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%------------------------------------------------------------------------------
% File     : DT2H2X---1.9.5
% Problem  : SEU794^2 : 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 : n026.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 09:37:15 AM UTC 2026

% Result   : Theorem 0.32s 1.49s
% Output   : Refutation 0.32s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   32
%            Number of leaves      :    7
% Syntax   : Number of formulae    :   92 (  66 unt;   0 typ;   2 def)
%            Number of atoms       :  899 ( 229 equ;   0 cnn)
%            Maximal formula atoms :    7 (   9 avg)
%            Number of connectives : 1537 (  33   ~;  21   |;  76   &;1049   @)
%                                         (   7 <=>; 120  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   15 (   2 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :   57 (  57   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   20 (  15 usr;  13 con; 0-2 aty)
%                                         ( 152  !!;  79  ??;   0 @@+;   0 @@-)
%            Number of variables   :  330 ( 257   ^;  64   !;   9   ?; 330   :)

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

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

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

thf(func_def_25,type,
    ph1: 
      !>[X0: $tType] : X0 ).

thf(func_def_26,type,
    sK2: ( $i > $i ) > $i > $i ).

thf(func_def_27,type,
    sK3: $i > $i ).

thf(f180,plain,
    $false,
    inference(avatar_sat_refutation,[status(thm)],[f94,f132,f179]) ).

thf(f179,plain,
    ~ spl0_1,
    inference(avatar_contradiction_clause,[status(thm)],[f178]) ).

thf(f178,plain,
    ( $false
    | ~ spl0_1 ),
    inference(trivial_inequality_removal,[status(thm)],[f177]) ).

thf(f177,plain,
    ( ( $true = $false )
    | ~ spl0_1 ),
    inference(boolean_simplification,[status(thm)],[f176]) ).

thf(f176,plain,
    ( ( $false
      = ( ( in @ sK8 @ sK5 )
       => ( in @ sK8 @ sK5 ) ) )
    | ~ spl0_1 ),
    inference(forward_demodulation,[status(thm)],[f175,f108]) ).

thf(f108,plain,
    ! [X0: $i] :
      ( ( in @ X0 @ sK5 )
      = ( in @ X0 @ ( sK2 @ sK3 @ sK4 ) ) ),
    inference(superposition,[status(thm)],[f62,f100]) ).

thf(f100,plain,
    ! [X1: $i] :
      ( ( in @ X1 @ sK5 )
      = ( ?? @ $i
        @ ^ [Y0: $i] :
            ( ( in @ Y0 @ sK4 )
            & ( ( sK3 @ Y0 )
              = X1 ) ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f99]) ).

thf(f99,plain,
    ! [X1: $i] :
      ( ( ( ?? @ $i
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ sK4 )
              & ( ( sK3 @ Y0 )
                = X1 ) ) )
        = ( in @ X1 @ sK5 ) )
      = $true ),
    inference(beta_eta_normalization,[status(thm)],[f97]) ).

thf(f97,plain,
    ! [X1: $i] :
      ( $true
      = ( ^ [Y0: $i] :
            ( ( ?? @ $i
              @ ^ [Y1: $i] :
                  ( ( in @ Y1 @ sK4 )
                  & ( ( sK3 @ Y1 )
                    = Y0 ) ) )
            = ( in @ Y0 @ sK5 ) )
        @ X1 ) ),
    inference(pi_clausification,[status(thm)],[f79]) ).

thf(f79,plain,
    ( $true
    = ( !! @ $i
      @ ^ [Y0: $i] :
          ( ( ?? @ $i
            @ ^ [Y1: $i] :
                ( ( in @ Y1 @ sK4 )
                & ( ( sK3 @ Y1 )
                  = Y0 ) ) )
          = ( in @ Y0 @ sK5 ) ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f77]) ).

thf(f77,plain,
    ( $false
    = ( ( !! @ $i
        @ ^ [Y0: $i] :
            ( ( ?? @ $i
              @ ^ [Y1: $i] :
                  ( ( in @ Y1 @ sK4 )
                  & ( ( sK3 @ Y1 )
                    = Y0 ) ) )
            = ( in @ Y0 @ sK5 ) ) )
     => ( ( sK2 @ sK3 @ sK4 )
        = sK5 ) ) ),
    inference(beta_eta_normalization,[status(thm)],[f74]) ).

thf(f74,plain,
    ( ( ^ [Y0: $i] :
          ( ( !! @ $i
            @ ^ [Y1: $i] :
                ( ( ?? @ $i
                  @ ^ [Y2: $i] :
                      ( ( in @ Y2 @ sK4 )
                      & ( ( sK3 @ Y2 )
                        = Y1 ) ) )
                = ( in @ Y1 @ Y0 ) ) )
         => ( ( sK2 @ sK3 @ sK4 )
            = Y0 ) )
      @ sK5 )
    = $false ),
    inference(sigma_clausification,[status(thm)],[f73]) ).

thf(f73,plain,
    ( $false
    = ( !! @ $i
      @ ^ [Y0: $i] :
          ( ( !! @ $i
            @ ^ [Y1: $i] :
                ( ( ?? @ $i
                  @ ^ [Y2: $i] :
                      ( ( in @ Y2 @ sK4 )
                      & ( ( sK3 @ Y2 )
                        = Y1 ) ) )
                = ( in @ Y1 @ Y0 ) ) )
         => ( ( sK2 @ sK3 @ sK4 )
            = Y0 ) ) ) ),
    inference(boolean_simplification,[status(thm)],[f72]) ).

thf(f72,plain,
    ( ( $true
      & ( !! @ $i
        @ ^ [Y0: $i] :
            ( ( !! @ $i
              @ ^ [Y1: $i] :
                  ( ( ?? @ $i
                    @ ^ [Y2: $i] :
                        ( ( in @ Y2 @ sK4 )
                        & ( ( sK3 @ Y2 )
                          = Y1 ) ) )
                  = ( in @ Y1 @ Y0 ) ) )
           => ( ( sK2 @ sK3 @ sK4 )
              = Y0 ) ) ) )
    = $false ),
    inference(superposition,[status(thm)],[f70,f59]) ).

thf(f59,plain,
    ! [X2: $i,X1: $i > $i] :
      ( $true
      = ( !! @ $i
        @ ^ [Y0: $i] :
            ( ( ?? @ $i
              @ ^ [Y1: $i] :
                  ( ( in @ Y1 @ X2 )
                  & ( ( X1 @ Y1 )
                    = Y0 ) ) )
            = ( in @ Y0 @ ( sK2 @ X1 @ X2 ) ) ) ) ),
    inference(beta_eta_normalization,[status(thm)],[f58]) ).

thf(f58,plain,
    ! [X2: $i,X1: $i > $i] :
      ( $true
      = ( ^ [Y0: $i] :
            ( !! @ $i
            @ ^ [Y1: $i] :
                ( ( ?? @ $i
                  @ ^ [Y2: $i] :
                      ( ( in @ Y2 @ X2 )
                      & ( ( X1 @ Y2 )
                        = Y1 ) ) )
                = ( in @ Y1 @ Y0 ) ) )
        @ ( sK2 @ X1 @ X2 ) ) ),
    inference(sigma_clausification,[status(thm)],[f57]) ).

thf(f57,plain,
    ! [X2: $i,X1: $i > $i] :
      ( $true
      = ( ?? @ $i
        @ ^ [Y0: $i] :
            ( !! @ $i
            @ ^ [Y1: $i] :
                ( ( ?? @ $i
                  @ ^ [Y2: $i] :
                      ( ( in @ Y2 @ X2 )
                      & ( ( X1 @ Y2 )
                        = Y1 ) ) )
                = ( in @ Y1 @ Y0 ) ) ) ) ),
    inference(beta_eta_normalization,[status(thm)],[f56]) ).

thf(f56,plain,
    ! [X2: $i,X1: $i > $i] :
      ( $true
      = ( ^ [Y0: $i] :
            ( ?? @ $i
            @ ^ [Y1: $i] :
                ( !! @ $i
                @ ^ [Y2: $i] :
                    ( ( ?? @ $i
                      @ ^ [Y3: $i] :
                          ( ( in @ Y3 @ Y0 )
                          & ( ( X1 @ Y3 )
                            = Y2 ) ) )
                    = ( in @ Y2 @ Y1 ) ) ) )
        @ X2 ) ),
    inference(pi_clausification,[status(thm)],[f55]) ).

thf(f55,plain,
    ! [X1: $i > $i] :
      ( $true
      = ( !! @ $i
        @ ^ [Y0: $i] :
            ( ?? @ $i
            @ ^ [Y1: $i] :
                ( !! @ $i
                @ ^ [Y2: $i] :
                    ( ( ?? @ $i
                      @ ^ [Y3: $i] :
                          ( ( in @ Y3 @ Y0 )
                          & ( ( X1 @ Y3 )
                            = Y2 ) ) )
                    = ( in @ Y2 @ Y1 ) ) ) ) ) ),
    inference(beta_eta_normalization,[status(thm)],[f54]) ).

thf(f54,plain,
    ! [X1: $i > $i] :
      ( $true
      = ( ^ [Y0: $i > $i] :
            ( !! @ $i
            @ ^ [Y1: $i] :
                ( ?? @ $i
                @ ^ [Y2: $i] :
                    ( !! @ $i
                    @ ^ [Y3: $i] :
                        ( ( ?? @ $i
                          @ ^ [Y4: $i] :
                              ( ( in @ Y4 @ Y1 )
                              & ( ( Y0 @ Y4 )
                                = Y3 ) ) )
                        = ( in @ Y3 @ Y2 ) ) ) ) )
        @ X1 ) ),
    inference(pi_clausification,[status(thm)],[f49]) ).

thf(f49,plain,
    ( $true
    = ( !! @ ( $i > $i )
      @ ^ [Y0: $i > $i] :
          ( !! @ $i
          @ ^ [Y1: $i] :
              ( ?? @ $i
              @ ^ [Y2: $i] :
                  ( !! @ $i
                  @ ^ [Y3: $i] :
                      ( ( ?? @ $i
                        @ ^ [Y4: $i] :
                            ( ( in @ Y4 @ Y1 )
                            & ( ( Y0 @ Y4 )
                              = Y3 ) ) )
                      = ( in @ Y3 @ Y2 ) ) ) ) ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f32]) ).

thf(f32,plain,
    ( $false
    = ( ( !! @ ( $i > $i )
        @ ^ [Y0: $i > $i] :
            ( !! @ $i
            @ ^ [Y1: $i] :
                ( ?? @ $i
                @ ^ [Y2: $i] :
                    ( !! @ $i
                    @ ^ [Y3: $i] :
                        ( ( ?? @ $i
                          @ ^ [Y4: $i] :
                              ( ( in @ Y4 @ Y1 )
                              & ( ( Y0 @ Y4 )
                                = Y3 ) ) )
                        = ( in @ Y3 @ Y2 ) ) ) ) ) )
     => ( !! @ ( $i > $i )
        @ ^ [Y0: $i > $i] :
            ( !! @ $i
            @ ^ [Y1: $i] :
                ( ?? @ $i
                @ ^ [Y2: $i] :
                    ( ( !! @ $i
                      @ ^ [Y3: $i] :
                          ( ( ?? @ $i
                            @ ^ [Y4: $i] :
                                ( ( in @ Y4 @ Y1 )
                                & ( ( Y0 @ Y4 )
                                  = Y3 ) ) )
                          = ( in @ Y3 @ Y2 ) ) )
                    & ( !! @ $i
                      @ ^ [Y3: $i] :
                          ( ( !! @ $i
                            @ ^ [Y4: $i] :
                                ( ( ?? @ $i
                                  @ ^ [Y5: $i] :
                                      ( ( in @ Y5 @ Y1 )
                                      & ( ( Y0 @ Y5 )
                                        = Y4 ) ) )
                                = ( in @ Y4 @ Y3 ) ) )
                         => ( Y2 = Y3 ) ) ) ) ) ) ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f31]) ).

thf(f31,plain,
    ( ( ( !! @ $i
        @ ^ [Y0: $i] :
            ( !! @ $i
            @ ^ [Y1: $i] :
                ( ( subset @ Y0 @ Y1 )
               => ( ( subset @ Y1 @ Y0 )
                 => ( Y1 = Y0 ) ) ) ) )
     => ( ( !! @ ( $i > $i )
          @ ^ [Y0: $i > $i] :
              ( !! @ $i
              @ ^ [Y1: $i] :
                  ( ?? @ $i
                  @ ^ [Y2: $i] :
                      ( !! @ $i
                      @ ^ [Y3: $i] :
                          ( ( ?? @ $i
                            @ ^ [Y4: $i] :
                                ( ( in @ Y4 @ Y1 )
                                & ( ( Y0 @ Y4 )
                                  = Y3 ) ) )
                          = ( in @ Y3 @ Y2 ) ) ) ) ) )
       => ( !! @ ( $i > $i )
          @ ^ [Y0: $i > $i] :
              ( !! @ $i
              @ ^ [Y1: $i] :
                  ( ?? @ $i
                  @ ^ [Y2: $i] :
                      ( ( !! @ $i
                        @ ^ [Y3: $i] :
                            ( ( ?? @ $i
                              @ ^ [Y4: $i] :
                                  ( ( in @ Y4 @ Y1 )
                                  & ( ( Y0 @ Y4 )
                                    = Y3 ) ) )
                            = ( in @ Y3 @ Y2 ) ) )
                      & ( !! @ $i
                        @ ^ [Y3: $i] :
                            ( ( !! @ $i
                              @ ^ [Y4: $i] :
                                  ( ( ?? @ $i
                                    @ ^ [Y5: $i] :
                                        ( ( in @ Y5 @ Y1 )
                                        & ( ( Y0 @ Y5 )
                                          = Y4 ) ) )
                                  = ( in @ Y4 @ Y3 ) ) )
                           => ( Y2 = Y3 ) ) ) ) ) ) ) ) )
    = $false ),
    inference(boolean_simplification,[status(thm)],[f30]) ).

thf(f30,plain,
    ( $false
    = ( $true
     => ( ( !! @ $i
          @ ^ [Y0: $i] :
              ( !! @ $i
              @ ^ [Y1: $i] :
                  ( ( subset @ Y0 @ Y1 )
                 => ( ( subset @ Y1 @ Y0 )
                   => ( Y1 = Y0 ) ) ) ) )
       => ( ( !! @ ( $i > $i )
            @ ^ [Y0: $i > $i] :
                ( !! @ $i
                @ ^ [Y1: $i] :
                    ( ?? @ $i
                    @ ^ [Y2: $i] :
                        ( !! @ $i
                        @ ^ [Y3: $i] :
                            ( ( ?? @ $i
                              @ ^ [Y4: $i] :
                                  ( ( in @ Y4 @ Y1 )
                                  & ( ( Y0 @ Y4 )
                                    = Y3 ) ) )
                            = ( in @ Y3 @ Y2 ) ) ) ) ) )
         => ( !! @ ( $i > $i )
            @ ^ [Y0: $i > $i] :
                ( !! @ $i
                @ ^ [Y1: $i] :
                    ( ?? @ $i
                    @ ^ [Y2: $i] :
                        ( ( !! @ $i
                          @ ^ [Y3: $i] :
                              ( ( ?? @ $i
                                @ ^ [Y4: $i] :
                                    ( ( in @ Y4 @ Y1 )
                                    & ( ( Y0 @ Y4 )
                                      = Y3 ) ) )
                              = ( in @ Y3 @ Y2 ) ) )
                        & ( !! @ $i
                          @ ^ [Y3: $i] :
                              ( ( !! @ $i
                                @ ^ [Y4: $i] :
                                    ( ( ?? @ $i
                                      @ ^ [Y5: $i] :
                                          ( ( in @ Y5 @ Y1 )
                                          & ( ( Y0 @ Y5 )
                                            = Y4 ) ) )
                                    = ( in @ Y4 @ Y3 ) ) )
                             => ( Y2 = Y3 ) ) ) ) ) ) ) ) ) ) ),
    inference(backward_demodulation,[status(thm)],[f25,f29]) ).

