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DT2H2X---1.9.5.THM-Ref.s

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%------------------------------------------------------------------------------
% File     : DT2H2X---1.9.5
% Problem  : SET613^5 : TPTP v9.2.1. Released v4.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : /export/starexec/sandbox/solver/bin/run_DT2H2X /export/starexec/sandbox/benchmark/theBenchmark.p 300

% Computer : n025.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 09:31:55 AM UTC 2026

% Result   : Theorem 1.41s 1.29s
% Output   : Refutation 1.41s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   21
%            Number of leaves      :    6
% Syntax   : Number of formulae    :   66 (  10 unt;   0 typ;   4 def)
%            Number of atoms       :  508 ( 131 equ;   0 cnn)
%            Maximal formula atoms :    4 (   7 avg)
%            Number of connectives :  609 ( 107   ~; 129   |;  94   &; 274   @)
%                                         (   4 <=>;   1  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    5 (   3 avg)
%            Number of types       :    2 (   1 usr)
%            Number of type conns  :   12 (  12   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   12 (   9 usr;   7 con; 0-2 aty)
%            Number of variables   :   32 (  20   ^;   8   !;   4   ?;  32   :)

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

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

thf(func_def_2,type,
    vEPSILON: 
      !>[X0: $tType] : ( ( X0 > $o ) > X0 ) ).

thf(func_def_10,type,
    sK0: a > $o ).

thf(func_def_11,type,
    sK1: a > $o ).

thf(func_def_13,type,
    ph3: 
      !>[X0: $tType] : X0 ).

thf(func_def_14,type,
    sK4: a ).

thf(f114,plain,
    $false,
    inference(avatar_sat_refutation,[status(thm)],[f95,f96,f103,f104,f110,f113]) ).

thf(f113,plain,
    ( ~ spl2_1
    | ~ spl2_2 ),
    inference(avatar_contradiction_clause,[status(thm)],[f112]) ).

thf(f112,plain,
    ( $false
    | ~ spl2_1
    | ~ spl2_2 ),
    inference(trivial_inequality_removal,[status(thm)],[f111]) ).

thf(f111,plain,
    ( ( $false = $true )
    | ~ spl2_1
    | ~ spl2_2 ),
    inference(backward_demodulation,[status(thm)],[f79,f83]) ).

thf(f83,plain,
    ( ( $false
      = ( sK0 @ sK4 ) )
    | ~ spl2_2 ),
    inference(avatar_component_clause,[status(thm)],[f81]) ).

thf(f81,definition,
    ( spl2_2
  <=> ( $false
      = ( sK0 @ sK4 ) ) ),
    introduced(definition,[new_symbols(naming,[spl2_2])],[avatar_definition]) ).

thf(f79,plain,
    ( ( $true
      = ( sK0 @ sK4 ) )
    | ~ spl2_1 ),
    inference(avatar_component_clause,[status(thm)],[f77]) ).

thf(f77,definition,
    ( spl2_1
  <=> ( $true
      = ( sK0 @ sK4 ) ) ),
    introduced(definition,[new_symbols(naming,[spl2_1])],[avatar_definition]) ).

thf(f110,plain,
    ( ~ spl2_3
    | ~ spl2_4 ),
    inference(avatar_contradiction_clause,[status(thm)],[f109]) ).

thf(f109,plain,
    ( $false
    | ~ spl2_3
    | ~ spl2_4 ),
    inference(trivial_inequality_removal,[status(thm)],[f108]) ).

thf(f108,plain,
    ( ( $false = $true )
    | ~ spl2_3
    | ~ spl2_4 ),
    inference(backward_demodulation,[status(thm)],[f87,f91]) ).

thf(f91,plain,
    ( ( $false
      = ( sK1 @ sK4 ) )
    | ~ spl2_4 ),
    inference(avatar_component_clause,[status(thm)],[f89]) ).

thf(f89,definition,
    ( spl2_4
  <=> ( $false
      = ( sK1 @ sK4 ) ) ),
    introduced(definition,[new_symbols(naming,[spl2_4])],[avatar_definition]) ).

thf(f87,plain,
    ( ( ( sK1 @ sK4 )
      = $true )
    | ~ spl2_3 ),
    inference(avatar_component_clause,[status(thm)],[f85]) ).

thf(f85,definition,
    ( spl2_3
  <=> ( ( sK1 @ sK4 )
      = $true ) ),
    introduced(definition,[new_symbols(naming,[spl2_3])],[avatar_definition]) ).

thf(f104,plain,
    ( spl2_1
    | spl2_4 ),
    inference(avatar_split_clause,[status(thm)],[f29,f89,f77]) ).

thf(f29,plain,
    ( ( $true
      = ( sK0 @ sK4 ) )
    | ( $false
      = ( sK1 @ sK4 ) ) ),
    inference(duplicate_literal_removal,[status(thm)],[f27]) ).

thf(f27,plain,
    ( ( $false
      = ( sK1 @ sK4 ) )
    | ( $true
      = ( sK0 @ sK4 ) )
    | ( $true
      = ( sK0 @ sK4 ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f26]) ).

thf(f26,plain,
    ( ( $false
      = ( sK1 @ sK4 ) )
    | ( $true
      = ( ( sK1 @ sK4 )
        & ( sK0 @ sK4 ) ) )
    | ( $true
      = ( sK0 @ sK4 ) ) ),
    inference(not_proxy_clausification,[status(thm)],[f25]) ).

thf(f25,plain,
    ( ( $true
      = ( sK0 @ sK4 ) )
    | ( $false
      = ( ~ ( ( sK1 @ sK4 )
            & ( sK0 @ sK4 ) ) ) )
    | ( $false
      = ( sK1 @ sK4 ) ) ),
    inference(duplicate_literal_removal,[status(thm)],[f19]) ).

thf(f19,plain,
    ( ( $false
      = ( sK1 @ sK4 ) )
    | ( $true
      = ( sK0 @ sK4 ) )
    | ( $false
      = ( ~ ( ( sK1 @ sK4 )
            & ( sK0 @ sK4 ) ) ) )
    | ( $false
      = ( sK1 @ sK4 ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f18]) ).

thf(f18,plain,
    ( ( $true
      = ( sK0 @ sK4 ) )
    | ( $false
      = ( ( sK0 @ sK4 )
        | ( sK1 @ sK4 ) ) )
    | ( $false
      = ( sK1 @ sK4 ) )
    | ( $false
      = ( ~ ( ( sK1 @ sK4 )
            & ( sK0 @ sK4 ) ) ) ) ),
    inference(not_proxy_clausification,[status(thm)],[f17]) ).

thf(f17,plain,
    ( ( $false
      = ( ~ ( sK0 @ sK4 ) ) )
    | ( $false
      = ( ~ ( ( sK1 @ sK4 )
            & ( sK0 @ sK4 ) ) ) )
    | ( $false
      = ( sK1 @ sK4 ) )
    | ( $false
      = ( ( sK0 @ sK4 )
        | ( sK1 @ sK4 ) ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f16]) ).

thf(f16,plain,
    ( ( $false
      = ( sK1 @ sK4 ) )
    | ( $false
      = ( ~ ( ( sK1 @ sK4 )
            & ( sK0 @ sK4 ) )
        & ( ( sK0 @ sK4 )
          | ( sK1 @ sK4 ) ) ) )
    | ( $false
      = ( ~ ( sK0 @ sK4 ) ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f15]) ).

