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DT2H2X---1.9.5.THM-Ref.s

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%------------------------------------------------------------------------------
% File     : DT2H2X---1.9.5
% Problem  : SEU967^5 : 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 : n014.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 09:37:51 AM UTC 2026

% Result   : Theorem 1.36s 1.15s
% Output   : Refutation 1.36s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   13
%            Number of leaves      :    3
% Syntax   : Number of formulae    :   16 (   5 unt;   0 typ;   0 def)
%            Number of atoms       :  148 (  38 equ;   0 cnn)
%            Maximal formula atoms :    5 (   9 avg)
%            Number of connectives :  540 (  27   ~;   9   |;  27   &; 426   @)
%                                         (   0 <=>;   2  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   19 (   7 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :  112 ( 112   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   11 (   7 usr;   3 con; 0-2 aty)
%                                         (   0  !!;  49  ??;   0 @@+;   0 @@-)
%            Number of variables   :  193 ( 132   ^;  16   !;  45   ?; 193   :)

% Comments : 
%------------------------------------------------------------------------------
thf(func_def_0,type,
    cY_0: ( ( $i > $i ) > $o ) > $i ).

thf(func_def_1,type,
    cG_0: ( ( $i > $i ) > $o ) > $i > $i ).

thf(func_def_2,type,
    cP_0: $i > $o ).

thf(func_def_3,type,
    cH_0: ( ( $i > $i ) > $o ) > $i > $i ).

thf(func_def_11,type,
    sK0: ( ( $i > $i ) > $i > $o ) > $i ).

thf(func_def_12,type,
    sK1: ( ( $i > $i ) > $i > $o ) > $i ).

thf(func_def_15,type,
    ph3: 
      !>[X0: $tType] : X0 ).

thf(f28,plain,
    $false,
    inference(trivial_inequality_removal,[status(thm)],[f27]) ).

thf(f27,plain,
    $true = $false,
    inference(beta_eta_normalization,[status(thm)],[f22]) ).

thf(f22,plain,
    ( ( ^ [Y0: $i > $i,Y1: $i] : $false
      @ ( cG_0
        @ ^ [Y0: $i > $i] :
            ( ?? @ $i
            @ ( ^ [Y1: $i > $i,Y2: $i] : $false
              @ Y0 ) ) )
      @ ( sK0
        @ ^ [Y0: $i > $i,Y1: $i] : $false ) )
    = $true ),
    inference(primitive_instantiation,[status(thm)],[f18]) ).

thf(f18,plain,
    ! [X0: ( $i > $i ) > $i > $o] :
      ( ( X0
        @ ( cG_0
          @ ^ [Y0: $i > $i] : ( ?? @ $i @ ( X0 @ Y0 ) ) )
        @ ( sK0 @ X0 ) )
      = $true ),
    inference(beta_eta_normalization,[status(thm)],[f16]) ).

thf(f16,plain,
    ! [X0: ( $i > $i ) > $i > $o] :
      ( ( X0
        @ ( cG_0
          @ ^ [Y0: $i > $i] :
              ( ?? @ $i
              @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) )
        @ ( sK0 @ X0 ) )
      = $true ),
    inference(cnf_transformation,[status(thm)],[f12]) ).

thf(f12,plain,
    ! [X0: ( $i > $i ) > $i > $o] :
      ( ( ( X0
          @ ( cG_0
            @ ^ [Y0: $i > $i] :
                ( ?? @ $i
                @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) )
          @ ( sK0 @ X0 ) )
        = $true )
      & ( ! [X2: $i] :
            ( ( X0
              @ ^ [Y0: $i] :
                  ( cG_0
                  @ ^ [Y1: $i > $i] :
                      ( ?? @ $i
                      @ ^ [Y2: $i] : ( X0 @ Y1 @ Y2 ) )
                  @ ( cH_0
                    @ ^ [Y1: $i > $i] :
                        ( ?? @ $i
                        @ ^ [Y2: $i] : ( X0 @ Y1 @ Y2 ) )
                    @ Y0 ) )
              @ X2 )
           != $true )
        | ( ( $true
            = ( cP_0
              @ ( cY_0
                @ ^ [Y0: $i > $i] :
                    ( ?? @ $i
                    @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) ) ) )
          & ( ( cP_0
              @ ( cG_0
                @ ^ [Y0: $i > $i] :
                    ( ?? @ $i
                    @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) )
                @ ( cY_0
                  @ ^ [Y0: $i > $i] :
                      ( ?? @ $i
                      @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) ) ) )
           != $true ) ) )
      & ( ( X0
          @ ( cH_0
            @ ^ [Y0: $i > $i] :
                ( ?? @ $i
                @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) )
          @ ( sK1 @ X0 ) )
        = $true ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0,sK1])],[f9,f11,f10]) ).

thf(f10,plain,
    ! [X0: ( $i > $i ) > $i > $o] :
      ( ? [X1: $i] :
          ( ( X0
            @ ( cG_0
              @ ^ [Y0: $i > $i] :
                  ( ?? @ $i
                  @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) )
            @ X1 )
          = $true )
     => ( ( X0
          @ ( cG_0
            @ ^ [Y0: $i > $i] :
                ( ?? @ $i
                @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) )
          @ ( sK0 @ X0 ) )
        = $true ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f11,plain,
    ! [X0: ( $i > $i ) > $i > $o] :
      ( ? [X3: $i] :
          ( ( X0
            @ ( cH_0
              @ ^ [Y0: $i > $i] :
                  ( ?? @ $i
                  @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) )
            @ X3 )
          = $true )
     => ( ( X0
          @ ( cH_0
            @ ^ [Y0: $i > $i] :
                ( ?? @ $i
                @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) )
          @ ( sK1 @ X0 ) )
        = $true ) ),
    introduced(definition,[],[choice_axiom]) ).

