Theorem telgsums 20062

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 19856	. . . 4 ⊢ (𝐺 ∈ Abel → 𝐺 ∈ CMnd)
5	3, 4	syl 18	. . 3 ⊢ (𝜑 → 𝐺 ∈ CMnd)
6		ablgrp 19854	. . . . . . 7 ⊢ (𝐺 ∈ Abel → 𝐺 ∈ Grp)
7	3, 6	syl 18	. . . . . 6 ⊢ (𝜑 → 𝐺 ∈ Grp)
8	7	adantr 485	. . . . 5 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → 𝐺 ∈ Grp)
9		simpr 489	. . . . . 6 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → 𝑖 ∈ ℕ0)
10		telgsums.f	. . . . . . 7 ⊢ (𝜑 → ∀𝑘 ∈ ℕ0 𝐶 ∈ 𝐵)
11	10	adantr 485	. . . . . 6 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → ∀𝑘 ∈ ℕ0 𝐶 ∈ 𝐵)
12		rspcsbela 4402	. . . . . 6 ⊢ ((𝑖 ∈ ℕ0 ∧ ∀𝑘 ∈ ℕ0 𝐶 ∈ 𝐵) → ⦋𝑖 / 𝑘⦌𝐶 ∈ 𝐵)
13	9, 11, 12	syl2anc 595	. . . . 5 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → ⦋𝑖 / 𝑘⦌𝐶 ∈ 𝐵)
14		peano2nn0 12543	. . . . . 6 ⊢ (𝑖 ∈ ℕ0 → (𝑖 + 1) ∈ ℕ0)
15		rspcsbela 4402	. . . . . 6 ⊢ (((𝑖 + 1) ∈ ℕ0 ∧ ∀𝑘 ∈ ℕ0 𝐶 ∈ 𝐵) → ⦋(𝑖 + 1) / 𝑘⦌𝐶 ∈ 𝐵)
16	14, 10, 15	syl2anr 608	. . . . 5 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → ⦋(𝑖 + 1) / 𝑘⦌𝐶 ∈ 𝐵)
17		telgsums.m	. . . . . 6 ⊢ − = (-g‘𝐺)
18	1, 17	grpsubcl 19085	. . . . 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 1396	. . . 4 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → (⦋𝑖 / 𝑘⦌𝐶 − ⦋(𝑖 + 1) / 𝑘⦌𝐶) ∈ 𝐵)
20	19	ralrimiva 3155	. . 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 3832	. . . . . . . . . . 11 ⊢ ((𝑖 ∈ ℕ0 ∧ ∀𝑘 ∈ ℕ0 (𝑆 < 𝑘 → 𝐶 = 0 )) → [𝑖 / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ))
24		sbcimg 3791	. . . . . . . . . . . . 13 ⊢ (𝑖 ∈ V → ([𝑖 / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ) ↔ ([𝑖 / 𝑘]𝑆 < 𝑘 → [𝑖 / 𝑘]𝐶 = 0 )))
25		sbcbr2g 5168	. . . . . . . . . . . . . . 15 ⊢ (𝑖 ∈ V → ([𝑖 / 𝑘]𝑆 < 𝑘 ↔ 𝑆 < ⦋𝑖 / 𝑘⦌𝑘))
26		csbvarg 4398	. . . . . . . . . . . . . . . 16 ⊢ (𝑖 ∈ V → ⦋𝑖 / 𝑘⦌𝑘 = 𝑖)
27	26	breq2d 5120	. . . . . . . . . . . . . . 15 ⊢ (𝑖 ∈ V → (𝑆 < ⦋𝑖 / 𝑘⦌𝑘 ↔ 𝑆 < 𝑖))
28	25, 27	bitrd 282	. . . . . . . . . . . . . 14 ⊢ (𝑖 ∈ V → ([𝑖 / 𝑘]𝑆 < 𝑘 ↔ 𝑆 < 𝑖))
