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Mirrors > Home > MPE Home > Th. List > cnf | Structured version Visualization version GIF version |
Description: A continuous function is a mapping. (Contributed by FL, 8-Dec-2006.) (Revised by Mario Carneiro, 21-Aug-2015.) |
Ref | Expression |
---|---|
iscnp2.1 | ⊢ 𝑋 = ∪ 𝐽 |
iscnp2.2 | ⊢ 𝑌 = ∪ 𝐾 |
Ref | Expression |
---|---|
cnf | ⊢ (𝐹 ∈ (𝐽 Cn 𝐾) → 𝐹:𝑋⟶𝑌) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | iscnp2.1 | . . . 4 ⊢ 𝑋 = ∪ 𝐽 | |
2 | iscnp2.2 | . . . 4 ⊢ 𝑌 = ∪ 𝐾 | |
3 | 1, 2 | iscn2 20852 | . . 3 ⊢ (𝐹 ∈ (𝐽 Cn 𝐾) ↔ ((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋⟶𝑌 ∧ ∀𝑥 ∈ 𝐾 (◡𝐹 “ 𝑥) ∈ 𝐽))) |
4 | 3 | simprbi 479 | . 2 ⊢ (𝐹 ∈ (𝐽 Cn 𝐾) → (𝐹:𝑋⟶𝑌 ∧ ∀𝑥 ∈ 𝐾 (◡𝐹 “ 𝑥) ∈ 𝐽)) |
5 | 4 | simpld 474 | 1 ⊢ (𝐹 ∈ (𝐽 Cn 𝐾) → 𝐹:𝑋⟶𝑌) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 383 = wceq 1475 ∈ wcel 1977 ∀wral 2896 ∪ cuni 4372 ◡ccnv 5037 “ cima 5041 ⟶wf 5800 (class class class)co 6549 Topctop 20517 Cn ccn 20838 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 ax-un 6847 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-ral 2901 df-rex 2902 df-rab 2905 df-v 3175 df-sbc 3403 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-op 4132 df-uni 4373 df-br 4584 df-opab 4644 df-mpt 4645 df-id 4953 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-res 5050 df-ima 5051 df-iota 5768 df-fun 5806 df-fn 5807 df-f 5808 df-fv 5812 df-ov 6552 df-oprab 6553 df-mpt2 6554 df-map 7746 df-top 20521 df-topon 20523 df-cn 20841 |
This theorem is referenced by: cnco 20880 cnclima 20882 cnntri 20885 cnclsi 20886 cnss1 20890 cnss2 20891 cncnpi 20892 cncnp2 20895 cnrest 20899 cnrest2 20900 cnt0 20960 cnt1 20964 cnhaus 20968 dnsconst 20992 cncmp 21005 rncmp 21009 imacmp 21010 cnconn 21035 conima 21038 concn 21039 2ndcomap 21071 kgencn2 21170 kgencn3 21171 txcnmpt 21237 uptx 21238 txcn 21239 hauseqlcld 21259 xkohaus 21266 xkoptsub 21267 xkopjcn 21269 xkoco1cn 21270 xkoco2cn 21271 xkococnlem 21272 cnmpt11f 21277 cnmpt21f 21285 hmeocnv 21375 hmeores 21384 txhmeo 21416 cnextfres 21683 bndth 22565 evth 22566 evth2 22567 htpyco2 22586 phtpyco2 22597 reparphti 22605 copco 22626 pcopt 22630 pcopt2 22631 pcoass 22632 pcorevlem 22634 pcorev2 22636 hauseqcn 29269 pl1cn 29329 rrhf 29370 esumcocn 29469 cnmbfm 29652 cnpcon 30466 ptpcon 30469 sconpi1 30475 txsconlem 30476 cvxscon 30479 cvmseu 30512 cvmopnlem 30514 cvmfolem 30515 cvmliftmolem1 30517 cvmliftmolem2 30518 cvmliftlem3 30523 cvmliftlem6 30526 cvmliftlem7 30527 cvmliftlem8 30528 cvmliftlem9 30529 cvmliftlem10 30530 cvmliftlem11 30531 cvmliftlem13 30532 cvmliftlem15 30534 cvmlift2lem3 30541 cvmlift2lem5 30543 cvmlift2lem7 30545 cvmlift2lem9 30547 cvmlift2lem10 30548 cvmliftphtlem 30553 cvmlift3lem1 30555 cvmlift3lem2 30556 cvmlift3lem4 30558 cvmlift3lem5 30559 cvmlift3lem6 30560 cvmlift3lem7 30561 cvmlift3lem8 30562 cvmlift3lem9 30563 poimirlem31 32610 poimir 32612 broucube 32613 cnres2 32732 cnresima 32733 hausgraph 36809 refsum2cnlem1 38219 itgsubsticclem 38867 stoweidlem62 38955 cnfsmf 39627 |
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