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Theorem ntrivcvgmullem 15843

Description: Lemma for ntrivcvgmul 15844. (Contributed by Scott Fenton, 19-Dec-2017.)

**Hypotheses**
Ref	Expression
ntrivcvgmullem.1	⊢ 𝑍 = (ℤ_≥‘𝑀)
ntrivcvgmullem.2	⊢ (𝜑 → 𝑁 ∈ 𝑍)
ntrivcvgmullem.3	⊢ (𝜑 → 𝑃 ∈ 𝑍)
ntrivcvgmullem.4	⊢ (𝜑 → 𝑋 ≠ 0)
ntrivcvgmullem.5	⊢ (𝜑 → 𝑌 ≠ 0)
ntrivcvgmullem.6	⊢ (𝜑 → seq𝑁( · , 𝐹) ⇝ 𝑋)
ntrivcvgmullem.7	⊢ (𝜑 → seq𝑃( · , 𝐺) ⇝ 𝑌)
ntrivcvgmullem.8	⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (𝐹‘𝑘) ∈ ℂ)
ntrivcvgmullem.9	⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (𝐺‘𝑘) ∈ ℂ)
ntrivcvgmullem.a	⊢ (𝜑 → 𝑁 ≤ 𝑃)
ntrivcvgmullem.b	⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (𝐻‘𝑘) = ((𝐹‘𝑘) · (𝐺‘𝑘)))

**Assertion**
Ref	Expression
ntrivcvgmullem	⊢ (𝜑 → ∃𝑞 ∈ 𝑍 ∃𝑤(𝑤 ≠ 0 ∧ seq𝑞( · , 𝐻) ⇝ 𝑤))

Distinct variable groups: 𝑤,𝐹 𝐻,𝑞,𝑤 𝑃,𝑞,𝑤 𝑤,𝑌 𝑍,𝑞 𝑘,𝐹 𝑘,𝐺 𝑘,𝐻 𝜑,𝑘 𝑃,𝑘 𝑘,𝑍 𝑘,𝑁 Allowed substitution hints: 𝜑(𝑤,𝑞) 𝐹(𝑞) 𝐺(𝑤,𝑞) 𝑀(𝑤,𝑘,𝑞) 𝑁(𝑤,𝑞) 𝑋(𝑤,𝑘,𝑞) 𝑌(𝑘,𝑞) 𝑍(𝑤)

