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DT2H2X---1.9.5.THM-Ref.s

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%------------------------------------------------------------------------------
% File     : DT2H2X---1.9.5
% Problem  : SEV292^5 : TPTP v9.2.1. Bugfixed v6.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : /export/starexec/sandbox2/solver/bin/run_DT2H2X /export/starexec/sandbox2/benchmark/theBenchmark.p 300

% Computer : n018.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 09:40:45 AM UTC 2026

% Result   : Theorem 1.65s 1.33s
% Output   : Refutation 1.65s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   17
%            Number of leaves      :    7
% Syntax   : Number of formulae    :   69 (  32 unt;   0 typ;   2 def)
%            Number of atoms       :  627 ( 181 equ;   0 cnn)
%            Maximal formula atoms :    8 (   9 avg)
%            Number of connectives : 1814 ( 222   ~;  32   |; 288   &; 948   @)
%                                         (   2 <=>;  88  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    8 (   2 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :  536 ( 536   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   15 (  10 usr;   6 con; 0-2 aty)
%                                         (  63  !!; 171  ??;   0 @@+;   0 @@-)
%            Number of variables   :  425 ( 408   ^;  10   !;   7   ?; 425   :)

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

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

thf(func_def_2,type,
    cSUCC: ( ( $i > $o ) > $o ) > ( $i > $o ) > $o ).

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

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

thf(func_def_22,type,
    ph1: 
      !>[X0: $tType] : X0 ).

thf(func_def_23,type,
    sK2: ( ( $i > $o ) > $o ) > $o ).

thf(func_def_24,type,
    sK3: ( ( $i > $o ) > $o ) > $o ).

thf(f103,plain,
    $false,
    inference(avatar_sat_refutation,[status(thm)],[f45,f74,f102]) ).

thf(f102,plain,
    ~ spl0_1,
    inference(avatar_contradiction_clause,[status(thm)],[f101]) ).

thf(f101,plain,
    ( $false
    | ~ spl0_1 ),
    inference(trivial_inequality_removal,[status(thm)],[f100]) ).

thf(f100,plain,
    ( ( $false = $true )
    | ~ spl0_1 ),
    inference(forward_demodulation,[status(thm)],[f99,f81]) ).

thf(f81,plain,
    ( ( ( sK3
        @ ^ [Y0: $i > $o] :
            ( ?? @ $i
            @ ^ [Y1: $i] :
                ( ( Y0 @ Y1 )
                & ~ ( ?? @ $i
                    @ ^ [Y2: $i] :
                        ( ( Y1 != Y2 )
                        & ( Y0 @ Y2 ) ) ) ) ) )
      = $false )
    | ~ spl0_1 ),
    inference(binary_proxy_clausification,[status(thm)],[f80]) ).

thf(f80,plain,
    ( ( ( ( ( !! @ ( ( $i > $o ) > $o )
            @ ^ [Y0: ( $i > $o ) > $o] :
                ( ( sK3 @ Y0 )
               => ( sK3
                  @ ^ [Y1: $i > $o] :
                      ( ?? @ $i
                      @ ^ [Y2: $i] :
                          ( ( Y1 @ Y2 )
                          & ( Y0
                            @ ^ [Y3: $i] :
                                ( ( Y2 != Y3 )
                                & ( Y1 @ Y3 ) ) ) ) ) ) ) )
          & ( sK3
            @ ^ [Y0: $i > $o] :
                ~ ( ?? @ $i @ Y0 ) ) )
       => ( sK3
          @ ^ [Y0: $i > $o] :
              ( ?? @ $i
              @ ^ [Y1: $i] :
                  ( ( Y0 @ Y1 )
                  & ~ ( ?? @ $i
                      @ ^ [Y2: $i] :
                          ( ( Y1 != Y2 )
                          & ( Y0 @ Y2 ) ) ) ) ) ) )
      = $false )
    | ~ spl0_1 ),
    inference(beta_eta_normalization,[status(thm)],[f77]) ).

thf(f77,plain,
    ( ( $false
      = ( ^ [Y0: ( ( $i > $o ) > $o ) > $o] :
            ( ( ( !! @ ( ( $i > $o ) > $o )
                @ ^ [Y1: ( $i > $o ) > $o] :
                    ( ( Y0 @ Y1 )
                   => ( Y0
                      @ ^ [Y2: $i > $o] :
                          ( ?? @ $i
                          @ ^ [Y3: $i] :
                              ( ( Y2 @ Y3 )
                              & ( Y1
                                @ ^ [Y4: $i] :
                                    ( ( Y3 != Y4 )
                                    & ( Y2 @ Y4 ) ) ) ) ) ) ) )
              & ( Y0
                @ ^ [Y1: $i > $o] :
                    ~ ( ?? @ $i @ Y1 ) ) )
           => ( Y0
              @ ^ [Y1: $i > $o] :
                  ( ?? @ $i
                  @ ^ [Y2: $i] :
                      ( ( Y1 @ Y2 )
                      & ~ ( ?? @ $i
                          @ ^ [Y3: $i] :
                              ( ( Y2 != Y3 )
                              & ( Y1 @ Y3 ) ) ) ) ) ) )
        @ sK3 ) )
    | ~ spl0_1 ),
    inference(sigma_clausification,[status(thm)],[f41]) ).

thf(f41,plain,
    ( ( $false
      = ( !! @ ( ( ( $i > $o ) > $o ) > $o )
        @ ^ [Y0: ( ( $i > $o ) > $o ) > $o] :
            ( ( ( !! @ ( ( $i > $o ) > $o )
                @ ^ [Y1: ( $i > $o ) > $o] :
                    ( ( Y0 @ Y1 )
                   => ( Y0
                      @ ^ [Y2: $i > $o] :
                          ( ?? @ $i
                          @ ^ [Y3: $i] :
                              ( ( Y2 @ Y3 )
                              & ( Y1
                                @ ^ [Y4: $i] :
                                    ( ( Y3 != Y4 )
                                    & ( Y2 @ Y4 ) ) ) ) ) ) ) )
              & ( Y0
                @ ^ [Y1: $i > $o] :
                    ~ ( ?? @ $i @ Y1 ) ) )
           => ( Y0
              @ ^ [Y1: $i > $o] :
                  ( ?? @ $i
                  @ ^ [Y2: $i] :
                      ( ( Y1 @ Y2 )
                      & ~ ( ?? @ $i
                          @ ^ [Y3: $i] :
                              ( ( Y2 != Y3 )
                              & ( Y1 @ Y3 ) ) ) ) ) ) ) ) )
    | ~ spl0_1 ),
    inference(avatar_component_clause,[status(thm)],[f40]) ).

thf(f40,definition,
    ( spl0_1
  <=> ( $false
      = ( !! @ ( ( ( $i > $o ) > $o ) > $o )
        @ ^ [Y0: ( ( $i > $o ) > $o ) > $o] :
            ( ( ( !! @ ( ( $i > $o ) > $o )
                @ ^ [Y1: ( $i > $o ) > $o] :
                    ( ( Y0 @ Y1 )
                   => ( Y0
                      @ ^ [Y2: $i > $o] :
                          ( ?? @ $i
                          @ ^ [Y3: $i] :
                              ( ( Y2 @ Y3 )
                              & ( Y1
                                @ ^ [Y4: $i] :
                                    ( ( Y3 != Y4 )
                                    & ( Y2 @ Y4 ) ) ) ) ) ) ) )
              & ( Y0
                @ ^ [Y1: $i > $o] :
                    ~ ( ?? @ $i @ Y1 ) ) )
           => ( Y0
              @ ^ [Y1: $i > $o] :
                  ( ?? @ $i
                  @ ^ [Y2: $i] :
                      ( ( Y1 @ Y2 )
                      & ~ ( ?? @ $i
                          @ ^ [Y3: $i] :
                              ( ( Y2 != Y3 )
                              & ( Y1 @ Y3 ) ) ) ) ) ) ) ) ) ),
    introduced(definition,[new_symbols(naming,[spl0_1])],[avatar_definition]) ).

thf(f99,plain,
    ( ( ( sK3
        @ ^ [Y0: $i > $o] :
            ( ?? @ $i
            @ ^ [Y1: $i] :
                ( ( Y0 @ Y1 )
                & ~ ( ?? @ $i
                    @ ^ [Y2: $i] :
                        ( ( Y1 != Y2 )
                        & ( Y0 @ Y2 ) ) ) ) ) )
      = $true )
    | ~ spl0_1 ),
    inference(boolean_simplification,[status(thm)],[f98]) ).

thf(f98,plain,
    ( ( ( $true
       => ( sK3
          @ ^ [Y0: $i > $o] :
              ( ?? @ $i
              @ ^ [Y1: $i] :
                  ( ( Y0 @ Y1 )
                  & ~ ( ?? @ $i
                      @ ^ [Y2: $i] :
                          ( ( Y1 != Y2 )
                          & ( Y0 @ Y2 ) ) ) ) ) ) )
      = $true )
    | ~ spl0_1 ),
    inference(beta_eta_normalization,[status(thm)],[f94]) ).

thf(f94,plain,
    ( ( ( $true
       => ( sK3
          @ ^ [Y0: $i > $o] :
              ( ?? @ $i
              @ ^ [Y1: $i] :
                  ( ( Y0 @ Y1 )
                  & ( ^ [Y2: $i > $o] :
                        ~ ( ?? @ $i @ Y2 )
                    @ ^ [Y2: $i] :
                        ( ( Y1 != Y2 )
                        & ( Y0 @ Y2 ) ) ) ) ) ) )
      = $true )
    | ~ spl0_1 ),
    inference(superposition,[status(thm)],[f92,f87]) ).

thf(f87,plain,
    ( ( ( sK3
        @ ^ [Y0: $i > $o] :
            ~ ( ?? @ $i @ Y0 ) )
      = $true )
    | ~ spl0_1 ),
    inference(binary_proxy_clausification,[status(thm)],[f82]) ).

thf(f82,plain,
    ( ( ( ( !! @ ( ( $i > $o ) > $o )
          @ ^ [Y0: ( $i > $o ) > $o] :
              ( ( sK3 @ Y0 )
             => ( sK3
                @ ^ [Y1: $i > $o] :
                    ( ?? @ $i
                    @ ^ [Y2: $i] :
                        ( ( Y1 @ Y2 )
                        & ( Y0
                          @ ^ [Y3: $i] :
                              ( ( Y2 != Y3 )
                              & ( Y1 @ Y3 ) ) ) ) ) ) ) )
        & ( sK3
          @ ^ [Y0: $i > $o] :
              ~ ( ?? @ $i @ Y0 ) ) )
      = $true )
    | ~ spl0_1 ),
    inference(binary_proxy_clausification,[status(thm)],[f80]) ).

thf(f92,plain,
    ( ! [X1: ( $i > $o ) > $o] :
        ( ( ( sK3 @ X1 )
         => ( sK3
            @ ^ [Y0: $i > $o] :
                ( ?? @ $i
                @ ^ [Y1: $i] :
                    ( ( Y0 @ Y1 )
                    & ( X1
                      @ ^ [Y2: $i] :
                          ( ( Y1 != Y2 )
                          & ( Y0 @ Y2 ) ) ) ) ) ) )
        = $true )
    | ~ spl0_1 ),
    inference(beta_eta_normalization,[status(thm)],[f91]) ).

thf(f91,plain,
    ( ! [X1: ( $i > $o ) > $o] :
        ( ( ^ [Y0: ( $i > $o ) > $o] :
              ( ( sK3 @ Y0 )
             => ( sK3
                @ ^ [Y1: $i > $o] :
                    ( ?? @ $i
                    @ ^ [Y2: $i] :
                        ( ( Y1 @ Y2 )
                        & ( Y0
                          @ ^ [Y3: $i] :
                              ( ( Y2 != Y3 )
                              & ( Y1 @ Y3 ) ) ) ) ) ) )
          @ X1 )
        = $true )
    | ~ spl0_1 ),
    inference(pi_clausification,[status(thm)],[f90]) ).

thf(f90,plain,
    ( ( ( !! @ ( ( $i > $o ) > $o )
        @ ^ [Y0: ( $i > $o ) > $o] :
            ( ( sK3 @ Y0 )
           => ( sK3
              @ ^ [Y1: $i > $o] :
                  ( ?? @ $i
                  @ ^ [Y2: $i] :
                      ( ( Y1 @ Y2 )
                      & ( Y0
                        @ ^ [Y3: $i] :
                            ( ( Y2 != Y3 )
                            & ( Y1 @ Y3 ) ) ) ) ) ) ) )
      = $true )
    | ~ spl0_1 ),
    inference(boolean_simplification,[status(thm)],[f89]) ).

thf(f89,plain,
    ( ( ( ( !! @ ( ( $i > $o ) > $o )
          @ ^ [Y0: ( $i > $o ) > $o] :
              ( ( sK3 @ Y0 )
             => ( sK3
                @ ^ [Y1: $i > $o] :
                    ( ?? @ $i
                    @ ^ [Y2: $i] :
                        ( ( Y1 @ Y2 )
                        & ( Y0
                          @ ^ [Y3: $i] :
                              ( ( Y2 != Y3 )
                              & ( Y1 @ Y3 ) ) ) ) ) ) ) )
        & $true )
      = $true )
    | ~ spl0_1 ),
    inference(backward_demodulation,[status(thm)],[f82,f87]) ).

thf(f74,plain,
    ~ spl0_2,
    inference(avatar_contradiction_clause,[status(thm)],[f73]) ).

thf(f73,plain,
    ( $false
    | ~ spl0_2 ),
    inference(trivial_inequality_removal,[status(thm)],[f72]) ).

thf(f72,plain,
    ( ( $false = $true )
    | ~ spl0_2 ),
    inference(forward_demodulation,[status(thm)],[f69,f53]) ).

thf(f53,plain,
    ( ( $false
      = ( sK2
        @ ^ [Y0: $i > $o] :
            ( ?? @ $i
            @ ^ [Y1: $i] :
                ( ( Y0 @ Y1 )
                & ( ?? @ $i
                  @ ^ [Y2: $i] :
                      ( ( Y1 != Y2 )
                      & ( Y0 @ Y2 )
                      & ~ ( ?? @ $i
                          @ ^ [Y3: $i] :
                              ( ( Y2 != Y3 )
                              & ( Y1 != Y3 )
                              & ( Y0 @ Y3 ) ) ) ) ) ) ) ) )
    | ~ spl0_2 ),
    inference(binary_proxy_clausification,[status(thm)],[f52]) ).

thf(f52,plain,
    ( ( $false
      = ( ( ( !! @ ( ( $i > $o ) > $o )
            @ ^ [Y0: ( $i > $o ) > $o] :
                ( ( sK2 @ Y0 )
               => ( sK2
                  @ ^ [Y1: $i > $o] :
                      ( ?? @ $i
                      @ ^ [Y2: $i] :
                          ( ( Y1 @ Y2 )
                          & ( Y0
                            @ ^ [Y3: $i] :
                                ( ( Y2 != Y3 )
                                & ( Y1 @ Y3 ) ) ) ) ) ) ) )
          & ( sK2
            @ ^ [Y0: $i > $o] :
                ( ?? @ $i
                @ ^ [Y1: $i] :
                    ( ( Y0 @ Y1 )
                    & ~ ( ?? @ $i
                        @ ^ [Y2: $i] :
                            ( ( Y1 != Y2 )
                            & ( Y0 @ Y2 ) ) ) ) ) ) )
       => ( sK2
          @ ^ [Y0: $i > $o] :
              ( ?? @ $i
              @ ^ [Y1: $i] :
                  ( ( Y0 @ Y1 )
                  & ( ?? @ $i
                    @ ^ [Y2: $i] :
                        ( ( Y1 != Y2 )
                        & ( Y0 @ Y2 )
                        & ~ ( ?? @ $i
                            @ ^ [Y3: $i] :
                                ( ( Y2 != Y3 )
                                & ( Y1 != Y3 )
                                & ( Y0 @ Y3 ) ) ) ) ) ) ) ) ) )
    | ~ spl0_2 ),
    inference(beta_eta_normalization,[status(thm)],[f48]) ).

