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Theorem dvcnp2 25836

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 11210. (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 1190	. . . . 5 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐹:𝐴⟶ℂ)
2	1	ffvelcdmda 7088	. . . . . . . 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 24687	. . . . . . . . . . . . 13 ⊢ 𝐾 ∈ Top
5		simpl1 1189	. . . . . . . . . . . . . 14 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝑆 ⊆ ℂ)
6		cnex 11211	. . . . . . . . . . . . . 14 ⊢ ℂ ∈ V
7		ssexg 5317	. . . . . . . . . . . . . 14 ⊢ ((𝑆 ⊆ ℂ ∧ ℂ ∈ V) → 𝑆 ∈ V)
8	5, 6, 7	sylancl 585	. . . . . . . . . . . . 13 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝑆 ∈ V)
9		resttop 23051	. . . . . . . . . . . . 13 ⊢ ((𝐾 ∈ Top ∧ 𝑆 ∈ V) → (𝐾 ↾_t 𝑆) ∈ Top)
10	4, 8, 9	sylancr 586	. . . . . . . . . . . 12 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝐾 ↾_t 𝑆) ∈ Top)
11		simpl3 1191	. . . . . . . . . . . . 13 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐴 ⊆ 𝑆)
12	3	cnfldtopon 24686	. . . . . . . . . . . . . . 15 ⊢ 𝐾 ∈ (TopOn‘ℂ)
13		resttopon 23052	. . . . . . . . . . . . . . 15 ⊢ ((𝐾 ∈ (TopOn‘ℂ) ∧ 𝑆 ⊆ ℂ) → (𝐾 ↾_t 𝑆) ∈ (TopOn‘𝑆))
14	12, 5, 13	sylancr 586	. . . . . . . . . . . . . 14 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝐾 ↾_t 𝑆) ∈ (TopOn‘𝑆))
15		toponuni 22803	. . . . . . . . . . . . . 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 4018	. . . . . . . . . . . 12 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐴 ⊆ ∪ (𝐾 ↾_t 𝑆))
18		eqid 2727	. . . . . . . . . . . . 13 ⊢ ∪ (𝐾 ↾_t 𝑆) = ∪ (𝐾 ↾_t 𝑆)
19	18	ntrss2 22948	. . . . . . . . . . . 12 ⊢ (((𝐾 ↾_t 𝑆) ∈ Top ∧ 𝐴 ⊆ ∪ (𝐾 ↾_t 𝑆)) → ((int‘(𝐾 ↾_t 𝑆))‘𝐴) ⊆ 𝐴)
20	10, 17, 19	syl2anc 583	. . . . . . . . . . 11 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → ((int‘(𝐾 ↾_t 𝑆))‘𝐴) ⊆ 𝐴)
21		eqid 2727	. . . . . . . . . . . . 13 ⊢ (𝐾 ↾_t 𝑆) = (𝐾 ↾_t 𝑆)
22		eqid 2727	. . . . . . . . . . . . 13 ⊢ (𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ (((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵))) = (𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ (((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵)))
23		simp1 1134	. . . . . . . . . . . . 13 ⊢ ((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) → 𝑆 ⊆ ℂ)
24		simp2 1135	. . . . . . . . . . . . 13 ⊢ ((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) → 𝐹:𝐴⟶ℂ)
25		simp3 1136	. . . . . . . . . . . . 13 ⊢ ((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) → 𝐴 ⊆ 𝑆)
26	21, 3, 22, 23, 24, 25	eldv 25814	. . . . . . . . . . . 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 3979	. . . . . . . . . 10 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐵 ∈ 𝐴)
29	1, 28	ffvelcdmd 7089	. . . . . . . . 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 11593	. . . . . . 7 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ 𝐴) → ((𝐹‘𝑧) − (𝐹‘𝐵)) ∈ ℂ)
32		ssidd 4001	. . . . . . 7 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → ℂ ⊆ ℂ)
33		txtopon 23482	. . . . . . . . 9 ⊢ ((𝐾 ∈ (TopOn‘ℂ) ∧ 𝐾 ∈ (TopOn‘ℂ)) → (𝐾 ×_t 𝐾) ∈ (TopOn‘(ℂ × ℂ)))
