TSTP Solution File: SEV434^1 by Lash---1.13

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%------------------------------------------------------------------------------
% File     : Lash---1.13
% Problem  : SEV434^1 : TPTP v8.1.2. Released v5.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : lash -P picomus -M modes -p tstp -t %d %s

% Computer : n007.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 19:34:33 EDT 2023

% Result   : Theorem 0.20s 0.63s
% Output   : Proof 0.20s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    8
%            Number of leaves      :   62
% Syntax   : Number of formulae    :   74 (  16 unt;   7 typ;   3 def)
%            Number of atoms       :  169 (  39 equ;   0 cnn)
%            Maximal formula atoms :    4 (   2 avg)
%            Number of connectives :  162 (  61   ~;  39   |;   0   &;  25   @)
%                                         (  23 <=>;  14  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    9 (   3 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    2 (   2   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   33 (  31 usr;  31 con; 0-2 aty)
%            Number of variables   :   22 (   3   ^;  19   !;   0   ?;  22   :)

% Comments : 
%------------------------------------------------------------------------------
thf(ty_eigen__0,type,
    eigen__0: $i ).

thf(ty_eigen__5,type,
    eigen__5: $o ).

thf(ty_eigen__3,type,
    eigen__3: $o ).

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

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

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

thf(ty_eigen__2,type,
    eigen__2: $i ).

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

thf(eigendef_eigen__3,definition,
    ( eigen__3
    = ( eps__0
      @ ^ [X1: $o] :
          ( ( f @ X1 )
         != eigen__1 ) ) ),
    introduced(definition,[new_symbols(definition,[eigen__3])]) ).

thf(eigendef_eigen__4,definition,
    ( eigen__4
    = ( eps__0
      @ ^ [X1: $o] :
          ( ( f @ X1 )
         != eigen__2 ) ) ),
    introduced(definition,[new_symbols(definition,[eigen__4])]) ).

thf(eigendef_eigen__5,definition,
    ( eigen__5
    = ( eps__0
      @ ^ [X1: $o] :
          ( ( f @ X1 )
         != eigen__0 ) ) ),
    introduced(definition,[new_symbols(definition,[eigen__5])]) ).

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

thf(sP2,plain,
    ( sP2
  <=> ( ( f @ eigen__4 )
      = ( f @ eigen__3 ) ) ),
    introduced(definition,[new_symbols(definition,[sP2])]) ).

thf(sP3,plain,
    ( sP3
  <=> ( eigen__4 = eigen__3 ) ),
    introduced(definition,[new_symbols(definition,[sP3])]) ).

thf(sP4,plain,
    ( sP4
  <=> ! [X1: $o] :
        ( ( f @ X1 )
       != eigen__2 ) ),
    introduced(definition,[new_symbols(definition,[sP4])]) ).

thf(sP5,plain,
    ( sP5
  <=> ( ( f @ eigen__5 )
      = ( f @ eigen__4 ) ) ),
    introduced(definition,[new_symbols(definition,[sP5])]) ).

thf(sP6,plain,
    ( sP6
  <=> ( ( f @ eigen__5 )
      = eigen__0 ) ),
    introduced(definition,[new_symbols(definition,[sP6])]) ).

thf(sP7,plain,
    ( sP7
  <=> eigen__5 ),
    introduced(definition,[new_symbols(definition,[sP7])]) ).

thf(sP8,plain,
    ( sP8
  <=> ! [X1: $o] :
        ( ( f @ X1 )
       != eigen__1 ) ),
    introduced(definition,[new_symbols(definition,[sP8])]) ).

thf(sP9,plain,
    ( sP9
  <=> eigen__3 ),
    introduced(definition,[new_symbols(definition,[sP9])]) ).

thf(sP10,plain,
    ( sP10
  <=> ( ( f @ sP7 )
      = ( f @ sP9 ) ) ),
    introduced(definition,[new_symbols(definition,[sP10])]) ).

thf(sP11,plain,
    ( sP11
  <=> ( ( f @ sP9 )
      = eigen__1 ) ),
    introduced(definition,[new_symbols(definition,[sP11])]) ).

thf(sP12,plain,
    ( sP12
  <=> ( ( f @ eigen__4 )
      = eigen__0 ) ),
    introduced(definition,[new_symbols(definition,[sP12])]) ).

thf(sP13,plain,
    ( sP13
  <=> ( sP7 = sP9 ) ),
    introduced(definition,[new_symbols(definition,[sP13])]) ).

