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DT2H2X---1.9.5.THM-Ref.s

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%------------------------------------------------------------------------------
% File     : DT2H2X---1.9.5
% Problem  : SEU895^5 : TPTP v9.2.1. Released v4.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : /export/starexec/sandbox2/solver/bin/run_DT2H2X /export/starexec/sandbox2/benchmark/theBenchmark.p 300

% Computer : n031.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Wed Feb 25 09:37:41 AM UTC 2026

% Result   : Theorem 1.31s 1.19s
% Output   : Refutation 1.31s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   23
%            Number of leaves      :   14
% Syntax   : Number of formulae    :  126 (   9 unt;   0 typ;  13 def)
%            Number of atoms       :  892 ( 347 equ;   0 cnn)
%            Maximal formula atoms :    4 (   7 avg)
%            Number of connectives :  982 ( 105   ~; 266   |;  88   &; 467   @)
%                                         (  13 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    7 (   4 avg)
%            Number of types       :    3 (   2 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   27 (  23 usr;  22 con; 0-2 aty)
%                                         (   0  !!;  43  ??;   0 @@+;   0 @@-)
%            Number of variables   :  111 (  66   ^;  36   !;   9   ?; 111   :)

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

thf(type_def_6,type,
    a: $tType ).

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

thf(func_def_1,type,
    a: $tType ).

thf(func_def_2,type,
    f: b > a ).

thf(func_def_3,type,
    y: b > $o ).

thf(func_def_4,type,
    x: b > $o ).

thf(func_def_16,type,
    ph1: 
      !>[X0: $tType] : X0 ).

thf(func_def_17,type,
    sK2: a ).

thf(func_def_18,type,
    sK3: b ).

thf(func_def_19,type,
    sK4: b ).

thf(func_def_20,type,
    sK5: b ).

thf(func_def_21,type,
    sK6: b ).

thf(func_def_22,type,
    sK7: b ).

thf(f193,plain,
    $false,
    inference(avatar_sat_refutation,[status(thm)],[f86,f91,f100,f105,f114,f119,f120,f121,f125,f131,f139,f148,f156,f164,f179,f192]) ).

thf(f192,plain,
    ( ~ spl0_10
    | ~ spl0_11
    | ~ spl0_13 ),
    inference(avatar_contradiction_clause,[status(thm)],[f191]) ).

thf(f191,plain,
    ( $false
    | ~ spl0_10
    | ~ spl0_11
    | ~ spl0_13 ),
    inference(subsumption_resolution,[status(thm)],[f187,f113]) ).

thf(f113,plain,
    ( ( ( f @ sK5 )
      = sK2 )
    | ~ spl0_10 ),
    inference(avatar_component_clause,[status(thm)],[f111]) ).

thf(f111,definition,
    ( spl0_10
  <=> ( ( f @ sK5 )
      = sK2 ) ),
    introduced(definition,[new_symbols(naming,[spl0_10])],[avatar_definition]) ).

thf(f187,plain,
    ( ( ( f @ sK5 )
     != sK2 )
    | ~ spl0_11
    | ~ spl0_13 ),
    inference(trivial_inequality_removal,[status(thm)],[f186]) ).

thf(f186,plain,
    ( ( ( f @ sK5 )
     != sK2 )
    | ( $false = $true )
    | ~ spl0_11
    | ~ spl0_13 ),
    inference(superposition,[status(thm)],[f128,f118]) ).

thf(f118,plain,
    ( ( ( x @ sK5 )
      = $true )
    | ~ spl0_11 ),
    inference(avatar_component_clause,[status(thm)],[f116]) ).

thf(f116,definition,
    ( spl0_11
  <=> ( ( x @ sK5 )
      = $true ) ),
    introduced(definition,[new_symbols(naming,[spl0_11])],[avatar_definition]) ).

thf(f128,plain,
    ( ! [X2: b] :
        ( ( $false
          = ( x @ X2 ) )
        | ( sK2
         != ( f @ X2 ) ) )
    | ~ spl0_13 ),
    inference(avatar_component_clause,[status(thm)],[f127]) ).

thf(f127,definition,
    ( spl0_13
  <=> ! [X2: b] :
        ( ( $false
          = ( x @ X2 ) )
        | ( sK2
         != ( f @ X2 ) ) ) ),
    introduced(definition,[new_symbols(naming,[spl0_13])],[avatar_definition]) ).

thf(f179,plain,
    ( ~ spl0_7
    | ~ spl0_8
    | ~ spl0_13 ),
    inference(avatar_contradiction_clause,[status(thm)],[f178]) ).

thf(f178,plain,
    ( $false
    | ~ spl0_7
    | ~ spl0_8
    | ~ spl0_13 ),
    inference(subsumption_resolution,[status(thm)],[f174,f99]) ).

thf(f99,plain,
    ( ( sK2
      = ( f @ sK6 ) )
    | ~ spl0_7 ),
    inference(avatar_component_clause,[status(thm)],[f97]) ).

thf(f97,definition,
    ( spl0_7
  <=> ( sK2
      = ( f @ sK6 ) ) ),
    introduced(definition,[new_symbols(naming,[spl0_7])],[avatar_definition]) ).

thf(f174,plain,
    ( ( sK2
     != ( f @ sK6 ) )
    | ~ spl0_8
    | ~ spl0_13 ),
    inference(trivial_inequality_removal,[status(thm)],[f173]) ).

thf(f173,plain,
    ( ( $false = $true )
    | ( sK2
     != ( f @ sK6 ) )
    | ~ spl0_8
    | ~ spl0_13 ),
    inference(superposition,[status(thm)],[f128,f104]) ).

thf(f104,plain,
    ( ( ( x @ sK6 )
      = $true )
    | ~ spl0_8 ),
    inference(avatar_component_clause,[status(thm)],[f102]) ).

thf(f102,definition,
    ( spl0_8
  <=> ( ( x @ sK6 )
      = $true ) ),
    introduced(definition,[new_symbols(naming,[spl0_8])],[avatar_definition]) ).

thf(f164,plain,
    ( ~ spl0_1
    | ~ spl0_9
    | ~ spl0_13 ),
    inference(avatar_contradiction_clause,[status(thm)],[f163]) ).

thf(f163,plain,
    ( $false
    | ~ spl0_1
    | ~ spl0_9
    | ~ spl0_13 ),
    inference(subsumption_resolution,[status(thm)],[f159,f109]) ).

thf(f109,plain,
    ( ( ( f @ sK3 )
      = sK2 )
    | ~ spl0_9 ),
    inference(avatar_component_clause,[status(thm)],[f107]) ).

thf(f107,definition,
    ( spl0_9
  <=> ( ( f @ sK3 )
      = sK2 ) ),
    introduced(definition,[new_symbols(naming,[spl0_9])],[avatar_definition]) ).

thf(f159,plain,
    ( ( ( f @ sK3 )
     != sK2 )
    | ~ spl0_1
    | ~ spl0_13 ),
    inference(trivial_inequality_removal,[status(thm)],[f158]) ).

thf(f158,plain,
    ( ( $false = $true )
    | ( ( f @ sK3 )
     != sK2 )
    | ~ spl0_1
    | ~ spl0_13 ),
    inference(superposition,[status(thm)],[f128,f73]) ).

thf(f73,plain,
    ( ( ( x @ sK3 )
      = $true )
    | ~ spl0_1 ),
    inference(avatar_component_clause,[status(thm)],[f71]) ).

thf(f71,definition,
    ( spl0_1
  <=> ( ( x @ sK3 )
      = $true ) ),
    introduced(definition,[new_symbols(naming,[spl0_1])],[avatar_definition]) ).

thf(f156,plain,
    ( ~ spl0_3
    | ~ spl0_9
    | ~ spl0_12 ),
    inference(avatar_contradiction_clause,[status(thm)],[f155]) ).

thf(f155,plain,
    ( $false
    | ~ spl0_3
    | ~ spl0_9
    | ~ spl0_12 ),
    inference(subsumption_resolution,[status(thm)],[f151,f109]) ).

thf(f151,plain,
    ( ( ( f @ sK3 )
     != sK2 )
    | ~ spl0_3
    | ~ spl0_12 ),
    inference(trivial_inequality_removal,[status(thm)],[f149]) ).

thf(f149,plain,
    ( ( ( f @ sK3 )
     != sK2 )
    | ( $false = $true )
    | ~ spl0_3
    | ~ spl0_12 ),
    inference(superposition,[status(thm)],[f81,f124]) ).

thf(f124,plain,
    ( ! [X2: b] :
        ( ( ( y @ X2 )
          = $false )
        | ( sK2
         != ( f @ X2 ) ) )
    | ~ spl0_12 ),
    inference(avatar_component_clause,[status(thm)],[f123]) ).

thf(f123,definition,
    ( spl0_12
  <=> ! [X2: b] :
        ( ( ( y @ X2 )
          = $false )
        | ( sK2
         != ( f @ X2 ) ) ) ),
    introduced(definition,[new_symbols(naming,[spl0_12])],[avatar_definition]) ).

thf(f81,plain,
    ( ( ( y @ sK3 )
      = $true )
    | ~ spl0_3 ),
    inference(avatar_component_clause,[status(thm)],[f79]) ).

thf(f79,definition,
    ( spl0_3
  <=> ( ( y @ sK3 )
      = $true ) ),
    introduced(definition,[new_symbols(naming,[spl0_3])],[avatar_definition]) ).

thf(f148,plain,
    ( ~ spl0_4
    | ~ spl0_5
    | ~ spl0_13 ),
    inference(avatar_contradiction_clause,[status(thm)],[f147]) ).

thf(f147,plain,
    ( $false
    | ~ spl0_4
    | ~ spl0_5
    | ~ spl0_13 ),
    inference(subsumption_resolution,[status(thm)],[f143,f85]) ).

thf(f85,plain,
    ( ( ( f @ sK7 )
      = sK2 )
    | ~ spl0_4 ),
    inference(avatar_component_clause,[status(thm)],[f83]) ).

thf(f83,definition,
    ( spl0_4
  <=> ( ( f @ sK7 )
      = sK2 ) ),
    introduced(definition,[new_symbols(naming,[spl0_4])],[avatar_definition]) ).

thf(f143,plain,
    ( ( ( f @ sK7 )
     != sK2 )
    | ~ spl0_5
    | ~ spl0_13 ),
    inference(trivial_inequality_removal,[status(thm)],[f142]) ).

thf(f142,plain,
    ( ( $false = $true )
    | ( ( f @ sK7 )
     != sK2 )
    | ~ spl0_5
    | ~ spl0_13 ),
    inference(superposition,[status(thm)],[f90,f128]) ).

thf(f90,plain,
    ( ( ( x @ sK7 )
      = $true )
    | ~ spl0_5 ),
    inference(avatar_component_clause,[status(thm)],[f88]) ).

thf(f88,definition,
    ( spl0_5
  <=> ( ( x @ sK7 )
      = $true ) ),
    introduced(definition,[new_symbols(naming,[spl0_5])],[avatar_definition]) ).

thf(f139,plain,
    ( ~ spl0_2
    | ~ spl0_6
    | ~ spl0_12 ),
    inference(avatar_contradiction_clause,[status(thm)],[f138]) ).

thf(f138,plain,
    ( $false
    | ~ spl0_2
    | ~ spl0_6
    | ~ spl0_12 ),
    inference(subsumption_resolution,[status(thm)],[f134,f95]) ).

thf(f95,plain,
    ( ( sK2
      = ( f @ sK4 ) )
    | ~ spl0_6 ),
    inference(avatar_component_clause,[status(thm)],[f93]) ).

thf(f93,definition,
    ( spl0_6
  <=> ( sK2
      = ( f @ sK4 ) ) ),
    introduced(definition,[new_symbols(naming,[spl0_6])],[avatar_definition]) ).

thf(f134,plain,
    ( ( sK2
     != ( f @ sK4 ) )
    | ~ spl0_2
    | ~ spl0_12 ),
    inference(trivial_inequality_removal,[status(thm)],[f132]) ).