34	12, 12, 33	mp2an 691	. . . . . . . 8 ⊢ (𝐾 ×_t 𝐾) ∈ (TopOn‘(ℂ × ℂ))
35	34	toponrestid 22810	. . . . . . 7 ⊢ (𝐾 ×_t 𝐾) = ((𝐾 ×_t 𝐾) ↾_t (ℂ × ℂ))
36	11, 5	sstrd 3988	. . . . . . . . . . . . 13 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐴 ⊆ ℂ)
37		eqid 2727	. . . . . . . . . . . . . . . 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 25814	. . . . . . . . . . . . . . 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 3979	. . . . . . . . . . . . 13 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐵 ∈ 𝐴)
41	1, 36, 40	dvlem 25812	. . . . . . . . . . . 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 4138	. . . . . . . . . . . . . 14 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝐴 ∖ {𝐵}) ⊆ ℂ)
43	42	sselda 3978	. . . . . . . . . . . . 13 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → 𝑧 ∈ ℂ)
44	36, 40	sseldd 3979	. . . . . . . . . . . . . 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 11593	. . . . . . . . . . . 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 25801	. . . . . . . . . . . . . 14 ⊢ ((𝑧 ∈ 𝐴 ↦ (𝑧 − 𝐵)) lim_ℂ 𝐵) ⊆ (((𝑧 ∈ 𝐴 ↦ (𝑧 − 𝐵)) ↾ (𝐴 ∖ {𝐵})) lim_ℂ 𝐵)
49		difss 4127	. . . . . . . . . . . . . . . 16 ⊢ (𝐴 ∖ {𝐵}) ⊆ 𝐴
50		resmpt 6035	. . . . . . . . . . . . . . . 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 7424	. . . . . . . . . . . . . 14 ⊢ (((𝑧 ∈ 𝐴 ↦ (𝑧 − 𝐵)) ↾ (𝐴 ∖ {𝐵})) lim_ℂ 𝐵) = ((𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ (𝑧 − 𝐵)) lim_ℂ 𝐵)
53	48, 52	sseqtri 4014	. . . . . . . . . . . . 13 ⊢ ((𝑧 ∈ 𝐴 ↦ (𝑧 − 𝐵)) lim_ℂ 𝐵) ⊆ ((𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ (𝑧 − 𝐵)) lim_ℂ 𝐵)
54	44	subidd 11581	. . . . . . . . . . . . . 14 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝐵 − 𝐵) = 0)
55		ssid 4000	. . . . . . . . . . . . . . . . 17 ⊢ ℂ ⊆ ℂ
56		cncfmptid 24820	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐴 ⊆ ℂ ∧ ℂ ⊆ ℂ) → (𝑧 ∈ 𝐴 ↦ 𝑧) ∈ (𝐴–cn→ℂ))
57	36, 55, 56	sylancl 585	. . . . . . . . . . . . . . . 16 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝑧 ∈ 𝐴 ↦ 𝑧) ∈ (𝐴–cn→ℂ))
58		cncfmptc 24819	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐵 ∈ ℂ ∧ 𝐴 ⊆ ℂ ∧ ℂ ⊆ ℂ) → (𝑧 ∈ 𝐴 ↦ 𝐵) ∈ (𝐴–cn→ℂ))
59	44, 36, 32, 58	syl3anc 1369	. . . . . . . . . . . . . . . 16 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝑧 ∈ 𝐴 ↦ 𝐵) ∈ (𝐴–cn→ℂ))
60	57, 59	subcncf 25360	. . . . . . . . . . . . . . 15 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝑧 ∈ 𝐴 ↦ (𝑧 − 𝐵)) ∈ (𝐴–cn→ℂ))
61		oveq1 7421	. . . . . . . . . . . . . . 15 ⊢ (𝑧 = 𝐵 → (𝑧 − 𝐵) = (𝐵 − 𝐵))
62	60, 40, 61	cnmptlimc 25806	. . . . . . . . . . . . . 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 2829	. . . . . . . . . . . . 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 3976	. . . . . . . . . . . 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 24772	. . . . . . . . . . . . 13 ⊢ (𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 · 𝑣)) ∈ ((𝐾 ×_t 𝐾) Cn 𝐾)
66	23, 24, 25	dvcl 25815	. . . . . . . . . . . . . 14 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝑦 ∈ ℂ)
67		0cn 11228	. . . . . . . . . . . . . 14 ⊢ 0 ∈ ℂ
