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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 15008 |
. . 3
| |
| 4 | 1, 2, 3 | syl2anc 411 |
. 2
|
| 5 | tgcn.3 |
. . . . . . . . 9
| |
| 6 | topontop 14825 |
. . . . . . . . . 10
| |
| 7 | 2, 6 | syl 14 |
. . . . . . . . 9
|
| 8 | 5, 7 | eqeltrrd 2309 |
. . . . . . . 8
|
| 9 | tgclb 14876 |
. . . . . . . 8
| |
| 10 | 8, 9 | sylibr 134 |
. . . . . . 7
|
| 11 | bastg 14872 |
. . . . . . 7
| |
| 12 | 10, 11 | syl 14 |
. . . . . 6
|
| 13 | 12, 5 | sseqtrrd 3267 |
. . . . 5
|
| 14 | ssralv 3292 |
. . . . 5
| |
| 15 | 13, 14 | syl 14 |
. . . 4
|
| 16 | 5 | eleq2d 2301 |
. . . . . . . . 9
|
| 17 | eltg3 14868 |
. . . . . . . . . 10
| |
| 18 | 10, 17 | syl 14 |
. . . . . . . . 9
|
| 19 | 16, 18 | bitrd 188 |
. . . . . . . 8
|
| 20 | ssralv 3292 |
. . . . . . . . . . . 12
| |
| 21 | topontop 14825 |
. . . . . . . . . . . . . 14
| |
| 22 | 1, 21 | syl 14 |
. . . . . . . . . . . . 13
|
| 23 | iunopn 14813 |
. . . . . . . . . . . . . 14
| |
| 24 | 23 | ex 115 |
. . . . . . . . . . . . 13
|
| 25 | 22, 24 | syl 14 |
. . . . . . . . . . . 12
|
| 26 | 20, 25 | sylan9r 410 |
. . . . . . . . . . 11
|
| 27 | imaeq2 5078 |
. . . . . . . . . . . . . 14
| |
| 28 | imauni 5912 |
. . . . . . . . . . . . . 14
| |
| 29 | 27, 28 | eqtrdi 2280 |
. . . . . . . . . . . . 13
|
| 30 | 29 | eleq1d 2300 |
. . . . . . . . . . . 12
|
| 31 | 30 | imbi2d 230 |
. . . . . . . . . . 11
|
| 32 | 26, 31 | syl5ibrcom 157 |
. . . . . . . . . 10
|
| 33 | 32 | expimpd 363 |
. . . . . . . . 9
|
| 34 | 33 | exlimdv 1867 |
. . . . . . . 8
|
| 35 | 19, 34 | sylbid 150 |
. . . . . . 7
|
| 36 | 35 | imp 124 |
. . . . . 6
|
| 37 | 36 | ralrimdva 2613 |
. . . . 5
|
| 38 | imaeq2 5078 |
. . . . . . 7
| |
| 39 | 38 | eleq1d 2300 |
. . . . . 6
|
| 40 | 39 | cbvralv 2768 |
. . . . 5
|
| 41 | 37, 40 | imbitrdi 161 |
. . . 4
|
| 42 | 15, 41 | impbid 129 |
. . 3
|
| 43 | 42 | anbi2d 464 |
. 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 619 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2204 ax-14 2205 ax-ext 2213 ax-sep 4212 ax-pow 4270 ax-pr 4305 ax-un 4536 ax-setind 4641 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ne 2404 df-ral 2516 df-rex 2517 df-rab 2520 df-v 2805 df-sbc 3033 df-csb 3129 df-dif 3203 df-un 3205 df-in 3207 df-ss 3214 df-nul 3497 df-pw 3658 df-sn 3679 df-pr 3680 df-op 3682 df-uni 3899 df-iun 3977 df-br 4094 df-opab 4156 df-mpt 4157 df-id 4396 df-xp 4737 df-rel 4738 df-cnv 4739 df-co 4740 df-dm 4741 df-rn 4742 df-res 4743 df-ima 4744 df-iota 5293 df-fun 5335 df-fn 5336 df-f 5337 df-fv 5341 df-ov 6031 df-oprab 6032 df-mpo 6033 df-1st 6312 df-2nd 6313 df-map 6862 df-topgen 13423 df-top 14809 df-topon 14822 df-bases 14854 df-cn 14999 |
| This theorem is referenced by: txcnmpt 15084 |
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