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DT2H2X---1.9.5.THM-Ref.s

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%------------------------------------------------------------------------------
% File     : DT2H2X---1.9.5
% Problem  : SEU704^2 : TPTP v9.2.1. Released v3.7.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : /export/starexec/sandbox/solver/bin/run_DT2H2X /export/starexec/sandbox/benchmark/theBenchmark.p 300

% Computer : n003.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 09:36:32 AM UTC 2026

% Result   : Theorem 1.66s 1.47s
% Output   : Refutation 1.66s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   25
%            Number of leaves      :   16
% Syntax   : Number of formulae    :  139 (  26 unt;   0 typ;   6 def)
%            Number of atoms       : 1722 ( 587 equ;  20 cnn)
%            Maximal formula atoms :   10 (  12 avg)
%            Number of connectives : 1522 ( 252   ~; 287   |; 249   &; 670   @)
%                                         (  12 <=>;  48  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   18 (   5 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   35 (  30 usr;  29 con; 0-2 aty)
%                                         (   0  !!;   4  ??;   0 @@+;   0 @@-)
%            Number of variables   :  283 (  87   ^; 152   !;  44   ?; 283   :)

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

thf(func_def_2,type,
    setadjoin: $i > $i > $i ).

thf(func_def_3,type,
    dsetconstr: $i > ( $i > $o ) > $i ).

thf(func_def_4,type,
    singleton: $i > $o ).

thf(func_def_41,type,
    ph21: 
      !>[X0: $tType] : X0 ).

thf(f606,plain,
    $false,
    inference(avatar_sat_refutation,[status(thm)],[f185,f193,f280,f414,f415,f544,f605]) ).

thf(f605,plain,
    ( spl20_7
    | ~ spl20_15 ),
    inference(avatar_contradiction_clause,[status(thm)],[f604]) ).

thf(f604,plain,
    ( $false
    | spl20_7
    | ~ spl20_15 ),
    inference(trivial_inequality_removal,[status(thm)],[f603]) ).

thf(f603,plain,
    ( ( $true = $false )
    | spl20_7
    | ~ spl20_15 ),
    inference(forward_demodulation,[status(thm)],[f602,f411]) ).

thf(f411,plain,
    ( ( sK12 = $false )
    | ~ spl20_15 ),
    inference(avatar_component_clause,[status(thm)],[f409]) ).

thf(f409,definition,
    ( spl20_15
  <=> ( sK12 = $false ) ),
    introduced(definition,[new_symbols(naming,[spl20_15])],[avatar_definition]) ).

thf(f602,plain,
    ( ( $true = sK12 )
    | spl20_7
    | ~ spl20_15 ),
    inference(subsumption_resolution,[status(thm)],[f581,f601]) ).

thf(f601,plain,
    ( ( sK15 = sK24 )
    | spl20_7
    | ~ spl20_15 ),
    inference(trivial_inequality_removal,[status(thm)],[f600]) ).

thf(f600,plain,
    ( ( $true = $false )
    | ( sK15 = sK24 )
    | spl20_7
    | ~ spl20_15 ),
    inference(forward_demodulation,[status(thm)],[f599,f411]) ).

thf(f599,plain,
    ( ( $true = sK12 )
    | ( sK15 = sK24 )
    | spl20_7 ),
    inference(duplicate_literal_removal,[status(thm)],[f598]) ).

thf(f598,plain,
    ( ( $true = sK12 )
    | ( sK15 = sK24 )
    | ( sK15 = sK24 )
    | spl20_7 ),
    inference(equality_proxy_clausification,[status(thm)],[f595]) ).

thf(f595,plain,
    ( ( $true
      = ( sK15 = sK24 ) )
    | ( sK15 = sK24 )
    | ( $true = sK12 )
    | spl20_7 ),
    inference(binary_proxy_clausification,[status(thm)],[f586]) ).

thf(f586,plain,
    ( ( sK15 = sK24 )
    | ( $true = sK12 )
    | ( $true
      = ( ~ sK12
        & ( sK15 = sK24 ) ) )
    | spl20_7 ),
    inference(binary_proxy_clausification,[status(thm)],[f585]) ).

thf(f585,plain,
    ( ( $true
      = ( ( sK14 = sK24 )
        & sK12 ) )
    | ( $true
      = ( ~ sK12
        & ( sK15 = sK24 ) ) )
    | ( sK15 = sK24 )
    | spl20_7 ),
    inference(binary_proxy_clausification,[status(thm)],[f584]) ).

thf(f584,plain,
    ( ( sK15 = sK24 )
    | ( $true
      = ( ( ~ sK12
          & ( sK15 = sK24 ) )
        | ( ( sK14 = sK24 )
          & sK12 ) ) )
    | spl20_7 ),
    inference(equality_proxy_clausification,[status(thm)],[f573]) ).

thf(f573,plain,
    ( ( $true
      = ( sK15 = sK24 ) )
    | ( $true
      = ( ( ~ sK12
          & ( sK15 = sK24 ) )
        | ( ( sK14 = sK24 )
          & sK12 ) ) )
    | spl20_7 ),
    inference(binary_proxy_clausification,[status(thm)],[f572]) ).

thf(f572,plain,
    ( ( ( sK15 = sK24 )
     != ( ( ~ sK12
          & ( sK15 = sK24 ) )
        | ( ( sK14 = sK24 )
          & sK12 ) ) )
    | spl20_7 ),
    inference(beta_eta_normalization,[status(thm)],[f571]) ).

thf(f571,plain,
    ( ( ( sK15 = sK24 )
     != ( ^ [Y0: $i] :
            ( ( ~ sK12
              & ( sK15 = Y0 ) )
            | ( ( sK14 = Y0 )
              & sK12 ) )
        @ sK24 ) )
    | spl20_7 ),
    inference(negative_extensionality,[status(thm)],[f189]) ).

thf(f189,plain,
    ( ( ( (=) @ sK15 )
     != ( ^ [Y0: $i] :
            ( ( ~ sK12
              & ( sK15 = Y0 ) )
            | ( ( sK14 = Y0 )
              & sK12 ) ) ) )
    | spl20_7 ),
    inference(avatar_component_clause,[status(thm)],[f187]) ).

thf(f187,definition,
    ( spl20_7
  <=> ( ( (=) @ sK15 )
      = ( ^ [Y0: $i] :
            ( ( ~ sK12
              & ( sK15 = Y0 ) )
            | ( ( sK14 = Y0 )
              & sK12 ) ) ) ) ),
    introduced(definition,[new_symbols(naming,[spl20_7])],[avatar_definition]) ).

thf(f581,plain,
    ( ( sK15 != sK24 )
    | ( $true = sK12 )
    | spl20_7 ),
    inference(duplicate_literal_removal,[status(thm)],[f580]) ).

thf(f580,plain,
    ( ( sK15 != sK24 )
    | ( $true = sK12 )
    | ( sK15 != sK24 )
    | spl20_7 ),
    inference(equality_proxy_clausification,[status(thm)],[f579]) ).

thf(f579,plain,
    ( ( ( sK15 = sK24 )
      = $false )
    | ( sK15 != sK24 )
    | ( $true = sK12 )
    | spl20_7 ),
    inference(not_proxy_clausification,[status(thm)],[f578]) ).

thf(f578,plain,
    ( ( sK15 != sK24 )
    | ( ( ~ sK12 ) = $false )
    | ( ( sK15 = sK24 )
      = $false )
    | spl20_7 ),
    inference(binary_proxy_clausification,[status(thm)],[f577]) ).

thf(f577,plain,
    ( ( sK15 != sK24 )
    | ( $false
      = ( ~ sK12
        & ( sK15 = sK24 ) ) )
    | spl20_7 ),
    inference(binary_proxy_clausification,[status(thm)],[f575]) ).

thf(f575,plain,
    ( ( sK15 != sK24 )
    | ( ( ( ~ sK12
          & ( sK15 = sK24 ) )
        | ( ( sK14 = sK24 )
          & sK12 ) )
      = $false )
    | spl20_7 ),
    inference(equality_proxy_clausification,[status(thm)],[f574]) ).

thf(f574,plain,
    ( ( ( sK15 = sK24 )
      = $false )
    | ( ( ( ~ sK12
          & ( sK15 = sK24 ) )
        | ( ( sK14 = sK24 )
          & sK12 ) )
      = $false )
    | spl20_7 ),
    inference(binary_proxy_clausification,[status(thm)],[f572]) ).

thf(f544,plain,
    ~ spl20_8,
    inference(avatar_contradiction_clause,[status(thm)],[f543]) ).

thf(f543,plain,
    ( $false
    | ~ spl20_8 ),
    inference(trivial_inequality_removal,[status(thm)],[f542]) ).

thf(f542,plain,
    ( ( $true = $false )
    | ~ spl20_8 ),
    inference(backward_demodulation,[status(thm)],[f198,f541]) ).

thf(f541,plain,
    ( ( ( in @ sK15 @ ( setadjoin @ sK15 @ emptyset ) )
      = $false )
    | ~ spl20_8 ),
    inference(equality_resolution,[status(thm)],[f192]) ).

thf(f192,plain,
    ( ! [X0: $i] :
        ( ( ( setadjoin @ sK15 @ emptyset )
         != ( setadjoin @ X0 @ emptyset ) )
        | ( ( in @ X0 @ ( setadjoin @ sK15 @ emptyset ) )
          = $false ) )
    | ~ spl20_8 ),
    inference(avatar_component_clause,[status(thm)],[f191]) ).

thf(f191,definition,
    ( spl20_8
  <=> ! [X0: $i] :
        ( ( ( setadjoin @ sK15 @ emptyset )
         != ( setadjoin @ X0 @ emptyset ) )
        | ( ( in @ X0 @ ( setadjoin @ sK15 @ emptyset ) )
          = $false ) ) ),
    introduced(definition,[new_symbols(naming,[spl20_8])],[avatar_definition]) ).

thf(f198,plain,
    ( $true
    = ( in @ sK15 @ ( setadjoin @ sK15 @ emptyset ) ) ),
    inference(forward_demodulation,[status(thm)],[f197,f132]) ).

thf(f132,plain,
    ( ( setadjoin @ sK15 @ emptyset )
    = ( dsetconstr @ sK13 @ ( (=) @ sK15 ) ) ),
    inference(trivial_inequality_removal,[status(thm)],[f131]) ).

thf(f131,plain,
    ( ( ( setadjoin @ sK15 @ emptyset )
      = ( dsetconstr @ sK13 @ ( (=) @ sK15 ) ) )
    | ( $true != $true ) ),
    inference(superposition,[status(thm)],[f129,f75]) ).

thf(f75,plain,
    ( $true
    = ( in @ sK15 @ sK13 ) ),
    inference(cnf_transformation,[status(thm)],[f50]) ).

thf(f50,plain,
    ( ( iffalseProp2 = $true )
    & ( iftrueProp1 = $true )
    & ( iftrueProp2 = $true )
    & ( $true
      = ( in @ sK15 @ sK13 ) )
    & ( $true
     != ( singleton
        @ ( dsetconstr @ sK13
          @ ^ [Y0: $i] :
              ( ( ~ sK12
                & ( sK15 = Y0 ) )
              | ( ( sK14 = Y0 )
                & sK12 ) ) ) ) )
    & ( $true
      = ( in @ sK14 @ sK13 ) )
    & ( iffalseProp1 = $true ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK12,sK13,sK14,sK15])],[f32,f49,f48]) ).

thf(f48,plain,
    ( ? [X0: $o,X1: $i,X2: $i] :
        ( ? [X3: $i] :
            ( ( $true
              = ( in @ X3 @ X1 ) )
            & ( $true
             != ( singleton
                @ ( dsetconstr @ X1
                  @ ^ [Y0: $i] :
                      ( ( ~ X0
                        & ( X3 = Y0 ) )
                      | ( ( X2 = Y0 )
                        & X0 ) ) ) ) ) )
        & ( $true
          = ( in @ X2 @ X1 ) ) )
   => ( ? [X3: $i] :
          ( ( $true
            = ( in @ X3 @ sK13 ) )
          & ( $true
           != ( singleton
              @ ( dsetconstr @ sK13
                @ ^ [Y0: $i] :
                    ( ( ~ sK12
                      & ( X3 = Y0 ) )
                    | ( ( sK14 = Y0 )
                      & sK12 ) ) ) ) ) )
      & ( $true
        = ( in @ sK14 @ sK13 ) ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f49,plain,
    ( ? [X3: $i] :
        ( ( $true
          = ( in @ X3 @ sK13 ) )
        & ( $true
         != ( singleton
            @ ( dsetconstr @ sK13
              @ ^ [Y0: $i] :
                  ( ( ~ sK12
                    & ( X3 = Y0 ) )
                  | ( ( sK14 = Y0 )
                    & sK12 ) ) ) ) ) )
   => ( ( $true
        = ( in @ sK15 @ sK13 ) )
      & ( $true
       != ( singleton
          @ ( dsetconstr @ sK13
            @ ^ [Y0: $i] :
                ( ( ~ sK12
                  & ( sK15 = Y0 ) )
                | ( ( sK14 = Y0 )
                  & sK12 ) ) ) ) ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f32,plain,
    ( ( iffalseProp2 = $true )
    & ( iftrueProp1 = $true )
    & ( iftrueProp2 = $true )
    & ? [X0: $o,X1: $i,X2: $i] :
        ( ? [X3: $i] :
            ( ( $true
              = ( in @ X3 @ X1 ) )
            & ( $true
             != ( singleton
                @ ( dsetconstr @ X1
                  @ ^ [Y0: $i] :
                      ( ( ~ X0
                        & ( X3 = Y0 ) )
                      | ( ( X2 = Y0 )
                        & X0 ) ) ) ) ) )
        & ( $true
          = ( in @ X2 @ X1 ) ) )
    & ( iffalseProp1 = $true ) ),
    inference(flattening,[status(thm)],[f31]) ).

thf(f31,plain,
    ( ? [X0: $o,X1: $i,X2: $i] :
        ( ? [X3: $i] :
            ( ( $true
              = ( in @ X3 @ X1 ) )
            & ( $true
             != ( singleton
                @ ( dsetconstr @ X1
                  @ ^ [Y0: $i] :
                      ( ( ~ X0
                        & ( X3 = Y0 ) )
                      | ( ( X2 = Y0 )
                        & X0 ) ) ) ) ) )
        & ( $true
          = ( in @ X2 @ X1 ) ) )
    & ( iftrueProp2 = $true )
    & ( iftrueProp1 = $true )
    & ( iffalseProp2 = $true )
    & ( iffalseProp1 = $true ) ),
    inference(ennf_transformation,[status(thm)],[f10]) ).

thf(f10,plain,
    ~ ( ( iffalseProp1 = $true )
     => ( ( iffalseProp2 = $true )
       => ( ( iftrueProp1 = $true )
         => ( ( iftrueProp2 = $true )
           => ! [X0: $o,X1: $i,X2: $i] :
                ( ( $true
                  = ( in @ X2 @ X1 ) )
               => ! [X3: $i] :
                    ( ( $true
                      = ( in @ X3 @ X1 ) )
                   => ( $true
                      = ( singleton
                        @ ( dsetconstr @ X1
                          @ ^ [Y0: $i] :
                              ( ( ~ X0
                                & ( X3 = Y0 ) )
                              | ( ( X2 = Y0 )
                                & X0 ) ) ) ) ) ) ) ) ) ) ),
    inference(fool_elimination,[status(thm)],[f9]) ).

thf(f9,plain,
    ~ ( iffalseProp1
     => ( iffalseProp2
       => ( iftrueProp1
         => ( iftrueProp2
           => ! [X0: $o,X1: $i,X2: $i] :
                ( ( in @ X2 @ X1 )
               => ! [X3: $i] :
                    ( ( in @ X3 @ X1 )
                   => ( singleton
                      @ ( dsetconstr @ X1
                        @ ^ [X4: $i] :
                            ( ( X0
                              & ( X2 = X4 ) )
                            | ( ( X3 = X4 )
                              & ~ X0 ) ) ) ) ) ) ) ) ) ),
    inference(rectify,[status(thm)],[f7]) ).

thf(f7,negated_conjecture,
    ~ ( iffalseProp1
     => ( iffalseProp2
       => ( iftrueProp1
         => ( iftrueProp2
           => ! [X2: $o,X0: $i,X1: $i] :
                ( ( in @ X1 @ X0 )
               => ! [X3: $i] :
                    ( ( in @ X3 @ X0 )
                   => ( singleton
                      @ ( dsetconstr @ X0
                        @ ^ [X4: $i] :
                            ( ( X2
                              & ( X1 = X4 ) )
                            | ( ( X3 = X4 )
                              & ~ X2 ) ) ) ) ) ) ) ) ) ),
    inference(negated_conjecture,[status(cth)],[f6]) ).

thf(f6,conjecture,
    ( iffalseProp1
   => ( iffalseProp2
     => ( iftrueProp1
       => ( iftrueProp2
         => ! [X2: $o,X0: $i,X1: $i] :
              ( ( in @ X1 @ X0 )
             => ! [X3: $i] :
                  ( ( in @ X3 @ X0 )
                 => ( singleton
                    @ ( dsetconstr @ X0
                      @ ^ [X4: $i] :
                          ( ( X2
                            & ( X1 = X4 ) )
                          | ( ( X3 = X4 )
                            & ~ X2 ) ) ) ) ) ) ) ) ) ),
    file('/export/starexec/sandbox/tmp/tmp.qbkje3dyq5/DTF2THF_25610.p',ifSingleton) ).

thf(f129,plain,
    ! [X0: $i] :
      ( ( $true
       != ( in @ X0 @ sK13 ) )
      | ( ( dsetconstr @ sK13 @ ( (=) @ X0 ) )
        = ( setadjoin @ X0 @ emptyset ) ) ),
    inference(trivial_inequality_removal,[status(thm)],[f127]) ).

thf(f127,plain,
    ! [X0: $i] :
      ( ( $true
       != ( in @ X0 @ sK13 ) )
      | ( $true != $true )
      | ( ( dsetconstr @ sK13 @ ( (=) @ X0 ) )
        = ( setadjoin @ X0 @ emptyset ) ) ),
    inference(superposition,[status(thm)],[f118,f75]) ).

thf(f118,plain,
    ! [X6: $i,X7: $i,X5: $i] :
      ( ( $true
       != ( in @ X7 @ X6 ) )
      | ( $true
       != ( in @ X5 @ X6 ) )
      | ( ( setadjoin @ X5 @ emptyset )
        = ( dsetconstr @ X6 @ ( (=) @ X5 ) ) ) ),
    inference(beta_eta_normalization,[status(thm)],[f117]) ).

thf(f117,plain,
    ! [X6: $i,X7: $i,X5: $i] :
      ( ( $true
       != ( in @ X5 @ X6 ) )
      | ( ( setadjoin @ X5 @ emptyset )
        = ( dsetconstr @ X6
          @ ^ [Y0: $i] : ( X5 = Y0 ) ) )
      | ( $true
       != ( in @ X7 @ X6 ) ) ),
    inference(boolean_simplification,[status(thm)],[f116]) ).

thf(f116,plain,
    ! [X6: $i,X7: $i,X5: $i] :
      ( ( $true
       != ( in @ X7 @ X6 ) )
      | ( $true
       != ( in @ X5 @ X6 ) )
      | ( ( setadjoin @ X5 @ emptyset )
        = ( dsetconstr @ X6
          @ ^ [Y0: $i] :
              ( $true
              & ( X5 = Y0 ) ) ) ) ),
    inference(boolean_simplification,[status(thm)],[f115]) ).

thf(f115,plain,
    ! [X6: $i,X7: $i,X5: $i] :
      ( ( $true
       != ( in @ X5 @ X6 ) )
      | ( $true
       != ( in @ X7 @ X6 ) )
      | ( ( dsetconstr @ X6
          @ ^ [Y0: $i] :
              ( ( $true
                & ( X5 = Y0 ) )
              | $false ) )
        = ( setadjoin @ X5 @ emptyset ) ) ),
    inference(boolean_simplification,[status(thm)],[f114]) ).

thf(f114,plain,
    ! [X6: $i,X7: $i,X5: $i] :
      ( ( $true
       != ( in @ X5 @ X6 ) )
      | ( ( setadjoin @ X5 @ emptyset )
        = ( dsetconstr @ X6
          @ ^ [Y0: $i] :
              ( ( $true
                & ( X5 = Y0 ) )
              | ( $false
                & ( X7 = Y0 ) ) ) ) )
      | ( $true
       != ( in @ X7 @ X6 ) ) ),
    inference(boolean_simplification,[status(thm)],[f113]) ).

