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Mirrors > Home > ILE Home > Th. List > prodf | GIF version |
Description: An infinite product of complex terms is a function from an upper set of integers to ℂ. (Contributed by Scott Fenton, 4-Dec-2017.) |
Ref | Expression |
---|---|
prodf.1 | ⊢ 𝑍 = (ℤ≥‘𝑀) |
prodf.2 | ⊢ (𝜑 → 𝑀 ∈ ℤ) |
prodf.3 | ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (𝐹‘𝑘) ∈ ℂ) |
Ref | Expression |
---|---|
prodf | ⊢ (𝜑 → seq𝑀( · , 𝐹):𝑍⟶ℂ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | prodf.1 | . 2 ⊢ 𝑍 = (ℤ≥‘𝑀) | |
2 | prodf.2 | . 2 ⊢ (𝜑 → 𝑀 ∈ ℤ) | |
3 | prodf.3 | . 2 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (𝐹‘𝑘) ∈ ℂ) | |
4 | mulcl 7752 | . . 3 ⊢ ((𝑘 ∈ ℂ ∧ 𝑥 ∈ ℂ) → (𝑘 · 𝑥) ∈ ℂ) | |
5 | 4 | adantl 275 | . 2 ⊢ ((𝜑 ∧ (𝑘 ∈ ℂ ∧ 𝑥 ∈ ℂ)) → (𝑘 · 𝑥) ∈ ℂ) |
6 | 1, 2, 3, 5 | seqf 10239 | 1 ⊢ (𝜑 → seq𝑀( · , 𝐹):𝑍⟶ℂ) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 103 = wceq 1331 ∈ wcel 1480 ⟶wf 5119 ‘cfv 5123 (class class class)co 5774 ℂcc 7623 · cmul 7630 ℤcz 9059 ℤ≥cuz 9331 seqcseq 10223 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 603 ax-in2 604 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-13 1491 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 ax-coll 4043 ax-sep 4046 ax-nul 4054 ax-pow 4098 ax-pr 4131 ax-un 4355 ax-setind 4452 ax-iinf 4502 ax-cnex 7716 ax-resscn 7717 ax-1cn 7718 ax-1re 7719 ax-icn 7720 ax-addcl 7721 ax-addrcl 7722 ax-mulcl 7723 ax-addcom 7725 ax-addass 7727 ax-distr 7729 ax-i2m1 7730 ax-0lt1 7731 ax-0id 7733 ax-rnegex 7734 ax-cnre 7736 ax-pre-ltirr 7737 ax-pre-ltwlin 7738 ax-pre-lttrn 7739 ax-pre-ltadd 7741 |
This theorem depends on definitions: df-bi 116 df-3or 963 df-3an 964 df-tru 1334 df-fal 1337 df-nf 1437 df-sb 1736 df-eu 2002 df-mo 2003 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ne 2309 df-nel 2404 df-ral 2421 df-rex 2422 df-reu 2423 df-rab 2425 df-v 2688 df-sbc 2910 df-csb 3004 df-dif 3073 df-un 3075 df-in 3077 df-ss 3084 df-nul 3364 df-pw 3512 df-sn 3533 df-pr 3534 df-op 3536 df-uni 3737 df-int 3772 df-iun 3815 df-br 3930 df-opab 3990 df-mpt 3991 df-tr 4027 df-id 4215 df-iord 4288 df-on 4290 df-ilim 4291 df-suc 4293 df-iom 4505 df-xp 4545 df-rel 4546 df-cnv 4547 df-co 4548 df-dm 4549 df-rn 4550 df-res 4551 df-ima 4552 df-iota 5088 df-fun 5125 df-fn 5126 df-f 5127 df-f1 5128 df-fo 5129 df-f1o 5130 df-fv 5131 df-riota 5730 df-ov 5777 df-oprab 5778 df-mpo 5779 df-1st 6038 df-2nd 6039 df-recs 6202 df-frec 6288 df-pnf 7807 df-mnf 7808 df-xr 7809 df-ltxr 7810 df-le 7811 df-sub 7940 df-neg 7941 df-inn 8726 df-n0 8983 df-z 9060 df-uz 9332 df-seqfrec 10224 |
This theorem is referenced by: clim2prod 11313 clim2divap 11314 prodf1f 11317 prodfap0 11319 prodfrecap 11320 prodfdivap 11321 ntrivcvgap 11322 fproddccvg 11346 |
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