%------------------------------------------------------------------------------
% File : Lash---1.13
% Problem : SEU665^2 : TPTP v9.2.0. Released v3.7.0.
% Transfm : none
% Format : tptp:raw
% Command : lash -P picomus -M modes -p tstp -t %d %s
% Computer : n028.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 Oct 9 02:33:21 PM UTC 2025
% Result : Theorem 31.56s 31.50s
% Output : Proof 31.56s
% Verified :
% SZS Type : ERROR: Analysing output (MakeTreeStats fails)
% Comments :
%------------------------------------------------------------------------------
thf(ty_dsetconstr,type,
dsetconstr: $i > ( $i > $o ) > $i ).
thf(ty_eigen__1,type,
eigen__1: $i ).
thf(ty_kpair,type,
kpair: $i > $i > $i ).
thf(ty_cartprod,type,
cartprod: $i > $i > $i ).
thf(ty_eigen__4,type,
eigen__4: $i ).
thf(ty_eigen__0,type,
eigen__0: $i ).
thf(ty_eigen__2,type,
eigen__2: $i > $i > $o ).
thf(ty_in,type,
in: $i > $i > $o ).
thf(ty_eigen__3,type,
eigen__3: $i ).
thf(sP1,plain,
( sP1
<=> ( eigen__2 @ eigen__3 @ eigen__4 ) ),
introduced(definition,[new_symbols(definition,[sP1])]) ).
thf(sP2,plain,
( sP2
<=> ( ~ ! [X1: $i] :
( ( in @ X1 @ eigen__0 )
=> ! [X2: $i] :
( ~ ( ( in @ X2 @ eigen__1 )
=> ~ ( eigen__2 @ X1 @ X2 ) )
=> ( ( kpair @ eigen__3 @ eigen__4 )
!= ( kpair @ X1 @ X2 ) ) ) )
=> ( in @ ( kpair @ eigen__3 @ eigen__4 )
@ ( dsetconstr @ ( cartprod @ eigen__0 @ eigen__1 )
@ ^ [X1: $i] :
~ ! [X2: $i] :
( ( in @ X2 @ eigen__0 )
=> ! [X3: $i] :
( ~ ( ( in @ X3 @ eigen__1 )
=> ~ ( eigen__2 @ X2 @ X3 ) )
=> ( X1
!= ( kpair @ X2 @ X3 ) ) ) ) ) ) ) ),
introduced(definition,[new_symbols(definition,[sP2])]) ).
thf(sP3,plain,
( sP3
<=> ! [X1: $i,X2: $i > $o,X3: $i] :
( ( in @ X3 @ X1 )
=> ( ( X2 @ X3 )
=> ( in @ X3 @ ( dsetconstr @ X1 @ X2 ) ) ) ) ),
introduced(definition,[new_symbols(definition,[sP3])]) ).
thf(sP4,plain,
( sP4
<=> ! [X1: $i,X2: $i,X3: $i] :
( ( in @ X3 @ X1 )
=> ! [X4: $i] :
( ( in @ X4 @ X2 )
=> ( in @ ( kpair @ X3 @ X4 ) @ ( cartprod @ X1 @ X2 ) ) ) ) ),
introduced(definition,[new_symbols(definition,[sP4])]) ).
thf(sP5,plain,
( sP5
<=> ! [X1: $i] :
( ( in @ X1 @ eigen__1 )
=> ( in @ ( kpair @ eigen__3 @ X1 ) @ ( cartprod @ eigen__0 @ eigen__1 ) ) ) ),
introduced(definition,[new_symbols(definition,[sP5])]) ).
thf(sP6,plain,
( sP6
<=> ! [X1: $i] :
( ( in @ X1 @ eigen__0 )
=> ! [X2: $i] :
( ( in @ X2 @ eigen__1 )
=> ( in @ ( kpair @ X1 @ X2 ) @ ( cartprod @ eigen__0 @ eigen__1 ) ) ) ) ),
introduced(definition,[new_symbols(definition,[sP6])]) ).
thf(sP7,plain,
( sP7
<=> ( ( in @ ( kpair @ eigen__3 @ eigen__4 ) @ ( cartprod @ eigen__0 @ eigen__1 ) )
=> sP2 ) ),
introduced(definition,[new_symbols(definition,[sP7])]) ).