thf(f113,plain,
    ! [X6: $i,X7: $i,X5: $i] :
      ( ( ( dsetconstr @ X6
          @ ^ [Y0: $i] :
              ( ( $true
                & ( X5 = Y0 ) )
              | ( ~ $true
                & ( X7 = Y0 ) ) ) )
        = ( setadjoin @ X5 @ emptyset ) )
      | ( $true
       != ( in @ X5 @ X6 ) )
      | ( $true
       != ( in @ X7 @ X6 ) ) ),
    inference(trivial_inequality_removal,[status(thm)],[f106]) ).

thf(f106,plain,
    ! [X6: $i,X7: $i,X5: $i] :
      ( ( $true
       != ( in @ X5 @ X6 ) )
      | ( ( dsetconstr @ X6
          @ ^ [Y0: $i] :
              ( ( $true
                & ( X5 = Y0 ) )
              | ( ~ $true
                & ( X7 = Y0 ) ) ) )
        = ( setadjoin @ X5 @ emptyset ) )
      | ( $true != $true )
      | ( $true
       != ( in @ X7 @ X6 ) ) ),
    inference(equality_resolution,[status(thm)],[f104]) ).

thf(f104,plain,
    ! [X6: $i,X7: $i,X4: $o,X5: $i] :
      ( ( $true
       != ( in @ X5 @ X6 ) )
      | ( $true != X4 )
      | ( $true
       != ( in @ X7 @ X6 ) )
      | ( ( setadjoin @ X5 @ emptyset )
        = ( dsetconstr @ X6
          @ ^ [Y0: $i] :
              ( ( X4
                & ( X5 = Y0 ) )
              | ( ~ X4
                & ( X7 = Y0 ) ) ) ) )
      | ( $true != $true ) ),
    inference(definition_unfolding,[status(thm)],[f79,f76]) ).

thf(f76,plain,
    iftrueProp2 = $true,
    inference(cnf_transformation,[status(thm)],[f50]) ).

thf(f79,plain,
    ! [X6: $i,X7: $i,X4: $o,X5: $i] :
      ( ( $true
       != ( in @ X5 @ X6 ) )
      | ( $true != X4 )
      | ( $true
       != ( in @ X7 @ X6 ) )
      | ( ( setadjoin @ X5 @ emptyset )
        = ( dsetconstr @ X6
          @ ^ [Y0: $i] :
              ( ( X4
                & ( X5 = Y0 ) )
              | ( ~ X4
                & ( X7 = Y0 ) ) ) ) )
      | ( iftrueProp2 != $true ) ),
    inference(cnf_transformation,[status(thm)],[f55]) ).

thf(f55,plain,
    ( ( ( iftrueProp2 = $true )
      | ( ( $true
          = ( in @ sK17 @ sK18 ) )
        & ( sK16 = $true )
        & ( $true
          = ( in @ sK19 @ sK18 ) )
        & ( ( dsetconstr @ sK18
            @ ^ [Y0: $i] :
                ( ( sK16
                  & ( sK17 = Y0 ) )
                | ( ~ sK16
                  & ( sK19 = Y0 ) ) ) )
         != ( setadjoin @ sK17 @ emptyset ) ) ) )
    & ( ! [X4: $o,X5: $i,X6: $i] :
          ( ( $true
           != ( in @ X5 @ X6 ) )
          | ! [X7: $i] :
              ( ( $true != X4 )
              | ( $true
               != ( in @ X7 @ X6 ) )
              | ( ( setadjoin @ X5 @ emptyset )
                = ( dsetconstr @ X6
                  @ ^ [Y0: $i] :
                      ( ( X4
                        & ( X5 = Y0 ) )
                      | ( ~ X4
                        & ( X7 = Y0 ) ) ) ) ) ) )
      | ( iftrueProp2 != $true ) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK16,sK17,sK18,sK19])],[f52,f54,f53]) ).

thf(f53,plain,
    ( ? [X0: $o,X1: $i,X2: $i] :
        ( ( $true
          = ( in @ X1 @ X2 ) )
        & ? [X3: $i] :
            ( ( $true = X0 )
            & ( $true
              = ( in @ X3 @ X2 ) )
            & ( ( setadjoin @ X1 @ emptyset )
             != ( dsetconstr @ X2
                @ ^ [Y0: $i] :
                    ( ( X0
                      & ( X1 = Y0 ) )
                    | ( ~ X0
                      & ( X3 = Y0 ) ) ) ) ) ) )
   => ( ( $true
        = ( in @ sK17 @ sK18 ) )
      & ? [X3: $i] :
          ( ( sK16 = $true )
          & ( $true
            = ( in @ X3 @ sK18 ) )
          & ( ( dsetconstr @ sK18
              @ ^ [Y0: $i] :
                  ( ( sK16
                    & ( sK17 = Y0 ) )
                  | ( ~ sK16
                    & ( X3 = Y0 ) ) ) )
           != ( setadjoin @ sK17 @ emptyset ) ) ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f54,plain,
    ( ? [X3: $i] :
        ( ( sK16 = $true )
        & ( $true
          = ( in @ X3 @ sK18 ) )
        & ( ( dsetconstr @ sK18
            @ ^ [Y0: $i] :
                ( ( sK16
                  & ( sK17 = Y0 ) )
                | ( ~ sK16
                  & ( X3 = Y0 ) ) ) )
         != ( setadjoin @ sK17 @ emptyset ) ) )
   => ( ( sK16 = $true )
      & ( $true
        = ( in @ sK19 @ sK18 ) )
      & ( ( dsetconstr @ sK18
          @ ^ [Y0: $i] :
              ( ( sK16
                & ( sK17 = Y0 ) )
              | ( ~ sK16
                & ( sK19 = Y0 ) ) ) )
       != ( setadjoin @ sK17 @ emptyset ) ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f52,plain,
    ( ( ( iftrueProp2 = $true )
      | ? [X0: $o,X1: $i,X2: $i] :
          ( ( $true
            = ( in @ X1 @ X2 ) )
          & ? [X3: $i] :
              ( ( $true = X0 )
              & ( $true
                = ( in @ X3 @ X2 ) )
              & ( ( setadjoin @ X1 @ emptyset )
               != ( dsetconstr @ X2
                  @ ^ [Y0: $i] :
                      ( ( X0
                        & ( X1 = Y0 ) )
                      | ( ~ X0
                        & ( X3 = Y0 ) ) ) ) ) ) ) )
    & ( ! [X4: $o,X5: $i,X6: $i] :
          ( ( $true
           != ( in @ X5 @ X6 ) )
          | ! [X7: $i] :
              ( ( $true != X4 )
              | ( $true
               != ( in @ X7 @ X6 ) )
              | ( ( setadjoin @ X5 @ emptyset )
                = ( dsetconstr @ X6
                  @ ^ [Y0: $i] :
                      ( ( X4
                        & ( X5 = Y0 ) )
                      | ( ~ X4
                        & ( X7 = Y0 ) ) ) ) ) ) )
      | ( iftrueProp2 != $true ) ) ),
    inference(rectify,[status(thm)],[f51]) ).

thf(f51,plain,
    ( ( ( iftrueProp2 = $true )
      | ? [X0: $o,X1: $i,X2: $i] :
          ( ( $true
            = ( in @ X1 @ X2 ) )
          & ? [X3: $i] :
              ( ( $true = X0 )
              & ( $true
                = ( in @ X3 @ X2 ) )
              & ( ( setadjoin @ X1 @ emptyset )
               != ( dsetconstr @ X2
                  @ ^ [Y0: $i] :
                      ( ( X0
                        & ( X1 = Y0 ) )
                      | ( ~ X0
                        & ( X3 = Y0 ) ) ) ) ) ) ) )
    & ( ! [X0: $o,X1: $i,X2: $i] :
          ( ( $true
           != ( in @ X1 @ X2 ) )
          | ! [X3: $i] :
              ( ( $true != X0 )
              | ( $true
               != ( in @ X3 @ X2 ) )
              | ( ( setadjoin @ X1 @ emptyset )
                = ( dsetconstr @ X2
                  @ ^ [Y0: $i] :
                      ( ( X0
                        & ( X1 = Y0 ) )
                      | ( ~ X0
                        & ( X3 = Y0 ) ) ) ) ) ) )
      | ( iftrueProp2 != $true ) ) ),
    inference(nnf_transformation,[status(thm)],[f28]) ).

thf(f28,plain,
    ( ( iftrueProp2 = $true )
  <=> ! [X0: $o,X1: $i,X2: $i] :
        ( ( $true
         != ( in @ X1 @ X2 ) )
        | ! [X3: $i] :
            ( ( $true != X0 )
            | ( $true
             != ( in @ X3 @ X2 ) )
            | ( ( setadjoin @ X1 @ emptyset )
              = ( dsetconstr @ X2
                @ ^ [Y0: $i] :
                    ( ( X0
                      & ( X1 = Y0 ) )
                    | ( ~ X0
                      & ( X3 = Y0 ) ) ) ) ) ) ) ),
    inference(flattening,[status(thm)],[f27]) ).

thf(f27,plain,
    ( ( iftrueProp2 = $true )
  <=> ! [X0: $o,X1: $i,X2: $i] :
        ( ! [X3: $i] :
            ( ( ( setadjoin @ X1 @ emptyset )
              = ( dsetconstr @ X2
                @ ^ [Y0: $i] :
                    ( ( X0
                      & ( X1 = Y0 ) )
                    | ( ~ X0
                      & ( X3 = Y0 ) ) ) ) )
            | ( $true != X0 )
            | ( $true
             != ( in @ X3 @ X2 ) ) )
        | ( $true
         != ( in @ X1 @ X2 ) ) ) ),
    inference(ennf_transformation,[status(thm)],[f14]) ).

thf(f14,plain,
    ( ( iftrueProp2 = $true )
  <=> ! [X0: $o,X1: $i,X2: $i] :
        ( ( $true
          = ( in @ X1 @ X2 ) )
       => ! [X3: $i] :
            ( ( $true
              = ( in @ X3 @ X2 ) )
           => ( ( $true = X0 )
             => ( ( setadjoin @ X1 @ emptyset )
                = ( dsetconstr @ X2
                  @ ^ [Y0: $i] :
                      ( ( X0
                        & ( X1 = Y0 ) )
                      | ( ~ X0
                        & ( X3 = Y0 ) ) ) ) ) ) ) ) ),
    inference(fool_elimination,[status(thm)],[f13]) ).

thf(f13,plain,
    ! [X0: $o,X1: $i,X2: $i] :
      ( ( ( in @ X1 @ X2 )
       => ! [X3: $i] :
            ( ( in @ X3 @ X2 )
           => ( X0
             => ( ( dsetconstr @ X2
                  @ ^ [X4: $i] :
                      ( ( ( X3 = X4 )
                        & ~ X0 )
                      | ( ( X1 = X4 )
                        & X0 ) ) )
                = ( setadjoin @ X1 @ emptyset ) ) ) ) )
      = iftrueProp2 ),
    inference(rectify,[status(thm)],[f5]) ).

thf(f5,axiom,
    ! [X2: $o,X1: $i,X0: $i] :
      ( ( ( in @ X1 @ X0 )
       => ! [X3: $i] :
            ( ( in @ X3 @ X0 )
           => ( X2
             => ( ( dsetconstr @ X0
                  @ ^ [X4: $i] :
                      ( ( ( X3 = X4 )
                        & ~ X2 )
                      | ( ( X1 = X4 )
                        & X2 ) ) )
                = ( setadjoin @ X1 @ emptyset ) ) ) ) )
      = iftrueProp2 ),
    file('/export/starexec/sandbox/tmp/tmp.qbkje3dyq5/DTF2THF_25610.p',iftrueProp2) ).

thf(f197,plain,
    ( $true
    = ( in @ sK15 @ ( dsetconstr @ sK13 @ ( (=) @ sK15 ) ) ) ),
    inference(trivial_inequality_removal,[status(thm)],[f195]) ).

thf(f195,plain,
    ( ( $true != $true )
    | ( $true
      = ( in @ sK15 @ ( dsetconstr @ sK13 @ ( (=) @ sK15 ) ) ) ) ),
    inference(superposition,[status(thm)],[f137,f75]) ).

thf(f137,plain,
    ! [X0: $i] :
      ( ( $true
       != ( in @ X0 @ sK13 ) )
      | ( $true
        = ( in @ X0 @ ( dsetconstr @ sK13 @ ( (=) @ X0 ) ) ) ) ),
    inference(trivial_inequality_removal,[status(thm)],[f135]) ).

thf(f135,plain,
    ! [X0: $i] :
      ( ( $true
        = ( in @ X0 @ ( dsetconstr @ sK13 @ ( (=) @ X0 ) ) ) )
      | ( $true != $true )
      | ( $true
       != ( in @ X0 @ sK13 ) ) ),
    inference(superposition,[status(thm)],[f125,f75]) ).

thf(f125,plain,
    ! [X2: $i,X3: $i,X1: $i] :
      ( ( $true
       != ( in @ X3 @ X1 ) )
      | ( $true
       != ( in @ X2 @ X1 ) )
      | ( $true
        = ( in @ X2 @ ( dsetconstr @ X1 @ ( (=) @ X2 ) ) ) ) ),
    inference(beta_eta_normalization,[status(thm)],[f124]) ).

thf(f124,plain,
    ! [X2: $i,X3: $i,X1: $i] :
      ( ( $true
       != ( in @ X2 @ X1 ) )
      | ( $true
       != ( in @ X3 @ X1 ) )
      | ( $true
        = ( in @ X2
          @ ( dsetconstr @ X1
            @ ^ [Y0: $i] : ( X2 = Y0 ) ) ) ) ),
    inference(boolean_simplification,[status(thm)],[f123]) ).

thf(f123,plain,
    ! [X2: $i,X3: $i,X1: $i] :
      ( ( $true
        = ( in @ X2
          @ ( dsetconstr @ X1
            @ ^ [Y0: $i] :
                ( $true
                & ( X2 = Y0 ) ) ) ) )
      | ( $true
       != ( in @ X2 @ X1 ) )
      | ( $true
       != ( in @ X3 @ X1 ) ) ),
    inference(boolean_simplification,[status(thm)],[f122]) ).

thf(f122,plain,
    ! [X2: $i,X3: $i,X1: $i] :
      ( ( $true
       != ( in @ X3 @ X1 ) )
      | ( $true
       != ( in @ X2 @ X1 ) )
      | ( $true
        = ( in @ X2
          @ ( dsetconstr @ X1
            @ ^ [Y0: $i] :
                ( ( $true
                  & ( X2 = Y0 ) )
                | $false ) ) ) ) ),
    inference(boolean_simplification,[status(thm)],[f121]) ).

thf(f121,plain,
    ! [X2: $i,X3: $i,X1: $i] :
      ( ( $true
        = ( in @ X2
          @ ( dsetconstr @ X1
            @ ^ [Y0: $i] :
                ( ( $true
                  & ( X2 = Y0 ) )
                | ( ( X3 = Y0 )
                  & $false ) ) ) ) )
      | ( $true
       != ( in @ X2 @ X1 ) )
      | ( $true
       != ( in @ X3 @ X1 ) ) ),
    inference(boolean_simplification,[status(thm)],[f120]) ).

thf(f120,plain,
    ! [X2: $i,X3: $i,X1: $i] :
      ( ( $true
       != ( in @ X2 @ X1 ) )
      | ( $true
        = ( in @ X2
          @ ( dsetconstr @ X1
            @ ^ [Y0: $i] :
                ( ( $true
                  & ( X2 = Y0 ) )
                | ( ( X3 = Y0 )
                  & ~ $true ) ) ) ) )
      | ( $true
       != ( in @ X3 @ X1 ) ) ),
    inference(trivial_inequality_removal,[status(thm)],[f105]) ).

thf(f105,plain,
    ! [X2: $i,X3: $i,X1: $i] :
      ( ( $true
       != ( in @ X3 @ X1 ) )
      | ( $true != $true )
      | ( $true
       != ( in @ X2 @ X1 ) )
      | ( $true
        = ( in @ X2
          @ ( dsetconstr @ X1
            @ ^ [Y0: $i] :
                ( ( $true
                  & ( X2 = Y0 ) )
                | ( ( X3 = Y0 )
                  & ~ $true ) ) ) ) ) ),
    inference(equality_resolution,[status(thm)],[f94]) ).

thf(f94,plain,
    ! [X2: $i,X3: $i,X0: $o,X1: $i] :
      ( ( $true
       != ( in @ X2 @ X1 ) )
      | ( $true != X0 )
      | ( $true
       != ( in @ X3 @ X1 ) )
      | ( $true
        = ( in @ X2
          @ ( dsetconstr @ X1
            @ ^ [Y0: $i] :
                ( ( X0
                  & ( X2 = Y0 ) )
                | ( ( X3 = Y0 )
                  & ~ X0 ) ) ) ) )
      | ( $true != $true ) ),
    inference(definition_unfolding,[status(thm)],[f71,f77]) ).

thf(f77,plain,
    iftrueProp1 = $true,
    inference(cnf_transformation,[status(thm)],[f50]) ).

thf(f71,plain,
    ! [X2: $i,X3: $i,X0: $o,X1: $i] :
      ( ( $true
       != ( in @ X2 @ X1 ) )
      | ( $true != X0 )
      | ( $true
       != ( in @ X3 @ X1 ) )
      | ( $true
        = ( in @ X2
          @ ( dsetconstr @ X1
            @ ^ [Y0: $i] :
                ( ( X0
                  & ( X2 = Y0 ) )
                | ( ( X3 = Y0 )
                  & ~ X0 ) ) ) ) )
      | ( iftrueProp1 != $true ) ),
    inference(cnf_transformation,[status(thm)],[f47]) ).

thf(f47,plain,
    ( ( ! [X0: $o,X1: $i,X2: $i] :
          ( ( $true
           != ( in @ X2 @ X1 ) )
          | ! [X3: $i] :
              ( ( $true != X0 )
              | ( $true
               != ( in @ X3 @ X1 ) )
              | ( $true
                = ( in @ X2
                  @ ( dsetconstr @ X1
                    @ ^ [Y0: $i] :
                        ( ( X0
                          & ( X2 = Y0 ) )
                        | ( ( X3 = Y0 )
                          & ~ X0 ) ) ) ) ) ) )
      | ( iftrueProp1 != $true ) )
    & ( ( iftrueProp1 = $true )
      | ( ( $true
          = ( in @ sK10 @ sK9 ) )
        & ( $true = sK8 )
        & ( $true
          = ( in @ sK11 @ sK9 ) )
        & ( $true
         != ( in @ sK10
            @ ( dsetconstr @ sK9
              @ ^ [Y0: $i] :
                  ( ( sK8
                    & ( sK10 = Y0 ) )
                  | ( ( sK11 = Y0 )
                    & ~ sK8 ) ) ) ) ) ) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK8,sK9,sK10,sK11])],[f44,f46,f45]) ).