thf(f9,plain,
    ! [X0: ( $i > $i ) > $i > $o] :
      ( ? [X1: $i] :
          ( ( X0
            @ ( cG_0
              @ ^ [Y0: $i > $i] :
                  ( ?? @ $i
                  @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) )
            @ X1 )
          = $true )
      & ( ! [X2: $i] :
            ( ( X0
              @ ^ [Y0: $i] :
                  ( cG_0
                  @ ^ [Y1: $i > $i] :
                      ( ?? @ $i
                      @ ^ [Y2: $i] : ( X0 @ Y1 @ Y2 ) )
                  @ ( cH_0
                    @ ^ [Y1: $i > $i] :
                        ( ?? @ $i
                        @ ^ [Y2: $i] : ( X0 @ Y1 @ Y2 ) )
                    @ Y0 ) )
              @ X2 )
           != $true )
        | ( ( $true
            = ( cP_0
              @ ( cY_0
                @ ^ [Y0: $i > $i] :
                    ( ?? @ $i
                    @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) ) ) )
          & ( ( cP_0
              @ ( cG_0
                @ ^ [Y0: $i > $i] :
                    ( ?? @ $i
                    @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) )
                @ ( cY_0
                  @ ^ [Y0: $i > $i] :
                      ( ?? @ $i
                      @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) ) ) )
           != $true ) ) )
      & ? [X3: $i] :
          ( ( X0
            @ ( cH_0
              @ ^ [Y0: $i > $i] :
                  ( ?? @ $i
                  @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) )
            @ X3 )
          = $true ) ),
    inference(rectify,[status(thm)],[f8]) ).

thf(f8,plain,
    ! [X0: ( $i > $i ) > $i > $o] :
      ( ? [X2: $i] :
          ( ( X0
            @ ( cG_0
              @ ^ [Y0: $i > $i] :
                  ( ?? @ $i
                  @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) )
            @ X2 )
          = $true )
      & ( ! [X3: $i] :
            ( ( X0
              @ ^ [Y0: $i] :
                  ( cG_0
                  @ ^ [Y1: $i > $i] :
                      ( ?? @ $i
                      @ ^ [Y2: $i] : ( X0 @ Y1 @ Y2 ) )
                  @ ( cH_0
                    @ ^ [Y1: $i > $i] :
                        ( ?? @ $i
                        @ ^ [Y2: $i] : ( X0 @ Y1 @ Y2 ) )
                    @ Y0 ) )
              @ X3 )
           != $true )
        | ( ( $true
            = ( cP_0
              @ ( cY_0
                @ ^ [Y0: $i > $i] :
                    ( ?? @ $i
                    @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) ) ) )
          & ( ( cP_0
              @ ( cG_0
                @ ^ [Y0: $i > $i] :
                    ( ?? @ $i
                    @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) )
                @ ( cY_0
                  @ ^ [Y0: $i > $i] :
                      ( ?? @ $i
                      @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) ) ) )
           != $true ) ) )
      & ? [X1: $i] :
          ( $true
          = ( X0
            @ ( cH_0
              @ ^ [Y0: $i > $i] :
                  ( ?? @ $i
                  @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) )
            @ X1 ) ) ),
    inference(ennf_transformation,[status(thm)],[f7]) ).

thf(f7,plain,
    ! [X0: ( $i > $i ) > $i > $o] :
      ( ( ( ( $true
            = ( cP_0
              @ ( cY_0
                @ ^ [Y0: $i > $i] :
                    ( ?? @ $i
                    @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) ) ) )
          & ( ( cP_0
              @ ( cG_0
                @ ^ [Y0: $i > $i] :
                    ( ?? @ $i
                    @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) )
                @ ( cY_0
                  @ ^ [Y0: $i > $i] :
                      ( ?? @ $i
                      @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) ) ) )
           != $true ) )
        | ~ ? [X3: $i] :
              ( ( X0
                @ ^ [Y0: $i] :
                    ( cG_0
                    @ ^ [Y1: $i > $i] :
                        ( ?? @ $i
                        @ ^ [Y2: $i] : ( X0 @ Y1 @ Y2 ) )
                    @ ( cH_0
                      @ ^ [Y1: $i > $i] :
                          ( ?? @ $i
                          @ ^ [Y2: $i] : ( X0 @ Y1 @ Y2 ) )
                      @ Y0 ) )
                @ X3 )
              = $true ) )
      & ? [X1: $i] :
          ( $true
          = ( X0
            @ ( cH_0
              @ ^ [Y0: $i > $i] :
                  ( ?? @ $i
                  @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) )
            @ X1 ) )
      & ? [X2: $i] :
          ( ( X0
            @ ( cG_0
              @ ^ [Y0: $i > $i] :
                  ( ?? @ $i
                  @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) )
            @ X2 )
          = $true ) ),
    inference(flattening,[status(thm)],[f6]) ).