thf(f132,plain,
    ( ( sK2
     != ( f @ sK4 ) )
    | ( $false = $true )
    | ~ spl0_2
    | ~ spl0_12 ),
    inference(superposition,[status(thm)],[f124,f77]) ).

thf(f77,plain,
    ( ( ( y @ sK4 )
      = $true )
    | ~ spl0_2 ),
    inference(avatar_component_clause,[status(thm)],[f75]) ).

thf(f75,definition,
    ( spl0_2
  <=> ( ( y @ sK4 )
      = $true ) ),
    introduced(definition,[new_symbols(naming,[spl0_2])],[avatar_definition]) ).

thf(f131,plain,
    ( spl0_13
    | spl0_13 ),
    inference(avatar_split_clause,[status(thm)],[f23,f127,f127]) ).

thf(f23,plain,
    ! [X2: b,X1: b] :
      ( ( ( x @ X1 )
        = $false )
      | ( sK2
       != ( f @ X2 ) )
      | ( $false
        = ( x @ X2 ) )
      | ( ( f @ X1 )
       != sK2 ) ),
    inference(binary_proxy_clausification,[status(thm)],[f21]) ).

thf(f21,plain,
    ! [X2: b,X1: b] :
      ( ( sK2
       != ( f @ X2 ) )
      | ( ( x @ X1 )
        = $false )
      | ( ( f @ X1 )
       != sK2 )
      | ( $false
        = ( ( x @ X2 )
          | ( y @ X2 ) ) ) ),
    inference(equality_proxy_clausification,[status(thm)],[f20]) ).

thf(f20,plain,
    ! [X2: b,X1: b] :
      ( ( ( x @ X1 )
        = $false )
      | ( ( ( f @ X1 )
          = sK2 )
        = $false )
      | ( sK2
       != ( f @ X2 ) )
      | ( $false
        = ( ( x @ X2 )
          | ( y @ X2 ) ) ) ),
    inference(equality_proxy_clausification,[status(thm)],[f19]) ).

thf(f19,plain,
    ! [X2: b,X1: b] :
      ( ( ( ( f @ X2 )
          = sK2 )
        = $false )
      | ( ( ( f @ X1 )
          = sK2 )
        = $false )
      | ( $false
        = ( ( x @ X2 )
          | ( y @ X2 ) ) )
      | ( ( x @ X1 )
        = $false ) ),
    inference(binary_proxy_clausification,[status(thm)],[f18]) ).

thf(f18,plain,
    ! [X2: b,X1: b] :
      ( ( ( x @ X1 )
        = $false )
      | ( $false
        = ( ( ( f @ X2 )
            = sK2 )
          & ( ( x @ X2 )
            | ( y @ X2 ) ) ) )
      | ( ( ( f @ X1 )
          = sK2 )
        = $false ) ),
    inference(binary_proxy_clausification,[status(thm)],[f17]) ).

thf(f17,plain,
    ! [X2: b,X1: b] :
      ( ( $false
        = ( ( x @ X1 )
          & ( ( f @ X1 )
            = sK2 ) ) )
      | ( $false
        = ( ( ( f @ X2 )
            = sK2 )
          & ( ( x @ X2 )
            | ( y @ X2 ) ) ) ) ),
    inference(beta_eta_normalization,[status(thm)],[f16]) ).

thf(f16,plain,
    ! [X2: b,X1: b] :
      ( ( ( ^ [Y0: b] :
              ( ( ( f @ Y0 )
                = sK2 )
              & ( ( x @ Y0 )
                | ( y @ Y0 ) ) )
          @ X2 )
        = $false )
      | ( $false
        = ( ( x @ X1 )
          & ( ( f @ X1 )
            = sK2 ) ) ) ),
    inference(pi_clausification,[status(thm)],[f15]) ).

thf(f15,plain,
    ! [X1: b] :
      ( ( ( ?? @ b
          @ ^ [Y0: b] :
              ( ( ( f @ Y0 )
                = sK2 )
              & ( ( x @ Y0 )
                | ( y @ Y0 ) ) ) )
        = $false )
      | ( $false
        = ( ( x @ X1 )
          & ( ( f @ X1 )
            = sK2 ) ) ) ),
    inference(beta_eta_normalization,[status(thm)],[f14]) ).

thf(f14,plain,
    ! [X1: b] :
      ( ( ( ^ [Y0: b] :
              ( ( x @ Y0 )
              & ( ( f @ Y0 )
                = sK2 ) )
          @ X1 )
        = $false )
      | ( ( ?? @ b
          @ ^ [Y0: b] :
              ( ( ( f @ Y0 )
                = sK2 )
              & ( ( x @ Y0 )
                | ( y @ Y0 ) ) ) )
        = $false ) ),
    inference(pi_clausification,[status(thm)],[f13]) ).

thf(f13,plain,
    ( ( ( ?? @ b
        @ ^ [Y0: b] :
            ( ( x @ Y0 )
            & ( ( f @ Y0 )
              = sK2 ) ) )
      = $false )
    | ( ( ?? @ b
        @ ^ [Y0: b] :
            ( ( ( f @ Y0 )
              = sK2 )
            & ( ( x @ Y0 )
              | ( y @ Y0 ) ) ) )
      = $false ) ),
    inference(binary_proxy_clausification,[status(thm)],[f11]) ).

thf(f11,plain,
    ( ( ( ( ?? @ b
          @ ^ [Y0: b] :
              ( ( x @ Y0 )
              & ( ( f @ Y0 )
                = sK2 ) ) )
        | ( ?? @ b
          @ ^ [Y0: b] :
              ( ( ( f @ Y0 )
                = sK2 )
              & ( y @ Y0 ) ) ) )
      = $false )
    | ( ( ?? @ b
        @ ^ [Y0: b] :
            ( ( ( f @ Y0 )
              = sK2 )
            & ( ( x @ Y0 )
              | ( y @ Y0 ) ) ) )
      = $false ) ),
    inference(binary_proxy_clausification,[status(thm)],[f9]) ).

thf(f9,plain,
    ( ( ( ?? @ b
        @ ^ [Y0: b] :
            ( ( x @ Y0 )
            & ( ( f @ Y0 )
              = sK2 ) ) )
      | ( ?? @ b
        @ ^ [Y0: b] :
            ( ( ( f @ Y0 )
              = sK2 )
            & ( y @ Y0 ) ) ) )
   != ( ?? @ b
      @ ^ [Y0: b] :
          ( ( ( f @ Y0 )
            = sK2 )
          & ( ( x @ Y0 )
            | ( y @ Y0 ) ) ) ) ),
    inference(beta_eta_normalization,[status(thm)],[f8]) ).

thf(f8,plain,
    ( ( ^ [Y0: a] :
          ( ?? @ b
          @ ^ [Y1: b] :
              ( ( ( f @ Y1 )
                = Y0 )
              & ( ( x @ Y1 )
                | ( y @ Y1 ) ) ) )
      @ sK2 )
   != ( ^ [Y0: a] :
          ( ( ?? @ b
            @ ^ [Y1: b] :
                ( ( x @ Y1 )
                & ( ( f @ Y1 )
                  = Y0 ) ) )
          | ( ?? @ b
            @ ^ [Y1: b] :
                ( ( ( f @ Y1 )
                  = Y0 )
                & ( y @ Y1 ) ) ) )
      @ sK2 ) ),
    inference(negative_extensionality,[status(thm)],[f7]) ).

thf(f7,plain,
    ( ( ^ [Y0: a] :
          ( ?? @ b
          @ ^ [Y1: b] :
              ( ( ( f @ Y1 )
                = Y0 )
              & ( ( x @ Y1 )
                | ( y @ Y1 ) ) ) ) )
   != ( ^ [Y0: a] :
          ( ( ?? @ b
            @ ^ [Y1: b] :
                ( ( x @ Y1 )
                & ( ( f @ Y1 )
                  = Y0 ) ) )
          | ( ?? @ b
            @ ^ [Y1: b] :
                ( ( ( f @ Y1 )
                  = Y0 )
                & ( y @ Y1 ) ) ) ) ) ),
    inference(cnf_transformation,[status(thm)],[f6]) ).

thf(f6,plain,
    ( ( ^ [Y0: a] :
          ( ?? @ b
          @ ^ [Y1: b] :
              ( ( ( f @ Y1 )
                = Y0 )
              & ( ( x @ Y1 )
                | ( y @ Y1 ) ) ) ) )
   != ( ^ [Y0: a] :
          ( ( ?? @ b
            @ ^ [Y1: b] :
                ( ( x @ Y1 )
                & ( ( f @ Y1 )
                  = Y0 ) ) )
          | ( ?? @ b
            @ ^ [Y1: b] :
                ( ( ( f @ Y1 )
                  = Y0 )
                & ( y @ Y1 ) ) ) ) ) ),
    inference(flattening,[status(thm)],[f5]) ).

thf(f5,plain,
    ( ( ^ [Y0: a] :
          ( ?? @ b
          @ ^ [Y1: b] :
              ( ( ( f @ Y1 )
                = Y0 )
              & ( ( x @ Y1 )
                | ( y @ Y1 ) ) ) ) )
   != ( ^ [Y0: a] :
          ( ( ?? @ b
            @ ^ [Y1: b] :
                ( ( x @ Y1 )
                & ( ( f @ Y1 )
                  = Y0 ) ) )
          | ( ?? @ b
            @ ^ [Y1: b] :
                ( ( ( f @ Y1 )
                  = Y0 )
                & ( y @ Y1 ) ) ) ) ) ),
    inference(fool_elimination,[status(thm)],[f4]) ).

thf(f4,plain,
    ( ( ^ [X0: a] :
        ? [X1: b] :
          ( ( ( y @ X1 )
            | ( x @ X1 ) )
          & ( ( f @ X1 )
            = X0 ) ) )
   != ( ^ [X2: a] :
          ( ? [X3: b] :
              ( ( y @ X3 )
              & ( ( f @ X3 )
                = X2 ) )
          | ? [X4: b] :
              ( ( ( f @ X4 )
                = X2 )
              & ( x @ X4 ) ) ) ) ),
    inference(rectify,[status(thm)],[f2]) ).

thf(f2,negated_conjecture,
    ( ( ^ [X0: a] :
        ? [X1: b] :
          ( ( ( y @ X1 )
            | ( x @ X1 ) )
          & ( ( f @ X1 )
            = X0 ) ) )
   != ( ^ [X0: a] :
          ( ? [X1: b] :
              ( ( y @ X1 )
              & ( ( f @ X1 )
                = X0 ) )
          | ? [X1: b] :
              ( ( ( f @ X1 )
                = X0 )
              & ( x @ X1 ) ) ) ) ),
    inference(negated_conjecture,[status(cth)],[f1]) ).

thf(f1,conjecture,
    ( ( ^ [X0: a] :
        ? [X1: b] :
          ( ( ( y @ X1 )
            | ( x @ X1 ) )
          & ( ( f @ X1 )
            = X0 ) ) )
    = ( ^ [X0: a] :
          ( ? [X1: b] :
              ( ( y @ X1 )
              & ( ( f @ X1 )
                = X0 ) )
          | ? [X1: b] :
              ( ( ( f @ X1 )
                = X0 )
              & ( x @ X1 ) ) ) ) ),
    file('/export/starexec/sandbox2/tmp/tmp.sUH9rlcmPK/DTF2THF_14558.p',cX5202_pme) ).

thf(f125,plain,
    ( spl0_12
    | spl0_12 ),
    inference(avatar_split_clause,[status(thm)],[f34,f123,f123]) ).

thf(f34,plain,
    ! [X2: b,X1: b] :
      ( ( ( y @ X2 )
        = $false )
      | ( ( y @ X1 )
        = $false )
      | ( sK2
       != ( f @ X2 ) )
      | ( ( f @ X1 )
       != sK2 ) ),
    inference(equality_proxy_clausification,[status(thm)],[f31]) ).

