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DT2H2X---1.9.5.THM-Ref.s

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%------------------------------------------------------------------------------
% File     : DT2H2X---1.9.5
% Problem  : SEV097^5 : 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 : n008.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Wed Feb 25 09:40:16 AM UTC 2026

% Result   : Theorem 1.66s 1.46s
% Output   : Refutation 1.66s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   11
%            Number of leaves      :    4
% Syntax   : Number of formulae    :   16 (   4 unt;   0 typ;   0 def)
%            Number of atoms       :  346 ( 101 equ;   0 cnn)
%            Maximal formula atoms :   14 (  21 avg)
%            Number of connectives :  468 (  51   ~;  37   |;  63   &; 289   @)
%                                         (   0 <=>;  28  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   13 (   8 avg)
%            Number of types       :    3 (   2 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   11 (   8 usr;   4 con; 0-2 aty)
%            Number of variables   :  143 (   0   ^; 119   !;  24   ?; 143   :)

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

thf(type_def_7,type,
    b: $tType ).

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

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

thf(func_def_2,type,
    z: a ).

thf(func_def_3,type,
    cR: a > a > $o ).

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

thf(func_def_5,type,
    cS: b > b > $o ).

thf(func_def_7,type,
    vEPSILON: 
      !>[X0: $tType] : ( ( X0 > $o ) > X0 ) ).

thf(func_def_10,type,
    sK0: a ).

thf(func_def_11,type,
    sK1: b > a ).

thf(func_def_12,type,
    sK2: a > b ).

thf(f30,plain,
    $false,
    inference(trivial_inequality_removal,[status(thm)],[f29]) ).

thf(f29,plain,
    $true != $true,
    inference(superposition,[status(thm)],[f16,f14]) ).

thf(f14,plain,
    ! [X13: a] :
      ( $true
      = ( f @ X13 @ ( sK2 @ X13 ) ) ),
    inference(cnf_transformation,[status(thm)],[f13]) ).

thf(f13,plain,
    ( ! [X0: a] :
        ( $true
        = ( cR @ X0 @ X0 ) )
    & ! [X1: b,X2: a,X3: b] :
        ( ( $true
         != ( f @ X2 @ X1 ) )
        | ( $true
          = ( cS @ X3 @ X1 ) )
        | ( $true
         != ( f @ X2 @ X3 ) ) )
    & ! [X4: a,X5: a,X6: a] :
        ( ( $true
          = ( cR @ X4 @ X6 ) )
        | ( $true
         != ( cR @ X6 @ X5 ) )
        | ( $true
         != ( cR @ X4 @ X5 ) ) )
    & ! [X7: b,X8: a,X9: a] :
        ( ( $true
         != ( f @ X9 @ X7 ) )
        | ( ( f @ X8 @ X7 )
         != $true )
        | ( $true
          = ( cR @ X9 @ X8 ) ) )
    & ! [X11: b] :
        ( ( $true
         != ( f @ sK0 @ X11 ) )
        & ( ( $true
            = ( f @ ( sK1 @ X11 ) @ X11 ) )
          | ( $true
           != ( cR @ sK0 @ z ) ) ) )
    & ! [X13: a] :
        ( $true
        = ( f @ X13 @ ( sK2 @ X13 ) ) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0,sK1,sK2])],[f9,f12,f11,f10]) ).

thf(f10,plain,
    ( ? [X10: a] :
      ! [X11: b] :
      ? [X12: a] :
        ( ( $true
         != ( f @ X10 @ X11 ) )
        & ( ( $true
            = ( f @ X12 @ X11 ) )
          | ( $true
           != ( cR @ X10 @ z ) ) ) )
   => ! [X11: b] :
      ? [X12: a] :
        ( ( $true
         != ( f @ sK0 @ X11 ) )
        & ( ( $true
            = ( f @ X12 @ X11 ) )
          | ( $true
           != ( cR @ sK0 @ z ) ) ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f11,plain,
    ! [X11: b] :
      ( ? [X12: a] :
          ( ( $true
           != ( f @ sK0 @ X11 ) )
          & ( ( $true
              = ( f @ X12 @ X11 ) )
            | ( $true
             != ( cR @ sK0 @ z ) ) ) )
     => ( ( $true
         != ( f @ sK0 @ X11 ) )
        & ( ( $true
            = ( f @ ( sK1 @ X11 ) @ X11 ) )
          | ( $true
           != ( cR @ sK0 @ z ) ) ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f12,plain,
    ! [X13: a] :
      ( ? [X14: b] :
          ( $true
          = ( f @ X13 @ X14 ) )
     => ( $true
        = ( f @ X13 @ ( sK2 @ X13 ) ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f9,plain,
    ( ! [X0: a] :
        ( $true
        = ( cR @ X0 @ X0 ) )
    & ! [X1: b,X2: a,X3: b] :
        ( ( $true
         != ( f @ X2 @ X1 ) )
        | ( $true
          = ( cS @ X3 @ X1 ) )
        | ( $true
         != ( f @ X2 @ X3 ) ) )
    & ! [X4: a,X5: a,X6: a] :
        ( ( $true
          = ( cR @ X4 @ X6 ) )
        | ( $true
         != ( cR @ X6 @ X5 ) )
        | ( $true
         != ( cR @ X4 @ X5 ) ) )
    & ! [X7: b,X8: a,X9: a] :
        ( ( $true
         != ( f @ X9 @ X7 ) )
        | ( ( f @ X8 @ X7 )
         != $true )
        | ( $true
          = ( cR @ X9 @ X8 ) ) )
    & ? [X10: a] :
      ! [X11: b] :
      ? [X12: a] :
        ( ( $true
         != ( f @ X10 @ X11 ) )
        & ( ( $true
            = ( f @ X12 @ X11 ) )
          | ( $true
           != ( cR @ X10 @ z ) ) ) )
    & ! [X13: a] :
      ? [X14: b] :
        ( $true
        = ( f @ X13 @ X14 ) ) ),
    inference(rectify,[status(thm)],[f8]) ).

