abelthlem4 - Metamath Proof Explorer

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Theorem abelthlem4 26370

Description: Lemma for abelth 26377. (Contributed by Mario Carneiro, 31-Mar-2015.)

**Hypotheses**
Ref	Expression
abelth.1	⊢ (𝜑 → 𝐴:ℕ₀⟶ℂ)
abelth.2	⊢ (𝜑 → seq0( + , 𝐴) ∈ dom ⇝ )
abelth.3	⊢ (𝜑 → 𝑀 ∈ ℝ)
abelth.4	⊢ (𝜑 → 0 ≤ 𝑀)
abelth.5	⊢ 𝑆 = {𝑧 ∈ ℂ ∣ (abs‘(1 − 𝑧)) ≤ (𝑀 · (1 − (abs‘𝑧)))}
abelth.6	⊢ 𝐹 = (𝑥 ∈ 𝑆 ↦ Σ𝑛 ∈ ℕ₀ ((𝐴‘𝑛) · (𝑥↑𝑛)))

**Assertion**
Ref	Expression
abelthlem4	⊢ (𝜑 → 𝐹:𝑆⟶ℂ)

Distinct variable groups: 𝑥,𝑛,𝑧,𝑀 𝐴,𝑛,𝑥,𝑧 𝜑,𝑛,𝑥 𝑆,𝑛,𝑥 Allowed substitution hints: 𝜑(𝑧) 𝑆(𝑧) 𝐹(𝑥,𝑧,𝑛)

Proof of Theorem abelthlem4 Dummy variable 𝑚 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		nn0uz 12894	. . 3 ⊢ ℕ₀ = (ℤ_≥‘0)
2		0zd 12600	. . 3 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑆) → 0 ∈ ℤ)
3		fveq2 6897	. . . . . 6 ⊢ (𝑚 = 𝑛 → (𝐴‘𝑚) = (𝐴‘𝑛))
4		oveq2 7428	. . . . . 6 ⊢ (𝑚 = 𝑛 → (𝑥↑𝑚) = (𝑥↑𝑛))
5	3, 4	oveq12d 7438	. . . . 5 ⊢ (𝑚 = 𝑛 → ((𝐴‘𝑚) · (𝑥↑𝑚)) = ((𝐴‘𝑛) · (𝑥↑𝑛)))
6		eqid 2728	. . . . 5 ⊢ (𝑚 ∈ ℕ₀ ↦ ((𝐴‘𝑚) · (𝑥↑𝑚))) = (𝑚 ∈ ℕ₀ ↦ ((𝐴‘𝑚) · (𝑥↑𝑚)))
7		ovex 7453	. . . . 5 ⊢ ((𝐴‘𝑛) · (𝑥↑𝑛)) ∈ V
8	5, 6, 7	fvmpt 7005	. . . 4 ⊢ (𝑛 ∈ ℕ₀ → ((𝑚 ∈ ℕ₀ ↦ ((𝐴‘𝑚) · (𝑥↑𝑚)))‘𝑛) = ((𝐴‘𝑛) · (𝑥↑𝑛)))
9	8	adantl 481	. . 3 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑆) ∧ 𝑛 ∈ ℕ₀) → ((𝑚 ∈ ℕ₀ ↦ ((𝐴‘𝑚) · (𝑥↑𝑚)))‘𝑛) = ((𝐴‘𝑛) · (𝑥↑𝑛)))
10		abelth.1	. . . . . 6 ⊢ (𝜑 → 𝐴:ℕ₀⟶ℂ)
11	10	adantr 480	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑆) → 𝐴:ℕ₀⟶ℂ)
12	11	ffvelcdmda 7094	. . . 4 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑆) ∧ 𝑛 ∈ ℕ₀) → (𝐴‘𝑛) ∈ ℂ)
13		abelth.5	. . . . . . . 8 ⊢ 𝑆 = {𝑧 ∈ ℂ ∣ (abs‘(1 − 𝑧)) ≤ (𝑀 · (1 − (abs‘𝑧)))}
14	13	ssrab3 4078	. . . . . . 7 ⊢ 𝑆 ⊆ ℂ
15	14	a1i 11	. . . . . 6 ⊢ (𝜑 → 𝑆 ⊆ ℂ)
16	15	sselda 3980	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑆) → 𝑥 ∈ ℂ)
17		expcl 14076	. . . . 5 ⊢ ((𝑥 ∈ ℂ ∧ 𝑛 ∈ ℕ₀) → (𝑥↑𝑛) ∈ ℂ)
18	16, 17	sylan 579	. . . 4 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑆) ∧ 𝑛 ∈ ℕ₀) → (𝑥↑𝑛) ∈ ℂ)
19	12, 18	mulcld 11264	. . 3 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑆) ∧ 𝑛 ∈ ℕ₀) → ((𝐴‘𝑛) · (𝑥↑𝑛)) ∈ ℂ)
20		abelth.2	. . . 4 ⊢ (𝜑 → seq0( + , 𝐴) ∈ dom ⇝ )
21		abelth.3	. . . 4 ⊢ (𝜑 → 𝑀 ∈ ℝ)
22		abelth.4	. . . 4 ⊢ (𝜑 → 0 ≤ 𝑀)
23	10, 20, 21, 22, 13	abelthlem3 26369	. . 3 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑆) → seq0( + , (𝑚 ∈ ℕ₀ ↦ ((𝐴‘𝑚) · (𝑥↑𝑚)))) ∈ dom ⇝ )
24	1, 2, 9, 19, 23	isumcl 15739	. 2 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑆) → Σ𝑛 ∈ ℕ₀ ((𝐴‘𝑛) · (𝑥↑𝑛)) ∈ ℂ)
25		abelth.6	. 2 ⊢ 𝐹 = (𝑥 ∈ 𝑆 ↦ Σ𝑛 ∈ ℕ₀ ((𝐴‘𝑛) · (𝑥↑𝑛)))
26	24, 25	fmptd 7124	1 ⊢ (𝜑 → 𝐹:𝑆⟶ℂ)