thf(f15,plain,
    ( ( $false
      = ( ( sK1 @ sK4 )
        & ~ ( sK0 @ sK4 ) ) )
    | ( $false
      = ( ~ ( ( sK1 @ sK4 )
            & ( sK0 @ sK4 ) )
        & ( ( sK0 @ sK4 )
          | ( sK1 @ sK4 ) ) ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f13]) ).

thf(f13,plain,
    ( ( $false
      = ( ( ( sK1 @ sK4 )
          & ~ ( sK0 @ sK4 ) )
        | ( ( sK0 @ sK4 )
          & ~ ( sK1 @ sK4 ) ) ) )
    | ( $false
      = ( ~ ( ( sK1 @ sK4 )
            & ( sK0 @ sK4 ) )
        & ( ( sK0 @ sK4 )
          | ( sK1 @ sK4 ) ) ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f11]) ).

thf(f11,plain,
    ( ( ~ ( ( sK1 @ sK4 )
          & ( sK0 @ sK4 ) )
      & ( ( sK0 @ sK4 )
        | ( sK1 @ sK4 ) ) )
   != ( ( ( sK1 @ sK4 )
        & ~ ( sK0 @ sK4 ) )
      | ( ( sK0 @ sK4 )
        & ~ ( sK1 @ sK4 ) ) ) ),
    inference(beta_eta_normalization,[status(thm)],[f10]) ).

thf(f10,plain,
    ( ( ^ [Y0: a] :
          ( ( ( sK1 @ Y0 )
            & ~ ( sK0 @ Y0 ) )
          | ( ( sK0 @ Y0 )
            & ~ ( sK1 @ Y0 ) ) )
      @ sK4 )
   != ( ^ [Y0: a] :
          ( ~ ( ( sK1 @ Y0 )
              & ( sK0 @ Y0 ) )
          & ( ( sK0 @ Y0 )
            | ( sK1 @ Y0 ) ) )
      @ sK4 ) ),
    inference(negative_extensionality,[status(thm)],[f9]) ).

thf(f9,plain,
    ( ( ^ [Y0: a] :
          ( ( ( sK1 @ Y0 )
            & ~ ( sK0 @ Y0 ) )
          | ( ( sK0 @ Y0 )
            & ~ ( sK1 @ Y0 ) ) ) )
   != ( ^ [Y0: a] :
          ( ~ ( ( sK1 @ Y0 )
              & ( sK0 @ Y0 ) )
          & ( ( sK0 @ Y0 )
            | ( sK1 @ Y0 ) ) ) ) ),
    inference(cnf_transformation,[status(thm)],[f8]) ).

thf(f8,plain,
    ( ( ^ [Y0: a] :
          ( ( ( sK1 @ Y0 )
            & ~ ( sK0 @ Y0 ) )
          | ( ( sK0 @ Y0 )
            & ~ ( sK1 @ Y0 ) ) ) )
   != ( ^ [Y0: a] :
          ( ~ ( ( sK1 @ Y0 )
              & ( sK0 @ Y0 ) )
          & ( ( sK0 @ Y0 )
            | ( sK1 @ Y0 ) ) ) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0,sK1])],[f6,f7]) ).

thf(f7,plain,
    ( ? [X0: a > $o,X1: a > $o] :
        ( ( ^ [Y0: a] :
              ( ( ( X1 @ Y0 )
                & ~ ( X0 @ Y0 ) )
              | ( ( X0 @ Y0 )
                & ~ ( X1 @ Y0 ) ) ) )
       != ( ^ [Y0: a] :
              ( ~ ( ( X1 @ Y0 )
                  & ( X0 @ Y0 ) )
              & ( ( X0 @ Y0 )
                | ( X1 @ Y0 ) ) ) ) )
   => ( ( ^ [Y0: a] :
            ( ( ( sK1 @ Y0 )
              & ~ ( sK0 @ Y0 ) )
            | ( ( sK0 @ Y0 )
              & ~ ( sK1 @ Y0 ) ) ) )
     != ( ^ [Y0: a] :
            ( ~ ( ( sK1 @ Y0 )
                & ( sK0 @ Y0 ) )
            & ( ( sK0 @ Y0 )
              | ( sK1 @ Y0 ) ) ) ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f6,plain,
    ? [X0: a > $o,X1: a > $o] :
      ( ( ^ [Y0: a] :
            ( ( ( X1 @ Y0 )
              & ~ ( X0 @ Y0 ) )
            | ( ( X0 @ Y0 )
              & ~ ( X1 @ Y0 ) ) ) )
     != ( ^ [Y0: a] :
            ( ~ ( ( X1 @ Y0 )
                & ( X0 @ Y0 ) )
            & ( ( X0 @ Y0 )
              | ( X1 @ Y0 ) ) ) ) ),
    inference(ennf_transformation,[status(thm)],[f5]) ).

thf(f5,plain,
    ~ ! [X0: a > $o,X1: a > $o] :
        ( ( ^ [Y0: a] :
              ( ( ( X1 @ Y0 )
                & ~ ( X0 @ Y0 ) )
              | ( ( X0 @ Y0 )
                & ~ ( X1 @ Y0 ) ) ) )
        = ( ^ [Y0: a] :
              ( ~ ( ( X1 @ Y0 )
                  & ( X0 @ Y0 ) )
              & ( ( X0 @ Y0 )
                | ( X1 @ Y0 ) ) ) ) ),
    inference(fool_elimination,[status(thm)],[f4]) ).

thf(f4,plain,
    ~ ! [X0: a > $o,X1: a > $o] :
        ( ( ^ [X2: a] :
              ( ( ~ ( X1 @ X2 )
                & ( X0 @ X2 ) )
              | ( ~ ( X0 @ X2 )
                & ( X1 @ X2 ) ) ) )
        = ( ^ [X3: a] :
              ( ( ( X1 @ X3 )
                | ( X0 @ X3 ) )
              & ~ ( ( X0 @ X3 )
                  & ( X1 @ X3 ) ) ) ) ),
    inference(rectify,[status(thm)],[f2]) ).

thf(f2,negated_conjecture,
    ~ ! [X1: a > $o,X0: a > $o] :
        ( ( ^ [X3: a] :
              ( ( ~ ( X0 @ X3 )
                & ( X1 @ X3 ) )
              | ( ~ ( X1 @ X3 )
                & ( X0 @ X3 ) ) ) )
        = ( ^ [X2: a] :
              ( ( ( X0 @ X2 )
                | ( X1 @ X2 ) )
              & ~ ( ( X1 @ X2 )
                  & ( X0 @ X2 ) ) ) ) ),
    inference(negated_conjecture,[status(cth)],[f1]) ).

thf(f1,conjecture,
    ! [X1: a > $o,X0: a > $o] :
      ( ( ^ [X3: a] :
            ( ( ~ ( X0 @ X3 )
              & ( X1 @ X3 ) )
            | ( ~ ( X1 @ X3 )
              & ( X0 @ X3 ) ) ) )
      = ( ^ [X2: a] :
            ( ( ( X0 @ X2 )
              | ( X1 @ X2 ) )
            & ~ ( ( X1 @ X2 )
                & ( X0 @ X2 ) ) ) ) ),
    file('/export/starexec/sandbox/tmp/tmp.0HL6jANzjS/DTF2THF_1322.p',cBOOL_PROP_87_pme) ).

