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| Mirrors > Home > MPE Home > Th. List > Mathboxes > fsumcnf | Structured version Visualization version GIF version | ||
| Description: A finite sum of functions to complex numbers from a common topological space is continuous, without disjoint var constraint x ph. The class expression for B normally contains free variables k and x to index it. (Contributed by Glauco Siliprandi, 20-Apr-2017.) |
| Ref | Expression |
|---|---|
| fsumcnf.1 | ⊢ 𝐾 = (TopOpen‘ℂfld) |
| fsumcnf.2 | ⊢ (𝜑 → 𝐽 ∈ (TopOn‘𝑋)) |
| fsumcnf.3 | ⊢ (𝜑 → 𝐴 ∈ Fin) |
| fsumcnf.4 | ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → (𝑥 ∈ 𝑋 ↦ 𝐵) ∈ (𝐽 Cn 𝐾)) |
| Ref | Expression |
|---|---|
| fsumcnf | ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ Σ𝑘 ∈ 𝐴 𝐵) ∈ (𝐽 Cn 𝐾)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nfcv 2899 | . . 3 ⊢ Ⅎ𝑦Σ𝑘 ∈ 𝐴 𝐵 | |
| 2 | nfcv 2899 | . . . 4 ⊢ Ⅎ𝑥𝐴 | |
| 3 | nfcsb1v 3874 | . . . 4 ⊢ Ⅎ𝑥⦋𝑦 / 𝑥⦌𝐵 | |
| 4 | 2, 3 | nfsum 15618 | . . 3 ⊢ Ⅎ𝑥Σ𝑘 ∈ 𝐴 ⦋𝑦 / 𝑥⦌𝐵 |
| 5 | csbeq1a 3864 | . . . 4 ⊢ (𝑥 = 𝑦 → 𝐵 = ⦋𝑦 / 𝑥⦌𝐵) | |
| 6 | 5 | sumeq2sdv 15630 | . . 3 ⊢ (𝑥 = 𝑦 → Σ𝑘 ∈ 𝐴 𝐵 = Σ𝑘 ∈ 𝐴 ⦋𝑦 / 𝑥⦌𝐵) |
| 7 | 1, 4, 6 | cbvmpt 5201 | . 2 ⊢ (𝑥 ∈ 𝑋 ↦ Σ𝑘 ∈ 𝐴 𝐵) = (𝑦 ∈ 𝑋 ↦ Σ𝑘 ∈ 𝐴 ⦋𝑦 / 𝑥⦌𝐵) |
| 8 | fsumcnf.1 | . . 3 ⊢ 𝐾 = (TopOpen‘ℂfld) | |
| 9 | fsumcnf.2 | . . 3 ⊢ (𝜑 → 𝐽 ∈ (TopOn‘𝑋)) | |
| 10 | fsumcnf.3 | . . 3 ⊢ (𝜑 → 𝐴 ∈ Fin) | |
| 11 | nfcv 2899 | . . . . 5 ⊢ Ⅎ𝑦𝐵 | |
| 12 | 11, 3, 5 | cbvmpt 5201 | . . . 4 ⊢ (𝑥 ∈ 𝑋 ↦ 𝐵) = (𝑦 ∈ 𝑋 ↦ ⦋𝑦 / 𝑥⦌𝐵) |
| 13 | fsumcnf.4 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → (𝑥 ∈ 𝑋 ↦ 𝐵) ∈ (𝐽 Cn 𝐾)) | |
| 14 | 12, 13 | eqeltrrid 2842 | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → (𝑦 ∈ 𝑋 ↦ ⦋𝑦 / 𝑥⦌𝐵) ∈ (𝐽 Cn 𝐾)) |
| 15 | 8, 9, 10, 14 | fsumcn 24821 | . 2 ⊢ (𝜑 → (𝑦 ∈ 𝑋 ↦ Σ𝑘 ∈ 𝐴 ⦋𝑦 / 𝑥⦌𝐵) ∈ (𝐽 Cn 𝐾)) |
| 16 | 7, 15 | eqeltrid 2841 | 1 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ Σ𝑘 ∈ 𝐴 𝐵) ∈ (𝐽 Cn 𝐾)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1542 ∈ wcel 2114 ⦋csb 3850 ↦ cmpt 5180 ‘cfv 6493 (class class class)co 7360 Fincfn 8887 Σcsu 15613 TopOpenctopn 17345 ℂfldccnfld 21313 TopOnctopon 22858 Cn ccn 23172 |
| 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 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-rep 5225 ax-sep 5242 ax-nul 5252 ax-pow 5311 ax-pr 5378 ax-un 7682 ax-inf2 9554 ax-cnex 11086 ax-resscn 11087 ax-1cn 11088 ax-icn 11089 ax-addcl 11090 ax-addrcl 11091 ax-mulcl 11092 ax-mulrcl 11093 ax-mulcom 11094 ax-addass 11095 ax-mulass 11096 ax-distr 11097 ax-i2m1 11098 