thf(f48,plain,
    ( ( $false
      = ( ^ [Y0: ( ( $i > $o ) > $o ) > $o] :
            ( ( ( !! @ ( ( $i > $o ) > $o )
                @ ^ [Y1: ( $i > $o ) > $o] :
                    ( ( Y0 @ Y1 )
                   => ( Y0
                      @ ^ [Y2: $i > $o] :
                          ( ?? @ $i
                          @ ^ [Y3: $i] :
                              ( ( Y2 @ Y3 )
                              & ( Y1
                                @ ^ [Y4: $i] :
                                    ( ( Y3 != Y4 )
                                    & ( Y2 @ Y4 ) ) ) ) ) ) ) )
              & ( Y0
                @ ^ [Y1: $i > $o] :
                    ( ?? @ $i
                    @ ^ [Y2: $i] :
                        ( ( Y1 @ Y2 )
                        & ~ ( ?? @ $i
                            @ ^ [Y3: $i] :
                                ( ( Y2 != Y3 )
                                & ( Y1 @ Y3 ) ) ) ) ) ) )
           => ( Y0
              @ ^ [Y1: $i > $o] :
                  ( ?? @ $i
                  @ ^ [Y2: $i] :
                      ( ( Y1 @ Y2 )
                      & ( ?? @ $i
                        @ ^ [Y3: $i] :
                            ( ( Y2 != Y3 )
                            & ( Y1 @ Y3 )
                            & ~ ( ?? @ $i
                                @ ^ [Y4: $i] :
                                    ( ( Y3 != Y4 )
                                    & ( Y2 != Y4 )
                                    & ( Y1 @ Y4 ) ) ) ) ) ) ) ) )
        @ sK2 ) )
    | ~ spl0_2 ),
    inference(sigma_clausification,[status(thm)],[f44]) ).

thf(f44,plain,
    ( ( $false
      = ( !! @ ( ( ( $i > $o ) > $o ) > $o )
        @ ^ [Y0: ( ( $i > $o ) > $o ) > $o] :
            ( ( ( !! @ ( ( $i > $o ) > $o )
                @ ^ [Y1: ( $i > $o ) > $o] :
                    ( ( Y0 @ Y1 )
                   => ( Y0
                      @ ^ [Y2: $i > $o] :
                          ( ?? @ $i
                          @ ^ [Y3: $i] :
                              ( ( Y2 @ Y3 )
                              & ( Y1
                                @ ^ [Y4: $i] :
                                    ( ( Y3 != Y4 )
                                    & ( Y2 @ Y4 ) ) ) ) ) ) ) )
              & ( Y0
                @ ^ [Y1: $i > $o] :
                    ( ?? @ $i
                    @ ^ [Y2: $i] :
                        ( ( Y1 @ Y2 )
                        & ~ ( ?? @ $i
                            @ ^ [Y3: $i] :
                                ( ( Y2 != Y3 )
                                & ( Y1 @ Y3 ) ) ) ) ) ) )
           => ( Y0
              @ ^ [Y1: $i > $o] :
                  ( ?? @ $i
                  @ ^ [Y2: $i] :
                      ( ( Y1 @ Y2 )
                      & ( ?? @ $i
                        @ ^ [Y3: $i] :
                            ( ( Y2 != Y3 )
                            & ( Y1 @ Y3 )
                            & ~ ( ?? @ $i
                                @ ^ [Y4: $i] :
                                    ( ( Y3 != Y4 )
                                    & ( Y2 != Y4 )
                                    & ( Y1 @ Y4 ) ) ) ) ) ) ) ) ) ) )
    | ~ spl0_2 ),
    inference(avatar_component_clause,[status(thm)],[f43]) ).

thf(f43,definition,
    ( spl0_2
  <=> ( $false
      = ( !! @ ( ( ( $i > $o ) > $o ) > $o )
        @ ^ [Y0: ( ( $i > $o ) > $o ) > $o] :
            ( ( ( !! @ ( ( $i > $o ) > $o )
                @ ^ [Y1: ( $i > $o ) > $o] :
                    ( ( Y0 @ Y1 )
                   => ( Y0
                      @ ^ [Y2: $i > $o] :
                          ( ?? @ $i
                          @ ^ [Y3: $i] :
                              ( ( Y2 @ Y3 )
                              & ( Y1
                                @ ^ [Y4: $i] :
                                    ( ( Y3 != Y4 )
                                    & ( Y2 @ Y4 ) ) ) ) ) ) ) )
              & ( Y0
                @ ^ [Y1: $i > $o] :
                    ( ?? @ $i
                    @ ^ [Y2: $i] :
                        ( ( Y1 @ Y2 )
                        & ~ ( ?? @ $i
                            @ ^ [Y3: $i] :
                                ( ( Y2 != Y3 )
                                & ( Y1 @ Y3 ) ) ) ) ) ) )
           => ( Y0
              @ ^ [Y1: $i > $o] :
                  ( ?? @ $i
                  @ ^ [Y2: $i] :
                      ( ( Y1 @ Y2 )
                      & ( ?? @ $i
                        @ ^ [Y3: $i] :
                            ( ( Y2 != Y3 )
                            & ( Y1 @ Y3 )
                            & ~ ( ?? @ $i
                                @ ^ [Y4: $i] :
                                    ( ( Y3 != Y4 )
                                    & ( Y2 != Y4 )
                                    & ( Y1 @ Y4 ) ) ) ) ) ) ) ) ) ) ) ),
    introduced(definition,[new_symbols(naming,[spl0_2])],[avatar_definition]) ).

thf(f69,plain,
    ( ( ( sK2
        @ ^ [Y0: $i > $o] :
            ( ?? @ $i
            @ ^ [Y1: $i] :
                ( ( Y0 @ Y1 )
                & ( ?? @ $i
                  @ ^ [Y2: $i] :
                      ( ( Y1 != Y2 )
                      & ( Y0 @ Y2 )
                      & ~ ( ?? @ $i
                          @ ^ [Y3: $i] :
                              ( ( Y2 != Y3 )
                              & ( Y1 != Y3 )
                              & ( Y0 @ Y3 ) ) ) ) ) ) ) )
      = $true )
    | ~ spl0_2 ),
    inference(boolean_simplification,[status(thm)],[f68]) ).

thf(f68,plain,
    ( ( ( $true
       => ( sK2
          @ ^ [Y0: $i > $o] :
              ( ?? @ $i
              @ ^ [Y1: $i] :
                  ( ( Y0 @ Y1 )
                  & ( ?? @ $i
                    @ ^ [Y2: $i] :
                        ( ( Y1 != Y2 )
                        & ( Y0 @ Y2 )
                        & ~ ( ?? @ $i
                            @ ^ [Y3: $i] :
                                ( ( Y2 != Y3 )
                                & ( Y1 != Y3 )
                                & ( Y0 @ Y3 ) ) ) ) ) ) ) ) )
      = $true )
    | ~ spl0_2 ),
    inference(beta_eta_normalization,[status(thm)],[f66]) ).

thf(f66,plain,
    ( ( ( $true
       => ( sK2
          @ ^ [Y0: $i > $o] :
              ( ?? @ $i
              @ ^ [Y1: $i] :
                  ( ( Y0 @ Y1 )
                  & ( ^ [Y2: $i > $o] :
                        ( ?? @ $i
                        @ ^ [Y3: $i] :
                            ( ( Y2 @ Y3 )
                            & ~ ( ?? @ $i
                                @ ^ [Y4: $i] :
                                    ( ( Y3 != Y4 )
                                    & ( Y2 @ Y4 ) ) ) ) )
                    @ ^ [Y2: $i] :
                        ( ( Y1 != Y2 )
                        & ( Y0 @ Y2 ) ) ) ) ) ) )
      = $true )
    | ~ spl0_2 ),
    inference(superposition,[status(thm)],[f64,f62]) ).

thf(f62,plain,
    ( ( ( sK2
        @ ^ [Y0: $i > $o] :
            ( ?? @ $i
            @ ^ [Y1: $i] :
                ( ( Y0 @ Y1 )
                & ~ ( ?? @ $i
                    @ ^ [Y2: $i] :
                        ( ( Y1 != Y2 )
                        & ( Y0 @ Y2 ) ) ) ) ) )
      = $true )
    | ~ spl0_2 ),
    inference(boolean_simplification,[status(thm)],[f61]) ).

thf(f61,plain,
    ( ( ( $true
        & ( sK2
          @ ^ [Y0: $i > $o] :
              ( ?? @ $i
              @ ^ [Y1: $i] :
                  ( ( Y0 @ Y1 )
                  & ~ ( ?? @ $i
                      @ ^ [Y2: $i] :
                          ( ( Y1 != Y2 )
                          & ( Y0 @ Y2 ) ) ) ) ) ) )
      = $true )
    | ~ spl0_2 ),
    inference(backward_demodulation,[status(thm)],[f54,f60]) ).

thf(f60,plain,
    ( ( ( !! @ ( ( $i > $o ) > $o )
        @ ^ [Y0: ( $i > $o ) > $o] :
            ( ( sK2 @ Y0 )
           => ( sK2
              @ ^ [Y1: $i > $o] :
                  ( ?? @ $i
                  @ ^ [Y2: $i] :
                      ( ( Y1 @ Y2 )
                      & ( Y0
                        @ ^ [Y3: $i] :
                            ( ( Y2 != Y3 )
                            & ( Y1 @ Y3 ) ) ) ) ) ) ) )
      = $true )
    | ~ spl0_2 ),
    inference(binary_proxy_clausification,[status(thm)],[f54]) ).

thf(f54,plain,
    ( ( ( ( !! @ ( ( $i > $o ) > $o )
          @ ^ [Y0: ( $i > $o ) > $o] :
              ( ( sK2 @ Y0 )
             => ( sK2
                @ ^ [Y1: $i > $o] :
                    ( ?? @ $i
                    @ ^ [Y2: $i] :
                        ( ( Y1 @ Y2 )
                        & ( Y0
                          @ ^ [Y3: $i] :
                              ( ( Y2 != Y3 )
                              & ( Y1 @ Y3 ) ) ) ) ) ) ) )
        & ( sK2
          @ ^ [Y0: $i > $o] :
              ( ?? @ $i
              @ ^ [Y1: $i] :
                  ( ( Y0 @ Y1 )
                  & ~ ( ?? @ $i
                      @ ^ [Y2: $i] :
                          ( ( Y1 != Y2 )
                          & ( Y0 @ Y2 ) ) ) ) ) ) )
      = $true )
    | ~ spl0_2 ),
    inference(binary_proxy_clausification,[status(thm)],[f52]) ).

thf(f64,plain,
    ( ! [X1: ( $i > $o ) > $o] :
        ( ( ( sK2 @ X1 )
         => ( sK2
            @ ^ [Y0: $i > $o] :
                ( ?? @ $i
                @ ^ [Y1: $i] :
                    ( ( Y0 @ Y1 )
                    & ( X1
                      @ ^ [Y2: $i] :
                          ( ( Y1 != Y2 )
                          & ( Y0 @ Y2 ) ) ) ) ) ) )
        = $true )
    | ~ spl0_2 ),
    inference(beta_eta_normalization,[status(thm)],[f63]) ).

thf(f63,plain,
    ( ! [X1: ( $i > $o ) > $o] :
        ( ( ^ [Y0: ( $i > $o ) > $o] :
              ( ( sK2 @ Y0 )
             => ( sK2
                @ ^ [Y1: $i > $o] :
                    ( ?? @ $i
                    @ ^ [Y2: $i] :
                        ( ( Y1 @ Y2 )
                        & ( Y0
                          @ ^ [Y3: $i] :
                              ( ( Y2 != Y3 )
                              & ( Y1 @ Y3 ) ) ) ) ) ) )
          @ X1 )
        = $true )
    | ~ spl0_2 ),
    inference(pi_clausification,[status(thm)],[f60]) ).

thf(f45,plain,
    ( spl0_1
    | spl0_2 ),
    inference(avatar_split_clause,[status(thm)],[f38,f43,f40]) ).

thf(f38,plain,
    ( ( $false
      = ( !! @ ( ( ( $i > $o ) > $o ) > $o )
        @ ^ [Y0: ( ( $i > $o ) > $o ) > $o] :
            ( ( ( !! @ ( ( $i > $o ) > $o )
                @ ^ [Y1: ( $i > $o ) > $o] :
                    ( ( Y0 @ Y1 )
                   => ( Y0
                      @ ^ [Y2: $i > $o] :
                          ( ?? @ $i
                          @ ^ [Y3: $i] :
                              ( ( Y2 @ Y3 )
                              & ( Y1
                                @ ^ [Y4: $i] :
                                    ( ( Y3 != Y4 )
                                    & ( Y2 @ Y4 ) ) ) ) ) ) ) )
              & ( Y0
                @ ^ [Y1: $i > $o] :
                    ( ?? @ $i
                    @ ^ [Y2: $i] :
                        ( ( Y1 @ Y2 )
                        & ~ ( ?? @ $i
                            @ ^ [Y3: $i] :
                                ( ( Y2 != Y3 )
                                & ( Y1 @ Y3 ) ) ) ) ) ) )
           => ( Y0
              @ ^ [Y1: $i > $o] :
                  ( ?? @ $i
                  @ ^ [Y2: $i] :
                      ( ( Y1 @ Y2 )
                      & ( ?? @ $i
                        @ ^ [Y3: $i] :
                            ( ( Y2 != Y3 )
                            & ( Y1 @ Y3 )
                            & ~ ( ?? @ $i
                                @ ^ [Y4: $i] :
                                    ( ( Y3 != Y4 )
                                    & ( Y2 != Y4 )
                                    & ( Y1 @ Y4 ) ) ) ) ) ) ) ) ) ) )
    | ( $false
      = ( !! @ ( ( ( $i > $o ) > $o ) > $o )
        @ ^ [Y0: ( ( $i > $o ) > $o ) > $o] :
            ( ( ( !! @ ( ( $i > $o ) > $o )
                @ ^ [Y1: ( $i > $o ) > $o] :
                    ( ( Y0 @ Y1 )
                   => ( Y0
                      @ ^ [Y2: $i > $o] :
                          ( ?? @ $i
                          @ ^ [Y3: $i] :
                              ( ( Y2 @ Y3 )
                              & ( Y1
                                @ ^ [Y4: $i] :
                                    ( ( Y3 != Y4 )
                                    & ( Y2 @ Y4 ) ) ) ) ) ) ) )
              & ( Y0
                @ ^ [Y1: $i > $o] :
                    ~ ( ?? @ $i @ Y1 ) ) )
           => ( Y0
              @ ^ [Y1: $i > $o] :
                  ( ?? @ $i
                  @ ^ [Y2: $i] :
                      ( ( Y1 @ Y2 )
                      & ~ ( ?? @ $i
                          @ ^ [Y3: $i] :
                              ( ( Y2 != Y3 )
                              & ( Y1 @ Y3 ) ) ) ) ) ) ) ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f37]) ).

thf(f37,plain,
    ( ( ( !! @ ( ( ( $i > $o ) > $o ) > $o )
        @ ^ [Y0: ( ( $i > $o ) > $o ) > $o] :
            ( ( ( !! @ ( ( $i > $o ) > $o )
                @ ^ [Y1: ( $i > $o ) > $o] :
                    ( ( Y0 @ Y1 )
                   => ( Y0
                      @ ^ [Y2: $i > $o] :
                          ( ?? @ $i
                          @ ^ [Y3: $i] :
                              ( ( Y2 @ Y3 )
                              & ( Y1
                                @ ^ [Y4: $i] :
                                    ( ( Y3 != Y4 )
                                    & ( Y2 @ Y4 ) ) ) ) ) ) ) )
              & ( Y0
                @ ^ [Y1: $i > $o] :
                    ( ?? @ $i
                    @ ^ [Y2: $i] :
                        ( ( Y1 @ Y2 )
                        & ~ ( ?? @ $i
                            @ ^ [Y3: $i] :
                                ( ( Y2 != Y3 )
                                & ( Y1 @ Y3 ) ) ) ) ) ) )
           => ( Y0
              @ ^ [Y1: $i > $o] :
                  ( ?? @ $i
                  @ ^ [Y2: $i] :
                      ( ( Y1 @ Y2 )
                      & ( ?? @ $i
                        @ ^ [Y3: $i] :
                            ( ( Y2 != Y3 )
                            & ( Y1 @ Y3 )
                            & ~ ( ?? @ $i
                                @ ^ [Y4: $i] :
                                    ( ( Y3 != Y4 )
                                    & ( Y2 != Y4 )
                                    & ( Y1 @ Y4 ) ) ) ) ) ) ) ) ) )
      & ( !! @ ( ( ( $i > $o ) > $o ) > $o )
        @ ^ [Y0: ( ( $i > $o ) > $o ) > $o] :
            ( ( ( !! @ ( ( $i > $o ) > $o )
                @ ^ [Y1: ( $i > $o ) > $o] :
                    ( ( Y0 @ Y1 )
                   => ( Y0
                      @ ^ [Y2: $i > $o] :
                          ( ?? @ $i
                          @ ^ [Y3: $i] :
                              ( ( Y2 @ Y3 )
                              & ( Y1
                                @ ^ [Y4: $i] :
                                    ( ( Y3 != Y4 )
                                    & ( Y2 @ Y4 ) ) ) ) ) ) ) )
              & ( Y0
                @ ^ [Y1: $i > $o] :
                    ~ ( ?? @ $i @ Y1 ) ) )
           => ( Y0
              @ ^ [Y1: $i > $o] :
                  ( ?? @ $i
                  @ ^ [Y2: $i] :
                      ( ( Y1 @ Y2 )
                      & ~ ( ?? @ $i
                          @ ^ [Y3: $i] :
                              ( ( Y2 != Y3 )
                              & ( Y1 @ Y3 ) ) ) ) ) ) ) ) )
    = $false ),
    inference(boolean_simplification,[status(thm)],[f36]) ).