thf(f31,plain,
    ! [X2: b,X1: b] :
      ( ( ( ( f @ X2 )
          = sK2 )
        = $false )
      | ( ( f @ X1 )
       != sK2 )
      | ( ( y @ X2 )
        = $false )
      | ( ( y @ X1 )
        = $false ) ),
    inference(binary_proxy_clausification,[status(thm)],[f30]) ).

thf(f30,plain,
    ! [X2: b,X1: b] :
      ( ( ( y @ X1 )
        = $false )
      | ( $false
        = ( ( x @ X2 )
          | ( y @ X2 ) ) )
      | ( ( f @ X1 )
       != sK2 )
      | ( ( ( f @ X2 )
          = sK2 )
        = $false ) ),
    inference(equality_proxy_clausification,[status(thm)],[f29]) ).

thf(f29,plain,
    ! [X2: b,X1: b] :
      ( ( ( y @ X1 )
        = $false )
      | ( ( ( f @ X1 )
          = sK2 )
        = $false )
      | ( ( ( f @ X2 )
          = sK2 )
        = $false )
      | ( $false
        = ( ( x @ X2 )
          | ( y @ X2 ) ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f28]) ).

thf(f28,plain,
    ! [X2: b,X1: b] :
      ( ( $false
        = ( ( ( f @ X2 )
            = sK2 )
          & ( ( x @ X2 )
            | ( y @ X2 ) ) ) )
      | ( ( ( f @ X1 )
          = sK2 )
        = $false )
      | ( ( y @ X1 )
        = $false ) ),
    inference(binary_proxy_clausification,[status(thm)],[f27]) ).

thf(f27,plain,
    ! [X2: b,X1: b] :
      ( ( ( ( ( f @ X1 )
            = sK2 )
          & ( y @ X1 ) )
        = $false )
      | ( $false
        = ( ( ( f @ X2 )
            = sK2 )
          & ( ( x @ X2 )
            | ( y @ X2 ) ) ) ) ),
    inference(beta_eta_normalization,[status(thm)],[f26]) ).

thf(f26,plain,
    ! [X2: b,X1: b] :
      ( ( ( ( ( f @ X1 )
            = sK2 )
          & ( y @ X1 ) )
        = $false )
      | ( ( ^ [Y0: b] :
              ( ( ( f @ Y0 )
                = sK2 )
              & ( ( x @ Y0 )
                | ( y @ Y0 ) ) )
          @ X2 )
        = $false ) ),
    inference(pi_clausification,[status(thm)],[f25]) ).

thf(f25,plain,
    ! [X1: b] :
      ( ( ( ?? @ b
          @ ^ [Y0: b] :
              ( ( ( f @ Y0 )
                = sK2 )
              & ( ( x @ Y0 )
                | ( y @ Y0 ) ) ) )
        = $false )
      | ( ( ( ( f @ X1 )
            = sK2 )
          & ( y @ X1 ) )
        = $false ) ),
    inference(beta_eta_normalization,[status(thm)],[f24]) ).

thf(f24,plain,
    ! [X1: b] :
      ( ( ( ?? @ b
          @ ^ [Y0: b] :
              ( ( ( f @ Y0 )
                = sK2 )
              & ( ( x @ Y0 )
                | ( y @ Y0 ) ) ) )
        = $false )
      | ( ( ^ [Y0: b] :
              ( ( ( f @ Y0 )
                = sK2 )
              & ( y @ Y0 ) )
          @ X1 )
        = $false ) ),
    inference(pi_clausification,[status(thm)],[f12]) ).

thf(f12,plain,
    ( ( ( ?? @ b
        @ ^ [Y0: b] :
            ( ( ( f @ Y0 )
              = sK2 )
            & ( y @ Y0 ) ) )
      = $false )
    | ( ( ?? @ b
        @ ^ [Y0: b] :
            ( ( ( f @ Y0 )
              = sK2 )
            & ( ( x @ Y0 )
              | ( y @ Y0 ) ) ) )
      = $false ) ),
    inference(binary_proxy_clausification,[status(thm)],[f11]) ).

thf(f121,plain,
    ( spl0_6
    | spl0_11
    | spl0_9 ),
    inference(avatar_split_clause,[status(thm)],[f49,f107,f116,f93]) ).

thf(f49,plain,
    ( ( ( x @ sK5 )
      = $true )
    | ( sK2
      = ( f @ sK4 ) )
    | ( ( f @ sK3 )
      = sK2 ) ),
    inference(binary_proxy_clausification,[status(thm)],[f47]) ).

thf(f47,plain,
    ( ( ( f @ sK3 )
      = sK2 )
    | ( ( ( x @ sK5 )
        & ( ( f @ sK5 )
          = sK2 ) )
      = $true )
    | ( sK2
      = ( f @ sK4 ) ) ),
    inference(equality_proxy_clausification,[status(thm)],[f46]) ).

thf(f46,plain,
    ( ( ( ( f @ sK3 )
        = sK2 )
      = $true )
    | ( sK2
      = ( f @ sK4 ) )
    | ( ( ( x @ sK5 )
        & ( ( f @ sK5 )
          = sK2 ) )
      = $true ) ),
    inference(equality_proxy_clausification,[status(thm)],[f45]) ).

thf(f45,plain,
    ( ( ( ( f @ sK4 )
        = sK2 )
      = $true )
    | ( ( ( x @ sK5 )
        & ( ( f @ sK5 )
          = sK2 ) )
      = $true )
    | ( ( ( f @ sK3 )
        = sK2 )
      = $true ) ),
    inference(binary_proxy_clausification,[status(thm)],[f43]) ).

thf(f43,plain,
    ( ( ( ( ( f @ sK4 )
          = sK2 )
        & ( y @ sK4 ) )
      = $true )
    | ( ( ( x @ sK5 )
        & ( ( f @ sK5 )
          = sK2 ) )
      = $true )
    | ( ( ( f @ sK3 )
        = sK2 )
      = $true ) ),
    inference(beta_eta_normalization,[status(thm)],[f42]) ).

thf(f42,plain,
    ( ( ( ^ [Y0: b] :
            ( ( x @ Y0 )
            & ( ( f @ Y0 )
              = sK2 ) )
        @ sK5 )
      = $true )
    | ( ( ( ( f @ sK4 )
          = sK2 )
        & ( y @ sK4 ) )
      = $true )
    | ( ( ( f @ sK3 )
        = sK2 )
      = $true ) ),
    inference(sigma_clausification,[status(thm)],[f41]) ).

thf(f41,plain,
    ( ( ( ?? @ b
        @ ^ [Y0: b] :
            ( ( x @ Y0 )
            & ( ( f @ Y0 )
              = sK2 ) ) )
      = $true )
    | ( ( ( f @ sK3 )
        = sK2 )
      = $true )
    | ( ( ( ( f @ sK4 )
          = sK2 )
        & ( y @ sK4 ) )
      = $true ) ),
    inference(binary_proxy_clausification,[status(thm)],[f39]) ).

thf(f39,plain,
    ( ( ( ( ( f @ sK3 )
          = sK2 )
        & ( ( x @ sK3 )
          | ( y @ sK3 ) ) )
      = $true )
    | ( ( ?? @ b
        @ ^ [Y0: b] :
            ( ( x @ Y0 )
            & ( ( f @ Y0 )
              = sK2 ) ) )
      = $true )
    | ( ( ( ( f @ sK4 )
          = sK2 )
        & ( y @ sK4 ) )
      = $true ) ),
    inference(beta_eta_normalization,[status(thm)],[f38]) ).

thf(f38,plain,
    ( ( ( ( ( f @ sK3 )
          = sK2 )
        & ( ( x @ sK3 )
          | ( y @ sK3 ) ) )
      = $true )
    | ( ( ^ [Y0: b] :
            ( ( ( f @ Y0 )
              = sK2 )
            & ( y @ Y0 ) )
        @ sK4 )
      = $true )
    | ( ( ?? @ b
        @ ^ [Y0: b] :
            ( ( x @ Y0 )
            & ( ( f @ Y0 )
              = sK2 ) ) )
      = $true ) ),
    inference(sigma_clausification,[status(thm)],[f37]) ).

thf(f37,plain,
    ( ( ( ?? @ b
        @ ^ [Y0: b] :
            ( ( ( f @ Y0 )
              = sK2 )
            & ( y @ Y0 ) ) )
      = $true )
    | ( ( ?? @ b
        @ ^ [Y0: b] :
            ( ( x @ Y0 )
            & ( ( f @ Y0 )
              = sK2 ) ) )
      = $true )
    | ( ( ( ( f @ sK3 )
          = sK2 )
        & ( ( x @ sK3 )
          | ( y @ sK3 ) ) )
      = $true ) ),
    inference(binary_proxy_clausification,[status(thm)],[f36]) ).

thf(f36,plain,
    ( ( ( ( ?? @ b
          @ ^ [Y0: b] :
              ( ( x @ Y0 )
              & ( ( f @ Y0 )
                = sK2 ) ) )
        | ( ?? @ b
          @ ^ [Y0: b] :
              ( ( ( f @ Y0 )
                = sK2 )
              & ( y @ Y0 ) ) ) )
      = $true )
    | ( ( ( ( f @ sK3 )
          = sK2 )
        & ( ( x @ sK3 )
          | ( y @ sK3 ) ) )
      = $true ) ),
    inference(beta_eta_normalization,[status(thm)],[f35]) ).

thf(f35,plain,
    ( ( ( ^ [Y0: b] :
            ( ( ( f @ Y0 )
              = sK2 )
            & ( ( x @ Y0 )
              | ( y @ Y0 ) ) )
        @ sK3 )
      = $true )
    | ( ( ( ?? @ b
          @ ^ [Y0: b] :
              ( ( x @ Y0 )
              & ( ( f @ Y0 )
                = sK2 ) ) )
        | ( ?? @ b
          @ ^ [Y0: b] :
              ( ( ( f @ Y0 )
                = sK2 )
              & ( y @ Y0 ) ) ) )
      = $true ) ),
    inference(sigma_clausification,[status(thm)],[f10]) ).

thf(f10,plain,
    ( ( ( ?? @ b
        @ ^ [Y0: b] :
            ( ( ( f @ Y0 )
              = sK2 )
            & ( ( x @ Y0 )
              | ( y @ Y0 ) ) ) )
      = $true )
    | ( ( ( ?? @ b
          @ ^ [Y0: b] :
              ( ( x @ Y0 )
              & ( ( f @ Y0 )
                = sK2 ) ) )
        | ( ?? @ b
          @ ^ [Y0: b] :
              ( ( ( f @ Y0 )
                = sK2 )
              & ( y @ Y0 ) ) ) )
      = $true ) ),
    inference(binary_proxy_clausification,[status(thm)],[f9]) ).

thf(f120,plain,
    ( spl0_10
    | spl0_9
    | spl0_6 ),
    inference(avatar_split_clause,[status(thm)],[f50,f93,f107,f111]) ).

thf(f50,plain,
    ( ( ( f @ sK5 )
      = sK2 )
    | ( ( f @ sK3 )
      = sK2 )
    | ( sK2
      = ( f @ sK4 ) ) ),
    inference(equality_proxy_clausification,[status(thm)],[f48]) ).

thf(f48,plain,
    ( ( ( ( f @ sK5 )
        = sK2 )
      = $true )
    | ( sK2
      = ( f @ sK4 ) )
    | ( ( f @ sK3 )
      = sK2 ) ),
    inference(binary_proxy_clausification,[status(thm)],[f47]) ).

thf(f119,plain,
    ( spl0_9
    | spl0_2
    | spl0_11 ),
    inference(avatar_split_clause,[status(thm)],[f53,f116,f75,f107]) ).

thf(f53,plain,
    ( ( ( x @ sK5 )
      = $true )
    | ( ( y @ sK4 )
      = $true )
    | ( ( f @ sK3 )
      = sK2 ) ),
    inference(equality_proxy_clausification,[status(thm)],[f52]) ).

thf(f52,plain,
    ( ( ( y @ sK4 )
      = $true )
    | ( ( x @ sK5 )
      = $true )
    | ( ( ( f @ sK3 )
        = sK2 )
      = $true ) ),
    inference(binary_proxy_clausification,[status(thm)],[f44]) ).

