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Mirrors > Home > MPE Home > Th. List > plyf | Structured version Visualization version GIF version |
Description: The polynomial is a function on the complex numbers. (Contributed by Mario Carneiro, 22-Jul-2014.) |
Ref | Expression |
---|---|
plyf | ⊢ (𝐹 ∈ (Poly‘𝑆) → 𝐹:ℂ⟶ℂ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elply 24944 | . . 3 ⊢ (𝐹 ∈ (Poly‘𝑆) ↔ (𝑆 ⊆ ℂ ∧ ∃𝑛 ∈ ℕ0 ∃𝑎 ∈ ((𝑆 ∪ {0}) ↑m ℕ0)𝐹 = (𝑧 ∈ ℂ ↦ Σ𝑘 ∈ (0...𝑛)((𝑎‘𝑘) · (𝑧↑𝑘))))) | |
2 | 1 | simprbi 500 | . 2 ⊢ (𝐹 ∈ (Poly‘𝑆) → ∃𝑛 ∈ ℕ0 ∃𝑎 ∈ ((𝑆 ∪ {0}) ↑m ℕ0)𝐹 = (𝑧 ∈ ℂ ↦ Σ𝑘 ∈ (0...𝑛)((𝑎‘𝑘) · (𝑧↑𝑘)))) |
3 | fzfid 13432 | . . . . . 6 ⊢ (((𝐹 ∈ (Poly‘𝑆) ∧ (𝑛 ∈ ℕ0 ∧ 𝑎 ∈ ((𝑆 ∪ {0}) ↑m ℕ0))) ∧ 𝑧 ∈ ℂ) → (0...𝑛) ∈ Fin) | |
4 | plybss 24943 | . . . . . . . . . . 11 ⊢ (𝐹 ∈ (Poly‘𝑆) → 𝑆 ⊆ ℂ) | |
5 | 0cnd 10712 | . . . . . . . . . . . 12 ⊢ (𝐹 ∈ (Poly‘𝑆) → 0 ∈ ℂ) | |
6 | 5 | snssd 4697 | . . . . . . . . . . 11 ⊢ (𝐹 ∈ (Poly‘𝑆) → {0} ⊆ ℂ) |
7 | 4, 6 | unssd 4076 | . . . . . . . . . 10 ⊢ (𝐹 ∈ (Poly‘𝑆) → (𝑆 ∪ {0}) ⊆ ℂ) |
8 | 7 | ad2antrr 726 | . . . . . . . . 9 ⊢ (((𝐹 ∈ (Poly‘𝑆) ∧ (𝑛 ∈ ℕ0 ∧ 𝑎 ∈ ((𝑆 ∪ {0}) ↑m ℕ0))) ∧ 𝑧 ∈ ℂ) → (𝑆 ∪ {0}) ⊆ ℂ) |
9 | 8 | adantr 484 | . . . . . . . 8 ⊢ ((((𝐹 ∈ (Poly‘𝑆) ∧ (𝑛 ∈ ℕ0 ∧ 𝑎 ∈ ((𝑆 ∪ {0}) ↑m ℕ0))) ∧ 𝑧 ∈ ℂ) ∧ 𝑘 ∈ (0...𝑛)) → (𝑆 ∪ {0}) ⊆ ℂ) |
10 | simplrr 778 | . . . . . . . . . 10 ⊢ (((𝐹 ∈ (Poly‘𝑆) ∧ (𝑛 ∈ ℕ0 ∧ 𝑎 ∈ ((𝑆 ∪ {0}) ↑m ℕ0))) ∧ 𝑧 ∈ ℂ) → 𝑎 ∈ ((𝑆 ∪ {0}) ↑m ℕ0)) | |
11 | cnex 10696 | . . . . . . . . . . . 12 ⊢ ℂ ∈ V | |
12 | ssexg 5191 | . . . . . . . . . . . 12 ⊢ (((𝑆 ∪ {0}) ⊆ ℂ ∧ ℂ ∈ V) → (𝑆 ∪ {0}) ∈ V) | |
13 | 8, 11, 12 | sylancl 589 | . . . . . . . . . . 11 ⊢ (((𝐹 ∈ (Poly‘𝑆) ∧ (𝑛 ∈ ℕ0 ∧ 𝑎 ∈ ((𝑆 ∪ {0}) ↑m ℕ0))) ∧ 𝑧 ∈ ℂ) → (𝑆 ∪ {0}) ∈ V) |
14 | nn0ex 11982 | . . . . . . . . . . 11 ⊢ ℕ0 ∈ V | |
