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Theorem dvfsumabs 26001

Description: Compare a finite sum to an integral (the integral here is given as a function with a known derivative). (Contributed by Mario Carneiro, 14-May-2016.)

**Hypotheses**
Ref	Expression
dvfsumabs.m	⊢ (𝜑 → 𝑁 ∈ (ℤ_≥‘𝑀))
dvfsumabs.a	⊢ (𝜑 → (𝑥 ∈ (𝑀[,]𝑁) ↦ 𝐴) ∈ ((𝑀[,]𝑁)–cn→ℂ))
dvfsumabs.v	⊢ ((𝜑 ∧ 𝑥 ∈ (𝑀(,)𝑁)) → 𝐵 ∈ 𝑉)
dvfsumabs.b	⊢ (𝜑 → (ℝ D (𝑥 ∈ (𝑀(,)𝑁) ↦ 𝐴)) = (𝑥 ∈ (𝑀(,)𝑁) ↦ 𝐵))
dvfsumabs.c	⊢ (𝑥 = 𝑀 → 𝐴 = 𝐶)
dvfsumabs.d	⊢ (𝑥 = 𝑁 → 𝐴 = 𝐷)
dvfsumabs.x	⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → 𝑋 ∈ ℂ)
dvfsumabs.y	⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → 𝑌 ∈ ℝ)
dvfsumabs.l	⊢ ((𝜑 ∧ (𝑘 ∈ (𝑀..^𝑁) ∧ 𝑥 ∈ (𝑘(,)(𝑘 + 1)))) → (abs‘(𝑋 − 𝐵)) ≤ 𝑌)

**Assertion**
Ref	Expression
dvfsumabs	⊢ (𝜑 → (abs‘(Σ𝑘 ∈ (𝑀..^𝑁)𝑋 − (𝐷 − 𝐶))) ≤ Σ𝑘 ∈ (𝑀..^𝑁)𝑌)

Distinct variable groups: 𝐴,𝑘 𝑥,𝑘,𝑀 𝑘,𝑁,𝑥 𝜑,𝑘,𝑥 𝑥,𝑋 𝑥,𝐶 𝑥,𝐷 𝑥,𝑉 𝑥,𝑌 Allowed substitution hints: 𝐴(𝑥) 𝐵(𝑥,𝑘) 𝐶(𝑘) 𝐷(𝑘) 𝑉(𝑘) 𝑋(𝑘) 𝑌(𝑘)

Proof of Theorem dvfsumabs Dummy variable 𝑦 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		fzofi 13925	. . . . . 6 ⊢ (𝑀..^𝑁) ∈ Fin
2	1	a1i 11	. . . . 5 ⊢ (𝜑 → (𝑀..^𝑁) ∈ Fin)
3		dvfsumabs.x	. . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → 𝑋 ∈ ℂ)
4		dvfsumabs.m	. . . . . . . . . . . . 13 ⊢ (𝜑 → 𝑁 ∈ (ℤ_≥‘𝑀))
5		eluzel2 12782	. . . . . . . . . . . . 13 ⊢ (𝑁 ∈ (ℤ_≥‘𝑀) → 𝑀 ∈ ℤ)
6	4, 5	syl 17	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝑀 ∈ ℤ)
7		eluzelz 12787	. . . . . . . . . . . . 13 ⊢ (𝑁 ∈ (ℤ_≥‘𝑀) → 𝑁 ∈ ℤ)
8	4, 7	syl 17	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝑁 ∈ ℤ)
9		fzval2 13453	. . . . . . . . . . . 12 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝑀...𝑁) = ((𝑀[,]𝑁) ∩ ℤ))
10	6, 8, 9	syl2anc 585	. . . . . . . . . . 11 ⊢ (𝜑 → (𝑀...𝑁) = ((𝑀[,]𝑁) ∩ ℤ))
11		inss1 4178	. . . . . . . . . . 11 ⊢ ((𝑀[,]𝑁) ∩ ℤ) ⊆ (𝑀[,]𝑁)
12	10, 11	eqsstrdi 3967	. . . . . . . . . 10 ⊢ (𝜑 → (𝑀...𝑁) ⊆ (𝑀[,]𝑁))
13	12	sselda 3922	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑦 ∈ (𝑀...𝑁)) → 𝑦 ∈ (𝑀[,]𝑁))
14		dvfsumabs.a	. . . . . . . . . . . 12 ⊢ (𝜑 → (𝑥 ∈ (𝑀[,]𝑁) ↦ 𝐴) ∈ ((𝑀[,]𝑁)–cn→ℂ))
15		cncff 24869	. . . . . . . . . . . 12 ⊢ ((𝑥 ∈ (𝑀[,]𝑁) ↦ 𝐴) ∈ ((𝑀[,]𝑁)–cn→ℂ) → (𝑥 ∈ (𝑀[,]𝑁) ↦ 𝐴):(𝑀[,]𝑁)⟶ℂ)
16	14, 15	syl 17	. . . . . . . . . . 11 ⊢ (𝜑 → (𝑥 ∈ (𝑀[,]𝑁) ↦ 𝐴):(𝑀[,]𝑁)⟶ℂ)
17		eqid 2737	. . . . . . . . . . . 12 ⊢ (𝑥 ∈ (𝑀[,]𝑁) ↦ 𝐴) = (𝑥 ∈ (𝑀[,]𝑁) ↦ 𝐴)
18	17	fmpt 7054	. . . . . . . . . . 11 ⊢ (∀𝑥 ∈ (𝑀[,]𝑁)𝐴 ∈ ℂ ↔ (𝑥 ∈ (𝑀[,]𝑁) ↦ 𝐴):(𝑀[,]𝑁)⟶ℂ)
19	16, 18	sylibr 234	. . . . . . . . . 10 ⊢ (𝜑 → ∀𝑥 ∈ (𝑀[,]𝑁)𝐴 ∈ ℂ)
20		nfcsb1v 3862	. . . . . . . . . . . 12 ⊢ Ⅎ𝑥⦋𝑦 / 𝑥⦌𝐴
21	20	nfel1 2916	. . . . . . . . . . 11 ⊢ Ⅎ𝑥⦋𝑦 / 𝑥⦌𝐴 ∈ ℂ
22		csbeq1a 3852	. . . . . . . . . . . 12 ⊢ (𝑥 = 𝑦 → 𝐴 = ⦋𝑦 / 𝑥⦌𝐴)
23	22	eleq1d 2822	. . . . . . . . . . 11 ⊢ (𝑥 = 𝑦 → (𝐴 ∈ ℂ ↔ ⦋𝑦 / 𝑥⦌𝐴 ∈ ℂ))
24	21, 23	rspc 3553	. . . . . . . . . 10 ⊢ (𝑦 ∈ (𝑀[,]𝑁) → (∀𝑥 ∈ (𝑀[,]𝑁)𝐴 ∈ ℂ → ⦋𝑦 / 𝑥⦌𝐴 ∈ ℂ))
25	19, 24	mpan9 506	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑦 ∈ (𝑀[,]𝑁)) → ⦋𝑦 / 𝑥⦌𝐴 ∈ ℂ)
26	13, 25	syldan 592	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑦 ∈ (𝑀...𝑁)) → ⦋𝑦 / 𝑥⦌𝐴 ∈ ℂ)
27	26	ralrimiva 3130	. . . . . . 7 ⊢ (𝜑 → ∀𝑦 ∈ (𝑀...𝑁)⦋𝑦 / 𝑥⦌𝐴 ∈ ℂ)
28		fzofzp1 13708	. . . . . . 7 ⊢ (𝑘 ∈ (𝑀..^𝑁) → (𝑘 + 1) ∈ (𝑀...𝑁))
29		csbeq1 3841	. . . . . . . . 9 ⊢ (𝑦 = (𝑘 + 1) → ⦋𝑦 / 𝑥⦌𝐴 = ⦋(𝑘 + 1) / 𝑥⦌𝐴)
30	29	eleq1d 2822	. . . . . . . 8 ⊢ (𝑦 = (𝑘 + 1) → (⦋𝑦 / 𝑥⦌𝐴 ∈ ℂ ↔ ⦋(𝑘 + 1) / 𝑥⦌𝐴 ∈ ℂ))
31	30	rspccva 3564	. . . . . . 7 ⊢ ((∀𝑦 ∈ (𝑀...𝑁)⦋𝑦 / 𝑥⦌𝐴 ∈ ℂ ∧ (𝑘 + 1) ∈ (𝑀...𝑁)) → ⦋(𝑘 + 1) / 𝑥⦌𝐴 ∈ ℂ)
32	27, 28, 31	syl2an 597	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → ⦋(𝑘 + 1) / 𝑥⦌𝐴 ∈ ℂ)
33		elfzofz 13619	. . . . . . 7 ⊢ (𝑘 ∈ (𝑀..^𝑁) → 𝑘 ∈ (𝑀...𝑁))
34		csbeq1 3841	. . . . . . . . 9 ⊢ (𝑦 = 𝑘 → ⦋𝑦 / 𝑥⦌𝐴 = ⦋𝑘 / 𝑥⦌𝐴)
35	34	eleq1d 2822	. . . . . . . 8 ⊢ (𝑦 = 𝑘 → (⦋𝑦 / 𝑥⦌𝐴 ∈ ℂ ↔ ⦋𝑘 / 𝑥⦌𝐴 ∈ ℂ))
