Theorem igsumvalx 13417

Description: Expand out the substitutions in df-igsum 13287. (Contributed by Mario Carneiro, 18-Sep-2015.)

Hypotheses

Ref	Expression
gsumval.b	⊢ 𝐵 = (Base‘𝐺)
gsumval.z	⊢ 0 = (0g‘𝐺)
gsumval.p	⊢ + = (+g‘𝐺)
gsumval.g	⊢ (𝜑 → 𝐺 ∈ 𝑉)
gsumvalx.f	⊢ (𝜑 → 𝐹 ∈ 𝑋)
gsumvalx.a	⊢ (𝜑 → dom 𝐹 = 𝐴)

Assertion

Ref	Expression
igsumvalx	⊢ (𝜑 → (𝐺 Σg 𝐹) = (℩𝑥((𝐴 = ∅ ∧ 𝑥 = 0 ) ∨ ∃𝑚∃𝑛 ∈ (ℤ≥‘𝑚)(𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛)))))

Distinct variable groups:   𝑥, +   𝑥, 0   𝑚,𝐹,𝑛,𝑥   𝑚,𝐺,𝑛,𝑥   𝜑,𝑚,𝑛,𝑥

Allowed substitution hints:   𝐴(𝑥,𝑚,𝑛)   𝐵(𝑥,𝑚,𝑛)   + (𝑚,𝑛)   𝑉(𝑥,𝑚,𝑛)   𝑋(𝑥,𝑚,𝑛)   0 (𝑚,𝑛)

