TSTP Solution File: SYO572^7 by Lash---1.13

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Lash---1.13
% Problem  : SYO572^7 : TPTP v8.1.2. Released v5.5.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : lash -P picomus -M modes -p tstp -t %d %s

% Computer : n021.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 04:47:31 EDT 2023

% Result   : Theorem 0.19s 0.41s
% Output   : Proof 0.19s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    7
%            Number of leaves      :   79
% Syntax   : Number of formulae    :   88 (  45 unt;   7 typ;  33 def)
%            Number of atoms       :  225 (  37 equ;   5 cnn)
%            Maximal formula atoms :    6 (   2 avg)
%            Number of connectives :  385 (  61   ~;  23   |;   8   &; 230   @)
%                                         (  17 <=>;  46  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   12 (   3 avg)
%            Number of types       :    3 (   1 usr)
%            Number of type conns  :   66 (  66   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   60 (  56 usr;  56 con; 0-2 aty)
%            Number of variables   :  138 (  68   ^;  64   !;   6   ?; 138   :)

% Comments : 
%------------------------------------------------------------------------------
thf(ty_mu,type,
    mu: $tType ).

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

thf(ty_f,type,
    f: mu > $i > $o ).

thf(ty_rel_s4,type,
    rel_s4: $i > $i > $o ).

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

thf(ty_eigen__2,type,
    eigen__2: mu ).

thf(ty_exists_in_world,type,
    exists_in_world: mu > $i > $o ).

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

thf(eigendef_eigen__2,definition,
    ( eigen__2
    = ( eps__0
      @ ^ [X1: mu] :
          ~ ~ ( exists_in_world @ X1 @ eigen__0 ) ) ),
    introduced(definition,[new_symbols(definition,[eigen__2])]) ).

thf(sP1,plain,
    ( sP1
  <=> ( exists_in_world @ eigen__2 @ eigen__1 ) ),
    introduced(definition,[new_symbols(definition,[sP1])]) ).

thf(sP2,plain,
    ( sP2
  <=> ! [X1: $i] :
        ( ( rel_s4 @ eigen__0 @ X1 )
       => ~ ( f @ eigen__2 @ X1 ) ) ),
    introduced(definition,[new_symbols(definition,[sP2])]) ).

thf(sP3,plain,
    ( sP3
  <=> ( rel_s4 @ eigen__0 @ eigen__1 ) ),
    introduced(definition,[new_symbols(definition,[sP3])]) ).

thf(sP4,plain,
    ( sP4
  <=> ( ( exists_in_world @ eigen__2 @ eigen__0 )
     => sP2 ) ),
    introduced(definition,[new_symbols(definition,[sP4])]) ).

thf(sP5,plain,
    ( sP5
  <=> ! [X1: $i] :
        ( ~ ( ( exists_in_world @ eigen__2 @ eigen__0 )
           => ~ ( rel_s4 @ eigen__0 @ X1 ) )
       => ( exists_in_world @ eigen__2 @ X1 ) ) ),
    introduced(definition,[new_symbols(definition,[sP5])]) ).

thf(sP6,plain,
    ( sP6
  <=> ! [X1: mu] :
        ( ( exists_in_world @ X1 @ eigen__0 )
       => ! [X2: $i] :
            ( ( rel_s4 @ eigen__0 @ X2 )
           => ~ ( f @ X1 @ X2 ) ) ) ),
    introduced(definition,[new_symbols(definition,[sP6])]) ).

thf(sP7,plain,
    ( sP7
  <=> ! [X1: $i,X2: $i] :
        ( ~ ( ( exists_in_world @ eigen__2 @ X1 )
           => ~ ( rel_s4 @ X1 @ X2 ) )
       => ( exists_in_world @ eigen__2 @ X2 ) ) ),
    introduced(definition,[new_symbols(definition,[sP7])]) ).

thf(sP8,plain,
    ( sP8
  <=> ( f @ eigen__2 @ eigen__1 ) ),
    introduced(definition,[new_symbols(definition,[sP8])]) ).