thf(f6,plain,
    ~ ~ ! [X0: ( $i > $i ) > $i > $o] :
          ( ? [X1: $i] :
              ( $true
              = ( X0
                @ ( cH_0
                  @ ^ [Y0: $i > $i] :
                      ( ?? @ $i
                      @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) )
                @ X1 ) )
          & ? [X2: $i] :
              ( ( X0
                @ ( cG_0
                  @ ^ [Y0: $i > $i] :
                      ( ?? @ $i
                      @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) )
                @ X2 )
              = $true )
          & ( ( ( $true
                = ( cP_0
                  @ ( cY_0
                    @ ^ [Y0: $i > $i] :
                        ( ?? @ $i
                        @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) ) ) )
              & ( ( cP_0
                  @ ( cG_0
                    @ ^ [Y0: $i > $i] :
                        ( ?? @ $i
                        @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) )
                    @ ( cY_0
                      @ ^ [Y0: $i > $i] :
                          ( ?? @ $i
                          @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) ) ) )
               != $true ) )
            | ~ ? [X3: $i] :
                  ( ( X0
                    @ ^ [Y0: $i] :
                        ( cG_0
                        @ ^ [Y1: $i > $i] :
                            ( ?? @ $i
                            @ ^ [Y2: $i] : ( X0 @ Y1 @ Y2 ) )
                        @ ( cH_0
                          @ ^ [Y1: $i > $i] :
                              ( ?? @ $i
                              @ ^ [Y2: $i] : ( X0 @ Y1 @ Y2 ) )
                          @ Y0 ) )
                    @ X3 )
                  = $true ) ) ),
    inference(rectify,[status(thm)],[f5]) ).

thf(f5,plain,
    ~ ~ ! [X0: ( $i > $i ) > $i > $o] :
          ( ? [X1: $i] :
              ( $true
              = ( X0
                @ ( cH_0
                  @ ^ [Y0: $i > $i] :
                      ( ?? @ $i
                      @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) )
                @ X1 ) )
          & ? [X4: $i] :
              ( $true
              = ( X0
                @ ( cG_0
                  @ ^ [Y0: $i > $i] :
                      ( ?? @ $i
                      @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) )
                @ X4 ) )
          & ( ( ( $true
                = ( cP_0
                  @ ( cY_0
                    @ ^ [Y0: $i > $i] :
                        ( ?? @ $i
                        @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) ) ) )
              & ( ( cP_0
                  @ ( cG_0
                    @ ^ [Y0: $i > $i] :
                        ( ?? @ $i
                        @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) )
                    @ ( cY_0
                      @ ^ [Y0: $i > $i] :
                          ( ?? @ $i
                          @ ^ [Y1: $i] : ( X0 @ Y0 @ Y1 ) ) ) ) )
               != $true ) )
            | ~ ? [X13: $i] :
                  ( $true
                  = ( X0
                    @ ^ [Y0: $i] :
                        ( cG_0
                        @ ^ [Y1: $i > $i] :
                            ( ?? @ $i
                            @ ^ [Y2: $i] : ( X0 @ Y1 @ Y2 ) )
                        @ ( cH_0
                          @ ^ [Y1: $i > $i] :
                              ( ?? @ $i
                              @ ^ [Y2: $i] : ( X0 @ Y1 @ Y2 ) )
                          @ Y0 ) )
                    @ X13 ) ) ) ),
    inference(fool_elimination,[status(thm)],[f4]) ).

thf(f4,plain,
    ~ ~ ! [X0: ( $i > $i ) > $i > $o] :
          ( ? [X1: $i] :
              ( X0
              @ ( cH_0
                @ ^ [X2: $i > $i] :
                  ? [X3: $i] : ( X0 @ X2 @ X3 ) )
              @ X1 )
          & ? [X4: $i] :
              ( X0
              @ ( cG_0
                @ ^ [X5: $i > $i] :
                  ? [X6: $i] : ( X0 @ X5 @ X6 ) )
              @ X4 )
          & ( ( ( cP_0
                @ ( cY_0
                  @ ^ [X7: $i > $i] :
                    ? [X8: $i] : ( X0 @ X7 @ X8 ) ) )
              & ~ ( cP_0
                  @ ( cG_0
                    @ ^ [X9: $i > $i] :
                      ? [X10: $i] : ( X0 @ X9 @ X10 )
                    @ ( cY_0
                      @ ^ [X11: $i > $i] :
                        ? [X12: $i] : ( X0 @ X11 @ X12 ) ) ) ) )
            | ~ ? [X13: $i] :
                  ( X0
                  @ ^ [X14: $i] :
                      ( cG_0
                      @ ^ [X15: $i > $i] :
                        ? [X16: $i] : ( X0 @ X15 @ X16 )
                      @ ( cH_0
                        @ ^ [X17: $i > $i] :
                          ? [X18: $i] : ( X0 @ X17 @ X18 )
                        @ X14 ) )
                  @ X13 ) ) ),
    inference(rectify,[status(thm)],[f2]) ).

thf(f2,negated_conjecture,
    ~ ~ ! [X0: ( $i > $i ) > $i > $o] :
          ( ? [X1: $i] :
              ( X0
              @ ( cH_0
                @ ^ [X2: $i > $i] :
                  ? [X3: $i] : ( X0 @ X2 @ X3 ) )
              @ X1 )
          & ? [X1: $i] :
              ( X0
              @ ( cG_0
                @ ^ [X2: $i > $i] :
                  ? [X3: $i] : ( X0 @ X2 @ X3 ) )
              @ X1 )
          & ( ( ( cP_0
                @ ( cY_0
                  @ ^ [X2: $i > $i] :
                    ? [X1: $i] : ( X0 @ X2 @ X1 ) ) )
              & ~ ( cP_0
                  @ ( cG_0
                    @ ^ [X2: $i > $i] :
                      ? [X1: $i] : ( X0 @ X2 @ X1 )
                    @ ( cY_0
                      @ ^ [X2: $i > $i] :
                        ? [X1: $i] : ( X0 @ X2 @ X1 ) ) ) ) )
            | ~ ? [X1: $i] :
                  ( X0
                  @ ^ [X4: $i] :
                      ( cG_0
                      @ ^ [X2: $i > $i] :
                        ? [X3: $i] : ( X0 @ X2 @ X3 )
                      @ ( cH_0
                        @ ^ [X2: $i > $i] :
                          ? [X3: $i] : ( X0 @ X2 @ X3 )
                        @ X4 ) )
                  @ X1 ) ) ),
    inference(negated_conjecture,[status(cth)],[f1]) ).