thf(f29,plain,
    ( ( !! @ $i
      @ ^ [Y0: $i] :
          ( !! @ $i
          @ ^ [Y1: $i] :
              ( ( !! @ $i
                @ ^ [Y2: $i] :
                    ( ( in @ Y2 @ Y0 )
                   => ( in @ Y2 @ Y1 ) ) )
             => ( subset @ Y0 @ Y1 ) ) ) )
    = $true ),
    inference(binary_proxy_clausification,[status(thm)],[f25]) ).

thf(f25,plain,
    ( $false
    = ( ( !! @ $i
        @ ^ [Y0: $i] :
            ( !! @ $i
            @ ^ [Y1: $i] :
                ( ( !! @ $i
                  @ ^ [Y2: $i] :
                      ( ( in @ Y2 @ Y0 )
                     => ( in @ Y2 @ Y1 ) ) )
               => ( subset @ Y0 @ Y1 ) ) ) )
     => ( ( !! @ $i
          @ ^ [Y0: $i] :
              ( !! @ $i
              @ ^ [Y1: $i] :
                  ( ( subset @ Y0 @ Y1 )
                 => ( ( subset @ Y1 @ Y0 )
                   => ( Y1 = Y0 ) ) ) ) )
       => ( ( !! @ ( $i > $i )
            @ ^ [Y0: $i > $i] :
                ( !! @ $i
                @ ^ [Y1: $i] :
                    ( ?? @ $i
                    @ ^ [Y2: $i] :
                        ( !! @ $i
                        @ ^ [Y3: $i] :
                            ( ( ?? @ $i
                              @ ^ [Y4: $i] :
                                  ( ( in @ Y4 @ Y1 )
                                  & ( ( Y0 @ Y4 )
                                    = Y3 ) ) )
                            = ( in @ Y3 @ Y2 ) ) ) ) ) )
         => ( !! @ ( $i > $i )
            @ ^ [Y0: $i > $i] :
                ( !! @ $i
                @ ^ [Y1: $i] :
                    ( ?? @ $i
                    @ ^ [Y2: $i] :
                        ( ( !! @ $i
                          @ ^ [Y3: $i] :
                              ( ( ?? @ $i
                                @ ^ [Y4: $i] :
                                    ( ( in @ Y4 @ Y1 )
                                    & ( ( Y0 @ Y4 )
                                      = Y3 ) ) )
                              = ( in @ Y3 @ Y2 ) ) )
                        & ( !! @ $i
                          @ ^ [Y3: $i] :
                              ( ( !! @ $i
                                @ ^ [Y4: $i] :
                                    ( ( ?? @ $i
                                      @ ^ [Y5: $i] :
                                          ( ( in @ Y5 @ Y1 )
                                          & ( ( Y0 @ Y5 )
                                            = Y4 ) ) )
                                    = ( in @ Y4 @ Y3 ) ) )
                             => ( Y2 = Y3 ) ) ) ) ) ) ) ) ) ) ),
    inference(not_proxy_clausification,[status(thm)],[f24]) ).

thf(f24,plain,
    ( $true
    = ( ~ ( ( !! @ $i
            @ ^ [Y0: $i] :
                ( !! @ $i
                @ ^ [Y1: $i] :
                    ( ( !! @ $i
                      @ ^ [Y2: $i] :
                          ( ( in @ Y2 @ Y0 )
                         => ( in @ Y2 @ Y1 ) ) )
                   => ( subset @ Y0 @ Y1 ) ) ) )
         => ( ( !! @ $i
              @ ^ [Y0: $i] :
                  ( !! @ $i
                  @ ^ [Y1: $i] :
                      ( ( subset @ Y0 @ Y1 )
                     => ( ( subset @ Y1 @ Y0 )
                       => ( Y1 = Y0 ) ) ) ) )
           => ( ( !! @ ( $i > $i )
                @ ^ [Y0: $i > $i] :
                    ( !! @ $i
                    @ ^ [Y1: $i] :
                        ( ?? @ $i
                        @ ^ [Y2: $i] :
                            ( !! @ $i
                            @ ^ [Y3: $i] :
                                ( ( ?? @ $i
                                  @ ^ [Y4: $i] :
                                      ( ( in @ Y4 @ Y1 )
                                      & ( ( Y0 @ Y4 )
                                        = Y3 ) ) )
                                = ( in @ Y3 @ Y2 ) ) ) ) ) )
             => ( !! @ ( $i > $i )
                @ ^ [Y0: $i > $i] :
                    ( !! @ $i
                    @ ^ [Y1: $i] :
                        ( ?? @ $i
                        @ ^ [Y2: $i] :
                            ( ( !! @ $i
                              @ ^ [Y3: $i] :
                                  ( ( ?? @ $i
                                    @ ^ [Y4: $i] :
                                        ( ( in @ Y4 @ Y1 )
                                        & ( ( Y0 @ Y4 )
                                          = Y3 ) ) )
                                  = ( in @ Y3 @ Y2 ) ) )
                            & ( !! @ $i
                              @ ^ [Y3: $i] :
                                  ( ( !! @ $i
                                    @ ^ [Y4: $i] :
                                        ( ( ?? @ $i
                                          @ ^ [Y5: $i] :
                                              ( ( in @ Y5 @ Y1 )
                                              & ( ( Y0 @ Y5 )
                                                = Y4 ) ) )
                                        = ( in @ Y4 @ Y3 ) ) )
                                 => ( Y2 = Y3 ) ) ) ) ) ) ) ) ) ) ) ),
    inference(beta_eta_normalization,[status(thm)],[f23]) ).

thf(f23,plain,
    ( $true
    = ( ~ ( ( !! @ $i
            @ ^ [Y0: $i] :
                ( !! @ $i
                @ ^ [Y1: $i] :
                    ( ( !! @ $i
                      @ ^ [Y2: $i] :
                          ( ( in @ Y2 @ Y0 )
                         => ( in @ Y2 @ Y1 ) ) )
                   => ( subset @ Y0 @ Y1 ) ) ) )
         => ( ( !! @ $i
              @ ^ [Y0: $i] :
                  ( !! @ $i
                  @ ^ [Y1: $i] :
                      ( ( subset @ Y0 @ Y1 )
                     => ( ( subset @ Y1 @ Y0 )
                       => ( Y1 = Y0 ) ) ) ) )
           => ( ( !! @ ( $i > $i )
                @ ^ [Y0: $i > $i] :
                    ( !! @ $i
                    @ ^ [Y1: $i] :
                        ( ?? @ $i
                        @ ^ [Y2: $i] :
                            ( !! @ $i
                            @ ^ [Y3: $i] :
                                ( ( ?? @ $i
                                  @ ^ [Y4: $i] :
                                      ( ( in @ Y4 @ Y1 )
                                      & ( ( Y0 @ Y4 )
                                        = Y3 ) ) )
                                = ( in @ Y3 @ Y2 ) ) ) ) ) )
             => ( !! @ ( $i > $i )
                @ ^ [Y0: $i > $i] :
                    ( !! @ $i
                    @ ^ [Y1: $i] :
                        ( ^ [Y2: $i > $o] :
                            ( ?? @ $i
                            @ ^ [Y3: $i] :
                                ( ( Y2 @ Y3 )
                                & ( !! @ $i
                                  @ ^ [Y4: $i] :
                                      ( ( Y2 @ Y4 )
                                     => ( Y3 = Y4 ) ) ) ) )
                        @ ^ [Y2: $i] :
                            ( !! @ $i
                            @ ^ [Y3: $i] :
                                ( ( ?? @ $i
                                  @ ^ [Y4: $i] :
                                      ( ( in @ Y4 @ Y1 )
                                      & ( ( Y0 @ Y4 )
                                        = Y3 ) ) )
                                = ( in @ Y3 @ Y2 ) ) ) ) ) ) ) ) ) ) ),
    inference(definition_unfolding,[status(thm)],[f22,f18,f19,f21,f20]) ).

thf(f20,plain,
    ( exu
    = ( ^ [Y0: $i > $o] :
          ( ?? @ $i
          @ ^ [Y1: $i] :
              ( ( Y0 @ Y1 )
              & ( !! @ $i
                @ ^ [Y2: $i] :
                    ( ( Y0 @ Y2 )
                   => ( Y1 = Y2 ) ) ) ) ) ) ),
    inference(cnf_transformation,[status(thm)],[f17]) ).

thf(f17,plain,
    ( exu
    = ( ^ [Y0: $i > $o] :
          ( ?? @ $i
          @ ^ [Y1: $i] :
              ( ( Y0 @ Y1 )
              & ( !! @ $i
                @ ^ [Y2: $i] :
                    ( ( Y0 @ Y2 )
                   => ( Y1 = Y2 ) ) ) ) ) ) ),
    inference(fool_elimination,[status(thm)],[f16]) ).

thf(f16,plain,
    ( ( ^ [X0: $i > $o] :
        ? [X1: $i] :
          ( ! [X2: $i] :
              ( ( X0 @ X2 )
             => ( X1 = X2 ) )
          & ( X0 @ X1 ) ) )
    = exu ),
    inference(rectify,[status(thm)],[f1]) ).

thf(f1,axiom,
    ( ( ^ [X0: $i > $o] :
        ? [X1: $i] :
          ( ! [X2: $i] :
              ( ( X0 @ X2 )
             => ( X1 = X2 ) )
          & ( X0 @ X1 ) ) )
    = exu ),
    file('/export/starexec/sandbox/tmp/tmp.0V7zyvtR6B/DTF2THF_26351.p',exu) ).

thf(f21,plain,
    ( image1Ex
    = ( !! @ ( $i > $i )
      @ ^ [Y0: $i > $i] :
          ( !! @ $i
          @ ^ [Y1: $i] :
              ( ?? @ $i
              @ ^ [Y2: $i] :
                  ( !! @ $i
                  @ ^ [Y3: $i] :
                      ( ( ?? @ $i
                        @ ^ [Y4: $i] :
                            ( ( in @ Y4 @ Y1 )
                            & ( ( Y0 @ Y4 )
                              = Y3 ) ) )
                      = ( in @ Y3 @ Y2 ) ) ) ) ) ) ),
    inference(cnf_transformation,[status(thm)],[f11]) ).

thf(f11,plain,
    ( image1Ex
    = ( !! @ ( $i > $i )
      @ ^ [Y0: $i > $i] :
          ( !! @ $i
          @ ^ [Y1: $i] :
              ( ?? @ $i
              @ ^ [Y2: $i] :
                  ( !! @ $i
                  @ ^ [Y3: $i] :
                      ( ( ?? @ $i
                        @ ^ [Y4: $i] :
                            ( ( in @ Y4 @ Y1 )
                            & ( ( Y0 @ Y4 )
                              = Y3 ) ) )
                      = ( in @ Y3 @ Y2 ) ) ) ) ) ) ),
    inference(fool_elimination,[status(thm)],[f10]) ).

thf(f10,plain,
    ( image1Ex
    = ( ! [X0: $i,X1: $i > $i] :
        ? [X2: $i] :
        ! [X3: $i] :
          ( ? [X4: $i] :
              ( ( ( X1 @ X4 )
                = X3 )
              & ( in @ X4 @ X0 ) )
        <=> ( in @ X3 @ X2 ) ) ) ),
    inference(rectify,[status(thm)],[f4]) ).

thf(f4,axiom,
    ( image1Ex
    = ( ! [X3: $i,X5: $i > $i] :
        ? [X4: $i] :
        ! [X1: $i] :
          ( ? [X2: $i] :
              ( ( ( X5 @ X2 )
                = X1 )
              & ( in @ X2 @ X3 ) )
        <=> ( in @ X1 @ X4 ) ) ) ),
    file('/export/starexec/sandbox/tmp/tmp.0V7zyvtR6B/DTF2THF_26351.p',image1Ex) ).

thf(f19,plain,
    ( setextsub
    = ( !! @ $i
      @ ^ [Y0: $i] :
          ( !! @ $i
          @ ^ [Y1: $i] :
              ( ( subset @ Y0 @ Y1 )
             => ( ( subset @ Y1 @ Y0 )
               => ( Y1 = Y0 ) ) ) ) ) ),
    inference(cnf_transformation,[status(thm)],[f15]) ).

thf(f15,plain,
    ( setextsub
    = ( !! @ $i
      @ ^ [Y0: $i] :
          ( !! @ $i
          @ ^ [Y1: $i] :
              ( ( subset @ Y0 @ Y1 )
             => ( ( subset @ Y1 @ Y0 )
               => ( Y1 = Y0 ) ) ) ) ) ),
    inference(fool_elimination,[status(thm)],[f14]) ).

thf(f14,plain,
    ! [X0: $i,X1: $i] :
      ( ( ( subset @ X1 @ X0 )
       => ( ( subset @ X0 @ X1 )
         => ( X0 = X1 ) ) )
      = setextsub ),
    inference(rectify,[status(thm)],[f3]) ).

thf(f3,axiom,
    ! [X4: $i,X3: $i] :
      ( ( ( subset @ X3 @ X4 )
       => ( ( subset @ X4 @ X3 )
         => ( X3 = X4 ) ) )
      = setextsub ),
    file('/export/starexec/sandbox/tmp/tmp.0V7zyvtR6B/DTF2THF_26351.p',setextsub) ).

thf(f18,plain,
    ( subsetI1
    = ( !! @ $i
      @ ^ [Y0: $i] :
          ( !! @ $i
          @ ^ [Y1: $i] :
              ( ( !! @ $i
                @ ^ [Y2: $i] :
                    ( ( in @ Y2 @ Y0 )
                   => ( in @ Y2 @ Y1 ) ) )
             => ( subset @ Y0 @ Y1 ) ) ) ) ),
    inference(cnf_transformation,[status(thm)],[f9]) ).

thf(f9,plain,
    ( subsetI1
    = ( !! @ $i
      @ ^ [Y0: $i] :
          ( !! @ $i
          @ ^ [Y1: $i] :
              ( ( !! @ $i
                @ ^ [Y2: $i] :
                    ( ( in @ Y2 @ Y0 )
                   => ( in @ Y2 @ Y1 ) ) )
             => ( subset @ Y0 @ Y1 ) ) ) ) ),
    inference(fool_elimination,[status(thm)],[f8]) ).

thf(f8,plain,
    ! [X0: $i,X1: $i] :
      ( ( ! [X2: $i] :
            ( ( in @ X2 @ X1 )
           => ( in @ X2 @ X0 ) )
       => ( subset @ X1 @ X0 ) )
      = subsetI1 ),
    inference(rectify,[status(thm)],[f2]) ).

thf(f2,axiom,
    ! [X4: $i,X3: $i] :
      ( ( ! [X1: $i] :
            ( ( in @ X1 @ X3 )
           => ( in @ X1 @ X4 ) )
       => ( subset @ X3 @ X4 ) )
      = subsetI1 ),
    file('/export/starexec/sandbox/tmp/tmp.0V7zyvtR6B/DTF2THF_26351.p',subsetI1) ).