thf(f8,plain,
    ( ! [X0: a] :
        ( $true
        = ( cR @ X0 @ X0 ) )
    & ! [X6: b,X4: a,X5: b] :
        ( ( $true
         != ( f @ X4 @ X6 ) )
        | ( ( cS @ X5 @ X6 )
          = $true )
        | ( $true
         != ( f @ X4 @ X5 ) ) )
    & ! [X1: a,X3: a,X2: a] :
        ( ( $true
          = ( cR @ X1 @ X2 ) )
        | ( $true
         != ( cR @ X2 @ X3 ) )
        | ( $true
         != ( cR @ X1 @ X3 ) ) )
    & ! [X9: b,X11: a,X10: a] :
        ( ( $true
         != ( f @ X10 @ X9 ) )
        | ( $true
         != ( f @ X11 @ X9 ) )
        | ( $true
          = ( cR @ X10 @ X11 ) ) )
    & ? [X12: a] :
      ! [X13: b] :
      ? [X14: a] :
        ( ( $true
         != ( f @ X12 @ X13 ) )
        & ( ( $true
            = ( f @ X14 @ X13 ) )
          | ( $true
           != ( cR @ X12 @ z ) ) ) )
    & ! [X7: a] :
      ? [X8: b] :
        ( $true
        = ( f @ X7 @ X8 ) ) ),
    inference(flattening,[status(thm)],[f7]) ).

thf(f7,plain,
    ( ? [X12: a] :
      ! [X13: b] :
      ? [X14: a] :
        ( ( $true
         != ( f @ X12 @ X13 ) )
        & ( ( $true
            = ( f @ X14 @ X13 ) )
          | ( $true
           != ( cR @ X12 @ z ) ) ) )
    & ! [X7: a] :
      ? [X8: b] :
        ( $true
        = ( f @ X7 @ X8 ) )
    & ! [X9: b,X11: a,X10: a] :
        ( ( $true
          = ( cR @ X10 @ X11 ) )
        | ( $true
         != ( f @ X11 @ X9 ) )
        | ( $true
         != ( f @ X10 @ X9 ) ) )
    & ! [X5: b,X4: a,X6: b] :
        ( ( ( cS @ X5 @ X6 )
          = $true )
        | ( $true
         != ( f @ X4 @ X5 ) )
        | ( $true
         != ( f @ X4 @ X6 ) ) )
    & ! [X0: a] :
        ( $true
        = ( cR @ X0 @ X0 ) )
    & ! [X3: a,X2: a,X1: a] :
        ( ( $true
          = ( cR @ X1 @ X2 ) )
        | ( $true
         != ( cR @ X1 @ X3 ) )
        | ( $true
         != ( cR @ X2 @ X3 ) ) ) ),
    inference(ennf_transformation,[status(thm)],[f6]) ).

thf(f6,plain,
    ~ ( ( ! [X0: a] :
            ( $true
            = ( cR @ X0 @ X0 ) )
        & ! [X3: a,X2: a,X1: a] :
            ( ( ( $true
                = ( cR @ X1 @ X3 ) )
              & ( $true
                = ( cR @ X2 @ X3 ) ) )
           => ( $true
              = ( cR @ X1 @ X2 ) ) ) )
     => ( ( ! [X7: a] :
            ? [X8: b] :
              ( $true
              = ( f @ X7 @ X8 ) )
          & ! [X9: b,X11: a,X10: a] :
              ( ( ( $true
                  = ( f @ X11 @ X9 ) )
                & ( $true
                  = ( f @ X10 @ X9 ) ) )
             => ( $true
                = ( cR @ X10 @ X11 ) ) )
          & ! [X5: b,X4: a,X6: b] :
              ( ( ( $true
                  = ( f @ X4 @ X5 ) )
                & ( $true
                  = ( f @ X4 @ X6 ) ) )
             => ( ( cS @ X5 @ X6 )
                = $true ) ) )
       => ! [X12: a] :
          ? [X13: b] :
          ! [X14: a] :
            ( ( $true
              = ( f @ X12 @ X13 ) )
            | ( ( $true
               != ( f @ X14 @ X13 ) )
              & ( $true
                = ( cR @ X12 @ z ) ) ) ) ) ),
    inference(flattening,[status(thm)],[f5]) ).