36	35	rspccva 3564	. . . . . . 7 ⊢ ((∀𝑦 ∈ (𝑀...𝑁)⦋𝑦 / 𝑥⦌𝐴 ∈ ℂ ∧ 𝑘 ∈ (𝑀...𝑁)) → ⦋𝑘 / 𝑥⦌𝐴 ∈ ℂ)
37	27, 33, 36	syl2an 597	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → ⦋𝑘 / 𝑥⦌𝐴 ∈ ℂ)
38	32, 37	subcld 11494	. . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (⦋(𝑘 + 1) / 𝑥⦌𝐴 − ⦋𝑘 / 𝑥⦌𝐴) ∈ ℂ)
39	2, 3, 38	fsumsub 15739	. . . 4 ⊢ (𝜑 → Σ𝑘 ∈ (𝑀..^𝑁)(𝑋 − (⦋(𝑘 + 1) / 𝑥⦌𝐴 − ⦋𝑘 / 𝑥⦌𝐴)) = (Σ𝑘 ∈ (𝑀..^𝑁)𝑋 − Σ𝑘 ∈ (𝑀..^𝑁)(⦋(𝑘 + 1) / 𝑥⦌𝐴 − ⦋𝑘 / 𝑥⦌𝐴)))
40		vex 3434	. . . . . . . 8 ⊢ 𝑦 ∈ V
41	40	a1i 11	. . . . . . 7 ⊢ (𝑦 = 𝑀 → 𝑦 ∈ V)
42		eqeq2 2749	. . . . . . . . 9 ⊢ (𝑦 = 𝑀 → (𝑥 = 𝑦 ↔ 𝑥 = 𝑀))
43	42	biimpa 476	. . . . . . . 8 ⊢ ((𝑦 = 𝑀 ∧ 𝑥 = 𝑦) → 𝑥 = 𝑀)
44		dvfsumabs.c	. . . . . . . 8 ⊢ (𝑥 = 𝑀 → 𝐴 = 𝐶)
45	43, 44	syl 17	. . . . . . 7 ⊢ ((𝑦 = 𝑀 ∧ 𝑥 = 𝑦) → 𝐴 = 𝐶)
46	41, 45	csbied 3874	. . . . . 6 ⊢ (𝑦 = 𝑀 → ⦋𝑦 / 𝑥⦌𝐴 = 𝐶)
47	40	a1i 11	. . . . . . 7 ⊢ (𝑦 = 𝑁 → 𝑦 ∈ V)
48		eqeq2 2749	. . . . . . . . 9 ⊢ (𝑦 = 𝑁 → (𝑥 = 𝑦 ↔ 𝑥 = 𝑁))
49	48	biimpa 476	. . . . . . . 8 ⊢ ((𝑦 = 𝑁 ∧ 𝑥 = 𝑦) → 𝑥 = 𝑁)
50		dvfsumabs.d	. . . . . . . 8 ⊢ (𝑥 = 𝑁 → 𝐴 = 𝐷)
51	49, 50	syl 17	. . . . . . 7 ⊢ ((𝑦 = 𝑁 ∧ 𝑥 = 𝑦) → 𝐴 = 𝐷)
52	47, 51	csbied 3874	. . . . . 6 ⊢ (𝑦 = 𝑁 → ⦋𝑦 / 𝑥⦌𝐴 = 𝐷)
53	34, 29, 46, 52, 4, 26	telfsumo2 15755	. . . . 5 ⊢ (𝜑 → Σ𝑘 ∈ (𝑀..^𝑁)(⦋(𝑘 + 1) / 𝑥⦌𝐴 − ⦋𝑘 / 𝑥⦌𝐴) = (𝐷 − 𝐶))
54	53	oveq2d 7374	. . . 4 ⊢ (𝜑 → (Σ𝑘 ∈ (𝑀..^𝑁)𝑋 − Σ𝑘 ∈ (𝑀..^𝑁)(⦋(𝑘 + 1) / 𝑥⦌𝐴 − ⦋𝑘 / 𝑥⦌𝐴)) = (Σ𝑘 ∈ (𝑀..^𝑁)𝑋 − (𝐷 − 𝐶)))
55	39, 54	eqtrd 2772	. . 3 ⊢ (𝜑 → Σ𝑘 ∈ (𝑀..^𝑁)(𝑋 − (⦋(𝑘 + 1) / 𝑥⦌𝐴 − ⦋𝑘 / 𝑥⦌𝐴)) = (Σ𝑘 ∈ (𝑀..^𝑁)𝑋 − (𝐷 − 𝐶)))
56	55	fveq2d 6836	. 2 ⊢ (𝜑 → (abs‘Σ𝑘 ∈ (𝑀..^𝑁)(𝑋 − (⦋(𝑘 + 1) / 𝑥⦌𝐴 − ⦋𝑘 / 𝑥⦌𝐴))) = (abs‘(Σ𝑘 ∈ (𝑀..^𝑁)𝑋 − (𝐷 − 𝐶))))
57	3, 38	subcld 11494	. . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑋 − (⦋(𝑘 + 1) / 𝑥⦌𝐴 − ⦋𝑘 / 𝑥⦌𝐴)) ∈ ℂ)
58	2, 57	fsumcl 15684	. . . 4 ⊢ (𝜑 → Σ𝑘 ∈ (𝑀..^𝑁)(𝑋 − (⦋(𝑘 + 1) / 𝑥⦌𝐴 − ⦋𝑘 / 𝑥⦌𝐴)) ∈ ℂ)
59	58	abscld 15390	. . 3 ⊢ (𝜑 → (abs‘Σ𝑘 ∈ (𝑀..^𝑁)(𝑋 − (⦋(𝑘 + 1) / 𝑥⦌𝐴 − ⦋𝑘 / 𝑥⦌𝐴))) ∈ ℝ)
60	57	abscld 15390	. . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (abs‘(𝑋 − (⦋(𝑘 + 1) / 𝑥⦌𝐴 − ⦋𝑘 / 𝑥⦌𝐴))) ∈ ℝ)
61	2, 60	fsumrecl 15685	. . 3 ⊢ (𝜑 → Σ𝑘 ∈ (𝑀..^𝑁)(abs‘(𝑋 − (⦋(𝑘 + 1) / 𝑥⦌𝐴 − ⦋𝑘 / 𝑥⦌𝐴))) ∈ ℝ)
62		dvfsumabs.y	. . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → 𝑌 ∈ ℝ)
63	2, 62	fsumrecl 15685	. . 3 ⊢ (𝜑 → Σ𝑘 ∈ (𝑀..^𝑁)𝑌 ∈ ℝ)
64	2, 57	fsumabs 15753	. . 3 ⊢ (𝜑 → (abs‘Σ𝑘 ∈ (𝑀..^𝑁)(𝑋 − (⦋(𝑘 + 1) / 𝑥⦌𝐴 − ⦋𝑘 / 𝑥⦌𝐴))) ≤ Σ𝑘 ∈ (𝑀..^𝑁)(abs‘(𝑋 − (⦋(𝑘 + 1) / 𝑥⦌𝐴 − ⦋𝑘 / 𝑥⦌𝐴))))
65		elfzoelz 13602	. . . . . . . . . 10 ⊢ (𝑘 ∈ (𝑀..^𝑁) → 𝑘 ∈ ℤ)
66	65	adantl 481	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → 𝑘 ∈ ℤ)
67	66	zred 12622	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → 𝑘 ∈ ℝ)
68	67	rexrd 11184	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → 𝑘 ∈ ℝ^*)
69		peano2re 11308	. . . . . . . . 9 ⊢ (𝑘 ∈ ℝ → (𝑘 + 1) ∈ ℝ)
70	67, 69	syl 17	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑘 + 1) ∈ ℝ)
71	70	rexrd 11184	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑘 + 1) ∈ ℝ^*)
72	67	lep1d 12076	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → 𝑘 ≤ (𝑘 + 1))
73		ubicc2 13407	. . . . . . 7 ⊢ ((𝑘 ∈ ℝ^* ∧ (𝑘 + 1) ∈ ℝ^* ∧ 𝑘 ≤ (𝑘 + 1)) → (𝑘 + 1) ∈ (𝑘[,](𝑘 + 1)))
74	68, 71, 72, 73	syl3anc 1374	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑘 + 1) ∈ (𝑘[,](𝑘 + 1)))
75		lbicc2 13406	. . . . . . 7 ⊢ ((𝑘 ∈ ℝ^* ∧ (𝑘 + 1) ∈ ℝ^* ∧ 𝑘 ≤ (𝑘 + 1)) → 𝑘 ∈ (𝑘[,](𝑘 + 1)))
76	68, 71, 72, 75	syl3anc 1374	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → 𝑘 ∈ (𝑘[,](𝑘 + 1)))
77	6	zred 12622	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝑀 ∈ ℝ)
78	77	adantr 480	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → 𝑀 ∈ ℝ)
79	8	zred 12622	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝑁 ∈ ℝ)
80	79	adantr 480	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → 𝑁 ∈ ℝ)
