Theorem telgsums 18213

Description: Telescoping finitely supported group sum ranging over nonnegative integers, using explicit substitution. (Contributed by AV, 24-Oct-2019.)

Hypotheses

Ref	Expression
telgsums.b	⊢ 𝐵 = (Base‘𝐺)
telgsums.g	⊢ (𝜑 → 𝐺 ∈ Abel)
telgsums.m	⊢ − = (-g‘𝐺)
telgsums.0	⊢ 0 = (0g‘𝐺)
telgsums.f	⊢ (𝜑 → ∀𝑘 ∈ ℕ0 𝐶 ∈ 𝐵)
telgsums.s	⊢ (𝜑 → 𝑆 ∈ ℕ0)
telgsums.u	⊢ (𝜑 → ∀𝑘 ∈ ℕ0 (𝑆 < 𝑘 → 𝐶 = 0 ))

Assertion

Ref	Expression
telgsums	⊢ (𝜑 → (𝐺 Σg (𝑖 ∈ ℕ0 ↦ (⦋𝑖 / 𝑘⦌𝐶 − ⦋(𝑖 + 1) / 𝑘⦌𝐶))) = ⦋0 / 𝑘⦌𝐶)

Distinct variable groups:   𝐵,𝑖,𝑘   𝐶,𝑖   𝑖,𝐺   𝑆,𝑖,𝑘   0 ,𝑖,𝑘   𝜑,𝑖   − ,𝑖

Allowed substitution hints:   𝜑(𝑘)   𝐶(𝑘)   𝐺(𝑘)   − (𝑘)

