TSTP Solution File: LCL956^18 by Satallax---3.5

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Satallax---3.5
% Problem  : LCL956^18 : TPTP v8.1.0. Released v8.1.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : satallax -E eprover-ho -P picomus -M modes -p tstp -t %d %s

% Computer : n020.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  : 600s
% DateTime : Sun Jul 17 14:12:11 EDT 2022

% Result   : Theorem 0.12s 0.37s
% Output   : Proof 0.12s
% Verified : 
% SZS Type : ERROR: Analysing output (MakeTreeStats fails)

% Comments : 
%------------------------------------------------------------------------------
thf(ty_mworld,type,
    mworld: $tType ).

thf(ty_p,type,
    p: mworld > $o ).

thf(ty_eiw_di,type,
    eiw_di: $i > mworld > $o ).

thf(ty_eigen__2,type,
    eigen__2: mworld ).

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

thf(ty_eigen__0,type,
    eigen__0: mworld ).

thf(ty_eigen__4,type,
    eigen__4: $i ).

thf(ty_mrel,type,
    mrel: mworld > mworld > $o ).

thf(ty_eigen__3,type,
    eigen__3: mworld ).

thf(ty_big_q,type,
    big_q: $i > mworld > $o ).

thf(ty_mactual,type,
    mactual: mworld ).

thf(sP1,plain,
    ( sP1
  <=> ( ! [X1: mworld] :
          ( ( mrel @ eigen__3 @ X1 )
         => ( p @ X1 ) )
     => ~ ! [X1: mworld] :
            ( ( mrel @ eigen__3 @ X1 )
           => ( big_q @ eigen__4 @ X1 ) ) ) ),
    introduced(definition,[new_symbols(definition,[sP1])]) ).

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

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

thf(sP4,plain,
    ( sP4
  <=> ( eiw_di @ eigen__4 @ eigen__3 ) ),
    introduced(definition,[new_symbols(definition,[sP4])]) ).

thf(sP5,plain,
    ( sP5
  <=> ! [X1: $i] :
        ( ( eiw_di @ X1 @ eigen__0 )
       => ~ ! [X2: mworld] :
              ( ( mrel @ eigen__0 @ X2 )
             => ( big_q @ X1 @ X2 ) ) ) ),
    introduced(definition,[new_symbols(definition,[sP5])]) ).

thf(sP6,plain,
    ( sP6
  <=> ( sP4
     => sP1 ) ),
    introduced(definition,[new_symbols(definition,[sP6])]) ).

thf(sP7,plain,
    ( sP7
  <=> ! [X1: mworld] :
        ( ( mrel @ eigen__3 @ X1 )
       => ( big_q @ eigen__4 @ X1 ) ) ),
    introduced(definition,[new_symbols(definition,[sP7])]) ).

thf(sP8,plain,
    ( sP8
  <=> ! [X1: mworld] :
        ( ( mrel @ eigen__0 @ X1 )
       => ( big_q @ eigen__1 @ X1 ) ) ),
    introduced(definition,[new_symbols(definition,[sP8])]) ).

thf(sP9,plain,
    ( sP9
  <=> ( p @ eigen__2 ) ),
    introduced(definition,[new_symbols(definition,[sP9])]) ).

thf(sP10,plain,
    ( sP10
  <=> ( sP2
     => sP9 ) ),
    introduced(definition,[new_symbols(definition,[sP10])]) ).

thf(sP11,plain,
    ( sP11
  <=> ! [X1: $i] :
        ( ( eiw_di @ X1 @ eigen__3 )
       => ( ! [X2: mworld] :
              ( ( mrel @ eigen__3 @ X2 )
             => ( p @ X2 ) )
         => ~ ! [X2: mworld] :
                ( ( mrel @ eigen__3 @ X2 )
               => ( big_q @ X1 @ X2 ) ) ) ) ),
    introduced(definition,[new_symbols(definition,[sP11])]) ).

thf(sP12,plain,
    ( sP12
  <=> ( sP3
     => ~ sP8 ) ),
    introduced(definition,[new_symbols(definition,[sP12])]) ).

thf(sP13,plain,
    ( sP13
  <=> ! [X1: mworld] :
        ( ( mrel @ eigen__0 @ X1 )
       => ( p @ X1 ) ) ),
    introduced(definition,[new_symbols(definition,[sP13])]) ).

thf(sP14,plain,
    ( sP14
  <=> ! [X1: mworld] :
        ( ( mrel @ eigen__3 @ X1 )
       => ( p @ X1 ) ) ),
    introduced(definition,[new_symbols(definition,[sP14])]) ).

thf(def_mlocal,definition,
    ( mlocal
    = ( ^ [X1: mworld > $o] : ( X1 @ mactual ) ) ) ).

