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Theorem dvtaylp 26325

Description: The derivative of the Taylor polynomial is the Taylor polynomial of the derivative of the function. (Contributed by Mario Carneiro, 31-Dec-2016.)

**Hypotheses**
Ref	Expression
dvtaylp.s	⊢ (𝜑 → 𝑆 ∈ {ℝ, ℂ})
dvtaylp.f	⊢ (𝜑 → 𝐹:𝐴⟶ℂ)
dvtaylp.a	⊢ (𝜑 → 𝐴 ⊆ 𝑆)
dvtaylp.n	⊢ (𝜑 → 𝑁 ∈ ℕ₀)
dvtaylp.b	⊢ (𝜑 → 𝐵 ∈ dom ((𝑆 D^𝑛 𝐹)‘(𝑁 + 1)))

**Assertion**
Ref	Expression
dvtaylp	⊢ (𝜑 → (ℂ D ((𝑁 + 1)(𝑆 Tayl 𝐹)𝐵)) = (𝑁(𝑆 Tayl (𝑆 D 𝐹))𝐵))

Proof of Theorem dvtaylp Dummy variables 𝑗 𝑘 𝑥 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		eqid 2728	. . . . . 6 ⊢ (TopOpen‘ℂ_fld) = (TopOpen‘ℂ_fld)
2	1	cnfldtopon 24719	. . . . 5 ⊢ (TopOpen‘ℂ_fld) ∈ (TopOn‘ℂ)
3	2	toponrestid 22843	. . . 4 ⊢ (TopOpen‘ℂ_fld) = ((TopOpen‘ℂ_fld) ↾_t ℂ)
4		cnelprrecn 11239	. . . . 5 ⊢ ℂ ∈ {ℝ, ℂ}
5	4	a1i 11	. . . 4 ⊢ (𝜑 → ℂ ∈ {ℝ, ℂ})
6		toponmax 22848	. . . . 5 ⊢ ((TopOpen‘ℂ_fld) ∈ (TopOn‘ℂ) → ℂ ∈ (TopOpen‘ℂ_fld))
7	2, 6	mp1i 13	. . . 4 ⊢ (𝜑 → ℂ ∈ (TopOpen‘ℂ_fld))
8		fzfid 13978	. . . 4 ⊢ (𝜑 → (0...(𝑁 + 1)) ∈ Fin)
9		dvtaylp.s	. . . . . . . . 9 ⊢ (𝜑 → 𝑆 ∈ {ℝ, ℂ})
10		cnex 11227	. . . . . . . . . . 11 ⊢ ℂ ∈ V
11	10	a1i 11	. . . . . . . . . 10 ⊢ (𝜑 → ℂ ∈ V)
12		dvtaylp.f	. . . . . . . . . 10 ⊢ (𝜑 → 𝐹:𝐴⟶ℂ)
13		dvtaylp.a	. . . . . . . . . 10 ⊢ (𝜑 → 𝐴 ⊆ 𝑆)
14		elpm2r 8870	. . . . . . . . . 10 ⊢ (((ℂ ∈ V ∧ 𝑆 ∈ {ℝ, ℂ}) ∧ (𝐹:𝐴⟶ℂ ∧ 𝐴 ⊆ 𝑆)) → 𝐹 ∈ (ℂ ↑_pm 𝑆))
15	11, 9, 12, 13, 14	syl22anc 837	. . . . . . . . 9 ⊢ (𝜑 → 𝐹 ∈ (ℂ ↑_pm 𝑆))
16		elfznn0 13634	. . . . . . . . 9 ⊢ (𝑘 ∈ (0...(𝑁 + 1)) → 𝑘 ∈ ℕ₀)
17		dvnf 25877	. . . . . . . . 9 ⊢ ((𝑆 ∈ {ℝ, ℂ} ∧ 𝐹 ∈ (ℂ ↑_pm 𝑆) ∧ 𝑘 ∈ ℕ₀) → ((𝑆 D^𝑛 𝐹)‘𝑘):dom ((𝑆 D^𝑛 𝐹)‘𝑘)⟶ℂ)
18	9, 15, 16, 17	syl2an3an 1419	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → ((𝑆 D^𝑛 𝐹)‘𝑘):dom ((𝑆 D^𝑛 𝐹)‘𝑘)⟶ℂ)
19		0z 12607	. . . . . . . . . . . 12 ⊢ 0 ∈ ℤ
20		dvtaylp.n	. . . . . . . . . . . . . 14 ⊢ (𝜑 → 𝑁 ∈ ℕ₀)
21		peano2nn0 12550	. . . . . . . . . . . . . 14 ⊢ (𝑁 ∈ ℕ₀ → (𝑁 + 1) ∈ ℕ₀)
22	20, 21	syl 17	. . . . . . . . . . . . 13 ⊢ (𝜑 → (𝑁 + 1) ∈ ℕ₀)
23	22	nn0zd 12622	. . . . . . . . . . . 12 ⊢ (𝜑 → (𝑁 + 1) ∈ ℤ)
24		fzval2 13527	. . . . . . . . . . . 12 ⊢ ((0 ∈ ℤ ∧ (𝑁 + 1) ∈ ℤ) → (0...(𝑁 + 1)) = ((0[,](𝑁 + 1)) ∩ ℤ))
25	19, 23, 24	sylancr 585	. . . . . . . . . . 11 ⊢ (𝜑 → (0...(𝑁 + 1)) = ((0[,](𝑁 + 1)) ∩ ℤ))
26	25	eleq2d 2815	. . . . . . . . . 10 ⊢ (𝜑 → (𝑘 ∈ (0...(𝑁 + 1)) ↔ 𝑘 ∈ ((0[,](𝑁 + 1)) ∩ ℤ)))
27	26	biimpa 475	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → 𝑘 ∈ ((0[,](𝑁 + 1)) ∩ ℤ))
28		dvtaylp.b	. . . . . . . . . 10 ⊢ (𝜑 → 𝐵 ∈ dom ((𝑆 D^𝑛 𝐹)‘(𝑁 + 1)))
29	9, 12, 13, 22, 28	taylplem1 26317	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑘 ∈ ((0[,](𝑁 + 1)) ∩ ℤ)) → 𝐵 ∈ dom ((𝑆 D^𝑛 𝐹)‘𝑘))
30	27, 29	syldan 589	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → 𝐵 ∈ dom ((𝑆 D^𝑛 𝐹)‘𝑘))
31	18, 30	ffvelcdmd 7100	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) ∈ ℂ)
32	16	adantl 480	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → 𝑘 ∈ ℕ₀)
33	32	faccld 14283	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (!‘𝑘) ∈ ℕ)
34	33	nncnd 12266	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (!‘𝑘) ∈ ℂ)
35	33	nnne0d 12300	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (!‘𝑘) ≠ 0)
36	31, 34, 35	divcld 12028	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → ((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) ∈ ℂ)
37	36	3adant3 1129	. . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1)) ∧ 𝑥 ∈ ℂ) → ((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) ∈ ℂ)
38		simp3 1135	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1)) ∧ 𝑥 ∈ ℂ) → 𝑥 ∈ ℂ)
39		recnprss 25853	. . . . . . . . . . 11 ⊢ (𝑆 ∈ {ℝ, ℂ} → 𝑆 ⊆ ℂ)
40	9, 39	syl 17	. . . . . . . . . 10 ⊢ (𝜑 → 𝑆 ⊆ ℂ)
41	13, 40	sstrd 3992	. . . . . . . . 9 ⊢ (𝜑 → 𝐴 ⊆ ℂ)