29		sbceq1g 4381	. . . . . . . . . . . . . 14 ⊢ (𝑖 ∈ V → ([𝑖 / 𝑘]𝐶 = 0 ↔ ⦋𝑖 / 𝑘⦌𝐶 = 0 ))
30	28, 29	imbi12d 347	. . . . . . . . . . . . 13 ⊢ (𝑖 ∈ V → (([𝑖 / 𝑘]𝑆 < 𝑘 → [𝑖 / 𝑘]𝐶 = 0 ) ↔ (𝑆 < 𝑖 → ⦋𝑖 / 𝑘⦌𝐶 = 0 )))
31	24, 30	bitrd 282	. . . . . . . . . . . 12 ⊢ (𝑖 ∈ V → ([𝑖 / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ) ↔ (𝑆 < 𝑖 → ⦋𝑖 / 𝑘⦌𝐶 = 0 )))
32	31	elv 3458	. . . . . . . . . . 11 ⊢ ([𝑖 / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ) ↔ (𝑆 < 𝑖 → ⦋𝑖 / 𝑘⦌𝐶 = 0 ))
33	23, 32	sylib 221	. . . . . . . . . 10 ⊢ ((𝑖 ∈ ℕ0 ∧ ∀𝑘 ∈ ℕ0 (𝑆 < 𝑘 → 𝐶 = 0 )) → (𝑆 < 𝑖 → ⦋𝑖 / 𝑘⦌𝐶 = 0 ))
34	33	expcom 418	. . . . . . . . 9 ⊢ (∀𝑘 ∈ ℕ0 (𝑆 < 𝑘 → 𝐶 = 0 ) → (𝑖 ∈ ℕ0 → (𝑆 < 𝑖 → ⦋𝑖 / 𝑘⦌𝐶 = 0 )))
35	22, 34	syl 18	. . . . . . . 8 ⊢ (𝜑 → (𝑖 ∈ ℕ0 → (𝑆 < 𝑖 → ⦋𝑖 / 𝑘⦌𝐶 = 0 )))
36	35	imp31 422	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → ⦋𝑖 / 𝑘⦌𝐶 = 0 )
37	21	nn0red 12565	. . . . . . . . . . . . 13 ⊢ (𝜑 → 𝑆 ∈ ℝ)
38	37	adantr 485	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → 𝑆 ∈ ℝ)
39	38	adantr 485	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → 𝑆 ∈ ℝ)
40		nn0re 12512	. . . . . . . . . . . 12 ⊢ (𝑖 ∈ ℕ0 → 𝑖 ∈ ℝ)
41	40	ad2antlr 739	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → 𝑖 ∈ ℝ)
42	14	ad2antlr 739	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → (𝑖 + 1) ∈ ℕ0)
43	42	nn0red 12565	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → (𝑖 + 1) ∈ ℝ)
44		simpr 489	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → 𝑆 < 𝑖)
45	41	ltp1d 12144	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → 𝑖 < (𝑖 + 1))
46	39, 41, 43, 44, 45	lttrd 11370	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → 𝑆 < (𝑖 + 1))
47	46	ex 417	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → (𝑆 < 𝑖 → 𝑆 < (𝑖 + 1)))
48		rspsbca 3832	. . . . . . . . . . 11 ⊢ (((𝑖 + 1) ∈ ℕ0 ∧ ∀𝑘 ∈ ℕ0 (𝑆 < 𝑘 → 𝐶 = 0 )) → [(𝑖 + 1) / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ))