Proof of Theorem telgsums

Step	Hyp	Ref	Expression
1		telgsums.b	. . 3 ⊢ 𝐵 = (Base‘𝐺)
2		telgsums.0	. . 3 ⊢ 0 = (0g‘𝐺)
3		telgsums.g	. . . 4 ⊢ (𝜑 → 𝐺 ∈ Abel)
4		ablcmn 18022	. . . 4 ⊢ (𝐺 ∈ Abel → 𝐺 ∈ CMnd)
5	3, 4	syl 17	. . 3 ⊢ (𝜑 → 𝐺 ∈ CMnd)
6		ablgrp 18021	. . . . . . 7 ⊢ (𝐺 ∈ Abel → 𝐺 ∈ Grp)
7	3, 6	syl 17	. . . . . 6 ⊢ (𝜑 → 𝐺 ∈ Grp)
8	7	adantr 480	. . . . 5 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → 𝐺 ∈ Grp)
9		simpr 476	. . . . . 6 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → 𝑖 ∈ ℕ0)
10		telgsums.f	. . . . . . 7 ⊢ (𝜑 → ∀𝑘 ∈ ℕ0 𝐶 ∈ 𝐵)
11	10	adantr 480	. . . . . 6 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → ∀𝑘 ∈ ℕ0 𝐶 ∈ 𝐵)
12		rspcsbela 3958	. . . . . 6 ⊢ ((𝑖 ∈ ℕ0 ∧ ∀𝑘 ∈ ℕ0 𝐶 ∈ 𝐵) → ⦋𝑖 / 𝑘⦌𝐶 ∈ 𝐵)
13	9, 11, 12	syl2anc 691	. . . . 5 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → ⦋𝑖 / 𝑘⦌𝐶 ∈ 𝐵)
14		peano2nn0 11210	. . . . . 6 ⊢ (𝑖 ∈ ℕ0 → (𝑖 + 1) ∈ ℕ0)
15		rspcsbela 3958	. . . . . 6 ⊢ (((𝑖 + 1) ∈ ℕ0 ∧ ∀𝑘 ∈ ℕ0 𝐶 ∈ 𝐵) → ⦋(𝑖 + 1) / 𝑘⦌𝐶 ∈ 𝐵)
16	14, 10, 15	syl2anr 494	. . . . 5 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → ⦋(𝑖 + 1) / 𝑘⦌𝐶 ∈ 𝐵)
17		telgsums.m	. . . . . 6 ⊢ − = (-g‘𝐺)
18	1, 17	grpsubcl 17318	. . . . 5 ⊢ ((𝐺 ∈ Grp ∧ ⦋𝑖 / 𝑘⦌𝐶 ∈ 𝐵 ∧ ⦋(𝑖 + 1) / 𝑘⦌𝐶 ∈ 𝐵) → (⦋𝑖 / 𝑘⦌𝐶 − ⦋(𝑖 + 1) / 𝑘⦌𝐶) ∈ 𝐵)
19	8, 13, 16, 18	syl3anc 1318	. . . 4 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → (⦋𝑖 / 𝑘⦌𝐶 − ⦋(𝑖 + 1) / 𝑘⦌𝐶) ∈ 𝐵)
20	19	ralrimiva 2949	. . 3 ⊢ (𝜑 → ∀𝑖 ∈ ℕ0 (⦋𝑖 / 𝑘⦌𝐶 − ⦋(𝑖 + 1) / 𝑘⦌𝐶) ∈ 𝐵)
21		telgsums.s	. . 3 ⊢ (𝜑 → 𝑆 ∈ ℕ0)
22		telgsums.u	. . . . . . . . 9 ⊢ (𝜑 → ∀𝑘 ∈ ℕ0 (𝑆 < 𝑘 → 𝐶 = 0 ))
23		rspsbca 3485	. . . . . . . . . . 11 ⊢ ((𝑖 ∈ ℕ0 ∧ ∀𝑘 ∈ ℕ0 (𝑆 < 𝑘 → 𝐶 = 0 )) → [𝑖 / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ))
24		vex 3176	. . . . . . . . . . . 12 ⊢ 𝑖 ∈ V
25		sbcimg 3444	. . . . . . . . . . . . 13 ⊢ (𝑖 ∈ V → ([𝑖 / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ) ↔ ([𝑖 / 𝑘]𝑆 < 𝑘 → [𝑖 / 𝑘]𝐶 = 0 )))
26		sbcbr2g 4640	. . . . . . . . . . . . . . 15 ⊢ (𝑖 ∈ V → ([𝑖 / 𝑘]𝑆 < 𝑘 ↔ 𝑆 < ⦋𝑖 / 𝑘⦌𝑘))
27		csbvarg 3955	. . . . . . . . . . . . . . . 16 ⊢ (𝑖 ∈ V → ⦋𝑖 / 𝑘⦌𝑘 = 𝑖)
28	27	breq2d 4595	. . . . . . . . . . . . . . 15 ⊢ (𝑖 ∈ V → (𝑆 < ⦋𝑖 / 𝑘⦌𝑘 ↔ 𝑆 < 𝑖))
29	26, 28	bitrd 267	. . . . . . . . . . . . . 14 ⊢ (𝑖 ∈ V → ([𝑖 / 𝑘]𝑆 < 𝑘 ↔ 𝑆 < 𝑖))
30		sbceq1g 3940	. . . . . . . . . . . . . 14 ⊢ (𝑖 ∈ V → ([𝑖 / 𝑘]𝐶 = 0 ↔ ⦋𝑖 / 𝑘⦌𝐶 = 0 ))
31	29, 30	imbi12d 333	. . . . . . . . . . . . 13 ⊢ (𝑖 ∈ V → (([𝑖 / 𝑘]𝑆 < 𝑘 → [𝑖 / 𝑘]𝐶 = 0 ) ↔ (𝑆 < 𝑖 → ⦋𝑖 / 𝑘⦌𝐶 = 0 )))
