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Theorem dvcnp2 25887

Description: A function is continuous at each point for which it is differentiable. (Contributed by Mario Carneiro, 9-Aug-2014.) (Revised by Mario Carneiro, 28-Dec-2016.) Avoid ax-mulf 11118. (Revised by GG, 16-Mar-2025.)

**Hypotheses**
Ref	Expression
dvcnp.j	⊢ 𝐽 = (𝐾 ↾_t 𝐴)
dvcnp.k	⊢ 𝐾 = (TopOpen‘ℂ_fld)

**Assertion**
Ref	Expression
dvcnp2	⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵 ∈ dom (𝑆 D 𝐹)) → 𝐹 ∈ ((𝐽 CnP 𝐾)‘𝐵))

Proof of Theorem dvcnp2 Dummy variables 𝑦 𝑧 𝑥 𝑤 𝑢 𝑣 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		simpl2 1194	. . . . 5 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐹:𝐴⟶ℂ)
2	1	ffvelcdmda 7036	. . . . . . . 8 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ 𝐴) → (𝐹‘𝑧) ∈ ℂ)
3		dvcnp.k	. . . . . . . . . . . . . 14 ⊢ 𝐾 = (TopOpen‘ℂ_fld)
4	3	cnfldtop 24748	. . . . . . . . . . . . 13 ⊢ 𝐾 ∈ Top
5		simpl1 1193	. . . . . . . . . . . . . 14 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝑆 ⊆ ℂ)
6		cnex 11119	. . . . . . . . . . . . . 14 ⊢ ℂ ∈ V
7		ssexg 5264	. . . . . . . . . . . . . 14 ⊢ ((𝑆 ⊆ ℂ ∧ ℂ ∈ V) → 𝑆 ∈ V)
8	5, 6, 7	sylancl 587	. . . . . . . . . . . . 13 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝑆 ∈ V)
9		resttop 23125	. . . . . . . . . . . . 13 ⊢ ((𝐾 ∈ Top ∧ 𝑆 ∈ V) → (𝐾 ↾_t 𝑆) ∈ Top)
10	4, 8, 9	sylancr 588	. . . . . . . . . . . 12 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝐾 ↾_t 𝑆) ∈ Top)
11		simpl3 1195	. . . . . . . . . . . . 13 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐴 ⊆ 𝑆)
12	3	cnfldtopon 24747	. . . . . . . . . . . . . . 15 ⊢ 𝐾 ∈ (TopOn‘ℂ)
13		resttopon 23126	. . . . . . . . . . . . . . 15 ⊢ ((𝐾 ∈ (TopOn‘ℂ) ∧ 𝑆 ⊆ ℂ) → (𝐾 ↾_t 𝑆) ∈ (TopOn‘𝑆))
14	12, 5, 13	sylancr 588	. . . . . . . . . . . . . 14 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝐾 ↾_t 𝑆) ∈ (TopOn‘𝑆))
15		toponuni 22879	. . . . . . . . . . . . . 14 ⊢ ((𝐾 ↾_t 𝑆) ∈ (TopOn‘𝑆) → 𝑆 = ∪ (𝐾 ↾_t 𝑆))
16	14, 15	syl 17	. . . . . . . . . . . . 13 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝑆 = ∪ (𝐾 ↾_t 𝑆))
17	11, 16	sseqtrd 3958	. . . . . . . . . . . 12 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐴 ⊆ ∪ (𝐾 ↾_t 𝑆))
18		eqid 2736	. . . . . . . . . . . . 13 ⊢ ∪ (𝐾 ↾_t 𝑆) = ∪ (𝐾 ↾_t 𝑆)
19	18	ntrss2 23022	. . . . . . . . . . . 12 ⊢ (((𝐾 ↾_t 𝑆) ∈ Top ∧ 𝐴 ⊆ ∪ (𝐾 ↾_t 𝑆)) → ((int‘(𝐾 ↾_t 𝑆))‘𝐴) ⊆ 𝐴)
20	10, 17, 19	syl2anc 585	. . . . . . . . . . 11 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → ((int‘(𝐾 ↾_t 𝑆))‘𝐴) ⊆ 𝐴)
21		eqid 2736	. . . . . . . . . . . . 13 ⊢ (𝐾 ↾_t 𝑆) = (𝐾 ↾_t 𝑆)
22		eqid 2736	. . . . . . . . . . . . 13 ⊢ (𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ (((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵))) = (𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ (((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵)))
23		simp1 1137	. . . . . . . . . . . . 13 ⊢ ((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) → 𝑆 ⊆ ℂ)
24		simp2 1138	. . . . . . . . . . . . 13 ⊢ ((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) → 𝐹:𝐴⟶ℂ)
