Theorem telgsums 20035

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 19829	. . . 4 ⊢ (𝐺 ∈ Abel → 𝐺 ∈ CMnd)
5	3, 4	syl 17	. . 3 ⊢ (𝜑 → 𝐺 ∈ CMnd)
6		ablgrp 19827	. . . . . . 7 ⊢ (𝐺 ∈ Abel → 𝐺 ∈ Grp)
7	3, 6	syl 17	. . . . . 6 ⊢ (𝜑 → 𝐺 ∈ Grp)
8	7	adantr 484	. . . . 5 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → 𝐺 ∈ Grp)
9		simpr 488	. . . . . 6 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → 𝑖 ∈ ℕ0)
10		telgsums.f	. . . . . . 7 ⊢ (𝜑 → ∀𝑘 ∈ ℕ0 𝐶 ∈ 𝐵)
11	10	adantr 484	. . . . . 6 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → ∀𝑘 ∈ ℕ0 𝐶 ∈ 𝐵)
12		rspcsbela 4394	. . . . . 6 ⊢ ((𝑖 ∈ ℕ0 ∧ ∀𝑘 ∈ ℕ0 𝐶 ∈ 𝐵) → ⦋𝑖 / 𝑘⦌𝐶 ∈ 𝐵)
13	9, 11, 12	syl2anc 593	. . . . 5 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → ⦋𝑖 / 𝑘⦌𝐶 ∈ 𝐵)
14		peano2nn0 12523	. . . . . 6 ⊢ (𝑖 ∈ ℕ0 → (𝑖 + 1) ∈ ℕ0)
15		rspcsbela 4394	. . . . . 6 ⊢ (((𝑖 + 1) ∈ ℕ0 ∧ ∀𝑘 ∈ ℕ0 𝐶 ∈ 𝐵) → ⦋(𝑖 + 1) / 𝑘⦌𝐶 ∈ 𝐵)
16	14, 10, 15	syl2anr 606	. . . . 5 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → ⦋(𝑖 + 1) / 𝑘⦌𝐶 ∈ 𝐵)
17		telgsums.m	. . . . . 6 ⊢ − = (-g‘𝐺)
18	1, 17	grpsubcl 19064	. . . . 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 1392	. . . 4 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → (⦋𝑖 / 𝑘⦌𝐶 − ⦋(𝑖 + 1) / 𝑘⦌𝐶) ∈ 𝐵)
20	19	ralrimiva 3156	. . 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 3835	. . . . . . . . . . 11 ⊢ ((𝑖 ∈ ℕ0 ∧ ∀𝑘 ∈ ℕ0 (𝑆 < 𝑘 → 𝐶 = 0 )) → [𝑖 / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ))
24		sbcimg 3794	. . . . . . . . . . . . 13 ⊢ (𝑖 ∈ V → ([𝑖 / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ) ↔ ([𝑖 / 𝑘]𝑆 < 𝑘 → [𝑖 / 𝑘]𝐶 = 0 )))
25		sbcbr2g 5160	. . . . . . . . . . . . . . 15 ⊢ (𝑖 ∈ V → ([𝑖 / 𝑘]𝑆 < 𝑘 ↔ 𝑆 < ⦋𝑖 / 𝑘⦌𝑘))
26		csbvarg 4390	. . . . . . . . . . . . . . . 16 ⊢ (𝑖 ∈ V → ⦋𝑖 / 𝑘⦌𝑘 = 𝑖)
27	26	breq2d 5114	. . . . . . . . . . . . . . 15 ⊢ (𝑖 ∈ V → (𝑆 < ⦋𝑖 / 𝑘⦌𝑘 ↔ 𝑆 < 𝑖))
28	25, 27	bitrd 281	. . . . . . . . . . . . . 14 ⊢ (𝑖 ∈ V → ([𝑖 / 𝑘]𝑆 < 𝑘 ↔ 𝑆 < 𝑖))
29		sbceq1g 4373	. . . . . . . . . . . . . 14 ⊢ (𝑖 ∈ V → ([𝑖 / 𝑘]𝐶 = 0 ↔ ⦋𝑖 / 𝑘⦌𝐶 = 0 ))