thf(sP8,plain,
( sP8
<=> ! [X1: $i] :
( ( in @ X1 @ ( cartprod @ eigen__0 @ eigen__1 ) )
=> ( ~ ! [X2: $i] :
( ( in @ X2 @ eigen__0 )
=> ! [X3: $i] :
( ~ ( ( in @ X3 @ eigen__1 )
=> ~ ( eigen__2 @ X2 @ X3 ) )
=> ( X1
!= ( kpair @ X2 @ X3 ) ) ) )
=> ( in @ X1
@ ( dsetconstr @ ( cartprod @ eigen__0 @ eigen__1 )
@ ^ [X2: $i] :
~ ! [X3: $i] :
( ( in @ X3 @ eigen__0 )
=> ! [X4: $i] :
( ~ ( ( in @ X4 @ eigen__1 )
=> ~ ( eigen__2 @ X3 @ X4 ) )
=> ( X2
!= ( kpair @ X3 @ X4 ) ) ) ) ) ) ) ) ),
introduced(definition,[new_symbols(definition,[sP8])]) ).
thf(sP9,plain,
( sP9
<=> ( ( in @ eigen__3 @ eigen__0 )
=> ! [X1: $i] :
( ~ ( ( in @ X1 @ eigen__1 )
=> ~ ( eigen__2 @ eigen__3 @ X1 ) )
=> ( ( kpair @ eigen__3 @ eigen__4 )
!= ( kpair @ eigen__3 @ X1 ) ) ) ) ),
introduced(definition,[new_symbols(definition,[sP9])]) ).
thf(sP10,plain,
( sP10
<=> ! [X1: $i,X2: $i] :
( ( in @ X2 @ eigen__0 )
=> ! [X3: $i] :
( ( in @ X3 @ X1 )
=> ( in @ ( kpair @ X2 @ X3 ) @ ( cartprod @ eigen__0 @ X1 ) ) ) ) ),
introduced(definition,[new_symbols(definition,[sP10])]) ).
thf(sP11,plain,
( sP11
<=> ! [X1: $i > $o,X2: $i] :
( ( in @ X2 @ ( cartprod @ eigen__0 @ eigen__1 ) )
=> ( ( X1 @ X2 )
=> ( in @ X2 @ ( dsetconstr @ ( cartprod @ eigen__0 @ eigen__1 ) @ X1 ) ) ) ) ),
introduced(definition,[new_symbols(definition,[sP11])]) ).
thf(sP12,plain,
( sP12
<=> ! [X1: $i] :
( ( in @ X1 @ eigen__0 )
=> ! [X2: $i] :
( ~ ( ( in @ X2 @ eigen__1 )
=> ~ ( eigen__2 @ X1 @ X2 ) )
=> ( ( kpair @ eigen__3 @ eigen__4 )
!= ( kpair @ X1 @ X2 ) ) ) ) ),
introduced(definition,[new_symbols(definition,[sP12])]) ).
thf(sP13,plain,
( sP13
<=> ( in @ eigen__4 @ eigen__1 ) ),
introduced(definition,[new_symbols(definition,[sP13])]) ).
thf(sP14,plain,
( sP14
<=> ( sP13
=> ( in @ ( kpair @ eigen__3 @ eigen__4 ) @ ( cartprod @ eigen__0 @ eigen__1 ) ) ) ),
introduced(definition,[new_symbols(definition,[sP14])]) ).
thf(sP15,plain,
( sP15
<=> ( in @ ( kpair @ eigen__3 @ eigen__4 )
@ ( dsetconstr @ ( cartprod @ eigen__0 @ eigen__1 )
@ ^ [X1: $i] :
~ ! [X2: $i] :
( ( in @ X2 @ eigen__0 )
=> ! [X3: $i] :
( ~ ( ( in @ X3 @ eigen__1 )
=> ~ ( eigen__2 @ X2 @ X3 ) )
=> ( X1
!= ( kpair @ X2 @ X3 ) ) ) ) ) ) ),
introduced(definition,[new_symbols(definition,[sP15])]) ).
