limcrecl - Mathbox for Glauco Siliprandi

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Theorem limcrecl 46780

Description: If 𝐹 is a real-valued function, 𝐵 is a limit point of its domain, and the limit of 𝐹 at 𝐵 exists, then this limit is real. (Contributed by Glauco Siliprandi, 11-Dec-2019.)

**Hypotheses**
Ref	Expression
limcrecl.1	⊢ (𝜑 → 𝐹:𝐴⟶ℝ)
limcrecl.2	⊢ (𝜑 → 𝐴 ⊆ ℂ)
limcrecl.3	⊢ (𝜑 → 𝐵 ∈ ((limPt‘(TopOpen‘ℂ_fld))‘𝐴))
limcrecl.4	⊢ (𝜑 → 𝐿 ∈ (𝐹 lim_ℂ 𝐵))

**Assertion**
Ref	Expression
limcrecl	⊢ (𝜑 → 𝐿 ∈ ℝ)

Proof of Theorem limcrecl Dummy variables 𝑥 𝑦 𝑧 𝑤 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		limcrecl.4	. . 3 ⊢ (𝜑 → 𝐿 ∈ (𝐹 lim_ℂ 𝐵))
2	1	adantr 486	. 2 ⊢ ((𝜑 ∧ ¬ 𝐿 ∈ ℝ) → 𝐿 ∈ (𝐹 lim_ℂ 𝐵))
3		limccl 26207	. . . . . . . . . 10 ⊢ (𝐹 lim_ℂ 𝐵) ⊆ ℂ
4	3, 1	sselid 3910	. . . . . . . . 9 ⊢ (𝜑 → 𝐿 ∈ ℂ)
5	4	adantr 486	. . . . . . . 8 ⊢ ((𝜑 ∧ ¬ 𝐿 ∈ ℝ) → 𝐿 ∈ ℂ)
6		simpr 490	. . . . . . . 8 ⊢ ((𝜑 ∧ ¬ 𝐿 ∈ ℝ) → ¬ 𝐿 ∈ ℝ)
7	5, 6	eldifd 4052	. . . . . . 7 ⊢ ((𝜑 ∧ ¬ 𝐿 ∈ ℝ) → 𝐿 ∈ (ℂ ∖ ℝ))
8	7	dstregt0 46437	. . . . . 6 ⊢ ((𝜑 ∧ ¬ 𝐿 ∈ ℝ) → ∃𝑥 ∈ ℝ⁺ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤)))
9		cnxmet 25103	. . . . . . . . . . . . . 14 ⊢ (abs ∘ − ) ∈ (∞Met‘ℂ)
10	9	a1i 11	. . . . . . . . . . . . 13 ⊢ (((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) → (abs ∘ − ) ∈ (∞Met‘ℂ))
11		limcrecl.2	. . . . . . . . . . . . . . 15 ⊢ (𝜑 → 𝐴 ⊆ ℂ)
12	11	ad4antr 745	. . . . . . . . . . . . . 14 ⊢ (((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) → 𝐴 ⊆ ℂ)
13	12	ssdifssd 4085	. . . . . . . . . . . . 13 ⊢ (((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) → (𝐴 ∖ {𝐵}) ⊆ ℂ)
14		limcrecl.3	. . . . . . . . . . . . . . 15 ⊢ (𝜑 → 𝐵 ∈ ((limPt‘(TopOpen‘ℂ_fld))‘𝐴))
15		eqid 2763	. . . . . . . . . . . . . . . . . 18 ⊢ (TopOpen‘ℂ_fld) = (TopOpen‘ℂ_fld)
16	15	cnfldtop 25114	. . . . . . . . . . . . . . . . 17 ⊢ (TopOpen‘ℂ_fld) ∈ Top
17	16	a1i 11	. . . . . . . . . . . . . . . 16 ⊢ (𝜑 → (TopOpen‘ℂ_fld) ∈ Top)
18		unicntop 25116	. . . . . . . . . . . . . . . . 17 ⊢ ℂ = ∪ (TopOpen‘ℂ_fld)
19	11, 18	sseqtrdi 3952	. . . . . . . . . . . . . . . 16 ⊢ (𝜑 → 𝐴 ⊆ ∪ (TopOpen‘ℂ_fld))
20		eqid 2763	. . . . . . . . . . . . . . . . 17 ⊢ ∪ (TopOpen‘ℂ_fld) = ∪ (TopOpen‘ℂ_fld)
21	20	lpdifsn 23473	. . . . . . . . . . . . . . . 16 ⊢ (((TopOpen‘ℂ_fld) ∈ Top ∧ 𝐴 ⊆ ∪ (TopOpen‘ℂ_fld)) → (𝐵 ∈ ((limPt‘(TopOpen‘ℂ_fld))‘𝐴) ↔ 𝐵 ∈ ((limPt‘(TopOpen‘ℂ_fld))‘(𝐴 ∖ {𝐵}))))
