limcrecl - Mathbox for Glauco Siliprandi

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Theorem limcrecl 46205

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 484	. 2 ⊢ ((𝜑 ∧ ¬ 𝐿 ∈ ℝ) → 𝐿 ∈ (𝐹 lim_ℂ 𝐵))
3		limccl 25937	. . . . . . . . . 10 ⊢ (𝐹 lim_ℂ 𝐵) ⊆ ℂ
4	3, 1	sselid 3934	. . . . . . . . 9 ⊢ (𝜑 → 𝐿 ∈ ℂ)
5	4	adantr 484	. . . . . . . 8 ⊢ ((𝜑 ∧ ¬ 𝐿 ∈ ℝ) → 𝐿 ∈ ℂ)
6		simpr 488	. . . . . . . 8 ⊢ ((𝜑 ∧ ¬ 𝐿 ∈ ℝ) → ¬ 𝐿 ∈ ℝ)
7	5, 6	eldifd 3915	. . . . . . 7 ⊢ ((𝜑 ∧ ¬ 𝐿 ∈ ℝ) → 𝐿 ∈ (ℂ ∖ ℝ))
8	7	dstregt0 45861	. . . . . 6 ⊢ ((𝜑 ∧ ¬ 𝐿 ∈ ℝ) → ∃𝑥 ∈ ℝ⁺ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤)))
9		cnxmet 24832	. . . . . . . . . . . . . 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 742	. . . . . . . . . . . . . 14 ⊢ (((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) → 𝐴 ⊆ ℂ)
13	12	ssdifssd 4100	. . . . . . . . . . . . 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 2762	. . . . . . . . . . . . . . . . . 18 ⊢ (TopOpen‘ℂ_fld) = (TopOpen‘ℂ_fld)
16	15	cnfldtop 24843	. . . . . . . . . . . . . . . . 17 ⊢ (TopOpen‘ℂ_fld) ∈ Top
17	16	a1i 11	. . . . . . . . . . . . . . . 16 ⊢ (𝜑 → (TopOpen‘ℂ_fld) ∈ Top)
18		unicntop 24845	. . . . . . . . . . . . . . . . 17 ⊢ ℂ = ∪ (TopOpen‘ℂ_fld)
19	11, 18	sseqtrdi 3976	. . . . . . . . . . . . . . . 16 ⊢ (𝜑 → 𝐴 ⊆ ∪ (TopOpen‘ℂ_fld))
20		eqid 2762	. . . . . . . . . . . . . . . . 17 ⊢ ∪ (TopOpen‘ℂ_fld) = ∪ (TopOpen‘ℂ_fld)
21	20	lpdifsn 23203	. . . . . . . . . . . . . . . 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 593	. . . . . . . . . . . . . . 15 ⊢ (𝜑 → (𝐵 ∈ ((limPt‘(TopOpen‘ℂ_fld))‘𝐴) ↔ 𝐵 ∈ ((limPt‘(TopOpen‘ℂ_fld))‘(𝐴 ∖ {𝐵}))))
23	14, 22	mpbid 234	. . . . . . . . . . . . . 14 ⊢ (𝜑 → 𝐵 ∈ ((limPt‘(TopOpen‘ℂ_fld))‘(𝐴 ∖ {𝐵})))
24	23	ad4antr 742	. . . . . . . . . . . . 13 ⊢ (((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) → 𝐵 ∈ ((limPt‘(TopOpen‘ℂ_fld))‘(𝐴 ∖ {𝐵})))
25		simpr 488	. . . . . . . . . . . . 13 ⊢ (((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) → 𝑦 ∈ ℝ⁺)
26	15	cnfldtopn 24841	. . . . . . . . . . . . . 14 ⊢ (TopOpen‘ℂ_fld) = (MetOpen‘(abs ∘ − ))
27	26	lpbl 24563	. . . . . . . . . . . . 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 1392	. . . . . . . . . . . 12 ⊢ (((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) → ∃𝑧 ∈ (𝐴 ∖ {𝐵})𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))
29		eldif 3914	. . . . . . . . . . . . . . 15 ⊢ (𝑧 ∈ (𝐴 ∖ {𝐵}) ↔ (𝑧 ∈ 𝐴 ∧ ¬ 𝑧 ∈ {𝐵}))
30	29	anbi1i 633	. . . . . . . . . . . . . 14 ⊢ ((𝑧 ∈ (𝐴 ∖ {𝐵}) ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) ↔ ((𝑧 ∈ 𝐴 ∧ ¬ 𝑧 ∈ {𝐵}) ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)))
31		anass 472	. . . . . . . . . . . . . 14 ⊢ (((𝑧 ∈ 𝐴 ∧ ¬ 𝑧 ∈ {𝐵}) ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) ↔ (𝑧 ∈ 𝐴 ∧ (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))))
32	30, 31	bitri 277	. . . . . . . . . . . . 13 ⊢ ((𝑧 ∈ (𝐴 ∖ {𝐵}) ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) ↔ (𝑧 ∈ 𝐴 ∧ (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))))