thf(sP16,plain,
( sP16
<=> ! [X1: $i] :
( ~ ( ( in @ X1 @ eigen__1 )
=> ~ ( eigen__2 @ eigen__3 @ X1 ) )
=> ( ( kpair @ eigen__3 @ eigen__4 )
!= ( kpair @ eigen__3 @ X1 ) ) ) ),
introduced(definition,[new_symbols(definition,[sP16])]) ).
thf(sP17,plain,
( sP17
<=> ( in @ eigen__3 @ eigen__0 ) ),
introduced(definition,[new_symbols(definition,[sP17])]) ).
thf(sP18,plain,
( sP18
<=> ( sP17
=> sP5 ) ),
introduced(definition,[new_symbols(definition,[sP18])]) ).
thf(sP19,plain,
( sP19
<=> ( in @ ( kpair @ eigen__3 @ eigen__4 ) @ ( cartprod @ eigen__0 @ eigen__1 ) ) ),
introduced(definition,[new_symbols(definition,[sP19])]) ).
thf(sP20,plain,
( sP20
<=> ( sP13
=> ~ sP1 ) ),
introduced(definition,[new_symbols(definition,[sP20])]) ).
thf(def_dsetconstrI,definition,
( dsetconstrI
= ( ! [X1: $i,X2: $i > $o,X3: $i] :
( ^ [X4: $o,X5: $o] :
( X4
=> X5 )
@ ( in @ X3 @ X1 )
@ ( ^ [X4: $o,X5: $o] :
( X4
=> X5 )
@ ( X2 @ X3 )
@ ( in @ X3
@ ( dsetconstr @ X1
@ ^ [X4: $i] : ( X2 @ X4 ) ) ) ) ) ) ) ).
thf(def_setext,definition,
( setext
= ( ! [X1: $i,X2: $i] :
( ^ [X3: $o,X4: $o] :
( X3
=> X4 )
@ ! [X3: $i] :
( ^ [X4: $o,X5: $o] :
( X4
=> X5 )
@ ( in @ X3 @ X1 )
@ ( in @ X3 @ X2 ) )
@ ( ^ [X3: $o,X4: $o] :
( X3
=> X4 )
@ ! [X3: $i] :
( ^ [X4: $o,X5: $o] :
( X4
=> X5 )
@ ( in @ X3 @ X2 )
@ ( in @ X3 @ X1 ) )
@ ( X1 = X2 ) ) ) ) ) ).
thf(def_cartprodpairin,definition,
( cartprodpairin
= ( ! [X1: $i,X2: $i,X3: $i] :
( ^ [X4: $o,X5: $o] :
( X4
=> X5 )
@ ( in @ X3 @ X1 )
@ ! [X4: $i] :
( ^ [X5: $o,X6: $o] :
( X5
=> X6 )
@ ( in @ X4 @ X2 )
@ ( in @ ( kpair @ X3 @ X4 ) @ ( cartprod @ X1 @ X2 ) ) ) ) ) ) ).
thf(def_dpsetconstr,definition,
( dpsetconstr
= ( ^ [X1: $i,X2: $i,X3: $i > $i > $o] :
( dsetconstr @ ( cartprod @ X1 @ X2 )
@ ^ [X4: $i] :
? [X5: $i] :
( ( in @ X5 @ X1 )
& ? [X6: $i] :
( ( in @ X6 @ X2 )
& ( X3 @ X5 @ X6 )
& ( X4
= ( kpair @ X5 @ X6 ) ) ) ) ) ) ) ).
thf(dpsetconstrI,conjecture,
( sP3
=> ( ! [X1: $i,X2: $i] :
( ! [X3: $i] :
( ( in @ X3 @ X1 )
=> ( in @ X3 @ X2 ) )
=> ( ! [X3: $i] :
( ( in @ X3 @ X2 )
=> ( in @ X3 @ X1 ) )
=> ( X1 = X2 ) ) )
=> ( sP4
=> ! [X1: $i,X2: $i,X3: $i > $i > $o,X4: $i] :
( ( in @ X4 @ X1 )
=> ! [X5: $i] :
( ( in @ X5 @ X2 )
=> ( ( X3 @ X4 @ X5 )
=> ( in @ ( kpair @ X4 @ X5 )
@ ( dsetconstr @ ( cartprod @ X1 @ X2 )
@ ^ [X6: $i] :
~ ! [X7: $i] :
( ( in @ X7 @ X1 )
=> ! [X8: $i] :
( ~ ( ( in @ X8 @ X2 )
=> ~ ( X3 @ X7 @ X8 ) )
=> ( X6
!= ( kpair @ X7 @ X8 ) ) ) ) ) ) ) ) ) ) ) ) ).
