TSTP Solution File: NUN024^2 by Lash---1.13

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Lash---1.13
% Problem  : NUN024^2 : TPTP v8.1.2. Released v6.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : lash -P picomus -M modes -p tstp -t %d %s

% Computer : n022.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 : Thu Aug 31 12:50:02 EDT 2023

% Result   : Theorem 20.25s 20.71s
% Output   : Proof 20.25s
% Verified : 
% SZS Type : ERROR: Analysing output (MakeTreeStats fails)

% Comments : 
%------------------------------------------------------------------------------
thf(ty_s,type,
    s: $i > $i ).

thf(ty_ite,type,
    ite: $o > $i > $i > $i ).

thf(ty_zero,type,
    zero: $i ).

thf(ty_h,type,
    h: $i > $i ).

thf(sP1,plain,
    ( sP1
  <=> ! [X1: $i] :
        ( ( h @ X1 )
        = ( ite @ ( X1 = zero ) @ ( s @ zero ) @ zero ) ) ),
    introduced(definition,[new_symbols(definition,[sP1])]) ).

thf(sP2,plain,
    ( sP2
  <=> ! [X1: $i] :
        ( ( ite @ $false @ ( s @ zero ) @ X1 )
        = X1 ) ),
    introduced(definition,[new_symbols(definition,[sP2])]) ).

thf(sP3,plain,
    ( sP3
  <=> ( ( ( h @ zero )
        = ( s @ zero ) )
     => ( ( h @ ( s @ zero ) )
       != zero ) ) ),
    introduced(definition,[new_symbols(definition,[sP3])]) ).

thf(sP4,plain,
    ( sP4
  <=> ( ( h @ ( s @ ( s @ zero ) ) )
      = ( ite
        @ ( ( s @ ( s @ zero ) )
          = zero )
        @ ( s @ zero )
        @ zero ) ) ),
    introduced(definition,[new_symbols(definition,[sP4])]) ).

thf(sP5,plain,
    ( sP5
  <=> ( ( ite
        @ ( ( s @ zero )
          = zero )
        @ ( s @ zero )
        @ zero )
      = zero ) ),
    introduced(definition,[new_symbols(definition,[sP5])]) ).

thf(sP6,plain,
    ( sP6
  <=> ( ( ite @ ~ $false @ ( s @ zero ) @ zero )
      = ( s @ zero ) ) ),
    introduced(definition,[new_symbols(definition,[sP6])]) ).

thf(sP7,plain,
    ( sP7
  <=> ( ( ite
        @ ( ( s @ zero )
          = zero )
        @ ( s @ zero )
        @ zero )
      = ( h @ ( s @ zero ) ) ) ),
    introduced(definition,[new_symbols(definition,[sP7])]) ).

thf(sP8,plain,
    ( sP8
  <=> ! [X1: $o,X2: $i,X3: $i] :
        ( ~ X1
       => ( ( ite @ X1 @ X2 @ X3 )
          = X3 ) ) ),
    introduced(definition,[new_symbols(definition,[sP8])]) ).

thf(sP9,plain,
    ( sP9
  <=> ( ( ite
        @ ( ( s @ ( s @ zero ) )
          = zero )
        @ ( s @ zero )
        @ zero )
      = ( h @ ( s @ ( s @ zero ) ) ) ) ),
    introduced(definition,[new_symbols(definition,[sP9])]) ).

thf(sP10,plain,
    ( sP10
  <=> ( ( h @ zero )
      = ( s @ zero ) ) ),
    introduced(definition,[new_symbols(definition,[sP10])]) ).

thf(sP11,plain,
    ( sP11
  <=> ! [X1: $i] :
        ( ( ite @ ~ $false @ ( s @ zero ) @ X1 )
        = ( s @ zero ) ) ),
    introduced(definition,[new_symbols(definition,[sP11])]) ).

thf(sP12,plain,
    ( sP12
  <=> ! [X1: $o,X2: $i,X3: $i] :
        ( X1
       => ( ( ite @ X1 @ X2 @ X3 )
          = X2 ) ) ),
    introduced(definition,[new_symbols(definition,[sP12])]) ).