thf(f45,plain,
    ( ? [X4: $o,X5: $i,X6: $i] :
        ( ( ( in @ X6 @ X5 )
          = $true )
        & ? [X7: $i] :
            ( ( $true = X4 )
            & ( $true
              = ( in @ X7 @ X5 ) )
            & ( $true
             != ( in @ X6
                @ ( dsetconstr @ X5
                  @ ^ [Y0: $i] :
                      ( ( X4
                        & ( X6 = Y0 ) )
                      | ( ( X7 = Y0 )
                        & ~ X4 ) ) ) ) ) ) )
   => ( ( $true
        = ( in @ sK10 @ sK9 ) )
      & ? [X7: $i] :
          ( ( $true = sK8 )
          & ( ( in @ X7 @ sK9 )
            = $true )
          & ( $true
           != ( in @ sK10
              @ ( dsetconstr @ sK9
                @ ^ [Y0: $i] :
                    ( ( sK8
                      & ( sK10 = Y0 ) )
                    | ( ( X7 = Y0 )
                      & ~ sK8 ) ) ) ) ) ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f46,plain,
    ( ? [X7: $i] :
        ( ( $true = sK8 )
        & ( ( in @ X7 @ sK9 )
          = $true )
        & ( $true
         != ( in @ sK10
            @ ( dsetconstr @ sK9
              @ ^ [Y0: $i] :
                  ( ( sK8
                    & ( sK10 = Y0 ) )
                  | ( ( X7 = Y0 )
                    & ~ sK8 ) ) ) ) ) )
   => ( ( $true = sK8 )
      & ( $true
        = ( in @ sK11 @ sK9 ) )
      & ( $true
       != ( in @ sK10
          @ ( dsetconstr @ sK9
            @ ^ [Y0: $i] :
                ( ( sK8
                  & ( sK10 = Y0 ) )
                | ( ( sK11 = Y0 )
                  & ~ sK8 ) ) ) ) ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f44,plain,
    ( ( ! [X0: $o,X1: $i,X2: $i] :
          ( ( $true
           != ( in @ X2 @ X1 ) )
          | ! [X3: $i] :
              ( ( $true != X0 )
              | ( $true
               != ( in @ X3 @ X1 ) )
              | ( $true
                = ( in @ X2
                  @ ( dsetconstr @ X1
                    @ ^ [Y0: $i] :
                        ( ( X0
                          & ( X2 = Y0 ) )
                        | ( ( X3 = Y0 )
                          & ~ X0 ) ) ) ) ) ) )
      | ( iftrueProp1 != $true ) )
    & ( ( iftrueProp1 = $true )
      | ? [X4: $o,X5: $i,X6: $i] :
          ( ( ( in @ X6 @ X5 )
            = $true )
          & ? [X7: $i] :
              ( ( $true = X4 )
              & ( $true
                = ( in @ X7 @ X5 ) )
              & ( $true
               != ( in @ X6
                  @ ( dsetconstr @ X5
                    @ ^ [Y0: $i] :
                        ( ( X4
                          & ( X6 = Y0 ) )
                        | ( ( X7 = Y0 )
                          & ~ X4 ) ) ) ) ) ) ) ) ),
    inference(rectify,[status(thm)],[f43]) ).

thf(f43,plain,
    ( ( ! [X0: $o,X1: $i,X2: $i] :
          ( ( $true
           != ( in @ X2 @ X1 ) )
          | ! [X3: $i] :
              ( ( $true != X0 )
              | ( $true
               != ( in @ X3 @ X1 ) )
              | ( $true
                = ( in @ X2
                  @ ( dsetconstr @ X1
                    @ ^ [Y0: $i] :
                        ( ( X0
                          & ( X2 = Y0 ) )
                        | ( ( X3 = Y0 )
                          & ~ X0 ) ) ) ) ) ) )
      | ( iftrueProp1 != $true ) )
    & ( ( iftrueProp1 = $true )
      | ? [X0: $o,X1: $i,X2: $i] :
          ( ( $true
            = ( in @ X2 @ X1 ) )
          & ? [X3: $i] :
              ( ( $true = X0 )
              & ( $true
                = ( in @ X3 @ X1 ) )
              & ( $true
               != ( in @ X2
                  @ ( dsetconstr @ X1
                    @ ^ [Y0: $i] :
                        ( ( X0
                          & ( X2 = Y0 ) )
                        | ( ( X3 = Y0 )
                          & ~ X0 ) ) ) ) ) ) ) ) ),
    inference(nnf_transformation,[status(thm)],[f30]) ).

thf(f30,plain,
    ( ! [X0: $o,X1: $i,X2: $i] :
        ( ( $true
         != ( in @ X2 @ X1 ) )
        | ! [X3: $i] :
            ( ( $true != X0 )
            | ( $true
             != ( in @ X3 @ X1 ) )
            | ( $true
              = ( in @ X2
                @ ( dsetconstr @ X1
                  @ ^ [Y0: $i] :
                      ( ( X0
                        & ( X2 = Y0 ) )
                      | ( ( X3 = Y0 )
                        & ~ X0 ) ) ) ) ) ) )
  <=> ( iftrueProp1 = $true ) ),
    inference(flattening,[status(thm)],[f29]) ).

thf(f29,plain,
    ( ( iftrueProp1 = $true )
  <=> ! [X0: $o,X1: $i,X2: $i] :
        ( ! [X3: $i] :
            ( ( $true
              = ( in @ X2
                @ ( dsetconstr @ X1
                  @ ^ [Y0: $i] :
                      ( ( X0
                        & ( X2 = Y0 ) )
                      | ( ( X3 = Y0 )
                        & ~ X0 ) ) ) ) )
            | ( $true != X0 )
            | ( $true
             != ( in @ X3 @ X1 ) ) )
        | ( $true
         != ( in @ X2 @ X1 ) ) ) ),
    inference(ennf_transformation,[status(thm)],[f18]) ).

thf(f18,plain,
    ( ( iftrueProp1 = $true )
  <=> ! [X0: $o,X1: $i,X2: $i] :
        ( ( $true
          = ( in @ X2 @ X1 ) )
       => ! [X3: $i] :
            ( ( $true
              = ( in @ X3 @ X1 ) )
           => ( ( $true = X0 )
             => ( $true
                = ( in @ X2
                  @ ( dsetconstr @ X1
                    @ ^ [Y0: $i] :
                        ( ( X0
                          & ( X2 = Y0 ) )
                        | ( ( X3 = Y0 )
                          & ~ X0 ) ) ) ) ) ) ) ) ),
    inference(fool_elimination,[status(thm)],[f17]) ).

thf(f17,plain,
    ! [X0: $o,X1: $i,X2: $i] :
      ( ( ( in @ X2 @ X1 )
       => ! [X3: $i] :
            ( ( in @ X3 @ X1 )
           => ( X0
             => ( in @ X2
                @ ( dsetconstr @ X1
                  @ ^ [X4: $i] :
                      ( ( ~ X0
                        & ( X3 = X4 ) )
                      | ( ( X2 = X4 )
                        & X0 ) ) ) ) ) ) )
      = iftrueProp1 ),
    inference(rectify,[status(thm)],[f4]) ).

thf(f4,axiom,
    ! [X2: $o,X0: $i,X1: $i] :
      ( ( ( in @ X1 @ X0 )
       => ! [X3: $i] :
            ( ( in @ X3 @ X0 )
           => ( X2
             => ( in @ X1
                @ ( dsetconstr @ X0
                  @ ^ [X4: $i] :
                      ( ( ~ X2
                        & ( X3 = X4 ) )
                      | ( ( X1 = X4 )
                        & X2 ) ) ) ) ) ) )
      = iftrueProp1 ),
    file('/export/starexec/sandbox/tmp/tmp.qbkje3dyq5/DTF2THF_25610.p',iftrueProp1) ).

thf(f415,plain,
    ( ~ spl20_12
    | spl20_15
    | spl20_5 ),
    inference(avatar_split_clause,[status(thm)],[f379,f179,f409,f396]) ).

thf(f396,definition,
    ( spl20_12
  <=> ( sK23 = sK14 ) ),
    introduced(definition,[new_symbols(naming,[spl20_12])],[avatar_definition]) ).

thf(f179,definition,
    ( spl20_5
  <=> ( ( ^ [Y0: $i] :
            ( ( ~ sK12
              & ( sK15 = Y0 ) )
            | ( ( sK14 = Y0 )
              & sK12 ) ) )
      = ( (=) @ sK14 ) ) ),
    introduced(definition,[new_symbols(naming,[spl20_5])],[avatar_definition]) ).

thf(f379,plain,
    ( ( sK23 != sK14 )
    | ( sK12 = $false )
    | spl20_5 ),
    inference(duplicate_literal_removal,[status(thm)],[f378]) ).

thf(f378,plain,
    ( ( sK23 != sK14 )
    | ( sK23 != sK14 )
    | ( sK12 = $false )
    | spl20_5 ),
    inference(equality_proxy_clausification,[status(thm)],[f377]) ).

thf(f377,plain,
    ( ( sK12 = $false )
    | ( sK23 != sK14 )
    | ( ( sK14 = sK23 )
      = $false )
    | spl20_5 ),
    inference(binary_proxy_clausification,[status(thm)],[f376]) ).

thf(f376,plain,
    ( ( ( ( sK14 = sK23 )
        & sK12 )
      = $false )
    | ( sK23 != sK14 )
    | spl20_5 ),
    inference(equality_proxy_clausification,[status(thm)],[f370]) ).

thf(f370,plain,
    ( ( ( sK14 = sK23 )
      = $false )
    | ( ( ( sK14 = sK23 )
        & sK12 )
      = $false )
    | spl20_5 ),
    inference(binary_proxy_clausification,[status(thm)],[f369]) ).

thf(f369,plain,
    ( ( $false
      = ( ( ~ sK12
          & ( sK15 = sK23 ) )
        | ( ( sK14 = sK23 )
          & sK12 ) ) )
    | ( ( sK14 = sK23 )
      = $false )
    | spl20_5 ),
    inference(binary_proxy_clausification,[status(thm)],[f367]) ).

thf(f367,plain,
    ( ( ( sK14 = sK23 )
     != ( ( ~ sK12
          & ( sK15 = sK23 ) )
        | ( ( sK14 = sK23 )
          & sK12 ) ) )
    | spl20_5 ),
    inference(beta_eta_normalization,[status(thm)],[f366]) ).

thf(f366,plain,
    ( ( ( ^ [Y0: $i] :
            ( ( ~ sK12
              & ( sK15 = Y0 ) )
            | ( ( sK14 = Y0 )
              & sK12 ) )
        @ sK23 )
     != ( sK14 = sK23 ) )
    | spl20_5 ),
    inference(negative_extensionality,[status(thm)],[f181]) ).

thf(f181,plain,
    ( ( ( ^ [Y0: $i] :
            ( ( ~ sK12
              & ( sK15 = Y0 ) )
            | ( ( sK14 = Y0 )
              & sK12 ) ) )
     != ( (=) @ sK14 ) )
    | spl20_5 ),
    inference(avatar_component_clause,[status(thm)],[f179]) ).

thf(f414,plain,
    ( spl20_15
    | spl20_12
    | spl20_5 ),
    inference(avatar_split_clause,[status(thm)],[f387,f179,f396,f409]) ).

thf(f387,plain,
    ( ( sK12 = $false )
    | ( sK23 = sK14 )
    | spl20_5 ),
    inference(not_proxy_clausification,[status(thm)],[f386]) ).

thf(f386,plain,
    ( ( $true = ( ~ sK12 ) )
    | ( sK23 = sK14 )
    | spl20_5 ),
    inference(binary_proxy_clausification,[status(thm)],[f384]) ).

thf(f384,plain,
    ( ( sK23 = sK14 )
    | ( $true
      = ( ~ sK12
        & ( sK15 = sK23 ) ) )
    | spl20_5 ),
    inference(equality_proxy_clausification,[status(thm)],[f383]) ).

thf(f383,plain,
    ( ( $true
      = ( sK14 = sK23 ) )
    | ( $true
      = ( ~ sK12
        & ( sK15 = sK23 ) ) )
    | spl20_5 ),
    inference(duplicate_literal_removal,[status(thm)],[f382]) ).

thf(f382,plain,
    ( ( $true
      = ( sK14 = sK23 ) )
    | ( $true
      = ( ~ sK12
        & ( sK15 = sK23 ) ) )
    | ( $true
      = ( sK14 = sK23 ) )
    | spl20_5 ),
    inference(binary_proxy_clausification,[status(thm)],[f380]) ).

thf(f380,plain,
    ( ( $true
      = ( ( sK14 = sK23 )
        & sK12 ) )
    | ( $true
      = ( ~ sK12
        & ( sK15 = sK23 ) ) )
    | ( $true
      = ( sK14 = sK23 ) )
    | spl20_5 ),
    inference(binary_proxy_clausification,[status(thm)],[f368]) ).

thf(f368,plain,
    ( ( $true
      = ( ( ~ sK12
          & ( sK15 = sK23 ) )
        | ( ( sK14 = sK23 )
          & sK12 ) ) )
    | ( $true
      = ( sK14 = sK23 ) )
    | spl20_5 ),
    inference(binary_proxy_clausification,[status(thm)],[f367]) ).

thf(f280,plain,
    ~ spl20_6,
    inference(avatar_contradiction_clause,[status(thm)],[f279]) ).

thf(f279,plain,
    ( $false
    | ~ spl20_6 ),
    inference(trivial_inequality_removal,[status(thm)],[f278]) ).

thf(f278,plain,
    ( ( $true = $false )
    | ~ spl20_6 ),
    inference(backward_demodulation,[status(thm)],[f199,f276]) ).

thf(f276,plain,
    ( ( ( in @ sK14 @ ( setadjoin @ sK14 @ emptyset ) )
      = $false )
    | ~ spl20_6 ),
    inference(equality_resolution,[status(thm)],[f184]) ).

thf(f184,plain,
    ( ! [X0: $i] :
        ( ( ( setadjoin @ sK14 @ emptyset )
         != ( setadjoin @ X0 @ emptyset ) )
        | ( ( in @ X0 @ ( setadjoin @ sK14 @ emptyset ) )
          = $false ) )
    | ~ spl20_6 ),
    inference(avatar_component_clause,[status(thm)],[f183]) ).

thf(f183,definition,
    ( spl20_6
  <=> ! [X0: $i] :
        ( ( ( setadjoin @ sK14 @ emptyset )
         != ( setadjoin @ X0 @ emptyset ) )
        | ( ( in @ X0 @ ( setadjoin @ sK14 @ emptyset ) )
          = $false ) ) ),
    introduced(definition,[new_symbols(naming,[spl20_6])],[avatar_definition]) ).

thf(f199,plain,
    ( $true
    = ( in @ sK14 @ ( setadjoin @ sK14 @ emptyset ) ) ),
    inference(forward_demodulation,[status(thm)],[f196,f133]) ).

thf(f133,plain,
    ( ( setadjoin @ sK14 @ emptyset )
    = ( dsetconstr @ sK13 @ ( (=) @ sK14 ) ) ),
    inference(trivial_inequality_removal,[status(thm)],[f130]) ).

thf(f130,plain,
    ( ( ( setadjoin @ sK14 @ emptyset )
      = ( dsetconstr @ sK13 @ ( (=) @ sK14 ) ) )
    | ( $true != $true ) ),
    inference(superposition,[status(thm)],[f129,f73]) ).

thf(f73,plain,
    ( $true
    = ( in @ sK14 @ sK13 ) ),
    inference(cnf_transformation,[status(thm)],[f50]) ).

thf(f196,plain,
    ( $true
    = ( in @ sK14 @ ( dsetconstr @ sK13 @ ( (=) @ sK14 ) ) ) ),
    inference(trivial_inequality_removal,[status(thm)],[f194]) ).

thf(f194,plain,
    ( ( $true
      = ( in @ sK14 @ ( dsetconstr @ sK13 @ ( (=) @ sK14 ) ) ) )
    | ( $true != $true ) ),
    inference(superposition,[status(thm)],[f137,f73]) ).

thf(f193,plain,
    ( ~ spl20_7
    | spl20_8 ),
    inference(avatar_split_clause,[status(thm)],[f177,f191,f187]) ).

thf(f177,plain,
    ! [X0: $i] :
      ( ( ( setadjoin @ sK15 @ emptyset )
       != ( setadjoin @ X0 @ emptyset ) )
      | ( ( (=) @ sK15 )
       != ( ^ [Y0: $i] :
              ( ( ~ sK12
                & ( sK15 = Y0 ) )
              | ( ( sK14 = Y0 )
                & sK12 ) ) ) )
      | ( ( in @ X0 @ ( setadjoin @ sK15 @ emptyset ) )
        = $false ) ),
    inference(constrained_superposition,[status(thm)],[f111,f132]) ).

thf(f111,plain,
    ! [X1: $i] :
      ( ( ( setadjoin @ X1 @ emptyset )
       != ( dsetconstr @ sK13
          @ ^ [Y0: $i] :
              ( ( ~ sK12
                & ( sK15 = Y0 ) )
              | ( ( sK14 = Y0 )
                & sK12 ) ) ) )
      | ( ( in @ X1
          @ ( dsetconstr @ sK13
            @ ^ [Y0: $i] :
                ( ( ~ sK12
                  & ( sK15 = Y0 ) )
                | ( ( sK14 = Y0 )
                  & sK12 ) ) ) )
        = $false ) ),
    inference(equality_proxy_clausification,[status(thm)],[f110]) ).

thf(f110,plain,
    ! [X1: $i] :
      ( ( ( in @ X1
          @ ( dsetconstr @ sK13
            @ ^ [Y0: $i] :
                ( ( ~ sK12
                  & ( sK15 = Y0 ) )
                | ( ( sK14 = Y0 )
                  & sK12 ) ) ) )
        = $false )
      | ( ( ( setadjoin @ X1 @ emptyset )
          = ( dsetconstr @ sK13
            @ ^ [Y0: $i] :
                ( ( ~ sK12
                  & ( sK15 = Y0 ) )
                | ( ( sK14 = Y0 )
                  & sK12 ) ) ) )
        = $false ) ),
    inference(binary_proxy_clausification,[status(thm)],[f109]) ).

thf(f109,plain,
    ! [X1: $i] :
      ( ( ( ( setadjoin @ X1 @ emptyset )
          = ( dsetconstr @ sK13
            @ ^ [Y0: $i] :
                ( ( ~ sK12
                  & ( sK15 = Y0 ) )
                | ( ( sK14 = Y0 )
                  & sK12 ) ) ) )
        & ( in @ X1
          @ ( dsetconstr @ sK13
            @ ^ [Y0: $i] :
                ( ( ~ sK12
                  & ( sK15 = Y0 ) )
                | ( ( sK14 = Y0 )
                  & sK12 ) ) ) ) )
      = $false ),
    inference(beta_eta_normalization,[status(thm)],[f108]) ).

thf(f108,plain,
    ! [X1: $i] :
      ( ( ^ [Y0: $i] :
            ( ( ( setadjoin @ Y0 @ emptyset )
              = ( dsetconstr @ sK13
                @ ^ [Y1: $i] :
                    ( ( ~ sK12
                      & ( sK15 = Y1 ) )
                    | ( ( sK14 = Y1 )
                      & sK12 ) ) ) )
            & ( in @ Y0
              @ ( dsetconstr @ sK13
                @ ^ [Y1: $i] :
                    ( ( ~ sK12
                      & ( sK15 = Y1 ) )
                    | ( ( sK14 = Y1 )
                      & sK12 ) ) ) ) )
        @ X1 )
      = $false ),
    inference(pi_clausification,[status(thm)],[f107]) ).

thf(f107,plain,
    ( $true
   != ( ?? @ $i
      @ ^ [Y0: $i] :
          ( ( ( setadjoin @ Y0 @ emptyset )
            = ( dsetconstr @ sK13
              @ ^ [Y1: $i] :
                  ( ( ~ sK12
                    & ( sK15 = Y1 ) )
                  | ( ( sK14 = Y1 )
                    & sK12 ) ) ) )
          & ( in @ Y0
            @ ( dsetconstr @ sK13
              @ ^ [Y1: $i] :
                  ( ( ~ sK12
                    & ( sK15 = Y1 ) )
                  | ( ( sK14 = Y1 )
                    & sK12 ) ) ) ) ) ) ),
    inference(beta_eta_normalization,[status(thm)],[f99]) ).

thf(f99,plain,
    ( $true
   != ( ^ [Y0: $i] :
          ( ?? @ $i
          @ ^ [Y1: $i] :
              ( ( ( setadjoin @ Y1 @ emptyset )
                = Y0 )
              & ( in @ Y1 @ Y0 ) ) )
      @ ( dsetconstr @ sK13
        @ ^ [Y0: $i] :
            ( ( ~ sK12
              & ( sK15 = Y0 ) )
            | ( ( sK14 = Y0 )
              & sK12 ) ) ) ) ),
    inference(definition_unfolding,[status(thm)],[f74,f66]) ).

thf(f66,plain,
    ( singleton
    = ( ^ [Y0: $i] :
          ( ?? @ $i
          @ ^ [Y1: $i] :
              ( ( ( setadjoin @ Y1 @ emptyset )
                = Y0 )
              & ( in @ Y1 @ Y0 ) ) ) ) ),
    inference(cnf_transformation,[status(thm)],[f20]) ).

thf(f20,plain,
    ( singleton
    = ( ^ [Y0: $i] :
          ( ?? @ $i
          @ ^ [Y1: $i] :
              ( ( ( setadjoin @ Y1 @ emptyset )
                = Y0 )
              & ( in @ Y1 @ Y0 ) ) ) ) ),
    inference(fool_elimination,[status(thm)],[f19]) ).