25		simp3 1139	. . . . . . . . . . . . 13 ⊢ ((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) → 𝐴 ⊆ 𝑆)
26	21, 3, 22, 23, 24, 25	eldv 25865	. . . . . . . . . . . 12 ⊢ ((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) → (𝐵(𝑆 D 𝐹)𝑦 ↔ (𝐵 ∈ ((int‘(𝐾 ↾_t 𝑆))‘𝐴) ∧ 𝑦 ∈ ((𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ (((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵))) lim_ℂ 𝐵))))
27	26	simprbda 498	. . . . . . . . . . 11 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐵 ∈ ((int‘(𝐾 ↾_t 𝑆))‘𝐴))
28	20, 27	sseldd 3922	. . . . . . . . . 10 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐵 ∈ 𝐴)
29	1, 28	ffvelcdmd 7037	. . . . . . . . 9 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝐹‘𝐵) ∈ ℂ)
30	29	adantr 480	. . . . . . . 8 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ 𝐴) → (𝐹‘𝐵) ∈ ℂ)
31	2, 30	subcld 11505	. . . . . . 7 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ 𝐴) → ((𝐹‘𝑧) − (𝐹‘𝐵)) ∈ ℂ)
32		ssidd 3945	. . . . . . 7 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → ℂ ⊆ ℂ)
33		txtopon 23556	. . . . . . . . 9 ⊢ ((𝐾 ∈ (TopOn‘ℂ) ∧ 𝐾 ∈ (TopOn‘ℂ)) → (𝐾 ×_t 𝐾) ∈ (TopOn‘(ℂ × ℂ)))
34	12, 12, 33	mp2an 693	. . . . . . . 8 ⊢ (𝐾 ×_t 𝐾) ∈ (TopOn‘(ℂ × ℂ))
35	34	toponrestid 22886	. . . . . . 7 ⊢ (𝐾 ×_t 𝐾) = ((𝐾 ×_t 𝐾) ↾_t (ℂ × ℂ))
36	11, 5	sstrd 3932	. . . . . . . . . . . . 13 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐴 ⊆ ℂ)
37		eqid 2736	. . . . . . . . . . . . . . . 16 ⊢ (𝑥 ∈ (𝐴 ∖ {𝐵}) ↦ (((𝐹‘𝑥) − (𝐹‘𝐵)) / (𝑥 − 𝐵))) = (𝑥 ∈ (𝐴 ∖ {𝐵}) ↦ (((𝐹‘𝑥) − (𝐹‘𝐵)) / (𝑥 − 𝐵)))
38	21, 3, 37, 23, 24, 25	eldv 25865	. . . . . . . . . . . . . . 15 ⊢ ((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) → (𝐵(𝑆 D 𝐹)𝑦 ↔ (𝐵 ∈ ((int‘(𝐾 ↾_t 𝑆))‘𝐴) ∧ 𝑦 ∈ ((𝑥 ∈ (𝐴 ∖ {𝐵}) ↦ (((𝐹‘𝑥) − (𝐹‘𝐵)) / (𝑥 − 𝐵))) lim_ℂ 𝐵))))
39	38	simprbda 498	. . . . . . . . . . . . . 14 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐵 ∈ ((int‘(𝐾 ↾_t 𝑆))‘𝐴))
40	20, 39	sseldd 3922	. . . . . . . . . . . . 13 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐵 ∈ 𝐴)
41	1, 36, 40	dvlem 25863	. . . . . . . . . . . 12 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → (((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵)) ∈ ℂ)
42	36	ssdifssd 4087	. . . . . . . . . . . . . 14 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝐴 ∖ {𝐵}) ⊆ ℂ)
43	42	sselda 3921	. . . . . . . . . . . . 13 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → 𝑧 ∈ ℂ)
44	36, 40	sseldd 3922	. . . . . . . . . . . . . 14 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐵 ∈ ℂ)
45	44	adantr 480	. . . . . . . . . . . . 13 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → 𝐵 ∈ ℂ)
46	43, 45	subcld 11505	. . . . . . . . . . . 12 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → (𝑧 − 𝐵) ∈ ℂ)
47	26	simplbda 499	. . . . . . . . . . . 12 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝑦 ∈ ((𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ (((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵))) lim_ℂ 𝐵))
