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DT2H2X---1.9.5.THM-Ref.s

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%------------------------------------------------------------------------------
% File     : DT2H2X---1.9.5
% Problem  : SEU897^5 : 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 : n027.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 1.81s 1.53s
% Output   : Refutation 1.81s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   11
%            Number of leaves      :   13
% Syntax   : Number of formulae    :   59 (   1 unt;   0 typ;   8 def)
%            Number of atoms       :  424 ( 145 equ;   0 cnn)
%            Maximal formula atoms :   12 (   7 avg)
%            Number of connectives :  464 ( 110   ~; 106   |;  34   &; 189   @)
%                                         (  12 <=>;  12  =>;   0  <=;   1 <~>)
%            Maximal formula depth :   10 (   5 avg)
%            Number of types       :    2 (   1 usr)
%            Number of type conns  :   20 (  20   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   19 (  16 usr;  13 con; 0-2 aty)
%            Number of variables   :   94 (   2   ^;  66   !;  26   ?;  94   :)

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

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

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

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

thf(func_def_6,type,
    sK0: a ).

thf(func_def_7,type,
    sK1: a ).

thf(func_def_8,type,
    sK2: a > a ).

thf(func_def_9,type,
    sK3: a ).

thf(func_def_10,type,
    sK4: ( a > a ) > a > a ).

thf(func_def_12,type,
    ph6: 
      !>[X0: $tType] : X0 ).

thf(f96,plain,
    $false,
    inference(avatar_sat_refutation,[status(thm)],[f32,f36,f41,f48,f53,f57,f58,f59,f66,f68,f95]) ).

thf(f95,plain,
    ( spl5_5
    | ~ spl5_6
    | ~ spl5_8 ),
    inference(avatar_split_clause,[status(thm)],[f94,f55,f46,f43]) ).

thf(f43,definition,
    ( spl5_5
  <=> ! [X5: a] :
        ( ( ( cS @ X5 )
          = $true )
        | ( ( cR @ X5 )
         != $true ) ) ),
    introduced(definition,[new_symbols(naming,[spl5_5])],[avatar_definition]) ).

thf(f46,definition,
    ( spl5_6
  <=> ! [X8: a,X7: a > a] :
        ( ( ( X7 @ ( sK4 @ X7 @ ( X7 @ X8 ) ) )
          = ( X7 @ X8 ) )
        | ( ( cR @ X8 )
         != $true ) ) ),
    introduced(definition,[new_symbols(naming,[spl5_6])],[avatar_definition]) ).

thf(f55,definition,
    ( spl5_8
  <=> ! [X8: a,X7: a > a] :
        ( ( ( cR @ X8 )
         != $true )
        | ( ( cS @ ( sK4 @ X7 @ ( X7 @ X8 ) ) )
          = $true ) ) ),
    introduced(definition,[new_symbols(naming,[spl5_8])],[avatar_definition]) ).

thf(f94,plain,
    ( ! [X0: a] :
        ( ( ( cR @ X0 )
         != $true )
        | ( ( cS @ X0 )
          = $true ) )
    | ~ spl5_6
    | ~ spl5_8 ),
    inference(beta_eta_normalization,[status(thm)],[f93]) ).

thf(f93,plain,
    ( ! [X0: a] :
        ( ( ( cR @ X0 )
         != $true )
        | ( ( cS
            @ ( ^ [Y0: a] : Y0
              @ X0 ) )
          = $true ) )
    | ~ spl5_6
    | ~ spl5_8 ),
    inference(duplicate_literal_removal,[status(thm)],[f87]) ).

thf(f87,plain,
    ( ! [X0: a] :
        ( ( ( cR @ X0 )
         != $true )
        | ( ( cR @ X0 )
         != $true )
        | ( ( cS
            @ ( ^ [Y0: a] : Y0
              @ X0 ) )
          = $true ) )
    | ~ spl5_6
    | ~ spl5_8 ),
    inference(superposition,[status(thm)],[f56,f47]) ).

thf(f47,plain,
    ( ! [X8: a,X7: a > a] :
        ( ( ( X7 @ ( sK4 @ X7 @ ( X7 @ X8 ) ) )
          = ( X7 @ X8 ) )
        | ( ( cR @ X8 )
         != $true ) )
    | ~ spl5_6 ),
    inference(avatar_component_clause,[status(thm)],[f46]) ).

thf(f56,plain,
    ( ! [X8: a,X7: a > a] :
        ( ( ( cS @ ( sK4 @ X7 @ ( X7 @ X8 ) ) )
          = $true )
        | ( ( cR @ X8 )
         != $true ) )
    | ~ spl5_8 ),
    inference(avatar_component_clause,[status(thm)],[f55]) ).

thf(f68,plain,
    ( ~ spl5_2
    | ~ spl5_3
    | ~ spl5_4
    | ~ spl5_5 ),
    inference(avatar_contradiction_clause,[status(thm)],[f67]) ).

thf(f67,plain,
    ( $false
    | ~ spl5_2
    | ~ spl5_3
    | ~ spl5_4
    | ~ spl5_5 ),
    inference(subsumption_resolution,[status(thm)],[f64,f40]) ).

thf(f40,plain,
    ( ( ( cR @ sK3 )
      = $true )
    | ~ spl5_4 ),
    inference(avatar_component_clause,[status(thm)],[f38]) ).

thf(f38,definition,
    ( spl5_4
  <=> ( ( cR @ sK3 )
      = $true ) ),
    introduced(definition,[new_symbols(naming,[spl5_4])],[avatar_definition]) ).

thf(f64,plain,
    ( ( ( cR @ sK3 )
     != $true )
    | ~ spl5_2
    | ~ spl5_3
    | ~ spl5_5 ),
    inference(trivial_inequality_removal,[status(thm)],[f63]) ).

thf(f63,plain,
    ( ( ( cR @ sK3 )
     != $true )
    | ( $true != $true )
    | ~ spl5_2
    | ~ spl5_3
    | ~ spl5_5 ),
    inference(superposition,[status(thm)],[f61,f44]) ).

thf(f44,plain,
    ( ! [X5: a] :
        ( ( ( cS @ X5 )
          = $true )
        | ( ( cR @ X5 )
         != $true ) )
    | ~ spl5_5 ),
    inference(avatar_component_clause,[status(thm)],[f43]) ).

thf(f61,plain,
    ( ( ( cS @ sK3 )
     != $true )
    | ~ spl5_2
    | ~ spl5_3 ),
    inference(trivial_inequality_removal,[status(thm)],[f60]) ).

thf(f60,plain,
    ( ( ( cS @ sK3 )
     != $true )
    | ( sK1 != sK1 )
    | ~ spl5_2
    | ~ spl5_3 ),
    inference(superposition,[status(thm)],[f35,f31]) ).