ax-1ne0 11099 ax-1rid 11100 ax-rnegex 11101 ax-rrecex 11102 ax-cnre 11103 ax-pre-lttri 11104 ax-pre-lttrn 11105 ax-pre-ltadd 11106 ax-pre-mulgt0 11107 ax-pre-sup 11108 ax-addf 11109 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3062 df-rmo 3351 df-reu 3352 df-rab 3401 df-v 3443 df-sbc 3742 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4287 df-if 4481 df-pw 4557 df-sn 4582 df-pr 4584 df-tp 4586 df-op 4588 df-uni 4865 df-int 4904 df-iun 4949 df-iin 4950 df-br 5100 df-opab 5162 df-mpt 5181 df-tr 5207 df-id 5520 df-eprel 5525 df-po 5533 df-so 5534 df-fr 5578 df-se 5579 df-we 5580 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-pred 6260 df-ord 6321 df-on 6322 df-lim 6323 df-suc 6324 df-iota 6449 df-fun 6495 df-fn 6496 df-f 6497 df-f1 6498 df-fo 6499 df-f1o 6500 df-fv 6501 df-isom 6502 df-riota 7317 df-ov 7363 df-oprab 7364 df-mpo 7365 df-of 7624 df-om 7811 df-1st 7935 df-2nd 7936 df-supp 8105 df-frecs 8225 df-wrecs 8256 df-recs 8305 df-rdg 8343 df-1o 8399 df-2o 8400 df-er 8637 df-map 8769 df-ixp 8840 df-en 8888 df-dom 8889 df-sdom 8890 df-fin 8891 df-fsupp 9269 df-fi 9318 df-sup 9349 df-inf 9350 df-oi 9419 df-card 9855 df-pnf 11172 df-mnf 11173 df-xr 11174 df-ltxr 11175 df-le 11176 df-sub 11370 df-neg 11371 df-div 11799 df-nn 12150 df-2 12212 df-3 12213 df-4 12214 df-5 12215 df-6 12216 df-7 12217 df-8 12218 df-9 12219 df-n0 12406 df-z 12493 df-dec 12612 df-uz 12756 df-q 12866 df-rp 12910 df-xneg 13030 df-xadd 13031 df-xmul 13032 df-icc 13272 df-fz 13428 df-fzo 13575 df-seq 13929 df-exp 13989 df-hash 14258 df-cj 15026 df-re 15027 df-im 15028 df-sqrt 15162 df-abs 15163 df-clim 15415 df-sum 15614 df-struct 17078 df-sets 17095 df-slot 17113 df-ndx 17125 df-base 17141 df-ress 17162 df-plusg 17194 df-mulr 17195 df-starv 17196 df-sca 17197 df-vsca 17198 df-ip 17199 df-tset 17200 df-ple 17201 df-ds 17203 df-unif 17204 df-hom 17205 df-cco 17206 df-rest 17346 df-topn 17347 df-0g 17365 df-gsum 17366 df-topgen 17367 df-pt 17368 df-prds 17371 df-xrs 17427 df-qtop 17432 df-imas 17433 df-xps 17435 df-mre 17509 df-mrc 17510 df-acs 17512 df-mgm 18569 df-sgrp 18648 df-mnd 18664 df-submnd 18713 df-mulg 19002 df-cntz 19250 df-cmn 19715 df-psmet 21305 df-xmet 21306 df-met 21307 df-bl 21308 df-mopn 21309 df-cnfld 21314 df-top 22842 df-topon 22859 df-topsp 22881 df-bases 22894 df-cn 23175 df-cnp 23176 df-tx 23510 df-hmeo 23703 df-xms 24268 df-ms 24269 df-tms 24270 |
| This theorem is referenced by: refsumcn 45311 fsumcncf 46158 |
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