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Theorem dvcnp2 25975

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 11264. (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 1192	. . . . 5 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐹:𝐴⟶ℂ)
2	1	ffvelcdmda 7118	. . . . . . . 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 24825	. . . . . . . . . . . . 13 ⊢ 𝐾 ∈ Top
5		simpl1 1191	. . . . . . . . . . . . . 14 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝑆 ⊆ ℂ)
6		cnex 11265	. . . . . . . . . . . . . 14 ⊢ ℂ ∈ V
7		ssexg 5341	. . . . . . . . . . . . . 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 23189	. . . . . . . . . . . . 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 1193	. . . . . . . . . . . . 13 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐴 ⊆ 𝑆)
12	3	cnfldtopon 24824	. . . . . . . . . . . . . . 15 ⊢ 𝐾 ∈ (TopOn‘ℂ)
13		resttopon 23190	. . . . . . . . . . . . . . 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 22941	. . . . . . . . . . . . . 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 4049	. . . . . . . . . . . 12 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐴 ⊆ ∪ (𝐾 ↾_t 𝑆))
18		eqid 2740	. . . . . . . . . . . . 13 ⊢ ∪ (𝐾 ↾_t 𝑆) = ∪ (𝐾 ↾_t 𝑆)
19	18	ntrss2 23086	. . . . . . . . . . . 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 2740	. . . . . . . . . . . . 13 ⊢ (𝐾 ↾_t 𝑆) = (𝐾 ↾_t 𝑆)
22		eqid 2740	. . . . . . . . . . . . 13 ⊢ (𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ (((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵))) = (𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ (((𝐹‘𝑧) − (𝐹‘𝐵)) / (𝑧 − 𝐵)))
23		simp1 1136	. . . . . . . . . . . . 13 ⊢ ((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) → 𝑆 ⊆ ℂ)
24		simp2 1137	. . . . . . . . . . . . 13 ⊢ ((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) → 𝐹:𝐴⟶ℂ)
25		simp3 1138	. . . . . . . . . . . . 13 ⊢ ((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) → 𝐴 ⊆ 𝑆)
26	21, 3, 22, 23, 24, 25	eldv 25953	. . . . . . . . . . . 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 4009	. . . . . . . . . 10 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐵 ∈ 𝐴)
29	1, 28	ffvelcdmd 7119	. . . . . . . . 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 11647	. . . . . . 7 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ 𝐴) → ((𝐹‘𝑧) − (𝐹‘𝐵)) ∈ ℂ)
32		ssidd 4032	. . . . . . 7 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → ℂ ⊆ ℂ)
33		txtopon 23620	. . . . . . . . 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 22948	. . . . . . 7 ⊢ (𝐾 ×_t 𝐾) = ((𝐾 ×_t 𝐾) ↾_t (ℂ × ℂ))
36	11, 5	sstrd 4019	. . . . . . . . . . . . 13 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐴 ⊆ ℂ)
37		eqid 2740	. . . . . . . . . . . . . . . 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 25953	. . . . . . . . . . . . . . 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 4009	. . . . . . . . . . . . 13 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐵 ∈ 𝐴)
41	1, 36, 40	dvlem 25951	. . . . . . . . . . . 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 4170	. . . . . . . . . . . . . 14 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝐴 ∖ {𝐵}) ⊆ ℂ)
43	42	sselda 4008	. . . . . . . . . . . . 13 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → 𝑧 ∈ ℂ)
44	36, 40	sseldd 4009	. . . . . . . . . . . . . 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 11647	. . . . . . . . . . . 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 25940	. . . . . . . . . . . . . 14 ⊢ ((𝑧 ∈ 𝐴 ↦ (𝑧 − 𝐵)) lim_ℂ 𝐵) ⊆ (((𝑧 ∈ 𝐴 ↦ (𝑧 − 𝐵)) ↾ (𝐴 ∖ {𝐵})) lim_ℂ 𝐵)
49		difss 4159	. . . . . . . . . . . . . . . 16 ⊢ (𝐴 ∖ {𝐵}) ⊆ 𝐴
50		resmpt 6066	. . . . . . . . . . . . . . . 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 7458	. . . . . . . . . . . . . 14 ⊢ (((𝑧 ∈ 𝐴 ↦ (𝑧 − 𝐵)) ↾ (𝐴 ∖ {𝐵})) lim_ℂ 𝐵) = ((𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ (𝑧 − 𝐵)) lim_ℂ 𝐵)
53	48, 52	sseqtri 4045	. . . . . . . . . . . . 13 ⊢ ((𝑧 ∈ 𝐴 ↦ (𝑧 − 𝐵)) lim_ℂ 𝐵) ⊆ ((𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ (𝑧 − 𝐵)) lim_ℂ 𝐵)
54	44	subidd 11635	. . . . . . . . . . . . . 14 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝐵 − 𝐵) = 0)
55		ssid 4031	. . . . . . . . . . . . . . . . 17 ⊢ ℂ ⊆ ℂ
56		cncfmptid 24958	. . . . . . . . . . . . . . . . 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 24957	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐵 ∈ ℂ ∧ 𝐴 ⊆ ℂ ∧ ℂ ⊆ ℂ) → (𝑧 ∈ 𝐴 ↦ 𝐵) ∈ (𝐴–cn→ℂ))
59	44, 36, 32, 58	syl3anc 1371	. . . . . . . . . . . . . . . 16 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝑧 ∈ 𝐴 ↦ 𝐵) ∈ (𝐴–cn→ℂ))
60	57, 59	subcncf 25498	. . . . . . . . . . . . . . 15 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝑧 ∈ 𝐴 ↦ (𝑧 − 𝐵)) ∈ (𝐴–cn→ℂ))
61		oveq1 7455	. . . . . . . . . . . . . . 15 ⊢ (𝑧 = 𝐵 → (𝑧 − 𝐵) = (𝐵 − 𝐵))
62	60, 40, 61	cnmptlimc 25945	. . . . . . . . . . . . . 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 2845	. . . . . . . . . . . . 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 4006	. . . . . . . . . . . 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 24910	. . . . . . . . . . . . 13 ⊢ (𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 · 𝑣)) ∈ ((𝐾 ×_t 𝐾) Cn 𝐾)