Proof of Theorem igsumvalx

Dummy variables 𝑔 𝑤 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		df-igsum 13287	. . 3 ⊢ Σg = (𝑤 ∈ V, 𝑔 ∈ V ↦ (℩𝑥((dom 𝑔 = ∅ ∧ 𝑥 = (0g‘𝑤)) ∨ ∃𝑚∃𝑛 ∈ (ℤ≥‘𝑚)(dom 𝑔 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚((+g‘𝑤), 𝑔)‘𝑛)))))
2	1	a1i 9	. 2 ⊢ (𝜑 → Σg = (𝑤 ∈ V, 𝑔 ∈ V ↦ (℩𝑥((dom 𝑔 = ∅ ∧ 𝑥 = (0g‘𝑤)) ∨ ∃𝑚∃𝑛 ∈ (ℤ≥‘𝑚)(dom 𝑔 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚((+g‘𝑤), 𝑔)‘𝑛))))))
3		simprr 531	. . . . . . . 8 ⊢ ((𝜑 ∧ (𝑤 = 𝐺 ∧ 𝑔 = 𝐹)) → 𝑔 = 𝐹)
4	3	dmeqd 4924	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑤 = 𝐺 ∧ 𝑔 = 𝐹)) → dom 𝑔 = dom 𝐹)
5		gsumvalx.a	. . . . . . . 8 ⊢ (𝜑 → dom 𝐹 = 𝐴)
6	5	adantr 276	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑤 = 𝐺 ∧ 𝑔 = 𝐹)) → dom 𝐹 = 𝐴)
7	4, 6	eqtrd 2262	. . . . . 6 ⊢ ((𝜑 ∧ (𝑤 = 𝐺 ∧ 𝑔 = 𝐹)) → dom 𝑔 = 𝐴)
8	7	eqeq1d 2238	. . . . 5 ⊢ ((𝜑 ∧ (𝑤 = 𝐺 ∧ 𝑔 = 𝐹)) → (dom 𝑔 = ∅ ↔ 𝐴 = ∅))
9		simprl 529	. . . . . . . 8 ⊢ ((𝜑 ∧ (𝑤 = 𝐺 ∧ 𝑔 = 𝐹)) → 𝑤 = 𝐺)
10	9	fveq2d 5630	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑤 = 𝐺 ∧ 𝑔 = 𝐹)) → (0g‘𝑤) = (0g‘𝐺))
11		gsumval.z	. . . . . . 7 ⊢ 0 = (0g‘𝐺)
12	10, 11	eqtr4di 2280	. . . . . 6 ⊢ ((𝜑 ∧ (𝑤 = 𝐺 ∧ 𝑔 = 𝐹)) → (0g‘𝑤) = 0 )
13	12	eqeq2d 2241	. . . . 5 ⊢ ((𝜑 ∧ (𝑤 = 𝐺 ∧ 𝑔 = 𝐹)) → (𝑥 = (0g‘𝑤) ↔ 𝑥 = 0 ))
14	8, 13	anbi12d 473	. . . 4 ⊢ ((𝜑 ∧ (𝑤 = 𝐺 ∧ 𝑔 = 𝐹)) → ((dom 𝑔 = ∅ ∧ 𝑥 = (0g‘𝑤)) ↔ (𝐴 = ∅ ∧ 𝑥 = 0 )))
15	7	eqeq1d 2238	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑤 = 𝐺 ∧ 𝑔 = 𝐹)) → (dom 𝑔 = (𝑚...𝑛) ↔ 𝐴 = (𝑚...𝑛)))
16		eqidd 2230	. . . . . . . . . 10 ⊢ ((𝜑 ∧ (𝑤 = 𝐺 ∧ 𝑔 = 𝐹)) → 𝑚 = 𝑚)
17	9	fveq2d 5630	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ (𝑤 = 𝐺 ∧ 𝑔 = 𝐹)) → (+g‘𝑤) = (+g‘𝐺))
18		gsumval.p	. . . . . . . . . . 11 ⊢ + = (+g‘𝐺)
19	17, 18	eqtr4di 2280	. . . . . . . . . 10 ⊢ ((𝜑 ∧ (𝑤 = 𝐺 ∧ 𝑔 = 𝐹)) → (+g‘𝑤) = + )
20	16, 19, 3	seqeq123d 10673	. . . . . . . . 9 ⊢ ((𝜑 ∧ (𝑤 = 𝐺 ∧ 𝑔 = 𝐹)) → seq𝑚((+g‘𝑤), 𝑔) = seq𝑚( + , 𝐹))
21	20	fveq1d 5628	. . . . . . . 8 ⊢ ((𝜑 ∧ (𝑤 = 𝐺 ∧ 𝑔 = 𝐹)) → (seq𝑚((+g‘𝑤), 𝑔)‘𝑛) = (seq𝑚( + , 𝐹)‘𝑛))
22	21	eqeq2d 2241	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑤 = 𝐺 ∧ 𝑔 = 𝐹)) → (𝑥 = (seq𝑚((+g‘𝑤), 𝑔)‘𝑛) ↔ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛)))
23	15, 22	anbi12d 473	. . . . . 6 ⊢ ((𝜑 ∧ (𝑤 = 𝐺 ∧ 𝑔 = 𝐹)) → ((dom 𝑔 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚((+g‘𝑤), 𝑔)‘𝑛)) ↔ (𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛))))