32	25, 31	bitrd 267	. . . . . . . . . . . 12 ⊢ (𝑖 ∈ V → ([𝑖 / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ) ↔ (𝑆 < 𝑖 → ⦋𝑖 / 𝑘⦌𝐶 = 0 )))
33	24, 32	ax-mp 5	. . . . . . . . . . 11 ⊢ ([𝑖 / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ) ↔ (𝑆 < 𝑖 → ⦋𝑖 / 𝑘⦌𝐶 = 0 ))
34	23, 33	sylib 207	. . . . . . . . . 10 ⊢ ((𝑖 ∈ ℕ0 ∧ ∀𝑘 ∈ ℕ0 (𝑆 < 𝑘 → 𝐶 = 0 )) → (𝑆 < 𝑖 → ⦋𝑖 / 𝑘⦌𝐶 = 0 ))
35	34	expcom 450	. . . . . . . . 9 ⊢ (∀𝑘 ∈ ℕ0 (𝑆 < 𝑘 → 𝐶 = 0 ) → (𝑖 ∈ ℕ0 → (𝑆 < 𝑖 → ⦋𝑖 / 𝑘⦌𝐶 = 0 )))
36	22, 35	syl 17	. . . . . . . 8 ⊢ (𝜑 → (𝑖 ∈ ℕ0 → (𝑆 < 𝑖 → ⦋𝑖 / 𝑘⦌𝐶 = 0 )))
37	36	imp31 447	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → ⦋𝑖 / 𝑘⦌𝐶 = 0 )
38	21	nn0red 11229	. . . . . . . . . . . . 13 ⊢ (𝜑 → 𝑆 ∈ ℝ)
39	38	adantr 480	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → 𝑆 ∈ ℝ)
40	39	adantr 480	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → 𝑆 ∈ ℝ)
41		nn0re 11178	. . . . . . . . . . . 12 ⊢ (𝑖 ∈ ℕ0 → 𝑖 ∈ ℝ)
42	41	ad2antlr 759	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → 𝑖 ∈ ℝ)
43	14	ad2antlr 759	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → (𝑖 + 1) ∈ ℕ0)
44	43	nn0red 11229	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → (𝑖 + 1) ∈ ℝ)
45		simpr 476	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → 𝑆 < 𝑖)
46	42	ltp1d 10833	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → 𝑖 < (𝑖 + 1))
47	40, 42, 44, 45, 46	lttrd 10077	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → 𝑆 < (𝑖 + 1))
48	47	ex 449	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → (𝑆 < 𝑖 → 𝑆 < (𝑖 + 1)))
49		rspsbca 3485	. . . . . . . . . . 11 ⊢ (((𝑖 + 1) ∈ ℕ0 ∧ ∀𝑘 ∈ ℕ0 (𝑆 < 𝑘 → 𝐶 = 0 )) → [(𝑖 + 1) / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ))
50		ovex 6577	. . . . . . . . . . . 12 ⊢ (𝑖 + 1) ∈ V
51		sbcimg 3444	. . . . . . . . . . . . 13 ⊢ ((𝑖 + 1) ∈ V → ([(𝑖 + 1) / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ) ↔ ([(𝑖 + 1) / 𝑘]𝑆 < 𝑘 → [(𝑖 + 1) / 𝑘]𝐶 = 0 )))
52		sbcbr2g 4640	. . . . . . . . . . . . . . 15 ⊢ ((𝑖 + 1) ∈ V → ([(𝑖 + 1) / 𝑘]𝑆 < 𝑘 ↔ 𝑆 < ⦋(𝑖 + 1) / 𝑘⦌𝑘))
53		csbvarg 3955	. . . . . . . . . . . . . . . 16 ⊢ ((𝑖 + 1) ∈ V → ⦋(𝑖 + 1) / 𝑘⦌𝑘 = (𝑖 + 1))
54	53	breq2d 4595	. . . . . . . . . . . . . . 15 ⊢ ((𝑖 + 1) ∈ V → (𝑆 < ⦋(𝑖 + 1) / 𝑘⦌𝑘 ↔ 𝑆 < (𝑖 + 1)))
55	52, 54	bitrd 267	. . . . . . . . . . . . . 14 ⊢ ((𝑖 + 1) ∈ V → ([(𝑖 + 1) / 𝑘]𝑆 < 𝑘 ↔ 𝑆 < (𝑖 + 1)))
