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| Mirrors > Home > ILE Home > Th. List > fproddivapf | GIF version | ||
| Description: The quotient of two finite products. A version of fproddivap 11985 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 2349 | . . . 4 ⊢ Ⅎ𝑗(𝐵 / 𝐶) | |
| 2 | nfcsb1v 3127 | . . . . 5 ⊢ Ⅎ𝑘⦋𝑗 / 𝑘⦌𝐵 | |
| 3 | nfcv 2349 | . . . . 5 ⊢ Ⅎ𝑘 / | |
| 4 | nfcsb1v 3127 | . . . . 5 ⊢ Ⅎ𝑘⦋𝑗 / 𝑘⦌𝐶 | |
| 5 | 2, 3, 4 | nfov 5981 | . . . 4 ⊢ Ⅎ𝑘(⦋𝑗 / 𝑘⦌𝐵 / ⦋𝑗 / 𝑘⦌𝐶) |
| 6 | csbeq1a 3103 | . . . . 5 ⊢ (𝑘 = 𝑗 → 𝐵 = ⦋𝑗 / 𝑘⦌𝐵) | |
| 7 | csbeq1a 3103 | . . . . 5 ⊢ (𝑘 = 𝑗 → 𝐶 = ⦋𝑗 / 𝑘⦌𝐶) | |
| 8 | 6, 7 | oveq12d 5969 | . . . 4 ⊢ (𝑘 = 𝑗 → (𝐵 / 𝐶) = (⦋𝑗 / 𝑘⦌𝐵 / ⦋𝑗 / 𝑘⦌𝐶)) |
| 9 | 1, 5, 8 | cbvprodi 11915 | . . 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 1553 | . . . . . 6 ⊢ (𝜑 → Ⅎ𝑘 𝑗 ∈ 𝐴) | |
| 14 | 12, 13 | nfan1 1588 | . . . . 5 ⊢ Ⅎ𝑘(𝜑 ∧ 𝑗 ∈ 𝐴) |
| 15 | 2 | nfel1 2360 | . . . . 5 ⊢ Ⅎ𝑘⦋𝑗 / 𝑘⦌𝐵 ∈ ℂ |
| 16 | 14, 15 | nfim 1596 | . . . 4 ⊢ Ⅎ𝑘((𝜑 ∧ 𝑗 ∈ 𝐴) → ⦋𝑗 / 𝑘⦌𝐵 ∈ ℂ) |
| 17 | eleq1w 2267 | . . . . . 6 ⊢ (𝑘 = 𝑗 → (𝑘 ∈ 𝐴 ↔ 𝑗 ∈ 𝐴)) | |
| 18 | 17 | anbi2d 464 | . . . . 5 ⊢ (𝑘 = 𝑗 → ((𝜑 ∧ 𝑘 ∈ 𝐴) ↔ (𝜑 ∧ 𝑗 ∈ 𝐴))) |
| 19 | 6 | eleq1d 2275 | . . . . 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 1724 | . . 3 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐴) → ⦋𝑗 / 𝑘⦌𝐵 ∈ ℂ) |
| 23 | 4 | nfel1 2360 | . . . . 5 ⊢ Ⅎ𝑘⦋𝑗 / 𝑘⦌𝐶 ∈ ℂ |
| 24 | 14, 23 | nfim 1596 | . . . 4 ⊢ Ⅎ𝑘((𝜑 ∧ 𝑗 ∈ 𝐴) → ⦋𝑗 / 𝑘⦌𝐶 ∈ ℂ) |
| 25 | 7 | eleq1d 2275 | . . . . 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 1724 | . . 3 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐴) → ⦋𝑗 / 𝑘⦌𝐶 ∈ ℂ) |
| 29 | nfcv 2349 | . . . . . 6 ⊢ Ⅎ𝑘 # | |
| 30 | nfcv 2349 | . . . . . 6 ⊢ Ⅎ𝑘0 | |
| 31 | 4, 29, 30 | nfbr 4094 | . . . . 5 ⊢ Ⅎ𝑘⦋𝑗 / 𝑘⦌𝐶 # 0 |
| 32 | 14, 31 | nfim 1596 | . . . 4 ⊢ Ⅎ𝑘((𝜑 ∧ 𝑗 ∈ 𝐴) → ⦋𝑗 / 𝑘⦌𝐶 # 0) |
| 33 | 7 | breq1d 4057 | . . . . 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 1724 | . . 3 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐴) → ⦋𝑗 / 𝑘⦌𝐶 # 0) |
| 37 | 11, 22, 28, 36 | fproddivap 11985 | . 2 ⊢ (𝜑 → ∏𝑗 ∈ 𝐴 (⦋𝑗 / 𝑘⦌𝐵 / ⦋𝑗 / 𝑘⦌𝐶) = (∏𝑗 ∈ 𝐴 ⦋𝑗 / 𝑘⦌𝐵 / ∏𝑗 ∈ 𝐴 ⦋𝑗 / 𝑘⦌𝐶)) |
| 38 | nfcv 2349 | . . . . . 6 ⊢ Ⅎ𝑗𝐵 | |
| 39 | 38, 2, 6 | cbvprodi 11915 | . . . . 5 ⊢ ∏𝑘 ∈ 𝐴 𝐵 = ∏𝑗 ∈ 𝐴 ⦋𝑗 / 𝑘⦌𝐵 |
| 40 | 39 | eqcomi 2210 | . . . 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 2349 | . . . . 5 ⊢ Ⅎ𝑗𝐶 | |
| 43 | 7 | equcoms 1732 | . . . . . 6 ⊢ (𝑗 = 𝑘 → 𝐶 = ⦋𝑗 / 𝑘⦌𝐶) |
| 44 | 43 | eqcomd 2212 | . . . . 5 ⊢ (𝑗 = 𝑘 → ⦋𝑗 / 𝑘⦌𝐶 = 𝐶) |
| 45 | 4, 42, 44 | cbvprodi 11915 | . . . 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 5969 | . 2 ⊢ (𝜑 → (∏𝑗 ∈ 𝐴 ⦋𝑗 / 𝑘⦌𝐵 / ∏𝑗 ∈ 𝐴 ⦋𝑗 / 𝑘⦌𝐶) = (∏𝑘 ∈ 𝐴 𝐵 / ∏𝑘 ∈ 𝐴 𝐶)) |