thf(sP9,plain,
    ( sP9
  <=> ! [X1: mu] :
        ( ( exists_in_world @ X1 @ eigen__1 )
       => ( f @ X1 @ eigen__1 ) ) ),
    introduced(definition,[new_symbols(definition,[sP9])]) ).

thf(sP10,plain,
    ( sP10
  <=> ! [X1: mu] :
        ~ ( exists_in_world @ X1 @ eigen__0 ) ),
    introduced(definition,[new_symbols(definition,[sP10])]) ).

thf(sP11,plain,
    ( sP11
  <=> ( exists_in_world @ eigen__2 @ eigen__0 ) ),
    introduced(definition,[new_symbols(definition,[sP11])]) ).

thf(sP12,plain,
    ( sP12
  <=> ( sP11
     => ~ sP3 ) ),
    introduced(definition,[new_symbols(definition,[sP12])]) ).

thf(sP13,plain,
    ( sP13
  <=> ( sP1
     => sP8 ) ),
    introduced(definition,[new_symbols(definition,[sP13])]) ).

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

thf(sP15,plain,
    ( sP15
  <=> ( ~ sP12
     => sP1 ) ),
    introduced(definition,[new_symbols(definition,[sP15])]) ).

thf(sP16,plain,
    ( sP16
  <=> ( sP3
     => ~ sP8 ) ),
    introduced(definition,[new_symbols(definition,[sP16])]) ).

thf(sP17,plain,
    ( sP17
  <=> ! [X1: mu,X2: $i,X3: $i] :
        ( ~ ( ( exists_in_world @ X1 @ X2 )
           => ~ ( rel_s4 @ X2 @ X3 ) )
       => ( exists_in_world @ X1 @ X3 ) ) ),
    introduced(definition,[new_symbols(definition,[sP17])]) ).

thf(def_meq_prop,definition,
    ( meq_prop
    = ( ^ [X1: $i > $o,X2: $i > $o,X3: $i] :
          ( ( X1 @ X3 )
          = ( X2 @ X3 ) ) ) ) ).

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_mbox,definition,
    ( mbox
    = ( ^ [X1: $i > $i > $o,X2: $i > $o,X3: $i] :
        ! [X4: $i] :
          ( ( (~) @ ( X1 @ X3 @ X4 ) )
          | ( X2 @ X4 ) ) ) ) ).

thf(def_mforall_prop,definition,
    ( mforall_prop
    = ( ^ [X1: ( $i > $o ) > $i > $o,X2: $i] :
        ! [X3: $i > $o] : ( X1 @ X3 @ X2 ) ) ) ).

thf(def_mtrue,definition,
    ( mtrue
    = ( ^ [X1: $i] : $true ) ) ).

thf(def_mfalse,definition,
    ( mfalse
    = ( mnot @ mtrue ) ) ).

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

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

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

thf(def_mequiv,definition,
    ( mequiv
    = ( ^ [X1: $i > $o,X2: $i > $o] : ( mand @ ( mimplies @ X1 @ X2 ) @ ( mimplies @ X2 @ X1 ) ) ) ) ).

thf(def_mxor,definition,
    ( mxor
    = ( ^ [X1: $i > $o,X2: $i > $o] : ( mnot @ ( mequiv @ X1 @ X2 ) ) ) ) ).

thf(def_mdia,definition,
    ( mdia
    = ( ^ [X1: $i > $i > $o,X2: $i > $o] : ( mnot @ ( mbox @ X1 @ ( mnot @ X2 ) ) ) ) ) ).

thf(def_mforall_ind,definition,
    ( mforall_ind
    = ( ^ [X1: mu > $i > $o,X2: $i] :
        ! [X3: mu] :
          ( ^ [X4: $o,X5: $o] :
              ( X4
             => X5 )
          @ ( exists_in_world @ X3 @ X2 )
          @ ( X1 @ X3 @ X2 ) ) ) ) ).