thf(f5,plain,
    ~ ( ( ! [X0: a] :
            ( $true
            = ( cR @ X0 @ X0 ) )
        & ! [X3: a,X2: a,X1: a] :
            ( ( ( $true
                = ( cR @ X1 @ X3 ) )
              & ( $true
                = ( cR @ X2 @ X3 ) ) )
           => ( $true
              = ( cR @ X1 @ X2 ) ) ) )
     => ( ( ! [X7: a] :
            ? [X8: b] :
              ( $true
              = ( f @ X7 @ X8 ) )
          & ! [X9: b,X11: a,X10: a] :
              ( ( ( $true
                  = ( f @ X11 @ X9 ) )
                & ( $true
                  = ( f @ X10 @ X9 ) ) )
             => ( $true
                = ( cR @ X10 @ X11 ) ) )
          & ! [X5: b,X4: a,X6: b] :
              ( ( ( $true
                  = ( f @ X4 @ X5 ) )
                & ( $true
                  = ( f @ X4 @ X6 ) ) )
             => ( ( cS @ X5 @ X6 )
                = $true ) ) )
       => ! [X12: a] :
          ? [X13: b] :
          ! [X14: a] :
            ( ( ( $true
               != ( f @ X14 @ X13 ) )
              & ( $true
                = ( cR @ X12 @ z ) ) )
            | ( $true
              = ( f @ X12 @ X13 ) ) ) ) ),
    inference(fool_elimination,[status(thm)],[f4]) ).

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

thf(f2,negated_conjecture,
    ~ ( ( ! [X3: a] : ( cR @ X3 @ X3 )
        & ! [X0: a,X2: a,X1: a] :
            ( ( ( cR @ X0 @ X1 )
              & ( cR @ X2 @ X1 ) )
           => ( cR @ X0 @ X2 ) ) )
     => ( ( ! [X3: a,X5: b,X6: b] :
              ( ( ( f @ X3 @ X6 )
                & ( f @ X3 @ X5 ) )
             => ( cS @ X5 @ X6 ) )
          & ! [X3: a] :
            ? [X4: b] : ( f @ X3 @ X4 )
          & ! [X4: b,X7: a,X8: a] :
              ( ( ( f @ X7 @ X4 )
                & ( f @ X8 @ X4 ) )
             => ( cR @ X7 @ X8 ) ) )
       => ! [X3: a] :
          ? [X4: b] :
          ! [X2: a] :
            ( ( ~ ( f @ X2 @ X4 )
              & ( cR @ X3 @ z ) )
            | ( f @ X3 @ X4 ) ) ) ),
    inference(negated_conjecture,[status(cth)],[f1]) ).

thf(f1,conjecture,
    ( ( ! [X3: a] : ( cR @ X3 @ X3 )
      & ! [X0: a,X2: a,X1: a] :
          ( ( ( cR @ X0 @ X1 )
            & ( cR @ X2 @ X1 ) )
         => ( cR @ X0 @ X2 ) ) )
   => ( ( ! [X3: a,X5: b,X6: b] :
            ( ( ( f @ X3 @ X6 )
              & ( f @ X3 @ X5 ) )
           => ( cS @ X5 @ X6 ) )
        & ! [X3: a] :
          ? [X4: b] : ( f @ X3 @ X4 )
        & ! [X4: b,X7: a,X8: a] :
            ( ( ( f @ X7 @ X4 )
              & ( f @ X8 @ X4 ) )
           => ( cR @ X7 @ X8 ) ) )
     => ! [X3: a] :
        ? [X4: b] :
        ! [X2: a] :
          ( ( ~ ( f @ X2 @ X4 )
            & ( cR @ X3 @ z ) )
          | ( f @ X3 @ X4 ) ) ) ),
    file('/export/starexec/sandbox/tmp/tmp.FluTenTuQH/DTF2THF_6289.p',cTHM552C_pme) ).

