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Theorem isumshft 15817

Description: Index shift of an infinite sum. (Contributed by Paul Chapman, 31-Oct-2007.) (Revised by Mario Carneiro, 24-Apr-2014.)

**Hypotheses**
Ref	Expression
isumshft.1	⊢ 𝑍 = (ℤ_≥‘𝑀)
isumshft.2	⊢ 𝑊 = (ℤ_≥‘(𝑀 + 𝐾))
isumshft.3	⊢ (𝑗 = (𝐾 + 𝑘) → 𝐴 = 𝐵)
isumshft.4	⊢ (𝜑 → 𝐾 ∈ ℤ)
isumshft.5	⊢ (𝜑 → 𝑀 ∈ ℤ)
isumshft.6	⊢ ((𝜑 ∧ 𝑗 ∈ 𝑊) → 𝐴 ∈ ℂ)

**Assertion**
Ref	Expression
isumshft	⊢ (𝜑 → Σ𝑗 ∈ 𝑊 𝐴 = Σ𝑘 ∈ 𝑍 𝐵)

Distinct variable groups: 𝐴,𝑘 𝑗,𝑘,𝐾 𝜑,𝑗,𝑘 𝑗,𝑊,𝑘 𝐵,𝑗 𝑘,𝑍 Allowed substitution hints: 𝐴(𝑗) 𝐵(𝑘) 𝑀(𝑗,𝑘) 𝑍(𝑗)

Proof of Theorem isumshft Dummy variables 𝑚 𝑛 𝑥 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		isumshft.5	. . . . . . . . 9 ⊢ (𝜑 → 𝑀 ∈ ℤ)
2		isumshft.4	. . . . . . . . 9 ⊢ (𝜑 → 𝐾 ∈ ℤ)
3	1, 2	zaddcld 12700	. . . . . . . 8 ⊢ (𝜑 → (𝑀 + 𝐾) ∈ ℤ)
4		isumshft.2	. . . . . . . . . 10 ⊢ 𝑊 = (ℤ_≥‘(𝑀 + 𝐾))
5	4	eleq2i 2817	. . . . . . . . 9 ⊢ (𝑚 ∈ 𝑊 ↔ 𝑚 ∈ (ℤ_≥‘(𝑀 + 𝐾)))
6	2	zcnd 12697	. . . . . . . . . . 11 ⊢ (𝜑 → 𝐾 ∈ ℂ)
7		eluzelcn 12864	. . . . . . . . . . . 12 ⊢ (𝑚 ∈ (ℤ_≥‘(𝑀 + 𝐾)) → 𝑚 ∈ ℂ)
8	7, 4	eleq2s 2843	. . . . . . . . . . 11 ⊢ (𝑚 ∈ 𝑊 → 𝑚 ∈ ℂ)
9		isumshft.1	. . . . . . . . . . . . . 14 ⊢ 𝑍 = (ℤ_≥‘𝑀)
10	9	fvexi 6906	. . . . . . . . . . . . 13 ⊢ 𝑍 ∈ V
11	10	mptex 7231	. . . . . . . . . . . 12 ⊢ (𝑘 ∈ 𝑍 ↦ 𝐵) ∈ V
12	11	shftval 15053	. . . . . . . . . . 11 ⊢ ((𝐾 ∈ ℂ ∧ 𝑚 ∈ ℂ) → (((𝑘 ∈ 𝑍 ↦ 𝐵) shift 𝐾)‘𝑚) = ((𝑘 ∈ 𝑍 ↦ 𝐵)‘(𝑚 − 𝐾)))
13	6, 8, 12	syl2an 594	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑚 ∈ 𝑊) → (((𝑘 ∈ 𝑍 ↦ 𝐵) shift 𝐾)‘𝑚) = ((𝑘 ∈ 𝑍 ↦ 𝐵)‘(𝑚 − 𝐾)))
14		simpr 483	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → 𝑘 ∈ 𝑍)