thf(f36,plain,
    ( $false
    = ( ( !! @ ( ( ( $i > $o ) > $o ) > $o )
        @ ^ [Y0: ( ( $i > $o ) > $o ) > $o] :
            ( ( ( !! @ ( ( $i > $o ) > $o )
                @ ^ [Y1: ( $i > $o ) > $o] :
                    ( ( Y0 @ Y1 )
                   => ( Y0
                      @ ^ [Y2: $i > $o] :
                          ( ?? @ $i
                          @ ^ [Y3: $i] :
                              ( ( Y2 @ Y3 )
                              & ( Y1
                                @ ^ [Y4: $i] :
                                    ( ( Y3 != Y4 )
                                    & ( Y2 @ Y4 ) ) ) ) ) ) ) )
              & ( Y0
                @ ^ [Y1: $i > $o] :
                    ( ?? @ $i
                    @ ^ [Y2: $i] :
                        ( ( Y1 @ Y2 )
                        & ~ ( ?? @ $i
                            @ ^ [Y3: $i] :
                                ( ( Y2 != Y3 )
                                & ( Y1 @ Y3 ) ) ) ) ) ) )
           => ( Y0
              @ ^ [Y1: $i > $o] :
                  ( ?? @ $i
                  @ ^ [Y2: $i] :
                      ( ( Y1 @ Y2 )
                      & ( ?? @ $i
                        @ ^ [Y3: $i] :
                            ( ( Y2 != Y3 )
                            & ( Y1 @ Y3 )
                            & ~ ( ?? @ $i
                                @ ^ [Y4: $i] :
                                    ( ( Y3 != Y4 )
                                    & ( Y2 != Y4 )
                                    & ( Y1 @ Y4 ) ) ) ) ) ) ) ) ) )
      & $true
      & ( !! @ ( ( ( $i > $o ) > $o ) > $o )
        @ ^ [Y0: ( ( $i > $o ) > $o ) > $o] :
            ( ( ( !! @ ( ( $i > $o ) > $o )
                @ ^ [Y1: ( $i > $o ) > $o] :
                    ( ( Y0 @ Y1 )
                   => ( Y0
                      @ ^ [Y2: $i > $o] :
                          ( ?? @ $i
                          @ ^ [Y3: $i] :
                              ( ( Y2 @ Y3 )
                              & ( Y1
                                @ ^ [Y4: $i] :
                                    ( ( Y3 != Y4 )
                                    & ( Y2 @ Y4 ) ) ) ) ) ) ) )
              & ( Y0
                @ ^ [Y1: $i > $o] :
                    ~ ( ?? @ $i @ Y1 ) ) )
           => ( Y0
              @ ^ [Y1: $i > $o] :
                  ( ?? @ $i
                  @ ^ [Y2: $i] :
                      ( ( Y1 @ Y2 )
                      & ~ ( ?? @ $i
                          @ ^ [Y3: $i] :
                              ( ( Y2 != Y3 )
                              & ( Y1 @ Y3 ) ) ) ) ) ) ) ) ) ),
    inference(superposition,[status(thm)],[f34,f30]) ).

thf(f30,plain,
    ( ( cP
      @ ^ [Y0: $i > $o] :
          ( ?? @ $i
          @ ^ [Y1: $i] :
              ( ( Y0 @ Y1 )
              & ~ ( ?? @ $i
                  @ ^ [Y2: $i] :
                      ( ( Y1 != Y2 )
                      & ( Y0 @ Y2 ) ) ) ) ) )
    = $true ),
    inference(binary_proxy_clausification,[status(thm)],[f26]) ).

thf(f26,plain,
    ( $false
    = ( ( cP
        @ ^ [Y0: $i > $o] :
            ( ?? @ $i
            @ ^ [Y1: $i] :
                ( ( Y0 @ Y1 )
                & ~ ( ?? @ $i
                    @ ^ [Y2: $i] :
                        ( ( Y1 != Y2 )
                        & ( Y0 @ Y2 ) ) ) ) ) )
     => ( ?? @ ( ( $i > $o ) > $o )
        @ ^ [Y0: ( $i > $o ) > $o] :
            ( ( !! @ ( ( ( $i > $o ) > $o ) > $o )
              @ ^ [Y1: ( ( $i > $o ) > $o ) > $o] :
                  ( ( ( !! @ ( ( $i > $o ) > $o )
                      @ ^ [Y2: ( $i > $o ) > $o] :
                          ( ( Y1 @ Y2 )
                         => ( Y1
                            @ ^ [Y3: $i > $o] :
                                ( ?? @ $i
                                @ ^ [Y4: $i] :
                                    ( ( Y3 @ Y4 )
                                    & ( Y2
                                      @ ^ [Y5: $i] :
                                          ( ( Y4 != Y5 )
                                          & ( Y3 @ Y5 ) ) ) ) ) ) ) )
                    & ( Y1 @ Y0 ) )
                 => ( Y1
                    @ ^ [Y2: $i > $o] :
                        ( ?? @ $i
                        @ ^ [Y3: $i] :
                            ( ( Y2 @ Y3 )
                            & ( ?? @ $i
                              @ ^ [Y4: $i] :
                                  ( ( Y3 != Y4 )
                                  & ( Y2 @ Y4 )
                                  & ~ ( ?? @ $i
                                      @ ^ [Y5: $i] :
                                          ( ( Y4 != Y5 )
                                          & ( Y3 != Y5 )
                                          & ( Y2 @ Y5 ) ) ) ) ) ) ) ) ) )
            & ( cP @ Y0 )
            & ( !! @ ( ( ( $i > $o ) > $o ) > $o )
              @ ^ [Y1: ( ( $i > $o ) > $o ) > $o] :
                  ( ( ( !! @ ( ( $i > $o ) > $o )
                      @ ^ [Y2: ( $i > $o ) > $o] :
                          ( ( Y1 @ Y2 )
                         => ( Y1
                            @ ^ [Y3: $i > $o] :
                                ( ?? @ $i
                                @ ^ [Y4: $i] :
                                    ( ( Y3 @ Y4 )
                                    & ( Y2
                                      @ ^ [Y5: $i] :
                                          ( ( Y4 != Y5 )
                                          & ( Y3 @ Y5 ) ) ) ) ) ) ) )
                    & ( Y1
                      @ ^ [Y2: $i > $o] :
                          ~ ( ?? @ $i @ Y2 ) ) )
                 => ( Y1 @ Y0 ) ) ) ) ) ) ),
    inference(not_proxy_clausification,[status(thm)],[f25]) ).

thf(f25,plain,
    ( ( ~ ( ( cP
            @ ^ [Y0: $i > $o] :
                ( ?? @ $i
                @ ^ [Y1: $i] :
                    ( ( Y0 @ Y1 )
                    & ~ ( ?? @ $i
                        @ ^ [Y2: $i] :
                            ( ( Y1 != Y2 )
                            & ( Y0 @ Y2 ) ) ) ) ) )
         => ( ?? @ ( ( $i > $o ) > $o )
            @ ^ [Y0: ( $i > $o ) > $o] :
                ( ( !! @ ( ( ( $i > $o ) > $o ) > $o )
                  @ ^ [Y1: ( ( $i > $o ) > $o ) > $o] :
                      ( ( ( !! @ ( ( $i > $o ) > $o )
                          @ ^ [Y2: ( $i > $o ) > $o] :
                              ( ( Y1 @ Y2 )
                             => ( Y1
                                @ ^ [Y3: $i > $o] :
                                    ( ?? @ $i
                                    @ ^ [Y4: $i] :
                                        ( ( Y3 @ Y4 )
                                        & ( Y2
                                          @ ^ [Y5: $i] :
                                              ( ( Y4 != Y5 )
                                              & ( Y3 @ Y5 ) ) ) ) ) ) ) )
                        & ( Y1 @ Y0 ) )
                     => ( Y1
                        @ ^ [Y2: $i > $o] :
                            ( ?? @ $i
                            @ ^ [Y3: $i] :
                                ( ( Y2 @ Y3 )
                                & ( ?? @ $i
                                  @ ^ [Y4: $i] :
                                      ( ( Y3 != Y4 )
                                      & ( Y2 @ Y4 )
                                      & ~ ( ?? @ $i
                                          @ ^ [Y5: $i] :
                                              ( ( Y4 != Y5 )
                                              & ( Y3 != Y5 )
                                              & ( Y2 @ Y5 ) ) ) ) ) ) ) ) ) )
                & ( cP @ Y0 )
                & ( !! @ ( ( ( $i > $o ) > $o ) > $o )
                  @ ^ [Y1: ( ( $i > $o ) > $o ) > $o] :
                      ( ( ( !! @ ( ( $i > $o ) > $o )
                          @ ^ [Y2: ( $i > $o ) > $o] :
                              ( ( Y1 @ Y2 )
                             => ( Y1
                                @ ^ [Y3: $i > $o] :
                                    ( ?? @ $i
                                    @ ^ [Y4: $i] :
                                        ( ( Y3 @ Y4 )
                                        & ( Y2
                                          @ ^ [Y5: $i] :
                                              ( ( Y4 != Y5 )
                                              & ( Y3 @ Y5 ) ) ) ) ) ) ) )
                        & ( Y1
                          @ ^ [Y2: $i > $o] :
                              ~ ( ?? @ $i @ Y2 ) ) )
                     => ( Y1 @ Y0 ) ) ) ) ) ) )
    = $true ),
    inference(beta_eta_normalization,[status(thm)],[f24]) ).

thf(f24,plain,
    ( ( ~ ( ( cP
            @ ( ^ [Y0: ( $i > $o ) > $o,Y1: $i > $o] :
                  ( ?? @ $i
                  @ ^ [Y2: $i] :
                      ( ( Y1 @ Y2 )
                      & ( Y0
                        @ ^ [Y3: $i] :
                            ( ( Y2 != Y3 )
                            & ( Y1 @ Y3 ) ) ) ) )
              @ ^ [Y0: $i > $o] :
                  ~ ( ?? @ $i
                    @ ^ [Y1: $i] : ( Y0 @ Y1 ) ) ) )
         => ( ?? @ ( ( $i > $o ) > $o )
            @ ^ [Y0: ( $i > $o ) > $o] :
                ( ( ^ [Y1: ( $i > $o ) > $o,Y2: ( $i > $o ) > $o] :
                      ( !! @ ( ( ( $i > $o ) > $o ) > $o )
                      @ ^ [Y3: ( ( $i > $o ) > $o ) > $o] :
                          ( ( ( !! @ ( ( $i > $o ) > $o )
                              @ ^ [Y4: ( $i > $o ) > $o] :
                                  ( ( Y3 @ Y4 )
                                 => ( Y3
                                    @ ( ^ [Y5: ( $i > $o ) > $o,Y6: $i > $o] :
                                          ( ?? @ $i
                                          @ ^ [Y7: $i] :
                                              ( ( Y6 @ Y7 )
                                              & ( Y5
                                                @ ^ [Y8: $i] :
                                                    ( ( Y7 != Y8 )
                                                    & ( Y6 @ Y8 ) ) ) ) )
                                      @ Y4 ) ) ) )
                            & ( Y3 @ Y1 ) )
                         => ( Y3 @ Y2 ) ) )
                  @ Y0
                  @ ( ^ [Y1: ( $i > $o ) > $o,Y2: $i > $o] :
                        ( ?? @ $i
                        @ ^ [Y3: $i] :
                            ( ( Y2 @ Y3 )
                            & ( Y1
                              @ ^ [Y4: $i] :
                                  ( ( Y3 != Y4 )
                                  & ( Y2 @ Y4 ) ) ) ) )
                    @ ( ^ [Y1: ( $i > $o ) > $o,Y2: $i > $o] :
                          ( ?? @ $i
                          @ ^ [Y3: $i] :
                              ( ( Y2 @ Y3 )
                              & ( Y1
                                @ ^ [Y4: $i] :
                                    ( ( Y3 != Y4 )
                                    & ( Y2 @ Y4 ) ) ) ) )
                      @ ^ [Y1: $i > $o] :
                          ~ ( ?? @ $i
                            @ ^ [Y2: $i] : ( Y1 @ Y2 ) ) ) ) )
                & ( cP @ Y0 )
                & ( ^ [Y1: ( $i > $o ) > $o,Y2: ( $i > $o ) > $o] :
                      ( !! @ ( ( ( $i > $o ) > $o ) > $o )
                      @ ^ [Y3: ( ( $i > $o ) > $o ) > $o] :
                          ( ( ( !! @ ( ( $i > $o ) > $o )
                              @ ^ [Y4: ( $i > $o ) > $o] :
                                  ( ( Y3 @ Y4 )
                                 => ( Y3
                                    @ ( ^ [Y5: ( $i > $o ) > $o,Y6: $i > $o] :
                                          ( ?? @ $i
                                          @ ^ [Y7: $i] :
                                              ( ( Y6 @ Y7 )
                                              & ( Y5
                                                @ ^ [Y8: $i] :
                                                    ( ( Y7 != Y8 )
                                                    & ( Y6 @ Y8 ) ) ) ) )
                                      @ Y4 ) ) ) )
                            & ( Y3 @ Y1 ) )
                         => ( Y3 @ Y2 ) ) )
                  @ ^ [Y1: $i > $o] :
                      ~ ( ?? @ $i
                        @ ^ [Y2: $i] : ( Y1 @ Y2 ) )
                  @ Y0 ) ) ) ) )
    = $true ),
    inference(definition_unfolding,[status(thm)],[f21,f22,f23,f17,f22,f23,f18]) ).

thf(f18,plain,
    ( cZERO
    = ( ^ [Y0: $i > $o] :
          ~ ( ?? @ $i
            @ ^ [Y1: $i] : ( Y0 @ Y1 ) ) ) ),
    inference(cnf_transformation,[status(thm)],[f9]) ).

thf(f9,plain,
    ( cZERO
    = ( ^ [Y0: $i > $o] :
          ~ ( ?? @ $i
            @ ^ [Y1: $i] : ( Y0 @ Y1 ) ) ) ),
    inference(fool_elimination,[status(thm)],[f8]) ).

thf(f8,plain,
    ( cZERO
    = ( ^ [X0: $i > $o] :
          ~ ? [X1: $i] : ( X0 @ X1 ) ) ),
    inference(rectify,[status(thm)],[f1]) ).

thf(f1,axiom,
    ( cZERO
    = ( ^ [X0: $i > $o] :
          ~ ? [X1: $i] : ( X0 @ X1 ) ) ),
    file('/export/starexec/sandbox2/tmp/tmp.hwPzrCpAh2/DTF2THF_4661.p',cZERO_def) ).

thf(f17,plain,
    ( cSUCC
    = ( ^ [Y0: ( $i > $o ) > $o,Y1: $i > $o] :
          ( ?? @ $i
          @ ^ [Y2: $i] :
              ( ( Y1 @ Y2 )
              & ( Y0
                @ ^ [Y3: $i] :
                    ( ( Y2 != Y3 )
                    & ( Y1 @ Y3 ) ) ) ) ) ) ),
    inference(cnf_transformation,[status(thm)],[f16]) ).

thf(f16,plain,
    ( cSUCC
    = ( ^ [Y0: ( $i > $o ) > $o,Y1: $i > $o] :
          ( ?? @ $i
          @ ^ [Y2: $i] :
              ( ( Y1 @ Y2 )
              & ( Y0
                @ ^ [Y3: $i] :
                    ( ( Y2 != Y3 )
                    & ( Y1 @ Y3 ) ) ) ) ) ) ),
    inference(fool_elimination,[status(thm)],[f15]) ).

thf(f15,plain,
    ( cSUCC
    = ( ^ [X0: ( $i > $o ) > $o,X1: $i > $o] :
        ? [X2: $i] :
          ( ( X0
            @ ^ [X3: $i] :
                ( ( X1 @ X3 )
                & ( X2 != X3 ) ) )
          & ( X1 @ X2 ) ) ) ),
    inference(rectify,[status(thm)],[f2]) ).

