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DT2H2X---1.9.5.THM-Ref.s

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%------------------------------------------------------------------------------
% File     : DT2H2X---1.9.5
% Problem  : NUM654^1 : TPTP v9.2.1. Released v3.7.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : /export/starexec/sandbox/solver/bin/run_DT2H2X /export/starexec/sandbox/benchmark/theBenchmark.p 300

% Computer : n002.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 09:24:07 AM UTC 2026

% Result   : Theorem 1.62s 1.31s
% Output   : Refutation 1.62s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   10
%            Number of leaves      :    3
% Syntax   : Number of formulae    :   24 (   9 unt;   0 typ;   0 def)
%            Number of atoms       :   89 (  37 equ;   0 cnn)
%            Maximal formula atoms :    3 (   3 avg)
%            Number of connectives :  108 (  27   ~;   9   |;   1   &;  58   @)
%                                         (   0 <=>;  13  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    8 (   4 avg)
%            Number of types       :    2 (   1 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :    7 (   4 usr;   4 con; 0-2 aty)
%            Number of variables   :   14 (   0   ^;  14   !;   0   ?;  14   :)

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

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

thf(func_def_1,type,
    x: nat ).

thf(func_def_2,type,
    y: nat ).

thf(func_def_3,type,
    more: nat > nat > $o ).

thf(func_def_5,type,
    less: nat > nat > $o ).

thf(f32,plain,
    $false,
    inference(subsumption_resolution,[status(thm)],[f31,f25]) ).

thf(f25,plain,
    ( ( more @ x @ y )
   != $true ),
    inference(cnf_transformation,[status(thm)],[f15]) ).

thf(f15,plain,
    ( ( more @ x @ y )
   != $true ),
    inference(flattening,[status(thm)],[f8]) ).

thf(f8,plain,
    ( ( more @ x @ y )
   != $true ),
    inference(fool_elimination,[status(thm)],[f7]) ).

thf(f7,plain,
    ~ ( more @ x @ y ),
    inference(rectify,[status(thm)],[f1]) ).

thf(f1,axiom,
    ~ ( more @ x @ y ),
    file('/export/starexec/sandbox/tmp/tmp.WvXqfvsmTb/DTF2THF_1900.p',n) ).

thf(f31,plain,
    ( ( more @ x @ y )
    = $true ),
    inference(subsumption_resolution,[status(thm)],[f30,f24]) ).

thf(f24,plain,
    x != y,
    inference(cnf_transformation,[status(thm)],[f22]) ).

thf(f22,plain,
    ( ( x != y )
    & ( ( less @ x @ y )
     != $true ) ),
    inference(ennf_transformation,[status(thm)],[f17]) ).

thf(f17,plain,
    ~ ( ( ( less @ x @ y )
       != $true )
     => ( x = y ) ),
    inference(flattening,[status(thm)],[f12]) ).

thf(f12,plain,
    ~ ( ( ( less @ x @ y )
       != $true )
     => ( x = y ) ),
    inference(fool_elimination,[status(thm)],[f11]) ).

thf(f11,plain,
    ~ ( ~ ( less @ x @ y )
     => ( x = y ) ),
    inference(rectify,[status(thm)],[f5]) ).

thf(f5,negated_conjecture,
    ~ ( ~ ( less @ x @ y )
     => ( x = y ) ),
    inference(negated_conjecture,[status(cth)],[f4]) ).

thf(f4,conjecture,
    ( ~ ( less @ x @ y )
   => ( x = y ) ),
    file('/export/starexec/sandbox/tmp/tmp.WvXqfvsmTb/DTF2THF_1900.p',satz10e) ).

thf(f30,plain,
    ( ( x = y )
    | ( ( more @ x @ y )
      = $true ) ),
    inference(trivial_inequality_removal,[status(thm)],[f29]) ).

thf(f29,plain,
    ( ( ( more @ x @ y )
      = $true )
    | ( $true != $true )
    | ( x = y ) ),
    inference(superposition,[status(thm)],[f23,f26]) ).