49		ovex 7443	. . . . . . . . . . . 12 ⊢ (𝑖 + 1) ∈ V
50		sbcimg 3791	. . . . . . . . . . . . 13 ⊢ ((𝑖 + 1) ∈ V → ([(𝑖 + 1) / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ) ↔ ([(𝑖 + 1) / 𝑘]𝑆 < 𝑘 → [(𝑖 + 1) / 𝑘]𝐶 = 0 )))
51		sbcbr2g 5168	. . . . . . . . . . . . . . 15 ⊢ ((𝑖 + 1) ∈ V → ([(𝑖 + 1) / 𝑘]𝑆 < 𝑘 ↔ 𝑆 < ⦋(𝑖 + 1) / 𝑘⦌𝑘))
52		csbvarg 4398	. . . . . . . . . . . . . . . 16 ⊢ ((𝑖 + 1) ∈ V → ⦋(𝑖 + 1) / 𝑘⦌𝑘 = (𝑖 + 1))
53	52	breq2d 5120	. . . . . . . . . . . . . . 15 ⊢ ((𝑖 + 1) ∈ V → (𝑆 < ⦋(𝑖 + 1) / 𝑘⦌𝑘 ↔ 𝑆 < (𝑖 + 1)))
54	51, 53	bitrd 282	. . . . . . . . . . . . . 14 ⊢ ((𝑖 + 1) ∈ V → ([(𝑖 + 1) / 𝑘]𝑆 < 𝑘 ↔ 𝑆 < (𝑖 + 1)))
55		sbceq1g 4381	. . . . . . . . . . . . . 14 ⊢ ((𝑖 + 1) ∈ V → ([(𝑖 + 1) / 𝑘]𝐶 = 0 ↔ ⦋(𝑖 + 1) / 𝑘⦌𝐶 = 0 ))
56	54, 55	imbi12d 347	. . . . . . . . . . . . 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 282	. . . . . . . . . . . 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 221	. . . . . . . . . 10 ⊢ (((𝑖 + 1) ∈ ℕ0 ∧ ∀𝑘 ∈ ℕ0 (𝑆 < 𝑘 → 𝐶 = 0 )) → (𝑆 < (𝑖 + 1) → ⦋(𝑖 + 1) / 𝑘⦌𝐶 = 0 ))
60	14, 22, 59	syl2anr 608	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → (𝑆 < (𝑖 + 1) → ⦋(𝑖 + 1) / 𝑘⦌𝐶 = 0 ))
61	47, 60	syld 48	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → (𝑆 < 𝑖 → ⦋(𝑖 + 1) / 𝑘⦌𝐶 = 0 ))
62	61	imp 411	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → ⦋(𝑖 + 1) / 𝑘⦌𝐶 = 0 )
63	36, 62	oveq12d 7428	. . . . . 6 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → (⦋𝑖 / 𝑘⦌𝐶 − ⦋(𝑖 + 1) / 𝑘⦌𝐶) = ( 0 − 0 ))
64	8	adantr 485	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → 𝐺 ∈ Grp)
65	1, 2	grpidcl 19031	. . . . . . 7 ⊢ (𝐺 ∈ Grp → 0 ∈ 𝐵)
66	1, 2, 17	grpsubid 19089	. . . . . . 7 ⊢ ((𝐺 ∈ Grp ∧ 0 ∈ 𝐵) → ( 0 − 0 ) = 0 )
67	64, 65, 66	syl2anc2 596	. . . . . 6 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → ( 0 − 0 ) = 0 )
68	63, 67	eqtrd 2796	. . . . 5 ⊢ (((𝜑 ∧ 𝑖 ∈ ℕ0) ∧ 𝑆 < 𝑖) → (⦋𝑖 / 𝑘⦌𝐶 − ⦋(𝑖 + 1) / 𝑘⦌𝐶) = 0 )
