%------------------------------------------------------------------------------
% File     : Satallax---3.5
% Problem  : SYO021^1 : TPTP v8.1.0. Released v3.7.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : satallax -E eprover-ho -P picomus -M modes -p tstp -t %d %s

% Computer : n005.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 : Thu Jul 21 19:29:35 EDT 2022

% Result   : Theorem 0.18s 0.34s
% Output   : Proof 0.18s
% Verified : 
% SZS Type : ERROR: Analysing output (MakeTreeStats fails)

% Comments : 
%------------------------------------------------------------------------------
thf(ty_eigen__1,type,
    eigen__1: $o ).

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

thf(conj,conjecture,
    ! [X1: $o,X2: $o] :
      ( ( ~ ( X1
           => ~ X2 ) )
      = ( ~ ( X1
           => ~ X2 ) ) ) ).

thf(h0,negated_conjecture,
    ~ ! [X1: $o,X2: $o] :
        ( ( ~ ( X1
             => ~ X2 ) )
        = ( ~ ( X1
             => ~ X2 ) ) ),
    inference(assume_negation,[status(cth)],[conj]) ).

thf(h1,assumption,
    ~ ! [X1: $o] :
        ( ( ~ ( eigen__0
             => ~ X1 ) )
        = ( ~ ( eigen__0
             => ~ X1 ) ) ),
    introduced(assumption,[]) ).

thf(h2,assumption,
    ( ~ ( eigen__0
       => ~ eigen__1 ) )
 != ( ~ ( eigen__0
       => ~ eigen__1 ) ),
    introduced(assumption,[]) ).

thf(1,plain,
    $false,
    inference(tab_negrefl,[status(thm),assumptions([h2,h1,h0])],[h2]) ).

thf(2,plain,
    $false,
    inference(tab_negall,[status(thm),assumptions([h1,h0]),tab_negall(discharge,[h2]),tab_negall(eigenvar,eigen__1)],[h1,1,h2]) ).

thf(3,plain,
    $false,
    inference(tab_negall,[status(thm),assumptions([h0]),tab_negall(discharge,[h1]),tab_negall(eigenvar,eigen__0)],[h0,2,h1]) ).

thf(0,theorem,
    ! [X1: $o,X2: $o] :
      ( ( ~ ( X1
           => ~ X2 ) )
      = ( ~ ( X1
           => ~ X2 ) ) ),
    inference(contra,[status(thm),contra(discharge,[h0])],[3,h0]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.11  % Problem  : SYO021^1 : TPTP v8.1.0. Released v3.7.0.
% 0.03/0.12  % Command  : satallax -E eprover-ho -P picomus -M modes -p tstp -t %d %s
% 0.12/0.33  % Computer : n005.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 : Sat Jul  9 02:42:22 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 0.18/0.34  % SZS status Theorem
% 0.18/0.34  % Mode: mode213
% 0.18/0.34  % Inferences: 0
% 0.18/0.34  % SZS output start Proof
% See solution above
%------------------------------------------------------------------------------