24	23	rexbidv 2531	. . . . 5 ⊢ ((𝜑 ∧ (𝑤 = 𝐺 ∧ 𝑔 = 𝐹)) → (∃𝑛 ∈ (ℤ≥‘𝑚)(dom 𝑔 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚((+g‘𝑤), 𝑔)‘𝑛)) ↔ ∃𝑛 ∈ (ℤ≥‘𝑚)(𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛))))
25	24	exbidv 1871	. . . 4 ⊢ ((𝜑 ∧ (𝑤 = 𝐺 ∧ 𝑔 = 𝐹)) → (∃𝑚∃𝑛 ∈ (ℤ≥‘𝑚)(dom 𝑔 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚((+g‘𝑤), 𝑔)‘𝑛)) ↔ ∃𝑚∃𝑛 ∈ (ℤ≥‘𝑚)(𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛))))
26	14, 25	orbi12d 798	. . 3 ⊢ ((𝜑 ∧ (𝑤 = 𝐺 ∧ 𝑔 = 𝐹)) → (((dom 𝑔 = ∅ ∧ 𝑥 = (0g‘𝑤)) ∨ ∃𝑚∃𝑛 ∈ (ℤ≥‘𝑚)(dom 𝑔 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚((+g‘𝑤), 𝑔)‘𝑛))) ↔ ((𝐴 = ∅ ∧ 𝑥 = 0 ) ∨ ∃𝑚∃𝑛 ∈ (ℤ≥‘𝑚)(𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛)))))
27	26	iotabidv 5300	. 2 ⊢ ((𝜑 ∧ (𝑤 = 𝐺 ∧ 𝑔 = 𝐹)) → (℩𝑥((dom 𝑔 = ∅ ∧ 𝑥 = (0g‘𝑤)) ∨ ∃𝑚∃𝑛 ∈ (ℤ≥‘𝑚)(dom 𝑔 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚((+g‘𝑤), 𝑔)‘𝑛)))) = (℩𝑥((𝐴 = ∅ ∧ 𝑥 = 0 ) ∨ ∃𝑚∃𝑛 ∈ (ℤ≥‘𝑚)(𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛)))))
28		gsumval.g	. . 3 ⊢ (𝜑 → 𝐺 ∈ 𝑉)
29	28	elexd 2813	. 2 ⊢ (𝜑 → 𝐺 ∈ V)
30		gsumvalx.f	. . 3 ⊢ (𝜑 → 𝐹 ∈ 𝑋)
31	30	elexd 2813	. 2 ⊢ (𝜑 → 𝐹 ∈ V)
32		unab 3471	. . . 4 ⊢ ({𝑥 ∣ (𝐴 = ∅ ∧ 𝑥 = 0 )} ∪ {𝑥 ∣ ∃𝑚∃𝑛 ∈ (ℤ≥‘𝑚)(𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛))}) = {𝑥 ∣ ((𝐴 = ∅ ∧ 𝑥 = 0 ) ∨ ∃𝑚∃𝑛 ∈ (ℤ≥‘𝑚)(𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛)))}
33		df-sn 3672	. . . . . . 7 ⊢ { 0 } = {𝑥 ∣ 𝑥 = 0 }
34		fn0g 13403	. . . . . . . . . 10 ⊢ 0g Fn V
35		funfvex 5643	. . . . . . . . . . 11 ⊢ ((Fun 0g ∧ 𝐺 ∈ dom 0g) → (0g‘𝐺) ∈ V)
36	35	funfni 5422	. . . . . . . . . 10 ⊢ ((0g Fn V ∧ 𝐺 ∈ V) → (0g‘𝐺) ∈ V)
37	34, 29, 36	sylancr 414	. . . . . . . . 9 ⊢ (𝜑 → (0g‘𝐺) ∈ V)
38	11, 37	eqeltrid 2316	. . . . . . . 8 ⊢ (𝜑 → 0 ∈ V)
39		snexg 4267	. . . . . . . 8 ⊢ ( 0 ∈ V → { 0 } ∈ V)
40	38, 39	syl 14	. . . . . . 7 ⊢ (𝜑 → { 0 } ∈ V)
41	33, 40	eqeltrrid 2317	. . . . . 6 ⊢ (𝜑 → {𝑥 ∣ 𝑥 = 0 } ∈ V)
42		simpr 110	. . . . . . . 8 ⊢ ((𝐴 = ∅ ∧ 𝑥 = 0 ) → 𝑥 = 0 )
43	42	ss2abi 3296	. . . . . . 7 ⊢ {𝑥 ∣ (𝐴 = ∅ ∧ 𝑥 = 0 )} ⊆ {𝑥 ∣ 𝑥 = 0 }
44	43	a1i 9	. . . . . 6 ⊢ (𝜑 → {𝑥 ∣ (𝐴 = ∅ ∧ 𝑥 = 0 )} ⊆ {𝑥 ∣ 𝑥 = 0 })
45	41, 44	ssexd 4223	. . . . 5 ⊢ (𝜑 → {𝑥 ∣ (𝐴 = ∅ ∧ 𝑥 = 0 )} ∈ V)
46		zex 9451	. . . . . . 7 ⊢ ℤ ∈ V
47	46, 46	ab2rexex 6274	. . . . . 6 ⊢ {𝑥 ∣ ∃𝑚 ∈ ℤ ∃𝑛 ∈ ℤ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛)} ∈ V
