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%------------------------------------------------------------------------------
% File     : DT2H2X---1.9.5
% Problem  : SEU861^5 : TPTP v9.2.1. Released v4.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : /export/starexec/sandbox/solver/bin/run_DT2H2X /export/starexec/sandbox/benchmark/theBenchmark.p 300

% Computer : n011.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 09:37:36 AM UTC 2026

% Result   : Theorem 1.57s 1.38s
% Output   : Refutation 1.57s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   32
%            Number of leaves      :    3
% Syntax   : Number of formulae    :   79 (  32 unt;   0 typ;   2 def)
%            Number of atoms       :  622 ( 127 equ;   0 cnn)
%            Maximal formula atoms :    6 (   7 avg)
%            Number of connectives : 1289 (  75   ~;  98   |;  82   &; 681   @)
%                                         (   2 <=>; 171  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   16 (   3 avg)
%            Number of types       :    2 (   1 usr)
%            Number of type conns  :  243 ( 243   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   18 (  13 usr;   9 con; 0-2 aty)
%                                         ( 162  !!;  18  ??;   0 @@+;   0 @@-)
%            Number of variables   :  253 ( 177   ^;  70   !;   6   ?; 253   :)

% Comments : 
%------------------------------------------------------------------------------
thf(type_def_5,type,
    a: $tType ).

thf(func_def_0,type,
    a: $tType ).

thf(func_def_1,type,
    cB: a > $o ).

thf(func_def_2,type,
    cC: a > $o ).

thf(func_def_19,type,
    ph1: 
      !>[X0: $tType] : X0 ).

thf(func_def_20,type,
    sK2: ( a > $o ) > $o ).

thf(func_def_21,type,
    sK3: a ).

thf(func_def_22,type,
    sK4: a > a ).

thf(func_def_23,type,
    sK5: a > $o ).

thf(func_def_24,type,
    sK6: a ).

thf(func_def_25,type,
    sK7: a > $o ).

thf(func_def_26,type,
    sK8: a ).

thf(func_def_27,type,
    sK9: a > $o ).

thf(f187,plain,
    $false,
    inference(avatar_sat_refutation,[status(thm)],[f72,f129,f186]) ).

thf(f186,plain,
    ~ spl0_1,
    inference(avatar_contradiction_clause,[status(thm)],[f185]) ).

thf(f185,plain,
    ( $false
    | ~ spl0_1 ),
    inference(trivial_inequality_removal,[status(thm)],[f184]) ).

thf(f184,plain,
    ( ( $false = $true )
    | ~ spl0_1 ),
    inference(forward_demodulation,[status(thm)],[f183,f144]) ).

thf(f144,plain,
    ( ( $false
      = ( sK2 @ sK5 ) )
    | ~ spl0_1 ),
    inference(boolean_simplification,[status(thm)],[f143]) ).

thf(f143,plain,
    ( ( ( $true
       => ( sK2 @ sK5 ) )
      = $false )
    | ~ spl0_1 ),
    inference(backward_demodulation,[status(thm)],[f140,f142]) ).

thf(f142,plain,
    ( ( ( ( sK2 @ sK7 )
        & ( !! @ a
          @ ^ [Y0: a] :
              ( ( sK5 @ Y0 )
             => ( ( sK6 = Y0 )
                | ( sK7 @ Y0 ) ) ) ) )
      = $true )
    | ~ spl0_1 ),
    inference(binary_proxy_clausification,[status(thm)],[f140]) ).

thf(f140,plain,
    ( ( $false
      = ( ( ( sK2 @ sK7 )
          & ( !! @ a
            @ ^ [Y0: a] :
                ( ( sK5 @ Y0 )
               => ( ( sK6 = Y0 )
                  | ( sK7 @ Y0 ) ) ) ) )
       => ( sK2 @ sK5 ) ) )
    | ~ spl0_1 ),
    inference(beta_eta_normalization,[status(thm)],[f139]) ).

thf(f139,plain,
    ( ( $false
      = ( ^ [Y0: a > $o] :
            ( ( ( sK2 @ Y0 )
              & ( !! @ a
                @ ^ [Y1: a] :
                    ( ( sK5 @ Y1 )
                   => ( ( sK6 = Y1 )
                      | ( Y0 @ Y1 ) ) ) ) )
           => ( sK2 @ sK5 ) )
        @ sK7 ) )
    | ~ spl0_1 ),
    inference(sigma_clausification,[status(thm)],[f138]) ).

thf(f138,plain,
    ( ( $false
      = ( !! @ ( a > $o )
        @ ^ [Y0: a > $o] :
            ( ( ( sK2 @ Y0 )
              & ( !! @ a
                @ ^ [Y1: a] :
                    ( ( sK5 @ Y1 )
                   => ( ( sK6 = Y1 )
                      | ( Y0 @ Y1 ) ) ) ) )
           => ( sK2 @ sK5 ) ) ) )
    | ~ spl0_1 ),
    inference(beta_eta_normalization,[status(thm)],[f137]) ).

thf(f137,plain,
    ( ( ( ^ [Y0: a] :
            ( !! @ ( a > $o )
            @ ^ [Y1: a > $o] :
                ( ( ( sK2 @ Y1 )
                  & ( !! @ a
                    @ ^ [Y2: a] :
                        ( ( sK5 @ Y2 )
                       => ( ( Y0 = Y2 )
                          | ( Y1 @ Y2 ) ) ) ) )
               => ( sK2 @ sK5 ) ) )
        @ sK6 )
      = $false )
    | ~ spl0_1 ),
    inference(sigma_clausification,[status(thm)],[f134]) ).

thf(f134,plain,
    ( ( $false
      = ( !! @ a
        @ ^ [Y0: a] :
            ( !! @ ( a > $o )
            @ ^ [Y1: a > $o] :
                ( ( ( sK2 @ Y1 )
                  & ( !! @ a
                    @ ^ [Y2: a] :
                        ( ( sK5 @ Y2 )
                       => ( ( Y0 = Y2 )
                          | ( Y1 @ Y2 ) ) ) ) )
               => ( sK2 @ sK5 ) ) ) ) )
    | ~ spl0_1 ),
    inference(beta_eta_normalization,[status(thm)],[f132]) ).

thf(f132,plain,
    ( ( $false
      = ( ^ [Y0: a > $o] :
            ( !! @ a
            @ ^ [Y1: a] :
                ( !! @ ( a > $o )
                @ ^ [Y2: a > $o] :
                    ( ( ( sK2 @ Y2 )
                      & ( !! @ a
                        @ ^ [Y3: a] :
                            ( ( Y0 @ Y3 )
                           => ( ( Y1 = Y3 )
                              | ( Y2 @ Y3 ) ) ) ) )
                   => ( sK2 @ Y0 ) ) ) )
        @ sK5 ) )
    | ~ spl0_1 ),
    inference(sigma_clausification,[status(thm)],[f68]) ).

thf(f68,plain,
    ( ( ( !! @ ( a > $o )
        @ ^ [Y0: a > $o] :
            ( !! @ a
            @ ^ [Y1: a] :
                ( !! @ ( a > $o )
                @ ^ [Y2: a > $o] :
                    ( ( ( sK2 @ Y2 )
                      & ( !! @ a
                        @ ^ [Y3: a] :
                            ( ( Y0 @ Y3 )
                           => ( ( Y1 = Y3 )
                              | ( Y2 @ Y3 ) ) ) ) )
                   => ( sK2 @ Y0 ) ) ) ) )
      = $false )
    | ~ spl0_1 ),
    inference(avatar_component_clause,[status(thm)],[f67]) ).

thf(f67,definition,
    ( spl0_1
  <=> ( ( !! @ ( a > $o )
        @ ^ [Y0: a > $o] :
            ( !! @ a
            @ ^ [Y1: a] :
                ( !! @ ( a > $o )
                @ ^ [Y2: a > $o] :
                    ( ( ( sK2 @ Y2 )
                      & ( !! @ a
                        @ ^ [Y3: a] :
                            ( ( Y0 @ Y3 )
                           => ( ( Y1 = Y3 )
                              | ( Y2 @ Y3 ) ) ) ) )
                   => ( sK2 @ Y0 ) ) ) ) )
      = $false ) ),
    introduced(definition,[new_symbols(naming,[spl0_1])],[avatar_definition]) ).

thf(f183,plain,
    ( ( $true
      = ( sK2 @ sK5 ) )
    | ~ spl0_1 ),
    inference(boolean_simplification,[status(thm)],[f182]) ).

thf(f182,plain,
    ( ( ( $true
       => ( sK2 @ sK5 ) )
      = $true )
    | ~ spl0_1 ),
    inference(forward_demodulation,[status(thm)],[f181,f169]) ).

thf(f169,plain,
    ( ( ( sK2 @ sK9 )
      = $true )
    | ~ spl0_1 ),
    inference(boolean_simplification,[status(thm)],[f168]) ).

thf(f168,plain,
    ( ( ( ( sK2 @ sK9 )
        & $true )
      = $true )
    | ~ spl0_1 ),
    inference(backward_demodulation,[status(thm)],[f163,f166]) ).

thf(f166,plain,
    ( ( ( !! @ a
        @ ^ [Y0: a] :
            ( ( sK5 @ Y0 )
           => ( ( sK6 = Y0 )
              | ( sK9 @ Y0 ) ) ) )
      = $true )
    | ~ spl0_1 ),
    inference(binary_proxy_clausification,[status(thm)],[f163]) ).

thf(f163,plain,
    ( ( $true
      = ( ( sK2 @ sK9 )
        & ( !! @ a
          @ ^ [Y0: a] :
              ( ( sK5 @ Y0 )
             => ( ( sK6 = Y0 )
                | ( sK9 @ Y0 ) ) ) ) ) )
    | ~ spl0_1 ),
    inference(not_proxy_clausification,[status(thm)],[f162]) ).

thf(f162,plain,
    ( ( $false
      = ( ~ ( ( sK2 @ sK9 )
            & ( !! @ a
              @ ^ [Y0: a] :
                  ( ( sK5 @ Y0 )
                 => ( ( sK6 = Y0 )
                    | ( sK9 @ Y0 ) ) ) ) ) ) )
    | ~ spl0_1 ),
    inference(beta_eta_normalization,[status(thm)],[f161]) ).

thf(f161,plain,
    ( ( $false
      = ( ^ [Y0: a > $o] :
            ~ ( ( sK2 @ Y0 )
              & ( !! @ a
                @ ^ [Y1: a] :
                    ( ( sK5 @ Y1 )
                   => ( ( sK6 = Y1 )
                      | ( Y0 @ Y1 ) ) ) ) )
        @ sK9 ) )
    | ~ spl0_1 ),
    inference(sigma_clausification,[status(thm)],[f146]) ).

thf(f146,plain,
    ( ( $false
      = ( !! @ ( a > $o )
        @ ^ [Y0: a > $o] :
            ~ ( ( sK2 @ Y0 )
              & ( !! @ a
                @ ^ [Y1: a] :
                    ( ( sK5 @ Y1 )
                   => ( ( sK6 = Y1 )
                      | ( Y0 @ Y1 ) ) ) ) ) ) )
    | ~ spl0_1 ),
    inference(boolean_simplification,[status(thm)],[f145]) ).

thf(f145,plain,
    ( ( $false
      = ( !! @ ( a > $o )
        @ ^ [Y0: a > $o] :
            ( ( ( sK2 @ Y0 )
              & ( !! @ a
                @ ^ [Y1: a] :
                    ( ( sK5 @ Y1 )
                   => ( ( sK6 = Y1 )
                      | ( Y0 @ Y1 ) ) ) ) )
           => $false ) ) )
    | ~ spl0_1 ),
    inference(backward_demodulation,[status(thm)],[f138,f144]) ).

thf(f181,plain,
    ( ( ( ( sK2 @ sK9 )
       => ( sK2 @ sK5 ) )
      = $true )
    | ~ spl0_1 ),
    inference(boolean_simplification,[status(thm)],[f179]) ).

thf(f179,plain,
    ( ( ( ( $true
          & ( sK2 @ sK9 ) )
       => ( sK2 @ sK5 ) )
      = $true )
    | ~ spl0_1 ),
    inference(superposition,[status(thm)],[f58,f166]) ).

thf(f58,plain,
    ! [X2: a > $o,X3: a > $o,X1: a] :
      ( $true
      = ( ( ( !! @ a
            @ ^ [Y0: a] :
                ( ( X3 @ Y0 )
               => ( ( X1 = Y0 )
                  | ( X2 @ Y0 ) ) ) )
          & ( sK2 @ X2 ) )
       => ( sK2 @ X3 ) ) ),
    inference(beta_eta_normalization,[status(thm)],[f57]) ).

thf(f57,plain,
    ! [X2: a > $o,X3: a > $o,X1: a] :
      ( ( ^ [Y0: a > $o] :
            ( ( ( !! @ a
                @ ^ [Y1: a] :
                    ( ( Y0 @ Y1 )
                   => ( ( X1 = Y1 )
                      | ( X2 @ Y1 ) ) ) )
              & ( sK2 @ X2 ) )
           => ( sK2 @ Y0 ) )
        @ X3 )
      = $true ),
    inference(pi_clausification,[status(thm)],[f56]) ).

thf(f56,plain,
    ! [X2: a > $o,X1: a] :
      ( ( !! @ ( a > $o )
        @ ^ [Y0: a > $o] :
            ( ( ( !! @ a
                @ ^ [Y1: a] :
                    ( ( Y0 @ Y1 )
                   => ( ( X1 = Y1 )
                      | ( X2 @ Y1 ) ) ) )
              & ( sK2 @ X2 ) )
           => ( sK2 @ Y0 ) ) )
      = $true ),
    inference(beta_eta_normalization,[status(thm)],[f55]) ).