thf(def_mexists_ind,definition,
    ( mexists_ind
    = ( ^ [X1: mu > $i > $o] :
          ( mnot
          @ ( mforall_ind
            @ ^ [X2: mu] : ( mnot @ ( X1 @ X2 ) ) ) ) ) ) ).

thf(def_mexists_prop,definition,
    ( mexists_prop
    = ( ^ [X1: ( $i > $o ) > $i > $o] :
          ( mnot
          @ ( mforall_prop
            @ ^ [X2: $i > $o] : ( mnot @ ( X1 @ X2 ) ) ) ) ) ) ).

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

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

thf(def_mserial,definition,
    ( mserial
    = ( ^ [X1: $i > $i > $o] :
        ! [X2: $i] :
        ? [X3: $i] : ( X1 @ X2 @ X3 ) ) ) ).

thf(def_mtransitive,definition,
    ( mtransitive
    = ( ^ [X1: $i > $i > $o] :
        ! [X2: $i,X3: $i,X4: $i] :
          ( ^ [X5: $o,X6: $o] :
              ( X5
             => X6 )
          @ ( ( X1 @ X2 @ X3 )
            & ( X1 @ X3 @ X4 ) )
          @ ( X1 @ X2 @ X4 ) ) ) ) ).

thf(def_meuclidean,definition,
    ( meuclidean
    = ( ^ [X1: $i > $i > $o] :
        ! [X2: $i,X3: $i,X4: $i] :
          ( ^ [X5: $o,X6: $o] :
              ( X5
             => X6 )
          @ ( ( X1 @ X2 @ X3 )
            & ( X1 @ X2 @ X4 ) )
          @ ( X1 @ X3 @ X4 ) ) ) ) ).

thf(def_mpartially_functional,definition,
    ( mpartially_functional
    = ( ^ [X1: $i > $i > $o] :
        ! [X2: $i,X3: $i,X4: $i] :
          ( ^ [X5: $o,X6: $o] :
              ( X5
             => X6 )
          @ ( ( X1 @ X2 @ X3 )
            & ( X1 @ X2 @ X4 ) )
          @ ( X3 = X4 ) ) ) ) ).

thf(def_mfunctional,definition,
    ( mfunctional
    = ( ^ [X1: $i > $i > $o] :
        ! [X2: $i] :
        ? [X3: $i] :
          ( ( X1 @ X2 @ X3 )
          & ! [X4: $i] :
              ( ^ [X5: $o,X6: $o] :
                  ( X5
                 => X6 )
              @ ( X1 @ X2 @ X4 )
              @ ( X3 = X4 ) ) ) ) ) ).

thf(def_mweakly_dense,definition,
    ( mweakly_dense
    = ( ^ [X1: $i > $i > $o] :
        ! [X2: $i,X3: $i,X4: $i] :
          ( ^ [X5: $o,X6: $o] :
              ( X5
             => X6 )
          @ ( X1 @ X2 @ X3 )
          @ ? [X5: $i] :
              ( ( X1 @ X2 @ X5 )
              & ( X1 @ X5 @ X3 ) ) ) ) ) ).

thf(def_mweakly_connected,definition,
    ( mweakly_connected
    = ( ^ [X1: $i > $i > $o] :
        ! [X2: $i,X3: $i,X4: $i] :
          ( ^ [X5: $o,X6: $o] :
              ( X5
             => X6 )
          @ ( ( X1 @ X2 @ X3 )
            & ( X1 @ X2 @ X4 ) )
          @ ( ( X1 @ X3 @ X4 )
            | ( X3 = X4 )
            | ( X1 @ X4 @ X3 ) ) ) ) ) ).

thf(def_mweakly_directed,definition,
    ( mweakly_directed
    = ( ^ [X1: $i > $i > $o] :
        ! [X2: $i,X3: $i,X4: $i] :
          ( ^ [X5: $o,X6: $o] :
              ( X5
             => X6 )
          @ ( ( X1 @ X2 @ X3 )
            & ( X1 @ X2 @ X4 ) )
          @ ? [X5: $i] :
              ( ( X1 @ X3 @ X5 )
              & ( X1 @ X4 @ X5 ) ) ) ) ) ).