30	28, 29	imbi12d 346	. . . . . . . . . . . . 13 ⊢ (𝑖 ∈ V → (([𝑖 / 𝑘]𝑆 < 𝑘 → [𝑖 / 𝑘]𝐶 = 0 ) ↔ (𝑆 < 𝑖 → ⦋𝑖 / 𝑘⦌𝐶 = 0 )))
31	24, 30	bitrd 281	. . . . . . . . . . . 12 ⊢ (𝑖 ∈ V → ([𝑖 / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ) ↔ (𝑆 < 𝑖 → ⦋𝑖 / 𝑘⦌𝐶 = 0 )))
32	31	elv 3461	. . . . . . . . . . 11 ⊢ ([𝑖 / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ) ↔ (𝑆 < 𝑖 → ⦋𝑖 / 𝑘⦌𝐶 = 0 ))
33	23, 32	sylib 220	. . . . . . . . . 10 ⊢ ((𝑖 ∈ ℕ0 ∧ ∀𝑘 ∈ ℕ0 (𝑆 < 𝑘 → 𝐶 = 0 )) → (𝑆 < 𝑖 → ⦋𝑖 / 𝑘⦌𝐶 = 0 ))
34	33	expcom 417	. . . . . . . . 9 ⊢ (∀𝑘 ∈ ℕ0 (𝑆 < 𝑘 → 𝐶 = 0 ) → (𝑖 ∈ ℕ0 → (𝑆 < 𝑖 → ⦋𝑖 / 𝑘⦌𝐶 = 0 )))
35	22, 34	syl 17	. . . . . . . 8 ⊢ (𝜑 → (𝑖 ∈ ℕ0 → (𝑆 < 𝑖 → ⦋𝑖 / 𝑘⦌𝐶 = 0 )))
36	35	imp31 421	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → ⦋𝑖 / 𝑘⦌𝐶 = 0 )
37	21	nn0red 12545	. . . . . . . . . . . . 13 ⊢ (𝜑 → 𝑆 ∈ ℝ)
38	37	adantr 484	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → 𝑆 ∈ ℝ)
39	38	adantr 484	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → 𝑆 ∈ ℝ)
40		nn0re 12492	. . . . . . . . . . . 12 ⊢ (𝑖 ∈ ℕ0 → 𝑖 ∈ ℝ)
41	40	ad2antlr 737	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → 𝑖 ∈ ℝ)
42	14	ad2antlr 737	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → (𝑖 + 1) ∈ ℕ0)
43	42	nn0red 12545	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → (𝑖 + 1) ∈ ℝ)
44		simpr 488	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → 𝑆 < 𝑖)
45	41	ltp1d 12124	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → 𝑖 < (𝑖 + 1))
46	39, 41, 43, 44, 45	lttrd 11346	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → 𝑆 < (𝑖 + 1))
47	46	ex 416	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → (𝑆 < 𝑖 → 𝑆 < (𝑖 + 1)))
48		rspsbca 3835	. . . . . . . . . . 11 ⊢ (((𝑖 + 1) ∈ ℕ0 ∧ ∀𝑘 ∈ ℕ0 (𝑆 < 𝑘 → 𝐶 = 0 )) → [(𝑖 + 1) / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ))
49		ovex 7431	. . . . . . . . . . . 12 ⊢ (𝑖 + 1) ∈ V
50		sbcimg 3794	. . . . . . . . . . . . 13 ⊢ ((𝑖 + 1) ∈ V → ([(𝑖 + 1) / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ) ↔ ([(𝑖 + 1) / 𝑘]𝑆 < 𝑘 → [(𝑖 + 1) / 𝑘]𝐶 = 0 )))