56		sbceq1g 3940	. . . . . . . . . . . . . 14 ⊢ ((𝑖 + 1) ∈ V → ([(𝑖 + 1) / 𝑘]𝐶 = 0 ↔ ⦋(𝑖 + 1) / 𝑘⦌𝐶 = 0 ))
57	55, 56	imbi12d 333	. . . . . . . . . . . . 13 ⊢ ((𝑖 + 1) ∈ V → (([(𝑖 + 1) / 𝑘]𝑆 < 𝑘 → [(𝑖 + 1) / 𝑘]𝐶 = 0 ) ↔ (𝑆 < (𝑖 + 1) → ⦋(𝑖 + 1) / 𝑘⦌𝐶 = 0 )))
58	51, 57	bitrd 267	. . . . . . . . . . . 12 ⊢ ((𝑖 + 1) ∈ V → ([(𝑖 + 1) / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ) ↔ (𝑆 < (𝑖 + 1) → ⦋(𝑖 + 1) / 𝑘⦌𝐶 = 0 )))
59	50, 58	ax-mp 5	. . . . . . . . . . 11 ⊢ ([(𝑖 + 1) / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ) ↔ (𝑆 < (𝑖 + 1) → ⦋(𝑖 + 1) / 𝑘⦌𝐶 = 0 ))
60	49, 59	sylib 207	. . . . . . . . . 10 ⊢ (((𝑖 + 1) ∈ ℕ0 ∧ ∀𝑘 ∈ ℕ0 (𝑆 < 𝑘 → 𝐶 = 0 )) → (𝑆 < (𝑖 + 1) → ⦋(𝑖 + 1) / 𝑘⦌𝐶 = 0 ))
61	14, 22, 60	syl2anr 494	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → (𝑆 < (𝑖 + 1) → ⦋(𝑖 + 1) / 𝑘⦌𝐶 = 0 ))
62	48, 61	syld 46	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → (𝑆 < 𝑖 → ⦋(𝑖 + 1) / 𝑘⦌𝐶 = 0 ))
63	62	imp 444	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → ⦋(𝑖 + 1) / 𝑘⦌𝐶 = 0 )
64	37, 63	oveq12d 6567	. . . . . 6 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → (⦋𝑖 / 𝑘⦌𝐶 − ⦋(𝑖 + 1) / 𝑘⦌𝐶) = ( 0 − 0 ))
65	8	adantr 480	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → 𝐺 ∈ Grp)
66	1, 2	grpidcl 17273	. . . . . . . 8 ⊢ (𝐺 ∈ Grp → 0 ∈ 𝐵)
67	65, 66	jccir 560	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → (𝐺 ∈ Grp ∧ 0 ∈ 𝐵))
68	1, 2, 17	grpsubid 17322	. . . . . . 7 ⊢ ((𝐺 ∈ Grp ∧ 0 ∈ 𝐵) → ( 0 − 0 ) = 0 )
69	67, 68	syl 17	. . . . . 6 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → ( 0 − 0 ) = 0 )
70	64, 69	eqtrd 2644	. . . . 5 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → (⦋𝑖 / 𝑘⦌𝐶 − ⦋(𝑖 + 1) / 𝑘⦌𝐶) = 0 )
71	70	ex 449	. . . 4 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → (𝑆 < 𝑖 → (⦋𝑖 / 𝑘⦌𝐶 − ⦋(𝑖 + 1) / 𝑘⦌𝐶) = 0 ))
72	71	ralrimiva 2949	. . 3 ⊢ (𝜑 → ∀𝑖 ∈ ℕ0 (𝑆 < 𝑖 → (⦋𝑖 / 𝑘⦌𝐶 − ⦋(𝑖 + 1) / 𝑘⦌𝐶) = 0 ))
73	1, 2, 5, 20, 21, 72	gsummptnn0fzv 18206	. 2 ⊢ (𝜑 → (𝐺 Σg (𝑖 ∈ ℕ0 ↦ (⦋𝑖 / 𝑘⦌𝐶 − ⦋(𝑖 + 1) / 𝑘⦌𝐶))) = (𝐺 Σg (𝑖 ∈ (0...𝑆) ↦ (⦋𝑖 / 𝑘⦌𝐶 − ⦋(𝑖 + 1) / 𝑘⦌𝐶))))
74		fzssuz 12253	. . . . . 6 ⊢ (0...(𝑆 + 1)) ⊆ (ℤ≥‘0)
75	74	a1i 11	. . . . 5 ⊢ (𝜑 → (0...(𝑆 + 1)) ⊆ (ℤ≥‘0))
76		nn0uz 11598	. . . . 5 ⊢ ℕ0 = (ℤ≥‘0)
77	75, 76	syl6sseqr 3615	. . . 4 ⊢ (𝜑 → (0...(𝑆 + 1)) ⊆ ℕ0)
78		ssralv 3629	. . . 4 ⊢ ((0...(𝑆 + 1)) ⊆ ℕ0 → (∀𝑘 ∈ ℕ0 𝐶 ∈ 𝐵 → ∀𝑘 ∈ (0...(𝑆 + 1))𝐶 ∈ 𝐵))
79	77, 10, 78	sylc 63	. . 3 ⊢ (𝜑 → ∀𝑘 ∈ (0...(𝑆 + 1))𝐶 ∈ 𝐵)
