TSTP Solution File: LCL734^5 by Lash---1.13

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Lash---1.13
% Problem  : LCL734^5 : TPTP v8.1.2. Released v4.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : lash -P picomus -M modes -p tstp -t %d %s

% Computer : n025.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 08:04:46 EDT 2023

% Result   : Theorem 20.19s 20.41s
% Output   : Proof 20.19s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    4
%            Number of leaves      :   16
% Syntax   : Number of formulae    :   22 (  11 unt;   2 typ;   1 def)
%            Number of atoms       :   31 (   1 equ;   0 cnn)
%            Maximal formula atoms :    3 (   1 avg)
%            Number of connectives :  129 (  43   ~;   5   |;   0   &;  56   @)
%                                         (   5 <=>;  20  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   14 (   5 avg)
%            Number of types       :    2 (   1 usr)
%            Number of type conns  :   49 (  49   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :    9 (   7 usr;   7 con; 0-2 aty)
%            Number of variables   :   37 (   1   ^;  33   !;   0   ?;  37   :)
%                                         (   0  !>;   0  ?*;   0  @-;   3  @+)

% Comments : 
%------------------------------------------------------------------------------
thf(ty_b,type,
    b: $tType ).

thf(ty_eigen__44,type,
    eigen__44: b > $o ).

thf(h0,assumption,
    ! [X1: ( b > $o ) > $o,X2: b > $o] :
      ( ( X1 @ X2 )
     => ( X1 @ ( eps__0 @ X1 ) ) ),
    introduced(assumption,[]) ).

thf(eigendef_eigen__44,definition,
    ( eigen__44
    = ( eps__0
      @ ^ [X1: b > $o] :
          ~ ( ~ ! [X2: b] :
                  ~ ( X1 @ X2 )
           => ( X1
              @ @+[X2: b] : ( X1 @ X2 ) ) ) ) ),
    introduced(definition,[new_symbols(definition,[eigen__44])]) ).

thf(sP1,plain,
    ( sP1
  <=> ( eigen__44
      @ @+[X1: b] : ( eigen__44 @ X1 ) ) ),
    introduced(definition,[new_symbols(definition,[sP1])]) ).

thf(sP2,plain,
    ( sP2
  <=> ! [X1: b] :
        ~ ( eigen__44 @ X1 ) ),
    introduced(definition,[new_symbols(definition,[sP2])]) ).

thf(sP3,plain,
    ( sP3
  <=> ( ~ sP2
     => sP1 ) ),
    introduced(definition,[new_symbols(definition,[sP3])]) ).

thf(sP4,plain,
    ( sP4
  <=> ! [X1: ( b > $o ) > b] :
        ~ ! [X2: b > $o] :
            ( ~ ! [X3: b] :
                  ~ ( X2 @ X3 )
           => ( X2 @ ( X1 @ X2 ) ) ) ),
    introduced(definition,[new_symbols(definition,[sP4])]) ).

thf(sP5,plain,
    ( sP5
  <=> ! [X1: b > $o] :
        ( ~ ! [X2: b] :
              ~ ( X1 @ X2 )
       => ( X1
          @ @+[X2: b] : ( X1 @ X2 ) ) ) ),
    introduced(definition,[new_symbols(definition,[sP5])]) ).

thf(cX5310B,conjecture,
    ( ! [X1: ( b > $o ) > b > $o,X2: ( b > $o ) > b > $o] :
        ( ! [X3: b > $o] :
            ~ ! [X4: b] :
                ~ ( ~ ( X1 @ X3 @ X4 )
                 => ( X2 @ X3 @ X4 ) )
       => ~ ! [X3: ( b > $o ) > b] :
              ~ ! [X4: b > $o] :
                  ( ~ ( X1 @ X4 @ ( X3 @ X4 ) )
                 => ( X2 @ X4 @ ( X3 @ X4 ) ) ) )
   => ~ sP4 ) ).