15 | elmapg 8450 | . . . . . . . . . . 11 ⊢ (((𝑆 ∪ {0}) ∈ V ∧ ℕ0 ∈ V) → (𝑎 ∈ ((𝑆 ∪ {0}) ↑m ℕ0) ↔ 𝑎:ℕ0⟶(𝑆 ∪ {0}))) | |
16 | 13, 14, 15 | sylancl 589 | . . . . . . . . . 10 ⊢ (((𝐹 ∈ (Poly‘𝑆) ∧ (𝑛 ∈ ℕ0 ∧ 𝑎 ∈ ((𝑆 ∪ {0}) ↑m ℕ0))) ∧ 𝑧 ∈ ℂ) → (𝑎 ∈ ((𝑆 ∪ {0}) ↑m ℕ0) ↔ 𝑎:ℕ0⟶(𝑆 ∪ {0}))) |
17 | 10, 16 | mpbid 235 | . . . . . . . . 9 ⊢ (((𝐹 ∈ (Poly‘𝑆) ∧ (𝑛 ∈ ℕ0 ∧ 𝑎 ∈ ((𝑆 ∪ {0}) ↑m ℕ0))) ∧ 𝑧 ∈ ℂ) → 𝑎:ℕ0⟶(𝑆 ∪ {0})) |
18 | elfznn0 13091 | . . . . . . . . 9 ⊢ (𝑘 ∈ (0...𝑛) → 𝑘 ∈ ℕ0) | |
19 | ffvelrn 6859 | . . . . . . . . 9 ⊢ ((𝑎:ℕ0⟶(𝑆 ∪ {0}) ∧ 𝑘 ∈ ℕ0) → (𝑎‘𝑘) ∈ (𝑆 ∪ {0})) | |
20 | 17, 18, 19 | syl2an 599 | . . . . . . . 8 ⊢ ((((𝐹 ∈ (Poly‘𝑆) ∧ (𝑛 ∈ ℕ0 ∧ 𝑎 ∈ ((𝑆 ∪ {0}) ↑m ℕ0))) ∧ 𝑧 ∈ ℂ) ∧ 𝑘 ∈ (0...𝑛)) → (𝑎‘𝑘) ∈ (𝑆 ∪ {0})) |
21 | 9, 20 | sseldd 3878 | . . . . . . 7 ⊢ ((((𝐹 ∈ (Poly‘𝑆) ∧ (𝑛 ∈ ℕ0 ∧ 𝑎 ∈ ((𝑆 ∪ {0}) ↑m ℕ0))) ∧ 𝑧 ∈ ℂ) ∧ 𝑘 ∈ (0...𝑛)) → (𝑎‘𝑘) ∈ ℂ) |
22 | simpr 488 | . . . . . . . 8 ⊢ (((𝐹 ∈ (Poly‘𝑆) ∧ (𝑛 ∈ ℕ0 ∧ 𝑎 ∈ ((𝑆 ∪ {0}) ↑m ℕ0))) ∧ 𝑧 ∈ ℂ) → 𝑧 ∈ ℂ) | |
23 | expcl 13539 | . . . . . . . 8 ⊢ ((𝑧 ∈ ℂ ∧ 𝑘 ∈ ℕ0) → (𝑧↑𝑘) ∈ ℂ) | |
24 | 22, 18, 23 | syl2an 599 | . . . . . . 7 ⊢ ((((𝐹 ∈ (Poly‘𝑆) ∧ (𝑛 ∈ ℕ0 ∧ 𝑎 ∈ ((𝑆 ∪ {0}) ↑m ℕ0))) ∧ 𝑧 ∈ ℂ) ∧ 𝑘 ∈ (0...𝑛)) → (𝑧↑𝑘) ∈ ℂ) |
25 | 21, 24 | mulcld 10739 | . . . . . 6 ⊢ ((((𝐹 ∈ (Poly‘𝑆) ∧ (𝑛 ∈ ℕ0 ∧ 𝑎 ∈ ((𝑆 ∪ {0}) ↑m ℕ0))) ∧ 𝑧 ∈ ℂ) ∧ 𝑘 ∈ (0...𝑛)) → ((𝑎‘𝑘) · (𝑧↑𝑘)) ∈ ℂ) |
26 | 3, 25 | fsumcl 15183 | . . . . 5 ⊢ (((𝐹 ∈ (Poly‘𝑆) ∧ (𝑛 ∈ ℕ0 ∧ 𝑎 ∈ ((𝑆 ∪ {0}) ↑m ℕ0))) ∧ 𝑧 ∈ ℂ) → Σ𝑘 ∈ (0...𝑛)((𝑎‘𝑘) · (𝑧↑𝑘)) ∈ ℂ) |
27 | 26 | fmpttd 6889 | . . . 4 ⊢ ((𝐹 ∈ (Poly‘𝑆) ∧ (𝑛 ∈ ℕ0 ∧ 𝑎 ∈ ((𝑆 ∪ {0}) ↑m ℕ0))) → (𝑧 ∈ ℂ ↦ Σ𝑘 ∈ (0...𝑛)((𝑎‘𝑘) · (𝑧↑𝑘))):ℂ⟶ℂ) |
28 | feq1 6485 | . . . 4 ⊢ (𝐹 = (𝑧 ∈ ℂ ↦ Σ𝑘 ∈ (0...𝑛)((𝑎‘𝑘) · (𝑧↑𝑘))) → (𝐹:ℂ⟶ℂ ↔ (𝑧 ∈ ℂ ↦ Σ𝑘 ∈ (0...𝑛)((𝑎‘𝑘) · (𝑧↑𝑘))):ℂ⟶ℂ)) | |
