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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 21843 | . . 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 2114 ∀wral 3138 ◡ccnv 5554 “ cima 5558 ⟶wf 6351 ‘cfv 6355 (class class class)co 7156 TopOnctopon 21518 Cn ccn 21832 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 ax-sep 5203 ax-nul 5210 ax-pow 5266 ax-pr 5330 ax-un 7461 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ral 3143 df-rex 3144 df-rab 3147 df-v 3496 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 4568 df-pr 4570 df-op 4574 df-uni 4839 df-br 5067 df-opab 5129 df-mpt 5147 df-id 5460 df-xp 5561 df-rel 5562 df-cnv 5563 df-co 5564 df-dm 5565 df-rn 5566 df-res 5567 df-ima 5568 df-iota 6314 df-fun 6357 df-fn 6358 df-f 6359 df-fv 6363 df-ov 7159 df-oprab 7160 df-mpo 7161 df-map 8408 df-top 21502 df-topon 21519 df-cn 21835 |
This theorem is referenced by: iscncl 21877 cncls2 21881 cncls 21882 cnntr 21883 cnrest2 21894 cnrest2r 21895 ptcn 22235 txdis1cn 22243 lmcn2 22257 cnmpt11 22271 cnmpt1t 22273 cnmpt12 22275 cnmpt21 22279 cnmpt2t 22281 cnmpt22 22282 cnmpt22f 22283 cnmptcom 22286 cnmptkp 22288 cnmptk1 22289 cnmpt1k 22290 cnmptkk 22291 cnmptk1p 22293 cnmptk2 22294 cnmpt2k 22296 qtopss 22323 qtopeu 22324 qtopomap 22326 qtopcmap 22327 hmeof1o2 22371 xpstopnlem1 22417 xkocnv 22422 xkohmeo 22423 qtophmeo 22425 cnmpt1plusg 22695 cnmpt2plusg 22696 tsmsmhm 22754 cnmpt1vsca 22802 cnmpt2vsca 22803 cnmpt1ds 23450 cnmpt2ds 23451 fsumcn 23478 cnmpopc 23532 htpyco1 23582 htpyco2 23583 phtpyco2 23594 pi1xfrf 23657 pi1xfr 23659 pi1xfrcnvlem 23660 pi1xfrcnv 23661 pi1cof 23663 pi1coghm 23665 cnmpt1ip 23850 cnmpt2ip 23851 txsconnlem 32487 txsconn 32488 cvmlift3lem6 32571 fcnre 41302 refsumcn 41307 refsum2cnlem1 41314 fprodcnlem 41900 icccncfext 42190 itgsubsticclem 42280 |
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