thf(sP13,plain,
    ( sP13
  <=> ( ( ite @ $false @ ( s @ zero ) @ zero )
      = ( ite
        @ ( ( s @ zero )
          = zero )
        @ ( s @ zero )
        @ zero ) ) ),
    introduced(definition,[new_symbols(definition,[sP13])]) ).

thf(sP14,plain,
    ( sP14
  <=> ! [X1: $i,X2: $i] :
        ( ( ite @ $false @ X1 @ X2 )
        = X2 ) ),
    introduced(definition,[new_symbols(definition,[sP14])]) ).

thf(sP15,plain,
    ( sP15
  <=> ( ( ite @ $false @ ( s @ zero ) @ zero )
      = ( ite
        @ ( ( s @ ( s @ zero ) )
          = zero )
        @ ( s @ zero )
        @ zero ) ) ),
    introduced(definition,[new_symbols(definition,[sP15])]) ).

thf(sP16,plain,
    ( sP16
  <=> ( ( h @ ( s @ zero ) )
      = ( ite
        @ ( ( s @ zero )
          = zero )
        @ ( s @ zero )
        @ zero ) ) ),
    introduced(definition,[new_symbols(definition,[sP16])]) ).

thf(sP17,plain,
    ( sP17
  <=> ( ~ sP3
     => ( ( h @ ( s @ ( s @ zero ) ) )
       != zero ) ) ),
    introduced(definition,[new_symbols(definition,[sP17])]) ).

thf(sP18,plain,
    ( sP18
  <=> ( ( h @ ( s @ zero ) )
      = zero ) ),
    introduced(definition,[new_symbols(definition,[sP18])]) ).

thf(sP19,plain,
    ( sP19
  <=> ( ( h @ ( s @ ( s @ zero ) ) )
      = zero ) ),
    introduced(definition,[new_symbols(definition,[sP19])]) ).

thf(sP20,plain,
    ( sP20
  <=> ! [X1: $i,X2: $i] :
        ( ( ite @ ~ $false @ X1 @ X2 )
        = X1 ) ),
    introduced(definition,[new_symbols(definition,[sP20])]) ).

thf(sP21,plain,
    ( sP21
  <=> ! [X1: $i > $i] :
        ( ~ ( ( ( X1 @ zero )
              = ( s @ zero ) )
           => ( ( X1 @ ( s @ zero ) )
             != zero ) )
       => ( ( X1 @ ( s @ ( s @ zero ) ) )
         != zero ) ) ),
    introduced(definition,[new_symbols(definition,[sP21])]) ).

thf(sP22,plain,
    ( sP22
  <=> ( ( h @ zero )
      = ( ite @ ~ $false @ ( s @ zero ) @ zero ) ) ),
    introduced(definition,[new_symbols(definition,[sP22])]) ).

thf(sP23,plain,
    ( sP23
  <=> ( ( s @ zero )
      = zero ) ),
    introduced(definition,[new_symbols(definition,[sP23])]) ).

thf(sP24,plain,
    ( sP24
  <=> ( ( ite
        @ ( ( s @ ( s @ zero ) )
          = zero )
        @ ( s @ zero )
        @ zero )
      = zero ) ),
    introduced(definition,[new_symbols(definition,[sP24])]) ).

thf(sP25,plain,
    ( sP25
  <=> ( ( s @ ( s @ zero ) )
      = zero ) ),
    introduced(definition,[new_symbols(definition,[sP25])]) ).

thf(sP26,plain,
    ( sP26
  <=> ! [X1: $i] :
        ( ( s @ X1 )
       != zero ) ),
    introduced(definition,[new_symbols(definition,[sP26])]) ).

thf(sP27,plain,
    ( sP27
  <=> ( ( ite @ $false @ ( s @ zero ) @ zero )
      = zero ) ),
    introduced(definition,[new_symbols(definition,[sP27])]) ).

thf(sP28,plain,
    ( sP28
  <=> $false ),
    introduced(definition,[new_symbols(definition,[sP28])]) ).