48		limcresi 25852	. . . . . . . . . . . . . 14 ⊢ ((𝑧 ∈ 𝐴 ↦ (𝑧 − 𝐵)) lim_ℂ 𝐵) ⊆ (((𝑧 ∈ 𝐴 ↦ (𝑧 − 𝐵)) ↾ (𝐴 ∖ {𝐵})) lim_ℂ 𝐵)
49		difss 4076	. . . . . . . . . . . . . . . 16 ⊢ (𝐴 ∖ {𝐵}) ⊆ 𝐴
50		resmpt 6002	. . . . . . . . . . . . . . . 16 ⊢ ((𝐴 ∖ {𝐵}) ⊆ 𝐴 → ((𝑧 ∈ 𝐴 ↦ (𝑧 − 𝐵)) ↾ (𝐴 ∖ {𝐵})) = (𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ (𝑧 − 𝐵)))
51	49, 50	ax-mp 5	. . . . . . . . . . . . . . 15 ⊢ ((𝑧 ∈ 𝐴 ↦ (𝑧 − 𝐵)) ↾ (𝐴 ∖ {𝐵})) = (𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ (𝑧 − 𝐵))
52	51	oveq1i 7377	. . . . . . . . . . . . . 14 ⊢ (((𝑧 ∈ 𝐴 ↦ (𝑧 − 𝐵)) ↾ (𝐴 ∖ {𝐵})) lim_ℂ 𝐵) = ((𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ (𝑧 − 𝐵)) lim_ℂ 𝐵)
53	48, 52	sseqtri 3970	. . . . . . . . . . . . 13 ⊢ ((𝑧 ∈ 𝐴 ↦ (𝑧 − 𝐵)) lim_ℂ 𝐵) ⊆ ((𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ (𝑧 − 𝐵)) lim_ℂ 𝐵)
54	44	subidd 11493	. . . . . . . . . . . . . 14 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝐵 − 𝐵) = 0)
55		ssid 3944	. . . . . . . . . . . . . . . . 17 ⊢ ℂ ⊆ ℂ
56		cncfmptid 24880	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐴 ⊆ ℂ ∧ ℂ ⊆ ℂ) → (𝑧 ∈ 𝐴 ↦ 𝑧) ∈ (𝐴–cn→ℂ))
57	36, 55, 56	sylancl 587	. . . . . . . . . . . . . . . 16 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝑧 ∈ 𝐴 ↦ 𝑧) ∈ (𝐴–cn→ℂ))
58		cncfmptc 24879	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐵 ∈ ℂ ∧ 𝐴 ⊆ ℂ ∧ ℂ ⊆ ℂ) → (𝑧 ∈ 𝐴 ↦ 𝐵) ∈ (𝐴–cn→ℂ))
59	44, 36, 32, 58	syl3anc 1374	. . . . . . . . . . . . . . . 16 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝑧 ∈ 𝐴 ↦ 𝐵) ∈ (𝐴–cn→ℂ))
60	57, 59	subcncf 25412	. . . . . . . . . . . . . . 15 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝑧 ∈ 𝐴 ↦ (𝑧 − 𝐵)) ∈ (𝐴–cn→ℂ))
61		oveq1 7374	. . . . . . . . . . . . . . 15 ⊢ (𝑧 = 𝐵 → (𝑧 − 𝐵) = (𝐵 − 𝐵))
62	60, 40, 61	cnmptlimc 25857	. . . . . . . . . . . . . 14 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝐵 − 𝐵) ∈ ((𝑧 ∈ 𝐴 ↦ (𝑧 − 𝐵)) lim_ℂ 𝐵))
63	54, 62	eqeltrrd 2837	. . . . . . . . . . . . 13 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 0 ∈ ((𝑧 ∈ 𝐴 ↦ (𝑧 − 𝐵)) lim_ℂ 𝐵))
64	53, 63	sselid 3919	. . . . . . . . . . . 12 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 0 ∈ ((𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ (𝑧 − 𝐵)) lim_ℂ 𝐵))
65	3	mpomulcn 24834	. . . . . . . . . . . . 13 ⊢ (𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 · 𝑣)) ∈ ((𝐾 ×_t 𝐾) Cn 𝐾)
66	23, 24, 25	dvcl 25866	. . . . . . . . . . . . . 14 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝑦 ∈ ℂ)
67		0cn 11136	. . . . . . . . . . . . . 14 ⊢ 0 ∈ ℂ
68		opelxpi 5668	. . . . . . . . . . . . . 14 ⊢ ((𝑦 ∈ ℂ ∧ 0 ∈ ℂ) → ⟨𝑦, 0⟩ ∈ (ℂ × ℂ))
69	66, 67, 68	sylancl 587	. . . . . . . . . . . . 13 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → ⟨𝑦, 0⟩ ∈ (ℂ × ℂ))
70	34	toponunii 22881	. . . . . . . . . . . . . 14 ⊢ (ℂ × ℂ) = ∪ (𝐾 ×_t 𝐾)
71	70	cncnpi 23243	. . . . . . . . . . . . 13 ⊢ (((𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 · 𝑣)) ∈ ((𝐾 ×_t 𝐾) Cn 𝐾) ∧ ⟨𝑦, 0⟩ ∈ (ℂ × ℂ)) → (𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 · 𝑣)) ∈ (((𝐾 ×_t 𝐾) CnP 𝐾)‘⟨𝑦, 0⟩))