42		dvnbss 25878	. . . . . . . . . . . 12 ⊢ ((𝑆 ∈ {ℝ, ℂ} ∧ 𝐹 ∈ (ℂ ↑_pm 𝑆) ∧ (𝑁 + 1) ∈ ℕ₀) → dom ((𝑆 D^𝑛 𝐹)‘(𝑁 + 1)) ⊆ dom 𝐹)
43	9, 15, 22, 42	syl3anc 1368	. . . . . . . . . . 11 ⊢ (𝜑 → dom ((𝑆 D^𝑛 𝐹)‘(𝑁 + 1)) ⊆ dom 𝐹)
44	12, 43	fssdmd 6746	. . . . . . . . . 10 ⊢ (𝜑 → dom ((𝑆 D^𝑛 𝐹)‘(𝑁 + 1)) ⊆ 𝐴)
45	44, 28	sseldd 3983	. . . . . . . . 9 ⊢ (𝜑 → 𝐵 ∈ 𝐴)
46	41, 45	sseldd 3983	. . . . . . . 8 ⊢ (𝜑 → 𝐵 ∈ ℂ)
47	46	3ad2ant1 1130	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1)) ∧ 𝑥 ∈ ℂ) → 𝐵 ∈ ℂ)
48	38, 47	subcld 11609	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1)) ∧ 𝑥 ∈ ℂ) → (𝑥 − 𝐵) ∈ ℂ)
49	16	3ad2ant2 1131	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1)) ∧ 𝑥 ∈ ℂ) → 𝑘 ∈ ℕ₀)
50	48, 49	expcld 14150	. . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1)) ∧ 𝑥 ∈ ℂ) → ((𝑥 − 𝐵)↑𝑘) ∈ ℂ)
51	37, 50	mulcld 11272	. . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1)) ∧ 𝑥 ∈ ℂ) → (((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · ((𝑥 − 𝐵)↑𝑘)) ∈ ℂ)
52		0cnd 11245	. . . . . 6 ⊢ (((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1)) ∧ 𝑥 ∈ ℂ) ∧ 𝑘 = 0) → 0 ∈ ℂ)
53	49	nn0cnd 12572	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1)) ∧ 𝑥 ∈ ℂ) → 𝑘 ∈ ℂ)
54	53	adantr 479	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1)) ∧ 𝑥 ∈ ℂ) ∧ ¬ 𝑘 = 0) → 𝑘 ∈ ℂ)
55	48	adantr 479	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1)) ∧ 𝑥 ∈ ℂ) ∧ ¬ 𝑘 = 0) → (𝑥 − 𝐵) ∈ ℂ)
56	49	adantr 479	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1)) ∧ 𝑥 ∈ ℂ) ∧ ¬ 𝑘 = 0) → 𝑘 ∈ ℕ₀)
57		simpr 483	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1)) ∧ 𝑥 ∈ ℂ) ∧ ¬ 𝑘 = 0) → ¬ 𝑘 = 0)
58	57	neqned 2944	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1)) ∧ 𝑥 ∈ ℂ) ∧ ¬ 𝑘 = 0) → 𝑘 ≠ 0)
59		elnnne0 12524	. . . . . . . . . 10 ⊢ (𝑘 ∈ ℕ ↔ (𝑘 ∈ ℕ₀ ∧ 𝑘 ≠ 0))
60	56, 58, 59	sylanbrc 581	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1)) ∧ 𝑥 ∈ ℂ) ∧ ¬ 𝑘 = 0) → 𝑘 ∈ ℕ)
61		nnm1nn0 12551	. . . . . . . . 9 ⊢ (𝑘 ∈ ℕ → (𝑘 − 1) ∈ ℕ₀)
62	60, 61	syl 17	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1)) ∧ 𝑥 ∈ ℂ) ∧ ¬ 𝑘 = 0) → (𝑘 − 1) ∈ ℕ₀)
63	55, 62	expcld 14150	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1)) ∧ 𝑥 ∈ ℂ) ∧ ¬ 𝑘 = 0) → ((𝑥 − 𝐵)↑(𝑘 − 1)) ∈ ℂ)
64	54, 63	mulcld 11272	. . . . . 6 ⊢ (((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1)) ∧ 𝑥 ∈ ℂ) ∧ ¬ 𝑘 = 0) → (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1))) ∈ ℂ)
65	52, 64	ifclda 4567	. . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1)) ∧ 𝑥 ∈ ℂ) → if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1)))) ∈ ℂ)
66	37, 65	mulcld 11272	. . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1)) ∧ 𝑥 ∈ ℂ) → (((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1))))) ∈ ℂ)
67	4	a1i 11	. . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → ℂ ∈ {ℝ, ℂ})
68	50	3expa 1115	. . . . 5 ⊢ (((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) ∧ 𝑥 ∈ ℂ) → ((𝑥 − 𝐵)↑𝑘) ∈ ℂ)
69	65	3expa 1115	. . . . 5 ⊢ (((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) ∧ 𝑥 ∈ ℂ) → if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1)))) ∈ ℂ)
70	48	3expa 1115	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) ∧ 𝑥 ∈ ℂ) → (𝑥 − 𝐵) ∈ ℂ)
71		1cnd 11247	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) ∧ 𝑥 ∈ ℂ) → 1 ∈ ℂ)
72		simpr 483	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) ∧ 𝑦 ∈ ℂ) → 𝑦 ∈ ℂ)
73	32	adantr 479	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) ∧ 𝑦 ∈ ℂ) → 𝑘 ∈ ℕ₀)
74	72, 73	expcld 14150	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) ∧ 𝑦 ∈ ℂ) → (𝑦↑𝑘) ∈ ℂ)
75		c0ex 11246	. . . . . . . . 9 ⊢ 0 ∈ V
76		ovex 7459	. . . . . . . . 9 ⊢ (𝑘 · (𝑦↑(𝑘 − 1))) ∈ V
77	75, 76	ifex 4582	. . . . . . . 8 ⊢ if(𝑘 = 0, 0, (𝑘 · (𝑦↑(𝑘 − 1)))) ∈ V