81		elfzole1 13611	. . . . . . . . . . . 12 ⊢ (𝑘 ∈ (𝑀..^𝑁) → 𝑀 ≤ 𝑘)
82	81	adantl 481	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → 𝑀 ≤ 𝑘)
83	28	adantl 481	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑘 + 1) ∈ (𝑀...𝑁))
84		elfzle2 13471	. . . . . . . . . . . 12 ⊢ ((𝑘 + 1) ∈ (𝑀...𝑁) → (𝑘 + 1) ≤ 𝑁)
85	83, 84	syl 17	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑘 + 1) ≤ 𝑁)
86		iccss 13356	. . . . . . . . . . 11 ⊢ (((𝑀 ∈ ℝ ∧ 𝑁 ∈ ℝ) ∧ (𝑀 ≤ 𝑘 ∧ (𝑘 + 1) ≤ 𝑁)) → (𝑘[,](𝑘 + 1)) ⊆ (𝑀[,]𝑁))
87	78, 80, 82, 85, 86	syl22anc 839	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑘[,](𝑘 + 1)) ⊆ (𝑀[,]𝑁))
88	87	resmptd 5997	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → ((𝑥 ∈ (𝑀[,]𝑁) ↦ ((𝑋 · 𝑥) − 𝐴)) ↾ (𝑘[,](𝑘 + 1))) = (𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴)))
89		eqid 2737	. . . . . . . . . . 11 ⊢ (TopOpen‘ℂ_fld) = (TopOpen‘ℂ_fld)
90	89	subcn 24841	. . . . . . . . . . . 12 ⊢ − ∈ (((TopOpen‘ℂ_fld) ×_t (TopOpen‘ℂ_fld)) Cn (TopOpen‘ℂ_fld))
91	90	a1i 11	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → − ∈ (((TopOpen‘ℂ_fld) ×_t (TopOpen‘ℂ_fld)) Cn (TopOpen‘ℂ_fld)))
92		iccssre 13371	. . . . . . . . . . . . . . . 16 ⊢ ((𝑀 ∈ ℝ ∧ 𝑁 ∈ ℝ) → (𝑀[,]𝑁) ⊆ ℝ)
93	77, 79, 92	syl2anc 585	. . . . . . . . . . . . . . 15 ⊢ (𝜑 → (𝑀[,]𝑁) ⊆ ℝ)
94	93	adantr 480	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑀[,]𝑁) ⊆ ℝ)
95		ax-resscn 11084	. . . . . . . . . . . . . 14 ⊢ ℝ ⊆ ℂ
96	94, 95	sstrdi 3935	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑀[,]𝑁) ⊆ ℂ)
97		ssid 3945	. . . . . . . . . . . . . 14 ⊢ ℂ ⊆ ℂ
98	97	a1i 11	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → ℂ ⊆ ℂ)
99		cncfmptc 24888	. . . . . . . . . . . . 13 ⊢ ((𝑋 ∈ ℂ ∧ (𝑀[,]𝑁) ⊆ ℂ ∧ ℂ ⊆ ℂ) → (𝑥 ∈ (𝑀[,]𝑁) ↦ 𝑋) ∈ ((𝑀[,]𝑁)–cn→ℂ))
100	3, 96, 98, 99	syl3anc 1374	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑥 ∈ (𝑀[,]𝑁) ↦ 𝑋) ∈ ((𝑀[,]𝑁)–cn→ℂ))
101		cncfmptid 24889	. . . . . . . . . . . . 13 ⊢ (((𝑀[,]𝑁) ⊆ ℂ ∧ ℂ ⊆ ℂ) → (𝑥 ∈ (𝑀[,]𝑁) ↦ 𝑥) ∈ ((𝑀[,]𝑁)–cn→ℂ))
102	96, 97, 101	sylancl 587	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑥 ∈ (𝑀[,]𝑁) ↦ 𝑥) ∈ ((𝑀[,]𝑁)–cn→ℂ))
103	100, 102	mulcncf 25422	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑥 ∈ (𝑀[,]𝑁) ↦ (𝑋 · 𝑥)) ∈ ((𝑀[,]𝑁)–cn→ℂ))
104	14	adantr 480	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑥 ∈ (𝑀[,]𝑁) ↦ 𝐴) ∈ ((𝑀[,]𝑁)–cn→ℂ))
105	89, 91, 103, 104	cncfmpt2f 24891	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑥 ∈ (𝑀[,]𝑁) ↦ ((𝑋 · 𝑥) − 𝐴)) ∈ ((𝑀[,]𝑁)–cn→ℂ))
106		rescncf 24873	. . . . . . . . . 10 ⊢ ((𝑘[,](𝑘 + 1)) ⊆ (𝑀[,]𝑁) → ((𝑥 ∈ (𝑀[,]𝑁) ↦ ((𝑋 · 𝑥) − 𝐴)) ∈ ((𝑀[,]𝑁)–cn→ℂ) → ((𝑥 ∈ (𝑀[,]𝑁) ↦ ((𝑋 · 𝑥) − 𝐴)) ↾ (𝑘[,](𝑘 + 1))) ∈ ((𝑘[,](𝑘 + 1))–cn→ℂ)))
107	87, 105, 106	sylc 65	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → ((𝑥 ∈ (𝑀[,]𝑁) ↦ ((𝑋 · 𝑥) − 𝐴)) ↾ (𝑘[,](𝑘 + 1))) ∈ ((𝑘[,](𝑘 + 1))–cn→ℂ))
108	88, 107	eqeltrrd 2838	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴)) ∈ ((𝑘[,](𝑘 + 1))–cn→ℂ))
109	95	a1i 11	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → ℝ ⊆ ℂ)
110	87, 94	sstrd 3933	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑘[,](𝑘 + 1)) ⊆ ℝ)
111	87	sselda 3922	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) ∧ 𝑥 ∈ (𝑘[,](𝑘 + 1))) → 𝑥 ∈ (𝑀[,]𝑁))
112	3	adantr 480	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) ∧ 𝑥 ∈ (𝑀[,]𝑁)) → 𝑋 ∈ ℂ)
113	96	sselda 3922	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) ∧ 𝑥 ∈ (𝑀[,]𝑁)) → 𝑥 ∈ ℂ)
114	112, 113	mulcld 11154	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) ∧ 𝑥 ∈ (𝑀[,]𝑁)) → (𝑋 · 𝑥) ∈ ℂ)
115	19	r19.21bi 3230	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑥 ∈ (𝑀[,]𝑁)) → 𝐴 ∈ ℂ)
116	115	adantlr 716	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) ∧ 𝑥 ∈ (𝑀[,]𝑁)) → 𝐴 ∈ ℂ)
117	114, 116	subcld 11494	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) ∧ 𝑥 ∈ (𝑀[,]𝑁)) → ((𝑋 · 𝑥) − 𝐴) ∈ ℂ)