66	23, 24, 25	dvcl 25954	. . . . . . . . . . . . . 14 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝑦 ∈ ℂ)
67		0cn 11282	. . . . . . . . . . . . . 14 ⊢ 0 ∈ ℂ
68		opelxpi 5737	. . . . . . . . . . . . . 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 22943	. . . . . . . . . . . . . 14 ⊢ (ℂ × ℂ) = ∪ (𝐾 ×_t 𝐾)
71	70	cncnpi 23307	. . . . . . . . . . . . 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 25947	. . . . . . . . . . 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 5250	. . . . . . . . . . . 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 7458	. . . . . . . . . . 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 2854	. . . . . . . . . 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 11283	. . . . . . . . . . 11 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 0 ∈ ℂ)
78		ovmpot 7611	. . . . . . . . . . 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 25951	. . . . . . . . . . . . . . . 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 4009	. . . . . . . . . . . . . . . . . 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 11647	. . . . . . . . . . . . . . . 16 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → (𝑧 − 𝐵) ∈ ℂ)
84		ovmpot 7611	. . . . . . . . . . . . . . . 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 2751	. . . . . . . . . . . . . 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 5232	. . . . . . . . . . . 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 5250	. . . . . . . . . . . 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 2798	. . . . . . . . . . 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 7463	. . . . . . . . . 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 2858	. . . . . . . . 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 11489	. . . . . . . . 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 4006	. . . . . . . . . . . . . 14 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → 𝑧 ∈ 𝐴)
97	94, 96	ffvelcdmd 7119	. . . . . . . . . . . . 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 11647	. . . . . . . . . . . 12 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → ((𝐹‘𝑧) − (𝐹‘𝐵)) ∈ ℂ)
100		eldifsni 4815	. . . . . . . . . . . . . 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 11656	. . . . . . . . . . . 12 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → (𝑧 − 𝐵) ≠ 0)
103	99, 83, 102	divcan1d 12071	. . . . . . . . . . 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 5266	. . . . . . . . . 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 7463	. . . . . . . . 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 2858	. . . . . . . 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 7149	. . . . . . . . . 10 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝑧 ∈ 𝐴 ↦ ((𝐹‘𝑧) − (𝐹‘𝐵))):𝐴⟶ℂ)
108	107	limcdif 25931	. . . . . . . . 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 6066	. . . . . . . . . . 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 7458	. . . . . . . . 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 2796	. . . . . . . 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 2847	. . . . . . 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 24957	. . . . . . . . 9 ⊢ (((𝐹‘𝐵) ∈ ℂ ∧ 𝐴 ⊆ ℂ ∧ ℂ ⊆ ℂ) → (𝑧 ∈ 𝐴 ↦ (𝐹‘𝐵)) ∈ (𝐴–cn→ℂ))
115	29, 36, 32, 114	syl3anc 1371	. . . . . . . 8 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝑧 ∈ 𝐴 ↦ (𝐹‘𝐵)) ∈ (𝐴–cn→ℂ))
116		eqidd 2741	. . . . . . . 8 ⊢ (𝑧 = 𝐵 → (𝐹‘𝐵) = (𝐹‘𝐵))
117	115, 28, 116	cnmptlimc 25945	. . . . . . 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 24906	. . . . . . . 8 ⊢ + ∈ ((𝐾 ×_t 𝐾) Cn 𝐾)
119		opelxpi 5737	. . . . . . . . 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 23307	. . . . . . . 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 25947	. . . . . 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 11491	. . . . . 6 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (0 + (𝐹‘𝐵)) = (𝐹‘𝐵))
125	2, 30	npcand 11651	. . . . . . . . 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 5266	. . . . . . . 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 6990	. . . . . . . 8 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐹 = (𝑧 ∈ 𝐴 ↦ (𝐹‘𝑧)))
128	126, 127	eqtr4d 2783	. . . . . . 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 7463	. . . . . 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 2858	. . . . 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 25942	. . . . . 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 1932	. 2 ⊢ ((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) → (∃𝑦 𝐵(𝑆 D 𝐹)𝑦 → 𝐹 ∈ ((𝐽 CnP 𝐾)‘𝐵)))
137		eldmg 5923	. . 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 1537 ∃wex 1777 ∈ wcel 2108 ≠ wne 2946 Vcvv 3488 ∖ cdif 3973 ⊆ wss 3976 {csn 4648 ⟨cop 4654 ∪ cuni 4931 class class class wbr 5166 {copab 5228 ↦ cmpt 5249 × cxp 5698 dom cdm 5700 ↾ cres 5702 ⟶wf 6569 ‘cfv 6573 (class class class)co 7448 ∈ cmpo 7450 ℂcc 11182 0cc0 11184 + caddc 11187 · cmul 11189 − cmin 11520 / cdiv 11947 ↾_t crest 17480 TopOpenctopn 17481 ℂ_fldccnfld 21387 Topctop 22920 TopOnctopon 22937 intcnt 23046 Cn ccn 23253 CnP ccnp 23254 ×_t ctx 23589 –cn→ccncf 24921 lim_ℂ climc 25917 D cdv 25918