80	1, 3, 17, 21, 79	telgsumfz0s 18211	. 2 ⊢ (𝜑 → (𝐺 Σg (𝑖 ∈ (0...𝑆) ↦ (⦋𝑖 / 𝑘⦌𝐶 − ⦋(𝑖 + 1) / 𝑘⦌𝐶))) = (⦋0 / 𝑘⦌𝐶 − ⦋(𝑆 + 1) / 𝑘⦌𝐶))
81		peano2nn0 11210	. . . . . 6 ⊢ (𝑆 ∈ ℕ0 → (𝑆 + 1) ∈ ℕ0)
82	21, 81	syl 17	. . . . 5 ⊢ (𝜑 → (𝑆 + 1) ∈ ℕ0)
83	38	ltp1d 10833	. . . . 5 ⊢ (𝜑 → 𝑆 < (𝑆 + 1))
84		rspsbca 3485	. . . . . . 7 ⊢ (((𝑆 + 1) ∈ ℕ0 ∧ ∀𝑘 ∈ ℕ0 (𝑆 < 𝑘 → 𝐶 = 0 )) → [(𝑆 + 1) / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ))
85		ovex 6577	. . . . . . . 8 ⊢ (𝑆 + 1) ∈ V
86		sbcimg 3444	. . . . . . . . 9 ⊢ ((𝑆 + 1) ∈ V → ([(𝑆 + 1) / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ) ↔ ([(𝑆 + 1) / 𝑘]𝑆 < 𝑘 → [(𝑆 + 1) / 𝑘]𝐶 = 0 )))
87		sbcbr2g 4640	. . . . . . . . . . 11 ⊢ ((𝑆 + 1) ∈ V → ([(𝑆 + 1) / 𝑘]𝑆 < 𝑘 ↔ 𝑆 < ⦋(𝑆 + 1) / 𝑘⦌𝑘))
88		csbvarg 3955	. . . . . . . . . . . 12 ⊢ ((𝑆 + 1) ∈ V → ⦋(𝑆 + 1) / 𝑘⦌𝑘 = (𝑆 + 1))
89	88	breq2d 4595	. . . . . . . . . . 11 ⊢ ((𝑆 + 1) ∈ V → (𝑆 < ⦋(𝑆 + 1) / 𝑘⦌𝑘 ↔ 𝑆 < (𝑆 + 1)))
90	87, 89	bitrd 267	. . . . . . . . . 10 ⊢ ((𝑆 + 1) ∈ V → ([(𝑆 + 1) / 𝑘]𝑆 < 𝑘 ↔ 𝑆 < (𝑆 + 1)))
91		sbceq1g 3940	. . . . . . . . . 10 ⊢ ((𝑆 + 1) ∈ V → ([(𝑆 + 1) / 𝑘]𝐶 = 0 ↔ ⦋(𝑆 + 1) / 𝑘⦌𝐶 = 0 ))
92	90, 91	imbi12d 333	. . . . . . . . 9 ⊢ ((𝑆 + 1) ∈ V → (([(𝑆 + 1) / 𝑘]𝑆 < 𝑘 → [(𝑆 + 1) / 𝑘]𝐶 = 0 ) ↔ (𝑆 < (𝑆 + 1) → ⦋(𝑆 + 1) / 𝑘⦌𝐶 = 0 )))
93	86, 92	bitrd 267	. . . . . . . 8 ⊢ ((𝑆 + 1) ∈ V → ([(𝑆 + 1) / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ) ↔ (𝑆 < (𝑆 + 1) → ⦋(𝑆 + 1) / 𝑘⦌𝐶 = 0 )))
94	85, 93	ax-mp 5	. . . . . . 7 ⊢ ([(𝑆 + 1) / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ) ↔ (𝑆 < (𝑆 + 1) → ⦋(𝑆 + 1) / 𝑘⦌𝐶 = 0 ))
95	84, 94	sylib 207	. . . . . 6 ⊢ (((𝑆 + 1) ∈ ℕ0 ∧ ∀𝑘 ∈ ℕ0 (𝑆 < 𝑘 → 𝐶 = 0 )) → (𝑆 < (𝑆 + 1) → ⦋(𝑆 + 1) / 𝑘⦌𝐶 = 0 ))
96	95	ex 449	. . . . 5 ⊢ ((𝑆 + 1) ∈ ℕ0 → (∀𝑘 ∈ ℕ0 (𝑆 < 𝑘 → 𝐶 = 0 ) → (𝑆 < (𝑆 + 1) → ⦋(𝑆 + 1) / 𝑘⦌𝐶 = 0 )))
97	82, 22, 83, 96	syl3c 64	. . . 4 ⊢ (𝜑 → ⦋(𝑆 + 1) / 𝑘⦌𝐶 = 0 )
98	97	oveq2d 6565	. . 3 ⊢ (𝜑 → (⦋0 / 𝑘⦌𝐶 − ⦋(𝑆 + 1) / 𝑘⦌𝐶) = (⦋0 / 𝑘⦌𝐶 − 0 ))
99		0nn0 11184	. . . . . 6 ⊢ 0 ∈ ℕ0
100	99	a1i 11	. . . . 5 ⊢ (𝜑 → 0 ∈ ℕ0)
101		rspcsbela 3958	. . . . 5 ⊢ ((0 ∈ ℕ0 ∧ ∀𝑘 ∈ ℕ0 𝐶 ∈ 𝐵) → ⦋0 / 𝑘⦌𝐶 ∈ 𝐵)
102	100, 10, 101	syl2anc 691	. . . 4 ⊢ (𝜑 → ⦋0 / 𝑘⦌𝐶 ∈ 𝐵)
103	1, 2, 17	grpsubid1 17323	. . . 4 ⊢ ((𝐺 ∈ Grp ∧ ⦋0 / 𝑘⦌𝐶 ∈ 𝐵) → (⦋0 / 𝑘⦌𝐶 − 0 ) = ⦋0 / 𝑘⦌𝐶)
104	7, 102, 103	syl2anc 691	. . 3 ⊢ (𝜑 → (⦋0 / 𝑘⦌𝐶 − 0 ) = ⦋0 / 𝑘⦌𝐶)
105	98, 104	eqtrd 2644	. 2 ⊢ (𝜑 → (⦋0 / 𝑘⦌𝐶 − ⦋(𝑆 + 1) / 𝑘⦌𝐶) = ⦋0 / 𝑘⦌𝐶)
106	73, 80, 105	3eqtrd 2648	1 ⊢ (𝜑 → (𝐺 Σg (𝑖 ∈ ℕ0 ↦ (⦋𝑖 / 𝑘⦌𝐶 − ⦋(𝑖 + 1) / 𝑘⦌𝐶))) = ⦋0 / 𝑘⦌𝐶)