thf(f103,plain,
    ( spl2_2
    | spl2_3 ),
    inference(avatar_split_clause,[status(thm)],[f39,f85,f81]) ).

thf(f39,plain,
    ( ( $false
      = ( sK0 @ sK4 ) )
    | ( ( sK1 @ sK4 )
      = $true ) ),
    inference(duplicate_literal_removal,[status(thm)],[f38]) ).

thf(f38,plain,
    ( ( ( sK1 @ sK4 )
      = $true )
    | ( $false
      = ( sK0 @ sK4 ) )
    | ( ( sK1 @ sK4 )
      = $true ) ),
    inference(binary_proxy_clausification,[status(thm)],[f36]) ).

thf(f36,plain,
    ( ( ( sK1 @ sK4 )
      = $true )
    | ( $true
      = ( ( sK1 @ sK4 )
        & ( sK0 @ sK4 ) ) )
    | ( $false
      = ( sK0 @ sK4 ) ) ),
    inference(not_proxy_clausification,[status(thm)],[f35]) ).

thf(f35,plain,
    ( ( $false
      = ( sK0 @ sK4 ) )
    | ( $false
      = ( ~ ( ( sK1 @ sK4 )
            & ( sK0 @ sK4 ) ) ) )
    | ( ( sK1 @ sK4 )
      = $true ) ),
    inference(not_proxy_clausification,[status(thm)],[f34]) ).

thf(f34,plain,
    ( ( $false
      = ( sK0 @ sK4 ) )
    | ( $false
      = ( ~ ( sK1 @ sK4 ) ) )
    | ( $false
      = ( ~ ( ( sK1 @ sK4 )
            & ( sK0 @ sK4 ) ) ) ) ),
    inference(duplicate_literal_removal,[status(thm)],[f33]) ).

thf(f33,plain,
    ( ( $false
      = ( sK0 @ sK4 ) )
    | ( $false
      = ( sK0 @ sK4 ) )
    | ( $false
      = ( ~ ( ( sK1 @ sK4 )
            & ( sK0 @ sK4 ) ) ) )
    | ( $false
      = ( ~ ( sK1 @ sK4 ) ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f31]) ).

thf(f31,plain,
    ( ( $false
      = ( sK0 @ sK4 ) )
    | ( $false
      = ( ( sK0 @ sK4 )
        | ( sK1 @ sK4 ) ) )
    | ( $false
      = ( ~ ( ( sK1 @ sK4 )
            & ( sK0 @ sK4 ) ) ) )
    | ( $false
      = ( ~ ( sK1 @ sK4 ) ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f30]) ).

thf(f30,plain,
    ( ( $false
      = ( ( sK0 @ sK4 )
        & ~ ( sK1 @ sK4 ) ) )
    | ( $false
      = ( ~ ( ( sK1 @ sK4 )
            & ( sK0 @ sK4 ) ) ) )
    | ( $false
      = ( ( sK0 @ sK4 )
        | ( sK1 @ sK4 ) ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f14]) ).

thf(f14,plain,
    ( ( $false
      = ( ~ ( ( sK1 @ sK4 )
            & ( sK0 @ sK4 ) )
        & ( ( sK0 @ sK4 )
          | ( sK1 @ sK4 ) ) ) )
    | ( $false
      = ( ( sK0 @ sK4 )
        & ~ ( sK1 @ sK4 ) ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f13]) ).

thf(f96,plain,
    ( spl2_2
    | spl2_4 ),
    inference(avatar_split_clause,[status(thm)],[f61,f89,f81]) ).

thf(f61,plain,
    ( ( $false
      = ( sK0 @ sK4 ) )
    | ( $false
      = ( sK1 @ sK4 ) ) ),
    inference(duplicate_literal_removal,[status(thm)],[f60]) ).

thf(f60,plain,
    ( ( $false
      = ( sK1 @ sK4 ) )
    | ( $false
      = ( sK0 @ sK4 ) )
    | ( $false
      = ( sK0 @ sK4 ) ) ),
    inference(not_proxy_clausification,[status(thm)],[f58]) ).

thf(f58,plain,
    ( ( $false
      = ( sK1 @ sK4 ) )
    | ( $false
      = ( sK0 @ sK4 ) )
    | ( $true
      = ( ~ ( sK0 @ sK4 ) ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f57]) ).

thf(f57,plain,
    ( ( $true
      = ( ( sK1 @ sK4 )
        & ~ ( sK0 @ sK4 ) ) )
    | ( $false
      = ( sK0 @ sK4 ) )
    | ( $false
      = ( sK1 @ sK4 ) ) ),
    inference(duplicate_literal_removal,[status(thm)],[f56]) ).

thf(f56,plain,
    ( ( $false
      = ( sK0 @ sK4 ) )
    | ( $false
      = ( sK1 @ sK4 ) )
    | ( $true
      = ( ( sK1 @ sK4 )
        & ~ ( sK0 @ sK4 ) ) )
    | ( $false
      = ( sK1 @ sK4 ) ) ),
    inference(not_proxy_clausification,[status(thm)],[f50]) ).

thf(f50,plain,
    ( ( $true
      = ( ~ ( sK1 @ sK4 ) ) )
    | ( $false
      = ( sK0 @ sK4 ) )
    | ( $true
      = ( ( sK1 @ sK4 )
        & ~ ( sK0 @ sK4 ) ) )
    | ( $false
      = ( sK1 @ sK4 ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f49]) ).

thf(f49,plain,
    ( ( $true
      = ( ( sK0 @ sK4 )
        & ~ ( sK1 @ sK4 ) ) )
    | ( $false
      = ( sK0 @ sK4 ) )
    | ( $true
      = ( ( sK1 @ sK4 )
        & ~ ( sK0 @ sK4 ) ) )
    | ( $false
      = ( sK1 @ sK4 ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f48]) ).

thf(f48,plain,
    ( ( $false
      = ( ( sK1 @ sK4 )
        & ( sK0 @ sK4 ) ) )
    | ( $true
      = ( ( sK0 @ sK4 )
        & ~ ( sK1 @ sK4 ) ) )
    | ( $true
      = ( ( sK1 @ sK4 )
        & ~ ( sK0 @ sK4 ) ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f47]) ).

thf(f47,plain,
    ( ( $true
      = ( ( ( sK1 @ sK4 )
          & ~ ( sK0 @ sK4 ) )
        | ( ( sK0 @ sK4 )
          & ~ ( sK1 @ sK4 ) ) ) )
    | ( $false
      = ( ( sK1 @ sK4 )
        & ( sK0 @ sK4 ) ) ) ),
    inference(not_proxy_clausification,[status(thm)],[f46]) ).

thf(f46,plain,
    ( ( $true
      = ( ~ ( ( sK1 @ sK4 )
            & ( sK0 @ sK4 ) ) ) )
    | ( $true
      = ( ( ( sK1 @ sK4 )
          & ~ ( sK0 @ sK4 ) )
        | ( ( sK0 @ sK4 )
          & ~ ( sK1 @ sK4 ) ) ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f12]) ).

thf(f12,plain,
    ( ( $true
      = ( ~ ( ( sK1 @ sK4 )
            & ( sK0 @ sK4 ) )
        & ( ( sK0 @ sK4 )
          | ( sK1 @ sK4 ) ) ) )
    | ( $true
      = ( ( ( sK1 @ sK4 )
          & ~ ( sK0 @ sK4 ) )
        | ( ( sK0 @ sK4 )
          & ~ ( sK1 @ sK4 ) ) ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f11]) ).