22	17, 19, 21	syl2anc 596	. . . . . . . . . . . . . . 15 ⊢ (𝜑 → (𝐵 ∈ ((limPt‘(TopOpen‘ℂ_fld))‘𝐴) ↔ 𝐵 ∈ ((limPt‘(TopOpen‘ℂ_fld))‘(𝐴 ∖ {𝐵}))))
23	14, 22	mpbid 235	. . . . . . . . . . . . . 14 ⊢ (𝜑 → 𝐵 ∈ ((limPt‘(TopOpen‘ℂ_fld))‘(𝐴 ∖ {𝐵})))
24	23	ad4antr 745	. . . . . . . . . . . . 13 ⊢ (((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) → 𝐵 ∈ ((limPt‘(TopOpen‘ℂ_fld))‘(𝐴 ∖ {𝐵})))
25		simpr 490	. . . . . . . . . . . . 13 ⊢ (((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) → 𝑦 ∈ ℝ⁺)
26	15	cnfldtopn 25112	. . . . . . . . . . . . . 14 ⊢ (TopOpen‘ℂ_fld) = (MetOpen‘(abs ∘ − ))
27	26	lpbl 24834	. . . . . . . . . . . . 13 ⊢ ((((abs ∘ − ) ∈ (∞Met‘ℂ) ∧ (𝐴 ∖ {𝐵}) ⊆ ℂ ∧ 𝐵 ∈ ((limPt‘(TopOpen‘ℂ_fld))‘(𝐴 ∖ {𝐵}))) ∧ 𝑦 ∈ ℝ⁺) → ∃𝑧 ∈ (𝐴 ∖ {𝐵})𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))
28	10, 13, 24, 25, 27	syl31anc 1400	. . . . . . . . . . . 12 ⊢ (((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) → ∃𝑧 ∈ (𝐴 ∖ {𝐵})𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))
29		eldif 4051	. . . . . . . . . . . . . . 15 ⊢ (𝑧 ∈ (𝐴 ∖ {𝐵}) ↔ (𝑧 ∈ 𝐴 ∧ ¬ 𝑧 ∈ {𝐵}))
30	29	anbi1i 636	. . . . . . . . . . . . . 14 ⊢ ((𝑧 ∈ (𝐴 ∖ {𝐵}) ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) ↔ ((𝑧 ∈ 𝐴 ∧ ¬ 𝑧 ∈ {𝐵}) ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)))
31		anass 474	. . . . . . . . . . . . . 14 ⊢ (((𝑧 ∈ 𝐴 ∧ ¬ 𝑧 ∈ {𝐵}) ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) ↔ (𝑧 ∈ 𝐴 ∧ (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))))
32	30, 31	bitri 278	. . . . . . . . . . . . 13 ⊢ ((𝑧 ∈ (𝐴 ∖ {𝐵}) ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) ↔ (𝑧 ∈ 𝐴 ∧ (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))))
33	32	rexbii2 3108	. . . . . . . . . . . 12 ⊢ (∃𝑧 ∈ (𝐴 ∖ {𝐵})𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦) ↔ ∃𝑧 ∈ 𝐴 (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)))
34	28, 33	sylib 221	. . . . . . . . . . 11 ⊢ (((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) → ∃𝑧 ∈ 𝐴 (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)))
35		simprl 783	. . . . . . . . . . . . . . . . 17 ⊢ ((((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) ∧ (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))) → ¬ 𝑧 ∈ {𝐵})
36		velsn 4599	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑧 ∈ {𝐵} ↔ 𝑧 = 𝐵)
37	36	necon3bbii 3005	. . . . . . . . . . . . . . . . 17 ⊢ (¬ 𝑧 ∈ {𝐵} ↔ 𝑧 ≠ 𝐵)