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

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

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

thf(def_mimplies,definition,
    ( mimplies
    = ( ^ [X1: mworld > $o,X2: mworld > $o,X3: mworld] :
          ( ( X1 @ X3 )
         => ( X2 @ X3 ) ) ) ) ).

thf(def_mequiv,definition,
    ( mequiv
    = ( ^ [X1: mworld > $o,X2: mworld > $o,X3: mworld] :
          ( ( X1 @ X3 )
          = ( X2 @ X3 ) ) ) ) ).

thf(def_mbox,definition,
    ( mbox
    = ( ^ [X1: mworld > $o,X2: mworld] :
        ! [X3: mworld] :
          ( ( mrel @ X2 @ X3 )
         => ( X1 @ X3 ) ) ) ) ).

thf(def_mdia,definition,
    ( mdia
    = ( ^ [X1: mworld > $o,X2: mworld] :
          ~ ! [X3: mworld] :
              ( ( mrel @ X2 @ X3 )
             => ~ ( X1 @ X3 ) ) ) ) ).

thf(def_mforall_di,definition,
    ( mforall_di
    = ( ^ [X1: $i > mworld > $o,X2: mworld] :
        ! [X3: $i] :
          ( ( eiw_di @ X3 @ X2 )
         => ( X1 @ X3 @ X2 ) ) ) ) ).

thf(def_mexists_di,definition,
    ( mexists_di
    = ( ^ [X1: $i > mworld > $o,X2: mworld] :
          ~ ! [X3: $i] :
              ( ( eiw_di @ X3 @ X2 )
             => ~ ( X1 @ X3 @ X2 ) ) ) ) ).

thf(x2109,conjecture,
    ~ ( ! [X1: mworld] :
          ( ( mrel @ mactual @ X1 )
         => ( ~ ! [X2: $i] :
                  ( ( eiw_di @ X2 @ X1 )
                 => ~ ~ ( ! [X3: mworld] :
                            ( ( mrel @ X1 @ X3 )
                           => ( p @ X3 ) )
                       => ~ ! [X3: mworld] :
                              ( ( mrel @ X1 @ X3 )
                             => ( big_q @ X2 @ X3 ) ) ) )
           => ~ ( ! [X2: mworld] :
                    ( ( mrel @ X1 @ X2 )
                   => ( p @ X2 ) )
               => ~ ~ ! [X2: $i] :
                        ( ( eiw_di @ X2 @ X1 )
                       => ~ ! [X3: mworld] :
                              ( ( mrel @ X1 @ X3 )
                             => ( big_q @ X2 @ X3 ) ) ) ) ) )
     => ~ ! [X1: mworld] :
            ( ( mrel @ mactual @ X1 )
           => ( ~ ( ! [X2: mworld] :
                      ( ( mrel @ X1 @ X2 )
                     => ( p @ X2 ) )
                 => ~ ~ ! [X2: $i] :
                          ( ( eiw_di @ X2 @ X1 )
                         => ~ ! [X3: mworld] :
                                ( ( mrel @ X1 @ X3 )
                               => ( big_q @ X2 @ X3 ) ) ) )
             => ~ ! [X2: $i] :
                    ( ( eiw_di @ X2 @ X1 )
                   => ~ ~ ( ! [X3: mworld] :
                              ( ( mrel @ X1 @ X3 )
                             => ( p @ X3 ) )
                         => ~ ! [X3: mworld] :
                                ( ( mrel @ X1 @ X3 )
                               => ( big_q @ X2 @ X3 ) ) ) ) ) ) ) ).

