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| Mirrors > Home > ILE Home > Th. List > fproddivapf | GIF version | ||
| Description: The quotient of two finite products. A version of fproddivap 12184 using bound-variable hypotheses instead of distinct variable conditions. (Contributed by Glauco Siliprandi, 5-Apr-2020.) |
| Ref | Expression |
|---|---|
| fproddivf.kph | ⊢ Ⅎ𝑘𝜑 |
| fproddivf.a | ⊢ (𝜑 → 𝐴 ∈ Fin) |
| fproddivf.b | ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐵 ∈ ℂ) |
| fproddivf.c | ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐶 ∈ ℂ) |
| fproddivf.ap0 | ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐶 # 0) |
| Ref | Expression |
|---|---|
| fproddivapf | ⊢ (𝜑 → ∏𝑘 ∈ 𝐴 (𝐵 / 𝐶) = (∏𝑘 ∈ 𝐴 𝐵 / ∏𝑘 ∈ 𝐴 𝐶)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nfcv 2372 | . . . 4 ⊢ Ⅎ𝑗(𝐵 / 𝐶) | |
| 2 | nfcsb1v 3158 | . . . . 5 ⊢ Ⅎ𝑘⦋𝑗 / 𝑘⦌𝐵 | |
| 3 | nfcv 2372 | . . . . 5 ⊢ Ⅎ𝑘 / | |
| 4 | nfcsb1v 3158 | . . . . 5 ⊢ Ⅎ𝑘⦋𝑗 / 𝑘⦌𝐶 | |
| 5 | 2, 3, 4 | nfov 6043 | . . . 4 ⊢ Ⅎ𝑘(⦋𝑗 / 𝑘⦌𝐵 / ⦋𝑗 / 𝑘⦌𝐶) |
| 6 | csbeq1a 3134 | . . . . 5 ⊢ (𝑘 = 𝑗 → 𝐵 = ⦋𝑗 / 𝑘⦌𝐵) | |
| 7 | csbeq1a 3134 | . . . . 5 ⊢ (𝑘 = 𝑗 → 𝐶 = ⦋𝑗 / 𝑘⦌𝐶) | |
| 8 | 6, 7 | oveq12d 6031 | . . . 4 ⊢ (𝑘 = 𝑗 → (𝐵 / 𝐶) = (⦋𝑗 / 𝑘⦌𝐵 / ⦋𝑗 / 𝑘⦌𝐶)) |
| 9 | 1, 5, 8 | cbvprodi 12114 | . . 3 ⊢ ∏𝑘 ∈ 𝐴 (𝐵 / 𝐶) = ∏𝑗 ∈ 𝐴 (⦋𝑗 / 𝑘⦌𝐵 / ⦋𝑗 / 𝑘⦌𝐶) |
| 10 | 9 | a1i 9 | . 2 ⊢ (𝜑 → ∏𝑘 ∈ 𝐴 (𝐵 / 𝐶) = ∏𝑗 ∈ 𝐴 (⦋𝑗 / 𝑘⦌𝐵 / ⦋𝑗 / 𝑘⦌𝐶)) |
| 11 | fproddivf.a | . . 3 ⊢ (𝜑 → 𝐴 ∈ Fin) | |
| 12 | fproddivf.kph | . . . . . 6 ⊢ Ⅎ𝑘𝜑 | |
| 13 | nfvd 1575 | . . . . . 6 ⊢ (𝜑 → Ⅎ𝑘 𝑗 ∈ 𝐴) | |
| 14 | 12, 13 | nfan1 1610 | . . . . 5 ⊢ Ⅎ𝑘(𝜑 ∧ 𝑗 ∈ 𝐴) |
| 15 | 2 | nfel1 2383 | . . . . 5 ⊢ Ⅎ𝑘⦋𝑗 / 𝑘⦌𝐵 ∈ ℂ |
| 16 | 14, 15 | nfim 1618 | . . . 4 ⊢ Ⅎ𝑘((𝜑 ∧ 𝑗 ∈ 𝐴) → ⦋𝑗 / 𝑘⦌𝐵 ∈ ℂ) |
| 17 | eleq1w 2290 | . . . . . 6 ⊢ (𝑘 = 𝑗 → (𝑘 ∈ 𝐴 ↔ 𝑗 ∈ 𝐴)) | |
| 18 | 17 | anbi2d 464 | . . . . 5 ⊢ (𝑘 = 𝑗 → ((𝜑 ∧ 𝑘 ∈ 𝐴) ↔ (𝜑 ∧ 𝑗 ∈ 𝐴))) |
| 19 | 6 | eleq1d 2298 | . . . . 5 ⊢ (𝑘 = 𝑗 → (𝐵 ∈ ℂ ↔ ⦋𝑗 / 𝑘⦌𝐵 ∈ ℂ)) |
| 20 | 18, 19 | imbi12d 234 | . . . 4 ⊢ (𝑘 = 𝑗 → (((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐵 ∈ ℂ) ↔ ((𝜑 ∧ 𝑗 ∈ 𝐴) → ⦋𝑗 / 𝑘⦌𝐵 ∈ ℂ))) |
| 21 | fproddivf.b | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐵 ∈ ℂ) | |
