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Mirrors > Home > ILE Home > Th. List > fprodsplitf | GIF version |
Description: Split a finite product into two parts. A version of fprodsplit 11619 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 1538 | . . . . . 6 ⊢ Ⅎ𝑘 𝑗 ∈ 𝑈 | |
6 | 4, 5 | nfan 1575 | . . . . 5 ⊢ Ⅎ𝑘(𝜑 ∧ 𝑗 ∈ 𝑈) |
7 | nfcsb1v 3102 | . . . . . 6 ⊢ Ⅎ𝑘⦋𝑗 / 𝑘⦌𝐶 | |
8 | 7 | nfel1 2340 | . . . . 5 ⊢ Ⅎ𝑘⦋𝑗 / 𝑘⦌𝐶 ∈ ℂ |
9 | 6, 8 | nfim 1582 | . . . 4 ⊢ Ⅎ𝑘((𝜑 ∧ 𝑗 ∈ 𝑈) → ⦋𝑗 / 𝑘⦌𝐶 ∈ ℂ) |
10 | eleq1w 2248 | . . . . . 6 ⊢ (𝑘 = 𝑗 → (𝑘 ∈ 𝑈 ↔ 𝑗 ∈ 𝑈)) | |
11 | 10 | anbi2d 464 | . . . . 5 ⊢ (𝑘 = 𝑗 → ((𝜑 ∧ 𝑘 ∈ 𝑈) ↔ (𝜑 ∧ 𝑗 ∈ 𝑈))) |
12 | csbeq1a 3078 | . . . . . 6 ⊢ (𝑘 = 𝑗 → 𝐶 = ⦋𝑗 / 𝑘⦌𝐶) | |
13 | 12 | eleq1d 2256 | . . . . 5 ⊢ (𝑘 = 𝑗 → (𝐶 ∈ ℂ ↔ ⦋𝑗 / 𝑘⦌𝐶 ∈ ℂ)) |
14 | 11, 13 | imbi12d 234 | . . . 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 1710 | . . 3 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑈) → ⦋𝑗 / 𝑘⦌𝐶 ∈ ℂ) |
17 | 1, 2, 3, 16 | fprodsplit 11619 | . 2 ⊢ (𝜑 → ∏𝑗 ∈ 𝑈 ⦋𝑗 / 𝑘⦌𝐶 = (∏𝑗 ∈ 𝐴 ⦋𝑗 / 𝑘⦌𝐶 · ∏𝑗 ∈ 𝐵 ⦋𝑗 / 𝑘⦌𝐶)) |
18 | nfcv 2329 | . . 3 ⊢ Ⅎ𝑗𝐶 | |
19 | 18, 7, 12 | cbvprodi 11582 | . 2 ⊢ ∏𝑘 ∈ 𝑈 𝐶 = ∏𝑗 ∈ 𝑈 ⦋𝑗 / 𝑘⦌𝐶 |
20 | 18, 7, 12 | cbvprodi 11582 | . . 3 ⊢ ∏𝑘 ∈ 𝐴 𝐶 = ∏𝑗 ∈ 𝐴 ⦋𝑗 / 𝑘⦌𝐶 |
21 | 18, 7, 12 | cbvprodi 11582 | . . 3 ⊢ ∏𝑘 ∈ 𝐵 𝐶 = ∏𝑗 ∈ 𝐵 ⦋𝑗 / 𝑘⦌𝐶 |
22 | 20, 21 | oveq12i 5900 | . 2 ⊢ (∏𝑘 ∈ 𝐴 𝐶 · ∏𝑘 ∈ 𝐵 𝐶) = (∏𝑗 ∈ 𝐴 ⦋𝑗 / 𝑘⦌𝐶 · ∏𝑗 ∈ 𝐵 ⦋𝑗 / 𝑘⦌𝐶) |
23 | 17, 19, 22 | 3eqtr4g 2245 | 1 ⊢ (𝜑 → ∏𝑘 ∈ 𝑈 𝐶 = (∏𝑘 ∈ 𝐴 𝐶 · ∏𝑘 ∈ 𝐵 𝐶)) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 104 = wceq 1363 Ⅎwnf 1470 ∈ wcel 2158 ⦋csb 3069 ∪ cun 3139 ∩ cin 3140 ∅c0 3434 (class class class)co 5888 Fincfn 6754 ℂcc 7823 · cmul 7830 ∏cprod 11572 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 615 ax-in2 616 ax-io 710 ax-5 1457 ax-7 1458 ax-gen 1459 ax-ie1 1503 ax-ie2 1504 ax-8 1514 ax-10 1515 ax-11 1516 ax-i12 1517 ax-bndl 1519 ax-4 1520 ax-17 1536 ax-i9 1540 ax-ial 1544 ax-i5r 1545 ax-13 2160 ax-14 2161 ax-ext 2169 ax-coll 4130 ax-sep 4133 ax-nul 4141 