thf(f31,plain,
    ( ( sK1
      = ( sK2 @ sK3 ) )
    | ~ spl5_2 ),
    inference(avatar_component_clause,[status(thm)],[f29]) ).

thf(f29,definition,
    ( spl5_2
  <=> ( sK1
      = ( sK2 @ sK3 ) ) ),
    introduced(definition,[new_symbols(naming,[spl5_2])],[avatar_definition]) ).

thf(f35,plain,
    ( ! [X4: a] :
        ( ( ( sK2 @ X4 )
         != sK1 )
        | ( ( cS @ X4 )
         != $true ) )
    | ~ spl5_3 ),
    inference(avatar_component_clause,[status(thm)],[f34]) ).

thf(f34,definition,
    ( spl5_3
  <=> ! [X4: a] :
        ( ( ( cS @ X4 )
         != $true )
        | ( ( sK2 @ X4 )
         != sK1 ) ) ),
    introduced(definition,[new_symbols(naming,[spl5_3])],[avatar_definition]) ).

thf(f66,plain,
    ( ~ spl5_7
    | spl5_1
    | ~ spl5_5 ),
    inference(avatar_split_clause,[status(thm)],[f65,f43,f25,f50]) ).

thf(f50,definition,
    ( spl5_7
  <=> ( $true
      = ( cR @ sK0 ) ) ),
    introduced(definition,[new_symbols(naming,[spl5_7])],[avatar_definition]) ).

thf(f25,definition,
    ( spl5_1
  <=> ( ( cS @ sK0 )
      = $true ) ),
    introduced(definition,[new_symbols(naming,[spl5_1])],[avatar_definition]) ).

thf(f65,plain,
    ( ( $true
     != ( cR @ sK0 ) )
    | spl5_1
    | ~ spl5_5 ),
    inference(trivial_inequality_removal,[status(thm)],[f62]) ).

thf(f62,plain,
    ( ( $true != $true )
    | ( $true
     != ( cR @ sK0 ) )
    | spl5_1
    | ~ spl5_5 ),
    inference(superposition,[status(thm)],[f27,f44]) ).

thf(f27,plain,
    ( ( ( cS @ sK0 )
     != $true )
    | spl5_1 ),
    inference(avatar_component_clause,[status(thm)],[f25]) ).

thf(f59,plain,
    ( spl5_4
    | spl5_7 ),
    inference(avatar_split_clause,[status(thm)],[f20,f50,f38]) ).

thf(f20,plain,
    ( ( $true
      = ( cR @ sK0 ) )
    | ( ( cR @ sK3 )
      = $true ) ),
    inference(cnf_transformation,[status(thm)],[f13]) ).

thf(f13,plain,
    ( ( ( ( $true
          = ( cR @ sK0 ) )
        & ( ( cS @ sK0 )
         != $true ) )
      | ( ( sK1
          = ( sK2 @ sK3 ) )
        & ( ( cR @ sK3 )
          = $true )
        & ! [X4: a] :
            ( ( ( cS @ X4 )
             != $true )
            | ( ( sK2 @ X4 )
             != sK1 ) ) ) )
    & ( ! [X5: a] :
          ( ( ( cR @ X5 )
           != $true )
          | ( ( cS @ X5 )
            = $true ) )
      | ! [X6: a,X7: a > a] :
          ( ! [X8: a] :
              ( ( ( X7 @ X8 )
               != X6 )
              | ( ( cR @ X8 )
               != $true ) )
          | ( ( $true
              = ( cS @ ( sK4 @ X7 @ X6 ) ) )
            & ( ( X7 @ ( sK4 @ X7 @ X6 ) )
              = X6 ) ) ) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0,sK1,sK2,sK3,sK4])],[f8,f12,f11,f10,f9]) ).

thf(f9,plain,
    ( ? [X0: a] :
        ( ( ( cR @ X0 )
          = $true )
        & ( ( cS @ X0 )
         != $true ) )
   => ( ( $true
        = ( cR @ sK0 ) )
      & ( ( cS @ sK0 )
       != $true ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f10,plain,
    ( ? [X1: a,X2: a > a] :
        ( ? [X3: a] :
            ( ( ( X2 @ X3 )
              = X1 )
            & ( $true
              = ( cR @ X3 ) ) )
        & ! [X4: a] :
            ( ( ( cS @ X4 )
             != $true )
            | ( ( X2 @ X4 )
             != X1 ) ) )
   => ( ? [X3: a] :
          ( ( sK1
            = ( sK2 @ X3 ) )
          & ( $true
            = ( cR @ X3 ) ) )
      & ! [X4: a] :
          ( ( ( cS @ X4 )
           != $true )
          | ( ( sK2 @ X4 )
           != sK1 ) ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f11,plain,
    ( ? [X3: a] :
        ( ( sK1
          = ( sK2 @ X3 ) )
        & ( $true
          = ( cR @ X3 ) ) )
   => ( ( sK1
        = ( sK2 @ sK3 ) )
      & ( ( cR @ sK3 )
        = $true ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f12,plain,
    ! [X6: a,X7: a > a] :
      ( ? [X9: a] :
          ( ( $true
            = ( cS @ X9 ) )
          & ( ( X7 @ X9 )
            = X6 ) )
     => ( ( $true
          = ( cS @ ( sK4 @ X7 @ X6 ) ) )
        & ( ( X7 @ ( sK4 @ X7 @ X6 ) )
          = X6 ) ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f8,plain,
    ( ( ? [X0: a] :
          ( ( ( cR @ X0 )
            = $true )
          & ( ( cS @ X0 )
           != $true ) )
      | ? [X1: a,X2: a > a] :
          ( ? [X3: a] :
              ( ( ( X2 @ X3 )
                = X1 )
              & ( $true
                = ( cR @ X3 ) ) )
          & ! [X4: a] :
              ( ( ( cS @ X4 )
               != $true )
              | ( ( X2 @ X4 )
               != X1 ) ) ) )
    & ( ! [X5: a] :
          ( ( ( cR @ X5 )
           != $true )
          | ( ( cS @ X5 )
            = $true ) )
      | ! [X6: a,X7: a > a] :
          ( ! [X8: a] :
              ( ( ( X7 @ X8 )
               != X6 )
              | ( ( cR @ X8 )
               != $true ) )
          | ? [X9: a] :
              ( ( $true
                = ( cS @ X9 ) )
              & ( ( X7 @ X9 )
                = X6 ) ) ) ) ),
    inference(rectify,[status(thm)],[f7]) ).