72	65, 69, 71	sylancr 588	. . . . . . . . . . . 12 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 · 𝑣)) ∈ (((𝐾 ×_t 𝐾) CnP 𝐾)‘⟨𝑦, 0⟩))
73	41, 46, 32, 32, 3, 35, 47, 64, 72	limccnp2 25859	. . . . . . . . . . 11 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝑦(𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 · 𝑣))0) ∈ ((𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ ((((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵))(𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 · 𝑣))(𝑧 − 𝐵))) lim_ℂ 𝐵))
74		df-mpt 5167	. . . . . . . . . . . 12 ⊢ (𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ ((((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵))(𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 · 𝑣))(𝑧 − 𝐵))) = {⟨𝑧, 𝑤⟩ ∣ (𝑧 ∈ (𝐴 ∖ {𝐵}) ∧ 𝑤 = ((((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵))(𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 · 𝑣))(𝑧 − 𝐵)))}
75	74	oveq1i 7377	. . . . . . . . . . 11 ⊢ ((𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ ((((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵))(𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 · 𝑣))(𝑧 − 𝐵))) lim_ℂ 𝐵) = ({⟨𝑧, 𝑤⟩ ∣ (𝑧 ∈ (𝐴 ∖ {𝐵}) ∧ 𝑤 = ((((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵))(𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 · 𝑣))(𝑧 − 𝐵)))} lim_ℂ 𝐵)
76	73, 75	eleqtrdi 2846	. . . . . . . . . 10 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝑦(𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 · 𝑣))0) ∈ ({⟨𝑧, 𝑤⟩ ∣ (𝑧 ∈ (𝐴 ∖ {𝐵}) ∧ 𝑤 = ((((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵))(𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 · 𝑣))(𝑧 − 𝐵)))} lim_ℂ 𝐵))
77		0cnd 11137	. . . . . . . . . . 11 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 0 ∈ ℂ)
78		ovmpot 7528	. . . . . . . . . . 11 ⊢ ((𝑦 ∈ ℂ ∧ 0 ∈ ℂ) → (𝑦(𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 · 𝑣))0) = (𝑦 · 0))
79	66, 77, 78	syl2anc 585	. . . . . . . . . 10 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝑦(𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 · 𝑣))0) = (𝑦 · 0))
80	1, 36, 28	dvlem 25863	. . . . . . . . . . . . . . . 16 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → (((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵)) ∈ ℂ)
81	36, 28	sseldd 3922	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐵 ∈ ℂ)
82	81	adantr 480	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → 𝐵 ∈ ℂ)
83	43, 82	subcld 11505	. . . . . . . . . . . . . . . 16 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → (𝑧 − 𝐵) ∈ ℂ)
84		ovmpot 7528	. . . . . . . . . . . . . . . 16 ⊢ (((((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵)) ∈ ℂ ∧ (𝑧 − 𝐵) ∈ ℂ) → ((((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵))(𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 · 𝑣))(𝑧 − 𝐵)) = ((((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵)) · (𝑧 − 𝐵)))
85	80, 83, 84	syl2anc 585	. . . . . . . . . . . . . . 15 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → ((((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵))(𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 · 𝑣))(𝑧 − 𝐵)) = ((((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵)) · (𝑧 − 𝐵)))