thf(f22,plain,
    ( $true
    = ( ~ ( subsetI1
         => ( setextsub
           => ( image1Ex
             => ( !! @ ( $i > $i )
                @ ^ [Y0: $i > $i] :
                    ( !! @ $i
                    @ ^ [Y1: $i] :
                        ( exu
                        @ ^ [Y2: $i] :
                            ( !! @ $i
                            @ ^ [Y3: $i] :
                                ( ( ?? @ $i
                                  @ ^ [Y4: $i] :
                                      ( ( in @ Y4 @ Y1 )
                                      & ( ( Y0 @ Y4 )
                                        = Y3 ) ) )
                                = ( in @ Y3 @ Y2 ) ) ) ) ) ) ) ) ) ) ),
    inference(cnf_transformation,[status(thm)],[f13]) ).

thf(f13,plain,
    ( $true
    = ( ~ ( subsetI1
         => ( setextsub
           => ( image1Ex
             => ( !! @ ( $i > $i )
                @ ^ [Y0: $i > $i] :
                    ( !! @ $i
                    @ ^ [Y1: $i] :
                        ( exu
                        @ ^ [Y2: $i] :
                            ( !! @ $i
                            @ ^ [Y3: $i] :
                                ( ( ?? @ $i
                                  @ ^ [Y4: $i] :
                                      ( ( in @ Y4 @ Y1 )
                                      & ( ( Y0 @ Y4 )
                                        = Y3 ) ) )
                                = ( in @ Y3 @ Y2 ) ) ) ) ) ) ) ) ) ) ),
    inference(fool_elimination,[status(thm)],[f12]) ).

thf(f12,plain,
    ~ ( subsetI1
     => ( setextsub
       => ( image1Ex
         => ! [X0: $i,X1: $i > $i] :
              ( exu
              @ ^ [X2: $i] :
                ! [X3: $i] :
                  ( ? [X4: $i] :
                      ( ( ( X1 @ X4 )
                        = X3 )
                      & ( in @ X4 @ X0 ) )
                <=> ( in @ X3 @ X2 ) ) ) ) ) ),
    inference(rectify,[status(thm)],[f6]) ).

thf(f6,negated_conjecture,
    ~ ( subsetI1
     => ( setextsub
       => ( image1Ex
         => ! [X3: $i,X5: $i > $i] :
              ( exu
              @ ^ [X4: $i] :
                ! [X1: $i] :
                  ( ? [X2: $i] :
                      ( ( ( X5 @ X2 )
                        = X1 )
                      & ( in @ X2 @ X3 ) )
                <=> ( in @ X1 @ X4 ) ) ) ) ) ),
    inference(negated_conjecture,[status(cth)],[f5]) ).

thf(f5,conjecture,
    ( subsetI1
   => ( setextsub
     => ( image1Ex
       => ! [X3: $i,X5: $i > $i] :
            ( exu
            @ ^ [X4: $i] :
              ! [X1: $i] :
                ( ? [X2: $i] :
                    ( ( ( X5 @ X2 )
                      = X1 )
                    & ( in @ X2 @ X3 ) )
              <=> ( in @ X1 @ X4 ) ) ) ) ) ),
    file('/export/starexec/sandbox/tmp/tmp.0V7zyvtR6B/DTF2THF_26351.p',image1Ex1) ).

thf(f70,plain,
    ! [X1: $i] :
      ( $false
      = ( ( !! @ $i
          @ ^ [Y0: $i] :
              ( ( ?? @ $i
                @ ^ [Y1: $i] :
                    ( ( in @ Y1 @ sK4 )
                    & ( ( sK3 @ Y1 )
                      = Y0 ) ) )
              = ( in @ Y0 @ X1 ) ) )
        & ( !! @ $i
          @ ^ [Y0: $i] :
              ( ( !! @ $i
                @ ^ [Y1: $i] :
                    ( ( ?? @ $i
                      @ ^ [Y2: $i] :
                          ( ( in @ Y2 @ sK4 )
                          & ( ( sK3 @ Y2 )
                            = Y1 ) ) )
                    = ( in @ Y1 @ Y0 ) ) )
             => ( X1 = Y0 ) ) ) ) ),
    inference(beta_eta_normalization,[status(thm)],[f69]) ).

thf(f69,plain,
    ! [X1: $i] :
      ( ( ^ [Y0: $i] :
            ( ( !! @ $i
              @ ^ [Y1: $i] :
                  ( ( ?? @ $i
                    @ ^ [Y2: $i] :
                        ( ( in @ Y2 @ sK4 )
                        & ( ( sK3 @ Y2 )
                          = Y1 ) ) )
                  = ( in @ Y1 @ Y0 ) ) )
            & ( !! @ $i
              @ ^ [Y1: $i] :
                  ( ( !! @ $i
                    @ ^ [Y2: $i] :
                        ( ( ?? @ $i
                          @ ^ [Y3: $i] :
                              ( ( in @ Y3 @ sK4 )
                              & ( ( sK3 @ Y3 )
                                = Y2 ) ) )
                        = ( in @ Y2 @ Y1 ) ) )
                 => ( Y0 = Y1 ) ) ) )
        @ X1 )
      = $false ),
    inference(pi_clausification,[status(thm)],[f68]) ).

thf(f68,plain,
    ( $false
    = ( ?? @ $i
      @ ^ [Y0: $i] :
          ( ( !! @ $i
            @ ^ [Y1: $i] :
                ( ( ?? @ $i
                  @ ^ [Y2: $i] :
                      ( ( in @ Y2 @ sK4 )
                      & ( ( sK3 @ Y2 )
                        = Y1 ) ) )
                = ( in @ Y1 @ Y0 ) ) )
          & ( !! @ $i
            @ ^ [Y1: $i] :
                ( ( !! @ $i
                  @ ^ [Y2: $i] :
                      ( ( ?? @ $i
                        @ ^ [Y3: $i] :
                            ( ( in @ Y3 @ sK4 )
                            & ( ( sK3 @ Y3 )
                              = Y2 ) ) )
                      = ( in @ Y2 @ Y1 ) ) )
               => ( Y0 = Y1 ) ) ) ) ) ),
    inference(beta_eta_normalization,[status(thm)],[f67]) ).

thf(f67,plain,
    ( $false
    = ( ^ [Y0: $i] :
          ( ?? @ $i
          @ ^ [Y1: $i] :
              ( ( !! @ $i
                @ ^ [Y2: $i] :
                    ( ( ?? @ $i
                      @ ^ [Y3: $i] :
                          ( ( in @ Y3 @ Y0 )
                          & ( ( sK3 @ Y3 )
                            = Y2 ) ) )
                    = ( in @ Y2 @ Y1 ) ) )
              & ( !! @ $i
                @ ^ [Y2: $i] :
                    ( ( !! @ $i
                      @ ^ [Y3: $i] :
                          ( ( ?? @ $i
                            @ ^ [Y4: $i] :
                                ( ( in @ Y4 @ Y0 )
                                & ( ( sK3 @ Y4 )
                                  = Y3 ) ) )
                          = ( in @ Y3 @ Y2 ) ) )
                   => ( Y1 = Y2 ) ) ) ) )
      @ sK4 ) ),
    inference(sigma_clausification,[status(thm)],[f66]) ).

thf(f66,plain,
    ( ( !! @ $i
      @ ^ [Y0: $i] :
          ( ?? @ $i
          @ ^ [Y1: $i] :
              ( ( !! @ $i
                @ ^ [Y2: $i] :
                    ( ( ?? @ $i
                      @ ^ [Y3: $i] :
                          ( ( in @ Y3 @ Y0 )
                          & ( ( sK3 @ Y3 )
                            = Y2 ) ) )
                    = ( in @ Y2 @ Y1 ) ) )
              & ( !! @ $i
                @ ^ [Y2: $i] :
                    ( ( !! @ $i
                      @ ^ [Y3: $i] :
                          ( ( ?? @ $i
                            @ ^ [Y4: $i] :
                                ( ( in @ Y4 @ Y0 )
                                & ( ( sK3 @ Y4 )
                                  = Y3 ) ) )
                          = ( in @ Y3 @ Y2 ) ) )
                   => ( Y1 = Y2 ) ) ) ) ) )
    = $false ),
    inference(beta_eta_normalization,[status(thm)],[f65]) ).

thf(f65,plain,
    ( ( ^ [Y0: $i > $i] :
          ( !! @ $i
          @ ^ [Y1: $i] :
              ( ?? @ $i
              @ ^ [Y2: $i] :
                  ( ( !! @ $i
                    @ ^ [Y3: $i] :
                        ( ( ?? @ $i
                          @ ^ [Y4: $i] :
                              ( ( in @ Y4 @ Y1 )
                              & ( ( Y0 @ Y4 )
                                = Y3 ) ) )
                        = ( in @ Y3 @ Y2 ) ) )
                  & ( !! @ $i
                    @ ^ [Y3: $i] :
                        ( ( !! @ $i
                          @ ^ [Y4: $i] :
                              ( ( ?? @ $i
                                @ ^ [Y5: $i] :
                                    ( ( in @ Y5 @ Y1 )
                                    & ( ( Y0 @ Y5 )
                                      = Y4 ) ) )
                              = ( in @ Y4 @ Y3 ) ) )
                       => ( Y2 = Y3 ) ) ) ) ) )
      @ sK3 )
    = $false ),
    inference(sigma_clausification,[status(thm)],[f48]) ).

thf(f48,plain,
    ( $false
    = ( !! @ ( $i > $i )
      @ ^ [Y0: $i > $i] :
          ( !! @ $i
          @ ^ [Y1: $i] :
              ( ?? @ $i
              @ ^ [Y2: $i] :
                  ( ( !! @ $i
                    @ ^ [Y3: $i] :
                        ( ( ?? @ $i
                          @ ^ [Y4: $i] :
                              ( ( in @ Y4 @ Y1 )
                              & ( ( Y0 @ Y4 )
                                = Y3 ) ) )
                        = ( in @ Y3 @ Y2 ) ) )
                  & ( !! @ $i
                    @ ^ [Y3: $i] :
                        ( ( !! @ $i
                          @ ^ [Y4: $i] :
                              ( ( ?? @ $i
                                @ ^ [Y5: $i] :
                                    ( ( in @ Y5 @ Y1 )
                                    & ( ( Y0 @ Y5 )
                                      = Y4 ) ) )
                              = ( in @ Y4 @ Y3 ) ) )
                       => ( Y2 = Y3 ) ) ) ) ) ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f32]) ).

thf(f62,plain,
    ! [X2: $i,X3: $i,X1: $i > $i] :
      ( ( in @ X3 @ ( sK2 @ X1 @ X2 ) )
      = ( ?? @ $i
        @ ^ [Y0: $i] :
            ( ( in @ Y0 @ X2 )
            & ( ( X1 @ Y0 )
              = X3 ) ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f61]) ).

thf(f61,plain,
    ! [X2: $i,X3: $i,X1: $i > $i] :
      ( $true
      = ( ( ?? @ $i
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X2 )
              & ( ( X1 @ Y0 )
                = X3 ) ) )
        = ( in @ X3 @ ( sK2 @ X1 @ X2 ) ) ) ),
    inference(beta_eta_normalization,[status(thm)],[f60]) ).

thf(f60,plain,
    ! [X2: $i,X3: $i,X1: $i > $i] :
      ( $true
      = ( ^ [Y0: $i] :
            ( ( ?? @ $i
              @ ^ [Y1: $i] :
                  ( ( in @ Y1 @ X2 )
                  & ( ( X1 @ Y1 )
                    = Y0 ) ) )
            = ( in @ Y0 @ ( sK2 @ X1 @ X2 ) ) )
        @ X3 ) ),
    inference(pi_clausification,[status(thm)],[f59]) ).

thf(f175,plain,
    ( ( $false
      = ( ( in @ sK8 @ sK5 )
       => ( in @ sK8 @ ( sK2 @ sK3 @ sK4 ) ) ) )
    | ~ spl0_1 ),
    inference(beta_eta_normalization,[status(thm)],[f172]) ).

thf(f172,plain,
    ( ( ( ^ [Y0: $i] :
            ( ( in @ Y0 @ sK5 )
           => ( in @ Y0 @ ( sK2 @ sK3 @ sK4 ) ) )
        @ sK8 )
      = $false )
    | ~ spl0_1 ),
    inference(sigma_clausification,[status(thm)],[f142]) ).

thf(f142,plain,
    ( ( ( !! @ $i
        @ ^ [Y0: $i] :
            ( ( in @ Y0 @ sK5 )
           => ( in @ Y0 @ ( sK2 @ sK3 @ sK4 ) ) ) )
      = $false )
    | ~ spl0_1 ),
    inference(not_proxy_clausification,[status(thm)],[f138]) ).

thf(f138,plain,
    ( ( $true
      = ( ~ ( !! @ $i
            @ ^ [Y0: $i] :
                ( ( in @ Y0 @ sK5 )
               => ( in @ Y0 @ ( sK2 @ sK3 @ sK4 ) ) ) ) ) )
    | ~ spl0_1 ),
    inference(boolean_simplification,[status(thm)],[f135]) ).

thf(f135,plain,
    ( ( $true
      = ( ( !! @ $i
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ sK5 )
             => ( in @ Y0 @ ( sK2 @ sK3 @ sK4 ) ) ) )
       => $false ) )
    | ~ spl0_1 ),
    inference(superposition,[status(thm)],[f46,f90]) ).

thf(f90,plain,
    ( ( ( subset @ sK5 @ ( sK2 @ sK3 @ sK4 ) )
      = $false )
    | ~ spl0_1 ),
    inference(avatar_component_clause,[status(thm)],[f89]) ).

thf(f89,definition,
    ( spl0_1
  <=> ( ( subset @ sK5 @ ( sK2 @ sK3 @ sK4 ) )
      = $false ) ),
    introduced(definition,[new_symbols(naming,[spl0_1])],[avatar_definition]) ).

thf(f46,plain,
    ! [X2: $i,X1: $i] :
      ( $true
      = ( ( !! @ $i
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ X1 )
             => ( in @ Y0 @ X2 ) ) )
       => ( subset @ X1 @ X2 ) ) ),
    inference(beta_eta_normalization,[status(thm)],[f45]) ).

thf(f45,plain,
    ! [X2: $i,X1: $i] :
      ( $true
      = ( ^ [Y0: $i] :
            ( ( !! @ $i
              @ ^ [Y1: $i] :
                  ( ( in @ Y1 @ X1 )
                 => ( in @ Y1 @ Y0 ) ) )
           => ( subset @ X1 @ Y0 ) )
        @ X2 ) ),
    inference(pi_clausification,[status(thm)],[f44]) ).

thf(f44,plain,
    ! [X1: $i] :
      ( $true
      = ( !! @ $i
        @ ^ [Y0: $i] :
            ( ( !! @ $i
              @ ^ [Y1: $i] :
                  ( ( in @ Y1 @ X1 )
                 => ( in @ Y1 @ Y0 ) ) )
           => ( subset @ X1 @ Y0 ) ) ) ),
    inference(beta_eta_normalization,[status(thm)],[f43]) ).

thf(f43,plain,
    ! [X1: $i] :
      ( $true
      = ( ^ [Y0: $i] :
            ( !! @ $i
            @ ^ [Y1: $i] :
                ( ( !! @ $i
                  @ ^ [Y2: $i] :
                      ( ( in @ Y2 @ Y0 )
                     => ( in @ Y2 @ Y1 ) ) )
               => ( subset @ Y0 @ Y1 ) ) )
        @ X1 ) ),
    inference(pi_clausification,[status(thm)],[f29]) ).