29 | 27, 28 | syl5ibrcom 250 | . . 3 ⊢ ((𝐹 ∈ (Poly‘𝑆) ∧ (𝑛 ∈ ℕ0 ∧ 𝑎 ∈ ((𝑆 ∪ {0}) ↑m ℕ0))) → (𝐹 = (𝑧 ∈ ℂ ↦ Σ𝑘 ∈ (0...𝑛)((𝑎‘𝑘) · (𝑧↑𝑘))) → 𝐹:ℂ⟶ℂ)) |
30 | 29 | rexlimdvva 3204 | . 2 ⊢ (𝐹 ∈ (Poly‘𝑆) → (∃𝑛 ∈ ℕ0 ∃𝑎 ∈ ((𝑆 ∪ {0}) ↑m ℕ0)𝐹 = (𝑧 ∈ ℂ ↦ Σ𝑘 ∈ (0...𝑛)((𝑎‘𝑘) · (𝑧↑𝑘))) → 𝐹:ℂ⟶ℂ)) |
31 | 2, 30 | mpd 15 | 1 ⊢ (𝐹 ∈ (Poly‘𝑆) → 𝐹:ℂ⟶ℂ) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 209 ∧ wa 399 = wceq 1542 ∈ wcel 2114 ∃wrex 3054 Vcvv 3398 ∪ cun 3841 ⊆ wss 3843 {csn 4516 ↦ cmpt 5110 ⟶wf 6335 ‘cfv 6339 (class class class)co 7170 ↑m cmap 8437 ℂcc 10613 0cc0 10615 · cmul 10620 ℕ0cn0 11976 ...cfz 12981 ↑cexp 13521 Σcsu 15135 Polycply 24933 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1975 ax-7 2020 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2162 ax-12 2179 ax-ext 2710 ax-rep 5154 ax-sep 5167 ax-nul 5174 ax-pow 5232 ax-pr 5296 ax-un 7479 ax-inf2 9177 ax-cnex 10671 ax-resscn 10672 ax-1cn 10673 ax-icn 10674 ax-addcl 10675 ax-addrcl 10676 ax-mulcl 10677 ax-mulrcl 10678 ax-mulcom 10679 ax-addass 10680 ax-mulass 10681 ax-distr 10682 ax-i2m1 10683 ax-1ne0 10684 ax-1rid 10685 ax-rnegex 10686 ax-rrecex 10687 ax-cnre 10688 ax-pre-lttri 10689 ax-pre-lttrn 10690 ax-pre-ltadd 10691 ax-pre-mulgt0 10692 ax-pre-sup 10693 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 847 df-3or 1089 df-3an 1090 df-tru 1545 df-fal 1555 df-ex 1787 df-nf 1791 df-sb 2075 df-mo 2540 df-eu 2570 df-clab 2717 df-cleq 2730 df-clel 2811 df-nfc 2881 df-ne 2935 df-nel 3039 df-ral 3058 df-rex 3059 df-reu 3060 df-rmo 3061 df-rab 3062 df-v 3400 df-sbc 3681 df-csb 3791 df-dif 3846 df-un 3848 df-in 3850 df-ss 3860 df-pss 3862 df-nul 4212 df-if 4415 df-pw 4490 df-sn 4517 df-pr 4519 df-tp 4521 df-op 4523 df-uni 4797 df-int 4837 df-iun 4883 df-br 5031 