78	77	a1i 11	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) ∧ 𝑦 ∈ ℂ) → if(𝑘 = 0, 0, (𝑘 · (𝑦↑(𝑘 − 1)))) ∈ V)
79		simpr 483	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) ∧ 𝑥 ∈ ℂ) → 𝑥 ∈ ℂ)
80	67	dvmptid 25909	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (ℂ D (𝑥 ∈ ℂ ↦ 𝑥)) = (𝑥 ∈ ℂ ↦ 1))
81	46	ad2antrr 724	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) ∧ 𝑥 ∈ ℂ) → 𝐵 ∈ ℂ)
82		0cnd 11245	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) ∧ 𝑥 ∈ ℂ) → 0 ∈ ℂ)
83	46	adantr 479	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → 𝐵 ∈ ℂ)
84	67, 83	dvmptc 25910	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (ℂ D (𝑥 ∈ ℂ ↦ 𝐵)) = (𝑥 ∈ ℂ ↦ 0))
85	67, 79, 71, 80, 81, 82, 84	dvmptsub 25919	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (ℂ D (𝑥 ∈ ℂ ↦ (𝑥 − 𝐵))) = (𝑥 ∈ ℂ ↦ (1 − 0)))
86		1m0e1 12371	. . . . . . . . 9 ⊢ (1 − 0) = 1
87	86	mpteq2i 5257	. . . . . . . 8 ⊢ (𝑥 ∈ ℂ ↦ (1 − 0)) = (𝑥 ∈ ℂ ↦ 1)
88	85, 87	eqtrdi 2784	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (ℂ D (𝑥 ∈ ℂ ↦ (𝑥 − 𝐵))) = (𝑥 ∈ ℂ ↦ 1))
89		dvexp2 25906	. . . . . . . 8 ⊢ (𝑘 ∈ ℕ₀ → (ℂ D (𝑦 ∈ ℂ ↦ (𝑦↑𝑘))) = (𝑦 ∈ ℂ ↦ if(𝑘 = 0, 0, (𝑘 · (𝑦↑(𝑘 − 1))))))
90	32, 89	syl 17	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (ℂ D (𝑦 ∈ ℂ ↦ (𝑦↑𝑘))) = (𝑦 ∈ ℂ ↦ if(𝑘 = 0, 0, (𝑘 · (𝑦↑(𝑘 − 1))))))
91		oveq1 7433	. . . . . . 7 ⊢ (𝑦 = (𝑥 − 𝐵) → (𝑦↑𝑘) = ((𝑥 − 𝐵)↑𝑘))
92		oveq1 7433	. . . . . . . . 9 ⊢ (𝑦 = (𝑥 − 𝐵) → (𝑦↑(𝑘 − 1)) = ((𝑥 − 𝐵)↑(𝑘 − 1)))
93	92	oveq2d 7442	. . . . . . . 8 ⊢ (𝑦 = (𝑥 − 𝐵) → (𝑘 · (𝑦↑(𝑘 − 1))) = (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1))))
94	93	ifeq2d 4552	. . . . . . 7 ⊢ (𝑦 = (𝑥 − 𝐵) → if(𝑘 = 0, 0, (𝑘 · (𝑦↑(𝑘 − 1)))) = if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1)))))
95	67, 67, 70, 71, 74, 78, 88, 90, 91, 94	dvmptco 25924	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (ℂ D (𝑥 ∈ ℂ ↦ ((𝑥 − 𝐵)↑𝑘))) = (𝑥 ∈ ℂ ↦ (if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1)))) · 1)))
96	69	mulridd 11269	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) ∧ 𝑥 ∈ ℂ) → (if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1)))) · 1) = if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1)))))
97	96	mpteq2dva 5252	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (𝑥 ∈ ℂ ↦ (if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1)))) · 1)) = (𝑥 ∈ ℂ ↦ if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1))))))
98	95, 97	eqtrd 2768	. . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (ℂ D (𝑥 ∈ ℂ ↦ ((𝑥 − 𝐵)↑𝑘))) = (𝑥 ∈ ℂ ↦ if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1))))))
99	67, 68, 69, 98, 36	dvmptcmul 25916	. . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (ℂ D (𝑥 ∈ ℂ ↦ (((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · ((𝑥 − 𝐵)↑𝑘)))) = (𝑥 ∈ ℂ ↦ (((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1)))))))
100	3, 1, 5, 7, 8, 51, 66, 99	dvmptfsum 25927	. . 3 ⊢ (𝜑 → (ℂ D (𝑥 ∈ ℂ ↦ Σ𝑘 ∈ (0...(𝑁 + 1))(((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · ((𝑥 − 𝐵)↑𝑘)))) = (𝑥 ∈ ℂ ↦ Σ𝑘 ∈ (0...(𝑁 + 1))(((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1)))))))
101		1zzd 12631	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ ℂ) → 1 ∈ ℤ)
102		0zd 12608	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ ℂ) → 0 ∈ ℤ)
103	20	nn0zd 12622	. . . . . . 7 ⊢ (𝜑 → 𝑁 ∈ ℤ)
104	103	adantr 479	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ ℂ) → 𝑁 ∈ ℤ)
105		dvfg 25855	. . . . . . . 8 ⊢ (𝑆 ∈ {ℝ, ℂ} → (𝑆 D 𝐹):dom (𝑆 D 𝐹)⟶ℂ)
106	9, 105	syl 17	. . . . . . 7 ⊢ (𝜑 → (𝑆 D 𝐹):dom (𝑆 D 𝐹)⟶ℂ)
107	40, 12, 13	dvbss 25850	. . . . . . . 8 ⊢ (𝜑 → dom (𝑆 D 𝐹) ⊆ 𝐴)
108	107, 13	sstrd 3992	. . . . . . 7 ⊢ (𝜑 → dom (𝑆 D 𝐹) ⊆ 𝑆)
109		1nn0 12526	. . . . . . . . . . . 12 ⊢ 1 ∈ ℕ₀
110	109	a1i 11	. . . . . . . . . . 11 ⊢ (𝜑 → 1 ∈ ℕ₀)