118	111, 117	syldan 592	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) ∧ 𝑥 ∈ (𝑘[,](𝑘 + 1))) → ((𝑋 · 𝑥) − 𝐴) ∈ ℂ)
119		tgioo4 24779	. . . . . . . . . . . 12 ⊢ (topGen‘ran (,)) = ((TopOpen‘ℂ_fld) ↾_t ℝ)
120		iccntr 24796	. . . . . . . . . . . . 13 ⊢ ((𝑘 ∈ ℝ ∧ (𝑘 + 1) ∈ ℝ) → ((int‘(topGen‘ran (,)))‘(𝑘[,](𝑘 + 1))) = (𝑘(,)(𝑘 + 1)))
121	67, 70, 120	syl2anc 585	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → ((int‘(topGen‘ran (,)))‘(𝑘[,](𝑘 + 1))) = (𝑘(,)(𝑘 + 1)))
122	109, 110, 118, 119, 89, 121	dvmptntr 25947	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (ℝ D (𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴))) = (ℝ D (𝑥 ∈ (𝑘(,)(𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴))))
123		reelprrecn 11119	. . . . . . . . . . . . 13 ⊢ ℝ ∈ {ℝ, ℂ}
124	123	a1i 11	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → ℝ ∈ {ℝ, ℂ})
125		ioossicc 13375	. . . . . . . . . . . . . 14 ⊢ (𝑀(,)𝑁) ⊆ (𝑀[,]𝑁)
126	125	sseli 3918	. . . . . . . . . . . . 13 ⊢ (𝑥 ∈ (𝑀(,)𝑁) → 𝑥 ∈ (𝑀[,]𝑁))
127	126, 117	sylan2 594	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) ∧ 𝑥 ∈ (𝑀(,)𝑁)) → ((𝑋 · 𝑥) − 𝐴) ∈ ℂ)
128		ovex 7391	. . . . . . . . . . . . 13 ⊢ (𝑋 − 𝐵) ∈ V
129	128	a1i 11	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) ∧ 𝑥 ∈ (𝑀(,)𝑁)) → (𝑋 − 𝐵) ∈ V)
130	126, 114	sylan2 594	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) ∧ 𝑥 ∈ (𝑀(,)𝑁)) → (𝑋 · 𝑥) ∈ ℂ)
131	3	adantr 480	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) ∧ 𝑥 ∈ (𝑀(,)𝑁)) → 𝑋 ∈ ℂ)
132	125, 96	sstrid 3934	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑀(,)𝑁) ⊆ ℂ)
133	132	sselda 3922	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) ∧ 𝑥 ∈ (𝑀(,)𝑁)) → 𝑥 ∈ ℂ)
134		1cnd 11128	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) ∧ 𝑥 ∈ (𝑀(,)𝑁)) → 1 ∈ ℂ)
135	109	sselda 3922	. . . . . . . . . . . . . . . 16 ⊢ (((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) ∧ 𝑥 ∈ ℝ) → 𝑥 ∈ ℂ)
136		1cnd 11128	. . . . . . . . . . . . . . . 16 ⊢ (((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) ∧ 𝑥 ∈ ℝ) → 1 ∈ ℂ)
137	124	dvmptid 25933	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (ℝ D (𝑥 ∈ ℝ ↦ 𝑥)) = (𝑥 ∈ ℝ ↦ 1))
138	125, 94	sstrid 3934	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑀(,)𝑁) ⊆ ℝ)
139		iooretop 24739	. . . . . . . . . . . . . . . . 17 ⊢ (𝑀(,)𝑁) ∈ (topGen‘ran (,))
140	139	a1i 11	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑀(,)𝑁) ∈ (topGen‘ran (,)))
141	124, 135, 136, 137, 138, 119, 89, 140	dvmptres 25939	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (ℝ D (𝑥 ∈ (𝑀(,)𝑁) ↦ 𝑥)) = (𝑥 ∈ (𝑀(,)𝑁) ↦ 1))
142	124, 133, 134, 141, 3	dvmptcmul 25940	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (ℝ D (𝑥 ∈ (𝑀(,)𝑁) ↦ (𝑋 · 𝑥))) = (𝑥 ∈ (𝑀(,)𝑁) ↦ (𝑋 · 1)))
143	3	mulridd 11151	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑋 · 1) = 𝑋)
144	143	mpteq2dv 5180	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑥 ∈ (𝑀(,)𝑁) ↦ (𝑋 · 1)) = (𝑥 ∈ (𝑀(,)𝑁) ↦ 𝑋))
145	142, 144	eqtrd 2772	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (ℝ D (𝑥 ∈ (𝑀(,)𝑁) ↦ (𝑋 · 𝑥))) = (𝑥 ∈ (𝑀(,)𝑁) ↦ 𝑋))
146	126, 116	sylan2 594	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) ∧ 𝑥 ∈ (𝑀(,)𝑁)) → 𝐴 ∈ ℂ)
147		dvfsumabs.v	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑥 ∈ (𝑀(,)𝑁)) → 𝐵 ∈ 𝑉)
148	147	adantlr 716	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) ∧ 𝑥 ∈ (𝑀(,)𝑁)) → 𝐵 ∈ 𝑉)
149		dvfsumabs.b	. . . . . . . . . . . . . 14 ⊢ (𝜑 → (ℝ D (𝑥 ∈ (𝑀(,)𝑁) ↦ 𝐴)) = (𝑥 ∈ (𝑀(,)𝑁) ↦ 𝐵))
150	149	adantr 480	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (ℝ D (𝑥 ∈ (𝑀(,)𝑁) ↦ 𝐴)) = (𝑥 ∈ (𝑀(,)𝑁) ↦ 𝐵))
151	124, 130, 131, 145, 146, 148, 150	dvmptsub 25943	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (ℝ D (𝑥 ∈ (𝑀(,)𝑁) ↦ ((𝑋 · 𝑥) − 𝐴))) = (𝑥 ∈ (𝑀(,)𝑁) ↦ (𝑋 − 𝐵)))