df-opab 5093 df-mpt 5111 df-tr 5137 df-id 5429 df-eprel 5434 df-po 5442 df-so 5443 df-fr 5483 df-se 5484 df-we 5485 df-xp 5531 df-rel 5532 df-cnv 5533 df-co 5534 df-dm 5535 df-rn 5536 df-res 5537 df-ima 5538 df-pred 6129 df-ord 6175 df-on 6176 df-lim 6177 df-suc 6178 df-iota 6297 df-fun 6341 df-fn 6342 df-f 6343 df-f1 6344 df-fo 6345 df-f1o 6346 df-fv 6347 df-isom 6348 df-riota 7127 df-ov 7173 df-oprab 7174 df-mpo 7175 df-om 7600 df-1st 7714 df-2nd 7715 df-wrecs 7976 df-recs 8037 df-rdg 8075 df-1o 8131 df-er 8320 df-map 8439 df-en 8556 df-dom 8557 df-sdom 8558 df-fin 8559 df-sup 8979 df-oi 9047 df-card 9441 df-pnf 10755 df-mnf 10756 df-xr 10757 df-ltxr 10758 df-le 10759 df-sub 10950 df-neg 10951 df-div 11376 df-nn 11717 df-2 11779 df-3 11780 df-n0 11977 df-z 12063 df-uz 12325 df-rp 12473 df-fz 12982 df-fzo 13125 df-seq 13461 df-exp 13522 df-hash 13783 df-cj 14548 df-re 14549 df-im 14550 df-sqrt 14684 df-abs 14685 df-clim 14935 df-sum 15136 df-ply 24937 |
This theorem is referenced by: plysub 24968 plyco 24990 0dgrb 24995 coe0 25005 coesub 25006 dgrsub 25021 dgrcolem1 25022 dgrcolem2 25023 dgrco 25024 plymul0or 25029 plyreres 25031 dvply2g 25033 dvnply2 25035 plycpn 25037 plydivlem3 25043 plydivlem4 25044 plydiveu 25046 plyremlem 25052 plyrem 25053 facth 25054 fta1lem 25055 fta1 25056 quotcan 25057 vieta1lem1 25058 vieta1lem2 25059 vieta1 25060 plyexmo 25061 elaa 25064 elqaalem3 25069 aannenlem1 25076 aalioulem2 25081 aalioulem3 25082 aalioulem4 25083 taylthlem2 25121 ftalem2 25811 ftalem3 25812 ftalem4 25813 ftalem5 25814 ftalem7 25816 basellem4 25821 basellem5 25822 plymul02 32095 plymulx0 32096 signsplypnf 32099 signsply0 32100 mpaaeu 40547 rngunsnply 40570 |
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