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| Mirrors > Home > MPE Home > Th. List > cnmpt1ds | Structured version Visualization version GIF version | ||
| Description: Continuity of the metric function; analogue of cnmpt12f 23946 which cannot be used directly because 𝐷 is not necessarily a function. (Contributed by Mario Carneiro, 5-Oct-2015.) |
| Ref | Expression |
|---|---|
| cnmpt1ds.d | ⊢ 𝐷 = (dist‘𝐺) |
| cnmpt1ds.j | ⊢ 𝐽 = (TopOpen‘𝐺) |
| cnmpt1ds.r | ⊢ 𝑅 = (topGen‘ran (,)) |
| cnmpt1ds.g | ⊢ (𝜑 → 𝐺 ∈ MetSp) |
| cnmpt1ds.k | ⊢ (𝜑 → 𝐾 ∈ (TopOn‘𝑋)) |
| cnmpt1ds.a | ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝐴) ∈ (𝐾 Cn 𝐽)) |
| cnmpt1ds.b | ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝐵) ∈ (𝐾 Cn 𝐽)) |
| Ref | Expression |
|---|---|
| cnmpt1ds | ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ (𝐴𝐷𝐵)) ∈ (𝐾 Cn 𝑅)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cnmpt1ds.k | . . . . . 6 ⊢ (𝜑 → 𝐾 ∈ (TopOn‘𝑋)) | |
| 2 | cnmpt1ds.g | . . . . . . . 8 ⊢ (𝜑 → 𝐺 ∈ MetSp) | |
| 3 | mstps 24735 | . . . . . . . 8 ⊢ (𝐺 ∈ MetSp → 𝐺 ∈ TopSp) | |
| 4 | 2, 3 | syl 18 | . . . . . . 7 ⊢ (𝜑 → 𝐺 ∈ TopSp) |
| 5 | eqid 2760 | . . . . . . . 8 ⊢ (Base‘𝐺) = (Base‘𝐺) | |
| 6 | cnmpt1ds.j | . . . . . . . 8 ⊢ 𝐽 = (TopOpen‘𝐺) | |
| 7 | 5, 6 | istps 23213 | . . . . . . 7 ⊢ (𝐺 ∈ TopSp ↔ 𝐽 ∈ (TopOn‘(Base‘𝐺))) |
| 8 | 4, 7 | sylib 221 | . . . . . 6 ⊢ (𝜑 → 𝐽 ∈ (TopOn‘(Base‘𝐺))) |
| 9 | cnmpt1ds.a | . . . . . 6 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝐴) ∈ (𝐾 Cn 𝐽)) | |
| 10 | cnf2 23528 | . . . . . 6 ⊢ ((𝐾 ∈ (TopOn‘𝑋) ∧ 𝐽 ∈ (TopOn‘(Base‘𝐺)) ∧ (𝑥 ∈ 𝑋 ↦ 𝐴) ∈ (𝐾 Cn 𝐽)) → (𝑥 ∈ 𝑋 ↦ 𝐴):𝑋⟶(Base‘𝐺)) | |
| 11 | 1, 8, 9, 10 | syl3anc 1398 | . . . . 5 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝐴):𝑋⟶(Base‘𝐺)) |
| 12 | 11 | fvmptelcdm 7101 | . . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ (Base‘𝐺)) |
| 13 | cnmpt1ds.b | . . . . . 6 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝐵) ∈ (𝐾 Cn 𝐽)) | |
| 14 | cnf2 23528 | . . . . . 6 ⊢ ((𝐾 ∈ (TopOn‘𝑋) ∧ 𝐽 ∈ (TopOn‘(Base‘𝐺)) ∧ (𝑥 ∈ 𝑋 ↦ 𝐵) ∈ (𝐾 Cn 𝐽)) → (𝑥 ∈ 𝑋 ↦ 𝐵):𝑋⟶(Base‘𝐺)) | |
| 15 | 1, 8, 13, 14 | syl3anc 1398 | . . . . 5 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝐵):𝑋⟶(Base‘𝐺)) |
| 16 | 15 | fvmptelcdm 7101 | . . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → 𝐵 ∈ (Base‘𝐺)) |
| 17 | 12, 16 | ovresd 7575 | . . 3 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (𝐴(𝐷 ↾ ((Base‘𝐺) × (Base‘𝐺)))𝐵) = (𝐴𝐷𝐵)) |
| 18 | 17 | mpteq2dva 5197 | . 2 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ (𝐴(𝐷 ↾ ((Base‘𝐺) × (Base‘𝐺)))𝐵)) = (𝑥 ∈ 𝑋 ↦ (𝐴𝐷𝐵))) |
| 19 | cnmpt1ds.d | . . . . 5 ⊢ 𝐷 = (dist‘𝐺) | |
| 20 | cnmpt1ds.r | . . . . 5 ⊢ 𝑅 = (topGen‘ran (,)) | |
| 21 | 5, 19, 6, 20 | msdcn 25122 | . . . 4 ⊢ (𝐺 ∈ MetSp → (𝐷 ↾ ((Base‘𝐺) × (Base‘𝐺))) ∈ ((𝐽 ×t 𝐽) Cn 𝑅)) |
| 22 | 2, 21 | syl 18 | . . 3 ⊢ (𝜑 → (𝐷 ↾ ((Base‘𝐺) × (Base‘𝐺))) ∈ ((𝐽 ×t 𝐽) Cn 𝑅)) |
| 23 | 1, 9, 13, 22 | cnmpt12f 23946 | . 2 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ (𝐴(𝐷 ↾ ((Base‘𝐺) × (Base‘𝐺)))𝐵)) ∈ (𝐾 Cn 𝑅)) |