69	68	ex 417	. . . 4 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → (𝑆 < 𝑖 → (⦋𝑖 / 𝑘⦌𝐶 − ⦋(𝑖 + 1) / 𝑘⦌𝐶) = 0 ))
70	69	ralrimiva 3155	. . 3 ⊢ (𝜑 → ∀𝑖 ∈ ℕ0 (𝑆 < 𝑖 → (⦋𝑖 / 𝑘⦌𝐶 − ⦋(𝑖 + 1) / 𝑘⦌𝐶) = 0 ))
71	1, 2, 5, 20, 21, 70	gsummptnn0fz 20055	. 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 13592	. . . . . 6 ⊢ (0...(𝑆 + 1)) ⊆ (ℤ≥‘0)
73	72	a1i 11	. . . . 5 ⊢ (𝜑 → (0...(𝑆 + 1)) ⊆ (ℤ≥‘0))
74		nn0uz 12899	. . . . 5 ⊢ ℕ0 = (ℤ≥‘0)
75	73, 74	sseqtrrdi 3977	. . . 4 ⊢ (𝜑 → (0...(𝑆 + 1)) ⊆ ℕ0)
76		ssralv 4005	. . . 4 ⊢ ((0...(𝑆 + 1)) ⊆ ℕ0 → (∀𝑘 ∈ ℕ0 𝐶 ∈ 𝐵 → ∀𝑘 ∈ (0...(𝑆 + 1))𝐶 ∈ 𝐵))
77	75, 10, 76	sylc 66	. . 3 ⊢ (𝜑 → ∀𝑘 ∈ (0...(𝑆 + 1))𝐶 ∈ 𝐵)
78	1, 3, 17, 21, 77	telgsumfz0s 20060	. 2 ⊢ (𝜑 → (𝐺 Σg (𝑖 ∈ (0...𝑆) ↦ (⦋𝑖 / 𝑘⦌𝐶 − ⦋(𝑖 + 1) / 𝑘⦌𝐶))) = (⦋0 / 𝑘⦌𝐶 − ⦋(𝑆 + 1) / 𝑘⦌𝐶))
79		peano2nn0 12543	. . . . . 6 ⊢ (𝑆 ∈ ℕ0 → (𝑆 + 1) ∈ ℕ0)
80	21, 79	syl 18	. . . . 5 ⊢ (𝜑 → (𝑆 + 1) ∈ ℕ0)
81	37	ltp1d 12144	. . . . 5 ⊢ (𝜑 → 𝑆 < (𝑆 + 1))
82		rspsbca 3832	. . . . . . 7 ⊢ (((𝑆 + 1) ∈ ℕ0 ∧ ∀𝑘 ∈ ℕ0 (𝑆 < 𝑘 → 𝐶 = 0 )) → [(𝑆 + 1) / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ))
83		ovex 7443	. . . . . . . 8 ⊢ (𝑆 + 1) ∈ V
84		sbcimg 3791	. . . . . . . . 9 ⊢ ((𝑆 + 1) ∈ V → ([(𝑆 + 1) / 𝑘](𝑆 < 𝑘 → 𝐶 = 0 ) ↔ ([(𝑆 + 1) / 𝑘]𝑆 < 𝑘 → [(𝑆 + 1) / 𝑘]𝐶 = 0 )))
85		sbcbr2g 5168	. . . . . . . . . . 11 ⊢ ((𝑆 + 1) ∈ V → ([(𝑆 + 1) / 𝑘]𝑆 < 𝑘 ↔ 𝑆 < ⦋(𝑆 + 1) / 𝑘⦌𝑘))
86		csbvarg 4398	. . . . . . . . . . . 12 ⊢ ((𝑆 + 1) ∈ V → ⦋(𝑆 + 1) / 𝑘⦌𝑘 = (𝑆 + 1))
87	86	breq2d 5120	. . . . . . . . . . 11 ⊢ ((𝑆 + 1) ∈ V → (𝑆 < ⦋(𝑆 + 1) / 𝑘⦌𝑘 ↔ 𝑆 < (𝑆 + 1)))
88	85, 87	bitrd 282	. . . . . . . . . 10 ⊢ ((𝑆 + 1) ∈ V → ([(𝑆 + 1) / 𝑘]𝑆 < 𝑘 ↔ 𝑆 < (𝑆 + 1)))
89		sbceq1g 4381	. . . . . . . . . 10 ⊢ ((𝑆 + 1) ∈ V → ([(𝑆 + 1) / 𝑘]𝐶 = 0 ↔ ⦋(𝑆 + 1) / 𝑘⦌𝐶 = 0 ))
90	88, 89	imbi12d 347	. . . . . . . . 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 282	. . . . . . . 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 221	. . . . . 6 ⊢ (((𝑆 + 1) ∈ ℕ0 ∧ ∀𝑘 ∈ ℕ0 (𝑆 < 𝑘 → 𝐶 = 0 )) → (𝑆 < (𝑆 + 1) → ⦋(𝑆 + 1) / 𝑘⦌𝐶 = 0 ))
