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Theorem dvcnp2 25848

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 11218. (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 7094	. . . . . . . 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 24699	. . . . . . . . . . . . 13 ⊢ 𝐾 ∈ Top
5		simpl1 1189	. . . . . . . . . . . . . 14 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝑆 ⊆ ℂ)
6		cnex 11219	. . . . . . . . . . . . . 14 ⊢ ℂ ∈ V
7		ssexg 5323	. . . . . . . . . . . . . 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 23063	. . . . . . . . . . . . 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 24698	. . . . . . . . . . . . . . 15 ⊢ 𝐾 ∈ (TopOn‘ℂ)
13		resttopon 23064	. . . . . . . . . . . . . . 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 22815	. . . . . . . . . . . . . 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 4020	. . . . . . . . . . . 12 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐴 ⊆ ∪ (𝐾 ↾_t 𝑆))
18		eqid 2728	. . . . . . . . . . . . 13 ⊢ ∪ (𝐾 ↾_t 𝑆) = ∪ (𝐾 ↾_t 𝑆)
19	18	ntrss2 22960	. . . . . . . . . . . 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 2728	. . . . . . . . . . . . 13 ⊢ (𝐾 ↾_t 𝑆) = (𝐾 ↾_t 𝑆)
22		eqid 2728	. . . . . . . . . . . . 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 25826	. . . . . . . . . . . 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 3981	. . . . . . . . . 10 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐵 ∈ 𝐴)
29	1, 28	ffvelcdmd 7095	. . . . . . . . 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 11601	. . . . . . 7 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ 𝐴) → ((𝐹‘𝑧) − (𝐹‘𝐵)) ∈ ℂ)
32		ssidd 4003	. . . . . . 7 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → ℂ ⊆ ℂ)
33		txtopon 23494	. . . . . . . . 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 22822	. . . . . . 7 ⊢ (𝐾 ×_t 𝐾) = ((𝐾 ×_t 𝐾) ↾_t (ℂ × ℂ))
36	11, 5	sstrd 3990	. . . . . . . . . . . . 13 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐴 ⊆ ℂ)
37		eqid 2728	. . . . . . . . . . . . . . . 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 25826	. . . . . . . . . . . . . . 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 3981	. . . . . . . . . . . . 13 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐵 ∈ 𝐴)
41	1, 36, 40	dvlem 25824	. . . . . . . . . . . 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 4141	. . . . . . . . . . . . . 14 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝐴 ∖ {𝐵}) ⊆ ℂ)
43	42	sselda 3980	. . . . . . . . . . . . 13 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → 𝑧 ∈ ℂ)
44	36, 40	sseldd 3981	. . . . . . . . . . . . . 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 11601	. . . . . . . . . . . 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 25813	. . . . . . . . . . . . . 14 ⊢ ((𝑧 ∈ 𝐴 ↦ (𝑧 − 𝐵)) lim_ℂ 𝐵) ⊆ (((𝑧 ∈ 𝐴 ↦ (𝑧 − 𝐵)) ↾ (𝐴 ∖ {𝐵})) lim_ℂ 𝐵)
49		difss 4130	. . . . . . . . . . . . . . . 16 ⊢ (𝐴 ∖ {𝐵}) ⊆ 𝐴
50		resmpt 6041	. . . . . . . . . . . . . . . 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 7430	. . . . . . . . . . . . . 14 ⊢ (((𝑧 ∈ 𝐴 ↦ (𝑧 − 𝐵)) ↾ (𝐴 ∖ {𝐵})) lim_ℂ 𝐵) = ((𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ (𝑧 − 𝐵)) lim_ℂ 𝐵)
53	48, 52	sseqtri 4016	. . . . . . . . . . . . 13 ⊢ ((𝑧 ∈ 𝐴 ↦ (𝑧 − 𝐵)) lim_ℂ 𝐵) ⊆ ((𝑧 ∈ (𝐴 ∖ {𝐵}) ↦ (𝑧 − 𝐵)) lim_ℂ 𝐵)
54	44	subidd 11589	. . . . . . . . . . . . . 14 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝐵 − 𝐵) = 0)
55		ssid 4002	. . . . . . . . . . . . . . . . 17 ⊢ ℂ ⊆ ℂ
56		cncfmptid 24832	. . . . . . . . . . . . . . . . 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 24831	. . . . . . . . . . . . . . . . 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 25372	. . . . . . . . . . . . . . 15 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝑧 ∈ 𝐴 ↦ (𝑧 − 𝐵)) ∈ (𝐴–cn→ℂ))
61		oveq1 7427	. . . . . . . . . . . . . . 15 ⊢ (𝑧 = 𝐵 → (𝑧 − 𝐵) = (𝐵 − 𝐵))
62	60, 40, 61	cnmptlimc 25818	. . . . . . . . . . . . . 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 2830	. . . . . . . . . . . . 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 3978	. . . . . . . . . . . 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 24784	. . . . . . . . . . . . 13 ⊢ (𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 · 𝑣)) ∈ ((𝐾 ×_t 𝐾) Cn 𝐾)
66	23, 24, 25	dvcl 25827	. . . . . . . . . . . . . 14 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝑦 ∈ ℂ)
67		0cn 11236	. . . . . . . . . . . . . 14 ⊢ 0 ∈ ℂ
68		opelxpi 5715	. . . . . . . . . . . . . 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 22817	. . . . . . . . . . . . . 14 ⊢ (ℂ × ℂ) = ∪ (𝐾 ×_t 𝐾)