thf(f95,plain,
    ( spl2_1
    | spl2_3 ),
    inference(avatar_split_clause,[status(thm)],[f69,f85,f77]) ).

thf(f69,plain,
    ( ( ( sK1 @ sK4 )
      = $true )
    | ( $true
      = ( sK0 @ sK4 ) ) ),
    inference(duplicate_literal_removal,[status(thm)],[f68]) ).

thf(f68,plain,
    ( ( $true
      = ( sK0 @ sK4 ) )
    | ( ( sK1 @ sK4 )
      = $true )
    | ( $true
      = ( sK0 @ sK4 ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f66]) ).

thf(f66,plain,
    ( ( $true
      = ( sK0 @ sK4 ) )
    | ( $true
      = ( ( sK0 @ sK4 )
        & ~ ( sK1 @ sK4 ) ) )
    | ( ( sK1 @ sK4 )
      = $true ) ),
    inference(duplicate_literal_removal,[status(thm)],[f65]) ).

thf(f65,plain,
    ( ( $true
      = ( ( sK0 @ sK4 )
        & ~ ( sK1 @ sK4 ) ) )
    | ( $true
      = ( sK0 @ sK4 ) )
    | ( ( sK1 @ sK4 )
      = $true )
    | ( ( sK1 @ sK4 )
      = $true ) ),
    inference(binary_proxy_clausification,[status(thm)],[f63]) ).

thf(f63,plain,
    ( ( $true
      = ( ( sK1 @ sK4 )
        & ~ ( sK0 @ sK4 ) ) )
    | ( $true
      = ( sK0 @ sK4 ) )
    | ( ( sK1 @ sK4 )
      = $true )
    | ( $true
      = ( ( sK0 @ sK4 )
        & ~ ( sK1 @ sK4 ) ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f62]) ).

thf(f62,plain,
    ( ( $true
      = ( ( ( sK1 @ sK4 )
          & ~ ( sK0 @ sK4 ) )
        | ( ( sK0 @ sK4 )
          & ~ ( sK1 @ sK4 ) ) ) )
    | ( ( sK1 @ sK4 )
      = $true )
    | ( $true
      = ( sK0 @ sK4 ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f45]) ).