68		opelxpi 5709	. . . . . . . . . . . . . 14 ⊢ ((𝑦 ∈ ℂ ∧ 0 ∈ ℂ) → ⟨𝑦, 0⟩ ∈ (ℂ × ℂ))
69	66, 67, 68	sylancl 585	. . . . . . . . . . . . 13 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → ⟨𝑦, 0⟩ ∈ (ℂ × ℂ))
70	34	toponunii 22805	. . . . . . . . . . . . . 14 ⊢ (ℂ × ℂ) = ∪ (𝐾 ×_t 𝐾)
71	70	cncnpi 23169	. . . . . . . . . . . . 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 586	. . . . . . . . . . . 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 25808	. . . . . . . . . . 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 5226	. . . . . . . . . . . 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 7424	. . . . . . . . . . 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 2838	. . . . . . . . . 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 11229	. . . . . . . . . . 11 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 0 ∈ ℂ)
78		ovmpot 7576	. . . . . . . . . . 11 ⊢ ((𝑦 ∈ ℂ ∧ 0 ∈ ℂ) → (𝑦(𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 · 𝑣))0) = (𝑦 · 0))
79	66, 77, 78	syl2anc 583	. . . . . . . . . 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 25812	. . . . . . . . . . . . . . . 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 3979	. . . . . . . . . . . . . . . . . 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 11593	. . . . . . . . . . . . . . . 16 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → (𝑧 − 𝐵) ∈ ℂ)
84		ovmpot 7576	. . . . . . . . . . . . . . . 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 583	. . . . . . . . . . . . . . 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 2738	. . . . . . . . . . . . . 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 578	. . . . . . . . . . . . 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 5208	. . . . . . . . . . . 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 5226	. . . . . . . . . . . 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 2785	. . . . . . . . . . 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 7429	. . . . . . . . . 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 2842	. . . . . . . . 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 11435	. . . . . . . . 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 3976	. . . . . . . . . . . . . 14 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → 𝑧 ∈ 𝐴)
97	94, 96	ffvelcdmd 7089	. . . . . . . . . . . . 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 11593	. . . . . . . . . . . 12 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → ((𝐹‘𝑧) − (𝐹‘𝐵)) ∈ ℂ)
100		eldifsni 4789	. . . . . . . . . . . . . 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 11602	. . . . . . . . . . . 12 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → (𝑧 − 𝐵) ≠ 0)
103	99, 83, 102	divcan1d 12013	. . . . . . . . . . 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 5242	. . . . . . . . . 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 7429	. . . . . . . . 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 2842	. . . . . . . 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 7119	. . . . . . . . . 10 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝑧 ∈ 𝐴 ↦ ((𝐹‘𝑧) − (𝐹‘𝐵))):𝐴⟶ℂ)