thf(f2,axiom,
    ( cSUCC
    = ( ^ [X2: ( $i > $o ) > $o,X0: $i > $o] :
        ? [X1: $i] :
          ( ( X2
            @ ^ [X3: $i] :
                ( ( X0 @ X3 )
                & ( X1 != X3 ) ) )
          & ( X0 @ X1 ) ) ) ),
    file('/export/starexec/sandbox2/tmp/tmp.hwPzrCpAh2/DTF2THF_4661.p',cSUCC_def) ).

thf(f23,plain,
    ( c_less__eq_
    = ( ^ [Y0: ( $i > $o ) > $o,Y1: ( $i > $o ) > $o] :
          ( !! @ ( ( ( $i > $o ) > $o ) > $o )
          @ ^ [Y2: ( ( $i > $o ) > $o ) > $o] :
              ( ( ( !! @ ( ( $i > $o ) > $o )
                  @ ^ [Y3: ( $i > $o ) > $o] :
                      ( ( Y2 @ Y3 )
                     => ( Y2
                        @ ( ^ [Y4: ( $i > $o ) > $o,Y5: $i > $o] :
                              ( ?? @ $i
                              @ ^ [Y6: $i] :
                                  ( ( Y5 @ Y6 )
                                  & ( Y4
                                    @ ^ [Y7: $i] :
                                        ( ( Y6 != Y7 )
                                        & ( Y5 @ Y7 ) ) ) ) )
                          @ Y3 ) ) ) )
                & ( Y2 @ Y0 ) )
             => ( Y2 @ Y1 ) ) ) ) ),
    inference(definition_unfolding,[status(thm)],[f19,f17]) ).

thf(f19,plain,
    ( c_less__eq_
    = ( ^ [Y0: ( $i > $o ) > $o,Y1: ( $i > $o ) > $o] :
          ( !! @ ( ( ( $i > $o ) > $o ) > $o )
          @ ^ [Y2: ( ( $i > $o ) > $o ) > $o] :
              ( ( ( !! @ ( ( $i > $o ) > $o )
                  @ ^ [Y3: ( $i > $o ) > $o] :
                      ( ( Y2 @ Y3 )
                     => ( Y2 @ ( cSUCC @ Y3 ) ) ) )
                & ( Y2 @ Y0 ) )
             => ( Y2 @ Y1 ) ) ) ) ),
    inference(cnf_transformation,[status(thm)],[f14]) ).

thf(f14,plain,
    ( c_less__eq_
    = ( ^ [Y0: ( $i > $o ) > $o,Y1: ( $i > $o ) > $o] :
          ( !! @ ( ( ( $i > $o ) > $o ) > $o )
          @ ^ [Y2: ( ( $i > $o ) > $o ) > $o] :
              ( ( ( !! @ ( ( $i > $o ) > $o )
                  @ ^ [Y3: ( $i > $o ) > $o] :
                      ( ( Y2 @ Y3 )
                     => ( Y2 @ ( cSUCC @ Y3 ) ) ) )
                & ( Y2 @ Y0 ) )
             => ( Y2 @ Y1 ) ) ) ) ),
    inference(fool_elimination,[status(thm)],[f13]) ).

thf(f13,plain,
    ( c_less__eq_
    = ( ^ [X0: ( $i > $o ) > $o,X1: ( $i > $o ) > $o] :
        ! [X2: ( ( $i > $o ) > $o ) > $o] :
          ( ( ( X2 @ X0 )
            & ! [X3: ( $i > $o ) > $o] :
                ( ( X2 @ X3 )
               => ( X2 @ ( cSUCC @ X3 ) ) ) )
         => ( X2 @ X1 ) ) ) ),
    inference(rectify,[status(thm)],[f4]) ).

thf(f4,axiom,
    ( c_less__eq_
    = ( ^ [X1: ( $i > $o ) > $o,X4: ( $i > $o ) > $o] :
        ! [X0: ( ( $i > $o ) > $o ) > $o] :
          ( ( ( X0 @ X1 )
            & ! [X5: ( $i > $o ) > $o] :
                ( ( X0 @ X5 )
               => ( X0 @ ( cSUCC @ X5 ) ) ) )
         => ( X0 @ X4 ) ) ) ),
    file('/export/starexec/sandbox2/tmp/tmp.hwPzrCpAh2/DTF2THF_4661.p',c_less__eq__def) ).

thf(f22,plain,
    ( cONE
    = ( ^ [Y0: ( $i > $o ) > $o,Y1: $i > $o] :
          ( ?? @ $i
          @ ^ [Y2: $i] :
              ( ( Y1 @ Y2 )
              & ( Y0
                @ ^ [Y3: $i] :
                    ( ( Y2 != Y3 )
                    & ( Y1 @ Y3 ) ) ) ) )
      @ ^ [Y0: $i > $o] :
          ~ ( ?? @ $i
            @ ^ [Y1: $i] : ( Y0 @ Y1 ) ) ) ),
    inference(definition_unfolding,[status(thm)],[f20,f17,f18]) ).

thf(f20,plain,
    ( cONE
    = ( cSUCC @ cZERO ) ),
    inference(cnf_transformation,[status(thm)],[f10]) ).

thf(f10,plain,
    ( cONE
    = ( cSUCC @ cZERO ) ),
    inference(fool_elimination,[status(thm)],[f3]) ).

thf(f3,axiom,
    ( cONE
    = ( cSUCC @ cZERO ) ),
    file('/export/starexec/sandbox2/tmp/tmp.hwPzrCpAh2/DTF2THF_4661.p',cONE_def) ).

thf(f21,plain,
    ( ( ~ ( ( cP @ cONE )
         => ( ?? @ ( ( $i > $o ) > $o )
            @ ^ [Y0: ( $i > $o ) > $o] :
                ( ( c_less__eq_ @ Y0 @ ( cSUCC @ cONE ) )
                & ( cP @ Y0 )
                & ( c_less__eq_ @ cZERO @ Y0 ) ) ) ) )
    = $true ),
    inference(cnf_transformation,[status(thm)],[f12]) ).

thf(f12,plain,
    ( ( ~ ( ( cP @ cONE )
         => ( ?? @ ( ( $i > $o ) > $o )
            @ ^ [Y0: ( $i > $o ) > $o] :
                ( ( c_less__eq_ @ Y0 @ ( cSUCC @ cONE ) )
                & ( cP @ Y0 )
                & ( c_less__eq_ @ cZERO @ Y0 ) ) ) ) )
    = $true ),
    inference(fool_elimination,[status(thm)],[f11]) ).

thf(f11,plain,
    ~ ( ( cP @ cONE )
     => ? [X0: ( $i > $o ) > $o] :
          ( ( c_less__eq_ @ cZERO @ X0 )
          & ( cP @ X0 )
          & ( c_less__eq_ @ X0 @ ( cSUCC @ cONE ) ) ) ),
    inference(rectify,[status(thm)],[f6]) ).

thf(f6,negated_conjecture,
    ~ ( ( cP @ cONE )
     => ? [X1: ( $i > $o ) > $o] :
          ( ( c_less__eq_ @ cZERO @ X1 )
          & ( cP @ X1 )
          & ( c_less__eq_ @ X1 @ ( cSUCC @ cONE ) ) ) ),
    inference(negated_conjecture,[status(cth)],[f5]) ).

thf(f5,conjecture,
    ( ( cP @ cONE )
   => ? [X1: ( $i > $o ) > $o] :
        ( ( c_less__eq_ @ cZERO @ X1 )
        & ( cP @ X1 )
        & ( c_less__eq_ @ X1 @ ( cSUCC @ cONE ) ) ) ),
    file('/export/starexec/sandbox2/tmp/tmp.hwPzrCpAh2/DTF2THF_4661.p',cBLEDSOE7A) ).

thf(f34,plain,
    ! [X1: ( $i > $o ) > $o] :
      ( $false
      = ( ( !! @ ( ( ( $i > $o ) > $o ) > $o )
          @ ^ [Y0: ( ( $i > $o ) > $o ) > $o] :
              ( ( ( !! @ ( ( $i > $o ) > $o )
                  @ ^ [Y1: ( $i > $o ) > $o] :
                      ( ( Y0 @ Y1 )
                     => ( Y0
                        @ ^ [Y2: $i > $o] :
                            ( ?? @ $i
                            @ ^ [Y3: $i] :
                                ( ( Y2 @ Y3 )
                                & ( Y1
                                  @ ^ [Y4: $i] :
                                      ( ( Y3 != Y4 )
                                      & ( Y2 @ Y4 ) ) ) ) ) ) ) )
                & ( Y0 @ X1 ) )
             => ( Y0
                @ ^ [Y1: $i > $o] :
                    ( ?? @ $i
                    @ ^ [Y2: $i] :
                        ( ( Y1 @ Y2 )
                        & ( ?? @ $i
                          @ ^ [Y3: $i] :
                              ( ( Y2 != Y3 )
                              & ( Y1 @ Y3 )
                              & ~ ( ?? @ $i
                                  @ ^ [Y4: $i] :
                                      ( ( Y3 != Y4 )
                                      & ( Y2 != Y4 )
                                      & ( Y1 @ Y4 ) ) ) ) ) ) ) ) ) )
        & ( cP @ X1 )
        & ( !! @ ( ( ( $i > $o ) > $o ) > $o )
          @ ^ [Y0: ( ( $i > $o ) > $o ) > $o] :
              ( ( ( !! @ ( ( $i > $o ) > $o )
                  @ ^ [Y1: ( $i > $o ) > $o] :
                      ( ( Y0 @ Y1 )
                     => ( Y0
                        @ ^ [Y2: $i > $o] :
                            ( ?? @ $i
                            @ ^ [Y3: $i] :
                                ( ( Y2 @ Y3 )
                                & ( Y1
                                  @ ^ [Y4: $i] :
                                      ( ( Y3 != Y4 )
                                      & ( Y2 @ Y4 ) ) ) ) ) ) ) )
                & ( Y0
                  @ ^ [Y1: $i > $o] :
                      ~ ( ?? @ $i @ Y1 ) ) )
             => ( Y0 @ X1 ) ) ) ) ),
    inference(beta_eta_normalization,[status(thm)],[f33]) ).

thf(f33,plain,
    ! [X1: ( $i > $o ) > $o] :
      ( ( ^ [Y0: ( $i > $o ) > $o] :
            ( ( !! @ ( ( ( $i > $o ) > $o ) > $o )
              @ ^ [Y1: ( ( $i > $o ) > $o ) > $o] :
                  ( ( ( !! @ ( ( $i > $o ) > $o )
                      @ ^ [Y2: ( $i > $o ) > $o] :
                          ( ( Y1 @ Y2 )
                         => ( Y1
                            @ ^ [Y3: $i > $o] :
                                ( ?? @ $i
                                @ ^ [Y4: $i] :
                                    ( ( Y3 @ Y4 )
                                    & ( Y2
                                      @ ^ [Y5: $i] :
                                          ( ( Y4 != Y5 )
                                          & ( Y3 @ Y5 ) ) ) ) ) ) ) )
                    & ( Y1 @ Y0 ) )
                 => ( Y1
                    @ ^ [Y2: $i > $o] :
                        ( ?? @ $i
                        @ ^ [Y3: $i] :
                            ( ( Y2 @ Y3 )
                            & ( ?? @ $i
                              @ ^ [Y4: $i] :
                                  ( ( Y3 != Y4 )
                                  & ( Y2 @ Y4 )
                                  & ~ ( ?? @ $i
                                      @ ^ [Y5: $i] :
                                          ( ( Y4 != Y5 )
                                          & ( Y3 != Y5 )
                                          & ( Y2 @ Y5 ) ) ) ) ) ) ) ) ) )
            & ( cP @ Y0 )
            & ( !! @ ( ( ( $i > $o ) > $o ) > $o )
              @ ^ [Y1: ( ( $i > $o ) > $o ) > $o] :
                  ( ( ( !! @ ( ( $i > $o ) > $o )
                      @ ^ [Y2: ( $i > $o ) > $o] :
                          ( ( Y1 @ Y2 )
                         => ( Y1
                            @ ^ [Y3: $i > $o] :
                                ( ?? @ $i
                                @ ^ [Y4: $i] :
                                    ( ( Y3 @ Y4 )
                                    & ( Y2
                                      @ ^ [Y5: $i] :
                                          ( ( Y4 != Y5 )
                                          & ( Y3 @ Y5 ) ) ) ) ) ) ) )
                    & ( Y1
                      @ ^ [Y2: $i > $o] :
                          ~ ( ?? @ $i @ Y2 ) ) )
                 => ( Y1 @ Y0 ) ) ) )
        @ X1 )
      = $false ),
    inference(pi_clausification,[status(thm)],[f32]) ).