51		sbcbr2g 5160	. . . . . . . . . . . . . . 15 ⊢ ((𝑖 + 1) ∈ V → ([(𝑖 + 1) / 𝑘]𝑆 < 𝑘 ↔ 𝑆 < ⦋(𝑖 + 1) / 𝑘⦌𝑘))
52		csbvarg 4390	. . . . . . . . . . . . . . . 16 ⊢ ((𝑖 + 1) ∈ V → ⦋(𝑖 + 1) / 𝑘⦌𝑘 = (𝑖 + 1))
53	52	breq2d 5114	. . . . . . . . . . . . . . 15 ⊢ ((𝑖 + 1) ∈ V → (𝑆 < ⦋(𝑖 + 1) / 𝑘⦌𝑘 ↔ 𝑆 < (𝑖 + 1)))
54	51, 53	bitrd 281	. . . . . . . . . . . . . 14 ⊢ ((𝑖 + 1) ∈ V → ([(𝑖 + 1) / 𝑘]𝑆 < 𝑘 ↔ 𝑆 < (𝑖 + 1)))
55		sbceq1g 4373	. . . . . . . . . . . . . 14 ⊢ ((𝑖 + 1) ∈ V → ([(𝑖 + 1) / 𝑘]𝐶 = 0 ↔ ⦋(𝑖 + 1) / 𝑘⦌𝐶 = 0 ))
56	54, 55	imbi12d 346	. . . . . . . . . . . . 13 ⊢ ((𝑖 + 1) ∈ V → (([(𝑖 + 1) / 𝑘]𝑆 < 𝑘 → [(𝑖 + 1) / 𝑘]𝐶 = 0 ) ↔ (𝑆 < (𝑖 + 1) → ⦋(𝑖 + 1) / 𝑘⦌𝐶 = 0 )))
57	50, 56	bitrd 281	. . . . . . . . . . . 12 ⊢ ((𝑖 + 1) ∈ V → ([(𝑖 + 1) / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ) ↔ (𝑆 < (𝑖 + 1) → ⦋(𝑖 + 1) / 𝑘⦌𝐶 = 0 )))
58	49, 57	ax-mp 5	. . . . . . . . . . 11 ⊢ ([(𝑖 + 1) / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ) ↔ (𝑆 < (𝑖 + 1) → ⦋(𝑖 + 1) / 𝑘⦌𝐶 = 0 ))
59	48, 58	sylib 220	. . . . . . . . . 10 ⊢ (((𝑖 + 1) ∈ ℕ0 ∧ ∀𝑘 ∈ ℕ0 (𝑆 < 𝑘 → 𝐶 = 0 )) → (𝑆 < (𝑖 + 1) → ⦋(𝑖 + 1) / 𝑘⦌𝐶 = 0 ))
60	14, 22, 59	syl2anr 606	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → (𝑆 < (𝑖 + 1) → ⦋(𝑖 + 1) / 𝑘⦌𝐶 = 0 ))
61	47, 60	syld 47	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → (𝑆 < 𝑖 → ⦋(𝑖 + 1) / 𝑘⦌𝐶 = 0 ))
62	61	imp 410	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → ⦋(𝑖 + 1) / 𝑘⦌𝐶 = 0 )
63	36, 62	oveq12d 7416	. . . . . 6 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → (⦋𝑖 / 𝑘⦌𝐶 − ⦋(𝑖 + 1) / 𝑘⦌𝐶) = ( 0 − 0 ))
64	8	adantr 484	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → 𝐺 ∈ Grp)
65	1, 2	grpidcl 19009	. . . . . . 7 ⊢ (𝐺 ∈ Grp → 0 ∈ 𝐵)
66	1, 2, 17	grpsubid 19068	. . . . . . 7 ⊢ ((𝐺 ∈ Grp ∧ 0 ∈ 𝐵) → ( 0 − 0 ) = 0 )
67	64, 65, 66	syl2anc2 594	. . . . . 6 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → ( 0 − 0 ) = 0 )
68	63, 67	eqtrd 2799	. . . . 5 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → (⦋𝑖 / 𝑘⦌𝐶 − ⦋(𝑖 + 1) / 𝑘⦌𝐶) = 0 )