thf(f19,plain,
    ( ( ^ [X0: $i] :
        ? [X1: $i] :
          ( ( in @ X1 @ X0 )
          & ( ( setadjoin @ X1 @ emptyset )
            = X0 ) ) )
    = singleton ),
    inference(rectify,[status(thm)],[f1]) ).

thf(f1,axiom,
    ( ( ^ [X0: $i] :
        ? [X1: $i] :
          ( ( in @ X1 @ X0 )
          & ( ( setadjoin @ X1 @ emptyset )
            = X0 ) ) )
    = singleton ),
    file('/export/starexec/sandbox/tmp/tmp.qbkje3dyq5/DTF2THF_25610.p',singleton) ).

thf(f74,plain,
    ( $true
   != ( singleton
      @ ( dsetconstr @ sK13
        @ ^ [Y0: $i] :
            ( ( ~ sK12
              & ( sK15 = Y0 ) )
            | ( ( sK14 = Y0 )
              & sK12 ) ) ) ) ),
    inference(cnf_transformation,[status(thm)],[f50]) ).

thf(f185,plain,
    ( ~ spl20_5
    | spl20_6 ),
    inference(avatar_split_clause,[status(thm)],[f176,f183,f179]) ).

thf(f176,plain,
    ! [X0: $i] :
      ( ( ( setadjoin @ sK14 @ emptyset )
       != ( setadjoin @ X0 @ emptyset ) )
      | ( ( in @ X0 @ ( setadjoin @ sK14 @ emptyset ) )
        = $false )
      | ( ( ^ [Y0: $i] :
              ( ( ~ sK12
                & ( sK15 = Y0 ) )
              | ( ( sK14 = Y0 )
                & sK12 ) ) )
       != ( (=) @ sK14 ) ) ),
    inference(constrained_superposition,[status(thm)],[f111,f133]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.09  % Problem  : SEU704^2 : TPTP v9.2.1. Released v3.7.0.
% 0.00/0.09  % Command  : /export/starexec/sandbox/solver/bin/run_DT2H2X /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 0.10/0.29  % Computer : n003.cluster.edu
% 0.10/0.29  % Model    : x86_64 x86_64
% 0.10/0.29  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.29  % Memory   : 8042.1875MB
% 0.10/0.29  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.10/0.29  % CPULimit : 300
% 0.10/0.29  % WCLimit  : 300
% 0.10/0.29  % DateTime : Tue Feb 24 12:31:10 EST 2026
% 0.10/0.29  % CPUTime  : 
% 0.10/0.29  Running /export/starexec/sandbox/solver/bin/run_DT2H2X /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 0.16/0.39  ---- Original DTF file ---
% 0.16/0.39  thf(spec,logic,$$dhol).
% 0.16/0.39  %------------------------------------------------------------------------------
% 0.16/0.39  % File     : SEU704^2 : TPTP v9.2.1. Released v3.7.0.
% 0.16/0.39  % Domain   : Set Theory
% 0.16/0.39  % Problem  : Conditionals
% 0.16/0.39  % Version  : Especial > Reduced > Especial.
% 0.16/0.39  % English  : (! A:i.! phi:o.! x:i.in x A -> (! y:i.in y A -> singleton
% 0.16/0.39  %            (dsetconstr A (^ z:i.phi & z = x | ~phi & z = y))))
% 0.16/0.39  
% 0.16/0.39  % Refs     : [Bro08] Brown (2008), Email to G. Sutcliffe
% 0.16/0.39  % Source   : [Bro08]
% 0.16/0.39  % Names    : ZFC206l [Bro08]
% 0.16/0.39  
% 0.16/0.39  % Status   : Theorem
% 0.16/0.39  % Rating   : 0.22 v9.1.0, 0.25 v9.0.0, 0.30 v8.2.0, 0.38 v8.1.0, 0.45 v7.5.0, 0.57 v7.4.0, 0.44 v7.2.0, 0.38 v7.1.0, 0.50 v7.0.0, 0.43 v6.4.0, 0.50 v6.3.0, 0.60 v6.2.0, 0.43 v6.1.0, 0.57 v5.5.0, 0.50 v5.4.0, 0.60 v4.1.0, 1.00 v3.7.0
% 0.16/0.39  % Syntax   : Number of formulae    :   15 (   5 unt;   9 typ;   5 def)
% 0.16/0.39  %            Number of atoms       :   41 (  18 equ;   0 cnn)
% 0.16/0.39  %            Maximal formula atoms :    9 (   6 avg)
% 0.16/0.39  %            Number of connectives :   84 (   7   ~;   5   |;  11   &;  43   @)
% 0.16/0.39  %                                         (   0 <=>;  18  =>;   0  <=;   0 <~>)
% 0.16/0.39  %            Maximal formula depth :   17 (   4 avg)
% 0.16/0.39  %            Number of types       :    2 (   0 usr)
% 0.16/0.39  %            Number of type conns  :    8 (   8   >;   0   *;   0   +;   0  <<)
% 0.16/0.39  %            Number of symbols     :   10 (   9 usr;   5 con; 0-2 aty)
% 0.16/0.39  %            Number of variables   :   27 (   6   ^;  20   !;   1   ?;  27   :)
% 0.16/0.39  % SPC      : TH0_THM_EQU_NAR
% 0.16/0.39  
% 0.16/0.39  % Comments : http://mathgate.info/detsetitem.php?id=256
% 0.16/0.39  %------------------------------------------------------------------------------
% 0.16/0.39  thf(in_type,type,
% 0.16/0.39      in: $i > $i > $o ).
% 0.16/0.39  
% 0.16/0.39  thf(emptyset_type,type,
% 0.16/0.39      emptyset: $i ).
% 0.16/0.39  
% 0.16/0.39  thf(setadjoin_type,type,
% 0.16/0.39      setadjoin: $i > $i > $i ).
% 0.16/0.39  
% 0.16/0.39  thf(dsetconstr_type,type,
% 0.16/0.39      dsetconstr: $i > ( $i > $o ) > $i ).
% 0.16/0.39  
% 0.16/0.39  thf(singleton_type,type,
% 0.16/0.39      singleton: $i > $o ).
% 0.16/0.39  
% 0.16/0.39  thf(singleton,definition,
% 0.16/0.39      ( singleton
% 0.16/0.39      = ( ^ [A: $i] :
% 0.16/0.39          ? [Xx: $i] :
% 0.16/0.39            ( ( in @ Xx @ A )
% 0.16/0.39            & ( A
% 0.16/0.39              = ( setadjoin @ Xx @ emptyset ) ) ) ) ) ).
% 0.16/0.39  
% 0.16/0.39  thf(iffalseProp1_type,type,
% 0.16/0.39      iffalseProp1: $o ).
% 0.16/0.39  
% 0.16/0.39  thf(iffalseProp1,definition,
% 0.16/0.39      ( iffalseProp1
% 0.16/0.39      = ( ! [A: $i,Xphi: $o,Xx: $i] :
% 0.16/0.39            ( ( in @ Xx @ A )
% 0.16/0.39           => ! [Xy: $i] :
% 0.16/0.39                ( ( in @ Xy @ A )
% 0.16/0.39               => ( ~ Xphi
% 0.16/0.39                 => ( in @ Xy
% 0.16/0.39                    @ ( dsetconstr @ A
% 0.16/0.39                      @ ^ [Xz: $i] :
% 0.16/0.39                          ( ( Xphi
% 0.16/0.39                            & ( Xz = Xx ) )
% 0.16/0.39                          | ( ~ Xphi
% 0.16/0.39                            & ( Xz = Xy ) ) ) ) ) ) ) ) ) ) ).
% 0.16/0.39  
% 0.16/0.39  thf(iffalseProp2_type,type,
% 0.16/0.39      iffalseProp2: $o ).
% 0.16/0.39  
% 0.16/0.39  thf(iffalseProp2,definition,
% 0.16/0.39      ( iffalseProp2
% 0.16/0.39      = ( ! [A: $i,Xphi: $o,Xx: $i] :
% 0.16/0.39            ( ( in @ Xx @ A )
% 0.16/0.39           => ! [Xy: $i] :
% 0.16/0.39                ( ( in @ Xy @ A )
% 0.16/0.39               => ( ~ Xphi
% 0.16/0.39                 => ( ( dsetconstr @ A
% 0.16/0.39                      @ ^ [Xz: $i] :
% 0.16/0.39                          ( ( Xphi
% 0.16/0.39                            & ( Xz = Xx ) )
% 0.16/0.39                          | ( ~ Xphi
% 0.16/0.39                            & ( Xz = Xy ) ) ) )
% 0.16/0.39                    = ( setadjoin @ Xy @ emptyset ) ) ) ) ) ) ) ).
% 0.16/0.39  
% 0.16/0.39  thf(iftrueProp1_type,type,
% 0.16/0.39      iftrueProp1: $o ).
% 0.16/0.39  
% 0.16/0.39  thf(iftrueProp1,definition,
% 0.16/0.39      ( iftrueProp1
% 0.16/0.39      = ( ! [A: $i,Xphi: $o,Xx: $i] :
% 0.16/0.39            ( ( in @ Xx @ A )
% 0.16/0.39           => ! [Xy: $i] :
% 0.16/0.39                ( ( in @ Xy @ A )
% 0.16/0.39               => ( Xphi
% 0.16/0.39                 => ( in @ Xx
% 0.16/0.39                    @ ( dsetconstr @ A
% 0.16/0.39                      @ ^ [Xz: $i] :
% 0.16/0.39                          ( ( Xphi
% 0.16/0.39                            & ( Xz = Xx ) )
% 0.16/0.39                          | ( ~ Xphi
% 0.16/0.39                            & ( Xz = Xy ) ) ) ) ) ) ) ) ) ) ).
% 0.16/0.39  
% 0.16/0.39  thf(iftrueProp2_type,type,
% 0.16/0.39      iftrueProp2: $o ).
% 0.16/0.39  
% 0.16/0.39  thf(iftrueProp2,definition,
% 0.16/0.39      ( iftrueProp2
% 0.16/0.39      = ( ! [A: $i,Xphi: $o,Xx: $i] :
% 0.16/0.39            ( ( in @ Xx @ A )
% 0.16/0.39           => ! [Xy: $i] :
% 0.16/0.39                ( ( in @ Xy @ A )
% 0.16/0.39               => ( Xphi
% 0.16/0.39                 => ( ( dsetconstr @ A
% 0.16/0.39                      @ ^ [Xz: $i] :
% 0.16/0.39                          ( ( Xphi
% 0.16/0.39                            & ( Xz = Xx ) )
% 0.16/0.39                          | ( ~ Xphi
% 0.16/0.39                            & ( Xz = Xy ) ) ) )
% 0.16/0.39                    = ( setadjoin @ Xx @ emptyset ) ) ) ) ) ) ) ).
% 0.16/0.39  
% 0.16/0.39  thf(ifSingleton,conjecture,
% 0.16/0.39      ( iffalseProp1
% 0.16/0.39     => ( iffalseProp2
% 0.16/0.39       => ( iftrueProp1
% 0.16/0.39         => ( iftrueProp2
% 0.16/0.39           => ! [A: $i,Xphi: $o,Xx: $i] :
% 0.16/0.39                ( ( in @ Xx @ A )
% 0.16/0.39               => ! [Xy: $i] :
% 0.16/0.39                    ( ( in @ Xy @ A )
% 0.16/0.39                   => ( singleton
% 0.16/0.39                      @ ( dsetconstr @ A
% 0.16/0.39                        @ ^ [Xz: $i] :
% 0.16/0.39                            ( ( Xphi
% 0.16/0.39                              & ( Xz = Xx ) )
% 0.16/0.39                            | ( ~ Xphi
% 0.16/0.39                              & ( Xz = Xy ) ) ) ) ) ) ) ) ) ) ) ).
% 0.16/0.39  
% 0.16/0.39  %------------------------------------------------------------------------------
% 0.16/0.39  ------------------------
% 1.64/1.31  ---- Embedded in THF ---
% 1.64/1.31  %%% This output was generated by embedproblem, version 1.9.5 (library version 1.9).
% 1.64/1.31  %%% Generated on Tue Feb 24 12:31:11 EST 2026
% 1.64/1.31  %%% using '$$dhol' embedding, version 1.3.0.
% 1.64/1.31  %%% Logic specification used:
% 1.64/1.31  %%% thf(spec, logic, $$dhol).
% 1.64/1.31  
% 1.64/1.31  % SZS output start ListOfTHF for /export/starexec/sandbox/tmp/tmp.qbkje3dyq5/DTF2DTF25610.p
% See solution above
% 1.64/1.31  ------------------------
% 1.64/1.32  ---- Cleaned THF ---
% 1.64/1.32  thf(in_type,type,
% 1.64/1.32      in: $i > $i > $o ).
% 1.64/1.32  
% 1.64/1.32  thf(emptyset_type,type,
% 1.64/1.32      emptyset: $i ).
% 1.64/1.32  
% 1.64/1.32  thf(setadjoin_type,type,
% 1.64/1.32      setadjoin: $i > $i > $i ).
% 1.64/1.32  
% 1.64/1.32  thf(dsetconstr_type,type,
% 1.64/1.32      dsetconstr: $i > ( $i > $o ) > $i ).
% 1.64/1.32  
% 1.64/1.32  thf(singleton_type,type,
% 1.64/1.32      singleton: $i > $o ).
% 1.64/1.32  
% 1.64/1.32  thf(singleton,definition,
% 1.64/1.32      ( singleton
% 1.64/1.32      = ( ^ [A: $i] :
% 1.64/1.32          ? [Xx: $i] :
% 1.64/1.32            ( ( in @ Xx @ A )
% 1.64/1.32            & ( A
% 1.64/1.32              = ( setadjoin @ Xx @ emptyset ) ) ) ) ) ).
% 1.64/1.32  
% 1.64/1.32  thf(iffalseProp1_type,type,
% 1.64/1.32      iffalseProp1: $o ).
% 1.64/1.32  
% 1.64/1.32  thf(iffalseProp1,definition,
% 1.64/1.32      ( iffalseProp1
% 1.64/1.32      = ( ! [A: $i,Xphi: $o,Xx: $i] :
% 1.64/1.32            ( ( in @ Xx @ A )
% 1.64/1.32           => ! [Xy: $i] :
% 1.64/1.32                ( ( in @ Xy @ A )
% 1.64/1.32               => ( ~ Xphi
% 1.64/1.32                 => ( in @ Xy
% 1.64/1.32                    @ ( dsetconstr @ A
% 1.64/1.32                      @ ^ [Xz: $i] :
% 1.64/1.32                          ( ( Xphi
% 1.64/1.32                            & ( Xz = Xx ) )
% 1.64/1.32                          | ( ~ Xphi
% 1.64/1.32                            & ( Xz = Xy ) ) ) ) ) ) ) ) ) ) ).
% 1.64/1.32  
% 1.64/1.32  thf(iffalseProp2_type,type,
% 1.64/1.32      iffalseProp2: $o ).
% 1.64/1.32  
% 1.64/1.32  thf(iffalseProp2,definition,
% 1.64/1.32      ( iffalseProp2
% 1.64/1.32      = ( ! [A: $i,Xphi: $o,Xx: $i] :
% 1.64/1.32            ( ( in @ Xx @ A )
% 1.64/1.32           => ! [Xy: $i] :
% 1.64/1.32                ( ( in @ Xy @ A )
% 1.64/1.32               => ( ~ Xphi
% 1.64/1.32                 => ( ( dsetconstr @ A
% 1.64/1.32                      @ ^ [Xz: $i] :
% 1.64/1.32                          ( ( Xphi
% 1.64/1.32                            & ( Xz = Xx ) )
% 1.64/1.32                          | ( ~ Xphi
% 1.64/1.32                            & ( Xz = Xy ) ) ) )
% 1.64/1.32                    = ( setadjoin @ Xy @ emptyset ) ) ) ) ) ) ) ).
% 1.64/1.32  
% 1.64/1.32  thf(iftrueProp1_type,type,
% 1.64/1.32      iftrueProp1: $o ).
% 1.64/1.32  
% 1.64/1.32  thf(iftrueProp1,definition,
% 1.64/1.32      ( iftrueProp1
% 1.64/1.32      = ( ! [A: $i,Xphi: $o,Xx: $i] :
% 1.64/1.32            ( ( in @ Xx @ A )
% 1.64/1.32           => ! [Xy: $i] :
% 1.64/1.32                ( ( in @ Xy @ A )
% 1.64/1.32               => ( Xphi
% 1.64/1.32                 => ( in @ Xx
% 1.64/1.32                    @ ( dsetconstr @ A
% 1.64/1.32                      @ ^ [Xz: $i] :
% 1.64/1.32                          ( ( Xphi
% 1.64/1.32                            & ( Xz = Xx ) )
% 1.64/1.32                          | ( ~ Xphi
% 1.64/1.32                            & ( Xz = Xy ) ) ) ) ) ) ) ) ) ) ).
% 1.64/1.32  
% 1.64/1.32  thf(iftrueProp2_type,type,
% 1.64/1.32      iftrueProp2: $o ).
% 1.64/1.32  
% 1.64/1.32  thf(iftrueProp2,definition,
% 1.64/1.32      ( iftrueProp2
% 1.64/1.32      = ( ! [A: $i,Xphi: $o,Xx: $i] :
% 1.64/1.32            ( ( in @ Xx @ A )
% 1.64/1.32           => ! [Xy: $i] :
% 1.64/1.32                ( ( in @ Xy @ A )
% 1.64/1.32               => ( Xphi
% 1.64/1.32                 => ( ( dsetconstr @ A
% 1.64/1.32                      @ ^ [Xz: $i] :
% 1.64/1.32                          ( ( Xphi
% 1.64/1.32                            & ( Xz = Xx ) )
% 1.64/1.32                          | ( ~ Xphi
% 1.64/1.32                            & ( Xz = Xy ) ) ) )
% 1.64/1.32                    = ( setadjoin @ Xx @ emptyset ) ) ) ) ) ) ) ).
% 1.64/1.32  
% 1.64/1.32  thf(ifSingleton,conjecture,
% 1.64/1.32      ( iffalseProp1
% 1.64/1.32     => ( iffalseProp2
% 1.64/1.32       => ( iftrueProp1
% 1.64/1.32         => ( iftrueProp2
% 1.64/1.32           => ! [A: $i,Xphi: $o,Xx: $i] :
% 1.64/1.32                ( ( in @ Xx @ A )
% 1.64/1.32               => ! [Xy: $i] :
% 1.64/1.32                    ( ( in @ Xy @ A )
% 1.64/1.32                   => ( singleton
% 1.64/1.32                      @ ( dsetconstr @ A
% 1.64/1.32                        @ ^ [Xz: $i] :
% 1.64/1.32                            ( ( Xphi
% 1.64/1.32                              & ( Xz = Xx ) )
% 1.64/1.32                            | ( ~ Xphi
% 1.64/1.32                              & ( Xz = Xy ) ) ) ) ) ) ) ) ) ) ) ).
% 1.64/1.32  ------------------------
% 1.64/1.34  % (25709)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_25610 for (2999ds/27Mi)
% 1.64/1.34  % (25708)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_25610 for (2999ds/4Mi)
% 1.64/1.34  % (25710)lrs+10_1:1_au=on:inj=on:i=2:si=on:rtra=on_0 on DTF2THF_25610 for (2999ds/2Mi)
% 1.64/1.34  % (25711)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_25610 for (2999ds/2Mi)
% 1.64/1.34  % (25707)lrs+1002_1:8_bd=off:fd=off:hud=10:tnu=1:i=183:si=on:rtra=on_0 on DTF2THF_25610 for (2999ds/183Mi)
% 1.64/1.34  % (25713)lrs+1004_1:128_cond=on:e2e=on:sp=weighted_frequency:i=18:si=on:rtra=on_0 on DTF2THF_25610 for (2999ds/18Mi)