thf(f45,plain,
    ( ( $true
      = ( ( sK0 @ sK4 )
        | ( sK1 @ sK4 ) ) )
    | ( $true
      = ( ( ( sK1 @ sK4 )
          & ~ ( sK0 @ sK4 ) )
        | ( ( sK0 @ sK4 )
          & ~ ( sK1 @ sK4 ) ) ) ) ),
    inference(binary_proxy_clausification,[status(thm)],[f12]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.09  % Problem  : SET613^5 : TPTP v9.2.1. Released v4.0.0.
% 0.00/0.10  % Command  : /export/starexec/sandbox/solver/bin/run_DT2H2X /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 0.11/0.29  % Computer : n025.cluster.edu
% 0.11/0.29  % Model    : x86_64 x86_64
% 0.11/0.29  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.29  % Memory   : 8042.1875MB
% 0.11/0.29  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.11/0.29  % CPULimit : 300
% 0.11/0.29  % WCLimit  : 300
% 0.11/0.29  % DateTime : Tue Feb 24 12:00:27 EST 2026
% 0.11/0.29  % CPUTime  : 
% 0.11/0.29  Running /export/starexec/sandbox/solver/bin/run_DT2H2X /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 0.16/0.39  ---- Original DTF file ---
% 0.16/0.39  thf(spec,logic,$$dhol).
% 0.16/0.39  %------------------------------------------------------------------------------
% 0.16/0.39  % File     : SET613^5 : TPTP v9.2.1. Released v4.0.0.
% 0.16/0.39  % Domain   : Set Theory
% 0.16/0.39  % Problem  : TPS problem BOOL-PROP-87
% 0.16/0.39  % Version  : Especial.
% 0.16/0.39  % English  : Trybulec's 87th Boolean property of sets
% 0.16/0.39  
% 0.16/0.39  % Refs     : [TS89]  Trybulec & Swieczkowska (1989), Boolean Properties of
% 0.16/0.39  %          : [Bro09] Brown (2009), Email to Geoff Sutcliffe
% 0.16/0.39  % Source   : [Bro09]
% 0.16/0.39  % Names    : tps_0355 [Bro09]
% 0.16/0.39  %          : BOOL-PROP-87 [TPS]
% 0.16/0.39  
% 0.16/0.39  % Status   : Theorem
% 0.16/0.39  % 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 v4.1.0, 0.00 v4.0.1, 0.33 v4.0.0
% 0.16/0.39  % Syntax   : Number of formulae    :    2 (   1 unt;   1 typ;   0 def)
% 0.16/0.39  %            Number of atoms       :    1 (   1 equ;   0 cnn)
% 0.16/0.39  %            Maximal formula atoms :    1 (   1 avg)
% 0.16/0.39  %            Number of connectives :   17 (   3   ~;   2   |;   4   &;   8   @)
% 0.16/0.39  %                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
% 0.16/0.39  %            Maximal formula depth :    3 (   3 avg)
% 0.16/0.39  %            Number of types       :    2 (   1 usr)
% 0.16/0.39  %            Number of type conns  :    2 (   2   >;   0   *;   0   +;   0  <<)
% 0.16/0.39  %            Number of symbols     :    1 (   0 usr;   0 con; 2-2 aty)
% 0.16/0.39  %            Number of variables   :    4 (   2   ^;   2   !;   0   ?;   4   :)
% 0.16/0.39  % SPC      : TH0_THM_EQU_NAR
% 0.16/0.39  
% 0.16/0.39  % Comments : This problem is from the TPS library. Copyright (c) 2009 The TPS
% 0.16/0.39  %            project in the Department of Mathematical Sciences at Carnegie
% 0.16/0.39  %            Mellon University. Distributed under the Creative Commons copyleft
% 0.16/0.39  %            license: http://creativecommons.org/licenses/by-sa/3.0/
% 0.16/0.39  %          : Polymorphic definitions expanded.
% 0.16/0.39  %------------------------------------------------------------------------------
% 0.16/0.39  thf(a_type,type,
% 0.16/0.39      a: $tType ).
% 0.16/0.39  
% 0.16/0.39  thf(cBOOL_PROP_87_pme,conjecture,
% 0.16/0.39      ! [X: a > $o,Y: a > $o] :
% 0.16/0.39        ( ( ^ [Xx: a] :
% 0.16/0.39              ( ( ( X @ Xx )
% 0.16/0.39                | ( Y @ Xx ) )
% 0.16/0.39              & ~ ( ( X @ Xx )
% 0.16/0.39                  & ( Y @ Xx ) ) ) )
% 0.16/0.39        = ( ^ [Xz: a] :
% 0.16/0.39              ( ( ( X @ Xz )
% 0.16/0.39                & ~ ( Y @ Xz ) )
% 0.16/0.39              | ( ( Y @ Xz )
% 0.16/0.39                & ~ ( X @ Xz ) ) ) ) ) ).
% 0.16/0.39  
% 0.16/0.39  %------------------------------------------------------------------------------
% 0.16/0.39  ------------------------
% 1.41/1.25  ---- Embedded in THF ---
% 1.41/1.25  %%% This output was generated by embedproblem, version 1.9.5 (library version 1.9).
% 1.41/1.25  %%% Generated on Tue Feb 24 12:00:28 EST 2026
% 1.41/1.25  %%% using '$$dhol' embedding, version 1.3.0.
% 1.41/1.25  %%% Logic specification used:
% 1.41/1.25  %%% thf(spec, logic, $$dhol).
% 1.41/1.25  
% 1.41/1.25  % SZS output start ListOfTHF for /export/starexec/sandbox/tmp/tmp.0HL6jANzjS/DTF2DTF1322.p
% See solution above
% 1.41/1.25  ------------------------
% 1.41/1.26  ---- Cleaned THF ---
% 1.41/1.26  thf(a_type,type,
% 1.41/1.26      a: $tType ).
% 1.41/1.26  
% 1.41/1.26  thf(cBOOL_PROP_87_pme,conjecture,
% 1.41/1.26      ! [X: a > $o,Y: a > $o] :
% 1.41/1.26        ( ( ^ [Xx: a] :
% 1.41/1.26              ( ( ( X @ Xx )
% 1.41/1.26                | ( Y @ Xx ) )
% 1.41/1.26              & ~ ( ( X @ Xx )
% 1.41/1.26                  & ( Y @ Xx ) ) ) )
% 1.41/1.26        = ( ^ [Xz: a] :
% 1.41/1.26              ( ( ( X @ Xz )
% 1.41/1.26                & ~ ( Y @ Xz ) )
% 1.41/1.26              | ( ( Y @ Xz )
% 1.41/1.26                & ~ ( X @ Xz ) ) ) ) ) ).
% 1.41/1.26  ------------------------
% 1.41/1.28  % (1425)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_1322 for (3000ds/2Mi)
% 1.41/1.28  % (1421)lrs+1002_1:8_bd=off:fd=off:hud=10:tnu=1:i=183:si=on:rtra=on_0 on DTF2THF_1322 for (3000ds/183Mi)
% 1.41/1.28  % (1424)lrs+10_1:1_au=on:inj=on:i=2:si=on:rtra=on_0 on DTF2THF_1322 for (3000ds/2Mi)
% 1.41/1.28  % (1422)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_1322 for (3000ds/4Mi)
% 1.41/1.28  % (1427)lrs+1004_1:128_cond=on:e2e=on:sp=weighted_frequency:i=18:si=on:rtra=on_0 on DTF2THF_1322 for (3000ds/18Mi)
% 1.41/1.28  % (1423)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_1322 for (3000ds/27Mi)
