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Theorem lmclim 24820

Description: Relate a limit on the metric space of complex numbers to our complex number limit notation. (Contributed by NM, 9-Dec-2006.) (Revised by Mario Carneiro, 1-May-2014.)

**Hypotheses**
Ref	Expression
lmclim.2	⊢ 𝐽 = (TopOpen‘ℂ_fld)
lmclim.3	⊢ 𝑍 = (ℤ_≥‘𝑀)

**Assertion**
Ref	Expression
lmclim	⊢ ((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) → (𝐹(⇝_𝑡‘𝐽)𝑃 ↔ (𝐹 ∈ (ℂ ↑_pm ℂ) ∧ 𝐹 ⇝ 𝑃)))

Proof of Theorem lmclim Dummy variables 𝑗 𝑘 𝑥 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		3anass 1096	. . 3 ⊢ ((𝐹 ∈ (ℂ ↑_pm ℂ) ∧ 𝑃 ∈ ℂ ∧ ∀𝑥 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝑘 ∈ dom 𝐹 ∧ (𝐹‘𝑘) ∈ ℂ ∧ ((𝐹‘𝑘)(abs ∘ − )𝑃) < 𝑥)) ↔ (𝐹 ∈ (ℂ ↑_pm ℂ) ∧ (𝑃 ∈ ℂ ∧ ∀𝑥 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝑘 ∈ dom 𝐹 ∧ (𝐹‘𝑘) ∈ ℂ ∧ ((𝐹‘𝑘)(abs ∘ − )𝑃) < 𝑥))))
2		lmclim.3	. . . . . . . . . . 11 ⊢ 𝑍 = (ℤ_≥‘𝑀)
3	2	uztrn2 12841	. . . . . . . . . 10 ⊢ ((𝑗 ∈ 𝑍 ∧ 𝑘 ∈ (ℤ_≥‘𝑗)) → 𝑘 ∈ 𝑍)
4		3anass 1096	. . . . . . . . . . 11 ⊢ ((𝑘 ∈ dom 𝐹 ∧ (𝐹‘𝑘) ∈ ℂ ∧ ((𝐹‘𝑘)(abs ∘ − )𝑃) < 𝑥) ↔ (𝑘 ∈ dom 𝐹 ∧ ((𝐹‘𝑘) ∈ ℂ ∧ ((𝐹‘𝑘)(abs ∘ − )𝑃) < 𝑥)))
5		simplr 768	. . . . . . . . . . . . . 14 ⊢ (((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) ∧ 𝑃 ∈ ℂ) → 𝑍 ⊆ dom 𝐹)
6	5	sselda 3983	. . . . . . . . . . . . 13 ⊢ ((((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) ∧ 𝑃 ∈ ℂ) ∧ 𝑘 ∈ 𝑍) → 𝑘 ∈ dom 𝐹)
7	6	biantrurd 534	. . . . . . . . . . . 12 ⊢ ((((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) ∧ 𝑃 ∈ ℂ) ∧ 𝑘 ∈ 𝑍) → (((𝐹‘𝑘) ∈ ℂ ∧ ((𝐹‘𝑘)(abs ∘ − )𝑃) < 𝑥) ↔ (𝑘 ∈ dom 𝐹 ∧ ((𝐹‘𝑘) ∈ ℂ ∧ ((𝐹‘𝑘)(abs ∘ − )𝑃) < 𝑥))))
8		eqid 2733	. . . . . . . . . . . . . . . . 17 ⊢ (abs ∘ − ) = (abs ∘ − )
9	8	cnmetdval 24287	. . . . . . . . . . . . . . . 16 ⊢ (((𝐹‘𝑘) ∈ ℂ ∧ 𝑃 ∈ ℂ) → ((𝐹‘𝑘)(abs ∘ − )𝑃) = (abs‘((𝐹‘𝑘) − 𝑃)))
10	9	ancoms 460	. . . . . . . . . . . . . . 15 ⊢ ((𝑃 ∈ ℂ ∧ (𝐹‘𝑘) ∈ ℂ) → ((𝐹‘𝑘)(abs ∘ − )𝑃) = (abs‘((𝐹‘𝑘) − 𝑃)))
11	10	breq1d 5159	. . . . . . . . . . . . . 14 ⊢ ((𝑃 ∈ ℂ ∧ (𝐹‘𝑘) ∈ ℂ) → (((𝐹‘𝑘)(abs ∘ − )𝑃) < 𝑥 ↔ (abs‘((𝐹‘𝑘) − 𝑃)) < 𝑥))
12	11	pm5.32da 580	. . . . . . . . . . . . 13 ⊢ (𝑃 ∈ ℂ → (((𝐹‘𝑘) ∈ ℂ ∧ ((𝐹‘𝑘)(abs ∘ − )𝑃) < 𝑥) ↔ ((𝐹‘𝑘) ∈ ℂ ∧ (abs‘((𝐹‘𝑘) − 𝑃)) < 𝑥)))
13	12	ad2antlr 726	. . . . . . . . . . . 12 ⊢ ((((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) ∧ 𝑃 ∈ ℂ) ∧ 𝑘 ∈ 𝑍) → (((𝐹‘𝑘) ∈ ℂ ∧ ((𝐹‘𝑘)(abs ∘ − )𝑃) < 𝑥) ↔ ((𝐹‘𝑘) ∈ ℂ ∧ (abs‘((𝐹‘𝑘) − 𝑃)) < 𝑥)))