thf(f7,plain,
    ( ( ? [X4: a] :
          ( ( ( cR @ X4 )
            = $true )
          & ( ( cS @ X4 )
           != $true ) )
      | ? [X0: a,X1: a > a] :
          ( ? [X2: a] :
              ( ( ( X1 @ X2 )
                = X0 )
              & ( ( cR @ X2 )
                = $true ) )
          & ! [X3: a] :
              ( ( ( cS @ X3 )
               != $true )
              | ( ( X1 @ X3 )
               != X0 ) ) ) )
    & ( ! [X4: a] :
          ( ( ( cR @ X4 )
           != $true )
          | ( ( cS @ X4 )
            = $true ) )
      | ! [X0: a,X1: a > a] :
          ( ! [X2: a] :
              ( ( ( X1 @ X2 )
               != X0 )
              | ( ( cR @ X2 )
               != $true ) )
          | ? [X3: a] :
              ( ( ( cS @ X3 )
                = $true )
              & ( ( X1 @ X3 )
                = X0 ) ) ) ) ),
    inference(nnf_transformation,[status(thm)],[f6]) ).

thf(f6,plain,
    ( ! [X0: a,X1: a > a] :
        ( ! [X2: a] :
            ( ( ( X1 @ X2 )
             != X0 )
            | ( ( cR @ X2 )
             != $true ) )
        | ? [X3: a] :
            ( ( ( cS @ X3 )
              = $true )
            & ( ( X1 @ X3 )
              = X0 ) ) )
  <~> ! [X4: a] :
        ( ( ( cR @ X4 )
         != $true )
        | ( ( cS @ X4 )
          = $true ) ) ),
    inference(ennf_transformation,[status(thm)],[f5]) ).

thf(f5,plain,
    ~ ( ! [X1: a > a,X0: a] :
          ( ? [X2: a] :
              ( ( ( X1 @ X2 )
                = X0 )
              & ( ( cR @ X2 )
                = $true ) )
         => ? [X3: a] :
              ( ( ( cS @ X3 )
                = $true )
              & ( ( X1 @ X3 )
                = X0 ) ) )
    <=> ! [X4: a] :
          ( ( ( cR @ X4 )
            = $true )
         => ( ( cS @ X4 )
            = $true ) ) ),
    inference(fool_elimination,[status(thm)],[f4]) ).

thf(f4,plain,
    ~ ( ! [X0: a,X1: a > a] :
          ( ? [X2: a] :
              ( ( ( X1 @ X2 )
                = X0 )
              & ( cR @ X2 ) )
         => ? [X3: a] :
              ( ( ( X1 @ X3 )
                = X0 )
              & ( cS @ X3 ) ) )
    <=> ! [X4: a] :
          ( ( cR @ X4 )
         => ( cS @ X4 ) ) ),
    inference(rectify,[status(thm)],[f2]) ).

thf(f2,negated_conjecture,
    ~ ( ! [X0: a,X1: a > a] :
          ( ? [X2: a] :
              ( ( ( X1 @ X2 )
                = X0 )
              & ( cR @ X2 ) )
         => ? [X2: a] :
              ( ( ( X1 @ X2 )
                = X0 )
              & ( cS @ X2 ) ) )
    <=> ! [X0: a] :
          ( ( cR @ X0 )
         => ( cS @ X0 ) ) ),
    inference(negated_conjecture,[status(cth)],[f1]) ).

thf(f1,conjecture,
    ( ! [X0: a,X1: a > a] :
        ( ? [X2: a] :
            ( ( ( X1 @ X2 )
              = X0 )
            & ( cR @ X2 ) )
       => ? [X2: a] :
            ( ( ( X1 @ X2 )
              = X0 )
            & ( cS @ X2 ) ) )
  <=> ! [X0: a] :
        ( ( cR @ X0 )
       => ( cS @ X0 ) ) ),
    file('/export/starexec/sandbox/tmp/tmp.VbzzVtDKM4/DTF2THF_6797.p',cTHM30_pme) ).

thf(f58,plain,
    ( spl5_2
    | spl5_7 ),
    inference(avatar_split_clause,[status(thm)],[f21,f50,f29]) ).

thf(f21,plain,
    ( ( sK1
      = ( sK2 @ sK3 ) )
    | ( $true
      = ( cR @ sK0 ) ) ),
    inference(cnf_transformation,[status(thm)],[f13]) ).

thf(f57,plain,
    ( spl5_8
    | spl5_5 ),
    inference(avatar_split_clause,[status(thm)],[f22,f43,f55]) ).

thf(f22,plain,
    ! [X8: a,X7: a > a,X5: a] :
      ( ( ( cS @ X5 )
        = $true )
      | ( ( cR @ X8 )
       != $true )
      | ( ( cS @ ( sK4 @ X7 @ ( X7 @ X8 ) ) )
        = $true )
      | ( ( cR @ X5 )
       != $true ) ),
    inference(equality_resolution,[status(thm)],[f15]) ).

thf(f15,plain,
    ! [X8: a,X6: a,X7: a > a,X5: a] :
      ( ( ( cR @ X5 )
       != $true )
      | ( ( cS @ X5 )
        = $true )
      | ( ( X7 @ X8 )
       != X6 )
      | ( ( cR @ X8 )
       != $true )
      | ( $true
        = ( cS @ ( sK4 @ X7 @ X6 ) ) ) ),
    inference(cnf_transformation,[status(thm)],[f13]) ).

thf(f53,plain,
    ( spl5_3
    | spl5_7 ),
    inference(avatar_split_clause,[status(thm)],[f19,f50,f34]) ).

thf(f19,plain,
    ! [X4: a] :
      ( ( ( cS @ X4 )
       != $true )
      | ( ( sK2 @ X4 )
       != sK1 )
      | ( $true
        = ( cR @ sK0 ) ) ),
    inference(cnf_transformation,[status(thm)],[f13]) ).

thf(f48,plain,
    ( spl5_5
    | spl5_6 ),
    inference(avatar_split_clause,[status(thm)],[f23,f46,f43]) ).

thf(f23,plain,
    ! [X8: a,X7: a > a,X5: a] :
      ( ( ( X7 @ ( sK4 @ X7 @ ( X7 @ X8 ) ) )
        = ( X7 @ X8 ) )
      | ( ( cS @ X5 )
        = $true )
      | ( ( cR @ X8 )
       != $true )
      | ( ( cR @ X5 )
       != $true ) ),
    inference(equality_resolution,[status(thm)],[f14]) ).

thf(f14,plain,
    ! [X8: a,X6: a,X7: a > a,X5: a] :
      ( ( ( cR @ X5 )
       != $true )
      | ( ( cS @ X5 )
        = $true )
      | ( ( X7 @ X8 )
       != X6 )
      | ( ( cR @ X8 )
       != $true )
      | ( ( X7 @ ( sK4 @ X7 @ X6 ) )
        = X6 ) ),
    inference(cnf_transformation,[status(thm)],[f13]) ).

thf(f41,plain,
    ( spl5_4
    | ~ spl5_1 ),
    inference(avatar_split_clause,[status(thm)],[f17,f25,f38]) ).

