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Mirrors > Home > MPE Home > Th. List > fprodsplitf | Structured version Visualization version GIF version |
Description: Split a finite product into two parts. A version of fprodsplit 16014 using bound-variable hypotheses instead of distinct variable conditions. (Contributed by Glauco Siliprandi, 5-Apr-2020.) |
Ref | Expression |
---|---|
fprodsplitf.kph | ⊢ Ⅎ𝑘𝜑 |
fprodsplitf.in | ⊢ (𝜑 → (𝐴 ∩ 𝐵) = ∅) |
fprodsplitf.un | ⊢ (𝜑 → 𝑈 = (𝐴 ∪ 𝐵)) |
fprodsplitf.fi | ⊢ (𝜑 → 𝑈 ∈ Fin) |
fprodsplitf.c | ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑈) → 𝐶 ∈ ℂ) |
Ref | Expression |
---|---|
fprodsplitf | ⊢ (𝜑 → ∏𝑘 ∈ 𝑈 𝐶 = (∏𝑘 ∈ 𝐴 𝐶 · ∏𝑘 ∈ 𝐵 𝐶)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fprodsplitf.in | . . 3 ⊢ (𝜑 → (𝐴 ∩ 𝐵) = ∅) | |
2 | fprodsplitf.un | . . 3 ⊢ (𝜑 → 𝑈 = (𝐴 ∪ 𝐵)) | |
3 | fprodsplitf.fi | . . 3 ⊢ (𝜑 → 𝑈 ∈ Fin) | |
4 | fprodsplitf.kph | . . . . . 6 ⊢ Ⅎ𝑘𝜑 | |
5 | nfv 1913 | . . . . . 6 ⊢ Ⅎ𝑘 𝑗 ∈ 𝑈 | |
6 | 4, 5 | nfan 1898 | . . . . 5 ⊢ Ⅎ𝑘(𝜑 ∧ 𝑗 ∈ 𝑈) |
7 | nfcsb1v 3946 | . . . . . 6 ⊢ Ⅎ𝑘⦋𝑗 / 𝑘⦌𝐶 | |
8 | 7 | nfel1 2925 | . . . . 5 ⊢ Ⅎ𝑘⦋𝑗 / 𝑘⦌𝐶 ∈ ℂ |
9 | 6, 8 | nfim 1895 | . . . 4 ⊢ Ⅎ𝑘((𝜑 ∧ 𝑗 ∈ 𝑈) → ⦋𝑗 / 𝑘⦌𝐶 ∈ ℂ) |
10 | eleq1w 2827 | . . . . . 6 ⊢ (𝑘 = 𝑗 → (𝑘 ∈ 𝑈 ↔ 𝑗 ∈ 𝑈)) | |
11 | 10 | anbi2d 629 | . . . . 5 ⊢ (𝑘 = 𝑗 → ((𝜑 ∧ 𝑘 ∈ 𝑈) ↔ (𝜑 ∧ 𝑗 ∈ 𝑈))) |
12 | csbeq1a 3935 | . . . . . 6 ⊢ (𝑘 = 𝑗 → 𝐶 = ⦋𝑗 / 𝑘⦌𝐶) | |
13 | 12 | eleq1d 2829 | . . . . 5 ⊢ (𝑘 = 𝑗 → (𝐶 ∈ ℂ ↔ ⦋𝑗 / 𝑘⦌𝐶 ∈ ℂ)) |
14 | 11, 13 | imbi12d 344 | . . . 4 ⊢ (𝑘 = 𝑗 → (((𝜑 ∧ 𝑘 ∈ 𝑈) → 𝐶 ∈ ℂ) ↔ ((𝜑 ∧ 𝑗 ∈ 𝑈) → ⦋𝑗 / 𝑘⦌𝐶 ∈ ℂ))) |
15 | fprodsplitf.c | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑈) → 𝐶 ∈ ℂ) | |
16 | 9, 14, 15 | chvarfv 2241 | . . 3 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑈) → ⦋𝑗 / 𝑘⦌𝐶 ∈ ℂ) |
17 | 1, 2, 3, 16 | fprodsplit 16014 | . 2 ⊢ (𝜑 → ∏𝑗 ∈ 𝑈 ⦋𝑗 / 𝑘⦌𝐶 = (∏𝑗 ∈ 𝐴 ⦋𝑗 / 𝑘⦌𝐶 · ∏𝑗 ∈ 𝐵 ⦋𝑗 / 𝑘⦌𝐶)) |
18 | nfcv 2908 | . . 3 ⊢ Ⅎ𝑗𝐶 | |
19 | 18, 7, 12 | cbvprodi 15963 | . 2 ⊢ ∏𝑘 ∈ 𝑈 𝐶 = ∏𝑗 ∈ 𝑈 ⦋𝑗 / 𝑘⦌𝐶 |
20 | 18, 7, 12 | cbvprodi 15963 | . . 3 ⊢ ∏𝑘 ∈ 𝐴 𝐶 = ∏𝑗 ∈ 𝐴 ⦋𝑗 / 𝑘⦌𝐶 |
21 | 18, 7, 12 | cbvprodi 15963 | . . 3 ⊢ ∏𝑘 ∈ 𝐵 𝐶 = ∏𝑗 ∈ 𝐵 ⦋𝑗 / 𝑘⦌𝐶 |
22 | 20, 21 | oveq12i 7460 | . 2 ⊢ (∏𝑘 ∈ 𝐴 𝐶 · ∏𝑘 ∈ 𝐵 𝐶) = (∏𝑗 ∈ 𝐴 ⦋𝑗 / 𝑘⦌𝐶 · ∏𝑗 ∈ 𝐵 ⦋𝑗 / 𝑘⦌𝐶) |