thf(h0,negated_conjecture,
~ ( sP3
=> ( ! [X1: $i,X2: $i] :
( ! [X3: $i] :
( ( in @ X3 @ X1 )
=> ( in @ X3 @ X2 ) )
=> ( ! [X3: $i] :
( ( in @ X3 @ X2 )
=> ( in @ X3 @ X1 ) )
=> ( X1 = X2 ) ) )
=> ( sP4
=> ! [X1: $i,X2: $i,X3: $i > $i > $o,X4: $i] :
( ( in @ X4 @ X1 )
=> ! [X5: $i] :
( ( in @ X5 @ X2 )
=> ( ( X3 @ X4 @ X5 )
=> ( in @ ( kpair @ X4 @ X5 )
@ ( dsetconstr @ ( cartprod @ X1 @ X2 )
@ ^ [X6: $i] :
~ ! [X7: $i] :
( ( in @ X7 @ X1 )
=> ! [X8: $i] :
( ~ ( ( in @ X8 @ X2 )
=> ~ ( X3 @ X7 @ X8 ) )
=> ( X6
!= ( kpair @ X7 @ X8 ) ) ) ) ) ) ) ) ) ) ) ),
inference(assume_negation,[status(cth)],[dpsetconstrI]) ).
thf(h1,assumption,
sP3,
introduced(assumption,[]) ).
thf(h2,assumption,
~ ( ! [X1: $i,X2: $i] :
( ! [X3: $i] :
( ( in @ X3 @ X1 )
=> ( in @ X3 @ X2 ) )
=> ( ! [X3: $i] :
( ( in @ X3 @ X2 )
=> ( in @ X3 @ X1 ) )
=> ( X1 = X2 ) ) )
=> ( sP4
=> ! [X1: $i,X2: $i,X3: $i > $i > $o,X4: $i] :
( ( in @ X4 @ X1 )
=> ! [X5: $i] :
( ( in @ X5 @ X2 )
=> ( ( X3 @ X4 @ X5 )
=> ( in @ ( kpair @ X4 @ X5 )
@ ( dsetconstr @ ( cartprod @ X1 @ X2 )
@ ^ [X6: $i] :
~ ! [X7: $i] :
( ( in @ X7 @ X1 )
=> ! [X8: $i] :
( ~ ( ( in @ X8 @ X2 )
=> ~ ( X3 @ X7 @ X8 ) )
=> ( X6
!= ( kpair @ X7 @ X8 ) ) ) ) ) ) ) ) ) ) ),
introduced(assumption,[]) ).
thf(h3,assumption,
! [X1: $i,X2: $i] :
( ! [X3: $i] :
( ( in @ X3 @ X1 )
=> ( in @ X3 @ X2 ) )
=> ( ! [X3: $i] :
( ( in @ X3 @ X2 )
=> ( in @ X3 @ X1 ) )
=> ( X1 = X2 ) ) ),
introduced(assumption,[]) ).
thf(h4,assumption,
~ ( sP4
=> ! [X1: $i,X2: $i,X3: $i > $i > $o,X4: $i] :
( ( in @ X4 @ X1 )
=> ! [X5: $i] :
( ( in @ X5 @ X2 )
=> ( ( X3 @ X4 @ X5 )
=> ( in @ ( kpair @ X4 @ X5 )
@ ( dsetconstr @ ( cartprod @ X1 @ X2 )
@ ^ [X6: $i] :
~ ! [X7: $i] :
( ( in @ X7 @ X1 )
=> ! [X8: $i] :
( ~ ( ( in @ X8 @ X2 )
=> ~ ( X3 @ X7 @ X8 ) )
=> ( X6
!= ( kpair @ X7 @ X8 ) ) ) ) ) ) ) ) ) ),
introduced(assumption,[]) ).
