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Theorem dvfsumlem1 25534

Description: Lemma for dvfsumrlim 25539. (Contributed by Mario Carneiro, 17-May-2016.)

**Hypotheses**
Ref	Expression
dvfsum.s	⊢ 𝑆 = (𝑇(,)+∞)
dvfsum.z	⊢ 𝑍 = (ℤ_≥‘𝑀)
dvfsum.m	⊢ (𝜑 → 𝑀 ∈ ℤ)
dvfsum.d	⊢ (𝜑 → 𝐷 ∈ ℝ)
dvfsum.md	⊢ (𝜑 → 𝑀 ≤ (𝐷 + 1))
dvfsum.t	⊢ (𝜑 → 𝑇 ∈ ℝ)
dvfsum.a	⊢ ((𝜑 ∧ 𝑥 ∈ 𝑆) → 𝐴 ∈ ℝ)
dvfsum.b1	⊢ ((𝜑 ∧ 𝑥 ∈ 𝑆) → 𝐵 ∈ 𝑉)
dvfsum.b2	⊢ ((𝜑 ∧ 𝑥 ∈ 𝑍) → 𝐵 ∈ ℝ)
dvfsum.b3	⊢ (𝜑 → (ℝ D (𝑥 ∈ 𝑆 ↦ 𝐴)) = (𝑥 ∈ 𝑆 ↦ 𝐵))
dvfsum.c	⊢ (𝑥 = 𝑘 → 𝐵 = 𝐶)
dvfsum.u	⊢ (𝜑 → 𝑈 ∈ ℝ^*)
dvfsum.l	⊢ ((𝜑 ∧ (𝑥 ∈ 𝑆 ∧ 𝑘 ∈ 𝑆) ∧ (𝐷 ≤ 𝑥 ∧ 𝑥 ≤ 𝑘 ∧ 𝑘 ≤ 𝑈)) → 𝐶 ≤ 𝐵)
dvfsum.h	⊢ 𝐻 = (𝑥 ∈ 𝑆 ↦ (((𝑥 − (⌊‘𝑥)) · 𝐵) + (Σ𝑘 ∈ (𝑀...(⌊‘𝑥))𝐶 − 𝐴)))
dvfsumlem1.1	⊢ (𝜑 → 𝑋 ∈ 𝑆)
dvfsumlem1.2	⊢ (𝜑 → 𝑌 ∈ 𝑆)
dvfsumlem1.3	⊢ (𝜑 → 𝐷 ≤ 𝑋)
dvfsumlem1.4	⊢ (𝜑 → 𝑋 ≤ 𝑌)
dvfsumlem1.5	⊢ (𝜑 → 𝑌 ≤ 𝑈)
dvfsumlem1.6	⊢ (𝜑 → 𝑌 ≤ ((⌊‘𝑋) + 1))

**Assertion**
Ref	Expression
dvfsumlem1	⊢ (𝜑 → (𝐻‘𝑌) = ((((𝑌 − (⌊‘𝑋)) · ⦋𝑌 / 𝑥⦌𝐵) − ⦋𝑌 / 𝑥⦌𝐴) + Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶))

Distinct variable groups: 𝐵,𝑘 𝑥,𝐶 𝑥,𝑘,𝐷 𝜑,𝑘,𝑥 𝑆,𝑘,𝑥 𝑘,𝑀,𝑥 𝑥,𝑇 𝑘,𝑌,𝑥 𝑥,𝑍 𝑈,𝑘,𝑥 𝑘,𝑋,𝑥 Allowed substitution hints: 𝐴(𝑥,𝑘) 𝐵(𝑥) 𝐶(𝑘) 𝑇(𝑘) 𝐻(𝑥,𝑘) 𝑉(𝑥,𝑘) 𝑍(𝑘)

**Proof of Theorem dvfsumlem1**
Step	Hyp	Ref	Expression
1		dvfsum.s	. . . . . . . . . 10 ⊢ 𝑆 = (𝑇(,)+∞)
2		ioossre 13381	. . . . . . . . . 10 ⊢ (𝑇(,)+∞) ⊆ ℝ
3	1, 2	eqsstri 4015	. . . . . . . . 9 ⊢ 𝑆 ⊆ ℝ
4		dvfsumlem1.2	. . . . . . . . 9 ⊢ (𝜑 → 𝑌 ∈ 𝑆)
5	3, 4	sselid 3979	. . . . . . . 8 ⊢ (𝜑 → 𝑌 ∈ ℝ)
6		dvfsumlem1.1	. . . . . . . . . 10 ⊢ (𝜑 → 𝑋 ∈ 𝑆)
7	3, 6	sselid 3979	. . . . . . . . 9 ⊢ (𝜑 → 𝑋 ∈ ℝ)
8	7	flcld 13759	. . . . . . . 8 ⊢ (𝜑 → (⌊‘𝑋) ∈ ℤ)
9		reflcl 13757	. . . . . . . . . 10 ⊢ (𝑋 ∈ ℝ → (⌊‘𝑋) ∈ ℝ)
10	7, 9	syl 17	. . . . . . . . 9 ⊢ (𝜑 → (⌊‘𝑋) ∈ ℝ)
11		flle 13760	. . . . . . . . . 10 ⊢ (𝑋 ∈ ℝ → (⌊‘𝑋) ≤ 𝑋)
12	7, 11	syl 17	. . . . . . . . 9 ⊢ (𝜑 → (⌊‘𝑋) ≤ 𝑋)
13		dvfsumlem1.4	. . . . . . . . 9 ⊢ (𝜑 → 𝑋 ≤ 𝑌)
14	10, 7, 5, 12, 13	letrd 11367	. . . . . . . 8 ⊢ (𝜑 → (⌊‘𝑋) ≤ 𝑌)
15		flbi 13777	. . . . . . . . 9 ⊢ ((𝑌 ∈ ℝ ∧ (⌊‘𝑋) ∈ ℤ) → ((⌊‘𝑌) = (⌊‘𝑋) ↔ ((⌊‘𝑋) ≤ 𝑌 ∧ 𝑌 < ((⌊‘𝑋) + 1))))
16	15	baibd 540	. . . . . . . 8 ⊢ (((𝑌 ∈ ℝ ∧ (⌊‘𝑋) ∈ ℤ) ∧ (⌊‘𝑋) ≤ 𝑌) → ((⌊‘𝑌) = (⌊‘𝑋) ↔ 𝑌 < ((⌊‘𝑋) + 1)))
17	5, 8, 14, 16	syl21anc 836	. . . . . . 7 ⊢ (𝜑 → ((⌊‘𝑌) = (⌊‘𝑋) ↔ 𝑌 < ((⌊‘𝑋) + 1)))
18	17	biimpar 478	. . . . . 6 ⊢ ((𝜑 ∧ 𝑌 < ((⌊‘𝑋) + 1)) → (⌊‘𝑌) = (⌊‘𝑋))
19	18	oveq2d 7421	. . . . 5 ⊢ ((𝜑 ∧ 𝑌 < ((⌊‘𝑋) + 1)) → (𝑌 − (⌊‘𝑌)) = (𝑌 − (⌊‘𝑋)))
20	19	oveq1d 7420	. . . 4 ⊢ ((𝜑 ∧ 𝑌 < ((⌊‘𝑋) + 1)) → ((𝑌 − (⌊‘𝑌)) · ⦋𝑌 / 𝑥⦌𝐵) = ((𝑌 − (⌊‘𝑋)) · ⦋𝑌 / 𝑥⦌𝐵))