69	68	ex 416	. . . 4 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → (𝑆 < 𝑖 → (⦋𝑖 / 𝑘⦌𝐶 − ⦋(𝑖 + 1) / 𝑘⦌𝐶) = 0 ))
70	69	ralrimiva 3156	. . 3 ⊢ (𝜑 → ∀𝑖 ∈ ℕ0 (𝑆 < 𝑖 → (⦋𝑖 / 𝑘⦌𝐶 − ⦋(𝑖 + 1) / 𝑘⦌𝐶) = 0 ))
71	1, 2, 5, 20, 21, 70	gsummptnn0fz 20028	. 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))))
72		fzssuz 13572	. . . . . 6 ⊢ (0...(𝑆 + 1)) ⊆ (ℤ≥‘0)
73	72	a1i 11	. . . . 5 ⊢ (𝜑 → (0...(𝑆 + 1)) ⊆ (ℤ≥‘0))
74		nn0uz 12879	. . . . 5 ⊢ ℕ0 = (ℤ≥‘0)
75	73, 74	sseqtrrdi 3979	. . . 4 ⊢ (𝜑 → (0...(𝑆 + 1)) ⊆ ℕ0)
76		ssralv 4007	. . . 4 ⊢ ((0...(𝑆 + 1)) ⊆ ℕ0 → (∀𝑘 ∈ ℕ0 𝐶 ∈ 𝐵 → ∀𝑘 ∈ (0...(𝑆 + 1))𝐶 ∈ 𝐵))
77	75, 10, 76	sylc 65	. . 3 ⊢ (𝜑 → ∀𝑘 ∈ (0...(𝑆 + 1))𝐶 ∈ 𝐵)
78	1, 3, 17, 21, 77	telgsumfz0s 20033	. 2 ⊢ (𝜑 → (𝐺 Σg (𝑖 ∈ (0...𝑆) ↦ (⦋𝑖 / 𝑘⦌𝐶 − ⦋(𝑖 + 1) / 𝑘⦌𝐶))) = (⦋0 / 𝑘⦌𝐶 − ⦋(𝑆 + 1) / 𝑘⦌𝐶))
79		peano2nn0 12523	. . . . . 6 ⊢ (𝑆 ∈ ℕ0 → (𝑆 + 1) ∈ ℕ0)
80	21, 79	syl 17	. . . . 5 ⊢ (𝜑 → (𝑆 + 1) ∈ ℕ0)
81	37	ltp1d 12124	. . . . 5 ⊢ (𝜑 → 𝑆 < (𝑆 + 1))
82		rspsbca 3835	. . . . . . 7 ⊢ (((𝑆 + 1) ∈ ℕ0 ∧ ∀𝑘 ∈ ℕ0 (𝑆 < 𝑘 → 𝐶 = 0 )) → [(𝑆 + 1) / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ))
83		ovex 7431	. . . . . . . 8 ⊢ (𝑆 + 1) ∈ V
84		sbcimg 3794	. . . . . . . . 9 ⊢ ((𝑆 + 1) ∈ V → ([(𝑆 + 1) / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ) ↔ ([(𝑆 + 1) / 𝑘]𝑆 < 𝑘 → [(𝑆 + 1) / 𝑘]𝐶 = 0 )))
85		sbcbr2g 5160	. . . . . . . . . . 11 ⊢ ((𝑆 + 1) ∈ V → ([(𝑆 + 1) / 𝑘]𝑆 < 𝑘 ↔ 𝑆 < ⦋(𝑆 + 1) / 𝑘⦌𝑘))
86		csbvarg 4390	. . . . . . . . . . . 12 ⊢ ((𝑆 + 1) ∈ V → ⦋(𝑆 + 1) / 𝑘⦌𝑘 = (𝑆 + 1))
87	86	breq2d 5114	. . . . . . . . . . 11 ⊢ ((𝑆 + 1) ∈ V → (𝑆 < ⦋(𝑆 + 1) / 𝑘⦌𝑘 ↔ 𝑆 < (𝑆 + 1)))
88	85, 87	bitrd 281	. . . . . . . . . 10 ⊢ ((𝑆 + 1) ∈ V → ([(𝑆 + 1) / 𝑘]𝑆 < 𝑘 ↔ 𝑆 < (𝑆 + 1)))
89		sbceq1g 4373	. . . . . . . . . 10 ⊢ ((𝑆 + 1) ∈ V → ([(𝑆 + 1) / 𝑘]𝐶 = 0 ↔ ⦋(𝑆 + 1) / 𝑘⦌𝐶 = 0 ))
90	88, 89	imbi12d 346	. . . . . . . . 9 ⊢ ((𝑆 + 1) ∈ V → (([(𝑆 + 1) / 𝑘]𝑆 < 𝑘 → [(𝑆 + 1) / 𝑘]𝐶 = 0 ) ↔ (𝑆 < (𝑆 + 1) → ⦋(𝑆 + 1) / 𝑘⦌𝐶 = 0 )))
91	84, 90	bitrd 281	. . . . . . . 8 ⊢ ((𝑆 + 1) ∈ V → ([(𝑆 + 1) / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ) ↔ (𝑆 < (𝑆 + 1) → ⦋(𝑆 + 1) / 𝑘⦌𝐶 = 0 )))