thf(h5,assumption,
sP4,
introduced(assumption,[]) ).
thf(h6,assumption,
~ ! [X1: $i,X2: $i,X3: $i > $i > $o,X4: $i] :
( ( in @ X4 @ X1 )
=> ! [X5: $i] :
( ( in @ X5 @ X2 )
=> ( ( X3 @ X4 @ X5 )
=> ( in @ ( kpair @ X4 @ X5 )
@ ( dsetconstr @ ( cartprod @ X1 @ X2 )
@ ^ [X6: $i] :
~ ! [X7: $i] :
( ( in @ X7 @ X1 )
=> ! [X8: $i] :
( ~ ( ( in @ X8 @ X2 )
=> ~ ( X3 @ X7 @ X8 ) )
=> ( X6
!= ( kpair @ X7 @ X8 ) ) ) ) ) ) ) ) ),
introduced(assumption,[]) ).
thf(h7,assumption,
~ ! [X1: $i,X2: $i > $i > $o,X3: $i] :
( ( in @ X3 @ eigen__0 )
=> ! [X4: $i] :
( ( in @ X4 @ X1 )
=> ( ( X2 @ X3 @ X4 )
=> ( in @ ( kpair @ X3 @ X4 )
@ ( dsetconstr @ ( cartprod @ eigen__0 @ X1 )
@ ^ [X5: $i] :
~ ! [X6: $i] :
( ( in @ X6 @ eigen__0 )
=> ! [X7: $i] :
( ~ ( ( in @ X7 @ X1 )
=> ~ ( X2 @ X6 @ X7 ) )
=> ( X5
!= ( kpair @ X6 @ X7 ) ) ) ) ) ) ) ) ),
introduced(assumption,[]) ).
thf(h8,assumption,
~ ! [X1: $i > $i > $o,X2: $i] :
( ( in @ X2 @ eigen__0 )
=> ! [X3: $i] :
( ( in @ X3 @ eigen__1 )
=> ( ( X1 @ X2 @ X3 )
=> ( in @ ( kpair @ X2 @ X3 )
@ ( dsetconstr @ ( cartprod @ eigen__0 @ eigen__1 )
@ ^ [X4: $i] :
~ ! [X5: $i] :
( ( in @ X5 @ eigen__0 )
=> ! [X6: $i] :
( ~ ( ( in @ X6 @ eigen__1 )
=> ~ ( X1 @ X5 @ X6 ) )
=> ( X4
!= ( kpair @ X5 @ X6 ) ) ) ) ) ) ) ) ),
introduced(assumption,[]) ).
thf(h9,assumption,
~ ! [X1: $i] :
( ( in @ X1 @ eigen__0 )
=> ! [X2: $i] :
( ( in @ X2 @ eigen__1 )
=> ( ( eigen__2 @ X1 @ X2 )
=> ( in @ ( kpair @ X1 @ X2 )
@ ( dsetconstr @ ( cartprod @ eigen__0 @ eigen__1 )
@ ^ [X3: $i] :
~ ! [X4: $i] :
( ( in @ X4 @ eigen__0 )
=> ! [X5: $i] :
( ~ ( ( in @ X5 @ eigen__1 )
=> ~ ( eigen__2 @ X4 @ X5 ) )
=> ( X3
!= ( kpair @ X4 @ X5 ) ) ) ) ) ) ) ) ),
introduced(assumption,[]) ).
thf(h10,assumption,
~ ( sP17
=> ! [X1: $i] :
( ( in @ X1 @ eigen__1 )
=> ( ( eigen__2 @ eigen__3 @ X1 )
=> ( in @ ( kpair @ eigen__3 @ X1 )
@ ( dsetconstr @ ( cartprod @ eigen__0 @ eigen__1 )
@ ^ [X2: $i] :
~ ! [X3: $i] :
( ( in @ X3 @ eigen__0 )
=> ! [X4: $i] :
( ~ ( ( in @ X4 @ eigen__1 )
=> ~ ( eigen__2 @ X3 @ X4 ) )
=> ( X2
!= ( kpair @ X3 @ X4 ) ) ) ) ) ) ) ) ),
introduced(assumption,[]) ).
thf(h11,assumption,
sP17,
introduced(assumption,[]) ).