Proof of Theorem ntrivcvgmullem Dummy variable 𝑗 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		ntrivcvgmullem.3	. 2 ⊢ (𝜑 → 𝑃 ∈ 𝑍)
2		eqid 2732	. . . . . . 7 ⊢ (ℤ_≥‘𝑁) = (ℤ_≥‘𝑁)
3		ntrivcvgmullem.a	. . . . . . . 8 ⊢ (𝜑 → 𝑁 ≤ 𝑃)
4		ntrivcvgmullem.1	. . . . . . . . . . 11 ⊢ 𝑍 = (ℤ_≥‘𝑀)
5		uzssz 12839	. . . . . . . . . . 11 ⊢ (ℤ_≥‘𝑀) ⊆ ℤ
6	4, 5	eqsstri 4015	. . . . . . . . . 10 ⊢ 𝑍 ⊆ ℤ
7		ntrivcvgmullem.2	. . . . . . . . . 10 ⊢ (𝜑 → 𝑁 ∈ 𝑍)
8	6, 7	sselid 3979	. . . . . . . . 9 ⊢ (𝜑 → 𝑁 ∈ ℤ)
9	6, 1	sselid 3979	. . . . . . . . 9 ⊢ (𝜑 → 𝑃 ∈ ℤ)
10		eluz 12832	. . . . . . . . 9 ⊢ ((𝑁 ∈ ℤ ∧ 𝑃 ∈ ℤ) → (𝑃 ∈ (ℤ_≥‘𝑁) ↔ 𝑁 ≤ 𝑃))
11	8, 9, 10	syl2anc 584	. . . . . . . 8 ⊢ (𝜑 → (𝑃 ∈ (ℤ_≥‘𝑁) ↔ 𝑁 ≤ 𝑃))
12	3, 11	mpbird 256	. . . . . . 7 ⊢ (𝜑 → 𝑃 ∈ (ℤ_≥‘𝑁))
13		ntrivcvgmullem.6	. . . . . . 7 ⊢ (𝜑 → seq𝑁( · , 𝐹) ⇝ 𝑋)
14		ntrivcvgmullem.4	. . . . . . 7 ⊢ (𝜑 → 𝑋 ≠ 0)
15	4	uztrn2 12837	. . . . . . . . 9 ⊢ ((𝑁 ∈ 𝑍 ∧ 𝑘 ∈ (ℤ_≥‘𝑁)) → 𝑘 ∈ 𝑍)
16	7, 15	sylan 580	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ_≥‘𝑁)) → 𝑘 ∈ 𝑍)
17		ntrivcvgmullem.8	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (𝐹‘𝑘) ∈ ℂ)
18	16, 17	syldan 591	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ_≥‘𝑁)) → (𝐹‘𝑘) ∈ ℂ)
19	2, 12, 13, 14, 18	ntrivcvgtail 15842	. . . . . 6 ⊢ (𝜑 → (( ⇝ ‘seq𝑃( · , 𝐹)) ≠ 0 ∧ seq𝑃( · , 𝐹) ⇝ ( ⇝ ‘seq𝑃( · , 𝐹))))
20	19	simprd 496	. . . . 5 ⊢ (𝜑 → seq𝑃( · , 𝐹) ⇝ ( ⇝ ‘seq𝑃( · , 𝐹)))
21		climcl 15439	. . . . 5 ⊢ (seq𝑃( · , 𝐹) ⇝ ( ⇝ ‘seq𝑃( · , 𝐹)) → ( ⇝ ‘seq𝑃( · , 𝐹)) ∈ ℂ)
22	20, 21	syl 17	. . . 4 ⊢ (𝜑 → ( ⇝ ‘seq𝑃( · , 𝐹)) ∈ ℂ)
23		ntrivcvgmullem.7	. . . . 5 ⊢ (𝜑 → seq𝑃( · , 𝐺) ⇝ 𝑌)
24		climcl 15439	. . . . 5 ⊢ (seq𝑃( · , 𝐺) ⇝ 𝑌 → 𝑌 ∈ ℂ)
25	23, 24	syl 17	. . . 4 ⊢ (𝜑 → 𝑌 ∈ ℂ)
26	19	simpld 495	. . . 4 ⊢ (𝜑 → ( ⇝ ‘seq𝑃( · , 𝐹)) ≠ 0)
27		ntrivcvgmullem.5	. . . 4 ⊢ (𝜑 → 𝑌 ≠ 0)
28	22, 25, 26, 27	mulne0d 11862	. . 3 ⊢ (𝜑 → (( ⇝ ‘seq𝑃( · , 𝐹)) · 𝑌) ≠ 0)
29		eqid 2732	. . . 4 ⊢ (ℤ_≥‘𝑃) = (ℤ_≥‘𝑃)
30		seqex 13964	. . . . 5 ⊢ seq𝑃( · , 𝐻) ∈ V
31	30	a1i 11	. . . 4 ⊢ (𝜑 → seq𝑃( · , 𝐻) ∈ V)
32	4	uztrn2 12837	. . . . . . . 8 ⊢ ((𝑃 ∈ 𝑍 ∧ 𝑘 ∈ (ℤ_≥‘𝑃)) → 𝑘 ∈ 𝑍)
33	1, 32	sylan 580	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ_≥‘𝑃)) → 𝑘 ∈ 𝑍)
34	33, 17	syldan 591	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ_≥‘𝑃)) → (𝐹‘𝑘) ∈ ℂ)
35	29, 9, 34	prodf 15829	. . . . 5 ⊢ (𝜑 → seq𝑃( · , 𝐹):(ℤ_≥‘𝑃)⟶ℂ)
36	35	ffvelcdmda 7083	. . . 4 ⊢ ((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑃)) → (seq𝑃( · , 𝐹)‘𝑗) ∈ ℂ)
37		ntrivcvgmullem.9	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (𝐺‘𝑘) ∈ ℂ)
38	33, 37	syldan 591	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ_≥‘𝑃)) → (𝐺‘𝑘) ∈ ℂ)
39	29, 9, 38	prodf 15829	. . . . 5 ⊢ (𝜑 → seq𝑃( · , 𝐺):(ℤ_≥‘𝑃)⟶ℂ)
40	39	ffvelcdmda 7083	. . . 4 ⊢ ((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑃)) → (seq𝑃( · , 𝐺)‘𝑗) ∈ ℂ)
