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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 21837 | . . 3 ⊢ ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) → (𝐹 ∈ (𝐽 Cn 𝐾) ↔ (𝐹:𝑋⟶𝑌 ∧ ∀𝑥 ∈ 𝐾 (◡𝐹 “ 𝑥) ∈ 𝐽))) | |
2 | 1 | simprbda 501 | . 2 ⊢ (((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) → 𝐹:𝑋⟶𝑌) |
3 | 2 | 3impa 1106 | 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 398 ∧ w3a 1083 ∈ wcel 2110 ∀wral 3138 ◡ccnv 5549 “ cima 5553 ⟶wf 6346 ‘cfv 6350 (class class class)co 7150 TopOnctopon 21512 Cn ccn 21826 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2156 ax-12 2172 ax-ext 2793 ax-sep 5196 ax-nul 5203 ax-pow 5259 ax-pr 5322 ax-un 7455 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ral 3143 df-rex 3144 df-rab 3147 df-v 3497 df-sbc 3773 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-nul 4292 df-if 4468 df-pw 4541 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4833 df-br 5060 df-opab 5122 df-mpt 5140 df-id 5455 df-xp 5556 df-rel 5557 df-cnv 5558 df-co 5559 df-dm 5560 df-rn 5561 df-res 5562 df-ima 5563 df-iota 6309 df-fun 6352 df-fn 6353 df-f 6354 df-fv 6358 df-ov 7153 df-oprab 7154 df-mpo 7155 df-map 8402 df-top 21496 df-topon 21513 df-cn 21829 |
This theorem is referenced by: iscncl 21871 cncls2 21875 cncls 21876 cnntr 21877 cnrest2 21888 cnrest2r 21889 ptcn 22229 txdis1cn 22237 lmcn2 22251 cnmpt11 22265 cnmpt1t 22267 cnmpt12 22269 cnmpt21 22273 cnmpt2t 22275 cnmpt22 22276 cnmpt22f 22277 cnmptcom 22280 cnmptkp 22282 cnmptk1 22283 cnmpt1k 22284 cnmptkk 22285 cnmptk1p 22287 cnmptk2 22288 cnmpt2k 22290 qtopss 22317 qtopeu 22318 qtopomap 22320 qtopcmap 22321 hmeof1o2 22365 xpstopnlem1 22411 xkocnv 22416 xkohmeo 22417 qtophmeo 22419 cnmpt1plusg 22689 cnmpt2plusg 22690 tsmsmhm 22748 cnmpt1vsca 22796 cnmpt2vsca 22797 cnmpt1ds 23444 cnmpt2ds 23445 fsumcn 23472 cnmpopc 23526 htpyco1 23576 htpyco2 23577 phtpyco2 23588 pi1xfrf 23651 pi1xfr 23653 pi1xfrcnvlem 23654 pi1xfrcnv 23655 pi1cof 23657 pi1coghm 23659 cnmpt1ip 23844 cnmpt2ip 23845 txsconnlem 32482 txsconn 32483 cvmlift3lem6 32566 fcnre 41275 refsumcn 41280 refsum2cnlem1 41287 fprodcnlem 41872 icccncfext 42162 itgsubsticclem 42252 |
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