thf(h1,negated_conjecture,
    ~ ( ! [X1: ( b > $o ) > b > $o,X2: ( b > $o ) > b > $o] :
          ( ! [X3: b > $o] :
              ~ ! [X4: b] :
                  ~ ( ~ ( X1 @ X3 @ X4 )
                   => ( X2 @ X3 @ X4 ) )
         => ~ ! [X3: ( b > $o ) > b] :
                ~ ! [X4: b > $o] :
                    ( ~ ( X1 @ X4 @ ( X3 @ X4 ) )
                   => ( X2 @ X4 @ ( X3 @ X4 ) ) ) )
     => ~ sP4 ),
    inference(assume_negation,[status(cth)],[cX5310B]) ).

thf(h2,assumption,
    ! [X1: ( b > $o ) > b > $o,X2: ( b > $o ) > b > $o] :
      ( ! [X3: b > $o] :
          ~ ! [X4: b] :
              ~ ( ~ ( X1 @ X3 @ X4 )
               => ( X2 @ X3 @ X4 ) )
     => ~ ! [X3: ( b > $o ) > b] :
            ~ ! [X4: b > $o] :
                ( ~ ( X1 @ X4 @ ( X3 @ X4 ) )
               => ( X2 @ X4 @ ( X3 @ X4 ) ) ) ),
    introduced(assumption,[]) ).

thf(h3,assumption,
    sP4,
    introduced(assumption,[]) ).

thf(1,plain,
    ( sP1
    | sP2 ),
    inference(choice_rule,[status(thm)],]) ).

thf(2,plain,
    ( sP3
    | ~ sP1 ),
    inference(prop_rule,[status(thm)],]) ).

thf(3,plain,
    ( sP3
    | ~ sP2 ),
    inference(prop_rule,[status(thm)],]) ).

thf(4,plain,
    ( sP5
    | ~ sP3 ),
    inference(eigen_choice_rule,[status(thm),assumptions([h0])],[h0,eigendef_eigen__44]) ).

thf(5,plain,
    ( ~ sP4
    | ~ sP5 ),
    inference(all_rule,[status(thm)],]) ).

thf(6,plain,
    $false,
    inference(prop_unsat,[status(thm),assumptions([h2,h3,h1,h0])],[1,2,3,4,5,h3]) ).

thf(7,plain,
    $false,
    inference(tab_negimp,[status(thm),assumptions([h1,h0]),tab_negimp(discharge,[h2,h3])],[h1,6,h2,h3]) ).

thf(8,plain,
    $false,
    inference(eigenvar_choice,[status(thm),assumptions([h1]),eigenvar_choice(discharge,[h0])],[7,h0]) ).

thf(0,theorem,
    ( ! [X1: ( b > $o ) > b > $o,X2: ( b > $o ) > b > $o] :
        ( ! [X3: b > $o] :
            ~ ! [X4: b] :
                ~ ( ~ ( X1 @ X3 @ X4 )
                 => ( X2 @ X3 @ X4 ) )
       => ~ ! [X3: ( b > $o ) > b] :
              ~ ! [X4: b > $o] :
                  ( ~ ( X1 @ X4 @ ( X3 @ X4 ) )
                 => ( X2 @ X4 @ ( X3 @ X4 ) ) ) )
   => ~ sP4 ),
    inference(contra,[status(thm),contra(discharge,[h1])],[7,h1]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem  : LCL734^5 : TPTP v8.1.2. Released v4.0.0.
% 0.12/0.12  % Command  : lash -P picomus -M modes -p tstp -t %d %s
% 0.12/0.33  % Computer : n025.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit : 300
% 0.12/0.33  % WCLimit  : 300
% 0.12/0.33  % DateTime : Thu Aug 24 20:15:21 EDT 2023
% 0.12/0.33  % CPUTime  : 
% 20.19/20.41  % SZS status Theorem
% 20.19/20.41  % Mode: cade22grackle2x798d
% 20.19/20.41  % Steps: 1617
% 20.19/20.41  % SZS output start Proof
% See solution above
%------------------------------------------------------------------------------