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Mirrors > Home > NFE Home > Th. List > phi011lem1 | Unicode version |
Description: Lemma for phi011 4600. (Contributed by SF, 3-Feb-2015.) |
Ref | Expression |
---|---|
phi011lem1 | Phi 0c Phi 0c Phi Phi |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ssun1 3427 | . . . . 5 Phi Phi 0c | |
2 | 1 | sseli 3270 | . . . 4 Phi Phi 0c |
3 | eleq2 2414 | . . . 4 Phi 0c Phi 0c Phi 0c Phi 0c | |
4 | 2, 3 | syl5ib 210 | . . 3 Phi 0c Phi 0c Phi Phi 0c |
5 | 0cnelphi 4598 | . . . . . 6 0c Phi | |
6 | eleq1 2413 | . . . . . 6 0c Phi 0c Phi | |
7 | 5, 6 | mtbiri 294 | . . . . 5 0c Phi |
8 | 7 | con2i 112 | . . . 4 Phi 0c |
9 | 8 | a1i 10 | . . 3 Phi 0c Phi 0c Phi 0c |
10 | elun 3221 | . . . . . . 7 Phi 0c Phi 0c | |
11 | df-sn 3742 | . . . . . . . . 9 0c 0c | |
12 | 11 | abeq2i 2461 | . . . . . . . 8 0c 0c |
13 | 12 | orbi2i 505 | . . . . . . 7 Phi 0c Phi 0c |
14 | 10, 13 | bitri 240 | . . . . . 6 Phi 0c Phi 0c |
15 | 14 | biimpi 186 | . . . . 5 Phi 0c Phi 0c |
16 | 15 | orcomd 377 | . . . 4 Phi 0c 0c Phi |
17 | 16 | ord 366 | . . 3 Phi 0c 0c Phi |
18 | 4, 9, 17 | ee22 1362 | . 2 Phi 0c Phi 0c Phi Phi |
19 | 18 | ssrdv 3279 | 1 Phi 0c Phi 0c Phi Phi |
Colors of variables: wff setvar class |
Syntax hints: wn 3 wi 4 wo 357 wceq 1642 wcel 1710 cun 3208 wss 3258 csn 3738 0cc0c 4375 Phi cphi 4563 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1546 ax-5 1557 ax-17 1616 ax-9 1654 ax-8 1675 ax-6 1729 ax-7 1734 ax-11 1746 ax-12 1925 ax-ext 2334 ax-nin 4079 ax-sn 4088 |
This theorem depends on definitions: df-bi 177 df-or 359 df-an 360 df-nan 1288 df-tru 1319 df-ex 1542 df-nf 1545 df-sb 1649 df-clab 2340 df-cleq 2346 df-clel 2349 df-nfc 2479 df-ne 2519 df-ral 2620 df-rex 2621 df-v 2862 df-nin 3212 df-compl 3213 df-in 3214 df-un 3215 df-dif 3216 df-ss 3260 df-nul 3552 df-if 3664 df-sn 3742 df-int 3928 df-1c 4137 df-0c 4378 df-addc 4379 df-nnc 4380 df-phi 4566 |
This theorem is referenced by: phi011 4600 |
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