thf(n10,conjecture,
    ( ~ ( ~ ( ~ ( ~ ( sP12
                   => ~ sP8 )
               => ~ sP26 )
           => ~ ! [X1: $i] :
                  ( ( s @ X1 )
                 != X1 ) )
       => ~ sP1 )
   => ~ sP21 ) ).

thf(h0,negated_conjecture,
    ~ ( ~ ( ~ ( ~ ( ~ ( sP12
                     => ~ sP8 )
                 => ~ sP26 )
             => ~ ! [X1: $i] :
                    ( ( s @ X1 )
                   != X1 ) )
         => ~ sP1 )
     => ~ sP21 ),
    inference(assume_negation,[status(cth)],[n10]) ).

thf(h1,assumption,
    ~ ( ~ ( ~ ( ~ ( sP12
                 => ~ sP8 )
             => ~ sP26 )
         => ~ ! [X1: $i] :
                ( ( s @ X1 )
               != X1 ) )
     => ~ sP1 ),
    introduced(assumption,[]) ).

thf(h2,assumption,
    sP21,
    introduced(assumption,[]) ).

thf(h3,assumption,
    ~ ( ~ ( ~ ( sP12
             => ~ sP8 )
         => ~ sP26 )
     => ~ ! [X1: $i] :
            ( ( s @ X1 )
           != X1 ) ),
    introduced(assumption,[]) ).

thf(h4,assumption,
    sP1,
    introduced(assumption,[]) ).

thf(h5,assumption,
    ~ ( ~ ( sP12
         => ~ sP8 )
     => ~ sP26 ),
    introduced(assumption,[]) ).

thf(h6,assumption,
    ! [X1: $i] :
      ( ( s @ X1 )
     != X1 ),
    introduced(assumption,[]) ).

thf(h7,assumption,
    ~ ( sP12
     => ~ sP8 ),
    introduced(assumption,[]) ).

thf(h8,assumption,
    sP26,
    introduced(assumption,[]) ).

thf(h9,assumption,
    sP12,
    introduced(assumption,[]) ).

thf(h10,assumption,
    sP8,
    introduced(assumption,[]) ).

thf(1,plain,
    ( sP15
    | sP28
    | sP28
    | sP25 ),
    inference(prop_rule,[status(thm)],]) ).

thf(2,plain,
    ( sP13
    | sP28
    | sP28
    | sP23 ),
    inference(prop_rule,[status(thm)],]) ).

thf(3,plain,
    ( ~ sP27
    | sP24
    | ~ sP15
    | ~ sP27 ),
    inference(confrontation_rule,[status(thm)],]) ).

thf(4,plain,
    ( ~ sP27
    | sP5
    | ~ sP13
    | ~ sP27 ),
    inference(confrontation_rule,[status(thm)],]) ).

thf(5,plain,
    ~ sP28,
    inference(prop_rule,[status(thm)],]) ).

thf(6,plain,
    ( ~ sP16
    | sP18
    | ~ sP7
    | ~ sP5 ),
    inference(confrontation_rule,[status(thm)],]) ).

thf(7,plain,
    ( ~ sP22
    | sP10
    | sP28
    | ~ sP6 ),
    inference(confrontation_rule,[status(thm)],]) ).

thf(8,plain,
    ( ~ sP4
    | sP19
    | ~ sP9
    | ~ sP24 ),
    inference(confrontation_rule,[status(thm)],]) ).

thf(9,plain,
    ( ~ sP11
    | sP6 ),
    inference(all_rule,[status(thm)],]) ).

thf(10,plain,
    ( ~ sP2
    | sP27 ),
    inference(all_rule,[status(thm)],]) ).

thf(11,plain,
    ( ~ sP3
    | ~ sP10
    | ~ sP18 ),
    inference(prop_rule,[status(thm)],]) ).

thf(12,plain,
    ( ~ sP20
    | sP11 ),
    inference(all_rule,[status(thm)],]) ).

thf(13,plain,
    ( ~ sP14
    | sP2 ),
    inference(all_rule,[status(thm)],]) ).