71	70	cncnpi 23181	. . . . . . . . . . . . 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 25820	. . . . . . . . . . 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 5232	. . . . . . . . . . . 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 7430	. . . . . . . . . . 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 2839	. . . . . . . . . 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 11237	. . . . . . . . . . 11 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 0 ∈ ℂ)
78		ovmpot 7582	. . . . . . . . . . 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 25824	. . . . . . . . . . . . . . . 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 3981	. . . . . . . . . . . . . . . . . 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 11601	. . . . . . . . . . . . . . . 16 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → (𝑧 − 𝐵) ∈ ℂ)
84		ovmpot 7582	. . . . . . . . . . . . . . . 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 2739	. . . . . . . . . . . . . 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 5214	. . . . . . . . . . . 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 5232	. . . . . . . . . . . 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 2786	. . . . . . . . . . 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 7435	. . . . . . . . . 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 2843	. . . . . . . . 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 11443	. . . . . . . . 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 3978	. . . . . . . . . . . . . 14 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → 𝑧 ∈ 𝐴)
97	94, 96	ffvelcdmd 7095	. . . . . . . . . . . . 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 11601	. . . . . . . . . . . 12 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → ((𝐹‘𝑧) − (𝐹‘𝐵)) ∈ ℂ)
100		eldifsni 4794	. . . . . . . . . . . . . 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 11610	. . . . . . . . . . . 12 ⊢ ((((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) ∧ 𝑧 ∈ (𝐴 ∖ {𝐵})) → (𝑧 − 𝐵) ≠ 0)
103	99, 83, 102	divcan1d 12021	. . . . . . . . . . 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 5248	. . . . . . . . . 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 7435	. . . . . . . . 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 2843	. . . . . . . 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 7125	. . . . . . . . . 10 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (𝑧 ∈ 𝐴 ↦ ((𝐹‘𝑧) − (𝐹‘𝐵))):𝐴⟶ℂ)
108	107	limcdif 25804	. . . . . . . . 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 6041	. . . . . . . . . . 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 7430	. . . . . . . . 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 2784	. . . . . . . 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 2832	. . . . . . 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 24831	. . . . . . . . 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 2729	. . . . . . . 8 ⊢ (𝑧 = 𝐵 → (𝐹‘𝐵) = (𝐹‘𝐵))
117	115, 28, 116	cnmptlimc 25818	. . . . . . 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 24780	. . . . . . . 8 ⊢ + ∈ ((𝐾 ×_t 𝐾) Cn 𝐾)
119		opelxpi 5715	. . . . . . . . 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 23181	. . . . . . . 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 25820	. . . . . 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 11445	. . . . . 6 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → (0 + (𝐹‘𝐵)) = (𝐹‘𝐵))
125	2, 30	npcand 11605	. . . . . . . . 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 5248	. . . . . . . 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 6967	. . . . . . . 8 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆) ∧ 𝐵(𝑆 D 𝐹)𝑦) → 𝐹 = (𝑧 ∈ 𝐴 ↦ (𝐹‘𝑧)))
128	126, 127	eqtr4d 2771	. . . . . . 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 7435	. . . . . 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 2843	. . . . 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 25815	. . . . . 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 5901	. . 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 2937 Vcvv 3471 ∖ cdif 3944 ⊆ wss 3947 {csn 4629 ⟨cop 4635 ∪ cuni 4908 class class class wbr 5148 {copab 5210 ↦ cmpt 5231 × cxp 5676 dom cdm 5678 ↾ cres 5680 ⟶wf 6544 ‘cfv 6548 (class class class)co 7420 ∈ cmpo 7422 ℂcc 11136 0cc0 11138 + caddc 11141 · cmul 11143 − cmin 11474 / cdiv 11901 ↾_t crest 17401 TopOpenctopn 17402 ℂ_fldccnfld 21278 Topctop 22794 TopOnctopon 22811 intcnt 22920 Cn ccn 23127 CnP ccnp 23128 ×_t ctx 23463 –cn→ccncf 24795 lim_ℂ climc 25790 D cdv 25791