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

thf(f31,plain,
    ( $false
    = ( $true
     => ( ?? @ ( ( $i > $o ) > $o )
        @ ^ [Y0: ( $i > $o ) > $o] :
            ( ( !! @ ( ( ( $i > $o ) > $o ) > $o )
              @ ^ [Y1: ( ( $i > $o ) > $o ) > $o] :
                  ( ( ( !! @ ( ( $i > $o ) > $o )
                      @ ^ [Y2: ( $i > $o ) > $o] :
                          ( ( Y1 @ Y2 )
                         => ( Y1
                            @ ^ [Y3: $i > $o] :
                                ( ?? @ $i
                                @ ^ [Y4: $i] :
                                    ( ( Y3 @ Y4 )
                                    & ( Y2
                                      @ ^ [Y5: $i] :
                                          ( ( Y4 != Y5 )
                                          & ( Y3 @ Y5 ) ) ) ) ) ) ) )
                    & ( Y1 @ Y0 ) )
                 => ( Y1
                    @ ^ [Y2: $i > $o] :
                        ( ?? @ $i
                        @ ^ [Y3: $i] :
                            ( ( Y2 @ Y3 )
                            & ( ?? @ $i
                              @ ^ [Y4: $i] :
                                  ( ( Y3 != Y4 )
                                  & ( Y2 @ Y4 )
                                  & ~ ( ?? @ $i
                                      @ ^ [Y5: $i] :
                                          ( ( Y4 != Y5 )
                                          & ( Y3 != Y5 )
                                          & ( Y2 @ Y5 ) ) ) ) ) ) ) ) ) )
            & ( cP @ Y0 )
            & ( !! @ ( ( ( $i > $o ) > $o ) > $o )
              @ ^ [Y1: ( ( $i > $o ) > $o ) > $o] :
                  ( ( ( !! @ ( ( $i > $o ) > $o )
                      @ ^ [Y2: ( $i > $o ) > $o] :
                          ( ( Y1 @ Y2 )
                         => ( Y1
                            @ ^ [Y3: $i > $o] :
                                ( ?? @ $i
                                @ ^ [Y4: $i] :
                                    ( ( Y3 @ Y4 )
                                    & ( Y2
                                      @ ^ [Y5: $i] :
                                          ( ( Y4 != Y5 )
                                          & ( Y3 @ Y5 ) ) ) ) ) ) ) )
                    & ( Y1
                      @ ^ [Y2: $i > $o] :
                          ~ ( ?? @ $i @ Y2 ) ) )
                 => ( Y1 @ Y0 ) ) ) ) ) ) ),
    inference(backward_demodulation,[status(thm)],[f26,f30]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.11  % Problem  : SEV292^5 : TPTP v9.2.1. Bugfixed v6.2.0.
% 0.00/0.12  % Command  : /export/starexec/sandbox2/solver/bin/run_DT2H2X /export/starexec/sandbox2/benchmark/theBenchmark.p 300
% 0.15/0.32  % Computer : n018.cluster.edu
% 0.15/0.32  % Model    : x86_64 x86_64
% 0.15/0.32  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.15/0.32  % Memory   : 8042.1875MB
% 0.15/0.32  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.15/0.32  % CPULimit : 300
% 0.15/0.32  % WCLimit  : 300
% 0.15/0.32  % DateTime : Tue Feb 24 12:43:01 EST 2026
% 0.15/0.32  % CPUTime  : 
% 0.15/0.32  Running /export/starexec/sandbox2/solver/bin/run_DT2H2X /export/starexec/sandbox2/benchmark/theBenchmark.p 300
% 0.23/0.44  ---- Original DTF file ---
% 0.23/0.44  thf(spec,logic,$$dhol).
% 0.23/0.44  %------------------------------------------------------------------------------
% 0.23/0.44  % File     : SEV292^5 : TPTP v9.2.1. Bugfixed v6.2.0.
% 0.23/0.44  % Domain   : Set Theory
% 0.23/0.44  % Problem  : TPS problem BLEDSOE7A
% 0.23/0.44  % Version  : Especial.
% 0.23/0.44  % English  :
% 0.23/0.44  
% 0.23/0.44  % Refs     : [BF93]  Bledsoe & Feng (1993), SET-VAR
% 0.23/0.44  %          : [Bro09] Brown (2009), Email to Geoff Sutcliffe
% 0.23/0.44  % Source   : [Bro09]
% 0.23/0.44  % Names    : tps_0340 [Bro09]
% 0.23/0.44  %          : BLEDSOE7A [TPS]
% 0.23/0.44  
% 0.23/0.44  % Status   : Theorem
% 0.23/0.44  % Rating   : 0.22 v9.1.0, 0.12 v9.0.0, 0.30 v8.2.0, 0.54 v8.1.0, 0.45 v7.5.0, 0.14 v7.4.0, 0.22 v7.2.0, 0.25 v7.0.0, 0.14 v6.4.0, 0.17 v6.3.0, 0.20 v6.2.0
% 0.23/0.44  % Syntax   : Number of formulae    :   10 (   4 unt;   5 typ;   4 def)
% 0.23/0.44  %            Number of atoms       :   20 (   5 equ;   0 cnn)
% 0.23/0.44  %            Maximal formula atoms :    8 (   4 avg)
% 0.23/0.44  %            Number of connectives :   27 (   2   ~;   0   |;   5   &;  17   @)
% 0.23/0.44  %                                         (   0 <=>;   3  =>;   0  <=;   0 <~>)
% 0.23/0.44  %            Maximal formula depth :    7 (   2 avg)
% 0.23/0.44  %            Number of types       :    2 (   0 usr)
% 0.23/0.44  %            Number of type conns  :   33 (  33   >;   0   *;   0   +;   0  <<)
% 0.23/0.44  %            Number of symbols     :    6 (   5 usr;   0 con; 1-2 aty)
% 0.23/0.44  %            Number of variables   :   11 (   6   ^;   2   !;   3   ?;  11   :)
% 0.23/0.44  % SPC      : TH0_THM_EQU_NAR
% 0.23/0.44  
% 0.23/0.44  % Comments : This problem is from the TPS library. Copyright (c) 2009 The TPS
% 0.23/0.44  %            project in the Department of Mathematical Sciences at Carnegie
% 0.23/0.44  %            Mellon University. Distributed under the Creative Commons copyleft
% 0.23/0.44  %            license: http://creativecommons.org/licenses/by-sa/3.0/
% 0.23/0.44  % Bugfixes : v5.2.0 - Added missing type declarations.
% 0.23/0.44  %          : v6.2.0 - Reordered definitions.
% 0.23/0.44  %------------------------------------------------------------------------------
% 0.23/0.44  thf(cP_type,type,
% 0.23/0.44      cP: ( ( $i > $o ) > $o ) > $o ).
% 0.23/0.44  
% 0.23/0.44  thf(cONE_type,type,
% 0.23/0.44      cONE: ( $i > $o ) > $o ).
% 0.23/0.44  
% 0.23/0.44  thf(cSUCC_type,type,
% 0.23/0.44      cSUCC: ( ( $i > $o ) > $o ) > ( $i > $o ) > $o ).
% 0.23/0.44  
% 0.23/0.44  thf(cZERO_type,type,
% 0.23/0.44      cZERO: ( $i > $o ) > $o ).
% 0.23/0.44  
% 0.23/0.44  thf(c_less__eq__type,type,
% 0.23/0.44      c_less__eq_: ( ( $i > $o ) > $o ) > ( ( $i > $o ) > $o ) > $o ).
% 0.23/0.44  
% 0.23/0.44  thf(cZERO_def,definition,
% 0.23/0.44      ( cZERO
% 0.23/0.44      = ( ^ [Xp: $i > $o] :
% 0.23/0.44            ~ ? [Xx: $i] : ( Xp @ Xx ) ) ) ).
% 0.23/0.44  
% 0.23/0.44  thf(cSUCC_def,definition,
% 0.23/0.44      ( cSUCC
% 0.23/0.44      = ( ^ [Xn: ( $i > $o ) > $o,Xp: $i > $o] :
% 0.23/0.44          ? [Xx: $i] :
% 0.23/0.44            ( ( Xp @ Xx )
% 0.23/0.44            & ( Xn
% 0.23/0.44              @ ^ [Xt: $i] :
% 0.23/0.44                  ( ( Xt != Xx )
% 0.23/0.44                  & ( Xp @ Xt ) ) ) ) ) ) ).
% 0.23/0.44  
% 0.23/0.44  thf(cONE_def,definition,
% 0.23/0.44      ( cONE
% 0.23/0.44      = ( cSUCC @ cZERO ) ) ).
% 0.23/0.44  
% 0.23/0.44  thf(c_less__eq__def,definition,
% 0.23/0.44      ( c_less__eq_
% 0.23/0.44      = ( ^ [Xx: ( $i > $o ) > $o,Xy: ( $i > $o ) > $o] :
% 0.23/0.44          ! [Xp: ( ( $i > $o ) > $o ) > $o] :
% 0.23/0.44            ( ( ( Xp @ Xx )
% 0.23/0.44              & ! [Xz: ( $i > $o ) > $o] :
% 0.23/0.44                  ( ( Xp @ Xz )
% 0.23/0.44                 => ( Xp @ ( cSUCC @ Xz ) ) ) )
% 0.23/0.44           => ( Xp @ Xy ) ) ) ) ).
% 0.23/0.44  
% 0.23/0.44  thf(cBLEDSOE7A,conjecture,
% 0.23/0.44      ( ( cP @ cONE )
% 0.23/0.44     => ? [Xx: ( $i > $o ) > $o] :
% 0.23/0.44          ( ( c_less__eq_ @ cZERO @ Xx )
% 0.23/0.44          & ( c_less__eq_ @ Xx @ ( cSUCC @ cONE ) )
% 0.23/0.44          & ( cP @ Xx ) ) ) ).
% 0.23/0.44  
% 0.23/0.44  %------------------------------------------------------------------------------
% 0.23/0.44  ------------------------
% 1.54/1.25  ---- Embedded in THF ---
% 1.54/1.25  %%% This output was generated by embedproblem, version 1.9.5 (library version 1.9).
% 1.54/1.25  %%% Generated on Tue Feb 24 12:43:02 EST 2026
% 1.54/1.25  %%% using '$$dhol' embedding, version 1.3.0.
% 1.54/1.25  %%% Logic specification used:
% 1.54/1.25  %%% thf(spec, logic, $$dhol).
% 1.54/1.25  
% 1.54/1.25  % SZS output start ListOfTHF for /export/starexec/sandbox2/tmp/tmp.hwPzrCpAh2/DTF2DTF4661.p
% See solution above
% 1.54/1.25  ------------------------
% 1.54/1.26  ---- Cleaned THF ---
% 1.54/1.26  thf(cP_type,type,
% 1.54/1.26      cP: ( ( $i > $o ) > $o ) > $o ).
% 1.54/1.26  
% 1.54/1.26  thf(cONE_type,type,
% 1.54/1.26      cONE: ( $i > $o ) > $o ).
% 1.54/1.26  
% 1.54/1.26  thf(cSUCC_type,type,
% 1.54/1.26      cSUCC: ( ( $i > $o ) > $o ) > ( $i > $o ) > $o ).
% 1.54/1.26  
% 1.54/1.26  thf(cZERO_type,type,
% 1.54/1.26      cZERO: ( $i > $o ) > $o ).
% 1.54/1.26  
% 1.54/1.26  thf(c_less__eq__type,type,
% 1.54/1.26      c_less__eq_: ( ( $i > $o ) > $o ) > ( ( $i > $o ) > $o ) > $o ).
% 1.54/1.26  
% 1.54/1.26  thf(cZERO_def,definition,
% 1.54/1.26      ( cZERO
% 1.54/1.26      = ( ^ [Xp: $i > $o] :
% 1.54/1.26            ~ ? [Xx: $i] : ( Xp @ Xx ) ) ) ).
% 1.54/1.26  
% 1.54/1.26  thf(cSUCC_def,definition,
% 1.54/1.26      ( cSUCC
% 1.54/1.26      = ( ^ [Xn: ( $i > $o ) > $o,Xp: $i > $o] :
% 1.54/1.26          ? [Xx: $i] :
% 1.54/1.26            ( ( Xp @ Xx )
% 1.54/1.26            & ( Xn
% 1.54/1.26              @ ^ [Xt: $i] :
% 1.54/1.26                  ( ( Xt != Xx )
% 1.54/1.26                  & ( Xp @ Xt ) ) ) ) ) ) ).
% 1.54/1.26  
% 1.54/1.26  thf(cONE_def,definition,
% 1.54/1.26      ( cONE
% 1.54/1.26      = ( cSUCC @ cZERO ) ) ).
% 1.54/1.26  
% 1.54/1.26  thf(c_less__eq__def,definition,
% 1.54/1.26      ( c_less__eq_
% 1.54/1.26      = ( ^ [Xx: ( $i > $o ) > $o,Xy: ( $i > $o ) > $o] :
% 1.54/1.26          ! [Xp: ( ( $i > $o ) > $o ) > $o] :
% 1.54/1.26            ( ( ( Xp @ Xx )
% 1.54/1.26              & ! [Xz: ( $i > $o ) > $o] :
% 1.54/1.26                  ( ( Xp @ Xz )
% 1.54/1.26                 => ( Xp @ ( cSUCC @ Xz ) ) ) )
% 1.54/1.26           => ( Xp @ Xy ) ) ) ) ).
% 1.54/1.26  
% 1.54/1.26  thf(cBLEDSOE7A,conjecture,
% 1.54/1.26      ( ( cP @ cONE )
% 1.54/1.26     => ? [Xx: ( $i > $o ) > $o] :
% 1.54/1.26          ( ( c_less__eq_ @ cZERO @ Xx )
% 1.54/1.26          & ( c_less__eq_ @ Xx @ ( cSUCC @ cONE ) )
% 1.54/1.26          & ( cP @ Xx ) ) ) ).
% 1.54/1.26  ------------------------
% 1.54/1.27  % (4815)lrs+1002_1:8_bd=off:fd=off:hud=10:tnu=1:i=183:si=on:rtra=on_0 on DTF2THF_4661 for (2999ds/183Mi)
% 1.54/1.28  % (4820)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_4661 for (2999ds/275Mi)
% 1.54/1.28  % (4817)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_4661 for (2999ds/27Mi)
% 1.54/1.28  % (4820)Refutation not found, incomplete strategy
% 1.54/1.28  % (4820)------------------------------
% 1.54/1.28  % (4820)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.54/1.28  % (4820)Termination reason: Refutation not found, incomplete strategy
% 1.54/1.28  
% 1.54/1.28  
% 1.54/1.28  % (4820)Memory used [KB]: 5500
% 1.54/1.28  % (4820)Time elapsed: 0.002 s
% 1.54/1.28  % (4820)Instructions burned: 2 (million)
% 1.54/1.28  % (4820)------------------------------
% 1.54/1.28  % (4820)------------------------------
% 1.54/1.28  % (4819)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_4661 for (2999ds/2Mi)
% 1.54/1.28  % (4816)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_4661 for (2999ds/4Mi)
% 1.54/1.28  % (4819)Instruction limit reached!
% 1.54/1.28  % (4819)------------------------------
% 1.54/1.28  % (4819)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.54/1.28  % (4819)Termination reason: Unknown
% 1.54/1.28  % (4819)Termination phase: Function definition elimination
% 1.54/1.28  
% 1.54/1.28  % (4819)Memory used [KB]: 895
% 1.54/1.28  % (4819)Time elapsed: 0.003 s
% 1.54/1.28  % (4819)Instructions burned: 2 (million)
% 1.54/1.28  % (4819)------------------------------
% 1.54/1.28  % (4819)------------------------------
% 1.54/1.28  % (4816)Instruction limit reached!
% 1.54/1.28  % (4816)------------------------------
% 1.54/1.28  % (4816)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.54/1.28  % (4816)Termination reason: Unknown
% 1.54/1.28  % (4816)Termination phase: Saturation
% 1.54/1.28  