14	7, 13	bitr3d 281	. . . . . . . . . . 11 ⊢ ((((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) ∧ 𝑃 ∈ ℂ) ∧ 𝑘 ∈ 𝑍) → ((𝑘 ∈ dom 𝐹 ∧ ((𝐹‘𝑘) ∈ ℂ ∧ ((𝐹‘𝑘)(abs ∘ − )𝑃) < 𝑥)) ↔ ((𝐹‘𝑘) ∈ ℂ ∧ (abs‘((𝐹‘𝑘) − 𝑃)) < 𝑥)))
15	4, 14	bitrid 283	. . . . . . . . . 10 ⊢ ((((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) ∧ 𝑃 ∈ ℂ) ∧ 𝑘 ∈ 𝑍) → ((𝑘 ∈ dom 𝐹 ∧ (𝐹‘𝑘) ∈ ℂ ∧ ((𝐹‘𝑘)(abs ∘ − )𝑃) < 𝑥) ↔ ((𝐹‘𝑘) ∈ ℂ ∧ (abs‘((𝐹‘𝑘) − 𝑃)) < 𝑥)))
16	3, 15	sylan2 594	. . . . . . . . 9 ⊢ ((((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) ∧ 𝑃 ∈ ℂ) ∧ (𝑗 ∈ 𝑍 ∧ 𝑘 ∈ (ℤ_≥‘𝑗))) → ((𝑘 ∈ dom 𝐹 ∧ (𝐹‘𝑘) ∈ ℂ ∧ ((𝐹‘𝑘)(abs ∘ − )𝑃) < 𝑥) ↔ ((𝐹‘𝑘) ∈ ℂ ∧ (abs‘((𝐹‘𝑘) − 𝑃)) < 𝑥)))
17	16	anassrs 469	. . . . . . . 8 ⊢ (((((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) ∧ 𝑃 ∈ ℂ) ∧ 𝑗 ∈ 𝑍) ∧ 𝑘 ∈ (ℤ_≥‘𝑗)) → ((𝑘 ∈ dom 𝐹 ∧ (𝐹‘𝑘) ∈ ℂ ∧ ((𝐹‘𝑘)(abs ∘ − )𝑃) < 𝑥) ↔ ((𝐹‘𝑘) ∈ ℂ ∧ (abs‘((𝐹‘𝑘) − 𝑃)) < 𝑥)))
18	17	ralbidva 3176	. . . . . . 7 ⊢ ((((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) ∧ 𝑃 ∈ ℂ) ∧ 𝑗 ∈ 𝑍) → (∀𝑘 ∈ (ℤ_≥‘𝑗)(𝑘 ∈ dom 𝐹 ∧ (𝐹‘𝑘) ∈ ℂ ∧ ((𝐹‘𝑘)(abs ∘ − )𝑃) < 𝑥) ↔ ∀𝑘 ∈ (ℤ_≥‘𝑗)((𝐹‘𝑘) ∈ ℂ ∧ (abs‘((𝐹‘𝑘) − 𝑃)) < 𝑥)))
19	18	rexbidva 3177	. . . . . 6 ⊢ (((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) ∧ 𝑃 ∈ ℂ) → (∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝑘 ∈ dom 𝐹 ∧ (𝐹‘𝑘) ∈ ℂ ∧ ((𝐹‘𝑘)(abs ∘ − )𝑃) < 𝑥) ↔ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)((𝐹‘𝑘) ∈ ℂ ∧ (abs‘((𝐹‘𝑘) − 𝑃)) < 𝑥)))
20	19	ralbidv 3178	. . . . 5 ⊢ (((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) ∧ 𝑃 ∈ ℂ) → (∀𝑥 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝑘 ∈ dom 𝐹 ∧ (𝐹‘𝑘) ∈ ℂ ∧ ((𝐹‘𝑘)(abs ∘ − )𝑃) < 𝑥) ↔ ∀𝑥 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)((𝐹‘𝑘) ∈ ℂ ∧ (abs‘((𝐹‘𝑘) − 𝑃)) < 𝑥)))
21	20	pm5.32da 580	. . . 4 ⊢ ((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) → ((𝑃 ∈ ℂ ∧ ∀𝑥 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝑘 ∈ dom 𝐹 ∧ (𝐹‘𝑘) ∈ ℂ ∧ ((𝐹‘𝑘)(abs ∘ − )𝑃) < 𝑥)) ↔ (𝑃 ∈ ℂ ∧ ∀𝑥 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)((𝐹‘𝑘) ∈ ℂ ∧ (abs‘((𝐹‘𝑘) − 𝑃)) < 𝑥))))
22	21	anbi2d 630	. . 3 ⊢ ((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) → ((𝐹 ∈ (ℂ ↑_pm ℂ) ∧ (𝑃 ∈ ℂ ∧ ∀𝑥 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝑘 ∈ dom 𝐹 ∧ (𝐹‘𝑘) ∈ ℂ ∧ ((𝐹‘𝑘)(abs ∘ − )𝑃) < 𝑥))) ↔ (𝐹 ∈ (ℂ ↑_pm ℂ) ∧ (𝑃 ∈ ℂ ∧ ∀𝑥 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)((𝐹‘𝑘) ∈ ℂ ∧ (abs‘((𝐹‘𝑘) − 𝑃)) < 𝑥)))))