thf(f55,plain,
    ! [X2: a > $o,X1: a] :
      ( ( ^ [Y0: a > $o] :
            ( !! @ ( a > $o )
            @ ^ [Y1: a > $o] :
                ( ( ( !! @ a
                    @ ^ [Y2: a] :
                        ( ( Y1 @ Y2 )
                       => ( ( X1 = Y2 )
                          | ( Y0 @ Y2 ) ) ) )
                  & ( sK2 @ Y0 ) )
               => ( sK2 @ Y1 ) ) )
        @ X2 )
      = $true ),
    inference(pi_clausification,[status(thm)],[f54]) ).

thf(f54,plain,
    ! [X1: a] :
      ( ( !! @ ( a > $o )
        @ ^ [Y0: a > $o] :
            ( !! @ ( a > $o )
            @ ^ [Y1: a > $o] :
                ( ( ( !! @ a
                    @ ^ [Y2: a] :
                        ( ( Y1 @ Y2 )
                       => ( ( X1 = Y2 )
                          | ( Y0 @ Y2 ) ) ) )
                  & ( sK2 @ Y0 ) )
               => ( sK2 @ Y1 ) ) ) )
      = $true ),
    inference(beta_eta_normalization,[status(thm)],[f53]) ).

thf(f53,plain,
    ! [X1: a] :
      ( $true
      = ( ^ [Y0: a] :
            ( !! @ ( a > $o )
            @ ^ [Y1: a > $o] :
                ( !! @ ( a > $o )
                @ ^ [Y2: a > $o] :
                    ( ( ( !! @ a
                        @ ^ [Y3: a] :
                            ( ( Y2 @ Y3 )
                           => ( ( Y0 = Y3 )
                              | ( Y1 @ Y3 ) ) ) )
                      & ( sK2 @ Y1 ) )
                   => ( sK2 @ Y2 ) ) ) )
        @ X1 ) ),
    inference(pi_clausification,[status(thm)],[f24]) ).

thf(f24,plain,
    ( ( !! @ a
      @ ^ [Y0: a] :
          ( !! @ ( a > $o )
          @ ^ [Y1: a > $o] :
              ( !! @ ( a > $o )
              @ ^ [Y2: a > $o] :
                  ( ( ( !! @ a
                      @ ^ [Y3: a] :
                          ( ( Y2 @ Y3 )
                         => ( ( Y0 = Y3 )
                            | ( Y1 @ Y3 ) ) ) )
                    & ( sK2 @ Y1 ) )
                 => ( sK2 @ Y2 ) ) ) ) )
    = $true ),
    inference(binary_proxy_clausification,[status(thm)],[f20]) ).

thf(f20,plain,
    ( ( ( !! @ a
        @ ^ [Y0: a] :
            ( !! @ ( a > $o )
            @ ^ [Y1: a > $o] :
                ( !! @ ( a > $o )
                @ ^ [Y2: a > $o] :
                    ( ( ( !! @ a
                        @ ^ [Y3: a] :
                            ( ( Y2 @ Y3 )
                           => ( ( Y0 = Y3 )
                              | ( Y1 @ Y3 ) ) ) )
                      & ( sK2 @ Y1 ) )
                   => ( sK2 @ Y2 ) ) ) ) )
      & ( !! @ ( a > $o )
        @ ^ [Y0: a > $o] :
            ( ~ ( ?? @ a @ Y0 )
           => ( sK2 @ Y0 ) ) ) )
    = $true ),
    inference(binary_proxy_clausification,[status(thm)],[f18]) ).

thf(f18,plain,
    ( $false
    = ( ( ( !! @ a
          @ ^ [Y0: a] :
              ( !! @ ( a > $o )
              @ ^ [Y1: a > $o] :
                  ( !! @ ( a > $o )
                  @ ^ [Y2: a > $o] :
                      ( ( ( !! @ a
                          @ ^ [Y3: a] :
                              ( ( Y2 @ Y3 )
                             => ( ( Y0 = Y3 )
                                | ( Y1 @ Y3 ) ) ) )
                        & ( sK2 @ Y1 ) )
                     => ( sK2 @ Y2 ) ) ) ) )
        & ( !! @ ( a > $o )
          @ ^ [Y0: a > $o] :
              ( ~ ( ?? @ a @ Y0 )
             => ( sK2 @ Y0 ) ) ) )
     => ( sK2 @ cB ) ) ),
    inference(beta_eta_normalization,[status(thm)],[f17]) ).

thf(f17,plain,
    ( ( ^ [Y0: ( a > $o ) > $o] :
          ( ( ( !! @ a
              @ ^ [Y1: a] :
                  ( !! @ ( a > $o )
                  @ ^ [Y2: a > $o] :
                      ( !! @ ( a > $o )
                      @ ^ [Y3: a > $o] :
                          ( ( ( !! @ a
                              @ ^ [Y4: a] :
                                  ( ( Y3 @ Y4 )
                                 => ( ( Y1 = Y4 )
                                    | ( Y2 @ Y4 ) ) ) )
                            & ( Y0 @ Y2 ) )
                         => ( Y0 @ Y3 ) ) ) ) )
            & ( !! @ ( a > $o )
              @ ^ [Y1: a > $o] :
                  ( ~ ( ?? @ a @ Y1 )
                 => ( Y0 @ Y1 ) ) ) )
         => ( Y0 @ cB ) )
      @ sK2 )
    = $false ),
    inference(sigma_clausification,[status(thm)],[f11]) ).

thf(f11,plain,
    ( $false
    = ( !! @ ( ( a > $o ) > $o )
      @ ^ [Y0: ( a > $o ) > $o] :
          ( ( ( !! @ a
              @ ^ [Y1: a] :
                  ( !! @ ( a > $o )
                  @ ^ [Y2: a > $o] :
                      ( !! @ ( a > $o )
                      @ ^ [Y3: a > $o] :
                          ( ( ( !! @ a
                              @ ^ [Y4: a] :
                                  ( ( Y3 @ Y4 )
                                 => ( ( Y1 = Y4 )
                                    | ( Y2 @ Y4 ) ) ) )
                            & ( Y0 @ Y2 ) )
                         => ( Y0 @ Y3 ) ) ) ) )
            & ( !! @ ( a > $o )
              @ ^ [Y1: a > $o] :
                  ( ~ ( ?? @ a @ Y1 )
                 => ( Y0 @ Y1 ) ) ) )
         => ( Y0 @ cB ) ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f8]) ).

thf(f8,plain,
    ( $false
    = ( ( ( !! @ a
          @ ^ [Y0: a] :
              ( ( cB @ Y0 )
             => ( cC @ Y0 ) ) )
        & ( !! @ ( ( a > $o ) > $o )
          @ ^ [Y0: ( a > $o ) > $o] :
              ( ( ( !! @ ( a > $o )
                  @ ^ [Y1: a > $o] :
                      ( ~ ( ?? @ a @ Y1 )
                     => ( Y0 @ Y1 ) ) )
                & ( !! @ ( a > $o )
                  @ ^ [Y1: a > $o] :
                      ( !! @ a
                      @ ^ [Y2: a] :
                          ( !! @ ( a > $o )
                          @ ^ [Y3: a > $o] :
                              ( ( ( Y0 @ Y3 )
                                & ( !! @ a
                                  @ ^ [Y4: a] :
                                      ( ( Y1 @ Y4 )
                                     => ( ( Y2 = Y4 )
                                        | ( Y3 @ Y4 ) ) ) ) )
                             => ( Y0 @ Y1 ) ) ) ) ) )
             => ( Y0 @ cC ) ) ) )
     => ( !! @ ( ( a > $o ) > $o )
        @ ^ [Y0: ( a > $o ) > $o] :
            ( ( ( !! @ a
                @ ^ [Y1: a] :
                    ( !! @ ( a > $o )
                    @ ^ [Y2: a > $o] :
                        ( !! @ ( a > $o )
                        @ ^ [Y3: a > $o] :
                            ( ( ( !! @ a
                                @ ^ [Y4: a] :
                                    ( ( Y3 @ Y4 )
                                   => ( ( Y1 = Y4 )
                                      | ( Y2 @ Y4 ) ) ) )
                              & ( Y0 @ Y2 ) )
                           => ( Y0 @ Y3 ) ) ) ) )
              & ( !! @ ( a > $o )
                @ ^ [Y1: a > $o] :
                    ( ~ ( ?? @ a @ Y1 )
                   => ( Y0 @ Y1 ) ) ) )
           => ( Y0 @ cB ) ) ) ) ),
    inference(not_proxy_clausification,[status(thm)],[f7]) ).

thf(f7,plain,
    ( $true
    = ( ~ ( ( ( !! @ a
              @ ^ [Y0: a] :
                  ( ( cB @ Y0 )
                 => ( cC @ Y0 ) ) )
            & ( !! @ ( ( a > $o ) > $o )
              @ ^ [Y0: ( a > $o ) > $o] :
                  ( ( ( !! @ ( a > $o )
                      @ ^ [Y1: a > $o] :
                          ( ~ ( ?? @ a @ Y1 )
                         => ( Y0 @ Y1 ) ) )
                    & ( !! @ ( a > $o )
                      @ ^ [Y1: a > $o] :
                          ( !! @ a
                          @ ^ [Y2: a] :
                              ( !! @ ( a > $o )
                              @ ^ [Y3: a > $o] :
                                  ( ( ( Y0 @ Y3 )
                                    & ( !! @ a
                                      @ ^ [Y4: a] :
                                          ( ( Y1 @ Y4 )
                                         => ( ( Y2 = Y4 )
                                            | ( Y3 @ Y4 ) ) ) ) )
                                 => ( Y0 @ Y1 ) ) ) ) ) )
                 => ( Y0 @ cC ) ) ) )
         => ( !! @ ( ( a > $o ) > $o )
            @ ^ [Y0: ( a > $o ) > $o] :
                ( ( ( !! @ a
                    @ ^ [Y1: a] :
                        ( !! @ ( a > $o )
                        @ ^ [Y2: a > $o] :
                            ( !! @ ( a > $o )
                            @ ^ [Y3: a > $o] :
                                ( ( ( !! @ a
                                    @ ^ [Y4: a] :
                                        ( ( Y3 @ Y4 )
                                       => ( ( Y1 = Y4 )
                                          | ( Y2 @ Y4 ) ) ) )
                                  & ( Y0 @ Y2 ) )
                               => ( Y0 @ Y3 ) ) ) ) )
                  & ( !! @ ( a > $o )
                    @ ^ [Y1: a > $o] :
                        ( ~ ( ?? @ a @ Y1 )
                       => ( Y0 @ Y1 ) ) ) )
               => ( Y0 @ cB ) ) ) ) ) ),
    inference(beta_eta_normalization,[status(thm)],[f6]) ).

thf(f6,plain,
    ( ( ~ ( ( ( !! @ a
              @ ^ [Y0: a] :
                  ( ( cB @ Y0 )
                 => ( cC @ Y0 ) ) )
            & ( !! @ ( ( a > $o ) > $o )
              @ ^ [Y0: ( a > $o ) > $o] :
                  ( ( ( !! @ ( a > $o )
                      @ ^ [Y1: a > $o] :
                          ( ~ ( ?? @ a
                              @ ^ [Y2: a] : ( Y1 @ Y2 ) )
                         => ( Y0 @ Y1 ) ) )
                    & ( !! @ ( a > $o )
                      @ ^ [Y1: a > $o] :
                          ( !! @ a
                          @ ^ [Y2: a] :
                              ( !! @ ( a > $o )
                              @ ^ [Y3: a > $o] :
                                  ( ( ( Y0 @ Y3 )
                                    & ( !! @ a
                                      @ ^ [Y4: a] :
                                          ( ( Y1 @ Y4 )
                                         => ( ( Y2 = Y4 )
                                            | ( Y3 @ Y4 ) ) ) ) )
                                 => ( Y0 @ Y1 ) ) ) ) ) )
                 => ( Y0 @ cC ) ) ) )
         => ( !! @ ( ( a > $o ) > $o )
            @ ^ [Y0: ( a > $o ) > $o] :
                ( ( ( !! @ a
                    @ ^ [Y1: a] :
                        ( !! @ ( a > $o )
                        @ ^ [Y2: a > $o] :
                            ( !! @ ( a > $o )
                            @ ^ [Y3: a > $o] :
                                ( ( ( !! @ a
                                    @ ^ [Y4: a] :
                                        ( ( Y3 @ Y4 )
                                       => ( ( Y1 = Y4 )
                                          | ( Y2 @ Y4 ) ) ) )
                                  & ( Y0 @ Y2 ) )
                               => ( Y0 @ Y3 ) ) ) ) )
                  & ( !! @ ( a > $o )
                    @ ^ [Y1: a > $o] :
                        ( ~ ( ?? @ a
                            @ ^ [Y2: a] : ( Y1 @ Y2 ) )
                       => ( Y0 @ Y1 ) ) ) )
               => ( Y0 @ cB ) ) ) ) )
    = $true ),
    inference(cnf_transformation,[status(thm)],[f5]) ).