92	83, 91	ax-mp 5	. . . . . . 7 ⊢ ([(𝑆 + 1) / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ) ↔ (𝑆 < (𝑆 + 1) → ⦋(𝑆 + 1) / 𝑘⦌𝐶 = 0 ))
93	82, 92	sylib 220	. . . . . 6 ⊢ (((𝑆 + 1) ∈ ℕ0 ∧ ∀𝑘 ∈ ℕ0 (𝑆 < 𝑘 → 𝐶 = 0 )) → (𝑆 < (𝑆 + 1) → ⦋(𝑆 + 1) / 𝑘⦌𝐶 = 0 ))
94	93	ex 416	. . . . 5 ⊢ ((𝑆 + 1) ∈ ℕ0 → (∀𝑘 ∈ ℕ0 (𝑆 < 𝑘 → 𝐶 = 0 ) → (𝑆 < (𝑆 + 1) → ⦋(𝑆 + 1) / 𝑘⦌𝐶 = 0 )))
95	80, 22, 81, 94	syl3c 66	. . . 4 ⊢ (𝜑 → ⦋(𝑆 + 1) / 𝑘⦌𝐶 = 0 )
96	95	oveq2d 7414	. . 3 ⊢ (𝜑 → (⦋0 / 𝑘⦌𝐶 − ⦋(𝑆 + 1) / 𝑘⦌𝐶) = (⦋0 / 𝑘⦌𝐶 − 0 ))
97		0nn0 12498	. . . . . 6 ⊢ 0 ∈ ℕ0
98	97	a1i 11	. . . . 5 ⊢ (𝜑 → 0 ∈ ℕ0)
99		rspcsbela 4394	. . . . 5 ⊢ ((0 ∈ ℕ0 ∧ ∀𝑘 ∈ ℕ0 𝐶 ∈ 𝐵) → ⦋0 / 𝑘⦌𝐶 ∈ 𝐵)
100	98, 10, 99	syl2anc 593	. . . 4 ⊢ (𝜑 → ⦋0 / 𝑘⦌𝐶 ∈ 𝐵)
101	1, 2, 17	grpsubid1 19069	. . . 4 ⊢ ((𝐺 ∈ Grp ∧ ⦋0 / 𝑘⦌𝐶 ∈ 𝐵) → (⦋0 / 𝑘⦌𝐶 − 0 ) = ⦋0 / 𝑘⦌𝐶)
102	7, 100, 101	syl2anc 593	. . 3 ⊢ (𝜑 → (⦋0 / 𝑘⦌𝐶 − 0 ) = ⦋0 / 𝑘⦌𝐶)
103	96, 102	eqtrd 2799	. 2 ⊢ (𝜑 → (⦋0 / 𝑘⦌𝐶 − ⦋(𝑆 + 1) / 𝑘⦌𝐶) = ⦋0 / 𝑘⦌𝐶)
104	71, 78, 103	3eqtrd 2803	1 ⊢ (𝜑 → (𝐺 Σg (𝑖 ∈ ℕ0 ↦ (⦋𝑖 / 𝑘⦌𝐶 − ⦋(𝑖 + 1) / 𝑘⦌𝐶))) = ⦋0 / 𝑘⦌𝐶)

Syntax hints:   → wi 4   ↔ wb 208   ∧ wa 399   = wceq 1562   ∈ wcel 2144  ∀wral 3078  Vcvv 3456  [wsbc 3746  ⦋csb 3854   ⊆ wss 3906   class class class wbr 5102   ↦ cmpt 5183  ‘cfv 6523  (class class class)co 7398  ℝcr 11074  0cc0 11075  1c1 11076   + caddc 11078   < clt 11218  ℕ₀cn0 12483  ℤ_≥cuz 12841  ...cfz 13514  Basecbs 17247  0_gc0g 17470   Σ_g cgsu 17471  Grpcgrp 18977  -_gcsg 18979  CMndccmn 19822  Abelcabl 19823

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1817  ax-4 1831  ax-5 1932  ax-6 1989  ax-7 2030  ax-8 2146  ax-9 2154  ax-10 2177  ax-11 2193  ax-12 2214  ax-ext 2736  ax-rep 5229  ax-sep 5248  ax-nul 5258  ax-pow 5324  ax-pr 5392  ax-un 7720  ax-cnex 11131  ax-resscn 11132  ax-1cn 11133  ax-icn 11134  ax-addcl 11135  ax-addrcl 11136  ax-mulcl 11137  ax-mulrcl 11138  ax-mulcom 11139  ax-addass 11140  ax-mulass 11141  ax-distr 11142  ax-i2m1 11143  ax-1ne0 11144  ax-1rid 11145  ax-rnegex 11146  ax-rrecex 11147  ax-cnre 11148  ax-pre-lttri 11149  ax-pre-lttrn 11150  ax-pre-ltadd 11151  ax-pre-mulgt0 11152