21	18	oveq2d 7421	. . . . . 6 ⊢ ((𝜑 ∧ 𝑌 < ((⌊‘𝑋) + 1)) → (𝑀...(⌊‘𝑌)) = (𝑀...(⌊‘𝑋)))
22	21	sumeq1d 15643	. . . . 5 ⊢ ((𝜑 ∧ 𝑌 < ((⌊‘𝑋) + 1)) → Σ𝑘 ∈ (𝑀...(⌊‘𝑌))𝐶 = Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶)
23	22	oveq1d 7420	. . . 4 ⊢ ((𝜑 ∧ 𝑌 < ((⌊‘𝑋) + 1)) → (Σ𝑘 ∈ (𝑀...(⌊‘𝑌))𝐶 − ⦋𝑌 / 𝑥⦌𝐴) = (Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶 − ⦋𝑌 / 𝑥⦌𝐴))
24	20, 23	oveq12d 7423	. . 3 ⊢ ((𝜑 ∧ 𝑌 < ((⌊‘𝑋) + 1)) → (((𝑌 − (⌊‘𝑌)) · ⦋𝑌 / 𝑥⦌𝐵) + (Σ𝑘 ∈ (𝑀...(⌊‘𝑌))𝐶 − ⦋𝑌 / 𝑥⦌𝐴)) = (((𝑌 − (⌊‘𝑋)) · ⦋𝑌 / 𝑥⦌𝐵) + (Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶 − ⦋𝑌 / 𝑥⦌𝐴)))
25		simpr 485	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑌 = ((⌊‘𝑋) + 1)) → 𝑌 = ((⌊‘𝑋) + 1))
26	7	adantr 481	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑌 = ((⌊‘𝑋) + 1)) → 𝑋 ∈ ℝ)
27	26	flcld 13759	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑌 = ((⌊‘𝑋) + 1)) → (⌊‘𝑋) ∈ ℤ)
28	27	peano2zd 12665	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑌 = ((⌊‘𝑋) + 1)) → ((⌊‘𝑋) + 1) ∈ ℤ)
29	25, 28	eqeltrd 2833	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑌 = ((⌊‘𝑋) + 1)) → 𝑌 ∈ ℤ)
30		flid 13769	. . . . . . . . . 10 ⊢ (𝑌 ∈ ℤ → (⌊‘𝑌) = 𝑌)
31	29, 30	syl 17	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑌 = ((⌊‘𝑋) + 1)) → (⌊‘𝑌) = 𝑌)
32	31, 25	eqtrd 2772	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑌 = ((⌊‘𝑋) + 1)) → (⌊‘𝑌) = ((⌊‘𝑋) + 1))
33	32	oveq2d 7421	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑌 = ((⌊‘𝑋) + 1)) → (𝑌 − (⌊‘𝑌)) = (𝑌 − ((⌊‘𝑋) + 1)))
34	33	oveq1d 7420	. . . . . 6 ⊢ ((𝜑 ∧ 𝑌 = ((⌊‘𝑋) + 1)) → ((𝑌 − (⌊‘𝑌)) · ⦋𝑌 / 𝑥⦌𝐵) = ((𝑌 − ((⌊‘𝑋) + 1)) · ⦋𝑌 / 𝑥⦌𝐵))
35	5	recnd 11238	. . . . . . . . . 10 ⊢ (𝜑 → 𝑌 ∈ ℂ)
36	10	recnd 11238	. . . . . . . . . 10 ⊢ (𝜑 → (⌊‘𝑋) ∈ ℂ)
37	35, 36	subcld 11567	. . . . . . . . 9 ⊢ (𝜑 → (𝑌 − (⌊‘𝑋)) ∈ ℂ)
38		1cnd 11205	. . . . . . . . 9 ⊢ (𝜑 → 1 ∈ ℂ)
39	3	a1i 11	. . . . . . . . . . . . 13 ⊢ (𝜑 → 𝑆 ⊆ ℝ)
40		dvfsum.a	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑆) → 𝐴 ∈ ℝ)
41		dvfsum.b1	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑆) → 𝐵 ∈ 𝑉)
42		dvfsum.b3	. . . . . . . . . . . . 13 ⊢ (𝜑 → (ℝ D (𝑥 ∈ 𝑆 ↦ 𝐴)) = (𝑥 ∈ 𝑆 ↦ 𝐵))
43	39, 40, 41, 42	dvmptrecl 25532	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑆) → 𝐵 ∈ ℝ)
44	43	recnd 11238	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑆) → 𝐵 ∈ ℂ)
45	44	ralrimiva 3146	. . . . . . . . . 10 ⊢ (𝜑 → ∀𝑥 ∈ 𝑆 𝐵 ∈ ℂ)
46		nfcsb1v 3917	. . . . . . . . . . . 12 ⊢ Ⅎ𝑥⦋𝑌 / 𝑥⦌𝐵
47	46	nfel1 2919	. . . . . . . . . . 11 ⊢ Ⅎ𝑥⦋𝑌 / 𝑥⦌𝐵 ∈ ℂ