152	78	rexrd 11184	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → 𝑀 ∈ ℝ^*)
153		iooss1 13322	. . . . . . . . . . . . . 14 ⊢ ((𝑀 ∈ ℝ^* ∧ 𝑀 ≤ 𝑘) → (𝑘(,)(𝑘 + 1)) ⊆ (𝑀(,)(𝑘 + 1)))
154	152, 82, 153	syl2anc 585	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑘(,)(𝑘 + 1)) ⊆ (𝑀(,)(𝑘 + 1)))
155	80	rexrd 11184	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → 𝑁 ∈ ℝ^*)
156		iooss2 13323	. . . . . . . . . . . . . 14 ⊢ ((𝑁 ∈ ℝ^* ∧ (𝑘 + 1) ≤ 𝑁) → (𝑀(,)(𝑘 + 1)) ⊆ (𝑀(,)𝑁))
157	155, 85, 156	syl2anc 585	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑀(,)(𝑘 + 1)) ⊆ (𝑀(,)𝑁))
158	154, 157	sstrd 3933	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑘(,)(𝑘 + 1)) ⊆ (𝑀(,)𝑁))
159		iooretop 24739	. . . . . . . . . . . . 13 ⊢ (𝑘(,)(𝑘 + 1)) ∈ (topGen‘ran (,))
160	159	a1i 11	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑘(,)(𝑘 + 1)) ∈ (topGen‘ran (,)))
161	124, 127, 129, 151, 158, 119, 89, 160	dvmptres 25939	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (ℝ D (𝑥 ∈ (𝑘(,)(𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴))) = (𝑥 ∈ (𝑘(,)(𝑘 + 1)) ↦ (𝑋 − 𝐵)))
162	122, 161	eqtrd 2772	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (ℝ D (𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴))) = (𝑥 ∈ (𝑘(,)(𝑘 + 1)) ↦ (𝑋 − 𝐵)))
163	162	dmeqd 5852	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → dom (ℝ D (𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴))) = dom (𝑥 ∈ (𝑘(,)(𝑘 + 1)) ↦ (𝑋 − 𝐵)))
164		eqid 2737	. . . . . . . . . 10 ⊢ (𝑥 ∈ (𝑘(,)(𝑘 + 1)) ↦ (𝑋 − 𝐵)) = (𝑥 ∈ (𝑘(,)(𝑘 + 1)) ↦ (𝑋 − 𝐵))
165	128, 164	dmmpti 6634	. . . . . . . . 9 ⊢ dom (𝑥 ∈ (𝑘(,)(𝑘 + 1)) ↦ (𝑋 − 𝐵)) = (𝑘(,)(𝑘 + 1))
166	163, 165	eqtrdi 2788	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → dom (ℝ D (𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴))) = (𝑘(,)(𝑘 + 1)))
167	162	adantr 480	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) ∧ 𝑥 ∈ (𝑘(,)(𝑘 + 1))) → (ℝ D (𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴))) = (𝑥 ∈ (𝑘(,)(𝑘 + 1)) ↦ (𝑋 − 𝐵)))
168	167	fveq1d 6834	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) ∧ 𝑥 ∈ (𝑘(,)(𝑘 + 1))) → ((ℝ D (𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴)))‘𝑥) = ((𝑥 ∈ (𝑘(,)(𝑘 + 1)) ↦ (𝑋 − 𝐵))‘𝑥))
169		simpr 484	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) ∧ 𝑥 ∈ (𝑘(,)(𝑘 + 1))) → 𝑥 ∈ (𝑘(,)(𝑘 + 1)))
170	164	fvmpt2 6951	. . . . . . . . . . . . . 14 ⊢ ((𝑥 ∈ (𝑘(,)(𝑘 + 1)) ∧ (𝑋 − 𝐵) ∈ V) → ((𝑥 ∈ (𝑘(,)(𝑘 + 1)) ↦ (𝑋 − 𝐵))‘𝑥) = (𝑋 − 𝐵))
171	169, 128, 170	sylancl 587	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) ∧ 𝑥 ∈ (𝑘(,)(𝑘 + 1))) → ((𝑥 ∈ (𝑘(,)(𝑘 + 1)) ↦ (𝑋 − 𝐵))‘𝑥) = (𝑋 − 𝐵))
172	168, 171	eqtrd 2772	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) ∧ 𝑥 ∈ (𝑘(,)(𝑘 + 1))) → ((ℝ D (𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴)))‘𝑥) = (𝑋 − 𝐵))
173	172	fveq2d 6836	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) ∧ 𝑥 ∈ (𝑘(,)(𝑘 + 1))) → (abs‘((ℝ D (𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴)))‘𝑥)) = (abs‘(𝑋 − 𝐵)))
174		dvfsumabs.l	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ (𝑘 ∈ (𝑀..^𝑁) ∧ 𝑥 ∈ (𝑘(,)(𝑘 + 1)))) → (abs‘(𝑋 − 𝐵)) ≤ 𝑌)
175	174	anassrs 467	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) ∧ 𝑥 ∈ (𝑘(,)(𝑘 + 1))) → (abs‘(𝑋 − 𝐵)) ≤ 𝑌)
176	173, 175	eqbrtrd 5108	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) ∧ 𝑥 ∈ (𝑘(,)(𝑘 + 1))) → (abs‘((ℝ D (𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴)))‘𝑥)) ≤ 𝑌)
177	176	ralrimiva 3130	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → ∀𝑥 ∈ (𝑘(,)(𝑘 + 1))(abs‘((ℝ D (𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴)))‘𝑥)) ≤ 𝑌)
178		nfcv 2899	. . . . . . . . . . . 12 ⊢ Ⅎ𝑥abs
179		nfcv 2899	. . . . . . . . . . . . . 14 ⊢ Ⅎ𝑥ℝ
180		nfcv 2899	. . . . . . . . . . . . . 14 ⊢ Ⅎ𝑥 D
181		nfmpt1 5185	. . . . . . . . . . . . . 14 ⊢ Ⅎ𝑥(𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴))