38	35, 37	sylib 221	. . . . . . . . . . . . . . . 16 ⊢ ((((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) ∧ (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))) → 𝑧 ≠ 𝐵)
39		simp-5l 797	. . . . . . . . . . . . . . . . 17 ⊢ ((((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) ∧ (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))) → 𝜑)
40		simplr 781	. . . . . . . . . . . . . . . . 17 ⊢ ((((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) ∧ (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))) → 𝑦 ∈ ℝ⁺)
41		simprr 785	. . . . . . . . . . . . . . . . 17 ⊢ ((((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) ∧ (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))) → 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))
42		simp3 1156	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))
43	9	a1i 11	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → (abs ∘ − ) ∈ (∞Met‘ℂ))
44	18	lpss 23472	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (((TopOpen‘ℂ_fld) ∈ Top ∧ 𝐴 ⊆ ℂ) → ((limPt‘(TopOpen‘ℂ_fld))‘𝐴) ⊆ ℂ)
45	17, 11, 44	syl2anc 596	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (𝜑 → ((limPt‘(TopOpen‘ℂ_fld))‘𝐴) ⊆ ℂ)
46	45, 14	sseldd 3913	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝜑 → 𝐵 ∈ ℂ)
47	46	3ad2ant1 1151	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → 𝐵 ∈ ℂ)
48		rpxr 13140	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝑦 ∈ ℝ⁺ → 𝑦 ∈ ℝ^*)
49	48	3ad2ant2 1152	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → 𝑦 ∈ ℝ^*)
50		elbl 24719	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((abs ∘ − ) ∈ (∞Met‘ℂ) ∧ 𝐵 ∈ ℂ ∧ 𝑦 ∈ ℝ^*) → (𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦) ↔ (𝑧 ∈ ℂ ∧ (𝐵(abs ∘ − )𝑧) < 𝑦)))
51	43, 47, 49, 50	syl3anc 1398	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → (𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦) ↔ (𝑧 ∈ ℂ ∧ (𝐵(abs ∘ − )𝑧) < 𝑦)))
52	42, 51	mpbid 235	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → (𝑧 ∈ ℂ ∧ (𝐵(abs ∘ − )𝑧) < 𝑦))
53	52	simpld 500	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → 𝑧 ∈ ℂ)
54	53, 47	abssubd 15635	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → (abs‘(𝑧 − 𝐵)) = (abs‘(𝐵 − 𝑧)))
55		eqid 2763	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (abs ∘ − ) = (abs ∘ − )
56	55	cnmetdval 25101	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝐵 ∈ ℂ ∧ 𝑧 ∈ ℂ) → (𝐵(abs ∘ − )𝑧) = (abs‘(𝐵 − 𝑧)))