% 1.41/1.28  % (1426)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_1322 for (3000ds/275Mi)
% 1.41/1.28  % (1424)Instruction limit reached!
% 1.41/1.28  % (1424)------------------------------
% 1.41/1.28  % (1424)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.41/1.28  % (1424)Termination reason: Unknown
% 1.41/1.28  % (1425)Instruction limit reached!
% 1.41/1.28  % (1425)------------------------------
% 1.41/1.28  % (1425)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.41/1.28  % (1425)Termination reason: Unknown
% 1.41/1.28  % (1425)Termination phase: Saturation
% 1.41/1.28  
% 1.41/1.28  % (1425)Memory used [KB]: 5500
% 1.41/1.28  % (1425)Time elapsed: 0.003 s
% 1.41/1.28  % (1425)Instructions burned: 2 (million)
% 1.41/1.28  % (1425)------------------------------
% 1.41/1.28  % (1425)------------------------------
% 1.41/1.28  % (1424)Termination phase: Saturation
% 1.41/1.28  
% 1.41/1.28  % (1424)Memory used [KB]: 5500
% 1.41/1.28  % (1424)Time elapsed: 0.003 s
% 1.41/1.28  % (1424)Instructions burned: 2 (million)
% 1.41/1.28  % (1424)------------------------------
% 1.41/1.28  % (1424)------------------------------
% 1.41/1.28  % (1422)Instruction limit reached!
% 1.41/1.28  % (1422)------------------------------
% 1.41/1.28  % (1422)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.41/1.28  % (1422)Termination reason: Unknown
% 1.41/1.28  % (1422)Termination phase: Saturation
% 1.41/1.28  
% 1.41/1.28  % (1422)Memory used [KB]: 5500
% 1.41/1.28  % (1422)Time elapsed: 0.004 s
% 1.41/1.28  % (1422)Instructions burned: 4 (million)
% 1.41/1.28  % (1422)------------------------------
% 1.41/1.28  % (1422)------------------------------
% 1.41/1.28  % (1423)First to succeed.
% 1.41/1.29  % (1421)Also succeeded, but the first one will report.
% 1.41/1.29  % (1426)Also succeeded, but the first one will report.
% 1.41/1.29  % (1423)Refutation found. Thanks to Tanya!
% 1.41/1.29  % SZS status Theorem for DTF2THF_1322
% 1.41/1.29  % SZS output start Proof for DTF2THF_1322
% 1.41/1.29  thf(type_def_5, type, a: $tType).
% 1.41/1.29  thf(func_def_0, type, a: $tType).
% 1.41/1.29  thf(func_def_2, type, vEPSILON: !>[X0: $tType]:((X0 > $o) > X0)).
% 1.41/1.29  thf(func_def_10, type, sK0: a > $o).
% 1.41/1.29  thf(func_def_11, type, sK1: a > $o).
% 1.41/1.29  thf(func_def_13, type, ph3: !>[X0: $tType]:(X0)).
% 1.41/1.29  thf(func_def_14, type, sK4: a).
% 1.41/1.29  thf(f114,plain,(
% 1.41/1.29    $false),
% 1.41/1.29    inference(avatar_sat_refutation,[status(thm)],[f95,f96,f103,f104,f110,f113])).
% 1.41/1.29  thf(f113,plain,(
% 1.41/1.29    ~spl2_1 | ~spl2_2),
% 1.41/1.29    inference(avatar_contradiction_clause,[status(thm)],[f112])).
% 1.41/1.29  thf(f112,plain,(
% 1.41/1.29    $false | (~spl2_1 | ~spl2_2)),
% 1.41/1.29    inference(trivial_inequality_removal,[status(thm)],[f111])).
% 1.41/1.29  thf(f111,plain,(
% 1.41/1.29    ($false = $true) | (~spl2_1 | ~spl2_2)),
% 1.41/1.29    inference(backward_demodulation,[status(thm)],[f79,f83])).
% 1.41/1.29  thf(f83,plain,(
% 1.41/1.29    ($false = (sK0 @ sK4)) | ~spl2_2),
% 1.41/1.29    inference(avatar_component_clause,[status(thm)],[f81])).
% 1.41/1.29  thf(f81,definition,(
% 1.41/1.29    spl2_2 <=> ($false = (sK0 @ sK4))),
% 1.41/1.29    introduced(definition,[new_symbols(naming,[spl2_2])],[avatar_definition])).
% 1.41/1.29  thf(f79,plain,(
% 1.41/1.29    ($true = (sK0 @ sK4)) | ~spl2_1),
% 1.41/1.29    inference(avatar_component_clause,[status(thm)],[f77])).
% 1.41/1.29  thf(f77,definition,(
% 1.41/1.29    spl2_1 <=> ($true = (sK0 @ sK4))),
% 1.41/1.29    introduced(definition,[new_symbols(naming,[spl2_1])],[avatar_definition])).
% 1.41/1.29  thf(f110,plain,(
% 1.41/1.29    ~spl2_3 | ~spl2_4),
% 1.41/1.29    inference(avatar_contradiction_clause,[status(thm)],[f109])).
% 1.41/1.29  thf(f109,plain,(
% 1.41/1.29    $false | (~spl2_3 | ~spl2_4)),
% 1.41/1.29    inference(trivial_inequality_removal,[status(thm)],[f108])).
% 1.41/1.29  thf(f108,plain,(
% 1.41/1.29    ($false = $true) | (~spl2_3 | ~spl2_4)),
% 1.41/1.29    inference(backward_demodulation,[status(thm)],[f87,f91])).
% 1.41/1.29  thf(f91,plain,(
% 1.41/1.29    ($false = (sK1 @ sK4)) | ~spl2_4),
% 1.41/1.29    inference(avatar_component_clause,[status(thm)],[f89])).
% 1.41/1.29  thf(f89,definition,(
% 1.41/1.29    spl2_4 <=> ($false = (sK1 @ sK4))),
% 1.41/1.29    introduced(definition,[new_symbols(naming,[spl2_4])],[avatar_definition])).
% 1.41/1.29  thf(f87,plain,(
% 1.41/1.29    ((sK1 @ sK4) = $true) | ~spl2_3),
% 1.41/1.29    inference(avatar_component_clause,[status(thm)],[f85])).
% 1.41/1.29  thf(f85,definition,(
% 1.41/1.29    spl2_3 <=> ((sK1 @ sK4) = $true)),
% 1.41/1.29    introduced(definition,[new_symbols(naming,[spl2_3])],[avatar_definition])).
% 1.41/1.29  thf(f104,plain,(
% 1.41/1.29    spl2_1 | spl2_4),
% 1.41/1.29    inference(avatar_split_clause,[status(thm)],[f29,f89,f77])).
% 1.41/1.29  thf(f29,plain,(
% 1.41/1.29    ($true = (sK0 @ sK4)) | ($false = (sK1 @ sK4))),
% 1.41/1.29    inference(duplicate_literal_removal,[status(thm)],[f27])).
% 1.41/1.29  thf(f27,plain,(
% 1.41/1.29    ($false = (sK1 @ sK4)) | ($true = (sK0 @ sK4)) | ($true = (sK0 @ sK4))),
% 1.41/1.29    inference(binary_proxy_clausification,[status(thm)],[f26])).
% 1.41/1.29  thf(f26,plain,(
% 1.41/1.29    ($false = (sK1 @ sK4)) | ($true = ((sK1 @ sK4) & (sK0 @ sK4))) | ($true = (sK0 @ sK4))),
% 1.41/1.29    inference(not_proxy_clausification,[status(thm)],[f25])).
% 1.41/1.29  thf(f25,plain,(
% 1.41/1.29    ($true = (sK0 @ sK4)) | ($false = (~ ((sK1 @ sK4) & (sK0 @ sK4)))) | ($false = (sK1 @ sK4))),
% 1.41/1.29    inference(duplicate_literal_removal,[status(thm)],[f19])).
% 1.41/1.29  thf(f19,plain,(