182	179, 180, 181	nfov 7388	. . . . . . . . . . . . 13 ⊢ Ⅎ𝑥(ℝ D (𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴)))
183		nfcv 2899	. . . . . . . . . . . . 13 ⊢ Ⅎ𝑥𝑦
184	182, 183	nffv 6842	. . . . . . . . . . . 12 ⊢ Ⅎ𝑥((ℝ D (𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴)))‘𝑦)
185	178, 184	nffv 6842	. . . . . . . . . . 11 ⊢ Ⅎ𝑥(abs‘((ℝ D (𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴)))‘𝑦))
186		nfcv 2899	. . . . . . . . . . 11 ⊢ Ⅎ𝑥 ≤
187		nfcv 2899	. . . . . . . . . . 11 ⊢ Ⅎ𝑥𝑌
188	185, 186, 187	nfbr 5133	. . . . . . . . . 10 ⊢ Ⅎ𝑥(abs‘((ℝ D (𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴)))‘𝑦)) ≤ 𝑌
189		2fveq3 6837	. . . . . . . . . . 11 ⊢ (𝑥 = 𝑦 → (abs‘((ℝ D (𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴)))‘𝑥)) = (abs‘((ℝ D (𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴)))‘𝑦)))
190	189	breq1d 5096	. . . . . . . . . 10 ⊢ (𝑥 = 𝑦 → ((abs‘((ℝ D (𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴)))‘𝑥)) ≤ 𝑌 ↔ (abs‘((ℝ D (𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴)))‘𝑦)) ≤ 𝑌))
191	188, 190	rspc 3553	. . . . . . . . 9 ⊢ (𝑦 ∈ (𝑘(,)(𝑘 + 1)) → (∀𝑥 ∈ (𝑘(,)(𝑘 + 1))(abs‘((ℝ D (𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴)))‘𝑥)) ≤ 𝑌 → (abs‘((ℝ D (𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴)))‘𝑦)) ≤ 𝑌))
192	177, 191	mpan9 506	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) ∧ 𝑦 ∈ (𝑘(,)(𝑘 + 1))) → (abs‘((ℝ D (𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴)))‘𝑦)) ≤ 𝑌)
193	67, 70, 108, 166, 62, 192	dvlip 25970	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) ∧ ((𝑘 + 1) ∈ (𝑘[,](𝑘 + 1)) ∧ 𝑘 ∈ (𝑘[,](𝑘 + 1)))) → (abs‘(((𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴))‘(𝑘 + 1)) − ((𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴))‘𝑘))) ≤ (𝑌 · (abs‘((𝑘 + 1) − 𝑘))))
194	193	ex 412	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (((𝑘 + 1) ∈ (𝑘[,](𝑘 + 1)) ∧ 𝑘 ∈ (𝑘[,](𝑘 + 1))) → (abs‘(((𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴))‘(𝑘 + 1)) − ((𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴))‘𝑘))) ≤ (𝑌 · (abs‘((𝑘 + 1) − 𝑘)))))
195	74, 76, 194	mp2and 700	. . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (abs‘(((𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴))‘(𝑘 + 1)) − ((𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴))‘𝑘))) ≤ (𝑌 · (abs‘((𝑘 + 1) − 𝑘))))
196		ovex 7391	. . . . . . . . 9 ⊢ ((𝑋 · (𝑘 + 1)) − ⦋(𝑘 + 1) / 𝑥⦌𝐴) ∈ V
197		nfcv 2899	. . . . . . . . . 10 ⊢ Ⅎ𝑥(𝑘 + 1)
198		nfcv 2899	. . . . . . . . . . 11 ⊢ Ⅎ𝑥(𝑋 · (𝑘 + 1))
199		nfcv 2899	. . . . . . . . . . 11 ⊢ Ⅎ𝑥 −
200		nfcsb1v 3862	. . . . . . . . . . 11 ⊢ Ⅎ𝑥⦋(𝑘 + 1) / 𝑥⦌𝐴
201	198, 199, 200	nfov 7388	. . . . . . . . . 10 ⊢ Ⅎ𝑥((𝑋 · (𝑘 + 1)) − ⦋(𝑘 + 1) / 𝑥⦌𝐴)
202		oveq2 7366	. . . . . . . . . . 11 ⊢ (𝑥 = (𝑘 + 1) → (𝑋 · 𝑥) = (𝑋 · (𝑘 + 1)))
203		csbeq1a 3852	. . . . . . . . . . 11 ⊢ (𝑥 = (𝑘 + 1) → 𝐴 = ⦋(𝑘 + 1) / 𝑥⦌𝐴)
204	202, 203	oveq12d 7376	. . . . . . . . . 10 ⊢ (𝑥 = (𝑘 + 1) → ((𝑋 · 𝑥) − 𝐴) = ((𝑋 · (𝑘 + 1)) − ⦋(𝑘 + 1) / 𝑥⦌𝐴))
205		eqid 2737	. . . . . . . . . 10 ⊢ (𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴)) = (𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴))
206	197, 201, 204, 205	fvmptf 6961	. . . . . . . . 9 ⊢ (((𝑘 + 1) ∈ (𝑘[,](𝑘 + 1)) ∧ ((𝑋 · (𝑘 + 1)) − ⦋(𝑘 + 1) / 𝑥⦌𝐴) ∈ V) → ((𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴))‘(𝑘 + 1)) = ((𝑋 · (𝑘 + 1)) − ⦋(𝑘 + 1) / 𝑥⦌𝐴))
207	74, 196, 206	sylancl 587	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → ((𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴))‘(𝑘 + 1)) = ((𝑋 · (𝑘 + 1)) − ⦋(𝑘 + 1) / 𝑥⦌𝐴))
208	67	recnd 11162	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → 𝑘 ∈ ℂ)
209	3, 208	mulcld 11154	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑋 · 𝑘) ∈ ℂ)