% 1.64/1.34  % (25712)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_25610 for (2999ds/275Mi)
% 1.64/1.34  % (25710)Instruction limit reached!
% 1.64/1.34  % (25710)------------------------------
% 1.64/1.34  % (25710)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.64/1.34  % (25710)Termination reason: Unknown
% 1.64/1.34  % (25711)Instruction limit reached!
% 1.64/1.34  % (25711)------------------------------
% 1.64/1.34  % (25711)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.64/1.34  % (25711)Termination reason: Unknown
% 1.64/1.34  % (25711)Termination phase: Property scanning
% 1.64/1.34  
% 1.64/1.34  % (25711)Memory used [KB]: 1023
% 1.64/1.34  % (25711)Time elapsed: 0.003 s
% 1.64/1.34  % (25711)Instructions burned: 3 (million)
% 1.64/1.34  % (25711)------------------------------
% 1.64/1.34  % (25711)------------------------------
% 1.64/1.34  % (25710)Termination phase: Property scanning
% 1.64/1.34  
% 1.64/1.34  % (25710)Memory used [KB]: 1023
% 1.64/1.34  % (25710)Time elapsed: 0.003 s
% 1.64/1.34  % (25710)Instructions burned: 3 (million)
% 1.64/1.34  % (25710)------------------------------
% 1.64/1.34  % (25710)------------------------------
% 1.64/1.34  % (25708)Instruction limit reached!
% 1.64/1.34  % (25708)------------------------------
% 1.64/1.34  % (25708)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.64/1.34  % (25708)Termination reason: Unknown
% 1.64/1.34  % (25708)Termination phase: Function definition elimination
% 1.64/1.34  
% 1.64/1.34  % (25708)Memory used [KB]: 1023
% 1.64/1.34  % (25708)Time elapsed: 0.004 s
% 1.64/1.34  % (25708)Instructions burned: 5 (million)
% 1.64/1.34  % (25708)------------------------------
% 1.64/1.34  % (25708)------------------------------
% 1.64/1.35  % (25712)Refutation not found, incomplete strategy
% 1.64/1.35  % (25712)------------------------------
% 1.64/1.35  % (25712)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.64/1.35  % (25712)Termination reason: Refutation not found, incomplete strategy
% 1.64/1.35  
% 1.64/1.35  
% 1.64/1.35  % (25712)Memory used [KB]: 5628
% 1.64/1.35  % (25712)Time elapsed: 0.008 s
% 1.64/1.35  % (25712)Instructions burned: 10 (million)
% 1.64/1.35  % (25712)------------------------------
% 1.64/1.35  % (25712)------------------------------
% 1.64/1.35  % (25713)Instruction limit reached!
% 1.64/1.35  % (25713)------------------------------
% 1.64/1.35  % (25713)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.64/1.35  % (25713)Termination reason: Unknown
% 1.64/1.35  % (25713)Termination phase: Saturation
% 1.64/1.35  
% 1.64/1.35  % (25713)Memory used [KB]: 5628
% 1.64/1.35  % (25713)Time elapsed: 0.011 s
% 1.64/1.35  % (25713)Instructions burned: 18 (million)
% 1.64/1.35  % (25713)------------------------------
% 1.64/1.35  % (25713)------------------------------
% 1.64/1.35  % (25709)Refutation not found, incomplete strategy
% 1.64/1.35  % (25709)------------------------------
% 1.64/1.35  % (25709)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.64/1.35  % (25709)Termination reason: Refutation not found, incomplete strategy
% 1.64/1.35  
% 1.64/1.35  
% 1.64/1.35  % (25709)Memory used [KB]: 5628
% 1.64/1.35  % (25709)Time elapsed: 0.014 s
% 1.64/1.35  % (25709)Instructions burned: 24 (million)
% 1.64/1.35  % (25709)------------------------------
% 1.64/1.35  % (25709)------------------------------
% 1.64/1.36  % (25714)lrs+10_1:1_bet=on:cnfonf=off:fd=off:hud=5:inj=on:i=3:si=on:rtra=on_0 on DTF2THF_25610 for (2999ds/3Mi)
% 1.64/1.36  % (25715)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_25610 for (2999ds/37Mi)
% 1.64/1.36  % (25716)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_25610 for (2999ds/15Mi)
% 1.64/1.36  % (25714)Instruction limit reached!
% 1.64/1.36  % (25714)------------------------------
% 1.64/1.36  % (25714)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.64/1.36  % (25714)Termination reason: Unknown
% 1.64/1.36  % (25714)Termination phase: Preprocessing 3
% 1.64/1.36  
% 1.64/1.36  % (25714)Memory used [KB]: 1023
% 1.64/1.36  % (25714)Time elapsed: 0.003 s
% 1.64/1.36  % (25714)Instructions burned: 4 (million)
% 1.64/1.36  % (25714)------------------------------
% 1.64/1.36  % (25714)------------------------------
% 1.64/1.36  % (25717)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_25610 for (2999ds/3Mi)
% 1.64/1.37  % (25717)Instruction limit reached!
% 1.64/1.37  % (25717)------------------------------
% 1.64/1.37  % (25717)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.64/1.37  % (25717)Termination reason: Unknown
% 1.64/1.37  % (25717)Termination phase: Preprocessing 3
% 1.64/1.37  
% 1.64/1.37  % (25717)Memory used [KB]: 1023
% 1.64/1.37  % (25717)Time elapsed: 0.003 s
% 1.64/1.37  % (25717)Instructions burned: 4 (million)
% 1.64/1.37  % (25717)------------------------------
% 1.64/1.37  % (25717)------------------------------
% 1.64/1.37  % (25718)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_25610 for (2999ds/1041Mi)
% 1.64/1.37  % (25716)Instruction limit reached!
% 1.64/1.37  % (25716)------------------------------
% 1.64/1.37  % (25716)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.64/1.37  % (25716)Termination reason: Unknown
% 1.64/1.37  % (25716)Termination phase: Saturation
% 1.64/1.37  
% 1.64/1.37  % (25716)Memory used [KB]: 5628
% 1.64/1.37  % (25716)Time elapsed: 0.009 s
% 1.64/1.37  % (25716)Instructions burned: 15 (million)
% 1.64/1.37  % (25716)------------------------------
% 1.64/1.37  % (25716)------------------------------
% 1.64/1.37  % (25719)lrs+10_1:1_av=off:chr=on:plsq=on:slsq=on:i=7:si=on:rtra=on_0 on DTF2THF_25610 for (2999ds/7Mi)
% 1.64/1.37  % (25719)Instruction limit reached!
% 1.64/1.37  % (25719)------------------------------
% 1.64/1.37  % (25719)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.64/1.37  % (25719)Termination reason: Unknown
% 1.64/1.37  % (25719)Termination phase: Saturation
% 1.64/1.37  
% 1.64/1.37  % (25719)Memory used [KB]: 1023
% 1.64/1.37  % (25719)Time elapsed: 0.005 s
% 1.64/1.37  % (25719)Instructions burned: 8 (million)
% 1.64/1.37  % (25719)------------------------------
% 1.64/1.37  % (25719)------------------------------
% 1.64/1.38  % (25720)lrs+10_1:1_acc=on:amm=sco:cs=on:tgt=full:i=16:si=on:rtra=on_0 on DTF2THF_25610 for (2999ds/16Mi)
% 1.64/1.38  % (25715)Instruction limit reached!
% 1.64/1.38  % (25715)------------------------------
% 1.64/1.38  % (25715)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.64/1.38  % (25715)Termination reason: Unknown
% 1.64/1.38  % (25715)Termination phase: Saturation
% 1.64/1.38  
% 1.64/1.38  % (25715)Memory used [KB]: 5628
% 1.64/1.38  % (25715)Time elapsed: 0.019 s
% 1.64/1.38  % (25715)Instructions burned: 38 (million)
% 1.64/1.38  % (25715)------------------------------
% 1.64/1.38  % (25715)------------------------------
% 1.64/1.38  % (25721)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_25610 for (2999ds/3Mi)
% 1.64/1.38  % (25722)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_25610 for (2999ds/3Mi)
% 1.64/1.38  % (25721)Instruction limit reached!
% 1.64/1.38  % (25721)------------------------------
% 1.64/1.38  % (25721)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.64/1.38  % (25721)Termination reason: Unknown
% 1.64/1.38  % (25721)Termination phase: Preprocessing 1
% 1.64/1.38  
% 1.64/1.38  % (25721)Memory used [KB]: 1023
% 1.64/1.38  % (25721)Time elapsed: 0.003 s
% 1.64/1.38  % (25721)Instructions burned: 4 (million)
% 1.64/1.38  % (25721)------------------------------
% 1.64/1.38  % (25721)------------------------------
% 1.64/1.38  % (25722)Instruction limit reached!
% 1.64/1.38  % (25722)------------------------------
% 1.64/1.38  % (25722)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.64/1.38  % (25722)Termination reason: Unknown
% 1.64/1.38  % (25722)Termination phase: shuffling
% 1.64/1.38  
% 1.64/1.38  % (25722)Memory used [KB]: 1023
% 1.64/1.38  % (25722)Time elapsed: 0.003 s
% 1.64/1.38  % (25722)Instructions burned: 4 (million)
% 1.64/1.38  % (25722)------------------------------
% 1.64/1.38  % (25722)------------------------------
% 1.64/1.38  % (25720)Instruction limit reached!
% 1.64/1.38  % (25720)------------------------------
% 1.64/1.38  % (25720)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.64/1.38  % (25720)Termination reason: Unknown
% 1.64/1.38  % (25720)Termination phase: Saturation
% 1.64/1.38  
% 1.64/1.38  % (25720)Memory used [KB]: 6012
% 1.64/1.38  % (25720)Time elapsed: 0.010 s
% 1.64/1.38  % (25720)Instructions burned: 17 (million)
% 1.64/1.38  % (25720)------------------------------
% 1.64/1.38  % (25720)------------------------------
% 1.64/1.39  % (25723)lrs+10_1:1_cnfonf=off:cs=on:hud=3:prag=on:sup=off:i=7:si=on:rtra=on_0 on DTF2THF_25610 for (2999ds/7Mi)
% 1.64/1.39  % (25724)dis+1002_1:1_add=large:cnfonf=lazy_pi_sigma_gen:fe=off:prag=on:i=3:si=on:rtra=on_0 on DTF2THF_25610 for (2999ds/3Mi)
% 1.64/1.39  % (25723)Refutation not found, incomplete strategy
% 1.64/1.39  % (25723)------------------------------
% 1.64/1.39  % (25723)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.64/1.39  % (25723)Termination reason: Refutation not found, incomplete strategy
% 1.64/1.39  
% 1.64/1.39  
% 1.64/1.39  % (25723)Memory used [KB]: 5500
% 1.64/1.39  % (25723)Time elapsed: 0.005 s
% 1.64/1.39  % (25723)Instructions burned: 6 (million)
% 1.64/1.39  % (25723)------------------------------
% 1.64/1.39  % (25723)------------------------------
% 1.64/1.39  % (25724)Instruction limit reached!
% 1.64/1.39  % (25724)------------------------------
% 1.64/1.39  % (25724)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.64/1.39  % (25724)Termination reason: Unknown
% 1.64/1.39  % (25724)Termination phase: Property scanning
% 1.64/1.39  
% 1.64/1.39  % (25724)Memory used [KB]: 1023
% 1.64/1.39  % (25724)Time elapsed: 0.003 s
% 1.64/1.39  % (25724)Instructions burned: 4 (million)
% 1.64/1.39  % (25724)------------------------------
% 1.64/1.39  % (25724)------------------------------
% 1.66/1.40  % (25725)dis+1004_1:1_cha=on:cs=on:fe=off:hud=1:i=4:si=on:rtra=on_0 on DTF2THF_25610 for (2999ds/4Mi)
% 1.66/1.40  % (25726)lrs+1002_1:1_anc=all_dependent:au=on:cbe=off:fde=unused:ntd=on:i=18:si=on:rtra=on_0 on DTF2THF_25610 for (2999ds/18Mi)
% 1.66/1.40  % (25727)lrs+10_1:1_e2e=on:sd=1:sgt=8:ss=axioms:i=710:si=on:rtra=on_0 on DTF2THF_25610 for (2999ds/710Mi)
% 1.66/1.40  % (25725)Instruction limit reached!
% 1.66/1.40  % (25725)------------------------------
% 1.66/1.40  % (25725)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.66/1.40  % (25725)Termination reason: Unknown
% 1.66/1.40  % (25725)Termination phase: Property scanning
% 1.66/1.40  
% 1.66/1.40  % (25725)Memory used [KB]: 1023
% 1.66/1.40  % (25725)Time elapsed: 0.004 s
% 1.66/1.40  % (25725)Instructions burned: 5 (million)
% 1.66/1.40  % (25725)------------------------------
% 1.66/1.40  % (25725)------------------------------
% 1.66/1.41  % (25726)Instruction limit reached!
% 1.66/1.41  % (25726)------------------------------
% 1.66/1.41  % (25726)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.66/1.41  % (25726)Termination reason: Unknown
% 1.66/1.41  % (25726)Termination phase: Saturation
% 1.66/1.41  
% 1.66/1.41  % (25726)Memory used [KB]: 5628
% 1.66/1.41  % (25726)Time elapsed: 0.010 s
% 1.66/1.41  % (25726)Instructions burned: 18 (million)
% 1.66/1.41  % (25726)------------------------------
% 1.66/1.41  % (25726)------------------------------
% 1.66/1.41  % (25728)lrs+1004_1:1_chr=on:prag=on:i=6:si=on:rtra=on_0 on DTF2THF_25610 for (2999ds/6Mi)
% 1.66/1.41  % (25729)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_25610 for (2999ds/902Mi)
% 1.66/1.41  % (25728)Instruction limit reached!
% 1.66/1.41  % (25728)------------------------------
% 1.66/1.41  % (25728)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.66/1.41  % (25728)Termination reason: Unknown
% 1.66/1.41  % (25728)Termination phase: Saturation
% 1.66/1.41  
% 1.66/1.41  % (25728)Memory used [KB]: 1023
% 1.66/1.41  % (25728)Time elapsed: 0.004 s
% 1.66/1.41  % (25728)Instructions burned: 6 (million)
% 1.66/1.41  % (25728)------------------------------
% 1.66/1.41  % (25728)------------------------------
% 1.66/1.41  % (25729)Refutation not found, incomplete strategy
% 1.66/1.41  % (25729)------------------------------
% 1.66/1.41  % (25729)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.66/1.41  % (25729)Termination reason: Refutation not found, incomplete strategy
% 1.66/1.41  
% 1.66/1.41  
% 1.66/1.41  % (25729)Memory used [KB]: 5500
% 1.66/1.41  % (25729)Time elapsed: 0.027 s
% 1.66/1.41  % (25729)Instructions burned: 9 (million)
% 1.66/1.41  % (25729)------------------------------
% 1.66/1.41  % (25729)------------------------------
% 1.66/1.42  % (25730)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_25610 for (2999ds/21Mi)
% 1.66/1.42  % (25731)dis+10_1:1_cnfonf=lazy_gen:fe=off:i=5:si=on:rtra=on_0 on DTF2THF_25610 for (2999ds/5Mi)
% 1.66/1.43  % (25731)Instruction limit reached!
% 1.66/1.43  % (25731)------------------------------
% 1.66/1.43  % (25731)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.66/1.43  % (25731)Termination reason: Unknown
% 1.66/1.43  % (25731)Termination phase: Saturation
% 1.66/1.43  
% 1.66/1.43  % (25731)Memory used [KB]: 1023
% 1.66/1.43  % (25731)Time elapsed: 0.004 s
% 1.66/1.43  % (25731)Instructions burned: 6 (million)
% 1.66/1.43  % (25731)------------------------------
% 1.66/1.43  % (25731)------------------------------
% 1.66/1.43  % (25732)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_25610 for (2999ds/6Mi)
% 1.66/1.43  % (25730)Instruction limit reached!
% 1.66/1.43  % (25730)------------------------------
% 1.66/1.43  % (25730)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.66/1.43  % (25730)Termination reason: Unknown
% 1.66/1.43  % (25730)Termination phase: Saturation
% 1.66/1.43  
% 1.66/1.43  % (25730)Memory used [KB]: 5628
% 1.66/1.43  % (25730)Time elapsed: 0.036 s
% 1.66/1.43  % (25730)Instructions burned: 22 (million)
% 1.66/1.43  % (25730)------------------------------
% 1.66/1.43  % (25730)------------------------------
% 1.66/1.43  % (25707)Instruction limit reached!
% 1.66/1.43  % (25707)------------------------------
% 1.66/1.43  % (25707)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.66/1.43  % (25707)Termination reason: Unknown
% 1.66/1.43  % (25707)Termination phase: Saturation