15		eqid 2725	. . . . . . . . . . . . . . . . 17 ⊢ (𝑘 ∈ 𝑍 ↦ 𝐵) = (𝑘 ∈ 𝑍 ↦ 𝐵)
16	15	fvmpt2i 7010	. . . . . . . . . . . . . . . 16 ⊢ (𝑘 ∈ 𝑍 → ((𝑘 ∈ 𝑍 ↦ 𝐵)‘𝑘) = ( I ‘𝐵))
17	14, 16	syl 17	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → ((𝑘 ∈ 𝑍 ↦ 𝐵)‘𝑘) = ( I ‘𝐵))
18		eluzelcn 12864	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑘 ∈ (ℤ_≥‘𝑀) → 𝑘 ∈ ℂ)
19	18, 9	eleq2s 2843	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑘 ∈ 𝑍 → 𝑘 ∈ ℂ)
20		addcom 11430	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝐾 ∈ ℂ ∧ 𝑘 ∈ ℂ) → (𝐾 + 𝑘) = (𝑘 + 𝐾))
21	6, 19, 20	syl2an 594	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (𝐾 + 𝑘) = (𝑘 + 𝐾))
22		id 22	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑘 ∈ 𝑍 → 𝑘 ∈ 𝑍)
23	22, 9	eleqtrdi 2835	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑘 ∈ 𝑍 → 𝑘 ∈ (ℤ_≥‘𝑀))
24		eluzadd 12881	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝑘 ∈ (ℤ_≥‘𝑀) ∧ 𝐾 ∈ ℤ) → (𝑘 + 𝐾) ∈ (ℤ_≥‘(𝑀 + 𝐾)))
25	23, 2, 24	syl2anr 595	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (𝑘 + 𝐾) ∈ (ℤ_≥‘(𝑀 + 𝐾)))
26	21, 25	eqeltrd 2825	. . . . . . . . . . . . . . . . 17 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (𝐾 + 𝑘) ∈ (ℤ_≥‘(𝑀 + 𝐾)))
27	26, 4	eleqtrrdi 2836	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (𝐾 + 𝑘) ∈ 𝑊)
28		isumshft.3	. . . . . . . . . . . . . . . . 17 ⊢ (𝑗 = (𝐾 + 𝑘) → 𝐴 = 𝐵)
29		eqid 2725	. . . . . . . . . . . . . . . . 17 ⊢ (𝑗 ∈ 𝑊 ↦ 𝐴) = (𝑗 ∈ 𝑊 ↦ 𝐴)
30	28, 29	fvmpti 6999	. . . . . . . . . . . . . . . 16 ⊢ ((𝐾 + 𝑘) ∈ 𝑊 → ((𝑗 ∈ 𝑊 ↦ 𝐴)‘(𝐾 + 𝑘)) = ( I ‘𝐵))
31	27, 30	syl 17	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → ((𝑗 ∈ 𝑊 ↦ 𝐴)‘(𝐾 + 𝑘)) = ( I ‘𝐵))