23	1, 22	bitrid 283	. 2 ⊢ ((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) → ((𝐹 ∈ (ℂ ↑_pm ℂ) ∧ 𝑃 ∈ ℂ ∧ ∀𝑥 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝑘 ∈ dom 𝐹 ∧ (𝐹‘𝑘) ∈ ℂ ∧ ((𝐹‘𝑘)(abs ∘ − )𝑃) < 𝑥)) ↔ (𝐹 ∈ (ℂ ↑_pm ℂ) ∧ (𝑃 ∈ ℂ ∧ ∀𝑥 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)((𝐹‘𝑘) ∈ ℂ ∧ (abs‘((𝐹‘𝑘) − 𝑃)) < 𝑥)))))
24		lmclim.2	. . . 4 ⊢ 𝐽 = (TopOpen‘ℂ_fld)
25	24	cnfldtopn 24298	. . 3 ⊢ 𝐽 = (MetOpen‘(abs ∘ − ))
26		cnxmet 24289	. . . 4 ⊢ (abs ∘ − ) ∈ (∞Met‘ℂ)
27	26	a1i 11	. . 3 ⊢ ((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) → (abs ∘ − ) ∈ (∞Met‘ℂ))
28		simpl 484	. . 3 ⊢ ((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) → 𝑀 ∈ ℤ)
29	25, 27, 2, 28	lmmbr3 24777	. 2 ⊢ ((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) → (𝐹(⇝_𝑡‘𝐽)𝑃 ↔ (𝐹 ∈ (ℂ ↑_pm ℂ) ∧ 𝑃 ∈ ℂ ∧ ∀𝑥 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝑘 ∈ dom 𝐹 ∧ (𝐹‘𝑘) ∈ ℂ ∧ ((𝐹‘𝑘)(abs ∘ − )𝑃) < 𝑥))))
30		simpll 766	. . . 4 ⊢ (((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) ∧ 𝐹 ∈ (ℂ ↑_pm ℂ)) → 𝑀 ∈ ℤ)
31		simpr 486	. . . 4 ⊢ (((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) ∧ 𝐹 ∈ (ℂ ↑_pm ℂ)) → 𝐹 ∈ (ℂ ↑_pm ℂ))
32		eqidd 2734	. . . 4 ⊢ ((((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) ∧ 𝐹 ∈ (ℂ ↑_pm ℂ)) ∧ 𝑘 ∈ 𝑍) → (𝐹‘𝑘) = (𝐹‘𝑘))
33	2, 30, 31, 32	clim2 15448	. . 3 ⊢ (((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) ∧ 𝐹 ∈ (ℂ ↑_pm ℂ)) → (𝐹 ⇝ 𝑃 ↔ (𝑃 ∈ ℂ ∧ ∀𝑥 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)((𝐹‘𝑘) ∈ ℂ ∧ (abs‘((𝐹‘𝑘) − 𝑃)) < 𝑥))))
34	33	pm5.32da 580	. 2 ⊢ ((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) → ((𝐹 ∈ (ℂ ↑_pm ℂ) ∧ 𝐹 ⇝ 𝑃) ↔ (𝐹 ∈ (ℂ ↑_pm ℂ) ∧ (𝑃 ∈ ℂ ∧ ∀𝑥 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)((𝐹‘𝑘) ∈ ℂ ∧ (abs‘((𝐹‘𝑘) − 𝑃)) < 𝑥)))))
35	23, 29, 34	3bitr4d 311	1 ⊢ ((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) → (𝐹(⇝_𝑡‘𝐽)𝑃 ↔ (𝐹 ∈ (ℂ ↑_pm ℂ) ∧ 𝐹 ⇝ 𝑃)))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 205 ∧ wa 397 ∧ w3a 1088 = wceq 1542 ∈ wcel 2107 ∀wral 3062 ∃wrex 3071 ⊆ wss 3949 class class class wbr 5149 dom cdm 5677 ∘ ccom 5681 ‘cfv 6544 (class class class)co 7409 ↑_pm cpm 8821 ℂcc 11108 < clt 11248 − cmin 11444 ℤcz 12558 ℤ_≥cuz 12822 ℝ⁺crp 12974 abscabs 15181 ⇝ cli 15428 TopOpenctopn 17367 ∞Metcxmet 20929 ℂ_fldccnfld 20944 ⇝_𝑡clm 22730