thf(f132,plain,
    ~ spl0_2,
    inference(avatar_contradiction_clause,[status(thm)],[f131]) ).

thf(f131,plain,
    ( $false
    | ~ spl0_2 ),
    inference(trivial_inequality_removal,[status(thm)],[f130]) ).

thf(f130,plain,
    ( ( $true = $false )
    | ~ spl0_2 ),
    inference(boolean_simplification,[status(thm)],[f129]) ).

thf(f129,plain,
    ( ( ( ( in @ sK7 @ sK5 )
       => ( in @ sK7 @ sK5 ) )
      = $false )
    | ~ spl0_2 ),
    inference(forward_demodulation,[status(thm)],[f128,f108]) ).

thf(f128,plain,
    ( ( $false
      = ( ( in @ sK7 @ ( sK2 @ sK3 @ sK4 ) )
       => ( in @ sK7 @ sK5 ) ) )
    | ~ spl0_2 ),
    inference(beta_eta_normalization,[status(thm)],[f125]) ).

thf(f125,plain,
    ( ( ( ^ [Y0: $i] :
            ( ( in @ Y0 @ ( sK2 @ sK3 @ sK4 ) )
           => ( in @ Y0 @ sK5 ) )
        @ sK7 )
      = $false )
    | ~ spl0_2 ),
    inference(sigma_clausification,[status(thm)],[f118]) ).

thf(f118,plain,
    ( ( $false
      = ( !! @ $i
        @ ^ [Y0: $i] :
            ( ( in @ Y0 @ ( sK2 @ sK3 @ sK4 ) )
           => ( in @ Y0 @ sK5 ) ) ) )
    | ~ spl0_2 ),
    inference(not_proxy_clausification,[status(thm)],[f112]) ).

thf(f112,plain,
    ( ( $true
      = ( ~ ( !! @ $i
            @ ^ [Y0: $i] :
                ( ( in @ Y0 @ ( sK2 @ sK3 @ sK4 ) )
               => ( in @ Y0 @ sK5 ) ) ) ) )
    | ~ spl0_2 ),
    inference(boolean_simplification,[status(thm)],[f109]) ).

thf(f109,plain,
    ( ( ( ( !! @ $i
          @ ^ [Y0: $i] :
              ( ( in @ Y0 @ ( sK2 @ sK3 @ sK4 ) )
             => ( in @ Y0 @ sK5 ) ) )
       => $false )
      = $true )
    | ~ spl0_2 ),
    inference(superposition,[status(thm)],[f46,f102]) ).

thf(f102,plain,
    ( ( $false
      = ( subset @ ( sK2 @ sK3 @ sK4 ) @ sK5 ) )
    | ~ spl0_2 ),
    inference(not_proxy_clausification,[status(thm)],[f93]) ).

thf(f93,plain,
    ( ( $true
      = ( ~ ( subset @ ( sK2 @ sK3 @ sK4 ) @ sK5 ) ) )
    | ~ spl0_2 ),
    inference(avatar_component_clause,[status(thm)],[f92]) ).

thf(f92,definition,
    ( spl0_2
  <=> ( $true
      = ( ~ ( subset @ ( sK2 @ sK3 @ sK4 ) @ sK5 ) ) ) ),
    introduced(definition,[new_symbols(naming,[spl0_2])],[avatar_definition]) ).

thf(f94,plain,
    ( spl0_1
    | spl0_2 ),
    inference(avatar_split_clause,[status(thm)],[f87,f92,f89]) ).

thf(f87,plain,
    ( ( ( subset @ sK5 @ ( sK2 @ sK3 @ sK4 ) )
      = $false )
    | ( $true
      = ( ~ ( subset @ ( sK2 @ sK3 @ sK4 ) @ sK5 ) ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f86]) ).

thf(f86,plain,
    ( $true
    = ( ( subset @ sK5 @ ( sK2 @ sK3 @ sK4 ) )
     => ~ ( subset @ ( sK2 @ sK3 @ sK4 ) @ sK5 ) ) ),
    inference(boolean_simplification,[status(thm)],[f85]) ).

thf(f85,plain,
    ( $true
    = ( ( subset @ sK5 @ ( sK2 @ sK3 @ sK4 ) )
     => ( ( subset @ ( sK2 @ sK3 @ sK4 ) @ sK5 )
       => $false ) ) ),
    inference(superposition,[status(thm)],[f41,f78]) ).

thf(f78,plain,
    ( $false
    = ( ( sK2 @ sK3 @ sK4 )
      = sK5 ) ),
    inference(binary_proxy_clausification,[status(thm)],[f77]) ).

thf(f41,plain,
    ! [X2: $i,X1: $i] :
      ( $true
      = ( ( subset @ X1 @ X2 )
       => ( ( subset @ X2 @ X1 )
         => ( X2 = X1 ) ) ) ),
    inference(beta_eta_normalization,[status(thm)],[f40]) ).

thf(f40,plain,
    ! [X2: $i,X1: $i] :
      ( ( ^ [Y0: $i] :
            ( ( subset @ X1 @ Y0 )
           => ( ( subset @ Y0 @ X1 )
             => ( Y0 = X1 ) ) )
        @ X2 )
      = $true ),
    inference(pi_clausification,[status(thm)],[f39]) ).

thf(f39,plain,
    ! [X1: $i] :
      ( $true
      = ( !! @ $i
        @ ^ [Y0: $i] :
            ( ( subset @ X1 @ Y0 )
           => ( ( subset @ Y0 @ X1 )
             => ( Y0 = X1 ) ) ) ) ),
    inference(beta_eta_normalization,[status(thm)],[f38]) ).

thf(f38,plain,
    ! [X1: $i] :
      ( ( ^ [Y0: $i] :
            ( !! @ $i
            @ ^ [Y1: $i] :
                ( ( subset @ Y0 @ Y1 )
               => ( ( subset @ Y1 @ Y0 )
                 => ( Y1 = Y0 ) ) ) )
        @ X1 )
      = $true ),
    inference(pi_clausification,[status(thm)],[f33]) ).