thf(f1,conjecture,
    ~ ! [X0: ( $i > $i ) > $i > $o] :
        ( ? [X1: $i] :
            ( X0
            @ ( cH_0
              @ ^ [X2: $i > $i] :
                ? [X3: $i] : ( X0 @ X2 @ X3 ) )
            @ X1 )
        & ? [X1: $i] :
            ( X0
            @ ( cG_0
              @ ^ [X2: $i > $i] :
                ? [X3: $i] : ( X0 @ X2 @ X3 ) )
            @ X1 )
        & ( ( ( cP_0
              @ ( cY_0
                @ ^ [X2: $i > $i] :
                  ? [X1: $i] : ( X0 @ X2 @ X1 ) ) )
            & ~ ( cP_0
                @ ( cG_0
                  @ ^ [X2: $i > $i] :
                    ? [X1: $i] : ( X0 @ X2 @ X1 )
                  @ ( cY_0
                    @ ^ [X2: $i > $i] :
                      ? [X1: $i] : ( X0 @ X2 @ X1 ) ) ) ) )
          | ~ ? [X1: $i] :
                ( X0
                @ ^ [X4: $i] :
                    ( cG_0
                    @ ^ [X2: $i > $i] :
                      ? [X3: $i] : ( X0 @ X2 @ X3 )
                    @ ( cH_0
                      @ ^ [X2: $i > $i] :
                        ? [X3: $i] : ( X0 @ X2 @ X3 )
                      @ X4 ) )
                @ X1 ) ) ),
    file('/export/starexec/sandbox/tmp/tmp.JGnLQFDlYa/DTF2THF_26218.p',cBUGWFFA_pme) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.10  % Problem  : SEU967^5 : TPTP v9.2.1. Released v4.0.0.
% 0.00/0.11  % Command  : /export/starexec/sandbox/solver/bin/run_DT2H2X /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 0.13/0.31  % Computer : n014.cluster.edu
% 0.13/0.31  % Model    : x86_64 x86_64
% 0.13/0.31  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.31  % Memory   : 8042.1875MB
% 0.13/0.31  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.31  % CPULimit : 300
% 0.13/0.31  % WCLimit  : 300
% 0.13/0.31  % DateTime : Tue Feb 24 12:37:57 EST 2026
% 0.13/0.31  % CPUTime  : 
% 0.13/0.31  Running /export/starexec/sandbox/solver/bin/run_DT2H2X /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 0.19/0.39  ---- Original DTF file ---
% 0.19/0.40  thf(spec,logic,$$dhol).
% 0.19/0.40  %------------------------------------------------------------------------------
% 0.19/0.40  % File     : SEU967^5 : TPTP v9.2.1. Released v4.0.0.
% 0.19/0.40  % Domain   : Set Theory (Functions)
% 0.19/0.40  % Problem  : TPS problem from FUNCTION-THMS
% 0.19/0.40  % Version  : Especial.
% 0.19/0.40  % English  :
% 0.19/0.40  
% 0.19/0.40  % Refs     : [Bro09] Brown (2009), Email to Geoff Sutcliffe
% 0.19/0.40  % Source   : [Bro09]
% 0.19/0.40  % Names    : tps_1061 [Bro09]
% 0.19/0.40  
% 0.19/0.40  % Status   : Theorem
% 0.19/0.40  % Rating   : 0.17 v9.1.0, 0.12 v9.0.0, 0.17 v8.2.0, 0.18 v8.1.0, 0.17 v7.4.0, 0.11 v7.3.0, 0.20 v7.2.0, 0.12 v7.1.0, 0.14 v7.0.0, 0.12 v6.4.0, 0.14 v6.3.0, 0.17 v6.2.0, 0.33 v6.1.0, 0.17 v6.0.0, 0.00 v5.4.0, 0.25 v5.3.0, 0.50 v5.2.0, 0.25 v5.0.0, 0.00 v4.0.0
% 0.19/0.40  % Syntax   : Number of formulae    :    5 (   0 unt;   4 typ;   0 def)
% 0.19/0.40  %            Number of atoms       :    2 (   0 equ;   0 cnn)
% 0.19/0.40  %            Maximal formula atoms :    2 (   2 avg)
% 0.19/0.40  %            Number of connectives :   39 (   3   ~;   1   |;   3   &;  32   @)
% 0.19/0.40  %                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
% 0.19/0.40  %            Maximal formula depth :   18 (  18 avg)
% 0.19/0.40  %            Number of types       :    2 (   0 usr)
% 0.19/0.40  %            Number of type conns  :   22 (  22   >;   0   *;   0   +;   0  <<)
% 0.19/0.40  %            Number of symbols     :    4 (   4 usr;   0 con; 1-2 aty)
% 0.19/0.40  %            Number of variables   :   19 (   8   ^;   1   !;  10   ?;  19   :)
% 0.19/0.40  % SPC      : TH0_THM_NEQ_NAR
% 0.19/0.40  
% 0.19/0.40  % Comments : This problem is from the TPS library. Copyright (c) 2009 The TPS