% 1.41/1.29    ($false = (sK1 @ sK4)) | ($true = (sK0 @ sK4)) | ($false = (~ ((sK1 @ sK4) & (sK0 @ sK4)))) | ($false = (sK1 @ sK4))),
% 1.41/1.29    inference(binary_proxy_clausification,[status(thm)],[f18])).
% 1.41/1.29  thf(f18,plain,(
% 1.41/1.29    ($true = (sK0 @ sK4)) | ($false = ((sK0 @ sK4) | (sK1 @ sK4))) | ($false = (sK1 @ sK4)) | ($false = (~ ((sK1 @ sK4) & (sK0 @ sK4))))),
% 1.41/1.29    inference(not_proxy_clausification,[status(thm)],[f17])).
% 1.41/1.29  thf(f17,plain,(
% 1.41/1.29    ($false = (~ (sK0 @ sK4))) | ($false = (~ ((sK1 @ sK4) & (sK0 @ sK4)))) | ($false = (sK1 @ sK4)) | ($false = ((sK0 @ sK4) | (sK1 @ sK4)))),
% 1.41/1.29    inference(binary_proxy_clausification,[status(thm)],[f16])).
% 1.41/1.29  thf(f16,plain,(
% 1.41/1.29    ($false = (sK1 @ sK4)) | ($false = ((~ ((sK1 @ sK4) & (sK0 @ sK4))) & ((sK0 @ sK4) | (sK1 @ sK4)))) | ($false = (~ (sK0 @ sK4)))),
% 1.41/1.29    inference(binary_proxy_clausification,[status(thm)],[f15])).
% 1.41/1.29  thf(f15,plain,(
% 1.41/1.29    ($false = ((sK1 @ sK4) & (~ (sK0 @ sK4)))) | ($false = ((~ ((sK1 @ sK4) & (sK0 @ sK4))) & ((sK0 @ sK4) | (sK1 @ sK4))))),
% 1.41/1.29    inference(binary_proxy_clausification,[status(thm)],[f13])).
% 1.41/1.29  thf(f13,plain,(
% 1.41/1.29    ($false = (((sK1 @ sK4) & (~ (sK0 @ sK4))) | ((sK0 @ sK4) & (~ (sK1 @ sK4))))) | ($false = ((~ ((sK1 @ sK4) & (sK0 @ sK4))) & ((sK0 @ sK4) | (sK1 @ sK4))))),
% 1.41/1.29    inference(binary_proxy_clausification,[status(thm)],[f11])).
% 1.41/1.29  thf(f11,plain,(
% 1.41/1.29    (((~ ((sK1 @ sK4) & (sK0 @ sK4))) & ((sK0 @ sK4) | (sK1 @ sK4))) != (((sK1 @ sK4) & (~ (sK0 @ sK4))) | ((sK0 @ sK4) & (~ (sK1 @ sK4)))))),
% 1.41/1.29    inference(beta_eta_normalization,[status(thm)],[f10])).
% 1.41/1.29  thf(f10,plain,(
% 1.41/1.29    (((^[Y0 : a]: (((sK1 @ Y0) & (~ (sK0 @ Y0))) | ((sK0 @ Y0) & (~ (sK1 @ Y0))))) @ sK4) != ((^[Y0 : a]: ((~ ((sK1 @ Y0) & (sK0 @ Y0))) & ((sK0 @ Y0) | (sK1 @ Y0)))) @ sK4))),
% 1.41/1.29    inference(negative_extensionality,[status(thm)],[f9])).
% 1.41/1.29  thf(f9,plain,(
% 1.41/1.29    ((^[Y0 : a]: (((sK1 @ Y0) & (~ (sK0 @ Y0))) | ((sK0 @ Y0) & (~ (sK1 @ Y0))))) != (^[Y0 : a]: ((~ ((sK1 @ Y0) & (sK0 @ Y0))) & ((sK0 @ Y0) | (sK1 @ Y0)))))),
% 1.41/1.29    inference(cnf_transformation,[status(thm)],[f8])).
% 1.41/1.29  thf(f8,plain,(
% 1.41/1.29    ((^[Y0 : a]: (((sK1 @ Y0) & (~ (sK0 @ Y0))) | ((sK0 @ Y0) & (~ (sK1 @ Y0))))) != (^[Y0 : a]: ((~ ((sK1 @ Y0) & (sK0 @ Y0))) & ((sK0 @ Y0) | (sK1 @ Y0)))))),
% 1.41/1.29    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0,sK1])],[f6,f7])).
% 1.41/1.29  thf(f7,plain,(
% 1.41/1.29    ? [X0 : a > $o,X1 : a > $o] : ((^[Y0 : a]: (((X1 @ Y0) & (~ (X0 @ Y0))) | ((X0 @ Y0) & (~ (X1 @ Y0))))) != (^[Y0 : a]: ((~ ((X1 @ Y0) & (X0 @ Y0))) & ((X0 @ Y0) | (X1 @ Y0))))) => ((^[Y0 : a]: (((sK1 @ Y0) & (~ (sK0 @ Y0))) | ((sK0 @ Y0) & (~ (sK1 @ Y0))))) != (^[Y0 : a]: ((~ ((sK1 @ Y0) & (sK0 @ Y0))) & ((sK0 @ Y0) | (sK1 @ Y0)))))),
% 1.41/1.29    introduced(definition,[],[choice_axiom])).
% 1.41/1.29  thf(f6,plain,(
% 1.41/1.29    ? [X0 : a > $o,X1 : a > $o] : ((^[Y0 : a]: (((X1 @ Y0) & (~ (X0 @ Y0))) | ((X0 @ Y0) & (~ (X1 @ Y0))))) != (^[Y0 : a]: ((~ ((X1 @ Y0) & (X0 @ Y0))) & ((X0 @ Y0) | (X1 @ Y0)))))),
% 1.41/1.29    inference(ennf_transformation,[status(thm)],[f5])).
% 1.41/1.29  thf(f5,plain,(
% 1.41/1.29    ~! [X0 : a > $o,X1 : a > $o] : ((^[Y0 : a]: (((X1 @ Y0) & (~ (X0 @ Y0))) | ((X0 @ Y0) & (~ (X1 @ Y0))))) = (^[Y0 : a]: ((~ ((X1 @ Y0) & (X0 @ Y0))) & ((X0 @ Y0) | (X1 @ Y0)))))),
% 1.41/1.29    inference(fool_elimination,[status(thm)],[f4])).
% 1.41/1.29  thf(f4,plain,(
% 1.41/1.29    ~! [X0 : a > $o,X1 : a > $o] : ((^[X2 : a] : ((~(X1 @ X2) & (X0 @ X2)) | (~(X0 @ X2) & (X1 @ X2)))) = (^[X3 : a] : (((X1 @ X3) | (X0 @ X3)) & ~((X0 @ X3) & (X1 @ X3)))))),
% 1.41/1.29    inference(rectify,[status(thm)],[f2])).
% 1.41/1.29  thf(f2,negated_conjecture,(
% 1.41/1.29    ~! [X1 : a > $o,X0 : a > $o] : ((^[X3 : a] : ((~(X0 @ X3) & (X1 @ X3)) | (~(X1 @ X3) & (X0 @ X3)))) = (^[X2 : a] : (((X0 @ X2) | (X1 @ X2)) & ~((X1 @ X2) & (X0 @ X2)))))),
% 1.41/1.29    inference(negated_conjecture,[status(cth)],[f1])).
% 1.41/1.29  thf(f1,conjecture,(
% 1.41/1.29    ! [X1 : a > $o,X0 : a > $o] : ((^[X3 : a] : ((~(X0 @ X3) & (X1 @ X3)) | (~(X1 @ X3) & (X0 @ X3)))) = (^[X2 : a] : (((X0 @ X2) | (X1 @ X2)) & ~((X1 @ X2) & (X0 @ X2)))))),
% 1.41/1.29    file('/export/starexec/sandbox/tmp/tmp.0HL6jANzjS/DTF2THF_1322.p',cBOOL_PROP_87_pme)).
% 1.41/1.29  thf(f103,plain,(
% 1.41/1.29    spl2_2 | spl2_3),
% 1.41/1.29    inference(avatar_split_clause,[status(thm)],[f39,f85,f81])).
% 1.41/1.29  thf(f39,plain,(
% 1.41/1.29    ($false = (sK0 @ sK4)) | ((sK1 @ sK4) = $true)),
% 1.41/1.29    inference(duplicate_literal_removal,[status(thm)],[f38])).
% 1.41/1.29  thf(f38,plain,(
% 1.41/1.29    ((sK1 @ sK4) = $true) | ($false = (sK0 @ sK4)) | ((sK1 @ sK4) = $true)),
% 1.41/1.29    inference(binary_proxy_clausification,[status(thm)],[f36])).
% 1.41/1.29  thf(f36,plain,(
% 1.41/1.29    ((sK1 @ sK4) = $true) | ($true = ((sK1 @ sK4) & (sK0 @ sK4))) | ($false = (sK0 @ sK4))),
% 1.41/1.29    inference(not_proxy_clausification,[status(thm)],[f35])).
% 1.41/1.29  thf(f35,plain,(
% 1.41/1.29    ($false = (sK0 @ sK4)) | ($false = (~ ((sK1 @ sK4) & (sK0 @ sK4)))) | ((sK1 @ sK4) = $true)),
% 1.41/1.29    inference(not_proxy_clausification,[status(thm)],[f34])).
% 1.41/1.29  thf(f34,plain,(
% 1.41/1.29    ($false = (sK0 @ sK4)) | ($false = (~ (sK1 @ sK4))) | ($false = (~ ((sK1 @ sK4) & (sK0 @ sK4))))),
% 1.41/1.29    inference(duplicate_literal_removal,[status(thm)],[f33])).
% 1.41/1.29  thf(f33,plain,(
% 1.41/1.29    ($false = (sK0 @ sK4)) | ($false = (sK0 @ sK4)) | ($false = (~ ((sK1 @ sK4) & (sK0 @ sK4)))) | ($false = (~ (sK1 @ sK4)))),