% 1.66/1.43  
% 1.66/1.43  % (25707)Memory used [KB]: 6268
% 1.66/1.43  % (25707)Time elapsed: 0.090 s
% 1.66/1.43  % (25707)Instructions burned: 184 (million)
% 1.66/1.43  % (25707)------------------------------
% 1.66/1.43  % (25707)------------------------------
% 1.66/1.43  % (25732)Instruction limit reached!
% 1.66/1.43  % (25732)------------------------------
% 1.66/1.43  % (25732)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.66/1.43  % (25732)Termination reason: Unknown
% 1.66/1.43  % (25732)Termination phase: Property scanning
% 1.66/1.43  
% 1.66/1.43  % (25732)Memory used [KB]: 1023
% 1.66/1.43  % (25732)Time elapsed: 0.004 s
% 1.66/1.43  % (25732)Instructions burned: 6 (million)
% 1.66/1.43  % (25732)------------------------------
% 1.66/1.43  % (25732)------------------------------
% 1.66/1.43  % (25733)lrs+1002_1:128_au=on:c=on:fsr=off:piset=equals:i=377:si=on:rtra=on_0 on DTF2THF_25610 for (2999ds/377Mi)
% 1.66/1.44  % (25733)Refutation not found, incomplete strategy
% 1.66/1.44  % (25733)------------------------------
% 1.66/1.44  % (25733)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.66/1.44  % (25733)Termination reason: Refutation not found, incomplete strategy
% 1.66/1.44  
% 1.66/1.44  
% 1.66/1.44  % (25733)Memory used [KB]: 5628
% 1.66/1.44  % (25733)Time elapsed: 0.011 s
% 1.66/1.44  % (25733)Instructions burned: 20 (million)
% 1.66/1.44  % (25733)------------------------------
% 1.66/1.44  % (25733)------------------------------
% 1.66/1.44  % (25734)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_25610 for (2998ds/779Mi)
% 1.66/1.44  % (25735)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_25610 for (2998ds/19Mi)
% 1.66/1.45  % (25736)lrs+1010_1:1_au=on:s2a=on:sd=1:sgt=50:ss=axioms:i=879:si=on:rtra=on_0 on DTF2THF_25610 for (2998ds/879Mi)
% 1.66/1.45  % (25737)dis+1002_1:128_acc=on:er=filter:i=17:si=on:rtra=on_0 on DTF2THF_25610 for (2998ds/17Mi)
% 1.66/1.45  % (25735)Instruction limit reached!
% 1.66/1.45  % (25735)------------------------------
% 1.66/1.45  % (25735)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.66/1.45  % (25735)Termination reason: Unknown
% 1.66/1.45  % (25735)Termination phase: Saturation
% 1.66/1.45  
% 1.66/1.45  % (25735)Memory used [KB]: 5500
% 1.66/1.45  % (25735)Time elapsed: 0.010 s
% 1.66/1.45  % (25735)Instructions burned: 19 (million)
% 1.66/1.45  % (25735)------------------------------
% 1.66/1.45  % (25735)------------------------------
% 1.66/1.45  % (25737)Instruction limit reached!
% 1.66/1.45  % (25737)------------------------------
% 1.66/1.45  % (25737)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.66/1.45  % (25737)Termination reason: Unknown
% 1.66/1.45  % (25737)Termination phase: Saturation
% 1.66/1.45  
% 1.66/1.45  % (25737)Memory used [KB]: 5628
% 1.66/1.45  % (25737)Time elapsed: 0.010 s
% 1.66/1.45  % (25737)Instructions burned: 18 (million)
% 1.66/1.45  % (25737)------------------------------
% 1.66/1.45  % (25737)------------------------------
% 1.66/1.46  % (25736)Refutation not found, incomplete strategy
% 1.66/1.46  % (25736)------------------------------
% 1.66/1.46  % (25736)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.66/1.46  % (25736)Termination reason: Refutation not found, incomplete strategy
% 1.66/1.46  
% 1.66/1.46  
% 1.66/1.46  % (25736)Memory used [KB]: 5628
% 1.66/1.46  % (25736)Time elapsed: 0.011 s
% 1.66/1.46  % (25736)Instructions burned: 20 (million)
% 1.66/1.46  % (25736)------------------------------
% 1.66/1.46  % (25736)------------------------------
% 1.66/1.46  % (25738)ott+21_1:1_apa=on:au=on:cnfonf=off:sos=on:i=3:si=on:rtra=on_0 on DTF2THF_25610 for (2998ds/3Mi)
% 1.66/1.46  % (25738)Instruction limit reached!
% 1.66/1.46  % (25738)------------------------------
% 1.66/1.46  % (25738)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.66/1.46  % (25738)Termination reason: Unknown
% 1.66/1.46  % (25738)Termination phase: Preprocessing 3
% 1.66/1.46  
% 1.66/1.46  % (25738)Memory used [KB]: 1023
% 1.66/1.46  % (25738)Time elapsed: 0.003 s
% 1.66/1.46  % (25738)Instructions burned: 4 (million)
% 1.66/1.46  % (25738)------------------------------
% 1.66/1.46  % (25738)------------------------------
% 1.66/1.46  % (25734)Refutation not found, incomplete strategy
% 1.66/1.46  % (25734)------------------------------
% 1.66/1.46  % (25734)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.66/1.46  % (25734)Termination reason: Refutation not found, incomplete strategy
% 1.66/1.46  
% 1.66/1.46  
% 1.66/1.46  % (25734)Memory used [KB]: 5628
% 1.66/1.46  % (25734)Time elapsed: 0.016 s
% 1.66/1.46  % (25734)Instructions burned: 30 (million)
% 1.66/1.46  % (25734)------------------------------
% 1.66/1.46  % (25734)------------------------------
% 1.66/1.46  % (25727)First to succeed.
% 1.66/1.47  % (25739)lrs+1010_1:8_cnfonf=off:hud=1:inj=on:tnu=5:i=30:si=on:rtra=on_0 on DTF2THF_25610 for (2998ds/30Mi)
% 1.66/1.47  % (25727)Refutation found. Thanks to Tanya!
% 1.66/1.47  % SZS status Theorem for DTF2THF_25610
% 1.66/1.47  % SZS output start Proof for DTF2THF_25610
% 1.66/1.47  thf(func_def_0, type, in: $i > $i > $o).
% 1.66/1.47  thf(func_def_2, type, setadjoin: $i > $i > $i).
% 1.66/1.47  thf(func_def_3, type, dsetconstr: $i > ($i > $o) > $i).
% 1.66/1.47  thf(func_def_4, type, singleton: $i > $o).
% 1.66/1.47  thf(func_def_41, type, ph21: !>[X0: $tType]:(X0)).
% 1.66/1.47  thf(f606,plain,(
% 1.66/1.47    $false),
% 1.66/1.47    inference(avatar_sat_refutation,[status(thm)],[f185,f193,f280,f414,f415,f544,f605])).
% 1.66/1.47  thf(f605,plain,(
% 1.66/1.47    spl20_7 | ~spl20_15),
% 1.66/1.47    inference(avatar_contradiction_clause,[status(thm)],[f604])).
% 1.66/1.47  thf(f604,plain,(
% 1.66/1.47    $false | (spl20_7 | ~spl20_15)),
% 1.66/1.47    inference(trivial_inequality_removal,[status(thm)],[f603])).
% 1.66/1.47  thf(f603,plain,(
% 1.66/1.47    ($true = $false) | (spl20_7 | ~spl20_15)),
% 1.66/1.47    inference(forward_demodulation,[status(thm)],[f602,f411])).
% 1.66/1.47  thf(f411,plain,(
% 1.66/1.47    (sK12 = $false) | ~spl20_15),
% 1.66/1.47    inference(avatar_component_clause,[status(thm)],[f409])).
% 1.66/1.47  thf(f409,definition,(
% 1.66/1.47    spl20_15 <=> (sK12 = $false)),
% 1.66/1.47    introduced(definition,[new_symbols(naming,[spl20_15])],[avatar_definition])).
% 1.66/1.47  thf(f602,plain,(
% 1.66/1.47    ($true = sK12) | (spl20_7 | ~spl20_15)),
% 1.66/1.47    inference(subsumption_resolution,[status(thm)],[f581,f601])).
% 1.66/1.47  thf(f601,plain,(
% 1.66/1.47    (sK15 = sK24) | (spl20_7 | ~spl20_15)),
% 1.66/1.47    inference(trivial_inequality_removal,[status(thm)],[f600])).
% 1.66/1.47  thf(f600,plain,(
% 1.66/1.47    ($true = $false) | (sK15 = sK24) | (spl20_7 | ~spl20_15)),
% 1.66/1.47    inference(forward_demodulation,[status(thm)],[f599,f411])).
% 1.66/1.47  thf(f599,plain,(
% 1.66/1.47    ($true = sK12) | (sK15 = sK24) | spl20_7),
% 1.66/1.47    inference(duplicate_literal_removal,[status(thm)],[f598])).
% 1.66/1.47  thf(f598,plain,(
% 1.66/1.47    ($true = sK12) | (sK15 = sK24) | (sK15 = sK24) | spl20_7),
% 1.66/1.47    inference(equality_proxy_clausification,[status(thm)],[f595])).
% 1.66/1.47  thf(f595,plain,(
% 1.66/1.47    ($true = (sK15 = sK24)) | (sK15 = sK24) | ($true = sK12) | spl20_7),
% 1.66/1.47    inference(binary_proxy_clausification,[status(thm)],[f586])).
% 1.66/1.47  thf(f586,plain,(
% 1.66/1.47    (sK15 = sK24) | ($true = sK12) | ($true = ((~ sK12) & (sK15 = sK24))) | spl20_7),
% 1.66/1.47    inference(binary_proxy_clausification,[status(thm)],[f585])).
% 1.66/1.47  thf(f585,plain,(
% 1.66/1.47    ($true = ((sK14 = sK24) & sK12)) | ($true = ((~ sK12) & (sK15 = sK24))) | (sK15 = sK24) | spl20_7),
% 1.66/1.47    inference(binary_proxy_clausification,[status(thm)],[f584])).
% 1.66/1.47  thf(f584,plain,(
% 1.66/1.47    (sK15 = sK24) | ($true = (((~ sK12) & (sK15 = sK24)) | ((sK14 = sK24) & sK12))) | spl20_7),
% 1.66/1.47    inference(equality_proxy_clausification,[status(thm)],[f573])).
% 1.66/1.47  thf(f573,plain,(
% 1.66/1.47    ($true = (sK15 = sK24)) | ($true = (((~ sK12) & (sK15 = sK24)) | ((sK14 = sK24) & sK12))) | spl20_7),
% 1.66/1.47    inference(binary_proxy_clausification,[status(thm)],[f572])).
% 1.66/1.47  thf(f572,plain,(
% 1.66/1.47    ((sK15 = sK24) != (((~ sK12) & (sK15 = sK24)) | ((sK14 = sK24) & sK12))) | spl20_7),
% 1.66/1.47    inference(beta_eta_normalization,[status(thm)],[f571])).
% 1.66/1.47  thf(f571,plain,(
% 1.66/1.47    ((sK15 = sK24) != ((^[Y0 : $i]: (((~ sK12) & (sK15 = Y0)) | ((sK14 = Y0) & sK12))) @ sK24)) | spl20_7),
% 1.66/1.47    inference(negative_extensionality,[status(thm)],[f189])).
% 1.66/1.47  thf(f189,plain,(
% 1.66/1.47    ((= @ sK15) != (^[Y0 : $i]: (((~ sK12) & (sK15 = Y0)) | ((sK14 = Y0) & sK12)))) | spl20_7),
% 1.66/1.47    inference(avatar_component_clause,[status(thm)],[f187])).
% 1.66/1.47  thf(f187,definition,(
% 1.66/1.47    spl20_7 <=> ((= @ sK15) = (^[Y0 : $i]: (((~ sK12) & (sK15 = Y0)) | ((sK14 = Y0) & sK12))))),
% 1.66/1.47    introduced(definition,[new_symbols(naming,[spl20_7])],[avatar_definition])).
% 1.66/1.47  thf(f581,plain,(
% 1.66/1.47    (sK15 != sK24) | ($true = sK12) | spl20_7),
% 1.66/1.47    inference(duplicate_literal_removal,[status(thm)],[f580])).
% 1.66/1.47  thf(f580,plain,(
% 1.66/1.47    (sK15 != sK24) | ($true = sK12) | (sK15 != sK24) | spl20_7),
% 1.66/1.47    inference(equality_proxy_clausification,[status(thm)],[f579])).
% 1.66/1.47  thf(f579,plain,(
% 1.66/1.47    ((sK15 = sK24) = $false) | (sK15 != sK24) | ($true = sK12) | spl20_7),
% 1.66/1.47    inference(not_proxy_clausification,[status(thm)],[f578])).
% 1.66/1.47  thf(f578,plain,(
% 1.66/1.47    (sK15 != sK24) | ((~ sK12) = $false) | ((sK15 = sK24) = $false) | spl20_7),
% 1.66/1.47    inference(binary_proxy_clausification,[status(thm)],[f577])).
% 1.66/1.47  thf(f577,plain,(
% 1.66/1.47    (sK15 != sK24) | ($false = ((~ sK12) & (sK15 = sK24))) | spl20_7),
% 1.66/1.47    inference(binary_proxy_clausification,[status(thm)],[f575])).
% 1.66/1.47  thf(f575,plain,(
% 1.66/1.47    (sK15 != sK24) | ((((~ sK12) & (sK15 = sK24)) | ((sK14 = sK24) & sK12)) = $false) | spl20_7),
% 1.66/1.47    inference(equality_proxy_clausification,[status(thm)],[f574])).
% 1.66/1.47  thf(f574,plain,(
% 1.66/1.47    ((sK15 = sK24) = $false) | ((((~ sK12) & (sK15 = sK24)) | ((sK14 = sK24) & sK12)) = $false) | spl20_7),
% 1.66/1.47    inference(binary_proxy_clausification,[status(thm)],[f572])).
% 1.66/1.47  thf(f544,plain,(
% 1.66/1.47    ~spl20_8),
% 1.66/1.47    inference(avatar_contradiction_clause,[status(thm)],[f543])).
% 1.66/1.47  thf(f543,plain,(
% 1.66/1.47    $false | ~spl20_8),
% 1.66/1.47    inference(trivial_inequality_removal,[status(thm)],[f542])).
% 1.66/1.47  thf(f542,plain,(
% 1.66/1.47    ($true = $false) | ~spl20_8),
% 1.66/1.47    inference(backward_demodulation,[status(thm)],[f198,f541])).
% 1.66/1.47  thf(f541,plain,(
% 1.66/1.47    ((in @ sK15 @ (setadjoin @ sK15 @ emptyset)) = $false) | ~spl20_8),
% 1.66/1.47    inference(equality_resolution,[status(thm)],[f192])).
% 1.66/1.47  thf(f192,plain,(
% 1.66/1.47    ( ! [X0 : $i] : (((setadjoin @ sK15 @ emptyset) != (setadjoin @ X0 @ emptyset)) | ((in @ X0 @ (setadjoin @ sK15 @ emptyset)) = $false)) ) | ~spl20_8),
% 1.66/1.47    inference(avatar_component_clause,[status(thm)],[f191])).
% 1.66/1.47  thf(f191,definition,(
% 1.66/1.47    spl20_8 <=> ! [X0 : $i] : (((setadjoin @ sK15 @ emptyset) != (setadjoin @ X0 @ emptyset)) | ((in @ X0 @ (setadjoin @ sK15 @ emptyset)) = $false))),
% 1.66/1.47    introduced(definition,[new_symbols(naming,[spl20_8])],[avatar_definition])).
% 1.66/1.47  thf(f198,plain,(
% 1.66/1.47    ($true = (in @ sK15 @ (setadjoin @ sK15 @ emptyset)))),
% 1.66/1.47    inference(forward_demodulation,[status(thm)],[f197,f132])).
% 1.66/1.47  thf(f132,plain,(
% 1.66/1.47    ((setadjoin @ sK15 @ emptyset) = (dsetconstr @ sK13 @ (= @ sK15)))),
% 1.66/1.47    inference(trivial_inequality_removal,[status(thm)],[f131])).
% 1.66/1.47  thf(f131,plain,(
% 1.66/1.47    ((setadjoin @ sK15 @ emptyset) = (dsetconstr @ sK13 @ (= @ sK15))) | ($true != $true)),
% 1.66/1.47    inference(superposition,[status(thm)],[f129,f75])).
% 1.66/1.47  thf(f75,plain,(
% 1.66/1.47    ($true = (in @ sK15 @ sK13))),
% 1.66/1.47    inference(cnf_transformation,[status(thm)],[f50])).
% 1.66/1.47  thf(f50,plain,(
% 1.66/1.47    (iffalseProp2 = $true) & (iftrueProp1 = $true) & (iftrueProp2 = $true) & ((($true = (in @ sK15 @ sK13)) & ($true != (singleton @ (dsetconstr @ sK13 @ (^[Y0 : $i]: (((~ sK12) & (sK15 = Y0)) | ((sK14 = Y0) & sK12))))))) & ($true = (in @ sK14 @ sK13))) & (iffalseProp1 = $true)),
% 1.66/1.47    inference(skolemisation,[status(esa),new_symbols(skolem,[sK12,sK13,sK14,sK15])],[f32,f49,f48])).
% 1.66/1.47  thf(f48,plain,(
% 1.66/1.47    ? [X0 : $o,X1 : $i,X2 : $i] : (? [X3 : $i] : (($true = (in @ X3 @ X1)) & ($true != (singleton @ (dsetconstr @ X1 @ (^[Y0 : $i]: (((~ X0) & (X3 = Y0)) | ((X2 = Y0) & X0))))))) & ($true = (in @ X2 @ X1))) => (? [X3 : $i] : (($true = (in @ X3 @ sK13)) & ($true != (singleton @ (dsetconstr @ sK13 @ (^[Y0 : $i]: (((~ sK12) & (X3 = Y0)) | ((sK14 = Y0) & sK12))))))) & ($true = (in @ sK14 @ sK13)))),
% 1.66/1.47    introduced(definition,[],[choice_axiom])).
% 1.66/1.47  thf(f49,plain,(
% 1.66/1.47    ? [X3 : $i] : (($true = (in @ X3 @ sK13)) & ($true != (singleton @ (dsetconstr @ sK13 @ (^[Y0 : $i]: (((~ sK12) & (X3 = Y0)) | ((sK14 = Y0) & sK12))))))) => (($true = (in @ sK15 @ sK13)) & ($true != (singleton @ (dsetconstr @ sK13 @ (^[Y0 : $i]: (((~ sK12) & (sK15 = Y0)) | ((sK14 = Y0) & sK12)))))))),
% 1.66/1.47    introduced(definition,[],[choice_axiom])).
% 1.66/1.47  thf(f32,plain,(
% 1.66/1.47    (iffalseProp2 = $true) & (iftrueProp1 = $true) & (iftrueProp2 = $true) & ? [X0 : $o,X1 : $i,X2 : $i] : (? [X3 : $i] : (($true = (in @ X3 @ X1)) & ($true != (singleton @ (dsetconstr @ X1 @ (^[Y0 : $i]: (((~ X0) & (X3 = Y0)) | ((X2 = Y0) & X0))))))) & ($true = (in @ X2 @ X1))) & (iffalseProp1 = $true)),
% 1.66/1.47    inference(flattening,[status(thm)],[f31])).
% 1.66/1.47  thf(f31,plain,(
% 1.66/1.47    (((? [X0 : $o,X1 : $i,X2 : $i] : (? [X3 : $i] : (($true = (in @ X3 @ X1)) & ($true != (singleton @ (dsetconstr @ X1 @ (^[Y0 : $i]: (((~ X0) & (X3 = Y0)) | ((X2 = Y0) & X0))))))) & ($true = (in @ X2 @ X1))) & (iftrueProp2 = $true)) & (iftrueProp1 = $true)) & (iffalseProp2 = $true)) & (iffalseProp1 = $true)),