| 24 | 18, 23 | eqeltrrd 2861 | 1 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ (𝐴𝐷𝐵)) ∈ (𝐾 Cn 𝑅)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2145 ↦ cmpt 5185 × cxp 5645 ran crn 5648 ↾ cres 5649 ⟶wf 6523 ‘cfv 6527 (class class class)co 7408 (,)cioo 13445 Basecbs 17348 distcds 17398 TopOpenctopn 17553 topGenctg 17569 TopOnctopon 23189 TopSpctps 23211 Cn ccn 23503 ×t ctx 23840 MetSpcms 24598 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7734 ax-cnex 11227 ax-resscn 11228 ax-1cn 11229 ax-icn 11230 ax-addcl 11231 ax-addrcl 11232 ax-mulcl 11233 ax-mulrcl 11234 ax-mulcom 11235 ax-addass 11236 ax-mulass 11237 ax-distr 11238 ax-i2m1 11239 ax-1ne0 11240 ax-1rid 11241 ax-rnegex 11242 ax-rrecex 11243 ax-cnre 11244 ax-pre-lttri 11245 ax-pre-lttrn 11246 ax-pre-ltadd 11247 ax-pre-mulgt0 11248 ax-pre-sup 11249 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-dif 3901 df-un 3903 df-in 3905 df-ss 3915 df-pss 3918 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-tp 4588 df-op 4590 df-uni 4867 df-int 4907 df-iun 4952 df-iin 4953 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5542 df-eprel 5547 df-po 5555 df-so 5556 df-fr 5600 df-se 5601 df-we 5602 df-xp 5653 df-rel 5654 df-cnv 5655 df-co 5656 df-dm 5657 df-rn 5658 df-res 5659 df-ima 5660 df-pred 6293 df-ord 6354 df-on 6355 df-lim 6356 df-suc 6357 df-iota 6483 df-fun 6529 df-fn 6530 df-f 6531 df-f1 6532 df-fo 6533 df-f1o 6534 df-fv 6535 df-isom 6536 df-riota 7365 df-ov 7411 df-oprab 7412 df-mpo 7413 df-of 7676 df-om 7861 df-1st 7984 df-2nd 7985 df-supp 8156 df-frecs 8277 df-wrecs 8308 df-recs 8357 df-rdg 8396 df-1o 8454 df-2o 8455 df-er 8695 df-ec 8697 df-map 8827 df-ixp 8904 df-en 8952 df-dom 8953 df-sdom 8954 df-fin 8955 df-fsupp 9332 df-fi 9381 df-sup 9412 df-inf 9413 df-oi 9482 df-card 9991 df-pnf 11316 df-mnf 11317 df-xr 11318 df-ltxr 11319 df-le 11320 df-sub 11514 df-neg 11515 df-div 11943 df-nn 12305 df-2 12374 df-3 12375 df-4 12376 df-5 12377 df-6 12378 df-7 12379 df-8 12380 df-9 12381 df-n0 12576 df-z 12663 df-dec 12784 df-uz 12935 df-q 13045 df-rp 13090 df-xneg 13210 df-xadd 13211 df-xmul 13212 df-ioo 13449 df-ioc 13450 df-ico 13451 df-icc 13452 df-fz 13609 df-fzo 13757 df-seq 14113 df-exp 14173 df-hash 14442 df-cj 15233 df-re 15234 df-im 15235 df-sqrt 15369 df-abs 15370 df-struct 17286 df-sets 17303 df-slot 17321 df-ndx 17333 df-base 17349 df-ress 17370 df-plusg 17402 df-mulr 17403 df-sca 17405 df-vsca 17406 df-ip 17407 df-tset 17408 df-ple 17409 df-ds 17411 df-hom 17413 df-cco 17414 df-rest 17554 df-topn 17555 df-0g 17573 df-gsum 17574 df-topgen 17575 df-pt 17576 df-prds 17579 df-ordt 17634 df-xrs 17635 df-qtop 17640 df-imas 17641 df-xps 17643 df-mre 17717 df-mrc 17718 df-acs 17720 df-ps 18701 df-tsr 18702 df-mgm 18777 df-sgrp 18869 df-mnd 18885 df-submnd 18940 df-mulg 19239 df-cntz 19492 df-cmn 19957 df-psmet 21631 df-xmet 21632 df-met 21633 df-bl 21634 df-mopn 21635 df-top 23173 df-topon 23190 df-topsp 23212 df-bases 23225 df-cn 23506 df-cnp 23507 df-tx 23842 df-hmeo 24035 df-xms 24600 df-ms 24601 df-tms 24602 |
| This theorem is used by: nmcn 25125 |
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