86	85	eqeq2d 2747	. . . . . . . . . . . . . 14 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → (𝑤 = ((((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵))(𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 · 𝑣))(𝑧 − 𝐵)) ↔ 𝑤 = ((((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵)) · (𝑧 − 𝐵))))
87	86	pm5.32da 579	. . . . . . . . . . . . 13 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → ((𝑧 ∈ (𝐴 ∖ {𝐵}) ∧ 𝑤 = ((((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵))(𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 · 𝑣))(𝑧 − 𝐵))) ↔ (𝑧 ∈ (𝐴 ∖ {𝐵}) ∧ 𝑤 = ((((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵)) · (𝑧 − 𝐵)))))
88	87	opabbidv 5151	. . . . . . . . . . . 12 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → {⟨𝑧, 𝑤⟩ ∣ (𝑧 ∈ (𝐴 ∖ {𝐵}) ∧ 𝑤 = ((((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵))(𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 · 𝑣))(𝑧 − 𝐵)))} = {⟨𝑧, 𝑤⟩ ∣ (𝑧 ∈ (𝐴 ∖ {𝐵}) ∧ 𝑤 = ((((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵)) · (𝑧 − 𝐵)))})
89		df-mpt 5167	. . . . . . . . . . . 12 ⊢ (𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ ((((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵)) · (𝑧 − 𝐵))) = {⟨𝑧, 𝑤⟩ ∣ (𝑧 ∈ (𝐴 ∖ {𝐵}) ∧ 𝑤 = ((((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵)) · (𝑧 − 𝐵)))}
90	88, 89	eqtr4di 2789	. . . . . . . . . . 11 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → {⟨𝑧, 𝑤⟩ ∣ (𝑧 ∈ (𝐴 ∖ {𝐵}) ∧ 𝑤 = ((((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵))(𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 · 𝑣))(𝑧 − 𝐵)))} = (𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ ((((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵)) · (𝑧 − 𝐵))))
91	90	oveq1d 7382	. . . . . . . . . 10 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → ({⟨𝑧, 𝑤⟩ ∣ (𝑧 ∈ (𝐴 ∖ {𝐵}) ∧ 𝑤 = ((((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵))(𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 · 𝑣))(𝑧 − 𝐵)))} lim_ℂ 𝐵) = ((𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ ((((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵)) · (𝑧 − 𝐵))) lim_ℂ 𝐵))
92	76, 79, 91	3eltr3d 2850	. . . . . . . . 9 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝑦 · 0) ∈ ((𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ ((((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵)) · (𝑧 − 𝐵))) lim_ℂ 𝐵))
93	66	mul01d 11345	. . . . . . . . 9 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝑦 · 0) = 0)
94	1	adantr 480	. . . . . . . . . . . . . 14 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → 𝐹:𝐴⟶ℂ)
95		simpr 484	. . . . . . . . . . . . . . 15 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → 𝑧 ∈ (𝐴 ∖ {𝐵}))
96	49, 95	sselid 3919	. . . . . . . . . . . . . 14 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → 𝑧 ∈ 𝐴)
97	94, 96	ffvelcdmd 7037	. . . . . . . . . . . . 13 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → (𝐹‘𝑧) ∈ ℂ)