94	93	ex 417	. . . . 5 ⊢ ((𝑆 + 1) ∈ ℕ0 → (∀𝑘 ∈ ℕ0 (𝑆 < 𝑘 → 𝐶 = 0 ) → (𝑆 < (𝑆 + 1) → ⦋(𝑆 + 1) / 𝑘⦌𝐶 = 0 )))
95	80, 22, 81, 94	syl3c 67	. . . 4 ⊢ (𝜑 → ⦋(𝑆 + 1) / 𝑘⦌𝐶 = 0 )
96	95	oveq2d 7426	. . 3 ⊢ (𝜑 → (⦋0 / 𝑘⦌𝐶 − ⦋(𝑆 + 1) / 𝑘⦌𝐶) = (⦋0 / 𝑘⦌𝐶 − 0 ))
97		0nn0 12518	. . . . . 6 ⊢ 0 ∈ ℕ0
98	97	a1i 11	. . . . 5 ⊢ (𝜑 → 0 ∈ ℕ0)
99		rspcsbela 4402	. . . . 5 ⊢ ((0 ∈ ℕ0 ∧ ∀𝑘 ∈ ℕ0 𝐶 ∈ 𝐵) → ⦋0 / 𝑘⦌𝐶 ∈ 𝐵)
100	98, 10, 99	syl2anc 595	. . . 4 ⊢ (𝜑 → ⦋0 / 𝑘⦌𝐶 ∈ 𝐵)
101	1, 2, 17	grpsubid1 19090	. . . 4 ⊢ ((𝐺 ∈ Grp ∧ ⦋0 / 𝑘⦌𝐶 ∈ 𝐵) → (⦋0 / 𝑘⦌𝐶 − 0 ) = ⦋0 / 𝑘⦌𝐶)
102	7, 100, 101	syl2anc 595	. . 3 ⊢ (𝜑 → (⦋0 / 𝑘⦌𝐶 − 0 ) = ⦋0 / 𝑘⦌𝐶)
103	96, 102	eqtrd 2796	. 2 ⊢ (𝜑 → (⦋0 / 𝑘⦌𝐶 − ⦋(𝑆 + 1) / 𝑘⦌𝐶) = ⦋0 / 𝑘⦌𝐶)
104	71, 78, 103	3eqtrd 2800	1 ⊢ (𝜑 → (𝐺 Σg (𝑖 ∈ ℕ0 ↦ (⦋𝑖 / 𝑘⦌𝐶 − ⦋(𝑖 + 1) / 𝑘⦌𝐶))) = ⦋0 / 𝑘⦌𝐶)

Syntax hints:   → wi 4   ↔ wb 209   ∧ wa 400   = wceq 1568   ∈ wcel 2141  ∀wral 3077  Vcvv 3453  [wsbc 3743  ⦋csb 3852   ⊆ wss 3904   class class class wbr 5108   ↦ cmpt 5191  ‘cfv 6536  (class class class)co 7410  ℝcr 11098  0cc0 11099  1c1 11100   + caddc 11102   < clt 11242  ℕ₀cn0 12503  ℤ_≥cuz 12861  ...cfz 13534  Basecbs 17268  0_gc0g 17491   Σ_g cgsu 17492  Grpcgrp 18999  -_gcsg 19001  CMndccmn 19849  Abelcabl 19850

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1823  ax-4 1837  ax-5 1938  ax-6 1995  ax-7 2036  ax-8 2143  ax-9 2151  ax-10 2174  ax-11 2190  ax-12 2211  ax-ext 2733  ax-rep 5237  ax-sep 5256  ax-nul 5268  ax-pow 5336  ax-pr 5404  ax-un 7732  ax-cnex 11155  ax-resscn 11156  ax-1cn 11157  ax-icn 11158  ax-addcl 11159  ax-addrcl 11160  ax-mulcl 11161  ax-mulrcl 11162  ax-mulcom 11163  ax-addass 11164  ax-mulass 11165  ax-distr 11166  ax-i2m1 11167  ax-1ne0 11168  ax-1rid 11169  ax-rnegex 11170  ax-rrecex 11171  ax-cnre 11172  ax-pre-lttri 11173  ax-pre-lttrn 11174  ax-pre-ltadd 11175  ax-pre-mulgt0 11176