57	47, 53, 56	syl2anc 596	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → (𝐵(abs ∘ − )𝑧) = (abs‘(𝐵 − 𝑧)))
58	52	simprd 501	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → (𝐵(abs ∘ − )𝑧) < 𝑦)
59	57, 58	eqbrtrrd 5131	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → (abs‘(𝐵 − 𝑧)) < 𝑦)
60	54, 59	eqbrtrd 5129	. . . . . . . . . . . . . . . . 17 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → (abs‘(𝑧 − 𝐵)) < 𝑦)
61	39, 40, 41, 60	syl3anc 1398	. . . . . . . . . . . . . . . 16 ⊢ ((((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) ∧ (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))) → (abs‘(𝑧 − 𝐵)) < 𝑦)
62	38, 61	jca 521	. . . . . . . . . . . . . . 15 ⊢ ((((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) ∧ (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))) → (𝑧 ≠ 𝐵 ∧ (abs‘(𝑧 − 𝐵)) < 𝑦))
63	62	adantlr 728	. . . . . . . . . . . . . 14 ⊢ (((((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) ∧ 𝑧 ∈ 𝐴) ∧ (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))) → (𝑧 ≠ 𝐵 ∧ (abs‘(𝑧 − 𝐵)) < 𝑦))
64	39	adantlr 728	. . . . . . . . . . . . . . . 16 ⊢ (((((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) ∧ 𝑧 ∈ 𝐴) ∧ (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))) → 𝜑)
65		simplr 781	. . . . . . . . . . . . . . . 16 ⊢ (((((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) ∧ 𝑧 ∈ 𝐴) ∧ (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))) → 𝑧 ∈ 𝐴)
66	64, 65	jca 521	. . . . . . . . . . . . . . 15 ⊢ (((((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) ∧ 𝑧 ∈ 𝐴) ∧ (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))) → (𝜑 ∧ 𝑧 ∈ 𝐴))
67		simp-5r 798	. . . . . . . . . . . . . . 15 ⊢ (((((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) ∧ 𝑧 ∈ 𝐴) ∧ (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))) → 𝑥 ∈ ℝ⁺)
68		simp-4r 796	. . . . . . . . . . . . . . 15 ⊢ (((((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) ∧ 𝑧 ∈ 𝐴) ∧ (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))) → ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤)))
69		rpre 13139	. . . . . . . . . . . . . . . . 17 ⊢ (𝑥 ∈ ℝ⁺ → 𝑥 ∈ ℝ)
70	69	ad2antlr 740	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ 𝑧 ∈ 𝐴) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → 𝑥 ∈ ℝ)
71		limcrecl.1	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝜑 → 𝐹:𝐴⟶ℝ)
72	71	ffvelcdmda 7092	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ 𝑧 ∈ 𝐴) → (𝐹‘𝑧) ∈ ℝ)