210	209, 37	subcld 11494	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → ((𝑋 · 𝑘) − ⦋𝑘 / 𝑥⦌𝐴) ∈ ℂ)
211		nfcv 2899	. . . . . . . . . 10 ⊢ Ⅎ𝑥𝑘
212		nfcv 2899	. . . . . . . . . . 11 ⊢ Ⅎ𝑥(𝑋 · 𝑘)
213		nfcsb1v 3862	. . . . . . . . . . 11 ⊢ Ⅎ𝑥⦋𝑘 / 𝑥⦌𝐴
214	212, 199, 213	nfov 7388	. . . . . . . . . 10 ⊢ Ⅎ𝑥((𝑋 · 𝑘) − ⦋𝑘 / 𝑥⦌𝐴)
215		oveq2 7366	. . . . . . . . . . 11 ⊢ (𝑥 = 𝑘 → (𝑋 · 𝑥) = (𝑋 · 𝑘))
216		csbeq1a 3852	. . . . . . . . . . 11 ⊢ (𝑥 = 𝑘 → 𝐴 = ⦋𝑘 / 𝑥⦌𝐴)
217	215, 216	oveq12d 7376	. . . . . . . . . 10 ⊢ (𝑥 = 𝑘 → ((𝑋 · 𝑥) − 𝐴) = ((𝑋 · 𝑘) − ⦋𝑘 / 𝑥⦌𝐴))
218	211, 214, 217, 205	fvmptf 6961	. . . . . . . . 9 ⊢ ((𝑘 ∈ (𝑘[,](𝑘 + 1)) ∧ ((𝑋 · 𝑘) − ⦋𝑘 / 𝑥⦌𝐴) ∈ ℂ) → ((𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴))‘𝑘) = ((𝑋 · 𝑘) − ⦋𝑘 / 𝑥⦌𝐴))
219	76, 210, 218	syl2anc 585	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → ((𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴))‘𝑘) = ((𝑋 · 𝑘) − ⦋𝑘 / 𝑥⦌𝐴))
220	207, 219	oveq12d 7376	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (((𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴))‘(𝑘 + 1)) − ((𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴))‘𝑘)) = (((𝑋 · (𝑘 + 1)) − ⦋(𝑘 + 1) / 𝑥⦌𝐴) − ((𝑋 · 𝑘) − ⦋𝑘 / 𝑥⦌𝐴)))
221		peano2cn 11307	. . . . . . . . . 10 ⊢ (𝑘 ∈ ℂ → (𝑘 + 1) ∈ ℂ)
222	208, 221	syl 17	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑘 + 1) ∈ ℂ)
223	3, 222	mulcld 11154	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑋 · (𝑘 + 1)) ∈ ℂ)
224	223, 209, 32, 37	sub4d 11543	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (((𝑋 · (𝑘 + 1)) − (𝑋 · 𝑘)) − (⦋(𝑘 + 1) / 𝑥⦌𝐴 − ⦋𝑘 / 𝑥⦌𝐴)) = (((𝑋 · (𝑘 + 1)) − ⦋(𝑘 + 1) / 𝑥⦌𝐴) − ((𝑋 · 𝑘) − ⦋𝑘 / 𝑥⦌𝐴)))
225		1cnd 11128	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → 1 ∈ ℂ)
226	208, 225	pncan2d 11496	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → ((𝑘 + 1) − 𝑘) = 1)
227	226	oveq2d 7374	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑋 · ((𝑘 + 1) − 𝑘)) = (𝑋 · 1))
228	3, 222, 208	subdid 11595	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑋 · ((𝑘 + 1) − 𝑘)) = ((𝑋 · (𝑘 + 1)) − (𝑋 · 𝑘)))
229	227, 228, 143	3eqtr3d 2780	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → ((𝑋 · (𝑘 + 1)) − (𝑋 · 𝑘)) = 𝑋)
230	229	oveq1d 7373	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (((𝑋 · (𝑘 + 1)) − (𝑋 · 𝑘)) − (⦋(𝑘 + 1) / 𝑥⦌𝐴 − ⦋𝑘 / 𝑥⦌𝐴)) = (𝑋 − (⦋(𝑘 + 1) / 𝑥⦌𝐴 − ⦋𝑘 / 𝑥⦌𝐴)))
231	220, 224, 230	3eqtr2rd 2779	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑋 − (⦋(𝑘 + 1) / 𝑥⦌𝐴 − ⦋𝑘 / 𝑥⦌𝐴)) = (((𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴))‘(𝑘 + 1)) − ((𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴))‘𝑘)))
232	231	fveq2d 6836	. . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (abs‘(𝑋 − (⦋(𝑘 + 1) / 𝑥⦌𝐴 − ⦋𝑘 / 𝑥⦌𝐴))) = (abs‘(((𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴))‘(𝑘 + 1)) − ((𝑥 ∈ (𝑘[,](𝑘 + 1)) ↦ ((𝑋 · 𝑥) − 𝐴))‘𝑘))))
233	226	fveq2d 6836	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (abs‘((𝑘 + 1) − 𝑘)) = (abs‘1))
234		abs1 15248	. . . . . . . 8 ⊢ (abs‘1) = 1
235	233, 234	eqtrdi 2788	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (abs‘((𝑘 + 1) − 𝑘)) = 1)
236	235	oveq2d 7374	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑌 · (abs‘((𝑘 + 1) − 𝑘))) = (𝑌 · 1))
237	62	recnd 11162	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → 𝑌 ∈ ℂ)
238	237	mulridd 11151	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (𝑌 · 1) = 𝑌)
239	236, 238	eqtr2d 2773	. . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → 𝑌 = (𝑌 · (abs‘((𝑘 + 1) − 𝑘))))
240	195, 232, 239	3brtr4d 5118	. . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀..^𝑁)) → (abs‘(𝑋 − (⦋(𝑘 + 1) / 𝑥⦌𝐴 − ⦋𝑘 / 𝑥⦌𝐴))) ≤ 𝑌)
241	2, 60, 62, 240	fsumle 15751	. . 3 ⊢ (𝜑 → Σ𝑘 ∈ (𝑀..^𝑁)(abs‘(𝑋 − (⦋(𝑘 + 1) / 𝑥⦌𝐴 − ⦋𝑘 / 𝑥⦌𝐴))) ≤ Σ𝑘 ∈ (𝑀..^𝑁)𝑌)
242	59, 61, 63, 64, 241	letrd 11292	. 2 ⊢ (𝜑 → (abs‘Σ𝑘 ∈ (𝑀..^𝑁)(𝑋 − (⦋(𝑘 + 1) / 𝑥⦌𝐴 − ⦋𝑘 / 𝑥⦌𝐴))) ≤ Σ𝑘 ∈ (𝑀..^𝑁)𝑌)