thf(f26,plain,
    ! [X0: nat,X1: nat] :
      ( ( ( less @ X1 @ X0 )
        = $true )
      | ( ( more @ X1 @ X0 )
        = $true )
      | ( X0 = X1 ) ),
    inference(cnf_transformation,[status(thm)],[f20]) ).

thf(f20,plain,
    ! [X0: nat,X1: nat] :
      ( ( ( more @ X1 @ X0 )
        = $true )
      | ( X0 = X1 )
      | ( ( less @ X1 @ X0 )
        = $true ) ),
    inference(flattening,[status(thm)],[f19]) ).

thf(f19,plain,
    ! [X1: nat,X0: nat] :
      ( ( ( less @ X1 @ X0 )
        = $true )
      | ( ( more @ X1 @ X0 )
        = $true )
      | ( X0 = X1 ) ),
    inference(ennf_transformation,[status(thm)],[f18]) ).

thf(f18,plain,
    ! [X1: nat,X0: nat] :
      ( ( X0 != X1 )
     => ( ( ( more @ X1 @ X0 )
         != $true )
       => ( ( less @ X1 @ X0 )
          = $true ) ) ),
    inference(flattening,[status(thm)],[f14]) ).

thf(f14,plain,
    ! [X0: nat,X1: nat] :
      ( ( X0 != X1 )
     => ( ( ( more @ X1 @ X0 )
         != $true )
       => ( ( less @ X1 @ X0 )
          = $true ) ) ),
    inference(fool_elimination,[status(thm)],[f13]) ).

thf(f13,plain,
    ! [X0: nat,X1: nat] :
      ( ( X0 != X1 )
     => ( ~ ( more @ X1 @ X0 )
       => ( less @ X1 @ X0 ) ) ),
    inference(rectify,[status(thm)],[f3]) ).

thf(f3,axiom,
    ! [X2: nat,X1: nat] :
      ( ( X1 != X2 )
     => ( ~ ( more @ X1 @ X2 )
       => ( less @ X1 @ X2 ) ) ),
    file('/export/starexec/sandbox/tmp/tmp.WvXqfvsmTb/DTF2THF_1900.p',satz10a) ).