32	17, 31	eqtr4d 2768	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → ((𝑘 ∈ 𝑍 ↦ 𝐵)‘𝑘) = ((𝑗 ∈ 𝑊 ↦ 𝐴)‘(𝐾 + 𝑘)))
33	32	ralrimiva 3136	. . . . . . . . . . . . 13 ⊢ (𝜑 → ∀𝑘 ∈ 𝑍 ((𝑘 ∈ 𝑍 ↦ 𝐵)‘𝑘) = ((𝑗 ∈ 𝑊 ↦ 𝐴)‘(𝐾 + 𝑘)))
34		nffvmpt1 6903	. . . . . . . . . . . . . . 15 ⊢ Ⅎ𝑘((𝑘 ∈ 𝑍 ↦ 𝐵)‘𝑛)
35	34	nfeq1 2908	. . . . . . . . . . . . . 14 ⊢ Ⅎ𝑘((𝑘 ∈ 𝑍 ↦ 𝐵)‘𝑛) = ((𝑗 ∈ 𝑊 ↦ 𝐴)‘(𝐾 + 𝑛))
36		fveq2 6892	. . . . . . . . . . . . . . 15 ⊢ (𝑘 = 𝑛 → ((𝑘 ∈ 𝑍 ↦ 𝐵)‘𝑘) = ((𝑘 ∈ 𝑍 ↦ 𝐵)‘𝑛))
37		oveq2 7424	. . . . . . . . . . . . . . . 16 ⊢ (𝑘 = 𝑛 → (𝐾 + 𝑘) = (𝐾 + 𝑛))
38	37	fveq2d 6896	. . . . . . . . . . . . . . 15 ⊢ (𝑘 = 𝑛 → ((𝑗 ∈ 𝑊 ↦ 𝐴)‘(𝐾 + 𝑘)) = ((𝑗 ∈ 𝑊 ↦ 𝐴)‘(𝐾 + 𝑛)))
39	36, 38	eqeq12d 2741	. . . . . . . . . . . . . 14 ⊢ (𝑘 = 𝑛 → (((𝑘 ∈ 𝑍 ↦ 𝐵)‘𝑘) = ((𝑗 ∈ 𝑊 ↦ 𝐴)‘(𝐾 + 𝑘)) ↔ ((𝑘 ∈ 𝑍 ↦ 𝐵)‘𝑛) = ((𝑗 ∈ 𝑊 ↦ 𝐴)‘(𝐾 + 𝑛))))
40	35, 39	rspc 3589	. . . . . . . . . . . . 13 ⊢ (𝑛 ∈ 𝑍 → (∀𝑘 ∈ 𝑍 ((𝑘 ∈ 𝑍 ↦ 𝐵)‘𝑘) = ((𝑗 ∈ 𝑊 ↦ 𝐴)‘(𝐾 + 𝑘)) → ((𝑘 ∈ 𝑍 ↦ 𝐵)‘𝑛) = ((𝑗 ∈ 𝑊 ↦ 𝐴)‘(𝐾 + 𝑛))))
41	33, 40	mpan9 505	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑛 ∈ 𝑍) → ((𝑘 ∈ 𝑍 ↦ 𝐵)‘𝑛) = ((𝑗 ∈ 𝑊 ↦ 𝐴)‘(𝐾 + 𝑛)))
42	41	ralrimiva 3136	. . . . . . . . . . 11 ⊢ (𝜑 → ∀𝑛 ∈ 𝑍 ((𝑘 ∈ 𝑍 ↦ 𝐵)‘𝑛) = ((𝑗 ∈ 𝑊 ↦ 𝐴)‘(𝐾 + 𝑛)))
43	1	adantr 479	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑚 ∈ 𝑊) → 𝑀 ∈ ℤ)
44	2	adantr 479	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑚 ∈ 𝑊) → 𝐾 ∈ ℤ)
45		simpr 483	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑚 ∈ 𝑊) → 𝑚 ∈ 𝑊)
46	45, 4	eleqtrdi 2835	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑚 ∈ 𝑊) → 𝑚 ∈ (ℤ_≥‘(𝑀 + 𝐾)))
