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Mirrors > Home > ILE Home > Th. List > eltg3 | Unicode version |
Description: Membership in a topology generated by a basis. (Contributed by NM, 15-Jul-2006.) (Revised by Jim Kingdon, 4-Mar-2023.) |
Ref | Expression |
---|---|
eltg3 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-topgen 12513 | . . . . . . 7 | |
2 | 1 | funmpt2 5221 | . . . . . 6 |
3 | funrel 5199 | . . . . . 6 | |
4 | 2, 3 | ax-mp 5 | . . . . 5 |
5 | relelfvdm 5512 | . . . . 5 | |
6 | 4, 5 | mpan 421 | . . . 4 |
7 | inex1g 4112 | . . . 4 | |
8 | 6, 7 | syl 14 | . . 3 |
9 | eltg4i 12596 | . . 3 | |
10 | inss1 3337 | . . . . . . 7 | |
11 | sseq1 3160 | . . . . . . 7 | |
12 | 10, 11 | mpbiri 167 | . . . . . 6 |
13 | 12 | biantrurd 303 | . . . . 5 |
14 | unieq 3792 | . . . . . 6 | |
15 | 14 | eqeq2d 2176 | . . . . 5 |
16 | 13, 15 | bitr3d 189 | . . . 4 |
17 | 16 | spcegv 2809 | . . 3 |
18 | 8, 9, 17 | sylc 62 | . 2 |
19 | eltg3i 12597 | . . . . 5 | |
20 | eleq1 2227 | . . . . 5 | |
21 | 19, 20 | syl5ibrcom 156 | . . . 4 |
22 | 21 | expimpd 361 | . . 3 |
23 | 22 | exlimdv 1806 | . 2 |
24 | 18, 23 | impbid2 142 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 wceq 1342 wex 1479 wcel 2135 cab 2150 cvv 2721 cin 3110 wss 3111 cpw 3553 cuni 3783 cdm 4598 wrel 4603 wfun 5176 cfv 5182 ctg 12507 |
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 699 ax-5 1434 ax-7 1435 ax-gen 1436 ax-ie1 1480 ax-ie2 1481 ax-8 1491 ax-10 1492 ax-11 1493 ax-i12 1494 ax-bndl 1496 ax-4 1497 ax-17 1513 ax-i9 1517 ax-ial 1521 ax-i5r 1522 ax-13 2137 ax-14 2138 ax-ext 2146 ax-sep 4094 ax-pow 4147 ax-pr 4181 ax-un 4405 |
This theorem depends on definitions: df-bi 116 df-3an 969 df-tru 1345 df-nf 1448 df-sb 1750 df-eu 2016 df-mo 2017 df-clab 2151 df-cleq 2157 df-clel 2160 df-nfc 2295 df-ral 2447 df-rex 2448 df-v 2723 df-sbc 2947 df-un 3115 df-in 3117 df-ss 3124 df-pw 3555 df-sn 3576 df-pr 3577 df-op 3579 df-uni 3784 df-br 3977 df-opab 4038 df-mpt 4039 df-id 4265 df-xp 4604 df-rel 4605 df-cnv 4606 df-co 4607 df-dm 4608 df-iota 5147 df-fun 5184 df-fv 5190 df-topgen 12513 |
This theorem is referenced by: tgval3 12599 tgtop 12609 eltop3 12612 tgidm 12615 bastop1 12624 tgrest 12710 tgcn 12749 txbasval 12808 |
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