thf(f17,plain,
    ( ( ( cR @ sK3 )
      = $true )
    | ( ( cS @ sK0 )
     != $true ) ),
    inference(cnf_transformation,[status(thm)],[f13]) ).

thf(f36,plain,
    ( ~ spl5_1
    | spl5_3 ),
    inference(avatar_split_clause,[status(thm)],[f16,f34,f25]) ).

thf(f16,plain,
    ! [X4: a] :
      ( ( ( cS @ sK0 )
       != $true )
      | ( ( cS @ X4 )
       != $true )
      | ( ( sK2 @ X4 )
       != sK1 ) ),
    inference(cnf_transformation,[status(thm)],[f13]) ).

thf(f32,plain,
    ( ~ spl5_1
    | spl5_2 ),
    inference(avatar_split_clause,[status(thm)],[f18,f29,f25]) ).

thf(f18,plain,
    ( ( ( cS @ sK0 )
     != $true )
    | ( sK1
      = ( sK2 @ sK3 ) ) ),
    inference(cnf_transformation,[status(thm)],[f13]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.11  % Problem  : SEU897^5 : 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
% 0.17/0.34  % Computer : n027.cluster.edu
% 0.17/0.34  % Model    : x86_64 x86_64
% 0.17/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.17/0.34  % Memory   : 8042.1875MB
% 0.17/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.17/0.34  % CPULimit : 300
% 0.17/0.34  % WCLimit  : 300
% 0.17/0.34  % DateTime : Tue Feb 24 12:36:37 EST 2026
% 0.17/0.34  % CPUTime  : 
% 0.17/0.34  Running /export/starexec/sandbox/solver/bin/run_DT2H2X /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 0.31/0.48  ---- Original DTF file ---
% 0.31/0.48  thf(spec,logic,$$dhol).
% 0.31/0.48  %------------------------------------------------------------------------------
% 0.31/0.48  % File     : SEU897^5 : TPTP v9.2.1. Released v4.0.0.
% 0.31/0.48  % Domain   : Set Theory
% 0.31/0.48  % Problem  : TPS problem THM30
% 0.31/0.48  % Version  : Especial.
% 0.31/0.48  % English  :
% 0.31/0.48  
% 0.31/0.48  % Refs     : [Bro09] Brown (2009), Email to Geoff Sutcliffe
% 0.31/0.48  % Source   : [Bro09]
% 0.31/0.48  % Names    : tps_0413 [Bro09]
% 0.31/0.48  %          : THM30 [TPS]
% 0.31/0.48  
% 0.31/0.48  % Status   : Theorem
% 0.31/0.48  % Rating   : 0.22 v9.1.0, 0.25 v9.0.0, 0.30 v8.2.0, 0.46 v8.1.0, 0.45 v7.5.0, 0.14 v7.4.0, 0.22 v7.3.0, 0.33 v7.2.0, 0.25 v7.0.0, 0.43 v6.4.0, 0.33 v6.3.0, 0.40 v6.2.0, 0.14 v6.1.0, 0.43 v6.0.0, 0.29 v5.5.0, 0.33 v5.4.0, 0.40 v5.3.0, 0.60 v5.2.0, 0.40 v5.0.0, 0.60 v4.1.0, 0.67 v4.0.0
% 0.31/0.48  % Syntax   : Number of formulae    :    4 (   0 unt;   3 typ;   0 def)
% 0.31/0.48  %            Number of atoms       :    6 (   2 equ;   0 cnn)
% 0.31/0.48  %            Maximal formula atoms :    6 (   6 avg)
% 0.31/0.48  %            Number of connectives :   11 (   0   ~;   0   |;   2   &;   6   @)
% 0.31/0.48  %                                         (   1 <=>;   2  =>;   0  <=;   0 <~>)
% 0.31/0.48  %            Maximal formula depth :    8 (   8 avg)
% 0.31/0.48  %            Number of types       :    2 (   1 usr)
% 0.31/0.48  %            Number of type conns  :    3 (   3   >;   0   *;   0   +;   0  <<)
% 0.31/0.48  %            Number of symbols     :    3 (   2 usr;   0 con; 1-2 aty)
% 0.31/0.48  %            Number of variables   :    5 (   0   ^;   3   !;   2   ?;   5   :)
% 0.31/0.48  % SPC      : TH0_THM_EQU_NAR
% 0.31/0.48  
% 0.31/0.48  % Comments : This problem is from the TPS library. Copyright (c) 2009 The TPS
% 0.31/0.48  %            project in the Department of Mathematical Sciences at Carnegie
% 0.31/0.48  %            Mellon University. Distributed under the Creative Commons copyleft
% 0.31/0.48  %            license: http://creativecommons.org/licenses/by-sa/3.0/
% 0.31/0.48  %          : Polymorphic definitions expanded.
% 0.31/0.48  %------------------------------------------------------------------------------
% 0.31/0.48  thf(a_type,type,
% 0.31/0.48      a: $tType ).
% 0.31/0.48  
% 0.31/0.48  thf(cS,type,
% 0.31/0.48      cS: a > $o ).
% 0.31/0.48  
% 0.31/0.48  thf(cR,type,
% 0.31/0.48      cR: a > $o ).
% 0.31/0.48  
% 0.31/0.48  thf(cTHM30_pme,conjecture,
% 0.31/0.48      ( ! [Xx: a] :
% 0.31/0.48          ( ( cR @ Xx )
% 0.31/0.48         => ( cS @ Xx ) )
% 0.31/0.48    <=> ! [F: a > a,Xx: a] :
% 0.31/0.48          ( ? [Xt: a] :
% 0.31/0.48              ( ( cR @ Xt )
% 0.31/0.48              & ( Xx
% 0.31/0.48                = ( F @ Xt ) ) )
% 0.31/0.48         => ? [Xt: a] :
% 0.31/0.48              ( ( cS @ Xt )
% 0.31/0.48              & ( Xx
% 0.31/0.48                = ( F @ Xt ) ) ) ) ) ).
% 0.31/0.48  
% 0.31/0.48  %------------------------------------------------------------------------------
% 0.31/0.48  ------------------------
% 1.61/1.49  ---- Embedded in THF ---
% 1.61/1.49  %%% This output was generated by embedproblem, version 1.9.5 (library version 1.9).