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

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

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

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

thf(def_mbox_s4,definition,
    ( mbox_s4
    = ( ^ [X1: $i > $o,X2: $i] :
        ! [X3: $i] :
          ( ( (~) @ ( rel_s4 @ X2 @ X3 ) )
          | ( X1 @ X3 ) ) ) ) ).

thf(def_mdia_s4,definition,
    ( mdia_s4
    = ( ^ [X1: $i > $o] : ( mnot @ ( mbox_s4 @ ( mnot @ X1 ) ) ) ) ) ).

thf(con,conjecture,
    ! [X1: $i] :
      ( ~ ! [X2: $i] :
            ( ( rel_s4 @ X1 @ X2 )
           => ~ ! [X3: mu] :
                  ( ( exists_in_world @ X3 @ X2 )
                 => ( f @ X3 @ X2 ) ) )
     => ~ ! [X2: mu] :
            ( ( exists_in_world @ X2 @ X1 )
           => ! [X3: $i] :
                ( ( rel_s4 @ X1 @ X3 )
               => ~ ( f @ X2 @ X3 ) ) ) ) ).

thf(h1,negated_conjecture,
    ~ ! [X1: $i] :
        ( ~ ! [X2: $i] :
              ( ( rel_s4 @ X1 @ X2 )
             => ~ ! [X3: mu] :
                    ( ( exists_in_world @ X3 @ X2 )
                   => ( f @ X3 @ X2 ) ) )
       => ~ ! [X2: mu] :
              ( ( exists_in_world @ X2 @ X1 )
             => ! [X3: $i] :
                  ( ( rel_s4 @ X1 @ X3 )
                 => ~ ( f @ X2 @ X3 ) ) ) ),
    inference(assume_negation,[status(cth)],[con]) ).

thf(h2,assumption,
    ~ ( ~ ! [X1: $i] :
            ( ( rel_s4 @ eigen__0 @ X1 )
           => ~ ! [X2: mu] :
                  ( ( exists_in_world @ X2 @ X1 )
                 => ( f @ X2 @ X1 ) ) )
     => ~ sP6 ),
    introduced(assumption,[]) ).

thf(h3,assumption,
    ~ ! [X1: $i] :
        ( ( rel_s4 @ eigen__0 @ X1 )
       => ~ ! [X2: mu] :
              ( ( exists_in_world @ X2 @ X1 )
             => ( f @ X2 @ X1 ) ) ),
    introduced(assumption,[]) ).

thf(h4,assumption,
    sP6,
    introduced(assumption,[]) ).

thf(h5,assumption,
    ~ ( sP3
     => ~ sP9 ),
    introduced(assumption,[]) ).

thf(h6,assumption,
    sP3,
    introduced(assumption,[]) ).

thf(h7,assumption,
    sP9,
    introduced(assumption,[]) ).

thf(1,plain,
    ( ~ sP12
    | ~ sP11
    | ~ sP3 ),
    inference(prop_rule,[status(thm)],]) ).

thf(2,plain,
    ( ~ sP15
    | sP12
    | sP1 ),
    inference(prop_rule,[status(thm)],]) ).

thf(3,plain,
    ( ~ sP5
    | sP15 ),
    inference(all_rule,[status(thm)],]) ).

thf(4,plain,
    ( ~ sP7
    | sP5 ),
    inference(all_rule,[status(thm)],]) ).

thf(5,plain,
    ( ~ sP16
    | ~ sP3
    | ~ sP8 ),
    inference(prop_rule,[status(thm)],]) ).

thf(6,plain,
    ( ~ sP2
    | sP16 ),
    inference(all_rule,[status(thm)],]) ).