thf(14,plain,
    ( ~ sP17
    | sP3
    | ~ sP19 ),
    inference(prop_rule,[status(thm)],]) ).

thf(15,plain,
    ( ~ sP4
    | sP9 ),
    inference(symeq,[status(thm)],]) ).

thf(16,plain,
    ( ~ sP16
    | sP7 ),
    inference(symeq,[status(thm)],]) ).

thf(17,plain,
    ( ~ sP12
    | sP20 ),
    inference(all_rule,[status(thm)],]) ).

thf(18,plain,
    ( ~ sP8
    | sP14 ),
    inference(all_rule,[status(thm)],]) ).

thf(19,plain,
    ( ~ sP26
    | ~ sP25 ),
    inference(all_rule,[status(thm)],]) ).

thf(20,plain,
    ( ~ sP26
    | ~ sP23 ),
    inference(all_rule,[status(thm)],]) ).

thf(21,plain,
    ( ~ sP21
    | sP17 ),
    inference(all_rule,[status(thm)],]) ).

thf(22,plain,
    ( ~ sP1
    | sP4 ),
    inference(all_rule,[status(thm)],]) ).

thf(23,plain,
    ( ~ sP1
    | sP16 ),
    inference(all_rule,[status(thm)],]) ).

thf(24,plain,
    ( ~ sP1
    | sP22 ),
    inference(all_rule,[status(thm)],]) ).

thf(25,plain,
    $false,
    inference(prop_unsat,[status(thm),assumptions([h9,h10,h7,h8,h5,h6,h3,h4,h1,h2,h0])],[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,h9,h10,h8,h4,h2]) ).

thf(26,plain,
    $false,
    inference(tab_negimp,[status(thm),assumptions([h7,h8,h5,h6,h3,h4,h1,h2,h0]),tab_negimp(discharge,[h9,h10])],[h7,25,h9,h10]) ).

thf(27,plain,
    $false,
    inference(tab_negimp,[status(thm),assumptions([h5,h6,h3,h4,h1,h2,h0]),tab_negimp(discharge,[h7,h8])],[h5,26,h7,h8]) ).

thf(28,plain,
    $false,
    inference(tab_negimp,[status(thm),assumptions([h3,h4,h1,h2,h0]),tab_negimp(discharge,[h5,h6])],[h3,27,h5,h6]) ).

thf(29,plain,
    $false,
    inference(tab_negimp,[status(thm),assumptions([h1,h2,h0]),tab_negimp(discharge,[h3,h4])],[h1,28,h3,h4]) ).

thf(30,plain,
    $false,
    inference(tab_negimp,[status(thm),assumptions([h0]),tab_negimp(discharge,[h1,h2])],[h0,29,h1,h2]) ).

thf(0,theorem,
    ( ~ ( ~ ( ~ ( ~ ( sP12
                   => ~ sP8 )
               => ~ sP26 )
           => ~ ! [X1: $i] :
                  ( ( s @ X1 )
                 != X1 ) )
       => ~ sP1 )
   => ~ sP21 ),
    inference(contra,[status(thm),contra(discharge,[h0])],[30,h0]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem  : NUN024^2 : TPTP v8.1.2. Released v6.4.0.
% 0.00/0.12  % Command  : lash -P picomus -M modes -p tstp -t %d %s
% 0.13/0.33  % Computer : n022.cluster.edu
% 0.13/0.33  % Model    : x86_64 x86_64
% 0.13/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.33  % Memory   : 8042.1875MB
% 0.13/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.33  % CPULimit : 300
% 0.13/0.33  % WCLimit  : 300
% 0.13/0.33  % DateTime : Sun Aug 27 09:42:24 EDT 2023
% 0.13/0.33  % CPUTime  : 
% 20.25/20.71  % SZS status Theorem
% 20.25/20.71  % Mode: cade22grackle2x798d
% 20.25/20.71  % Steps: 2210
% 20.25/20.71  % SZS output start Proof
% See solution above
%------------------------------------------------------------------------------