thf(f16,plain,
    ! [X11: b] :
      ( $true
     != ( f @ sK0 @ X11 ) ),
    inference(cnf_transformation,[status(thm)],[f13]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.11  % Problem  : SEV097^5 : TPTP v9.2.1. Released v4.0.0.
% 0.12/0.13  % Command  : /export/starexec/sandbox/solver/bin/run_DT2H2X /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 0.14/0.34  % Computer : n008.cluster.edu
% 0.14/0.34  % Model    : x86_64 x86_64
% 0.14/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.34  % Memory   : 8042.1875MB
% 0.14/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.34  % CPULimit : 300
% 0.14/0.34  % WCLimit  : 300
% 0.14/0.34  % DateTime : Tue Feb 24 12:40:09 EST 2026
% 0.14/0.34  % CPUTime  : 
% 0.14/0.34  Running /export/starexec/sandbox/solver/bin/run_DT2H2X /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 0.19/0.48  ---- Original DTF file ---
% 0.19/0.48  thf(spec,logic,$$dhol).
% 0.19/0.48  %------------------------------------------------------------------------------
% 0.19/0.48  % File     : SEV097^5 : TPTP v9.2.1. Released v4.0.0.
% 0.19/0.48  % Domain   : Set Theory (Relations)
% 0.19/0.48  % Problem  : TPS problem from RELN-THMS
% 0.19/0.48  % Version  : Especial.
% 0.19/0.48  % English  :
% 0.19/0.48  
% 0.19/0.48  % Refs     : [Bro09] Brown (2009), Email to Geoff Sutcliffe
% 0.19/0.48  % Source   : [Bro09]
% 0.19/0.48  % Names    : tps_1073 [Bro09]
% 0.19/0.48  
% 0.19/0.48  % Status   : Theorem
% 0.19/0.48  % Rating   : 0.00 v6.2.0, 0.17 v6.0.0, 0.00 v4.0.1, 0.33 v4.0.0
% 0.19/0.48  % Syntax   : Number of formulae    :    7 (   0 unt;   6 typ;   0 def)
% 0.19/0.48  %            Number of atoms       :   14 (   0 equ;   0 cnn)
% 0.19/0.48  %            Maximal formula atoms :   14 (  14 avg)
% 0.19/0.48  %            Number of connectives :   42 (   1   ~;   1   |;   7   &;  28   @)
% 0.19/0.48  %                                         (   0 <=>;   5  =>;   0  <=;   0 <~>)
% 0.19/0.48  %            Maximal formula depth :   12 (  12 avg)
% 0.19/0.48  %            Number of types       :    3 (   2 usr)
% 0.19/0.48  %            Number of type conns  :    6 (   6   >;   0   *;   0   +;   0  <<)
% 0.19/0.48  %            Number of symbols     :    4 (   4 usr;   1 con; 0-2 aty)
% 0.19/0.48  %            Number of variables   :   15 (   0   ^;  13   !;   2   ?;  15   :)
% 0.19/0.48  % SPC      : TH0_THM_NEQ_NAR
% 0.19/0.48  
% 0.19/0.48  % Comments : This problem is from the TPS library. Copyright (c) 2009 The TPS
% 0.19/0.48  %            project in the Department of Mathematical Sciences at Carnegie
% 0.19/0.48  %            Mellon University. Distributed under the Creative Commons copyleft
% 0.19/0.48  %            license: http://creativecommons.org/licenses/by-sa/3.0/
% 0.19/0.48  %------------------------------------------------------------------------------
% 0.19/0.48  thf(a_type,type,
% 0.19/0.48      a: $tType ).
% 0.19/0.48  
% 0.19/0.48  thf(b_type,type,
% 0.19/0.48      b: $tType ).
% 0.19/0.48  
% 0.19/0.48  thf(z,type,
% 0.19/0.48      z: a ).
% 0.19/0.48  
% 0.19/0.48  thf(cR,type,
% 0.19/0.48      cR: a > a > $o ).
% 0.19/0.48  
% 0.19/0.48  thf(f,type,
% 0.19/0.48      f: a > b > $o ).
% 0.19/0.48  
% 0.19/0.48  thf(cS,type,
% 0.19/0.48      cS: b > b > $o ).
% 0.19/0.48  
% 0.19/0.48  thf(cTHM552C_pme,conjecture,
% 0.19/0.48      ( ( ! [Xu: a,Xv: a,Xw: a] :
% 0.19/0.48            ( ( ( cR @ Xu @ Xv )
% 0.19/0.48              & ( cR @ Xw @ Xv ) )
