TSTP Solution File: SYO068^4.001 by Lash---1.13

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%------------------------------------------------------------------------------
% File     : Lash---1.13
% Problem  : SYO068^4.001 : 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 : n004.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 : Fri Sep  1 04:45:02 EDT 2023

% Result   : Theorem 0.19s 0.40s
% Output   : Proof 0.19s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    4
%            Number of leaves      :   55
% Syntax   : Number of formulae    :   61 (  31 unt;   5 typ;  20 def)
%            Number of atoms       :  153 (  20 equ;   3 cnn)
%            Maximal formula atoms :    8 (   2 avg)
%            Number of connectives :  174 (  21   ~;  16   |;   1   &;  97   @)
%                                         (  14 <=>;  25  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   11 (   3 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :   31 (  31   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   43 (  39 usr;  39 con; 0-2 aty)
%            Number of variables   :   59 (  34   ^;  23   !;   2   ?;  59   :)

% Comments : 
%------------------------------------------------------------------------------
thf(ty_p1,type,
    p1: $i > $o ).

thf(ty_p0,type,
    p0: $i > $o ).

thf(ty_eigen__1,type,
    eigen__1: $i ).

thf(ty_eigen__0,type,
    eigen__0: $i ).

thf(ty_irel,type,
    irel: $i > $i > $o ).

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

thf(eigendef_eigen__1,definition,
    ( eigen__1
    = ( eps__0
      @ ^ [X1: $i] :
          ~ ( ( irel @ eigen__0 @ X1 )
           => ( p1 @ X1 ) ) ) ),
    introduced(definition,[new_symbols(definition,[eigen__1])]) ).

thf(sP1,plain,
    ( sP1
  <=> ! [X1: $i] :
        ( ( irel @ eigen__0 @ X1 )
       => ( p0 @ X1 ) ) ),
    introduced(definition,[new_symbols(definition,[sP1])]) ).

thf(sP2,plain,
    ( sP2
  <=> ! [X1: $i] :
        ( ( irel @ eigen__0 @ X1 )
       => ( p1 @ X1 ) ) ),
    introduced(definition,[new_symbols(definition,[sP2])]) ).

thf(sP3,plain,
    ( sP3
  <=> ( p0 @ eigen__0 ) ),
    introduced(definition,[new_symbols(definition,[sP3])]) ).

thf(sP4,plain,
    ( sP4
  <=> ( sP2
     => ! [X1: $i] :
          ( ( irel @ eigen__0 @ X1 )
         => ( ! [X2: $i] :
                ( ( irel @ X1 @ X2 )
               => ( p1 @ X2 ) )
           => ! [X2: $i] :
                ( ( irel @ X1 @ X2 )
               => ( p0 @ X2 ) ) ) ) ) ),
    introduced(definition,[new_symbols(definition,[sP4])]) ).

thf(sP5,plain,
    ( sP5
  <=> ( irel @ eigen__0 @ eigen__0 ) ),
    introduced(definition,[new_symbols(definition,[sP5])]) ).

thf(sP6,plain,
    ( sP6
  <=> ! [X1: $i] :
        ( ( irel @ eigen__0 @ X1 )
       => ( ! [X2: $i] :
              ( ( irel @ X1 @ X2 )
             => ( p1 @ X2 ) )
         => ! [X2: $i] :
              ( ( irel @ X1 @ X2 )
             => ( p0 @ X2 ) ) ) ) ),
    introduced(definition,[new_symbols(definition,[sP6])]) ).

thf(sP7,plain,
    ( sP7
  <=> ( sP5
     => sP3 ) ),
    introduced(definition,[new_symbols(definition,[sP7])]) ).

thf(sP8,plain,
    ( sP8
  <=> ( sP5
     => ( sP2
       => sP1 ) ) ),
    introduced(definition,[new_symbols(definition,[sP8])]) ).

thf(sP9,plain,
    ( sP9
  <=> ! [X1: $i] : ( p1 @ X1 ) ),
    introduced(definition,[new_symbols(definition,[sP9])]) ).

thf(sP10,plain,
    ( sP10
  <=> ! [X1: $i] : ( irel @ X1 @ X1 ) ),
    introduced(definition,[new_symbols(definition,[sP10])]) ).