thf(f5,plain,
    ( ( ~ ( ( ( !! @ a
              @ ^ [Y0: a] :
                  ( ( cB @ Y0 )
                 => ( cC @ Y0 ) ) )
            & ( !! @ ( ( a > $o ) > $o )
              @ ^ [Y0: ( a > $o ) > $o] :
                  ( ( ( !! @ ( a > $o )
                      @ ^ [Y1: a > $o] :
                          ( ~ ( ?? @ a
                              @ ^ [Y2: a] : ( Y1 @ Y2 ) )
                         => ( Y0 @ Y1 ) ) )
                    & ( !! @ ( a > $o )
                      @ ^ [Y1: a > $o] :
                          ( !! @ a
                          @ ^ [Y2: a] :
                              ( !! @ ( a > $o )
                              @ ^ [Y3: a > $o] :
                                  ( ( ( Y0 @ Y3 )
                                    & ( !! @ a
                                      @ ^ [Y4: a] :
                                          ( ( Y1 @ Y4 )
                                         => ( ( Y2 = Y4 )
                                            | ( Y3 @ Y4 ) ) ) ) )
                                 => ( Y0 @ Y1 ) ) ) ) ) )
                 => ( Y0 @ cC ) ) ) )
         => ( !! @ ( ( a > $o ) > $o )
            @ ^ [Y0: ( a > $o ) > $o] :
                ( ( ( !! @ a
                    @ ^ [Y1: a] :
                        ( !! @ ( a > $o )
                        @ ^ [Y2: a > $o] :
                            ( !! @ ( a > $o )
                            @ ^ [Y3: a > $o] :
                                ( ( ( !! @ a
                                    @ ^ [Y4: a] :
                                        ( ( Y3 @ Y4 )
                                       => ( ( Y1 = Y4 )
                                          | ( Y2 @ Y4 ) ) ) )
                                  & ( Y0 @ Y2 ) )
                               => ( Y0 @ Y3 ) ) ) ) )
                  & ( !! @ ( a > $o )
                    @ ^ [Y1: a > $o] :
                        ( ~ ( ?? @ a
                            @ ^ [Y2: a] : ( Y1 @ Y2 ) )
                       => ( Y0 @ Y1 ) ) ) )
               => ( Y0 @ cB ) ) ) ) )
    = $true ),
    inference(fool_elimination,[status(thm)],[f4]) ).

thf(f4,plain,
    ~ ( ( ! [X0: ( a > $o ) > $o] :
            ( ( ! [X1: a > $o,X2: a,X3: a > $o] :
                  ( ( ! [X4: a] :
                        ( ( X3 @ X4 )
                       => ( ( X1 @ X4 )
                          | ( X2 = X4 ) ) )
                    & ( X0 @ X1 ) )
                 => ( X0 @ X3 ) )
              & ! [X5: a > $o] :
                  ( ~ ? [X6: a] : ( X5 @ X6 )
                 => ( X0 @ X5 ) ) )
           => ( X0 @ cC ) )
        & ! [X7: a] :
            ( ( cB @ X7 )
           => ( cC @ X7 ) ) )
     => ! [X8: ( a > $o ) > $o] :
          ( ( ! [X9: a > $o] :
                ( ~ ? [X10: a] : ( X9 @ X10 )
               => ( X8 @ X9 ) )
            & ! [X11: a > $o,X12: a > $o,X13: a] :
                ( ( ( X8 @ X12 )
                  & ! [X14: a] :
                      ( ( X11 @ X14 )
                     => ( ( X12 @ X14 )
                        | ( X13 = X14 ) ) ) )
               => ( X8 @ X11 ) ) )
         => ( X8 @ cB ) ) ),
    inference(rectify,[status(thm)],[f2]) ).

thf(f2,negated_conjecture,
    ~ ( ( ! [X0: ( a > $o ) > $o] :
            ( ( ! [X3: a > $o,X4: a,X5: a > $o] :
                  ( ( ! [X6: a] :
                        ( ( X5 @ X6 )
                       => ( ( X3 @ X6 )
                          | ( X4 = X6 ) ) )
                    & ( X0 @ X3 ) )
                 => ( X0 @ X5 ) )
              & ! [X1: a > $o] :
                  ( ~ ? [X2: a] : ( X1 @ X2 )
                 => ( X0 @ X1 ) ) )
           => ( X0 @ cC ) )
        & ! [X4: a] :
            ( ( cB @ X4 )
           => ( cC @ X4 ) ) )
     => ! [X0: ( a > $o ) > $o] :
          ( ( ! [X1: a > $o] :
                ( ~ ? [X2: a] : ( X1 @ X2 )
               => ( X0 @ X1 ) )
            & ! [X5: a > $o,X3: a > $o,X4: a] :
                ( ( ( X0 @ X3 )
                  & ! [X7: a] :
                      ( ( X5 @ X7 )
                     => ( ( X3 @ X7 )
                        | ( X4 = X7 ) ) ) )
               => ( X0 @ X5 ) ) )
         => ( X0 @ cB ) ) ),
    inference(negated_conjecture,[status(cth)],[f1]) ).

thf(f1,conjecture,
    ( ( ! [X0: ( a > $o ) > $o] :
          ( ( ! [X3: a > $o,X4: a,X5: a > $o] :
                ( ( ! [X6: a] :
                      ( ( X5 @ X6 )
                     => ( ( X3 @ X6 )
                        | ( X4 = X6 ) ) )
                  & ( X0 @ X3 ) )
               => ( X0 @ X5 ) )
            & ! [X1: a > $o] :
                ( ~ ? [X2: a] : ( X1 @ X2 )
               => ( X0 @ X1 ) ) )
         => ( X0 @ cC ) )
      & ! [X4: a] :
          ( ( cB @ X4 )
         => ( cC @ X4 ) ) )
   => ! [X0: ( a > $o ) > $o] :
        ( ( ! [X1: a > $o] :
              ( ~ ? [X2: a] : ( X1 @ X2 )
             => ( X0 @ X1 ) )
          & ! [X5: a > $o,X3: a > $o,X4: a] :
              ( ( ( X0 @ X3 )
                & ! [X7: a] :
                    ( ( X5 @ X7 )
                   => ( ( X3 @ X7 )
                      | ( X4 = X7 ) ) ) )
             => ( X0 @ X5 ) ) )
       => ( X0 @ cB ) ) ),
    file('/export/starexec/sandbox/tmp/tmp.33a7r4LH82/DTF2THF_7692.p',cTHM531E_pme) ).

thf(f129,plain,
    ~ spl0_2,
    inference(avatar_contradiction_clause,[status(thm)],[f128]) ).

thf(f128,plain,
    ( $false
    | ~ spl0_2 ),
    inference(trivial_inequality_removal,[status(thm)],[f127]) ).

thf(f127,plain,
    ( ( $false = $true )
    | ~ spl0_2 ),
    inference(forward_demodulation,[status(thm)],[f126,f121]) ).

thf(f121,plain,
    ( ! [X0: a] :
        ( $false
        = ( cC @ ( sK4 @ X0 ) ) )
    | ~ spl0_2 ),
    inference(binary_proxy_clausification,[status(thm)],[f120]) ).

thf(f120,plain,
    ( ! [X0: a] :
        ( $false
        = ( ( X0
            = ( sK4 @ X0 ) )
          | ( cC @ ( sK4 @ X0 ) ) ) )
    | ~ spl0_2 ),
    inference(boolean_simplification,[status(thm)],[f119]) ).

thf(f119,plain,
    ( ! [X0: a] :
        ( $false
        = ( $true
         => ( ( X0
              = ( sK4 @ X0 ) )
            | ( cC @ ( sK4 @ X0 ) ) ) ) )
    | ~ spl0_2 ),
    inference(backward_demodulation,[status(thm)],[f107,f118]) ).

thf(f118,plain,
    ( ! [X0: a] :
        ( ( cB @ ( sK4 @ X0 ) )
        = $true )
    | ~ spl0_2 ),
    inference(binary_proxy_clausification,[status(thm)],[f107]) ).

thf(f107,plain,
    ( ! [X0: a] :
        ( $false
        = ( ( cB @ ( sK4 @ X0 ) )
         => ( ( X0
              = ( sK4 @ X0 ) )
            | ( cC @ ( sK4 @ X0 ) ) ) ) )
    | ~ spl0_2 ),
    inference(beta_eta_normalization,[status(thm)],[f101]) ).

thf(f101,plain,
    ( ! [X0: a] :
        ( $false
        = ( ^ [Y0: a] :
              ( ( cB @ Y0 )
             => ( ( X0 = Y0 )
                | ( cC @ Y0 ) ) )
          @ ( sK4 @ X0 ) ) )
    | ~ spl0_2 ),
    inference(sigma_clausification,[status(thm)],[f88]) ).

thf(f88,plain,
    ( ! [X0: a] :
        ( ( !! @ a
          @ ^ [Y0: a] :
              ( ( cB @ Y0 )
             => ( ( X0 = Y0 )
                | ( cC @ Y0 ) ) ) )
        = $false )
    | ~ spl0_2 ),
    inference(not_proxy_clausification,[status(thm)],[f86]) ).

thf(f86,plain,
    ( ! [X0: a] :
        ( $true
        = ( ~ ( !! @ a
              @ ^ [Y0: a] :
                  ( ( cB @ Y0 )
                 => ( ( X0 = Y0 )
                    | ( cC @ Y0 ) ) ) ) ) )
    | ~ spl0_2 ),
    inference(boolean_simplification,[status(thm)],[f85]) ).

thf(f85,plain,
    ( ! [X0: a] :
        ( ( ( !! @ a
            @ ^ [Y0: a] :
                ( ( cB @ Y0 )
               => ( ( X0 = Y0 )
                  | ( cC @ Y0 ) ) ) )
         => $false )
        = $true )
    | ~ spl0_2 ),
    inference(superposition,[status(thm)],[f79,f22]) ).

thf(f22,plain,
    ( $false
    = ( sK2 @ cB ) ),
    inference(boolean_simplification,[status(thm)],[f21]) ).

thf(f21,plain,
    ( $false
    = ( $true
     => ( sK2 @ cB ) ) ),
    inference(backward_demodulation,[status(thm)],[f18,f20]) ).

thf(f79,plain,
    ( ! [X0: a > $o,X1: a] :
        ( ( ( !! @ a
            @ ^ [Y0: a] :
                ( ( X0 @ Y0 )
               => ( ( X1 = Y0 )
                  | ( cC @ Y0 ) ) ) )
         => ( sK2 @ X0 ) )
        = $true )
    | ~ spl0_2 ),
    inference(boolean_simplification,[status(thm)],[f75]) ).

thf(f75,plain,
    ( ! [X0: a > $o,X1: a] :
        ( $true
        = ( ( ( !! @ a
              @ ^ [Y0: a] :
                  ( ( X0 @ Y0 )
                 => ( ( X1 = Y0 )
                    | ( cC @ Y0 ) ) ) )
            & $true )
         => ( sK2 @ X0 ) ) )
    | ~ spl0_2 ),
    inference(superposition,[status(thm)],[f58,f71]) ).

thf(f71,plain,
    ( ( $true
      = ( sK2 @ cC ) )
    | ~ spl0_2 ),
    inference(avatar_component_clause,[status(thm)],[f70]) ).

thf(f70,definition,
    ( spl0_2
  <=> ( $true
      = ( sK2 @ cC ) ) ),
    introduced(definition,[new_symbols(naming,[spl0_2])],[avatar_definition]) ).

thf(f126,plain,
    ( ! [X0: a] :
        ( ( cC @ ( sK4 @ X0 ) )
        = $true )
    | ~ spl0_2 ),
    inference(boolean_simplification,[status(thm)],[f125]) ).

thf(f125,plain,
    ( ! [X0: a] :
        ( ( $true
         => ( cC @ ( sK4 @ X0 ) ) )
        = $true )
    | ~ spl0_2 ),
    inference(superposition,[status(thm)],[f32,f118]) ).

thf(f32,plain,
    ! [X1: a] :
      ( ( ( cB @ X1 )
       => ( cC @ X1 ) )
      = $true ),
    inference(beta_eta_normalization,[status(thm)],[f31]) ).

thf(f31,plain,
    ! [X1: a] :
      ( ( ^ [Y0: a] :
            ( ( cB @ Y0 )
           => ( cC @ Y0 ) )
        @ X1 )
      = $true ),
    inference(pi_clausification,[status(thm)],[f30]) ).

thf(f30,plain,
    ( $true
    = ( !! @ a
      @ ^ [Y0: a] :
          ( ( cB @ Y0 )
         => ( cC @ Y0 ) ) ) ),
    inference(boolean_simplification,[status(thm)],[f29]) ).

thf(f29,plain,
    ( $true
    = ( ( !! @ a
        @ ^ [Y0: a] :
            ( ( cB @ Y0 )
           => ( cC @ Y0 ) ) )
      & $true ) ),
    inference(backward_demodulation,[status(thm)],[f12,f27]) ).

thf(f27,plain,
    ( ( !! @ ( ( a > $o ) > $o )
      @ ^ [Y0: ( a > $o ) > $o] :
          ( ( ( !! @ ( a > $o )
              @ ^ [Y1: a > $o] :
                  ( ~ ( ?? @ a @ Y1 )
                 => ( Y0 @ Y1 ) ) )
            & ( !! @ ( a > $o )
              @ ^ [Y1: a > $o] :
                  ( !! @ a
                  @ ^ [Y2: a] :
                      ( !! @ ( a > $o )
                      @ ^ [Y3: a > $o] :
                          ( ( ( Y0 @ Y3 )
                            & ( !! @ a
                              @ ^ [Y4: a] :
                                  ( ( Y1 @ Y4 )
                                 => ( ( Y2 = Y4 )
                                    | ( Y3 @ Y4 ) ) ) ) )
                         => ( Y0 @ Y1 ) ) ) ) ) )
         => ( Y0 @ cC ) ) )
    = $true ),
    inference(binary_proxy_clausification,[status(thm)],[f12]) ).