This theorem depends on definitions:  df-bi 209  df-an 400  df-or 859  df-3or 1100  df-3an 1101  df-tru 1565  df-fal 1575  df-ex 1802  df-nf 1806  df-sb 2093  df-mo 2568  df-eu 2598  df-clab 2743  df-cleq 2756  df-clel 2839  df-nfc 2913  df-ne 2960  df-nel 3064  df-ral 3079  df-rex 3089  df-rmo 3369  df-reu 3370  df-rab 3417  df-v 3458  df-sbc 3747  df-csb 3855  df-dif 3909  df-un 3911  df-in 3913  df-ss 3923  df-pss 3926  df-nul 4288  df-if 4483  df-pw 4559  df-sn 4585  df-pr 4587  df-op 4591  df-uni 4868  df-int 4908  df-iun 4953  df-iin 4954  df-br 5103  df-opab 5165  df-mpt 5184  df-tr 5210  df-id 5544  df-eprel 5549  df-po 5557  df-so 5558  df-fr 5602  df-se 5603  df-we 5604  df-xp 5655  df-rel 5656  df-cnv 5657  df-co 5658  df-dm 5659  df-rn 5660  df-res 5661  df-ima 5662  df-pred 6290  df-ord 6351  df-on 6352  df-lim 6353  df-suc 6354  df-iota 6479  df-fun 6525  df-fn 6526  df-f 6527  df-f1 6528  df-fo 6529  df-f1o 6530  df-fv 6531  df-isom 6532  df-riota 7355  df-ov 7401  df-oprab 7402  df-mpo 7403  df-of 7662  df-om 7849  df-1st 7972  df-2nd 7973  df-supp 8143  df-frecs 8264  df-wrecs 8295  df-recs 8344  df-rdg 8383  df-1o 8439  df-2o 8440  df-er 8680  df-map 8812  df-en 8930  df-dom 8931  df-sdom 8932  df-fin 8933  df-fsupp 9310  df-oi 9460  df-card 9899  df-pnf 11220  df-mnf 11221  df-xr 11222  df-ltxr 11223  df-le 11224  df-sub 11418  df-neg 11419  df-nn 12213  df-2 12282  df-n0 12484  df-z 12571  df-uz 12842  df-fz 13515  df-fzo 13662  df-seq 14017  df-hash 14346  df-sets 17202  df-slot 17220  df-ndx 17232  df-base 17248  df-ress 17269  df-plusg 17301  df-0g 17472  df-gsum 17473  df-mre 17616  df-mrc 17617  df-acs 17619  df-mgm 18676  df-sgrp 18755  df-mnd 18771  df-submnd 18820  df-grp 18980  df-minusg 18981  df-sbg 18982  df-mulg 19112  df-cntz 19359  df-cmn 19824  df-abl 19825

This theorem is referenced by:  telgsum  20036