| 22 | 16, 20, 21 | chvarfv 1746 | . . 3 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐴) → ⦋𝑗 / 𝑘⦌𝐵 ∈ ℂ) |
| 23 | 4 | nfel1 2383 | . . . . 5 ⊢ Ⅎ𝑘⦋𝑗 / 𝑘⦌𝐶 ∈ ℂ |
| 24 | 14, 23 | nfim 1618 | . . . 4 ⊢ Ⅎ𝑘((𝜑 ∧ 𝑗 ∈ 𝐴) → ⦋𝑗 / 𝑘⦌𝐶 ∈ ℂ) |
| 25 | 7 | eleq1d 2298 | . . . . 5 ⊢ (𝑘 = 𝑗 → (𝐶 ∈ ℂ ↔ ⦋𝑗 / 𝑘⦌𝐶 ∈ ℂ)) |
| 26 | 18, 25 | imbi12d 234 | . . . 4 ⊢ (𝑘 = 𝑗 → (((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐶 ∈ ℂ) ↔ ((𝜑 ∧ 𝑗 ∈ 𝐴) → ⦋𝑗 / 𝑘⦌𝐶 ∈ ℂ))) |
| 27 | fproddivf.c | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐶 ∈ ℂ) | |
| 28 | 24, 26, 27 | chvarfv 1746 | . . 3 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐴) → ⦋𝑗 / 𝑘⦌𝐶 ∈ ℂ) |
| 29 | nfcv 2372 | . . . . . 6 ⊢ Ⅎ𝑘 # | |
| 30 | nfcv 2372 | . . . . . 6 ⊢ Ⅎ𝑘0 | |
| 31 | 4, 29, 30 | nfbr 4133 | . . . . 5 ⊢ Ⅎ𝑘⦋𝑗 / 𝑘⦌𝐶 # 0 |
| 32 | 14, 31 | nfim 1618 | . . . 4 ⊢ Ⅎ𝑘((𝜑 ∧ 𝑗 ∈ 𝐴) → ⦋𝑗 / 𝑘⦌𝐶 # 0) |
| 33 | 7 | breq1d 4096 | . . . . 5 ⊢ (𝑘 = 𝑗 → (𝐶 # 0 ↔ ⦋𝑗 / 𝑘⦌𝐶 # 0)) |
| 34 | 18, 33 | imbi12d 234 | . . . 4 ⊢ (𝑘 = 𝑗 → (((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐶 # 0) ↔ ((𝜑 ∧ 𝑗 ∈ 𝐴) → ⦋𝑗 / 𝑘⦌𝐶 # 0))) |
| 35 | fproddivf.ap0 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐶 # 0) | |
| 36 | 32, 34, 35 | chvarfv 1746 | . . 3 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐴) → ⦋𝑗 / 𝑘⦌𝐶 # 0) |
| 37 | 11, 22, 28, 36 | fproddivap 12184 | . 2 ⊢ (𝜑 → ∏𝑗 ∈ 𝐴 (⦋𝑗 / 𝑘⦌𝐵 / ⦋𝑗 / 𝑘⦌𝐶) = (∏𝑗 ∈ 𝐴 ⦋𝑗 / 𝑘⦌𝐵 / ∏𝑗 ∈ 𝐴 ⦋𝑗 / 𝑘⦌𝐶)) |
| 38 | nfcv 2372 | . . . . . 6 ⊢ Ⅎ𝑗𝐵 | |
| 39 | 38, 2, 6 | cbvprodi 12114 | . . . . 5 ⊢ ∏𝑘 ∈ 𝐴 𝐵 = ∏𝑗 ∈ 𝐴 ⦋𝑗 / 𝑘⦌𝐵 |
| 40 | 39 | eqcomi 2233 | . . . 4 ⊢ ∏𝑗 ∈ 𝐴 ⦋𝑗 / 𝑘⦌𝐵 = ∏𝑘 ∈ 𝐴 𝐵 |
| 41 | 40 | a1i 9 | . . 3 ⊢ (𝜑 → ∏𝑗 ∈ 𝐴 ⦋𝑗 / 𝑘⦌𝐵 = ∏𝑘 ∈ 𝐴 𝐵) |
| 42 | nfcv 2372 | . . . . 5 ⊢ Ⅎ𝑗𝐶 | |
| 43 | 7 | equcoms 1754 | . . . . . 6 ⊢ (𝑗 = 𝑘 → 𝐶 = ⦋𝑗 / 𝑘⦌𝐶) |
| 44 | 43 | eqcomd 2235 | . . . . 5 ⊢ (𝑗 = 𝑘 → ⦋𝑗 / 𝑘⦌𝐶 = 𝐶) |
| 45 | 4, 42, 44 | cbvprodi 12114 | . . . 4 ⊢ ∏𝑗 ∈ 𝐴 ⦋𝑗 / 𝑘⦌𝐶 = ∏𝑘 ∈ 𝐴 𝐶 |
| 46 | 45 | a1i 9 | . . 3 ⊢ (𝜑 → ∏𝑗 ∈ 𝐴 ⦋𝑗 / 𝑘⦌𝐶 = ∏𝑘 ∈ 𝐴 𝐶) |
| 47 | 41, 46 | oveq12d 6031 | . 2 ⊢ (𝜑 → (∏𝑗 ∈ 𝐴 ⦋𝑗 / 𝑘⦌𝐵 / ∏𝑗 ∈ 𝐴 ⦋𝑗 / 𝑘⦌𝐶) = (∏𝑘 ∈ 𝐴 𝐵 / ∏𝑘 ∈ 𝐴 𝐶)) |
| 48 | 10, 37, 47 | 3eqtrd 2266 | 1 ⊢ (𝜑 → ∏𝑘 ∈ 𝐴 (𝐵 / 𝐶) = (∏𝑘 ∈ 𝐴 𝐵 / ∏𝑘 ∈ 𝐴 𝐶)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 = wceq 1395 Ⅎwnf 1506 ∈ wcel 2200 ⦋csb 3125 class class class wbr 4086 (class class class)co 6013 Fincfn 6904 ℂcc 8023 0cc0 8025 # cap 8754 / cdiv 8845 ∏cprod 12104 |