% 0.19/0.48           => ( cR @ Xu @ Xw ) )
% 0.19/0.48        & ! [Xx: a] : ( cR @ Xx @ Xx ) )
% 0.19/0.48     => ( ( ! [Xx: a] :
% 0.19/0.48            ? [Xy: b] : ( f @ Xx @ Xy )
% 0.19/0.48          & ! [Xx: a,Xy1: b,Xy2: b] :
% 0.19/0.48              ( ( ( f @ Xx @ Xy1 )
% 0.19/0.48                & ( f @ Xx @ Xy2 ) )
% 0.19/0.48             => ( cS @ Xy1 @ Xy2 ) )
% 0.19/0.48          & ! [Xx1: a,Xx2: a,Xy: b] :
% 0.19/0.48              ( ( ( f @ Xx1 @ Xy )
% 0.19/0.48                & ( f @ Xx2 @ Xy ) )
% 0.19/0.48             => ( cR @ Xx1 @ Xx2 ) ) )
% 0.19/0.48       => ! [Xx: a] :
% 0.19/0.48          ? [Xy: b] :
% 0.19/0.48          ! [Xw: a] :
% 0.19/0.48            ( ( f @ Xx @ Xy )
% 0.19/0.48            | ( ~ ( f @ Xw @ Xy )
% 0.19/0.48              & ( cR @ Xx @ z ) ) ) ) ) ).
% 0.19/0.48  
% 0.19/0.48  %------------------------------------------------------------------------------
% 0.19/0.48  ------------------------
% 1.66/1.43  ---- Embedded in THF ---
% 1.66/1.43  %%% This output was generated by embedproblem, version 1.9.5 (library version 1.9).
% 1.66/1.43  %%% Generated on Tue Feb 24 12:40:10 EST 2026
% 1.66/1.43  %%% using '$$dhol' embedding, version 1.3.0.
% 1.66/1.43  %%% Logic specification used:
% 1.66/1.43  %%% thf(spec, logic, $$dhol).
% 1.66/1.43  
% 1.66/1.43  % SZS output start ListOfTHF for /export/starexec/sandbox/tmp/tmp.FluTenTuQH/DTF2DTF6289.p
% See solution above
% 1.66/1.43  ------------------------
% 1.66/1.44  ---- Cleaned THF ---
% 1.66/1.44  thf(a_type,type,
% 1.66/1.44      a: $tType ).
% 1.66/1.44  
% 1.66/1.44  thf(b_type,type,
% 1.66/1.44      b: $tType ).
% 1.66/1.44  
% 1.66/1.44  thf(z,type,
% 1.66/1.44      z: a ).
% 1.66/1.44  
% 1.66/1.44  thf(cR,type,
% 1.66/1.44      cR: a > a > $o ).
% 1.66/1.44  
% 1.66/1.44  thf(f,type,
% 1.66/1.44      f: a > b > $o ).
% 1.66/1.44  
% 1.66/1.44  thf(cS,type,
% 1.66/1.44      cS: b > b > $o ).
% 1.66/1.44  
% 1.66/1.44  thf(cTHM552C_pme,conjecture,
% 1.66/1.44      ( ( ! [Xu: a,Xv: a,Xw: a] :
% 1.66/1.44            ( ( ( cR @ Xu @ Xv )
% 1.66/1.44              & ( cR @ Xw @ Xv ) )
% 1.66/1.44           => ( cR @ Xu @ Xw ) )
% 1.66/1.44        & ! [Xx: a] : ( cR @ Xx @ Xx ) )
% 1.66/1.44     => ( ( ! [Xx: a] :
% 1.66/1.44            ? [Xy: b] : ( f @ Xx @ Xy )
% 1.66/1.44          & ! [Xx: a,Xy1: b,Xy2: b] :
% 1.66/1.44              ( ( ( f @ Xx @ Xy1 )
% 1.66/1.44                & ( f @ Xx @ Xy2 ) )
% 1.66/1.44             => ( cS @ Xy1 @ Xy2 ) )
% 1.66/1.44          & ! [Xx1: a,Xx2: a,Xy: b] :
% 1.66/1.44              ( ( ( f @ Xx1 @ Xy )
% 1.66/1.44                & ( f @ Xx2 @ Xy ) )
% 1.66/1.44             => ( cR @ Xx1 @ Xx2 ) ) )
% 1.66/1.44       => ! [Xx: a] :
% 1.66/1.44          ? [Xy: b] :
% 1.66/1.44          ! [Xw: a] :
% 1.66/1.44            ( ( f @ Xx @ Xy )
% 1.66/1.44            | ( ~ ( f @ Xw @ Xy )
% 1.66/1.44              & ( cR @ Xx @ z ) ) ) ) ) ).
% 1.66/1.44  ------------------------
% 1.66/1.46  % (6388)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_6289 for (2999ds/4Mi)
% 1.66/1.46  % (6387)lrs+1002_1:8_bd=off:fd=off:hud=10:tnu=1:i=183:si=on:rtra=on_0 on DTF2THF_6289 for (2999ds/183Mi)
% 1.66/1.46  % (6389)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_6289 for (2999ds/27Mi)
% 1.66/1.46  % (6390)lrs+10_1:1_au=on:inj=on:i=2:si=on:rtra=on_0 on DTF2THF_6289 for (2999ds/2Mi)
% 1.66/1.46  % (6391)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_6289 for (2999ds/2Mi)
