limcrecl - Mathbox for Glauco Siliprandi

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Theorem limcrecl 45550

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 480	. 2 ⊢ ((𝜑 ∧ ¬ 𝐿 ∈ ℝ) → 𝐿 ∈ (𝐹 lim_ℂ 𝐵))
3		limccl 25930	. . . . . . . . . 10 ⊢ (𝐹 lim_ℂ 𝐵) ⊆ ℂ
4	3, 1	sselid 4006	. . . . . . . . 9 ⊢ (𝜑 → 𝐿 ∈ ℂ)
5	4	adantr 480	. . . . . . . 8 ⊢ ((𝜑 ∧ ¬ 𝐿 ∈ ℝ) → 𝐿 ∈ ℂ)
6		simpr 484	. . . . . . . 8 ⊢ ((𝜑 ∧ ¬ 𝐿 ∈ ℝ) → ¬ 𝐿 ∈ ℝ)
7	5, 6	eldifd 3987	. . . . . . 7 ⊢ ((𝜑 ∧ ¬ 𝐿 ∈ ℝ) → 𝐿 ∈ (ℂ ∖ ℝ))
8	7	dstregt0 45196	. . . . . 6 ⊢ ((𝜑 ∧ ¬ 𝐿 ∈ ℝ) → ∃𝑥 ∈ ℝ⁺ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤)))
9		cnxmet 24814	. . . . . . . . . . . . . 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 731	. . . . . . . . . . . . . 14 ⊢ (((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) → 𝐴 ⊆ ℂ)
13	12	ssdifssd 4170	. . . . . . . . . . . . 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 2740	. . . . . . . . . . . . . . . . . 18 ⊢ (TopOpen‘ℂ_fld) = (TopOpen‘ℂ_fld)
16	15	cnfldtop 24825	. . . . . . . . . . . . . . . . 17 ⊢ (TopOpen‘ℂ_fld) ∈ Top
17	16	a1i 11	. . . . . . . . . . . . . . . 16 ⊢ (𝜑 → (TopOpen‘ℂ_fld) ∈ Top)
18		unicntop 24827	. . . . . . . . . . . . . . . . 17 ⊢ ℂ = ∪ (TopOpen‘ℂ_fld)
19	11, 18	sseqtrdi 4059	. . . . . . . . . . . . . . . 16 ⊢ (𝜑 → 𝐴 ⊆ ∪ (TopOpen‘ℂ_fld))
20		eqid 2740	. . . . . . . . . . . . . . . . 17 ⊢ ∪ (TopOpen‘ℂ_fld) = ∪ (TopOpen‘ℂ_fld)
21	20	lpdifsn 23172	. . . . . . . . . . . . . . . 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 583	. . . . . . . . . . . . . . 15 ⊢ (𝜑 → (𝐵 ∈ ((limPt‘(TopOpen‘ℂ_fld))‘𝐴) ↔ 𝐵 ∈ ((limPt‘(TopOpen‘ℂ_fld))‘(𝐴 ∖ {𝐵}))))
23	14, 22	mpbid 232	. . . . . . . . . . . . . 14 ⊢ (𝜑 → 𝐵 ∈ ((limPt‘(TopOpen‘ℂ_fld))‘(𝐴 ∖ {𝐵})))
24	23	ad4antr 731	. . . . . . . . . . . . 13 ⊢ (((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) → 𝐵 ∈ ((limPt‘(TopOpen‘ℂ_fld))‘(𝐴 ∖ {𝐵})))
25		simpr 484	. . . . . . . . . . . . 13 ⊢ (((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) → 𝑦 ∈ ℝ⁺)
26	15	cnfldtopn 24823	. . . . . . . . . . . . . 14 ⊢ (TopOpen‘ℂ_fld) = (MetOpen‘(abs ∘ − ))
27	26	lpbl 24537	. . . . . . . . . . . . 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 1373	. . . . . . . . . . . 12 ⊢ (((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) → ∃𝑧 ∈ (𝐴 ∖ {𝐵})𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))
29		eldif 3986	. . . . . . . . . . . . . . 15 ⊢ (𝑧 ∈ (𝐴 ∖ {𝐵}) ↔ (𝑧 ∈ 𝐴 ∧ ¬ 𝑧 ∈ {𝐵}))
30	29	anbi1i 623	. . . . . . . . . . . . . 14 ⊢ ((𝑧 ∈ (𝐴 ∖ {𝐵}) ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) ↔ ((𝑧 ∈ 𝐴 ∧ ¬ 𝑧 ∈ {𝐵}) ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)))
31		anass 468	. . . . . . . . . . . . . 14 ⊢ (((𝑧 ∈ 𝐴 ∧ ¬ 𝑧 ∈ {𝐵}) ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) ↔ (𝑧 ∈ 𝐴 ∧ (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))))