47		eluzsub 12882	. . . . . . . . . . . . 13 ⊢ ((𝑀 ∈ ℤ ∧ 𝐾 ∈ ℤ ∧ 𝑚 ∈ (ℤ_≥‘(𝑀 + 𝐾))) → (𝑚 − 𝐾) ∈ (ℤ_≥‘𝑀))
48	43, 44, 46, 47	syl3anc 1368	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑚 ∈ 𝑊) → (𝑚 − 𝐾) ∈ (ℤ_≥‘𝑀))
49	48, 9	eleqtrrdi 2836	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑚 ∈ 𝑊) → (𝑚 − 𝐾) ∈ 𝑍)
50		fveq2 6892	. . . . . . . . . . . . 13 ⊢ (𝑛 = (𝑚 − 𝐾) → ((𝑘 ∈ 𝑍 ↦ 𝐵)‘𝑛) = ((𝑘 ∈ 𝑍 ↦ 𝐵)‘(𝑚 − 𝐾)))
51		oveq2 7424	. . . . . . . . . . . . . 14 ⊢ (𝑛 = (𝑚 − 𝐾) → (𝐾 + 𝑛) = (𝐾 + (𝑚 − 𝐾)))
52	51	fveq2d 6896	. . . . . . . . . . . . 13 ⊢ (𝑛 = (𝑚 − 𝐾) → ((𝑗 ∈ 𝑊 ↦ 𝐴)‘(𝐾 + 𝑛)) = ((𝑗 ∈ 𝑊 ↦ 𝐴)‘(𝐾 + (𝑚 − 𝐾))))
53	50, 52	eqeq12d 2741	. . . . . . . . . . . 12 ⊢ (𝑛 = (𝑚 − 𝐾) → (((𝑘 ∈ 𝑍 ↦ 𝐵)‘𝑛) = ((𝑗 ∈ 𝑊 ↦ 𝐴)‘(𝐾 + 𝑛)) ↔ ((𝑘 ∈ 𝑍 ↦ 𝐵)‘(𝑚 − 𝐾)) = ((𝑗 ∈ 𝑊 ↦ 𝐴)‘(𝐾 + (𝑚 − 𝐾)))))
54	53	rspccva 3600	. . . . . . . . . . 11 ⊢ ((∀𝑛 ∈ 𝑍 ((𝑘 ∈ 𝑍 ↦ 𝐵)‘𝑛) = ((𝑗 ∈ 𝑊 ↦ 𝐴)‘(𝐾 + 𝑛)) ∧ (𝑚 − 𝐾) ∈ 𝑍) → ((𝑘 ∈ 𝑍 ↦ 𝐵)‘(𝑚 − 𝐾)) = ((𝑗 ∈ 𝑊 ↦ 𝐴)‘(𝐾 + (𝑚 − 𝐾))))
55	42, 49, 54	syl2an2r 683	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑚 ∈ 𝑊) → ((𝑘 ∈ 𝑍 ↦ 𝐵)‘(𝑚 − 𝐾)) = ((𝑗 ∈ 𝑊 ↦ 𝐴)‘(𝐾 + (𝑚 − 𝐾))))
56		pncan3 11498	. . . . . . . . . . . 12 ⊢ ((𝐾 ∈ ℂ ∧ 𝑚 ∈ ℂ) → (𝐾 + (𝑚 − 𝐾)) = 𝑚)
57	6, 8, 56	syl2an 594	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑚 ∈ 𝑊) → (𝐾 + (𝑚 − 𝐾)) = 𝑚)
58	57	fveq2d 6896	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑚 ∈ 𝑊) → ((𝑗 ∈ 𝑊 ↦ 𝐴)‘(𝐾 + (𝑚 − 𝐾))) = ((𝑗 ∈ 𝑊 ↦ 𝐴)‘𝑚))
59	13, 55, 58	3eqtrrd 2770	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑚 ∈ 𝑊) → ((𝑗 ∈ 𝑊 ↦ 𝐴)‘𝑚) = (((𝑘 ∈ 𝑍 ↦ 𝐵) shift 𝐾)‘𝑚))
60	5, 59	sylan2br 593	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑚 ∈ (ℤ_≥‘(𝑀 + 𝐾))) → ((𝑗 ∈ 𝑊 ↦ 𝐴)‘𝑚) = (((𝑘 ∈ 𝑍 ↦ 𝐵) shift 𝐾)‘𝑚))