thf(f33,plain,
    ( ( !! @ $i
      @ ^ [Y0: $i] :
          ( !! @ $i
          @ ^ [Y1: $i] :
              ( ( subset @ Y0 @ Y1 )
             => ( ( subset @ Y1 @ Y0 )
               => ( Y1 = Y0 ) ) ) ) )
    = $true ),
    inference(binary_proxy_clausification,[status(thm)],[f31]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem  : SEU794^2 : TPTP v9.2.1. Released v3.7.0.
% 0.12/0.13  % Command  : /export/starexec/sandbox/solver/bin/run_DT2H2X /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 0.16/0.34  % Computer : n026.cluster.edu
% 0.16/0.34  % Model    : x86_64 x86_64
% 0.16/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.16/0.34  % Memory   : 8042.1875MB
% 0.16/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.16/0.34  % CPULimit : 300
% 0.16/0.34  % WCLimit  : 300
% 0.16/0.34  % DateTime : Tue Feb 24 12:34:25 EST 2026
% 0.16/0.34  % CPUTime  : 
% 0.16/0.34  Running /export/starexec/sandbox/solver/bin/run_DT2H2X /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 0.19/0.48  ---- Original DTF file ---
% 0.19/0.48  thf(spec,logic,$$dhol).
% 0.19/0.48  %------------------------------------------------------------------------------
% 0.19/0.48  % File     : SEU794^2 : TPTP v9.2.1. Released v3.7.0.
% 0.19/0.48  % Domain   : Set Theory
% 0.19/0.48  % Problem  : More about Functions - Images of Functions
% 0.19/0.48  % Version  : Especial > Reduced > Especial.
% 0.19/0.48  % English  : (! A:i.! f:i>i.exu (^ B:i.! x:i.in x B <->
% 0.19/0.48  %            (? y:i.in y A & x = f y)))
% 0.19/0.48  
% 0.19/0.48  % Refs     : [Bro08] Brown (2008), Email to G. Sutcliffe
% 0.19/0.48  % Source   : [Bro08]
% 0.19/0.48  % Names    : ZFC296l [Bro08]
% 0.19/0.48  
% 0.19/0.48  % Status   : Theorem
% 0.19/0.48  % Rating   : 0.67 v9.1.0, 0.62 v9.0.0, 0.80 v8.2.0, 0.92 v8.1.0, 0.82 v7.5.0, 0.57 v7.4.0, 0.67 v7.2.0, 0.62 v7.1.0, 0.75 v7.0.0, 0.57 v6.4.0, 0.67 v6.3.0, 0.60 v6.2.0, 0.43 v6.1.0, 0.57 v5.5.0, 0.67 v5.4.0, 1.00 v3.7.0
% 0.19/0.48  % Syntax   : Number of formulae    :   11 (   4 unt;   6 typ;   4 def)
% 0.19/0.48  %            Number of atoms       :   25 (   8 equ;   0 cnn)
% 0.19/0.48  %            Maximal formula atoms :    7 (   5 avg)
% 0.19/0.48  %            Number of connectives :   36 (   0   ~;   0   |;   3   &;  23   @)
% 0.19/0.48  %                                         (   2 <=>;   8  =>;   0  <=;   0 <~>)
% 0.19/0.48  %            Maximal formula depth :   14 (   4 avg)
% 0.19/0.48  %            Number of types       :    2 (   0 usr)
% 0.19/0.48  %            Number of type conns  :    9 (   9   >;   0   *;   0   +;   0  <<)
% 0.19/0.48  %            Number of symbols     :    7 (   6 usr;   3 con; 0-2 aty)
% 0.19/0.48  %            Number of variables   :   18 (   2   ^;  12   !;   4   ?;  18   :)
% 0.19/0.48  % SPC      : TH0_THM_EQU_NAR
% 0.19/0.48  
% 0.19/0.48  % Comments : http://mathgate.info/detsetitem.php?id=416
% 0.19/0.48  %------------------------------------------------------------------------------
% 0.19/0.48  thf(in_type,type,
% 0.19/0.48      in: $i > $i > $o ).
% 0.19/0.48  
% 0.19/0.48  thf(exu_type,type,
% 0.19/0.48      exu: ( $i > $o ) > $o ).
% 0.19/0.48  
% 0.19/0.48  thf(exu,definition,
% 0.19/0.48      ( exu
% 0.19/0.48      = ( ^ [Xphi: $i > $o] :
% 0.19/0.48          ? [Xx: $i] :
% 0.19/0.48            ( ( Xphi @ Xx )
% 0.19/0.48            & ! [Xy: $i] :
% 0.19/0.48                ( ( Xphi @ Xy )
% 0.19/0.48               => ( Xx = Xy ) ) ) ) ) ).
% 0.19/0.48  
% 0.19/0.48  thf(subset_type,type,
% 0.19/0.48      subset: $i > $i > $o ).
% 0.19/0.48  
% 0.19/0.48  thf(subsetI1_type,type,
% 0.19/0.48      subsetI1: $o ).
% 0.19/0.48  
% 0.19/0.48  thf(subsetI1,definition,
% 0.19/0.48      ( subsetI1
% 0.19/0.48      = ( ! [A: $i,B: $i] :
% 0.19/0.48            ( ! [Xx: $i] :
% 0.19/0.48                ( ( in @ Xx @ A )
% 0.19/0.48               => ( in @ Xx @ B ) )
% 0.19/0.48           => ( subset @ A @ B ) ) ) ) ).
% 0.19/0.48  
% 0.19/0.48  thf(setextsub_type,type,
% 0.19/0.48      setextsub: $o ).
% 0.19/0.48  
% 0.19/0.48  thf(setextsub,definition,
% 0.19/0.48      ( setextsub
% 0.19/0.48      = ( ! [A: $i,B: $i] :
% 0.19/0.48            ( ( subset @ A @ B )
% 0.19/0.48           => ( ( subset @ B @ A )
% 0.19/0.48             => ( A = B ) ) ) ) ) ).
% 0.19/0.48  
% 0.19/0.48  thf(image1Ex_type,type,
% 0.19/0.48      image1Ex: $o ).
% 0.19/0.48  
% 0.19/0.48  thf(image1Ex,definition,
% 0.19/0.48      ( image1Ex
% 0.19/0.48      = ( ! [A: $i,Xf: $i > $i] :
% 0.19/0.48          ? [B: $i] :
% 0.19/0.48          ! [Xx: $i] :
% 0.19/0.48            ( ( in @ Xx @ B )
% 0.19/0.48          <=> ? [Xy: $i] :
% 0.19/0.48                ( ( in @ Xy @ A )
% 0.19/0.48                & ( Xx
% 0.19/0.48                  = ( Xf @ Xy ) ) ) ) ) ) ).
% 0.19/0.48  
% 0.19/0.48  thf(image1Ex1,conjecture,
% 0.19/0.48      ( subsetI1
% 0.19/0.48     => ( setextsub
% 0.19/0.48       => ( image1Ex
% 0.19/0.48         => ! [A: $i,Xf: $i > $i] :
% 0.19/0.48              ( exu
% 0.19/0.48              @ ^ [B: $i] :
% 0.19/0.48                ! [Xx: $i] :
% 0.19/0.48                  ( ( in @ Xx @ B )
% 0.19/0.48                <=> ? [Xy: $i] :
% 0.19/0.48                      ( ( in @ Xy @ A )
% 0.19/0.48                      & ( Xx
% 0.19/0.48                        = ( Xf @ Xy ) ) ) ) ) ) ) ) ).
% 0.19/0.48  
% 0.19/0.48  %------------------------------------------------------------------------------
% 0.19/0.48  ------------------------
% 0.32/1.40  ---- Embedded in THF ---
% 0.32/1.40  %%% This output was generated by embedproblem, version 1.9.5 (library version 1.9).
% 0.32/1.40  %%% Generated on Tue Feb 24 12:34:26 EST 2026
% 0.32/1.40  %%% using '$$dhol' embedding, version 1.3.0.
% 0.32/1.40  %%% Logic specification used:
% 0.32/1.40  %%% thf(spec, logic, $$dhol).
% 0.32/1.40  
% 0.32/1.40  % SZS output start ListOfTHF for /export/starexec/sandbox/tmp/tmp.0V7zyvtR6B/DTF2DTF26351.p
% See solution above
% 0.32/1.40  ------------------------
% 0.32/1.41  ---- Cleaned THF ---
% 0.32/1.41  thf(in_type,type,
% 0.32/1.41      in: $i > $i > $o ).
% 0.32/1.41  
% 0.32/1.41  thf(exu_type,type,
% 0.32/1.41      exu: ( $i > $o ) > $o ).
% 0.32/1.41  
% 0.32/1.41  thf(exu,definition,
% 0.32/1.41      ( exu
% 0.32/1.41      = ( ^ [Xphi: $i > $o] :
% 0.32/1.41          ? [Xx: $i] :
% 0.32/1.41            ( ( Xphi @ Xx )
% 0.32/1.41            & ! [Xy: $i] :
% 0.32/1.41                ( ( Xphi @ Xy )
% 0.32/1.41               => ( Xx = Xy ) ) ) ) ) ).
% 0.32/1.41  
% 0.32/1.41  thf(subset_type,type,
% 0.32/1.41      subset: $i > $i > $o ).
% 0.32/1.41  
% 0.32/1.41  thf(subsetI1_type,type,
% 0.32/1.41      subsetI1: $o ).
% 0.32/1.41  
% 0.32/1.41  thf(subsetI1,definition,
% 0.32/1.41      ( subsetI1
% 0.32/1.41      = ( ! [A: $i,B: $i] :
% 0.32/1.41            ( ! [Xx: $i] :
% 0.32/1.41                ( ( in @ Xx @ A )
% 0.32/1.41               => ( in @ Xx @ B ) )
% 0.32/1.41           => ( subset @ A @ B ) ) ) ) ).
% 0.32/1.41  
% 0.32/1.41  thf(setextsub_type,type,
% 0.32/1.41      setextsub: $o ).
% 0.32/1.41  
% 0.32/1.41  thf(setextsub,definition,
% 0.32/1.41      ( setextsub
% 0.32/1.41      = ( ! [A: $i,B: $i] :
% 0.32/1.41            ( ( subset @ A @ B )
% 0.32/1.41           => ( ( subset @ B @ A )
% 0.32/1.41             => ( A = B ) ) ) ) ) ).
% 0.32/1.41  
% 0.32/1.41  thf(image1Ex_type,type,
% 0.32/1.41      image1Ex: $o ).
% 0.32/1.41  
% 0.32/1.41  thf(image1Ex,definition,
% 0.32/1.41      ( image1Ex
% 0.32/1.41      = ( ! [A: $i,Xf: $i > $i] :
% 0.32/1.41          ? [B: $i] :
% 0.32/1.41          ! [Xx: $i] :
% 0.32/1.41            ( ( in @ Xx @ B )
% 0.32/1.41          <=> ? [Xy: $i] :
% 0.32/1.41                ( ( in @ Xy @ A )
% 0.32/1.41                & ( Xx
% 0.32/1.41                  = ( Xf @ Xy ) ) ) ) ) ) ).
% 0.32/1.41  
% 0.32/1.41  thf(image1Ex1,conjecture,
% 0.32/1.41      ( subsetI1
% 0.32/1.41     => ( setextsub
% 0.32/1.41       => ( image1Ex
% 0.32/1.41         => ! [A: $i,Xf: $i > $i] :
% 0.32/1.41              ( exu
% 0.32/1.41              @ ^ [B: $i] :
% 0.32/1.41                ! [Xx: $i] :
% 0.32/1.41                  ( ( in @ Xx @ B )
% 0.32/1.41                <=> ? [Xy: $i] :
% 0.32/1.41                      ( ( in @ Xy @ A )
% 0.32/1.41                      & ( Xx
% 0.32/1.41                        = ( Xf @ Xy ) ) ) ) ) ) ) ) ).
% 0.32/1.41  ------------------------
% 0.32/1.43  % (26451)lrs+10_1:1_au=on:inj=on:i=2:si=on:rtra=on_0 on DTF2THF_26351 for (2999ds/2Mi)
% 0.32/1.43  % (26454)lrs+1004_1:128_cond=on:e2e=on:sp=weighted_frequency:i=18:si=on:rtra=on_0 on DTF2THF_26351 for (2999ds/18Mi)
% 0.32/1.43  % (26453)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_26351 for (2999ds/275Mi)
% 0.32/1.43  % (26449)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_26351 for (2999ds/4Mi)
% 0.32/1.43  % (26448)lrs+1002_1:8_bd=off:fd=off:hud=10:tnu=1:i=183:si=on:rtra=on_0 on DTF2THF_26351 for (2999ds/183Mi)
% 0.32/1.43  % (26452)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_26351 for (2999ds/2Mi)
% 0.32/1.43  % (26450)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_26351 for (2999ds/27Mi)
% 0.32/1.43  % (26451)Instruction limit reached!
% 0.32/1.43  % (26451)------------------------------
% 0.32/1.43  % (26451)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 0.32/1.43  % (26451)Termination reason: Unknown
% 0.32/1.43  % (26451)Termination phase: Property scanning
% 0.32/1.43  
% 0.32/1.43  % (26451)Memory used [KB]: 1023
% 0.32/1.43  % (26451)Time elapsed: 0.003 s
% 0.32/1.43  % (26451)Instructions burned: 2 (million)
% 0.32/1.43  % (26451)------------------------------
% 0.32/1.43  % (26451)------------------------------
% 0.32/1.43  % (26452)Instruction limit reached!
% 0.32/1.43  % (26452)------------------------------
% 0.32/1.43  % (26452)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 0.32/1.43  % (26452)Termination reason: Unknown
% 0.32/1.43  % (26452)Termination phase: Property scanning
% 0.32/1.43  
% 0.32/1.43  % (26452)Memory used [KB]: 1023
% 0.32/1.43  % (26452)Time elapsed: 0.003 s
% 0.32/1.43  % (26452)Instructions burned: 3 (million)
% 0.32/1.43  % (26452)------------------------------
% 0.32/1.43  % (26452)------------------------------
% 0.32/1.43  % (26449)Instruction limit reached!
% 0.32/1.43  % (26449)------------------------------
% 0.32/1.43  % (26449)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 0.32/1.43  % (26449)Termination reason: Unknown
% 0.32/1.43  % (26449)Termination phase: Saturation
% 0.32/1.43  
% 0.32/1.43  % (26449)Memory used [KB]: 5500
% 0.32/1.43  % (26449)Time elapsed: 0.004 s
% 0.32/1.43  % (26449)Instructions burned: 4 (million)
% 0.32/1.43  % (26449)------------------------------
% 0.32/1.43  % (26449)------------------------------
% 0.32/1.44  % (26454)Instruction limit reached!
% 0.32/1.44  % (26454)------------------------------
% 0.32/1.44  % (26454)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 0.32/1.44  % (26454)Termination reason: Unknown
% 0.32/1.44  % (26454)Termination phase: Saturation
% 0.32/1.44  
% 0.32/1.44  % (26454)Memory used [KB]: 5628
% 0.32/1.44  % (26454)Time elapsed: 0.011 s
% 0.32/1.44  % (26454)Instructions burned: 18 (million)
% 0.32/1.44  % (26454)------------------------------
% 0.32/1.44  % (26454)------------------------------
% 0.32/1.44  % (26450)Instruction limit reached!
% 0.32/1.44  % (26450)------------------------------