thf(f12,plain,
    ( ( ( !! @ a
        @ ^ [Y0: a] :
            ( ( cB @ Y0 )
           => ( cC @ Y0 ) ) )
      & ( !! @ ( ( a > $o ) > $o )
        @ ^ [Y0: ( a > $o ) > $o] :
            ( ( ( !! @ ( a > $o )
                @ ^ [Y1: a > $o] :
                    ( ~ ( ?? @ a @ Y1 )
                   => ( Y0 @ Y1 ) ) )
              & ( !! @ ( a > $o )
                @ ^ [Y1: a > $o] :
                    ( !! @ a
                    @ ^ [Y2: a] :
                        ( !! @ ( a > $o )
                        @ ^ [Y3: a > $o] :
                            ( ( ( Y0 @ Y3 )
                              & ( !! @ a
                                @ ^ [Y4: a] :
                                    ( ( Y1 @ Y4 )
                                   => ( ( Y2 = Y4 )
                                      | ( Y3 @ Y4 ) ) ) ) )
                           => ( Y0 @ Y1 ) ) ) ) ) )
           => ( Y0 @ cC ) ) ) )
    = $true ),
    inference(binary_proxy_clausification,[status(thm)],[f8]) ).

thf(f72,plain,
    ( spl0_1
    | spl0_2 ),
    inference(avatar_split_clause,[status(thm)],[f65,f70,f67]) ).

thf(f65,plain,
    ( ( ( !! @ ( a > $o )
        @ ^ [Y0: a > $o] :
            ( !! @ a
            @ ^ [Y1: a] :
                ( !! @ ( a > $o )
                @ ^ [Y2: a > $o] :
                    ( ( ( sK2 @ Y2 )
                      & ( !! @ a
                        @ ^ [Y3: a] :
                            ( ( Y0 @ Y3 )
                           => ( ( Y1 = Y3 )
                              | ( Y2 @ Y3 ) ) ) ) )
                   => ( sK2 @ Y0 ) ) ) ) )
      = $false )
    | ( $true
      = ( sK2 @ cC ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f50]) ).

thf(f50,plain,
    ( ( ( !! @ ( a > $o )
        @ ^ [Y0: a > $o] :
            ( !! @ a
            @ ^ [Y1: a] :
                ( !! @ ( a > $o )
                @ ^ [Y2: a > $o] :
                    ( ( ( sK2 @ Y2 )
                      & ( !! @ a
                        @ ^ [Y3: a] :
                            ( ( Y0 @ Y3 )
                           => ( ( Y1 = Y3 )
                              | ( Y2 @ Y3 ) ) ) ) )
                   => ( sK2 @ Y0 ) ) ) ) )
     => ( sK2 @ cC ) )
    = $true ),
    inference(boolean_simplification,[status(thm)],[f49]) ).

thf(f49,plain,
    ( ( ( $true
        & ( !! @ ( a > $o )
          @ ^ [Y0: a > $o] :
              ( !! @ a
              @ ^ [Y1: a] :
                  ( !! @ ( a > $o )
                  @ ^ [Y2: a > $o] :
                      ( ( ( sK2 @ Y2 )
                        & ( !! @ a
                          @ ^ [Y3: a] :
                              ( ( Y0 @ Y3 )
                             => ( ( Y1 = Y3 )
                                | ( Y2 @ Y3 ) ) ) ) )
                     => ( sK2 @ Y0 ) ) ) ) ) )
     => ( sK2 @ cC ) )
    = $true ),
    inference(superposition,[status(thm)],[f45,f26]) ).

thf(f26,plain,
    ( ( !! @ ( a > $o )
      @ ^ [Y0: a > $o] :
          ( ~ ( ?? @ a @ Y0 )
         => ( sK2 @ Y0 ) ) )
    = $true ),
    inference(boolean_simplification,[status(thm)],[f25]) ).

thf(f25,plain,
    ( ( $true
      & ( !! @ ( a > $o )
        @ ^ [Y0: a > $o] :
            ( ~ ( ?? @ a @ Y0 )
           => ( sK2 @ Y0 ) ) ) )
    = $true ),
    inference(backward_demodulation,[status(thm)],[f20,f24]) ).

thf(f45,plain,
    ! [X1: ( a > $o ) > $o] :
      ( $true
      = ( ( ( !! @ ( a > $o )
            @ ^ [Y0: a > $o] :
                ( ~ ( ?? @ a @ Y0 )
               => ( X1 @ Y0 ) ) )
          & ( !! @ ( a > $o )
            @ ^ [Y0: a > $o] :
                ( !! @ a
                @ ^ [Y1: a] :
                    ( !! @ ( a > $o )
                    @ ^ [Y2: a > $o] :
                        ( ( ( X1 @ Y2 )
                          & ( !! @ a
                            @ ^ [Y3: a] :
                                ( ( Y0 @ Y3 )
                               => ( ( Y1 = Y3 )
                                  | ( Y2 @ Y3 ) ) ) ) )
                       => ( X1 @ Y0 ) ) ) ) ) )
       => ( X1 @ cC ) ) ),
    inference(beta_eta_normalization,[status(thm)],[f44]) ).