| 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 617 ax-in2 618 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-13 2202 ax-14 2203 ax-ext 2211 ax-coll 4202 ax-sep 4205 ax-nul 4213 ax-pow 4262 ax-pr 4297 ax-un 4528 ax-setind 4633 ax-iinf 4684 ax-cnex 8116 ax-resscn 8117 ax-1cn 8118 ax-1re 8119 ax-icn 8120 ax-addcl 8121 ax-addrcl 8122 ax-mulcl 8123 ax-mulrcl 8124 ax-addcom 8125 ax-mulcom 8126 ax-addass 8127 ax-mulass 8128 ax-distr 8129 ax-i2m1 8130 ax-0lt1 8131 ax-1rid 8132 ax-0id 8133 ax-rnegex 8134 ax-precex 8135 ax-cnre 8136 ax-pre-ltirr 8137 ax-pre-ltwlin 8138 ax-pre-lttrn 8139 ax-pre-apti 8140 ax-pre-ltadd 8141 ax-pre-mulgt0 8142 ax-pre-mulext 8143 ax-arch 8144 ax-caucvg 8145 |
| This theorem depends on definitions: df-bi 117 df-dc 840 df-3or 1003 df-3an 1004 df-tru 1398 df-fal 1401 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ne 2401 df-nel 2496 df-ral 2513 df-rex 2514 df-reu 2515 df-rmo 2516 df-rab 2517 df-v 2802 df-sbc 3030 df-csb 3126 df-dif 3200 df-un 3202 df-in 3204 df-ss 3211 df-nul 3493 df-if 3604 df-pw 3652 df-sn 3673 df-pr 3674 df-op 3676 df-uni 3892 df-int 3927 df-iun 3970 df-br 4087 df-opab 4149 df-mpt 4150 df-tr 4186 df-id 4388 df-po 4391 df-iso 4392 df-iord 4461 df-on 4463 df-ilim 4464 df-suc 4466 df-iom 4687 df-xp 4729 df-rel 4730 df-cnv 4731 df-co 4732 df-dm 4733 df-rn 4734 df-res 4735 df-ima 4736 df-iota 5284 df-fun 5326 df-fn 5327 df-f 5328 df-f1 5329 df-fo 5330 df-f1o 5331 df-fv 5332 df-isom 5333 df-riota 5966 df-ov 6016 df-oprab 6017 df-mpo 6018 df-1st 6298 df-2nd 6299 df-recs 6466 df-irdg 6531 df-frec 6552 df-1o 6577 df-oadd 6581 df-er 6697 df-en 6905 df-dom 6906 df-fin 6907 df-pnf 8209 df-mnf 8210 df-xr 8211 df-ltxr 8212 df-le 8213 df-sub 8345 df-neg 8346 df-reap 8748 df-ap 8755 df-div 8846 df-inn 9137 df-2 9195 df-3 9196 df-4 9197 df-n0 9396 df-z 9473 df-uz 9749 df-q 9847 df-rp 9882 df-fz 10237 df-fzo 10371 df-seqfrec 10703 df-exp 10794 df-ihash 11031 df-cj 11396 df-re 11397 df-im 11398 df-rsqrt 11552 df-abs 11553 df-clim 11833 df-proddc 12105 |
| This theorem is referenced by: (None) |
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