% 1.61/1.49  %%% Generated on Tue Feb 24 12:36:38 EST 2026
% 1.61/1.49  %%% using '$$dhol' embedding, version 1.3.0.
% 1.61/1.49  %%% Logic specification used:
% 1.61/1.49  %%% thf(spec, logic, $$dhol).
% 1.61/1.49  
% 1.61/1.49  % SZS output start ListOfTHF for /export/starexec/sandbox/tmp/tmp.VbzzVtDKM4/DTF2DTF6797.p
% See solution above
% 1.61/1.49  ------------------------
% 1.81/1.50  ---- Cleaned THF ---
% 1.81/1.50  thf(a_type,type,
% 1.81/1.50      a: $tType ).
% 1.81/1.50  
% 1.81/1.50  thf(cS,type,
% 1.81/1.50      cS: a > $o ).
% 1.81/1.50  
% 1.81/1.50  thf(cR,type,
% 1.81/1.50      cR: a > $o ).
% 1.81/1.50  
% 1.81/1.50  thf(cTHM30_pme,conjecture,
% 1.81/1.50      ( ! [Xx: a] :
% 1.81/1.50          ( ( cR @ Xx )
% 1.81/1.50         => ( cS @ Xx ) )
% 1.81/1.50    <=> ! [F: a > a,Xx: a] :
% 1.81/1.50          ( ? [Xt: a] :
% 1.81/1.50              ( ( cR @ Xt )
% 1.81/1.50              & ( Xx
% 1.81/1.50                = ( F @ Xt ) ) )
% 1.81/1.50         => ? [Xt: a] :
% 1.81/1.50              ( ( cS @ Xt )
% 1.81/1.50              & ( Xx
% 1.81/1.50                = ( F @ Xt ) ) ) ) ) ).
% 1.81/1.50  ------------------------
% 1.81/1.52  % (6927)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_6797 for (3000ds/27Mi)
% 1.81/1.52  % (6928)lrs+10_1:1_au=on:inj=on:i=2:si=on:rtra=on_0 on DTF2THF_6797 for (3000ds/2Mi)
% 1.81/1.52  % (6931)lrs+1004_1:128_cond=on:e2e=on:sp=weighted_frequency:i=18:si=on:rtra=on_0 on DTF2THF_6797 for (3000ds/18Mi)
% 1.81/1.52  % (6925)lrs+1002_1:8_bd=off:fd=off:hud=10:tnu=1:i=183:si=on:rtra=on_0 on DTF2THF_6797 for (3000ds/183Mi)
% 1.81/1.52  % (6929)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_6797 for (3000ds/2Mi)
% 1.81/1.52  % (6930)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_6797 for (3000ds/275Mi)
% 1.81/1.52  % (6926)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_6797 for (3000ds/4Mi)
% 1.81/1.52  % (6928)Instruction limit reached!
% 1.81/1.52  % (6928)------------------------------
% 1.81/1.52  % (6928)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.81/1.52  % (6928)Termination reason: Unknown
% 1.81/1.52  % (6928)Termination phase: Property scanning
% 1.81/1.52  
% 1.81/1.52  % (6929)Instruction limit reached!
% 1.81/1.52  % (6929)------------------------------
% 1.81/1.52  % (6929)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.81/1.52  % (6929)Termination reason: Unknown
% 1.81/1.52  % (6929)Termination phase: Saturation
% 1.81/1.52  
% 1.81/1.52  % (6929)Memory used [KB]: 895
% 1.81/1.52  % (6929)Time elapsed: 0.003 s
% 1.81/1.52  % (6929)Instructions burned: 2 (million)
% 1.81/1.52  % (6929)------------------------------
% 1.81/1.52  % (6929)------------------------------
% 1.81/1.52  % (6928)Memory used [KB]: 895
% 1.81/1.52  % (6928)Time elapsed: 0.003 s
% 1.81/1.52  % (6928)Instructions burned: 2 (million)
% 1.81/1.52  % (6928)------------------------------
% 1.81/1.52  % (6928)------------------------------
% 1.81/1.52  % (6926)Instruction limit reached!
% 1.81/1.52  % (6926)------------------------------
% 1.81/1.52  % (6926)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.81/1.52  % (6926)Termination reason: Unknown
% 1.81/1.52  % (6926)Termination phase: Saturation
% 1.81/1.52  
% 1.81/1.52  % (6926)Memory used [KB]: 5500
% 1.81/1.52  % (6927)Refutation not found, incomplete strategy
% 1.81/1.52  % (6927)------------------------------
% 1.81/1.52  % (6927)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.81/1.52  % (6927)Termination reason: Refutation not found, incomplete strategy
% 1.81/1.52  
% 1.81/1.52  
% 1.81/1.52  % (6927)Memory used [KB]: 5500
% 1.81/1.52  % (6927)Time elapsed: 0.004 s
% 1.81/1.52  % (6927)Instructions burned: 4 (million)
% 1.81/1.52  % (6927)------------------------------
% 1.81/1.52  % (6927)------------------------------
% 1.81/1.52  % (6926)Time elapsed: 0.004 s
% 1.81/1.52  % (6926)Instructions burned: 4 (million)
% 1.81/1.52  % (6926)------------------------------
% 1.81/1.52  % (6926)------------------------------
% 1.81/1.53  % (6930)Refutation not found, incomplete strategy
% 1.81/1.53  % (6930)------------------------------
% 1.81/1.53  % (6930)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.81/1.53  % (6930)Termination reason: Refutation not found, incomplete strategy
% 1.81/1.53  
% 1.81/1.53  
% 1.81/1.53  % (6930)Memory used [KB]: 5500
% 1.81/1.53  % (6930)Time elapsed: 0.006 s
% 1.81/1.53  % (6930)Instructions burned: 6 (million)
% 1.81/1.53  % (6930)------------------------------
% 1.81/1.53  % (6930)------------------------------
% 1.81/1.53  % (6925)First to succeed.
