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Theorem ntrivcvgmullem 15871

Description: Lemma for ntrivcvgmul 15872. (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 2727	. . . . . . 7 ⊢ (ℤ_≥‘𝑁) = (ℤ_≥‘𝑁)
3		ntrivcvgmullem.a	. . . . . . . 8 ⊢ (𝜑 → 𝑁 ≤ 𝑃)
4		ntrivcvgmullem.1	. . . . . . . . . . 11 ⊢ 𝑍 = (ℤ_≥‘𝑀)
5		uzssz 12865	. . . . . . . . . . 11 ⊢ (ℤ_≥‘𝑀) ⊆ ℤ
6	4, 5	eqsstri 4012	. . . . . . . . . 10 ⊢ 𝑍 ⊆ ℤ
7		ntrivcvgmullem.2	. . . . . . . . . 10 ⊢ (𝜑 → 𝑁 ∈ 𝑍)
8	6, 7	sselid 3976	. . . . . . . . 9 ⊢ (𝜑 → 𝑁 ∈ ℤ)
9	6, 1	sselid 3976	. . . . . . . . 9 ⊢ (𝜑 → 𝑃 ∈ ℤ)
10		eluz 12858	. . . . . . . . 9 ⊢ ((𝑁 ∈ ℤ ∧ 𝑃 ∈ ℤ) → (𝑃 ∈ (ℤ_≥‘𝑁) ↔ 𝑁 ≤ 𝑃))
11	8, 9, 10	syl2anc 583	. . . . . . . 8 ⊢ (𝜑 → (𝑃 ∈ (ℤ_≥‘𝑁) ↔ 𝑁 ≤ 𝑃))
12	3, 11	mpbird 257	. . . . . . 7 ⊢ (𝜑 → 𝑃 ∈ (ℤ_≥‘𝑁))
13		ntrivcvgmullem.6	. . . . . . 7 ⊢ (𝜑 → seq𝑁( · , 𝐹) ⇝ 𝑋)
14		ntrivcvgmullem.4	. . . . . . 7 ⊢ (𝜑 → 𝑋 ≠ 0)
15	4	uztrn2 12863	. . . . . . . . 9 ⊢ ((𝑁 ∈ 𝑍 ∧ 𝑘 ∈ (ℤ_≥‘𝑁)) → 𝑘 ∈ 𝑍)
16	7, 15	sylan 579	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ_≥‘𝑁)) → 𝑘 ∈ 𝑍)
17		ntrivcvgmullem.8	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (𝐹‘𝑘) ∈ ℂ)
18	16, 17	syldan 590	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ_≥‘𝑁)) → (𝐹‘𝑘) ∈ ℂ)
19	2, 12, 13, 14, 18	ntrivcvgtail 15870	. . . . . 6 ⊢ (𝜑 → (( ⇝ ‘seq𝑃( · , 𝐹)) ≠ 0 ∧ seq𝑃( · , 𝐹) ⇝ ( ⇝ ‘seq𝑃( · , 𝐹))))
20	19	simprd 495	. . . . 5 ⊢ (𝜑 → seq𝑃( · , 𝐹) ⇝ ( ⇝ ‘seq𝑃( · , 𝐹)))
21		climcl 15467	. . . . 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 15467	. . . . 5 ⊢ (seq𝑃( · , 𝐺) ⇝ 𝑌 → 𝑌 ∈ ℂ)
25	23, 24	syl 17	. . . 4 ⊢ (𝜑 → 𝑌 ∈ ℂ)
26	19	simpld 494	. . . 4 ⊢ (𝜑 → ( ⇝ ‘seq𝑃( · , 𝐹)) ≠ 0)
27		ntrivcvgmullem.5	. . . 4 ⊢ (𝜑 → 𝑌 ≠ 0)
28	22, 25, 26, 27	mulne0d 11888	. . 3 ⊢ (𝜑 → (( ⇝ ‘seq𝑃( · , 𝐹)) · 𝑌) ≠ 0)
29		eqid 2727	. . . 4 ⊢ (ℤ_≥‘𝑃) = (ℤ_≥‘𝑃)
30		seqex 13992	. . . . 5 ⊢ seq𝑃( · , 𝐻) ∈ V
31	30	a1i 11	. . . 4 ⊢ (𝜑 → seq𝑃( · , 𝐻) ∈ V)
32	4	uztrn2 12863	. . . . . . . 8 ⊢ ((𝑃 ∈ 𝑍 ∧ 𝑘 ∈ (ℤ_≥‘𝑃)) → 𝑘 ∈ 𝑍)
33	1, 32	sylan 579	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ_≥‘𝑃)) → 𝑘 ∈ 𝑍)
34	33, 17	syldan 590	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ_≥‘𝑃)) → (𝐹‘𝑘) ∈ ℂ)
35	29, 9, 34	prodf 15857	. . . . 5 ⊢ (𝜑 → seq𝑃( · , 𝐹):(ℤ_≥‘𝑃)⟶ℂ)
36	35	ffvelcdmda 7088	. . . 4 ⊢ ((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑃)) → (seq𝑃( · , 𝐹)‘𝑗) ∈ ℂ)
37		ntrivcvgmullem.9	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (𝐺‘𝑘) ∈ ℂ)
38	33, 37	syldan 590	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ_≥‘𝑃)) → (𝐺‘𝑘) ∈ ℂ)
39	29, 9, 38	prodf 15857	. . . . 5 ⊢ (𝜑 → seq𝑃( · , 𝐺):(ℤ_≥‘𝑃)⟶ℂ)