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 395 = wceq 1534 ∈ wcel 2099 {crab 3429 ⊆ wss 3947 class class class wbr 5148 ↦ cmpt 5231 dom cdm 5678 ⟶wf 6544 ‘cfv 6548 (class class class)co 7420 ℂcc 11136 ℝcr 11137 0cc0 11138 1c1 11139 + caddc 11141 · cmul 11143 ≤ cle 11279 − cmin 11474 ℕ₀cn0 12502 seqcseq 13998 ↑cexp 14058 abscabs 15213 ⇝ cli 15460 Σcsu 15664

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1790 ax-4 1804 ax-5 1906 ax-6 1964 ax-7 2004 ax-8 2101 ax-9 2109 ax-10 2130 ax-11 2147 ax-12 2167 ax-ext 2699 ax-rep 5285 ax-sep 5299 ax-nul 5306 ax-pow 5365 ax-pr 5429 ax-un 7740 ax-inf2 9664 ax-cnex 11194 ax-resscn 11195 ax-1cn 11196 ax-icn 11197 ax-addcl 11198 ax-addrcl 11199 ax-mulcl 11200 ax-mulrcl 11201 ax-mulcom 11202 ax-addass 11203 ax-mulass 11204 ax-distr 11205 ax-i2m1 11206 ax-1ne0 11207 ax-1rid 11208 ax-rnegex 11209 ax-rrecex 11210 ax-cnre 11211 ax-pre-lttri 11212 ax-pre-lttrn 11213 ax-pre-ltadd 11214 ax-pre-mulgt0 11215 ax-pre-sup 11216

This theorem depends on definitions: df-bi 206 df-an 396 df-or 847 df-3or 1086 df-3an 1087 df-tru 1537 df-fal 1547 df-ex 1775 df-nf 1779 df-sb 2061 df-mo 2530 df-eu 2559 df-clab 2706 df-cleq 2720 df-clel 2806 df-nfc 2881 df-ne 2938 df-nel 3044 df-ral 3059 df-rex 3068 df-rmo 3373 df-reu 3374 df-rab 3430 df-v 3473 df-sbc 3777 df-csb 3893 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-pss 3966 df-nul 4324 df-if 4530 df-pw 4605 df-sn 4630 df-pr 4632 df-op 4636 df-uni 4909 df-int 4950 df-iun 4998 df-br 5149 df-opab 5211 df-mpt 5232 df-tr 5266 df-id 5576 df-eprel 5582 df-po 5590 df-so 5591 df-fr 5633 df-se 5634 df-we 5635 df-xp 5684 df-rel 5685 df-cnv 5686 df-co 5687 df-dm 5688 df-rn 5689 df-res 5690 df-ima 5691 df-pred 6305 df-ord 6372 df-on 6373 df-lim 6374 df-suc 6375 df-iota 6500 df-fun 6550 df-fn 6551 df-f 6552 df-f1 6553 df-fo 6554 df-f1o 6555 df-fv 6556 df-isom 6557 df-riota 7376 df-ov 7423 df-oprab 7424 df-mpo 7425 df-om 7871 df-1st 7993 df-2nd 7994 df-frecs 8286 df-wrecs 8317 df-recs 8391 df-rdg 8430 df-1o 8486 df-er 8724 df-map 8846 df-pm 8847 df-en 8964 df-dom 8965 df-sdom 8966 df-fin 8967 df-sup 9465 df-inf 9466 df-oi 9533 df-card 9962 df-pnf 11280 df-mnf 11281 df-xr 11282 df-ltxr 11283 df-le 11284 df-sub 11476 df-neg 11477 df-div 11902 df-nn 12243 df-2 12305 df-3 12306 df-n0 12503 df-z 12589 df-uz 12853 df-rp 13007 df-xadd 13125 df-ico 13362 df-icc 13363 df-fz 13517 df-fzo 13660 df-fl 13789 df-seq 13999 df-exp 14059 df-hash 14322 df-cj 15078 df-re 15079 df-im 15080 df-sqrt 15214 df-abs 15215 df-limsup 15447 df-clim 15464 df-rlim 15465 df-sum 15665 df-psmet 21270 df-xmet 21271 df-met 21272 df-bl 21273

This theorem is referenced by: abelthlem7 26374 abelthlem8 26375 abelthlem9 26376 abelth 26377

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