% 0.32/1.44  % (26450)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 0.32/1.44  % (26450)Termination reason: Unknown
% 0.32/1.44  % (26450)Termination phase: Saturation
% 0.32/1.44  
% 0.32/1.44  % (26450)Memory used [KB]: 5628
% 0.32/1.44  % (26450)Time elapsed: 0.016 s
% 0.32/1.44  % (26450)Instructions burned: 27 (million)
% 0.32/1.44  % (26450)------------------------------
% 0.32/1.44  % (26450)------------------------------
% 0.32/1.45  % (26455)lrs+10_1:1_bet=on:cnfonf=off:fd=off:hud=5:inj=on:i=3:si=on:rtra=on_0 on DTF2THF_26351 for (2999ds/3Mi)
% 0.32/1.45  % (26456)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_26351 for (2999ds/37Mi)
% 0.32/1.45  % (26457)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_26351 for (2999ds/15Mi)
% 0.32/1.45  % (26455)Instruction limit reached!
% 0.32/1.45  % (26455)------------------------------
% 0.32/1.45  % (26455)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 0.32/1.45  % (26455)Termination reason: Unknown
% 0.32/1.45  % (26455)Termination phase: Saturation
% 0.32/1.45  
% 0.32/1.45  % (26455)Memory used [KB]: 1023
% 0.32/1.45  % (26455)Time elapsed: 0.003 s
% 0.32/1.45  % (26455)Instructions burned: 3 (million)
% 0.32/1.45  % (26455)------------------------------
% 0.32/1.45  % (26455)------------------------------
% 0.32/1.45  % (26457)Instruction limit reached!
% 0.32/1.45  % (26457)------------------------------
% 0.32/1.45  % (26457)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 0.32/1.45  % (26457)Termination reason: Unknown
% 0.32/1.45  % (26457)Termination phase: Saturation
% 0.32/1.45  
% 0.32/1.45  % (26457)Memory used [KB]: 5628
% 0.32/1.45  % (26457)Time elapsed: 0.009 s
% 0.32/1.45  % (26457)Instructions burned: 15 (million)
% 0.32/1.45  % (26457)------------------------------
% 0.32/1.45  % (26457)------------------------------
% 0.32/1.45  % (26458)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_26351 for (2999ds/3Mi)
% 0.32/1.46  % (26458)Instruction limit reached!
% 0.32/1.46  % (26458)------------------------------
% 0.32/1.46  % (26458)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 0.32/1.46  % (26458)Termination reason: Unknown
% 0.32/1.46  % (26458)Termination phase: Saturation
% 0.32/1.46  
% 0.32/1.46  % (26458)Memory used [KB]: 1023
% 0.32/1.46  % (26458)Time elapsed: 0.003 s
% 0.32/1.46  % (26458)Instructions burned: 3 (million)
% 0.32/1.46  % (26458)------------------------------
% 0.32/1.46  % (26458)------------------------------
% 0.32/1.46  % (26459)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_26351 for (2999ds/1041Mi)
% 0.32/1.46  % (26460)lrs+10_1:1_av=off:chr=on:plsq=on:slsq=on:i=7:si=on:rtra=on_0 on DTF2THF_26351 for (2999ds/7Mi)
% 0.32/1.46  % (26456)Instruction limit reached!
% 0.32/1.46  % (26456)------------------------------
% 0.32/1.46  % (26456)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 0.32/1.46  % (26456)Termination reason: Unknown
% 0.32/1.46  % (26456)Termination phase: Saturation
% 0.32/1.46  
% 0.32/1.46  % (26456)Memory used [KB]: 5756
% 0.32/1.46  % (26456)Time elapsed: 0.020 s
% 0.32/1.46  % (26456)Instructions burned: 38 (million)
% 0.32/1.46  % (26456)------------------------------
% 0.32/1.46  % (26456)------------------------------
% 0.32/1.47  % (26460)Instruction limit reached!
% 0.32/1.47  % (26460)------------------------------
% 0.32/1.47  % (26460)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 0.32/1.47  % (26460)Termination reason: Unknown
% 0.32/1.47  % (26460)Termination phase: Saturation
% 0.32/1.47  
% 0.32/1.47  % (26460)Memory used [KB]: 1023
% 0.32/1.47  % (26460)Time elapsed: 0.005 s
% 0.32/1.47  % (26460)Instructions burned: 8 (million)
% 0.32/1.47  % (26460)------------------------------
% 0.32/1.47  % (26460)------------------------------
% 0.32/1.47  % (26461)lrs+10_1:1_acc=on:amm=sco:cs=on:tgt=full:i=16:si=on:rtra=on_0 on DTF2THF_26351 for (2999ds/16Mi)
% 0.32/1.47  % (26462)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_26351 for (2999ds/3Mi)
% 0.32/1.47  % (26462)Instruction limit reached!
% 0.32/1.47  % (26462)------------------------------
% 0.32/1.47  % (26462)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 0.32/1.47  % (26462)Termination reason: Unknown
% 0.32/1.47  % (26462)Termination phase: Twee Goal Transformation
% 0.32/1.47  
% 0.32/1.47  % (26462)Memory used [KB]: 1023
% 0.32/1.47  % (26462)Time elapsed: 0.003 s
% 0.32/1.47  % (26462)Instructions burned: 4 (million)
% 0.32/1.47  % (26462)------------------------------
% 0.32/1.47  % (26462)------------------------------
% 0.32/1.48  % (26461)Instruction limit reached!
% 0.32/1.48  % (26461)------------------------------
% 0.32/1.48  % (26461)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 0.32/1.48  % (26461)Termination reason: Unknown
% 0.32/1.48  % (26461)Termination phase: Saturation
% 0.32/1.48  
% 0.32/1.48  % (26461)Memory used [KB]: 5756
% 0.32/1.48  % (26461)Time elapsed: 0.010 s
% 0.32/1.48  % (26461)Instructions burned: 16 (million)
% 0.32/1.48  % (26461)------------------------------
% 0.32/1.48  % (26461)------------------------------
% 0.32/1.48  % (26463)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_26351 for (2999ds/3Mi)
% 0.32/1.48  % (26459)First to succeed.
% 0.32/1.48  % (26463)Instruction limit reached!
% 0.32/1.48  % (26463)------------------------------
% 0.32/1.48  % (26463)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 0.32/1.48  % (26463)Termination reason: Unknown
% 0.32/1.48  % (26463)Termination phase: Property scanning
% 0.32/1.48  
% 0.32/1.48  % (26463)Memory used [KB]: 1023
% 0.32/1.48  % (26463)Time elapsed: 0.003 s
% 0.32/1.48  % (26463)Instructions burned: 4 (million)
% 0.32/1.48  % (26463)------------------------------
% 0.32/1.48  % (26463)------------------------------
% 0.32/1.48  % (26464)lrs+10_1:1_cnfonf=off:cs=on:hud=3:prag=on:sup=off:i=7:si=on:rtra=on_0 on DTF2THF_26351 for (2999ds/7Mi)
% 0.32/1.48  % (26464)Refutation not found, incomplete strategy
% 0.32/1.48  % (26464)------------------------------
% 0.32/1.48  % (26464)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 0.32/1.48  % (26464)Termination reason: Refutation not found, incomplete strategy
% 0.32/1.48  
% 0.32/1.48  
% 0.32/1.48  % (26464)Memory used [KB]: 5500
% 0.32/1.48  % (26464)Time elapsed: 0.003 s
% 0.32/1.48  % (26464)Instructions burned: 4 (million)
% 0.32/1.48  % (26464)------------------------------
% 0.32/1.48  % (26464)------------------------------
% 0.32/1.49  % (26459)Refutation found. Thanks to Tanya!
% 0.32/1.49  % SZS status Theorem for DTF2THF_26351
% 0.32/1.49  % SZS output start Proof for DTF2THF_26351
% 0.32/1.49  thf(func_def_0, type, in: $i > $i > $o).
% 0.32/1.49  thf(func_def_1, type, exu: ($i > $o) > $o).
% 0.32/1.49  thf(func_def_3, type, subset: $i > $i > $o).
% 0.32/1.49  thf(func_def_25, type, ph1: !>[X0: $tType]:(X0)).
% 0.32/1.49  thf(func_def_26, type, sK2: ($i > $i) > $i > $i).
% 0.32/1.49  thf(func_def_27, type, sK3: $i > $i).
% 0.32/1.49  thf(f180,plain,(
% 0.32/1.49    $false),
% 0.32/1.49    inference(avatar_sat_refutation,[status(thm)],[f94,f132,f179])).
% 0.32/1.49  thf(f179,plain,(
% 0.32/1.49    ~spl0_1),
% 0.32/1.49    inference(avatar_contradiction_clause,[status(thm)],[f178])).
% 0.32/1.49  thf(f178,plain,(
% 0.32/1.49    $false | ~spl0_1),
% 0.32/1.49    inference(trivial_inequality_removal,[status(thm)],[f177])).
% 0.32/1.49  thf(f177,plain,(
% 0.32/1.49    ($true = $false) | ~spl0_1),
% 0.32/1.49    inference(boolean_simplification,[status(thm)],[f176])).
% 0.32/1.49  thf(f176,plain,(
% 0.32/1.49    ($false = ((in @ sK8 @ sK5) => (in @ sK8 @ sK5))) | ~spl0_1),
% 0.32/1.49    inference(forward_demodulation,[status(thm)],[f175,f108])).
% 0.32/1.49  thf(f108,plain,(
% 0.32/1.49    ( ! [X0 : $i] : (((in @ X0 @ sK5) = (in @ X0 @ (sK2 @ sK3 @ sK4)))) )),
% 0.32/1.49    inference(superposition,[status(thm)],[f62,f100])).
% 0.32/1.49  thf(f100,plain,(
% 0.32/1.49    ( ! [X1 : $i] : (((in @ X1 @ sK5) = (?? @ $i @ (^[Y0 : $i]: ((in @ Y0 @ sK4) & ((sK3 @ Y0) = X1)))))) )),
% 0.32/1.49    inference(binary_proxy_clausification,[status(thm)],[f99])).
% 0.32/1.49  thf(f99,plain,(
% 0.32/1.49    ( ! [X1 : $i] : ((((?? @ $i @ (^[Y0 : $i]: ((in @ Y0 @ sK4) & ((sK3 @ Y0) = X1)))) = (in @ X1 @ sK5)) = $true)) )),
% 0.32/1.49    inference(beta_eta_normalization,[status(thm)],[f97])).
% 0.32/1.49  thf(f97,plain,(
% 0.32/1.49    ( ! [X1 : $i] : (($true = ((^[Y0 : $i]: ((?? @ $i @ (^[Y1 : $i]: ((in @ Y1 @ sK4) & ((sK3 @ Y1) = Y0)))) = (in @ Y0 @ sK5))) @ X1))) )),
% 0.32/1.49    inference(pi_clausification,[status(thm)],[f79])).
% 0.32/1.49  thf(f79,plain,(
% 0.32/1.49    ($true = (!! @ $i @ (^[Y0 : $i]: ((?? @ $i @ (^[Y1 : $i]: ((in @ Y1 @ sK4) & ((sK3 @ Y1) = Y0)))) = (in @ Y0 @ sK5)))))),
% 0.32/1.49    inference(binary_proxy_clausification,[status(thm)],[f77])).
% 0.32/1.49  thf(f77,plain,(
% 0.32/1.49    ($false = ((!! @ $i @ (^[Y0 : $i]: ((?? @ $i @ (^[Y1 : $i]: ((in @ Y1 @ sK4) & ((sK3 @ Y1) = Y0)))) = (in @ Y0 @ sK5)))) => ((sK2 @ sK3 @ sK4) = sK5)))),
% 0.32/1.49    inference(beta_eta_normalization,[status(thm)],[f74])).
% 0.32/1.49  thf(f74,plain,(
% 0.32/1.49    (((^[Y0 : $i]: ((!! @ $i @ (^[Y1 : $i]: ((?? @ $i @ (^[Y2 : $i]: ((in @ Y2 @ sK4) & ((sK3 @ Y2) = Y1)))) = (in @ Y1 @ Y0)))) => ((sK2 @ sK3 @ sK4) = Y0))) @ sK5) = $false)),
% 0.32/1.49    inference(sigma_clausification,[status(thm)],[f73])).
% 0.32/1.49  thf(f73,plain,(
% 0.32/1.49    ($false = (!! @ $i @ (^[Y0 : $i]: ((!! @ $i @ (^[Y1 : $i]: ((?? @ $i @ (^[Y2 : $i]: ((in @ Y2 @ sK4) & ((sK3 @ Y2) = Y1)))) = (in @ Y1 @ Y0)))) => ((sK2 @ sK3 @ sK4) = Y0)))))),
% 0.32/1.49    inference(boolean_simplification,[status(thm)],[f72])).
% 0.32/1.49  thf(f72,plain,(
% 0.32/1.49    (($true & (!! @ $i @ (^[Y0 : $i]: ((!! @ $i @ (^[Y1 : $i]: ((?? @ $i @ (^[Y2 : $i]: ((in @ Y2 @ sK4) & ((sK3 @ Y2) = Y1)))) = (in @ Y1 @ Y0)))) => ((sK2 @ sK3 @ sK4) = Y0))))) = $false)),
% 0.32/1.49    inference(superposition,[status(thm)],[f70,f59])).
% 0.32/1.49  thf(f59,plain,(
% 0.32/1.49    ( ! [X2 : $i,X1 : $i > $i] : (($true = (!! @ $i @ (^[Y0 : $i]: ((?? @ $i @ (^[Y1 : $i]: ((in @ Y1 @ X2) & ((X1 @ Y1) = Y0)))) = (in @ Y0 @ (sK2 @ X1 @ X2))))))) )),
% 0.32/1.49    inference(beta_eta_normalization,[status(thm)],[f58])).
% 0.32/1.49  thf(f58,plain,(
% 0.32/1.49    ( ! [X2 : $i,X1 : $i > $i] : (($true = ((^[Y0 : $i]: (!! @ $i @ (^[Y1 : $i]: ((?? @ $i @ (^[Y2 : $i]: ((in @ Y2 @ X2) & ((X1 @ Y2) = Y1)))) = (in @ Y1 @ Y0))))) @ (sK2 @ X1 @ X2)))) )),
% 0.32/1.49    inference(sigma_clausification,[status(thm)],[f57])).
% 0.32/1.49  thf(f57,plain,(
% 0.32/1.49    ( ! [X2 : $i,X1 : $i > $i] : (($true = (?? @ $i @ (^[Y0 : $i]: (!! @ $i @ (^[Y1 : $i]: ((?? @ $i @ (^[Y2 : $i]: ((in @ Y2 @ X2) & ((X1 @ Y2) = Y1)))) = (in @ Y1 @ Y0)))))))) )),
% 0.32/1.49    inference(beta_eta_normalization,[status(thm)],[f56])).
% 0.32/1.49  thf(f56,plain,(
% 0.32/1.49    ( ! [X2 : $i,X1 : $i > $i] : (($true = ((^[Y0 : $i]: (?? @ $i @ (^[Y1 : $i]: (!! @ $i @ (^[Y2 : $i]: ((?? @ $i @ (^[Y3 : $i]: ((in @ Y3 @ Y0) & ((X1 @ Y3) = Y2)))) = (in @ Y2 @ Y1))))))) @ X2))) )),
% 0.32/1.49    inference(pi_clausification,[status(thm)],[f55])).
% 0.32/1.49  thf(f55,plain,(
% 0.32/1.49    ( ! [X1 : $i > $i] : (($true = (!! @ $i @ (^[Y0 : $i]: (?? @ $i @ (^[Y1 : $i]: (!! @ $i @ (^[Y2 : $i]: ((?? @ $i @ (^[Y3 : $i]: ((in @ Y3 @ Y0) & ((X1 @ Y3) = Y2)))) = (in @ Y2 @ Y1)))))))))) )),