% 1.81/1.53  % (6925)Refutation found. Thanks to Tanya!
% 1.81/1.53  % SZS status Theorem for DTF2THF_6797
% 1.81/1.53  % SZS output start Proof for DTF2THF_6797
% 1.81/1.53  thf(type_def_5, type, a: $tType).
% 1.81/1.53  thf(func_def_0, type, a: $tType).
% 1.81/1.53  thf(func_def_1, type, cS: a > $o).
% 1.81/1.53  thf(func_def_2, type, cR: a > $o).
% 1.81/1.53  thf(func_def_6, type, sK0: a).
% 1.81/1.53  thf(func_def_7, type, sK1: a).
% 1.81/1.53  thf(func_def_8, type, sK2: a > a).
% 1.81/1.53  thf(func_def_9, type, sK3: a).
% 1.81/1.53  thf(func_def_10, type, sK4: (a > a) > a > a).
% 1.81/1.53  thf(func_def_12, type, ph6: !>[X0: $tType]:(X0)).
% 1.81/1.53  thf(f96,plain,(
% 1.81/1.53    $false),
% 1.81/1.53    inference(avatar_sat_refutation,[status(thm)],[f32,f36,f41,f48,f53,f57,f58,f59,f66,f68,f95])).
% 1.81/1.53  thf(f95,plain,(
% 1.81/1.53    spl5_5 | ~spl5_6 | ~spl5_8),
% 1.81/1.53    inference(avatar_split_clause,[status(thm)],[f94,f55,f46,f43])).
% 1.81/1.53  thf(f43,definition,(
% 1.81/1.53    spl5_5 <=> ! [X5 : a] : (((cS @ X5) = $true) | ((cR @ X5) != $true))),
% 1.81/1.53    introduced(definition,[new_symbols(naming,[spl5_5])],[avatar_definition])).
% 1.81/1.53  thf(f46,definition,(
% 1.81/1.53    spl5_6 <=> ! [X8 : a,X7 : a > a] : (((X7 @ (sK4 @ X7 @ (X7 @ X8))) = (X7 @ X8)) | ((cR @ X8) != $true))),
% 1.81/1.53    introduced(definition,[new_symbols(naming,[spl5_6])],[avatar_definition])).
% 1.81/1.53  thf(f55,definition,(
% 1.81/1.53    spl5_8 <=> ! [X8 : a,X7 : a > a] : (((cR @ X8) != $true) | ((cS @ (sK4 @ X7 @ (X7 @ X8))) = $true))),
% 1.81/1.53    introduced(definition,[new_symbols(naming,[spl5_8])],[avatar_definition])).
% 1.81/1.53  thf(f94,plain,(
% 1.81/1.53    ( ! [X0 : a] : (((cR @ X0) != $true) | ((cS @ X0) = $true)) ) | (~spl5_6 | ~spl5_8)),
% 1.81/1.53    inference(beta_eta_normalization,[status(thm)],[f93])).
% 1.81/1.53  thf(f93,plain,(
% 1.81/1.53    ( ! [X0 : a] : (((cR @ X0) != $true) | ((cS @ ((^[Y0 : a]: (Y0)) @ X0)) = $true)) ) | (~spl5_6 | ~spl5_8)),
% 1.81/1.53    inference(duplicate_literal_removal,[status(thm)],[f87])).
% 1.81/1.53  thf(f87,plain,(
% 1.81/1.53    ( ! [X0 : a] : (((cR @ X0) != $true) | ((cR @ X0) != $true) | ((cS @ ((^[Y0 : a]: (Y0)) @ X0)) = $true)) ) | (~spl5_6 | ~spl5_8)),
% 1.81/1.53    inference(superposition,[status(thm)],[f56,f47])).
% 1.81/1.53  thf(f47,plain,(
% 1.81/1.53    ( ! [X8 : a,X7 : a > a] : (((X7 @ (sK4 @ X7 @ (X7 @ X8))) = (X7 @ X8)) | ((cR @ X8) != $true)) ) | ~spl5_6),
% 1.81/1.53    inference(avatar_component_clause,[status(thm)],[f46])).
% 1.81/1.53  thf(f56,plain,(
% 1.81/1.53    ( ! [X8 : a,X7 : a > a] : (((cS @ (sK4 @ X7 @ (X7 @ X8))) = $true) | ((cR @ X8) != $true)) ) | ~spl5_8),
% 1.81/1.53    inference(avatar_component_clause,[status(thm)],[f55])).
% 1.81/1.53  thf(f68,plain,(
% 1.81/1.53    ~spl5_2 | ~spl5_3 | ~spl5_4 | ~spl5_5),
% 1.81/1.53    inference(avatar_contradiction_clause,[status(thm)],[f67])).
% 1.81/1.53  thf(f67,plain,(
% 1.81/1.53    $false | (~spl5_2 | ~spl5_3 | ~spl5_4 | ~spl5_5)),
% 1.81/1.53    inference(subsumption_resolution,[status(thm)],[f64,f40])).
% 1.81/1.53  thf(f40,plain,(
% 1.81/1.53    ((cR @ sK3) = $true) | ~spl5_4),
% 1.81/1.53    inference(avatar_component_clause,[status(thm)],[f38])).
% 1.81/1.53  thf(f38,definition,(
% 1.81/1.53    spl5_4 <=> ((cR @ sK3) = $true)),
% 1.81/1.53    introduced(definition,[new_symbols(naming,[spl5_4])],[avatar_definition])).
% 1.81/1.53  thf(f64,plain,(
% 1.81/1.53    ((cR @ sK3) != $true) | (~spl5_2 | ~spl5_3 | ~spl5_5)),
% 1.81/1.53    inference(trivial_inequality_removal,[status(thm)],[f63])).
% 1.81/1.53  thf(f63,plain,(
% 1.81/1.53    ((cR @ sK3) != $true) | ($true != $true) | (~spl5_2 | ~spl5_3 | ~spl5_5)),
% 1.81/1.53    inference(superposition,[status(thm)],[f61,f44])).
% 1.81/1.53  thf(f44,plain,(
% 1.81/1.53    ( ! [X5 : a] : (((cS @ X5) = $true) | ((cR @ X5) != $true)) ) | ~spl5_5),
% 1.81/1.53    inference(avatar_component_clause,[status(thm)],[f43])).
% 1.81/1.53  thf(f61,plain,(
% 1.81/1.53    ((cS @ sK3) != $true) | (~spl5_2 | ~spl5_3)),
% 1.81/1.53    inference(trivial_inequality_removal,[status(thm)],[f60])).
% 1.81/1.53  thf(f60,plain,(
% 1.81/1.53    ((cS @ sK3) != $true) | (sK1 != sK1) | (~spl5_2 | ~spl5_3)),
% 1.81/1.53    inference(superposition,[status(thm)],[f35,f31])).
% 1.81/1.53  thf(f31,plain,(
% 1.81/1.53    (sK1 = (sK2 @ sK3)) | ~spl5_2),
% 1.81/1.53    inference(avatar_component_clause,[status(thm)],[f29])).
% 1.81/1.53  thf(f29,definition,(
% 1.81/1.53    spl5_2 <=> (sK1 = (sK2 @ sK3))),
% 1.81/1.53    introduced(definition,[new_symbols(naming,[spl5_2])],[avatar_definition])).