108	107	limcdif 25792	. . . . . . . . 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 6035	. . . . . . . . . . 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 7424	. . . . . . . . 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 2783	. . . . . . . 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 2831	. . . . . . 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 24819	. . . . . . . . 9 ⊢ (((𝐹‘𝐵) ∈ ℂ ∧ 𝐴 ⊆ ℂ ∧ ℂ ⊆ ℂ) → (𝑧 ∈ 𝐴 ↦ (𝐹‘𝐵)) ∈ (𝐴–cn→ℂ))
115	29, 36, 32, 114	syl3anc 1369	. . . . . . . 8 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝑧 ∈ 𝐴 ↦ (𝐹‘𝐵)) ∈ (𝐴–cn→ℂ))
116		eqidd 2728	. . . . . . . 8 ⊢ (𝑧 = 𝐵 → (𝐹‘𝐵) = (𝐹‘𝐵))
117	115, 28, 116	cnmptlimc 25806	. . . . . . 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 24768	. . . . . . . 8 ⊢ + ∈ ((𝐾 ×_t 𝐾) Cn 𝐾)
119		opelxpi 5709	. . . . . . . . 9 ⊢ ((0 ∈ ℂ ∧ (𝐹‘𝐵) ∈ ℂ) → ⟨0, (𝐹‘𝐵)⟩ ∈ (ℂ × ℂ))
120	67, 29, 119	sylancr 586	. . . . . . . 8 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → ⟨0, (𝐹‘𝐵)⟩ ∈ (ℂ × ℂ))
121	70	cncnpi 23169	. . . . . . . 8 ⊢ (( + ∈ ((𝐾 ×_t 𝐾) Cn 𝐾) ∧ ⟨0, (𝐹‘𝐵)⟩ ∈ (ℂ × ℂ)) → + ∈ (((𝐾 ×_t 𝐾) CnP 𝐾)‘⟨0, (𝐹‘𝐵)⟩))
122	118, 120, 121	sylancr 586	. . . . . . 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 25808	. . . . . 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 11437	. . . . . 6 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (0 + (𝐹‘𝐵)) = (𝐹‘𝐵))
125	2, 30	npcand 11597	. . . . . . . . 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 5242	. . . . . . . 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 6961	. . . . . . . 8 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐹 = (𝑧 ∈ 𝐴 ↦ (𝐹‘𝑧)))
128	126, 127	eqtr4d 2770	. . . . . . 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 7429	. . . . . 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 2842	. . . . 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 25803	. . . . . 6 ⊢ ((𝐴 ⊆ ℂ ∧ 𝐵 ∈ 𝐴) → (𝐹 ∈ ((𝐽 CnP 𝐾)‘𝐵) ↔ (𝐹:𝐴⟶ℂ ∧ (𝐹‘𝐵) ∈ (𝐹 lim_ℂ 𝐵))))
133	36, 28, 132	syl2anc 583	. . . . 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 712	. . . 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 1929	. 2 ⊢ ((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) → (∃𝑦 𝐵(𝑆 D 𝐹)𝑦 → 𝐹 ∈ ((𝐽 CnP 𝐾)‘𝐵)))
137		eldmg 5895	. . 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 205 ∧ wa 395 ∧ w3a 1085 = wceq 1534 ∃wex 1774 ∈ wcel 2099 ≠ wne 2935 Vcvv 3469 ∖ cdif 3941 ⊆ wss 3944 {csn 4624 ⟨cop 4630 ∪ cuni 4903 class class class wbr 5142 {copab 5204 ↦ cmpt 5225 × cxp 5670 dom cdm 5672 ↾ cres 5674 ⟶wf 6538 ‘cfv 6542 (class class class)co 7414 ∈ cmpo 7416 ℂcc 11128 0cc0 11130 + caddc 11133 · cmul 11135 − cmin 11466 / cdiv 11893 ↾_t crest 17393 TopOpenctopn 17394 ℂ_fldccnfld 21266 Topctop 22782 TopOnctopon 22799 intcnt 22908 Cn ccn 23115 CnP ccnp 23116 ×_t ctx 23451 –cn→ccncf 24783 lim_ℂ climc 25778 D cdv 25779

