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| Mirrors > Home > ILE Home > Th. List > tgcnp | Unicode version | ||
| Description: The "continuous at a point" predicate when the range is given by a basis for a topology. (Contributed by Mario Carneiro, 3-Feb-2015.) (Revised by Mario Carneiro, 22-Aug-2015.) |
| Ref | Expression |
|---|---|
| tgcn.1 |
|
| tgcn.3 |
|
| tgcn.4 |
|
| tgcnp.5 |
|
| Ref | Expression |
|---|---|
| tgcnp |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | tgcn.1 |
. . . 4
| |
| 2 | tgcn.4 |
. . . 4
| |
| 3 | tgcnp.5 |
. . . 4
| |
| 4 | iscnp 14922 |
. . . 4
| |
| 5 | 1, 2, 3, 4 | syl3anc 1273 |
. . 3
|
| 6 | tgcn.3 |
. . . . . . . . 9
| |
| 7 | topontop 14737 |
. . . . . . . . . 10
| |
| 8 | 2, 7 | syl 14 |
. . . . . . . . 9
|
| 9 | 6, 8 | eqeltrrd 2309 |
. . . . . . . 8
|
| 10 | tgclb 14788 |
. . . . . . . 8
| |
| 11 | 9, 10 | sylibr 134 |
. . . . . . 7
|
| 12 | bastg 14784 |
. . . . . . 7
| |
| 13 | 11, 12 | syl 14 |
. . . . . 6
|
| 14 | 13, 6 | sseqtrrd 3266 |
. . . . 5
|
| 15 | ssralv 3291 |
. . . . 5
| |
| 16 | 14, 15 | syl 14 |
. . . 4
|
| 17 | 16 | anim2d 337 |
. . 3
|
| 18 | 5, 17 | sylbid 150 |
. 2
|
| 19 | 6 | eleq2d 2301 |
. . . . . . 7
|
| 20 | 19 | biimpa 296 |
. . . . . 6
|
| 21 | tg2 14783 |
. . . . . . . . 9
| |
| 22 | r19.29 2670 |
. . . . . . . . . . 11
| |
| 23 | sstr 3235 |
. . . . . . . . . . . . . . . . . 18
| |
| 24 | 23 | expcom 116 |
. . . . . . . . . . . . . . . . 17
|
| 25 | 24 | anim2d 337 |
. . . . . . . . . . . . . . . 16
|
| 26 | 25 | reximdv 2633 |
. . . . . . . . . . . . . . 15
|
| 27 | 26 | com12 30 |
. . . . . . . . . . . . . 14
|
| 28 | 27 | imim2i 12 |
. . . . . . . . . . . . 13
|
| 29 | 28 | imp32 257 |
. . . . . . . . . . . 12
|
| 30 | 29 | rexlimivw 2646 |
. . . . . . . . . . 11
|
| 31 | 22, 30 | syl 14 |
. . . . . . . . . 10
|
| 32 | 31 | expcom 116 |
. . . . . . . . 9
|
| 33 | 21, 32 | syl 14 |
. . . . . . . 8
|
| 34 | 33 | ex 115 |
. . . . . . 7
|
| 35 | 34 | com23 78 |
. . . . . 6
|
| 36 | 20, 35 | syl 14 |
. . . . 5
|
| 37 | 36 | ralrimdva 2612 |
. . . 4
|
| 38 | 37 | anim2d 337 |
. . 3
|
| 39 | iscnp 14922 |
. . . 4
| |
| 40 | 1, 2, 3, 39 | syl3anc 1273 |
. . 3
|
| 41 | 38, 40 | sylibrd 169 |
. 2
|
| 42 | 18, 41 | impbid 129 |
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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-13 2204 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 ax-un 4530 ax-setind 4635 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-fal 1403 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ne 2403 df-ral 2515 df-rex 2516 df-rab 2519 df-v 2804 df-sbc 3032 df-csb 3128 df-dif 3202 df-un 3204 df-in 3206 df-ss 3213 df-nul 3495 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-iun 3972 df-br 4089 df-opab 4151 df-mpt 4152 df-id 4390 df-xp 4731 df-rel 4732 df-cnv 4733 df-co 4734 df-dm 4735 df-rn 4736 df-res 4737 df-ima 4738 df-iota 5286 df-fun 5328 df-fn 5329 df-f 5330 df-fv 5334 df-ov 6020 df-oprab 6021 df-mpo 6022 df-1st 6302 df-2nd 6303 df-map 6818 df-topgen 13342 df-top 14721 df-topon 14734 df-bases 14766 df-cnp 14912 |
| This theorem is referenced by: txcnp 14994 metcnp3 15234 |
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