thf(h12,assumption,
~ ! [X1: $i] :
( ( in @ X1 @ eigen__1 )
=> ( ( eigen__2 @ eigen__3 @ X1 )
=> ( in @ ( kpair @ eigen__3 @ X1 )
@ ( dsetconstr @ ( cartprod @ eigen__0 @ eigen__1 )
@ ^ [X2: $i] :
~ ! [X3: $i] :
( ( in @ X3 @ eigen__0 )
=> ! [X4: $i] :
( ~ ( ( in @ X4 @ eigen__1 )
=> ~ ( eigen__2 @ X3 @ X4 ) )
=> ( X2
!= ( kpair @ X3 @ X4 ) ) ) ) ) ) ) ),
introduced(assumption,[]) ).
thf(h13,assumption,
~ ( sP13
=> ( sP1
=> sP15 ) ),
introduced(assumption,[]) ).
thf(h14,assumption,
sP13,
introduced(assumption,[]) ).
thf(h15,assumption,
~ ( sP1
=> sP15 ),
introduced(assumption,[]) ).
thf(h16,assumption,
sP1,
introduced(assumption,[]) ).
thf(h17,assumption,
~ sP15,
introduced(assumption,[]) ).
thf(1,plain,
( ~ sP20
| ~ sP13
| ~ sP1 ),
inference(prop_rule,[status(thm)],[]) ).
thf(2,plain,
( ~ sP16
| sP20 ),
inference(all_rule,[status(thm)],[]) ).
thf(3,plain,
( ~ sP9
| ~ sP17
| sP16 ),
inference(prop_rule,[status(thm)],[]) ).
thf(4,plain,
( ~ sP12
| sP9 ),
inference(all_rule,[status(thm)],[]) ).
thf(5,plain,
( ~ sP14
| ~ sP13
| sP19 ),
inference(prop_rule,[status(thm)],[]) ).
thf(6,plain,
( ~ sP2
| sP12
| sP15 ),
inference(prop_rule,[status(thm)],[]) ).
thf(7,plain,
( ~ sP5
| sP14 ),
inference(all_rule,[status(thm)],[]) ).
thf(8,plain,
( ~ sP7
| ~ sP19
| sP2 ),
inference(prop_rule,[status(thm)],[]) ).
thf(9,plain,
( ~ sP18
| ~ sP17
| sP5 ),
inference(prop_rule,[status(thm)],[]) ).
thf(10,plain,
( ~ sP8
| sP7 ),
inference(all_rule,[status(thm)],[]) ).
thf(11,plain,
( ~ sP6
| sP18 ),
inference(all_rule,[status(thm)],[]) ).
thf(12,plain,
( ~ sP11
| sP8 ),
inference(all_rule,[status(thm)],[]) ).
thf(13,plain,
( ~ sP10
| sP6 ),
inference(all_rule,[status(thm)],[]) ).
thf(14,plain,
( ~ sP3
| sP11 ),
inference(all_rule,[status(thm)],[]) ).
thf(15,plain,
( ~ sP4
| sP10 ),
inference(all_rule,[status(thm)],[]) ).
thf(16,plain,
$false,
inference(prop_unsat,[status(thm),assumptions([h16,h17,h14,h15,h13,h11,h12,h10,h9,h8,h7,h5,h6,h3,h4,h1,h2,h0])],[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,h1,h5,h11,h14,h16,h17]) ).
thf(17,plain,
$false,
inference(tab_negimp,[status(thm),assumptions([h14,h15,h13,h11,h12,h10,h9,h8,h7,h5,h6,h3,h4,h1,h2,h0]),tab_negimp(discharge,[h16,h17])],[h15,16,h16,h17]) ).
thf(18,plain,
$false,
inference(tab_negimp,[status(thm),assumptions([h13,h11,h12,h10,h9,h8,h7,h5,h6,h3,h4,h1,h2,h0]),tab_negimp(discharge,[h14,h15])],[h13,17,h14,h15]) ).
thf(19,plain,
$false,
inference(tab_negall,[status(thm),assumptions([h11,h12,h10,h9,h8,h7,h5,h6,h3,h4,h1,h2,h0]),tab_negall(discharge,[h13]),tab_negall(eigenvar,eigen__4)],[h12,18,h13]) ).