243	56, 242	eqbrtrrd 5110	1 ⊢ (𝜑 → (abs‘(Σ𝑘 ∈ (𝑀..^𝑁)𝑋 − (𝐷 − 𝐶))) ≤ Σ𝑘 ∈ (𝑀..^𝑁)𝑌)

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 395 = wceq 1542 ∈ wcel 2114 ∀wral 3052 Vcvv 3430 ⦋csb 3838 ∩ cin 3889 ⊆ wss 3890 {cpr 4570 class class class wbr 5086 ↦ cmpt 5167 dom cdm 5622 ran crn 5623 ↾ cres 5624 ⟶wf 6486 ‘cfv 6490 (class class class)co 7358 Fincfn 8884 ℂcc 11025 ℝcr 11026 1c1 11028 + caddc 11030 · cmul 11032 ℝ^*cxr 11167 ≤ cle 11169 − cmin 11366 ℤcz 12513 ℤ_≥cuz 12777 (,)cioo 13287 [,]cicc 13290 ...cfz 13450 ..^cfzo 13597 abscabs 15185 Σcsu 15637 TopOpenctopn 17373 topGenctg 17389 ℂ_fldccnfld 21342 intcnt 22991 Cn ccn 23198 ×_t ctx 23534 –cn→ccncf 24852 D cdv 25839

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 2709 ax-rep 5212 ax-sep 5231 ax-nul 5241 ax-pow 5300 ax-pr 5368 ax-un 7680 ax-inf2 9551 ax-cnex 11083 ax-resscn 11084 ax-1cn 11085 ax-icn 11086 ax-addcl 11087 ax-addrcl 11088 ax-mulcl 11089 ax-mulrcl 11090 ax-mulcom 11091 ax-addass 11092 ax-mulass 11093 ax-distr 11094 ax-i2m1 11095 ax-1ne0 11096 ax-1rid 11097 ax-rnegex 11098 ax-rrecex 11099 ax-cnre 11100 ax-pre-lttri 11101 ax-pre-lttrn 11102 ax-pre-ltadd 11103 ax-pre-mulgt0 11104 ax-pre-sup 11105 ax-addf 11106

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 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-rmo 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-tp 4573 df-op 4575 df-uni 4852 df-int 4891 df-iun 4936 df-iin 4937 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5517 df-eprel 5522 df-po 5530 df-so 5531 df-fr 5575 df-se 5576 df-we 5577 df-xp 5628 df-rel 5629 df-cnv 5630 df-co 5631 df-dm 5632 df-rn 5633 df-res 5634 df-ima 5635 df-pred 6257 df-ord 6318 df-on 6319 df-lim 6320 df-suc 6321 df-iota 6446 df-fun 6492 df-fn 6493 df-f 6494 df-f1 6495 df-fo 6496 df-f1o 6497 df-fv 6498 df-isom 6499 df-riota 7315 df-ov 7361 df-oprab 7362 df-mpo 7363 df-of 7622 df-om 7809 df-1st 7933 df-2nd 7934 df-supp 8102 df-frecs 8222 df-wrecs 8253 df-recs 8302 df-rdg 8340 df-1o 8396 df-2o 8397 df-er 8634 df-map 8766 df-pm 8767 df-ixp 8837 df-en 8885 df-dom 8886 df-sdom 8887 df-fin 8888 df-fsupp 9266 df-fi 9315 df-sup 9346 df-inf 9347 df-oi 9416 df-card 9852 df-pnf 11170 df-mnf 11171 df-xr 11172 df-ltxr 11173 df-le 11174 df-sub 11368 df-neg 11369 df-div 11797 df-nn 12164 df-2 12233 df-3 12234 df-4 12235 df-5 12236 df-6 12237 df-7 12238 df-8 12239 df-9 12240 df-n0 12427 df-z 12514 df-dec 12634 df-uz 12778 df-q 12888 df-rp 12932 df-xneg 13052 df-xadd 13053 df-xmul 13054 df-ioo 13291 df-ico 13293 df-icc 13294 df-fz 13451 df-fzo 13598 df-seq 13953 df-exp 14013 df-hash 14282 df-cj 15050 df-re 15051 df-im 15052 df-sqrt 15186 df-abs 15187 df-clim 15439 df-sum 15638 df-struct 17106 df-sets 17123 df-slot 17141 df-ndx 17153 df-base 17169 df-ress 17190 df-plusg 17222 df-mulr 17223 df-starv 17224 df-sca 17225 df-vsca 17226 df-ip 17227 df-tset 17228 df-ple 17229 df-ds 17231 df-unif 17232 df-hom 17233 df-cco 17234 df-rest 17374 df-topn 17375 df-0g 17393 df-gsum 17394 df-topgen 17395 df-pt 17396 df-prds 17399 df-xrs 17455 df-qtop 17460 df-imas 17461 df-xps 17463 df-mre 17537 df-mrc 17538 df-acs 17540 df-mgm 18597 df-sgrp 18676 df-mnd 18692 df-submnd 18741 df-mulg 19033 df-cntz 19281 df-cmn 19746 df-psmet 21334 df-xmet 21335 df-met 21336 df-bl 21337 df-mopn 21338 df-fbas 21339 df-fg 21340 df-cnfld 21343 df-top 22868 df-topon 22885 df-topsp 22907 df-bases 22920 df-cld 22993 df-ntr 22994 df-cls 22995 df-nei 23072 df-lp 23110 df-perf 23111 df-cn 23201 df-cnp 23202 df-haus 23289 df-cmp 23361 df-tx 23536 df-hmeo 23729 df-fil 23820 df-fm 23912 df-flim 23913 df-flf 23914 df-xms 24294 df-ms 24295 df-tms 24296 df-cncf 24854 df-limc 25842 df-dv 25843

This theorem is referenced by: (None)

W3C validator