Step | Hyp | Ref
| Expression |
1 | | nonconne 2953 |
. 2
β’ Β¬
(π = π β§ π β π) |
2 | | simpll 766 |
. . . . 5
β’ (((πΎ β HL β§ π β π΄) β§ (( β₯ β( β₯
βπ)) = π β§ π β β
)) β πΎ β HL) |
3 | | simplr 768 |
. . . . 5
β’ (((πΎ β HL β§ π β π΄) β§ (( β₯ β( β₯
βπ)) = π β§ π β β
)) β π β π΄) |
4 | | pexmidALT.a |
. . . . . . 7
β’ π΄ = (AtomsβπΎ) |
5 | | pexmidALT.o |
. . . . . . 7
β’ β₯ =
(β₯πβπΎ) |
6 | 4, 5 | polssatN 38768 |
. . . . . 6
β’ ((πΎ β HL β§ π β π΄) β ( β₯ βπ) β π΄) |
7 | 6 | adantr 482 |
. . . . 5
β’ (((πΎ β HL β§ π β π΄) β§ (( β₯ β( β₯
βπ)) = π β§ π β β
)) β ( β₯ βπ) β π΄) |
8 | | pexmidALT.p |
. . . . . 6
β’ + =
(+πβπΎ) |
9 | 4, 8 | paddssat 38674 |
. . . . 5
β’ ((πΎ β HL β§ π β π΄ β§ ( β₯ βπ) β π΄) β (π + ( β₯ βπ)) β π΄) |
10 | 2, 3, 7, 9 | syl3anc 1372 |
. . . 4
β’ (((πΎ β HL β§ π β π΄) β§ (( β₯ β( β₯
βπ)) = π β§ π β β
)) β (π + ( β₯ βπ)) β π΄) |
11 | | df-pss 3967 |
. . . . . . 7
β’ ((π + ( β₯ βπ)) β π΄ β ((π + ( β₯ βπ)) β π΄ β§ (π + ( β₯ βπ)) β π΄)) |
12 | | pssnel 4470 |
. . . . . . 7
β’ ((π + ( β₯ βπ)) β π΄ β βπ(π β π΄ β§ Β¬ π β (π + ( β₯ βπ)))) |
13 | 11, 12 | sylbir 234 |
. . . . . 6
β’ (((π + ( β₯ βπ)) β π΄ β§ (π + ( β₯ βπ)) β π΄) β βπ(π β π΄ β§ Β¬ π β (π + ( β₯ βπ)))) |
14 | | df-rex 3072 |
. . . . . 6
β’
(βπ β
π΄ Β¬ π β (π + ( β₯ βπ)) β βπ(π β π΄ β§ Β¬ π β (π + ( β₯ βπ)))) |
15 | 13, 14 | sylibr 233 |
. . . . 5
β’ (((π + ( β₯ βπ)) β π΄ β§ (π + ( β₯ βπ)) β π΄) β βπ β π΄ Β¬ π β (π + ( β₯ βπ))) |
16 | | simplll 774 |
. . . . . . . 8
β’ ((((πΎ β HL β§ π β π΄) β§ (( β₯ β( β₯
βπ)) = π β§ π β β
)) β§ (π β π΄ β§ Β¬ π β (π + ( β₯ βπ)))) β πΎ β HL) |
17 | | simpllr 775 |
. . . . . . . 8
β’ ((((πΎ β HL β§ π β π΄) β§ (( β₯ β( β₯
βπ)) = π β§ π β β
)) β§ (π β π΄ β§ Β¬ π β (π + ( β₯ βπ)))) β π β π΄) |
18 | | simprl 770 |
. . . . . . . 8
β’ ((((πΎ β HL β§ π β π΄) β§ (( β₯ β( β₯
βπ)) = π β§ π β β
)) β§ (π β π΄ β§ Β¬ π β (π + ( β₯ βπ)))) β π β π΄) |
19 | | simplrl 776 |
. . . . . . . 8
β’ ((((πΎ β HL β§ π β π΄) β§ (( β₯ β( β₯
βπ)) = π β§ π β β
)) β§ (π β π΄ β§ Β¬ π β (π + ( β₯ βπ)))) β ( β₯ β( β₯
βπ)) = π) |
20 | | simplrr 777 |
. . . . . . . 8
β’ ((((πΎ β HL β§ π β π΄) β§ (( β₯ β( β₯
βπ)) = π β§ π β β
)) β§ (π β π΄ β§ Β¬ π β (π + ( β₯ βπ)))) β π β β
