![]() |
Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
|
Mirrors > Home > MPE Home > Th. List > cnf2 | Structured version Visualization version GIF version |
Description: A continuous function is a mapping. (Contributed by Mario Carneiro, 21-Aug-2015.) |
Ref | Expression |
---|---|
cnf2 | ⊢ ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌) ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) → 𝐹:𝑋⟶𝑌) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | iscn 21840 | . . 3 ⊢ ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) → (𝐹 ∈ (𝐽 Cn 𝐾) ↔ (𝐹:𝑋⟶𝑌 ∧ ∀𝑥 ∈ 𝐾 (◡𝐹 “ 𝑥) ∈ 𝐽))) | |
2 | 1 | simprbda 502 | . 2 ⊢ (((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) → 𝐹:𝑋⟶𝑌) |
3 | 2 | 3impa 1107 | 1 ⊢ ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌) ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) → 𝐹:𝑋⟶𝑌) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 399 ∧ w3a 1084 ∈ wcel 2111 ∀wral 3106 ◡ccnv 5518 “ cima 5522 ⟶wf 6320 ‘cfv 6324 (class class class)co 7135 TopOnctopon 21515 Cn ccn 21829 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2770 ax-sep 5167 ax-nul 5174 ax-pow 5231 ax-pr 5295 ax-un 7441 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3an 1086 df-tru 1541 df-ex 1782 df-nf 1786 df-sb 2070 df-mo 2598 df-eu 2629 df-clab 2777 df-cleq 2791 df-clel 2870 df-nfc 2938 df-ral 3111 df-rex 3112 df-rab 3115 df-v 3443 df-sbc 3721 df-dif 3884 df-un 3886 df-in 3888 df-ss 3898 df-nul 4244 df-if 4426 df-pw 4499 df-sn 4526 df-pr 4528 df-op 4532 df-uni 4801 df-br 5031 df-opab 5093 df-mpt 5111 df-id 5425 df-xp 5525 df-rel 5526 df-cnv 5527 df-co 5528 df-dm 5529 df-rn 5530 df-res 5531 df-ima 5532 df-iota 6283 df-fun 6326 df-fn 6327 df-f 6328 df-fv 6332 df-ov 7138 df-oprab 7139 df-mpo 7140 df-map 8391 df-top 21499 df-topon 21516 df-cn 21832 |
This theorem is referenced by: iscncl 21874 cncls2 21878 cncls 21879 cnntr 21880 cnrest2 21891 cnrest2r 21892 ptcn 22232 txdis1cn 22240 lmcn2 22254 cnmpt11 22268 cnmpt1t 22270 cnmpt12 22272 cnmpt21 22276 cnmpt2t 22278 cnmpt22 22279 cnmpt22f 22280 cnmptcom 22283 cnmptkp 22285 cnmptk1 22286 cnmpt1k 22287 cnmptkk 22288 cnmptk1p 22290 cnmptk2 22291 cnmpt2k 22293 qtopss 22320 qtopeu 22321 qtopomap 22323 qtopcmap 22324 hmeof1o2 22368 xpstopnlem1 22414 xkocnv 22419 xkohmeo 22420 qtophmeo 22422 cnmpt1plusg 22692 cnmpt2plusg 22693 tsmsmhm 22751 cnmpt1vsca 22799 cnmpt2vsca 22800 cnmpt1ds 23447 cnmpt2ds 23448 fsumcn 23475 cnmpopc 23533 htpyco1 23583 htpyco2 23584 phtpyco2 23595 pi1xfrf 23658 pi1xfr 23660 pi1xfrcnvlem 23661 pi1xfrcnv 23662 pi1cof 23664 pi1coghm 23666 cnmpt1ip 23851 cnmpt2ip 23852 txsconnlem 32600 txsconn 32601 cvmlift3lem6 32684 fcnre 41654 refsumcn 41659 refsum2cnlem1 41666 fprodcnlem 42241 icccncfext 42529 itgsubsticclem 42617 |
Copyright terms: Public domain | W3C validator |