40	39	ffvelcdmda 7088	. . . 4 ⊢ ((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑃)) → (seq𝑃( · , 𝐺)‘𝑗) ∈ ℂ)
41		simpr 484	. . . . 5 ⊢ ((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑃)) → 𝑗 ∈ (ℤ_≥‘𝑃))
42		simpll 766	. . . . . 6 ⊢ (((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑃)) ∧ 𝑘 ∈ (𝑃...𝑗)) → 𝜑)
43	1	adantr 480	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑃)) → 𝑃 ∈ 𝑍)
44		elfzuz 13521	. . . . . . 7 ⊢ (𝑘 ∈ (𝑃...𝑗) → 𝑘 ∈ (ℤ_≥‘𝑃))
45	43, 44, 32	syl2an 595	. . . . . 6 ⊢ (((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑃)) ∧ 𝑘 ∈ (𝑃...𝑗)) → 𝑘 ∈ 𝑍)
46	42, 45, 17	syl2anc 583	. . . . 5 ⊢ (((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑃)) ∧ 𝑘 ∈ (𝑃...𝑗)) → (𝐹‘𝑘) ∈ ℂ)
47	42, 45, 37	syl2anc 583	. . . . 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 583	. . . . 5 ⊢ (((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑃)) ∧ 𝑘 ∈ (𝑃...𝑗)) → (𝐻‘𝑘) = ((𝐹‘𝑘) · (𝐺‘𝑘)))
50	41, 46, 47, 49	prodfmul 15860	. . . 4 ⊢ ((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑃)) → (seq𝑃( · , 𝐻)‘𝑗) = ((seq𝑃( · , 𝐹)‘𝑗) · (seq𝑃( · , 𝐺)‘𝑗)))
51	29, 9, 20, 31, 23, 36, 40, 50	climmul 15601	. . 3 ⊢ (𝜑 → seq𝑃( · , 𝐻) ⇝ (( ⇝ ‘seq𝑃( · , 𝐹)) · 𝑌))
52		ovex 7447	. . . 4 ⊢ (( ⇝ ‘seq𝑃( · , 𝐹)) · 𝑌) ∈ V
53		neeq1 2998	. . . . 5 ⊢ (𝑤 = (( ⇝ ‘seq𝑃( · , 𝐹)) · 𝑌) → (𝑤 ≠ 0 ↔ (( ⇝ ‘seq𝑃( · , 𝐹)) · 𝑌) ≠ 0))
54		breq2 5146	. . . . 5 ⊢ (𝑤 = (( ⇝ ‘seq𝑃( · , 𝐹)) · 𝑌) → (seq𝑃( · , 𝐻) ⇝ 𝑤 ↔ seq𝑃( · , 𝐻) ⇝ (( ⇝ ‘seq𝑃( · , 𝐹)) · 𝑌)))
55	53, 54	anbi12d 630	. . . 4 ⊢ (𝑤 = (( ⇝ ‘seq𝑃( · , 𝐹)) · 𝑌) → ((𝑤 ≠ 0 ∧ seq𝑃( · , 𝐻) ⇝ 𝑤) ↔ ((( ⇝ ‘seq𝑃( · , 𝐹)) · 𝑌) ≠ 0 ∧ seq𝑃( · , 𝐻) ⇝ (( ⇝ ‘seq𝑃( · , 𝐹)) · 𝑌))))
56	52, 55	spcev 3591	. . 3 ⊢ (((( ⇝ ‘seq𝑃( · , 𝐹)) · 𝑌) ≠ 0 ∧ seq𝑃( · , 𝐻) ⇝ (( ⇝ ‘seq𝑃( · , 𝐹)) · 𝑌)) → ∃𝑤(𝑤 ≠ 0 ∧ seq𝑃( · , 𝐻) ⇝ 𝑤))
57	28, 51, 56	syl2anc 583	. 2 ⊢ (𝜑 → ∃𝑤(𝑤 ≠ 0 ∧ seq𝑃( · , 𝐻) ⇝ 𝑤))
58		seqeq1 13993	. . . . . 6 ⊢ (𝑞 = 𝑃 → seq𝑞( · , 𝐻) = seq𝑃( · , 𝐻))
59	58	breq1d 5152	. . . . 5 ⊢ (𝑞 = 𝑃 → (seq𝑞( · , 𝐻) ⇝ 𝑤 ↔ seq𝑃( · , 𝐻) ⇝ 𝑤))
60	59	anbi2d 628	. . . 4 ⊢ (𝑞 = 𝑃 → ((𝑤 ≠ 0 ∧ seq𝑞( · , 𝐻) ⇝ 𝑤) ↔ (𝑤 ≠ 0 ∧ seq𝑃( · , 𝐻) ⇝ 𝑤)))
61	60	exbidv 1917	. . 3 ⊢ (𝑞 = 𝑃 → (∃𝑤(𝑤 ≠ 0 ∧ seq𝑞( · , 𝐻) ⇝ 𝑤) ↔ ∃𝑤(𝑤 ≠ 0 ∧ seq𝑃( · , 𝐻) ⇝ 𝑤)))
62	61	rspcev 3607	. 2 ⊢ ((𝑃 ∈ 𝑍 ∧ ∃𝑤(𝑤 ≠ 0 ∧ seq𝑃( · , 𝐻) ⇝ 𝑤)) → ∃𝑞 ∈ 𝑍 ∃𝑤(𝑤 ≠ 0 ∧ seq𝑞( · , 𝐻) ⇝ 𝑤))
63	1, 57, 62	syl2anc 583	1 ⊢ (𝜑 → ∃𝑞 ∈ 𝑍 ∃𝑤(𝑤 ≠ 0 ∧ seq𝑞( · , 𝐻) ⇝ 𝑤))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 205 ∧ wa 395 = wceq 1534 ∃wex 1774 ∈ wcel 2099 ≠ wne 2935 ∃wrex 3065 Vcvv 3469 class class class wbr 5142 ‘cfv 6542 (class class class)co 7414 ℂcc 11128 0cc0 11130 · cmul 11135 ≤ cle 11271 ℤcz 12580 ℤ_≥cuz 12844 ...cfz 13508 seqcseq 13990 ⇝ cli 15452