111		dvnadd 25879	. . . . . . . . . . 11 ⊢ (((𝑆 ∈ {ℝ, ℂ} ∧ 𝐹 ∈ (ℂ ↑_pm 𝑆)) ∧ (1 ∈ ℕ₀ ∧ 𝑁 ∈ ℕ₀)) → ((𝑆 D^𝑛 ((𝑆 D^𝑛 𝐹)‘1))‘𝑁) = ((𝑆 D^𝑛 𝐹)‘(1 + 𝑁)))
112	9, 15, 110, 20, 111	syl22anc 837	. . . . . . . . . 10 ⊢ (𝜑 → ((𝑆 D^𝑛 ((𝑆 D^𝑛 𝐹)‘1))‘𝑁) = ((𝑆 D^𝑛 𝐹)‘(1 + 𝑁)))
113		dvn1 25876	. . . . . . . . . . . . 13 ⊢ ((𝑆 ⊆ ℂ ∧ 𝐹 ∈ (ℂ ↑_pm 𝑆)) → ((𝑆 D^𝑛 𝐹)‘1) = (𝑆 D 𝐹))
114	40, 15, 113	syl2anc 582	. . . . . . . . . . . 12 ⊢ (𝜑 → ((𝑆 D^𝑛 𝐹)‘1) = (𝑆 D 𝐹))
115	114	oveq2d 7442	. . . . . . . . . . 11 ⊢ (𝜑 → (𝑆 D^𝑛 ((𝑆 D^𝑛 𝐹)‘1)) = (𝑆 D^𝑛 (𝑆 D 𝐹)))
116	115	fveq1d 6904	. . . . . . . . . 10 ⊢ (𝜑 → ((𝑆 D^𝑛 ((𝑆 D^𝑛 𝐹)‘1))‘𝑁) = ((𝑆 D^𝑛 (𝑆 D 𝐹))‘𝑁))
117		1cnd 11247	. . . . . . . . . . . 12 ⊢ (𝜑 → 1 ∈ ℂ)
118	20	nn0cnd 12572	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝑁 ∈ ℂ)
119	117, 118	addcomd 11454	. . . . . . . . . . 11 ⊢ (𝜑 → (1 + 𝑁) = (𝑁 + 1))
120	119	fveq2d 6906	. . . . . . . . . 10 ⊢ (𝜑 → ((𝑆 D^𝑛 𝐹)‘(1 + 𝑁)) = ((𝑆 D^𝑛 𝐹)‘(𝑁 + 1)))
121	112, 116, 120	3eqtr3d 2776	. . . . . . . . 9 ⊢ (𝜑 → ((𝑆 D^𝑛 (𝑆 D 𝐹))‘𝑁) = ((𝑆 D^𝑛 𝐹)‘(𝑁 + 1)))
122	121	dmeqd 5912	. . . . . . . 8 ⊢ (𝜑 → dom ((𝑆 D^𝑛 (𝑆 D 𝐹))‘𝑁) = dom ((𝑆 D^𝑛 𝐹)‘(𝑁 + 1)))
123	28, 122	eleqtrrd 2832	. . . . . . 7 ⊢ (𝜑 → 𝐵 ∈ dom ((𝑆 D^𝑛 (𝑆 D 𝐹))‘𝑁))
124	9, 106, 108, 20, 123	taylplem2 26318	. . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑗 ∈ (0...𝑁)) → (((((𝑆 D^𝑛 (𝑆 D 𝐹))‘𝑗)‘𝐵) / (!‘𝑗)) · ((𝑥 − 𝐵)↑𝑗)) ∈ ℂ)
125		fveq2 6902	. . . . . . . . 9 ⊢ (𝑗 = (𝑘 − 1) → ((𝑆 D^𝑛 (𝑆 D 𝐹))‘𝑗) = ((𝑆 D^𝑛 (𝑆 D 𝐹))‘(𝑘 − 1)))
126	125	fveq1d 6904	. . . . . . . 8 ⊢ (𝑗 = (𝑘 − 1) → (((𝑆 D^𝑛 (𝑆 D 𝐹))‘𝑗)‘𝐵) = (((𝑆 D^𝑛 (𝑆 D 𝐹))‘(𝑘 − 1))‘𝐵))
127		fveq2 6902	. . . . . . . 8 ⊢ (𝑗 = (𝑘 − 1) → (!‘𝑗) = (!‘(𝑘 − 1)))
128	126, 127	oveq12d 7444	. . . . . . 7 ⊢ (𝑗 = (𝑘 − 1) → ((((𝑆 D^𝑛 (𝑆 D 𝐹))‘𝑗)‘𝐵) / (!‘𝑗)) = ((((𝑆 D^𝑛 (𝑆 D 𝐹))‘(𝑘 − 1))‘𝐵) / (!‘(𝑘 − 1))))
129		oveq2 7434	. . . . . . 7 ⊢ (𝑗 = (𝑘 − 1) → ((𝑥 − 𝐵)↑𝑗) = ((𝑥 − 𝐵)↑(𝑘 − 1)))
130	128, 129	oveq12d 7444	. . . . . 6 ⊢ (𝑗 = (𝑘 − 1) → (((((𝑆 D^𝑛 (𝑆 D 𝐹))‘𝑗)‘𝐵) / (!‘𝑗)) · ((𝑥 − 𝐵)↑𝑗)) = (((((𝑆 D^𝑛 (𝑆 D 𝐹))‘(𝑘 − 1))‘𝐵) / (!‘(𝑘 − 1))) · ((𝑥 − 𝐵)↑(𝑘 − 1))))
131	101, 102, 104, 124, 130	fsumshft 15766	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ ℂ) → Σ𝑗 ∈ (0...𝑁)(((((𝑆 D^𝑛 (𝑆 D 𝐹))‘𝑗)‘𝐵) / (!‘𝑗)) · ((𝑥 − 𝐵)↑𝑗)) = Σ𝑘 ∈ ((0 + 1)...(𝑁 + 1))(((((𝑆 D^𝑛 (𝑆 D 𝐹))‘(𝑘 − 1))‘𝐵) / (!‘(𝑘 − 1))) · ((𝑥 − 𝐵)↑(𝑘 − 1))))
132		elfznn 13570	. . . . . . . . . . . 12 ⊢ (𝑘 ∈ (1...(𝑁 + 1)) → 𝑘 ∈ ℕ)
133	132	adantl 480	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → 𝑘 ∈ ℕ)
134	133	nnne0d 12300	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → 𝑘 ≠ 0)
135		ifnefalse 4544	. . . . . . . . . 10 ⊢ (𝑘 ≠ 0 → if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1)))) = (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1))))
136	134, 135	syl 17	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1)))) = (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1))))
137	136	oveq2d 7442	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → (((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1))))) = (((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1)))))
138		simpll 765	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → 𝜑)
139		fz1ssfz0 13637	. . . . . . . . . . . 12 ⊢ (1...(𝑁 + 1)) ⊆ (0...(𝑁 + 1))
140	139	sseli 3978	. . . . . . . . . . 11 ⊢ (𝑘 ∈ (1...(𝑁 + 1)) → 𝑘 ∈ (0...(𝑁 + 1)))
141	140	adantl 480	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → 𝑘 ∈ (0...(𝑁 + 1)))
142	138, 141, 36	syl2anc 582	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → ((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) ∈ ℂ)
143	133	nncnd 12266	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → 𝑘 ∈ ℂ)
144		simplr 767	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → 𝑥 ∈ ℂ)
145	46	ad2antrr 724	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → 𝐵 ∈ ℂ)