thf(f23,plain,
    ( ( less @ x @ y )
   != $true ),
    inference(cnf_transformation,[status(thm)],[f22]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem  : NUM654^1 : TPTP v9.2.1. Released v3.7.0.
% 0.11/0.13  % Command  : /export/starexec/sandbox/solver/bin/run_DT2H2X /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 0.18/0.34  % Computer : n002.cluster.edu
% 0.18/0.34  % Model    : x86_64 x86_64
% 0.18/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.18/0.34  % Memory   : 8042.1875MB
% 0.18/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.18/0.34  % CPULimit : 300
% 0.18/0.34  % WCLimit  : 300
% 0.18/0.34  % DateTime : Tue Feb 24 11:10:03 EST 2026
% 0.18/0.34  % CPUTime  : 
% 0.18/0.34  Running /export/starexec/sandbox/solver/bin/run_DT2H2X /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 0.32/0.46  ---- Original DTF file ---
% 0.32/0.47  thf(spec,logic,$$dhol).
% 0.32/0.47  %------------------------------------------------------------------------------
% 0.32/0.47  % File     : NUM654^1 : TPTP v9.2.1. Released v3.7.0.
% 0.32/0.47  % Domain   : Number Theory
% 0.32/0.47  % Problem  : Landau theorem 10e
% 0.32/0.47  % Version  : Especial.
% 0.32/0.47  % English  : ~(less x y) -> x = y
% 0.32/0.47  
% 0.32/0.47  % Refs     : [Lan30] Landau (1930), Grundlagen der Analysis
% 0.32/0.47  %          : [vBJ79] van Benthem Jutting (1979), Checking Landau's "Grundla
% 0.32/0.47  %          : [Bro09] Brown (2009), Email to Geoff Sutcliffe
% 0.32/0.47  % Source   : [Bro09]
% 0.32/0.47  % Names    : satz10e [Lan30]
% 0.32/0.47  
% 0.32/0.47  % Status   : Theorem
% 0.32/0.47  %          : Without extensionality : Theorem
% 0.32/0.47  % Rating   : 0.11 v9.1.0, 0.12 v9.0.0, 0.20 v8.2.0, 0.15 v8.1.0, 0.00 v6.0.0, 0.14 v5.5.0, 0.17 v5.4.0, 0.20 v5.3.0, 0.40 v5.2.0, 0.20 v4.1.0, 0.00 v3.7.0
% 0.32/0.47  % Syntax   : Number of formulae    :    9 (   1 unt;   5 typ;   0 def)
% 0.32/0.47  %            Number of atoms       :    6 (   2 equ;   0 cnn)
% 0.32/0.47  %            Maximal formula atoms :    3 (   1 avg)
% 0.32/0.47  %            Number of connectives :   18 (   6   ~;   0   |;   0   &;   8   @)
% 0.32/0.47  %                                         (   0 <=>;   4  =>;   0  <=;   0 <~>)
% 0.32/0.47  %            Maximal formula depth :    8 (   6 avg)
% 0.32/0.47  %            Number of types       :    2 (   1 usr)
% 0.32/0.47  %            Number of type conns  :    4 (   4   >;   0   *;   0   +;   0  <<)
% 0.32/0.47  %            Number of symbols     :    5 (   4 usr;   2 con; 0-2 aty)
% 0.32/0.47  %            Number of variables   :    3 (   0   ^;   3   !;   0   ?;   3   :)
% 0.32/0.47  % SPC      : TH0_THM_EQU_NAR
% 0.32/0.47  
% 0.32/0.47  % Comments : 
% 0.32/0.47  %------------------------------------------------------------------------------
% 0.32/0.47  thf(nat_type,type,
% 0.32/0.47      nat: $tType ).
% 0.32/0.47  
% 0.32/0.47  thf(x,type,
% 0.32/0.47      x: nat ).
% 0.32/0.47  
% 0.32/0.47  thf(y,type,
% 0.32/0.47      y: nat ).
% 0.32/0.47  
% 0.32/0.47  thf(more,type,
% 0.32/0.47      more: nat > nat > $o ).
% 0.32/0.47  
% 0.32/0.47  thf(n,axiom,
% 0.32/0.47      ~ ( more @ x @ y ) ).
% 0.32/0.47  
% 0.32/0.47  thf(less,type,