% 1.66/1.46  % (6392)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_6289 for (2999ds/275Mi)
% 1.66/1.46  % (6393)lrs+1004_1:128_cond=on:e2e=on:sp=weighted_frequency:i=18:si=on:rtra=on_0 on DTF2THF_6289 for (2999ds/18Mi)
% 1.66/1.46  % (6390)Instruction limit reached!
% 1.66/1.46  % (6390)------------------------------
% 1.66/1.46  % (6390)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.66/1.46  % (6390)Termination reason: Unknown
% 1.66/1.46  % (6391)Instruction limit reached!
% 1.66/1.46  % (6391)------------------------------
% 1.66/1.46  % (6391)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.66/1.46  % (6390)Termination phase: Saturation
% 1.66/1.46  
% 1.66/1.46  % (6390)Memory used [KB]: 5500
% 1.66/1.46  % (6390)Time elapsed: 0.003 s
% 1.66/1.46  % (6390)Instructions burned: 3 (million)
% 1.66/1.46  % (6390)------------------------------
% 1.66/1.46  % (6390)------------------------------
% 1.66/1.46  % (6391)Termination reason: Unknown
% 1.66/1.46  % (6391)Termination phase: Saturation
% 1.66/1.46  
% 1.66/1.46  % (6391)Memory used [KB]: 5500
% 1.66/1.46  % (6391)Time elapsed: 0.003 s
% 1.66/1.46  % (6391)Instructions burned: 3 (million)
% 1.66/1.46  % (6391)------------------------------
% 1.66/1.46  % (6391)------------------------------
% 1.66/1.46  % (6389)First to succeed.
% 1.66/1.46  % (6388)Instruction limit reached!
% 1.66/1.46  % (6388)------------------------------
% 1.66/1.46  % (6388)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.66/1.46  % (6388)Termination reason: Unknown
% 1.66/1.46  % (6388)Termination phase: Saturation
% 1.66/1.46  
% 1.66/1.46  % (6388)Memory used [KB]: 5500
% 1.66/1.46  % (6388)Time elapsed: 0.004 s
% 1.66/1.46  % (6388)Instructions burned: 4 (million)
% 1.66/1.46  % (6388)------------------------------
% 1.66/1.46  % (6388)------------------------------
% 1.66/1.46  % (6392)Also succeeded, but the first one will report.
% 1.66/1.46  % (6387)Also succeeded, but the first one will report.
% 1.66/1.46  % (6389)Refutation found. Thanks to Tanya!
% 1.66/1.46  % SZS status Theorem for DTF2THF_6289
% 1.66/1.46  % SZS output start Proof for DTF2THF_6289
% 1.66/1.46  thf(type_def_5, type, a: $tType).
% 1.66/1.46  thf(type_def_7, type, b: $tType).
% 1.66/1.46  thf(func_def_0, type, a: $tType).
% 1.66/1.46  thf(func_def_1, type, b: $tType).
% 1.66/1.46  thf(func_def_2, type, z: a).
% 1.66/1.46  thf(func_def_3, type, cR: a > a > $o).
% 1.66/1.46  thf(func_def_4, type, f: a > b > $o).
% 1.66/1.46  thf(func_def_5, type, cS: b > b > $o).
% 1.66/1.46  thf(func_def_7, type, vEPSILON: !>[X0: $tType]:((X0 > $o) > X0)).
% 1.66/1.46  thf(func_def_10, type, sK0: a).
% 1.66/1.46  thf(func_def_11, type, sK1: b > a).
% 1.66/1.46  thf(func_def_12, type, sK2: a > b).
% 1.66/1.46  thf(f30,plain,(
% 1.66/1.46    $false),
% 1.66/1.46    inference(trivial_inequality_removal,[status(thm)],[f29])).
% 1.66/1.46  thf(f29,plain,(
% 1.66/1.46    ($true != $true)),
% 1.66/1.46    inference(superposition,[status(thm)],[f16,f14])).
% 1.66/1.46  thf(f14,plain,(
% 1.66/1.46    ( ! [X13 : a] : (($true = (f @ X13 @ (sK2 @ X13)))) )),
% 1.66/1.46    inference(cnf_transformation,[status(thm)],[f13])).
% 1.66/1.46  thf(f13,plain,(
% 1.66/1.46    ! [X0 : a] : ($true = (cR @ X0 @ X0)) & ! [X1 : b,X2 : a,X3 : b] : (($true != (f @ X2 @ X1)) | ($true = (cS @ X3 @ X1)) | ($true != (f @ X2 @ X3))) & ! [X4 : a,X5 : a,X6 : a] : (($true = (cR @ X4 @ X6)) | ($true != (cR @ X6 @ X5)) | ($true != (cR @ X4 @ X5))) & ! [X7 : b,X8 : a,X9 : a] : (($true != (f @ X9 @ X7)) | ((f @ X8 @ X7) != $true) | ($true = (cR @ X9 @ X8))) & ! [X11 : b] : (($true != (f @ sK0 @ X11)) & (($true = (f @ (sK1 @ X11) @ X11)) | ($true != (cR @ sK0 @ z)))) & ! [X13 : a] : ($true = (f @ X13 @ (sK2 @ X13)))),