146	144, 145	subcld 11609	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → (𝑥 − 𝐵) ∈ ℂ)
147	133, 61	syl 17	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → (𝑘 − 1) ∈ ℕ₀)
148	146, 147	expcld 14150	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → ((𝑥 − 𝐵)↑(𝑘 − 1)) ∈ ℂ)
149	142, 143, 148	mulassd 11275	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → ((((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · 𝑘) · ((𝑥 − 𝐵)↑(𝑘 − 1))) = (((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1)))))
150		facp1 14277	. . . . . . . . . . . . 13 ⊢ ((𝑘 − 1) ∈ ℕ₀ → (!‘((𝑘 − 1) + 1)) = ((!‘(𝑘 − 1)) · ((𝑘 − 1) + 1)))
151	147, 150	syl 17	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → (!‘((𝑘 − 1) + 1)) = ((!‘(𝑘 − 1)) · ((𝑘 − 1) + 1)))
152		1cnd 11247	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → 1 ∈ ℂ)
153	143, 152	npcand 11613	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → ((𝑘 − 1) + 1) = 𝑘)
154	153	fveq2d 6906	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → (!‘((𝑘 − 1) + 1)) = (!‘𝑘))
155	153	oveq2d 7442	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → ((!‘(𝑘 − 1)) · ((𝑘 − 1) + 1)) = ((!‘(𝑘 − 1)) · 𝑘))
156	151, 154, 155	3eqtr3d 2776	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → (!‘𝑘) = ((!‘(𝑘 − 1)) · 𝑘))
157	156	oveq2d 7442	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → (((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) · 𝑘) / (!‘𝑘)) = (((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) · 𝑘) / ((!‘(𝑘 − 1)) · 𝑘)))
158	32	nn0cnd 12572	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → 𝑘 ∈ ℂ)
159	31, 158, 34, 35	div23d 12065	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) · 𝑘) / (!‘𝑘)) = (((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · 𝑘))
160	138, 141, 159	syl2anc 582	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → (((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) · 𝑘) / (!‘𝑘)) = (((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · 𝑘))
161	138, 141, 31	syl2anc 582	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → (((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) ∈ ℂ)
162	147	faccld 14283	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → (!‘(𝑘 − 1)) ∈ ℕ)
163	162	nncnd 12266	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → (!‘(𝑘 − 1)) ∈ ℂ)
164	162	nnne0d 12300	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → (!‘(𝑘 − 1)) ≠ 0)
165	161, 163, 143, 164, 134	divcan5rd 12055	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → (((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) · 𝑘) / ((!‘(𝑘 − 1)) · 𝑘)) = ((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘(𝑘 − 1))))
166	9	ad2antrr 724	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → 𝑆 ∈ {ℝ, ℂ})
167	15	ad2antrr 724	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → 𝐹 ∈ (ℂ ↑_pm 𝑆))
168	109	a1i 11	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → 1 ∈ ℕ₀)
169		dvnadd 25879	. . . . . . . . . . . . . . 15 ⊢ (((𝑆 ∈ {ℝ, ℂ} ∧ 𝐹 ∈ (ℂ ↑_pm 𝑆)) ∧ (1 ∈ ℕ₀ ∧ (𝑘 − 1) ∈ ℕ₀)) → ((𝑆 D^𝑛 ((𝑆 D^𝑛 𝐹)‘1))‘(𝑘 − 1)) = ((𝑆 D^𝑛 𝐹)‘(1 + (𝑘 − 1))))
170	166, 167, 168, 147, 169	syl22anc 837	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → ((𝑆 D^𝑛 ((𝑆 D^𝑛 𝐹)‘1))‘(𝑘 − 1)) = ((𝑆 D^𝑛 𝐹)‘(1 + (𝑘 − 1))))
171	114	ad2antrr 724	. . . . . . . . . . . . . . . 16 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → ((𝑆 D^𝑛 𝐹)‘1) = (𝑆 D 𝐹))
172	171	oveq2d 7442	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → (𝑆 D^𝑛 ((𝑆 D^𝑛 𝐹)‘1)) = (𝑆 D^𝑛 (𝑆 D 𝐹)))
173	172	fveq1d 6904	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → ((𝑆 D^𝑛 ((𝑆 D^𝑛 𝐹)‘1))‘(𝑘 − 1)) = ((𝑆 D^𝑛 (𝑆 D 𝐹))‘(𝑘 − 1)))
174	152, 143	pncan3d 11612	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → (1 + (𝑘 − 1)) = 𝑘)