48		csbeq1a 3906	. . . . . . . . . . . 12 ⊢ (𝑥 = 𝑌 → 𝐵 = ⦋𝑌 / 𝑥⦌𝐵)
49	48	eleq1d 2818	. . . . . . . . . . 11 ⊢ (𝑥 = 𝑌 → (𝐵 ∈ ℂ ↔ ⦋𝑌 / 𝑥⦌𝐵 ∈ ℂ))
50	47, 49	rspc 3600	. . . . . . . . . 10 ⊢ (𝑌 ∈ 𝑆 → (∀𝑥 ∈ 𝑆 𝐵 ∈ ℂ → ⦋𝑌 / 𝑥⦌𝐵 ∈ ℂ))
51	4, 45, 50	sylc 65	. . . . . . . . 9 ⊢ (𝜑 → ⦋𝑌 / 𝑥⦌𝐵 ∈ ℂ)
52	37, 38, 51	subdird 11667	. . . . . . . 8 ⊢ (𝜑 → (((𝑌 − (⌊‘𝑋)) − 1) · ⦋𝑌 / 𝑥⦌𝐵) = (((𝑌 − (⌊‘𝑋)) · ⦋𝑌 / 𝑥⦌𝐵) − (1 · ⦋𝑌 / 𝑥⦌𝐵)))
53	35, 36, 38	subsub4d 11598	. . . . . . . . 9 ⊢ (𝜑 → ((𝑌 − (⌊‘𝑋)) − 1) = (𝑌 − ((⌊‘𝑋) + 1)))
54	53	oveq1d 7420	. . . . . . . 8 ⊢ (𝜑 → (((𝑌 − (⌊‘𝑋)) − 1) · ⦋𝑌 / 𝑥⦌𝐵) = ((𝑌 − ((⌊‘𝑋) + 1)) · ⦋𝑌 / 𝑥⦌𝐵))
55	51	mullidd 11228	. . . . . . . . 9 ⊢ (𝜑 → (1 · ⦋𝑌 / 𝑥⦌𝐵) = ⦋𝑌 / 𝑥⦌𝐵)
56	55	oveq2d 7421	. . . . . . . 8 ⊢ (𝜑 → (((𝑌 − (⌊‘𝑋)) · ⦋𝑌 / 𝑥⦌𝐵) − (1 · ⦋𝑌 / 𝑥⦌𝐵)) = (((𝑌 − (⌊‘𝑋)) · ⦋𝑌 / 𝑥⦌𝐵) − ⦋𝑌 / 𝑥⦌𝐵))
57	52, 54, 56	3eqtr3d 2780	. . . . . . 7 ⊢ (𝜑 → ((𝑌 − ((⌊‘𝑋) + 1)) · ⦋𝑌 / 𝑥⦌𝐵) = (((𝑌 − (⌊‘𝑋)) · ⦋𝑌 / 𝑥⦌𝐵) − ⦋𝑌 / 𝑥⦌𝐵))
58	57	adantr 481	. . . . . 6 ⊢ ((𝜑 ∧ 𝑌 = ((⌊‘𝑋) + 1)) → ((𝑌 − ((⌊‘𝑋) + 1)) · ⦋𝑌 / 𝑥⦌𝐵) = (((𝑌 − (⌊‘𝑋)) · ⦋𝑌 / 𝑥⦌𝐵) − ⦋𝑌 / 𝑥⦌𝐵))
59	34, 58	eqtrd 2772	. . . . 5 ⊢ ((𝜑 ∧ 𝑌 = ((⌊‘𝑋) + 1)) → ((𝑌 − (⌊‘𝑌)) · ⦋𝑌 / 𝑥⦌𝐵) = (((𝑌 − (⌊‘𝑋)) · ⦋𝑌 / 𝑥⦌𝐵) − ⦋𝑌 / 𝑥⦌𝐵))
60		dvfsum.m	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝑀 ∈ ℤ)
61	8	peano2zd 12665	. . . . . . . . . . . 12 ⊢ (𝜑 → ((⌊‘𝑋) + 1) ∈ ℤ)
62	60	zred 12662	. . . . . . . . . . . . . . . 16 ⊢ (𝜑 → 𝑀 ∈ ℝ)
63		peano2rem 11523	. . . . . . . . . . . . . . . 16 ⊢ (𝑀 ∈ ℝ → (𝑀 − 1) ∈ ℝ)
64	62, 63	syl 17	. . . . . . . . . . . . . . 15 ⊢ (𝜑 → (𝑀 − 1) ∈ ℝ)
65		dvfsum.d	. . . . . . . . . . . . . . 15 ⊢ (𝜑 → 𝐷 ∈ ℝ)
66		dvfsum.md	. . . . . . . . . . . . . . . 16 ⊢ (𝜑 → 𝑀 ≤ (𝐷 + 1))
67		1red 11211	. . . . . . . . . . . . . . . . 17 ⊢ (𝜑 → 1 ∈ ℝ)
68	62, 67, 65	lesubaddd 11807	. . . . . . . . . . . . . . . 16 ⊢ (𝜑 → ((𝑀 − 1) ≤ 𝐷 ↔ 𝑀 ≤ (𝐷 + 1)))
69	66, 68	mpbird 256	. . . . . . . . . . . . . . 15 ⊢ (𝜑 → (𝑀 − 1) ≤ 𝐷)
70		dvfsumlem1.3	. . . . . . . . . . . . . . 15 ⊢ (𝜑 → 𝐷 ≤ 𝑋)
71	64, 65, 7, 69, 70	letrd 11367	. . . . . . . . . . . . . 14 ⊢ (𝜑 → (𝑀 − 1) ≤ 𝑋)
72		peano2zm 12601	. . . . . . . . . . . . . . . 16 ⊢ (𝑀 ∈ ℤ → (𝑀 − 1) ∈ ℤ)
73	60, 72	syl 17	. . . . . . . . . . . . . . 15 ⊢ (𝜑 → (𝑀 − 1) ∈ ℤ)
74		flge 13766	. . . . . . . . . . . . . . 15 ⊢ ((𝑋 ∈ ℝ ∧ (𝑀 − 1) ∈ ℤ) → ((𝑀 − 1) ≤ 𝑋 ↔ (𝑀 − 1) ≤ (⌊‘𝑋)))
75	7, 73, 74	syl2anc 584	. . . . . . . . . . . . . 14 ⊢ (𝜑 → ((𝑀 − 1) ≤ 𝑋 ↔ (𝑀 − 1) ≤ (⌊‘𝑋)))
76	71, 75	mpbid 231	. . . . . . . . . . . . 13 ⊢ (𝜑 → (𝑀 − 1) ≤ (⌊‘𝑋))