32	30, 31	bitri 275	. . . . . . . . . . . . 13 ⊢ ((𝑧 ∈ (𝐴 ∖ {𝐵}) ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) ↔ (𝑧 ∈ 𝐴 ∧ (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))))
33	32	rexbii2 3096	. . . . . . . . . . . 12 ⊢ (∃𝑧 ∈ (𝐴 ∖ {𝐵})𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦) ↔ ∃𝑧 ∈ 𝐴 (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)))
34	28, 33	sylib 218	. . . . . . . . . . 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 770	. . . . . . . . . . . . . . . . 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 4664	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑧 ∈ {𝐵} ↔ 𝑧 = 𝐵)
37	36	necon3bbii 2994	. . . . . . . . . . . . . . . . 17 ⊢ (¬ 𝑧 ∈ {𝐵} ↔ 𝑧 ≠ 𝐵)
38	35, 37	sylib 218	. . . . . . . . . . . . . . . 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 784	. . . . . . . . . . . . . . . . 17 ⊢ ((((((𝜑 ∧ ¬ 𝐿 ∈ ℝ) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑦 ∈ ℝ⁺) ∧ (¬ 𝑧 ∈ {𝐵} ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦))) → 𝜑)
40		simplr 768	. . . . . . . . . . . . . . . . 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 772	. . . . . . . . . . . . . . . . 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 1138	. . . . . . . . . . . . . . . . . . . . 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 23171	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (((TopOpen‘ℂ_fld) ∈ Top ∧ 𝐴 ⊆ ℂ) → ((limPt‘(TopOpen‘ℂ_fld))‘𝐴) ⊆ ℂ)
45	17, 11, 44	syl2anc 583	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (𝜑 → ((limPt‘(TopOpen‘ℂ_fld))‘𝐴) ⊆ ℂ)
46	45, 14	sseldd 4009	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝜑 → 𝐵 ∈ ℂ)
47	46	3ad2ant1 1133	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → 𝐵 ∈ ℂ)
48		rpxr 13066	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝑦 ∈ ℝ⁺ → 𝑦 ∈ ℝ^*)
49	48	3ad2ant2 1134	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → 𝑦 ∈ ℝ^*)
50		elbl 24419	. . . . . . . . . . . . . . . . . . . . . 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 1371	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → (𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦) ↔ (𝑧 ∈ ℂ ∧ (𝐵(abs ∘ − )𝑧) < 𝑦)))
52	42, 51	mpbid 232	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → (𝑧 ∈ ℂ ∧ (𝐵(abs ∘ − )𝑧) < 𝑦))
53	52	simpld 494	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → 𝑧 ∈ ℂ)
54	53, 47	abssubd 15502	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → (abs‘(𝑧 − 𝐵)) = (abs‘(𝐵 − 𝑧)))
55		eqid 2740	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (abs ∘ − ) = (abs ∘ − )
56	55	cnmetdval 24812	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝐵 ∈ ℂ ∧ 𝑧 ∈ ℂ) → (𝐵(abs ∘ − )𝑧) = (abs‘(𝐵 − 𝑧)))
57	47, 53, 56	syl2anc 583	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → (𝐵(abs ∘ − )𝑧) = (abs‘(𝐵 − 𝑧)))
58	52	simprd 495	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → (𝐵(abs ∘ − )𝑧) < 𝑦)
59	57, 58	eqbrtrrd 5190	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → (abs‘(𝐵 − 𝑧)) < 𝑦)