73	72	recnd 11347	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ 𝑧 ∈ 𝐴) → (𝐹‘𝑧) ∈ ℂ)
74	73	ad2antrr 739	. . . . . . . . . . . . . . . . . 18 ⊢ ((((𝜑 ∧ 𝑧 ∈ 𝐴) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → (𝐹‘𝑧) ∈ ℂ)
75	4	ad3antrrr 743	. . . . . . . . . . . . . . . . . 18 ⊢ ((((𝜑 ∧ 𝑧 ∈ 𝐴) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → 𝐿 ∈ ℂ)
76	74, 75	subcld 11679	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝜑 ∧ 𝑧 ∈ 𝐴) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → ((𝐹‘𝑧) − 𝐿) ∈ ℂ)
77	76	abscld 15618	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ 𝑧 ∈ 𝐴) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → (abs‘((𝐹‘𝑧) − 𝐿)) ∈ ℝ)
78	72	adantr 486	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝜑 ∧ 𝑧 ∈ 𝐴) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → (𝐹‘𝑧) ∈ ℝ)
79		nfv 1948	. . . . . . . . . . . . . . . . . . . . 21 ⊢ Ⅎ𝑤𝜑
80		nfra1 3289	. . . . . . . . . . . . . . . . . . . . 21 ⊢ Ⅎ𝑤∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))
81	79, 80	nfan 1933	. . . . . . . . . . . . . . . . . . . 20 ⊢ Ⅎ𝑤(𝜑 ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤)))
82		rspa 3254	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤)) ∧ 𝑤 ∈ ℝ) → 𝑥 < (abs‘(𝐿 − 𝑤)))
83	82	adantll 727	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((𝜑 ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑤 ∈ ℝ) → 𝑥 < (abs‘(𝐿 − 𝑤)))
84	4	adantr 486	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝜑 ∧ 𝑤 ∈ ℝ) → 𝐿 ∈ ℂ)
85		ax-resscn 11267	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ ℝ ⊆ ℂ
86	85	a1i 11	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (𝜑 → ℝ ⊆ ℂ)
87	86	sselda 3912	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝜑 ∧ 𝑤 ∈ ℝ) → 𝑤 ∈ ℂ)
88	84, 87	abssubd 15635	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((𝜑 ∧ 𝑤 ∈ ℝ) → (abs‘(𝐿 − 𝑤)) = (abs‘(𝑤 − 𝐿)))
89	88	adantlr 728	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((𝜑 ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑤 ∈ ℝ) → (abs‘(𝐿 − 𝑤)) = (abs‘(𝑤 − 𝐿)))
90	83, 89	breqtrd 5133	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝜑 ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑤 ∈ ℝ) → 𝑥 < (abs‘(𝑤 − 𝐿)))
91	90	ex 418	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → (𝑤 ∈ ℝ → 𝑥 < (abs‘(𝑤 − 𝐿))))
92	81, 91	ralrimi 3263	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝑤 − 𝐿)))
93	92	adantlr 728	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝜑 ∧ 𝑧 ∈ 𝐴) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝑤 − 𝐿)))
94		fvoveq1 7450	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑤 = (𝐹‘𝑧) → (abs‘(𝑤 − 𝐿)) = (abs‘((𝐹‘𝑧) − 𝐿)))
95	94	breq2d 5117	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑤 = (𝐹‘𝑧) → (𝑥 < (abs‘(𝑤 − 𝐿)) ↔ 𝑥 < (abs‘((𝐹‘𝑧) − 𝐿))))
96	95	rspcv 3575	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝐹‘𝑧) ∈ ℝ → (∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝑤 − 𝐿)) → 𝑥 < (abs‘((𝐹‘𝑧) − 𝐿))))
97	78, 93, 96	sylc 66	. . . . . . . . . . . . . . . . 17 ⊢ (((𝜑 ∧ 𝑧 ∈ 𝐴) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → 𝑥 < (abs‘((𝐹‘𝑧) − 𝐿)))
98	97	adantlr 728	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ 𝑧 ∈ 𝐴) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → 𝑥 < (abs‘((𝐹‘𝑧) − 𝐿)))
99	70, 77, 98	ltnsymd 11469	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑧 ∈ 𝐴) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → ¬ (abs‘((𝐹‘𝑧) − 𝐿)) < 𝑥)
100	66, 67, 68, 99	syl21anc 851	. . . . . . . . . . . . . 14 ⊢ (((((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) ∧ 𝑧 ∈ 𝐴) ∧ (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))) → ¬ (abs‘((𝐹‘𝑧) − 𝐿)) < 𝑥)
101	63, 100	jcnd 164	. . . . . . . . . . . . 13 ⊢ (((((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) ∧ 𝑧 ∈ 𝐴) ∧ (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))) → ¬ ((𝑧 ≠ 𝐵 ∧ (abs‘(𝑧 − 𝐵)) < 𝑦) → (abs‘((𝐹‘𝑧) − 𝐿)) < 𝑥))
102	101	ex 418	. . . . . . . . . . . 12 ⊢ ((((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) ∧ 𝑧 ∈ 𝐴) → ((¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → ¬ ((𝑧 ≠ 𝐵 ∧ (abs‘(𝑧 − 𝐵)) < 𝑦) → (abs‘((𝐹‘𝑧) − 𝐿)) < 𝑥)))
103	102	reximdva 3178	. . . . . . . . . . 11 ⊢ (((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) → (∃𝑧 ∈ 𝐴 (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → ∃𝑧 ∈ 𝐴 ¬ ((𝑧 ≠ 𝐵 ∧ (abs‘(𝑧 − 𝐵)) < 𝑦) → (abs‘((𝐹‘𝑧) − 𝐿)) < 𝑥)))
104	34, 103	mpd 16	. . . . . . . . . 10 ⊢ (((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) → ∃𝑧 ∈ 𝐴 ¬ ((𝑧 ≠ 𝐵 ∧ (abs‘(𝑧 − 𝐵)) < 𝑦) → (abs‘((𝐹‘𝑧) − 𝐿)) < 𝑥))
105		rexnal 3117	. . . . . . . . . 10 ⊢ (∃𝑧 ∈ 𝐴 ¬ ((𝑧 ≠ 𝐵 ∧ (abs‘(𝑧 − 𝐵)) < 𝑦) → (abs‘((𝐹‘𝑧) − 𝐿)) < 𝑥) ↔ ¬ ∀𝑧 ∈ 𝐴 ((𝑧 ≠ 𝐵 ∧ (abs‘(𝑧 − 𝐵)) < 𝑦) → (abs‘((𝐹‘𝑧) − 𝐿)) < 𝑥))
106	104, 105	sylib 221	. . . . . . . . 9 ⊢ (((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) → ¬ ∀𝑧 ∈ 𝐴 ((𝑧 ≠ 𝐵 ∧ (abs‘(𝑧 − 𝐵)) < 𝑦) → (abs‘((𝐹‘𝑧) − 𝐿)) < 𝑥))