% 1.66/1.46    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0,sK1,sK2])],[f9,f12,f11,f10])).
% 1.66/1.46  thf(f10,plain,(
% 1.66/1.46    ? [X10 : a] : ! [X11 : b] : ? [X12 : a] : (($true != (f @ X10 @ X11)) & (($true = (f @ X12 @ X11)) | ($true != (cR @ X10 @ z)))) => ! [X11 : b] : ? [X12 : a] : (($true != (f @ sK0 @ X11)) & (($true = (f @ X12 @ X11)) | ($true != (cR @ sK0 @ z))))),
% 1.66/1.46    introduced(definition,[],[choice_axiom])).
% 1.66/1.46  thf(f11,plain,(
% 1.66/1.46    ! [X11 : b] : (? [X12 : a] : (($true != (f @ sK0 @ X11)) & (($true = (f @ X12 @ X11)) | ($true != (cR @ sK0 @ z)))) => (($true != (f @ sK0 @ X11)) & (($true = (f @ (sK1 @ X11) @ X11)) | ($true != (cR @ sK0 @ z)))))),
% 1.66/1.46    introduced(definition,[],[choice_axiom])).
% 1.66/1.46  thf(f12,plain,(
% 1.66/1.46    ! [X13 : a] : (? [X14 : b] : ($true = (f @ X13 @ X14)) => ($true = (f @ X13 @ (sK2 @ X13))))),
% 1.66/1.46    introduced(definition,[],[choice_axiom])).
% 1.66/1.46  thf(f9,plain,(
% 1.66/1.46    ! [X0 : a] : ($true = (cR @ X0 @ X0)) & ! [X1 : b,X2 : a,X3 : b] : (($true != (f @ X2 @ X1)) | ($true = (cS @ X3 @ X1)) | ($true != (f @ X2 @ X3))) & ! [X4 : a,X5 : a,X6 : a] : (($true = (cR @ X4 @ X6)) | ($true != (cR @ X6 @ X5)) | ($true != (cR @ X4 @ X5))) & ! [X7 : b,X8 : a,X9 : a] : (($true != (f @ X9 @ X7)) | ((f @ X8 @ X7) != $true) | ($true = (cR @ X9 @ X8))) & ? [X10 : a] : ! [X11 : b] : ? [X12 : a] : (($true != (f @ X10 @ X11)) & (($true = (f @ X12 @ X11)) | ($true != (cR @ X10 @ z)))) & ! [X13 : a] : ? [X14 : b] : ($true = (f @ X13 @ X14))),
% 1.66/1.46    inference(rectify,[status(thm)],[f8])).
% 1.66/1.46  thf(f8,plain,(
% 1.66/1.46    ! [X0 : a] : ($true = (cR @ X0 @ X0)) & ! [X6 : b,X4 : a,X5 : b] : (($true != (f @ X4 @ X6)) | ((cS @ X5 @ X6) = $true) | ($true != (f @ X4 @ X5))) & ! [X1 : a,X3 : a,X2 : a] : (($true = (cR @ X1 @ X2)) | ($true != (cR @ X2 @ X3)) | ($true != (cR @ X1 @ X3))) & ! [X9 : b,X11 : a,X10 : a] : (($true != (f @ X10 @ X9)) | ($true != (f @ X11 @ X9)) | ($true = (cR @ X10 @ X11))) & ? [X12 : a] : ! [X13 : b] : ? [X14 : a] : (($true != (f @ X12 @ X13)) & (($true = (f @ X14 @ X13)) | ($true != (cR @ X12 @ z)))) & ! [X7 : a] : ? [X8 : b] : ($true = (f @ X7 @ X8))),
% 1.66/1.46    inference(flattening,[status(thm)],[f7])).
% 1.66/1.46  thf(f7,plain,(
% 1.66/1.46    (? [X12 : a] : ! [X13 : b] : ? [X14 : a] : (($true != (f @ X12 @ X13)) & (($true = (f @ X14 @ X13)) | ($true != (cR @ X12 @ z)))) & (! [X7 : a] : ? [X8 : b] : ($true = (f @ X7 @ X8)) & ! [X9 : b,X11 : a,X10 : a] : (($true = (cR @ X10 @ X11)) | (($true != (f @ X11 @ X9)) | ($true != (f @ X10 @ X9)))) & ! [X5 : b,X4 : a,X6 : b] : (((cS @ X5 @ X6) = $true) | (($true != (f @ X4 @ X5)) | ($true != (f @ X4 @ X6)))))) & (! [X0 : a] : ($true = (cR @ X0 @ X0)) & ! [X3 : a,X2 : a,X1 : a] : (($true = (cR @ X1 @ X2)) | (($true != (cR @ X1 @ X3)) | ($true != (cR @ X2 @ X3)))))),
% 1.66/1.46    inference(ennf_transformation,[status(thm)],[f6])).
% 1.66/1.46  thf(f6,plain,(