61	3, 60	seqfeq 14024	. . . . . . 7 ⊢ (𝜑 → seq(𝑀 + 𝐾)( + , (𝑗 ∈ 𝑊 ↦ 𝐴)) = seq(𝑀 + 𝐾)( + , ((𝑘 ∈ 𝑍 ↦ 𝐵) shift 𝐾)))
62	61	breq1d 5153	. . . . . 6 ⊢ (𝜑 → (seq(𝑀 + 𝐾)( + , (𝑗 ∈ 𝑊 ↦ 𝐴)) ⇝ 𝑥 ↔ seq(𝑀 + 𝐾)( + , ((𝑘 ∈ 𝑍 ↦ 𝐵) shift 𝐾)) ⇝ 𝑥))
63	11	isershft 15642	. . . . . . 7 ⊢ ((𝑀 ∈ ℤ ∧ 𝐾 ∈ ℤ) → (seq𝑀( + , (𝑘 ∈ 𝑍 ↦ 𝐵)) ⇝ 𝑥 ↔ seq(𝑀 + 𝐾)( + , ((𝑘 ∈ 𝑍 ↦ 𝐵) shift 𝐾)) ⇝ 𝑥))
64	1, 2, 63	syl2anc 582	. . . . . 6 ⊢ (𝜑 → (seq𝑀( + , (𝑘 ∈ 𝑍 ↦ 𝐵)) ⇝ 𝑥 ↔ seq(𝑀 + 𝐾)( + , ((𝑘 ∈ 𝑍 ↦ 𝐵) shift 𝐾)) ⇝ 𝑥))
65	62, 64	bitr4d 281	. . . . 5 ⊢ (𝜑 → (seq(𝑀 + 𝐾)( + , (𝑗 ∈ 𝑊 ↦ 𝐴)) ⇝ 𝑥 ↔ seq𝑀( + , (𝑘 ∈ 𝑍 ↦ 𝐵)) ⇝ 𝑥))
66	65	iotabidv 6527	. . . 4 ⊢ (𝜑 → (℩𝑥seq(𝑀 + 𝐾)( + , (𝑗 ∈ 𝑊 ↦ 𝐴)) ⇝ 𝑥) = (℩𝑥seq𝑀( + , (𝑘 ∈ 𝑍 ↦ 𝐵)) ⇝ 𝑥))
67		df-fv 6551	. . . 4 ⊢ ( ⇝ ‘seq(𝑀 + 𝐾)( + , (𝑗 ∈ 𝑊 ↦ 𝐴))) = (℩𝑥seq(𝑀 + 𝐾)( + , (𝑗 ∈ 𝑊 ↦ 𝐴)) ⇝ 𝑥)
68		df-fv 6551	. . . 4 ⊢ ( ⇝ ‘seq𝑀( + , (𝑘 ∈ 𝑍 ↦ 𝐵))) = (℩𝑥seq𝑀( + , (𝑘 ∈ 𝑍 ↦ 𝐵)) ⇝ 𝑥)
69	66, 67, 68	3eqtr4g 2790	. . 3 ⊢ (𝜑 → ( ⇝ ‘seq(𝑀 + 𝐾)( + , (𝑗 ∈ 𝑊 ↦ 𝐴))) = ( ⇝ ‘seq𝑀( + , (𝑘 ∈ 𝑍 ↦ 𝐵))))
70		eqidd 2726	. . . 4 ⊢ ((𝜑 ∧ 𝑚 ∈ 𝑊) → ((𝑗 ∈ 𝑊 ↦ 𝐴)‘𝑚) = ((𝑗 ∈ 𝑊 ↦ 𝐴)‘𝑚))
71		isumshft.6	. . . . . 6 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑊) → 𝐴 ∈ ℂ)
72	71	fmpttd 7120	. . . . 5 ⊢ (𝜑 → (𝑗 ∈ 𝑊 ↦ 𝐴):𝑊⟶ℂ)
73	72	ffvelcdmda 7089	. . . 4 ⊢ ((𝜑 ∧ 𝑚 ∈ 𝑊) → ((𝑗 ∈ 𝑊 ↦ 𝐴)‘𝑚) ∈ ℂ)
74	4, 3, 70, 73	isum 15697	. . 3 ⊢ (𝜑 → Σ𝑚 ∈ 𝑊 ((𝑗 ∈ 𝑊 ↦ 𝐴)‘𝑚) = ( ⇝ ‘seq(𝑀 + 𝐾)( + , (𝑗 ∈ 𝑊 ↦ 𝐴))))
75		eqidd 2726	. . . 4 ⊢ ((𝜑 ∧ 𝑛 ∈ 𝑍) → ((𝑘 ∈ 𝑍 ↦ 𝐵)‘𝑛) = ((𝑘 ∈ 𝑍 ↦ 𝐵)‘𝑛))
76	27	ralrimiva 3136	. . . . . . 7 ⊢ (𝜑 → ∀𝑘 ∈ 𝑍 (𝐾 + 𝑘) ∈ 𝑊)
77	37	eleq1d 2810	. . . . . . . 8 ⊢ (𝑘 = 𝑛 → ((𝐾 + 𝑘) ∈ 𝑊 ↔ (𝐾 + 𝑛) ∈ 𝑊))
