy @ ( setadjoin @ Xx @ emptyset ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(eqinunit_type,type,
% 1.54/1.08      eqinunit: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(eqinunit,definition,
% 1.54/1.08      ( eqinunit
% 1.54/1.08      = ( ! [Xx: $i,Xy: $i] :
% 1.54/1.08            ( ( Xx = Xy )
% 1.54/1.08           => ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(singletonsswitch_type,type,
% 1.54/1.08      singletonsswitch: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(singletonsswitch,definition,
% 1.54/1.08      ( singletonsswitch
% 1.54/1.08      = ( ! [Xx: $i,Xy: $i] :
% 1.54/1.08            ( ( in @ Xx @ ( setadjoin @ Xy @ emptyset ) )
% 1.54/1.08           => ( in @ Xy @ ( setadjoin @ Xx @ emptyset ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(upairsetE_type,type,
% 1.54/1.08      upairsetE: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(upairsetE,definition,
% 1.54/1.08      ( upairsetE
% 1.54/1.08      = ( ! [Xx: $i,Xy: $i,Xz: $i] :
% 1.54/1.08            ( ( in @ Xz @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) )
% 1.54/1.08           => ( ( Xz = Xx )
% 1.54/1.08              | ( Xz = Xy ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(upairsetIL_type,type,
% 1.54/1.08      upairsetIL: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(upairsetIL,definition,
% 1.54/1.08      ( upairsetIL
% 1.54/1.08      = ( ! [Xx: $i,Xy: $i] : ( in @ Xx @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(upairsetIR_type,type,
% 1.54/1.08      upairsetIR: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(upairsetIR,definition,
% 1.54/1.08      ( upairsetIR
% 1.54/1.08      = ( ! [Xx: $i,Xy: $i] : ( in @ Xy @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(emptyE1_type,type,
% 1.54/1.08      emptyE1: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(emptyE1,definition,
% 1.54/1.08      ( emptyE1
% 1.54/1.08      = ( ! [A: $i,Xphi: $i > $o] :
% 1.54/1.08            ( ? [Xx: $i] :
% 1.54/1.08                ( ( in @ Xx @ A )
% 1.54/1.08                & ( Xphi @ Xx ) )
% 1.54/1.08           => ( ( ( dsetconstr @ A
% 1.54/1.08                  @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 1.54/1.08                = emptyset )
% 1.54/1.08             => $false ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(vacuousDall_type,type,
% 1.54/1.08      vacuousDall: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(vacuousDall,definition,
% 1.54/1.08      ( vacuousDall
% 1.54/1.08      = ( ! [Xphi: $i > $o,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ emptyset )
% 1.54/1.08           => ( Xphi @ Xx ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(quantDeMorgan1_type,type,
% 1.54/1.08      quantDeMorgan1: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(quantDeMorgan1,definition,
% 1.54/1.08      ( quantDeMorgan1
% 1.54/1.08      = ( ! [A: $i,Xphi: $i > $o] :
% 1.54/1.08            ( ~ ! [Xx: $i] :
% 1.54/1.08                  ( ( in @ Xx @ A )
% 1.54/1.08                 => ( Xphi @ Xx ) )
% 1.54/1.08           => ? [Xx: $i] :
% 1.54/1.08                ( ( in @ Xx @ A )
% 1.54/1.08                & ~ ( Xphi @ Xx ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(quantDeMorgan2_type,type,
% 1.54/1.08      quantDeMorgan2: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(quantDeMorgan2,definition,
% 1.54/1.08      ( quantDeMorgan2
% 1.54/1.08      = ( ! [A: $i,Xphi: $i > $o] :
% 1.54/1.08            ( ! [Xx: $i] :
% 1.54/1.08                ( ( in @ Xx @ A )
% 1.54/1.08               => ~ ( Xphi @ Xx ) )
% 1.54/1.08           => ~ ? [Xx: $i] :
% 1.54/1.08                  ( ( in @ Xx @ A )
% 1.54/1.08                  & ( Xphi @ Xx ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(quantDeMorgan3_type,type,
% 1.54/1.08      quantDeMorgan3: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(quantDeMorgan3,definition,
% 1.54/1.08      ( quantDeMorgan3
% 1.54/1.08      = ( ! [A: $i,Xphi: $i > $o] :
% 1.54/1.08            ( ~ ? [Xx: $i] :
% 1.54/1.08                  ( ( in @ Xx @ A )
% 1.54/1.08                  & ( Xphi @ Xx ) )
% 1.54/1.08           => ! [Xx: $i] :
% 1.54/1.08                ( ( in @ Xx @ A )
% 1.54/1.08               => ~ ( Xphi @ Xx ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(quantDeMorgan4_type,type,
% 1.54/1.08      quantDeMorgan4: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(quantDeMorgan4,definition,
% 1.54/1.08      ( quantDeMorgan4
% 1.54/1.08      = ( ! [A: $i,Xphi: $i > $o] :
% 1.54/1.08            ( ? [Xx: $i] :
% 1.54/1.08                ( ( in @ Xx @ A )
% 1.54/1.08                & ~ ( Xphi @ Xx ) )
% 1.54/1.08           => ~ ! [Xx: $i] :
% 1.54/1.08                  ( ( in @ Xx @ A )
% 1.54/1.08                 => ( Xphi @ Xx ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(prop2setI_type,type,
% 1.54/1.08      prop2setI: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(prop2setI,definition,
% 1.54/1.08      ( prop2setI
% 1.54/1.08      = ( ! [Xphi: $o] :
% 1.54/1.08            ( Xphi
% 1.54/1.08           => ( in @ emptyset @ ( prop2set @ Xphi ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(set2prop_type,type,
% 1.54/1.08      set2prop: $i > $o ).
% 1.54/1.08  
% 1.54/1.08  thf(prop2set2propI_type,type,
% 1.54/1.08      prop2set2propI: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(prop2set2propI,definition,
% 1.54/1.08      ( prop2set2propI
% 1.54/1.08      = ( ! [Xphi: $o] :
% 1.54/1.08            ( Xphi
% 1.54/1.08           => ( set2prop @ ( prop2set @ Xphi ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(notdexE_type,type,
% 1.54/1.08      notdexE: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(notdexE,definition,
% 1.54/1.08      ( notdexE
% 1.54/1.08      = ( ! [A: $i,Xphi: $i > $o] :
% 1.54/1.08            ( ~ ? [Xx: $i] :
% 1.54/1.08                  ( ( in @ Xx @ A )
% 1.54/1.08                  & ( Xphi @ Xx ) )
% 1.54/1.08           => ! [Xx: $i] :
% 1.54/1.08                ( ( in @ Xx @ A )
% 1.54/1.08               => ~ ( Xphi @ Xx ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(notdallE_type,type,
% 1.54/1.08      notdallE: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(notdallE,definition,
% 1.54/1.08      ( notdallE
% 1.54/1.08      = ( ! [A: $i,Xphi: $i > $o] :
% 1.54/1.08            ( ~ ! [Xx: $i] :
% 1.54/1.08                  ( ( in @ Xx @ A )
% 1.54/1.08                 => ( Xphi @ Xx ) )
% 1.54/1.08           => ? [Xx: $i] :
% 1.54/1.08                ( ( in @ Xx @ A )
% 1.54/1.08                & ~ ( Xphi @ Xx ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(exuI1_type,type,
% 1.54/1.08      exuI1: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(exuI1,definition,
% 1.54/1.08      ( exuI1
% 1.54/1.08      = ( ! [Xphi: $i > $o] :
% 1.54/1.08            ( ? [Xx: $i] :
% 1.54/1.08                ( ( Xphi @ Xx )
% 1.54/1.08                & ! [Xy: $i] :
% 1.54/1.08                    ( ( Xphi @ Xy )
% 1.54/1.08                   => ( Xx = Xy ) ) )
% 1.54/1.08           => ( exu
% 1.54/1.08              @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(exuI3_type,type,
% 1.54/1.08      exuI3: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(exuI3,definition,
% 1.54/1.08      ( exuI3
% 1.54/1.08      = ( ! [Xphi: $i > $o] :
% 1.54/1.08            ( ? [Xx: $i] : ( Xphi @ Xx )
% 1.54/1.08           => ( ! [Xx: $i,Xy: $i] :
% 1.54/1.08                  ( ( Xphi @ Xx )
% 1.54/1.08                 => ( ( Xphi @ Xy )
% 1.54/1.08                   => ( Xx = Xy ) ) )
% 1.54/1.08             => ( exu
% 1.54/1.08                @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(exuI2_type,type,
% 1.54/1.08      exuI2: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(exuI2,definition,
% 1.54/1.08      ( exuI2
% 1.54/1.08      = ( ! [Xphi: $i > $o] :
% 1.54/1.08            ( ? [Xx: $i] :
% 1.54/1.08              ! [Xy: $i] :
% 1.54/1.08                ( ( Xphi @ Xy )
% 1.54/1.08              <=> ( Xy = Xx ) )
% 1.54/1.08           => ( exu
% 1.54/1.08              @ ^ [Xx: $i] : ( Xphi @ Xx ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(inCongP_type,type,
% 1.54/1.08      inCongP: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(inCongP,definition,
% 1.54/1.08      ( inCongP
% 1.54/1.08      = ( ! [A: $i,B: $i] :
% 1.54/1.08            ( ( A = B )
% 1.54/1.08           => ! [Xx: $i,Xy: $i] :
% 1.54/1.08                ( ( Xx = Xy )
% 1.54/1.08               => ( ( in @ Xx @ A )
% 1.54/1.08                 => ( in @ Xy @ B ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(in__Cong_type,type,
% 1.54/1.08      in__Cong: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(in__Cong,definition,
% 1.54/1.08      ( in__Cong
% 1.54/1.08      = ( ! [A: $i,B: $i] :
% 1.54/1.08            ( ( A = B )
% 1.54/1.08           => ! [Xx: $i,Xy: $i] :
% 1.54/1.08                ( ( Xx = Xy )
% 1.54/1.08               => ( ( in @ Xx @ A )
% 1.54/1.08                <=> ( in @ Xy @ B ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(exuE3u_type,type,
% 1.54/1.08      exuE3u: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(exuE3u,definition,
% 1.54/1.08      ( exuE3u
% 1.54/1.08      = ( ! [Xphi: $i > $o] :
% 1.54/1.08            ( ( exu
% 1.54/1.08              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 1.54/1.08           => ! [Xx: $i,Xy: $i] :
% 1.54/1.08                ( ( Xphi @ Xx )
% 1.54/1.08               => ( ( Xphi @ Xy )
% 1.54/1.08                 => ( Xx = Xy ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(exu__Cong_type,type,
% 1.54/1.08      exu__Cong: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(exu__Cong,definition,
% 1.54/1.08      ( exu__Cong
% 1.54/1.08      = ( ! [Xphi: $i > $o,Xpsi: $i > $o] :
% 1.54/1.08            ( ! [Xx: $i,Xy: $i] :
% 1.54/1.08                ( ( Xx = Xy )
% 1.54/1.08               => ( ( Xphi @ Xx )
% 1.54/1.08                <=> ( Xpsi @ Xy ) ) )
% 1.54/1.08           => ( ( exu
% 1.54/1.08                @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 1.54/1.08            <=> ( exu
% 1.54/1.08                @ ^ [Xx: $i] : ( Xpsi @ Xx ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(emptyset__Cong_type,type,
% 1.54/1.08      emptyset__Cong: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(emptyset__Cong,definition,
% 1.54/1.08      ( emptyset__Cong
% 1.54/1.08      = ( emptyset = emptyset ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setadjoin__Cong_type,type,
% 1.54/1.08      setadjoin__Cong: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setadjoin__Cong,definition,
% 1.54/1.08      ( setadjoin__Cong
% 1.54/1.08      = ( ! [Xx: $i,Xy: $i] :
% 1.54/1.08            ( ( Xx = Xy )
% 1.54/1.08           => ! [Xz: $i,Xu: $i] :
% 1.54/1.08                ( ( Xz = Xu )
% 1.54/1.08               => ( ( setadjoin @ Xx @ Xz )
% 1.54/1.08                  = ( setadjoin @ Xy @ Xu ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(powerset__Cong_type,type,
% 1.54/1.08      powerset__Cong: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(powerset__Cong,definition,
% 1.54/1.08      ( powerset__Cong
% 1.54/1.08      = ( ! [A: $i,B: $i] :
% 1.54/1.08            ( ( A = B )
% 1.54/1.08           => ( ( powerset @ A )
% 1.54/1.08              = ( powerset @ B ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setunion__Cong_type,type,
% 1.54/1.08      setunion__Cong: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setunion__Cong,definition,
% 1.54/1.08      ( setunion__Cong
% 1.54/1.08      = ( ! [A: $i,B: $i] :
% 1.54/1.08            ( ( A = B )
% 1.54/1.08           => ( ( setunion @ A )
% 1.54/1.08              = ( setunion @ B ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(omega__Cong_type,type,
% 1.54/1.08      omega__Cong: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(omega__Cong,definition,
% 1.54/1.08      ( omega__Cong
% 1.54/1.08      = ( omega = omega ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(exuEu_type,type,
% 1.54/1.08      exuEu: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(exuEu,definition,
% 1.54/1.08      ( exuEu
% 1.54/1.08      = ( ! [Xphi: $i > $o] :
% 1.54/1.08            ( ( exu
% 1.54/1.08              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 1.54/1.08           => ! [Xx: $i,Xy: $i] :
% 1.54/1.08                ( ( Xphi @ Xx )
% 1.54/1.08               => ( ( Xphi @ Xy )
% 1.54/1.08                 => ( Xx = Xy ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(descr__Cong_type,type,
% 1.54/1.08      descr__Cong: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(descr__Cong,definition,
% 1.54/1.08      ( descr__Cong
% 1.54/1.08      = ( ! [Xphi: $i > $o,Xpsi: $i > $o] :
% 1.54/1.08            ( ! [Xx: $i,Xy: $i] :
% 1.54/1.08                ( ( Xx = Xy )
% 1.54/1.08               => ( ( Xphi @ Xx )
% 1.54/1.08                <=> ( Xpsi @ Xy ) ) )
% 1.54/1.08           => ( ( exu
% 1.54/1.08                @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 1.54/1.08             => ( ( exu
% 1.54/1.08                  @ ^ [Xx: $i] : ( Xpsi @ Xx ) )
% 1.54/1.08               => ( ( descr
% 1.54/1.08                    @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 1.54/1.08                  = ( descr
% 1.54/1.08                    @ ^ [Xx: $i] : ( Xpsi @ Xx ) ) ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(dsetconstr__Cong_type,type,
% 1.54/1.08      dsetconstr__Cong: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(dsetconstr__Cong,definition,
% 1.54/1.08      ( dsetconstr__Cong
% 1.54/1.08      = ( ! [A: $i,B: $i] :
% 1.54/1.08            ( ( A = B )
% 1.54/1.08           => ! [Xphi: $i > $o,Xpsi: $i > $o] :
% 1.54/1.08                ( ! [Xx: $i] :
% 1.54/1.08                    ( ( in @ Xx @ A )
% 1.54/1.08                   => ! [Xy: $i] :
% 1.54/1.08                        ( ( in @ Xy @ B )
% 1.54/1.08                       => ( ( Xx = Xy )
% 1.54/1.08                         => ( ( Xphi @ Xx )
% 1.54/1.08                          <=> ( Xpsi @ Xy ) ) ) ) )
% 1.54/1.08               => ( ( dsetconstr @ A
% 1.54/1.08                    @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 1.54/1.08                  = ( dsetconstr @ B
% 1.54/1.08                    @ ^ [Xx: $i] : ( Xpsi @ Xx ) ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(subset_type,type,
% 1.54/1.08      subset: $i > $i > $o ).