thf(f44,plain,
    ! [X1: ( a > $o ) > $o] :
      ( $true
      = ( ^ [Y0: ( a > $o ) > $o] :
            ( ( ( !! @ ( a > $o )
                @ ^ [Y1: a > $o] :
                    ( ~ ( ?? @ a @ Y1 )
                   => ( Y0 @ Y1 ) ) )
              & ( !! @ ( a > $o )
                @ ^ [Y1: a > $o] :
                    ( !! @ a
                    @ ^ [Y2: a] :
                        ( !! @ ( a > $o )
                        @ ^ [Y3: a > $o] :
                            ( ( ( Y0 @ Y3 )
                              & ( !! @ a
                                @ ^ [Y4: a] :
                                    ( ( Y1 @ Y4 )
                                   => ( ( Y2 = Y4 )
                                      | ( Y3 @ Y4 ) ) ) ) )
                           => ( Y0 @ Y1 ) ) ) ) ) )
           => ( Y0 @ cC ) )
        @ X1 ) ),
    inference(pi_clausification,[status(thm)],[f27]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.08  % Problem  : SEU861^5 : TPTP v9.2.1. Released v4.0.0.
% 0.00/0.09  % Command  : /export/starexec/sandbox/solver/bin/run_DT2H2X /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 0.11/0.29  % Computer : n011.cluster.edu
% 0.11/0.29  % Model    : x86_64 x86_64
% 0.11/0.29  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.29  % Memory   : 8042.1875MB
% 0.11/0.29  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.11/0.29  % CPULimit : 300
% 0.11/0.29  % WCLimit  : 300
% 0.11/0.29  % DateTime : Tue Feb 24 12:35:32 EST 2026
% 0.11/0.29  % CPUTime  : 
% 0.11/0.29  Running /export/starexec/sandbox/solver/bin/run_DT2H2X /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 0.17/0.38  ---- Original DTF file ---
% 0.17/0.38  thf(spec,logic,$$dhol).
% 0.17/0.38  %------------------------------------------------------------------------------
% 0.17/0.38  % File     : SEU861^5 : TPTP v9.2.1. Released v4.0.0.
% 0.17/0.38  % Domain   : Set Theory (Finite sets)
% 0.17/0.38  % Problem  : TPS problem THM531E
% 0.17/0.38  % Version  : Especial.
% 0.17/0.38  % English  : Subset of a finite set is finite.
% 0.17/0.38  
% 0.17/0.38  % Refs     : [Bro09] Brown (2009), Email to Geoff Sutcliffe
% 0.17/0.38  % Source   : [Bro09]
% 0.17/0.38  % Names    : tps_0532 [Bro09]
% 0.17/0.38  %          : THM531E [TPS]
% 0.17/0.38  
% 0.17/0.38  % Status   : Theorem
% 0.17/0.38  % Rating   : 0.11 v9.1.0, 0.12 v9.0.0, 0.20 v8.2.0, 0.23 v8.1.0, 0.09 v7.5.0, 0.00 v7.4.0, 0.22 v7.2.0, 0.12 v7.1.0, 0.25 v7.0.0, 0.14 v6.4.0, 0.17 v6.3.0, 0.20 v6.2.0, 0.00 v6.1.0, 0.14 v5.5.0, 0.17 v5.4.0, 0.20 v5.3.0, 0.40 v5.2.0, 0.20 v5.1.0, 0.40 v5.0.0, 0.20 v4.1.0, 0.00 v4.0.1, 0.33 v4.0.0
% 0.17/0.38  % Syntax   : Number of formulae    :    4 (   0 unt;   3 typ;   0 def)
% 0.17/0.38  %            Number of atoms       :    6 (   2 equ;   0 cnn)
% 0.17/0.38  %            Maximal formula atoms :    6 (   6 avg)
% 0.17/0.38  %            Number of connectives :   35 (   2   ~;   2   |;   5   &;  16   @)
% 0.17/0.38  %                                         (   0 <=>;  10  =>;   0  <=;   0 <~>)
% 0.17/0.38  %            Maximal formula depth :   15 (  15 avg)
% 0.17/0.38  %            Number of types       :    2 (   1 usr)
% 0.17/0.38  %            Number of type conns  :   12 (  12   >;   0   *;   0   +;   0  <<)
% 0.17/0.38  %            Number of symbols     :    3 (   2 usr;   0 con; 1-2 aty)
% 0.17/0.38  %            Number of variables   :   15 (   0   ^;  13   !;   2   ?;  15   :)
% 0.17/0.38  % SPC      : TH0_THM_EQU_NAR
% 0.17/0.38  
% 0.17/0.38  % Comments : This problem is from the TPS library. Copyright (c) 2009 The TPS
% 0.17/0.38  %            project in the Department of Mathematical Sciences at Carnegie
% 0.17/0.38  %            Mellon University. Distributed under the Creative Commons copyleft
% 0.17/0.38  %            license: http://creativecommons.org/licenses/by-sa/3.0/
% 0.17/0.38  %          : Polymorphic definitions expanded.
% 0.17/0.38  %------------------------------------------------------------------------------
% 0.17/0.38  thf(a_type,type,
% 0.17/0.38      a: $tType ).
% 0.17/0.38  
% 0.17/0.38  thf(cB,type,
% 0.17/0.38      cB: a > $o ).
% 0.17/0.38  
% 0.17/0.38  thf(cC,type,
% 0.17/0.38      cC: a > $o ).
% 0.17/0.38  
% 0.17/0.38  thf(cTHM531E_pme,conjecture,
% 0.17/0.38      ( ( ! [P: ( a > $o ) > $o] :
% 0.17/0.38            ( ( ! [E: a > $o] :
% 0.17/0.38                  ( ~ ? [Xt: a] : ( E @ Xt )
% 0.17/0.38                 => ( P @ E ) )
% 0.17/0.38              & ! [Y: a > $o,Xx: a,Z: a > $o] :
% 0.17/0.38                  ( ( ( P @ Y )
% 0.17/0.38                    & ! [Xx_27: a] :
% 0.17/0.38                        ( ( Z @ Xx_27 )
% 0.17/0.38                       => ( ( Y @ Xx_27 )
% 0.17/0.38                          | ( Xx_27 = Xx ) ) ) )
% 0.17/0.38                 => ( P @ Z ) ) )
% 0.17/0.38           => ( P @ cC ) )
% 0.17/0.38        & ! [Xx: a] :
% 0.17/0.38            ( ( cB @ Xx )
% 0.17/0.38           => ( cC @ Xx ) ) )
% 0.17/0.38     => ! [P: ( a > $o ) > $o] :
% 0.17/0.38          ( ( ! [E: a > $o] :
% 0.17/0.38                ( ~ ? [Xt: a] : ( E @ Xt )
% 0.17/0.38               => ( P @ E ) )
% 0.17/0.38            & ! [Y: a > $o,Xx: a,Z: a > $o] :
% 0.17/0.38                ( ( ( P @ Y )
% 0.17/0.38                  & ! [Xx_28: a] :
% 0.17/0.38                      ( ( Z @ Xx_28 )
% 0.17/0.38                     => ( ( Y @ Xx_28 )
% 0.17/0.38                        | ( Xx_28 = Xx ) ) ) )
% 0.17/0.38               => ( P @ Z ) ) )
% 0.17/0.38         => ( P @ cB ) ) ) ).
% 0.17/0.38  
% 0.17/0.38  %------------------------------------------------------------------------------
% 0.17/0.38  ------------------------
% 1.39/1.29  ---- Embedded in THF ---
% 1.39/1.29  %%% This output was generated by embedproblem, version 1.9.5 (library version 1.9).
% 1.39/1.29  %%% Generated on Tue Feb 24 12:35:33 EST 2026
% 1.39/1.29  %%% using '$$dhol' embedding, version 1.3.0.
% 1.39/1.29  %%% Logic specification used:
% 1.39/1.29  %%% thf(spec, logic, $$dhol).
% 1.39/1.29  
% 1.39/1.29  % SZS output start ListOfTHF for /export/starexec/sandbox/tmp/tmp.33a7r4LH82/DTF2DTF7692.p
% See solution above
% 1.39/1.29  ------------------------
% 1.57/1.30  ---- Cleaned THF ---
% 1.57/1.30  thf(a_type,type,
% 1.57/1.30      a: $tType ).
% 1.57/1.30  
% 1.57/1.30  thf(cB,type,
% 1.57/1.30      cB: a > $o ).
% 1.57/1.30  
% 1.57/1.30  thf(cC,type,
% 1.57/1.30      cC: a > $o ).
% 1.57/1.30  
% 1.57/1.30  thf(cTHM531E_pme,conjecture,
% 1.57/1.30      ( ( ! [P: ( a > $o ) > $o] :
% 1.57/1.30            ( ( ! [E: a > $o] :
% 1.57/1.30                  ( ~ ? [Xt: a] : ( E @ Xt )
% 1.57/1.30                 => ( P @ E ) )
% 1.57/1.30              & ! [Y: a > $o,Xx: a,Z: a > $o] :
% 1.57/1.30                  ( ( ( P @ Y )
% 1.57/1.30                    & ! [Xx_27: a] :
% 1.57/1.30                        ( ( Z @ Xx_27 )
% 1.57/1.30                       => ( ( Y @ Xx_27 )
% 1.57/1.30                          | ( Xx_27 = Xx ) ) ) )
% 1.57/1.30                 => ( P @ Z ) ) )
% 1.57/1.30           => ( P @ cC ) )
% 1.57/1.30        & ! [Xx: a] :
% 1.57/1.30            ( ( cB @ Xx )
% 1.57/1.30           => ( cC @ Xx ) ) )
% 1.57/1.30     => ! [P: ( a > $o ) > $o] :
% 1.57/1.30          ( ( ! [E: a > $o] :
% 1.57/1.30                ( ~ ? [Xt: a] : ( E @ Xt )
% 1.57/1.30               => ( P @ E ) )
% 1.57/1.30            & ! [Y: a > $o,Xx: a,Z: a > $o] :
% 1.57/1.30                ( ( ( P @ Y )
% 1.57/1.30                  & ! [Xx_28: a] :
% 1.57/1.30                      ( ( Z @ Xx_28 )
% 1.57/1.30                     => ( ( Y @ Xx_28 )
% 1.57/1.30                        | ( Xx_28 = Xx ) ) ) )
% 1.57/1.30               => ( P @ Z ) ) )
% 1.57/1.30         => ( P @ cB ) ) ) ).
% 1.57/1.30  ------------------------
% 1.57/1.32  % (7795)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_7692 for (2999ds/275Mi)
% 1.57/1.32  % (7790)lrs+1002_1:8_bd=off:fd=off:hud=10:tnu=1:i=183:si=on:rtra=on_0 on DTF2THF_7692 for (2999ds/183Mi)
% 1.57/1.32  % (7794)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_7692 for (2999ds/2Mi)
% 1.57/1.32  % (7793)lrs+10_1:1_au=on:inj=on:i=2:si=on:rtra=on_0 on DTF2THF_7692 for (2999ds/2Mi)
% 1.57/1.32  % (7796)lrs+1004_1:128_cond=on:e2e=on:sp=weighted_frequency:i=18:si=on:rtra=on_0 on DTF2THF_7692 for (2999ds/18Mi)
% 1.57/1.32  % (7792)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_7692 for (2999ds/27Mi)
% 1.57/1.32  % (7791)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_7692 for (2999ds/4Mi)
% 1.57/1.32  % (7793)Instruction limit reached!
% 1.57/1.32  % (7793)------------------------------
% 1.57/1.32  % (7793)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.57/1.32  % (7793)Termination reason: Unknown
% 1.57/1.32  % (7794)Instruction limit reached!
% 1.57/1.32  % (7794)------------------------------
% 1.57/1.32  % (7794)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.57/1.32  % (7794)Termination reason: Unknown
% 1.57/1.32  % (7794)Termination phase: Saturation
% 1.57/1.32  
% 1.57/1.32  % (7794)Memory used [KB]: 1023
% 1.57/1.32  % (7794)Time elapsed: 0.003 s
% 1.57/1.32  % (7794)Instructions burned: 3 (million)
% 1.57/1.32  % (7794)------------------------------
% 1.57/1.32  % (7794)------------------------------
% 1.57/1.32  % (7793)Termination phase: Saturation
% 1.57/1.32  
% 1.57/1.32  % (7793)Memory used [KB]: 1023
% 1.57/1.32  % (7793)Time elapsed: 0.003 s
% 1.57/1.32  % (7793)Instructions burned: 2 (million)
% 1.57/1.32  % (7793)------------------------------
% 1.57/1.32  % (7793)------------------------------
% 1.57/1.32  % (7791)Instruction limit reached!
% 1.57/1.32  % (7791)------------------------------
% 1.57/1.32  % (7791)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.57/1.32  % (7791)Termination reason: Unknown
% 1.57/1.32  % (7791)Termination phase: Saturation
% 1.57/1.32  
% 1.57/1.32  % (7791)Memory used [KB]: 5500
% 1.57/1.32  % (7791)Time elapsed: 0.004 s
% 1.57/1.32  % (7791)Instructions burned: 4 (million)
% 1.57/1.32  % (7791)------------------------------
% 1.57/1.32  % (7791)------------------------------
% 1.57/1.33  % (7796)Instruction limit reached!
% 1.57/1.33  % (7796)------------------------------