78	77	rspccva 3600	. . . . . . 7 ⊢ ((∀𝑘 ∈ 𝑍 (𝐾 + 𝑘) ∈ 𝑊 ∧ 𝑛 ∈ 𝑍) → (𝐾 + 𝑛) ∈ 𝑊)
79	76, 78	sylan 578	. . . . . 6 ⊢ ((𝜑 ∧ 𝑛 ∈ 𝑍) → (𝐾 + 𝑛) ∈ 𝑊)
80		ffvelcdm 7086	. . . . . 6 ⊢ (((𝑗 ∈ 𝑊 ↦ 𝐴):𝑊⟶ℂ ∧ (𝐾 + 𝑛) ∈ 𝑊) → ((𝑗 ∈ 𝑊 ↦ 𝐴)‘(𝐾 + 𝑛)) ∈ ℂ)
81	72, 79, 80	syl2an2r 683	. . . . 5 ⊢ ((𝜑 ∧ 𝑛 ∈ 𝑍) → ((𝑗 ∈ 𝑊 ↦ 𝐴)‘(𝐾 + 𝑛)) ∈ ℂ)
82	41, 81	eqeltrd 2825	. . . 4 ⊢ ((𝜑 ∧ 𝑛 ∈ 𝑍) → ((𝑘 ∈ 𝑍 ↦ 𝐵)‘𝑛) ∈ ℂ)
83	9, 1, 75, 82	isum 15697	. . 3 ⊢ (𝜑 → Σ𝑛 ∈ 𝑍 ((𝑘 ∈ 𝑍 ↦ 𝐵)‘𝑛) = ( ⇝ ‘seq𝑀( + , (𝑘 ∈ 𝑍 ↦ 𝐵))))
84	69, 74, 83	3eqtr4d 2775	. 2 ⊢ (𝜑 → Σ𝑚 ∈ 𝑊 ((𝑗 ∈ 𝑊 ↦ 𝐴)‘𝑚) = Σ𝑛 ∈ 𝑍 ((𝑘 ∈ 𝑍 ↦ 𝐵)‘𝑛))
85		sumfc 15687	. 2 ⊢ Σ𝑚 ∈ 𝑊 ((𝑗 ∈ 𝑊 ↦ 𝐴)‘𝑚) = Σ𝑗 ∈ 𝑊 𝐴
86		sumfc 15687	. 2 ⊢ Σ𝑛 ∈ 𝑍 ((𝑘 ∈ 𝑍 ↦ 𝐵)‘𝑛) = Σ𝑘 ∈ 𝑍 𝐵
87	84, 85, 86	3eqtr3g 2788	1 ⊢ (𝜑 → Σ𝑗 ∈ 𝑊 𝐴 = Σ𝑘 ∈ 𝑍 𝐵)

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 205 ∧ wa 394 = wceq 1533 ∈ wcel 2098 ∀wral 3051 class class class wbr 5143 ↦ cmpt 5226 I cid 5569 ℩cio 6493 ⟶wf 6539 ‘cfv 6543 (class class class)co 7416 ℂcc 11136 + caddc 11141 − cmin 11474 ℤcz 12588 ℤ_≥cuz 12852 seqcseq 13998 shift cshi 15045 ⇝ cli 15460 Σcsu 15664

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1789 ax-4 1803 ax-5 1905 ax-6 1963 ax-7 2003 ax-8 2100 ax-9 2108 ax-10 2129 ax-11 2146 ax-12 2166 ax-ext 2696 ax-rep 5280 ax-sep 5294 ax-nul 5301 ax-pow 5359 ax-pr 5423 ax-un 7738 ax-inf2 9664 ax-cnex 11194 ax-resscn 11195 ax-1cn 11196 ax-icn 11197 ax-addcl 11198 ax-addrcl 11199 ax-mulcl 11200 ax-mulrcl 11201 ax-mulcom 11202 ax-addass 11203 ax-mulass 11204 ax-distr 11205 ax-i2m1 11206 ax-1ne0 11207 ax-1rid 11208 ax-rnegex 11209 ax-rrecex 11210 ax-cnre 11211 ax-pre-lttri 11212 ax-pre-lttrn 11213 ax-pre-ltadd 11214 ax-pre-mulgt0 11215