thf(f44,plain,
    ( ( ( ( x @ sK5 )
        & ( ( f @ sK5 )
          = sK2 ) )
      = $true )
    | ( ( ( f @ sK3 )
        = sK2 )
      = $true )
    | ( ( y @ sK4 )
      = $true ) ),
    inference(binary_proxy_clausification,[status(thm)],[f43]) ).

thf(f114,plain,
    ( spl0_9
    | spl0_2
    | spl0_10 ),
    inference(avatar_split_clause,[status(thm)],[f55,f111,f75,f107]) ).

thf(f55,plain,
    ( ( ( f @ sK3 )
      = sK2 )
    | ( ( y @ sK4 )
      = $true )
    | ( ( f @ sK5 )
      = sK2 ) ),
    inference(equality_proxy_clausification,[status(thm)],[f54]) ).

thf(f54,plain,
    ( ( ( ( f @ sK5 )
        = sK2 )
      = $true )
    | ( ( f @ sK3 )
      = sK2 )
    | ( ( y @ sK4 )
      = $true ) ),
    inference(equality_proxy_clausification,[status(thm)],[f51]) ).

thf(f51,plain,
    ( ( ( ( f @ sK3 )
        = sK2 )
      = $true )
    | ( ( ( f @ sK5 )
        = sK2 )
      = $true )
    | ( ( y @ sK4 )
      = $true ) ),
    inference(binary_proxy_clausification,[status(thm)],[f44]) ).

thf(f105,plain,
    ( spl0_3
    | spl0_8
    | spl0_1
    | spl0_6 ),
    inference(avatar_split_clause,[status(thm)],[f63,f93,f71,f102,f79]) ).

thf(f63,plain,
    ( ( sK2
      = ( f @ sK4 ) )
    | ( ( y @ sK3 )
      = $true )
    | ( ( x @ sK3 )
      = $true )
    | ( ( x @ sK6 )
      = $true ) ),
    inference(binary_proxy_clausification,[status(thm)],[f61]) ).

thf(f61,plain,
    ( ( sK2
      = ( f @ sK4 ) )
    | ( ( y @ sK3 )
      = $true )
    | ( ( ( x @ sK6 )
        & ( ( f @ sK6 )
          = sK2 ) )
      = $true )
    | ( ( x @ sK3 )
      = $true ) ),
    inference(beta_eta_normalization,[status(thm)],[f60]) ).

thf(f60,plain,
    ( ( ( x @ sK3 )
      = $true )
    | ( sK2
      = ( f @ sK4 ) )
    | ( ( y @ sK3 )
      = $true )
    | ( ( ^ [Y0: b] :
            ( ( x @ Y0 )
            & ( ( f @ Y0 )
              = sK2 ) )
        @ sK6 )
      = $true ) ),
    inference(sigma_clausification,[status(thm)],[f59]) ).

thf(f59,plain,
    ( ( ( ?? @ b
        @ ^ [Y0: b] :
            ( ( x @ Y0 )
            & ( ( f @ Y0 )
              = sK2 ) ) )
      = $true )
    | ( sK2
      = ( f @ sK4 ) )
    | ( ( y @ sK3 )
      = $true )
    | ( ( x @ sK3 )
      = $true ) ),
    inference(equality_proxy_clausification,[status(thm)],[f58]) ).

thf(f58,plain,
    ( ( ( y @ sK3 )
      = $true )
    | ( ( ( f @ sK4 )
        = sK2 )
      = $true )
    | ( ( x @ sK3 )
      = $true )
    | ( ( ?? @ b
        @ ^ [Y0: b] :
            ( ( x @ Y0 )
            & ( ( f @ Y0 )
              = sK2 ) ) )
      = $true ) ),
    inference(binary_proxy_clausification,[status(thm)],[f56]) ).

thf(f56,plain,
    ( ( ( ( ( f @ sK4 )
          = sK2 )
        & ( y @ sK4 ) )
      = $true )
    | ( ( x @ sK3 )
      = $true )
    | ( ( y @ sK3 )
      = $true )
    | ( ( ?? @ b
        @ ^ [Y0: b] :
            ( ( x @ Y0 )
            & ( ( f @ Y0 )
              = sK2 ) ) )
      = $true ) ),
    inference(binary_proxy_clausification,[status(thm)],[f40]) ).

thf(f40,plain,
    ( ( ( ( x @ sK3 )
        | ( y @ sK3 ) )
      = $true )
    | ( ( ( ( f @ sK4 )
          = sK2 )
        & ( y @ sK4 ) )
      = $true )
    | ( ( ?? @ b
        @ ^ [Y0: b] :
            ( ( x @ Y0 )
            & ( ( f @ Y0 )
              = sK2 ) ) )
      = $true ) ),
    inference(binary_proxy_clausification,[status(thm)],[f39]) ).

thf(f100,plain,
    ( spl0_6
    | spl0_3
    | spl0_1
    | spl0_7 ),
    inference(avatar_split_clause,[status(thm)],[f64,f97,f71,f79,f93]) ).

thf(f64,plain,
    ( ( sK2
      = ( f @ sK4 ) )
    | ( ( x @ sK3 )
      = $true )
    | ( ( y @ sK3 )
      = $true )
    | ( sK2
      = ( f @ sK6 ) ) ),
    inference(equality_proxy_clausification,[status(thm)],[f62]) ).

thf(f62,plain,
    ( ( ( y @ sK3 )
      = $true )
    | ( ( ( f @ sK6 )
        = sK2 )
      = $true )
    | ( ( x @ sK3 )
      = $true )
    | ( sK2
      = ( f @ sK4 ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f61]) ).

thf(f91,plain,
    ( spl0_3
    | spl0_2
    | spl0_1
    | spl0_5 ),
    inference(avatar_split_clause,[status(thm)],[f68,f88,f71,f75,f79]) ).

thf(f68,plain,
    ( ( ( y @ sK3 )
      = $true )
    | ( ( x @ sK3 )
      = $true )
    | ( ( y @ sK4 )
      = $true )
    | ( ( x @ sK7 )
      = $true ) ),
    inference(binary_proxy_clausification,[status(thm)],[f66]) ).

thf(f66,plain,
    ( ( ( y @ sK3 )
      = $true )
    | ( ( y @ sK4 )
      = $true )
    | ( $true
      = ( ( x @ sK7 )
        & ( ( f @ sK7 )
          = sK2 ) ) )
    | ( ( x @ sK3 )
      = $true ) ),
    inference(beta_eta_normalization,[status(thm)],[f65]) ).

thf(f65,plain,
    ( ( ( x @ sK3 )
      = $true )
    | ( ( y @ sK3 )
      = $true )
    | ( ( y @ sK4 )
      = $true )
    | ( ( ^ [Y0: b] :
            ( ( x @ Y0 )
            & ( ( f @ Y0 )
              = sK2 ) )
        @ sK7 )
      = $true ) ),
    inference(sigma_clausification,[status(thm)],[f57]) ).

thf(f57,plain,
    ( ( ( x @ sK3 )
      = $true )
    | ( ( y @ sK3 )
      = $true )
    | ( ( ?? @ b
        @ ^ [Y0: b] :
            ( ( x @ Y0 )
            & ( ( f @ Y0 )
              = sK2 ) ) )
      = $true )
    | ( ( y @ sK4 )
      = $true ) ),
    inference(binary_proxy_clausification,[status(thm)],[f56]) ).

thf(f86,plain,
    ( spl0_1
    | spl0_2
    | spl0_3
    | spl0_4 ),
    inference(avatar_split_clause,[status(thm)],[f69,f83,f79,f75,f71]) ).

thf(f69,plain,
    ( ( ( x @ sK3 )
      = $true )
    | ( ( f @ sK7 )
      = sK2 )
    | ( ( y @ sK3 )
      = $true )
    | ( ( y @ sK4 )
      = $true ) ),
    inference(equality_proxy_clausification,[status(thm)],[f67]) ).

