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| Mirrors > Home > ILE Home > Th. List > cnmptcom | Unicode version | ||
| Description: The argument converse of a continuous function is continuous. (Contributed by Mario Carneiro, 6-Jun-2014.) |
| Ref | Expression |
|---|---|
| cnmptcom.3 |
|
| cnmptcom.4 |
|
| cnmptcom.6 |
|
| Ref | Expression |
|---|---|
| cnmptcom |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cnmptcom.3 |
. . . . . . . . 9
| |
| 2 | cnmptcom.4 |
. . . . . . . . 9
| |
| 3 | txtopon 14985 |
. . . . . . . . 9
| |
| 4 | 1, 2, 3 | syl2anc 411 |
. . . . . . . 8
|
| 5 | cnmptcom.6 |
. . . . . . . . . 10
| |
| 6 | cntop2 14925 |
. . . . . . . . . 10
| |
| 7 | 5, 6 | syl 14 |
. . . . . . . . 9
|
| 8 | toptopon2 14742 |
. . . . . . . . 9
| |
| 9 | 7, 8 | sylib 122 |
. . . . . . . 8
|
| 10 | cnf2 14928 |
. . . . . . . 8
| |
| 11 | 4, 9, 5, 10 | syl3anc 1273 |
. . . . . . 7
|
| 12 | eqid 2231 |
. . . . . . . . 9
| |
| 13 | 12 | fmpo 6365 |
. . . . . . . 8
|
| 14 | ralcom 2696 |
. . . . . . . 8
| |
| 15 | 13, 14 | bitr3i 186 |
. . . . . . 7
|
| 16 | 11, 15 | sylib 122 |
. . . . . 6
|
| 17 | eqid 2231 |
. . . . . . 7
| |
| 18 | 17 | fmpo 6365 |
. . . . . 6
|
| 19 | 16, 18 | sylib 122 |
. . . . 5
|
| 20 | 19 | ffnd 5483 |
. . . 4
|
| 21 | fnovim 6129 |
. . . 4
| |
| 22 | 20, 21 | syl 14 |
. . 3
|
| 23 | nfcv 2374 |
. . . . . . 7
| |
| 24 | nfcv 2374 |
. . . . . . 7
| |
| 25 | nfcv 2374 |
. . . . . . 7
| |
| 26 | nfv 1576 |
. . . . . . . 8
| |
| 27 | nfcv 2374 |
. . . . . . . . . 10
| |
| 28 | nfmpo2 6088 |
. . . . . . . . . 10
| |
| 29 | 27, 28, 23 | nfov 6047 |
. . . . . . . . 9
|
| 30 | nfmpo1 6087 |
. . . . . . . . . 10
| |
| 31 | 23, 30, 27 | nfov 6047 |
. . . . . . . . 9
|
| 32 | 29, 31 | nfeq 2382 |
. . . . . . . 8
|
| 33 | 26, 32 | nfim 1620 |
. . . . . . 7
|
| 34 | nfv 1576 |
. . . . . . . 8
| |
| 35 | nfmpo1 6087 |
. . . . . . . . . 10
| |
| 36 | 25, 35, 24 | nfov 6047 |
. . . . . . . . 9
|
| 37 | nfmpo2 6088 |
. . . . . . . . . 10
| |
| 38 | 24, 37, 25 | nfov 6047 |
. . . . . . . . 9
|
| 39 | 36, 38 | nfeq 2382 |
. . . . . . . 8
|
| 40 | 34, 39 | nfim 1620 |
. . . . . . 7
|
| 41 | oveq2 6025 |
. . . . . . . . 9
| |
| 42 | oveq1 6024 |
. . . . . . . . 9
| |
| 43 | 41, 42 | eqeq12d 2246 |
. . . . . . . 8
|
| 44 | 43 | imbi2d 230 |
. . . . . . 7
|
| 45 | oveq1 6024 |
. . . . . . . . 9
| |
| 46 | oveq2 6025 |
. . . . . . . . 9
| |
| 47 | 45, 46 | eqeq12d 2246 |
. . . . . . . 8
|
| 48 | 47 | imbi2d 230 |
. . . . . . 7
|
| 49 | rsp2 2582 |
. . . . . . . . 9
| |
| 50 | 49, 16 | syl11 31 |
. . . . . . . 8
|
| 51 | 12 | ovmpt4g 6143 |
. . . . . . . . . . 11
|
| 52 | 51 | 3com12 1233 |
. . . . . . . . . 10
|
| 53 | 17 | ovmpt4g 6143 |
. . . . . . . . . 10
|
| 54 | 52, 53 | eqtr4d 2267 |
. . . . . . . . 9
|
| 55 | 54 | 3expia 1231 |
. . . . . . . 8
|
| 56 | 50, 55 | syld 45 |
. . . . . . 7
|
| 57 | 23, 24, 25, 33, 40, 44, 48, 56 | vtocl2gaf 2871 |
. . . . . 6
|
| 58 | 57 | com12 30 |
. . . . 5
|
| 59 | 58 | 3impib 1227 |
. . . 4
|
| 60 | 59 | mpoeq3dva 6084 |
. . 3
|
| 61 | 22, 60 | eqtr4d 2267 |
. 2
|
| 62 | 2, 1 | cnmpt2nd 15012 |
. . 3
|
| 63 | 2, 1 | cnmpt1st 15011 |
. . 3
|
| 64 | 2, 1, 62, 63, 5 | cnmpt22f 15018 |
. 2
|
| 65 | 61, 64 | eqeltrd 2308 |
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-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-f1 5331 df-fo 5332 df-f1o 5333 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-cn 14911 df-tx 14976 |
| This theorem is referenced by: (None) |
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