thf(20,plain,
$false,
inference(tab_negimp,[status(thm),assumptions([h10,h9,h8,h7,h5,h6,h3,h4,h1,h2,h0]),tab_negimp(discharge,[h11,h12])],[h10,19,h11,h12]) ).
thf(21,plain,
$false,
inference(tab_negall,[status(thm),assumptions([h9,h8,h7,h5,h6,h3,h4,h1,h2,h0]),tab_negall(discharge,[h10]),tab_negall(eigenvar,eigen__3)],[h9,20,h10]) ).
thf(22,plain,
$false,
inference(tab_negall,[status(thm),assumptions([h8,h7,h5,h6,h3,h4,h1,h2,h0]),tab_negall(discharge,[h9]),tab_negall(eigenvar,eigen__2)],[h8,21,h9]) ).
thf(23,plain,
$false,
inference(tab_negall,[status(thm),assumptions([h7,h5,h6,h3,h4,h1,h2,h0]),tab_negall(discharge,[h8]),tab_negall(eigenvar,eigen__1)],[h7,22,h8]) ).
thf(24,plain,
$false,
inference(tab_negall,[status(thm),assumptions([h5,h6,h3,h4,h1,h2,h0]),tab_negall(discharge,[h7]),tab_negall(eigenvar,eigen__0)],[h6,23,h7]) ).
thf(25,plain,
$false,
inference(tab_negimp,[status(thm),assumptions([h3,h4,h1,h2,h0]),tab_negimp(discharge,[h5,h6])],[h4,24,h5,h6]) ).
thf(26,plain,
$false,
inference(tab_negimp,[status(thm),assumptions([h1,h2,h0]),tab_negimp(discharge,[h3,h4])],[h2,25,h3,h4]) ).
thf(27,plain,
$false,
inference(tab_negimp,[status(thm),assumptions([h0]),tab_negimp(discharge,[h1,h2])],[h0,26,h1,h2]) ).
thf(0,theorem,
( sP3
=> ( ! [X1: $i,X2: $i] :
( ! [X3: $i] :
( ( in @ X3 @ X1 )
=> ( in @ X3 @ X2 ) )
=> ( ! [X3: $i] :
( ( in @ X3 @ X2 )
=> ( in @ X3 @ X1 ) )
=> ( X1 = X2 ) ) )
=> ( sP4
=> ! [X1: $i,X2: $i,X3: $i > $i > $o,X4: $i] :
( ( in @ X4 @ X1 )
=> ! [X5: $i] :
( ( in @ X5 @ X2 )
=> ( ( X3 @ X4 @ X5 )
=> ( in @ ( kpair @ X4 @ X5 )
@ ( dsetconstr @ ( cartprod @ X1 @ X2 )
@ ^ [X6: $i] :
~ ! [X7: $i] :
( ( in @ X7 @ X1 )
=> ! [X8: $i] :
( ~ ( ( in @ X8 @ X2 )
=> ~ ( X3 @ X7 @ X8 ) )
=> ( X6
!= ( kpair @ X7 @ X8 ) ) ) ) ) ) ) ) ) ) ) ),
inference(contra,[status(thm),contra(discharge,[h0])],[27,h0]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.08/0.13 % Problem : SEU665^2 : TPTP v9.2.0. Released v3.7.0.
% 0.08/0.14 % Command : lash -P picomus -M modes -p tstp -t %d %s
% 0.14/0.35 % Computer : n028.cluster.edu
% 0.14/0.35 % Model : x86_64 x86_64
% 0.14/0.35 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.35 % Memory : 8042.1875MB
% 0.14/0.35 % OS : Linux 3.10.0-693.el7.x86_64
% 0.14/0.35 % CPULimit : 300
% 0.14/0.35 % WCLimit : 300
% 0.14/0.35 % DateTime : Wed Oct 8 20:47:38 EDT 2025
% 0.14/0.36 % CPUTime :
% 31.56/31.50 % SZS status Theorem
% 31.56/31.50 % Mode: cade22grackle2x798d
% 31.56/31.50 % Steps: 480737
% 31.56/31.50 % SZS output start Proof
% See solution above
%------------------------------------------------------------------------------