thf(h0,negated_conjecture,
    ( ! [X1: mworld] :
        ( ( mrel @ mactual @ X1 )
       => ( ~ ! [X2: $i] :
                ( ( eiw_di @ X2 @ X1 )
               => ( ! [X3: mworld] :
                      ( ( mrel @ X1 @ X3 )
                     => ( p @ X3 ) )
                 => ~ ! [X3: mworld] :
                        ( ( mrel @ X1 @ X3 )
                       => ( big_q @ X2 @ X3 ) ) ) )
         => ~ ( ! [X2: mworld] :
                  ( ( mrel @ X1 @ X2 )
                 => ( p @ X2 ) )
             => ! [X2: $i] :
                  ( ( eiw_di @ X2 @ X1 )
                 => ~ ! [X3: mworld] :
                        ( ( mrel @ X1 @ X3 )
                       => ( big_q @ X2 @ X3 ) ) ) ) ) )
   => ~ ! [X1: mworld] :
          ( ( mrel @ mactual @ X1 )
         => ( ~ ( ! [X2: mworld] :
                    ( ( mrel @ X1 @ X2 )
                   => ( p @ X2 ) )
               => ! [X2: $i] :
                    ( ( eiw_di @ X2 @ X1 )
                   => ~ ! [X3: mworld] :
                          ( ( mrel @ X1 @ X3 )
                         => ( big_q @ X2 @ X3 ) ) ) )
           => ~ ! [X2: $i] :
                  ( ( eiw_di @ X2 @ X1 )
                 => ( ! [X3: mworld] :
                        ( ( mrel @ X1 @ X3 )
                       => ( p @ X3 ) )
                   => ~ ! [X3: mworld] :
                          ( ( mrel @ X1 @ X3 )
                         => ( big_q @ X2 @ X3 ) ) ) ) ) ) ),
    inference(assume_negation,[status(cth)],[x2109]) ).

thf(h1,assumption,
    ~ ! [X1: mworld] :
        ( ( mrel @ mactual @ X1 )
       => ( ~ ! [X2: $i] :
                ( ( eiw_di @ X2 @ X1 )
               => ( ! [X3: mworld] :
                      ( ( mrel @ X1 @ X3 )
                     => ( p @ X3 ) )
                 => ~ ! [X3: mworld] :
                        ( ( mrel @ X1 @ X3 )
                       => ( big_q @ X2 @ X3 ) ) ) )
         => ~ ( ! [X2: mworld] :
                  ( ( mrel @ X1 @ X2 )
                 => ( p @ X2 ) )
             => ! [X2: $i] :
                  ( ( eiw_di @ X2 @ X1 )
                 => ~ ! [X3: mworld] :
                        ( ( mrel @ X1 @ X3 )
                       => ( big_q @ X2 @ X3 ) ) ) ) ) ),
    introduced(assumption,[]) ).

thf(h2,assumption,
    ~ ! [X1: mworld] :
        ( ( mrel @ mactual @ X1 )
       => ( ~ ( ! [X2: mworld] :
                  ( ( mrel @ X1 @ X2 )
                 => ( p @ X2 ) )
             => ! [X2: $i] :
                  ( ( eiw_di @ X2 @ X1 )
                 => ~ ! [X3: mworld] :
                        ( ( mrel @ X1 @ X3 )
                       => ( big_q @ X2 @ X3 ) ) ) )
         => ~ ! [X2: $i] :
                ( ( eiw_di @ X2 @ X1 )
               => ( ! [X3: mworld] :
                      ( ( mrel @ X1 @ X3 )
                     => ( p @ X3 ) )
                 => ~ ! [X3: mworld] :
                        ( ( mrel @ X1 @ X3 )
                       => ( big_q @ X2 @ X3 ) ) ) ) ) ),
    introduced(assumption,[]) ).

thf(h3,assumption,
    ~ ( ( mrel @ mactual @ eigen__0 )
     => ( ~ ! [X1: $i] :
              ( ( eiw_di @ X1 @ eigen__0 )
             => ( sP13
               => ~ ! [X2: mworld] :
                      ( ( mrel @ eigen__0 @ X2 )
                     => ( big_q @ X1 @ X2 ) ) ) )
       => ~ ( sP13
           => sP5 ) ) ),
    introduced(assumption,[]) ).

