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Theorem lmclim 25044

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 1095	. . 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 12845	. . . . . . . . . 10 ⊢ ((𝑗 ∈ 𝑍 ∧ 𝑘 ∈ (ℤ_≥‘𝑗)) → 𝑘 ∈ 𝑍)
4		3anass 1095	. . . . . . . . . . 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 767	. . . . . . . . . . . . . 14 ⊢ (((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) ∧ 𝑃 ∈ ℂ) → 𝑍 ⊆ dom 𝐹)
6	5	sselda 3982	. . . . . . . . . . . . 13 ⊢ ((((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) ∧ 𝑃 ∈ ℂ) ∧ 𝑘 ∈ 𝑍) → 𝑘 ∈ dom 𝐹)
7	6	biantrurd 533	. . . . . . . . . . . 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 2732	. . . . . . . . . . . . . . . . 17 ⊢ (abs ∘ − ) = (abs ∘ − )
9	8	cnmetdval 24507	. . . . . . . . . . . . . . . 16 ⊢ (((𝐹‘𝑘) ∈ ℂ ∧ 𝑃 ∈ ℂ) → ((𝐹‘𝑘)(abs ∘ − )𝑃) = (abs‘((𝐹‘𝑘) − 𝑃)))
10	9	ancoms 459	. . . . . . . . . . . . . . 15 ⊢ ((𝑃 ∈ ℂ ∧ (𝐹‘𝑘) ∈ ℂ) → ((𝐹‘𝑘)(abs ∘ − )𝑃) = (abs‘((𝐹‘𝑘) − 𝑃)))
11	10	breq1d 5158	. . . . . . . . . . . . . 14 ⊢ ((𝑃 ∈ ℂ ∧ (𝐹‘𝑘) ∈ ℂ) → (((𝐹‘𝑘)(abs ∘ − )𝑃) < 𝑥 ↔ (abs‘((𝐹‘𝑘) − 𝑃)) < 𝑥))
12	11	pm5.32da 579	. . . . . . . . . . . . 13 ⊢ (𝑃 ∈ ℂ → (((𝐹‘𝑘) ∈ ℂ ∧ ((𝐹‘𝑘)(abs ∘ − )𝑃) < 𝑥) ↔ ((𝐹‘𝑘) ∈ ℂ ∧ (abs‘((𝐹‘𝑘) − 𝑃)) < 𝑥)))
13	12	ad2antlr 725	. . . . . . . . . . . 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 280	. . . . . . . . . . 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 282	. . . . . . . . . 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 593	. . . . . . . . 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 468	. . . . . . . 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 3175	. . . . . . 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 3176	. . . . . 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 3177	. . . . 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 579	. . . 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 629	. . 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 282	. 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 24518	. . 3 ⊢ 𝐽 = (MetOpen‘(abs ∘ − ))
26		cnxmet 24509	. . . 4 ⊢ (abs ∘ − ) ∈ (∞Met‘ℂ)
27	26	a1i 11	. . 3 ⊢ ((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) → (abs ∘ − ) ∈ (∞Met‘ℂ))
28		simpl 483	. . 3 ⊢ ((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) → 𝑀 ∈ ℤ)
29	25, 27, 2, 28	lmmbr3 25001	. 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 765	. . . 4 ⊢ (((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) ∧ 𝐹 ∈ (ℂ ↑_pm ℂ)) → 𝑀 ∈ ℤ)
31		simpr 485	. . . 4 ⊢ (((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) ∧ 𝐹 ∈ (ℂ ↑_pm ℂ)) → 𝐹 ∈ (ℂ ↑_pm ℂ))
32		eqidd 2733	. . . 4 ⊢ ((((𝑀 ∈ ℤ ∧ 𝑍 ⊆ dom 𝐹) ∧ 𝐹 ∈ (ℂ ↑_pm ℂ)) ∧ 𝑘 ∈ 𝑍) → (𝐹‘𝑘) = (𝐹‘𝑘))
33	2, 30, 31, 32	clim2 15452	. . 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 579	. 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 310	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 396 ∧ w3a 1087 = wceq 1541 ∈ wcel 2106 ∀wral 3061 ∃wrex 3070 ⊆ wss 3948 class class class wbr 5148 dom cdm 5676 ∘ ccom 5680 ‘cfv 6543 (class class class)co 7411 ↑_pm cpm 8823 ℂcc 11110 < clt 11252 − cmin 11448 ℤcz 12562 ℤ_≥cuz 12826 ℝ⁺crp 12978 abscabs 15185 ⇝ cli 15432 TopOpenctopn 17371 ∞Metcxmet 21129 ℂ_fldccnfld 21144 ⇝_𝑡clm 22950