% 1.66/1.47    inference(ennf_transformation,[status(thm)],[f10])).
% 1.66/1.47  thf(f10,plain,(
% 1.66/1.47    ~((iffalseProp1 = $true) => ((iffalseProp2 = $true) => ((iftrueProp1 = $true) => ((iftrueProp2 = $true) => ! [X0 : $o,X1 : $i,X2 : $i] : (($true = (in @ X2 @ X1)) => ! [X3 : $i] : (($true = (in @ X3 @ X1)) => ($true = (singleton @ (dsetconstr @ X1 @ (^[Y0 : $i]: (((~ X0) & (X3 = Y0)) | ((X2 = Y0) & X0))))))))))))),
% 1.66/1.47    inference(fool_elimination,[status(thm)],[f9])).
% 1.66/1.47  thf(f9,plain,(
% 1.66/1.47    ~(iffalseProp1 => (iffalseProp2 => (iftrueProp1 => (iftrueProp2 => ! [X0 : $o,X1 : $i,X2 : $i] : ((in @ X2 @ X1) => ! [X3 : $i] : ((in @ X3 @ X1) => (singleton @ (dsetconstr @ X1 @ (^[X4 : $i] : ((X0 & (X2 = X4)) | ((X3 = X4) & ~X0)))))))))))),
% 1.66/1.47    inference(rectify,[status(thm)],[f7])).
% 1.66/1.47  thf(f7,negated_conjecture,(
% 1.66/1.47    ~(iffalseProp1 => (iffalseProp2 => (iftrueProp1 => (iftrueProp2 => ! [X2 : $o,X0 : $i,X1 : $i] : ((in @ X1 @ X0) => ! [X3 : $i] : ((in @ X3 @ X0) => (singleton @ (dsetconstr @ X0 @ (^[X4 : $i] : ((X2 & (X1 = X4)) | ((X3 = X4) & ~X2)))))))))))),
% 1.66/1.47    inference(negated_conjecture,[status(cth)],[f6])).
% 1.66/1.47  thf(f6,conjecture,(
% 1.66/1.47    iffalseProp1 => (iffalseProp2 => (iftrueProp1 => (iftrueProp2 => ! [X2 : $o,X0 : $i,X1 : $i] : ((in @ X1 @ X0) => ! [X3 : $i] : ((in @ X3 @ X0) => (singleton @ (dsetconstr @ X0 @ (^[X4 : $i] : ((X2 & (X1 = X4)) | ((X3 = X4) & ~X2))))))))))),
% 1.66/1.47    file('/export/starexec/sandbox/tmp/tmp.qbkje3dyq5/DTF2THF_25610.p',ifSingleton)).
% 1.66/1.47  thf(f129,plain,(
% 1.66/1.47    ( ! [X0 : $i] : (($true != (in @ X0 @ sK13)) | ((dsetconstr @ sK13 @ (= @ X0)) = (setadjoin @ X0 @ emptyset))) )),
% 1.66/1.47    inference(trivial_inequality_removal,[status(thm)],[f127])).
% 1.66/1.47  thf(f127,plain,(
% 1.66/1.47    ( ! [X0 : $i] : (($true != (in @ X0 @ sK13)) | ($true != $true) | ((dsetconstr @ sK13 @ (= @ X0)) = (setadjoin @ X0 @ emptyset))) )),
% 1.66/1.47    inference(superposition,[status(thm)],[f118,f75])).
% 1.66/1.47  thf(f118,plain,(
% 1.66/1.47    ( ! [X6 : $i,X7 : $i,X5 : $i] : (($true != (in @ X7 @ X6)) | ($true != (in @ X5 @ X6)) | ((setadjoin @ X5 @ emptyset) = (dsetconstr @ X6 @ (= @ X5)))) )),
% 1.66/1.47    inference(beta_eta_normalization,[status(thm)],[f117])).
% 1.66/1.47  thf(f117,plain,(
% 1.66/1.47    ( ! [X6 : $i,X7 : $i,X5 : $i] : (($true != (in @ X5 @ X6)) | ((setadjoin @ X5 @ emptyset) = (dsetconstr @ X6 @ (^[Y0 : $i]: (X5 = Y0)))) | ($true != (in @ X7 @ X6))) )),
% 1.66/1.47    inference(boolean_simplification,[status(thm)],[f116])).
% 1.66/1.47  thf(f116,plain,(
% 1.66/1.47    ( ! [X6 : $i,X7 : $i,X5 : $i] : (($true != (in @ X7 @ X6)) | ($true != (in @ X5 @ X6)) | ((setadjoin @ X5 @ emptyset) = (dsetconstr @ X6 @ (^[Y0 : $i]: ($true & (X5 = Y0)))))) )),
% 1.66/1.47    inference(boolean_simplification,[status(thm)],[f115])).
% 1.66/1.47  thf(f115,plain,(
% 1.66/1.47    ( ! [X6 : $i,X7 : $i,X5 : $i] : (($true != (in @ X5 @ X6)) | ($true != (in @ X7 @ X6)) | ((dsetconstr @ X6 @ (^[Y0 : $i]: (($true & (X5 = Y0)) | $false))) = (setadjoin @ X5 @ emptyset))) )),
% 1.66/1.47    inference(boolean_simplification,[status(thm)],[f114])).
% 1.66/1.47  thf(f114,plain,(
% 1.66/1.47    ( ! [X6 : $i,X7 : $i,X5 : $i] : (($true != (in @ X5 @ X6)) | ((setadjoin @ X5 @ emptyset) = (dsetconstr @ X6 @ (^[Y0 : $i]: (($true & (X5 = Y0)) | ($false & (X7 = Y0)))))) | ($true != (in @ X7 @ X6))) )),
% 1.66/1.47    inference(boolean_simplification,[status(thm)],[f113])).
% 1.66/1.47  thf(f113,plain,(
% 1.66/1.47    ( ! [X6 : $i,X7 : $i,X5 : $i] : (((dsetconstr @ X6 @ (^[Y0 : $i]: (($true & (X5 = Y0)) | ((~ $true) & (X7 = Y0))))) = (setadjoin @ X5 @ emptyset)) | ($true != (in @ X5 @ X6)) | ($true != (in @ X7 @ X6))) )),
% 1.66/1.47    inference(trivial_inequality_removal,[status(thm)],[f106])).
% 1.66/1.47  thf(f106,plain,(
% 1.66/1.47    ( ! [X6 : $i,X7 : $i,X5 : $i] : (($true != (in @ X5 @ X6)) | ((dsetconstr @ X6 @ (^[Y0 : $i]: (($true & (X5 = Y0)) | ((~ $true) & (X7 = Y0))))) = (setadjoin @ X5 @ emptyset)) | ($true != $true) | ($true != (in @ X7 @ X6))) )),
% 1.66/1.47    inference(equality_resolution,[status(thm)],[f104])).
% 1.66/1.47  thf(f104,plain,(
% 1.66/1.47    ( ! [X6 : $i,X7 : $i,X4 : $o,X5 : $i] : (($true != (in @ X5 @ X6)) | ($true != X4) | ($true != (in @ X7 @ X6)) | ((setadjoin @ X5 @ emptyset) = (dsetconstr @ X6 @ (^[Y0 : $i]: ((X4 & (X5 = Y0)) | ((~ X4) & (X7 = Y0)))))) | ($true != $true)) )),
% 1.66/1.47    inference(definition_unfolding,[status(thm)],[f79,f76])).
% 1.66/1.47  thf(f76,plain,(
% 1.66/1.47    (iftrueProp2 = $true)),
% 1.66/1.47    inference(cnf_transformation,[status(thm)],[f50])).
% 1.66/1.47  thf(f79,plain,(
% 1.66/1.47    ( ! [X6 : $i,X7 : $i,X4 : $o,X5 : $i] : (($true != (in @ X5 @ X6)) | ($true != X4) | ($true != (in @ X7 @ X6)) | ((setadjoin @ X5 @ emptyset) = (dsetconstr @ X6 @ (^[Y0 : $i]: ((X4 & (X5 = Y0)) | ((~ X4) & (X7 = Y0)))))) | (iftrueProp2 != $true)) )),
% 1.66/1.47    inference(cnf_transformation,[status(thm)],[f55])).
% 1.66/1.47  thf(f55,plain,(
% 1.66/1.47    ((iftrueProp2 = $true) | (($true = (in @ sK17 @ sK18)) & ((sK16 = $true) & ($true = (in @ sK19 @ sK18)) & ((dsetconstr @ sK18 @ (^[Y0 : $i]: ((sK16 & (sK17 = Y0)) | ((~ sK16) & (sK19 = Y0))))) != (setadjoin @ sK17 @ emptyset))))) & (! [X4 : $o,X5 : $i,X6 : $i] : (($true != (in @ X5 @ X6)) | ! [X7 : $i] : (($true != X4) | ($true != (in @ X7 @ X6)) | ((setadjoin @ X5 @ emptyset) = (dsetconstr @ X6 @ (^[Y0 : $i]: ((X4 & (X5 = Y0)) | ((~ X4) & (X7 = Y0)))))))) | (iftrueProp2 != $true))),
% 1.66/1.47    inference(skolemisation,[status(esa),new_symbols(skolem,[sK16,sK17,sK18,sK19])],[f52,f54,f53])).
% 1.66/1.47  thf(f53,plain,(
% 1.66/1.47    ? [X0 : $o,X1 : $i,X2 : $i] : (($true = (in @ X1 @ X2)) & ? [X3 : $i] : (($true = X0) & ($true = (in @ X3 @ X2)) & ((setadjoin @ X1 @ emptyset) != (dsetconstr @ X2 @ (^[Y0 : $i]: ((X0 & (X1 = Y0)) | ((~ X0) & (X3 = Y0)))))))) => (($true = (in @ sK17 @ sK18)) & ? [X3 : $i] : ((sK16 = $true) & ($true = (in @ X3 @ sK18)) & ((dsetconstr @ sK18 @ (^[Y0 : $i]: ((sK16 & (sK17 = Y0)) | ((~ sK16) & (X3 = Y0))))) != (setadjoin @ sK17 @ emptyset))))),
% 1.66/1.47    introduced(definition,[],[choice_axiom])).
% 1.66/1.47  thf(f54,plain,(
% 1.66/1.47    ? [X3 : $i] : ((sK16 = $true) & ($true = (in @ X3 @ sK18)) & ((dsetconstr @ sK18 @ (^[Y0 : $i]: ((sK16 & (sK17 = Y0)) | ((~ sK16) & (X3 = Y0))))) != (setadjoin @ sK17 @ emptyset))) => ((sK16 = $true) & ($true = (in @ sK19 @ sK18)) & ((dsetconstr @ sK18 @ (^[Y0 : $i]: ((sK16 & (sK17 = Y0)) | ((~ sK16) & (sK19 = Y0))))) != (setadjoin @ sK17 @ emptyset)))),
% 1.66/1.47    introduced(definition,[],[choice_axiom])).
% 1.66/1.47  thf(f52,plain,(
% 1.66/1.47    ((iftrueProp2 = $true) | ? [X0 : $o,X1 : $i,X2 : $i] : (($true = (in @ X1 @ X2)) & ? [X3 : $i] : (($true = X0) & ($true = (in @ X3 @ X2)) & ((setadjoin @ X1 @ emptyset) != (dsetconstr @ X2 @ (^[Y0 : $i]: ((X0 & (X1 = Y0)) | ((~ X0) & (X3 = Y0))))))))) & (! [X4 : $o,X5 : $i,X6 : $i] : (($true != (in @ X5 @ X6)) | ! [X7 : $i] : (($true != X4) | ($true != (in @ X7 @ X6)) | ((setadjoin @ X5 @ emptyset) = (dsetconstr @ X6 @ (^[Y0 : $i]: ((X4 & (X5 = Y0)) | ((~ X4) & (X7 = Y0)))))))) | (iftrueProp2 != $true))),
% 1.66/1.47    inference(rectify,[status(thm)],[f51])).
% 1.66/1.47  thf(f51,plain,(
% 1.66/1.47    ((iftrueProp2 = $true) | ? [X0 : $o,X1 : $i,X2 : $i] : (($true = (in @ X1 @ X2)) & ? [X3 : $i] : (($true = X0) & ($true = (in @ X3 @ X2)) & ((setadjoin @ X1 @ emptyset) != (dsetconstr @ X2 @ (^[Y0 : $i]: ((X0 & (X1 = Y0)) | ((~ X0) & (X3 = Y0))))))))) & (! [X0 : $o,X1 : $i,X2 : $i] : (($true != (in @ X1 @ X2)) | ! [X3 : $i] : (($true != X0) | ($true != (in @ X3 @ X2)) | ((setadjoin @ X1 @ emptyset) = (dsetconstr @ X2 @ (^[Y0 : $i]: ((X0 & (X1 = Y0)) | ((~ X0) & (X3 = Y0)))))))) | (iftrueProp2 != $true))),
% 1.66/1.47    inference(nnf_transformation,[status(thm)],[f28])).
% 1.66/1.47  thf(f28,plain,(
% 1.66/1.47    (iftrueProp2 = $true) <=> ! [X0 : $o,X1 : $i,X2 : $i] : (($true != (in @ X1 @ X2)) | ! [X3 : $i] : (($true != X0) | ($true != (in @ X3 @ X2)) | ((setadjoin @ X1 @ emptyset) = (dsetconstr @ X2 @ (^[Y0 : $i]: ((X0 & (X1 = Y0)) | ((~ X0) & (X3 = Y0))))))))),
% 1.66/1.47    inference(flattening,[status(thm)],[f27])).
% 1.66/1.47  thf(f27,plain,(
% 1.66/1.47    (iftrueProp2 = $true) <=> ! [X0 : $o,X1 : $i,X2 : $i] : (! [X3 : $i] : ((((setadjoin @ X1 @ emptyset) = (dsetconstr @ X2 @ (^[Y0 : $i]: ((X0 & (X1 = Y0)) | ((~ X0) & (X3 = Y0)))))) | ($true != X0)) | ($true != (in @ X3 @ X2))) | ($true != (in @ X1 @ X2)))),
% 1.66/1.47    inference(ennf_transformation,[status(thm)],[f14])).
% 1.66/1.47  thf(f14,plain,(
% 1.66/1.47    (iftrueProp2 = $true) <=> ! [X0 : $o,X1 : $i,X2 : $i] : (($true = (in @ X1 @ X2)) => ! [X3 : $i] : (($true = (in @ X3 @ X2)) => (($true = X0) => ((setadjoin @ X1 @ emptyset) = (dsetconstr @ X2 @ (^[Y0 : $i]: ((X0 & (X1 = Y0)) | ((~ X0) & (X3 = Y0)))))))))),
% 1.66/1.47    inference(fool_elimination,[status(thm)],[f13])).
% 1.66/1.47  thf(f13,plain,(
% 1.66/1.47    (! [X0 : $o,X1 : $i,X2 : $i] : ((in @ X1 @ X2) => ! [X3 : $i] : ((in @ X3 @ X2) => (X0 => ((dsetconstr @ X2 @ (^[X4 : $i] : (((X3 = X4) & ~X0) | ((X1 = X4) & X0)))) = (setadjoin @ X1 @ emptyset))))) = iftrueProp2)),
% 1.66/1.47    inference(rectify,[status(thm)],[f5])).
% 1.66/1.47  thf(f5,axiom,(
% 1.66/1.47    (! [X2 : $o,X1 : $i,X0 : $i] : ((in @ X1 @ X0) => ! [X3 : $i] : ((in @ X3 @ X0) => (X2 => ((dsetconstr @ X0 @ (^[X4 : $i] : (((X3 = X4) & ~X2) | ((X1 = X4) & X2)))) = (setadjoin @ X1 @ emptyset))))) = iftrueProp2)),
% 1.66/1.47    file('/export/starexec/sandbox/tmp/tmp.qbkje3dyq5/DTF2THF_25610.p',iftrueProp2)).
% 1.66/1.47  thf(f197,plain,(
% 1.66/1.47    ($true = (in @ sK15 @ (dsetconstr @ sK13 @ (= @ sK15))))),
% 1.66/1.47    inference(trivial_inequality_removal,[status(thm)],[f195])).
% 1.66/1.47  thf(f195,plain,(
% 1.66/1.47    ($true != $true) | ($true = (in @ sK15 @ (dsetconstr @ sK13 @ (= @ sK15))))),
% 1.66/1.47    inference(superposition,[status(thm)],[f137,f75])).
% 1.66/1.47  thf(f137,plain,(
% 1.66/1.47    ( ! [X0 : $i] : (($true != (in @ X0 @ sK13)) | ($true = (in @ X0 @ (dsetconstr @ sK13 @ (= @ X0))))) )),
% 1.66/1.47    inference(trivial_inequality_removal,[status(thm)],[f135])).
% 1.66/1.47  thf(f135,plain,(
% 1.66/1.47    ( ! [X0 : $i] : (($true = (in @ X0 @ (dsetconstr @ sK13 @ (= @ X0)))) | ($true != $true) | ($true != (in @ X0 @ sK13))) )),
% 1.66/1.47    inference(superposition,[status(thm)],[f125,f75])).
% 1.66/1.47  thf(f125,plain,(
% 1.66/1.47    ( ! [X2 : $i,X3 : $i,X1 : $i] : (($true != (in @ X3 @ X1)) | ($true != (in @ X2 @ X1)) | ($true = (in @ X2 @ (dsetconstr @ X1 @ (= @ X2))))) )),
% 1.66/1.47    inference(beta_eta_normalization,[status(thm)],[f124])).
% 1.66/1.47  thf(f124,plain,(
% 1.66/1.47    ( ! [X2 : $i,X3 : $i,X1 : $i] : (($true != (in @ X2 @ X1)) | ($true != (in @ X3 @ X1)) | ($true = (in @ X2 @ (dsetconstr @ X1 @ (^[Y0 : $i]: (X2 = Y0)))))) )),
% 1.66/1.47    inference(boolean_simplification,[status(thm)],[f123])).
% 1.66/1.47  thf(f123,plain,(
% 1.66/1.47    ( ! [X2 : $i,X3 : $i,X1 : $i] : (($true = (in @ X2 @ (dsetconstr @ X1 @ (^[Y0 : $i]: ($true & (X2 = Y0)))))) | ($true != (in @ X2 @ X1)) | ($true != (in @ X3 @ X1))) )),
% 1.66/1.47    inference(boolean_simplification,[status(thm)],[f122])).
% 1.66/1.47  thf(f122,plain,(
% 1.66/1.47    ( ! [X2 : $i,X3 : $i,X1 : $i] : (($true != (in @ X3 @ X1)) | ($true != (in @ X2 @ X1)) | ($true = (in @ X2 @ (dsetconstr @ X1 @ (^[Y0 : $i]: (($true & (X2 = Y0)) | $false)))))) )),
% 1.66/1.47    inference(boolean_simplification,[status(thm)],[f121])).
% 1.66/1.47  thf(f121,plain,(
% 1.66/1.47    ( ! [X2 : $i,X3 : $i,X1 : $i] : (($true = (in @ X2 @ (dsetconstr @ X1 @ (^[Y0 : $i]: (($true & (X2 = Y0)) | ((X3 = Y0) & $false)))))) | ($true != (in @ X2 @ X1)) | ($true != (in @ X3 @ X1))) )),
% 1.66/1.47    inference(boolean_simplification,[status(thm)],[f120])).
% 1.66/1.47  thf(f120,plain,(
% 1.66/1.47    ( ! [X2 : $i,X3 : $i,X1 : $i] : (($true != (in @ X2 @ X1)) | ($true = (in @ X2 @ (dsetconstr @ X1 @ (^[Y0 : $i]: (($true & (X2 = Y0)) | ((X3 = Y0) & (~ $true))))))) | ($true != (in @ X3 @ X1))) )),
% 1.66/1.47    inference(trivial_inequality_removal,[status(thm)],[f105])).
% 1.66/1.47  thf(f105,plain,(
% 1.66/1.47    ( ! [X2 : $i,X3 : $i,X1 : $i] : (($true != (in @ X3 @ X1)) | ($true != $true) | ($true != (in @ X2 @ X1)) | ($true = (in @ X2 @ (dsetconstr @ X1 @ (^[Y0 : $i]: (($true & (X2 = Y0)) | ((X3 = Y0) & (~ $true)))))))) )),
% 1.66/1.47    inference(equality_resolution,[status(thm)],[f94])).
% 1.66/1.47  thf(f94,plain,(
% 1.66/1.47    ( ! [X2 : $i,X3 : $i,X0 : $o,X1 : $i] : (($true != (in @ X2 @ X1)) | ($true != X0) | ($true != (in @ X3 @ X1)) | ($true = (in @ X2 @ (dsetconstr @ X1 @ (^[Y0 : $i]: ((X0 & (X2 = Y0)) | ((X3 = Y0) & (~ X0))))))) | ($true != $true)) )),
% 1.66/1.47    inference(definition_unfolding,[status(thm)],[f71,f77])).
% 1.66/1.47  thf(f77,plain,(
% 1.66/1.47    (iftrueProp1 = $true)),
% 1.66/1.47    inference(cnf_transformation,[status(thm)],[f50])).
% 1.66/1.47  thf(f71,plain,(
% 1.66/1.47    ( ! [X2 : $i,X3 : $i,X0 : $o,X1 : $i] : (($true != (in @ X2 @ X1)) | ($true != X0) | ($true != (in @ X3 @ X1)) | ($true = (in @ X2 @ (dsetconstr @ X1 @ (^[Y0 : $i]: ((X0 & (X2 = Y0)) | ((X3 = Y0) & (~ X0))))))) | (iftrueProp1 != $true)) )),
% 1.66/1.47    inference(cnf_transformation,[status(thm)],[f47])).
% 1.66/1.47  thf(f47,plain,(
% 1.66/1.47    (! [X0 : $o,X1 : $i,X2 : $i] : (($true != (in @ X2 @ X1)) | ! [X3 : $i] : (($true != X0) | ($true != (in @ X3 @ X1)) | ($true = (in @ X2 @ (dsetconstr @ X1 @ (^[Y0 : $i]: ((X0 & (X2 = Y0)) | ((X3 = Y0) & (~ X0))))))))) | (iftrueProp1 != $true)) & ((iftrueProp1 = $true) | (($true = (in @ sK10 @ sK9)) & (($true = sK8) & ($true = (in @ sK11 @ sK9)) & ($true != (in @ sK10 @ (dsetconstr @ sK9 @ (^[Y0 : $i]: ((sK8 & (sK10 = Y0)) | ((sK11 = Y0) & (~ sK8))))))))))),
% 1.66/1.47    inference(skolemisation,[status(esa),new_symbols(skolem,[sK8,sK9,sK10,sK11])],[f44,f46,f45])).
% 1.66/1.47  thf(f45,plain,(
% 1.66/1.47    ? [X4 : $o,X5 : $i,X6 : $i] : (((in @ X6 @ X5) = $true) & ? [X7 : $i] : (($true = X4) & ($true = (in @ X7 @ X5)) & ($true != (in @ X6 @ (dsetconstr @ X5 @ (^[Y0 : $i]: ((X4 & (X6 = Y0)) | ((X7 = Y0) & (~ X4))))))))) => (($true = (in @ sK10 @ sK9)) & ? [X7 : $i] : (($true = sK8) & ((in @ X7 @ sK9) = $true) & ($true != (in @ sK10 @ (dsetconstr @ sK9 @ (^[Y0 : $i]: ((sK8 & (sK10 = Y0)) | ((X7 = Y0) & (~ sK8)))))))))),