175	174	fveq2d 6906	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → ((𝑆 D^𝑛 𝐹)‘(1 + (𝑘 − 1))) = ((𝑆 D^𝑛 𝐹)‘𝑘))
176	170, 173, 175	3eqtr3rd 2777	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → ((𝑆 D^𝑛 𝐹)‘𝑘) = ((𝑆 D^𝑛 (𝑆 D 𝐹))‘(𝑘 − 1)))
177	176	fveq1d 6904	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → (((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) = (((𝑆 D^𝑛 (𝑆 D 𝐹))‘(𝑘 − 1))‘𝐵))
178	177	oveq1d 7441	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → ((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘(𝑘 − 1))) = ((((𝑆 D^𝑛 (𝑆 D 𝐹))‘(𝑘 − 1))‘𝐵) / (!‘(𝑘 − 1))))
179	165, 178	eqtrd 2768	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → (((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) · 𝑘) / ((!‘(𝑘 − 1)) · 𝑘)) = ((((𝑆 D^𝑛 (𝑆 D 𝐹))‘(𝑘 − 1))‘𝐵) / (!‘(𝑘 − 1))))
180	157, 160, 179	3eqtr3d 2776	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → (((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · 𝑘) = ((((𝑆 D^𝑛 (𝑆 D 𝐹))‘(𝑘 − 1))‘𝐵) / (!‘(𝑘 − 1))))
181	180	oveq1d 7441	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → ((((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · 𝑘) · ((𝑥 − 𝐵)↑(𝑘 − 1))) = (((((𝑆 D^𝑛 (𝑆 D 𝐹))‘(𝑘 − 1))‘𝐵) / (!‘(𝑘 − 1))) · ((𝑥 − 𝐵)↑(𝑘 − 1))))
182	137, 149, 181	3eqtr2d 2774	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → (((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1))))) = (((((𝑆 D^𝑛 (𝑆 D 𝐹))‘(𝑘 − 1))‘𝐵) / (!‘(𝑘 − 1))) · ((𝑥 − 𝐵)↑(𝑘 − 1))))
183	182	sumeq2dv 15689	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ ℂ) → Σ𝑘 ∈ (1...(𝑁 + 1))(((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1))))) = Σ𝑘 ∈ (1...(𝑁 + 1))(((((𝑆 D^𝑛 (𝑆 D 𝐹))‘(𝑘 − 1))‘𝐵) / (!‘(𝑘 − 1))) · ((𝑥 − 𝐵)↑(𝑘 − 1))))
184		0p1e1 12372	. . . . . . . 8 ⊢ (0 + 1) = 1
185	184	oveq1i 7436	. . . . . . 7 ⊢ ((0 + 1)...(𝑁 + 1)) = (1...(𝑁 + 1))
186	185	sumeq1i 15684	. . . . . 6 ⊢ Σ𝑘 ∈ ((0 + 1)...(𝑁 + 1))(((((𝑆 D^𝑛 (𝑆 D 𝐹))‘(𝑘 − 1))‘𝐵) / (!‘(𝑘 − 1))) · ((𝑥 − 𝐵)↑(𝑘 − 1))) = Σ𝑘 ∈ (1...(𝑁 + 1))(((((𝑆 D^𝑛 (𝑆 D 𝐹))‘(𝑘 − 1))‘𝐵) / (!‘(𝑘 − 1))) · ((𝑥 − 𝐵)↑(𝑘 − 1)))
187	183, 186	eqtr4di 2786	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ ℂ) → Σ𝑘 ∈ (1...(𝑁 + 1))(((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1))))) = Σ𝑘 ∈ ((0 + 1)...(𝑁 + 1))(((((𝑆 D^𝑛 (𝑆 D 𝐹))‘(𝑘 − 1))‘𝐵) / (!‘(𝑘 − 1))) · ((𝑥 − 𝐵)↑(𝑘 − 1))))
188	139	a1i 11	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ ℂ) → (1...(𝑁 + 1)) ⊆ (0...(𝑁 + 1)))
189	69	an32s 650	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (0...(𝑁 + 1))) → if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1)))) ∈ ℂ)
190	140, 189	sylan2 591	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1)))) ∈ ℂ)
191	142, 190	mulcld 11272	. . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (1...(𝑁 + 1))) → (((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1))))) ∈ ℂ)
192		eldif 3959	. . . . . . . . . 10 ⊢ (𝑘 ∈ ((0...(𝑁 + 1)) ∖ (1...(𝑁 + 1))) ↔ (𝑘 ∈ (0...(𝑁 + 1)) ∧ ¬ 𝑘 ∈ (1...(𝑁 + 1))))
193	59	biimpri 227	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑘 ∈ ℕ₀ ∧ 𝑘 ≠ 0) → 𝑘 ∈ ℕ)
194	16, 193	sylan 578	. . . . . . . . . . . . . . . 16 ⊢ ((𝑘 ∈ (0...(𝑁 + 1)) ∧ 𝑘 ≠ 0) → 𝑘 ∈ ℕ)
195		nnuz 12903	. . . . . . . . . . . . . . . 16 ⊢ ℕ = (ℤ_≥‘1)
196	194, 195	eleqtrdi 2839	. . . . . . . . . . . . . . 15 ⊢ ((𝑘 ∈ (0...(𝑁 + 1)) ∧ 𝑘 ≠ 0) → 𝑘 ∈ (ℤ_≥‘1))
197		elfzuz3 13538	. . . . . . . . . . . . . . . 16 ⊢ (𝑘 ∈ (0...(𝑁 + 1)) → (𝑁 + 1) ∈ (ℤ_≥‘𝑘))
198	197	adantr 479	. . . . . . . . . . . . . . 15 ⊢ ((𝑘 ∈ (0...(𝑁 + 1)) ∧ 𝑘 ≠ 0) → (𝑁 + 1) ∈ (ℤ_≥‘𝑘))
199		elfzuzb 13535	. . . . . . . . . . . . . . 15 ⊢ (𝑘 ∈ (1...(𝑁 + 1)) ↔ (𝑘 ∈ (ℤ_≥‘1) ∧ (𝑁 + 1) ∈ (ℤ_≥‘𝑘)))
200	196, 198, 199	sylanbrc 581	. . . . . . . . . . . . . 14 ⊢ ((𝑘 ∈ (0...(𝑁 + 1)) ∧ 𝑘 ≠ 0) → 𝑘 ∈ (1...(𝑁 + 1)))
201	200	ex 411	. . . . . . . . . . . . 13 ⊢ (𝑘 ∈ (0...(𝑁 + 1)) → (𝑘 ≠ 0 → 𝑘 ∈ (1...(𝑁 + 1))))
