Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > neissex | Unicode version |
Description: For any neighborhood of , there is a neighborhood of such that is a neighborhood of all subsets of . Generalization to subsets of Property Viv of [BourbakiTop1] p. I.3. (Contributed by FL, 2-Oct-2006.) |
Ref | Expression |
---|---|
neissex |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | neii2 12318 | . 2 | |
2 | opnneiss 12327 | . . . . 5 | |
3 | 2 | 3expb 1182 | . . . 4 |
4 | 3 | adantrrr 478 | . . 3 |
5 | 4 | adantlr 468 | . 2 |
6 | simplll 522 | . . . . . 6 | |
7 | simpll 518 | . . . . . . . . . 10 | |
8 | simpr 109 | . . . . . . . . . 10 | |
9 | eqid 2139 | . . . . . . . . . . . 12 | |
10 | 9 | neii1 12316 | . . . . . . . . . . 11 |
11 | 10 | adantr 274 | . . . . . . . . . 10 |
12 | 9 | opnssneib 12325 | . . . . . . . . . 10 |
13 | 7, 8, 11, 12 | syl3anc 1216 | . . . . . . . . 9 |
14 | 13 | biimpa 294 | . . . . . . . 8 |
15 | 14 | anasss 396 | . . . . . . 7 |
16 | 15 | adantr 274 | . . . . . 6 |
17 | simpr 109 | . . . . . 6 | |
18 | neiss 12319 | . . . . . 6 | |
19 | 6, 16, 17, 18 | syl3anc 1216 | . . . . 5 |
20 | 19 | ex 114 | . . . 4 |
21 | 20 | adantrrl 477 | . . 3 |
22 | 21 | alrimiv 1846 | . 2 |
23 | 1, 5, 22 | reximssdv 2536 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 wal 1329 wcel 1480 wrex 2417 wss 3071 cuni 3736 cfv 5123 ctop 12164 cnei 12307 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 ax-coll 4043 ax-sep 4046 ax-pow 4098 ax-pr 4131 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-tru 1334 df-nf 1437 df-sb 1736 df-eu 2002 df-mo 2003 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ral 2421 df-rex 2422 df-reu 2423 df-rab 2425 df-v 2688 df-sbc 2910 df-csb 3004 df-un 3075 df-in 3077 df-ss 3084 df-pw 3512 df-sn 3533 df-pr 3534 df-op 3536 df-uni 3737 df-iun 3815 df-br 3930 df-opab 3990 df-mpt 3991 df-id 4215 df-xp 4545 df-rel 4546 df-cnv 4547 df-co 4548 df-dm 4549 df-rn 4550 df-res 4551 df-ima 4552 df-iota 5088 df-fun 5125 df-fn 5126 df-f 5127 df-f1 5128 df-fo 5129 df-f1o 5130 df-fv 5131 df-top 12165 df-nei 12308 |
This theorem is referenced by: (None) |
Copyright terms: Public domain | W3C validator |