thf(sP11,plain,
    ( sP11
  <=> ( ( irel @ eigen__0 @ eigen__1 )
     => ( p1 @ eigen__1 ) ) ),
    introduced(definition,[new_symbols(definition,[sP11])]) ).

thf(sP12,plain,
    ( sP12
  <=> ( p1 @ eigen__1 ) ),
    introduced(definition,[new_symbols(definition,[sP12])]) ).

thf(sP13,plain,
    ( sP13
  <=> ! [X1: $i] :
        ( ! [X2: $i] :
            ( ( irel @ X1 @ X2 )
           => ( p1 @ X2 ) )
       => ! [X2: $i] :
            ( ( irel @ X1 @ X2 )
           => ( ! [X3: $i] :
                  ( ( irel @ X2 @ X3 )
                 => ( p1 @ X3 ) )
             => ! [X3: $i] :
                  ( ( irel @ X2 @ X3 )
                 => ( p0 @ X3 ) ) ) ) ) ),
    introduced(definition,[new_symbols(definition,[sP13])]) ).

thf(sP14,plain,
    ( sP14
  <=> ( sP2
     => sP1 ) ),
    introduced(definition,[new_symbols(definition,[sP14])]) ).

thf(def_mnot,definition,
    ( mnot
    = ( ^ [X1: $i > $o,X2: $i] : ( (~) @ ( X1 @ X2 ) ) ) ) ).

thf(def_mor,definition,
    ( mor
    = ( ^ [X1: $i > $o,X2: $i > $o,X3: $i] :
          ( ( X1 @ X3 )
          | ( X2 @ X3 ) ) ) ) ).

thf(def_mand,definition,
    ( mand
    = ( ^ [X1: $i > $o,X2: $i > $o,X3: $i] :
          ( ( X1 @ X3 )
          & ( X2 @ X3 ) ) ) ) ).

thf(def_mimplies,definition,
    ( mimplies
    = ( ^ [X1: $i > $o,X2: $i > $o] : ( mor @ ( mnot @ X1 ) @ X2 ) ) ) ).

thf(def_mbox_s4,definition,
    ( mbox_s4
    = ( ^ [X1: $i > $o,X2: $i] :
        ! [X3: $i] :
          ( ^ [X4: $o,X5: $o] :
              ( X4
             => X5 )
          @ ( irel @ X2 @ X3 )
          @ ( X1 @ X3 ) ) ) ) ).

thf(def_iatom,definition,
    ( iatom
    = ( ^ [X1: $i > $o] : X1 ) ) ).

thf(def_inot,definition,
    ( inot
    = ( ^ [X1: $i > $o] : ( mnot @ ( mbox_s4 @ X1 ) ) ) ) ).

thf(def_itrue,definition,
    ( itrue
    = ( ^ [X1: $i] : $true ) ) ).

thf(def_ifalse,definition,
    ( ifalse
    = ( inot @ itrue ) ) ).

thf(def_iand,definition,
    ( iand
    = ( ^ [X1: $i > $o,X2: $i > $o] : ( mand @ X1 @ X2 ) ) ) ).

thf(def_ior,definition,
    ( ior
    = ( ^ [X1: $i > $o,X2: $i > $o] : ( mor @ ( mbox_s4 @ X1 ) @ ( mbox_s4 @ X2 ) ) ) ) ).

thf(def_iimplies,definition,
    ( iimplies
    = ( ^ [X1: $i > $o,X2: $i > $o] : ( mimplies @ ( mbox_s4 @ X1 ) @ ( mbox_s4 @ X2 ) ) ) ) ).

thf(def_iimplied,definition,
    ( iimplied
    = ( ^ [X1: $i > $o,X2: $i > $o] : ( iimplies @ X2 @ X1 ) ) ) ).

thf(def_iequiv,definition,
    ( iequiv
    = ( ^ [X1: $i > $o,X2: $i > $o] : ( iand @ ( iimplies @ X1 @ X2 ) @ ( iimplies @ X2 @ X1 ) ) ) ) ).

thf(def_ixor,definition,
    ( ixor
    = ( ^ [X1: $i > $o,X2: $i > $o] : ( inot @ ( iequiv @ X1 @ X2 ) ) ) ) ).