77	62, 67, 10	lesubaddd 11807	. . . . . . . . . . . . 13 ⊢ (𝜑 → ((𝑀 − 1) ≤ (⌊‘𝑋) ↔ 𝑀 ≤ ((⌊‘𝑋) + 1)))
78	76, 77	mpbid 231	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝑀 ≤ ((⌊‘𝑋) + 1))
79		eluz2 12824	. . . . . . . . . . . 12 ⊢ (((⌊‘𝑋) + 1) ∈ (ℤ_≥‘𝑀) ↔ (𝑀 ∈ ℤ ∧ ((⌊‘𝑋) + 1) ∈ ℤ ∧ 𝑀 ≤ ((⌊‘𝑋) + 1)))
80	60, 61, 78, 79	syl3anbrc 1343	. . . . . . . . . . 11 ⊢ (𝜑 → ((⌊‘𝑋) + 1) ∈ (ℤ_≥‘𝑀))
81		dvfsum.b2	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑍) → 𝐵 ∈ ℝ)
82	81	recnd 11238	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑍) → 𝐵 ∈ ℂ)
83	82	ralrimiva 3146	. . . . . . . . . . . 12 ⊢ (𝜑 → ∀𝑥 ∈ 𝑍 𝐵 ∈ ℂ)
84		elfzuz 13493	. . . . . . . . . . . . 13 ⊢ (𝑘 ∈ (𝑀...((⌊‘𝑋) + 1)) → 𝑘 ∈ (ℤ_≥‘𝑀))
85		dvfsum.z	. . . . . . . . . . . . 13 ⊢ 𝑍 = (ℤ_≥‘𝑀)
86	84, 85	eleqtrrdi 2844	. . . . . . . . . . . 12 ⊢ (𝑘 ∈ (𝑀...((⌊‘𝑋) + 1)) → 𝑘 ∈ 𝑍)
87		dvfsum.c	. . . . . . . . . . . . . 14 ⊢ (𝑥 = 𝑘 → 𝐵 = 𝐶)
88	87	eleq1d 2818	. . . . . . . . . . . . 13 ⊢ (𝑥 = 𝑘 → (𝐵 ∈ ℂ ↔ 𝐶 ∈ ℂ))
89	88	rspccva 3611	. . . . . . . . . . . 12 ⊢ ((∀𝑥 ∈ 𝑍 𝐵 ∈ ℂ ∧ 𝑘 ∈ 𝑍) → 𝐶 ∈ ℂ)
90	83, 86, 89	syl2an 596	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀...((⌊‘𝑋) + 1))) → 𝐶 ∈ ℂ)
91		eqvisset 3491	. . . . . . . . . . . . 13 ⊢ (𝑘 = ((⌊‘𝑋) + 1) → ((⌊‘𝑋) + 1) ∈ V)
92		eqeq2 2744	. . . . . . . . . . . . . . 15 ⊢ (𝑘 = ((⌊‘𝑋) + 1) → (𝑥 = 𝑘 ↔ 𝑥 = ((⌊‘𝑋) + 1)))
93	92	biimpar 478	. . . . . . . . . . . . . 14 ⊢ ((𝑘 = ((⌊‘𝑋) + 1) ∧ 𝑥 = ((⌊‘𝑋) + 1)) → 𝑥 = 𝑘)
94	93, 87	syl 17	. . . . . . . . . . . . 13 ⊢ ((𝑘 = ((⌊‘𝑋) + 1) ∧ 𝑥 = ((⌊‘𝑋) + 1)) → 𝐵 = 𝐶)
95	91, 94	csbied 3930	. . . . . . . . . . . 12 ⊢ (𝑘 = ((⌊‘𝑋) + 1) → ⦋((⌊‘𝑋) + 1) / 𝑥⦌𝐵 = 𝐶)
96	95	eqcomd 2738	. . . . . . . . . . 11 ⊢ (𝑘 = ((⌊‘𝑋) + 1) → 𝐶 = ⦋((⌊‘𝑋) + 1) / 𝑥⦌𝐵)
97	80, 90, 96	fsumm1 15693	. . . . . . . . . 10 ⊢ (𝜑 → Σ𝑘 ∈ (𝑀...((⌊‘𝑋) + 1))𝐶 = (Σ𝑘 ∈ (𝑀...(((⌊‘𝑋) + 1) − 1))𝐶 + ⦋((⌊‘𝑋) + 1) / 𝑥⦌𝐵))
98		ax-1cn 11164	. . . . . . . . . . . . . 14 ⊢ 1 ∈ ℂ
99		pncan 11462	. . . . . . . . . . . . . 14 ⊢ (((⌊‘𝑋) ∈ ℂ ∧ 1 ∈ ℂ) → (((⌊‘𝑋) + 1) − 1) = (⌊‘𝑋))
100	36, 98, 99	sylancl 586	. . . . . . . . . . . . 13 ⊢ (𝜑 → (((⌊‘𝑋) + 1) − 1) = (⌊‘𝑋))
101	100	oveq2d 7421	. . . . . . . . . . . 12 ⊢ (𝜑 → (𝑀...(((⌊‘𝑋) + 1) − 1)) = (𝑀...(⌊‘𝑋)))
102	101	sumeq1d 15643	. . . . . . . . . . 11 ⊢ (𝜑 → Σ𝑘 ∈ (𝑀...(((⌊‘𝑋) + 1) − 1))𝐶 = Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶)
103	102	oveq1d 7420	. . . . . . . . . 10 ⊢ (𝜑 → (Σ𝑘 ∈ (𝑀...(((⌊‘𝑋) + 1) − 1))𝐶 + ⦋((⌊‘𝑋) + 1) / 𝑥⦌𝐵) = (Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶 + ⦋((⌊‘𝑋) + 1) / 𝑥⦌𝐵))