% 1.54/1.28  % (4816)Memory used [KB]: 5500
% 1.54/1.28  % (4816)Time elapsed: 0.004 s
% 1.54/1.28  % (4816)Instructions burned: 4 (million)
% 1.54/1.28  % (4816)------------------------------
% 1.54/1.28  % (4816)------------------------------
% 1.54/1.29  % (4821)lrs+1004_1:128_cond=on:e2e=on:sp=weighted_frequency:i=18:si=on:rtra=on_0 on DTF2THF_4661 for (2999ds/18Mi)
% 1.54/1.29  % (4818)lrs+10_1:1_au=on:inj=on:i=2:si=on:rtra=on_0 on DTF2THF_4661 for (2999ds/2Mi)
% 1.54/1.30  % (4817)Refutation not found, incomplete strategy
% 1.54/1.30  % (4817)------------------------------
% 1.54/1.30  % (4817)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.54/1.30  % (4817)Termination reason: Refutation not found, incomplete strategy
% 1.54/1.30  
% 1.54/1.30  
% 1.54/1.30  % (4817)Memory used [KB]: 5628
% 1.54/1.30  % (4817)Time elapsed: 0.015 s
% 1.54/1.30  % (4817)Instructions burned: 25 (million)
% 1.54/1.30  % (4817)------------------------------
% 1.54/1.30  % (4817)------------------------------
% 1.54/1.30  % (4818)Instruction limit reached!
% 1.54/1.30  % (4818)------------------------------
% 1.54/1.30  % (4818)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.54/1.30  % (4818)Termination reason: Unknown
% 1.54/1.30  % (4818)Termination phase: Function definition elimination
% 1.54/1.30  
% 1.54/1.30  % (4818)Memory used [KB]: 895
% 1.54/1.30  % (4818)Time elapsed: 0.004 s
% 1.54/1.30  % (4818)Instructions burned: 2 (million)
% 1.54/1.30  % (4818)------------------------------
% 1.54/1.30  % (4818)------------------------------
% 1.65/1.30  % (4821)Instruction limit reached!
% 1.65/1.30  % (4821)------------------------------
% 1.65/1.30  % (4821)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.65/1.30  % (4821)Termination reason: Unknown
% 1.65/1.30  % (4821)Termination phase: Saturation
% 1.65/1.30  
% 1.65/1.30  % (4821)Memory used [KB]: 5500
% 1.65/1.30  % (4821)Time elapsed: 0.011 s
% 1.65/1.30  % (4821)Instructions burned: 18 (million)
% 1.65/1.30  % (4821)------------------------------
% 1.65/1.30  % (4821)------------------------------
% 1.65/1.30  % (4827)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_4661 for (2999ds/37Mi)
% 1.65/1.30  % (4828)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_4661 for (2999ds/15Mi)
% 1.65/1.31  % (4828)Instruction limit reached!
% 1.65/1.31  % (4828)------------------------------
% 1.65/1.31  % (4828)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.65/1.31  % (4828)Termination reason: Unknown
% 1.65/1.31  % (4828)Termination phase: Saturation
% 1.65/1.31  
% 1.65/1.31  % (4828)Memory used [KB]: 5628
% 1.65/1.31  % (4828)Time elapsed: 0.010 s
% 1.65/1.31  % (4828)Instructions burned: 16 (million)
% 1.65/1.31  % (4828)------------------------------
% 1.65/1.31  % (4828)------------------------------
% 1.65/1.31  % (4826)lrs+10_1:1_bet=on:cnfonf=off:fd=off:hud=5:inj=on:i=3:si=on:rtra=on_0 on DTF2THF_4661 for (2999ds/3Mi)
% 1.65/1.31  % (4832)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_4661 for (2999ds/1041Mi)
% 1.65/1.31  % (4834)lrs+10_1:1_av=off:chr=on:plsq=on:slsq=on:i=7:si=on:rtra=on_0 on DTF2THF_4661 for (2999ds/7Mi)
% 1.65/1.31  % (4826)Instruction limit reached!
% 1.65/1.31  % (4826)------------------------------
% 1.65/1.31  % (4826)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.65/1.31  % (4826)Termination reason: Unknown
% 1.65/1.31  % (4826)Termination phase: Saturation
% 1.65/1.31  
% 1.65/1.31  % (4826)Memory used [KB]: 5500
% 1.65/1.31  % (4826)Time elapsed: 0.005 s
% 1.65/1.31  % (4826)Instructions burned: 3 (million)
% 1.65/1.31  % (4826)------------------------------
% 1.65/1.31  % (4826)------------------------------
% 1.65/1.32  % (4827)Instruction limit reached!
% 1.65/1.32  % (4827)------------------------------
% 1.65/1.32  % (4827)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.65/1.32  % (4827)Termination reason: Unknown
% 1.65/1.32  % (4827)Termination phase: Saturation
% 1.65/1.32  
% 1.65/1.32  % (4827)Memory used [KB]: 5628
% 1.65/1.32  % (4827)Time elapsed: 0.019 s
% 1.65/1.32  % (4827)Instructions burned: 37 (million)
% 1.65/1.32  % (4827)------------------------------
% 1.65/1.32  % (4827)------------------------------
% 1.65/1.32  % (4834)Instruction limit reached!
% 1.65/1.32  % (4834)------------------------------
% 1.65/1.32  % (4834)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.65/1.32  % (4834)Termination reason: Unknown
% 1.65/1.32  % (4834)Termination phase: Saturation
% 1.65/1.32  
% 1.65/1.32  % (4834)Memory used [KB]: 1023
% 1.65/1.32  % (4834)Time elapsed: 0.005 s
% 1.65/1.32  % (4834)Instructions burned: 8 (million)
% 1.65/1.32  % (4834)------------------------------
% 1.65/1.32  % (4834)------------------------------
% 1.65/1.32  % (4832)First to succeed.
% 1.65/1.33  % (4831)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_4661 for (2999ds/3Mi)
% 1.65/1.33  % (4832)Refutation found. Thanks to Tanya!
% 1.65/1.33  % SZS status Theorem for DTF2THF_4661
% 1.65/1.33  % SZS output start Proof for DTF2THF_4661
% 1.65/1.33  thf(func_def_0, type, cP: (($i > $o) > $o) > $o).
% 1.65/1.33  thf(func_def_1, type, cONE: ($i > $o) > $o).
% 1.65/1.33  thf(func_def_2, type, cSUCC: (($i > $o) > $o) > ($i > $o) > $o).
% 1.65/1.33  thf(func_def_3, type, cZERO: ($i > $o) > $o).
% 1.65/1.33  thf(func_def_4, type, c_less__eq_: (($i > $o) > $o) > (($i > $o) > $o) > $o).
% 1.65/1.33  thf(func_def_22, type, ph1: !>[X0: $tType]:(X0)).
% 1.65/1.33  thf(func_def_23, type, sK2: (($i > $o) > $o) > $o).
% 1.65/1.33  thf(func_def_24, type, sK3: (($i > $o) > $o) > $o).
% 1.65/1.33  thf(f103,plain,(
% 1.65/1.33    $false),
% 1.65/1.33    inference(avatar_sat_refutation,[status(thm)],[f45,f74,f102])).
% 1.65/1.33  thf(f102,plain,(
% 1.65/1.33    ~spl0_1),
% 1.65/1.33    inference(avatar_contradiction_clause,[status(thm)],[f101])).
% 1.65/1.33  thf(f101,plain,(
% 1.65/1.33    $false | ~spl0_1),
% 1.65/1.33    inference(trivial_inequality_removal,[status(thm)],[f100])).
% 1.65/1.33  thf(f100,plain,(
% 1.65/1.33    ($false = $true) | ~spl0_1),
% 1.65/1.33    inference(forward_demodulation,[status(thm)],[f99,f81])).
% 1.65/1.33  thf(f81,plain,(
% 1.65/1.33    ((sK3 @ (^[Y0 : $i > $o]: (?? @ $i @ (^[Y1 : $i]: ((Y0 @ Y1) & (~ (?? @ $i @ (^[Y2 : $i]: ((~ (Y1 = Y2)) & (Y0 @ Y2)))))))))) = $false) | ~spl0_1),
% 1.65/1.33    inference(binary_proxy_clausification,[status(thm)],[f80])).
% 1.65/1.33  thf(f80,plain,(
% 1.65/1.33    ((((!! @ (($i > $o) > $o) @ (^[Y0 : ($i > $o) > $o]: ((sK3 @ Y0) => (sK3 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (Y0 @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & (Y1 @ Y3)))))))))))) & (sK3 @ (^[Y0 : $i > $o]: (~ (?? @ $i @ Y0))))) => (sK3 @ (^[Y0 : $i > $o]: (?? @ $i @ (^[Y1 : $i]: ((Y0 @ Y1) & (~ (?? @ $i @ (^[Y2 : $i]: ((~ (Y1 = Y2)) & (Y0 @ Y2))))))))))) = $false) | ~spl0_1),
% 1.65/1.33    inference(beta_eta_normalization,[status(thm)],[f77])).
% 1.65/1.33  thf(f77,plain,(
% 1.65/1.33    ($false = ((^[Y0 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y1 : ($i > $o) > $o]: ((Y0 @ Y1) => (Y0 @ (^[Y2 : $i > $o]: (?? @ $i @ (^[Y3 : $i]: ((Y2 @ Y3) & (Y1 @ (^[Y4 : $i]: ((~ (Y3 = Y4)) & (Y2 @ Y4)))))))))))) & (Y0 @ (^[Y1 : $i > $o]: (~ (?? @ $i @ Y1))))) => (Y0 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (~ (?? @ $i @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & (Y1 @ Y3)))))))))))) @ sK3)) | ~spl0_1),
% 1.65/1.33    inference(sigma_clausification,[status(thm)],[f41])).
% 1.65/1.33  thf(f41,plain,(
% 1.65/1.33    ($false = (!! @ ((($i > $o) > $o) > $o) @ (^[Y0 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y1 : ($i > $o) > $o]: ((Y0 @ Y1) => (Y0 @ (^[Y2 : $i > $o]: (?? @ $i @ (^[Y3 : $i]: ((Y2 @ Y3) & (Y1 @ (^[Y4 : $i]: ((~ (Y3 = Y4)) & (Y2 @ Y4)))))))))))) & (Y0 @ (^[Y1 : $i > $o]: (~ (?? @ $i @ Y1))))) => (Y0 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (~ (?? @ $i @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & (Y1 @ Y3)))))))))))))) | ~spl0_1),
% 1.65/1.33    inference(avatar_component_clause,[status(thm)],[f40])).
% 1.65/1.33  thf(f40,definition,(
% 1.65/1.33    spl0_1 <=> ($false = (!! @ ((($i > $o) > $o) > $o) @ (^[Y0 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y1 : ($i > $o) > $o]: ((Y0 @ Y1) => (Y0 @ (^[Y2 : $i > $o]: (?? @ $i @ (^[Y3 : $i]: ((Y2 @ Y3) & (Y1 @ (^[Y4 : $i]: ((~ (Y3 = Y4)) & (Y2 @ Y4)))))))))))) & (Y0 @ (^[Y1 : $i > $o]: (~ (?? @ $i @ Y1))))) => (Y0 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (~ (?? @ $i @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & (Y1 @ Y3))))))))))))))),
% 1.65/1.33    introduced(definition,[new_symbols(naming,[spl0_1])],[avatar_definition])).
% 1.65/1.33  thf(f99,plain,(
% 1.65/1.33    ((sK3 @ (^[Y0 : $i > $o]: (?? @ $i @ (^[Y1 : $i]: ((Y0 @ Y1) & (~ (?? @ $i @ (^[Y2 : $i]: ((~ (Y1 = Y2)) & (Y0 @ Y2)))))))))) = $true) | ~spl0_1),
% 1.65/1.33    inference(boolean_simplification,[status(thm)],[f98])).
% 1.65/1.33  thf(f98,plain,(
% 1.65/1.33    (($true => (sK3 @ (^[Y0 : $i > $o]: (?? @ $i @ (^[Y1 : $i]: ((Y0 @ Y1) & (~ (?? @ $i @ (^[Y2 : $i]: ((~ (Y1 = Y2)) & (Y0 @ Y2))))))))))) = $true) | ~spl0_1),
% 1.65/1.33    inference(beta_eta_normalization,[status(thm)],[f94])).
% 1.65/1.33  thf(f94,plain,(
% 1.65/1.33    (($true => (sK3 @ (^[Y0 : $i > $o]: (?? @ $i @ (^[Y1 : $i]: ((Y0 @ Y1) & ((^[Y2 : $i > $o]: (~ (?? @ $i @ Y2))) @ (^[Y2 : $i]: ((~ (Y1 = Y2)) & (Y0 @ Y2)))))))))) = $true) | ~spl0_1),
% 1.65/1.33    inference(superposition,[status(thm)],[f92,f87])).
% 1.65/1.33  thf(f87,plain,(
% 1.65/1.33    ((sK3 @ (^[Y0 : $i > $o]: (~ (?? @ $i @ Y0)))) = $true) | ~spl0_1),
% 1.65/1.33    inference(binary_proxy_clausification,[status(thm)],[f82])).
% 1.65/1.33  thf(f82,plain,(
% 1.65/1.33    (((!! @ (($i > $o) > $o) @ (^[Y0 : ($i > $o) > $o]: ((sK3 @ Y0) => (sK3 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (Y0 @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & (Y1 @ Y3)))))))))))) & (sK3 @ (^[Y0 : $i > $o]: (~ (?? @ $i @ Y0))))) = $true) | ~spl0_1),
% 1.65/1.33    inference(binary_proxy_clausification,[status(thm)],[f80])).
% 1.65/1.33  thf(f92,plain,(
% 1.65/1.33    ( ! [X1 : ($i > $o) > $o] : ((((sK3 @ X1) => (sK3 @ (^[Y0 : $i > $o]: (?? @ $i @ (^[Y1 : $i]: ((Y0 @ Y1) & (X1 @ (^[Y2 : $i]: ((~ (Y1 = Y2)) & (Y0 @ Y2)))))))))) = $true)) ) | ~spl0_1),
% 1.65/1.33    inference(beta_eta_normalization,[status(thm)],[f91])).
% 1.65/1.33  thf(f91,plain,(
% 1.65/1.33    ( ! [X1 : ($i > $o) > $o] : ((((^[Y0 : ($i > $o) > $o]: ((sK3 @ Y0) => (sK3 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (Y0 @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & (Y1 @ Y3))))))))))) @ X1) = $true)) ) | ~spl0_1),
% 1.65/1.33    inference(pi_clausification,[status(thm)],[f90])).
% 1.65/1.33  thf(f90,plain,(
% 1.65/1.33    ((!! @ (($i > $o) > $o) @ (^[Y0 : ($i > $o) > $o]: ((sK3 @ Y0) => (sK3 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (Y0 @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & (Y1 @ Y3)))))))))))) = $true) | ~spl0_1),
% 1.65/1.33    inference(boolean_simplification,[status(thm)],[f89])).
% 1.65/1.33  thf(f89,plain,(
% 1.65/1.33    (((!! @ (($i > $o) > $o) @ (^[Y0 : ($i > $o) > $o]: ((sK3 @ Y0) => (sK3 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (Y0 @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & (Y1 @ Y3)))))))))))) & $true) = $true) | ~spl0_1),
% 1.65/1.33    inference(backward_demodulation,[status(thm)],[f82,f87])).
% 1.65/1.33  thf(f74,plain,(
% 1.65/1.33    ~spl0_2),
% 1.65/1.33    inference(avatar_contradiction_clause,[status(thm)],[f73])).
% 1.65/1.33  thf(f73,plain,(
% 1.65/1.33    $false | ~spl0_2),
% 1.65/1.33    inference(trivial_inequality_removal,[status(thm)],[f72])).
% 1.65/1.33  thf(f72,plain,(
% 1.65/1.33    ($false = $true) | ~spl0_2),
% 1.65/1.33    inference(forward_demodulation,[status(thm)],[f69,f53])).
% 1.65/1.33  thf(f53,plain,(
% 1.65/1.33    ($false = (sK2 @ (^[Y0 : $i > $o]: (?? @ $i @ (^[Y1 : $i]: ((Y0 @ Y1) & (?? @ $i @ (^[Y2 : $i]: (((~ (Y1 = Y2)) & (Y0 @ Y2)) & (~ (?? @ $i @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & ((~ (Y1 = Y3)) & (Y0 @ Y3))))))))))))))) | ~spl0_2),