60	54, 59	eqbrtrd 5188	. . . . . . . . . . . . . . . . 17 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ⁺ ∧ 𝑧 ∈ (𝐵(ball‘(abs ∘ − ))𝑦)) → (abs‘(𝑧 − 𝐵)) < 𝑦)
61	39, 40, 41, 60	syl3anc 1371	. . . . . . . . . . . . . . . 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 511	. . . . . . . . . . . . . . 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 714	. . . . . . . . . . . . . 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 714	. . . . . . . . . . . . . . . 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 768	. . . . . . . . . . . . . . . 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 511	. . . . . . . . . . . . . . 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 785	. . . . . . . . . . . . . . 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 783	. . . . . . . . . . . . . . 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 13065	. . . . . . . . . . . . . . . . 17 ⊢ (𝑥 ∈ ℝ⁺ → 𝑥 ∈ ℝ)
70	69	ad2antlr 726	. . . . . . . . . . . . . . . 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 7118	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ 𝑧 ∈ 𝐴) → (𝐹‘𝑧) ∈ ℝ)
73	72	recnd 11318	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ 𝑧 ∈ 𝐴) → (𝐹‘𝑧) ∈ ℂ)
74	73	ad2antrr 725	. . . . . . . . . . . . . . . . . 18 ⊢ ((((𝜑 ∧ 𝑧 ∈ 𝐴) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → (𝐹‘𝑧) ∈ ℂ)
75	4	ad3antrrr 729	. . . . . . . . . . . . . . . . . 18 ⊢ ((((𝜑 ∧ 𝑧 ∈ 𝐴) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → 𝐿 ∈ ℂ)
76	74, 75	subcld 11647	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝜑 ∧ 𝑧 ∈ 𝐴) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → ((𝐹‘𝑧) − 𝐿) ∈ ℂ)
77	76	abscld 15485	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ 𝑧 ∈ 𝐴) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → (abs‘((𝐹‘𝑧) − 𝐿)) ∈ ℝ)
78	72	adantr 480	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝜑 ∧ 𝑧 ∈ 𝐴) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → (𝐹‘𝑧) ∈ ℝ)
79		nfv 1913	. . . . . . . . . . . . . . . . . . . . 21 ⊢ Ⅎ𝑤𝜑
80		nfra1 3290	. . . . . . . . . . . . . . . . . . . . 21 ⊢ Ⅎ𝑤∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))
81	79, 80	nfan 1898	. . . . . . . . . . . . . . . . . . . 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 713	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((𝜑 ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑤 ∈ ℝ) → 𝑥 < (abs‘(𝐿 − 𝑤)))
84	4	adantr 480	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝜑 ∧ 𝑤 ∈ ℝ) → 𝐿 ∈ ℂ)
85		ax-resscn 11241	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ ℝ ⊆ ℂ
86	85	a1i 11	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (𝜑 → ℝ ⊆ ℂ)
87	86	sselda 4008	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝜑 ∧ 𝑤 ∈ ℝ) → 𝑤 ∈ ℂ)
88	84, 87	abssubd 15502	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((𝜑 ∧ 𝑤 ∈ ℝ) → (abs‘(𝐿 − 𝑤)) = (abs‘(𝑤 − 𝐿)))
