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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 20849 | . . 3 ⊢ ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) → (𝐹 ∈ (𝐽 Cn 𝐾) ↔ (𝐹:𝑋⟶𝑌 ∧ ∀𝑥 ∈ 𝐾 (◡𝐹 “ 𝑥) ∈ 𝐽))) | |
2 | 1 | simprbda 651 | . 2 ⊢ (((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) → 𝐹:𝑋⟶𝑌) |
3 | 2 | 3impa 1251 | 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 383 ∧ w3a 1031 ∈ wcel 1977 ∀wral 2896 ◡ccnv 5037 “ cima 5041 ⟶wf 5800 ‘cfv 5804 (class class class)co 6549 TopOnctopon 20518 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: iscncl 20883 cncls2 20887 cncls 20888 cnntr 20889 cnrest2 20900 cnrest2r 20901 ptcn 21240 txdis1cn 21248 lmcn2 21262 cnmpt11 21276 cnmpt1t 21278 cnmpt12 21280 cnmpt21 21284 cnmpt2t 21286 cnmpt22 21287 cnmpt22f 21288 cnmptcom 21291 cnmptkp 21293 cnmptk1 21294 cnmpt1k 21295 cnmptkk 21296 cnmptk1p 21298 cnmptk2 21299 cnmpt2k 21301 qtopss 21328 qtopeu 21329 qtopomap 21331 qtopcmap 21332 hmeof1o2 21376 xpstopnlem1 21422 xkocnv 21427 xkohmeo 21428 qtophmeo 21430 cnmpt1plusg 21701 cnmpt2plusg 21702 tsmsmhm 21759 cnmpt1vsca 21807 cnmpt2vsca 21808 cnmpt1ds 22453 cnmpt2ds 22454 fsumcn 22481 cnmpt2pc 22535 htpyco1 22585 htpyco2 22586 phtpyco2 22597 pi1xfrf 22661 pi1xfr 22663 pi1xfrcnvlem 22664 pi1xfrcnv 22665 pi1cof 22667 pi1coghm 22669 cnmpt1ip 22854 cnmpt2ip 22855 txsconlem 30476 txscon 30477 cvmlift3lem6 30560 fcnre 38207 refsumcn 38212 refsum2cnlem1 38219 fprodcnlem 38666 icccncfext 38773 itgsubsticclem 38867 |
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