% 1.81/1.53  thf(f35,plain,(
% 1.81/1.53    ( ! [X4 : a] : (((sK2 @ X4) != sK1) | ((cS @ X4) != $true)) ) | ~spl5_3),
% 1.81/1.53    inference(avatar_component_clause,[status(thm)],[f34])).
% 1.81/1.53  thf(f34,definition,(
% 1.81/1.53    spl5_3 <=> ! [X4 : a] : (((cS @ X4) != $true) | ((sK2 @ X4) != sK1))),
% 1.81/1.53    introduced(definition,[new_symbols(naming,[spl5_3])],[avatar_definition])).
% 1.81/1.53  thf(f66,plain,(
% 1.81/1.53    ~spl5_7 | spl5_1 | ~spl5_5),
% 1.81/1.53    inference(avatar_split_clause,[status(thm)],[f65,f43,f25,f50])).
% 1.81/1.53  thf(f50,definition,(
% 1.81/1.53    spl5_7 <=> ($true = (cR @ sK0))),
% 1.81/1.53    introduced(definition,[new_symbols(naming,[spl5_7])],[avatar_definition])).
% 1.81/1.53  thf(f25,definition,(
% 1.81/1.53    spl5_1 <=> ((cS @ sK0) = $true)),
% 1.81/1.53    introduced(definition,[new_symbols(naming,[spl5_1])],[avatar_definition])).
% 1.81/1.53  thf(f65,plain,(
% 1.81/1.53    ($true != (cR @ sK0)) | (spl5_1 | ~spl5_5)),
% 1.81/1.53    inference(trivial_inequality_removal,[status(thm)],[f62])).
% 1.81/1.53  thf(f62,plain,(
% 1.81/1.53    ($true != $true) | ($true != (cR @ sK0)) | (spl5_1 | ~spl5_5)),
% 1.81/1.53    inference(superposition,[status(thm)],[f27,f44])).
% 1.81/1.53  thf(f27,plain,(
% 1.81/1.53    ((cS @ sK0) != $true) | spl5_1),
% 1.81/1.53    inference(avatar_component_clause,[status(thm)],[f25])).
% 1.81/1.53  thf(f59,plain,(
% 1.81/1.53    spl5_4 | spl5_7),
% 1.81/1.53    inference(avatar_split_clause,[status(thm)],[f20,f50,f38])).
% 1.81/1.53  thf(f20,plain,(
% 1.81/1.53    ($true = (cR @ sK0)) | ((cR @ sK3) = $true)),
% 1.81/1.53    inference(cnf_transformation,[status(thm)],[f13])).
% 1.81/1.53  thf(f13,plain,(
% 1.81/1.53    ((($true = (cR @ sK0)) & ((cS @ sK0) != $true)) | (((sK1 = (sK2 @ sK3)) & ((cR @ sK3) = $true)) & ! [X4 : a] : (((cS @ X4) != $true) | ((sK2 @ X4) != sK1)))) & (! [X5 : a] : (((cR @ X5) != $true) | ((cS @ X5) = $true)) | ! [X6 : a,X7 : a > a] : (! [X8 : a] : (((X7 @ X8) != X6) | ((cR @ X8) != $true)) | (($true = (cS @ (sK4 @ X7 @ X6))) & ((X7 @ (sK4 @ X7 @ X6)) = X6))))),
% 1.81/1.53    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0,sK1,sK2,sK3,sK4])],[f8,f12,f11,f10,f9])).
% 1.81/1.53  thf(f9,plain,(
% 1.81/1.53    ? [X0 : a] : (((cR @ X0) = $true) & ((cS @ X0) != $true)) => (($true = (cR @ sK0)) & ((cS @ sK0) != $true))),
% 1.81/1.53    introduced(definition,[],[choice_axiom])).
% 1.81/1.53  thf(f10,plain,(
% 1.81/1.53    ? [X1 : a,X2 : a > a] : (? [X3 : a] : (((X2 @ X3) = X1) & ($true = (cR @ X3))) & ! [X4 : a] : (((cS @ X4) != $true) | ((X2 @ X4) != X1))) => (? [X3 : a] : ((sK1 = (sK2 @ X3)) & ($true = (cR @ X3))) & ! [X4 : a] : (((cS @ X4) != $true) | ((sK2 @ X4) != sK1)))),
% 1.81/1.53    introduced(definition,[],[choice_axiom])).
% 1.81/1.53  thf(f11,plain,(
% 1.81/1.53    ? [X3 : a] : ((sK1 = (sK2 @ X3)) & ($true = (cR @ X3))) => ((sK1 = (sK2 @ sK3)) & ((cR @ sK3) = $true))),
% 1.81/1.53    introduced(definition,[],[choice_axiom])).
% 1.81/1.53  thf(f12,plain,(
% 1.81/1.53    ! [X6 : a,X7 : a > a] : (? [X9 : a] : (($true = (cS @ X9)) & ((X7 @ X9) = X6)) => (($true = (cS @ (sK4 @ X7 @ X6))) & ((X7 @ (sK4 @ X7 @ X6)) = X6)))),
% 1.81/1.53    introduced(definition,[],[choice_axiom])).
% 1.81/1.53  thf(f8,plain,(
% 1.81/1.53    (? [X0 : a] : (((cR @ X0) = $true) & ((cS @ X0) != $true)) | ? [X1 : a,X2 : a > a] : (? [X3 : a] : (((X2 @ X3) = X1) & ($true = (cR @ X3))) & ! [X4 : a] : (((cS @ X4) != $true) | ((X2 @ X4) != X1)))) & (! [X5 : a] : (((cR @ X5) != $true) | ((cS @ X5) = $true)) | ! [X6 : a,X7 : a > a] : (! [X8 : a] : (((X7 @ X8) != X6) | ((cR @ X8) != $true)) | ? [X9 : a] : (($true = (cS @ X9)) & ((X7 @ X9) = X6))))),
% 1.81/1.53    inference(rectify,[status(thm)],[f7])).
% 1.81/1.53  thf(f7,plain,(
% 1.81/1.53    (? [X4 : a] : (((cR @ X4) = $true) & ((cS @ X4) != $true)) | ? [X0 : a,X1 : a > a] : (? [X2 : a] : (((X1 @ X2) = X0) & ((cR @ X2) = $true)) & ! [X3 : a] : (((cS @ X3) != $true) | ((X1 @ X3) != X0)))) & (! [X4 : a] : (((cR @ X4) != $true) | ((cS @ X4) = $true)) | ! [X0 : a,X1 : a > a] : (! [X2 : a] : (((X1 @ X2) != X0) | ((cR @ X2) != $true)) | ? [X3 : a] : (((cS @ X3) = $true) & ((X1 @ X3) = X0))))),
% 1.81/1.53    inference(nnf_transformation,[status(thm)],[f6])).
% 1.81/1.53  thf(f6,plain,(
% 1.81/1.53    ! [X0 : a,X1 : a > a] : (! [X2 : a] : (((X1 @ X2) != X0) | ((cR @ X2) != $true)) | ? [X3 : a] : (((cS @ X3) = $true) & ((X1 @ X3) = X0))) <~> ! [X4 : a] : (((cR @ X4) != $true) | ((cS @ X4) = $true))),
% 1.81/1.53    inference(ennf_transformation,[status(thm)],[f5])).
% 1.81/1.53  thf(f5,plain,(
