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| Mirrors > Home > ILE Home > Th. List > cntop1 | Unicode version | ||
| Description: Reverse closure for a continuous function. (Contributed by Mario Carneiro, 21-Aug-2015.) |
| Ref | Expression |
|---|---|
| cntop1 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 2238 |
. . . 4
| |
| 2 | eqid 2238 |
. . . 4
| |
| 3 | 1, 2 | iscn2 15227 |
. . 3
|
| 4 | 3 | simplbi 274 |
. 2
|
| 5 | 4 | simpld 112 |
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 4247 ax-pow 4309 ax-pr 4344 ax-un 4576 ax-setind 4682 |
| 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-pw 3690 df-sn 3714 df-pr 3715 df-op 3717 df-uni 3934 df-iun 4012 df-br 4129 df-opab 4191 df-mpt 4192 df-id 4436 df-xp 4778 df-rel 4779 df-cnv 4780 df-co 4781 df-dm 4782 df-rn 4783 df-res 4784 df-ima 4785 df-iota 5335 df-fun 5377 df-fn 5378 df-f 5379 df-fv 5383 df-ov 6081 df-oprab 6082 df-mpo 6083 df-1st 6367 df-2nd 6368 df-map 6917 df-top 15025 df-topon 15038 df-cn 15215 |
| This theorem is referenced by: cnco 15248 cnclima 15250 cnntri 15251 cnss2 15254 cncnpi 15255 cncnp2m 15258 cnrest 15262 cnrest2 15263 cnrest2r 15264 lmcn 15278 txcnmpt 15300 uptx 15301 txcn 15302 cnmpt21f 15319 hmeof1o 15336 hmeores 15342 txhmeo 15346 |
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