% 1.54/1.08  
% 1.54/1.08  thf(disjoint_type,type,
% 1.54/1.08      disjoint: $i > $i > $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setsmeet_type,type,
% 1.54/1.08      setsmeet: $i > $i > $o ).
% 1.54/1.08  
% 1.54/1.08  thf(subsetI1_type,type,
% 1.54/1.08      subsetI1: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(subsetI1,definition,
% 1.54/1.08      ( subsetI1
% 1.54/1.08      = ( ! [A: $i,B: $i] :
% 1.54/1.08            ( ! [Xx: $i] :
% 1.54/1.08                ( ( in @ Xx @ A )
% 1.54/1.08               => ( in @ Xx @ B ) )
% 1.54/1.08           => ( subset @ A @ B ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(eqimpsubset2_type,type,
% 1.54/1.08      eqimpsubset2: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(eqimpsubset2,definition,
% 1.54/1.08      ( eqimpsubset2
% 1.54/1.08      = ( ! [A: $i,B: $i] :
% 1.54/1.08            ( ( A = B )
% 1.54/1.08           => ( subset @ B @ A ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(eqimpsubset1_type,type,
% 1.54/1.08      eqimpsubset1: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(eqimpsubset1,definition,
% 1.54/1.08      ( eqimpsubset1
% 1.54/1.08      = ( ! [A: $i,B: $i] :
% 1.54/1.08            ( ( A = B )
% 1.54/1.08           => ( subset @ A @ B ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(subsetI2_type,type,
% 1.54/1.08      subsetI2: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(subsetI2,definition,
% 1.54/1.08      ( subsetI2
% 1.54/1.08      = ( ! [A: $i,B: $i] :
% 1.54/1.08            ( ! [Xx: $i] :
% 1.54/1.08                ( ( in @ Xx @ A )
% 1.54/1.08               => ( in @ Xx @ B ) )
% 1.54/1.08           => ( subset @ A @ B ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(emptysetsubset_type,type,
% 1.54/1.08      emptysetsubset: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(emptysetsubset,definition,
% 1.54/1.08      ( emptysetsubset
% 1.54/1.08      = ( ! [A: $i] : ( subset @ emptyset @ A ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(subsetE_type,type,
% 1.54/1.08      subsetE: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(subsetE,definition,
% 1.54/1.08      ( subsetE
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ( subset @ A @ B )
% 1.54/1.08           => ( ( in @ Xx @ A )
% 1.54/1.08             => ( in @ Xx @ B ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(subsetE2_type,type,
% 1.54/1.08      subsetE2: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(subsetE2,definition,
% 1.54/1.08      ( subsetE2
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ( subset @ A @ B )
% 1.54/1.08           => ( ~ ( in @ Xx @ B )
% 1.54/1.08             => ~ ( in @ Xx @ A ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(notsubsetI_type,type,
% 1.54/1.08      notsubsetI: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(notsubsetI,definition,
% 1.54/1.08      ( notsubsetI
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ A )
% 1.54/1.08           => ( ~ ( in @ Xx @ B )
% 1.54/1.08             => ~ ( subset @ A @ B ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(notequalI1_type,type,
% 1.54/1.08      notequalI1: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(notequalI1,definition,
% 1.54/1.08      ( notequalI1
% 1.54/1.08      = ( ! [A: $i,B: $i] :
% 1.54/1.08            ( ~ ( subset @ A @ B )
% 1.54/1.08           => ( A != B ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(notequalI2_type,type,
% 1.54/1.08      notequalI2: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(notequalI2,definition,
% 1.54/1.08      ( notequalI2
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ A )
% 1.54/1.08           => ( ~ ( in @ Xx @ B )
% 1.54/1.08             => ( A != B ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(subsetRefl_type,type,
% 1.54/1.08      subsetRefl: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(subsetRefl,definition,
% 1.54/1.08      ( subsetRefl
% 1.54/1.08      = ( ! [A: $i] : ( subset @ A @ A ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(subsetTrans_type,type,
% 1.54/1.08      subsetTrans: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(subsetTrans,definition,
% 1.54/1.08      ( subsetTrans
% 1.54/1.08      = ( ! [A: $i,B: $i,C: $i] :
% 1.54/1.08            ( ( subset @ A @ B )
% 1.54/1.08           => ( ( subset @ B @ C )
% 1.54/1.08             => ( subset @ A @ C ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setadjoinSub_type,type,
% 1.54/1.08      setadjoinSub: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setadjoinSub,definition,
% 1.54/1.08      ( setadjoinSub
% 1.54/1.08      = ( ! [Xx: $i,A: $i] : ( subset @ A @ ( setadjoin @ Xx @ A ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setadjoinSub2_type,type,
% 1.54/1.08      setadjoinSub2: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setadjoinSub2,definition,
% 1.54/1.08      ( setadjoinSub2
% 1.54/1.08      = ( ! [A: $i,Xx: $i,B: $i] :
% 1.54/1.08            ( ( subset @ A @ B )
% 1.54/1.08           => ( subset @ A @ ( setadjoin @ Xx @ B ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(subset2powerset_type,type,
% 1.54/1.08      subset2powerset: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(subset2powerset,definition,
% 1.54/1.08      ( subset2powerset
% 1.54/1.08      = ( ! [A: $i,B: $i] :
% 1.54/1.08            ( ( subset @ A @ B )
% 1.54/1.08           => ( in @ A @ ( powerset @ B ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setextsub_type,type,
% 1.54/1.08      setextsub: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setextsub,definition,
% 1.54/1.08      ( setextsub
% 1.54/1.08      = ( ! [A: $i,B: $i] :
% 1.54/1.08            ( ( subset @ A @ B )
% 1.54/1.08           => ( ( subset @ B @ A )
% 1.54/1.08             => ( A = B ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(subsetemptysetimpeq_type,type,
% 1.54/1.08      subsetemptysetimpeq: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(subsetemptysetimpeq,definition,
% 1.54/1.08      ( subsetemptysetimpeq
% 1.54/1.08      = ( ! [A: $i] :
% 1.54/1.08            ( ( subset @ A @ emptyset )
% 1.54/1.08           => ( A = emptyset ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(powersetI1_type,type,
% 1.54/1.08      powersetI1: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(powersetI1,definition,
% 1.54/1.08      ( powersetI1
% 1.54/1.08      = ( ! [A: $i,B: $i] :
% 1.54/1.08            ( ( subset @ B @ A )
% 1.54/1.08           => ( in @ B @ ( powerset @ A ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(powersetE1_type,type,
% 1.54/1.08      powersetE1: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(powersetE1,definition,
% 1.54/1.08      ( powersetE1
% 1.54/1.08      = ( ! [A: $i,B: $i] :
% 1.54/1.08            ( ( in @ B @ ( powerset @ A ) )
% 1.54/1.08           => ( subset @ B @ A ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(inPowerset_type,type,
% 1.54/1.08      inPowerset: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(inPowerset,definition,
% 1.54/1.08      ( inPowerset
% 1.54/1.08      = ( ! [A: $i] : ( in @ A @ ( powerset @ A ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(powersetsubset_type,type,
% 1.54/1.08      powersetsubset: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(powersetsubset,definition,
% 1.54/1.08      ( powersetsubset
% 1.54/1.08      = ( ! [A: $i,B: $i] :
% 1.54/1.08            ( ( subset @ A @ B )
% 1.54/1.08           => ( subset @ ( powerset @ A ) @ ( powerset @ B ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(sepInPowerset_type,type,
% 1.54/1.08      sepInPowerset: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(sepInPowerset,definition,
% 1.54/1.08      ( sepInPowerset
% 1.54/1.08      = ( ! [A: $i,Xphi: $i > $o] :
% 1.54/1.08            ( in
% 1.54/1.08            @ ( dsetconstr @ A
% 1.54/1.08              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 1.54/1.08            @ ( powerset @ A ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(sepSubset_type,type,
% 1.54/1.08      sepSubset: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(sepSubset,definition,
% 1.54/1.08      ( sepSubset
% 1.54/1.08      = ( ! [A: $i,Xphi: $i > $o] :
% 1.54/1.08            ( subset
% 1.54/1.08            @ ( dsetconstr @ A
% 1.54/1.08              @ ^ [Xx: $i] : ( Xphi @ Xx ) )
% 1.54/1.08            @ A ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(binunion_type,type,
% 1.54/1.08      binunion: $i > $i > $i ).
% 1.54/1.08  
% 1.54/1.08  thf(binunionIL_type,type,
% 1.54/1.08      binunionIL: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(binunionIL,definition,
% 1.54/1.08      ( binunionIL
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ A )
% 1.54/1.08           => ( in @ Xx @ ( binunion @ A @ B ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(upairset2IR_type,type,
% 1.54/1.08      upairset2IR: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(upairset2IR,definition,
% 1.54/1.08      ( upairset2IR
% 1.54/1.08      = ( ! [Xx: $i,Xy: $i] : ( in @ Xy @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(binunionIR_type,type,
% 1.54/1.08      binunionIR: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(binunionIR,definition,
% 1.54/1.08      ( binunionIR
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ B )
% 1.54/1.08           => ( in @ Xx @ ( binunion @ A @ B ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(binunionEcases_type,type,
% 1.54/1.08      binunionEcases: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(binunionEcases,definition,
% 1.54/1.08      ( binunionEcases
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i,Xphi: $o] :
% 1.54/1.08            ( ( in @ Xx @ ( binunion @ A @ B ) )
% 1.54/1.08           => ( ( ( in @ Xx @ A )
% 1.54/1.08               => Xphi )
% 1.54/1.08             => ( ( ( in @ Xx @ B )
% 1.54/1.08                 => Xphi )
% 1.54/1.08               => Xphi ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(binunionE_type,type,
% 1.54/1.08      binunionE: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(binunionE,definition,
% 1.54/1.08      ( binunionE
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ ( binunion @ A @ B ) )
% 1.54/1.08           => ( ( in @ Xx @ A )
% 1.54/1.08              | ( in @ Xx @ B ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(binunionLsub_type,type,
% 1.54/1.08      binunionLsub: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(binunionLsub,definition,
% 1.54/1.08      ( binunionLsub
% 1.54/1.08      = ( ! [A: $i,B: $i] : ( subset @ A @ ( binunion @ A @ B ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(binunionRsub_type,type,
% 1.54/1.08      binunionRsub: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(binunionRsub,definition,
% 1.54/1.08      ( binunionRsub
% 1.54/1.08      = ( ! [A: $i,B: $i] : ( subset @ B @ ( binunion @ A @ B ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(binintersect_type,type,
% 1.54/1.08      binintersect: $i > $i > $i ).