thf(f67,plain,
    ( ( ( y @ sK4 )
      = $true )
    | ( ( ( f @ sK7 )
        = sK2 )
      = $true )
    | ( ( x @ sK3 )
      = $true )
    | ( ( y @ sK3 )
      = $true ) ),
    inference(binary_proxy_clausification,[status(thm)],[f66]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.11  % Problem  : SEU895^5 : TPTP v9.2.1. Released v4.0.0.
% 0.00/0.12  % Command  : /export/starexec/sandbox2/solver/bin/run_DT2H2X /export/starexec/sandbox2/benchmark/theBenchmark.p 300
% 0.13/0.33  % Computer : n031.cluster.edu
% 0.13/0.33  % Model    : x86_64 x86_64
% 0.13/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.33  % Memory   : 8042.1875MB
% 0.13/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.33  % CPULimit : 300
% 0.13/0.33  % WCLimit  : 300
% 0.13/0.33  % DateTime : Tue Feb 24 12:37:18 EST 2026
% 0.13/0.33  % CPUTime  : 
% 0.13/0.33  Running /export/starexec/sandbox2/solver/bin/run_DT2H2X /export/starexec/sandbox2/benchmark/theBenchmark.p 300
% 0.17/0.42  ---- Original DTF file ---
% 0.17/0.42  thf(spec,logic,$$dhol).
% 0.17/0.42  %------------------------------------------------------------------------------
% 0.17/0.42  % File     : SEU895^5 : TPTP v9.2.1. Released v4.0.0.
% 0.17/0.42  % Domain   : Set Theory
% 0.17/0.42  % Problem  : TPS problem X5202
% 0.17/0.42  % Version  : Especial.
% 0.17/0.42  % English  :
% 0.17/0.42  
% 0.17/0.42  % Refs     : [Bro09] Brown (2009), Email to Geoff Sutcliffe
% 0.17/0.42  % Source   : [Bro09]
% 0.17/0.42  % Names    : tps_0392 [Bro09]
% 0.17/0.42  %          : X5202 [TPS]
% 0.17/0.42  %          : X5206 [TPS]
% 0.17/0.42  
% 0.17/0.42  % Status   : Theorem
% 0.17/0.42  % Rating   : 0.00 v8.2.0, 0.08 v8.1.0, 0.00 v7.4.0, 0.11 v7.2.0, 0.00 v7.1.0, 0.12 v7.0.0, 0.14 v6.4.0, 0.17 v6.3.0, 0.20 v6.2.0, 0.00 v6.1.0, 0.14 v5.5.0, 0.17 v5.4.0, 0.20 v5.3.0, 0.40 v5.2.0, 0.20 v5.1.0, 0.40 v5.0.0, 0.20 v4.1.0, 0.00 v4.0.1, 0.33 v4.0.0
% 0.17/0.42  % Syntax   : Number of formulae    :    6 (   1 unt;   5 typ;   0 def)
% 0.17/0.42  %            Number of atoms       :    8 (   4 equ;   0 cnn)
% 0.17/0.42  %            Maximal formula atoms :    1 (   8 avg)
% 0.17/0.42  %            Number of connectives :   12 (   0   ~;   2   |;   3   &;   7   @)
% 0.17/0.42  %                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
% 0.17/0.42  %            Maximal formula depth :    1 (   1 avg)
% 0.17/0.42  %            Number of types       :    3 (   2 usr)
% 0.17/0.42  %            Number of type conns  :    3 (   3   >;   0   *;   0   +;   0  <<)
% 0.17/0.42  %            Number of symbols     :    4 (   3 usr;   0 con; 1-2 aty)
% 0.17/0.42  %            Number of variables   :    5 (   2   ^;   0   !;   3   ?;   5   :)
% 0.17/0.42  % SPC      : TH0_THM_EQU_NAR
% 0.17/0.42  
% 0.17/0.42  % Comments : This problem is from the TPS library. Copyright (c) 2009 The TPS
% 0.17/0.42  %            project in the Department of Mathematical Sciences at Carnegie
% 0.17/0.42  %            Mellon University. Distributed under the Creative Commons copyleft
% 0.17/0.42  %            license: http://creativecommons.org/licenses/by-sa/3.0/
% 0.17/0.42  %          : Polymorphic definitions expanded.
% 0.17/0.42  %------------------------------------------------------------------------------
% 0.17/0.42  thf(b_type,type,
% 0.17/0.42      b: $tType ).
% 0.17/0.42  
% 0.17/0.42  thf(a_type,type,
% 0.17/0.42      a: $tType ).
% 0.17/0.42  
% 0.17/0.42  thf(f,type,
% 0.17/0.42      f: b > a ).
% 0.17/0.42  
% 0.17/0.42  thf(y,type,
% 0.17/0.42      y: b > $o ).
% 0.17/0.42  
% 0.17/0.42  thf(x,type,
% 0.17/0.42      x: b > $o ).
% 0.17/0.42  
% 0.17/0.42  thf(cX5202_pme,conjecture,
% 0.17/0.42      ( ( ^ [Xz: a] :
% 0.17/0.42          ? [Xt: b] :
% 0.17/0.42            ( ( ( x @ Xt )
% 0.17/0.42              | ( y @ Xt ) )
% 0.17/0.42            & ( Xz
% 0.17/0.42              = ( f @ Xt ) ) ) )
% 0.17/0.42      = ( ^ [Xz: a] :
% 0.17/0.42            ( ? [Xt: b] :
% 0.17/0.42                ( ( x @ Xt )
% 0.17/0.42                & ( Xz
% 0.17/0.42                  = ( f @ Xt ) ) )
% 0.17/0.42            | ? [Xt: b] :
% 0.17/0.42                ( ( y @ Xt )
% 0.17/0.42                & ( Xz
% 0.17/0.42                  = ( f @ Xt ) ) ) ) ) ) ).
% 0.17/0.42  
% 0.17/0.42  %------------------------------------------------------------------------------
% 0.17/0.42  ------------------------
% 1.31/1.16  ---- Embedded in THF ---
% 1.31/1.17  %%% This output was generated by embedproblem, version 1.9.5 (library version 1.9).
% 1.31/1.17  %%% Generated on Tue Feb 24 12:37:19 EST 2026
% 1.31/1.17  %%% using '$$dhol' embedding, version 1.3.0.
% 1.31/1.17  %%% Logic specification used:
% 1.31/1.17  %%% thf(spec, logic, $$dhol).
% 1.31/1.17  
% 1.31/1.17  % SZS output start ListOfTHF for /export/starexec/sandbox2/tmp/tmp.sUH9rlcmPK/DTF2DTF14558.p
% See solution above
% 1.31/1.17  ------------------------
% 1.31/1.17  ---- Cleaned THF ---
% 1.31/1.17  thf(b_type,type,
% 1.31/1.17      b: $tType ).
% 1.31/1.17  
% 1.31/1.17  thf(a_type,type,
% 1.31/1.17      a: $tType ).
% 1.31/1.17  
% 1.31/1.17  thf(f,type,
% 1.31/1.17      f: b > a ).
% 1.31/1.17  
% 1.31/1.17  thf(y,type,
% 1.31/1.17      y: b > $o ).
% 1.31/1.17  
% 1.31/1.17  thf(x,type,
% 1.31/1.17      x: b > $o ).
% 1.31/1.17  
% 1.31/1.17  thf(cX5202_pme,conjecture,
% 1.31/1.17      ( ( ^ [Xz: a] :
% 1.31/1.17          ? [Xt: b] :
% 1.31/1.17            ( ( ( x @ Xt )
% 1.31/1.17              | ( y @ Xt ) )
% 1.31/1.17            & ( Xz
% 1.31/1.17              = ( f @ Xt ) ) ) )
% 1.31/1.17      = ( ^ [Xz: a] :
% 1.31/1.17            ( ? [Xt: b] :
% 1.31/1.17                ( ( x @ Xt )
% 1.31/1.17                & ( Xz
% 1.31/1.17                  = ( f @ Xt ) ) )
% 1.31/1.17            | ? [Xt: b] :
% 1.31/1.17                ( ( y @ Xt )
% 1.31/1.17                & ( Xz
% 1.31/1.17                  = ( f @ Xt ) ) ) ) ) ) ).
% 1.31/1.17  ------------------------
% 1.31/1.19  % (14658)lrs+1002_1:8_bd=off:fd=off:hud=10:tnu=1:i=183:si=on:rtra=on_0 on DTF2THF_14558 for (2999ds/183Mi)
% 1.31/1.19  % (14658)First to succeed.
% 1.31/1.19  % (14664)lrs+1004_1:128_cond=on:e2e=on:sp=weighted_frequency:i=18:si=on:rtra=on_0 on DTF2THF_14558 for (2999ds/18Mi)
% 1.31/1.19  % (14661)lrs+10_1:1_au=on:inj=on:i=2:si=on:rtra=on_0 on DTF2THF_14558 for (2999ds/2Mi)
% 1.31/1.19  % (14660)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_14558 for (2999ds/27Mi)
% 1.31/1.19  % (14663)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_14558 for (2999ds/275Mi)
% 1.31/1.19  % (14662)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_14558 for (2999ds/2Mi)
% 1.31/1.19  % (14658)Refutation found. Thanks to Tanya!
% 1.31/1.19  % SZS status Theorem for DTF2THF_14558
% 1.31/1.19  % SZS output start Proof for DTF2THF_14558
% 1.31/1.19  thf(type_def_5, type, b: $tType).
% 1.31/1.19  thf(type_def_6, type, a: $tType).
% 1.31/1.19  thf(func_def_0, type, b: $tType).
% 1.31/1.19  thf(func_def_1, type, a: $tType).
% 1.31/1.19  thf(func_def_2, type, f: b > a).
% 1.31/1.19  thf(func_def_3, type, y: b > $o).
% 1.31/1.19  thf(func_def_4, type, x: b > $o).
% 1.31/1.19  thf(func_def_16, type, ph1: !>[X0: $tType]:(X0)).
% 1.31/1.19  thf(func_def_17, type, sK2: a).
% 1.31/1.19  thf(func_def_18, type, sK3: b).
% 1.31/1.19  thf(func_def_19, type, sK4: b).
% 1.31/1.19  thf(func_def_20, type, sK5: b).
% 1.31/1.19  thf(func_def_21, type, sK6: b).
% 1.31/1.19  thf(func_def_22, type, sK7: b).
% 1.31/1.19  thf(f193,plain,(
% 1.31/1.19    $false),
% 1.31/1.19    inference(avatar_sat_refutation,[status(thm)],[f86,f91,f100,f105,f114,f119,f120,f121,f125,f131,f139,f148,f156,f164,f179,f192])).
% 1.31/1.19  thf(f192,plain,(
% 1.31/1.19    ~spl0_10 | ~spl0_11 | ~spl0_13),
% 1.31/1.19    inference(avatar_contradiction_clause,[status(thm)],[f191])).
% 1.31/1.19  thf(f191,plain,(
% 1.31/1.19    $false | (~spl0_10 | ~spl0_11 | ~spl0_13)),
% 1.31/1.19    inference(subsumption_resolution,[status(thm)],[f187,f113])).
% 1.31/1.19  thf(f113,plain,(
% 1.31/1.20    ((f @ sK5) = sK2) | ~spl0_10),
% 1.31/1.20    inference(avatar_component_clause,[status(thm)],[f111])).
% 1.31/1.20  thf(f111,definition,(
% 1.31/1.20    spl0_10 <=> ((f @ sK5) = sK2)),
% 1.31/1.20    introduced(definition,[new_symbols(naming,[spl0_10])],[avatar_definition])).
% 1.31/1.20  thf(f187,plain,(
% 1.31/1.20    ((f @ sK5) != sK2) | (~spl0_11 | ~spl0_13)),
% 1.31/1.20    inference(trivial_inequality_removal,[status(thm)],[f186])).
% 1.31/1.20  thf(f186,plain,(
% 1.31/1.20    ((f @ sK5) != sK2) | ($false = $true) | (~spl0_11 | ~spl0_13)),