98	29	adantr 480	. . . . . . . . . . . . 13 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → (𝐹‘𝐵) ∈ ℂ)
99	97, 98	subcld 11505	. . . . . . . . . . . 12 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → ((𝐹‘𝑧) − (𝐹‘𝐵)) ∈ ℂ)
100		eldifsni 4735	. . . . . . . . . . . . . 14 ⊢ (𝑧 ∈ (𝐴 ∖ {𝐵}) → 𝑧 ≠ 𝐵)
101	100	adantl 481	. . . . . . . . . . . . 13 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → 𝑧 ≠ 𝐵)
102	43, 82, 101	subne0d 11514	. . . . . . . . . . . 12 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → (𝑧 − 𝐵) ≠ 0)
103	99, 83, 102	divcan1d 11932	. . . . . . . . . . 11 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → ((((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵)) · (𝑧 − 𝐵)) = ((𝐹‘𝑧) − (𝐹‘𝐵)))
104	103	mpteq2dva 5178	. . . . . . . . . 10 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ ((((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵)) · (𝑧 − 𝐵))) = (𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ ((𝐹‘𝑧) − (𝐹‘𝐵))))
105	104	oveq1d 7382	. . . . . . . . 9 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → ((𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ ((((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵)) · (𝑧 − 𝐵))) lim_ℂ 𝐵) = ((𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ ((𝐹‘𝑧) − (𝐹‘𝐵))) lim_ℂ 𝐵))
106	92, 93, 105	3eltr3d 2850	. . . . . . . 8 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 0 ∈ ((𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ ((𝐹‘𝑧) − (𝐹‘𝐵))) lim_ℂ 𝐵))
107	31	fmpttd 7067	. . . . . . . . . 10 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝑧 ∈ 𝐴 ↦ ((𝐹‘𝑧) − (𝐹‘𝐵))):𝐴⟶ℂ)
108	107	limcdif 25843	. . . . . . . . 9 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → ((𝑧 ∈ 𝐴 ↦ ((𝐹‘𝑧) − (𝐹‘𝐵))) lim_ℂ 𝐵) = (((𝑧 ∈ 𝐴 ↦ ((𝐹‘𝑧) − (𝐹‘𝐵))) ↾ (𝐴 ∖ {𝐵})) lim_ℂ 𝐵))
109		resmpt 6002	. . . . . . . . . . 11 ⊢ ((𝐴 ∖ {𝐵}) ⊆ 𝐴 → ((𝑧 ∈ 𝐴 ↦ ((𝐹‘𝑧) − (𝐹‘𝐵))) ↾ (𝐴 ∖ {𝐵})) = (𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ ((𝐹‘𝑧) − (𝐹‘𝐵))))
110	49, 109	ax-mp 5	. . . . . . . . . 10 ⊢ ((𝑧 ∈ 𝐴 ↦ ((𝐹‘𝑧) − (𝐹‘𝐵))) ↾ (𝐴 ∖ {𝐵})) = (𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ ((𝐹‘𝑧) − (𝐹‘𝐵)))
111	110	oveq1i 7377	. . . . . . . . 9 ⊢ (((𝑧 ∈ 𝐴 ↦ ((𝐹‘𝑧) − (𝐹‘𝐵))) ↾ (𝐴 ∖ {𝐵})) lim_ℂ 𝐵) = ((𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ ((𝐹‘𝑧) − (𝐹‘𝐵))) lim_ℂ 𝐵)
112	108, 111	eqtrdi 2787	. . . . . . . 8 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → ((𝑧 ∈ 𝐴 ↦ ((𝐹‘𝑧) − (𝐹‘𝐵))) lim_ℂ 𝐵) = ((𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ ((𝐹‘𝑧) − (𝐹‘𝐵))) lim_ℂ 𝐵))
113	106, 112	eleqtrrd 2839	. . . . . . 7 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 0 ∈ ((𝑧 ∈ 𝐴 ↦ ((𝐹‘𝑧) − (𝐹‘𝐵))) lim_ℂ 𝐵))
114		cncfmptc 24879	. . . . . . . . 9 ⊢ (((𝐹‘𝐵) ∈ ℂ ∧ 𝐴 ⊆ ℂ ∧ ℂ ⊆ ℂ) → (𝑧 ∈ 𝐴 ↦ (𝐹‘𝐵)) ∈ (𝐴–cn→ℂ))
115	29, 36, 32, 114	syl3anc 1374	. . . . . . . 8 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝑧 ∈ 𝐴 ↦ (𝐹‘𝐵)) ∈ (𝐴–cn→ℂ))
116		eqidd 2737	. . . . . . . 8 ⊢ (𝑧 = 𝐵 → (𝐹‘𝐵) = (𝐹‘𝐵))