% 1.54/1.08  
% 1.54/1.08  thf(binintersectI_type,type,
% 1.54/1.08      binintersectI: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(binintersectI,definition,
% 1.54/1.08      ( binintersectI
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ A )
% 1.54/1.08           => ( ( in @ Xx @ B )
% 1.54/1.08             => ( in @ Xx @ ( binintersect @ A @ B ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(binintersectSubset5_type,type,
% 1.54/1.08      binintersectSubset5: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(binintersectSubset5,definition,
% 1.54/1.08      ( binintersectSubset5
% 1.54/1.08      = ( ! [A: $i,B: $i,C: $i] :
% 1.54/1.08            ( ( subset @ C @ A )
% 1.54/1.08           => ( ( subset @ C @ B )
% 1.54/1.08             => ( subset @ C @ ( binintersect @ A @ B ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(binintersectEL_type,type,
% 1.54/1.08      binintersectEL: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(binintersectEL,definition,
% 1.54/1.08      ( binintersectEL
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ ( binintersect @ A @ B ) )
% 1.54/1.08           => ( in @ Xx @ A ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(binintersectLsub_type,type,
% 1.54/1.08      binintersectLsub: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(binintersectLsub,definition,
% 1.54/1.08      ( binintersectLsub
% 1.54/1.08      = ( ! [A: $i,B: $i] : ( subset @ ( binintersect @ A @ B ) @ A ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(binintersectSubset2_type,type,
% 1.54/1.08      binintersectSubset2: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(binintersectSubset2,definition,
% 1.54/1.08      ( binintersectSubset2
% 1.54/1.08      = ( ! [A: $i,B: $i] :
% 1.54/1.08            ( ( subset @ A @ B )
% 1.54/1.08           => ( ( binintersect @ A @ B )
% 1.54/1.08              = A ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(binintersectSubset3_type,type,
% 1.54/1.08      binintersectSubset3: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(binintersectSubset3,definition,
% 1.54/1.08      ( binintersectSubset3
% 1.54/1.08      = ( ! [A: $i,B: $i] :
% 1.54/1.08            ( ( ( binintersect @ A @ B )
% 1.54/1.08              = B )
% 1.54/1.08           => ( subset @ B @ A ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(binintersectER_type,type,
% 1.54/1.08      binintersectER: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(binintersectER,definition,
% 1.54/1.08      ( binintersectER
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ ( binintersect @ A @ B ) )
% 1.54/1.08           => ( in @ Xx @ B ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(disjointsetsI1_type,type,
% 1.54/1.08      disjointsetsI1: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(disjointsetsI1,definition,
% 1.54/1.08      ( disjointsetsI1
% 1.54/1.08      = ( ! [A: $i,B: $i] :
% 1.54/1.08            ( ~ ? [Xx: $i] :
% 1.54/1.08                  ( ( in @ Xx @ A )
% 1.54/1.08                  & ( in @ Xx @ B ) )
% 1.54/1.08           => ( ( binintersect @ A @ B )
% 1.54/1.08              = emptyset ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(binintersectRsub_type,type,
% 1.54/1.08      binintersectRsub: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(binintersectRsub,definition,
% 1.54/1.08      ( binintersectRsub
% 1.54/1.08      = ( ! [A: $i,B: $i] : ( subset @ ( binintersect @ A @ B ) @ B ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(binintersectSubset4_type,type,
% 1.54/1.08      binintersectSubset4: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(binintersectSubset4,definition,
% 1.54/1.08      ( binintersectSubset4
% 1.54/1.08      = ( ! [A: $i,B: $i] :
% 1.54/1.08            ( ( subset @ B @ A )
% 1.54/1.08           => ( ( binintersect @ A @ B )
% 1.54/1.08              = B ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(binintersectSubset1_type,type,
% 1.54/1.08      binintersectSubset1: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(binintersectSubset1,definition,
% 1.54/1.08      ( binintersectSubset1
% 1.54/1.08      = ( ! [A: $i,B: $i] :
% 1.54/1.08            ( ( ( binintersect @ A @ B )
% 1.54/1.08              = A )
% 1.54/1.08           => ( subset @ A @ B ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(bs114d_type,type,
% 1.54/1.08      bs114d: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(bs114d,definition,
% 1.54/1.08      ( bs114d
% 1.54/1.08      = ( ! [A: $i,B: $i,C: $i] :
% 1.54/1.08            ( ( binintersect @ A @ ( binunion @ B @ C ) )
% 1.54/1.08            = ( binunion @ ( binintersect @ A @ B ) @ ( binintersect @ A @ C ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(regular_type,type,
% 1.54/1.08      regular: $i > $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setminus_type,type,
% 1.54/1.08      setminus: $i > $i > $i ).
% 1.54/1.08  
% 1.54/1.08  thf(setminusI_type,type,
% 1.54/1.08      setminusI: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setminusI,definition,
% 1.54/1.08      ( setminusI
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ A )
% 1.54/1.08           => ( ~ ( in @ Xx @ B )
% 1.54/1.08             => ( in @ Xx @ ( setminus @ A @ B ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setminusEL_type,type,
% 1.54/1.08      setminusEL: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setminusEL,definition,
% 1.54/1.08      ( setminusEL
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ ( setminus @ A @ B ) )
% 1.54/1.08           => ( in @ Xx @ A ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setminusER_type,type,
% 1.54/1.08      setminusER: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setminusER,definition,
% 1.54/1.08      ( setminusER
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ ( setminus @ A @ B ) )
% 1.54/1.08           => ~ ( in @ Xx @ B ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setminusSubset2_type,type,
% 1.54/1.08      setminusSubset2: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setminusSubset2,definition,
% 1.54/1.08      ( setminusSubset2
% 1.54/1.08      = ( ! [A: $i,B: $i] :
% 1.54/1.08            ( ( subset @ A @ B )
% 1.54/1.08           => ( ( setminus @ A @ B )
% 1.54/1.08              = emptyset ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setminusERneg_type,type,
% 1.54/1.08      setminusERneg: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setminusERneg,definition,
% 1.54/1.08      ( setminusERneg
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ~ ( in @ Xx @ ( setminus @ A @ B ) )
% 1.54/1.08           => ( ( in @ Xx @ A )
% 1.54/1.08             => ( in @ Xx @ B ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setminusELneg_type,type,
% 1.54/1.08      setminusELneg: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setminusELneg,definition,
% 1.54/1.08      ( setminusELneg
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ~ ( in @ Xx @ ( setminus @ A @ B ) )
% 1.54/1.08           => ( ~ ( in @ Xx @ B )
% 1.54/1.08             => ~ ( in @ Xx @ A ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setminusILneg_type,type,
% 1.54/1.08      setminusILneg: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setminusILneg,definition,
% 1.54/1.08      ( setminusILneg
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ~ ( in @ Xx @ A )
% 1.54/1.08           => ~ ( in @ Xx @ ( setminus @ A @ B ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setminusIRneg_type,type,
% 1.54/1.08      setminusIRneg: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setminusIRneg,definition,
% 1.54/1.08      ( setminusIRneg
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ B )
% 1.54/1.08           => ~ ( in @ Xx @ ( setminus @ A @ B ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setminusLsub_type,type,
% 1.54/1.08      setminusLsub: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setminusLsub,definition,
% 1.54/1.08      ( setminusLsub
% 1.54/1.08      = ( ! [A: $i,B: $i] : ( subset @ ( setminus @ A @ B ) @ A ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setminusSubset1_type,type,
% 1.54/1.08      setminusSubset1: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setminusSubset1,definition,
% 1.54/1.08      ( setminusSubset1
% 1.54/1.08      = ( ! [A: $i,B: $i] :
% 1.54/1.08            ( ( ( setminus @ A @ B )
% 1.54/1.08              = emptyset )
% 1.54/1.08           => ( subset @ A @ B ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(symdiff_type,type,
% 1.54/1.08      symdiff: $i > $i > $i ).
% 1.54/1.08  
% 1.54/1.08  thf(symdiffE_type,type,
% 1.54/1.08      symdiffE: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(symdiffE,definition,
% 1.54/1.08      ( symdiffE
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ ( symdiff @ A @ B ) )
% 1.54/1.08           => ! [Xphi: $o] :
% 1.54/1.08                ( ( ( in @ Xx @ A )
% 1.54/1.08                 => ( ~ ( in @ Xx @ B )
% 1.54/1.08                   => Xphi ) )
% 1.54/1.08               => ( ( ~ ( in @ Xx @ A )
% 1.54/1.08                   => ( ( in @ Xx @ B )
% 1.54/1.08                     => Xphi ) )
% 1.54/1.08                 => Xphi ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(symdiffI1_type,type,
% 1.54/1.08      symdiffI1: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(symdiffI1,definition,
% 1.54/1.08      ( symdiffI1
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ A )
% 1.54/1.08           => ( ~ ( in @ Xx @ B )
% 1.54/1.08             => ( in @ Xx @ ( symdiff @ A @ B ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(symdiffI2_type,type,
% 1.54/1.08      symdiffI2: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(symdiffI2,definition,
% 1.54/1.08      ( symdiffI2
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ~ ( in @ Xx @ A )
% 1.54/1.08           => ( ( in @ Xx @ B )
% 1.54/1.08             => ( in @ Xx @ ( symdiff @ A @ B ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(symdiffIneg1_type,type,
% 1.54/1.08      symdiffIneg1: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(symdiffIneg1,definition,
% 1.54/1.08      ( symdiffIneg1
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ A )
% 1.54/1.08           => ( ( in @ Xx @ B )
% 1.54/1.08             => ~ ( in @ Xx @ ( symdiff @ A @ B ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(symdiffIneg2_type,type,
% 1.54/1.08      symdiffIneg2: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(symdiffIneg2,definition,
% 1.54/1.08      ( symdiffIneg2
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ~ ( in @ Xx @ A )
% 1.54/1.08           => ( ~ ( in @ Xx @ B )
% 1.54/1.08             => ~ ( in @ Xx @ ( symdiff @ A @ B ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(iskpair_type,type,
% 1.54/1.08      iskpair: $i > $o ).
% 1.54/1.08  
% 1.54/1.08  thf(iskpair,definition,
% 1.54/1.08      ( iskpair
% 1.54/1.08      = ( ^ [A: $i] :
% 1.54/1.08          ? [Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ ( setunion @ A ) )
% 1.54/1.08            & ? [Xy: $i] :
% 1.54/1.08                ( ( in @ Xy @ ( setunion @ A ) )
% 1.54/1.08                & ( A
% 1.54/1.08                  = ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(secondinupair_type,type,
% 1.54/1.08      secondinupair: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(secondinupair,definition,
% 1.54/1.08      ( secondinupair
% 1.54/1.08      = ( ! [Xx: $i,Xy: $i] : ( in @ Xy @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setukpairIL_type,type,
% 1.54/1.08      setukpairIL: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setukpairIL,definition,
% 1.54/1.08      ( setukpairIL
% 1.54/1.08      = ( ! [Xx: $i,Xy: $i] : ( in @ Xx @ ( setunion @ ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setukpairIR_type,type,
% 1.54/1.08      setukpairIR: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(setukpairIR,definition,
% 1.54/1.08      ( setukpairIR
% 1.54/1.08      = ( ! [Xx: $i,Xy: $i] : ( in @ Xy @ ( setunion @ ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(kpairiskpair_type,type,
% 1.54/1.08      kpairiskpair: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(kpairiskpair,definition,
% 1.54/1.08      ( kpairiskpair
% 1.54/1.08      = ( ! [Xx: $i,Xy: $i] : ( iskpair @ ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(kpair_type,type,
% 1.54/1.08      kpair: $i > $i > $i ).
% 1.54/1.08  
% 1.54/1.08  thf(kpair,definition,
% 1.54/1.08      ( kpair
% 1.54/1.08      = ( ^ [Xx: $i,Xy: $i] : ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(kpairp_type,type,
% 1.54/1.08      kpairp: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(kpairp,definition,
% 1.54/1.08      ( kpairp
% 1.54/1.08      = ( ! [Xx: $i,Xy: $i] : ( iskpair @ ( kpair @ Xx @ Xy ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(cartprod_type,type,
% 1.54/1.08      cartprod: $i > $i > $i ).
% 1.54/1.08  
% 1.54/1.08  thf(singletonsubset_type,type,
% 1.54/1.08      singletonsubset: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(singletonsubset,definition,
% 1.54/1.08      ( singletonsubset
% 1.54/1.08      = ( ! [A: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ A )
% 1.54/1.08           => ( subset @ ( setadjoin @ Xx @ emptyset ) @ A ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(singletoninpowerset_type,type,
% 1.54/1.08      singletoninpowerset: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(singletoninpowerset,definition,
% 1.54/1.08      ( singletoninpowerset
% 1.54/1.08      = ( ! [A: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ A )
% 1.54/1.08           => ( in @ ( setadjoin @ Xx @ emptyset ) @ ( powerset @ A ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(singletoninpowunion_type,type,
% 1.54/1.08      singletoninpowunion: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(singletoninpowunion,definition,
% 1.54/1.08      ( singletoninpowunion
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ A )
% 1.54/1.08           => ( in @ ( setadjoin @ Xx @ emptyset ) @ ( powerset @ ( binunion @ A @ B ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(upairset2E_type,type,
% 1.54/1.08      upairset2E: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(upairset2E,definition,
% 1.54/1.08      ( upairset2E
% 1.54/1.08      = ( ! [Xx: $i,Xy: $i,Xz: $i] :
% 1.54/1.08            ( ( in @ Xz @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) )
% 1.54/1.08           => ( ( Xz = Xx )
% 1.54/1.08              | ( Xz = Xy ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(upairsubunion_type,type,
% 1.54/1.08      upairsubunion: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(upairsubunion,definition,
% 1.54/1.08      ( upairsubunion
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ A )
% 1.54/1.08           => ! [Xy: $i] :
% 1.54/1.08                ( ( in @ Xy @ B )
% 1.54/1.08               => ( subset @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ ( binunion @ A @ B ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(upairinpowunion_type,type,
% 1.54/1.08      upairinpowunion: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(upairinpowunion,definition,
% 1.54/1.08      ( upairinpowunion
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ A )
% 1.54/1.08           => ! [Xy: $i] :
% 1.54/1.08                ( ( in @ Xy @ B )
% 1.54/1.08               => ( in @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ ( powerset @ ( binunion @ A @ B ) ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(ubforcartprodlem1_type,type,
% 1.54/1.08      ubforcartprodlem1: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(ubforcartprodlem1,definition,
% 1.54/1.08      ( ubforcartprodlem1
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ A )
% 1.54/1.08           => ! [Xy: $i] :
% 1.54/1.08                ( ( in @ Xy @ B )
% 1.54/1.08               => ( subset @ ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) @ ( powerset @ ( binunion @ A @ B ) ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(ubforcartprodlem2_type,type,
% 1.54/1.08      ubforcartprodlem2: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(ubforcartprodlem2,definition,
% 1.54/1.08      ( ubforcartprodlem2
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ A )
% 1.54/1.08           => ! [Xy: $i] :
% 1.54/1.08                ( ( in @ Xy @ B )
% 1.54/1.08               => ( in @ ( setadjoin @ ( setadjoin @ Xx @ emptyset ) @ ( setadjoin @ ( setadjoin @ Xx @ ( setadjoin @ Xy @ emptyset ) ) @ emptyset ) ) @ ( powerset @ ( powerset @ ( binunion @ A @ B ) ) ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(ubforcartprodlem3_type,type,
% 1.54/1.08      ubforcartprodlem3: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(ubforcartprodlem3,definition,
% 1.54/1.08      ( ubforcartprodlem3
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ A )
% 1.54/1.08           => ! [Xy: $i] :
% 1.54/1.08                ( ( in @ Xy @ B )
% 1.54/1.08               => ( in @ ( kpair @ Xx @ Xy ) @ ( powerset @ ( powerset @ ( binunion @ A @ B ) ) ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(cartprodpairin_type,type,
% 1.54/1.08      cartprodpairin: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(cartprodpairin,definition,
% 1.54/1.08      ( cartprodpairin
% 1.54/1.08      = ( ! [A: $i,B: $i,Xx: $i] :
% 1.54/1.08            ( ( in @ Xx @ A )
% 1.54/1.08           => ! [Xy: $i] :
% 1.54/1.08                ( ( in @ Xy @ B )
% 1.54/1.08               => ( in @ ( kpair @ Xx @ Xy ) @ ( cartprod @ A @ B ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(cartprodmempair1_type,type,
% 1.54/1.08      cartprodmempair1: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(cartprodmempair1,definition,
% 1.54/1.08      ( cartprodmempair1
% 1.54/1.08      = ( ! [A: $i,B: $i,Xu: $i] :
% 1.54/1.08            ( ( in @ Xu @ ( cartprod @ A @ B ) )
% 1.54/1.08           => ? [Xx: $i] :
% 1.54/1.08                ( ( in @ Xx @ A )
% 1.54/1.08                & ? [Xy: $i] :
% 1.54/1.08                    ( ( in @ Xy @ B )
% 1.54/1.08                    & ( Xu
% 1.54/1.08                      = ( kpair @ Xx @ Xy ) ) ) ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(cartprodmempair_type,type,
% 1.54/1.08      cartprodmempair: $o ).