104	97, 103	eqtrd 2772	. . . . . . . . 9 ⊢ (𝜑 → Σ𝑘 ∈ (𝑀...((⌊‘𝑋) + 1))𝐶 = (Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶 + ⦋((⌊‘𝑋) + 1) / 𝑥⦌𝐵))
105	104	adantr 481	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑌 = ((⌊‘𝑋) + 1)) → Σ𝑘 ∈ (𝑀...((⌊‘𝑋) + 1))𝐶 = (Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶 + ⦋((⌊‘𝑋) + 1) / 𝑥⦌𝐵))
106	32	oveq2d 7421	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑌 = ((⌊‘𝑋) + 1)) → (𝑀...(⌊‘𝑌)) = (𝑀...((⌊‘𝑋) + 1)))
107	106	sumeq1d 15643	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑌 = ((⌊‘𝑋) + 1)) → Σ𝑘 ∈ (𝑀...(⌊‘𝑌))𝐶 = Σ𝑘 ∈ (𝑀...((⌊‘𝑋) + 1))𝐶)
108	25	csbeq1d 3896	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑌 = ((⌊‘𝑋) + 1)) → ⦋𝑌 / 𝑥⦌𝐵 = ⦋((⌊‘𝑋) + 1) / 𝑥⦌𝐵)
109	108	oveq2d 7421	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑌 = ((⌊‘𝑋) + 1)) → (Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶 + ⦋𝑌 / 𝑥⦌𝐵) = (Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶 + ⦋((⌊‘𝑋) + 1) / 𝑥⦌𝐵))
110	105, 107, 109	3eqtr4d 2782	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑌 = ((⌊‘𝑋) + 1)) → Σ𝑘 ∈ (𝑀...(⌊‘𝑌))𝐶 = (Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶 + ⦋𝑌 / 𝑥⦌𝐵))
111	110	oveq1d 7420	. . . . . 6 ⊢ ((𝜑 ∧ 𝑌 = ((⌊‘𝑋) + 1)) → (Σ𝑘 ∈ (𝑀...(⌊‘𝑌))𝐶 − ⦋𝑌 / 𝑥⦌𝐴) = ((Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶 + ⦋𝑌 / 𝑥⦌𝐵) − ⦋𝑌 / 𝑥⦌𝐴))
112		fzfid 13934	. . . . . . . . 9 ⊢ (𝜑 → (𝑀...(⌊‘𝑋)) ∈ Fin)
113		elfzuz 13493	. . . . . . . . . . 11 ⊢ (𝑘 ∈ (𝑀...(⌊‘𝑋)) → 𝑘 ∈ (ℤ_≥‘𝑀))
114	113, 85	eleqtrrdi 2844	. . . . . . . . . 10 ⊢ (𝑘 ∈ (𝑀...(⌊‘𝑋)) → 𝑘 ∈ 𝑍)
115	83, 114, 89	syl2an 596	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀...(⌊‘𝑋))) → 𝐶 ∈ ℂ)
116	112, 115	fsumcl 15675	. . . . . . . 8 ⊢ (𝜑 → Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶 ∈ ℂ)
117	40	recnd 11238	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑆) → 𝐴 ∈ ℂ)
118	117	ralrimiva 3146	. . . . . . . . 9 ⊢ (𝜑 → ∀𝑥 ∈ 𝑆 𝐴 ∈ ℂ)
119		nfcsb1v 3917	. . . . . . . . . . 11 ⊢ Ⅎ𝑥⦋𝑌 / 𝑥⦌𝐴
120	119	nfel1 2919	. . . . . . . . . 10 ⊢ Ⅎ𝑥⦋𝑌 / 𝑥⦌𝐴 ∈ ℂ
121		csbeq1a 3906	. . . . . . . . . . 11 ⊢ (𝑥 = 𝑌 → 𝐴 = ⦋𝑌 / 𝑥⦌𝐴)
122	121	eleq1d 2818	. . . . . . . . . 10 ⊢ (𝑥 = 𝑌 → (𝐴 ∈ ℂ ↔ ⦋𝑌 / 𝑥⦌𝐴 ∈ ℂ))
123	120, 122	rspc 3600	. . . . . . . . 9 ⊢ (𝑌 ∈ 𝑆 → (∀𝑥 ∈ 𝑆 𝐴 ∈ ℂ → ⦋𝑌 / 𝑥⦌𝐴 ∈ ℂ))
124	4, 118, 123	sylc 65	. . . . . . . 8 ⊢ (𝜑 → ⦋𝑌 / 𝑥⦌𝐴 ∈ ℂ)
125	116, 51, 124	addsubd 11588	. . . . . . 7 ⊢ (𝜑 → ((Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶 + ⦋𝑌 / 𝑥⦌𝐵) − ⦋𝑌 / 𝑥⦌𝐴) = ((Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶 − ⦋𝑌 / 𝑥⦌𝐴) + ⦋𝑌 / 𝑥⦌𝐵))