| 48 | 10, 37, 47 | 3eqtrd 2243 | 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 1373 Ⅎwnf 1484 ∈ wcel 2177 ⦋csb 3094 class class class wbr 4047 (class class class)co 5951 Fincfn 6834 ℂcc 7930 0cc0 7932 # cap 8661 / cdiv 8752 ∏cprod 11905 |
| 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 711 ax-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-10 1529 ax-11 1530 ax-i12 1531 ax-bndl 1533 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-i5r 1559 ax-13 2179 ax-14 2180 ax-ext 2188 ax-coll 4163 ax-sep 4166 ax-nul 4174 ax-pow 4222 ax-pr 4257 ax-un 4484 ax-setind 4589 ax-iinf 4640 ax-cnex 8023 ax-resscn 8024 ax-1cn 8025 ax-1re 8026 ax-icn 8027 ax-addcl 8028 ax-addrcl 8029 ax-mulcl 8030 ax-mulrcl 8031 ax-addcom 8032 ax-mulcom 8033 ax-addass 8034 ax-mulass 8035 ax-distr 8036 ax-i2m1 8037 ax-0lt1 8038 ax-1rid 8039 ax-0id 8040 ax-rnegex 8041 ax-precex 8042 ax-cnre 8043 ax-pre-ltirr 8044 ax-pre-ltwlin 8045 ax-pre-lttrn 8046 ax-pre-apti 8047 ax-pre-ltadd 8048 ax-pre-mulgt0 8049 ax-pre-mulext 8050 ax-arch 8051 ax-caucvg 8052 |
| This theorem depends on definitions: df-bi 117 df-dc 837 df-3or 982 df-3an 983 df-tru 1376 df-fal 1379 df-nf 1485 df-sb 1787 df-eu 2058 df-mo 2059 df-clab 2193 df-cleq 2199 df-clel 2202 df-nfc 2338 df-ne 2378 df-nel 2473 df-ral 2490 df-rex 2491 df-reu 2492 df-rmo 2493 df-rab 2494 df-v 2775 df-sbc 3000 df-csb 3095 df-dif 3169 df-un 3171 df-in 3173 df-ss 3180 df-nul 3462 df-if 3573 df-pw 3619 df-sn 3640 df-pr 3641 df-op 3643 df-uni 3853 df-int 3888 df-iun 3931 df-br 4048 df-opab 4110 df-mpt 4111 df-tr 4147 df-id 4344 df-po 4347 df-iso 4348 df-iord 4417 df-on 4419 df-ilim 4420 df-suc 4422 df-iom 4643 df-xp 4685 df-rel 4686 df-cnv 4687 df-co 4688 df-dm 4689 df-rn 4690 df-res 4691 df-ima 4692 df-iota 5237 df-fun 5278 df-fn 5279 df-f 5280 df-f1 5281 df-fo 5282 df-f1o 5283 df-fv 5284 df-isom 5285 df-riota 5906 df-ov 5954 df-oprab 5955 df-mpo 5956 df-1st 6233 df-2nd 6234 df-recs 6398 df-irdg 6463 df-frec 6484 df-1o 6509 df-oadd 6513 df-er 6627 df-en 6835 df-dom 6836 df-fin 6837 df-pnf 8116 df-mnf 8117 df-xr 8118 df-ltxr 8119 df-le 8120 df-sub 8252 df-neg 8253 df-reap 8655 df-ap 8662 df-div 8753 df-inn 9044 df-2 9102 df-3 9103 df-4 9104 df-n0 9303 df-z 9380 df-uz 9656 df-q 9748 df-rp 9783 df-fz 10138 df-fzo 10272 df-seqfrec 10600 df-exp 10691 df-ihash 10928 df-cj 11197 df-re 11198 df-im 11199 df-rsqrt 11353 df-abs 11354 df-clim 11634 df-proddc 11906 |
| This theorem is referenced by: (None) |
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