% 1.54/1.08  
% 1.54/1.08  thf(cartprodmempair,definition,
% 1.54/1.08      ( cartprodmempair
% 1.54/1.08      = ( ! [A: $i,B: $i,Xu: $i] :
% 1.54/1.08            ( ( in @ Xu @ ( cartprod @ A @ B ) )
% 1.54/1.08           => ( iskpair @ Xu ) ) ) ) ).
% 1.54/1.08  
% 1.54/1.08  thf(setunionE2,conjecture,
% 1.54/1.08      ( setextAx
% 1.54/1.08     => ( emptysetAx
% 1.54/1.08       => ( setadjoinAx
% 1.54/1.08         => ( powersetAx
% 1.54/1.08           => ( setunionAx
% 1.54/1.08             => ( omega0Ax
% 1.54/1.08               => ( omegaSAx
% 1.54/1.08                 => ( omegaIndAx
% 1.54/1.08                   => ( replAx
% 1.54/1.08                     => ( foundationAx
% 1.54/1.08                       => ( wellorderingAx
% 1.54/1.08                         => ( descrp
% 1.54/1.08                           => ( dsetconstrI
% 1.54/1.08                             => ( dsetconstrEL
% 1.54/1.08                               => ( dsetconstrER
% 1.54/1.08                                 => ( exuE1
% 1.54/1.08                                   => ( prop2setE
% 1.54/1.08                                     => ( emptysetE
% 1.54/1.08                                       => ( emptysetimpfalse
% 1.54/1.08                                         => ( notinemptyset
% 1.54/1.08                                           => ( exuE3e
% 1.54/1.08                                             => ( setext
% 1.54/1.08                                               => ( emptyI
% 1.54/1.08                                                 => ( noeltsimpempty
% 1.54/1.08                                                   => ( setbeta
% 1.54/1.08                                                     => ( nonemptyE1
% 1.54/1.08                                                       => ( nonemptyI
% 1.54/1.08                                                         => ( nonemptyI1
% 1.54/1.08                                                           => ( setadjoinIL
% 1.54/1.08                                                             => ( emptyinunitempty
% 1.54/1.08                                                               => ( setadjoinIR
% 1.54/1.08                                                                 => ( setadjoinE
% 1.54/1.08                                                                   => ( setadjoinOr
% 1.54/1.08                                                                     => ( setoftrueEq
% 1.54/1.08                                                                       => ( powersetI
% 1.54/1.08                                                                         => ( emptyinPowerset
% 1.54/1.08                                                                           => ( emptyInPowerset
% 1.54/1.08                                                                             => ( powersetE
% 1.54/1.08                                                                               => ( setunionI
% 1.54/1.08                                                                                 => ( setunionE
% 1.54/1.08                                                                                   => ( subPowSU
% 1.54/1.08                                                                                     => ( exuE2
% 1.54/1.08                                                                                       => ( nonemptyImpWitness
% 1.54/1.08                                                                                         => ( uniqinunit
% 1.54/1.08                                                                                           => ( notinsingleton
% 1.54/1.08                                                                                             => ( eqinunit
% 1.54/1.08                                                                                               => ( singletonsswitch
% 1.54/1.08                                                                                                 => ( upairsetE
% 1.54/1.08                                                                                                   => ( upairsetIL
% 1.54/1.08                                                                                                     => ( upairsetIR
% 1.54/1.08                                                                                                       => ( emptyE1
% 1.54/1.08                                                                                                         => ( vacuousDall
% 1.54/1.08                                                                                                           => ( quantDeMorgan1
% 1.54/1.08                                                                                                             => ( quantDeMorgan2
% 1.54/1.08                                                                                                               => ( quantDeMorgan3
% 1.54/1.08                                                                                                                 => ( quantDeMorgan4
% 1.54/1.08                                                                                                                   => ( prop2setI
% 1.54/1.08                                                                                                                     => ( prop2set2propI
% 1.54/1.08                                                                                                                       => ( notdexE
% 1.54/1.08                                                                                                                         => ( notdallE
% 1.54/1.08                                                                                                                           => ( exuI1
% 1.54/1.08                                                                                                                             => ( exuI3
% 1.54/1.08                                                                                                                               => ( exuI2
% 1.54/1.08                                                                                                                                 => ( inCongP
% 1.54/1.08                                                                                                                                   => ( in__Cong
% 1.54/1.08                                                                                                                                     => ( exuE3u
% 1.54/1.08                                                                                                                                       => ( exu__Cong
% 1.54/1.08                                                                                                                                         => ( emptyset__Cong
% 1.54/1.08                                                                                                                                           => ( setadjoin__Cong
% 1.54/1.08                                                                                                                                             => ( powerset__Cong
% 1.54/1.08                                                                                                                                               => ( setunion__Cong
% 1.54/1.08                                                                                                                                                 => ( omega__Cong
% 1.54/1.08                                                                                                                                                   => ( exuEu
% 1.54/1.08                                                                                                                                                     => ( descr__Cong
% 1.54/1.08                                                                                                                                                       => ( dsetconstr__Cong
% 1.54/1.08                                                                                                                                                         => ( subsetI1
% 1.54/1.08                                                                                                                                                           => ( eqimpsubset2
% 1.54/1.08                                                                                                                                                             => ( eqimpsubset1
% 1.54/1.08                                                                                                                                                               => ( subsetI2
% 1.54/1.08                                                                                                                                                                 => ( emptysetsubset
% 1.54/1.08                                                                                                                                                                   => ( subsetE
% 1.54/1.08                                                                                                                                                                     => ( subsetE2
% 1.54/1.08                                                                                                                                                                       => ( notsubsetI
% 1.54/1.08                                                                                                                                                                         => ( notequalI1
% 1.54/1.08                                                                                                                                                                           => ( notequalI2
% 1.54/1.08                                                                                                                                                                             => ( subsetRefl
% 1.54/1.08                                                                                                                                                                               => ( subsetTrans
% 1.54/1.08                                                                                                                                                                                 => ( setadjoinSub
% 1.54/1.08                                                                                                                                                                                   => ( setadjoinSub2
% 1.54/1.08                                                                                                                                                                                     => ( subset2powerset
% 1.54/1.08                                                                                                                                                                                       => ( setextsub
% 1.54/1.08                                                                                                                                                                                         => ( subsetemptysetimpeq
% 1.54/1.08                                                                                                                                                                                           => ( powersetI1
% 1.54/1.08                                                                                                                                                                                             => ( powersetE1
% 1.54/1.08                                                                                                                                                                                               => ( inPowerset
% 1.54/1.08                                                                                                                                                                                                 => ( powersetsubset
% 1.54/1.08                                                                                                                                                                                                   => ( sepInPowerset
% 1.54/1.08                                                                                                                                                                                                     => ( sepSubset
% 1.54/1.08                                                                                                                                                                                                       => ( binunionIL
% 1.54/1.08                                                                                                                                                                                                         => ( upairset2IR
% 1.54/1.08                                                                                                                                                                                                           => ( binunionIR
% 1.54/1.08                                                                                                                                                                                                             => ( binunionEcases
% 1.54/1.08                                                                                                                                                                                                               => ( binunionE
% 1.54/1.08                                                                                                                                                                                                                 => ( binunionLsub
% 1.54/1.08                                                                                                                                                                                                                   => ( binunionRsub
% 1.54/1.08                                                                                                                                                                                                                     => ( binintersectI
% 1.54/1.08                                                                                                                                                                                                                       => ( binintersectSubset5
% 1.54/1.08                                                                                                                                                                                                                         => ( binintersectEL
% 1.54/1.08                                                                                                                                                                                                                           => ( binintersectLsub
% 1.54/1.08                                                                                                                                                                                                                             => ( binintersectSubset2
% 1.54/1.08                                                                                                                                                                                                                               => ( binintersectSubset3
% 1.54/1.08                                                                                                                                                                                                                                 => ( binintersectER
% 1.54/1.08                                                                                                                                                                                                                                   => ( disjointsetsI1
% 1.54/1.08                                                                                                                                                                                                                                     => ( binintersectRsub
% 1.54/1.08                                                                                                                                                                                                                                       => ( binintersectSubset4
% 1.54/1.08                                                                                                                                                                                                                                         => ( binintersectSubset1
% 1.54/1.08                                                                                                                                                                                                                                           => ( bs114d
% 1.54/1.08                                                                                                                                                                                                                                             => ( setminusI
% 1.54/1.08                                                                                                                                                                                                                                               => ( setminusEL
% 1.54/1.08                                                                                                                                                                                                                                                 => ( setminusER
% 1.54/1.08                                                                                                                                                                                                                                                   => ( setminusSubset2
% 1.54/1.08                                                                                                                                                                                                                                                     => ( setminusERneg
% 1.54/1.08                                                                                                                                                                                                                                                       => ( setminusELneg
% 1.54/1.08                                                                                                                                                                                                                                                         => ( setminusILneg
% 1.54/1.08                                                                                                                                                                                                                                                           => ( setminusIRneg
% 1.54/1.08                                                                                                                                                                                                                                                             => ( setminusLsub
% 1.54/1.08                                                                                                                                                                                                                                                               => ( setminusSubset1
% 1.54/1.08                                                                                                                                                                                                                                                                 => ( symdiffE
% 1.54/1.08                                                                                                                                                                                                                                                                   => ( symdiffI1
% 1.54/1.08                                                                                                                                                                                                                                                                     => ( symdiffI2
% 1.54/1.08                                                                                                                                                                                                                                                                       => ( symdiffIneg1
% 1.54/1.08                                                                                                                                                                                                                                                                         => ( symdiffIneg2
% 1.54/1.08                                                                                                                                                                                                                                                                           => ( secondinupair
% 1.54/1.08                                                                                                                                                                                                                                                                             => ( setukpairIL
% 1.54/1.08                                                                                                                                                                                                                                                                               => ( setukpairIR
% 1.54/1.08                                                                                                                                                                                                                                                                                 => ( kpairiskpair
% 1.54/1.08                                                                                                                                                                                                                                                                                   => ( kpairp
% 1.54/1.08                                                                                                                                                                                                                                                                                     => ( singletonsubset
% 1.54/1.08                                                                                                                                                                                                                                                                                       => ( singletoninpowerset
% 1.54/1.08                                                                                                                                                                                                                                                                                         => ( singletoninpowunion
% 1.54/1.08                                                                                                                                                                                                                                                                                           => ( upairset2E
% 1.54/1.08                                                                                                                                                                                                                                                                                             => ( upairsubunion
% 1.54/1.08                                                                                                                                                                                                                                                                                               => ( upairinpowunion
% 1.54/1.08                                                                                                                                                                                                                                                                                                 => ( ubforcartprodlem1
% 1.54/1.08                                                                                                                                                                                                                                                                                                   => ( ubforcartprodlem2
% 1.54/1.08                                                                                                                                                                                                                                                                                                     => ( ubforcartprodlem3
% 1.54/1.08                                                                                                                                                                                                                                                                                                       => ( cartprodpairin
% 1.54/1.08                                                                                                                                                                                                                                                                                                         => ( cartprodmempair1
% 1.54/1.08                                                                                                                                                                                                                                                                                                           => ( cartprodmempair
% 1.54/1.08                                                                                                                                                                                                                                                                                                             => ! [A: $i,Xx: $i] :
% 1.54/1.08                                                                                                                                                                                                                                                                                                                  ( ( in @ Xx @ ( setunion @ A ) )
% 1.54/1.08                                                                                                                                                                                                                                                                                                                 => ? [X: $i] :
% 1.54/1.08                                                                                                                                                                                                                                                                                                                      ( ( in @ X @ A )
% 1.54/1.08                                                                                                                                                                                                                                                                                                                      & ( in @ Xx @ X ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ).
% 1.54/1.08  ------------------------
% 1.54/1.10  % (24900)lrs+1002_1:8_bd=off:fd=off:hud=10:tnu=1:i=183:si=on:rtra=on_0 on DTF2THF_24674 for (2999ds/183Mi)
% 1.54/1.10  % (24901)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_24674 for (2999ds/4Mi)
% 1.54/1.10  % (24902)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_24674 for (2999ds/27Mi)
% 1.54/1.10  % (24903)lrs+10_1:1_au=on:inj=on:i=2:si=on:rtra=on_0 on DTF2THF_24674 for (2999ds/2Mi)
% 1.54/1.10  % (24905)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_24674 for (2999ds/275Mi)
% 1.54/1.10  % (24906)lrs+1004_1:128_cond=on:e2e=on:sp=weighted_frequency:i=18:si=on:rtra=on_0 on DTF2THF_24674 for (2999ds/18Mi)
% 1.54/1.10  % (24904)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_24674 for (2999ds/2Mi)
% 1.54/1.10  % (24903)Instruction limit reached!