117	115, 28, 116	cnmptlimc 25857	. . . . . . 7 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝐹‘𝐵) ∈ ((𝑧 ∈ 𝐴 ↦ (𝐹‘𝐵)) lim_ℂ 𝐵))
118	3	addcn 24831	. . . . . . . 8 ⊢ + ∈ ((𝐾 ×_t 𝐾) Cn 𝐾)
119		opelxpi 5668	. . . . . . . . 9 ⊢ ((0 ∈ ℂ ∧ (𝐹‘𝐵) ∈ ℂ) → ⟨0, (𝐹‘𝐵)⟩ ∈ (ℂ × ℂ))
120	67, 29, 119	sylancr 588	. . . . . . . 8 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → ⟨0, (𝐹‘𝐵)⟩ ∈ (ℂ × ℂ))
121	70	cncnpi 23243	. . . . . . . 8 ⊢ (( + ∈ ((𝐾 ×_t 𝐾) Cn 𝐾) ∧ ⟨0, (𝐹‘𝐵)⟩ ∈ (ℂ × ℂ)) → + ∈ (((𝐾 ×_t 𝐾) CnP 𝐾)‘⟨0, (𝐹‘𝐵)⟩))
122	118, 120, 121	sylancr 588	. . . . . . 7 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → + ∈ (((𝐾 ×_t 𝐾) CnP 𝐾)‘⟨0, (𝐹‘𝐵)⟩))
123	31, 30, 32, 32, 3, 35, 113, 117, 122	limccnp2 25859	. . . . . 6 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (0 + (𝐹‘𝐵)) ∈ ((𝑧 ∈ 𝐴 ↦ (((𝐹‘𝑧) − (𝐹‘𝐵)) + (𝐹‘𝐵))) lim_ℂ 𝐵))
124	29	addlidd 11347	. . . . . 6 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (0 + (𝐹‘𝐵)) = (𝐹‘𝐵))
125	2, 30	npcand 11509	. . . . . . . . 9 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ 𝐴) → (((𝐹‘𝑧) − (𝐹‘𝐵)) + (𝐹‘𝐵)) = (𝐹‘𝑧))
126	125	mpteq2dva 5178	. . . . . . . 8 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝑧 ∈ 𝐴 ↦ (((𝐹‘𝑧) − (𝐹‘𝐵)) + (𝐹‘𝐵))) = (𝑧 ∈ 𝐴 ↦ (𝐹‘𝑧)))
127	1	feqmptd 6908	. . . . . . . 8 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐹 = (𝑧 ∈ 𝐴 ↦ (𝐹‘𝑧)))
128	126, 127	eqtr4d 2774	. . . . . . 7 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝑧 ∈ 𝐴 ↦ (((𝐹‘𝑧) − (𝐹‘𝐵)) + (𝐹‘𝐵))) = 𝐹)
129	128	oveq1d 7382	. . . . . 6 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → ((𝑧 ∈ 𝐴 ↦ (((𝐹‘𝑧) − (𝐹‘𝐵)) + (𝐹‘𝐵))) lim_ℂ 𝐵) = (𝐹 lim_ℂ 𝐵))
130	123, 124, 129	3eltr3d 2850	. . . . 5 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝐹‘𝐵) ∈ (𝐹 lim_ℂ 𝐵))
131		dvcnp.j	. . . . . . 7 ⊢ 𝐽 = (𝐾 ↾_t 𝐴)
132	3, 131	cnplimc 25854	. . . . . 6 ⊢ ((𝐴 ⊆ ℂ ∧ 𝐵 ∈ 𝐴) → (𝐹 ∈ ((𝐽 CnP 𝐾)‘𝐵) ↔ (𝐹:𝐴⟶ℂ ∧ (𝐹‘𝐵) ∈ (𝐹 lim_ℂ 𝐵))))
133	36, 28, 132	syl2anc 585	. . . . 5 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝐹 ∈ ((𝐽 CnP 𝐾)‘𝐵) ↔ (𝐹:𝐴⟶ℂ ∧ (𝐹‘𝐵) ∈ (𝐹 lim_ℂ 𝐵))))
134	1, 130, 133	mpbir2and 714	. . . 4 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐹 ∈ ((𝐽 CnP 𝐾)‘𝐵))
135	134	ex 412	. . 3 ⊢ ((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) → (𝐵(𝑆 D 𝐹)𝑦 → 𝐹 ∈ ((𝐽 CnP 𝐾)‘𝐵)))
136	135	exlimdv 1935	. 2 ⊢ ((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) → (∃𝑦 𝐵(𝑆 D 𝐹)𝑦 → 𝐹 ∈ ((𝐽 CnP 𝐾)‘𝐵)))
137		eldmg 5853	. . 3 ⊢ (𝐵 ∈ dom (𝑆 D 𝐹) → (𝐵 ∈ dom (𝑆 D 𝐹) ↔ ∃𝑦 𝐵(𝑆 D 𝐹)𝑦))
138	137	ibi 267	. 2 ⊢ (𝐵 ∈ dom (𝑆 D 𝐹) → ∃𝑦 𝐵(𝑆 D 𝐹)𝑦)
139	136, 138	impel 505	1 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵 ∈ dom (𝑆 D 𝐹)) → 𝐹 ∈ ((𝐽 CnP 𝐾)‘𝐵))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 ∧ w3a 1087 = wceq 1542 ∃wex 1781 ∈ wcel 2114 ≠ wne 2932 Vcvv 3429 ∖ cdif 3886 ⊆ wss 3889 {csn 4567 ⟨cop 4573 ∪ cuni 4850 class class class wbr 5085 {copab 5147 ↦ cmpt 5166 × cxp 5629 dom cdm 5631 ↾ cres 5633 ⟶wf 6494 ‘cfv 6498 (class class class)co 7367 ∈ cmpo 7369 ℂcc 11036 0cc0 11038 + caddc 11041 · cmul 11043 − cmin 11377 / cdiv 11807 ↾_t crest 17383 TopOpenctopn 17384 ℂ_fldccnfld 21352 Topctop 22858 TopOnctopon 22875 intcnt 22982 Cn ccn 23189 CnP ccnp 23190 ×_t ctx 23525 –cn→ccncf 24843 lim_ℂ climc 25829 D cdv 25830