202	201	adantl 480	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (𝑘 ≠ 0 → 𝑘 ∈ (1...(𝑁 + 1))))
203	202	necon1bd 2955	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (¬ 𝑘 ∈ (1...(𝑁 + 1)) → 𝑘 = 0))
204	203	impr 453	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ (𝑘 ∈ (0...(𝑁 + 1)) ∧ ¬ 𝑘 ∈ (1...(𝑁 + 1)))) → 𝑘 = 0)
205	192, 204	sylan2b 592	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ ((0...(𝑁 + 1)) ∖ (1...(𝑁 + 1)))) → 𝑘 = 0)
206	205	iftrued 4540	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ ((0...(𝑁 + 1)) ∖ (1...(𝑁 + 1)))) → if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1)))) = 0)
207	206	oveq2d 7442	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ ((0...(𝑁 + 1)) ∖ (1...(𝑁 + 1)))) → (((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1))))) = (((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · 0))
208		eldifi 4127	. . . . . . . . 9 ⊢ (𝑘 ∈ ((0...(𝑁 + 1)) ∖ (1...(𝑁 + 1))) → 𝑘 ∈ (0...(𝑁 + 1)))
209	36	adantlr 713	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ (0...(𝑁 + 1))) → ((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) ∈ ℂ)
210	208, 209	sylan2 591	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ ((0...(𝑁 + 1)) ∖ (1...(𝑁 + 1)))) → ((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) ∈ ℂ)
211	210	mul01d 11451	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ ((0...(𝑁 + 1)) ∖ (1...(𝑁 + 1)))) → (((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · 0) = 0)
212	207, 211	eqtrd 2768	. . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ ℂ) ∧ 𝑘 ∈ ((0...(𝑁 + 1)) ∖ (1...(𝑁 + 1)))) → (((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1))))) = 0)
213		fzfid 13978	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ ℂ) → (0...(𝑁 + 1)) ∈ Fin)
214	188, 191, 212, 213	fsumss 15711	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ ℂ) → Σ𝑘 ∈ (1...(𝑁 + 1))(((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1))))) = Σ𝑘 ∈ (0...(𝑁 + 1))(((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1))))))
215	131, 187, 214	3eqtr2rd 2775	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ ℂ) → Σ𝑘 ∈ (0...(𝑁 + 1))(((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1))))) = Σ𝑗 ∈ (0...𝑁)(((((𝑆 D^𝑛 (𝑆 D 𝐹))‘𝑗)‘𝐵) / (!‘𝑗)) · ((𝑥 − 𝐵)↑𝑗)))
216	215	mpteq2dva 5252	. . 3 ⊢ (𝜑 → (𝑥 ∈ ℂ ↦ Σ𝑘 ∈ (0...(𝑁 + 1))(((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · if(𝑘 = 0, 0, (𝑘 · ((𝑥 − 𝐵)↑(𝑘 − 1)))))) = (𝑥 ∈ ℂ ↦ Σ𝑗 ∈ (0...𝑁)(((((𝑆 D^𝑛 (𝑆 D 𝐹))‘𝑗)‘𝐵) / (!‘𝑗)) · ((𝑥 − 𝐵)↑𝑗))))
217	100, 216	eqtrd 2768	. 2 ⊢ (𝜑 → (ℂ D (𝑥 ∈ ℂ ↦ Σ𝑘 ∈ (0...(𝑁 + 1))(((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · ((𝑥 − 𝐵)↑𝑘)))) = (𝑥 ∈ ℂ ↦ Σ𝑗 ∈ (0...𝑁)(((((𝑆 D^𝑛 (𝑆 D 𝐹))‘𝑗)‘𝐵) / (!‘𝑗)) · ((𝑥 − 𝐵)↑𝑗))))
218		eqid 2728	. . . 4 ⊢ ((𝑁 + 1)(𝑆 Tayl 𝐹)𝐵) = ((𝑁 + 1)(𝑆 Tayl 𝐹)𝐵)
219	9, 12, 13, 22, 28, 218	taylpfval 26319	. . 3 ⊢ (𝜑 → ((𝑁 + 1)(𝑆 Tayl 𝐹)𝐵) = (𝑥 ∈ ℂ ↦ Σ𝑘 ∈ (0...(𝑁 + 1))(((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · ((𝑥 − 𝐵)↑𝑘))))
220	219	oveq2d 7442	. 2 ⊢ (𝜑 → (ℂ D ((𝑁 + 1)(𝑆 Tayl 𝐹)𝐵)) = (ℂ D (𝑥 ∈ ℂ ↦ Σ𝑘 ∈ (0...(𝑁 + 1))(((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · ((𝑥 − 𝐵)↑𝑘)))))
221		eqid 2728	. . 3 ⊢ (𝑁(𝑆 Tayl (𝑆 D 𝐹))𝐵) = (𝑁(𝑆 Tayl (𝑆 D 𝐹))𝐵)
222	9, 106, 108, 20, 123, 221	taylpfval 26319	. 2 ⊢ (𝜑 → (𝑁(𝑆 Tayl (𝑆 D 𝐹))𝐵) = (𝑥 ∈ ℂ ↦ Σ𝑗 ∈ (0...𝑁)(((((𝑆 D^𝑛 (𝑆 D 𝐹))‘𝑗)‘𝐵) / (!‘𝑗)) · ((𝑥 − 𝐵)↑𝑗))))
223	217, 220, 222	3eqtr4d 2778	1 ⊢ (𝜑 → (ℂ D ((𝑁 + 1)(𝑆 Tayl 𝐹)𝐵)) = (𝑁(𝑆 Tayl (𝑆 D 𝐹))𝐵))

Colors of variables: wff setvar class

Syntax hints: ¬ wn 3 → wi 4 ∧ wa 394 ∧ w3a 1084 = wceq 1533 ∈ wcel 2098 ≠ wne 2937 Vcvv 3473 ∖ cdif 3946 ∩ cin 3948 ⊆ wss 3949 ifcif 4532 {cpr 4634 ↦ cmpt 5235 dom cdm 5682 ⟶wf 6549 ‘cfv 6553 (class class class)co 7426 ↑_pm cpm 8852 ℂcc 11144 ℝcr 11145 0cc0 11146 1c1 11147 + caddc 11149 · cmul 11151 − cmin 11482 / cdiv 11909 ℕcn 12250 ℕ₀cn0 12510 ℤcz 12596 ℤ_≥cuz 12860 [,]cicc 13367 ...cfz 13524 ↑cexp 14066 !cfa 14272 Σcsu 15672 TopOpenctopn 17410 ℂ_fldccnfld 21286 TopOnctopon 22832 D cdv 25812 D^𝑛 cdvn 25813 Tayl ctayl 26307