% 0.32/0.47      less: nat > nat > $o ).
% 0.32/0.47  
% 0.32/0.47  thf(et,axiom,
% 0.32/0.47      ! [Xa: $o] :
% 0.32/0.47        ( ~ ~ Xa
% 0.32/0.47       => Xa ) ).
% 0.32/0.47  
% 0.32/0.47  thf(satz10a,axiom,
% 0.32/0.47      ! [Xx: nat,Xy: nat] :
% 0.32/0.47        ( ( Xx != Xy )
% 0.32/0.47       => ( ~ ( more @ Xx @ Xy )
% 0.32/0.47         => ( less @ Xx @ Xy ) ) ) ).
% 0.32/0.47  
% 0.32/0.47  thf(satz10e,conjecture,
% 0.32/0.47      ( ~ ( less @ x @ y )
% 0.32/0.47     => ( x = y ) ) ).
% 0.32/0.47  
% 0.32/0.47  %------------------------------------------------------------------------------
% 0.32/0.47  ------------------------
% 1.48/1.27  ---- Embedded in THF ---
% 1.48/1.27  %%% This output was generated by embedproblem, version 1.9.5 (library version 1.9).
% 1.48/1.27  %%% Generated on Tue Feb 24 11:10:04 EST 2026
% 1.48/1.27  %%% using '$$dhol' embedding, version 1.3.0.
% 1.48/1.27  %%% Logic specification used:
% 1.48/1.27  %%% thf(spec, logic, $$dhol).
% 1.48/1.27  
% 1.48/1.27  % SZS output start ListOfTHF for /export/starexec/sandbox/tmp/tmp.WvXqfvsmTb/DTF2DTF1900.p
% See solution above
% 1.48/1.27  ------------------------
% 1.48/1.28  ---- Cleaned THF ---
% 1.48/1.28  thf(nat_type,type,
% 1.48/1.28      nat: $tType ).
% 1.48/1.28  
% 1.48/1.28  thf(x,type,
% 1.48/1.28      x: nat ).
% 1.48/1.28  
% 1.48/1.28  thf(y,type,
% 1.48/1.28      y: nat ).
% 1.48/1.28  
% 1.48/1.28  thf(more,type,
% 1.48/1.28      more: nat > nat > $o ).
% 1.48/1.28  
% 1.48/1.28  thf(n,axiom,
% 1.48/1.28      ~ ( more @ x @ y ) ).
% 1.48/1.28  
% 1.48/1.28  thf(less,type,
% 1.48/1.28      less: nat > nat > $o ).
% 1.48/1.28  
% 1.48/1.28  thf(et,axiom,
% 1.48/1.28      ! [Xa: $o] :
% 1.48/1.28        ( ~ ~ Xa
% 1.48/1.28       => Xa ) ).
% 1.48/1.28  
% 1.48/1.28  thf(satz10a,axiom,
% 1.48/1.28      ! [Xx: nat,Xy: nat] :
% 1.48/1.28        ( ( Xx != Xy )
% 1.48/1.28       => ( ~ ( more @ Xx @ Xy )
% 1.48/1.28         => ( less @ Xx @ Xy ) ) ) ).
% 1.48/1.28  
% 1.48/1.28  thf(satz10e,conjecture,
% 1.48/1.28      ( ~ ( less @ x @ y )
% 1.48/1.28     => ( x = y ) ) ).
% 1.48/1.28  ------------------------
% 1.62/1.30  % (2236)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_1900 for (2999ds/275Mi)
% 1.62/1.30  % (2234)lrs+10_1:1_au=on:inj=on:i=2:si=on:rtra=on_0 on DTF2THF_1900 for (2999ds/2Mi)
% 1.62/1.30  % (2236)Refutation not found, incomplete strategy
% 1.62/1.30  % (2236)------------------------------
% 1.62/1.30  % (2236)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.62/1.30  % (2236)Termination reason: Refutation not found, incomplete strategy
% 1.62/1.30  
% 1.62/1.30  
% 1.62/1.30  % (2236)Memory used [KB]: 5500
% 1.62/1.30  % (2236)Time elapsed: 0.002 s
% 1.62/1.30  % (2236)Instructions burned: 1 (million)
% 1.62/1.30  % (2236)------------------------------
% 1.62/1.30  % (2236)------------------------------
% 1.62/1.30  % (2234)Instruction limit reached!
% 1.62/1.30  % (2234)------------------------------
% 1.62/1.30  % (2234)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.62/1.30  % (2234)Termination reason: Unknown
% 1.62/1.30  % (2234)Termination phase: Saturation
% 1.62/1.30  
% 1.62/1.30  % (2234)Memory used [KB]: 5500