% 1.66/1.46    ~((! [X0 : a] : ($true = (cR @ X0 @ X0)) & ! [X3 : a,X2 : a,X1 : a] : ((($true = (cR @ X1 @ X3)) & ($true = (cR @ X2 @ X3))) => ($true = (cR @ X1 @ X2)))) => ((! [X7 : a] : ? [X8 : b] : ($true = (f @ X7 @ X8)) & ! [X9 : b,X11 : a,X10 : a] : ((($true = (f @ X11 @ X9)) & ($true = (f @ X10 @ X9))) => ($true = (cR @ X10 @ X11))) & ! [X5 : b,X4 : a,X6 : b] : ((($true = (f @ X4 @ X5)) & ($true = (f @ X4 @ X6))) => ((cS @ X5 @ X6) = $true))) => ! [X12 : a] : ? [X13 : b] : ! [X14 : a] : (($true = (f @ X12 @ X13)) | (($true != (f @ X14 @ X13)) & ($true = (cR @ X12 @ z))))))),
% 1.66/1.46    inference(flattening,[status(thm)],[f5])).
% 1.66/1.46  thf(f5,plain,(
% 1.66/1.46    ~((! [X0 : a] : ($true = (cR @ X0 @ X0)) & ! [X3 : a,X2 : a,X1 : a] : ((($true = (cR @ X1 @ X3)) & ($true = (cR @ X2 @ X3))) => ($true = (cR @ X1 @ X2)))) => ((! [X7 : a] : ? [X8 : b] : ($true = (f @ X7 @ X8)) & ! [X9 : b,X11 : a,X10 : a] : ((($true = (f @ X11 @ X9)) & ($true = (f @ X10 @ X9))) => ($true = (cR @ X10 @ X11))) & ! [X5 : b,X4 : a,X6 : b] : ((($true = (f @ X4 @ X5)) & ($true = (f @ X4 @ X6))) => ((cS @ X5 @ X6) = $true))) => ! [X12 : a] : ? [X13 : b] : ! [X14 : a] : ((~($true = (f @ X14 @ X13)) & ($true = (cR @ X12 @ z))) | ($true = (f @ X12 @ X13)))))),
% 1.66/1.46    inference(fool_elimination,[status(thm)],[f4])).
% 1.66/1.46  thf(f4,plain,(
% 1.66/1.46    ~((! [X0 : a] : (cR @ X0 @ X0) & ! [X1 : a,X2 : a,X3 : a] : (((cR @ X1 @ X3) & (cR @ X2 @ X3)) => (cR @ X1 @ X2))) => ((! [X4 : a,X5 : b,X6 : b] : (((f @ X4 @ X6) & (f @ X4 @ X5)) => (cS @ X5 @ X6)) & ! [X7 : a] : ? [X8 : b] : (f @ X7 @ X8) & ! [X9 : b,X10 : a,X11 : a] : (((f @ X10 @ X9) & (f @ X11 @ X9)) => (cR @ X10 @ X11))) => ! [X12 : a] : ? [X13 : b] : ! [X14 : a] : ((~(f @ X14 @ X13) & (cR @ X12 @ z)) | (f @ X12 @ X13))))),
% 1.66/1.46    inference(rectify,[status(thm)],[f2])).
% 1.66/1.46  thf(f2,negated_conjecture,(
% 1.66/1.46    ~((! [X3 : a] : (cR @ X3 @ X3) & ! [X0 : a,X2 : a,X1 : a] : (((cR @ X0 @ X1) & (cR @ X2 @ X1)) => (cR @ X0 @ X2))) => ((! [X3 : a,X5 : b,X6 : b] : (((f @ X3 @ X6) & (f @ X3 @ X5)) => (cS @ X5 @ X6)) & ! [X3 : a] : ? [X4 : b] : (f @ X3 @ X4) & ! [X4 : b,X7 : a,X8 : a] : (((f @ X7 @ X4) & (f @ X8 @ X4)) => (cR @ X7 @ X8))) => ! [X3 : a] : ? [X4 : b] : ! [X2 : a] : ((~(f @ X2 @ X4) & (cR @ X3 @ z)) | (f @ X3 @ X4))))),
% 1.66/1.46    inference(negated_conjecture,[status(cth)],[f1])).
% 1.66/1.46  thf(f1,conjecture,(
% 1.66/1.46    (! [X3 : a] : (cR @ X3 @ X3) & ! [X0 : a,X2 : a,X1 : a] : (((cR @ X0 @ X1) & (cR @ X2 @ X1)) => (cR @ X0 @ X2))) => ((! [X3 : a,X5 : b,X6 : b] : (((f @ X3 @ X6) & (f @ X3 @ X5)) => (cS @ X5 @ X6)) & ! [X3 : a] : ? [X4 : b] : (f @ X3 @ X4) & ! [X4 : b,X7 : a,X8 : a] : (((f @ X7 @ X4) & (f @ X8 @ X4)) => (cR @ X7 @ X8))) => ! [X3 : a] : ? [X4 : b] : ! [X2 : a] : ((~(f @ X2 @ X4) & (cR @ X3 @ z)) | (f @ X3 @ X4)))),
% 1.66/1.46    file('/export/starexec/sandbox/tmp/tmp.FluTenTuQH/DTF2THF_6289.p',cTHM552C_pme)).
% 1.66/1.46  thf(f16,plain,(
% 1.66/1.46    ( ! [X11 : b] : (($true != (f @ sK0 @ X11))) )),
% 1.66/1.46    inference(cnf_transformation,[status(thm)],[f13])).
% 1.66/1.46  % SZS output end Proof for DTF2THF_6289
% 1.66/1.46  % (6389)------------------------------
% 1.66/1.46  % (6389)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.66/1.46  % (6389)Termination reason: Refutation
% 1.66/1.46  
% 1.66/1.46  % (6389)Memory used [KB]: 5500
% 1.66/1.46  % (6389)Time elapsed: 0.005 s
% 1.66/1.46  % (6389)Instructions burned: 2 (million)
% 1.66/1.46  % (6389)------------------------------
% 1.66/1.46  % (6389)------------------------------
% 1.66/1.46  % (6386)Success in time 0.019 s
%------------------------------------------------------------------------------