thf(sP14,plain,
    ( sP14
  <=> $false ),
    introduced(definition,[new_symbols(definition,[sP14])]) ).

thf(sP15,plain,
    ( sP15
  <=> ! [X1: $o] :
        ( ( f @ X1 )
       != eigen__0 ) ),
    introduced(definition,[new_symbols(definition,[sP15])]) ).

thf(sP16,plain,
    ( sP16
  <=> ( ( f @ sP9 )
      = eigen__0 ) ),
    introduced(definition,[new_symbols(definition,[sP16])]) ).

thf(sP17,plain,
    ( sP17
  <=> eigen__4 ),
    introduced(definition,[new_symbols(definition,[sP17])]) ).

thf(sP18,plain,
    ( sP18
  <=> ( eigen__0 = eigen__2 ) ),
    introduced(definition,[new_symbols(definition,[sP18])]) ).

thf(sP19,plain,
    ( sP19
  <=> ! [X1: $i] :
        ~ ! [X2: $o] :
            ( ( f @ X2 )
           != X1 ) ),
    introduced(definition,[new_symbols(definition,[sP19])]) ).

thf(sP20,plain,
    ( sP20
  <=> ( ( f @ sP17 )
      = eigen__2 ) ),
    introduced(definition,[new_symbols(definition,[sP20])]) ).

thf(sP21,plain,
    ( sP21
  <=> ( ( f @ sP9 )
      = eigen__2 ) ),
    introduced(definition,[new_symbols(definition,[sP21])]) ).

thf(sP22,plain,
    ( sP22
  <=> ( eigen__0 = eigen__1 ) ),
    introduced(definition,[new_symbols(definition,[sP22])]) ).

thf(sP23,plain,
    ( sP23
  <=> ( sP7 = sP17 ) ),
    introduced(definition,[new_symbols(definition,[sP23])]) ).

thf(less3,conjecture,
    ! [X1: $i,X2: $i,X3: $i] :
      ( ~ ( ( X1 != X2 )
         => ( X1 = X3 ) )
     => ( X2 = X3 ) ) ).

thf(h1,negated_conjecture,
    ~ ! [X1: $i,X2: $i,X3: $i] :
        ( ~ ( ( X1 != X2 )
           => ( X1 = X3 ) )
       => ( X2 = X3 ) ),
    inference(assume_negation,[status(cth)],[less3]) ).

thf(h2,assumption,
    ~ ! [X1: $i,X2: $i] :
        ( ~ ( ( eigen__0 != X1 )
           => ( eigen__0 = X2 ) )
       => ( X1 = X2 ) ),
    introduced(assumption,[]) ).

thf(h3,assumption,
    ~ ! [X1: $i] :
        ( ~ ( ~ sP22
           => ( eigen__0 = X1 ) )
       => ( eigen__1 = X1 ) ),
    introduced(assumption,[]) ).

thf(h4,assumption,
    ~ ( ~ ( ~ sP22
         => sP18 )
     => sP1 ),
    introduced(assumption,[]) ).

thf(h5,assumption,
    ~ ( ~ sP22
     => sP18 ),
    introduced(assumption,[]) ).

thf(h6,assumption,
    ~ sP1,
    introduced(assumption,[]) ).

thf(h7,assumption,
    ~ sP22,
    introduced(assumption,[]) ).

thf(h8,assumption,
    ~ sP18,
    introduced(assumption,[]) ).

thf(1,plain,
    ( sP23
    | ~ sP7
    | ~ sP17 ),
    inference(prop_rule,[status(thm)],]) ).

thf(2,plain,
    ( sP23
    | sP7
    | sP17 ),
    inference(prop_rule,[status(thm)],]) ).

thf(3,plain,
    ( sP5
    | ~ sP23 ),
    inference(prop_rule,[status(thm)],]) ).

thf(4,plain,
    ( ~ sP6
    | sP12
    | ~ sP5
    | sP14 ),
    inference(confrontation_rule,[status(thm)],]) ).

thf(5,plain,
    ( ~ sP20
    | sP21
    | ~ sP2
    | sP14 ),
    inference(confrontation_rule,[status(thm)],]) ).

thf(6,plain,
    ( sP3
    | ~ sP17
    | ~ sP9 ),
    inference(prop_rule,[status(thm)],]) ).

thf(7,plain,
    ( sP3
    | sP17
    | sP9 ),
    inference(prop_rule,[status(thm)],]) ).

thf(8,plain,
    ( sP2
    | ~ sP3 ),
    inference(prop_rule,[status(thm)],]) ).

