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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 2229 |
. . . 4
| |
| 2 | eqid 2229 |
. . . 4
| |
| 3 | 1, 2 | iscn2 14874 |
. . 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 617 ax-in2 618 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-13 2202 ax-14 2203 ax-ext 2211 ax-sep 4202 ax-pow 4258 ax-pr 4293 ax-un 4524 ax-setind 4629 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-fal 1401 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ne 2401 df-ral 2513 df-rex 2514 df-rab 2517 df-v 2801 df-sbc 3029 df-csb 3125 df-dif 3199 df-un 3201 df-in 3203 df-ss 3210 df-pw 3651 df-sn 3672 df-pr 3673 df-op 3675 df-uni 3889 df-iun 3967 df-br 4084 df-opab 4146 df-mpt 4147 df-id 4384 df-xp 4725 df-rel 4726 df-cnv 4727 df-co 4728 df-dm 4729 df-rn 4730 df-res 4731 df-ima 4732 df-iota 5278 df-fun 5320 df-fn 5321 df-f 5322 df-fv 5326 df-ov 6004 df-oprab 6005 df-mpo 6006 df-1st 6286 df-2nd 6287 df-map 6797 df-top 14672 df-topon 14685 df-cn 14862 |
| This theorem is referenced by: cnco 14895 cnclima 14897 cnntri 14898 cnss2 14901 cncnpi 14902 cncnp2m 14905 cnrest 14909 cnrest2 14910 cnrest2r 14911 lmcn 14925 txcnmpt 14947 uptx 14948 txcn 14949 cnmpt21f 14966 hmeof1o 14983 hmeores 14989 txhmeo 14993 |
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