This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3or 1102  df-3an 1103  df-tru 1571  df-fal 1581  df-ex 1808  df-nf 1812  df-sb 2095  df-mo 2565  df-eu 2595  df-clab 2740  df-cleq 2753  df-clel 2836  df-nfc 2910  df-ne 2957  df-nel 3063  df-ral 3078  df-rex 3088  df-rmo 3367  df-reu 3368  df-rab 3415  df-v 3455  df-sbc 3744  df-csb 3853  df-dif 3907  df-un 3909  df-in 3911  df-ss 3921  df-pss 3924  df-nul 4286  df-if 4487  df-pw 4563  df-sn 4589  df-pr 4591  df-op 4595  df-uni 4872  df-int 4912  df-iun 4957  df-iin 4958  df-br 5109  df-opab 5173  df-mpt 5192  df-tr 5218  df-id 5556  df-eprel 5561  df-po 5569  df-so 5570  df-fr 5614  df-se 5615  df-we 5616  df-xp 5667  df-rel 5668  df-cnv 5669  df-co 5670  df-dm 5671  df-rn 5672  df-res 5673  df-ima 5674  df-pred 6302  df-ord 6363  df-on 6364  df-lim 6365  df-suc 6366  df-iota 6492  df-fun 6538  df-fn 6539  df-f 6540  df-f1 6541  df-fo 6542  df-f1o 6543  df-fv 6544  df-isom 6545  df-riota 7367  df-ov 7413  df-oprab 7414  df-mpo 7415  df-of 7674  df-om 7862  df-1st 7985  df-2nd 7986  df-supp 8156  df-frecs 8277  df-wrecs 8308  df-recs 8357  df-rdg 8396  df-1o 8452  df-2o 8453  df-er 8693  df-map 8825  df-en 8943  df-dom 8944  df-sdom 8945  df-fin 8946  df-fsupp 9321  df-oi 9471  df-card 9924  df-pnf 11244  df-mnf 11245  df-xr 11246  df-ltxr 11247  df-le 11248  df-sub 11442  df-neg 11443  df-nn 12233  df-2 12302  df-n0 12504  df-z 12591  df-uz 12862  df-fz 13535  df-fzo 13682  df-seq 14037  df-hash 14366  df-sets 17223  df-slot 17241  df-ndx 17253  df-base 17269  df-ress 17290  df-plusg 17322  df-0g 17493  df-gsum 17494  df-mre 17637  df-mrc 17638  df-acs 17640  df-mgm 18697  df-sgrp 18776  df-mnd 18792  df-submnd 18841  df-grp 19002  df-minusg 19003  df-sbg 19004  df-mulg 19133  df-cntz 19386  df-cmn 19851  df-abl 19852

This theorem is referenced by:  telgsum  20063