107	106	nrexdv 3160	. . . . . . . 8 ⊢ ((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → ¬ ∃𝑦 ∈ ℝ⁺ ∀𝑧 ∈ 𝐴 ((𝑧 ≠ 𝐵 ∧ (abs‘(𝑧 − 𝐵)) < 𝑦) → (abs‘((𝐹‘𝑧) − 𝐿)) < 𝑥))
108	107	ex 418	. . . . . . 7 ⊢ (((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) → (∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤)) → ¬ ∃𝑦 ∈ ℝ⁺ ∀𝑧 ∈ 𝐴 ((𝑧 ≠ 𝐵 ∧ (abs‘(𝑧 − 𝐵)) < 𝑦) → (abs‘((𝐹‘𝑧) − 𝐿)) < 𝑥)))
109	108	reximdva 3178	. . . . . 6 ⊢ ((𝜑 ∧ ¬ 𝐿 ∈ ℝ) → (∃𝑥 ∈ ℝ⁺ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤)) → ∃𝑥 ∈ ℝ⁺ ¬ ∃𝑦 ∈ ℝ⁺ ∀𝑧 ∈ 𝐴 ((𝑧 ≠ 𝐵 ∧ (abs‘(𝑧 − 𝐵)) < 𝑦) → (abs‘((𝐹‘𝑧) − 𝐿)) < 𝑥)))
110	8, 109	mpd 16	. . . . 5 ⊢ ((𝜑 ∧ ¬ 𝐿 ∈ ℝ) → ∃𝑥 ∈ ℝ⁺ ¬ ∃𝑦 ∈ ℝ⁺ ∀𝑧 ∈ 𝐴 ((𝑧 ≠ 𝐵 ∧ (abs‘(𝑧 − 𝐵)) < 𝑦) → (abs‘((𝐹‘𝑧) − 𝐿)) < 𝑥))
111		rexnal 3117	. . . . 5 ⊢ (∃𝑥 ∈ ℝ⁺ ¬ ∃𝑦 ∈ ℝ⁺ ∀𝑧 ∈ 𝐴 ((𝑧 ≠ 𝐵 ∧ (abs‘(𝑧 − 𝐵)) < 𝑦) → (abs‘((𝐹‘𝑧) − 𝐿)) < 𝑥) ↔ ¬ ∀𝑥 ∈ ℝ⁺ ∃𝑦 ∈ ℝ⁺ ∀𝑧 ∈ 𝐴 ((𝑧 ≠ 𝐵 ∧ (abs‘(𝑧 − 𝐵)) < 𝑦) → (abs‘((𝐹‘𝑧) − 𝐿)) < 𝑥))
112	110, 111	sylib 221	. . . 4 ⊢ ((𝜑 ∧ ¬ 𝐿 ∈ ℝ) → ¬ ∀𝑥 ∈ ℝ⁺ ∃𝑦 ∈ ℝ⁺ ∀𝑧 ∈ 𝐴 ((𝑧 ≠ 𝐵 ∧ (abs‘(𝑧 − 𝐵)) < 𝑦) → (abs‘((𝐹‘𝑧) − 𝐿)) < 𝑥))
113	112	intnand 494	. . 3 ⊢ ((𝜑 ∧ ¬ 𝐿 ∈ ℝ) → ¬ (𝐿 ∈ ℂ ∧ ∀𝑥 ∈ ℝ⁺ ∃𝑦 ∈ ℝ⁺ ∀𝑧 ∈ 𝐴 ((𝑧 ≠ 𝐵 ∧ (abs‘(𝑧 − 𝐵)) < 𝑦) → (abs‘((𝐹‘𝑧) − 𝐿)) < 𝑥)))
114	71, 86	fssd 6735	. . . . 5 ⊢ (𝜑 → 𝐹:𝐴⟶ℂ)
115	114, 11, 46	ellimc3 26211	. . . 4 ⊢ (𝜑 → (𝐿 ∈ (𝐹 lim_ℂ 𝐵) ↔ (𝐿 ∈ ℂ ∧ ∀𝑥 ∈ ℝ⁺ ∃𝑦 ∈ ℝ⁺ ∀𝑧 ∈ 𝐴 ((𝑧 ≠ 𝐵 ∧ (abs‘(𝑧 − 𝐵)) < 𝑦) → (abs‘((𝐹‘𝑧) − 𝐿)) < 𝑥))))
116	115	adantr 486	. . 3 ⊢ ((𝜑 ∧ ¬ 𝐿 ∈ ℝ) → (𝐿 ∈ (𝐹 lim_ℂ 𝐵) ↔ (𝐿 ∈ ℂ ∧ ∀𝑥 ∈ ℝ⁺ ∃𝑦 ∈ ℝ⁺ ∀𝑧 ∈ 𝐴 ((𝑧 ≠ 𝐵 ∧ (abs‘(𝑧 − 𝐵)) < 𝑦) → (abs‘((𝐹‘𝑧) − 𝐿)) < 𝑥))))
117	113, 116	mtbird 328	. 2 ⊢ ((𝜑 ∧ ¬ 𝐿 ∈ ℝ) → ¬ 𝐿 ∈ (𝐹 lim_ℂ 𝐵))
118	2, 117	condan 830	1 ⊢ (𝜑 → 𝐿 ∈ ℝ)

Colors of variables: wff setvar class

This proof depends on syntax axioms: ¬ wn 3 → wi 4 ↔ wb 209 ∧ wa 401 ∧ w3a 1103 = wceq 1569 ∈ wcel 2146 ≠ wne 2958 ∀wral 3079 ∃wrex 3089 ⊆ wss 3899 ∖ cdif 4047 {csn 4587 ∪ cuni 4869 class class class wbr 5105 ∘ ccom 5658 ⟶wf 6542 ‘cfv 6546 (class class class)co 7427 ℂcc 11208 ℝcr 11209 ℝ^*cxr 11352 < clt 11353 − cmin 11551 ℝ⁺crp 13130 abscabs 15413 TopOpenctopn 17604 ∞Metcxmet 21675 ballcbl 21677 ℂ_fldccnfld 21690 Topctop 23223 limPtclp 23464 lim_ℂ climc 26194