thf(h4,assumption,
    mrel @ mactual @ eigen__0,
    introduced(assumption,[]) ).

thf(h5,assumption,
    ~ ( ~ ! [X1: $i] :
            ( ( eiw_di @ X1 @ eigen__0 )
           => ( sP13
             => ~ ! [X2: mworld] :
                    ( ( mrel @ eigen__0 @ X2 )
                   => ( big_q @ X1 @ X2 ) ) ) )
     => ~ ( sP13
         => sP5 ) ),
    introduced(assumption,[]) ).

thf(h6,assumption,
    ~ ! [X1: $i] :
        ( ( eiw_di @ X1 @ eigen__0 )
       => ( sP13
         => ~ ! [X2: mworld] :
                ( ( mrel @ eigen__0 @ X2 )
               => ( big_q @ X1 @ X2 ) ) ) ),
    introduced(assumption,[]) ).

thf(h7,assumption,
    ( sP13
   => sP5 ),
    introduced(assumption,[]) ).

thf(h8,assumption,
    ~ ( sP3
     => ( sP13
       => ~ sP8 ) ),
    introduced(assumption,[]) ).

thf(h9,assumption,
    sP3,
    introduced(assumption,[]) ).

thf(h10,assumption,
    ~ ( sP13
     => ~ sP8 ),
    introduced(assumption,[]) ).

thf(h11,assumption,
    sP13,
    introduced(assumption,[]) ).

thf(h12,assumption,
    sP8,
    introduced(assumption,[]) ).

thf(h13,assumption,
    ~ sP13,
    introduced(assumption,[]) ).

thf(h14,assumption,
    sP5,
    introduced(assumption,[]) ).

thf(h15,assumption,
    ~ sP10,
    introduced(assumption,[]) ).

thf(h16,assumption,
    sP2,
    introduced(assumption,[]) ).

thf(h17,assumption,
    ~ sP9,
    introduced(assumption,[]) ).

thf(1,plain,
    ( ~ sP13
    | sP10 ),
    inference(all_rule,[status(thm)],]) ).

thf(2,plain,
    ( ~ sP10
    | ~ sP2
    | sP9 ),
    inference(prop_rule,[status(thm)],]) ).

thf(3,plain,
    $false,
    inference(prop_unsat,[status(thm),assumptions([h16,h17,h15,h13,h11,h12,h9,h10,h8,h6,h7,h4,h5,h3,h1,h0])],[1,2,h11,h16,h17]) ).

thf(4,plain,
    $false,
    inference(tab_negimp,[status(thm),assumptions([h15,h13,h11,h12,h9,h10,h8,h6,h7,h4,h5,h3,h1,h0]),tab_negimp(discharge,[h16,h17])],[h15,3,h16,h17]) ).

thf(5,plain,
    $false,
    inference(tab_negall,[status(thm),assumptions([h13,h11,h12,h9,h10,h8,h6,h7,h4,h5,h3,h1,h0]),tab_negall(discharge,[h15]),tab_negall(eigenvar,eigen__2)],[h13,4,h15]) ).

thf(6,plain,
    ( ~ sP5
    | sP12 ),
    inference(all_rule,[status(thm)],]) ).

thf(7,plain,
    ( ~ sP12
    | ~ sP3
    | ~ sP8 ),
    inference(prop_rule,[status(thm)],]) ).

thf(8,plain,
    $false,
    inference(prop_unsat,[status(thm),assumptions([h14,h11,h12,h9,h10,h8,h6,h7,h4,h5,h3,h1,h0])],[6,7,h9,h12,h14]) ).

thf(9,plain,
    $false,
    inference(tab_imp,[status(thm),assumptions([h11,h12,h9,h10,h8,h6,h7,h4,h5,h3,h1,h0]),tab_imp(discharge,[h13]),tab_imp(discharge,[h14])],[h7,5,8,h13,h14]) ).

