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| Mirrors > Home > ILE Home > Th. List > cnprcl2k | Unicode version | ||
| Description: Reverse closure for a function continuous at a point. (Contributed by Mario Carneiro, 21-Aug-2015.) (Revised by Jim Kingdon, 28-Mar-2023.) |
| Ref | Expression |
|---|---|
| cnprcl2k |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | topontop 14825 |
. . . . . . 7
| |
| 2 | 1 | 3ad2ant1 1045 |
. . . . . 6
|
| 3 | simp2 1025 |
. . . . . 6
| |
| 4 | uniexg 4542 |
. . . . . . . 8
| |
| 5 | 4 | 3ad2ant1 1045 |
. . . . . . 7
|
| 6 | mptexg 5889 |
. . . . . . 7
| |
| 7 | 5, 6 | syl 14 |
. . . . . 6
|
| 8 | unieq 3907 |
. . . . . . . 8
| |
| 9 | 8 | oveq2d 6044 |
. . . . . . . . 9
|
| 10 | rexeq 2732 |
. . . . . . . . . . 11
| |
| 11 | 10 | imbi2d 230 |
. . . . . . . . . 10
|
| 12 | 11 | ralbidv 2533 |
. . . . . . . . 9
|
| 13 | 9, 12 | rabeqbidv 2798 |
. . . . . . . 8
|
| 14 | 8, 13 | mpteq12dv 4176 |
. . . . . . 7
|
| 15 | unieq 3907 |
. . . . . . . . . 10
| |
| 16 | 15 | oveq1d 6043 |
. . . . . . . . 9
|
| 17 | raleq 2731 |
. . . . . . . . 9
| |
| 18 | 16, 17 | rabeqbidv 2798 |
. . . . . . . 8
|
| 19 | 18 | mpteq2dv 4185 |
. . . . . . 7
|
| 20 | df-cnp 15000 |
. . . . . . 7
| |
| 21 | 14, 19, 20 | ovmpog 6166 |
. . . . . 6
|
| 22 | 2, 3, 7, 21 | syl3anc 1274 |
. . . . 5
|
| 23 | 22 | dmeqd 4939 |
. . . 4
|
| 24 | eqid 2231 |
. . . . 5
| |
| 25 | 24 | dmmptss 5240 |
. . . 4
|
| 26 | 23, 25 | eqsstrdi 3280 |
. . 3
|
| 27 | toponuni 14826 |
. . . 4
| |
| 28 | 27 | 3ad2ant1 1045 |
. . 3
|
| 29 | 26, 28 | sseqtrrd 3267 |
. 2
|
| 30 | mptrel 4864 |
. . . 4
| |
| 31 | 22 | releqd 4816 |
. . . 4
|
| 32 | 30, 31 | mpbiri 168 |
. . 3
|
| 33 | simp3 1026 |
. . 3
| |
| 34 | relelfvdm 5680 |
. . 3
| |
| 35 | 32, 33, 34 | syl2anc 411 |
. 2
|
| 36 | 29, 35 | sseldd 3229 |
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-coll 4209 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-reu 2518 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-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-f1 5338 df-fo 5339 df-f1o 5340 df-fv 5341 df-ov 6031 df-oprab 6032 df-mpo 6033 df-topon 14822 df-cnp 15000 |
| This theorem is referenced by: cnpf2 15018 cnptopco 15033 cncnp 15041 cnptoprest2 15051 metcnpi 15326 metcnpi2 15327 metcnpi3 15328 limccnpcntop 15486 limccnp2lem 15487 limccnp2cntop 15488 |
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