This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2196 ax-12 2215 ax-ext 2735 ax-rep 5234 ax-sep 5251 ax-nul 5262 ax-pow 5330 ax-pr 5394 ax-un 7758 ax-cnex 11266 ax-resscn 11267 ax-1cn 11268 ax-icn 11269 ax-addcl 11270 ax-addrcl 11271 ax-mulcl 11272 ax-mulrcl 11273 ax-mulcom 11274 ax-addass 11275 ax-mulass 11276 ax-distr 11277 ax-i2m1 11278 ax-1ne0 11279 ax-1rid 11280 ax-rnegex 11281 ax-rrecex 11282 ax-cnre 11283 ax-pre-lttri 11284 ax-pre-lttrn 11285 ax-pre-ltadd 11286 ax-pre-mulgt0 11287 ax-pre-sup 11288

This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2101 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-nel 3065 df-ral 3080 df-rex 3090 df-rmo 3368 df-reu 3369 df-rab 3416 df-v 3455 df-sbc 3742 df-csb 3851 df-ss 3900 df-pss 4016 df-dif 4049 df-in 4093 df-un 4153 df-nul 4281 df-if 4485 df-pw 4561 df-sn 4588 df-pr 4590 df-tp 4592 df-op 4838 df-uni 4870 df-int 4910 df-iun 4955 df-iin 4956 df-br 5106 df-opab 5170 df-mpt 5189 df-tr 5215 df-id 5549 df-eprel 5554 df-po 5562 df-so 5563 df-fr 5607 df-we 5609 df-xp 5660 df-rel 5661 df-cnv 5662 df-co 5663 df-dm 5664 df-rn 5665 df-res 5666 df-ima 5667 df-pred 6310 df-ord 6371 df-on 6372 df-lim 6373 df-suc 6374 df-iota 6500 df-fun 6548 df-fn 6549 df-f 6550 df-f1 6551 df-fo 6552 df-f1o 6553 df-fv 6554 df-riota 7384 df-ov 7430 df-oprab 7431 df-mpo 7432 df-om 7885 df-1st 8008 df-2nd 8009 df-frecs 8310 df-wrecs 8341 df-recs 8390 df-rdg 8429 df-1o 8487 df-er 8728 df-map 8860 df-pm 8861 df-en 8985 df-dom 8986 df-sdom 8987 df-fin 8988 df-fi 9413 df-sup 9444 df-inf 9445 df-pnf 11355 df-mnf 11356 df-xr 11357 df-ltxr 11358 df-le 11359 df-sub 11553 df-neg 11554 df-div 11984 df-nn 12346 df-2 12415 df-3 12416 df-4 12417 df-5 12418 df-6 12419 df-7 12420 df-8 12421 df-9 12422 df-n0 12617 df-z 12704 df-dec 12825 df-uz 12976 df-q 13086 df-rp 13131 df-xneg 13251 df-xadd 13252 df-xmul 13253 df-fz 13650 df-seq 14155 df-exp 14215 df-cj 15278 df-re 15279 df-im 15280 df-sqrt 15414 df-abs 15415 df-struct 17337 df-slot 17372 df-ndx 17384 df-base 17400 df-plusg 17453 df-mulr 17454 df-starv 17455 df-tset 17459 df-ple 17460 df-ds 17462 df-unif 17463 df-rest 17605 df-topn 17606 df-topgen 17626 df-psmet 21682 df-xmet 21683 df-met 21684 df-bl 21685 df-mopn 21686 df-cnfld 21691 df-top 23224 df-topon 23241 df-topsp 23263 df-bases 23276 df-cld 23349 df-ntr 23350 df-cls 23351 df-nei 23428 df-lp 23466 df-cnp 23558 df-xms 24651 df-ms 24652 df-limc 26198

This theorem is used by: cncfiooiccre 47044 fourierdlem60 47315 fourierdlem61 47316 fourierdlem74 47329 fourierdlem75 47330 fourierdlem85 47340 fourierdlem88 47343 fourierdlem95 47350 fourierdlem103 47358 fourierdlem104 47359

W3C validator