ax-pow 4186 ax-pr 4221 ax-un 4445 ax-setind 4548 ax-iinf 4599 ax-cnex 7916 ax-resscn 7917 ax-1cn 7918 ax-1re 7919 ax-icn 7920 ax-addcl 7921 ax-addrcl 7922 ax-mulcl 7923 ax-mulrcl 7924 ax-addcom 7925 ax-mulcom 7926 ax-addass 7927 ax-mulass 7928 ax-distr 7929 ax-i2m1 7930 ax-0lt1 7931 ax-1rid 7932 ax-0id 7933 ax-rnegex 7934 ax-precex 7935 ax-cnre 7936 ax-pre-ltirr 7937 ax-pre-ltwlin 7938 ax-pre-lttrn 7939 ax-pre-apti 7940 ax-pre-ltadd 7941 ax-pre-mulgt0 7942 ax-pre-mulext 7943 ax-arch 7944 ax-caucvg 7945 |
This theorem depends on definitions: df-bi 117 df-dc 836 df-3or 980 df-3an 981 df-tru 1366 df-fal 1369 df-nf 1471 df-sb 1773 df-eu 2039 df-mo 2040 df-clab 2174 df-cleq 2180 df-clel 2183 df-nfc 2318 df-ne 2358 df-nel 2453 df-ral 2470 df-rex 2471 df-reu 2472 df-rmo 2473 df-rab 2474 df-v 2751 df-sbc 2975 df-csb 3070 df-dif 3143 df-un 3145 df-in 3147 df-ss 3154 df-nul 3435 df-if 3547 df-pw 3589 df-sn 3610 df-pr 3611 df-op 3613 df-uni 3822 df-int 3857 df-iun 3900 df-br 4016 df-opab 4077 df-mpt 4078 df-tr 4114 df-id 4305 df-po 4308 df-iso 4309 df-iord 4378 df-on 4380 df-ilim 4381 df-suc 4383 df-iom 4602 df-xp 4644 df-rel 4645 df-cnv 4646 df-co 4647 df-dm 4648 df-rn 4649 df-res 4650 df-ima 4651 df-iota 5190 df-fun 5230 df-fn 5231 df-f 5232 df-f1 5233 df-fo 5234 df-f1o 5235 df-fv 5236 df-isom 5237 df-riota 5844 df-ov 5891 df-oprab 5892 df-mpo 5893 df-1st 6155 df-2nd 6156 df-recs 6320 df-irdg 6385 df-frec 6406 df-1o 6431 df-oadd 6435 df-er 6549 df-en 6755 df-dom 6756 df-fin 6757 df-pnf 8008 df-mnf 8009 df-xr 8010 df-ltxr 8011 df-le 8012 df-sub 8144 df-neg 8145 df-reap 8546 df-ap 8553 df-div 8644 df-inn 8934 df-2 8992 df-3 8993 df-4 8994 df-n0 9191 df-z 9268 df-uz 9543 df-q 9634 df-rp 9668 df-fz 10023 df-fzo 10157 df-seqfrec 10460 df-exp 10534 df-ihash 10770 df-cj 10865 df-re 10866 df-im 10867 df-rsqrt 11021 df-abs 11022 df-clim 11301 df-proddc 11573 |
This theorem is referenced by: fprodsplitsn 11655 fprodsplit1f 11656 |
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