33	32	rexbii2 3105	. . . . . . . . . . . 12 ⊢ (∃𝑧 ∈ (𝐴 ∖ {𝐵})𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦) ↔ ∃𝑧 ∈ 𝐴 (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)))
34	28, 33	sylib 220	. . . . . . . . . . 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 780	. . . . . . . . . . . . . . . . 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 4598	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑧 ∈ {𝐵} ↔ 𝑧 = 𝐵)
37	36	necon3bbii 3004	. . . . . . . . . . . . . . . . 17 ⊢ (¬ 𝑧 ∈ {𝐵} ↔ 𝑧 ≠ 𝐵)
38	35, 37	sylib 220	. . . . . . . . . . . . . . . 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 794	. . . . . . . . . . . . . . . . 17 ⊢ ((((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) ∧ (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))) → 𝜑)
40		simplr 778	. . . . . . . . . . . . . . . . 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 782	. . . . . . . . . . . . . . . . 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 1151	. . . . . . . . . . . . . . . . . . . . 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 23202	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (((TopOpen‘ℂ_fld) ∈ Top ∧ 𝐴 ⊆ ℂ) → ((limPt‘(TopOpen‘ℂ_fld))‘𝐴) ⊆ ℂ)
45	17, 11, 44	syl2anc 593	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (𝜑 → ((limPt‘(TopOpen‘ℂ_fld))‘𝐴) ⊆ ℂ)
46	45, 14	sseldd 3937	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝜑 → 𝐵 ∈ ℂ)
47	46	3ad2ant1 1146	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → 𝐵 ∈ ℂ)
48		rpxr 13003	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝑦 ∈ ℝ⁺ → 𝑦 ∈ ℝ^*)
49	48	3ad2ant2 1147	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → 𝑦 ∈ ℝ^*)
50		elbl 24448	. . . . . . . . . . . . . . . . . . . . . 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 1390	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → (𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦) ↔ (𝑧 ∈ ℂ ∧ (𝐵(abs ∘ − )𝑧) < 𝑦)))
52	42, 51	mpbid 234	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → (𝑧 ∈ ℂ ∧ (𝐵(abs ∘ − )𝑧) < 𝑦))
53	52	simpld 498	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → 𝑧 ∈ ℂ)
54	53, 47	abssubd 15483	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → (abs‘(𝑧 − 𝐵)) = (abs‘(𝐵 − 𝑧)))
55		eqid 2762	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (abs ∘ − ) = (abs ∘ − )
56	55	cnmetdval 24830	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝐵 ∈ ℂ ∧ 𝑧 ∈ ℂ) → (𝐵(abs ∘ − )𝑧) = (abs‘(𝐵 − 𝑧)))
57	47, 53, 56	syl2anc 593	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → (𝐵(abs ∘ − )𝑧) = (abs‘(𝐵 − 𝑧)))
58	52	simprd 499	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → (𝐵(abs ∘ − )𝑧) < 𝑦)
59	57, 58	eqbrtrrd 5124	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → (abs‘(𝐵 − 𝑧)) < 𝑦)
60	54, 59	eqbrtrd 5122	. . . . . . . . . . . . . . . . 17 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → (abs‘(𝑧 − 𝐵)) < 𝑦)
