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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 14737 |
. . . . . . 7
| |
| 2 | 1 | 3ad2ant1 1044 |
. . . . . 6
|
| 3 | simp2 1024 |
. . . . . 6
| |
| 4 | uniexg 4536 |
. . . . . . . 8
| |
| 5 | 4 | 3ad2ant1 1044 |
. . . . . . 7
|
| 6 | mptexg 5878 |
. . . . . . 7
| |
| 7 | 5, 6 | syl 14 |
. . . . . 6
|
| 8 | unieq 3902 |
. . . . . . . 8
| |
| 9 | 8 | oveq2d 6033 |
. . . . . . . . 9
|
| 10 | rexeq 2731 |
. . . . . . . . . . 11
| |
| 11 | 10 | imbi2d 230 |
. . . . . . . . . 10
|
| 12 | 11 | ralbidv 2532 |
. . . . . . . . 9
|
| 13 | 9, 12 | rabeqbidv 2797 |
. . . . . . . 8
|
| 14 | 8, 13 | mpteq12dv 4171 |
. . . . . . 7
|
| 15 | unieq 3902 |
. . . . . . . . . 10
| |
| 16 | 15 | oveq1d 6032 |
. . . . . . . . 9
|
| 17 | raleq 2730 |
. . . . . . . . 9
| |
| 18 | 16, 17 | rabeqbidv 2797 |
. . . . . . . 8
|
| 19 | 18 | mpteq2dv 4180 |
. . . . . . 7
|
| 20 | df-cnp 14912 |
. . . . . . 7
| |
| 21 | 14, 19, 20 | ovmpog 6155 |
. . . . . 6
|
| 22 | 2, 3, 7, 21 | syl3anc 1273 |
. . . . 5
|
| 23 | 22 | dmeqd 4933 |
. . . 4
|
| 24 | eqid 2231 |
. . . . 5
| |
| 25 | 24 | dmmptss 5233 |
. . . 4
|
| 26 | 23, 25 | eqsstrdi 3279 |
. . 3
|
| 27 | toponuni 14738 |
. . . 4
| |
| 28 | 27 | 3ad2ant1 1044 |
. . 3
|
| 29 | 26, 28 | sseqtrrd 3266 |
. 2
|
| 30 | mptrel 4858 |
. . . 4
| |
| 31 | 22 | releqd 4810 |
. . . 4
|
| 32 | 30, 31 | mpbiri 168 |
. . 3
|
| 33 | simp3 1025 |
. . 3
| |
| 34 | relelfvdm 5671 |
. . 3
| |
| 35 | 32, 33, 34 | syl2anc 411 |
. 2
|
| 36 | 29, 35 | sseldd 3228 |
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-coll 4204 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-reu 2517 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-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-f1 5331 df-fo 5332 df-f1o 5333 df-fv 5334 df-ov 6020 df-oprab 6021 df-mpo 6022 df-topon 14734 df-cnp 14912 |
| This theorem is referenced by: cnpf2 14930 cnptopco 14945 cncnp 14953 cnptoprest2 14963 metcnpi 15238 metcnpi2 15239 metcnpi3 15240 limccnpcntop 15398 limccnp2lem 15399 limccnp2cntop 15400 |
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