% 0.32/1.49    inference(beta_eta_normalization,[status(thm)],[f54])).
% 0.32/1.49  thf(f54,plain,(
% 0.32/1.49    ( ! [X1 : $i > $i] : (($true = ((^[Y0 : $i > $i]: (!! @ $i @ (^[Y1 : $i]: (?? @ $i @ (^[Y2 : $i]: (!! @ $i @ (^[Y3 : $i]: ((?? @ $i @ (^[Y4 : $i]: ((in @ Y4 @ Y1) & ((Y0 @ Y4) = Y3)))) = (in @ Y3 @ Y2))))))))) @ X1))) )),
% 0.32/1.49    inference(pi_clausification,[status(thm)],[f49])).
% 0.32/1.49  thf(f49,plain,(
% 0.32/1.49    ($true = (!! @ ($i > $i) @ (^[Y0 : $i > $i]: (!! @ $i @ (^[Y1 : $i]: (?? @ $i @ (^[Y2 : $i]: (!! @ $i @ (^[Y3 : $i]: ((?? @ $i @ (^[Y4 : $i]: ((in @ Y4 @ Y1) & ((Y0 @ Y4) = Y3)))) = (in @ Y3 @ Y2)))))))))))),
% 0.32/1.49    inference(binary_proxy_clausification,[status(thm)],[f32])).
% 0.32/1.49  thf(f32,plain,(
% 0.32/1.49    ($false = ((!! @ ($i > $i) @ (^[Y0 : $i > $i]: (!! @ $i @ (^[Y1 : $i]: (?? @ $i @ (^[Y2 : $i]: (!! @ $i @ (^[Y3 : $i]: ((?? @ $i @ (^[Y4 : $i]: ((in @ Y4 @ Y1) & ((Y0 @ Y4) = Y3)))) = (in @ Y3 @ Y2)))))))))) => (!! @ ($i > $i) @ (^[Y0 : $i > $i]: (!! @ $i @ (^[Y1 : $i]: (?? @ $i @ (^[Y2 : $i]: ((!! @ $i @ (^[Y3 : $i]: ((?? @ $i @ (^[Y4 : $i]: ((in @ Y4 @ Y1) & ((Y0 @ Y4) = Y3)))) = (in @ Y3 @ Y2)))) & (!! @ $i @ (^[Y3 : $i]: ((!! @ $i @ (^[Y4 : $i]: ((?? @ $i @ (^[Y5 : $i]: ((in @ Y5 @ Y1) & ((Y0 @ Y5) = Y4)))) = (in @ Y4 @ Y3)))) => (Y2 = Y3)))))))))))))),
% 0.32/1.49    inference(binary_proxy_clausification,[status(thm)],[f31])).
% 0.32/1.49  thf(f31,plain,(
% 0.32/1.49    (((!! @ $i @ (^[Y0 : $i]: (!! @ $i @ (^[Y1 : $i]: ((subset @ Y0 @ Y1) => ((subset @ Y1 @ Y0) => (Y1 = Y0))))))) => ((!! @ ($i > $i) @ (^[Y0 : $i > $i]: (!! @ $i @ (^[Y1 : $i]: (?? @ $i @ (^[Y2 : $i]: (!! @ $i @ (^[Y3 : $i]: ((?? @ $i @ (^[Y4 : $i]: ((in @ Y4 @ Y1) & ((Y0 @ Y4) = Y3)))) = (in @ Y3 @ Y2)))))))))) => (!! @ ($i > $i) @ (^[Y0 : $i > $i]: (!! @ $i @ (^[Y1 : $i]: (?? @ $i @ (^[Y2 : $i]: ((!! @ $i @ (^[Y3 : $i]: ((?? @ $i @ (^[Y4 : $i]: ((in @ Y4 @ Y1) & ((Y0 @ Y4) = Y3)))) = (in @ Y3 @ Y2)))) & (!! @ $i @ (^[Y3 : $i]: ((!! @ $i @ (^[Y4 : $i]: ((?? @ $i @ (^[Y5 : $i]: ((in @ Y5 @ Y1) & ((Y0 @ Y5) = Y4)))) = (in @ Y4 @ Y3)))) => (Y2 = Y3))))))))))))) = $false)),
% 0.32/1.49    inference(boolean_simplification,[status(thm)],[f30])).
% 0.32/1.49  thf(f30,plain,(
% 0.32/1.49    ($false = ($true => ((!! @ $i @ (^[Y0 : $i]: (!! @ $i @ (^[Y1 : $i]: ((subset @ Y0 @ Y1) => ((subset @ Y1 @ Y0) => (Y1 = Y0))))))) => ((!! @ ($i > $i) @ (^[Y0 : $i > $i]: (!! @ $i @ (^[Y1 : $i]: (?? @ $i @ (^[Y2 : $i]: (!! @ $i @ (^[Y3 : $i]: ((?? @ $i @ (^[Y4 : $i]: ((in @ Y4 @ Y1) & ((Y0 @ Y4) = Y3)))) = (in @ Y3 @ Y2)))))))))) => (!! @ ($i > $i) @ (^[Y0 : $i > $i]: (!! @ $i @ (^[Y1 : $i]: (?? @ $i @ (^[Y2 : $i]: ((!! @ $i @ (^[Y3 : $i]: ((?? @ $i @ (^[Y4 : $i]: ((in @ Y4 @ Y1) & ((Y0 @ Y4) = Y3)))) = (in @ Y3 @ Y2)))) & (!! @ $i @ (^[Y3 : $i]: ((!! @ $i @ (^[Y4 : $i]: ((?? @ $i @ (^[Y5 : $i]: ((in @ Y5 @ Y1) & ((Y0 @ Y5) = Y4)))) = (in @ Y4 @ Y3)))) => (Y2 = Y3)))))))))))))))),
% 0.32/1.49    inference(backward_demodulation,[status(thm)],[f25,f29])).
% 0.32/1.49  thf(f29,plain,(
% 0.32/1.49    ((!! @ $i @ (^[Y0 : $i]: (!! @ $i @ (^[Y1 : $i]: ((!! @ $i @ (^[Y2 : $i]: ((in @ Y2 @ Y0) => (in @ Y2 @ Y1)))) => (subset @ Y0 @ Y1)))))) = $true)),
% 0.32/1.49    inference(binary_proxy_clausification,[status(thm)],[f25])).
% 0.32/1.49  thf(f25,plain,(
% 0.32/1.49    ($false = ((!! @ $i @ (^[Y0 : $i]: (!! @ $i @ (^[Y1 : $i]: ((!! @ $i @ (^[Y2 : $i]: ((in @ Y2 @ Y0) => (in @ Y2 @ Y1)))) => (subset @ Y0 @ Y1)))))) => ((!! @ $i @ (^[Y0 : $i]: (!! @ $i @ (^[Y1 : $i]: ((subset @ Y0 @ Y1) => ((subset @ Y1 @ Y0) => (Y1 = Y0))))))) => ((!! @ ($i > $i) @ (^[Y0 : $i > $i]: (!! @ $i @ (^[Y1 : $i]: (?? @ $i @ (^[Y2 : $i]: (!! @ $i @ (^[Y3 : $i]: ((?? @ $i @ (^[Y4 : $i]: ((in @ Y4 @ Y1) & ((Y0 @ Y4) = Y3)))) = (in @ Y3 @ Y2)))))))))) => (!! @ ($i > $i) @ (^[Y0 : $i > $i]: (!! @ $i @ (^[Y1 : $i]: (?? @ $i @ (^[Y2 : $i]: ((!! @ $i @ (^[Y3 : $i]: ((?? @ $i @ (^[Y4 : $i]: ((in @ Y4 @ Y1) & ((Y0 @ Y4) = Y3)))) = (in @ Y3 @ Y2)))) & (!! @ $i @ (^[Y3 : $i]: ((!! @ $i @ (^[Y4 : $i]: ((?? @ $i @ (^[Y5 : $i]: ((in @ Y5 @ Y1) & ((Y0 @ Y5) = Y4)))) = (in @ Y4 @ Y3)))) => (Y2 = Y3)))))))))))))))),
% 0.32/1.49    inference(not_proxy_clausification,[status(thm)],[f24])).
% 0.32/1.49  thf(f24,plain,(
% 0.32/1.49    ($true = (~ ((!! @ $i @ (^[Y0 : $i]: (!! @ $i @ (^[Y1 : $i]: ((!! @ $i @ (^[Y2 : $i]: ((in @ Y2 @ Y0) => (in @ Y2 @ Y1)))) => (subset @ Y0 @ Y1)))))) => ((!! @ $i @ (^[Y0 : $i]: (!! @ $i @ (^[Y1 : $i]: ((subset @ Y0 @ Y1) => ((subset @ Y1 @ Y0) => (Y1 = Y0))))))) => ((!! @ ($i > $i) @ (^[Y0 : $i > $i]: (!! @ $i @ (^[Y1 : $i]: (?? @ $i @ (^[Y2 : $i]: (!! @ $i @ (^[Y3 : $i]: ((?? @ $i @ (^[Y4 : $i]: ((in @ Y4 @ Y1) & ((Y0 @ Y4) = Y3)))) = (in @ Y3 @ Y2)))))))))) => (!! @ ($i > $i) @ (^[Y0 : $i > $i]: (!! @ $i @ (^[Y1 : $i]: (?? @ $i @ (^[Y2 : $i]: ((!! @ $i @ (^[Y3 : $i]: ((?? @ $i @ (^[Y4 : $i]: ((in @ Y4 @ Y1) & ((Y0 @ Y4) = Y3)))) = (in @ Y3 @ Y2)))) & (!! @ $i @ (^[Y3 : $i]: ((!! @ $i @ (^[Y4 : $i]: ((?? @ $i @ (^[Y5 : $i]: ((in @ Y5 @ Y1) & ((Y0 @ Y5) = Y4)))) = (in @ Y4 @ Y3)))) => (Y2 = Y3))))))))))))))))),
% 0.32/1.49    inference(beta_eta_normalization,[status(thm)],[f23])).
% 0.32/1.49  thf(f23,plain,(
% 0.32/1.49    ($true = (~ ((!! @ $i @ (^[Y0 : $i]: (!! @ $i @ (^[Y1 : $i]: ((!! @ $i @ (^[Y2 : $i]: ((in @ Y2 @ Y0) => (in @ Y2 @ Y1)))) => (subset @ Y0 @ Y1)))))) => ((!! @ $i @ (^[Y0 : $i]: (!! @ $i @ (^[Y1 : $i]: ((subset @ Y0 @ Y1) => ((subset @ Y1 @ Y0) => (Y1 = Y0))))))) => ((!! @ ($i > $i) @ (^[Y0 : $i > $i]: (!! @ $i @ (^[Y1 : $i]: (?? @ $i @ (^[Y2 : $i]: (!! @ $i @ (^[Y3 : $i]: ((?? @ $i @ (^[Y4 : $i]: ((in @ Y4 @ Y1) & ((Y0 @ Y4) = Y3)))) = (in @ Y3 @ Y2)))))))))) => (!! @ ($i > $i) @ (^[Y0 : $i > $i]: (!! @ $i @ (^[Y1 : $i]: ((^[Y2 : $i > $o]: (?? @ $i @ (^[Y3 : $i]: ((Y2 @ Y3) & (!! @ $i @ (^[Y4 : $i]: ((Y2 @ Y4) => (Y3 = Y4)))))))) @ (^[Y2 : $i]: (!! @ $i @ (^[Y3 : $i]: ((?? @ $i @ (^[Y4 : $i]: ((in @ Y4 @ Y1) & ((Y0 @ Y4) = Y3)))) = (in @ Y3 @ Y2)))))))))))))))),
% 0.32/1.49    inference(definition_unfolding,[status(thm)],[f22,f18,f19,f21,f20])).
% 0.32/1.49  thf(f20,plain,(
% 0.32/1.49    (exu = (^[Y0 : $i > $o]: (?? @ $i @ (^[Y1 : $i]: ((Y0 @ Y1) & (!! @ $i @ (^[Y2 : $i]: ((Y0 @ Y2) => (Y1 = Y2)))))))))),
% 0.32/1.49    inference(cnf_transformation,[status(thm)],[f17])).
% 0.32/1.49  thf(f17,plain,(
% 0.32/1.49    (exu = (^[Y0 : $i > $o]: (?? @ $i @ (^[Y1 : $i]: ((Y0 @ Y1) & (!! @ $i @ (^[Y2 : $i]: ((Y0 @ Y2) => (Y1 = Y2)))))))))),
% 0.32/1.49    inference(fool_elimination,[status(thm)],[f16])).
% 0.32/1.49  thf(f16,plain,(
% 0.32/1.49    ((^[X0 : $i > $o] : (? [X1 : $i] : (! [X2 : $i] : ((X0 @ X2) => (X1 = X2)) & (X0 @ X1)))) = exu)),
% 0.32/1.49    inference(rectify,[status(thm)],[f1])).
% 0.32/1.49  thf(f1,axiom,(
% 0.32/1.49    ((^[X0 : $i > $o] : (? [X1 : $i] : (! [X2 : $i] : ((X0 @ X2) => (X1 = X2)) & (X0 @ X1)))) = exu)),
% 0.32/1.49    file('/export/starexec/sandbox/tmp/tmp.0V7zyvtR6B/DTF2THF_26351.p',exu)).
% 0.32/1.49  thf(f21,plain,(
% 0.32/1.49    (image1Ex = (!! @ ($i > $i) @ (^[Y0 : $i > $i]: (!! @ $i @ (^[Y1 : $i]: (?? @ $i @ (^[Y2 : $i]: (!! @ $i @ (^[Y3 : $i]: ((?? @ $i @ (^[Y4 : $i]: ((in @ Y4 @ Y1) & ((Y0 @ Y4) = Y3)))) = (in @ Y3 @ Y2)))))))))))),
% 0.32/1.49    inference(cnf_transformation,[status(thm)],[f11])).
% 0.32/1.49  thf(f11,plain,(
% 0.32/1.49    (image1Ex = (!! @ ($i > $i) @ (^[Y0 : $i > $i]: (!! @ $i @ (^[Y1 : $i]: (?? @ $i @ (^[Y2 : $i]: (!! @ $i @ (^[Y3 : $i]: ((?? @ $i @ (^[Y4 : $i]: ((in @ Y4 @ Y1) & ((Y0 @ Y4) = Y3)))) = (in @ Y3 @ Y2)))))))))))),
% 0.32/1.49    inference(fool_elimination,[status(thm)],[f10])).
% 0.32/1.49  thf(f10,plain,(
% 0.32/1.49    (image1Ex = ! [X0 : $i,X1 : $i > $i] : ? [X2 : $i] : ! [X3 : $i] : (? [X4 : $i] : (((X1 @ X4) = X3) & (in @ X4 @ X0)) <=> (in @ X3 @ X2)))),
% 0.32/1.49    inference(rectify,[status(thm)],[f4])).
% 0.32/1.49  thf(f4,axiom,(
% 0.32/1.49    (image1Ex = ! [X3 : $i,X5 : $i > $i] : ? [X4 : $i] : ! [X1 : $i] : (? [X2 : $i] : (((X5 @ X2) = X1) & (in @ X2 @ X3)) <=> (in @ X1 @ X4)))),
% 0.32/1.49    file('/export/starexec/sandbox/tmp/tmp.0V7zyvtR6B/DTF2THF_26351.p',image1Ex)).
% 0.32/1.49  thf(f19,plain,(
% 0.32/1.49    (setextsub = (!! @ $i @ (^[Y0 : $i]: (!! @ $i @ (^[Y1 : $i]: ((subset @ Y0 @ Y1) => ((subset @ Y1 @ Y0) => (Y1 = Y0))))))))),
% 0.32/1.49    inference(cnf_transformation,[status(thm)],[f15])).
% 0.32/1.49  thf(f15,plain,(
% 0.32/1.49    (setextsub = (!! @ $i @ (^[Y0 : $i]: (!! @ $i @ (^[Y1 : $i]: ((subset @ Y0 @ Y1) => ((subset @ Y1 @ Y0) => (Y1 = Y0))))))))),
% 0.32/1.49    inference(fool_elimination,[status(thm)],[f14])).
% 0.32/1.49  thf(f14,plain,(
% 0.32/1.49    (! [X0 : $i,X1 : $i] : ((subset @ X1 @ X0) => ((subset @ X0 @ X1) => (X0 = X1))) = setextsub)),
% 0.32/1.49    inference(rectify,[status(thm)],[f3])).
% 0.32/1.49  thf(f3,axiom,(
% 0.32/1.49    (! [X4 : $i,X3 : $i] : ((subset @ X3 @ X4) => ((subset @ X4 @ X3) => (X3 = X4))) = setextsub)),
% 0.32/1.49    file('/export/starexec/sandbox/tmp/tmp.0V7zyvtR6B/DTF2THF_26351.p',setextsub)).
% 0.32/1.49  thf(f18,plain,(
% 0.32/1.49    (subsetI1 = (!! @ $i @ (^[Y0 : $i]: (!! @ $i @ (^[Y1 : $i]: ((!! @ $i @ (^[Y2 : $i]: ((in @ Y2 @ Y0) => (in @ Y2 @ Y1)))) => (subset @ Y0 @ Y1)))))))),
% 0.32/1.49    inference(cnf_transformation,[status(thm)],[f9])).
% 0.32/1.49  thf(f9,plain,(
% 0.32/1.49    (subsetI1 = (!! @ $i @ (^[Y0 : $i]: (!! @ $i @ (^[Y1 : $i]: ((!! @ $i @ (^[Y2 : $i]: ((in @ Y2 @ Y0) => (in @ Y2 @ Y1)))) => (subset @ Y0 @ Y1)))))))),
% 0.32/1.49    inference(fool_elimination,[status(thm)],[f8])).
% 0.32/1.49  thf(f8,plain,(
% 0.32/1.49    (! [X0 : $i,X1 : $i] : (! [X2 : $i] : ((in @ X2 @ X1) => (in @ X2 @ X0)) => (subset @ X1 @ X0)) = subsetI1)),
% 0.32/1.49    inference(rectify,[status(thm)],[f2])).
% 0.32/1.49  thf(f2,axiom,(
% 0.32/1.49    (! [X4 : $i,X3 : $i] : (! [X1 : $i] : ((in @ X1 @ X3) => (in @ X1 @ X4)) => (subset @ X3 @ X4)) = subsetI1)),
% 0.32/1.49    file('/export/starexec/sandbox/tmp/tmp.0V7zyvtR6B/DTF2THF_26351.p',subsetI1)).
% 0.32/1.49  thf(f22,plain,(
% 0.32/1.49    ($true = (~ (subsetI1 => (setextsub => (image1Ex => (!! @ ($i > $i) @ (^[Y0 : $i > $i]: (!! @ $i @ (^[Y1 : $i]: (exu @ (^[Y2 : $i]: (!! @ $i @ (^[Y3 : $i]: ((?? @ $i @ (^[Y4 : $i]: ((in @ Y4 @ Y1) & ((Y0 @ Y4) = Y3)))) = (in @ Y3 @ Y2)))))))))))))))),
% 0.32/1.49    inference(cnf_transformation,[status(thm)],[f13])).
% 0.32/1.49  thf(f13,plain,(
% 0.32/1.49    ($true = (~ (subsetI1 => (setextsub => (image1Ex => (!! @ ($i > $i) @ (^[Y0 : $i > $i]: (!! @ $i @ (^[Y1 : $i]: (exu @ (^[Y2 : $i]: (!! @ $i @ (^[Y3 : $i]: ((?? @ $i @ (^[Y4 : $i]: ((in @ Y4 @ Y1) & ((Y0 @ Y4) = Y3)))) = (in @ Y3 @ Y2)))))))))))))))),
% 0.32/1.49    inference(fool_elimination,[status(thm)],[f12])).
% 0.32/1.49  thf(f12,plain,(
% 0.32/1.49    ~(subsetI1 => (setextsub => (image1Ex => ! [X0 : $i,X1 : $i > $i] : (exu @ (^[X2 : $i] : (! [X3 : $i] : (? [X4 : $i] : (((X1 @ X4) = X3) & (in @ X4 @ X0)) <=> (in @ X3 @ X2))))))))),
% 0.32/1.49    inference(rectify,[status(thm)],[f6])).
% 0.32/1.49  thf(f6,negated_conjecture,(
% 0.32/1.49    ~(subsetI1 => (setextsub => (image1Ex => ! [X3 : $i,X5 : $i > $i] : (exu @ (^[X4 : $i] : (! [X1 : $i] : (? [X2 : $i] : (((X5 @ X2) = X1) & (in @ X2 @ X3)) <=> (in @ X1 @ X4))))))))),
% 0.32/1.49    inference(negated_conjecture,[status(cth)],[f5])).
% 0.32/1.49  thf(f5,conjecture,(
% 0.32/1.49    subsetI1 => (setextsub => (image1Ex => ! [X3 : $i,X5 : $i > $i] : (exu @ (^[X4 : $i] : (! [X1 : $i] : (? [X2 : $i] : (((X5 @ X2) = X1) & (in @ X2 @ X3)) <=> (in @ X1 @ X4)))))))),