This theorem depends on definitions: df-bi 206 df-an 395 df-or 846 df-3or 1085 df-3an 1086 df-tru 1536 df-fal 1546 df-ex 1774 df-nf 1778 df-sb 2060 df-mo 2528 df-eu 2557 df-clab 2703 df-cleq 2717 df-clel 2802 df-nfc 2877 df-ne 2931 df-nel 3037 df-ral 3052 df-rex 3061 df-rmo 3364 df-reu 3365 df-rab 3420 df-v 3465 df-sbc 3769 df-csb 3885 df-dif 3942 df-un 3944 df-in 3946 df-ss 3956 df-pss 3959 df-nul 4319 df-if 4525 df-pw 4600 df-sn 4625 df-pr 4627 df-op 4631 df-uni 4904 df-int 4945 df-iun 4993 df-br 5144 df-opab 5206 df-mpt 5227 df-tr 5261 df-id 5570 df-eprel 5576 df-po 5584 df-so 5585 df-fr 5627 df-se 5628 df-we 5629 df-xp 5678 df-rel 5679 df-cnv 5680 df-co 5681 df-dm 5682 df-rn 5683 df-res 5684 df-ima 5685 df-pred 6300 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6495 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-isom 6552 df-riota 7372 df-ov 7419 df-oprab 7420 df-mpo 7421 df-om 7869 df-1st 7991 df-2nd 7992 df-frecs 8285 df-wrecs 8316 df-recs 8390 df-rdg 8429 df-1o 8485 df-er 8723 df-en 8963 df-dom 8964 df-sdom 8965 df-fin 8966 df-oi 9533 df-card 9962 df-pnf 11280 df-mnf 11281 df-xr 11282 df-ltxr 11283 df-le 11284 df-sub 11476 df-neg 11477 df-div 11902 df-nn 12243 df-2 12305 df-n0 12503 df-z 12589 df-uz 12853 df-rp 13007 df-fz 13517 df-fzo 13660 df-seq 13999 df-exp 14059 df-hash 14322 df-shft 15046 df-cj 15078 df-re 15079 df-im 15080 df-sqrt 15214 df-abs 15215 df-clim 15464 df-sum 15665

This theorem is referenced by: eftlub 16085 pserdv2 26385 logtayl 26612 binomcxplemnotnn0 43858

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