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 5285 ax-sep 5299 ax-nul 5306 ax-pow 5363 ax-pr 5427 ax-un 7727 ax-cnex 11168 ax-resscn 11169 ax-1cn 11170 ax-icn 11171 ax-addcl 11172 ax-addrcl 11173 ax-mulcl 11174 ax-mulrcl 11175 ax-mulcom 11176 ax-addass 11177 ax-mulass 11178 ax-distr 11179 ax-i2m1 11180 ax-1ne0 11181 ax-1rid 11182 ax-rnegex 11183 ax-rrecex 11184 ax-cnre 11185 ax-pre-lttri 11186 ax-pre-lttrn 11187 ax-pre-ltadd 11188 ax-pre-mulgt0 11189 ax-pre-sup 11190

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 3778 df-csb 3894 df-dif 3951 df-un 3953 df-in 3955 df-ss 3965 df-pss 3967 df-nul 4323 df-if 4529 df-pw 4604 df-sn 4629 df-pr 4631 df-tp 4633 df-op 4635 df-uni 4909 df-iun 4999 df-br 5149 df-opab 5211 df-mpt 5232 df-tr 5266 df-id 5574 df-eprel 5580 df-po 5588 df-so 5589 df-fr 5631 df-we 5633 df-xp 5682 df-rel 5683 df-cnv 5684 df-co 5685 df-dm 5686 df-rn 5687 df-res 5688 df-ima 5689 df-pred 6300 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6495 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-riota 7367 df-ov 7414 df-oprab 7415 df-mpo 7416 df-om 7858 df-1st 7977 df-2nd 7978 df-frecs 8268 df-wrecs 8299 df-recs 8373 df-rdg 8412 df-1o 8468 df-er 8705 df-map 8824 df-pm 8825 df-en 8942 df-dom 8943 df-sdom 8944 df-fin 8945 df-sup 9439 df-inf 9440 df-pnf 11254 df-mnf 11255 df-xr 11256 df-ltxr 11257 df-le 11258 df-sub 11450 df-neg 11451 df-div 11876 df-nn 12217 df-2 12279 df-3 12280 df-4 12281 df-5 12282 df-6 12283 df-7 12284 df-8 12285 df-9 12286 df-n0 12477 df-z 12563 df-dec 12682 df-uz 12827 df-q 12937 df-rp 12979 df-xneg 13096 df-xadd 13097 df-xmul 13098 df-fz 13489 df-seq 13971 df-exp 14032 df-cj 15050 df-re 15051 df-im 15052 df-sqrt 15186 df-abs 15187 df-clim 15436 df-struct 17084 df-slot 17119 df-ndx 17131 df-base 17149 df-plusg 17214 df-mulr 17215 df-starv 17216 df-tset 17220 df-ple 17221 df-ds 17223 df-unif 17224 df-rest 17372 df-topn 17373 df-topgen 17393 df-psmet 21136 df-xmet 21137 df-met 21138 df-bl 21139 df-mopn 21140 df-cnfld 21145 df-top 22616 df-topon 22633 df-bases 22669 df-lm 22953

This theorem is referenced by: lmclimf 25045

W3C validator