126	125	adantr 481	. . . . . 6 ⊢ ((𝜑 ∧ 𝑌 = ((⌊‘𝑋) + 1)) → ((Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶 + ⦋𝑌 / 𝑥⦌𝐵) − ⦋𝑌 / 𝑥⦌𝐴) = ((Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶 − ⦋𝑌 / 𝑥⦌𝐴) + ⦋𝑌 / 𝑥⦌𝐵))
127	111, 126	eqtrd 2772	. . . . 5 ⊢ ((𝜑 ∧ 𝑌 = ((⌊‘𝑋) + 1)) → (Σ𝑘 ∈ (𝑀...(⌊‘𝑌))𝐶 − ⦋𝑌 / 𝑥⦌𝐴) = ((Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶 − ⦋𝑌 / 𝑥⦌𝐴) + ⦋𝑌 / 𝑥⦌𝐵))
128	59, 127	oveq12d 7423	. . . 4 ⊢ ((𝜑 ∧ 𝑌 = ((⌊‘𝑋) + 1)) → (((𝑌 − (⌊‘𝑌)) · ⦋𝑌 / 𝑥⦌𝐵) + (Σ𝑘 ∈ (𝑀...(⌊‘𝑌))𝐶 − ⦋𝑌 / 𝑥⦌𝐴)) = ((((𝑌 − (⌊‘𝑋)) · ⦋𝑌 / 𝑥⦌𝐵) − ⦋𝑌 / 𝑥⦌𝐵) + ((Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶 − ⦋𝑌 / 𝑥⦌𝐴) + ⦋𝑌 / 𝑥⦌𝐵)))
129	37, 51	mulcld 11230	. . . . . 6 ⊢ (𝜑 → ((𝑌 − (⌊‘𝑋)) · ⦋𝑌 / 𝑥⦌𝐵) ∈ ℂ)
130	129	adantr 481	. . . . 5 ⊢ ((𝜑 ∧ 𝑌 = ((⌊‘𝑋) + 1)) → ((𝑌 − (⌊‘𝑋)) · ⦋𝑌 / 𝑥⦌𝐵) ∈ ℂ)
131	51	adantr 481	. . . . 5 ⊢ ((𝜑 ∧ 𝑌 = ((⌊‘𝑋) + 1)) → ⦋𝑌 / 𝑥⦌𝐵 ∈ ℂ)
132	116, 124	subcld 11567	. . . . . 6 ⊢ (𝜑 → (Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶 − ⦋𝑌 / 𝑥⦌𝐴) ∈ ℂ)
133	132	adantr 481	. . . . 5 ⊢ ((𝜑 ∧ 𝑌 = ((⌊‘𝑋) + 1)) → (Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶 − ⦋𝑌 / 𝑥⦌𝐴) ∈ ℂ)
134	130, 131, 133	nppcan3d 11594	. . . 4 ⊢ ((𝜑 ∧ 𝑌 = ((⌊‘𝑋) + 1)) → ((((𝑌 − (⌊‘𝑋)) · ⦋𝑌 / 𝑥⦌𝐵) − ⦋𝑌 / 𝑥⦌𝐵) + ((Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶 − ⦋𝑌 / 𝑥⦌𝐴) + ⦋𝑌 / 𝑥⦌𝐵)) = (((𝑌 − (⌊‘𝑋)) · ⦋𝑌 / 𝑥⦌𝐵) + (Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶 − ⦋𝑌 / 𝑥⦌𝐴)))
135	128, 134	eqtrd 2772	. . 3 ⊢ ((𝜑 ∧ 𝑌 = ((⌊‘𝑋) + 1)) → (((𝑌 − (⌊‘𝑌)) · ⦋𝑌 / 𝑥⦌𝐵) + (Σ𝑘 ∈ (𝑀...(⌊‘𝑌))𝐶 − ⦋𝑌 / 𝑥⦌𝐴)) = (((𝑌 − (⌊‘𝑋)) · ⦋𝑌 / 𝑥⦌𝐵) + (Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶 − ⦋𝑌 / 𝑥⦌𝐴)))
136		dvfsumlem1.6	. . . 4 ⊢ (𝜑 → 𝑌 ≤ ((⌊‘𝑋) + 1))
137		peano2re 11383	. . . . . 6 ⊢ ((⌊‘𝑋) ∈ ℝ → ((⌊‘𝑋) + 1) ∈ ℝ)
138	10, 137	syl 17	. . . . 5 ⊢ (𝜑 → ((⌊‘𝑋) + 1) ∈ ℝ)
139	5, 138	leloed 11353	. . . 4 ⊢ (𝜑 → (𝑌 ≤ ((⌊‘𝑋) + 1) ↔ (𝑌 < ((⌊‘𝑋) + 1) ∨ 𝑌 = ((⌊‘𝑋) + 1))))
140	136, 139	mpbid 231	. . 3 ⊢ (𝜑 → (𝑌 < ((⌊‘𝑋) + 1) ∨ 𝑌 = ((⌊‘𝑋) + 1)))
141	24, 135, 140	mpjaodan 957	. 2 ⊢ (𝜑 → (((𝑌 − (⌊‘𝑌)) · ⦋𝑌 / 𝑥⦌𝐵) + (Σ𝑘 ∈ (𝑀...(⌊‘𝑌))𝐶 − ⦋𝑌 / 𝑥⦌𝐴)) = (((𝑌 − (⌊‘𝑋)) · ⦋𝑌 / 𝑥⦌𝐵) + (Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶 − ⦋𝑌 / 𝑥⦌𝐴)))
142		ovex 7438	. . 3 ⊢ (((𝑌 − (⌊‘𝑌)) · ⦋𝑌 / 𝑥⦌𝐵) + (Σ𝑘 ∈ (𝑀...(⌊‘𝑌))𝐶 − ⦋𝑌 / 𝑥⦌𝐴)) ∈ V
143		nfcv 2903	. . . 4 ⊢ Ⅎ𝑥𝑌
144		nfcv 2903	. . . . . 6 ⊢ Ⅎ𝑥(𝑌 − (⌊‘𝑌))
145		nfcv 2903	. . . . . 6 ⊢ Ⅎ𝑥 ·
146	144, 145, 46	nfov 7435	. . . . 5 ⊢ Ⅎ𝑥((𝑌 − (⌊‘𝑌)) · ⦋𝑌 / 𝑥⦌𝐵)
147		nfcv 2903	. . . . 5 ⊢ Ⅎ𝑥 +