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 2167 ax-ext 2699 ax-rep 5285 ax-sep 5299 ax-nul 5306 ax-pow 5365 ax-pr 5429 ax-un 7740 ax-cnex 11194 ax-resscn 11195 ax-1cn 11196 ax-icn 11197 ax-addcl 11198 ax-addrcl 11199 ax-mulcl 11200 ax-mulrcl 11201 ax-mulcom 11202 ax-addass 11203 ax-mulass 11204 ax-distr 11205 ax-i2m1 11206 ax-1ne0 11207 ax-1rid 11208 ax-rnegex 11209 ax-rrecex 11210 ax-cnre 11211 ax-pre-lttri 11212 ax-pre-lttrn 11213 ax-pre-ltadd 11214 ax-pre-mulgt0 11215 ax-pre-sup 11216 ax-addf 11217

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 2530 df-eu 2559 df-clab 2706 df-cleq 2720 df-clel 2806 df-nfc 2881 df-ne 2938 df-nel 3044 df-ral 3059 df-rex 3068 df-rmo 3373 df-reu 3374 df-rab 3430 df-v 3473 df-sbc 3777 df-csb 3893 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-pss 3966 df-nul 4324 df-if 4530 df-pw 4605 df-sn 4630 df-pr 4632 df-tp 4634 df-op 4636 df-uni 4909 df-int 4950 df-iun 4998 df-iin 4999 df-br 5149 df-opab 5211 df-mpt 5232 df-tr 5266 df-id 5576 df-eprel 5582 df-po 5590 df-so 5591 df-fr 5633 df-se 5634 df-we 5635 df-xp 5684 df-rel 5685 df-cnv 5686 df-co 5687 df-dm 5688 df-rn 5689 df-res 5690 df-ima 5691 df-pred 6305 df-ord 6372 df-on 6373 df-lim 6374 df-suc 6375 df-iota 6500 df-fun 6550 df-fn 6551 df-f 6552 df-f1 6553 df-fo 6554 df-f1o 6555 df-fv 6556 df-isom 6557 df-riota 7376 df-ov 7423 df-oprab 7424 df-mpo 7425 df-of 7685 df-om 7871 df-1st 7993 df-2nd 7994 df-supp 8166 df-frecs 8286 df-wrecs 8317 df-recs 8391 df-rdg 8430 df-1o 8486 df-2o 8487 df-er 8724 df-map 8846 df-pm 8847 df-ixp 8916 df-en 8964 df-dom 8965 df-sdom 8966 df-fin 8967 df-fsupp 9386 df-fi 9434 df-sup 9465 df-inf 9466 df-oi 9533 df-card 9962 df-pnf 11280 df-mnf 11281 df-xr 11282 df-ltxr 11283 df-le 11284 df-sub 11476 df-neg 11477 df-div 11902 df-nn 12243 df-2 12305 df-3 12306 df-4 12307 df-5 12308 df-6 12309 df-7 12310 df-8 12311 df-9 12312 df-n0 12503 df-z 12589 df-dec 12708 df-uz 12853 df-q 12963 df-rp 13007 df-xneg 13124 df-xadd 13125 df-xmul 13126 df-icc 13363 df-fz 13517 df-fzo 13660 df-seq 13999 df-exp 14059 df-hash 14322 df-cj 15078 df-re 15079 df-im 15080 df-sqrt 15214 df-abs 15215 df-struct 17115 df-sets 17132 df-slot 17150 df-ndx 17162 df-base 17180 df-ress 17209 df-plusg 17245 df-mulr 17246 df-starv 17247 df-sca 17248 df-vsca 17249 df-ip 17250 df-tset 17251 df-ple 17252 df-ds 17254 df-unif 17255 df-hom 17256 df-cco 17257 df-rest 17403 df-topn 17404 df-0g 17422 df-gsum 17423 df-topgen 17424 df-pt 17425 df-prds 17428 df-xrs 17483 df-qtop 17488 df-imas 17489 df-xps 17491 df-mre 17565 df-mrc 17566 df-acs 17568 df-mgm 18599 df-sgrp 18678 df-mnd 18694 df-submnd 18740 df-mulg 19023 df-cntz 19267 df-cmn 19736 df-psmet 21270 df-xmet 21271 df-met 21272 df-bl 21273 df-mopn 21274 df-cnfld 21279 df-top 22795 df-topon 22812 df-topsp 22834 df-bases 22848 df-ntr 22923 df-cn 23130 df-cnp 23131 df-tx 23465 df-hmeo 23658 df-xms 24225 df-ms 24226 df-tms 24227 df-cncf 24797 df-limc 25794 df-dv 25795

This theorem is referenced by: dvcn 25850 dvmulbr 25868 dvmulbrOLD 25869 dvcobr 25876 dvcobrOLD 25877 fouriersw 45619

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