% 1.54/1.10  % (24903)------------------------------
% 1.54/1.10  % (24903)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.54/1.10  % (24903)Termination reason: Unknown
% 1.54/1.10  % (24903)Termination phase: shuffling
% 1.54/1.10  
% 1.54/1.10  % (24903)Memory used [KB]: 1279
% 1.54/1.10  % (24903)Time elapsed: 0.002 s
% 1.54/1.10  % (24903)Instructions burned: 3 (million)
% 1.54/1.10  % (24903)------------------------------
% 1.54/1.10  % (24903)------------------------------
% 1.54/1.10  % (24904)Instruction limit reached!
% 1.54/1.10  % (24904)------------------------------
% 1.54/1.10  % (24904)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.54/1.10  % (24904)Termination reason: Unknown
% 1.54/1.10  % (24904)Termination phase: shuffling
% 1.54/1.10  
% 1.54/1.10  % (24904)Memory used [KB]: 1279
% 1.54/1.10  % (24904)Time elapsed: 0.002 s
% 1.54/1.10  % (24904)Instructions burned: 3 (million)
% 1.54/1.10  % (24904)------------------------------
% 1.54/1.10  % (24904)------------------------------
% 1.54/1.10  % (24901)Instruction limit reached!
% 1.54/1.10  % (24901)------------------------------
% 1.54/1.10  % (24901)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.54/1.10  % (24901)Termination reason: Unknown
% 1.54/1.10  % (24901)Termination phase: shuffling
% 1.54/1.10  
% 1.54/1.10  % (24901)Memory used [KB]: 1279
% 1.54/1.10  % (24901)Time elapsed: 0.003 s
% 1.54/1.10  % (24901)Instructions burned: 6 (million)
% 1.54/1.10  % (24901)------------------------------
% 1.54/1.10  % (24901)------------------------------
% 1.54/1.10  % (24906)Instruction limit reached!
% 1.54/1.10  % (24906)------------------------------
% 1.54/1.10  % (24906)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.54/1.10  % (24906)Termination reason: Unknown
% 1.54/1.10  % (24906)Termination phase: Preprocessing 1
% 1.54/1.10  
% 1.54/1.10  % (24906)Memory used [KB]: 1535
% 1.54/1.10  % (24906)Time elapsed: 0.007 s
% 1.54/1.10  % (24906)Instructions burned: 20 (million)
% 1.54/1.10  % (24906)------------------------------
% 1.54/1.10  % (24906)------------------------------
% 1.54/1.11  % (24902)Instruction limit reached!
% 1.54/1.11  % (24902)------------------------------
% 1.54/1.11  % (24902)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.54/1.11  % (24902)Termination reason: Unknown
% 1.54/1.11  % (24902)Termination phase: Property scanning
% 1.54/1.11  
% 1.54/1.11  % (24902)Memory used [KB]: 1791
% 1.54/1.11  % (24902)Time elapsed: 0.009 s
% 1.54/1.11  % (24902)Instructions burned: 29 (million)
% 1.54/1.11  % (24902)------------------------------
% 1.54/1.11  % (24902)------------------------------
% 1.54/1.11  % (24920)lrs+10_1:1_bet=on:cnfonf=off:fd=off:hud=5:inj=on:i=3:si=on:rtra=on_0 on DTF2THF_24674 for (2999ds/3Mi)
% 1.54/1.11  % (24921)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_24674 for (2999ds/37Mi)
% 1.54/1.11  % (24924)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_24674 for (2999ds/15Mi)
% 1.54/1.11  % (24920)Instruction limit reached!
% 1.54/1.11  % (24920)------------------------------
% 1.54/1.11  % (24920)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.54/1.11  % (24920)Termination reason: Unknown
% 1.54/1.11  % (24920)Termination phase: shuffling
% 1.54/1.11  
% 1.54/1.11  % (24920)Memory used [KB]: 1279
% 1.54/1.11  % (24920)Time elapsed: 0.002 s
% 1.54/1.11  % (24920)Instructions burned: 4 (million)
% 1.54/1.11  % (24920)------------------------------
% 1.54/1.11  % (24920)------------------------------
% 1.73/1.11  % (24928)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_24674 for (2999ds/3Mi)
% 1.73/1.11  % (24924)Instruction limit reached!
% 1.73/1.11  % (24924)------------------------------
% 1.73/1.11  % (24924)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.73/1.11  % (24924)Termination reason: Unknown
% 1.73/1.11  % (24924)Termination phase: Property scanning
% 1.73/1.11  
% 1.73/1.11  % (24924)Memory used [KB]: 1535
% 1.73/1.11  % (24924)Time elapsed: 0.006 s
% 1.73/1.11  % (24924)Instructions burned: 16 (million)
% 1.73/1.11  % (24924)------------------------------
% 1.73/1.11  % (24924)------------------------------
% 1.73/1.12  % (24928)Instruction limit reached!
% 1.73/1.12  % (24928)------------------------------
% 1.73/1.12  % (24928)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.73/1.12  % (24928)Termination reason: Unknown
% 1.73/1.12  % (24928)Termination phase: shuffling
% 1.73/1.12  
% 1.73/1.12  % (24928)Memory used [KB]: 1279
% 1.73/1.12  % (24928)Time elapsed: 0.002 s
% 1.73/1.12  % (24928)Instructions burned: 3 (million)
% 1.73/1.12  % (24928)------------------------------
% 1.73/1.12  % (24928)------------------------------
% 1.73/1.12  % (24933)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_24674 for (2999ds/1041Mi)
% 1.73/1.12  % (24921)Instruction limit reached!
% 1.73/1.12  % (24921)------------------------------
% 1.73/1.12  % (24921)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.73/1.12  % (24921)Termination reason: Unknown
% 1.73/1.12  % (24921)Termination phase: Preprocessing 1
% 1.73/1.12  
% 1.73/1.12  % (24921)Memory used [KB]: 1663
% 1.73/1.12  % (24921)Time elapsed: 0.011 s
% 1.73/1.12  % (24921)Instructions burned: 38 (million)
% 1.73/1.12  % (24921)------------------------------
% 1.73/1.12  % (24921)------------------------------
% 1.73/1.12  % (24936)lrs+10_1:1_av=off:chr=on:plsq=on:slsq=on:i=7:si=on:rtra=on_0 on DTF2THF_24674 for (2999ds/7Mi)
% 1.73/1.12  % (24936)Instruction limit reached!
% 1.73/1.12  % (24936)------------------------------
% 1.73/1.12  % (24936)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.73/1.12  % (24936)Termination reason: Unknown
% 1.73/1.12  % (24936)Termination phase: shuffling
% 1.73/1.12  
% 1.73/1.12  % (24936)Memory used [KB]: 1407
% 1.73/1.12  % (24936)Time elapsed: 0.004 s
% 1.73/1.12  % (24936)Instructions burned: 9 (million)
% 1.73/1.12  % (24936)------------------------------
% 1.73/1.12  % (24936)------------------------------
% 1.73/1.12  % (24937)lrs+10_1:1_acc=on:amm=sco:cs=on:tgt=full:i=16:si=on:rtra=on_0 on DTF2THF_24674 for (2999ds/16Mi)
% 1.73/1.12  % (24938)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_24674 for (2999ds/3Mi)
% 1.73/1.13  % (24938)Instruction limit reached!
% 1.73/1.13  % (24938)------------------------------
% 1.73/1.13  % (24938)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.73/1.13  % (24938)Termination reason: Unknown
% 1.73/1.13  % (24938)Termination phase: shuffling
% 1.73/1.13  
% 1.73/1.13  % (24938)Memory used [KB]: 1279
% 1.73/1.13  % (24938)Time elapsed: 0.002 s
% 1.73/1.13  % (24938)Instructions burned: 3 (million)
% 1.73/1.13  % (24938)------------------------------
% 1.73/1.13  % (24938)------------------------------
% 1.73/1.13  % (24944)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_24674 for (2999ds/3Mi)
% 1.73/1.13  % (24937)Instruction limit reached!
% 1.73/1.13  % (24937)------------------------------
% 1.73/1.13  % (24937)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.73/1.13  % (24937)Termination reason: Unknown
% 1.73/1.13  % (24937)Termination phase: shuffling
% 1.73/1.13  
% 1.73/1.13  % (24937)Memory used [KB]: 1663
% 1.73/1.13  % (24937)Time elapsed: 0.006 s
% 1.73/1.13  % (24937)Instructions burned: 17 (million)
% 1.73/1.13  % (24937)------------------------------
% 1.73/1.13  % (24937)------------------------------
% 1.73/1.13  % (24944)Instruction limit reached!
% 1.73/1.13  % (24944)------------------------------
% 1.73/1.13  % (24944)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.73/1.13  % (24944)Termination reason: Unknown
% 1.73/1.13  % (24944)Termination phase: shuffling
% 1.73/1.13  
% 1.73/1.13  % (24944)Memory used [KB]: 1279
% 1.73/1.13  % (24944)Time elapsed: 0.002 s
% 1.73/1.13  % (24944)Instructions burned: 3 (million)
% 1.73/1.13  % (24944)------------------------------
% 1.73/1.13  % (24944)------------------------------
% 1.73/1.13  % (24950)lrs+10_1:1_cnfonf=off:cs=on:hud=3:prag=on:sup=off:i=7:si=on:rtra=on_0 on DTF2THF_24674 for (2999ds/7Mi)
% 1.73/1.13  % (24950)Instruction limit reached!
% 1.73/1.13  % (24950)------------------------------
% 1.73/1.13  % (24950)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.73/1.13  % (24950)Termination reason: Unknown
% 1.73/1.13  % (24950)Termination phase: shuffling
% 1.73/1.13  
% 1.73/1.13  % (24950)Memory used [KB]: 1407
% 1.73/1.13  % (24950)Time elapsed: 0.003 s
% 1.73/1.13  % (24950)Instructions burned: 7 (million)
% 1.73/1.13  % (24950)------------------------------
% 1.73/1.13  % (24950)------------------------------
% 1.73/1.13  % (24956)dis+1002_1:1_add=large:cnfonf=lazy_pi_sigma_gen:fe=off:prag=on:i=3:si=on:rtra=on_0 on DTF2THF_24674 for (2999ds/3Mi)
% 1.73/1.14  % (24956)Instruction limit reached!
% 1.73/1.14  % (24956)------------------------------
% 1.73/1.14  % (24956)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.73/1.14  % (24956)Termination reason: Unknown
% 1.73/1.14  % (24956)Termination phase: shuffling
% 1.73/1.14  
% 1.73/1.14  % (24956)Memory used [KB]: 1279
% 1.73/1.14  % (24956)Time elapsed: 0.002 s
% 1.73/1.14  % (24956)Instructions burned: 4 (million)
% 1.73/1.14  % (24956)------------------------------
% 1.73/1.14  % (24956)------------------------------
% 1.73/1.14  % (24957)dis+1004_1:1_cha=on:cs=on:fe=off:hud=1:i=4:si=on:rtra=on_0 on DTF2THF_24674 for (2999ds/4Mi)
% 1.73/1.14  % (24958)lrs+1002_1:1_anc=all_dependent:au=on:cbe=off:fde=unused:ntd=on:i=18:si=on:rtra=on_0 on DTF2THF_24674 for (2999ds/18Mi)
% 1.73/1.14  % (24957)Instruction limit reached!
% 1.73/1.14  % (24957)------------------------------
% 1.73/1.14  % (24957)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.73/1.14  % (24957)Termination reason: Unknown
% 1.73/1.14  % (24957)Termination phase: shuffling
% 1.73/1.14  
% 1.73/1.14  % (24957)Memory used [KB]: 1279
% 1.73/1.14  % (24957)Time elapsed: 0.002 s
% 1.73/1.14  % (24957)Instructions burned: 4 (million)
% 1.73/1.14  % (24957)------------------------------
% 1.73/1.14  % (24957)------------------------------
% 1.73/1.14  % (24962)lrs+10_1:1_e2e=on:sd=1:sgt=8:ss=axioms:i=710:si=on:rtra=on_0 on DTF2THF_24674 for (2999ds/710Mi)
% 1.73/1.14  % (24958)Instruction limit reached!
% 1.73/1.14  % (24958)------------------------------
% 1.73/1.14  % (24958)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.73/1.14  % (24958)Termination reason: Unknown
% 1.73/1.14  % (24958)Termination phase: shuffling
% 1.73/1.14  
% 1.73/1.14  % (24958)Memory used [KB]: 1535
% 1.73/1.14  % (24958)Time elapsed: 0.006 s
% 1.73/1.14  % (24958)Instructions burned: 18 (million)
% 1.73/1.14  % (24958)------------------------------
% 1.73/1.14  % (24958)------------------------------
% 1.73/1.15  % (24965)lrs+1004_1:1_chr=on:prag=on:i=6:si=on:rtra=on_0 on DTF2THF_24674 for (2999ds/6Mi)
% 1.73/1.15  % (24965)Instruction limit reached!
% 1.73/1.15  % (24965)------------------------------
% 1.73/1.15  % (24965)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.73/1.15  % (24965)Termination reason: Unknown
% 1.73/1.15  % (24965)Termination phase: shuffling
% 1.73/1.15  
% 1.73/1.15  % (24965)Memory used [KB]: 1407
% 1.73/1.15  % (24965)Time elapsed: 0.003 s
% 1.73/1.15  % (24965)Instructions burned: 8 (million)
% 1.73/1.15  % (24965)------------------------------
% 1.73/1.15  % (24965)------------------------------
% 1.73/1.15  % (24970)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_24674 for (2999ds/902Mi)
% 1.73/1.15  % (24900)Instruction limit reached!