% 1.57/1.33  % (7796)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.57/1.33  % (7796)Termination reason: Unknown
% 1.57/1.33  % (7796)Termination phase: Saturation
% 1.57/1.33  
% 1.57/1.33  % (7796)Memory used [KB]: 5628
% 1.57/1.33  % (7796)Time elapsed: 0.011 s
% 1.57/1.33  % (7796)Instructions burned: 18 (million)
% 1.57/1.33  % (7796)------------------------------
% 1.57/1.33  % (7796)------------------------------
% 1.57/1.33  % (7792)Instruction limit reached!
% 1.57/1.33  % (7792)------------------------------
% 1.57/1.33  % (7792)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.57/1.33  % (7792)Termination reason: Unknown
% 1.57/1.33  % (7792)Termination phase: Saturation
% 1.57/1.33  
% 1.57/1.33  % (7792)Memory used [KB]: 5628
% 1.57/1.33  % (7792)Time elapsed: 0.017 s
% 1.57/1.33  % (7792)Instructions burned: 27 (million)
% 1.57/1.33  % (7792)------------------------------
% 1.57/1.33  % (7792)------------------------------
% 1.57/1.34  % (7797)lrs+10_1:1_bet=on:cnfonf=off:fd=off:hud=5:inj=on:i=3:si=on:rtra=on_0 on DTF2THF_7692 for (2999ds/3Mi)
% 1.57/1.34  % (7798)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_7692 for (2999ds/37Mi)
% 1.57/1.34  % (7799)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_7692 for (2999ds/15Mi)
% 1.57/1.34  % (7797)Instruction limit reached!
% 1.57/1.34  % (7797)------------------------------
% 1.57/1.34  % (7797)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.57/1.34  % (7797)Termination reason: Unknown
% 1.57/1.34  % (7797)Termination phase: Saturation
% 1.57/1.34  
% 1.57/1.34  % (7797)Memory used [KB]: 5500
% 1.57/1.34  % (7797)Time elapsed: 0.003 s
% 1.57/1.34  % (7797)Instructions burned: 3 (million)
% 1.57/1.34  % (7797)------------------------------
% 1.57/1.34  % (7797)------------------------------
% 1.57/1.34  % (7800)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_7692 for (2999ds/3Mi)
% 1.57/1.35  % (7799)Instruction limit reached!
% 1.57/1.35  % (7799)------------------------------
% 1.57/1.35  % (7799)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.57/1.35  % (7799)Termination reason: Unknown
% 1.57/1.35  % (7799)Termination phase: Saturation
% 1.57/1.35  
% 1.57/1.35  % (7799)Memory used [KB]: 5628
% 1.57/1.35  % (7799)Time elapsed: 0.010 s
% 1.57/1.35  % (7799)Instructions burned: 16 (million)
% 1.57/1.35  % (7799)------------------------------
% 1.57/1.35  % (7799)------------------------------
% 1.57/1.35  % (7800)Instruction limit reached!
% 1.57/1.35  % (7800)------------------------------
% 1.57/1.35  % (7800)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.57/1.35  % (7800)Termination reason: Unknown
% 1.57/1.35  % (7800)Termination phase: Saturation
% 1.57/1.35  
% 1.57/1.35  % (7800)Memory used [KB]: 5500
% 1.57/1.35  % (7800)Time elapsed: 0.003 s
% 1.57/1.35  % (7800)Instructions burned: 3 (million)
% 1.57/1.35  % (7800)------------------------------
% 1.57/1.35  % (7800)------------------------------
% 1.57/1.35  % (7801)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_7692 for (2999ds/1041Mi)
% 1.57/1.35  % (7802)lrs+10_1:1_av=off:chr=on:plsq=on:slsq=on:i=7:si=on:rtra=on_0 on DTF2THF_7692 for (2999ds/7Mi)
% 1.57/1.35  % (7798)Instruction limit reached!
% 1.57/1.35  % (7798)------------------------------
% 1.57/1.35  % (7798)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.57/1.35  % (7798)Termination reason: Unknown
% 1.57/1.35  % (7798)Termination phase: Saturation
% 1.57/1.35  
% 1.57/1.35  % (7798)Memory used [KB]: 5756
% 1.57/1.35  % (7798)Time elapsed: 0.019 s
% 1.57/1.35  % (7798)Instructions burned: 37 (million)
% 1.57/1.35  % (7798)------------------------------
% 1.57/1.35  % (7798)------------------------------
% 1.57/1.36  % (7802)Instruction limit reached!
% 1.57/1.36  % (7802)------------------------------
% 1.57/1.36  % (7802)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.57/1.36  % (7802)Termination reason: Unknown
% 1.57/1.36  % (7802)Termination phase: Saturation
% 1.57/1.36  
% 1.57/1.36  % (7802)Memory used [KB]: 1023
% 1.57/1.36  % (7802)Time elapsed: 0.005 s
% 1.57/1.36  % (7802)Instructions burned: 7 (million)
% 1.57/1.36  % (7802)------------------------------
% 1.57/1.36  % (7802)------------------------------
% 1.57/1.36  % (7803)lrs+10_1:1_acc=on:amm=sco:cs=on:tgt=full:i=16:si=on:rtra=on_0 on DTF2THF_7692 for (2999ds/16Mi)
% 1.57/1.36  % (7804)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_7692 for (2999ds/3Mi)
% 1.57/1.36  % (7804)Instruction limit reached!
% 1.57/1.36  % (7804)------------------------------
% 1.57/1.36  % (7804)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.57/1.36  % (7804)Termination reason: Unknown
% 1.57/1.36  % (7804)Termination phase: Twee Goal Transformation
% 1.57/1.36  
% 1.57/1.36  % (7804)Memory used [KB]: 1023
% 1.57/1.36  % (7804)Time elapsed: 0.003 s
% 1.57/1.36  % (7804)Instructions burned: 4 (million)
% 1.57/1.36  % (7804)------------------------------
% 1.57/1.36  % (7804)------------------------------
% 1.57/1.37  % (7805)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_7692 for (2999ds/3Mi)
% 1.57/1.37  % (7803)Instruction limit reached!
% 1.57/1.37  % (7803)------------------------------
% 1.57/1.37  % (7803)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.57/1.37  % (7803)Termination reason: Unknown
% 1.57/1.37  % (7803)Termination phase: Saturation
% 1.57/1.37  
% 1.57/1.37  % (7803)Memory used [KB]: 5628
% 1.57/1.37  % (7803)Time elapsed: 0.010 s
% 1.57/1.37  % (7803)Instructions burned: 17 (million)
% 1.57/1.37  % (7803)------------------------------
% 1.57/1.37  % (7803)------------------------------
% 1.57/1.37  % (7805)Instruction limit reached!
% 1.57/1.37  % (7805)------------------------------
% 1.57/1.37  % (7805)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.57/1.37  % (7805)Termination reason: Unknown
% 1.57/1.37  % (7805)Termination phase: Saturation
% 1.57/1.37  
% 1.57/1.37  % (7805)Memory used [KB]: 1023
% 1.57/1.37  % (7805)Time elapsed: 0.003 s
% 1.57/1.37  % (7805)Instructions burned: 3 (million)
% 1.57/1.37  % (7805)------------------------------
% 1.57/1.37  % (7805)------------------------------
% 1.57/1.37  % (7801)First to succeed.
% 1.57/1.37  % (7806)lrs+10_1:1_cnfonf=off:cs=on:hud=3:prag=on:sup=off:i=7:si=on:rtra=on_0 on DTF2THF_7692 for (2999ds/7Mi)
% 1.57/1.38  % (7801)Refutation found. Thanks to Tanya!
% 1.57/1.38  % SZS status Theorem for DTF2THF_7692
% 1.57/1.38  % SZS output start Proof for DTF2THF_7692
% 1.57/1.38  thf(type_def_5, type, a: $tType).
% 1.57/1.38  thf(func_def_0, type, a: $tType).
% 1.57/1.38  thf(func_def_1, type, cB: a > $o).
% 1.57/1.38  thf(func_def_2, type, cC: a > $o).
% 1.57/1.38  thf(func_def_19, type, ph1: !>[X0: $tType]:(X0)).
% 1.57/1.38  thf(func_def_20, type, sK2: (a > $o) > $o).
% 1.57/1.38  thf(func_def_21, type, sK3: a).
% 1.57/1.38  thf(func_def_22, type, sK4: a > a).
% 1.57/1.38  thf(func_def_23, type, sK5: a > $o).
% 1.57/1.38  thf(func_def_24, type, sK6: a).
% 1.57/1.38  thf(func_def_25, type, sK7: a > $o).
% 1.57/1.38  thf(func_def_26, type, sK8: a).
% 1.57/1.38  thf(func_def_27, type, sK9: a > $o).
% 1.57/1.38  thf(f187,plain,(
% 1.57/1.38    $false),
% 1.57/1.38    inference(avatar_sat_refutation,[status(thm)],[f72,f129,f186])).
% 1.57/1.38  thf(f186,plain,(
% 1.57/1.38    ~spl0_1),
% 1.57/1.38    inference(avatar_contradiction_clause,[status(thm)],[f185])).
% 1.57/1.38  thf(f185,plain,(
% 1.57/1.38    $false | ~spl0_1),
% 1.57/1.38    inference(trivial_inequality_removal,[status(thm)],[f184])).
% 1.57/1.38  thf(f184,plain,(
% 1.57/1.38    ($false = $true) | ~spl0_1),
% 1.57/1.38    inference(forward_demodulation,[status(thm)],[f183,f144])).
% 1.57/1.38  thf(f144,plain,(
% 1.57/1.38    ($false = (sK2 @ sK5)) | ~spl0_1),
% 1.57/1.38    inference(boolean_simplification,[status(thm)],[f143])).
% 1.57/1.38  thf(f143,plain,(
% 1.57/1.38    (($true => (sK2 @ sK5)) = $false) | ~spl0_1),
% 1.57/1.38    inference(backward_demodulation,[status(thm)],[f140,f142])).
% 1.57/1.38  thf(f142,plain,(
% 1.57/1.38    (((sK2 @ sK7) & (!! @ a @ (^[Y0 : a]: ((sK5 @ Y0) => ((sK6 = Y0) | (sK7 @ Y0)))))) = $true) | ~spl0_1),
% 1.57/1.38    inference(binary_proxy_clausification,[status(thm)],[f140])).
% 1.57/1.38  thf(f140,plain,(
% 1.57/1.38    ($false = (((sK2 @ sK7) & (!! @ a @ (^[Y0 : a]: ((sK5 @ Y0) => ((sK6 = Y0) | (sK7 @ Y0)))))) => (sK2 @ sK5))) | ~spl0_1),
% 1.57/1.38    inference(beta_eta_normalization,[status(thm)],[f139])).
% 1.57/1.38  thf(f139,plain,(
% 1.57/1.38    ($false = ((^[Y0 : a > $o]: (((sK2 @ Y0) & (!! @ a @ (^[Y1 : a]: ((sK5 @ Y1) => ((sK6 = Y1) | (Y0 @ Y1)))))) => (sK2 @ sK5))) @ sK7)) | ~spl0_1),
% 1.57/1.38    inference(sigma_clausification,[status(thm)],[f138])).
% 1.57/1.38  thf(f138,plain,(
% 1.57/1.38    ($false = (!! @ (a > $o) @ (^[Y0 : a > $o]: (((sK2 @ Y0) & (!! @ a @ (^[Y1 : a]: ((sK5 @ Y1) => ((sK6 = Y1) | (Y0 @ Y1)))))) => (sK2 @ sK5))))) | ~spl0_1),
% 1.57/1.38    inference(beta_eta_normalization,[status(thm)],[f137])).
% 1.57/1.38  thf(f137,plain,(
% 1.57/1.38    (((^[Y0 : a]: (!! @ (a > $o) @ (^[Y1 : a > $o]: (((sK2 @ Y1) & (!! @ a @ (^[Y2 : a]: ((sK5 @ Y2) => ((Y0 = Y2) | (Y1 @ Y2)))))) => (sK2 @ sK5))))) @ sK6) = $false) | ~spl0_1),
% 1.57/1.38    inference(sigma_clausification,[status(thm)],[f134])).
% 1.57/1.38  thf(f134,plain,(
% 1.57/1.38    ($false = (!! @ a @ (^[Y0 : a]: (!! @ (a > $o) @ (^[Y1 : a > $o]: (((sK2 @ Y1) & (!! @ a @ (^[Y2 : a]: ((sK5 @ Y2) => ((Y0 = Y2) | (Y1 @ Y2)))))) => (sK2 @ sK5))))))) | ~spl0_1),
% 1.57/1.38    inference(beta_eta_normalization,[status(thm)],[f132])).
% 1.57/1.38  thf(f132,plain,(
% 1.57/1.38    ($false = ((^[Y0 : a > $o]: (!! @ a @ (^[Y1 : a]: (!! @ (a > $o) @ (^[Y2 : a > $o]: (((sK2 @ Y2) & (!! @ a @ (^[Y3 : a]: ((Y0 @ Y3) => ((Y1 = Y3) | (Y2 @ Y3)))))) => (sK2 @ Y0))))))) @ sK5)) | ~spl0_1),
% 1.57/1.38    inference(sigma_clausification,[status(thm)],[f68])).
% 1.57/1.38  thf(f68,plain,(
% 1.57/1.38    ((!! @ (a > $o) @ (^[Y0 : a > $o]: (!! @ a @ (^[Y1 : a]: (!! @ (a > $o) @ (^[Y2 : a > $o]: (((sK2 @ Y2) & (!! @ a @ (^[Y3 : a]: ((Y0 @ Y3) => ((Y1 = Y3) | (Y2 @ Y3)))))) => (sK2 @ Y0)))))))) = $false) | ~spl0_1),
% 1.57/1.38    inference(avatar_component_clause,[status(thm)],[f67])).