% 1.81/1.53    ~(! [X1 : a > a,X0 : a] : (? [X2 : a] : (((X1 @ X2) = X0) & ((cR @ X2) = $true)) => ? [X3 : a] : (((cS @ X3) = $true) & ((X1 @ X3) = X0))) <=> ! [X4 : a] : (((cR @ X4) = $true) => ((cS @ X4) = $true)))),
% 1.81/1.53    inference(fool_elimination,[status(thm)],[f4])).
% 1.81/1.53  thf(f4,plain,(
% 1.81/1.53    ~(! [X0 : a,X1 : a > a] : (? [X2 : a] : (((X1 @ X2) = X0) & (cR @ X2)) => ? [X3 : a] : (((X1 @ X3) = X0) & (cS @ X3))) <=> ! [X4 : a] : ((cR @ X4) => (cS @ X4)))),
% 1.81/1.53    inference(rectify,[status(thm)],[f2])).
% 1.81/1.53  thf(f2,negated_conjecture,(
% 1.81/1.53    ~(! [X0 : a,X1 : a > a] : (? [X2 : a] : (((X1 @ X2) = X0) & (cR @ X2)) => ? [X2 : a] : (((X1 @ X2) = X0) & (cS @ X2))) <=> ! [X0 : a] : ((cR @ X0) => (cS @ X0)))),
% 1.81/1.53    inference(negated_conjecture,[status(cth)],[f1])).
% 1.81/1.53  thf(f1,conjecture,(
% 1.81/1.53    ! [X0 : a,X1 : a > a] : (? [X2 : a] : (((X1 @ X2) = X0) & (cR @ X2)) => ? [X2 : a] : (((X1 @ X2) = X0) & (cS @ X2))) <=> ! [X0 : a] : ((cR @ X0) => (cS @ X0))),
% 1.81/1.53    file('/export/starexec/sandbox/tmp/tmp.VbzzVtDKM4/DTF2THF_6797.p',cTHM30_pme)).
% 1.81/1.53  thf(f58,plain,(
% 1.81/1.53    spl5_2 | spl5_7),
% 1.81/1.53    inference(avatar_split_clause,[status(thm)],[f21,f50,f29])).
% 1.81/1.53  thf(f21,plain,(
% 1.81/1.53    (sK1 = (sK2 @ sK3)) | ($true = (cR @ sK0))),
% 1.81/1.53    inference(cnf_transformation,[status(thm)],[f13])).
% 1.81/1.53  thf(f57,plain,(
% 1.81/1.53    spl5_8 | spl5_5),
% 1.81/1.53    inference(avatar_split_clause,[status(thm)],[f22,f43,f55])).
% 1.81/1.53  thf(f22,plain,(
% 1.81/1.53    ( ! [X8 : a,X7 : a > a,X5 : a] : (((cS @ X5) = $true) | ((cR @ X8) != $true) | ((cS @ (sK4 @ X7 @ (X7 @ X8))) = $true) | ((cR @ X5) != $true)) )),
% 1.81/1.53    inference(equality_resolution,[status(thm)],[f15])).
% 1.81/1.53  thf(f15,plain,(
% 1.81/1.53    ( ! [X8 : a,X6 : a,X7 : a > a,X5 : a] : (((cR @ X5) != $true) | ((cS @ X5) = $true) | ((X7 @ X8) != X6) | ((cR @ X8) != $true) | ($true = (cS @ (sK4 @ X7 @ X6)))) )),
% 1.81/1.53    inference(cnf_transformation,[status(thm)],[f13])).
% 1.81/1.53  thf(f53,plain,(
% 1.81/1.53    spl5_3 | spl5_7),
% 1.81/1.53    inference(avatar_split_clause,[status(thm)],[f19,f50,f34])).
% 1.81/1.53  thf(f19,plain,(
% 1.81/1.53    ( ! [X4 : a] : (((cS @ X4) != $true) | ((sK2 @ X4) != sK1) | ($true = (cR @ sK0))) )),
% 1.81/1.53    inference(cnf_transformation,[status(thm)],[f13])).
% 1.81/1.53  thf(f48,plain,(
% 1.81/1.53    spl5_5 | spl5_6),
% 1.81/1.53    inference(avatar_split_clause,[status(thm)],[f23,f46,f43])).
% 1.81/1.53  thf(f23,plain,(
% 1.81/1.53    ( ! [X8 : a,X7 : a > a,X5 : a] : (((X7 @ (sK4 @ X7 @ (X7 @ X8))) = (X7 @ X8)) | ((cS @ X5) = $true) | ((cR @ X8) != $true) | ((cR @ X5) != $true)) )),
% 1.81/1.53    inference(equality_resolution,[status(thm)],[f14])).
% 1.81/1.53  thf(f14,plain,(
% 1.81/1.53    ( ! [X8 : a,X6 : a,X7 : a > a,X5 : a] : (((cR @ X5) != $true) | ((cS @ X5) = $true) | ((X7 @ X8) != X6) | ((cR @ X8) != $true) | ((X7 @ (sK4 @ X7 @ X6)) = X6)) )),
% 1.81/1.53    inference(cnf_transformation,[status(thm)],[f13])).
% 1.81/1.53  thf(f41,plain,(
% 1.81/1.53    spl5_4 | ~spl5_1),
% 1.81/1.53    inference(avatar_split_clause,[status(thm)],[f17,f25,f38])).
% 1.81/1.53  thf(f17,plain,(
% 1.81/1.53    ((cR @ sK3) = $true) | ((cS @ sK0) != $true)),
% 1.81/1.53    inference(cnf_transformation,[status(thm)],[f13])).
% 1.81/1.53  thf(f36,plain,(
% 1.81/1.53    ~spl5_1 | spl5_3),
% 1.81/1.53    inference(avatar_split_clause,[status(thm)],[f16,f34,f25])).
% 1.81/1.53  thf(f16,plain,(
% 1.81/1.53    ( ! [X4 : a] : (((cS @ sK0) != $true) | ((cS @ X4) != $true) | ((sK2 @ X4) != sK1)) )),
% 1.81/1.53    inference(cnf_transformation,[status(thm)],[f13])).
% 1.81/1.53  thf(f32,plain,(
% 1.81/1.53    ~spl5_1 | spl5_2),
% 1.81/1.53    inference(avatar_split_clause,[status(thm)],[f18,f29,f25])).
% 1.81/1.53  thf(f18,plain,(
% 1.81/1.53    ((cS @ sK0) != $true) | (sK1 = (sK2 @ sK3))),
% 1.81/1.53    inference(cnf_transformation,[status(thm)],[f13])).
% 1.81/1.53  % SZS output end Proof for DTF2THF_6797
% 1.81/1.53  % (6925)------------------------------
% 1.81/1.53  % (6925)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.81/1.53  % (6925)Termination reason: Refutation
% 1.81/1.53  
% 1.81/1.53  % (6925)Memory used [KB]: 5628
% 1.81/1.53  % (6925)Time elapsed: 0.007 s
% 1.81/1.53  % (6925)Instructions burned: 8 (million)
% 1.81/1.53  % (6925)------------------------------
% 1.81/1.53  % (6925)------------------------------
% 1.81/1.53  % (6924)Success in time 0.02 s
%------------------------------------------------------------------------------