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 2164 ax-ext 2698 ax-rep 5279 ax-sep 5293 ax-nul 5300 ax-pow 5359 ax-pr 5423 ax-un 7734 ax-inf2 9656 ax-cnex 11186 ax-resscn 11187 ax-1cn 11188 ax-icn 11189 ax-addcl 11190 ax-addrcl 11191 ax-mulcl 11192 ax-mulrcl 11193 ax-mulcom 11194 ax-addass 11195 ax-mulass 11196 ax-distr 11197 ax-i2m1 11198 ax-1ne0 11199 ax-1rid 11200 ax-rnegex 11201 ax-rrecex 11202 ax-cnre 11203 ax-pre-lttri 11204 ax-pre-lttrn 11205 ax-pre-ltadd 11206 ax-pre-mulgt0 11207 ax-pre-sup 11208

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 2529 df-eu 2558 df-clab 2705 df-cleq 2719 df-clel 2805 df-nfc 2880 df-ne 2936 df-nel 3042 df-ral 3057 df-rex 3066 df-rmo 3371 df-reu 3372 df-rab 3428 df-v 3471 df-sbc 3775 df-csb 3890 df-dif 3947 df-un 3949 df-in 3951 df-ss 3961 df-pss 3963 df-nul 4319 df-if 4525 df-pw 4600 df-sn 4625 df-pr 4627 df-op 4631 df-uni 4904 df-iun 4993 df-br 5143 df-opab 5205 df-mpt 5226 df-tr 5260 df-id 5570 df-eprel 5576 df-po 5584 df-so 5585 df-fr 5627 df-we 5629 df-xp 5678 df-rel 5679 df-cnv 5680 df-co 5681 df-dm 5682 df-rn 5683 df-res 5684 df-ima 5685 df-pred 6299 df-ord 6366 df-on 6367 df-lim 6368 df-suc 6369 df-iota 6494 df-fun 6544 df-fn 6545 df-f 6546 df-f1 6547 df-fo 6548 df-f1o 6549 df-fv 6550 df-riota 7370 df-ov 7417 df-oprab 7418 df-mpo 7419 df-om 7865 df-1st 7987 df-2nd 7988 df-frecs 8280 df-wrecs 8311 df-recs 8385 df-rdg 8424 df-er 8718 df-en 8956 df-dom 8957 df-sdom 8958 df-sup 9457 df-pnf 11272 df-mnf 11273 df-xr 11274 df-ltxr 11275 df-le 11276 df-sub 11468 df-neg 11469 df-div 11894 df-nn 12235 df-2 12297 df-3 12298 df-n0 12495 df-z 12581 df-uz 12845 df-rp 12999 df-fz 13509 df-fzo 13652 df-seq 13991 df-exp 14051 df-cj 15070 df-re 15071 df-im 15072 df-sqrt 15206 df-abs 15207 df-clim 15456

This theorem is referenced by: ntrivcvgmul 15872

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