148		nfcv 2903	. . . . . 6 ⊢ Ⅎ𝑥Σ𝑘 ∈ (𝑀...(⌊‘𝑌))𝐶
149		nfcv 2903	. . . . . 6 ⊢ Ⅎ𝑥 −
150	148, 149, 119	nfov 7435	. . . . 5 ⊢ Ⅎ𝑥(Σ𝑘 ∈ (𝑀...(⌊‘𝑌))𝐶 − ⦋𝑌 / 𝑥⦌𝐴)
151	146, 147, 150	nfov 7435	. . . 4 ⊢ Ⅎ𝑥(((𝑌 − (⌊‘𝑌)) · ⦋𝑌 / 𝑥⦌𝐵) + (Σ𝑘 ∈ (𝑀...(⌊‘𝑌))𝐶 − ⦋𝑌 / 𝑥⦌𝐴))
152		id 22	. . . . . . 7 ⊢ (𝑥 = 𝑌 → 𝑥 = 𝑌)
153		fveq2 6888	. . . . . . 7 ⊢ (𝑥 = 𝑌 → (⌊‘𝑥) = (⌊‘𝑌))
154	152, 153	oveq12d 7423	. . . . . 6 ⊢ (𝑥 = 𝑌 → (𝑥 − (⌊‘𝑥)) = (𝑌 − (⌊‘𝑌)))
155	154, 48	oveq12d 7423	. . . . 5 ⊢ (𝑥 = 𝑌 → ((𝑥 − (⌊‘𝑥)) · 𝐵) = ((𝑌 − (⌊‘𝑌)) · ⦋𝑌 / 𝑥⦌𝐵))
156	153	oveq2d 7421	. . . . . . 7 ⊢ (𝑥 = 𝑌 → (𝑀...(⌊‘𝑥)) = (𝑀...(⌊‘𝑌)))
157	156	sumeq1d 15643	. . . . . 6 ⊢ (𝑥 = 𝑌 → Σ𝑘 ∈ (𝑀...(⌊‘𝑥))𝐶 = Σ𝑘 ∈ (𝑀...(⌊‘𝑌))𝐶)
158	157, 121	oveq12d 7423	. . . . 5 ⊢ (𝑥 = 𝑌 → (Σ𝑘 ∈ (𝑀...(⌊‘𝑥))𝐶 − 𝐴) = (Σ𝑘 ∈ (𝑀...(⌊‘𝑌))𝐶 − ⦋𝑌 / 𝑥⦌𝐴))
159	155, 158	oveq12d 7423	. . . 4 ⊢ (𝑥 = 𝑌 → (((𝑥 − (⌊‘𝑥)) · 𝐵) + (Σ𝑘 ∈ (𝑀...(⌊‘𝑥))𝐶 − 𝐴)) = (((𝑌 − (⌊‘𝑌)) · ⦋𝑌 / 𝑥⦌𝐵) + (Σ𝑘 ∈ (𝑀...(⌊‘𝑌))𝐶 − ⦋𝑌 / 𝑥⦌𝐴)))
160		dvfsum.h	. . . 4 ⊢ 𝐻 = (𝑥 ∈ 𝑆 ↦ (((𝑥 − (⌊‘𝑥)) · 𝐵) + (Σ𝑘 ∈ (𝑀...(⌊‘𝑥))𝐶 − 𝐴)))
161	143, 151, 159, 160	fvmptf 7016	. . 3 ⊢ ((𝑌 ∈ 𝑆 ∧ (((𝑌 − (⌊‘𝑌)) · ⦋𝑌 / 𝑥⦌𝐵) + (Σ𝑘 ∈ (𝑀...(⌊‘𝑌))𝐶 − ⦋𝑌 / 𝑥⦌𝐴)) ∈ V) → (𝐻‘𝑌) = (((𝑌 − (⌊‘𝑌)) · ⦋𝑌 / 𝑥⦌𝐵) + (Σ𝑘 ∈ (𝑀...(⌊‘𝑌))𝐶 − ⦋𝑌 / 𝑥⦌𝐴)))
162	4, 142, 161	sylancl 586	. 2 ⊢ (𝜑 → (𝐻‘𝑌) = (((𝑌 − (⌊‘𝑌)) · ⦋𝑌 / 𝑥⦌𝐵) + (Σ𝑘 ∈ (𝑀...(⌊‘𝑌))𝐶 − ⦋𝑌 / 𝑥⦌𝐴)))
163	129, 124, 116	subadd23d 11589	. 2 ⊢ (𝜑 → ((((𝑌 − (⌊‘𝑋)) · ⦋𝑌 / 𝑥⦌𝐵) − ⦋𝑌 / 𝑥⦌𝐴) + Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶) = (((𝑌 − (⌊‘𝑋)) · ⦋𝑌 / 𝑥⦌𝐵) + (Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶 − ⦋𝑌 / 𝑥⦌𝐴)))
164	141, 162, 163	3eqtr4d 2782	1 ⊢ (𝜑 → (𝐻‘𝑌) = ((((𝑌 − (⌊‘𝑋)) · ⦋𝑌 / 𝑥⦌𝐵) − ⦋𝑌 / 𝑥⦌𝐴) + Σ𝑘 ∈ (𝑀...(⌊‘𝑋))𝐶))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 205 ∧ wa 396 ∨ wo 845 ∧ w3a 1087 = wceq 1541 ∈ wcel 2106 ∀wral 3061 Vcvv 3474 ⦋csb 3892 ⊆ wss 3947 class class class wbr 5147 ↦ cmpt 5230 ‘cfv 6540 (class class class)co 7405 ℂcc 11104 ℝcr 11105 1c1 11107 + caddc 11109 · cmul 11111 +∞cpnf 11241 ℝ^*cxr 11243 < clt 11244 ≤ cle 11245 − cmin 11440 ℤcz 12554 ℤ_≥cuz 12818 (,)cioo 13320 ...cfz 13480 ⌊cfl 13751 Σcsu 15628 D cdv 25371

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 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2703 ax-rep 5284 ax-sep 5298 ax-nul 5305 ax-pow 5362 ax-pr 5426 ax-un 7721 ax-inf2 9632 ax-cnex 11162 ax-resscn 11163 ax-1cn 11164 ax-icn 11165 ax-addcl 11166 ax-addrcl 11167 ax-mulcl 11168 ax-mulrcl 11169 ax-mulcom 11170 ax-addass 11171 ax-mulass 11172 ax-distr 11173 ax-i2m1 11174 ax-1ne0 11175 ax-1rid 11176 ax-rnegex 11177 ax-rrecex 11178 ax-cnre 11179 ax-pre-lttri 11180 ax-pre-lttrn 11181 ax-pre-ltadd 11182 ax-pre-mulgt0 11183 ax-pre-sup 11184