% 1.65/1.33    inference(binary_proxy_clausification,[status(thm)],[f52])).
% 1.65/1.33  thf(f52,plain,(
% 1.65/1.33    ($false = (((!! @ (($i > $o) > $o) @ (^[Y0 : ($i > $o) > $o]: ((sK2 @ Y0) => (sK2 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (Y0 @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & (Y1 @ Y3)))))))))))) & (sK2 @ (^[Y0 : $i > $o]: (?? @ $i @ (^[Y1 : $i]: ((Y0 @ Y1) & (~ (?? @ $i @ (^[Y2 : $i]: ((~ (Y1 = Y2)) & (Y0 @ Y2))))))))))) => (sK2 @ (^[Y0 : $i > $o]: (?? @ $i @ (^[Y1 : $i]: ((Y0 @ Y1) & (?? @ $i @ (^[Y2 : $i]: (((~ (Y1 = Y2)) & (Y0 @ Y2)) & (~ (?? @ $i @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & ((~ (Y1 = Y3)) & (Y0 @ Y3)))))))))))))))) | ~spl0_2),
% 1.65/1.33    inference(beta_eta_normalization,[status(thm)],[f48])).
% 1.65/1.33  thf(f48,plain,(
% 1.65/1.33    ($false = ((^[Y0 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y1 : ($i > $o) > $o]: ((Y0 @ Y1) => (Y0 @ (^[Y2 : $i > $o]: (?? @ $i @ (^[Y3 : $i]: ((Y2 @ Y3) & (Y1 @ (^[Y4 : $i]: ((~ (Y3 = Y4)) & (Y2 @ Y4)))))))))))) & (Y0 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (~ (?? @ $i @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & (Y1 @ Y3))))))))))) => (Y0 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (?? @ $i @ (^[Y3 : $i]: (((~ (Y2 = Y3)) & (Y1 @ Y3)) & (~ (?? @ $i @ (^[Y4 : $i]: ((~ (Y3 = Y4)) & ((~ (Y2 = Y4)) & (Y1 @ Y4)))))))))))))))) @ sK2)) | ~spl0_2),
% 1.65/1.33    inference(sigma_clausification,[status(thm)],[f44])).
% 1.65/1.33  thf(f44,plain,(
% 1.65/1.33    ($false = (!! @ ((($i > $o) > $o) > $o) @ (^[Y0 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y1 : ($i > $o) > $o]: ((Y0 @ Y1) => (Y0 @ (^[Y2 : $i > $o]: (?? @ $i @ (^[Y3 : $i]: ((Y2 @ Y3) & (Y1 @ (^[Y4 : $i]: ((~ (Y3 = Y4)) & (Y2 @ Y4)))))))))))) & (Y0 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (~ (?? @ $i @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & (Y1 @ Y3))))))))))) => (Y0 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (?? @ $i @ (^[Y3 : $i]: (((~ (Y2 = Y3)) & (Y1 @ Y3)) & (~ (?? @ $i @ (^[Y4 : $i]: ((~ (Y3 = Y4)) & ((~ (Y2 = Y4)) & (Y1 @ Y4)))))))))))))))))) | ~spl0_2),
% 1.65/1.33    inference(avatar_component_clause,[status(thm)],[f43])).
% 1.65/1.33  thf(f43,definition,(
% 1.65/1.33    spl0_2 <=> ($false = (!! @ ((($i > $o) > $o) > $o) @ (^[Y0 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y1 : ($i > $o) > $o]: ((Y0 @ Y1) => (Y0 @ (^[Y2 : $i > $o]: (?? @ $i @ (^[Y3 : $i]: ((Y2 @ Y3) & (Y1 @ (^[Y4 : $i]: ((~ (Y3 = Y4)) & (Y2 @ Y4)))))))))))) & (Y0 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (~ (?? @ $i @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & (Y1 @ Y3))))))))))) => (Y0 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (?? @ $i @ (^[Y3 : $i]: (((~ (Y2 = Y3)) & (Y1 @ Y3)) & (~ (?? @ $i @ (^[Y4 : $i]: ((~ (Y3 = Y4)) & ((~ (Y2 = Y4)) & (Y1 @ Y4))))))))))))))))))),
% 1.65/1.33    introduced(definition,[new_symbols(naming,[spl0_2])],[avatar_definition])).
% 1.65/1.33  thf(f69,plain,(
% 1.65/1.33    ((sK2 @ (^[Y0 : $i > $o]: (?? @ $i @ (^[Y1 : $i]: ((Y0 @ Y1) & (?? @ $i @ (^[Y2 : $i]: (((~ (Y1 = Y2)) & (Y0 @ Y2)) & (~ (?? @ $i @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & ((~ (Y1 = Y3)) & (Y0 @ Y3)))))))))))))) = $true) | ~spl0_2),
% 1.65/1.33    inference(boolean_simplification,[status(thm)],[f68])).
% 1.65/1.33  thf(f68,plain,(
% 1.65/1.33    (($true => (sK2 @ (^[Y0 : $i > $o]: (?? @ $i @ (^[Y1 : $i]: ((Y0 @ Y1) & (?? @ $i @ (^[Y2 : $i]: (((~ (Y1 = Y2)) & (Y0 @ Y2)) & (~ (?? @ $i @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & ((~ (Y1 = Y3)) & (Y0 @ Y3))))))))))))))) = $true) | ~spl0_2),
% 1.65/1.33    inference(beta_eta_normalization,[status(thm)],[f66])).
% 1.65/1.33  thf(f66,plain,(
% 1.65/1.33    (($true => (sK2 @ (^[Y0 : $i > $o]: (?? @ $i @ (^[Y1 : $i]: ((Y0 @ Y1) & ((^[Y2 : $i > $o]: (?? @ $i @ (^[Y3 : $i]: ((Y2 @ Y3) & (~ (?? @ $i @ (^[Y4 : $i]: ((~ (Y3 = Y4)) & (Y2 @ Y4))))))))) @ (^[Y2 : $i]: ((~ (Y1 = Y2)) & (Y0 @ Y2)))))))))) = $true) | ~spl0_2),
% 1.65/1.33    inference(superposition,[status(thm)],[f64,f62])).
% 1.65/1.33  thf(f62,plain,(
% 1.65/1.33    ((sK2 @ (^[Y0 : $i > $o]: (?? @ $i @ (^[Y1 : $i]: ((Y0 @ Y1) & (~ (?? @ $i @ (^[Y2 : $i]: ((~ (Y1 = Y2)) & (Y0 @ Y2)))))))))) = $true) | ~spl0_2),
% 1.65/1.33    inference(boolean_simplification,[status(thm)],[f61])).
% 1.65/1.33  thf(f61,plain,(
% 1.65/1.33    (($true & (sK2 @ (^[Y0 : $i > $o]: (?? @ $i @ (^[Y1 : $i]: ((Y0 @ Y1) & (~ (?? @ $i @ (^[Y2 : $i]: ((~ (Y1 = Y2)) & (Y0 @ Y2))))))))))) = $true) | ~spl0_2),
% 1.65/1.33    inference(backward_demodulation,[status(thm)],[f54,f60])).
% 1.65/1.33  thf(f60,plain,(
% 1.65/1.33    ((!! @ (($i > $o) > $o) @ (^[Y0 : ($i > $o) > $o]: ((sK2 @ Y0) => (sK2 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (Y0 @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & (Y1 @ Y3)))))))))))) = $true) | ~spl0_2),
% 1.65/1.33    inference(binary_proxy_clausification,[status(thm)],[f54])).
% 1.65/1.33  thf(f54,plain,(
% 1.65/1.33    (((!! @ (($i > $o) > $o) @ (^[Y0 : ($i > $o) > $o]: ((sK2 @ Y0) => (sK2 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (Y0 @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & (Y1 @ Y3)))))))))))) & (sK2 @ (^[Y0 : $i > $o]: (?? @ $i @ (^[Y1 : $i]: ((Y0 @ Y1) & (~ (?? @ $i @ (^[Y2 : $i]: ((~ (Y1 = Y2)) & (Y0 @ Y2))))))))))) = $true) | ~spl0_2),
% 1.65/1.33    inference(binary_proxy_clausification,[status(thm)],[f52])).
% 1.65/1.33  thf(f64,plain,(
% 1.65/1.33    ( ! [X1 : ($i > $o) > $o] : ((((sK2 @ X1) => (sK2 @ (^[Y0 : $i > $o]: (?? @ $i @ (^[Y1 : $i]: ((Y0 @ Y1) & (X1 @ (^[Y2 : $i]: ((~ (Y1 = Y2)) & (Y0 @ Y2)))))))))) = $true)) ) | ~spl0_2),
% 1.65/1.33    inference(beta_eta_normalization,[status(thm)],[f63])).
% 1.65/1.33  thf(f63,plain,(
% 1.65/1.33    ( ! [X1 : ($i > $o) > $o] : ((((^[Y0 : ($i > $o) > $o]: ((sK2 @ Y0) => (sK2 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (Y0 @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & (Y1 @ Y3))))))))))) @ X1) = $true)) ) | ~spl0_2),
% 1.65/1.33    inference(pi_clausification,[status(thm)],[f60])).
% 1.65/1.33  thf(f45,plain,(
% 1.65/1.33    spl0_1 | spl0_2),
% 1.65/1.33    inference(avatar_split_clause,[status(thm)],[f38,f43,f40])).
% 1.65/1.33  thf(f38,plain,(
% 1.65/1.33    ($false = (!! @ ((($i > $o) > $o) > $o) @ (^[Y0 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y1 : ($i > $o) > $o]: ((Y0 @ Y1) => (Y0 @ (^[Y2 : $i > $o]: (?? @ $i @ (^[Y3 : $i]: ((Y2 @ Y3) & (Y1 @ (^[Y4 : $i]: ((~ (Y3 = Y4)) & (Y2 @ Y4)))))))))))) & (Y0 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (~ (?? @ $i @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & (Y1 @ Y3))))))))))) => (Y0 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (?? @ $i @ (^[Y3 : $i]: (((~ (Y2 = Y3)) & (Y1 @ Y3)) & (~ (?? @ $i @ (^[Y4 : $i]: ((~ (Y3 = Y4)) & ((~ (Y2 = Y4)) & (Y1 @ Y4)))))))))))))))))) | ($false = (!! @ ((($i > $o) > $o) > $o) @ (^[Y0 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y1 : ($i > $o) > $o]: ((Y0 @ Y1) => (Y0 @ (^[Y2 : $i > $o]: (?? @ $i @ (^[Y3 : $i]: ((Y2 @ Y3) & (Y1 @ (^[Y4 : $i]: ((~ (Y3 = Y4)) & (Y2 @ Y4)))))))))))) & (Y0 @ (^[Y1 : $i > $o]: (~ (?? @ $i @ Y1))))) => (Y0 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (~ (?? @ $i @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & (Y1 @ Y3))))))))))))))),
% 1.65/1.33    inference(binary_proxy_clausification,[status(thm)],[f37])).
% 1.65/1.33  thf(f37,plain,(
% 1.65/1.33    (((!! @ ((($i > $o) > $o) > $o) @ (^[Y0 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y1 : ($i > $o) > $o]: ((Y0 @ Y1) => (Y0 @ (^[Y2 : $i > $o]: (?? @ $i @ (^[Y3 : $i]: ((Y2 @ Y3) & (Y1 @ (^[Y4 : $i]: ((~ (Y3 = Y4)) & (Y2 @ Y4)))))))))))) & (Y0 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (~ (?? @ $i @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & (Y1 @ Y3))))))))))) => (Y0 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (?? @ $i @ (^[Y3 : $i]: (((~ (Y2 = Y3)) & (Y1 @ Y3)) & (~ (?? @ $i @ (^[Y4 : $i]: ((~ (Y3 = Y4)) & ((~ (Y2 = Y4)) & (Y1 @ Y4))))))))))))))))) & (!! @ ((($i > $o) > $o) > $o) @ (^[Y0 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y1 : ($i > $o) > $o]: ((Y0 @ Y1) => (Y0 @ (^[Y2 : $i > $o]: (?? @ $i @ (^[Y3 : $i]: ((Y2 @ Y3) & (Y1 @ (^[Y4 : $i]: ((~ (Y3 = Y4)) & (Y2 @ Y4)))))))))))) & (Y0 @ (^[Y1 : $i > $o]: (~ (?? @ $i @ Y1))))) => (Y0 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (~ (?? @ $i @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & (Y1 @ Y3)))))))))))))) = $false)),
% 1.65/1.33    inference(boolean_simplification,[status(thm)],[f36])).
% 1.65/1.33  thf(f36,plain,(
% 1.65/1.33    ($false = (((!! @ ((($i > $o) > $o) > $o) @ (^[Y0 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y1 : ($i > $o) > $o]: ((Y0 @ Y1) => (Y0 @ (^[Y2 : $i > $o]: (?? @ $i @ (^[Y3 : $i]: ((Y2 @ Y3) & (Y1 @ (^[Y4 : $i]: ((~ (Y3 = Y4)) & (Y2 @ Y4)))))))))))) & (Y0 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (~ (?? @ $i @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & (Y1 @ Y3))))))))))) => (Y0 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (?? @ $i @ (^[Y3 : $i]: (((~ (Y2 = Y3)) & (Y1 @ Y3)) & (~ (?? @ $i @ (^[Y4 : $i]: ((~ (Y3 = Y4)) & ((~ (Y2 = Y4)) & (Y1 @ Y4))))))))))))))))) & $true) & (!! @ ((($i > $o) > $o) > $o) @ (^[Y0 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y1 : ($i > $o) > $o]: ((Y0 @ Y1) => (Y0 @ (^[Y2 : $i > $o]: (?? @ $i @ (^[Y3 : $i]: ((Y2 @ Y3) & (Y1 @ (^[Y4 : $i]: ((~ (Y3 = Y4)) & (Y2 @ Y4)))))))))))) & (Y0 @ (^[Y1 : $i > $o]: (~ (?? @ $i @ Y1))))) => (Y0 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (~ (?? @ $i @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & (Y1 @ Y3)))))))))))))))),
% 1.65/1.33    inference(superposition,[status(thm)],[f34,f30])).
% 1.65/1.33  thf(f30,plain,(
% 1.65/1.33    ((cP @ (^[Y0 : $i > $o]: (?? @ $i @ (^[Y1 : $i]: ((Y0 @ Y1) & (~ (?? @ $i @ (^[Y2 : $i]: ((~ (Y1 = Y2)) & (Y0 @ Y2)))))))))) = $true)),
% 1.65/1.33    inference(binary_proxy_clausification,[status(thm)],[f26])).
% 1.65/1.33  thf(f26,plain,(
% 1.65/1.33    ($false = ((cP @ (^[Y0 : $i > $o]: (?? @ $i @ (^[Y1 : $i]: ((Y0 @ Y1) & (~ (?? @ $i @ (^[Y2 : $i]: ((~ (Y1 = Y2)) & (Y0 @ Y2)))))))))) => (?? @ (($i > $o) > $o) @ (^[Y0 : ($i > $o) > $o]: (((!! @ ((($i > $o) > $o) > $o) @ (^[Y1 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y2 : ($i > $o) > $o]: ((Y1 @ Y2) => (Y1 @ (^[Y3 : $i > $o]: (?? @ $i @ (^[Y4 : $i]: ((Y3 @ Y4) & (Y2 @ (^[Y5 : $i]: ((~ (Y4 = Y5)) & (Y3 @ Y5)))))))))))) & (Y1 @ Y0)) => (Y1 @ (^[Y2 : $i > $o]: (?? @ $i @ (^[Y3 : $i]: ((Y2 @ Y3) & (?? @ $i @ (^[Y4 : $i]: (((~ (Y3 = Y4)) & (Y2 @ Y4)) & (~ (?? @ $i @ (^[Y5 : $i]: ((~ (Y4 = Y5)) & ((~ (Y3 = Y5)) & (Y2 @ Y5))))))))))))))))) & (cP @ Y0)) & (!! @ ((($i > $o) > $o) > $o) @ (^[Y1 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y2 : ($i > $o) > $o]: ((Y1 @ Y2) => (Y1 @ (^[Y3 : $i > $o]: (?? @ $i @ (^[Y4 : $i]: ((Y3 @ Y4) & (Y2 @ (^[Y5 : $i]: ((~ (Y4 = Y5)) & (Y3 @ Y5)))))))))))) & (Y1 @ (^[Y2 : $i > $o]: (~ (?? @ $i @ Y2))))) => (Y1 @ Y0)))))))))),
% 1.65/1.33    inference(not_proxy_clausification,[status(thm)],[f25])).
% 1.65/1.33  thf(f25,plain,(
% 1.65/1.33    ((~ ((cP @ (^[Y0 : $i > $o]: (?? @ $i @ (^[Y1 : $i]: ((Y0 @ Y1) & (~ (?? @ $i @ (^[Y2 : $i]: ((~ (Y1 = Y2)) & (Y0 @ Y2)))))))))) => (?? @ (($i > $o) > $o) @ (^[Y0 : ($i > $o) > $o]: (((!! @ ((($i > $o) > $o) > $o) @ (^[Y1 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y2 : ($i > $o) > $o]: ((Y1 @ Y2) => (Y1 @ (^[Y3 : $i > $o]: (?? @ $i @ (^[Y4 : $i]: ((Y3 @ Y4) & (Y2 @ (^[Y5 : $i]: ((~ (Y4 = Y5)) & (Y3 @ Y5)))))))))))) & (Y1 @ Y0)) => (Y1 @ (^[Y2 : $i > $o]: (?? @ $i @ (^[Y3 : $i]: ((Y2 @ Y3) & (?? @ $i @ (^[Y4 : $i]: (((~ (Y3 = Y4)) & (Y2 @ Y4)) & (~ (?? @ $i @ (^[Y5 : $i]: ((~ (Y4 = Y5)) & ((~ (Y3 = Y5)) & (Y2 @ Y5))))))))))))))))) & (cP @ Y0)) & (!! @ ((($i > $o) > $o) > $o) @ (^[Y1 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y2 : ($i > $o) > $o]: ((Y1 @ Y2) => (Y1 @ (^[Y3 : $i > $o]: (?? @ $i @ (^[Y4 : $i]: ((Y3 @ Y4) & (Y2 @ (^[Y5 : $i]: ((~ (Y4 = Y5)) & (Y3 @ Y5)))))))))))) & (Y1 @ (^[Y2 : $i > $o]: (~ (?? @ $i @ Y2))))) => (Y1 @ Y0))))))))) = $true)),