61	39, 40, 41, 60	syl3anc 1390	. . . . . . . . . . . . . . . 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 519	. . . . . . . . . . . . . . 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 725	. . . . . . . . . . . . . 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 725	. . . . . . . . . . . . . . . 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 778	. . . . . . . . . . . . . . . 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 519	. . . . . . . . . . . . . . 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 795	. . . . . . . . . . . . . . 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 793	. . . . . . . . . . . . . . 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 13002	. . . . . . . . . . . . . . . . 17 ⊢ (𝑥 ∈ ℝ⁺ → 𝑥 ∈ ℝ)
70	69	ad2antlr 737	. . . . . . . . . . . . . . . 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 7065	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ 𝑧 ∈ 𝐴) → (𝐹‘𝑧) ∈ ℝ)
73	72	recnd 11210	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ 𝑧 ∈ 𝐴) → (𝐹‘𝑧) ∈ ℂ)
74	73	ad2antrr 736	. . . . . . . . . . . . . . . . . 18 ⊢ ((((𝜑 ∧ 𝑧 ∈ 𝐴) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → (𝐹‘𝑧) ∈ ℂ)
75	4	ad3antrrr 740	. . . . . . . . . . . . . . . . . 18 ⊢ ((((𝜑 ∧ 𝑧 ∈ 𝐴) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → 𝐿 ∈ ℂ)
76	74, 75	subcld 11542	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝜑 ∧ 𝑧 ∈ 𝐴) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → ((𝐹‘𝑧) − 𝐿) ∈ ℂ)
77	76	abscld 15466	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ 𝑧 ∈ 𝐴) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → (abs‘((𝐹‘𝑧) − 𝐿)) ∈ ℝ)
78	72	adantr 484	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝜑 ∧ 𝑧 ∈ 𝐴) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → (𝐹‘𝑧) ∈ ℝ)
79		nfv 1934	. . . . . . . . . . . . . . . . . . . . 21 ⊢ Ⅎ𝑤𝜑
80		nfra1 3286	. . . . . . . . . . . . . . . . . . . . 21 ⊢ Ⅎ𝑤∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))
81	79, 80	nfan 1919	. . . . . . . . . . . . . . . . . . . 20 ⊢ Ⅎ𝑤(𝜑 ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤)))
82		rspa 3251	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤)) ∧ 𝑤 ∈ ℝ) → 𝑥 < (abs‘(𝐿 − 𝑤)))
83	82	adantll 724	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((𝜑 ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑤 ∈ ℝ) → 𝑥 < (abs‘(𝐿 − 𝑤)))
84	4	adantr 484	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝜑 ∧ 𝑤 ∈ ℝ) → 𝐿 ∈ ℂ)
85		ax-resscn 11130	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ ℝ ⊆ ℂ
86	85	a1i 11	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (𝜑 → ℝ ⊆ ℂ)
87	86	sselda 3936	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝜑 ∧ 𝑤 ∈ ℝ) → 𝑤 ∈ ℂ)
88	84, 87	abssubd 15483	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((𝜑 ∧ 𝑤 ∈ ℝ) → (abs‘(𝐿 − 𝑤)) = (abs‘(𝑤 − 𝐿)))
89	88	adantlr 725	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((𝜑 ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑤 ∈ ℝ) → (abs‘(𝐿 − 𝑤)) = (abs‘(𝑤 − 𝐿)))
90	83, 89	breqtrd 5126	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝜑 ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑤 ∈ ℝ) → 𝑥 < (abs‘(𝑤 − 𝐿)))