This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2534 df-eu 2563 df-clab 2710 df-cleq 2724 df-clel 2810 df-nfc 2885 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-rmo 3376 df-reu 3377 df-rab 3433 df-v 3476 df-sbc 3777 df-csb 3893 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-pss 3966 df-nul 4322 df-if 4528 df-pw 4603 df-sn 4628 df-pr 4630 df-tp 4632 df-op 4634 df-uni 4908 df-int 4950 df-iun 4998 df-iin 4999 df-br 5148 df-opab 5210 df-mpt 5231 df-tr 5265 df-id 5573 df-eprel 5579 df-po 5587 df-so 5588 df-fr 5630 df-se 5631 df-we 5632 df-xp 5681 df-rel 5682 df-cnv 5683 df-co 5684 df-dm 5685 df-rn 5686 df-res 5687 df-ima 5688 df-pred 6297 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6492 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-isom 6549 df-riota 7361 df-ov 7408 df-oprab 7409 df-mpo 7410 df-om 7852 df-1st 7971 df-2nd 7972 df-frecs 8262 df-wrecs 8293 df-recs 8367 df-rdg 8406 df-1o 8462 df-er 8699 df-map 8818 df-pm 8819 df-en 8936 df-dom 8937 df-sdom 8938 df-fin 8939 df-fi 9402 df-sup 9433 df-inf 9434 df-oi 9501 df-card 9930 df-pnf 11246 df-mnf 11247 df-xr 11248 df-ltxr 11249 df-le 11250 df-sub 11442 df-neg 11443 df-div 11868 df-nn 12209 df-2 12271 df-3 12272 df-4 12273 df-5 12274 df-6 12275 df-7 12276 df-8 12277 df-9 12278 df-n0 12469 df-z 12555 df-dec 12674 df-uz 12819 df-q 12929 df-rp 12971 df-xneg 13088 df-xadd 13089 df-xmul 13090 df-ioo 13324 df-icc 13327 df-fz 13481 df-fzo 13624 df-fl 13753 df-seq 13963 df-exp 14024 df-hash 14287 df-cj 15042 df-re 15043 df-im 15044 df-sqrt 15178 df-abs 15179 df-clim 15428 df-sum 15629 df-struct 17076 df-slot 17111 df-ndx 17123 df-base 17141 df-plusg 17206 df-mulr 17207 df-starv 17208 df-tset 17212 df-ple 17213 df-ds 17215 df-unif 17216 df-rest 17364 df-topn 17365 df-topgen 17385 df-psmet 20928 df-xmet 20929 df-met 20930 df-bl 20931 df-mopn 20932 df-fbas 20933 df-fg 20934 df-cnfld 20937 df-top 22387 df-topon 22404 df-topsp 22426 df-bases 22440 df-cld 22514 df-ntr 22515 df-cls 22516 df-nei 22593 df-lp 22631 df-perf 22632 df-cn 22722 df-cnp 22723 df-haus 22810 df-fil 23341 df-fm 23433 df-flim 23434 df-flf 23435 df-xms 23817 df-ms 23818 df-cncf 24385 df-limc 25374 df-dv 25375

This theorem is referenced by: dvfsumlem2 25535 gg-dvfsumlem2 35171

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