) |
21 | | simprr 772 |
. . . . . . . 8
β’ ((((πΎ β HL β§ π β π΄) β§ (( β₯ β( β₯
βπ)) = π β§ π β β
)) β§ (π β π΄ β§ Β¬ π β (π + ( β₯ βπ)))) β Β¬ π β (π + ( β₯ βπ))) |
22 | | eqid 2733 |
. . . . . . . . . 10
β’
(leβπΎ) =
(leβπΎ) |
23 | | eqid 2733 |
. . . . . . . . . 10
β’
(joinβπΎ) =
(joinβπΎ) |
24 | | eqid 2733 |
. . . . . . . . . 10
β’ (π + {π}) = (π + {π}) |
25 | 22, 23, 4, 8, 5, 24 | pexmidlem6N 38835 |
. . . . . . . . 9
β’ (((πΎ β HL β§ π β π΄ β§ π β π΄) β§ (( β₯ β( β₯
βπ)) = π β§ π β β
β§ Β¬ π β (π + ( β₯ βπ)))) β (π + {π}) = π) |
26 | 22, 23, 4, 8, 5, 24 | pexmidlem7N 38836 |
. . . . . . . . 9
β’ (((πΎ β HL β§ π β π΄ β§ π β π΄) β§ (( β₯ β( β₯
βπ)) = π β§ π β β
β§ Β¬ π β (π + ( β₯ βπ)))) β (π + {π}) β π) |
27 | 25, 26 | jca 513 |
. . . . . . . 8
β’ (((πΎ β HL β§ π β π΄ β§ π β π΄) β§ (( β₯ β( β₯
βπ)) = π β§ π β β
β§ Β¬ π β (π + ( β₯ βπ)))) β ((π + {π}) = π β§ (π + {π}) β π)) |
28 | 16, 17, 18, 19, 20, 21, 27 | syl33anc 1386 |
. . . . . . 7
β’ ((((πΎ β HL β§ π β π΄) β§ (( β₯ β( β₯
βπ)) = π β§ π β β
)) β§ (π β π΄ β§ Β¬ π β (π + ( β₯ βπ)))) β ((π + {π}) = π β§ (π + {π}) β π)) |
29 | | nonconne 2953 |
. . . . . . . 8
β’ Β¬
((π + {π}) = π β§ (π + {π}) β π) |
30 | 29, 1 | 2false 376 |
. . . . . . 7
β’ (((π + {π}) = π β§ (π + {π}) β π) β (π = π β§ π β π)) |
31 | 28, 30 | sylib 217 |
. . . . . 6
β’ ((((πΎ β HL β§ π β π΄) β§ (( β₯ β( β₯
βπ)) = π β§ π β β
)) β§ (π β π΄ β§ Β¬ π β (π + ( β₯ βπ)))) β (π = π β§ π β π)) |
32 | 31 | rexlimdvaa 3157 |
. . . . 5
β’ (((πΎ β HL β§ π β π΄) β§ (( β₯ β( β₯
βπ)) = π β§ π β β
)) β (βπ β π΄ Β¬ π β (π + ( β₯ βπ)) β (π = π β§ π β π))) |
33 | 15, 32 | syl5 34 |
. . . 4
β’ (((πΎ β HL β§ π β π΄) β§ (( β₯ β( β₯
βπ)) = π β§ π β β
)) β (((π + ( β₯ βπ)) β π΄ β§ (π + ( β₯ βπ)) β π΄) β (π = π β§ π β π))) |
34 | 10, 33 | mpand 694 |
. . 3
β’ (((πΎ β HL β§ π β π΄) β§ (( β₯ β( β₯
βπ)) = π β§ π β β
)) β ((π + ( β₯ βπ)) β π΄ β (π = π β§ π β π))) |
35 | 34 | necon1bd 2959 |
. 2
β’ (((πΎ β HL β§ π β π΄) β§ (( β₯ β( β₯
βπ)) = π β§ π β β
)) β (Β¬ (π = π β§ π β π) β (π + ( β₯ βπ)) = π΄)) |
36 | 1, 35 | mpi 20 |
1
β’ (((πΎ β HL β§ π β π΄) β§ (( β₯ β( β₯
βπ)) = π β§ π β β
)) β (π + ( β₯ βπ)) = π΄) |