91	90	ex 416	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → (𝑤 ∈ ℝ → 𝑥 < (abs‘(𝑤 − 𝐿))))
92	81, 91	ralrimi 3260	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝑤 − 𝐿)))
93	92	adantlr 725	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝜑 ∧ 𝑧 ∈ 𝐴) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝑤 − 𝐿)))
94		fvoveq1 7419	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑤 = (𝐹‘𝑧) → (abs‘(𝑤 − 𝐿)) = (abs‘((𝐹‘𝑧) − 𝐿)))
95	94	breq2d 5112	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑤 = (𝐹‘𝑧) → (𝑥 < (abs‘(𝑤 − 𝐿)) ↔ 𝑥 < (abs‘((𝐹‘𝑧) − 𝐿))))
96	95	rspcv 3577	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝐹‘𝑧) ∈ ℝ → (∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝑤 − 𝐿)) → 𝑥 < (abs‘((𝐹‘𝑧) − 𝐿))))
97	78, 93, 96	sylc 65	. . . . . . . . . . . . . . . . 17 ⊢ (((𝜑 ∧ 𝑧 ∈ 𝐴) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → 𝑥 < (abs‘((𝐹‘𝑧) − 𝐿)))
98	97	adantlr 725	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ 𝑧 ∈ 𝐴) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → 𝑥 < (abs‘((𝐹‘𝑧) − 𝐿)))
99	70, 77, 98	ltnsymd 11332	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑧 ∈ 𝐴) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → ¬ (abs‘((𝐹‘𝑧) − 𝐿)) < 𝑥)
100	66, 67, 68, 99	syl21anc 848	. . . . . . . . . . . . . 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 163	. . . . . . . . . . . . 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 416	. . . . . . . . . . . 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 3175	. . . . . . . . . . 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 15	. . . . . . . . . 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 3114	. . . . . . . . . 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 220	. . . . . . . . 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 3157	. . . . . . . 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 416	. . . . . . 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 3175	. . . . . 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 15	. . . . 5 ⊢ ((𝜑 ∧ ¬ 𝐿 ∈ ℝ) → ∃𝑥 ∈ ℝ⁺ ¬ ∃𝑦 ∈ ℝ⁺ ∀𝑧 ∈ 𝐴 ((𝑧 ≠ 𝐵 ∧ (abs‘(𝑧 − 𝐵)) < 𝑦) → (abs‘((𝐹‘𝑧) − 𝐿)) < 𝑥))
111		rexnal 3114	. . . . 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 220	. . . 4 ⊢ ((𝜑 ∧ ¬ 𝐿 ∈ ℝ) → ¬ ∀𝑥 ∈ ℝ⁺ ∃𝑦 ∈ ℝ⁺ ∀𝑧 ∈ 𝐴 ((𝑧 ≠ 𝐵 ∧ (abs‘(𝑧 − 𝐵)) < 𝑦) → (abs‘((𝐹‘𝑧) − 𝐿)) < 𝑥))
113	112	intnand 492	. . 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 6709	. . . . 5 ⊢ (𝜑 → 𝐹:𝐴⟶ℂ)
115	114, 11, 46	ellimc3 25941	. . . 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 484	. . 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 327	. 2 ⊢ ((𝜑 ∧ ¬ 𝐿 ∈ ℝ) → ¬ 𝐿 ∈ (𝐹 lim_ℂ 𝐵))
118	2, 117	condan 827	1 ⊢ (𝜑 → 𝐿 ∈ ℝ)

Colors of variables: wff setvar class

Syntax hints: ¬ wn 3 → wi 4 ↔ wb 208 ∧ wa 399 ∧ w3a 1098 = wceq 1560 ∈ wcel 2142 ≠ wne 2957 ∀wral 3076 ∃wrex 3086 ∖ cdif 3901 ⊆ wss 3904 {csn 4582 ∪ cuni 4865 class class class wbr 5100 ∘ ccom 5651 ⟶wf 6517 ‘cfv 6521 (class class class)co 7396 ℂcc 11071 ℝcr 11072 ℝ^*cxr 11215 < clt 11216 − cmin 11414 ℝ⁺crp 12993 abscabs 15261 TopOpenctopn 17450 ∞Metcxmet 21409 ballcbl 21411 ℂ_fldccnfld 21424 Topctop 22953 limPtclp 23194 lim_ℂ climc 25924