thf(9,plain,
    ( sP13
    | ~ sP7
    | ~ sP9 ),
    inference(prop_rule,[status(thm)],]) ).

thf(10,plain,
    ( sP13
    | sP7
    | sP9 ),
    inference(prop_rule,[status(thm)],]) ).

thf(11,plain,
    ( sP10
    | ~ sP13 ),
    inference(prop_rule,[status(thm)],]) ).

thf(12,plain,
    ( ~ sP6
    | sP16
    | ~ sP10
    | ~ sP6 ),
    inference(confrontation_rule,[status(thm)],]) ).

thf(13,plain,
    ( ~ sP20
    | sP18
    | ~ sP12
    | ~ sP20 ),
    inference(confrontation_rule,[status(thm)],]) ).

thf(14,plain,
    ~ sP14,
    inference(prop_rule,[status(thm)],]) ).

thf(15,plain,
    ( ~ sP11
    | sP1
    | ~ sP11
    | ~ sP21 ),
    inference(confrontation_rule,[status(thm)],]) ).

thf(16,plain,
    ( ~ sP11
    | sP22
    | ~ sP16
    | ~ sP11 ),
    inference(confrontation_rule,[status(thm)],]) ).

thf(17,plain,
    ( sP15
    | sP6 ),
    inference(eigen_choice_rule,[status(thm),assumptions([h0])],[h0,eigendef_eigen__5]) ).

thf(18,plain,
    ( ~ sP19
    | ~ sP15 ),
    inference(all_rule,[status(thm)],]) ).

thf(19,plain,
    ( sP4
    | sP20 ),
    inference(eigen_choice_rule,[status(thm),assumptions([h0])],[h0,eigendef_eigen__4]) ).

thf(20,plain,
    ( ~ sP19
    | ~ sP4 ),
    inference(all_rule,[status(thm)],]) ).

thf(21,plain,
    ( sP8
    | sP11 ),
    inference(eigen_choice_rule,[status(thm),assumptions([h0])],[h0,eigendef_eigen__3]) ).

thf(22,plain,
    ( ~ sP19
    | ~ sP8 ),
    inference(all_rule,[status(thm)],]) ).

thf(fsurj,axiom,
    sP19 ).

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

thf(24,plain,
    $false,
    inference(tab_negimp,[status(thm),assumptions([h5,h6,h4,h3,h2,h1,h0]),tab_negimp(discharge,[h7,h8])],[h5,23,h7,h8]) ).

thf(25,plain,
    $false,
    inference(tab_negimp,[status(thm),assumptions([h4,h3,h2,h1,h0]),tab_negimp(discharge,[h5,h6])],[h4,24,h5,h6]) ).

thf(26,plain,
    $false,
    inference(tab_negall,[status(thm),assumptions([h3,h2,h1,h0]),tab_negall(discharge,[h4]),tab_negall(eigenvar,eigen__2)],[h3,25,h4]) ).

thf(27,plain,
    $false,
    inference(tab_negall,[status(thm),assumptions([h2,h1,h0]),tab_negall(discharge,[h3]),tab_negall(eigenvar,eigen__1)],[h2,26,h3]) ).

thf(28,plain,
    $false,
    inference(tab_negall,[status(thm),assumptions([h1,h0]),tab_negall(discharge,[h2]),tab_negall(eigenvar,eigen__0)],[h1,27,h2]) ).

thf(29,plain,
    $false,
    inference(eigenvar_choice,[status(thm),assumptions([h1]),eigenvar_choice(discharge,[h0])],[28,h0]) ).

thf(0,theorem,
    ! [X1: $i,X2: $i,X3: $i] :
      ( ~ ( ( X1 != X2 )
         => ( X1 = X3 ) )
     => ( X2 = X3 ) ),
    inference(contra,[status(thm),contra(discharge,[h1])],[28,h1]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : SEV434^1 : TPTP v8.1.2. Released v5.2.0.
% 0.12/0.13  % Command  : lash -P picomus -M modes -p tstp -t %d %s
% 0.13/0.34  % Computer : n007.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit : 300
% 0.13/0.34  % WCLimit  : 300
% 0.13/0.34  % DateTime : Thu Aug 24 02:06:39 EDT 2023
% 0.13/0.34  % CPUTime  : 
% 0.20/0.63  % SZS status Theorem
% 0.20/0.63  % Mode: cade22grackle2xfee4
% 0.20/0.63  % Steps: 1962
% 0.20/0.63  % SZS output start Proof
% See solution above
%------------------------------------------------------------------------------