Syntax hints:   → wi 4   ↔ wb 195   ∧ wa 383   = wceq 1475   ∈ wcel 1977  ∀wral 2896  Vcvv 3173  [wsbc 3402  ⦋csb 3499   ⊆ wss 3540   class class class wbr 4583   ↦ cmpt 4643  ‘cfv 5804  (class class class)co 6549  ℝcr 9814  0cc0 9815  1c1 9816   + caddc 9818   < clt 9953  ℕ₀cn0 11169  ℤ_≥cuz 11563  ...cfz 12197  Basecbs 15695  0_gc0g 15923   Σ_g cgsu 15924  Grpcgrp 17245  -_gcsg 17247  CMndccmn 18016  Abelcabl 18017

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1713  ax-4 1728  ax-5 1827  ax-6 1875  ax-7 1922  ax-8 1979  ax-9 1986  ax-10 2006  ax-11 2021  ax-12 2034  ax-13 2234  ax-ext 2590  ax-rep 4699  ax-sep 4709  ax-nul 4717  ax-pow 4769  ax-pr 4833  ax-un 6847  ax-inf2 8421  ax-cnex 9871  ax-resscn 9872  ax-1cn 9873  ax-icn 9874  ax-addcl 9875  ax-addrcl 9876  ax-mulcl 9877  ax-mulrcl 9878  ax-mulcom 9879  ax-addass 9880  ax-mulass 9881  ax-distr 9882  ax-i2m1 9883  ax-1ne0 9884  ax-1rid 9885  ax-rnegex 9886  ax-rrecex 9887  ax-cnre 9888  ax-pre-lttri 9889  ax-pre-lttrn 9890  ax-pre-ltadd 9891  ax-pre-mulgt0 9892