thf(def_ivalid,definition,
    ( ivalid
    = ( ^ [X1: $i > $o] :
        ! [X2: $i] : ( X1 @ X2 ) ) ) ).

thf(def_isatisfiable,definition,
    ( isatisfiable
    = ( ^ [X1: $i > $o] :
        ? [X2: $i] : ( X1 @ X2 ) ) ) ).

thf(def_icountersatisfiable,definition,
    ( icountersatisfiable
    = ( ^ [X1: $i > $o] :
        ? [X2: $i] : ( (~) @ ( X1 @ X2 ) ) ) ) ).

thf(def_iinvalid,definition,
    ( iinvalid
    = ( ^ [X1: $i > $o] :
        ! [X2: $i] : ( (~) @ ( X1 @ X2 ) ) ) ) ).

thf(con,conjecture,
    ! [X1: $i] : ( p0 @ X1 ) ).

thf(h1,negated_conjecture,
    ~ ! [X1: $i] : ( p0 @ X1 ),
    inference(assume_negation,[status(cth)],[con]) ).

thf(h2,assumption,
    ~ sP3,
    introduced(assumption,[]) ).

thf(1,plain,
    ( ~ sP9
    | sP12 ),
    inference(all_rule,[status(thm)],]) ).

thf(2,plain,
    ( ~ sP7
    | ~ sP5
    | sP3 ),
    inference(prop_rule,[status(thm)],]) ).

thf(3,plain,
    ( ~ sP1
    | sP7 ),
    inference(all_rule,[status(thm)],]) ).

thf(4,plain,
    ( ~ sP14
    | ~ sP2
    | sP1 ),
    inference(prop_rule,[status(thm)],]) ).

thf(5,plain,
    ( ~ sP8
    | ~ sP5
    | sP14 ),
    inference(prop_rule,[status(thm)],]) ).

thf(6,plain,
    ( ~ sP6
    | sP8 ),
    inference(all_rule,[status(thm)],]) ).

thf(7,plain,
    ( sP11
    | ~ sP12 ),
    inference(prop_rule,[status(thm)],]) ).

thf(8,plain,
    ( sP2
    | ~ sP11 ),
    inference(eigen_choice_rule,[status(thm),assumptions([h0])],[h0,eigendef_eigen__1]) ).

thf(9,plain,
    ( ~ sP4
    | ~ sP2
    | sP6 ),
    inference(prop_rule,[status(thm)],]) ).

thf(10,plain,
    ( ~ sP10
    | sP5 ),
    inference(all_rule,[status(thm)],]) ).

thf(11,plain,
    ( ~ sP13
    | sP4 ),
    inference(all_rule,[status(thm)],]) ).

thf(axiom2,axiom,
    sP13 ).

thf(axiom1,axiom,
    sP9 ).

thf(refl_axiom,axiom,
    sP10 ).

thf(12,plain,
    $false,
    inference(prop_unsat,[status(thm),assumptions([h2,h1,h0])],[1,2,3,4,5,6,7,8,9,10,11,h2,axiom2,axiom1,refl_axiom]) ).

thf(13,plain,
    $false,
    inference(tab_negall,[status(thm),assumptions([h1,h0]),tab_negall(discharge,[h2]),tab_negall(eigenvar,eigen__0)],[h1,12,h2]) ).

thf(14,plain,
    $false,
    inference(eigenvar_choice,[status(thm),assumptions([h1]),eigenvar_choice(discharge,[h0])],[13,h0]) ).

thf(0,theorem,
    ! [X1: $i] : ( p0 @ X1 ),
    inference(contra,[status(thm),contra(discharge,[h1])],[13,h1]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem  : SYO068^4.001 : TPTP v8.1.2. Released v4.0.0.
% 0.00/0.12  % Command  : lash -P picomus -M modes -p tstp -t %d %s
% 0.12/0.33  % Computer : n004.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 : Sat Aug 26 07:18:22 EDT 2023
% 0.12/0.34  % CPUTime  : 
% 0.19/0.40  % SZS status Theorem
% 0.19/0.40  % Mode: cade22grackle2xfee4
% 0.19/0.40  % Steps: 37
% 0.19/0.40  % SZS output start Proof
% See solution above
%------------------------------------------------------------------------------