% 1.62/1.30  % (2234)Time elapsed: 0.002 s
% 1.62/1.30  % (2234)Instructions burned: 2 (million)
% 1.62/1.30  % (2234)------------------------------
% 1.62/1.30  % (2234)------------------------------
% 1.62/1.30  % (2232)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_1900 for (2999ds/4Mi)
% 1.62/1.30  % (2231)lrs+1002_1:8_bd=off:fd=off:hud=10:tnu=1:i=183:si=on:rtra=on_0 on DTF2THF_1900 for (2999ds/183Mi)
% 1.62/1.31  % (2233)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_1900 for (2999ds/27Mi)
% 1.62/1.31  % (2235)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_1900 for (2999ds/2Mi)
% 1.62/1.31  % (2237)lrs+1004_1:128_cond=on:e2e=on:sp=weighted_frequency:i=18:si=on:rtra=on_0 on DTF2THF_1900 for (2999ds/18Mi)
% 1.62/1.31  % (2235)Instruction limit reached!
% 1.62/1.31  % (2235)------------------------------
% 1.62/1.31  % (2235)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.62/1.31  % (2235)Termination reason: Unknown
% 1.62/1.31  % (2235)Termination phase: Property scanning
% 1.62/1.31  
% 1.62/1.31  % (2235)Memory used [KB]: 895
% 1.62/1.31  % (2235)Time elapsed: 0.003 s
% 1.62/1.31  % (2235)Instructions burned: 2 (million)
% 1.62/1.31  % (2235)------------------------------
% 1.62/1.31  % (2235)------------------------------
% 1.62/1.31  % (2231)First to succeed.
% 1.62/1.31  % (2237)Also succeeded, but the first one will report.
% 1.62/1.31  % (2238)lrs+10_1:1_bet=on:cnfonf=off:fd=off:hud=5:inj=on:i=3:si=on:rtra=on_0 on DTF2THF_1900 for (2999ds/3Mi)
% 1.62/1.31  % (2231)Refutation found. Thanks to Tanya!
% 1.62/1.31  % SZS status Theorem for DTF2THF_1900
% 1.62/1.31  % SZS output start Proof for DTF2THF_1900
% 1.62/1.31  thf(type_def_5, type, nat: $tType).
% 1.62/1.31  thf(func_def_0, type, nat: $tType).
% 1.62/1.31  thf(func_def_1, type, x: nat).
% 1.62/1.31  thf(func_def_2, type, y: nat).
% 1.62/1.31  thf(func_def_3, type, more: nat > nat > $o).
% 1.62/1.31  thf(func_def_5, type, less: nat > nat > $o).
% 1.62/1.31  thf(f32,plain,(
% 1.62/1.31    $false),
% 1.62/1.31    inference(subsumption_resolution,[status(thm)],[f31,f25])).
% 1.62/1.31  thf(f25,plain,(
% 1.62/1.31    ((more @ x @ y) != $true)),
% 1.62/1.31    inference(cnf_transformation,[status(thm)],[f15])).
% 1.62/1.31  thf(f15,plain,(
% 1.62/1.31    ((more @ x @ y) != $true)),
% 1.62/1.31    inference(flattening,[status(thm)],[f8])).
% 1.62/1.31  thf(f8,plain,(
% 1.62/1.31    ~((more @ x @ y) = $true)),
% 1.62/1.31    inference(fool_elimination,[status(thm)],[f7])).
% 1.62/1.31  thf(f7,plain,(
% 1.62/1.31    ~(more @ x @ y)),
% 1.62/1.31    inference(rectify,[status(thm)],[f1])).
% 1.62/1.31  thf(f1,axiom,(
% 1.62/1.31    ~(more @ x @ y)),
% 1.62/1.31    file('/export/starexec/sandbox/tmp/tmp.WvXqfvsmTb/DTF2THF_1900.p',n)).
% 1.62/1.31  thf(f31,plain,(
% 1.62/1.31    ((more @ x @ y) = $true)),
% 1.62/1.31    inference(subsumption_resolution,[status(thm)],[f30,f24])).
% 1.62/1.31  thf(f24,plain,(
% 1.62/1.31    (x != y)),
% 1.62/1.31    inference(cnf_transformation,[status(thm)],[f22])).
% 1.62/1.31  thf(f22,plain,(
% 1.62/1.31    (x != y) & ((less @ x @ y) != $true)),
% 1.62/1.31    inference(ennf_transformation,[status(thm)],[f17])).
% 1.62/1.31  thf(f17,plain,(