% 1.65/1.33    inference(beta_eta_normalization,[status(thm)],[f24])).
% 1.65/1.33  thf(f24,plain,(
% 1.65/1.33    ((~ ((cP @ ((^[Y0 : ($i > $o) > $o]: ((^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (Y0 @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & (Y1 @ Y3)))))))))) @ (^[Y0 : $i > $o]: (~ (?? @ $i @ (^[Y1 : $i]: (Y0 @ Y1))))))) => (?? @ (($i > $o) > $o) @ (^[Y0 : ($i > $o) > $o]: ((((^[Y1 : ($i > $o) > $o]: ((^[Y2 : ($i > $o) > $o]: (!! @ ((($i > $o) > $o) > $o) @ (^[Y3 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y4 : ($i > $o) > $o]: ((Y3 @ Y4) => (Y3 @ ((^[Y5 : ($i > $o) > $o]: ((^[Y6 : $i > $o]: (?? @ $i @ (^[Y7 : $i]: ((Y6 @ Y7) & (Y5 @ (^[Y8 : $i]: ((~ (Y7 = Y8)) & (Y6 @ Y8)))))))))) @ Y4))))) & (Y3 @ Y1)) => (Y3 @ Y2))))))) @ Y0 @ ((^[Y1 : ($i > $o) > $o]: ((^[Y2 : $i > $o]: (?? @ $i @ (^[Y3 : $i]: ((Y2 @ Y3) & (Y1 @ (^[Y4 : $i]: ((~ (Y3 = Y4)) & (Y2 @ Y4)))))))))) @ ((^[Y1 : ($i > $o) > $o]: ((^[Y2 : $i > $o]: (?? @ $i @ (^[Y3 : $i]: ((Y2 @ Y3) & (Y1 @ (^[Y4 : $i]: ((~ (Y3 = Y4)) & (Y2 @ Y4)))))))))) @ (^[Y1 : $i > $o]: (~ (?? @ $i @ (^[Y2 : $i]: (Y1 @ Y2)))))))) & (cP @ Y0)) & ((^[Y1 : ($i > $o) > $o]: ((^[Y2 : ($i > $o) > $o]: (!! @ ((($i > $o) > $o) > $o) @ (^[Y3 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y4 : ($i > $o) > $o]: ((Y3 @ Y4) => (Y3 @ ((^[Y5 : ($i > $o) > $o]: ((^[Y6 : $i > $o]: (?? @ $i @ (^[Y7 : $i]: ((Y6 @ Y7) & (Y5 @ (^[Y8 : $i]: ((~ (Y7 = Y8)) & (Y6 @ Y8)))))))))) @ Y4))))) & (Y3 @ Y1)) => (Y3 @ Y2))))))) @ (^[Y1 : $i > $o]: (~ (?? @ $i @ (^[Y2 : $i]: (Y1 @ Y2))))) @ Y0)))))) = $true)),
% 1.65/1.33    inference(definition_unfolding,[status(thm)],[f21,f22,f23,f17,f22,f23,f18])).
% 1.65/1.33  thf(f18,plain,(
% 1.65/1.33    (cZERO = (^[Y0 : $i > $o]: (~ (?? @ $i @ (^[Y1 : $i]: (Y0 @ Y1))))))),
% 1.65/1.33    inference(cnf_transformation,[status(thm)],[f9])).
% 1.65/1.33  thf(f9,plain,(
% 1.65/1.33    (cZERO = (^[Y0 : $i > $o]: (~ (?? @ $i @ (^[Y1 : $i]: (Y0 @ Y1))))))),
% 1.65/1.33    inference(fool_elimination,[status(thm)],[f8])).
% 1.65/1.33  thf(f8,plain,(
% 1.65/1.33    (cZERO = (^[X0 : $i > $o] : (~? [X1 : $i] : (X0 @ X1))))),
% 1.65/1.33    inference(rectify,[status(thm)],[f1])).
% 1.65/1.33  thf(f1,axiom,(
% 1.65/1.33    (cZERO = (^[X0 : $i > $o] : (~? [X1 : $i] : (X0 @ X1))))),
% 1.65/1.33    file('/export/starexec/sandbox2/tmp/tmp.hwPzrCpAh2/DTF2THF_4661.p',cZERO_def)).
% 1.65/1.33  thf(f17,plain,(
% 1.65/1.33    (cSUCC = (^[Y0 : ($i > $o) > $o]: ((^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (Y0 @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & (Y1 @ Y3)))))))))))),
% 1.65/1.33    inference(cnf_transformation,[status(thm)],[f16])).
% 1.65/1.33  thf(f16,plain,(
% 1.65/1.33    (cSUCC = (^[Y0 : ($i > $o) > $o]: ((^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (Y0 @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & (Y1 @ Y3)))))))))))),
% 1.65/1.33    inference(fool_elimination,[status(thm)],[f15])).
% 1.65/1.33  thf(f15,plain,(
% 1.65/1.33    (cSUCC = (^[X0 : ($i > $o) > $o, X1 : $i > $o] : (? [X2 : $i] : ((X0 @ (^[X3 : $i] : ((X1 @ X3) & (X2 != X3)))) & (X1 @ X2)))))),
% 1.65/1.33    inference(rectify,[status(thm)],[f2])).
% 1.65/1.33  thf(f2,axiom,(
% 1.65/1.33    (cSUCC = (^[X2 : ($i > $o) > $o, X0 : $i > $o] : (? [X1 : $i] : ((X2 @ (^[X3 : $i] : ((X0 @ X3) & (X1 != X3)))) & (X0 @ X1)))))),
% 1.65/1.33    file('/export/starexec/sandbox2/tmp/tmp.hwPzrCpAh2/DTF2THF_4661.p',cSUCC_def)).
% 1.65/1.33  thf(f23,plain,(
% 1.65/1.33    (c_less__eq_ = (^[Y0 : ($i > $o) > $o]: ((^[Y1 : ($i > $o) > $o]: (!! @ ((($i > $o) > $o) > $o) @ (^[Y2 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y3 : ($i > $o) > $o]: ((Y2 @ Y3) => (Y2 @ ((^[Y4 : ($i > $o) > $o]: ((^[Y5 : $i > $o]: (?? @ $i @ (^[Y6 : $i]: ((Y5 @ Y6) & (Y4 @ (^[Y7 : $i]: ((~ (Y6 = Y7)) & (Y5 @ Y7)))))))))) @ Y3))))) & (Y2 @ Y0)) => (Y2 @ Y1))))))))),
% 1.65/1.33    inference(definition_unfolding,[status(thm)],[f19,f17])).
% 1.65/1.33  thf(f19,plain,(
% 1.65/1.33    (c_less__eq_ = (^[Y0 : ($i > $o) > $o]: ((^[Y1 : ($i > $o) > $o]: (!! @ ((($i > $o) > $o) > $o) @ (^[Y2 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y3 : ($i > $o) > $o]: ((Y2 @ Y3) => (Y2 @ (cSUCC @ Y3))))) & (Y2 @ Y0)) => (Y2 @ Y1))))))))),
% 1.65/1.33    inference(cnf_transformation,[status(thm)],[f14])).
% 1.65/1.33  thf(f14,plain,(
% 1.65/1.33    (c_less__eq_ = (^[Y0 : ($i > $o) > $o]: ((^[Y1 : ($i > $o) > $o]: (!! @ ((($i > $o) > $o) > $o) @ (^[Y2 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y3 : ($i > $o) > $o]: ((Y2 @ Y3) => (Y2 @ (cSUCC @ Y3))))) & (Y2 @ Y0)) => (Y2 @ Y1))))))))),
% 1.65/1.33    inference(fool_elimination,[status(thm)],[f13])).
% 1.65/1.33  thf(f13,plain,(
% 1.65/1.33    (c_less__eq_ = (^[X0 : ($i > $o) > $o, X1 : ($i > $o) > $o] : (! [X2 : (($i > $o) > $o) > $o] : (((X2 @ X0) & ! [X3 : ($i > $o) > $o] : ((X2 @ X3) => (X2 @ (cSUCC @ X3)))) => (X2 @ X1)))))),
% 1.65/1.33    inference(rectify,[status(thm)],[f4])).
% 1.65/1.33  thf(f4,axiom,(
% 1.65/1.33    (c_less__eq_ = (^[X1 : ($i > $o) > $o, X4 : ($i > $o) > $o] : (! [X0 : (($i > $o) > $o) > $o] : (((X0 @ X1) & ! [X5 : ($i > $o) > $o] : ((X0 @ X5) => (X0 @ (cSUCC @ X5)))) => (X0 @ X4)))))),
% 1.65/1.33    file('/export/starexec/sandbox2/tmp/tmp.hwPzrCpAh2/DTF2THF_4661.p',c_less__eq__def)).
% 1.65/1.33  thf(f22,plain,(
% 1.65/1.33    (cONE = ((^[Y0 : ($i > $o) > $o]: ((^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (Y0 @ (^[Y3 : $i]: ((~ (Y2 = Y3)) & (Y1 @ Y3)))))))))) @ (^[Y0 : $i > $o]: (~ (?? @ $i @ (^[Y1 : $i]: (Y0 @ Y1)))))))),
% 1.65/1.33    inference(definition_unfolding,[status(thm)],[f20,f17,f18])).
% 1.65/1.33  thf(f20,plain,(
% 1.65/1.33    (cONE = (cSUCC @ cZERO))),
% 1.65/1.33    inference(cnf_transformation,[status(thm)],[f10])).
% 1.65/1.33  thf(f10,plain,(
% 1.65/1.33    (cONE = (cSUCC @ cZERO))),
% 1.65/1.33    inference(fool_elimination,[status(thm)],[f3])).
% 1.65/1.33  thf(f3,axiom,(
% 1.65/1.33    (cONE = (cSUCC @ cZERO))),
% 1.65/1.33    file('/export/starexec/sandbox2/tmp/tmp.hwPzrCpAh2/DTF2THF_4661.p',cONE_def)).
% 1.65/1.33  thf(f21,plain,(
% 1.65/1.33    ((~ ((cP @ cONE) => (?? @ (($i > $o) > $o) @ (^[Y0 : ($i > $o) > $o]: (((c_less__eq_ @ Y0 @ (cSUCC @ cONE)) & (cP @ Y0)) & (c_less__eq_ @ cZERO @ Y0)))))) = $true)),
% 1.65/1.33    inference(cnf_transformation,[status(thm)],[f12])).
% 1.65/1.33  thf(f12,plain,(
% 1.65/1.33    ((~ ((cP @ cONE) => (?? @ (($i > $o) > $o) @ (^[Y0 : ($i > $o) > $o]: (((c_less__eq_ @ Y0 @ (cSUCC @ cONE)) & (cP @ Y0)) & (c_less__eq_ @ cZERO @ Y0)))))) = $true)),
% 1.65/1.33    inference(fool_elimination,[status(thm)],[f11])).
% 1.65/1.33  thf(f11,plain,(
% 1.65/1.33    ~((cP @ cONE) => ? [X0 : ($i > $o) > $o] : ((c_less__eq_ @ cZERO @ X0) & (cP @ X0) & (c_less__eq_ @ X0 @ (cSUCC @ cONE))))),
% 1.65/1.33    inference(rectify,[status(thm)],[f6])).
% 1.65/1.33  thf(f6,negated_conjecture,(
% 1.65/1.33    ~((cP @ cONE) => ? [X1 : ($i > $o) > $o] : ((c_less__eq_ @ cZERO @ X1) & (cP @ X1) & (c_less__eq_ @ X1 @ (cSUCC @ cONE))))),
% 1.65/1.33    inference(negated_conjecture,[status(cth)],[f5])).
% 1.65/1.33  thf(f5,conjecture,(
% 1.65/1.33    (cP @ cONE) => ? [X1 : ($i > $o) > $o] : ((c_less__eq_ @ cZERO @ X1) & (cP @ X1) & (c_less__eq_ @ X1 @ (cSUCC @ cONE)))),
% 1.65/1.33    file('/export/starexec/sandbox2/tmp/tmp.hwPzrCpAh2/DTF2THF_4661.p',cBLEDSOE7A)).
% 1.65/1.33  thf(f34,plain,(
% 1.65/1.33    ( ! [X1 : ($i > $o) > $o] : (($false = (((!! @ ((($i > $o) > $o) > $o) @ (^[Y0 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y1 : ($i > $o) > $o]: ((Y0 @ Y1) => (Y0 @ (^[Y2 : $i > $o]: (?? @ $i @ (^[Y3 : $i]: ((Y2 @ Y3) & (Y1 @ (^[Y4 : $i]: ((~ (Y3 = Y4)) & (Y2 @ Y4)))))))))))) & (Y0 @ X1)) => (Y0 @ (^[Y1 : $i > $o]: (?? @ $i @ (^[Y2 : $i]: ((Y1 @ Y2) & (?? @ $i @ (^[Y3 : $i]: (((~ (Y2 = Y3)) & (Y1 @ Y3)) & (~ (?? @ $i @ (^[Y4 : $i]: ((~ (Y3 = Y4)) & ((~ (Y2 = Y4)) & (Y1 @ Y4))))))))))))))))) & (cP @ X1)) & (!! @ ((($i > $o) > $o) > $o) @ (^[Y0 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y1 : ($i > $o) > $o]: ((Y0 @ Y1) => (Y0 @ (^[Y2 : $i > $o]: (?? @ $i @ (^[Y3 : $i]: ((Y2 @ Y3) & (Y1 @ (^[Y4 : $i]: ((~ (Y3 = Y4)) & (Y2 @ Y4)))))))))))) & (Y0 @ (^[Y1 : $i > $o]: (~ (?? @ $i @ Y1))))) => (Y0 @ X1))))))) )),
% 1.65/1.33    inference(beta_eta_normalization,[status(thm)],[f33])).
% 1.65/1.33  thf(f33,plain,(
% 1.65/1.33    ( ! [X1 : ($i > $o) > $o] : ((((^[Y0 : ($i > $o) > $o]: (((!! @ ((($i > $o) > $o) > $o) @ (^[Y1 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y2 : ($i > $o) > $o]: ((Y1 @ Y2) => (Y1 @ (^[Y3 : $i > $o]: (?? @ $i @ (^[Y4 : $i]: ((Y3 @ Y4) & (Y2 @ (^[Y5 : $i]: ((~ (Y4 = Y5)) & (Y3 @ Y5)))))))))))) & (Y1 @ Y0)) => (Y1 @ (^[Y2 : $i > $o]: (?? @ $i @ (^[Y3 : $i]: ((Y2 @ Y3) & (?? @ $i @ (^[Y4 : $i]: (((~ (Y3 = Y4)) & (Y2 @ Y4)) & (~ (?? @ $i @ (^[Y5 : $i]: ((~ (Y4 = Y5)) & ((~ (Y3 = Y5)) & (Y2 @ Y5))))))))))))))))) & (cP @ Y0)) & (!! @ ((($i > $o) > $o) > $o) @ (^[Y1 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y2 : ($i > $o) > $o]: ((Y1 @ Y2) => (Y1 @ (^[Y3 : $i > $o]: (?? @ $i @ (^[Y4 : $i]: ((Y3 @ Y4) & (Y2 @ (^[Y5 : $i]: ((~ (Y4 = Y5)) & (Y3 @ Y5)))))))))))) & (Y1 @ (^[Y2 : $i > $o]: (~ (?? @ $i @ Y2))))) => (Y1 @ Y0)))))) @ X1) = $false)) )),
% 1.65/1.33    inference(pi_clausification,[status(thm)],[f32])).
% 1.65/1.33  thf(f32,plain,(
% 1.65/1.33    ((?? @ (($i > $o) > $o) @ (^[Y0 : ($i > $o) > $o]: (((!! @ ((($i > $o) > $o) > $o) @ (^[Y1 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y2 : ($i > $o) > $o]: ((Y1 @ Y2) => (Y1 @ (^[Y3 : $i > $o]: (?? @ $i @ (^[Y4 : $i]: ((Y3 @ Y4) & (Y2 @ (^[Y5 : $i]: ((~ (Y4 = Y5)) & (Y3 @ Y5)))))))))))) & (Y1 @ Y0)) => (Y1 @ (^[Y2 : $i > $o]: (?? @ $i @ (^[Y3 : $i]: ((Y2 @ Y3) & (?? @ $i @ (^[Y4 : $i]: (((~ (Y3 = Y4)) & (Y2 @ Y4)) & (~ (?? @ $i @ (^[Y5 : $i]: ((~ (Y4 = Y5)) & ((~ (Y3 = Y5)) & (Y2 @ Y5))))))))))))))))) & (cP @ Y0)) & (!! @ ((($i > $o) > $o) > $o) @ (^[Y1 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y2 : ($i > $o) > $o]: ((Y1 @ Y2) => (Y1 @ (^[Y3 : $i > $o]: (?? @ $i @ (^[Y4 : $i]: ((Y3 @ Y4) & (Y2 @ (^[Y5 : $i]: ((~ (Y4 = Y5)) & (Y3 @ Y5)))))))))))) & (Y1 @ (^[Y2 : $i > $o]: (~ (?? @ $i @ Y2))))) => (Y1 @ Y0))))))) = $false)),
% 1.65/1.33    inference(boolean_simplification,[status(thm)],[f31])).
% 1.65/1.33  thf(f31,plain,(
% 1.65/1.33    ($false = ($true => (?? @ (($i > $o) > $o) @ (^[Y0 : ($i > $o) > $o]: (((!! @ ((($i > $o) > $o) > $o) @ (^[Y1 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y2 : ($i > $o) > $o]: ((Y1 @ Y2) => (Y1 @ (^[Y3 : $i > $o]: (?? @ $i @ (^[Y4 : $i]: ((Y3 @ Y4) & (Y2 @ (^[Y5 : $i]: ((~ (Y4 = Y5)) & (Y3 @ Y5)))))))))))) & (Y1 @ Y0)) => (Y1 @ (^[Y2 : $i > $o]: (?? @ $i @ (^[Y3 : $i]: ((Y2 @ Y3) & (?? @ $i @ (^[Y4 : $i]: (((~ (Y3 = Y4)) & (Y2 @ Y4)) & (~ (?? @ $i @ (^[Y5 : $i]: ((~ (Y4 = Y5)) & ((~ (Y3 = Y5)) & (Y2 @ Y5))))))))))))))))) & (cP @ Y0)) & (!! @ ((($i > $o) > $o) > $o) @ (^[Y1 : (($i > $o) > $o) > $o]: (((!! @ (($i > $o) > $o) @ (^[Y2 : ($i > $o) > $o]: ((Y1 @ Y2) => (Y1 @ (^[Y3 : $i > $o]: (?? @ $i @ (^[Y4 : $i]: ((Y3 @ Y4) & (Y2 @ (^[Y5 : $i]: ((~ (Y4 = Y5)) & (Y3 @ Y5)))))))))))) & (Y1 @ (^[Y2 : $i > $o]: (~ (?? @ $i @ Y2))))) => (Y1 @ Y0)))))))))),
% 1.65/1.33    inference(backward_demodulation,[status(thm)],[f26,f30])).
% 1.65/1.33  % SZS output end Proof for DTF2THF_4661
% 1.65/1.33  % (4832)------------------------------
% 1.65/1.33  % (4832)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.65/1.33  % (4832)Termination reason: Refutation
% 1.65/1.33  
% 1.65/1.33  % (4832)Memory used [KB]: 5756
% 1.65/1.33  % (4832)Time elapsed: 0.037 s
% 1.65/1.33  % (4832)Instructions burned: 35 (million)
% 1.65/1.33  % (4832)------------------------------
% 1.65/1.33  % (4832)------------------------------
% 1.65/1.33  % (4813)Success in time 0.069 s
%------------------------------------------------------------------------------