thf(10,plain,
    $false,
    inference(tab_negimp,[status(thm),assumptions([h9,h10,h8,h6,h7,h4,h5,h3,h1,h0]),tab_negimp(discharge,[h11,h12])],[h10,9,h11,h12]) ).

thf(11,plain,
    $false,
    inference(tab_negimp,[status(thm),assumptions([h8,h6,h7,h4,h5,h3,h1,h0]),tab_negimp(discharge,[h9,h10])],[h8,10,h9,h10]) ).

thf(12,plain,
    $false,
    inference(tab_negall,[status(thm),assumptions([h6,h7,h4,h5,h3,h1,h0]),tab_negall(discharge,[h8]),tab_negall(eigenvar,eigen__1)],[h6,11,h8]) ).

thf(13,plain,
    $false,
    inference(tab_negimp,[status(thm),assumptions([h4,h5,h3,h1,h0]),tab_negimp(discharge,[h6,h7])],[h5,12,h6,h7]) ).

thf(14,plain,
    $false,
    inference(tab_negimp,[status(thm),assumptions([h3,h1,h0]),tab_negimp(discharge,[h4,h5])],[h3,13,h4,h5]) ).

thf(15,plain,
    $false,
    inference(tab_negall,[status(thm),assumptions([h1,h0]),tab_negall(discharge,[h3]),tab_negall(eigenvar,eigen__0)],[h1,14,h3]) ).

thf(h18,assumption,
    ~ ( ( mrel @ mactual @ eigen__3 )
     => ( ~ ( sP14
           => ! [X1: $i] :
                ( ( eiw_di @ X1 @ eigen__3 )
               => ~ ! [X2: mworld] :
                      ( ( mrel @ eigen__3 @ X2 )
                     => ( big_q @ X1 @ X2 ) ) ) )
       => ~ sP11 ) ),
    introduced(assumption,[]) ).

thf(h19,assumption,
    mrel @ mactual @ eigen__3,
    introduced(assumption,[]) ).

thf(h20,assumption,
    ~ ( ~ ( sP14
         => ! [X1: $i] :
              ( ( eiw_di @ X1 @ eigen__3 )
             => ~ ! [X2: mworld] :
                    ( ( mrel @ eigen__3 @ X2 )
                   => ( big_q @ X1 @ X2 ) ) ) )
     => ~ sP11 ),
    introduced(assumption,[]) ).

thf(h21,assumption,
    ~ ( sP14
     => ! [X1: $i] :
          ( ( eiw_di @ X1 @ eigen__3 )
         => ~ ! [X2: mworld] :
                ( ( mrel @ eigen__3 @ X2 )
               => ( big_q @ X1 @ X2 ) ) ) ),
    introduced(assumption,[]) ).

thf(h22,assumption,
    sP11,
    introduced(assumption,[]) ).

thf(h23,assumption,
    sP14,
    introduced(assumption,[]) ).

thf(h24,assumption,
    ~ ! [X1: $i] :
        ( ( eiw_di @ X1 @ eigen__3 )
       => ~ ! [X2: mworld] :
              ( ( mrel @ eigen__3 @ X2 )
             => ( big_q @ X1 @ X2 ) ) ),
    introduced(assumption,[]) ).

thf(h25,assumption,
    ~ ( sP4
     => ~ sP7 ),
    introduced(assumption,[]) ).

thf(h26,assumption,
    sP4,
    introduced(assumption,[]) ).

thf(h27,assumption,
    sP7,
    introduced(assumption,[]) ).

thf(16,plain,
    ( ~ sP11
    | sP6 ),
    inference(all_rule,[status(thm)],]) ).

thf(17,plain,
    ( ~ sP6
    | ~ sP4
    | sP1 ),
    inference(prop_rule,[status(thm)],]) ).

thf(18,plain,
    ( ~ sP1
    | ~ sP14
    | ~ sP7 ),
    inference(prop_rule,[status(thm)],]) ).

thf(19,plain,
    $false,
    inference(prop_unsat,[status(thm),assumptions([h26,h27,h25,h23,h24,h21,h22,h19,h20,h18,h2,h0])],[16,17,18,h23,h26,h27,h22]) ).