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1790 ax-4 1804 ax-5 1906 ax-6 1964 ax-7 2004 ax-8 2101 ax-9 2109 ax-10 2130 ax-11 2147 ax-12 2164 ax-ext 2698 ax-rep 5279 ax-sep 5293 ax-nul 5300 ax-pow 5359 ax-pr 5423 ax-un 7734 ax-cnex 11186 ax-resscn 11187 ax-1cn 11188 ax-icn 11189 ax-addcl 11190 ax-addrcl 11191 ax-mulcl 11192 ax-mulrcl 11193 ax-mulcom 11194 ax-addass 11195 ax-mulass 11196 ax-distr 11197 ax-i2m1 11198 ax-1ne0 11199 ax-1rid 11200 ax-rnegex 11201 ax-rrecex 11202 ax-cnre 11203 ax-pre-lttri 11204 ax-pre-lttrn 11205 ax-pre-ltadd 11206 ax-pre-mulgt0 11207 ax-pre-sup 11208 ax-addf 11209

This theorem depends on definitions: df-bi 206 df-an 396 df-or 847 df-3or 1086 df-3an 1087 df-tru 1537 df-fal 1547 df-ex 1775 df-nf 1779 df-sb 2061 df-mo 2529 df-eu 2558 df-clab 2705 df-cleq 2719 df-clel 2805 df-nfc 2880 df-ne 2936 df-nel 3042 df-ral 3057 df-rex 3066 df-rmo 3371 df-reu 3372 df-rab 3428 df-v 3471 df-sbc 3775 df-csb 3890 df-dif 3947 df-un 3949 df-in 3951 df-ss 3961 df-pss 3963 df-nul 4319 df-if 4525 df-pw 4600 df-sn 4625 df-pr 4627 df-tp 4629 df-op 4631 df-uni 4904 df-int 4945 df-iun 4993 df-iin 4994 df-br 5143 df-opab 5205 df-mpt 5226 df-tr 5260 df-id 5570 df-eprel 5576 df-po 5584 df-so 5585 df-fr 5627 df-se 5628 df-we 5629 df-xp 5678 df-rel 5679 df-cnv 5680 df-co 5681 df-dm 5682 df-rn 5683 df-res 5684 df-ima 5685 df-pred 6299 df-ord 6366 df-on 6367 df-lim 6368 df-suc 6369 df-iota 6494 df-fun 6544 df-fn 6545 df-f 6546 df-f1 6547 df-fo 6548 df-f1o 6549 df-fv 6550 df-isom 6551 df-riota 7370 df-ov 7417 df-oprab 7418 df-mpo 7419 df-of 7679 df-om 7865 df-1st 7987 df-2nd 7988 df-supp 8160 df-frecs 8280 df-wrecs 8311 df-recs 8385 df-rdg 8424 df-1o 8480 df-2o 8481 df-er 8718 df-map 8838 df-pm 8839 df-ixp 8908 df-en 8956 df-dom 8957 df-sdom 8958 df-fin 8959 df-fsupp 9378 df-fi 9426 df-sup 9457 df-inf 9458 df-oi 9525 df-card 9954 df-pnf 11272 df-mnf 11273 df-xr 11274 df-ltxr 11275 df-le 11276 df-sub 11468 df-neg 11469 df-div 11894 df-nn 12235 df-2 12297 df-3 12298 df-4 12299 df-5 12300 df-6 12301 df-7 12302 df-8 12303 df-9 12304 df-n0 12495 df-z 12581 df-dec 12700 df-uz 12845 df-q 12955 df-rp 12999 df-xneg 13116 df-xadd 13117 df-xmul 13118 df-icc 13355 df-fz 13509 df-fzo 13652 df-seq 13991 df-exp 14051 df-hash 14314 df-cj 15070 df-re 15071 df-im 15072 df-sqrt 15206 df-abs 15207 df-struct 17107 df-sets 17124 df-slot 17142 df-ndx 17154 df-base 17172 df-ress 17201 df-plusg 17237 df-mulr 17238 df-starv 17239 df-sca 17240 df-vsca 17241 df-ip 17242 df-tset 17243 df-ple 17244 df-ds 17246 df-unif 17247 df-hom 17248 df-cco 17249 df-rest 17395 df-topn 17396 df-0g 17414 df-gsum 17415 df-topgen 17416 df-pt 17417 df-prds 17420 df-xrs 17475 df-qtop 17480 df-imas 17481 df-xps 17483 df-mre 17557 df-mrc 17558 df-acs 17560 df-mgm 18591 df-sgrp 18670 df-mnd 18686 df-submnd 18732 df-mulg 19015 df-cntz 19259 df-cmn 19728 df-psmet 21258 df-xmet 21259 df-met 21260 df-bl 21261 df-mopn 21262 df-cnfld 21267 df-top 22783 df-topon 22800 df-topsp 22822 df-bases 22836 df-ntr 22911 df-cn 23118 df-cnp 23119 df-tx 23453 df-hmeo 23646 df-xms 24213 df-ms 24214 df-tms 24215 df-cncf 24785 df-limc 25782 df-dv 25783

This theorem is referenced by: dvcn 25838 dvmulbr 25856 dvmulbrOLD 25857 dvcobr 25864 dvcobrOLD 25865 fouriersw 45542

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