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 ax-addf 11263

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-se 5653 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-isom 6582 df-riota 7404 df-ov 7451 df-oprab 7452 df-mpo 7453 df-of 7714 df-om 7904 df-1st 8030 df-2nd 8031 df-supp 8202 df-frecs 8322 df-wrecs 8353 df-recs 8427 df-rdg 8466 df-1o 8522 df-2o 8523 df-er 8763 df-map 8886 df-pm 8887 df-ixp 8956 df-en 9004 df-dom 9005 df-sdom 9006 df-fin 9007 df-fsupp 9432 df-fi 9480 df-sup 9511 df-inf 9512 df-oi 9579 df-card 10008 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-icc 13414 df-fz 13568 df-fzo 13712 df-seq 14053 df-exp 14113 df-hash 14380 df-cj 15148 df-re 15149 df-im 15150 df-sqrt 15284 df-abs 15285 df-struct 17194 df-sets 17211 df-slot 17229 df-ndx 17241 df-base 17259 df-ress 17288 df-plusg 17324 df-mulr 17325 df-starv 17326 df-sca 17327 df-vsca 17328 df-ip 17329 df-tset 17330 df-ple 17331 df-ds 17333 df-unif 17334 df-hom 17335 df-cco 17336 df-rest 17482 df-topn 17483 df-0g 17501 df-gsum 17502 df-topgen 17503 df-pt 17504 df-prds 17507 df-xrs 17562 df-qtop 17567 df-imas 17568 df-xps 17570 df-mre 17644 df-mrc 17645 df-acs 17647 df-mgm 18678 df-sgrp 18757 df-mnd 18773 df-submnd 18819 df-mulg 19108 df-cntz 19357 df-cmn 19824 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-ntr 23049 df-cn 23256 df-cnp 23257 df-tx 23591 df-hmeo 23784 df-xms 24351 df-ms 24352 df-tms 24353 df-cncf 24923 df-limc 25921 df-dv 25922

This theorem is referenced by: dvcn 25977 dvmulbr 25995 dvmulbrOLD 25996 dvcobr 26003 dvcobrOLD 26004 fouriersw 46152

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