% 1.57/1.38  thf(f67,definition,(
% 1.57/1.38    spl0_1 <=> ((!! @ (a > $o) @ (^[Y0 : a > $o]: (!! @ a @ (^[Y1 : a]: (!! @ (a > $o) @ (^[Y2 : a > $o]: (((sK2 @ Y2) & (!! @ a @ (^[Y3 : a]: ((Y0 @ Y3) => ((Y1 = Y3) | (Y2 @ Y3)))))) => (sK2 @ Y0)))))))) = $false)),
% 1.57/1.38    introduced(definition,[new_symbols(naming,[spl0_1])],[avatar_definition])).
% 1.57/1.38  thf(f183,plain,(
% 1.57/1.38    ($true = (sK2 @ sK5)) | ~spl0_1),
% 1.57/1.38    inference(boolean_simplification,[status(thm)],[f182])).
% 1.57/1.38  thf(f182,plain,(
% 1.57/1.38    (($true => (sK2 @ sK5)) = $true) | ~spl0_1),
% 1.57/1.38    inference(forward_demodulation,[status(thm)],[f181,f169])).
% 1.57/1.38  thf(f169,plain,(
% 1.57/1.38    ((sK2 @ sK9) = $true) | ~spl0_1),
% 1.57/1.38    inference(boolean_simplification,[status(thm)],[f168])).
% 1.57/1.38  thf(f168,plain,(
% 1.57/1.38    (((sK2 @ sK9) & $true) = $true) | ~spl0_1),
% 1.57/1.38    inference(backward_demodulation,[status(thm)],[f163,f166])).
% 1.57/1.38  thf(f166,plain,(
% 1.57/1.38    ((!! @ a @ (^[Y0 : a]: ((sK5 @ Y0) => ((sK6 = Y0) | (sK9 @ Y0))))) = $true) | ~spl0_1),
% 1.57/1.38    inference(binary_proxy_clausification,[status(thm)],[f163])).
% 1.57/1.38  thf(f163,plain,(
% 1.57/1.38    ($true = ((sK2 @ sK9) & (!! @ a @ (^[Y0 : a]: ((sK5 @ Y0) => ((sK6 = Y0) | (sK9 @ Y0))))))) | ~spl0_1),
% 1.57/1.38    inference(not_proxy_clausification,[status(thm)],[f162])).
% 1.57/1.38  thf(f162,plain,(
% 1.57/1.38    ($false = (~ ((sK2 @ sK9) & (!! @ a @ (^[Y0 : a]: ((sK5 @ Y0) => ((sK6 = Y0) | (sK9 @ Y0)))))))) | ~spl0_1),
% 1.57/1.38    inference(beta_eta_normalization,[status(thm)],[f161])).
% 1.57/1.38  thf(f161,plain,(
% 1.57/1.38    ($false = ((^[Y0 : a > $o]: (~ ((sK2 @ Y0) & (!! @ a @ (^[Y1 : a]: ((sK5 @ Y1) => ((sK6 = Y1) | (Y0 @ Y1)))))))) @ sK9)) | ~spl0_1),
% 1.57/1.38    inference(sigma_clausification,[status(thm)],[f146])).
% 1.57/1.38  thf(f146,plain,(
% 1.57/1.38    ($false = (!! @ (a > $o) @ (^[Y0 : a > $o]: (~ ((sK2 @ Y0) & (!! @ a @ (^[Y1 : a]: ((sK5 @ Y1) => ((sK6 = Y1) | (Y0 @ Y1)))))))))) | ~spl0_1),
% 1.57/1.38    inference(boolean_simplification,[status(thm)],[f145])).
% 1.57/1.38  thf(f145,plain,(
% 1.57/1.38    ($false = (!! @ (a > $o) @ (^[Y0 : a > $o]: (((sK2 @ Y0) & (!! @ a @ (^[Y1 : a]: ((sK5 @ Y1) => ((sK6 = Y1) | (Y0 @ Y1)))))) => $false)))) | ~spl0_1),
% 1.57/1.38    inference(backward_demodulation,[status(thm)],[f138,f144])).
% 1.57/1.38  thf(f181,plain,(
% 1.57/1.38    (((sK2 @ sK9) => (sK2 @ sK5)) = $true) | ~spl0_1),
% 1.57/1.38    inference(boolean_simplification,[status(thm)],[f179])).
% 1.57/1.38  thf(f179,plain,(
% 1.57/1.38    ((($true & (sK2 @ sK9)) => (sK2 @ sK5)) = $true) | ~spl0_1),
% 1.57/1.38    inference(superposition,[status(thm)],[f58,f166])).
% 1.57/1.38  thf(f58,plain,(
% 1.57/1.38    ( ! [X2 : a > $o,X3 : a > $o,X1 : a] : (($true = (((!! @ a @ (^[Y0 : a]: ((X3 @ Y0) => ((X1 = Y0) | (X2 @ Y0))))) & (sK2 @ X2)) => (sK2 @ X3)))) )),
% 1.57/1.38    inference(beta_eta_normalization,[status(thm)],[f57])).
% 1.57/1.38  thf(f57,plain,(
% 1.57/1.38    ( ! [X2 : a > $o,X3 : a > $o,X1 : a] : ((((^[Y0 : a > $o]: (((!! @ a @ (^[Y1 : a]: ((Y0 @ Y1) => ((X1 = Y1) | (X2 @ Y1))))) & (sK2 @ X2)) => (sK2 @ Y0))) @ X3) = $true)) )),
% 1.57/1.38    inference(pi_clausification,[status(thm)],[f56])).
% 1.57/1.38  thf(f56,plain,(
% 1.57/1.38    ( ! [X2 : a > $o,X1 : a] : (((!! @ (a > $o) @ (^[Y0 : a > $o]: (((!! @ a @ (^[Y1 : a]: ((Y0 @ Y1) => ((X1 = Y1) | (X2 @ Y1))))) & (sK2 @ X2)) => (sK2 @ Y0)))) = $true)) )),
% 1.57/1.38    inference(beta_eta_normalization,[status(thm)],[f55])).
% 1.57/1.38  thf(f55,plain,(
% 1.57/1.38    ( ! [X2 : a > $o,X1 : a] : ((((^[Y0 : a > $o]: (!! @ (a > $o) @ (^[Y1 : a > $o]: (((!! @ a @ (^[Y2 : a]: ((Y1 @ Y2) => ((X1 = Y2) | (Y0 @ Y2))))) & (sK2 @ Y0)) => (sK2 @ Y1))))) @ X2) = $true)) )),
% 1.57/1.38    inference(pi_clausification,[status(thm)],[f54])).
% 1.57/1.38  thf(f54,plain,(
% 1.57/1.38    ( ! [X1 : a] : (((!! @ (a > $o) @ (^[Y0 : a > $o]: (!! @ (a > $o) @ (^[Y1 : a > $o]: (((!! @ a @ (^[Y2 : a]: ((Y1 @ Y2) => ((X1 = Y2) | (Y0 @ Y2))))) & (sK2 @ Y0)) => (sK2 @ Y1)))))) = $true)) )),
% 1.57/1.38    inference(beta_eta_normalization,[status(thm)],[f53])).
% 1.57/1.38  thf(f53,plain,(
% 1.57/1.38    ( ! [X1 : a] : (($true = ((^[Y0 : a]: (!! @ (a > $o) @ (^[Y1 : a > $o]: (!! @ (a > $o) @ (^[Y2 : a > $o]: (((!! @ a @ (^[Y3 : a]: ((Y2 @ Y3) => ((Y0 = Y3) | (Y1 @ Y3))))) & (sK2 @ Y1)) => (sK2 @ Y2))))))) @ X1))) )),
% 1.57/1.38    inference(pi_clausification,[status(thm)],[f24])).
% 1.57/1.38  thf(f24,plain,(
% 1.57/1.38    ((!! @ a @ (^[Y0 : a]: (!! @ (a > $o) @ (^[Y1 : a > $o]: (!! @ (a > $o) @ (^[Y2 : a > $o]: (((!! @ a @ (^[Y3 : a]: ((Y2 @ Y3) => ((Y0 = Y3) | (Y1 @ Y3))))) & (sK2 @ Y1)) => (sK2 @ Y2)))))))) = $true)),
% 1.57/1.38    inference(binary_proxy_clausification,[status(thm)],[f20])).
% 1.57/1.38  thf(f20,plain,(
% 1.57/1.38    (((!! @ a @ (^[Y0 : a]: (!! @ (a > $o) @ (^[Y1 : a > $o]: (!! @ (a > $o) @ (^[Y2 : a > $o]: (((!! @ a @ (^[Y3 : a]: ((Y2 @ Y3) => ((Y0 = Y3) | (Y1 @ Y3))))) & (sK2 @ Y1)) => (sK2 @ Y2)))))))) & (!! @ (a > $o) @ (^[Y0 : a > $o]: ((~ (?? @ a @ Y0)) => (sK2 @ Y0))))) = $true)),
% 1.57/1.38    inference(binary_proxy_clausification,[status(thm)],[f18])).
% 1.57/1.38  thf(f18,plain,(
% 1.57/1.38    ($false = (((!! @ a @ (^[Y0 : a]: (!! @ (a > $o) @ (^[Y1 : a > $o]: (!! @ (a > $o) @ (^[Y2 : a > $o]: (((!! @ a @ (^[Y3 : a]: ((Y2 @ Y3) => ((Y0 = Y3) | (Y1 @ Y3))))) & (sK2 @ Y1)) => (sK2 @ Y2)))))))) & (!! @ (a > $o) @ (^[Y0 : a > $o]: ((~ (?? @ a @ Y0)) => (sK2 @ Y0))))) => (sK2 @ cB)))),
% 1.57/1.38    inference(beta_eta_normalization,[status(thm)],[f17])).
% 1.57/1.38  thf(f17,plain,(
% 1.57/1.38    (((^[Y0 : (a > $o) > $o]: (((!! @ a @ (^[Y1 : a]: (!! @ (a > $o) @ (^[Y2 : a > $o]: (!! @ (a > $o) @ (^[Y3 : a > $o]: (((!! @ a @ (^[Y4 : a]: ((Y3 @ Y4) => ((Y1 = Y4) | (Y2 @ Y4))))) & (Y0 @ Y2)) => (Y0 @ Y3)))))))) & (!! @ (a > $o) @ (^[Y1 : a > $o]: ((~ (?? @ a @ Y1)) => (Y0 @ Y1))))) => (Y0 @ cB))) @ sK2) = $false)),
% 1.57/1.38    inference(sigma_clausification,[status(thm)],[f11])).
% 1.57/1.38  thf(f11,plain,(
% 1.57/1.38    ($false = (!! @ ((a > $o) > $o) @ (^[Y0 : (a > $o) > $o]: (((!! @ a @ (^[Y1 : a]: (!! @ (a > $o) @ (^[Y2 : a > $o]: (!! @ (a > $o) @ (^[Y3 : a > $o]: (((!! @ a @ (^[Y4 : a]: ((Y3 @ Y4) => ((Y1 = Y4) | (Y2 @ Y4))))) & (Y0 @ Y2)) => (Y0 @ Y3)))))))) & (!! @ (a > $o) @ (^[Y1 : a > $o]: ((~ (?? @ a @ Y1)) => (Y0 @ Y1))))) => (Y0 @ cB)))))),
% 1.57/1.38    inference(binary_proxy_clausification,[status(thm)],[f8])).
% 1.57/1.38  thf(f8,plain,(
% 1.57/1.38    ($false = (((!! @ a @ (^[Y0 : a]: ((cB @ Y0) => (cC @ Y0)))) & (!! @ ((a > $o) > $o) @ (^[Y0 : (a > $o) > $o]: (((!! @ (a > $o) @ (^[Y1 : a > $o]: ((~ (?? @ a @ Y1)) => (Y0 @ Y1)))) & (!! @ (a > $o) @ (^[Y1 : a > $o]: (!! @ a @ (^[Y2 : a]: (!! @ (a > $o) @ (^[Y3 : a > $o]: (((Y0 @ Y3) & (!! @ a @ (^[Y4 : a]: ((Y1 @ Y4) => ((Y2 = Y4) | (Y3 @ Y4)))))) => (Y0 @ Y1))))))))) => (Y0 @ cC))))) => (!! @ ((a > $o) > $o) @ (^[Y0 : (a > $o) > $o]: (((!! @ a @ (^[Y1 : a]: (!! @ (a > $o) @ (^[Y2 : a > $o]: (!! @ (a > $o) @ (^[Y3 : a > $o]: (((!! @ a @ (^[Y4 : a]: ((Y3 @ Y4) => ((Y1 = Y4) | (Y2 @ Y4))))) & (Y0 @ Y2)) => (Y0 @ Y3)))))))) & (!! @ (a > $o) @ (^[Y1 : a > $o]: ((~ (?? @ a @ Y1)) => (Y0 @ Y1))))) => (Y0 @ cB))))))),
% 1.57/1.38    inference(not_proxy_clausification,[status(thm)],[f7])).
% 1.57/1.38  thf(f7,plain,(
% 1.57/1.38    ($true = (~ (((!! @ a @ (^[Y0 : a]: ((cB @ Y0) => (cC @ Y0)))) & (!! @ ((a > $o) > $o) @ (^[Y0 : (a > $o) > $o]: (((!! @ (a > $o) @ (^[Y1 : a > $o]: ((~ (?? @ a @ Y1)) => (Y0 @ Y1)))) & (!! @ (a > $o) @ (^[Y1 : a > $o]: (!! @ a @ (^[Y2 : a]: (!! @ (a > $o) @ (^[Y3 : a > $o]: (((Y0 @ Y3) & (!! @ a @ (^[Y4 : a]: ((Y1 @ Y4) => ((Y2 = Y4) | (Y3 @ Y4)))))) => (Y0 @ Y1))))))))) => (Y0 @ cC))))) => (!! @ ((a > $o) > $o) @ (^[Y0 : (a > $o) > $o]: (((!! @ a @ (^[Y1 : a]: (!! @ (a > $o) @ (^[Y2 : a > $o]: (!! @ (a > $o) @ (^[Y3 : a > $o]: (((!! @ a @ (^[Y4 : a]: ((Y3 @ Y4) => ((Y1 = Y4) | (Y2 @ Y4))))) & (Y0 @ Y2)) => (Y0 @ Y3)))))))) & (!! @ (a > $o) @ (^[Y1 : a > $o]: ((~ (?? @ a @ Y1)) => (Y0 @ Y1))))) => (Y0 @ cB)))))))),
% 1.57/1.38    inference(beta_eta_normalization,[status(thm)],[f6])).
% 1.57/1.38  thf(f6,plain,(
% 1.57/1.38    ((~ (((!! @ a @ (^[Y0 : a]: ((cB @ Y0) => (cC @ Y0)))) & (!! @ ((a > $o) > $o) @ (^[Y0 : (a > $o) > $o]: (((!! @ (a > $o) @ (^[Y1 : a > $o]: ((~ (?? @ a @ (^[Y2 : a]: (Y1 @ Y2)))) => (Y0 @ Y1)))) & (!! @ (a > $o) @ (^[Y1 : a > $o]: (!! @ a @ (^[Y2 : a]: (!! @ (a > $o) @ (^[Y3 : a > $o]: (((Y0 @ Y3) & (!! @ a @ (^[Y4 : a]: ((Y1 @ Y4) => ((Y2 = Y4) | (Y3 @ Y4)))))) => (Y0 @ Y1))))))))) => (Y0 @ cC))))) => (!! @ ((a > $o) > $o) @ (^[Y0 : (a > $o) > $o]: (((!! @ a @ (^[Y1 : a]: (!! @ (a > $o) @ (^[Y2 : a > $o]: (!! @ (a > $o) @ (^[Y3 : a > $o]: (((!! @ a @ (^[Y4 : a]: ((Y3 @ Y4) => ((Y1 = Y4) | (Y2 @ Y4))))) & (Y0 @ Y2)) => (Y0 @ Y3)))))))) & (!! @ (a > $o) @ (^[Y1 : a > $o]: ((~ (?? @ a @ (^[Y2 : a]: (Y1 @ Y2)))) => (Y0 @ Y1))))) => (Y0 @ cB)))))) = $true)),
% 1.57/1.38    inference(cnf_transformation,[status(thm)],[f5])).
% 1.57/1.38  thf(f5,plain,(
% 1.57/1.38    ((~ (((!! @ a @ (^[Y0 : a]: ((cB @ Y0) => (cC @ Y0)))) & (!! @ ((a > $o) > $o) @ (^[Y0 : (a > $o) > $o]: (((!! @ (a > $o) @ (^[Y1 : a > $o]: ((~ (?? @ a @ (^[Y2 : a]: (Y1 @ Y2)))) => (Y0 @ Y1)))) & (!! @ (a > $o) @ (^[Y1 : a > $o]: (!! @ a @ (^[Y2 : a]: (!! @ (a > $o) @ (^[Y3 : a > $o]: (((Y0 @ Y3) & (!! @ a @ (^[Y4 : a]: ((Y1 @ Y4) => ((Y2 = Y4) | (Y3 @ Y4)))))) => (Y0 @ Y1))))))))) => (Y0 @ cC))))) => (!! @ ((a > $o) > $o) @ (^[Y0 : (a > $o) > $o]: (((!! @ a @ (^[Y1 : a]: (!! @ (a > $o) @ (^[Y2 : a > $o]: (!! @ (a > $o) @ (^[Y3 : a > $o]: (((!! @ a @ (^[Y4 : a]: ((Y3 @ Y4) => ((Y1 = Y4) | (Y2 @ Y4))))) & (Y0 @ Y2)) => (Y0 @ Y3)))))))) & (!! @ (a > $o) @ (^[Y1 : a > $o]: ((~ (?? @ a @ (^[Y2 : a]: (Y1 @ Y2)))) => (Y0 @ Y1))))) => (Y0 @ cB)))))) = $true)),
% 1.57/1.38    inference(fool_elimination,[status(thm)],[f4])).
% 1.57/1.38  thf(f4,plain,(