% 1.62/1.31    ~(((less @ x @ y) != $true) => (x = y))),
% 1.62/1.31    inference(flattening,[status(thm)],[f12])).
% 1.62/1.31  thf(f12,plain,(
% 1.62/1.31    ~(~((less @ x @ y) = $true) => (x = y))),
% 1.62/1.31    inference(fool_elimination,[status(thm)],[f11])).
% 1.62/1.31  thf(f11,plain,(
% 1.62/1.31    ~(~(less @ x @ y) => (x = y))),
% 1.62/1.31    inference(rectify,[status(thm)],[f5])).
% 1.62/1.31  thf(f5,negated_conjecture,(
% 1.62/1.31    ~(~(less @ x @ y) => (x = y))),
% 1.62/1.31    inference(negated_conjecture,[status(cth)],[f4])).
% 1.62/1.31  thf(f4,conjecture,(
% 1.62/1.31    ~(less @ x @ y) => (x = y)),
% 1.62/1.31    file('/export/starexec/sandbox/tmp/tmp.WvXqfvsmTb/DTF2THF_1900.p',satz10e)).
% 1.62/1.31  thf(f30,plain,(
% 1.62/1.31    (x = y) | ((more @ x @ y) = $true)),
% 1.62/1.31    inference(trivial_inequality_removal,[status(thm)],[f29])).
% 1.62/1.31  thf(f29,plain,(
% 1.62/1.31    ((more @ x @ y) = $true) | ($true != $true) | (x = y)),
% 1.62/1.31    inference(superposition,[status(thm)],[f23,f26])).
% 1.62/1.31  thf(f26,plain,(
% 1.62/1.31    ( ! [X0 : nat,X1 : nat] : (((less @ X1 @ X0) = $true) | ((more @ X1 @ X0) = $true) | (X0 = X1)) )),
% 1.62/1.31    inference(cnf_transformation,[status(thm)],[f20])).
% 1.62/1.31  thf(f20,plain,(
% 1.62/1.31    ! [X0 : nat,X1 : nat] : (((more @ X1 @ X0) = $true) | (X0 = X1) | ((less @ X1 @ X0) = $true))),
% 1.62/1.31    inference(flattening,[status(thm)],[f19])).
% 1.62/1.31  thf(f19,plain,(
% 1.62/1.31    ! [X1 : nat,X0 : nat] : ((((less @ X1 @ X0) = $true) | ((more @ X1 @ X0) = $true)) | (X0 = X1))),
% 1.62/1.31    inference(ennf_transformation,[status(thm)],[f18])).
% 1.62/1.31  thf(f18,plain,(
% 1.62/1.31    ! [X1 : nat,X0 : nat] : ((X0 != X1) => (((more @ X1 @ X0) != $true) => ((less @ X1 @ X0) = $true)))),
% 1.62/1.31    inference(flattening,[status(thm)],[f14])).
% 1.62/1.31  thf(f14,plain,(
% 1.62/1.31    ! [X0 : nat,X1 : nat] : ((X0 != X1) => (~((more @ X1 @ X0) = $true) => ((less @ X1 @ X0) = $true)))),
% 1.62/1.31    inference(fool_elimination,[status(thm)],[f13])).
% 1.62/1.31  thf(f13,plain,(
% 1.62/1.31    ! [X0 : nat,X1 : nat] : ((X0 != X1) => (~(more @ X1 @ X0) => (less @ X1 @ X0)))),
% 1.62/1.31    inference(rectify,[status(thm)],[f3])).
% 1.62/1.31  thf(f3,axiom,(
% 1.62/1.31    ! [X2 : nat,X1 : nat] : ((X1 != X2) => (~(more @ X1 @ X2) => (less @ X1 @ X2)))),
% 1.62/1.31    file('/export/starexec/sandbox/tmp/tmp.WvXqfvsmTb/DTF2THF_1900.p',satz10a)).
% 1.62/1.31  thf(f23,plain,(
% 1.62/1.31    ((less @ x @ y) != $true)),
% 1.62/1.31    inference(cnf_transformation,[status(thm)],[f22])).
% 1.62/1.31  % SZS output end Proof for DTF2THF_1900
% 1.62/1.31  % (2231)------------------------------
% 1.62/1.31  % (2231)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100)
% 1.62/1.31  % (2231)Termination reason: Refutation
% 1.62/1.31  
% 1.62/1.31  % (2231)Memory used [KB]: 5500
% 1.62/1.31  % (2231)Time elapsed: 0.004 s
% 1.62/1.31  % (2231)Instructions burned: 1 (million)
% 1.62/1.31  % (2231)------------------------------
% 1.62/1.31  % (2231)------------------------------
% 1.62/1.31  % (2230)Success in time 0.019 s
%------------------------------------------------------------------------------