23 | 17, 19, 22 | 3eqtr4g 2805 | 1 ⊢ (𝜑 → ∏𝑘 ∈ 𝑈 𝐶 = (∏𝑘 ∈ 𝐴 𝐶 · ∏𝑘 ∈ 𝐵 𝐶)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 395 = wceq 1537 Ⅎwnf 1781 ∈ wcel 2108 ⦋csb 3921 ∪ cun 3974 ∩ cin 3975 ∅c0 4352 (class class class)co 7448 Fincfn 9003 ℂcc 11182 · cmul 11189 ∏cprod 15951 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1793 ax-4 1807 ax-5 1909 ax-6 1967 ax-7 2007 ax-8 2110 ax-9 2118 ax-10 2141 ax-11 2158 ax-12 2178 ax-ext 2711 ax-rep 5303 ax-sep 5317 ax-nul 5324 ax-pow 5383 ax-pr 5447 ax-un 7770 ax-inf2 9710 ax-cnex 11240 ax-resscn 11241 ax-1cn 11242 ax-icn 11243 ax-addcl 11244 ax-addrcl 11245 ax-mulcl 11246 ax-mulrcl 11247 ax-mulcom 11248 ax-addass 11249 ax-mulass 11250 ax-distr 11251 ax-i2m1 11252 ax-1ne0 11253 ax-1rid 11254 ax-rnegex 11255 ax-rrecex 11256 ax-cnre 11257 ax-pre-lttri 11258 ax-pre-lttrn 11259 ax-pre-ltadd 11260 ax-pre-mulgt0 11261 ax-pre-sup 11262 |
This theorem depends on definitions: df-bi 207 df-an 396 df-or 847 df-3or 1088 df-3an 1089 df-tru 1540 df-fal 1550 df-ex 1778 df-nf 1782 df-sb 2065 df-mo 2543 df-eu 2572 df-clab 2718 df-cleq 2732 df-clel 2819 df-nfc 2895 df-ne 2947 df-nel 3053 df-ral 3068 df-rex 3077 df-rmo 3388 df-reu 3389 df-rab 3444 df-v 3490 df-sbc 3805 df-csb 3922 df-dif 3979 df-un 3981 df-in 3983 df-ss 3993 df-pss 3996 df-nul 4353 df-if 4549 df-pw 4624 df-sn 4649 df-pr 4651 df-op 4655 df-uni 4932 df-int 4971 df-iun 5017 df-br 5167 df-opab 5229 df-mpt 5250 df-tr 5284 df-id 5593 df-eprel 5599 df-po 5607 df-so 5608 df-fr 5652 df-se 5653 df-we 5654 df-xp 5706 df-rel 5707 df-cnv 5708 df-co 5709 df-dm 5710 df-rn 5711 df-res 5712 df-ima 5713 df-pred 6332 df-ord 6398 df-on 6399 df-lim 6400 df-suc 6401 df-iota 6525 df-fun 6575 df-fn 6576 df-f 6577 df-f1 6578 df-fo 6579 df-f1o 6580 df-fv 6581 df-isom 6582 df-riota 7404 df-ov 7451 df-oprab 7452 df-mpo 7453 df-om 7904 df-1st 8030 df-2nd 8031 df-frecs 8322 df-wrecs 8353 df-recs 8427 df-rdg 8466 df-1o 8522 df-er 8763 df-en 9004 df-dom 9005 df-sdom 9006 df-fin 9007 df-sup 9511 df-oi 9579 df-card 10008 df-pnf 11326 df-mnf 11327 df-xr 11328 df-ltxr 11329 df-le 11330 df-sub 11522 df-neg 11523 df-div 11948 df-nn 12294 df-2 12356 df-3 12357 df-n0 12554 df-z 12640 df-uz 12904 df-rp 13058 df-fz 13568 df-fzo 13712 df-seq 14053 df-exp 14113 df-hash 14380 df-cj 15148 df-re 15149 df-im 15150 df-sqrt 15284 df-abs 15285 df-clim 15534 df-prod 15952 |
This theorem is referenced by: fprodsplitsn 16037 fprodsplit1f 16038 |
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