% 1.57/1.38    ~((! [X0 : (a > $o) > $o] : ((! [X1 : a > $o,X2 : a,X3 : a > $o] : ((! [X4 : a] : ((X3 @ X4) => ((X1 @ X4) | (X2 = X4))) & (X0 @ X1)) => (X0 @ X3)) & ! [X5 : a > $o] : (~? [X6 : a] : (X5 @ X6) => (X0 @ X5))) => (X0 @ cC)) & ! [X7 : a] : ((cB @ X7) => (cC @ X7))) => ! [X8 : (a > $o) > $o] : ((! [X9 : a > $o] : (~? [X10 : a] : (X9 @ X10) => (X8 @ X9)) & ! [X11 : a > $o,X12 : a > $o,X13 : a] : (((X8 @ X12) & ! [X14 : a] : ((X11 @ X14) => ((X12 @ X14) | (X13 = X14)))) => (X8 @ X11))) => (X8 @ cB)))),
% 1.57/1.38    inference(rectify,[status(thm)],[f2])).
% 1.57/1.38  thf(f2,negated_conjecture,(
% 1.57/1.38    ~((! [X0 : (a > $o) > $o] : ((! [X3 : a > $o,X4 : a,X5 : a > $o] : ((! [X6 : a] : ((X5 @ X6) => ((X3 @ X6) | (X4 = X6))) & (X0 @ X3)) => (X0 @ X5)) & ! [X1 : a > $o] : (~? [X2 : a] : (X1 @ X2) => (X0 @ X1))) => (X0 @ cC)) & ! [X4 : a] : ((cB @ X4) => (cC @ X4))) => ! [X0 : (a > $o) > $o] : ((! [X1 : a > $o] : (~? [X2 : a] : (X1 @ X2) => (X0 @ X1)) & ! [X5 : a > $o,X3 : a > $o,X4 : a] : (((X0 @ X3) & ! [X7 : a] : ((X5 @ X7) => ((X3 @ X7) | (X4 = X7)))) => (X0 @ X5))) => (X0 @ cB)))),
% 1.57/1.38    inference(negated_conjecture,[status(cth)],[f1])).
% 1.57/1.38  thf(f1,conjecture,(
% 1.57/1.38    (! [X0 : (a > $o) > $o] : ((! [X3 : a > $o,X4 : a,X5 : a > $o] : ((! [X6 : a] : ((X5 @ X6) => ((X3 @ X6) | (X4 = X6))) & (X0 @ X3)) => (X0 @ X5)) & ! [X1 : a > $o] : (~? [X2 : a] : (X1 @ X2) => (X0 @ X1))) => (X0 @ cC)) & ! [X4 : a] : ((cB @ X4) => (cC @ X4))) => ! [X0 : (a > $o) > $o] : ((! [X1 : a > $o] : (~? [X2 : a] : (X1 @ X2) => (X0 @ X1)) & ! [X5 : a > $o,X3 : a > $o,X4 : a] : (((X0 @ X3) & ! [X7 : a] : ((X5 @ X7) => ((X3 @ X7) | (X4 = X7)))) => (X0 @ X5))) => (X0 @ cB))),
% 1.57/1.38    file('/export/starexec/sandbox/tmp/tmp.33a7r4LH82/DTF2THF_7692.p',cTHM531E_pme)).
% 1.57/1.38  thf(f129,plain,(
% 1.57/1.38    ~spl0_2),
% 1.57/1.38    inference(avatar_contradiction_clause,[status(thm)],[f128])).
% 1.57/1.38  thf(f128,plain,(
% 1.57/1.38    $false | ~spl0_2),
% 1.57/1.38    inference(trivial_inequality_removal,[status(thm)],[f127])).
% 1.57/1.38  thf(f127,plain,(
% 1.57/1.38    ($false = $true) | ~spl0_2),
% 1.57/1.38    inference(forward_demodulation,[status(thm)],[f126,f121])).
% 1.57/1.38  thf(f121,plain,(
% 1.57/1.38    ( ! [X0 : a] : (($false = (cC @ (sK4 @ X0)))) ) | ~spl0_2),
% 1.57/1.38    inference(binary_proxy_clausification,[status(thm)],[f120])).
% 1.57/1.38  thf(f120,plain,(
% 1.57/1.38    ( ! [X0 : a] : (($false = ((X0 = (sK4 @ X0)) | (cC @ (sK4 @ X0))))) ) | ~spl0_2),
% 1.57/1.38    inference(boolean_simplification,[status(thm)],[f119])).
% 1.57/1.38  thf(f119,plain,(
% 1.57/1.38    ( ! [X0 : a] : (($false = ($true => ((X0 = (sK4 @ X0)) | (cC @ (sK4 @ X0)))))) ) | ~spl0_2),
% 1.57/1.38    inference(backward_demodulation,[status(thm)],[f107,f118])).
% 1.57/1.38  thf(f118,plain,(
% 1.57/1.38    ( ! [X0 : a] : (((cB @ (sK4 @ X0)) = $true)) ) | ~spl0_2),
% 1.57/1.38    inference(binary_proxy_clausification,[status(thm)],[f107])).
% 1.57/1.38  thf(f107,plain,(
% 1.57/1.38    ( ! [X0 : a] : (($false = ((cB @ (sK4 @ X0)) => ((X0 = (sK4 @ X0)) | (cC @ (sK4 @ X0)))))) ) | ~spl0_2),
% 1.57/1.38    inference(beta_eta_normalization,[status(thm)],[f101])).
% 1.57/1.38  thf(f101,plain,(
% 1.57/1.38    ( ! [X0 : a] : (($false = ((^[Y0 : a]: ((cB @ Y0) => ((X0 = Y0) | (cC @ Y0)))) @ (sK4 @ X0)))) ) | ~spl0_2),
% 1.57/1.38    inference(sigma_clausification,[status(thm)],[f88])).
% 1.57/1.38  thf(f88,plain,(
% 1.57/1.38    ( ! [X0 : a] : (((!! @ a @ (^[Y0 : a]: ((cB @ Y0) => ((X0 = Y0) | (cC @ Y0))))) = $false)) ) | ~spl0_2),
% 1.57/1.38    inference(not_proxy_clausification,[status(thm)],[f86])).
% 1.57/1.38  thf(f86,plain,(
% 1.57/1.38    ( ! [X0 : a] : (($true = (~ (!! @ a @ (^[Y0 : a]: ((cB @ Y0) => ((X0 = Y0) | (cC @ Y0)))))))) ) | ~spl0_2),
% 1.57/1.38    inference(boolean_simplification,[status(thm)],[f85])).
% 1.57/1.38  thf(f85,plain,(
% 1.57/1.38    ( ! [X0 : a] : ((((!! @ a @ (^[Y0 : a]: ((cB @ Y0) => ((X0 = Y0) | (cC @ Y0))))) => $false) = $true)) ) | ~spl0_2),
% 1.57/1.38    inference(superposition,[status(thm)],[f79,f22])).
% 1.57/1.38  thf(f22,plain,(
% 1.57/1.38    ($false = (sK2 @ cB))),
% 1.57/1.38    inference(boolean_simplification,[status(thm)],[f21])).
% 1.57/1.38  thf(f21,plain,(
% 1.57/1.38    ($false = ($true => (sK2 @ cB)))),
% 1.57/1.38    inference(backward_demodulation,[status(thm)],[f18,f20])).
% 1.57/1.38  thf(f79,plain,(
% 1.57/1.38    ( ! [X0 : a > $o,X1 : a] : ((((!! @ a @ (^[Y0 : a]: ((X0 @ Y0) => ((X1 = Y0) | (cC @ Y0))))) => (sK2 @ X0)) = $true)) ) | ~spl0_2),
% 1.57/1.38    inference(boolean_simplification,[status(thm)],[f75])).
% 1.57/1.38  thf(f75,plain,(
% 1.57/1.38    ( ! [X0 : a > $o,X1 : a] : (($true = (((!! @ a @ (^[Y0 : a]: ((X0 @ Y0) => ((X1 = Y0) | (cC @ Y0))))) & $true) => (sK2 @ X0)))) ) | ~spl0_2),
% 1.57/1.38    inference(superposition,[status(thm)],[f58,f71])).
% 1.57/1.38  thf(f71,plain,(
% 1.57/1.38    ($true = (sK2 @ cC)) | ~spl0_2),
% 1.57/1.38    inference(avatar_component_clause,[status(thm)],[f70])).
% 1.57/1.38  thf(f70,definition,(
% 1.57/1.38    spl0_2 <=> ($true = (sK2 @ cC))),
% 1.57/1.38    introduced(definition,[new_symbols(naming,[spl0_2])],[avatar_definition])).
% 1.57/1.38  thf(f126,plain,(
% 1.57/1.38    ( ! [X0 : a] : (((cC @ (sK4 @ X0)) = $true)) ) | ~spl0_2),
% 1.57/1.38    inference(boolean_simplification,[status(thm)],[f125])).
% 1.57/1.38  thf(f125,plain,(
% 1.57/1.38    ( ! [X0 : a] : ((($true => (cC @ (sK4 @ X0))) = $true)) ) | ~spl0_2),
% 1.57/1.38    inference(superposition,[status(thm)],[f32,f118])).
% 1.57/1.38  thf(f32,plain,(
% 1.57/1.38    ( ! [X1 : a] : ((((cB @ X1) => (cC @ X1)) = $true)) )),
% 1.57/1.38    inference(beta_eta_normalization,[status(thm)],[f31])).
% 1.57/1.38  thf(f31,plain,(
% 1.57/1.38    ( ! [X1 : a] : ((((^[Y0 : a]: ((cB @ Y0) => (cC @ Y0))) @ X1) = $true)) )),
% 1.57/1.38    inference(pi_clausification,[status(thm)],[f30])).
% 1.57/1.38  thf(f30,plain,(
% 1.57/1.38    ($true = (!! @ a @ (^[Y0 : a]: ((cB @ Y0) => (cC @ Y0)))))),
% 1.57/1.38    inference(boolean_simplification,[status(thm)],[f29])).
% 1.57/1.38  thf(f29,plain,(
% 1.57/1.38    ($true = ((!! @ a @ (^[Y0 : a]: ((cB @ Y0) => (cC @ Y0)))) & $true))),
% 1.57/1.38    inference(backward_demodulation,[status(thm)],[f12,f27])).
% 1.57/1.38  thf(f27,plain,(
% 1.57/1.38    ((!! @ ((a > $o) > $o) @ (^[Y0 : (a > $o) > $o]: (((!! @ (a > $o) @ (^[Y1 : a > $o]: ((~ (?? @ a @ Y1)) => (Y0 @ Y1)))) & (!! @ (a > $o) @ (^[Y1 : a > $o]: (!! @ a @ (^[Y2 : a]: (!! @ (a > $o) @ (^[Y3 : a > $o]: (((Y0 @ Y3) & (!! @ a @ (^[Y4 : a]: ((Y1 @ Y4) => ((Y2 = Y4) | (Y3 @ Y4)))))) => (Y0 @ Y1))))))))) => (Y0 @ cC)))) = $true)),
% 1.57/1.38    inference(binary_proxy_clausification,[status(thm)],[f12])).
% 1.57/1.38  thf(f12,plain,(
% 1.57/1.38    (((!! @ a @ (^[Y0 : a]: ((cB @ Y0) => (cC @ Y0)))) & (!! @ ((a > $o) > $o) @ (^[Y0 : (a > $o) > $o]: (((!! @ (a > $o) @ (^[Y1 : a > $o]: ((~ (?? @ a @ Y1)) => (Y0 @ Y1)))) & (!! @ (a > $o) @ (^[Y1 : a > $o]: (!! @ a @ (^[Y2 : a]: (!! @ (a > $o) @ (^[Y3 : a > $o]: (((Y0 @ Y3) & (!! @ a @ (^[Y4 : a]: ((Y1 @ Y4) => ((Y2 = Y4) | (Y3 @ Y4)))))) => (Y0 @ Y1))))))))) => (Y0 @ cC))))) = $true)),
% 1.57/1.38    inference(binary_proxy_clausification,[status(thm)],[f8])).
% 1.57/1.38  thf(f72,plain,(
% 1.57/1.38    spl0_1 | spl0_2),
% 1.57/1.38    inference(avatar_split_clause,[status(thm)],[f65,f70,f67])).
% 1.57/1.38  thf(f65,plain,(
% 1.57/1.38    ((!! @ (a > $o) @ (^[Y0 : a > $o]: (!! @ a @ (^[Y1 : a]: (!! @ (a > $o) @ (^[Y2 : a > $o]: (((sK2 @ Y2) & (!! @ a @ (^[Y3 : a]: ((Y0 @ Y3) => ((Y1 = Y3) | (Y2 @ Y3)))))) => (sK2 @ Y0)))))))) = $false) | ($true = (sK2 @ cC))),
% 1.57/1.38    inference(binary_proxy_clausification,[status(thm)],[f50])).
% 1.57/1.38  thf(f50,plain,(
% 1.57/1.38    (((!! @ (a > $o) @ (^[Y0 : a > $o]: (!! @ a @ (^[Y1 : a]: (!! @ (a > $o) @ (^[Y2 : a > $o]: (((sK2 @ Y2) & (!! @ a @ (^[Y3 : a]: ((Y0 @ Y3) => ((Y1 = Y3) | (Y2 @ Y3)))))) => (sK2 @ Y0)))))))) => (sK2 @ cC)) = $true)),
% 1.57/1.38    inference(boolean_simplification,[status(thm)],[f49])).
% 1.57/1.38  thf(f49,plain,(
% 1.57/1.38    ((($true & (!! @ (a > $o) @ (^[Y0 : a > $o]: (!! @ a @ (^[Y1 : a]: (!! @ (a > $o) @ (^[Y2 : a > $o]: (((sK2 @ Y2) & (!! @ a @ (^[Y3 : a]: ((Y0 @ Y3) => ((Y1 = Y3) | (Y2 @ Y3)))))) => (sK2 @ Y0))))))))) => (sK2 @ cC)) = $true)),
% 1.57/1.38    inference(superposition,[status(thm)],[f45,f26])).
% 1.57/1.38  thf(f26,plain,(
% 1.57/1.38    ((!! @ (a > $o) @ (^[Y0 : a > $o]: ((~ (?? @ a @ Y0)) => (sK2 @ Y0)))) = $true)),
% 1.57/1.38    inference(boolean_simplification,[status(thm)],[f25])).
% 1.57/1.38  thf(f25,plain,(
% 1.57/1.38    (($true & (!! @ (a > $o) @ (^[Y0 : a > $o]: ((~ (?? @ a @ Y0)) => (sK2 @ Y0))))) = $true)),
% 1.57/1.38    inference(backward_demodulation,[status(thm)],[f20,f24])).
% 1.57/1.38  thf(f45,plain,(
% 1.57/1.38    ( ! [X1 : (a > $o) > $o] : (($true = (((!! @ (a > $o) @ (^[Y0 : a > $o]: ((~ (?? @ a @ Y0)) => (X1 @ Y0)))) & (!! @ (a > $o) @ (^[Y0 : a > $o]: (!! @ a @ (^[Y1 : a]: (!! @ (a > $o) @ (^[Y2 : a > $o]: (((X1 @ Y2) & (!! @ a @ (^[Y3 : a]: ((Y0 @ Y3) => ((Y1 = Y3) | (Y2 @ Y3)))))) => (X1 @ Y0))))))))) => (X1 @ cC)))) )),
% 1.57/1.38    inference(beta_eta_normalization,[status(thm)],[f44])).
% 1.57/1.38  thf(f44,plain,(
% 1.57/1.38    ( ! [X1 : (a > $o) > $o] : (($true = ((^[Y0 : (a > $o) > $o]: (((!! @ (a > $o) @ (^[Y1 : a > $o]: ((~ (?? @ a @ Y1)) => (Y0 @ Y1)))) & (!! @ (a > $o) @ (^[Y1 : a > $o]: (!! @ a @ (^[Y2 : a]: (!! @ (a > $o) @ (^[Y3 : a > $o]: (((Y0 @ Y3) & (!! @ a @ (^[Y4 : a]: ((Y1 @ Y4) => ((Y2 = Y4) | (Y3 @ Y4)))))) => (Y0 @ Y1))))))))) => (Y0 @ cC))) @ X1))) )),
% 1.57/1.38    inference(pi_clausification,[status(thm)],[f27])).
% 1.57/1.38  % SZS output end Proof for DTF2THF_7692
% 1.57/1.38  % (7801)------------------------------
% 1.57/1.38  % (7801)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.57/1.38  % (7801)Termination reason: Refutation
% 1.57/1.38  
% 1.57/1.38  % (7801)Memory used [KB]: 5756
% 1.57/1.38  % (7801)Time elapsed: 0.027 s
% 1.57/1.38  % (7801)Instructions burned: 41 (million)
% 1.57/1.38  % (7801)------------------------------
% 1.57/1.38  % (7801)------------------------------
% 1.57/1.38  % (7789)Success in time 0.067 s
%------------------------------------------------------------------------------