% 0.32/1.49    file('/export/starexec/sandbox/tmp/tmp.0V7zyvtR6B/DTF2THF_26351.p',image1Ex1)).
% 0.32/1.49  thf(f70,plain,(
% 0.32/1.49    ( ! [X1 : $i] : (($false = ((!! @ $i @ (^[Y0 : $i]: ((?? @ $i @ (^[Y1 : $i]: ((in @ Y1 @ sK4) & ((sK3 @ Y1) = Y0)))) = (in @ Y0 @ X1)))) & (!! @ $i @ (^[Y0 : $i]: ((!! @ $i @ (^[Y1 : $i]: ((?? @ $i @ (^[Y2 : $i]: ((in @ Y2 @ sK4) & ((sK3 @ Y2) = Y1)))) = (in @ Y1 @ Y0)))) => (X1 = Y0))))))) )),
% 0.32/1.49    inference(beta_eta_normalization,[status(thm)],[f69])).
% 0.32/1.49  thf(f69,plain,(
% 0.32/1.49    ( ! [X1 : $i] : ((((^[Y0 : $i]: ((!! @ $i @ (^[Y1 : $i]: ((?? @ $i @ (^[Y2 : $i]: ((in @ Y2 @ sK4) & ((sK3 @ Y2) = Y1)))) = (in @ Y1 @ Y0)))) & (!! @ $i @ (^[Y1 : $i]: ((!! @ $i @ (^[Y2 : $i]: ((?? @ $i @ (^[Y3 : $i]: ((in @ Y3 @ sK4) & ((sK3 @ Y3) = Y2)))) = (in @ Y2 @ Y1)))) => (Y0 = Y1)))))) @ X1) = $false)) )),
% 0.32/1.49    inference(pi_clausification,[status(thm)],[f68])).
% 0.32/1.49  thf(f68,plain,(
% 0.32/1.49    ($false = (?? @ $i @ (^[Y0 : $i]: ((!! @ $i @ (^[Y1 : $i]: ((?? @ $i @ (^[Y2 : $i]: ((in @ Y2 @ sK4) & ((sK3 @ Y2) = Y1)))) = (in @ Y1 @ Y0)))) & (!! @ $i @ (^[Y1 : $i]: ((!! @ $i @ (^[Y2 : $i]: ((?? @ $i @ (^[Y3 : $i]: ((in @ Y3 @ sK4) & ((sK3 @ Y3) = Y2)))) = (in @ Y2 @ Y1)))) => (Y0 = Y1))))))))),
% 0.32/1.49    inference(beta_eta_normalization,[status(thm)],[f67])).
% 0.32/1.49  thf(f67,plain,(
% 0.32/1.49    ($false = ((^[Y0 : $i]: (?? @ $i @ (^[Y1 : $i]: ((!! @ $i @ (^[Y2 : $i]: ((?? @ $i @ (^[Y3 : $i]: ((in @ Y3 @ Y0) & ((sK3 @ Y3) = Y2)))) = (in @ Y2 @ Y1)))) & (!! @ $i @ (^[Y2 : $i]: ((!! @ $i @ (^[Y3 : $i]: ((?? @ $i @ (^[Y4 : $i]: ((in @ Y4 @ Y0) & ((sK3 @ Y4) = Y3)))) = (in @ Y3 @ Y2)))) => (Y1 = Y2)))))))) @ sK4))),
% 0.32/1.49    inference(sigma_clausification,[status(thm)],[f66])).
% 0.32/1.49  thf(f66,plain,(
% 0.32/1.49    ((!! @ $i @ (^[Y0 : $i]: (?? @ $i @ (^[Y1 : $i]: ((!! @ $i @ (^[Y2 : $i]: ((?? @ $i @ (^[Y3 : $i]: ((in @ Y3 @ Y0) & ((sK3 @ Y3) = Y2)))) = (in @ Y2 @ Y1)))) & (!! @ $i @ (^[Y2 : $i]: ((!! @ $i @ (^[Y3 : $i]: ((?? @ $i @ (^[Y4 : $i]: ((in @ Y4 @ Y0) & ((sK3 @ Y4) = Y3)))) = (in @ Y3 @ Y2)))) => (Y1 = Y2))))))))) = $false)),
% 0.32/1.49    inference(beta_eta_normalization,[status(thm)],[f65])).
% 0.32/1.49  thf(f65,plain,(
% 0.32/1.49    (((^[Y0 : $i > $i]: (!! @ $i @ (^[Y1 : $i]: (?? @ $i @ (^[Y2 : $i]: ((!! @ $i @ (^[Y3 : $i]: ((?? @ $i @ (^[Y4 : $i]: ((in @ Y4 @ Y1) & ((Y0 @ Y4) = Y3)))) = (in @ Y3 @ Y2)))) & (!! @ $i @ (^[Y3 : $i]: ((!! @ $i @ (^[Y4 : $i]: ((?? @ $i @ (^[Y5 : $i]: ((in @ Y5 @ Y1) & ((Y0 @ Y5) = Y4)))) = (in @ Y4 @ Y3)))) => (Y2 = Y3)))))))))) @ sK3) = $false)),
% 0.32/1.49    inference(sigma_clausification,[status(thm)],[f48])).
% 0.32/1.49  thf(f48,plain,(
% 0.32/1.49    ($false = (!! @ ($i > $i) @ (^[Y0 : $i > $i]: (!! @ $i @ (^[Y1 : $i]: (?? @ $i @ (^[Y2 : $i]: ((!! @ $i @ (^[Y3 : $i]: ((?? @ $i @ (^[Y4 : $i]: ((in @ Y4 @ Y1) & ((Y0 @ Y4) = Y3)))) = (in @ Y3 @ Y2)))) & (!! @ $i @ (^[Y3 : $i]: ((!! @ $i @ (^[Y4 : $i]: ((?? @ $i @ (^[Y5 : $i]: ((in @ Y5 @ Y1) & ((Y0 @ Y5) = Y4)))) = (in @ Y4 @ Y3)))) => (Y2 = Y3))))))))))))),
% 0.32/1.49    inference(binary_proxy_clausification,[status(thm)],[f32])).
% 0.32/1.49  thf(f62,plain,(
% 0.32/1.49    ( ! [X2 : $i,X3 : $i,X1 : $i > $i] : (((in @ X3 @ (sK2 @ X1 @ X2)) = (?? @ $i @ (^[Y0 : $i]: ((in @ Y0 @ X2) & ((X1 @ Y0) = X3)))))) )),
% 0.32/1.49    inference(binary_proxy_clausification,[status(thm)],[f61])).
% 0.32/1.49  thf(f61,plain,(
% 0.32/1.49    ( ! [X2 : $i,X3 : $i,X1 : $i > $i] : (($true = ((?? @ $i @ (^[Y0 : $i]: ((in @ Y0 @ X2) & ((X1 @ Y0) = X3)))) = (in @ X3 @ (sK2 @ X1 @ X2))))) )),
% 0.32/1.49    inference(beta_eta_normalization,[status(thm)],[f60])).
% 0.32/1.49  thf(f60,plain,(
% 0.32/1.49    ( ! [X2 : $i,X3 : $i,X1 : $i > $i] : (($true = ((^[Y0 : $i]: ((?? @ $i @ (^[Y1 : $i]: ((in @ Y1 @ X2) & ((X1 @ Y1) = Y0)))) = (in @ Y0 @ (sK2 @ X1 @ X2)))) @ X3))) )),
% 0.32/1.49    inference(pi_clausification,[status(thm)],[f59])).
% 0.32/1.49  thf(f175,plain,(
% 0.32/1.49    ($false = ((in @ sK8 @ sK5) => (in @ sK8 @ (sK2 @ sK3 @ sK4)))) | ~spl0_1),
% 0.32/1.49    inference(beta_eta_normalization,[status(thm)],[f172])).
% 0.32/1.49  thf(f172,plain,(
% 0.32/1.49    (((^[Y0 : $i]: ((in @ Y0 @ sK5) => (in @ Y0 @ (sK2 @ sK3 @ sK4)))) @ sK8) = $false) | ~spl0_1),
% 0.32/1.49    inference(sigma_clausification,[status(thm)],[f142])).
% 0.32/1.49  thf(f142,plain,(
% 0.32/1.49    ((!! @ $i @ (^[Y0 : $i]: ((in @ Y0 @ sK5) => (in @ Y0 @ (sK2 @ sK3 @ sK4))))) = $false) | ~spl0_1),
% 0.32/1.49    inference(not_proxy_clausification,[status(thm)],[f138])).
% 0.32/1.49  thf(f138,plain,(
% 0.32/1.49    ($true = (~ (!! @ $i @ (^[Y0 : $i]: ((in @ Y0 @ sK5) => (in @ Y0 @ (sK2 @ sK3 @ sK4))))))) | ~spl0_1),
% 0.32/1.49    inference(boolean_simplification,[status(thm)],[f135])).
% 0.32/1.49  thf(f135,plain,(
% 0.32/1.49    ($true = ((!! @ $i @ (^[Y0 : $i]: ((in @ Y0 @ sK5) => (in @ Y0 @ (sK2 @ sK3 @ sK4))))) => $false)) | ~spl0_1),
% 0.32/1.49    inference(superposition,[status(thm)],[f46,f90])).
% 0.32/1.49  thf(f90,plain,(
% 0.32/1.49    ((subset @ sK5 @ (sK2 @ sK3 @ sK4)) = $false) | ~spl0_1),
% 0.32/1.49    inference(avatar_component_clause,[status(thm)],[f89])).
% 0.32/1.49  thf(f89,definition,(
% 0.32/1.49    spl0_1 <=> ((subset @ sK5 @ (sK2 @ sK3 @ sK4)) = $false)),
% 0.32/1.49    introduced(definition,[new_symbols(naming,[spl0_1])],[avatar_definition])).
% 0.32/1.49  thf(f46,plain,(
% 0.32/1.49    ( ! [X2 : $i,X1 : $i] : (($true = ((!! @ $i @ (^[Y0 : $i]: ((in @ Y0 @ X1) => (in @ Y0 @ X2)))) => (subset @ X1 @ X2)))) )),
% 0.32/1.49    inference(beta_eta_normalization,[status(thm)],[f45])).
% 0.32/1.49  thf(f45,plain,(
% 0.32/1.49    ( ! [X2 : $i,X1 : $i] : (($true = ((^[Y0 : $i]: ((!! @ $i @ (^[Y1 : $i]: ((in @ Y1 @ X1) => (in @ Y1 @ Y0)))) => (subset @ X1 @ Y0))) @ X2))) )),
% 0.32/1.49    inference(pi_clausification,[status(thm)],[f44])).
% 0.32/1.49  thf(f44,plain,(
% 0.32/1.49    ( ! [X1 : $i] : (($true = (!! @ $i @ (^[Y0 : $i]: ((!! @ $i @ (^[Y1 : $i]: ((in @ Y1 @ X1) => (in @ Y1 @ Y0)))) => (subset @ X1 @ Y0)))))) )),
% 0.32/1.49    inference(beta_eta_normalization,[status(thm)],[f43])).
% 0.32/1.49  thf(f43,plain,(
% 0.32/1.49    ( ! [X1 : $i] : (($true = ((^[Y0 : $i]: (!! @ $i @ (^[Y1 : $i]: ((!! @ $i @ (^[Y2 : $i]: ((in @ Y2 @ Y0) => (in @ Y2 @ Y1)))) => (subset @ Y0 @ Y1))))) @ X1))) )),
% 0.32/1.49    inference(pi_clausification,[status(thm)],[f29])).
% 0.32/1.49  thf(f132,plain,(
% 0.32/1.49    ~spl0_2),
% 0.32/1.49    inference(avatar_contradiction_clause,[status(thm)],[f131])).
% 0.32/1.49  thf(f131,plain,(
% 0.32/1.49    $false | ~spl0_2),
% 0.32/1.49    inference(trivial_inequality_removal,[status(thm)],[f130])).
% 0.32/1.49  thf(f130,plain,(
% 0.32/1.49    ($true = $false) | ~spl0_2),
% 0.32/1.49    inference(boolean_simplification,[status(thm)],[f129])).
% 0.32/1.49  thf(f129,plain,(
% 0.32/1.49    (((in @ sK7 @ sK5) => (in @ sK7 @ sK5)) = $false) | ~spl0_2),
% 0.32/1.49    inference(forward_demodulation,[status(thm)],[f128,f108])).
% 0.32/1.49  thf(f128,plain,(
% 0.32/1.49    ($false = ((in @ sK7 @ (sK2 @ sK3 @ sK4)) => (in @ sK7 @ sK5))) | ~spl0_2),
% 0.32/1.49    inference(beta_eta_normalization,[status(thm)],[f125])).
% 0.32/1.49  thf(f125,plain,(
% 0.32/1.49    (((^[Y0 : $i]: ((in @ Y0 @ (sK2 @ sK3 @ sK4)) => (in @ Y0 @ sK5))) @ sK7) = $false) | ~spl0_2),
% 0.32/1.49    inference(sigma_clausification,[status(thm)],[f118])).
% 0.32/1.49  thf(f118,plain,(
% 0.32/1.49    ($false = (!! @ $i @ (^[Y0 : $i]: ((in @ Y0 @ (sK2 @ sK3 @ sK4)) => (in @ Y0 @ sK5))))) | ~spl0_2),
% 0.32/1.49    inference(not_proxy_clausification,[status(thm)],[f112])).
% 0.32/1.49  thf(f112,plain,(
% 0.32/1.49    ($true = (~ (!! @ $i @ (^[Y0 : $i]: ((in @ Y0 @ (sK2 @ sK3 @ sK4)) => (in @ Y0 @ sK5)))))) | ~spl0_2),
% 0.32/1.49    inference(boolean_simplification,[status(thm)],[f109])).
% 0.32/1.49  thf(f109,plain,(
% 0.32/1.49    (((!! @ $i @ (^[Y0 : $i]: ((in @ Y0 @ (sK2 @ sK3 @ sK4)) => (in @ Y0 @ sK5)))) => $false) = $true) | ~spl0_2),
% 0.32/1.49    inference(superposition,[status(thm)],[f46,f102])).
% 0.32/1.49  thf(f102,plain,(
% 0.32/1.49    ($false = (subset @ (sK2 @ sK3 @ sK4) @ sK5)) | ~spl0_2),
% 0.32/1.49    inference(not_proxy_clausification,[status(thm)],[f93])).
% 0.32/1.49  thf(f93,plain,(
% 0.32/1.49    ($true = (~ (subset @ (sK2 @ sK3 @ sK4) @ sK5))) | ~spl0_2),
% 0.32/1.49    inference(avatar_component_clause,[status(thm)],[f92])).
% 0.32/1.49  thf(f92,definition,(
% 0.32/1.49    spl0_2 <=> ($true = (~ (subset @ (sK2 @ sK3 @ sK4) @ sK5)))),
% 0.32/1.49    introduced(definition,[new_symbols(naming,[spl0_2])],[avatar_definition])).
% 0.32/1.49  thf(f94,plain,(
% 0.32/1.49    spl0_1 | spl0_2),
% 0.32/1.49    inference(avatar_split_clause,[status(thm)],[f87,f92,f89])).
% 0.32/1.49  thf(f87,plain,(
% 0.32/1.49    ((subset @ sK5 @ (sK2 @ sK3 @ sK4)) = $false) | ($true = (~ (subset @ (sK2 @ sK3 @ sK4) @ sK5)))),
% 0.32/1.49    inference(binary_proxy_clausification,[status(thm)],[f86])).
% 0.32/1.49  thf(f86,plain,(
% 0.32/1.49    ($true = ((subset @ sK5 @ (sK2 @ sK3 @ sK4)) => (~ (subset @ (sK2 @ sK3 @ sK4) @ sK5))))),
% 0.32/1.49    inference(boolean_simplification,[status(thm)],[f85])).
% 0.32/1.49  thf(f85,plain,(
% 0.32/1.49    ($true = ((subset @ sK5 @ (sK2 @ sK3 @ sK4)) => ((subset @ (sK2 @ sK3 @ sK4) @ sK5) => $false)))),
% 0.32/1.49    inference(superposition,[status(thm)],[f41,f78])).
% 0.32/1.49  thf(f78,plain,(
% 0.32/1.49    ($false = ((sK2 @ sK3 @ sK4) = sK5))),
% 0.32/1.49    inference(binary_proxy_clausification,[status(thm)],[f77])).
% 0.32/1.49  thf(f41,plain,(
% 0.32/1.49    ( ! [X2 : $i,X1 : $i] : (($true = ((subset @ X1 @ X2) => ((subset @ X2 @ X1) => (X2 = X1))))) )),
% 0.32/1.49    inference(beta_eta_normalization,[status(thm)],[f40])).
% 0.32/1.49  thf(f40,plain,(
% 0.32/1.49    ( ! [X2 : $i,X1 : $i] : ((((^[Y0 : $i]: ((subset @ X1 @ Y0) => ((subset @ Y0 @ X1) => (Y0 = X1)))) @ X2) = $true)) )),
% 0.32/1.49    inference(pi_clausification,[status(thm)],[f39])).
% 0.32/1.49  thf(f39,plain,(
% 0.32/1.49    ( ! [X1 : $i] : (($true = (!! @ $i @ (^[Y0 : $i]: ((subset @ X1 @ Y0) => ((subset @ Y0 @ X1) => (Y0 = X1))))))) )),
% 0.32/1.49    inference(beta_eta_normalization,[status(thm)],[f38])).
% 0.32/1.49  thf(f38,plain,(
% 0.32/1.49    ( ! [X1 : $i] : ((((^[Y0 : $i]: (!! @ $i @ (^[Y1 : $i]: ((subset @ Y0 @ Y1) => ((subset @ Y1 @ Y0) => (Y1 = Y0)))))) @ X1) = $true)) )),
% 0.32/1.49    inference(pi_clausification,[status(thm)],[f33])).
% 0.32/1.49  thf(f33,plain,(
% 0.32/1.49    ((!! @ $i @ (^[Y0 : $i]: (!! @ $i @ (^[Y1 : $i]: ((subset @ Y0 @ Y1) => ((subset @ Y1 @ Y0) => (Y1 = Y0))))))) = $true)),
% 0.32/1.49    inference(binary_proxy_clausification,[status(thm)],[f31])).
% 0.32/1.49  % SZS output end Proof for DTF2THF_26351
% 0.32/1.49  % (26459)------------------------------
% 0.32/1.49  % (26459)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 0.32/1.49  % (26459)Termination reason: Refutation
% 0.32/1.49  
% 0.32/1.49  % (26459)Memory used [KB]: 5756
% 0.32/1.49  % (26459)Time elapsed: 0.027 s
% 0.32/1.49  % (26459)Instructions burned: 42 (million)
% 0.32/1.49  % (26459)------------------------------
% 0.32/1.49  % (26459)------------------------------
% 0.32/1.49  % (26447)Success in time 0.066 s
%------------------------------------------------------------------------------