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 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2708 ax-rep 5212 ax-sep 5231 ax-nul 5241 ax-pow 5307 ax-pr 5375 ax-un 7689 ax-cnex 11094 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-mulrcl 11101 ax-mulcom 11102 ax-addass 11103 ax-mulass 11104 ax-distr 11105 ax-i2m1 11106 ax-1ne0 11107 ax-1rid 11108 ax-rnegex 11109 ax-rrecex 11110 ax-cnre 11111 ax-pre-lttri 11112 ax-pre-lttrn 11113 ax-pre-ltadd 11114 ax-pre-mulgt0 11115 ax-pre-sup 11116 ax-addf 11117

This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-nel 3037 df-ral 3052 df-rex 3062 df-rmo 3342 df-reu 3343 df-rab 3390 df-v 3431 df-sbc 3729 df-csb 3838 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-pss 3909 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-tp 4572 df-op 4574 df-uni 4851 df-int 4890 df-iun 4935 df-iin 4936 df-br 5086 df-opab 5148 df-mpt 5167 df-tr 5193 df-id 5526 df-eprel 5531 df-po 5539 df-so 5540 df-fr 5584 df-se 5585 df-we 5586 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6265 df-ord 6326 df-on 6327 df-lim 6328 df-suc 6329 df-iota 6454 df-fun 6500 df-fn 6501 df-f 6502 df-f1 6503 df-fo 6504 df-f1o 6505 df-fv 6506 df-isom 6507 df-riota 7324 df-ov 7370 df-oprab 7371 df-mpo 7372 df-of 7631 df-om 7818 df-1st 7942 df-2nd 7943 df-supp 8111 df-frecs 8231 df-wrecs 8262 df-recs 8311 df-rdg 8349 df-1o 8405 df-2o 8406 df-er 8643 df-map 8775 df-pm 8776 df-ixp 8846 df-en 8894 df-dom 8895 df-sdom 8896 df-fin 8897 df-fsupp 9275 df-fi 9324 df-sup 9355 df-inf 9356 df-oi 9425 df-card 9863 df-pnf 11181 df-mnf 11182 df-xr 11183 df-ltxr 11184 df-le 11185 df-sub 11379 df-neg 11380 df-div 11808 df-nn 12175 df-2 12244 df-3 12245 df-4 12246 df-5 12247 df-6 12248 df-7 12249 df-8 12250 df-9 12251 df-n0 12438 df-z 12525 df-dec 12645 df-uz 12789 df-q 12899 df-rp 12943 df-xneg 13063 df-xadd 13064 df-xmul 13065 df-icc 13305 df-fz 13462 df-fzo 13609 df-seq 13964 df-exp 14024 df-hash 14293 df-cj 15061 df-re 15062 df-im 15063 df-sqrt 15197 df-abs 15198 df-struct 17117 df-sets 17134 df-slot 17152 df-ndx 17164 df-base 17180 df-ress 17201 df-plusg 17233 df-mulr 17234 df-starv 17235 df-sca 17236 df-vsca 17237 df-ip 17238 df-tset 17239 df-ple 17240 df-ds 17242 df-unif 17243 df-hom 17244 df-cco 17245 df-rest 17385 df-topn 17386 df-0g 17404 df-gsum 17405 df-topgen 17406 df-pt 17407 df-prds 17410 df-xrs 17466 df-qtop 17471 df-imas 17472 df-xps 17474 df-mre 17548 df-mrc 17549 df-acs 17551 df-mgm 18608 df-sgrp 18687 df-mnd 18703 df-submnd 18752 df-mulg 19044 df-cntz 19292 df-cmn 19757 df-psmet 21344 df-xmet 21345 df-met 21346 df-bl 21347 df-mopn 21348 df-cnfld 21353 df-top 22859 df-topon 22876 df-topsp 22898 df-bases 22911 df-ntr 22985 df-cn 23192 df-cnp 23193 df-tx 23527 df-hmeo 23720 df-xms 24285 df-ms 24286 df-tms 24287 df-cncf 24845 df-limc 25833 df-dv 25834

This theorem is referenced by: dvcn 25888 dvmulbr 25906 dvcobr 25913 fouriersw 46659

W3C validator