41		simpr 485	. . . . 5 ⊢ ((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑃)) → 𝑗 ∈ (ℤ_≥‘𝑃))
42		simpll 765	. . . . . 6 ⊢ (((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑃)) ∧ 𝑘 ∈ (𝑃...𝑗)) → 𝜑)
43	1	adantr 481	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑃)) → 𝑃 ∈ 𝑍)
44		elfzuz 13493	. . . . . . 7 ⊢ (𝑘 ∈ (𝑃...𝑗) → 𝑘 ∈ (ℤ_≥‘𝑃))
45	43, 44, 32	syl2an 596	. . . . . 6 ⊢ (((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑃)) ∧ 𝑘 ∈ (𝑃...𝑗)) → 𝑘 ∈ 𝑍)
46	42, 45, 17	syl2anc 584	. . . . 5 ⊢ (((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑃)) ∧ 𝑘 ∈ (𝑃...𝑗)) → (𝐹‘𝑘) ∈ ℂ)
47	42, 45, 37	syl2anc 584	. . . . 5 ⊢ (((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑃)) ∧ 𝑘 ∈ (𝑃...𝑗)) → (𝐺‘𝑘) ∈ ℂ)
48		ntrivcvgmullem.b	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (𝐻‘𝑘) = ((𝐹‘𝑘) · (𝐺‘𝑘)))
49	42, 45, 48	syl2anc 584	. . . . 5 ⊢ (((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑃)) ∧ 𝑘 ∈ (𝑃...𝑗)) → (𝐻‘𝑘) = ((𝐹‘𝑘) · (𝐺‘𝑘)))
50	41, 46, 47, 49	prodfmul 15832	. . . 4 ⊢ ((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑃)) → (seq𝑃( · , 𝐻)‘𝑗) = ((seq𝑃( · , 𝐹)‘𝑗) · (seq𝑃( · , 𝐺)‘𝑗)))
51	29, 9, 20, 31, 23, 36, 40, 50	climmul 15573	. . 3 ⊢ (𝜑 → seq𝑃( · , 𝐻) ⇝ (( ⇝ ‘seq𝑃( · , 𝐹)) · 𝑌))
52		ovex 7438	. . . 4 ⊢ (( ⇝ ‘seq𝑃( · , 𝐹)) · 𝑌) ∈ V
53		neeq1 3003	. . . . 5 ⊢ (𝑤 = (( ⇝ ‘seq𝑃( · , 𝐹)) · 𝑌) → (𝑤 ≠ 0 ↔ (( ⇝ ‘seq𝑃( · , 𝐹)) · 𝑌) ≠ 0))
54		breq2 5151	. . . . 5 ⊢ (𝑤 = (( ⇝ ‘seq𝑃( · , 𝐹)) · 𝑌) → (seq𝑃( · , 𝐻) ⇝ 𝑤 ↔ seq𝑃( · , 𝐻) ⇝ (( ⇝ ‘seq𝑃( · , 𝐹)) · 𝑌)))
55	53, 54	anbi12d 631	. . . 4 ⊢ (𝑤 = (( ⇝ ‘seq𝑃( · , 𝐹)) · 𝑌) → ((𝑤 ≠ 0 ∧ seq𝑃( · , 𝐻) ⇝ 𝑤) ↔ ((( ⇝ ‘seq𝑃( · , 𝐹)) · 𝑌) ≠ 0 ∧ seq𝑃( · , 𝐻) ⇝ (( ⇝ ‘seq𝑃( · , 𝐹)) · 𝑌))))
56	52, 55	spcev 3596	. . 3 ⊢ (((( ⇝ ‘seq𝑃( · , 𝐹)) · 𝑌) ≠ 0 ∧ seq𝑃( · , 𝐻) ⇝ (( ⇝ ‘seq𝑃( · , 𝐹)) · 𝑌)) → ∃𝑤(𝑤 ≠ 0 ∧ seq𝑃( · , 𝐻) ⇝ 𝑤))
57	28, 51, 56	syl2anc 584	. 2 ⊢ (𝜑 → ∃𝑤(𝑤 ≠ 0 ∧ seq𝑃( · , 𝐻) ⇝ 𝑤))
58		seqeq1 13965	. . . . . 6 ⊢ (𝑞 = 𝑃 → seq𝑞( · , 𝐻) = seq𝑃( · , 𝐻))
59	58	breq1d 5157	. . . . 5 ⊢ (𝑞 = 𝑃 → (seq𝑞( · , 𝐻) ⇝ 𝑤 ↔ seq𝑃( · , 𝐻) ⇝ 𝑤))
60	59	anbi2d 629	. . . 4 ⊢ (𝑞 = 𝑃 → ((𝑤 ≠ 0 ∧ seq𝑞( · , 𝐻) ⇝ 𝑤) ↔ (𝑤 ≠ 0 ∧ seq𝑃( · , 𝐻) ⇝ 𝑤)))
61	60	exbidv 1924	. . 3 ⊢ (𝑞 = 𝑃 → (∃𝑤(𝑤 ≠ 0 ∧ seq𝑞( · , 𝐻) ⇝ 𝑤) ↔ ∃𝑤(𝑤 ≠ 0 ∧ seq𝑃( · , 𝐻) ⇝ 𝑤)))
62	61	rspcev 3612	. 2 ⊢ ((𝑃 ∈ 𝑍 ∧ ∃𝑤(𝑤 ≠ 0 ∧ seq𝑃( · , 𝐻) ⇝ 𝑤)) → ∃𝑞 ∈ 𝑍 ∃𝑤(𝑤 ≠ 0 ∧ seq𝑞( · , 𝐻) ⇝ 𝑤))
63	1, 57, 62	syl2anc 584	1 ⊢ (𝜑 → ∃𝑞 ∈ 𝑍 ∃𝑤(𝑤 ≠ 0 ∧ seq𝑞( · , 𝐻) ⇝ 𝑤))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 205 ∧ wa 396 = wceq 1541 ∃wex 1781 ∈ wcel 2106 ≠ wne 2940 ∃wrex 3070 Vcvv 3474 class class class wbr 5147 ‘cfv 6540 (class class class)co 7405 ℂcc 11104 0cc0 11106 · cmul 11111 ≤ cle 11245 ℤcz 12554 ℤ_≥cuz 12818 ...cfz 13480 seqcseq 13962 ⇝ cli 15424