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1789 ax-4 1803 ax-5 1905 ax-6 1963 ax-7 2003 ax-8 2100 ax-9 2108 ax-10 2129 ax-11 2146 ax-12 2166 ax-ext 2699 ax-rep 5289 ax-sep 5303 ax-nul 5310 ax-pow 5369 ax-pr 5433 ax-un 7746 ax-inf2 9672 ax-cnex 11202 ax-resscn 11203 ax-1cn 11204 ax-icn 11205 ax-addcl 11206 ax-addrcl 11207 ax-mulcl 11208 ax-mulrcl 11209 ax-mulcom 11210 ax-addass 11211 ax-mulass 11212 ax-distr 11213 ax-i2m1 11214 ax-1ne0 11215 ax-1rid 11216 ax-rnegex 11217 ax-rrecex 11218 ax-cnre 11219 ax-pre-lttri 11220 ax-pre-lttrn 11221 ax-pre-ltadd 11222 ax-pre-mulgt0 11223 ax-pre-sup 11224 ax-addf 11225

This theorem depends on definitions: df-bi 206 df-an 395 df-or 846 df-3or 1085 df-3an 1086 df-tru 1536 df-fal 1546 df-ex 1774 df-nf 1778 df-sb 2060 df-mo 2529 df-eu 2558 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 3374 df-reu 3375 df-rab 3431 df-v 3475 df-sbc 3779 df-csb 3895 df-dif 3952 df-un 3954 df-in 3956 df-ss 3966 df-pss 3968 df-nul 4327 df-if 4533 df-pw 4608 df-sn 4633 df-pr 4635 df-tp 4637 df-op 4639 df-uni 4913 df-int 4954 df-iun 5002 df-iin 5003 df-br 5153 df-opab 5215 df-mpt 5236 df-tr 5270 df-id 5580 df-eprel 5586 df-po 5594 df-so 5595 df-fr 5637 df-se 5638 df-we 5639 df-xp 5688 df-rel 5689 df-cnv 5690 df-co 5691 df-dm 5692 df-rn 5693 df-res 5694 df-ima 5695 df-pred 6310 df-ord 6377 df-on 6378 df-lim 6379 df-suc 6380 df-iota 6505 df-fun 6555 df-fn 6556 df-f 6557 df-f1 6558 df-fo 6559 df-f1o 6560 df-fv 6561 df-isom 6562 df-riota 7382 df-ov 7429 df-oprab 7430 df-mpo 7431 df-of 7691 df-om 7877 df-1st 7999 df-2nd 8000 df-supp 8172 df-frecs 8293 df-wrecs 8324 df-recs 8398 df-rdg 8437 df-1o 8493 df-2o 8494 df-er 8731 df-map 8853 df-pm 8854 df-ixp 8923 df-en 8971 df-dom 8972 df-sdom 8973 df-fin 8974 df-fsupp 9394 df-fi 9442 df-sup 9473 df-inf 9474 df-oi 9541 df-card 9970 df-pnf 11288 df-mnf 11289 df-xr 11290 df-ltxr 11291 df-le 11292 df-sub 11484 df-neg 11485 df-div 11910 df-nn 12251 df-2 12313 df-3 12314 df-4 12315 df-5 12316 df-6 12317 df-7 12318 df-8 12319 df-9 12320 df-n0 12511 df-z 12597 df-dec 12716 df-uz 12861 df-q 12971 df-rp 13015 df-xneg 13132 df-xadd 13133 df-xmul 13134 df-icc 13371 df-fz 13525 df-fzo 13668 df-seq 14007 df-exp 14067 df-fac 14273 df-hash 14330 df-cj 15086 df-re 15087 df-im 15088 df-sqrt 15222 df-abs 15223 df-clim 15472 df-sum 15673 df-struct 17123 df-sets 17140 df-slot 17158 df-ndx 17170 df-base 17188 df-ress 17217 df-plusg 17253 df-mulr 17254 df-starv 17255 df-sca 17256 df-vsca 17257 df-ip 17258 df-tset 17259 df-ple 17260 df-ds 17262 df-unif 17263 df-hom 17264 df-cco 17265 df-rest 17411 df-topn 17412 df-0g 17430 df-gsum 17431 df-topgen 17432 df-pt 17433 df-prds 17436 df-xrs 17491 df-qtop 17496 df-imas 17497 df-xps 17499 df-mre 17573 df-mrc 17574 df-acs 17576 df-mgm 18607 df-sgrp 18686 df-mnd 18702 df-submnd 18748 df-grp 18900 df-minusg 18901 df-mulg 19031 df-cntz 19275 df-cmn 19744 df-abl 19745 df-mgp 20082 df-ur 20129 df-ring 20182 df-cring 20183 df-psmet 21278 df-xmet 21279 df-met 21280 df-bl 21281 df-mopn 21282 df-fbas 21283 df-fg 21284 df-cnfld 21287 df-top 22816 df-topon 22833 df-topsp 22855 df-bases 22869 df-cld 22943 df-ntr 22944 df-cls 22945 df-nei 23022 df-lp 23060 df-perf 23061 df-cn 23151 df-cnp 23152 df-haus 23239 df-tx 23486 df-hmeo 23679 df-fil 23770 df-fm 23862 df-flim 23863 df-flf 23864 df-tsms 24051 df-xms 24246 df-ms 24247 df-tms 24248 df-cncf 24818 df-limc 25815 df-dv 25816 df-dvn 25817 df-tayl 26309

This theorem is referenced by: dvntaylp 26326

W3C validator