% 1.41/1.29    inference(binary_proxy_clausification,[status(thm)],[f31])).
% 1.41/1.29  thf(f31,plain,(
% 1.41/1.29    ($false = (sK0 @ sK4)) | ($false = ((sK0 @ sK4) | (sK1 @ sK4))) | ($false = (~ ((sK1 @ sK4) & (sK0 @ sK4)))) | ($false = (~ (sK1 @ sK4)))),
% 1.41/1.29    inference(binary_proxy_clausification,[status(thm)],[f30])).
% 1.41/1.29  thf(f30,plain,(
% 1.41/1.29    ($false = ((sK0 @ sK4) & (~ (sK1 @ sK4)))) | ($false = (~ ((sK1 @ sK4) & (sK0 @ sK4)))) | ($false = ((sK0 @ sK4) | (sK1 @ sK4)))),
% 1.41/1.29    inference(binary_proxy_clausification,[status(thm)],[f14])).
% 1.41/1.29  thf(f14,plain,(
% 1.41/1.29    ($false = ((~ ((sK1 @ sK4) & (sK0 @ sK4))) & ((sK0 @ sK4) | (sK1 @ sK4)))) | ($false = ((sK0 @ sK4) & (~ (sK1 @ sK4))))),
% 1.41/1.29    inference(binary_proxy_clausification,[status(thm)],[f13])).
% 1.41/1.29  thf(f96,plain,(
% 1.41/1.29    spl2_2 | spl2_4),
% 1.41/1.29    inference(avatar_split_clause,[status(thm)],[f61,f89,f81])).
% 1.41/1.29  thf(f61,plain,(
% 1.41/1.29    ($false = (sK0 @ sK4)) | ($false = (sK1 @ sK4))),
% 1.41/1.29    inference(duplicate_literal_removal,[status(thm)],[f60])).
% 1.41/1.29  thf(f60,plain,(
% 1.41/1.29    ($false = (sK1 @ sK4)) | ($false = (sK0 @ sK4)) | ($false = (sK0 @ sK4))),
% 1.41/1.29    inference(not_proxy_clausification,[status(thm)],[f58])).
% 1.41/1.29  thf(f58,plain,(
% 1.41/1.29    ($false = (sK1 @ sK4)) | ($false = (sK0 @ sK4)) | ($true = (~ (sK0 @ sK4)))),
% 1.41/1.29    inference(binary_proxy_clausification,[status(thm)],[f57])).
% 1.41/1.29  thf(f57,plain,(
% 1.41/1.29    ($true = ((sK1 @ sK4) & (~ (sK0 @ sK4)))) | ($false = (sK0 @ sK4)) | ($false = (sK1 @ sK4))),
% 1.41/1.29    inference(duplicate_literal_removal,[status(thm)],[f56])).
% 1.41/1.29  thf(f56,plain,(
% 1.41/1.29    ($false = (sK0 @ sK4)) | ($false = (sK1 @ sK4)) | ($true = ((sK1 @ sK4) & (~ (sK0 @ sK4)))) | ($false = (sK1 @ sK4))),
% 1.41/1.29    inference(not_proxy_clausification,[status(thm)],[f50])).
% 1.41/1.29  thf(f50,plain,(
% 1.41/1.29    ($true = (~ (sK1 @ sK4))) | ($false = (sK0 @ sK4)) | ($true = ((sK1 @ sK4) & (~ (sK0 @ sK4)))) | ($false = (sK1 @ sK4))),
% 1.41/1.29    inference(binary_proxy_clausification,[status(thm)],[f49])).
% 1.41/1.29  thf(f49,plain,(
% 1.41/1.29    ($true = ((sK0 @ sK4) & (~ (sK1 @ sK4)))) | ($false = (sK0 @ sK4)) | ($true = ((sK1 @ sK4) & (~ (sK0 @ sK4)))) | ($false = (sK1 @ sK4))),
% 1.41/1.29    inference(binary_proxy_clausification,[status(thm)],[f48])).
% 1.41/1.29  thf(f48,plain,(
% 1.41/1.29    ($false = ((sK1 @ sK4) & (sK0 @ sK4))) | ($true = ((sK0 @ sK4) & (~ (sK1 @ sK4)))) | ($true = ((sK1 @ sK4) & (~ (sK0 @ sK4))))),
% 1.41/1.29    inference(binary_proxy_clausification,[status(thm)],[f47])).
% 1.41/1.29  thf(f47,plain,(
% 1.41/1.29    ($true = (((sK1 @ sK4) & (~ (sK0 @ sK4))) | ((sK0 @ sK4) & (~ (sK1 @ sK4))))) | ($false = ((sK1 @ sK4) & (sK0 @ sK4)))),
% 1.41/1.29    inference(not_proxy_clausification,[status(thm)],[f46])).
% 1.41/1.29  thf(f46,plain,(
% 1.41/1.29    ($true = (~ ((sK1 @ sK4) & (sK0 @ sK4)))) | ($true = (((sK1 @ sK4) & (~ (sK0 @ sK4))) | ((sK0 @ sK4) & (~ (sK1 @ sK4)))))),
% 1.41/1.29    inference(binary_proxy_clausification,[status(thm)],[f12])).
% 1.41/1.29  thf(f12,plain,(
% 1.41/1.29    ($true = ((~ ((sK1 @ sK4) & (sK0 @ sK4))) & ((sK0 @ sK4) | (sK1 @ sK4)))) | ($true = (((sK1 @ sK4) & (~ (sK0 @ sK4))) | ((sK0 @ sK4) & (~ (sK1 @ sK4)))))),
% 1.41/1.29    inference(binary_proxy_clausification,[status(thm)],[f11])).
% 1.41/1.29  thf(f95,plain,(
% 1.41/1.29    spl2_1 | spl2_3),
% 1.41/1.29    inference(avatar_split_clause,[status(thm)],[f69,f85,f77])).
% 1.41/1.29  thf(f69,plain,(
% 1.41/1.29    ((sK1 @ sK4) = $true) | ($true = (sK0 @ sK4))),
% 1.41/1.29    inference(duplicate_literal_removal,[status(thm)],[f68])).
% 1.41/1.29  thf(f68,plain,(
% 1.41/1.29    ($true = (sK0 @ sK4)) | ((sK1 @ sK4) = $true) | ($true = (sK0 @ sK4))),
% 1.41/1.29    inference(binary_proxy_clausification,[status(thm)],[f66])).
% 1.41/1.29  thf(f66,plain,(
% 1.41/1.29    ($true = (sK0 @ sK4)) | ($true = ((sK0 @ sK4) & (~ (sK1 @ sK4)))) | ((sK1 @ sK4) = $true)),
% 1.41/1.29    inference(duplicate_literal_removal,[status(thm)],[f65])).
% 1.41/1.29  thf(f65,plain,(
% 1.41/1.29    ($true = ((sK0 @ sK4) & (~ (sK1 @ sK4)))) | ($true = (sK0 @ sK4)) | ((sK1 @ sK4) = $true) | ((sK1 @ sK4) = $true)),
% 1.41/1.29    inference(binary_proxy_clausification,[status(thm)],[f63])).
% 1.41/1.29  thf(f63,plain,(
% 1.41/1.29    ($true = ((sK1 @ sK4) & (~ (sK0 @ sK4)))) | ($true = (sK0 @ sK4)) | ((sK1 @ sK4) = $true) | ($true = ((sK0 @ sK4) & (~ (sK1 @ sK4))))),
% 1.41/1.29    inference(binary_proxy_clausification,[status(thm)],[f62])).
% 1.41/1.29  thf(f62,plain,(
% 1.41/1.29    ($true = (((sK1 @ sK4) & (~ (sK0 @ sK4))) | ((sK0 @ sK4) & (~ (sK1 @ sK4))))) | ((sK1 @ sK4) = $true) | ($true = (sK0 @ sK4))),
% 1.41/1.29    inference(binary_proxy_clausification,[status(thm)],[f45])).
% 1.41/1.29  thf(f45,plain,(
% 1.41/1.29    ($true = ((sK0 @ sK4) | (sK1 @ sK4))) | ($true = (((sK1 @ sK4) & (~ (sK0 @ sK4))) | ((sK0 @ sK4) & (~ (sK1 @ sK4)))))),
% 1.41/1.29    inference(binary_proxy_clausification,[status(thm)],[f12])).
% 1.41/1.29  % SZS output end Proof for DTF2THF_1322
% 1.41/1.29  % (1423)------------------------------
% 1.41/1.29  % (1423)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.41/1.29  % (1423)Termination reason: Refutation
% 1.41/1.29  
% 1.41/1.29  % (1423)Memory used [KB]: 5500
% 1.41/1.29  % (1423)Time elapsed: 0.006 s
% 1.41/1.29  % (1423)Instructions burned: 4 (million)
% 1.41/1.29  % (1423)------------------------------
% 1.41/1.29  % (1423)------------------------------
% 1.41/1.29  % (1420)Success in time 0.02 s
%------------------------------------------------------------------------------