89	88	adantlr 714	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((𝜑 ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑤 ∈ ℝ) → (abs‘(𝐿 − 𝑤)) = (abs‘(𝑤 − 𝐿)))
90	83, 89	breqtrd 5192	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝜑 ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) ∧ 𝑤 ∈ ℝ) → 𝑥 < (abs‘(𝑤 − 𝐿)))
91	90	ex 412	. . . . . . . . . . . . . . . . . . . 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 714	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝜑 ∧ 𝑧 ∈ 𝐴) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝑤 − 𝐿)))
94		fvoveq1 7471	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑤 = (𝐹‘𝑧) → (abs‘(𝑤 − 𝐿)) = (abs‘((𝐹‘𝑧) − 𝐿)))
95	94	breq2d 5178	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑤 = (𝐹‘𝑧) → (𝑥 < (abs‘(𝑤 − 𝐿)) ↔ 𝑥 < (abs‘((𝐹‘𝑧) − 𝐿))))
96	95	rspcv 3631	. . . . . . . . . . . . . . . . . 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 714	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ 𝑧 ∈ 𝐴) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → 𝑥 < (abs‘((𝐹‘𝑧) − 𝐿)))
99	70, 77, 98	ltnsymd 11439	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑧 ∈ 𝐴) ∧ 𝑥 ∈ ℝ⁺) ∧ ∀𝑤 ∈ ℝ 𝑥 < (abs‘(𝐿 − 𝑤))) → ¬ (abs‘((𝐹‘𝑧) − 𝐿)) < 𝑥)
100	66, 67, 68, 99	syl21anc 837	. . . . . . . . . . . . . 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 412	. . . . . . . . . . . 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 3174	. . . . . . . . . . 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 3106	. . . . . . . . . 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 218	. . . . . . . . 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 3155	. . . . . . . 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 412	. . . . . . 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 3174	. . . . . 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 3106	. . . . 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 218	. . . 4 ⊢ ((𝜑 ∧ ¬ 𝐿 ∈ ℝ) → ¬ ∀𝑥 ∈ ℝ⁺ ∃𝑦 ∈ ℝ⁺ ∀𝑧 ∈ 𝐴 ((𝑧 ≠ 𝐵 ∧ (abs‘(𝑧 − 𝐵)) < 𝑦) → (abs‘((𝐹‘𝑧) − 𝐿)) < 𝑥))
113	112	intnand 488	. . 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 6764	. . . . 5 ⊢ (𝜑 → 𝐹:𝐴⟶ℂ)
115	114, 11, 46	ellimc3 25934	. . . 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 480	. . 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 325	. 2 ⊢ ((𝜑 ∧ ¬ 𝐿 ∈ ℝ) → ¬ 𝐿 ∈ (𝐹 lim_ℂ 𝐵))
118	2, 117	condan 817	1 ⊢ (𝜑 → 𝐿 ∈ ℝ)

Colors of variables: wff setvar class

Syntax hints: ¬ wn 3 → wi 4 ↔ wb 206 ∧ wa 395 ∧ w3a 1087 = wceq 1537 ∈ wcel 2108 ≠ wne 2946 ∀wral 3067 ∃wrex 3076 ∖ cdif 3973 ⊆ wss 3976 {csn 4648 ∪ cuni 4931 class class class wbr 5166 ∘ ccom 5704 ⟶wf 6569 ‘cfv 6573 (class class class)co 7448 ℂcc 11182 ℝcr 11183 ℝ^*cxr 11323 < clt 11324 − cmin 11520 ℝ⁺crp 13057 abscabs 15283 TopOpenctopn 17481 ∞Metcxmet 21372 ballcbl 21374 ℂ_fldccnfld 21387 Topctop 22920 limPtclp 23163 lim_ℂ climc 25917