thf(7,plain,
    ( ~ sP4
    | ~ sP11
    | sP2 ),
    inference(prop_rule,[status(thm)],]) ).

thf(8,plain,
    ( ~ sP13
    | ~ sP1
    | sP8 ),
    inference(prop_rule,[status(thm)],]) ).

thf(9,plain,
    ( ~ sP9
    | sP13 ),
    inference(all_rule,[status(thm)],]) ).

thf(10,plain,
    ( ~ sP17
    | sP7 ),
    inference(all_rule,[status(thm)],]) ).

thf(11,plain,
    ( ~ sP6
    | sP4 ),
    inference(all_rule,[status(thm)],]) ).

thf(12,plain,
    ( sP10
    | sP11 ),
    inference(eigen_choice_rule,[status(thm),assumptions([h0])],[h0,eigendef_eigen__2]) ).

thf(13,plain,
    ( ~ sP14
    | ~ sP10 ),
    inference(all_rule,[status(thm)],]) ).

thf(cumulative_ax,axiom,
    sP17 ).

thf(nonempty_ax,axiom,
    sP14 ).

thf(14,plain,
    $false,
    inference(prop_unsat,[status(thm),assumptions([h6,h7,h5,h3,h4,h2,h1,h0])],[1,2,3,4,5,6,7,8,9,10,11,12,13,h6,h7,h4,cumulative_ax,nonempty_ax]) ).

thf(15,plain,
    $false,
    inference(tab_negimp,[status(thm),assumptions([h5,h3,h4,h2,h1,h0]),tab_negimp(discharge,[h6,h7])],[h5,14,h6,h7]) ).

thf(16,plain,
    $false,
    inference(tab_negall,[status(thm),assumptions([h3,h4,h2,h1,h0]),tab_negall(discharge,[h5]),tab_negall(eigenvar,eigen__1)],[h3,15,h5]) ).

thf(17,plain,
    $false,
    inference(tab_negimp,[status(thm),assumptions([h2,h1,h0]),tab_negimp(discharge,[h3,h4])],[h2,16,h3,h4]) ).

thf(18,plain,
    $false,
    inference(tab_negall,[status(thm),assumptions([h1,h0]),tab_negall(discharge,[h2]),tab_negall(eigenvar,eigen__0)],[h1,17,h2]) ).

thf(19,plain,
    $false,
    inference(eigenvar_choice,[status(thm),assumptions([h1]),eigenvar_choice(discharge,[h0])],[18,h0]) ).

thf(0,theorem,
    ! [X1: $i] :
      ( ~ ! [X2: $i] :
            ( ( rel_s4 @ X1 @ X2 )
           => ~ ! [X3: mu] :
                  ( ( exists_in_world @ X3 @ X2 )
                 => ( f @ X3 @ X2 ) ) )
     => ~ ! [X2: mu] :
            ( ( exists_in_world @ X2 @ X1 )
           => ! [X3: $i] :
                ( ( rel_s4 @ X1 @ X3 )
               => ~ ( f @ X2 @ X3 ) ) ) ),
    inference(contra,[status(thm),contra(discharge,[h1])],[18,h1]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem  : SYO572^7 : TPTP v8.1.2. Released v5.5.0.
% 0.00/0.13  % Command  : lash -P picomus -M modes -p tstp -t %d %s
% 0.16/0.34  % Computer : n021.cluster.edu
% 0.16/0.34  % Model    : x86_64 x86_64
% 0.16/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.16/0.34  % Memory   : 8042.1875MB
% 0.16/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.16/0.34  % CPULimit : 300
% 0.16/0.34  % WCLimit  : 300
% 0.16/0.34  % DateTime : Sat Aug 26 05:09:56 EDT 2023
% 0.16/0.34  % CPUTime  : 
% 0.19/0.41  % SZS status Theorem
% 0.19/0.41  % Mode: cade22grackle2xfee4
% 0.19/0.41  % Steps: 147
% 0.19/0.41  % SZS output start Proof
% See solution above
%------------------------------------------------------------------------------