% 1.73/1.15  % (24900)------------------------------
% 1.73/1.15  % (24900)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.73/1.15  % (24900)Termination reason: Unknown
% 1.73/1.15  % (24900)Termination phase: Saturation
% 1.73/1.15  
% 1.73/1.15  % (24900)Memory used [KB]: 7547
% 1.73/1.15  % (24900)Time elapsed: 0.052 s
% 1.73/1.15  % (24900)Instructions burned: 185 (million)
% 1.73/1.15  % (24900)------------------------------
% 1.73/1.15  % (24900)------------------------------
% 1.73/1.15  % (24975)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_24674 for (2999ds/21Mi)
% 1.73/1.16  % (24978)dis+10_1:1_cnfonf=lazy_gen:fe=off:i=5:si=on:rtra=on_0 on DTF2THF_24674 for (2999ds/5Mi)
% 1.73/1.16  % (24978)Instruction limit reached!
% 1.73/1.16  % (24978)------------------------------
% 1.73/1.16  % (24978)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.73/1.16  % (24978)Termination reason: Unknown
% 1.73/1.16  % (24978)Termination phase: shuffling
% 1.73/1.16  
% 1.73/1.16  % (24978)Memory used [KB]: 1407
% 1.73/1.16  % (24978)Time elapsed: 0.003 s
% 1.73/1.16  % (24978)Instructions burned: 7 (million)
% 1.73/1.16  % (24978)------------------------------
% 1.73/1.16  % (24978)------------------------------
% 1.73/1.16  % (24975)Instruction limit reached!
% 1.73/1.16  % (24975)------------------------------
% 1.73/1.16  % (24975)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.73/1.16  % (24975)Termination reason: Unknown
% 1.73/1.16  % (24975)Termination phase: shuffling
% 1.73/1.16  
% 1.73/1.16  % (24975)Memory used [KB]: 1663
% 1.73/1.16  % (24975)Time elapsed: 0.007 s
% 1.73/1.16  % (24975)Instructions burned: 21 (million)
% 1.73/1.16  % (24975)------------------------------
% 1.73/1.16  % (24975)------------------------------
% 1.73/1.16  % (24980)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_24674 for (2999ds/6Mi)
% 1.73/1.16  % (24980)Instruction limit reached!
% 1.73/1.16  % (24980)------------------------------
% 1.73/1.16  % (24980)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.73/1.16  % (24980)Termination reason: Unknown
% 1.73/1.16  % (24980)Termination phase: shuffling
% 1.73/1.16  
% 1.73/1.16  % (24980)Memory used [KB]: 1407
% 1.73/1.16  % (24980)Time elapsed: 0.003 s
% 1.73/1.16  % (24980)Instructions burned: 7 (million)
% 1.73/1.16  % (24980)------------------------------
% 1.73/1.16  % (24980)------------------------------
% 1.73/1.17  % (24986)lrs+1002_1:128_au=on:c=on:fsr=off:piset=equals:i=377:si=on:rtra=on_0 on DTF2THF_24674 for (2999ds/377Mi)
% 1.73/1.17  % (24988)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_24674 for (2999ds/779Mi)
% 1.73/1.17  % (24989)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_24674 for (2999ds/19Mi)
% 1.73/1.18  % (24989)Instruction limit reached!
% 1.73/1.18  % (24989)------------------------------
% 1.73/1.18  % (24989)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.73/1.18  % (24989)Termination reason: Unknown
% 1.73/1.18  % (24989)Termination phase: shuffling
% 1.73/1.18  
% 1.73/1.18  % (24989)Memory used [KB]: 1663
% 1.73/1.18  % (24989)Time elapsed: 0.007 s
% 1.73/1.18  % (24989)Instructions burned: 21 (million)
% 1.73/1.18  % (24989)------------------------------
% 1.73/1.18  % (24989)------------------------------
% 1.73/1.18  % (24905)Instruction limit reached!
% 1.73/1.18  % (24905)------------------------------
% 1.73/1.18  % (24905)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.73/1.18  % (24905)Termination reason: Unknown
% 1.73/1.18  % (24905)Termination phase: Saturation
% 1.73/1.18  
% 1.73/1.18  % (24905)Memory used [KB]: 8059
% 1.73/1.18  % (24905)Time elapsed: 0.086 s
% 1.73/1.18  % (24905)Instructions burned: 275 (million)
% 1.73/1.18  % (24905)------------------------------
% 1.73/1.18  % (24905)------------------------------
% 1.73/1.19  % (24998)lrs+1010_1:1_au=on:s2a=on:sd=1:sgt=50:ss=axioms:i=879:si=on:rtra=on_0 on DTF2THF_24674 for (2999ds/879Mi)
% 1.73/1.19  % (25004)dis+1002_1:128_acc=on:er=filter:i=17:si=on:rtra=on_0 on DTF2THF_24674 for (2999ds/17Mi)
% 1.73/1.20  % (25004)Instruction limit reached!
% 1.73/1.20  % (25004)------------------------------
% 1.73/1.20  % (25004)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.73/1.20  % (25004)Termination reason: Unknown
% 1.73/1.20  % (25004)Termination phase: shuffling
% 1.73/1.20  
% 1.73/1.20  % (25004)Memory used [KB]: 1535
% 1.73/1.20  % (25004)Time elapsed: 0.006 s
% 1.73/1.20  % (25004)Instructions burned: 18 (million)
% 1.73/1.20  % (25004)------------------------------
% 1.73/1.20  % (25004)------------------------------
% 1.73/1.21  % (25015)ott+21_1:1_apa=on:au=on:cnfonf=off:sos=on:i=3:si=on:rtra=on_0 on DTF2THF_24674 for (2998ds/3Mi)
% 1.73/1.21  % (25015)Instruction limit reached!
% 1.73/1.21  % (25015)------------------------------
% 1.73/1.21  % (25015)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.73/1.21  % (25015)Termination reason: Unknown
% 1.73/1.21  % (25015)Termination phase: shuffling
% 1.73/1.21  
% 1.73/1.21  % (25015)Memory used [KB]: 1279
% 1.73/1.21  % (25015)Time elapsed: 0.002 s
% 1.73/1.21  % (25015)Instructions burned: 4 (million)
% 1.73/1.21  % (25015)------------------------------
% 1.73/1.21  % (25015)------------------------------
% 1.73/1.22  % (25020)lrs+1010_1:8_cnfonf=off:hud=1:inj=on:tnu=5:i=30:si=on:rtra=on_0 on DTF2THF_24674 for (2998ds/30Mi)
% 1.73/1.23  % (25020)Instruction limit reached!
% 1.73/1.23  % (25020)------------------------------
% 1.73/1.23  % (25020)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.73/1.23  % (25020)Termination reason: Unknown
% 1.73/1.23  % (25020)Termination phase: Property scanning
% 1.73/1.23  
% 1.73/1.23  % (25020)Memory used [KB]: 1663
% 1.73/1.23  % (25020)Time elapsed: 0.009 s
% 1.73/1.23  % (25020)Instructions burned: 31 (million)
% 1.73/1.23  % (25020)------------------------------
% 1.73/1.23  % (25020)------------------------------
% 1.73/1.23  % (24970)First to succeed.
% 1.73/1.23  % (24970)Refutation found. Thanks to Tanya!
% 1.73/1.23  % SZS status Theorem for DTF2THF_24674
% 1.73/1.23  % SZS output start Proof for DTF2THF_24674
% 1.73/1.23  thf(func_def_0, type, in: $i > $i > $o).
% 1.73/1.23  thf(func_def_1, type, exu: ($i > $o) > $o).
% 1.73/1.23  thf(func_def_6, type, setadjoin: $i > $i > $i).
% 1.73/1.23  thf(func_def_8, type, powerset: $i > $i).
% 1.73/1.23  thf(func_def_10, type, setunion: $i > $i).
% 1.73/1.23  thf(func_def_19, type, descr: ($i > $o) > $i).
% 1.73/1.23  thf(func_def_21, type, dsetconstr: $i > ($i > $o) > $i).
% 1.73/1.23  thf(func_def_26, type, prop2set: $o > $i).
% 1.73/1.23  thf(func_def_36, type, nonempty: $i > $o).
% 1.73/1.23  thf(func_def_69, type, set2prop: $i > $o).
% 1.73/1.23  thf(func_def_88, type, subset: $i > $i > $o).
% 1.73/1.23  thf(func_def_89, type, disjoint: $i > $i > $o).
% 1.73/1.23  thf(func_def_90, type, setsmeet: $i > $i > $o).
% 1.73/1.23  thf(func_def_114, type, binunion: $i > $i > $i).
% 1.73/1.23  thf(func_def_122, type, binintersect: $i > $i > $i).
% 1.73/1.23  thf(func_def_135, type, regular: $i > $o).
% 1.73/1.23  thf(func_def_136, type, setminus: $i > $i > $i).
% 1.73/1.23  thf(func_def_147, type, symdiff: $i > $i > $i).
% 1.73/1.23  thf(func_def_153, type, iskpair: $i > $o).
% 1.73/1.23  thf(func_def_158, type, kpair: $i > $i > $i).
% 1.73/1.23  thf(func_def_160, type, cartprod: $i > $i > $i).
% 1.73/1.23  thf(func_def_185, type, sP0: $i > $i > $i > $o > $o).
% 1.73/1.23  thf(func_def_186, type, sP1: $i > $i > $o).
% 1.73/1.23  thf(func_def_187, type, sP2: $i > $o).
% 1.73/1.23  thf(func_def_188, type, sP3: $i > $i > $o).
% 1.73/1.23  thf(func_def_189, type, sP4: $i > $i > $o).
% 1.73/1.23  thf(func_def_198, type, sK13: $i > $i > $i).
% 1.73/1.23  thf(func_def_204, type, sK19: ($i > $o) > $i > $i).
% 1.73/1.23  thf(func_def_206, type, sK21: $i > $o).
% 1.73/1.23  thf(func_def_208, type, sK23: $i > $o).
% 1.73/1.23  thf(func_def_215, type, sK30: $i > $i > $i > $i).
% 1.73/1.23  thf(func_def_216, type, sK31: $i > $i > $i > $i).
% 1.73/1.23  thf(func_def_221, type, sK36: $i > $i).
% 1.73/1.23  thf(func_def_223, type, sK38: $i > $i).
% 1.73/1.23  thf(func_def_226, type, sK41: $i > $i).
% 1.73/1.23  thf(func_def_237, type, sK52: $i > $o).
% 1.73/1.23  thf(func_def_239, type, sK54: ($i > $o) > $i > $i).
% 1.73/1.23  thf(func_def_241, type, sK56: ($i > $o) > ($i > $o) > $i).
% 1.73/1.23  thf(func_def_242, type, sK57: ($i > $o) > ($i > $o) > $i).
% 1.73/1.23  thf(func_def_243, type, sK58: $i > $o).
% 1.73/1.23  thf(func_def_244, type, sK59: $i > $o).
% 1.73/1.23  thf(func_def_253, type, sK68: $i > $o).
% 1.73/1.23  thf(func_def_260, type, sK75: $i > $i > $i).
% 1.73/1.23  thf(func_def_267, type, sK82: $i > $o).
% 1.73/1.23  thf(func_def_268, type, sK83: $i > $o).
% 1.73/1.23  thf(func_def_269, type, sK84: ($i > $o) > ($i > $o) > $i > $i > $i).
% 1.73/1.23  thf(func_def_270, type, sK85: ($i > $o) > ($i > $o) > $i > $i > $i).
% 1.73/1.23  thf(func_def_272, type, sK87: $i > $o).
% 1.73/1.23  thf(func_def_274, type, sK89: $i > $i).
% 1.73/1.23  thf(func_def_285, type, sK100: $i > $i > $i).
% 1.73/1.23  thf(func_def_286, type, sK101: $i > $i > $i).
% 1.73/1.23  thf(func_def_300, type, sK115: $i > $i).
% 1.73/1.23  thf(func_def_303, type, sK118: ($i > $o) > $i).
% 1.73/1.23  thf(func_def_304, type, sK119: $i > $o).
% 1.73/1.23  thf(func_def_305, type, sK120: $i > $i).
% 1.73/1.23  thf(func_def_324, type, sK139: $i > $o).
% 1.73/1.23  thf(func_def_327, type, sK142: ($i > $o) > ($i > $o) > $i).
% 1.73/1.23  thf(func_def_328, type, sK143: ($i > $o) > ($i > $o) > $i).
% 1.73/1.23  thf(func_def_329, type, sK144: $i > $o).
% 1.73/1.23  thf(func_def_330, type, sK145: $i > $o).
% 1.73/1.23  thf(func_def_331, type, sK146: $i > ($i > $o) > $i).
% 1.73/1.23  thf(func_def_332, type, sK147: $i > $o).
% 1.73/1.23  thf(func_def_338, type, sK153: $i > $i).
% 1.73/1.23  thf(func_def_347, type, sK162: $i > $o).
% 1.73/1.23  thf(func_def_349, type, sK164: ($i > $o) > $i).
% 1.73/1.23  thf(func_def_350, type, sK165: ($i > $o) > $i).
% 1.73/1.23  thf(func_def_358, type, sK173: $i > $o).
% 1.73/1.23  thf(func_def_361, type, sK176: $i > $i > $i).
% 1.73/1.23  thf(func_def_362, type, sK177: $i > $i > $i).
% 1.73/1.23  thf(func_def_379, type, sK194: $i > $o).
% 1.73/1.23  thf(func_def_387, type, sK202: $i > $o).
% 1.73/1.23  thf(func_def_395, type, sK210: $i > $o).
% 1.73/1.23  thf(func_def_397, type, sK212: ($i > $o) > $i > $i).
% 1.73/1.23  thf(func_def_402, type, sK217: $i > $i > $i).
% 1.73/1.23  thf(func_def_403, type, sK218: $i > $i > $i).