% 0.19/0.40  %            project in the Department of Mathematical Sciences at Carnegie
% 0.19/0.40  %            Mellon University. Distributed under the Creative Commons copyleft
% 0.19/0.40  %            license: http://creativecommons.org/licenses/by-sa/3.0/
% 0.19/0.40  %------------------------------------------------------------------------------
% 0.19/0.40  thf(cY_0,type,
% 0.19/0.40      cY_0: ( ( $i > $i ) > $o ) > $i ).
% 0.19/0.40  
% 0.19/0.40  thf(cG_0,type,
% 0.19/0.40      cG_0: ( ( $i > $i ) > $o ) > $i > $i ).
% 0.19/0.40  
% 0.19/0.40  thf(cP_0,type,
% 0.19/0.40      cP_0: $i > $o ).
% 0.19/0.40  
% 0.19/0.40  thf(cH_0,type,
% 0.19/0.40      cH_0: ( ( $i > $i ) > $o ) > $i > $i ).
% 0.19/0.40  
% 0.19/0.40  thf(cBUGWFFA_pme,conjecture,
% 0.19/0.40      ~ ! [Xm_5: ( $i > $i ) > $i > $o] :
% 0.19/0.40          ( ? [Xw_2: $i] :
% 0.19/0.40              ( Xm_5
% 0.19/0.40              @ ( cG_0
% 0.19/0.40                @ ^ [Xw_1144: $i > $i] :
% 0.19/0.40                  ? [Xw_20: $i] : ( Xm_5 @ Xw_1144 @ Xw_20 ) )
% 0.19/0.40              @ Xw_2 )
% 0.19/0.40          & ? [Xw_2: $i] :
% 0.19/0.40              ( Xm_5
% 0.19/0.40              @ ( cH_0
% 0.19/0.40                @ ^ [Xw_1144: $i > $i] :
% 0.19/0.40                  ? [Xw_20: $i] : ( Xm_5 @ Xw_1144 @ Xw_20 ) )
% 0.19/0.40              @ Xw_2 )
% 0.19/0.40          & ( ~ ? [Xw_2: $i] :
% 0.19/0.40                  ( Xm_5
% 0.19/0.40                  @ ^ [Xx: $i] :
% 0.19/0.40                      ( cG_0
% 0.19/0.40                      @ ^ [Xw_1144: $i > $i] :
% 0.19/0.40                        ? [Xw_20: $i] : ( Xm_5 @ Xw_1144 @ Xw_20 )
% 0.19/0.40                      @ ( cH_0
% 0.19/0.40                        @ ^ [Xw_1144: $i > $i] :
% 0.19/0.40                          ? [Xw_20: $i] : ( Xm_5 @ Xw_1144 @ Xw_20 )
% 0.19/0.40                        @ Xx ) )
% 0.19/0.40                  @ Xw_2 )
% 0.19/0.40            | ( ( cP_0
% 0.19/0.40                @ ( cY_0
% 0.19/0.40                  @ ^ [Xw_1144: $i > $i] :
% 0.19/0.40                    ? [Xw_2: $i] : ( Xm_5 @ Xw_1144 @ Xw_2 ) ) )
% 0.19/0.40              & ~ ( cP_0
% 0.19/0.40                  @ ( cG_0
% 0.19/0.40                    @ ^ [Xw_1144: $i > $i] :
% 0.19/0.40                      ? [Xw_2: $i] : ( Xm_5 @ Xw_1144 @ Xw_2 )
% 0.19/0.40                    @ ( cY_0
% 0.19/0.40                      @ ^ [Xw_1144: $i > $i] :
% 0.19/0.40                        ? [Xw_2: $i] : ( Xm_5 @ Xw_1144 @ Xw_2 ) ) ) ) ) ) ) ).
% 0.19/0.40  
% 0.19/0.40  %------------------------------------------------------------------------------
% 0.19/0.40  ------------------------
% 1.36/1.12  ---- Embedded in THF ---
% 1.36/1.12  %%% This output was generated by embedproblem, version 1.9.5 (library version 1.9).
% 1.36/1.12  %%% Generated on Tue Feb 24 12:37:58 EST 2026
% 1.36/1.12  %%% using '$$dhol' embedding, version 1.3.0.
% 1.36/1.12  %%% Logic specification used:
% 1.36/1.12  %%% thf(spec, logic, $$dhol).
% 1.36/1.12  
% 1.36/1.12  % SZS output start ListOfTHF for /export/starexec/sandbox/tmp/tmp.JGnLQFDlYa/DTF2DTF26218.p
% See solution above
% 1.36/1.12  ------------------------
% 1.36/1.13  ---- Cleaned THF ---
% 1.36/1.13  thf(cY_0,type,
% 1.36/1.13      cY_0: ( ( $i > $i ) > $o ) > $i ).
% 1.36/1.13  
% 1.36/1.13  thf(cG_0,type,
% 1.36/1.13      cG_0: ( ( $i > $i ) > $o ) > $i > $i ).
% 1.36/1.13  
% 1.36/1.13  thf(cP_0,type,
% 1.36/1.13      cP_0: $i > $o ).
% 1.36/1.13  
% 1.36/1.13  thf(cH_0,type,
% 1.36/1.13      cH_0: ( ( $i > $i ) > $o ) > $i > $i ).
% 1.36/1.13  
% 1.36/1.13  thf(cBUGWFFA_pme,conjecture,
% 1.36/1.13      ~ ! [Xm_5: ( $i > $i ) > $i > $o] :
% 1.36/1.13          ( ? [Xw_2: $i] :
% 1.36/1.13              ( Xm_5
% 1.36/1.13              @ ( cG_0
% 1.36/1.13                @ ^ [Xw_1144: $i > $i] :