% 1.31/1.20    inference(superposition,[status(thm)],[f128,f118])).
% 1.31/1.20  thf(f118,plain,(
% 1.31/1.20    ((x @ sK5) = $true) | ~spl0_11),
% 1.31/1.20    inference(avatar_component_clause,[status(thm)],[f116])).
% 1.31/1.20  thf(f116,definition,(
% 1.31/1.20    spl0_11 <=> ((x @ sK5) = $true)),
% 1.31/1.20    introduced(definition,[new_symbols(naming,[spl0_11])],[avatar_definition])).
% 1.31/1.20  thf(f128,plain,(
% 1.31/1.20    ( ! [X2 : b] : (($false = (x @ X2)) | (sK2 != (f @ X2))) ) | ~spl0_13),
% 1.31/1.20    inference(avatar_component_clause,[status(thm)],[f127])).
% 1.31/1.20  thf(f127,definition,(
% 1.31/1.20    spl0_13 <=> ! [X2 : b] : (($false = (x @ X2)) | (sK2 != (f @ X2)))),
% 1.31/1.20    introduced(definition,[new_symbols(naming,[spl0_13])],[avatar_definition])).
% 1.31/1.20  thf(f179,plain,(
% 1.31/1.20    ~spl0_7 | ~spl0_8 | ~spl0_13),
% 1.31/1.20    inference(avatar_contradiction_clause,[status(thm)],[f178])).
% 1.31/1.20  thf(f178,plain,(
% 1.31/1.20    $false | (~spl0_7 | ~spl0_8 | ~spl0_13)),
% 1.31/1.20    inference(subsumption_resolution,[status(thm)],[f174,f99])).
% 1.31/1.20  thf(f99,plain,(
% 1.31/1.20    (sK2 = (f @ sK6)) | ~spl0_7),
% 1.31/1.20    inference(avatar_component_clause,[status(thm)],[f97])).
% 1.31/1.20  thf(f97,definition,(
% 1.31/1.20    spl0_7 <=> (sK2 = (f @ sK6))),
% 1.31/1.20    introduced(definition,[new_symbols(naming,[spl0_7])],[avatar_definition])).
% 1.31/1.20  thf(f174,plain,(
% 1.31/1.20    (sK2 != (f @ sK6)) | (~spl0_8 | ~spl0_13)),
% 1.31/1.20    inference(trivial_inequality_removal,[status(thm)],[f173])).
% 1.31/1.20  thf(f173,plain,(
% 1.31/1.20    ($false = $true) | (sK2 != (f @ sK6)) | (~spl0_8 | ~spl0_13)),
% 1.31/1.20    inference(superposition,[status(thm)],[f128,f104])).
% 1.31/1.20  thf(f104,plain,(
% 1.31/1.20    ((x @ sK6) = $true) | ~spl0_8),
% 1.31/1.20    inference(avatar_component_clause,[status(thm)],[f102])).
% 1.31/1.20  thf(f102,definition,(
% 1.31/1.20    spl0_8 <=> ((x @ sK6) = $true)),
% 1.31/1.20    introduced(definition,[new_symbols(naming,[spl0_8])],[avatar_definition])).
% 1.31/1.20  thf(f164,plain,(
% 1.31/1.20    ~spl0_1 | ~spl0_9 | ~spl0_13),
% 1.31/1.20    inference(avatar_contradiction_clause,[status(thm)],[f163])).
% 1.31/1.20  thf(f163,plain,(
% 1.31/1.20    $false | (~spl0_1 | ~spl0_9 | ~spl0_13)),
% 1.31/1.20    inference(subsumption_resolution,[status(thm)],[f159,f109])).
% 1.31/1.20  thf(f109,plain,(
% 1.31/1.20    ((f @ sK3) = sK2) | ~spl0_9),
% 1.31/1.20    inference(avatar_component_clause,[status(thm)],[f107])).
% 1.31/1.20  thf(f107,definition,(
% 1.31/1.20    spl0_9 <=> ((f @ sK3) = sK2)),
% 1.31/1.20    introduced(definition,[new_symbols(naming,[spl0_9])],[avatar_definition])).
% 1.31/1.20  thf(f159,plain,(
% 1.31/1.20    ((f @ sK3) != sK2) | (~spl0_1 | ~spl0_13)),
% 1.31/1.20    inference(trivial_inequality_removal,[status(thm)],[f158])).
% 1.31/1.20  thf(f158,plain,(
% 1.31/1.20    ($false = $true) | ((f @ sK3) != sK2) | (~spl0_1 | ~spl0_13)),
% 1.31/1.20    inference(superposition,[status(thm)],[f128,f73])).
% 1.31/1.20  thf(f73,plain,(
% 1.31/1.20    ((x @ sK3) = $true) | ~spl0_1),
% 1.31/1.20    inference(avatar_component_clause,[status(thm)],[f71])).
% 1.31/1.20  thf(f71,definition,(
% 1.31/1.20    spl0_1 <=> ((x @ sK3) = $true)),
% 1.31/1.20    introduced(definition,[new_symbols(naming,[spl0_1])],[avatar_definition])).
% 1.31/1.20  thf(f156,plain,(
% 1.31/1.20    ~spl0_3 | ~spl0_9 | ~spl0_12),
% 1.31/1.20    inference(avatar_contradiction_clause,[status(thm)],[f155])).
% 1.31/1.20  thf(f155,plain,(
% 1.31/1.20    $false | (~spl0_3 | ~spl0_9 | ~spl0_12)),
% 1.31/1.20    inference(subsumption_resolution,[status(thm)],[f151,f109])).
% 1.31/1.20  thf(f151,plain,(
% 1.31/1.20    ((f @ sK3) != sK2) | (~spl0_3 | ~spl0_12)),
% 1.31/1.20    inference(trivial_inequality_removal,[status(thm)],[f149])).
% 1.31/1.20  thf(f149,plain,(
% 1.31/1.20    ((f @ sK3) != sK2) | ($false = $true) | (~spl0_3 | ~spl0_12)),
% 1.31/1.20    inference(superposition,[status(thm)],[f81,f124])).
% 1.31/1.20  thf(f124,plain,(
% 1.31/1.20    ( ! [X2 : b] : (((y @ X2) = $false) | (sK2 != (f @ X2))) ) | ~spl0_12),
% 1.31/1.20    inference(avatar_component_clause,[status(thm)],[f123])).
% 1.31/1.20  thf(f123,definition,(
% 1.31/1.20    spl0_12 <=> ! [X2 : b] : (((y @ X2) = $false) | (sK2 != (f @ X2)))),
% 1.31/1.20    introduced(definition,[new_symbols(naming,[spl0_12])],[avatar_definition])).
% 1.31/1.20  thf(f81,plain,(
% 1.31/1.20    ((y @ sK3) = $true) | ~spl0_3),
% 1.31/1.20    inference(avatar_component_clause,[status(thm)],[f79])).
% 1.31/1.20  thf(f79,definition,(
% 1.31/1.20    spl0_3 <=> ((y @ sK3) = $true)),
% 1.31/1.20    introduced(definition,[new_symbols(naming,[spl0_3])],[avatar_definition])).
% 1.31/1.20  thf(f148,plain,(
% 1.31/1.20    ~spl0_4 | ~spl0_5 | ~spl0_13),
% 1.31/1.20    inference(avatar_contradiction_clause,[status(thm)],[f147])).
% 1.31/1.20  thf(f147,plain,(
% 1.31/1.20    $false | (~spl0_4 | ~spl0_5 | ~spl0_13)),
% 1.31/1.20    inference(subsumption_resolution,[status(thm)],[f143,f85])).
% 1.31/1.20  thf(f85,plain,(
% 1.31/1.20    ((f @ sK7) = sK2) | ~spl0_4),
% 1.31/1.20    inference(avatar_component_clause,[status(thm)],[f83])).
% 1.31/1.20  thf(f83,definition,(
% 1.31/1.20    spl0_4 <=> ((f @ sK7) = sK2)),
% 1.31/1.20    introduced(definition,[new_symbols(naming,[spl0_4])],[avatar_definition])).
% 1.31/1.20  thf(f143,plain,(
% 1.31/1.20    ((f @ sK7) != sK2) | (~spl0_5 | ~spl0_13)),
% 1.31/1.20    inference(trivial_inequality_removal,[status(thm)],[f142])).
% 1.31/1.20  thf(f142,plain,(
% 1.31/1.20    ($false = $true) | ((f @ sK7) != sK2) | (~spl0_5 | ~spl0_13)),
% 1.31/1.20    inference(superposition,[status(thm)],[f90,f128])).
% 1.31/1.20  thf(f90,plain,(
% 1.31/1.20    ((x @ sK7) = $true) | ~spl0_5),
% 1.31/1.20    inference(avatar_component_clause,[status(thm)],[f88])).
% 1.31/1.20  thf(f88,definition,(
% 1.31/1.20    spl0_5 <=> ((x @ sK7) = $true)),
% 1.31/1.20    introduced(definition,[new_symbols(naming,[spl0_5])],[avatar_definition])).
% 1.31/1.20  thf(f139,plain,(
% 1.31/1.20    ~spl0_2 | ~spl0_6 | ~spl0_12),
% 1.31/1.20    inference(avatar_contradiction_clause,[status(thm)],[f138])).
% 1.31/1.20  thf(f138,plain,(
% 1.31/1.20    $false | (~spl0_2 | ~spl0_6 | ~spl0_12)),
% 1.31/1.20    inference(subsumption_resolution,[status(thm)],[f134,f95])).
% 1.31/1.20  thf(f95,plain,(
% 1.31/1.20    (sK2 = (f @ sK4)) | ~spl0_6),
% 1.31/1.20    inference(avatar_component_clause,[status(thm)],[f93])).
% 1.31/1.20  thf(f93,definition,(
% 1.31/1.20    spl0_6 <=> (sK2 = (f @ sK4))),
% 1.31/1.20    introduced(definition,[new_symbols(naming,[spl0_6])],[avatar_definition])).
% 1.31/1.20  thf(f134,plain,(
% 1.31/1.20    (sK2 != (f @ sK4)) | (~spl0_2 | ~spl0_12)),
% 1.31/1.20    inference(trivial_inequality_removal,[status(thm)],[f132])).
% 1.31/1.20  thf(f132,plain,(
% 1.31/1.20    (sK2 != (f @ sK4)) | ($false = $true) | (~spl0_2 | ~spl0_12)),
% 1.31/1.20    inference(superposition,[status(thm)],[f124,f77])).
% 1.31/1.20  thf(f77,plain,(
% 1.31/1.20    ((y @ sK4) = $true) | ~spl0_2),
% 1.31/1.20    inference(avatar_component_clause,[status(thm)],[f75])).
% 1.31/1.20  thf(f75,definition,(
% 1.31/1.20    spl0_2 <=> ((y @ sK4) = $true)),
% 1.31/1.20    introduced(definition,[new_symbols(naming,[spl0_2])],[avatar_definition])).
% 1.31/1.20  thf(f131,plain,(
% 1.31/1.20    spl0_13 | spl0_13),
% 1.31/1.20    inference(avatar_split_clause,[status(thm)],[f23,f127,f127])).
% 1.31/1.20  thf(f23,plain,(
% 1.31/1.20    ( ! [X2 : b,X1 : b] : (((x @ X1) = $false) | (sK2 != (f @ X2)) | ($false = (x @ X2)) | ((f @ X1) != sK2)) )),
% 1.31/1.20    inference(binary_proxy_clausification,[status(thm)],[f21])).
% 1.31/1.20  thf(f21,plain,(
% 1.31/1.20    ( ! [X2 : b,X1 : b] : ((sK2 != (f @ X2)) | ((x @ X1) = $false) | ((f @ X1) != sK2) | ($false = ((x @ X2) | (y @ X2)))) )),
% 1.31/1.20    inference(equality_proxy_clausification,[status(thm)],[f20])).
% 1.31/1.20  thf(f20,plain,(
% 1.31/1.20    ( ! [X2 : b,X1 : b] : (((x @ X1) = $false) | (((f @ X1) = sK2) = $false) | (sK2 != (f @ X2)) | ($false = ((x @ X2) | (y @ X2)))) )),
% 1.31/1.20    inference(equality_proxy_clausification,[status(thm)],[f19])).
% 1.31/1.20  thf(f19,plain,(
% 1.31/1.20    ( ! [X2 : b,X1 : b] : ((((f @ X2) = sK2) = $false) | (((f @ X1) = sK2) = $false) | ($false = ((x @ X2) | (y @ X2))) | ((x @ X1) = $false)) )),
% 1.31/1.20    inference(binary_proxy_clausification,[status(thm)],[f18])).
% 1.31/1.20  thf(f18,plain,(
% 1.31/1.20    ( ! [X2 : b,X1 : b] : (((x @ X1) = $false) | ($false = (((f @ X2) = sK2) & ((x @ X2) | (y @ X2)))) | (((f @ X1) = sK2) = $false)) )),