% 1.73/1.23  thf(func_def_404, type, sK219: $i > $i > $i).
% 1.73/1.23  thf(func_def_405, type, sK220: $i > $i > $i).
% 1.73/1.23  thf(func_def_406, type, sK221: $i > $i > $i).
% 1.73/1.23  thf(func_def_407, type, sK222: $i > $i > $i > $i).
% 1.73/1.23  thf(func_def_408, type, sK223: $i > $i).
% 1.73/1.23  thf(func_def_409, type, sK224: $i > $i).
% 1.73/1.23  thf(func_def_410, type, sK225: $i > $i).
% 1.73/1.23  thf(func_def_411, type, sK226: $i > $i).
% 1.73/1.23  thf(func_def_412, type, sK227: $i > $i > $i > $i).
% 1.73/1.23  thf(func_def_413, type, sK228: $i > $i > $i > $i).
% 1.73/1.23  thf(func_def_414, type, sK229: $i > $i > $i).
% 1.73/1.23  thf(func_def_415, type, sK230: $i > $i > $i).
% 1.73/1.23  thf(func_def_416, type, sK231: $i > $i > $i).
% 1.73/1.23  thf(func_def_418, type, sK233: $i > $i).
% 1.73/1.23  thf(func_def_419, type, sK234: $i > $i).
% 1.73/1.23  thf(func_def_420, type, sK235: $i > $i).
% 1.73/1.23  thf(func_def_421, type, sK236: $i > $o).
% 1.73/1.23  thf(func_def_424, type, sK239: $i > $o).
% 1.73/1.23  thf(func_def_426, type, sK241: $i > ($i > $o) > $i).
% 1.73/1.23  thf(func_def_438, type, sK253: $i > $i > $i).
% 1.73/1.23  thf(func_def_448, type, sK263: $i > $o).
% 1.73/1.23  thf(func_def_450, type, sK265: $i > ($i > $o) > $i).
% 1.73/1.23  thf(func_def_456, type, sK271: $i > $o).
% 1.73/1.23  thf(func_def_461, type, sK276: $i > $o).
% 1.73/1.23  thf(func_def_468, type, sK283: $o > $i > $i > $i).
% 1.73/1.23  thf(func_def_489, type, sK304: $i > $o).
% 1.73/1.23  thf(func_def_492, type, sK307: $i > ($i > $o) > $i).
% 1.73/1.23  thf(func_def_506, type, sK321: $i > $o).
% 1.73/1.23  thf(func_def_508, type, sK323: $i > ($i > $o) > $i).
% 1.73/1.23  thf(func_def_509, type, sK324: $i > $o).
% 1.73/1.23  thf(func_def_535, type, sK350: $i > $i > $o).
% 1.73/1.23  thf(func_def_537, type, sK352: $i > $i).
% 1.73/1.23  thf(func_def_538, type, sK353: $i > $i).
% 1.73/1.23  thf(func_def_539, type, sK354: $i > ($i > $i > $o) > $i).
% 1.73/1.23  thf(func_def_540, type, sK355: $i > ($i > $i > $o) > $i).
% 1.73/1.23  thf(func_def_541, type, sK356: $i > $i > ($i > $i > $o) > $i).
% 1.73/1.23  thf(func_def_544, type, sK359: $i > $i > $i).
% 1.73/1.23  thf(func_def_547, type, sK362: ($i > $o) > $i).
% 1.73/1.23  thf(func_def_548, type, sK363: $i > $o).
% 1.73/1.23  thf(func_def_549, type, sK364: $i > $i).
% 1.73/1.23  thf(func_def_557, type, sK372: $i > $o).
% 1.73/1.23  thf(func_def_558, type, sK373: ($i > $o) > $i).
% 1.73/1.23  thf(func_def_572, type, sK387: $i > $i).
% 1.73/1.23  thf(func_def_577, type, sK392: $i > $o).
% 1.73/1.23  thf(func_def_596, type, sK411: $i > $i > $i).
% 1.73/1.23  thf(func_def_603, type, ph418: !>[X0: $tType]:(X0)).
% 1.73/1.23  thf(f3757,plain,(
% 1.73/1.23    $false),
% 1.73/1.23    inference(trivial_inequality_removal,[status(thm)],[f3744])).
% 1.73/1.23  thf(f3744,plain,(
% 1.73/1.23    ($true != $true)),
% 1.73/1.23    inference(superposition,[status(thm)],[f3585,f1907])).
% 1.73/1.23  thf(f1907,plain,(
% 1.73/1.23    ($true = (in @ sK375 @ (setunion @ sK374)))),
% 1.73/1.23    inference(cnf_transformation,[status(thm)],[f1272])).
% 1.73/1.23  thf(f1272,plain,(
% 1.73/1.23    (emptyinPowerset = $true) & (foundationAx = $true) & (binintersectSubset1 = $true) & (quantDeMorgan3 = $true) & (wellorderingAx = $true) & (eqimpsubset2 = $true) & (emptyset__Cong = $true) & (notdexE = $true) & (binunionIL = $true) & (setextAx = $true) & (binunionIR = $true) & (setbeta = $true) & (bs114d = $true) & (descrp = $true) & (setukpairIR = $true) & (powersetAx = $true) & (emptyinunitempty = $true) & (exuI2 = $true) & (cartprodmempair1 = $true) & (nonemptyE1 = $true) & (secondinupair = $true) & (notinemptyset = $true) & (setminusEL = $true) & (subsetemptysetimpeq = $true) & (singletonsubset = $true) & (upairsetE = $true) & (setminusERneg = $true) & (binintersectSubset4 = $true) & (setadjoinE = $true) & (nonemptyI1 = $true) & (nonemptyI = $true) & (binintersectEL = $true) & (powersetsubset = $true) & (subset2powerset = $true) & (setoftrueEq = $true) & (cartprodpairin = $true) & (kpairp = $true) & (emptyInPowerset = $true) & (upairsubunion = $true) & (inCongP = $true) & (singletoninpowunion = $true) & (powersetI = $true) & (setunionE = $true) & (notequalI2 = $true) & (binintersectSubset2 = $true) & (eqinunit = $true) & (exuI1 = $true) & (setminusILneg = $true) & (dsetconstrEL = $true) & (quantDeMorgan2 = $true) & (prop2setI = $true) & (noeltsimpempty = $true) & (disjointsetsI1 = $true) & (exuE3e = $true) & (symdiffIneg1 = $true) & (symdiffIneg2 = $true) & (setminusIRneg = $true) & (setminusSubset1 = $true) & (exuE1 = $true) & (binintersectLsub = $true) & (ubforcartprodlem2 = $true) & (setadjoinSub = $true) & (subsetE2 = $true) & (descr__Cong = $true) & (setext = $true) & (binintersectER = $true) & (binintersectI = $true) & (sepSubset = $true) & (setadjoin__Cong = $true) & (subsetE = $true) & (subsetI2 = $true) & (setukpairIL = $true) & (powersetE1 = $true) & (prop2set2propI = $true) & (symdiffI1 = $true) & (eqimpsubset1 = $true) & (notdallE = $true) & (setminusLsub = $true) & (emptysetAx = $true) & (ubforcartprodlem3 = $true) & (setadjoinAx = $true) & (symdiffI2 = $true) & (notsubsetI = $true) & (uniqinunit = $true) & (replAx = $true) & (emptyE1 = $true) & (singletoninpowerset = $true) & (upairsetIL = $true) & (exu__Cong = $true) & (omega__Cong = $true) & (notequalI1 = $true) & (omegaSAx = $true) & (powerset__Cong = $true) & (symdiffE = $true) & (vacuousDall = $true) & (subsetI1 = $true) & (powersetE = $true) & (cartprodmempair = $true) & (exuI3 = $true) & (setminusELneg = $true) & (nonemptyImpWitness = $true) & (binunionE = $true) & (kpairiskpair = $true) & (upairset2E = $true) & (dsetconstrER = $true) & (setadjoinOr = $true) & (upairset2IR = $true) & (emptysetimpfalse = $true) & (quantDeMorgan1 = $true) & (subPowSU = $true) & (! [X2 : $i] : (($true != (in @ X2 @ sK374)) | ((in @ sK375 @ X2) != $true)) & ($true = (in @ sK375 @ (setunion @ sK374)))) & (binunionRsub = $true) & (emptysetE = $true) & (setminusSubset2 = $true) & (quantDeMorgan4 = $true) & (setadjoinSub2 = $true) & (setunion__Cong = $true) & (exuEu = $true) & (inPowerset = $true) & (prop2setE = $true) & (notinsingleton = $true) & (binunionEcases = $true) & (emptyI = $true) & (ubforcartprodlem1 = $true) & (setadjoinIL = $true) & (dsetconstr__Cong = $true) & (setminusI = $true) & (powersetI1 = $true) & (binintersectSubset5 = $true) & (setextsub = $true) & (binunionLsub = $true) & (exuE3u = $true) & (dsetconstrI = $true) & (setunionAx = $true) & (omegaIndAx = $true) & (binintersectSubset3 = $true) & (singletonsswitch = $true) & (omega0Ax = $true) & (setadjoinIR = $true) & (setminusER = $true) & (binintersectRsub = $true) & (in__Cong = $true) & (subsetTrans = $true) & (upairsetIR = $true) & (sepInPowerset = $true) & (subsetRefl = $true) & (setunionI = $true) & (exuE2 = $true) & (upairinpowunion = $true) & (emptysetsubset = $true)),
% 1.73/1.23    inference(skolemisation,[status(esa),new_symbols(skolem,[sK374,sK375])],[f555,f1271])).
% 1.73/1.23  thf(f1271,plain,(
% 1.73/1.23    ? [X0 : $i,X1 : $i] : (! [X2 : $i] : (((in @ X2 @ X0) != $true) | ((in @ X1 @ X2) != $true)) & ((in @ X1 @ (setunion @ X0)) = $true)) => (! [X2 : $i] : (($true != (in @ X2 @ sK374)) | ((in @ sK375 @ X2) != $true)) & ($true = (in @ sK375 @ (setunion @ sK374))))),
% 1.73/1.23    introduced(definition,[],[choice_axiom])).
% 1.73/1.23  thf(f555,plain,(
% 1.73/1.23    (emptyinPowerset = $true) & (foundationAx = $true) & (binintersectSubset1 = $true) & (quantDeMorgan3 = $true) & (wellorderingAx = $true) & (eqimpsubset2 = $true) & (emptyset__Cong = $true) & (notdexE = $true) & (binunionIL = $true) & (setextAx = $true) & (binunionIR = $true) & (setbeta = $true) & (bs114d = $true) & (descrp = $true) & (setukpairIR = $true) & (powersetAx = $true) & (emptyinunitempty = $true) & (exuI2 = $true) & (cartprodmempair1 = $true) & (nonemptyE1 = $true) & (secondinupair = $true) & (notinemptyset = $true) & (setminusEL = $true) & (subsetemptysetimpeq = $true) & (singletonsubset = $true) & (upairsetE = $true) & (setminusERneg = $true) & (binintersectSubset4 = $true) & (setadjoinE = $true) & (nonemptyI1 = $true) & (nonemptyI = $true) & (binintersectEL = $true) & (powersetsubset = $true) & (subset2powerset = $true) & (setoftrueEq = $true) & (cartprodpairin = $true) & (kpairp = $true) & (emptyInPowerset = $true) & (upairsubunion = $true) & (inCongP = $true) & (singletoninpowunion = $true) & (powersetI = $true) & (setunionE = $true) & (notequalI2 = $true) & (binintersectSubset2 = $true) & (eqinunit = $true) & (exuI1 = $true) & (setminusILneg = $true) & (dsetconstrEL = $true) & (quantDeMorgan2 = $true) & (prop2setI = $true) & (noeltsimpempty = $true) & (disjointsetsI1 = $true) & (exuE3e = $true) & (symdiffIneg1 = $true) & (symdiffIneg2 = $true) & (setminusIRneg = $true) & (setminusSubset1 = $true) & (exuE1 = $true) & (binintersectLsub = $true) & (ubforcartprodlem2 = $true) & (setadjoinSub = $true) & (subsetE2 = $true) & (descr__Cong = $true) & (setext = $true) & (binintersectER = $true) & (binintersectI = $true) & (sepSubset = $true) & (setadjoin__Cong = $true) & (subsetE = $true) & (subsetI2 = $true) & (setukpairIL = $true) & (powersetE1 = $true) & (prop2set2propI = $true) & (symdiffI1 = $true) & (eqimpsubset1 = $true) & (notdallE = $true) & (setminusLsub = $true) & (emptysetAx = $true) & (ubforcartprodlem3 = $true) & (setadjoinAx = $true) & (symdiffI2 = $true) & (notsubsetI = $true) & (uniqinunit = $true) & (replAx = $true) & (emptyE1 = $true) & (singletoninpowerset = $true) & (upairsetIL = $true) & (exu__Cong = $true) & (omega__Cong = $true) & (notequalI1 = $true) & (omegaSAx = $true) & (powerset__Cong = $true) & (symdiffE = $true) & (vacuousDall = $true) & (subsetI1 = $true) & (powersetE = $true) & (cartprodmempair = $true) & (exuI3 = $true) & (setminusELneg = $true) & (nonemptyImpWitness = $true) & (binunionE = $true) & (kpairiskpair = $true) & (upairset2E = $true) & (dsetconstrER = $true) & (setadjoinOr = $true) & (upairset2IR = $true) & (emptysetimpfalse = $true) & (quantDeMorgan1 = $true) & (subPowSU = $true) & ? [X0 : $i,X1 : $i] : (! [X2 : $i] : (((in @ X2 @ X0) != $true) | ((in @ X1 @ X2) != $true)) & ((in @ X1 @ (setunion @ X0)) = $true)) & (binunionRsub = $true) & (emptysetE = $true) & (setminusSubset2 = $true) & (quantDeMorgan4 = $true) & (setadjoinSub2 = $true) & (setunion__Cong = $true) & (exuEu = $true) & (inPowerset = $true) & (prop2setE = $true) & (notinsingleton = $true) & (binunionEcases = $true) & (emptyI = $true) & (ubforcartprodlem1 = $true) & (setadjoinIL = $true) & (dsetconstr__Cong = $true) & (setminusI = $true) & (powersetI1 = $true) & (binintersectSubset5 = $true) & (setextsub = $true) & (binunionLsub = $true) & (exuE3u = $true) & (dsetconstrI = $true) & (setunionAx = $true) & (omegaIndAx = $true) & (binintersectSubset3 = $true) & (singletonsswitch = $true) & (omega0Ax = $true) & (setadjoinIR = $true) & (setminusER = $true) & (binintersectRsub = $true) & (in__Cong = $true) & (subsetTrans = $true) & (upairsetIR = $true) & (sepInPowerset = $true) & (subsetRefl = $true) & (setunionI = $true) & (exuE2 = $true) & (upairinpowunion = $true) & (emptysetsubset = $true)),
% 1.73/1.23    inference(flattening,[status(thm)],[f554])).