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2703 ax-rep 5284 ax-sep 5298 ax-nul 5305 ax-pow 5362 ax-pr 5426 ax-un 7721 ax-inf2 9632 ax-cnex 11162 ax-resscn 11163 ax-1cn 11164 ax-icn 11165 ax-addcl 11166 ax-addrcl 11167 ax-mulcl 11168 ax-mulrcl 11169 ax-mulcom 11170 ax-addass 11171 ax-mulass 11172 ax-distr 11173 ax-i2m1 11174 ax-1ne0 11175 ax-1rid 11176 ax-rnegex 11177 ax-rrecex 11178 ax-cnre 11179 ax-pre-lttri 11180 ax-pre-lttrn 11181 ax-pre-ltadd 11182 ax-pre-mulgt0 11183 ax-pre-sup 11184

This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2534 df-eu 2563 df-clab 2710 df-cleq 2724 df-clel 2810 df-nfc 2885 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-rmo 3376 df-reu 3377 df-rab 3433 df-v 3476 df-sbc 3777 df-csb 3893 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-pss 3966 df-nul 4322 df-if 4528 df-pw 4603 df-sn 4628 df-pr 4630 df-op 4634 df-uni 4908 df-iun 4998 df-br 5148 df-opab 5210 df-mpt 5231 df-tr 5265 df-id 5573 df-eprel 5579 df-po 5587 df-so 5588 df-fr 5630 df-we 5632 df-xp 5681 df-rel 5682 df-cnv 5683 df-co 5684 df-dm 5685 df-rn 5686 df-res 5687 df-ima 5688 df-pred 6297 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6492 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-riota 7361 df-ov 7408 df-oprab 7409 df-mpo 7410 df-om 7852 df-1st 7971 df-2nd 7972 df-frecs 8262 df-wrecs 8293 df-recs 8367 df-rdg 8406 df-er 8699 df-en 8936 df-dom 8937 df-sdom 8938 df-sup 9433 df-pnf 11246 df-mnf 11247 df-xr 11248 df-ltxr 11249 df-le 11250 df-sub 11442 df-neg 11443 df-div 11868 df-nn 12209 df-2 12271 df-3 12272 df-n0 12469 df-z 12555 df-uz 12819 df-rp 12971 df-fz 13481 df-fzo 13624 df-seq 13963 df-exp 14024 df-cj 15042 df-re 15043 df-im 15044 df-sqrt 15178 df-abs 15179 df-clim 15428

This theorem is referenced by: ntrivcvgmul 15844

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