% 1.36/1.13                  ? [Xw_20: $i] : ( Xm_5 @ Xw_1144 @ Xw_20 ) )
% 1.36/1.13              @ Xw_2 )
% 1.36/1.13          & ? [Xw_2: $i] :
% 1.36/1.13              ( Xm_5
% 1.36/1.13              @ ( cH_0
% 1.36/1.13                @ ^ [Xw_1144: $i > $i] :
% 1.36/1.13                  ? [Xw_20: $i] : ( Xm_5 @ Xw_1144 @ Xw_20 ) )
% 1.36/1.13              @ Xw_2 )
% 1.36/1.13          & ( ~ ? [Xw_2: $i] :
% 1.36/1.13                  ( Xm_5
% 1.36/1.13                  @ ^ [Xx: $i] :
% 1.36/1.13                      ( cG_0
% 1.36/1.13                      @ ^ [Xw_1144: $i > $i] :
% 1.36/1.13                        ? [Xw_20: $i] : ( Xm_5 @ Xw_1144 @ Xw_20 )
% 1.36/1.13                      @ ( cH_0
% 1.36/1.13                        @ ^ [Xw_1144: $i > $i] :
% 1.36/1.13                          ? [Xw_20: $i] : ( Xm_5 @ Xw_1144 @ Xw_20 )
% 1.36/1.13                        @ Xx ) )
% 1.36/1.13                  @ Xw_2 )
% 1.36/1.13            | ( ( cP_0
% 1.36/1.13                @ ( cY_0
% 1.36/1.13                  @ ^ [Xw_1144: $i > $i] :
% 1.36/1.13                    ? [Xw_2: $i] : ( Xm_5 @ Xw_1144 @ Xw_2 ) ) )
% 1.36/1.13              & ~ ( cP_0
% 1.36/1.13                  @ ( cG_0
% 1.36/1.13                    @ ^ [Xw_1144: $i > $i] :
% 1.36/1.13                      ? [Xw_2: $i] : ( Xm_5 @ Xw_1144 @ Xw_2 )
% 1.36/1.13                    @ ( cY_0
% 1.36/1.13                      @ ^ [Xw_1144: $i > $i] :
% 1.36/1.13                        ? [Xw_2: $i] : ( Xm_5 @ Xw_1144 @ Xw_2 ) ) ) ) ) ) ) ).
% 1.36/1.13  ------------------------
% 1.36/1.14  % (26323)lrs+1002_1:8_bd=off:fd=off:hud=10:tnu=1:i=183:si=on:rtra=on_0 on DTF2THF_26218 for (3000ds/183Mi)
% 1.36/1.14  % (26323)First to succeed.
% 1.36/1.15  % (26323)Refutation found. Thanks to Tanya!
% 1.36/1.15  % SZS status Theorem for DTF2THF_26218
% 1.36/1.15  % SZS output start Proof for DTF2THF_26218
% 1.36/1.15  thf(func_def_0, type, cY_0: (($i > $i) > $o) > $i).
% 1.36/1.15  thf(func_def_1, type, cG_0: (($i > $i) > $o) > $i > $i).
% 1.36/1.15  thf(func_def_2, type, cP_0: $i > $o).
% 1.36/1.15  thf(func_def_3, type, cH_0: (($i > $i) > $o) > $i > $i).
% 1.36/1.15  thf(func_def_11, type, sK0: (($i > $i) > $i > $o) > $i).
% 1.36/1.15  thf(func_def_12, type, sK1: (($i > $i) > $i > $o) > $i).
% 1.36/1.15  thf(func_def_15, type, ph3: !>[X0: $tType]:(X0)).
% 1.36/1.15  thf(f28,plain,(
% 1.36/1.15    $false),
% 1.36/1.15    inference(trivial_inequality_removal,[status(thm)],[f27])).
% 1.36/1.15  thf(f27,plain,(
% 1.36/1.15    ($true = $false)),
% 1.36/1.15    inference(beta_eta_normalization,[status(thm)],[f22])).
% 1.36/1.15  thf(f22,plain,(
% 1.36/1.15    (((^[Y0 : $i > $i]: ((^[Y1 : $i]: ($false)))) @ (cG_0 @ (^[Y0 : $i > $i]: (?? @ $i @ ((^[Y1 : $i > $i]: ((^[Y2 : $i]: ($false)))) @ Y0)))) @ (sK0 @ (^[Y0 : $i > $i]: ((^[Y1 : $i]: ($false)))))) = $true)),
% 1.36/1.15    inference(primitive_instantiation,[status(thm)],[f18])).
% 1.36/1.15  thf(f18,plain,(
% 1.36/1.15    ( ! [X0 : ($i > $i) > $i > $o] : (((X0 @ (cG_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (X0 @ Y0)))) @ (sK0 @ X0)) = $true)) )),
% 1.36/1.15    inference(beta_eta_normalization,[status(thm)],[f16])).
% 1.36/1.15  thf(f16,plain,(
% 1.36/1.15    ( ! [X0 : ($i > $i) > $i > $o] : (((X0 @ (cG_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))) @ (sK0 @ X0)) = $true)) )),
% 1.36/1.15    inference(cnf_transformation,[status(thm)],[f12])).
% 1.36/1.15  thf(f12,plain,(
% 1.36/1.15    ! [X0 : ($i > $i) > $i > $o] : (((X0 @ (cG_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))) @ (sK0 @ X0)) = $true) & (! [X2 : $i] : ((X0 @ (^[Y0 : $i]: (cG_0 @ (^[Y1 : $i > $i]: (?? @ $i @ (^[Y2 : $i]: (X0 @ Y1 @ Y2)))) @ (cH_0 @ (^[Y1 : $i > $i]: (?? @ $i @ (^[Y2 : $i]: (X0 @ Y1 @ Y2)))) @ Y0))) @ X2) != $true) | (($true = (cP_0 @ (cY_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))))) & ((cP_0 @ (cG_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1)))) @ (cY_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))))) != $true))) & ((X0 @ (cH_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))) @ (sK1 @ X0)) = $true))),