% 1.31/1.20    inference(binary_proxy_clausification,[status(thm)],[f17])).
% 1.31/1.20  thf(f17,plain,(
% 1.31/1.20    ( ! [X2 : b,X1 : b] : (($false = ((x @ X1) & ((f @ X1) = sK2))) | ($false = (((f @ X2) = sK2) & ((x @ X2) | (y @ X2))))) )),
% 1.31/1.20    inference(beta_eta_normalization,[status(thm)],[f16])).
% 1.31/1.20  thf(f16,plain,(
% 1.31/1.20    ( ! [X2 : b,X1 : b] : ((((^[Y0 : b]: (((f @ Y0) = sK2) & ((x @ Y0) | (y @ Y0)))) @ X2) = $false) | ($false = ((x @ X1) & ((f @ X1) = sK2)))) )),
% 1.31/1.20    inference(pi_clausification,[status(thm)],[f15])).
% 1.31/1.20  thf(f15,plain,(
% 1.31/1.20    ( ! [X1 : b] : (((?? @ b @ (^[Y0 : b]: (((f @ Y0) = sK2) & ((x @ Y0) | (y @ Y0))))) = $false) | ($false = ((x @ X1) & ((f @ X1) = sK2)))) )),
% 1.31/1.20    inference(beta_eta_normalization,[status(thm)],[f14])).
% 1.31/1.20  thf(f14,plain,(
% 1.31/1.20    ( ! [X1 : b] : ((((^[Y0 : b]: ((x @ Y0) & ((f @ Y0) = sK2))) @ X1) = $false) | ((?? @ b @ (^[Y0 : b]: (((f @ Y0) = sK2) & ((x @ Y0) | (y @ Y0))))) = $false)) )),
% 1.31/1.20    inference(pi_clausification,[status(thm)],[f13])).
% 1.31/1.20  thf(f13,plain,(
% 1.31/1.20    ((?? @ b @ (^[Y0 : b]: ((x @ Y0) & ((f @ Y0) = sK2)))) = $false) | ((?? @ b @ (^[Y0 : b]: (((f @ Y0) = sK2) & ((x @ Y0) | (y @ Y0))))) = $false)),
% 1.31/1.20    inference(binary_proxy_clausification,[status(thm)],[f11])).
% 1.31/1.20  thf(f11,plain,(
% 1.31/1.20    (((?? @ b @ (^[Y0 : b]: ((x @ Y0) & ((f @ Y0) = sK2)))) | (?? @ b @ (^[Y0 : b]: (((f @ Y0) = sK2) & (y @ Y0))))) = $false) | ((?? @ b @ (^[Y0 : b]: (((f @ Y0) = sK2) & ((x @ Y0) | (y @ Y0))))) = $false)),
% 1.31/1.20    inference(binary_proxy_clausification,[status(thm)],[f9])).
% 1.31/1.20  thf(f9,plain,(
% 1.31/1.20    (((?? @ b @ (^[Y0 : b]: ((x @ Y0) & ((f @ Y0) = sK2)))) | (?? @ b @ (^[Y0 : b]: (((f @ Y0) = sK2) & (y @ Y0))))) != (?? @ b @ (^[Y0 : b]: (((f @ Y0) = sK2) & ((x @ Y0) | (y @ Y0))))))),
% 1.31/1.20    inference(beta_eta_normalization,[status(thm)],[f8])).
% 1.31/1.20  thf(f8,plain,(
% 1.31/1.20    (((^[Y0 : a]: (?? @ b @ (^[Y1 : b]: (((f @ Y1) = Y0) & ((x @ Y1) | (y @ Y1)))))) @ sK2) != ((^[Y0 : a]: ((?? @ b @ (^[Y1 : b]: ((x @ Y1) & ((f @ Y1) = Y0)))) | (?? @ b @ (^[Y1 : b]: (((f @ Y1) = Y0) & (y @ Y1)))))) @ sK2))),
% 1.31/1.20    inference(negative_extensionality,[status(thm)],[f7])).
% 1.31/1.20  thf(f7,plain,(
% 1.31/1.20    ((^[Y0 : a]: (?? @ b @ (^[Y1 : b]: (((f @ Y1) = Y0) & ((x @ Y1) | (y @ Y1)))))) != (^[Y0 : a]: ((?? @ b @ (^[Y1 : b]: ((x @ Y1) & ((f @ Y1) = Y0)))) | (?? @ b @ (^[Y1 : b]: (((f @ Y1) = Y0) & (y @ Y1)))))))),
% 1.31/1.20    inference(cnf_transformation,[status(thm)],[f6])).
% 1.31/1.20  thf(f6,plain,(
% 1.31/1.20    ((^[Y0 : a]: (?? @ b @ (^[Y1 : b]: (((f @ Y1) = Y0) & ((x @ Y1) | (y @ Y1)))))) != (^[Y0 : a]: ((?? @ b @ (^[Y1 : b]: ((x @ Y1) & ((f @ Y1) = Y0)))) | (?? @ b @ (^[Y1 : b]: (((f @ Y1) = Y0) & (y @ Y1)))))))),
% 1.31/1.20    inference(flattening,[status(thm)],[f5])).
% 1.31/1.20  thf(f5,plain,(
% 1.31/1.20    ~((^[Y0 : a]: (?? @ b @ (^[Y1 : b]: (((f @ Y1) = Y0) & ((x @ Y1) | (y @ Y1)))))) = (^[Y0 : a]: ((?? @ b @ (^[Y1 : b]: ((x @ Y1) & ((f @ Y1) = Y0)))) | (?? @ b @ (^[Y1 : b]: (((f @ Y1) = Y0) & (y @ Y1)))))))),
% 1.31/1.20    inference(fool_elimination,[status(thm)],[f4])).
% 1.31/1.20  thf(f4,plain,(
% 1.31/1.20    ~((^[X0 : a] : (? [X1 : b] : (((y @ X1) | (x @ X1)) & ((f @ X1) = X0)))) = (^[X2 : a] : (? [X3 : b] : ((y @ X3) & ((f @ X3) = X2)) | ? [X4 : b] : (((f @ X4) = X2) & (x @ X4)))))),
% 1.31/1.20    inference(rectify,[status(thm)],[f2])).
% 1.31/1.20  thf(f2,negated_conjecture,(
% 1.31/1.20    ~((^[X0 : a] : (? [X1 : b] : (((y @ X1) | (x @ X1)) & ((f @ X1) = X0)))) = (^[X0 : a] : (? [X1 : b] : ((y @ X1) & ((f @ X1) = X0)) | ? [X1 : b] : (((f @ X1) = X0) & (x @ X1)))))),
% 1.31/1.20    inference(negated_conjecture,[status(cth)],[f1])).
% 1.31/1.20  thf(f1,conjecture,(
% 1.31/1.20    ((^[X0 : a] : (? [X1 : b] : (((y @ X1) | (x @ X1)) & ((f @ X1) = X0)))) = (^[X0 : a] : (? [X1 : b] : ((y @ X1) & ((f @ X1) = X0)) | ? [X1 : b] : (((f @ X1) = X0) & (x @ X1)))))),
% 1.31/1.20    file('/export/starexec/sandbox2/tmp/tmp.sUH9rlcmPK/DTF2THF_14558.p',cX5202_pme)).
% 1.31/1.20  thf(f125,plain,(
% 1.31/1.20    spl0_12 | spl0_12),
% 1.31/1.20    inference(avatar_split_clause,[status(thm)],[f34,f123,f123])).
% 1.31/1.20  thf(f34,plain,(
% 1.31/1.20    ( ! [X2 : b,X1 : b] : (((y @ X2) = $false) | ((y @ X1) = $false) | (sK2 != (f @ X2)) | ((f @ X1) != sK2)) )),
% 1.31/1.20    inference(equality_proxy_clausification,[status(thm)],[f31])).
% 1.31/1.20  thf(f31,plain,(
% 1.31/1.20    ( ! [X2 : b,X1 : b] : ((((f @ X2) = sK2) = $false) | ((f @ X1) != sK2) | ((y @ X2) = $false) | ((y @ X1) = $false)) )),
% 1.31/1.20    inference(binary_proxy_clausification,[status(thm)],[f30])).
% 1.31/1.20  thf(f30,plain,(
% 1.31/1.20    ( ! [X2 : b,X1 : b] : (((y @ X1) = $false) | ($false = ((x @ X2) | (y @ X2))) | ((f @ X1) != sK2) | (((f @ X2) = sK2) = $false)) )),
% 1.31/1.20    inference(equality_proxy_clausification,[status(thm)],[f29])).
% 1.31/1.20  thf(f29,plain,(
% 1.31/1.20    ( ! [X2 : b,X1 : b] : (((y @ X1) = $false) | (((f @ X1) = sK2) = $false) | (((f @ X2) = sK2) = $false) | ($false = ((x @ X2) | (y @ X2)))) )),
% 1.31/1.20    inference(binary_proxy_clausification,[status(thm)],[f28])).
% 1.31/1.20  thf(f28,plain,(
% 1.31/1.20    ( ! [X2 : b,X1 : b] : (($false = (((f @ X2) = sK2) & ((x @ X2) | (y @ X2)))) | (((f @ X1) = sK2) = $false) | ((y @ X1) = $false)) )),
% 1.31/1.20    inference(binary_proxy_clausification,[status(thm)],[f27])).
% 1.31/1.20  thf(f27,plain,(
% 1.31/1.20    ( ! [X2 : b,X1 : b] : (((((f @ X1) = sK2) & (y @ X1)) = $false) | ($false = (((f @ X2) = sK2) & ((x @ X2) | (y @ X2))))) )),
% 1.31/1.20    inference(beta_eta_normalization,[status(thm)],[f26])).
% 1.31/1.20  thf(f26,plain,(
% 1.31/1.20    ( ! [X2 : b,X1 : b] : (((((f @ X1) = sK2) & (y @ X1)) = $false) | (((^[Y0 : b]: (((f @ Y0) = sK2) & ((x @ Y0) | (y @ Y0)))) @ X2) = $false)) )),
% 1.31/1.20    inference(pi_clausification,[status(thm)],[f25])).
% 1.31/1.20  thf(f25,plain,(
% 1.31/1.20    ( ! [X1 : b] : (((?? @ b @ (^[Y0 : b]: (((f @ Y0) = sK2) & ((x @ Y0) | (y @ Y0))))) = $false) | ((((f @ X1) = sK2) & (y @ X1)) = $false)) )),
% 1.31/1.20    inference(beta_eta_normalization,[status(thm)],[f24])).
% 1.31/1.20  thf(f24,plain,(
% 1.31/1.20    ( ! [X1 : b] : (((?? @ b @ (^[Y0 : b]: (((f @ Y0) = sK2) & ((x @ Y0) | (y @ Y0))))) = $false) | (((^[Y0 : b]: (((f @ Y0) = sK2) & (y @ Y0))) @ X1) = $false)) )),
% 1.31/1.20    inference(pi_clausification,[status(thm)],[f12])).
% 1.31/1.20  thf(f12,plain,(
% 1.31/1.20    ((?? @ b @ (^[Y0 : b]: (((f @ Y0) = sK2) & (y @ Y0)))) = $false) | ((?? @ b @ (^[Y0 : b]: (((f @ Y0) = sK2) & ((x @ Y0) | (y @ Y0))))) = $false)),
% 1.31/1.20    inference(binary_proxy_clausification,[status(thm)],[f11])).
% 1.31/1.20  thf(f121,plain,(
% 1.31/1.20    spl0_6 | spl0_11 | spl0_9),
% 1.31/1.20    inference(avatar_split_clause,[status(thm)],[f49,f107,f116,f93])).
% 1.31/1.20  thf(f49,plain,(
% 1.31/1.20    ((x @ sK5) = $true) | (sK2 = (f @ sK4)) | ((f @ sK3) = sK2)),
% 1.31/1.20    inference(binary_proxy_clausification,[status(thm)],[f47])).
% 1.31/1.20  thf(f47,plain,(
% 1.31/1.20    ((f @ sK3) = sK2) | (((x @ sK5) & ((f @ sK5) = sK2)) = $true) | (sK2 = (f @ sK4))),
% 1.31/1.20    inference(equality_proxy_clausification,[status(thm)],[f46])).
% 1.31/1.20  thf(f46,plain,(
% 1.31/1.20    (((f @ sK3) = sK2) = $true) | (sK2 = (f @ sK4)) | (((x @ sK5) & ((f @ sK5) = sK2)) = $true)),
% 1.31/1.20    inference(equality_proxy_clausification,[status(thm)],[f45])).
% 1.31/1.20  thf(f45,plain,(
% 1.31/1.20    (((f @ sK4) = sK2) = $true) | (((x @ sK5) & ((f @ sK5) = sK2)) = $true) | (((f @ sK3) = sK2) = $true)),
% 1.31/1.20    inference(binary_proxy_clausification,[status(thm)],[f43])).
% 1.31/1.20  thf(f43,plain,(
% 1.31/1.20    ((((f @ sK4) = sK2) & (y @ sK4)) = $true) | (((x @ sK5) & ((f @ sK5) = sK2)) = $true) | (((f @ sK3) = sK2) = $true)),
% 1.31/1.20    inference(beta_eta_normalization,[status(thm)],[f42])).
% 1.31/1.20  thf(f42,plain,(
% 1.31/1.20    (((^[Y0 : b]: ((x @ Y0) & ((f @ Y0) = sK2))) @ sK5) = $true) | ((((f @ sK4) = sK2) & (y @ sK4)) = $true) | (((f @ sK3) = sK2) = $true)),
% 1.31/1.20    inference(sigma_clausification,[status(thm)],[f41])).
% 1.31/1.20  thf(f41,plain,(
% 1.31/1.20    ((?? @ b @ (^[Y0 : b]: ((x @ Y0) & ((f @ Y0) = sK2)))) = $true) | (((f @ sK3) = sK2) = $true) | ((((f @ sK4) = sK2) & (y @ sK4)) = $true)),
% 1.31/1.20    inference(binary_proxy_clausification,[status(thm)],[f39])).