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1793 ax-4 1807 ax-5 1909 ax-6 1967 ax-7 2007 ax-8 2110 ax-9 2118 ax-10 2141 ax-11 2158 ax-12 2178 ax-ext 2711 ax-rep 5303 ax-sep 5317 ax-nul 5324 ax-pow 5383 ax-pr 5447 ax-un 7770 ax-cnex 11240 ax-resscn 11241 ax-1cn 11242 ax-icn 11243 ax-addcl 11244 ax-addrcl 11245 ax-mulcl 11246 ax-mulrcl 11247 ax-mulcom 11248 ax-addass 11249 ax-mulass 11250 ax-distr 11251 ax-i2m1 11252 ax-1ne0 11253 ax-1rid 11254 ax-rnegex 11255 ax-rrecex 11256 ax-cnre 11257 ax-pre-lttri 11258 ax-pre-lttrn 11259 ax-pre-ltadd 11260 ax-pre-mulgt0 11261 ax-pre-sup 11262

This theorem depends on definitions: df-bi 207 df-an 396 df-or 847 df-3or 1088 df-3an 1089 df-tru 1540 df-fal 1550 df-ex 1778 df-nf 1782 df-sb 2065 df-mo 2543 df-eu 2572 df-clab 2718 df-cleq 2732 df-clel 2819 df-nfc 2895 df-ne 2947 df-nel 3053 df-ral 3068 df-rex 3077 df-rmo 3388 df-reu 3389 df-rab 3444 df-v 3490 df-sbc 3805 df-csb 3922 df-dif 3979 df-un 3981 df-in 3983 df-ss 3993 df-pss 3996 df-nul 4353 df-if 4549 df-pw 4624 df-sn 4649 df-pr 4651 df-tp 4653 df-op 4655 df-uni 4932 df-int 4971 df-iun 5017 df-iin 5018 df-br 5167 df-opab 5229 df-mpt 5250 df-tr 5284 df-id 5593 df-eprel 5599 df-po 5607 df-so 5608 df-fr 5652 df-we 5654 df-xp 5706 df-rel 5707 df-cnv 5708 df-co 5709 df-dm 5710 df-rn 5711 df-res 5712 df-ima 5713 df-pred 6332 df-ord 6398 df-on 6399 df-lim 6400 df-suc 6401 df-iota 6525 df-fun 6575 df-fn 6576 df-f 6577 df-f1 6578 df-fo 6579 df-f1o 6580 df-fv 6581 df-riota 7404 df-ov 7451 df-oprab 7452 df-mpo 7453 df-om 7904 df-1st 8030 df-2nd 8031 df-frecs 8322 df-wrecs 8353 df-recs 8427 df-rdg 8466 df-1o 8522 df-er 8763 df-map 8886 df-pm 8887 df-en 9004 df-dom 9005 df-sdom 9006 df-fin 9007 df-fi 9480 df-sup 9511 df-inf 9512 df-pnf 11326 df-mnf 11327 df-xr 11328 df-ltxr 11329 df-le 11330 df-sub 11522 df-neg 11523 df-div 11948 df-nn 12294 df-2 12356 df-3 12357 df-4 12358 df-5 12359 df-6 12360 df-7 12361 df-8 12362 df-9 12363 df-n0 12554 df-z 12640 df-dec 12759 df-uz 12904 df-q 13014 df-rp 13058 df-xneg 13175 df-xadd 13176 df-xmul 13177 df-fz 13568 df-seq 14053 df-exp 14113 df-cj 15148 df-re 15149 df-im 15150 df-sqrt 15284 df-abs 15285 df-struct 17194 df-slot 17229 df-ndx 17241 df-base 17259 df-plusg 17324 df-mulr 17325 df-starv 17326 df-tset 17330 df-ple 17331 df-ds 17333 df-unif 17334 df-rest 17482 df-topn 17483 df-topgen 17503 df-psmet 21379 df-xmet 21380 df-met 21381 df-bl 21382 df-mopn 21383 df-cnfld 21388 df-top 22921 df-topon 22938 df-topsp 22960 df-bases 22974 df-cld 23048 df-ntr 23049 df-cls 23050 df-nei 23127 df-lp 23165 df-cnp 23257 df-xms 24351 df-ms 24352 df-limc 25921

This theorem is referenced by: cncfiooiccre 45816 fourierdlem60 46087 fourierdlem61 46088 fourierdlem74 46101 fourierdlem75 46102 fourierdlem85 46112 fourierdlem88 46115 fourierdlem95 46122 fourierdlem103 46130 fourierdlem104 46131

W3C validator