This theorem depends on definitions:  df-bi 196  df-or 384  df-an 385  df-3or 1032  df-3an 1033  df-tru 1478  df-fal 1481  df-ex 1696  df-nf 1701  df-sb 1868  df-eu 2462  df-mo 2463  df-clab 2597  df-cleq 2603  df-clel 2606  df-nfc 2740  df-ne 2782  df-nel 2783  df-ral 2901  df-rex 2902  df-reu 2903  df-rmo 2904  df-rab 2905  df-v 3175  df-sbc 3403  df-csb 3500  df-dif 3543  df-un 3545  df-in 3547  df-ss 3554  df-pss 3556  df-nul 3875  df-if 4037  df-pw 4110  df-sn 4126  df-pr 4128  df-tp 4130  df-op 4132  df-uni 4373  df-int 4411  df-iun 4457  df-iin 4458  df-br 4584  df-opab 4644  df-mpt 4645  df-tr 4681  df-eprel 4949  df-id 4953  df-po 4959  df-so 4960  df-fr 4997  df-se 4998  df-we 4999  df-xp 5044  df-rel 5045  df-cnv 5046  df-co 5047  df-dm 5048  df-rn 5049  df-res 5050  df-ima 5051  df-pred 5597  df-ord 5643  df-on 5644  df-lim 5645  df-suc 5646  df-iota 5768  df-fun 5806  df-fn 5807  df-f 5808  df-f1 5809  df-fo 5810  df-f1o 5811  df-fv 5812  df-isom 5813  df-riota 6511  df-ov 6552  df-oprab 6553  df-mpt2 6554  df-of 6795  df-om 6958  df-1st 7059  df-2nd 7060  df-supp 7183  df-wrecs 7294  df-recs 7355  df-rdg 7393  df-1o 7447  df-oadd 7451  df-er 7629  df-map 7746  df-en 7842  df-dom 7843  df-sdom 7844  df-fin 7845  df-fsupp 8159  df-oi 8298  df-card 8648  df-pnf 9955  df-mnf 9956  df-xr 9957  df-ltxr 9958  df-le 9959  df-sub 10147  df-neg 10148  df-nn 10898  df-2 10956  df-n0 11170  df-z 11255  df-uz 11564  df-fz 12198  df-fzo 12335  df-seq 12664  df-hash 12980  df-ndx 15698  df-slot 15699  df-base 15700  df-sets 15701  df-ress 15702  df-plusg 15781  df-0g 15925  df-gsum 15926  df-mre 16069  df-mrc 16070  df-acs 16072  df-mgm 17065  df-sgrp 17107  df-mnd 17118  df-submnd 17159  df-grp 17248  df-minusg 17249  df-sbg 17250  df-mulg 17364  df-cntz 17573  df-cmn 18018  df-abl 18019

This theorem is referenced by:  telgsum  18214