% 1.73/1.23  thf(f554,plain,(
% 1.73/1.23    ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((? [X0 : $i,X1 : $i] : (! [X2 : $i] : (((in @ X2 @ X0) != $true) | ((in @ X1 @ X2) != $true)) & ((in @ X1 @ (setunion @ X0)) = $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)),
% 1.73/1.23    inference(ennf_transformation,[status(thm)],[f220])).
% 1.73/1.23  thf(f220,plain,(
% 1.73/1.23    ~((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) => ! [X0 : $i,X1 : $i] : (((in @ X1 @ (setunion @ X0)) = $true) => ? [X2 : $i] : (((in @ X1 @ X2) = $true) & ((in @ X2 @ X0) = $true))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))),
% 1.73/1.23    inference(fool_elimination,[status(thm)],[f219])).
% 1.73/1.23  thf(f219,plain,(
% 1.73/1.23    ~(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 => ! [X0 : $i,X1 : $i] : ((in @ X1 @ (setunion @ X0)) => ? [X2 : $i] : ((in @ X1 @ X2) & (in @ X2 @ X0))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))),
% 1.73/1.23    inference(rectify,[status(thm)],[f155])).
% 1.73/1.23  thf(f155,negated_conjecture,(
% 1.73/1.23    ~(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 => ! [X3 : $i,X1 : $i] : ((in @ X1 @ (setunion @ X3)) => ? [X11 : $i] : ((in @ X1 @ X11) & (in @ X11 @ X3))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))),
% 1.73/1.23    inference(negated_conjecture,[status(cth)],[f154])).
% 1.73/1.23  thf(f154,conjecture,(
% 1.73/1.23    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 => ! [X3 : $i,X1 : $i] : ((in @ X1 @ (setunion @ X3)) => ? [X11 : $i] : ((in @ X1 @ X11) & (in @ X11 @ X3)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))),
% 1.73/1.23    file('/export/starexec/sandbox2/tmp/tmp.9E07OigdIH/DTF2THF_24674.p',setunionE2)).
% 1.73/1.23  thf(f3585,plain,(
% 1.73/1.23    ($true != (in @ sK375 @ (setunion @ sK374)))),
% 1.73/1.23    inference(trivial_inequality_removal,[status(thm)],[f3584])).
% 1.73/1.23  thf(f3584,plain,(
% 1.73/1.23    ($true != (in @ sK375 @ (setunion @ sK374))) | ($true != $true)),
% 1.73/1.23    inference(forward_demodulation,[status(thm)],[f3583,f1884])).
% 1.73/1.23  thf(f1884,plain,(
% 1.73/1.23    (setunionAx = $true)),
% 1.73/1.23    inference(cnf_transformation,[status(thm)],[f1272])).
% 1.73/1.23  thf(f3583,plain,(
% 1.73/1.23    ($true != (in @ sK375 @ (setunion @ sK374))) | (setunionAx != $true)),
% 1.73/1.23    inference(trivial_inequality_removal,[status(thm)],[f3582])).
% 1.73/1.23  thf(f3582,plain,(
% 1.73/1.23    ($true != $true) | (setunionAx != $true) | ($true != (in @ sK375 @ (setunion @ sK374)))),
% 1.73/1.23    inference(duplicate_literal_removal,[status(thm)],[f3573])).
% 1.73/1.23  thf(f3573,plain,(
% 1.73/1.23    ($true != $true) | (setunionAx != $true) | ($true != (in @ sK375 @ (setunion @ sK374))) | ($true != (in @ sK375 @ (setunion @ sK374)))),
% 1.73/1.23    inference(superposition,[status(thm)],[f2361,f1483])).
% 1.73/1.23  thf(f1483,plain,(
% 1.73/1.23    ( ! [X0 : $i,X1 : $i] : (((in @ X1 @ (sK101 @ X1 @ X0)) = $true) | (setunionAx != $true) | ((in @ X1 @ (setunion @ X0)) != $true)) )),
% 1.73/1.23    inference(cnf_transformation,[status(thm)],[f821])).
% 1.73/1.23  thf(f821,plain,(
% 1.73/1.23    (! [X0 : $i,X1 : $i] : ((((in @ X1 @ (setunion @ X0)) = $true) | ! [X2 : $i] : (((in @ X1 @ X2) != $true) | ((in @ X2 @ X0) != $true))) & ((((in @ X1 @ (sK101 @ X1 @ X0)) = $true) & ((in @ (sK101 @ X1 @ X0) @ X0) = $true)) | ((in @ X1 @ (setunion @ X0)) != $true))) | (setunionAx != $true)) & ((setunionAx = $true) | ((! [X6 : $i] : (($true != (in @ sK103 @ X6)) | ($true != (in @ X6 @ sK102))) | ((in @ sK103 @ (setunion @ sK102)) != $true)) & ((($true = (in @ sK103 @ sK104)) & ((in @ sK104 @ sK102) = $true)) | ((in @ sK103 @ (setunion @ sK102)) = $true))))),
% 1.73/1.23    inference(skolemisation,[status(esa),new_symbols(skolem,[sK101,sK102,sK103,sK104])],[f817,f820,f819,f818])).
% 1.73/1.23  thf(f818,plain,(
% 1.73/1.23    ! [X0 : $i,X1 : $i] : (? [X3 : $i] : (((in @ X1 @ X3) = $true) & ((in @ X3 @ X0) = $true)) => (((in @ X1 @ (sK101 @ X1 @ X0)) = $true) & ((in @ (sK101 @ X1 @ X0) @ X0) = $true)))),
% 1.73/1.23    introduced(definition,[],[choice_axiom])).
% 1.73/1.23  thf(f819,plain,(
% 1.73/1.23    ? [X4 : $i,X5 : $i] : ((! [X6 : $i] : (($true != (in @ X5 @ X6)) | ((in @ X6 @ X4) != $true)) | ((in @ X5 @ (setunion @ X4)) != $true)) & (? [X7 : $i] : (($true = (in @ X5 @ X7)) & ((in @ X7 @ X4) = $true)) | ((in @ X5 @ (setunion @ X4)) = $true))) => ((! [X6 : $i] : (($true != (in @ sK103 @ X6)) | ($true != (in @ X6 @ sK102))) | ((in @ sK103 @ (setunion @ sK102)) != $true)) & (? [X7 : $i] : (($true = (in @ sK103 @ X7)) & ($true = (in @ X7 @ sK102))) | ((in @ sK103 @ (setunion @ sK102)) = $true)))),
% 1.73/1.23    introduced(definition,[],[choice_axiom])).
% 1.73/1.23  thf(f820,plain,(
% 1.73/1.23    ? [X7 : $i] : (($true = (in @ sK103 @ X7)) & ($true = (in @ X7 @ sK102))) => (($true = (in @ sK103 @ sK104)) & ((in @ sK104 @ sK102) = $true))),
% 1.73/1.23    introduced(definition,[],[choice_axiom])).
% 1.73/1.23  thf(f817,plain,(
% 1.73/1.23    (! [X0 : $i,X1 : $i] : ((((in @ X1 @ (setunion @ X0)) = $true) | ! [X2 : $i] : (((in @ X1 @ X2) != $true) | ((in @ X2 @ X0) != $true))) & (? [X3 : $i] : (((in @ X1 @ X3) = $true) & ((in @ X3 @ X0) = $true)) | ((in @ X1 @ (setunion @ X0)) != $true))) | (setunionAx != $true)) & ((setunionAx = $true) | ? [X4 : $i,X5 : $i] : ((! [X6 : $i] : (($true != (in @ X5 @ X6)) | ((in @ X6 @ X4) != $true)) | ((in @ X5 @ (setunion @ X4)) != $true)) & (? [X7 : $i] : (($true = (in @ X5 @ X7)) & ((in @ X7 @ X4) = $true)) | ((in @ X5 @ (setunion @ X4)) = $true))))),
% 1.73/1.23    inference(rectify,[status(thm)],[f816])).
% 1.73/1.23  thf(f816,plain,(
% 1.73/1.23    (! [X0 : $i,X1 : $i] : ((((in @ X1 @ (setunion @ X0)) = $true) | ! [X2 : $i] : (((in @ X1 @ X2) != $true) | ((in @ X2 @ X0) != $true))) & (? [X2 : $i] : (((in @ X1 @ X2) = $true) & ((in @ X2 @ X0) = $true)) | ((in @ X1 @ (setunion @ X0)) != $true))) | (setunionAx != $true)) & ((setunionAx = $true) | ? [X0 : $i,X1 : $i] : ((! [X2 : $i] : (((in @ X1 @ X2) != $true) | ((in @ X2 @ X0) != $true)) | ((in @ X1 @ (setunion @ X0)) != $true)) & (? [X2 : $i] : (((in @ X1 @ X2) = $true) & ((in @ X2 @ X0) = $true)) | ((in @ X1 @ (setunion @ X0)) = $true))))),
% 1.73/1.23    inference(nnf_transformation,[status(thm)],[f256])).
% 1.73/1.23  thf(f256,plain,(
% 1.73/1.23    ! [X0 : $i,X1 : $i] : (((in @ X1 @ (setunion @ X0)) = $true) <=> ? [X2 : $i] : (((in @ X1 @ X2) = $true) & ((in @ X2 @ X0) = $true))) <=> (setunionAx = $true)),
% 1.73/1.23    inference(fool_elimination,[status(thm)],[f255])).
% 1.73/1.23  thf(f255,plain,(
% 1.73/1.23    (setunionAx = ! [X0 : $i,X1 : $i] : ((in @ X1 @ (setunion @ X0)) <=> ? [X2 : $i] : ((in @ X2 @ X0) & (in @ X1 @ X2))))),
% 1.73/1.23    inference(rectify,[status(thm)],[f6])).
% 1.73/1.23  thf(f6,axiom,(
% 1.73/1.23    (setunionAx = ! [X3 : $i,X1 : $i] : ((in @ X1 @ (setunion @ X3)) <=> ? [X4 : $i] : ((in @ X4 @ X3) & (in @ X1 @ X4))))),
% 1.73/1.23    file('/export/starexec/sandbox2/tmp/tmp.9E07OigdIH/DTF2THF_24674.p',setunionAx)).
% 1.73/1.23  thf(f2361,plain,(
% 1.73/1.23    ( ! [X0 : $i] : (((in @ sK375 @ (sK101 @ X0 @ sK374)) != $true) | ((in @ X0 @ (setunion @ sK374)) != $true)) )),
% 1.73/1.23    inference(trivial_inequality_removal,[status(thm)],[f2360])).
% 1.73/1.23  thf(f2360,plain,(
% 1.73/1.23    ( ! [X0 : $i] : (($true != $true) | ((in @ sK375 @ (sK101 @ X0 @ sK374)) != $true) | ((in @ X0 @ (setunion @ sK374)) != $true)) )),
% 1.73/1.23    inference(forward_demodulation,[status(thm)],[f2247,f1884])).
% 1.73/1.23  thf(f2247,plain,(
% 1.73/1.23    ( ! [X0 : $i] : (((in @ X0 @ (setunion @ sK374)) != $true) | ((in @ sK375 @ (sK101 @ X0 @ sK374)) != $true) | (setunionAx != $true)) )),
% 1.73/1.23    inference(trivial_inequality_removal,[status(thm)],[f2189])).
% 1.73/1.23  thf(f2189,plain,(
% 1.73/1.23    ( ! [X0 : $i] : (($true != $true) | (setunionAx != $true) | ((in @ sK375 @ (sK101 @ X0 @ sK374)) != $true) | ((in @ X0 @ (setunion @ sK374)) != $true)) )),
% 1.73/1.23    inference(superposition,[status(thm)],[f1908,f1482])).
% 1.73/1.23  thf(f1482,plain,(
% 1.73/1.23    ( ! [X0 : $i,X1 : $i] : (((in @ (sK101 @ X1 @ X0) @ X0) = $true) | (setunionAx != $true) | ((in @ X1 @ (setunion @ X0)) != $true)) )),
% 1.73/1.23    inference(cnf_transformation,[status(thm)],[f821])).
% 1.73/1.23  thf(f1908,plain,(
% 1.73/1.23    ( ! [X2 : $i] : (($true != (in @ X2 @ sK374)) | ((in @ sK375 @ X2) != $true)) )),
% 1.73/1.23    inference(cnf_transformation,[status(thm)],[f1272])).
% 1.73/1.23  % SZS output end Proof for DTF2THF_24674
% 1.73/1.23  % (24970)------------------------------
% 1.73/1.23  % (24970)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.73/1.23  % (24970)Termination reason: Refutation
% 1.73/1.23  
% 1.73/1.23  % (24970)Memory used [KB]: 8443
% 1.73/1.23  % (24970)Time elapsed: 0.085 s
% 1.73/1.23  % (24970)Instructions burned: 270 (million)
% 1.73/1.23  % (24970)------------------------------
% 1.73/1.23  % (24970)------------------------------
% 1.73/1.23  % (24897)Success in time 0.158 s
%------------------------------------------------------------------------------