% 1.66/1.47    introduced(definition,[],[choice_axiom])).
% 1.66/1.47  thf(f46,plain,(
% 1.66/1.47    ? [X7 : $i] : (($true = sK8) & ((in @ X7 @ sK9) = $true) & ($true != (in @ sK10 @ (dsetconstr @ sK9 @ (^[Y0 : $i]: ((sK8 & (sK10 = Y0)) | ((X7 = Y0) & (~ sK8)))))))) => (($true = sK8) & ($true = (in @ sK11 @ sK9)) & ($true != (in @ sK10 @ (dsetconstr @ sK9 @ (^[Y0 : $i]: ((sK8 & (sK10 = Y0)) | ((sK11 = Y0) & (~ sK8))))))))),
% 1.66/1.47    introduced(definition,[],[choice_axiom])).
% 1.66/1.47  thf(f44,plain,(
% 1.66/1.47    (! [X0 : $o,X1 : $i,X2 : $i] : (($true != (in @ X2 @ X1)) | ! [X3 : $i] : (($true != X0) | ($true != (in @ X3 @ X1)) | ($true = (in @ X2 @ (dsetconstr @ X1 @ (^[Y0 : $i]: ((X0 & (X2 = Y0)) | ((X3 = Y0) & (~ X0))))))))) | (iftrueProp1 != $true)) & ((iftrueProp1 = $true) | ? [X4 : $o,X5 : $i,X6 : $i] : (((in @ X6 @ X5) = $true) & ? [X7 : $i] : (($true = X4) & ($true = (in @ X7 @ X5)) & ($true != (in @ X6 @ (dsetconstr @ X5 @ (^[Y0 : $i]: ((X4 & (X6 = Y0)) | ((X7 = Y0) & (~ X4))))))))))),
% 1.66/1.47    inference(rectify,[status(thm)],[f43])).
% 1.66/1.47  thf(f43,plain,(
% 1.66/1.47    (! [X0 : $o,X1 : $i,X2 : $i] : (($true != (in @ X2 @ X1)) | ! [X3 : $i] : (($true != X0) | ($true != (in @ X3 @ X1)) | ($true = (in @ X2 @ (dsetconstr @ X1 @ (^[Y0 : $i]: ((X0 & (X2 = Y0)) | ((X3 = Y0) & (~ X0))))))))) | (iftrueProp1 != $true)) & ((iftrueProp1 = $true) | ? [X0 : $o,X1 : $i,X2 : $i] : (($true = (in @ X2 @ X1)) & ? [X3 : $i] : (($true = X0) & ($true = (in @ X3 @ X1)) & ($true != (in @ X2 @ (dsetconstr @ X1 @ (^[Y0 : $i]: ((X0 & (X2 = Y0)) | ((X3 = Y0) & (~ X0))))))))))),
% 1.66/1.47    inference(nnf_transformation,[status(thm)],[f30])).
% 1.66/1.47  thf(f30,plain,(
% 1.66/1.47    ! [X0 : $o,X1 : $i,X2 : $i] : (($true != (in @ X2 @ X1)) | ! [X3 : $i] : (($true != X0) | ($true != (in @ X3 @ X1)) | ($true = (in @ X2 @ (dsetconstr @ X1 @ (^[Y0 : $i]: ((X0 & (X2 = Y0)) | ((X3 = Y0) & (~ X0))))))))) <=> (iftrueProp1 = $true)),
% 1.66/1.47    inference(flattening,[status(thm)],[f29])).
% 1.66/1.47  thf(f29,plain,(
% 1.66/1.47    (iftrueProp1 = $true) <=> ! [X0 : $o,X1 : $i,X2 : $i] : (! [X3 : $i] : ((($true = (in @ X2 @ (dsetconstr @ X1 @ (^[Y0 : $i]: ((X0 & (X2 = Y0)) | ((X3 = Y0) & (~ X0))))))) | ($true != X0)) | ($true != (in @ X3 @ X1))) | ($true != (in @ X2 @ X1)))),
% 1.66/1.47    inference(ennf_transformation,[status(thm)],[f18])).
% 1.66/1.47  thf(f18,plain,(
% 1.66/1.47    (iftrueProp1 = $true) <=> ! [X0 : $o,X1 : $i,X2 : $i] : (($true = (in @ X2 @ X1)) => ! [X3 : $i] : (($true = (in @ X3 @ X1)) => (($true = X0) => ($true = (in @ X2 @ (dsetconstr @ X1 @ (^[Y0 : $i]: ((X0 & (X2 = Y0)) | ((X3 = Y0) & (~ X0))))))))))),
% 1.66/1.47    inference(fool_elimination,[status(thm)],[f17])).
% 1.66/1.47  thf(f17,plain,(
% 1.66/1.47    (! [X0 : $o,X1 : $i,X2 : $i] : ((in @ X2 @ X1) => ! [X3 : $i] : ((in @ X3 @ X1) => (X0 => (in @ X2 @ (dsetconstr @ X1 @ (^[X4 : $i] : ((~X0 & (X3 = X4)) | ((X2 = X4) & X0)))))))) = iftrueProp1)),
% 1.66/1.47    inference(rectify,[status(thm)],[f4])).
% 1.66/1.47  thf(f4,axiom,(
% 1.66/1.47    (! [X2 : $o,X0 : $i,X1 : $i] : ((in @ X1 @ X0) => ! [X3 : $i] : ((in @ X3 @ X0) => (X2 => (in @ X1 @ (dsetconstr @ X0 @ (^[X4 : $i] : ((~X2 & (X3 = X4)) | ((X1 = X4) & X2)))))))) = iftrueProp1)),
% 1.66/1.47    file('/export/starexec/sandbox/tmp/tmp.qbkje3dyq5/DTF2THF_25610.p',iftrueProp1)).
% 1.66/1.47  thf(f415,plain,(
% 1.66/1.47    ~spl20_12 | spl20_15 | spl20_5),
% 1.66/1.47    inference(avatar_split_clause,[status(thm)],[f379,f179,f409,f396])).
% 1.66/1.47  thf(f396,definition,(
% 1.66/1.47    spl20_12 <=> (sK23 = sK14)),
% 1.66/1.47    introduced(definition,[new_symbols(naming,[spl20_12])],[avatar_definition])).
% 1.66/1.47  thf(f179,definition,(
% 1.66/1.47    spl20_5 <=> ((^[Y0 : $i]: (((~ sK12) & (sK15 = Y0)) | ((sK14 = Y0) & sK12))) = (= @ sK14))),
% 1.66/1.47    introduced(definition,[new_symbols(naming,[spl20_5])],[avatar_definition])).
% 1.66/1.47  thf(f379,plain,(
% 1.66/1.47    (sK23 != sK14) | (sK12 = $false) | spl20_5),
% 1.66/1.47    inference(duplicate_literal_removal,[status(thm)],[f378])).
% 1.66/1.47  thf(f378,plain,(
% 1.66/1.47    (sK23 != sK14) | (sK23 != sK14) | (sK12 = $false) | spl20_5),
% 1.66/1.47    inference(equality_proxy_clausification,[status(thm)],[f377])).
% 1.66/1.47  thf(f377,plain,(
% 1.66/1.47    (sK12 = $false) | (sK23 != sK14) | ((sK14 = sK23) = $false) | spl20_5),
% 1.66/1.47    inference(binary_proxy_clausification,[status(thm)],[f376])).
% 1.66/1.47  thf(f376,plain,(
% 1.66/1.47    (((sK14 = sK23) & sK12) = $false) | (sK23 != sK14) | spl20_5),
% 1.66/1.47    inference(equality_proxy_clausification,[status(thm)],[f370])).
% 1.66/1.47  thf(f370,plain,(
% 1.66/1.47    ((sK14 = sK23) = $false) | (((sK14 = sK23) & sK12) = $false) | spl20_5),
% 1.66/1.47    inference(binary_proxy_clausification,[status(thm)],[f369])).
% 1.66/1.47  thf(f369,plain,(
% 1.66/1.47    ($false = (((~ sK12) & (sK15 = sK23)) | ((sK14 = sK23) & sK12))) | ((sK14 = sK23) = $false) | spl20_5),
% 1.66/1.47    inference(binary_proxy_clausification,[status(thm)],[f367])).
% 1.66/1.47  thf(f367,plain,(
% 1.66/1.47    ((sK14 = sK23) != (((~ sK12) & (sK15 = sK23)) | ((sK14 = sK23) & sK12))) | spl20_5),
% 1.66/1.47    inference(beta_eta_normalization,[status(thm)],[f366])).
% 1.66/1.47  thf(f366,plain,(
% 1.66/1.47    (((^[Y0 : $i]: (((~ sK12) & (sK15 = Y0)) | ((sK14 = Y0) & sK12))) @ sK23) != (sK14 = sK23)) | spl20_5),
% 1.66/1.47    inference(negative_extensionality,[status(thm)],[f181])).
% 1.66/1.47  thf(f181,plain,(
% 1.66/1.47    ((^[Y0 : $i]: (((~ sK12) & (sK15 = Y0)) | ((sK14 = Y0) & sK12))) != (= @ sK14)) | spl20_5),
% 1.66/1.47    inference(avatar_component_clause,[status(thm)],[f179])).
% 1.66/1.47  thf(f414,plain,(
% 1.66/1.47    spl20_15 | spl20_12 | spl20_5),
% 1.66/1.47    inference(avatar_split_clause,[status(thm)],[f387,f179,f396,f409])).
% 1.66/1.47  thf(f387,plain,(
% 1.66/1.47    (sK12 = $false) | (sK23 = sK14) | spl20_5),
% 1.66/1.47    inference(not_proxy_clausification,[status(thm)],[f386])).
% 1.66/1.47  thf(f386,plain,(
% 1.66/1.47    ($true = (~ sK12)) | (sK23 = sK14) | spl20_5),
% 1.66/1.47    inference(binary_proxy_clausification,[status(thm)],[f384])).
% 1.66/1.47  thf(f384,plain,(
% 1.66/1.47    (sK23 = sK14) | ($true = ((~ sK12) & (sK15 = sK23))) | spl20_5),
% 1.66/1.47    inference(equality_proxy_clausification,[status(thm)],[f383])).
% 1.66/1.47  thf(f383,plain,(
% 1.66/1.47    ($true = (sK14 = sK23)) | ($true = ((~ sK12) & (sK15 = sK23))) | spl20_5),
% 1.66/1.47    inference(duplicate_literal_removal,[status(thm)],[f382])).
% 1.66/1.47  thf(f382,plain,(
% 1.66/1.47    ($true = (sK14 = sK23)) | ($true = ((~ sK12) & (sK15 = sK23))) | ($true = (sK14 = sK23)) | spl20_5),
% 1.66/1.47    inference(binary_proxy_clausification,[status(thm)],[f380])).
% 1.66/1.47  thf(f380,plain,(
% 1.66/1.47    ($true = ((sK14 = sK23) & sK12)) | ($true = ((~ sK12) & (sK15 = sK23))) | ($true = (sK14 = sK23)) | spl20_5),
% 1.66/1.47    inference(binary_proxy_clausification,[status(thm)],[f368])).
% 1.66/1.47  thf(f368,plain,(
% 1.66/1.47    ($true = (((~ sK12) & (sK15 = sK23)) | ((sK14 = sK23) & sK12))) | ($true = (sK14 = sK23)) | spl20_5),
% 1.66/1.47    inference(binary_proxy_clausification,[status(thm)],[f367])).
% 1.66/1.47  thf(f280,plain,(
% 1.66/1.47    ~spl20_6),
% 1.66/1.47    inference(avatar_contradiction_clause,[status(thm)],[f279])).
% 1.66/1.47  thf(f279,plain,(
% 1.66/1.47    $false | ~spl20_6),
% 1.66/1.47    inference(trivial_inequality_removal,[status(thm)],[f278])).
% 1.66/1.47  thf(f278,plain,(
% 1.66/1.47    ($true = $false) | ~spl20_6),
% 1.66/1.47    inference(backward_demodulation,[status(thm)],[f199,f276])).
% 1.66/1.47  thf(f276,plain,(
% 1.66/1.47    ((in @ sK14 @ (setadjoin @ sK14 @ emptyset)) = $false) | ~spl20_6),
% 1.66/1.47    inference(equality_resolution,[status(thm)],[f184])).
% 1.66/1.47  thf(f184,plain,(
% 1.66/1.47    ( ! [X0 : $i] : (((setadjoin @ sK14 @ emptyset) != (setadjoin @ X0 @ emptyset)) | ((in @ X0 @ (setadjoin @ sK14 @ emptyset)) = $false)) ) | ~spl20_6),
% 1.66/1.47    inference(avatar_component_clause,[status(thm)],[f183])).
% 1.66/1.47  thf(f183,definition,(
% 1.66/1.47    spl20_6 <=> ! [X0 : $i] : (((setadjoin @ sK14 @ emptyset) != (setadjoin @ X0 @ emptyset)) | ((in @ X0 @ (setadjoin @ sK14 @ emptyset)) = $false))),
% 1.66/1.47    introduced(definition,[new_symbols(naming,[spl20_6])],[avatar_definition])).
% 1.66/1.47  thf(f199,plain,(
% 1.66/1.47    ($true = (in @ sK14 @ (setadjoin @ sK14 @ emptyset)))),
% 1.66/1.47    inference(forward_demodulation,[status(thm)],[f196,f133])).
% 1.66/1.47  thf(f133,plain,(
% 1.66/1.47    ((setadjoin @ sK14 @ emptyset) = (dsetconstr @ sK13 @ (= @ sK14)))),
% 1.66/1.47    inference(trivial_inequality_removal,[status(thm)],[f130])).
% 1.66/1.47  thf(f130,plain,(
% 1.66/1.47    ((setadjoin @ sK14 @ emptyset) = (dsetconstr @ sK13 @ (= @ sK14))) | ($true != $true)),
% 1.66/1.47    inference(superposition,[status(thm)],[f129,f73])).
% 1.66/1.47  thf(f73,plain,(
% 1.66/1.47    ($true = (in @ sK14 @ sK13))),
% 1.66/1.47    inference(cnf_transformation,[status(thm)],[f50])).
% 1.66/1.47  thf(f196,plain,(
% 1.66/1.47    ($true = (in @ sK14 @ (dsetconstr @ sK13 @ (= @ sK14))))),
% 1.66/1.47    inference(trivial_inequality_removal,[status(thm)],[f194])).
% 1.66/1.47  thf(f194,plain,(
% 1.66/1.47    ($true = (in @ sK14 @ (dsetconstr @ sK13 @ (= @ sK14)))) | ($true != $true)),
% 1.66/1.47    inference(superposition,[status(thm)],[f137,f73])).
% 1.66/1.47  thf(f193,plain,(
% 1.66/1.47    ~spl20_7 | spl20_8),
% 1.66/1.47    inference(avatar_split_clause,[status(thm)],[f177,f191,f187])).
% 1.66/1.47  thf(f177,plain,(
% 1.66/1.47    ( ! [X0 : $i] : (((setadjoin @ sK15 @ emptyset) != (setadjoin @ X0 @ emptyset)) | ((= @ sK15) != (^[Y0 : $i]: (((~ sK12) & (sK15 = Y0)) | ((sK14 = Y0) & sK12)))) | ((in @ X0 @ (setadjoin @ sK15 @ emptyset)) = $false)) )),
% 1.66/1.47    inference(constrained_superposition,[status(thm)],[f111,f132])).
% 1.66/1.47  thf(f111,plain,(
% 1.66/1.47    ( ! [X1 : $i] : (((setadjoin @ X1 @ emptyset) != (dsetconstr @ sK13 @ (^[Y0 : $i]: (((~ sK12) & (sK15 = Y0)) | ((sK14 = Y0) & sK12))))) | ((in @ X1 @ (dsetconstr @ sK13 @ (^[Y0 : $i]: (((~ sK12) & (sK15 = Y0)) | ((sK14 = Y0) & sK12))))) = $false)) )),
% 1.66/1.47    inference(equality_proxy_clausification,[status(thm)],[f110])).
% 1.66/1.47  thf(f110,plain,(
% 1.66/1.47    ( ! [X1 : $i] : (((in @ X1 @ (dsetconstr @ sK13 @ (^[Y0 : $i]: (((~ sK12) & (sK15 = Y0)) | ((sK14 = Y0) & sK12))))) = $false) | (((setadjoin @ X1 @ emptyset) = (dsetconstr @ sK13 @ (^[Y0 : $i]: (((~ sK12) & (sK15 = Y0)) | ((sK14 = Y0) & sK12))))) = $false)) )),
% 1.66/1.47    inference(binary_proxy_clausification,[status(thm)],[f109])).
% 1.66/1.47  thf(f109,plain,(
% 1.66/1.47    ( ! [X1 : $i] : (((((setadjoin @ X1 @ emptyset) = (dsetconstr @ sK13 @ (^[Y0 : $i]: (((~ sK12) & (sK15 = Y0)) | ((sK14 = Y0) & sK12))))) & (in @ X1 @ (dsetconstr @ sK13 @ (^[Y0 : $i]: (((~ sK12) & (sK15 = Y0)) | ((sK14 = Y0) & sK12)))))) = $false)) )),
% 1.66/1.47    inference(beta_eta_normalization,[status(thm)],[f108])).
% 1.66/1.47  thf(f108,plain,(
% 1.66/1.47    ( ! [X1 : $i] : ((((^[Y0 : $i]: (((setadjoin @ Y0 @ emptyset) = (dsetconstr @ sK13 @ (^[Y1 : $i]: (((~ sK12) & (sK15 = Y1)) | ((sK14 = Y1) & sK12))))) & (in @ Y0 @ (dsetconstr @ sK13 @ (^[Y1 : $i]: (((~ sK12) & (sK15 = Y1)) | ((sK14 = Y1) & sK12))))))) @ X1) = $false)) )),
% 1.66/1.47    inference(pi_clausification,[status(thm)],[f107])).
% 1.66/1.47  thf(f107,plain,(
% 1.66/1.47    ($true != (?? @ $i @ (^[Y0 : $i]: (((setadjoin @ Y0 @ emptyset) = (dsetconstr @ sK13 @ (^[Y1 : $i]: (((~ sK12) & (sK15 = Y1)) | ((sK14 = Y1) & sK12))))) & (in @ Y0 @ (dsetconstr @ sK13 @ (^[Y1 : $i]: (((~ sK12) & (sK15 = Y1)) | ((sK14 = Y1) & sK12)))))))))),
% 1.66/1.47    inference(beta_eta_normalization,[status(thm)],[f99])).
% 1.66/1.47  thf(f99,plain,(
% 1.66/1.47    ($true != ((^[Y0 : $i]: (?? @ $i @ (^[Y1 : $i]: (((setadjoin @ Y1 @ emptyset) = Y0) & (in @ Y1 @ Y0))))) @ (dsetconstr @ sK13 @ (^[Y0 : $i]: (((~ sK12) & (sK15 = Y0)) | ((sK14 = Y0) & sK12))))))),
% 1.66/1.47    inference(definition_unfolding,[status(thm)],[f74,f66])).
% 1.66/1.47  thf(f66,plain,(
% 1.66/1.47    (singleton = (^[Y0 : $i]: (?? @ $i @ (^[Y1 : $i]: (((setadjoin @ Y1 @ emptyset) = Y0) & (in @ Y1 @ Y0))))))),
% 1.66/1.47    inference(cnf_transformation,[status(thm)],[f20])).
% 1.66/1.47  thf(f20,plain,(
% 1.66/1.47    (singleton = (^[Y0 : $i]: (?? @ $i @ (^[Y1 : $i]: (((setadjoin @ Y1 @ emptyset) = Y0) & (in @ Y1 @ Y0))))))),
% 1.66/1.47    inference(fool_elimination,[status(thm)],[f19])).
% 1.66/1.47  thf(f19,plain,(
% 1.66/1.47    ((^[X0 : $i] : (? [X1 : $i] : ((in @ X1 @ X0) & ((setadjoin @ X1 @ emptyset) = X0)))) = singleton)),
% 1.66/1.47    inference(rectify,[status(thm)],[f1])).
% 1.66/1.47  thf(f1,axiom,(
% 1.66/1.47    ((^[X0 : $i] : (? [X1 : $i] : ((in @ X1 @ X0) & ((setadjoin @ X1 @ emptyset) = X0)))) = singleton)),
% 1.66/1.47    file('/export/starexec/sandbox/tmp/tmp.qbkje3dyq5/DTF2THF_25610.p',singleton)).
% 1.66/1.47  thf(f74,plain,(
% 1.66/1.47    ($true != (singleton @ (dsetconstr @ sK13 @ (^[Y0 : $i]: (((~ sK12) & (sK15 = Y0)) | ((sK14 = Y0) & sK12))))))),
% 1.66/1.47    inference(cnf_transformation,[status(thm)],[f50])).
% 1.66/1.47  thf(f185,plain,(
% 1.66/1.47    ~spl20_5 | spl20_6),
% 1.66/1.47    inference(avatar_split_clause,[status(thm)],[f176,f183,f179])).
% 1.66/1.47  thf(f176,plain,(
% 1.66/1.47    ( ! [X0 : $i] : (((setadjoin @ sK14 @ emptyset) != (setadjoin @ X0 @ emptyset)) | ((in @ X0 @ (setadjoin @ sK14 @ emptyset)) = $false) | ((^[Y0 : $i]: (((~ sK12) & (sK15 = Y0)) | ((sK14 = Y0) & sK12))) != (= @ sK14))) )),
% 1.66/1.47    inference(constrained_superposition,[status(thm)],[f111,f133])).
% 1.66/1.47  % SZS output end Proof for DTF2THF_25610
% 1.66/1.47  % (25727)------------------------------
% 1.66/1.47  % (25727)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.66/1.47  % (25727)Termination reason: Refutation
% 1.66/1.47  
% 1.66/1.47  % (25727)Memory used [KB]: 6012
% 1.66/1.47  % (25727)Time elapsed: 0.090 s
% 1.66/1.47  % (25727)Instructions burned: 125 (million)
% 1.66/1.47  % (25727)------------------------------
% 1.66/1.47  % (25727)------------------------------
% 1.66/1.47  % (25706)Success in time 0.139 s
%------------------------------------------------------------------------------