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2109 ax-9 2117 ax-10 2138 ax-11 2155 ax-12 2172 ax-ext 2704 ax-rep 5286 ax-sep 5300 ax-nul 5307 ax-pow 5364 ax-pr 5428 ax-un 7725 ax-cnex 11166 ax-resscn 11167 ax-1cn 11168 ax-icn 11169 ax-addcl 11170 ax-addrcl 11171 ax-mulcl 11172 ax-mulrcl 11173 ax-mulcom 11174 ax-addass 11175 ax-mulass 11176 ax-distr 11177 ax-i2m1 11178 ax-1ne0 11179 ax-1rid 11180 ax-rnegex 11181 ax-rrecex 11182 ax-cnre 11183 ax-pre-lttri 11184 ax-pre-lttrn 11185 ax-pre-ltadd 11186 ax-pre-mulgt0 11187 ax-pre-sup 11188

This theorem depends on definitions: df-bi 206 df-an 398 df-or 847 df-3or 1089 df-3an 1090 df-tru 1545 df-fal 1555 df-ex 1783 df-nf 1787 df-sb 2069 df-mo 2535 df-eu 2564 df-clab 2711 df-cleq 2725 df-clel 2811 df-nfc 2886 df-ne 2942 df-nel 3048 df-ral 3063 df-rex 3072 df-rmo 3377 df-reu 3378 df-rab 3434 df-v 3477 df-sbc 3779 df-csb 3895 df-dif 3952 df-un 3954 df-in 3956 df-ss 3966 df-pss 3968 df-nul 4324 df-if 4530 df-pw 4605 df-sn 4630 df-pr 4632 df-tp 4634 df-op 4636 df-uni 4910 df-iun 5000 df-br 5150 df-opab 5212 df-mpt 5233 df-tr 5267 df-id 5575 df-eprel 5581 df-po 5589 df-so 5590 df-fr 5632 df-we 5634 df-xp 5683 df-rel 5684 df-cnv 5685 df-co 5686 df-dm 5687 df-rn 5688 df-res 5689 df-ima 5690 df-pred 6301 df-ord 6368 df-on 6369 df-lim 6370 df-suc 6371 df-iota 6496 df-fun 6546 df-fn 6547 df-f 6548 df-f1 6549 df-fo 6550 df-f1o 6551 df-fv 6552 df-riota 7365 df-ov 7412 df-oprab 7413 df-mpo 7414 df-om 7856 df-1st 7975 df-2nd 7976 df-frecs 8266 df-wrecs 8297 df-recs 8371 df-rdg 8410 df-1o 8466 df-er 8703 df-map 8822 df-pm 8823 df-en 8940 df-dom 8941 df-sdom 8942 df-fin 8943 df-sup 9437 df-inf 9438 df-pnf 11250 df-mnf 11251 df-xr 11252 df-ltxr 11253 df-le 11254 df-sub 11446 df-neg 11447 df-div 11872 df-nn 12213 df-2 12275 df-3 12276 df-4 12277 df-5 12278 df-6 12279 df-7 12280 df-8 12281 df-9 12282 df-n0 12473 df-z 12559 df-dec 12678 df-uz 12823 df-q 12933 df-rp 12975 df-xneg 13092 df-xadd 13093 df-xmul 13094 df-fz 13485 df-seq 13967 df-exp 14028 df-cj 15046 df-re 15047 df-im 15048 df-sqrt 15182 df-abs 15183 df-clim 15432 df-struct 17080 df-slot 17115 df-ndx 17127 df-base 17145 df-plusg 17210 df-mulr 17211 df-starv 17212 df-tset 17216 df-ple 17217 df-ds 17219 df-unif 17220 df-rest 17368 df-topn 17369 df-topgen 17389 df-psmet 20936 df-xmet 20937 df-met 20938 df-bl 20939 df-mopn 20940 df-cnfld 20945 df-top 22396 df-topon 22413 df-bases 22449 df-lm 22733

This theorem is referenced by: lmclimf 24821

W3C validator