% 1.36/1.15    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0,sK1])],[f9,f11,f10])).
% 1.36/1.15  thf(f10,plain,(
% 1.36/1.15    ! [X0 : ($i > $i) > $i > $o] : (? [X1 : $i] : ((X0 @ (cG_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))) @ X1) = $true) => ((X0 @ (cG_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))) @ (sK0 @ X0)) = $true))),
% 1.36/1.15    introduced(definition,[],[choice_axiom])).
% 1.36/1.15  thf(f11,plain,(
% 1.36/1.15    ! [X0 : ($i > $i) > $i > $o] : (? [X3 : $i] : ((X0 @ (cH_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))) @ X3) = $true) => ((X0 @ (cH_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))) @ (sK1 @ X0)) = $true))),
% 1.36/1.15    introduced(definition,[],[choice_axiom])).
% 1.36/1.15  thf(f9,plain,(
% 1.36/1.15    ! [X0 : ($i > $i) > $i > $o] : (? [X1 : $i] : ((X0 @ (cG_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))) @ X1) = $true) & (! [X2 : $i] : ((X0 @ (^[Y0 : $i]: (cG_0 @ (^[Y1 : $i > $i]: (?? @ $i @ (^[Y2 : $i]: (X0 @ Y1 @ Y2)))) @ (cH_0 @ (^[Y1 : $i > $i]: (?? @ $i @ (^[Y2 : $i]: (X0 @ Y1 @ Y2)))) @ Y0))) @ X2) != $true) | (($true = (cP_0 @ (cY_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))))) & ((cP_0 @ (cG_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1)))) @ (cY_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))))) != $true))) & ? [X3 : $i] : ((X0 @ (cH_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))) @ X3) = $true))),
% 1.36/1.15    inference(rectify,[status(thm)],[f8])).
% 1.36/1.15  thf(f8,plain,(
% 1.36/1.15    ! [X0 : ($i > $i) > $i > $o] : (? [X2 : $i] : ((X0 @ (cG_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))) @ X2) = $true) & (! [X3 : $i] : ((X0 @ (^[Y0 : $i]: (cG_0 @ (^[Y1 : $i > $i]: (?? @ $i @ (^[Y2 : $i]: (X0 @ Y1 @ Y2)))) @ (cH_0 @ (^[Y1 : $i > $i]: (?? @ $i @ (^[Y2 : $i]: (X0 @ Y1 @ Y2)))) @ Y0))) @ X3) != $true) | (($true = (cP_0 @ (cY_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))))) & ((cP_0 @ (cG_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1)))) @ (cY_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))))) != $true))) & ? [X1 : $i] : ($true = (X0 @ (cH_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))) @ X1)))),
% 1.36/1.15    inference(ennf_transformation,[status(thm)],[f7])).
% 1.36/1.15  thf(f7,plain,(
% 1.36/1.15    ! [X0 : ($i > $i) > $i > $o] : (((($true = (cP_0 @ (cY_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))))) & ((cP_0 @ (cG_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1)))) @ (cY_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))))) != $true)) | ~? [X3 : $i] : ((X0 @ (^[Y0 : $i]: (cG_0 @ (^[Y1 : $i > $i]: (?? @ $i @ (^[Y2 : $i]: (X0 @ Y1 @ Y2)))) @ (cH_0 @ (^[Y1 : $i > $i]: (?? @ $i @ (^[Y2 : $i]: (X0 @ Y1 @ Y2)))) @ Y0))) @ X3) = $true)) & ? [X1 : $i] : ($true = (X0 @ (cH_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))) @ X1)) & ? [X2 : $i] : ((X0 @ (cG_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))) @ X2) = $true))),
% 1.36/1.15    inference(flattening,[status(thm)],[f6])).
% 1.36/1.15  thf(f6,plain,(
% 1.36/1.15    ~~! [X0 : ($i > $i) > $i > $o] : (? [X1 : $i] : ($true = (X0 @ (cH_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))) @ X1)) & ? [X2 : $i] : ((X0 @ (cG_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))) @ X2) = $true) & ((($true = (cP_0 @ (cY_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))))) & ~((cP_0 @ (cG_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1)))) @ (cY_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))))) = $true)) | ~? [X3 : $i] : ((X0 @ (^[Y0 : $i]: (cG_0 @ (^[Y1 : $i > $i]: (?? @ $i @ (^[Y2 : $i]: (X0 @ Y1 @ Y2)))) @ (cH_0 @ (^[Y1 : $i > $i]: (?? @ $i @ (^[Y2 : $i]: (X0 @ Y1 @ Y2)))) @ Y0))) @ X3) = $true)))),