thf(20,plain,
    $false,
    inference(tab_negimp,[status(thm),assumptions([h25,h23,h24,h21,h22,h19,h20,h18,h2,h0]),tab_negimp(discharge,[h26,h27])],[h25,19,h26,h27]) ).

thf(21,plain,
    $false,
    inference(tab_negall,[status(thm),assumptions([h23,h24,h21,h22,h19,h20,h18,h2,h0]),tab_negall(discharge,[h25]),tab_negall(eigenvar,eigen__4)],[h24,20,h25]) ).

thf(22,plain,
    $false,
    inference(tab_negimp,[status(thm),assumptions([h21,h22,h19,h20,h18,h2,h0]),tab_negimp(discharge,[h23,h24])],[h21,21,h23,h24]) ).

thf(23,plain,
    $false,
    inference(tab_negimp,[status(thm),assumptions([h19,h20,h18,h2,h0]),tab_negimp(discharge,[h21,h22])],[h20,22,h21,h22]) ).

thf(24,plain,
    $false,
    inference(tab_negimp,[status(thm),assumptions([h18,h2,h0]),tab_negimp(discharge,[h19,h20])],[h18,23,h19,h20]) ).

thf(25,plain,
    $false,
    inference(tab_negall,[status(thm),assumptions([h2,h0]),tab_negall(discharge,[h18]),tab_negall(eigenvar,eigen__3)],[h2,24,h18]) ).

thf(26,plain,
    $false,
    inference(tab_imp,[status(thm),assumptions([h0]),tab_imp(discharge,[h1]),tab_imp(discharge,[h2])],[h0,15,25,h1,h2]) ).

thf(0,theorem,
    ~ ( ! [X1: mworld] :
          ( ( mrel @ mactual @ X1 )
         => ( ~ ! [X2: $i] :
                  ( ( eiw_di @ X2 @ X1 )
                 => ~ ~ ( ! [X3: mworld] :
                            ( ( mrel @ X1 @ X3 )
                           => ( p @ X3 ) )
                       => ~ ! [X3: mworld] :
                              ( ( mrel @ X1 @ X3 )
                             => ( big_q @ X2 @ X3 ) ) ) )
           => ~ ( ! [X2: mworld] :
                    ( ( mrel @ X1 @ X2 )
                   => ( p @ X2 ) )
               => ~ ~ ! [X2: $i] :
                        ( ( eiw_di @ X2 @ X1 )
                       => ~ ! [X3: mworld] :
                              ( ( mrel @ X1 @ X3 )
                             => ( big_q @ X2 @ X3 ) ) ) ) ) )
     => ~ ! [X1: mworld] :
            ( ( mrel @ mactual @ X1 )
           => ( ~ ( ! [X2: mworld] :
                      ( ( mrel @ X1 @ X2 )
                     => ( p @ X2 ) )
                 => ~ ~ ! [X2: $i] :
                          ( ( eiw_di @ X2 @ X1 )
                         => ~ ! [X3: mworld] :
                                ( ( mrel @ X1 @ X3 )
                               => ( big_q @ X2 @ X3 ) ) ) )
             => ~ ! [X2: $i] :
                    ( ( eiw_di @ X2 @ X1 )
                   => ~ ~ ( ! [X3: mworld] :
                              ( ( mrel @ X1 @ X3 )
                             => ( p @ X3 ) )
                         => ~ ! [X3: mworld] :
                                ( ( mrel @ X1 @ X3 )
                               => ( big_q @ X2 @ X3 ) ) ) ) ) ) ),
    inference(contra,[status(thm),contra(discharge,[h0])],[26,h0]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.08/0.12  % Problem  : LCL956^18 : TPTP v8.1.0. Released v8.1.0.
% 0.08/0.12  % Command  : satallax -E eprover-ho -P picomus -M modes -p tstp -t %d %s
% 0.12/0.33  % Computer : n020.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  : 600
% 0.12/0.33  % DateTime : Sun Jul  3 15:16:45 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 0.12/0.37  % SZS status Theorem
% 0.12/0.37  % Mode: mode213
% 0.12/0.37  % Inferences: 7
% 0.12/0.37  % SZS output start Proof
% See solution above
%------------------------------------------------------------------------------