% 1.31/1.20  thf(f39,plain,(
% 1.31/1.20    ((((f @ sK3) = sK2) & ((x @ sK3) | (y @ sK3))) = $true) | ((?? @ b @ (^[Y0 : b]: ((x @ Y0) & ((f @ Y0) = sK2)))) = $true) | ((((f @ sK4) = sK2) & (y @ sK4)) = $true)),
% 1.31/1.20    inference(beta_eta_normalization,[status(thm)],[f38])).
% 1.31/1.20  thf(f38,plain,(
% 1.31/1.20    ((((f @ sK3) = sK2) & ((x @ sK3) | (y @ sK3))) = $true) | (((^[Y0 : b]: (((f @ Y0) = sK2) & (y @ Y0))) @ sK4) = $true) | ((?? @ b @ (^[Y0 : b]: ((x @ Y0) & ((f @ Y0) = sK2)))) = $true)),
% 1.31/1.20    inference(sigma_clausification,[status(thm)],[f37])).
% 1.31/1.20  thf(f37,plain,(
% 1.31/1.20    ((?? @ b @ (^[Y0 : b]: (((f @ Y0) = sK2) & (y @ Y0)))) = $true) | ((?? @ b @ (^[Y0 : b]: ((x @ Y0) & ((f @ Y0) = sK2)))) = $true) | ((((f @ sK3) = sK2) & ((x @ sK3) | (y @ sK3))) = $true)),
% 1.31/1.20    inference(binary_proxy_clausification,[status(thm)],[f36])).
% 1.31/1.20  thf(f36,plain,(
% 1.31/1.20    (((?? @ b @ (^[Y0 : b]: ((x @ Y0) & ((f @ Y0) = sK2)))) | (?? @ b @ (^[Y0 : b]: (((f @ Y0) = sK2) & (y @ Y0))))) = $true) | ((((f @ sK3) = sK2) & ((x @ sK3) | (y @ sK3))) = $true)),
% 1.31/1.20    inference(beta_eta_normalization,[status(thm)],[f35])).
% 1.31/1.20  thf(f35,plain,(
% 1.31/1.20    (((^[Y0 : b]: (((f @ Y0) = sK2) & ((x @ Y0) | (y @ Y0)))) @ sK3) = $true) | (((?? @ b @ (^[Y0 : b]: ((x @ Y0) & ((f @ Y0) = sK2)))) | (?? @ b @ (^[Y0 : b]: (((f @ Y0) = sK2) & (y @ Y0))))) = $true)),
% 1.31/1.20    inference(sigma_clausification,[status(thm)],[f10])).
% 1.31/1.20  thf(f10,plain,(
% 1.31/1.20    ((?? @ b @ (^[Y0 : b]: (((f @ Y0) = sK2) & ((x @ Y0) | (y @ Y0))))) = $true) | (((?? @ b @ (^[Y0 : b]: ((x @ Y0) & ((f @ Y0) = sK2)))) | (?? @ b @ (^[Y0 : b]: (((f @ Y0) = sK2) & (y @ Y0))))) = $true)),
% 1.31/1.20    inference(binary_proxy_clausification,[status(thm)],[f9])).
% 1.31/1.20  thf(f120,plain,(
% 1.31/1.20    spl0_10 | spl0_9 | spl0_6),
% 1.31/1.20    inference(avatar_split_clause,[status(thm)],[f50,f93,f107,f111])).
% 1.31/1.20  thf(f50,plain,(
% 1.31/1.20    ((f @ sK5) = sK2) | ((f @ sK3) = sK2) | (sK2 = (f @ sK4))),
% 1.31/1.20    inference(equality_proxy_clausification,[status(thm)],[f48])).
% 1.31/1.20  thf(f48,plain,(
% 1.31/1.20    (((f @ sK5) = sK2) = $true) | (sK2 = (f @ sK4)) | ((f @ sK3) = sK2)),
% 1.31/1.20    inference(binary_proxy_clausification,[status(thm)],[f47])).
% 1.31/1.20  thf(f119,plain,(
% 1.31/1.20    spl0_9 | spl0_2 | spl0_11),
% 1.31/1.20    inference(avatar_split_clause,[status(thm)],[f53,f116,f75,f107])).
% 1.31/1.20  thf(f53,plain,(
% 1.31/1.20    ((x @ sK5) = $true) | ((y @ sK4) = $true) | ((f @ sK3) = sK2)),
% 1.31/1.20    inference(equality_proxy_clausification,[status(thm)],[f52])).
% 1.31/1.20  thf(f52,plain,(
% 1.31/1.20    ((y @ sK4) = $true) | ((x @ sK5) = $true) | (((f @ sK3) = sK2) = $true)),
% 1.31/1.20    inference(binary_proxy_clausification,[status(thm)],[f44])).
% 1.31/1.20  thf(f44,plain,(
% 1.31/1.20    (((x @ sK5) & ((f @ sK5) = sK2)) = $true) | (((f @ sK3) = sK2) = $true) | ((y @ sK4) = $true)),
% 1.31/1.20    inference(binary_proxy_clausification,[status(thm)],[f43])).
% 1.31/1.20  thf(f114,plain,(
% 1.31/1.20    spl0_9 | spl0_2 | spl0_10),
% 1.31/1.20    inference(avatar_split_clause,[status(thm)],[f55,f111,f75,f107])).
% 1.31/1.20  thf(f55,plain,(
% 1.31/1.20    ((f @ sK3) = sK2) | ((y @ sK4) = $true) | ((f @ sK5) = sK2)),
% 1.31/1.20    inference(equality_proxy_clausification,[status(thm)],[f54])).
% 1.31/1.20  thf(f54,plain,(
% 1.31/1.20    (((f @ sK5) = sK2) = $true) | ((f @ sK3) = sK2) | ((y @ sK4) = $true)),
% 1.31/1.20    inference(equality_proxy_clausification,[status(thm)],[f51])).
% 1.31/1.20  thf(f51,plain,(
% 1.31/1.20    (((f @ sK3) = sK2) = $true) | (((f @ sK5) = sK2) = $true) | ((y @ sK4) = $true)),
% 1.31/1.20    inference(binary_proxy_clausification,[status(thm)],[f44])).
% 1.31/1.20  thf(f105,plain,(
% 1.31/1.20    spl0_3 | spl0_8 | spl0_1 | spl0_6),
% 1.31/1.20    inference(avatar_split_clause,[status(thm)],[f63,f93,f71,f102,f79])).
% 1.31/1.20  thf(f63,plain,(
% 1.31/1.20    (sK2 = (f @ sK4)) | ((y @ sK3) = $true) | ((x @ sK3) = $true) | ((x @ sK6) = $true)),
% 1.31/1.20    inference(binary_proxy_clausification,[status(thm)],[f61])).
% 1.31/1.20  thf(f61,plain,(
% 1.31/1.20    (sK2 = (f @ sK4)) | ((y @ sK3) = $true) | (((x @ sK6) & ((f @ sK6) = sK2)) = $true) | ((x @ sK3) = $true)),
% 1.31/1.20    inference(beta_eta_normalization,[status(thm)],[f60])).
% 1.31/1.20  thf(f60,plain,(
% 1.31/1.20    ((x @ sK3) = $true) | (sK2 = (f @ sK4)) | ((y @ sK3) = $true) | (((^[Y0 : b]: ((x @ Y0) & ((f @ Y0) = sK2))) @ sK6) = $true)),
% 1.31/1.20    inference(sigma_clausification,[status(thm)],[f59])).
% 1.31/1.20  thf(f59,plain,(
% 1.31/1.20    ((?? @ b @ (^[Y0 : b]: ((x @ Y0) & ((f @ Y0) = sK2)))) = $true) | (sK2 = (f @ sK4)) | ((y @ sK3) = $true) | ((x @ sK3) = $true)),
% 1.31/1.20    inference(equality_proxy_clausification,[status(thm)],[f58])).
% 1.31/1.20  thf(f58,plain,(
% 1.31/1.20    ((y @ sK3) = $true) | (((f @ sK4) = sK2) = $true) | ((x @ sK3) = $true) | ((?? @ b @ (^[Y0 : b]: ((x @ Y0) & ((f @ Y0) = sK2)))) = $true)),
% 1.31/1.20    inference(binary_proxy_clausification,[status(thm)],[f56])).
% 1.31/1.20  thf(f56,plain,(
% 1.31/1.20    ((((f @ sK4) = sK2) & (y @ sK4)) = $true) | ((x @ sK3) = $true) | ((y @ sK3) = $true) | ((?? @ b @ (^[Y0 : b]: ((x @ Y0) & ((f @ Y0) = sK2)))) = $true)),
% 1.31/1.20    inference(binary_proxy_clausification,[status(thm)],[f40])).
% 1.31/1.20  thf(f40,plain,(
% 1.31/1.20    (((x @ sK3) | (y @ sK3)) = $true) | ((((f @ sK4) = sK2) & (y @ sK4)) = $true) | ((?? @ b @ (^[Y0 : b]: ((x @ Y0) & ((f @ Y0) = sK2)))) = $true)),
% 1.31/1.20    inference(binary_proxy_clausification,[status(thm)],[f39])).
% 1.31/1.20  thf(f100,plain,(
% 1.31/1.20    spl0_6 | spl0_3 | spl0_1 | spl0_7),
% 1.31/1.20    inference(avatar_split_clause,[status(thm)],[f64,f97,f71,f79,f93])).
% 1.31/1.20  thf(f64,plain,(
% 1.31/1.20    (sK2 = (f @ sK4)) | ((x @ sK3) = $true) | ((y @ sK3) = $true) | (sK2 = (f @ sK6))),
% 1.31/1.20    inference(equality_proxy_clausification,[status(thm)],[f62])).
% 1.31/1.20  thf(f62,plain,(
% 1.31/1.20    ((y @ sK3) = $true) | (((f @ sK6) = sK2) = $true) | ((x @ sK3) = $true) | (sK2 = (f @ sK4))),
% 1.31/1.20    inference(binary_proxy_clausification,[status(thm)],[f61])).
% 1.31/1.20  thf(f91,plain,(
% 1.31/1.20    spl0_3 | spl0_2 | spl0_1 | spl0_5),
% 1.31/1.20    inference(avatar_split_clause,[status(thm)],[f68,f88,f71,f75,f79])).
% 1.31/1.20  thf(f68,plain,(
% 1.31/1.20    ((y @ sK3) = $true) | ((x @ sK3) = $true) | ((y @ sK4) = $true) | ((x @ sK7) = $true)),
% 1.31/1.20    inference(binary_proxy_clausification,[status(thm)],[f66])).
% 1.31/1.20  thf(f66,plain,(
% 1.31/1.20    ((y @ sK3) = $true) | ((y @ sK4) = $true) | ($true = ((x @ sK7) & ((f @ sK7) = sK2))) | ((x @ sK3) = $true)),
% 1.31/1.20    inference(beta_eta_normalization,[status(thm)],[f65])).
% 1.31/1.20  thf(f65,plain,(
% 1.31/1.20    ((x @ sK3) = $true) | ((y @ sK3) = $true) | ((y @ sK4) = $true) | (((^[Y0 : b]: ((x @ Y0) & ((f @ Y0) = sK2))) @ sK7) = $true)),
% 1.31/1.20    inference(sigma_clausification,[status(thm)],[f57])).
% 1.31/1.20  thf(f57,plain,(
% 1.31/1.20    ((x @ sK3) = $true) | ((y @ sK3) = $true) | ((?? @ b @ (^[Y0 : b]: ((x @ Y0) & ((f @ Y0) = sK2)))) = $true) | ((y @ sK4) = $true)),
% 1.31/1.20    inference(binary_proxy_clausification,[status(thm)],[f56])).
% 1.31/1.20  thf(f86,plain,(
% 1.31/1.20    spl0_1 | spl0_2 | spl0_3 | spl0_4),
% 1.31/1.20    inference(avatar_split_clause,[status(thm)],[f69,f83,f79,f75,f71])).
% 1.31/1.20  thf(f69,plain,(
% 1.31/1.20    ((x @ sK3) = $true) | ((f @ sK7) = sK2) | ((y @ sK3) = $true) | ((y @ sK4) = $true)),
% 1.31/1.20    inference(equality_proxy_clausification,[status(thm)],[f67])).
% 1.31/1.20  thf(f67,plain,(
% 1.31/1.20    ((y @ sK4) = $true) | (((f @ sK7) = sK2) = $true) | ((x @ sK3) = $true) | ((y @ sK3) = $true)),
% 1.31/1.20    inference(binary_proxy_clausification,[status(thm)],[f66])).
% 1.31/1.20  % SZS output end Proof for DTF2THF_14558
% 1.31/1.20  % (14658)------------------------------
% 1.31/1.20  % (14658)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.31/1.20  % (14658)Termination reason: Refutation
% 1.31/1.20  
% 1.31/1.20  % (14658)Memory used [KB]: 5628
% 1.31/1.20  % (14658)Time elapsed: 0.007 s
% 1.31/1.20  % (14658)Instructions burned: 9 (million)
% 1.31/1.20  % (14658)------------------------------
% 1.31/1.20  % (14658)------------------------------
% 1.31/1.20  % (14657)Success in time 0.017 s
%------------------------------------------------------------------------------