% 1.36/1.15    inference(rectify,[status(thm)],[f5])).
% 1.36/1.15  thf(f5,plain,(
% 1.36/1.15    ~~! [X0 : ($i > $i) > $i > $o] : (? [X1 : $i] : ($true = (X0 @ (cH_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))) @ X1)) & ? [X4 : $i] : ($true = (X0 @ (cG_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))) @ X4)) & ((($true = (cP_0 @ (cY_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))))) & ~((cP_0 @ (cG_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1)))) @ (cY_0 @ (^[Y0 : $i > $i]: (?? @ $i @ (^[Y1 : $i]: (X0 @ Y0 @ Y1))))))) = $true)) | ~? [X13 : $i] : ($true = (X0 @ (^[Y0 : $i]: (cG_0 @ (^[Y1 : $i > $i]: (?? @ $i @ (^[Y2 : $i]: (X0 @ Y1 @ Y2)))) @ (cH_0 @ (^[Y1 : $i > $i]: (?? @ $i @ (^[Y2 : $i]: (X0 @ Y1 @ Y2)))) @ Y0))) @ X13))))),
% 1.36/1.15    inference(fool_elimination,[status(thm)],[f4])).
% 1.36/1.15  thf(f4,plain,(
% 1.36/1.15    ~~! [X0 : ($i > $i) > $i > $o] : (? [X1 : $i] : (X0 @ (cH_0 @ (^[X2 : $i > $i] : (? [X3 : $i] : (X0 @ X2 @ X3)))) @ X1) & ? [X4 : $i] : (X0 @ (cG_0 @ (^[X5 : $i > $i] : (? [X6 : $i] : (X0 @ X5 @ X6)))) @ X4) & (((cP_0 @ (cY_0 @ (^[X7 : $i > $i] : (? [X8 : $i] : (X0 @ X7 @ X8))))) & ~(cP_0 @ (cG_0 @ (^[X9 : $i > $i] : (? [X10 : $i] : (X0 @ X9 @ X10))) @ (cY_0 @ (^[X11 : $i > $i] : (? [X12 : $i] : (X0 @ X11 @ X12))))))) | ~? [X13 : $i] : (X0 @ (^[X14 : $i] : (cG_0 @ (^[X15 : $i > $i] : (? [X16 : $i] : (X0 @ X15 @ X16))) @ (cH_0 @ (^[X17 : $i > $i] : (? [X18 : $i] : (X0 @ X17 @ X18))) @ X14))) @ X13)))),
% 1.36/1.15    inference(rectify,[status(thm)],[f2])).
% 1.36/1.15  thf(f2,negated_conjecture,(
% 1.36/1.15    ~~! [X0 : ($i > $i) > $i > $o] : (? [X1 : $i] : (X0 @ (cH_0 @ (^[X2 : $i > $i] : (? [X3 : $i] : (X0 @ X2 @ X3)))) @ X1) & ? [X1 : $i] : (X0 @ (cG_0 @ (^[X2 : $i > $i] : (? [X3 : $i] : (X0 @ X2 @ X3)))) @ X1) & (((cP_0 @ (cY_0 @ (^[X2 : $i > $i] : (? [X1 : $i] : (X0 @ X2 @ X1))))) & ~(cP_0 @ (cG_0 @ (^[X2 : $i > $i] : (? [X1 : $i] : (X0 @ X2 @ X1))) @ (cY_0 @ (^[X2 : $i > $i] : (? [X1 : $i] : (X0 @ X2 @ X1))))))) | ~? [X1 : $i] : (X0 @ (^[X4 : $i] : (cG_0 @ (^[X2 : $i > $i] : (? [X3 : $i] : (X0 @ X2 @ X3))) @ (cH_0 @ (^[X2 : $i > $i] : (? [X3 : $i] : (X0 @ X2 @ X3))) @ X4))) @ X1)))),
% 1.36/1.15    inference(negated_conjecture,[status(cth)],[f1])).
% 1.36/1.15  thf(f1,conjecture,(
% 1.36/1.15    ~! [X0 : ($i > $i) > $i > $o] : (? [X1 : $i] : (X0 @ (cH_0 @ (^[X2 : $i > $i] : (? [X3 : $i] : (X0 @ X2 @ X3)))) @ X1) & ? [X1 : $i] : (X0 @ (cG_0 @ (^[X2 : $i > $i] : (? [X3 : $i] : (X0 @ X2 @ X3)))) @ X1) & (((cP_0 @ (cY_0 @ (^[X2 : $i > $i] : (? [X1 : $i] : (X0 @ X2 @ X1))))) & ~(cP_0 @ (cG_0 @ (^[X2 : $i > $i] : (? [X1 : $i] : (X0 @ X2 @ X1))) @ (cY_0 @ (^[X2 : $i > $i] : (? [X1 : $i] : (X0 @ X2 @ X1))))))) | ~? [X1 : $i] : (X0 @ (^[X4 : $i] : (cG_0 @ (^[X2 : $i > $i] : (? [X3 : $i] : (X0 @ X2 @ X3))) @ (cH_0 @ (^[X2 : $i > $i] : (? [X3 : $i] : (X0 @ X2 @ X3))) @ X4))) @ X1)))),
% 1.36/1.15    file('/export/starexec/sandbox/tmp/tmp.JGnLQFDlYa/DTF2THF_26218.p',cBUGWFFA_pme)).
% 1.36/1.15  % SZS output end Proof for DTF2THF_26218
% 1.36/1.15  % (26323)------------------------------
% 1.36/1.15  % (26323)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.36/1.15  % (26323)Termination reason: Refutation
% 1.36/1.15  
% 1.36/1.15  % (26323)Memory used [KB]: 5500
% 1.36/1.15  % (26323)Time elapsed: 0.004 s
% 1.36/1.15  % (26323)Instructions burned: 4 (million)
% 1.36/1.15  % (26323)------------------------------
% 1.36/1.15  % (26323)------------------------------
% 1.36/1.15  % (26322)Success in time 0.013 s
%------------------------------------------------------------------------------