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1815 ax-4 1829 ax-5 1930 ax-6 1987 ax-7 2028 ax-8 2144 ax-9 2152 ax-10 2175 ax-11 2191 ax-12 2212 ax-ext 2734 ax-rep 5227 ax-sep 5246 ax-nul 5256 ax-pow 5322 ax-pr 5390 ax-un 7718 ax-cnex 11129 ax-resscn 11130 ax-1cn 11131 ax-icn 11132 ax-addcl 11133 ax-addrcl 11134 ax-mulcl 11135 ax-mulrcl 11136 ax-mulcom 11137 ax-addass 11138 ax-mulass 11139 ax-distr 11140 ax-i2m1 11141 ax-1ne0 11142 ax-1rid 11143 ax-rnegex 11144 ax-rrecex 11145 ax-cnre 11146 ax-pre-lttri 11147 ax-pre-lttrn 11148 ax-pre-ltadd 11149 ax-pre-mulgt0 11150 ax-pre-sup 11151

This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1099 df-3an 1100 df-tru 1563 df-fal 1573 df-ex 1800 df-nf 1804 df-sb 2091 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3367 df-reu 3368 df-rab 3415 df-v 3456 df-sbc 3745 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-pss 3924 df-nul 4286 df-if 4481 df-pw 4557 df-sn 4583 df-pr 4585 df-tp 4587 df-op 4589 df-uni 4866 df-int 4906 df-iun 4951 df-iin 4952 df-br 5101 df-opab 5163 df-mpt 5182 df-tr 5208 df-id 5542 df-eprel 5547 df-po 5555 df-so 5556 df-fr 5600 df-we 5602 df-xp 5653 df-rel 5654 df-cnv 5655 df-co 5656 df-dm 5657 df-rn 5658 df-res 5659 df-ima 5660 df-pred 6288 df-ord 6349 df-on 6350 df-lim 6351 df-suc 6352 df-iota 6477 df-fun 6523 df-fn 6524 df-f 6525 df-f1 6526 df-fo 6527 df-f1o 6528 df-fv 6529 df-riota 7353 df-ov 7399 df-oprab 7400 df-mpo 7401 df-om 7847 df-1st 7970 df-2nd 7971 df-frecs 8262 df-wrecs 8293 df-recs 8342 df-rdg 8381 df-1o 8437 df-er 8678 df-map 8810 df-pm 8811 df-en 8928 df-dom 8929 df-sdom 8930 df-fin 8931 df-fi 9357 df-sup 9388 df-inf 9389 df-pnf 11218 df-mnf 11219 df-xr 11220 df-ltxr 11221 df-le 11222 df-sub 11416 df-neg 11417 df-div 11845 df-nn 12211 df-2 12280 df-3 12281 df-4 12282 df-5 12283 df-6 12284 df-7 12285 df-8 12286 df-9 12287 df-n0 12482 df-z 12569 df-dec 12689 df-uz 12840 df-q 12950 df-rp 12994 df-xneg 13114 df-xadd 13115 df-xmul 13116 df-fz 13513 df-seq 14015 df-exp 14075 df-cj 15126 df-re 15127 df-im 15128 df-sqrt 15262 df-abs 15263 df-struct 17183 df-slot 17218 df-ndx 17230 df-base 17246 df-plusg 17299 df-mulr 17300 df-starv 17301 df-tset 17305 df-ple 17306 df-ds 17308 df-unif 17309 df-rest 17451 df-topn 17452 df-topgen 17472 df-psmet 21416 df-xmet 21417 df-met 21418 df-bl 21419 df-mopn 21420 df-cnfld 21425 df-top 22954 df-topon 22971 df-topsp 22993 df-bases 23006 df-cld 23079 df-ntr 23080 df-cls 23081 df-nei 23158 df-lp 23196 df-cnp 23288 df-xms 24380 df-ms 24381 df-limc 25928

This theorem is referenced by: cncfiooiccre 46469 fourierdlem60 46740 fourierdlem61 46741 fourierdlem74 46754 fourierdlem75 46755 fourierdlem85 46765 fourierdlem88 46768 fourierdlem95 46775 fourierdlem103 46783 fourierdlem104 46784

W3C validator