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| Mirrors > Home > ILE Home > Th. List > tgcn | Unicode version | ||
| Description: The continuity predicate when the range is given by a basis for a topology. (Contributed by Mario Carneiro, 7-Feb-2015.) (Revised by Mario Carneiro, 22-Aug-2015.) |
| Ref | Expression |
|---|---|
| tgcn.1 |
|
| tgcn.3 |
|
| tgcn.4 |
|
| Ref | Expression |
|---|---|
| tgcn |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | tgcn.1 |
. . 3
| |
| 2 | tgcn.4 |
. . 3
| |
| 3 | iscn 15221 |
. . 3
| |
| 4 | 1, 2, 3 | syl2anc 415 |
. 2
|
| 5 | tgcn.3 |
. . . . . . . . 9
| |
| 6 | topontop 15038 |
. . . . . . . . . 10
| |
| 7 | 2, 6 | syl 14 |
. . . . . . . . 9
|
| 8 | 5, 7 | eqeltrrd 2316 |
. . . . . . . 8
|
| 9 | tgclb 15089 |
. . . . . . . 8
| |
| 10 | 8, 9 | sylibr 134 |
. . . . . . 7
|
| 11 | bastg 15085 |
. . . . . . 7
| |
| 12 | 10, 11 | syl 14 |
. . . . . 6
|
| 13 | 12, 5 | sseqtrrd 3287 |
. . . . 5
|
| 14 | ssralv 3312 |
. . . . 5
| |
| 15 | 13, 14 | syl 14 |
. . . 4
|
| 16 | 5 | eleq2d 2308 |
. . . . . . . . 9
|
| 17 | eltg3 15081 |
. . . . . . . . . 10
| |
| 18 | 10, 17 | syl 14 |
. . . . . . . . 9
|
| 19 | 16, 18 | bitrd 188 |
. . . . . . . 8
|
| 20 | ssralv 3312 |
. . . . . . . . . . . 12
| |
| 21 | topontop 15038 |
. . . . . . . . . . . . . 14
| |
| 22 | 1, 21 | syl 14 |
. . . . . . . . . . . . 13
|
| 23 | iunopn 15026 |
. . . . . . . . . . . . . 14
| |
| 24 | 23 | ex 115 |
. . . . . . . . . . . . 13
|
| 25 | 22, 24 | syl 14 |
. . . . . . . . . . . 12
|
| 26 | 20, 25 | sylan9r 414 |
. . . . . . . . . . 11
|
| 27 | imaeq2 5117 |
. . . . . . . . . . . . . 14
| |
| 28 | imauni 5957 |
. . . . . . . . . . . . . 14
| |
| 29 | 27, 28 | eqtrdi 2287 |
. . . . . . . . . . . . 13
|
| 30 | 29 | eleq1d 2307 |
. . . . . . . . . . . 12
|
| 31 | 30 | imbi2d 230 |
. . . . . . . . . . 11
|
| 32 | 26, 31 | syl5ibrcom 157 |
. . . . . . . . . 10
|
| 33 | 32 | expimpd 363 |
. . . . . . . . 9
|
| 34 | 33 | exlimdv 1872 |
. . . . . . . 8
|
| 35 | 19, 34 | sylbid 150 |
. . . . . . 7
|
| 36 | 35 | imp 124 |
. . . . . 6
|
| 37 | 36 | ralrimdva 2630 |
. . . . 5
|
| 38 | imaeq2 5117 |
. . . . . . 7
| |
| 39 | 38 | eleq1d 2307 |
. . . . . 6
|
| 40 | 39 | cbvralv 2786 |
. . . . 5
|
| 41 | 37, 40 | imbitrdi 161 |
. . . 4
|
| 42 | 15, 41 | impbid 129 |
. . 3
|
| 43 | 42 | anbi2d 468 |
. 2
|
| 44 | 4, 43 | bitrd 188 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4244 ax-pow 4306 ax-pr 4341 ax-un 4573 ax-setind 4679 |
| This theorem depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-ral 2533 df-rex 2534 df-rab 2537 df-v 2823 df-sbc 3052 df-csb 3148 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-nul 3521 df-pw 3687 df-sn 3711 df-pr 3712 df-op 3714 df-uni 3931 df-iun 4009 df-br 4126 df-opab 4188 df-mpt 4189 df-id 4433 df-xp 4775 df-rel 4776 df-cnv 4777 df-co 4778 df-dm 4779 df-rn 4780 df-res 4781 df-ima 4782 df-iota 5332 df-fun 5374 df-fn 5375 df-f 5376 df-fv 5380 df-ov 6078 df-oprab 6079 df-mpo 6080 df-1st 6364 df-2nd 6365 df-map 6914 df-topgen 13591 df-top 15022 df-topon 15035 df-bases 15067 df-cn 15212 |
| This theorem is referenced by: txcnmpt 15297 |
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