48		df-rex 2514	. . . . . . . . . . . 12 ⊢ (∃𝑛 ∈ (ℤ≥‘𝑚)(𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛)) ↔ ∃𝑛(𝑛 ∈ (ℤ≥‘𝑚) ∧ (𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛))))
49		eluzel2 9723	. . . . . . . . . . . . . . . 16 ⊢ (𝑛 ∈ (ℤ≥‘𝑚) → 𝑚 ∈ ℤ)
50		eluzelz 9727	. . . . . . . . . . . . . . . 16 ⊢ (𝑛 ∈ (ℤ≥‘𝑚) → 𝑛 ∈ ℤ)
51	49, 50	jca 306	. . . . . . . . . . . . . . 15 ⊢ (𝑛 ∈ (ℤ≥‘𝑚) → (𝑚 ∈ ℤ ∧ 𝑛 ∈ ℤ))
52		simpr 110	. . . . . . . . . . . . . . 15 ⊢ ((𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛)) → 𝑥 = (seq𝑚( + , 𝐹)‘𝑛))
53	51, 52	anim12i 338	. . . . . . . . . . . . . 14 ⊢ ((𝑛 ∈ (ℤ≥‘𝑚) ∧ (𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛))) → ((𝑚 ∈ ℤ ∧ 𝑛 ∈ ℤ) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛)))
54		anass 401	. . . . . . . . . . . . . 14 ⊢ (((𝑚 ∈ ℤ ∧ 𝑛 ∈ ℤ) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛)) ↔ (𝑚 ∈ ℤ ∧ (𝑛 ∈ ℤ ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛))))
55	53, 54	sylib 122	. . . . . . . . . . . . 13 ⊢ ((𝑛 ∈ (ℤ≥‘𝑚) ∧ (𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛))) → (𝑚 ∈ ℤ ∧ (𝑛 ∈ ℤ ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛))))
56	55	eximi 1646	. . . . . . . . . . . 12 ⊢ (∃𝑛(𝑛 ∈ (ℤ≥‘𝑚) ∧ (𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛))) → ∃𝑛(𝑚 ∈ ℤ ∧ (𝑛 ∈ ℤ ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛))))
57	48, 56	sylbi 121	. . . . . . . . . . 11 ⊢ (∃𝑛 ∈ (ℤ≥‘𝑚)(𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛)) → ∃𝑛(𝑚 ∈ ℤ ∧ (𝑛 ∈ ℤ ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛))))
58		19.42v 1953	. . . . . . . . . . 11 ⊢ (∃𝑛(𝑚 ∈ ℤ ∧ (𝑛 ∈ ℤ ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛))) ↔ (𝑚 ∈ ℤ ∧ ∃𝑛(𝑛 ∈ ℤ ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛))))
59	57, 58	sylib 122	. . . . . . . . . 10 ⊢ (∃𝑛 ∈ (ℤ≥‘𝑚)(𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛)) → (𝑚 ∈ ℤ ∧ ∃𝑛(𝑛 ∈ ℤ ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛))))
60		df-rex 2514	. . . . . . . . . . 11 ⊢ (∃𝑛 ∈ ℤ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛) ↔ ∃𝑛(𝑛 ∈ ℤ ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛)))
61	60	anbi2i 457	. . . . . . . . . 10 ⊢ ((𝑚 ∈ ℤ ∧ ∃𝑛 ∈ ℤ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛)) ↔ (𝑚 ∈ ℤ ∧ ∃𝑛(𝑛 ∈ ℤ ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛))))
62	59, 61	sylibr 134	. . . . . . . . 9 ⊢ (∃𝑛 ∈ (ℤ≥‘𝑚)(𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛)) → (𝑚 ∈ ℤ ∧ ∃𝑛 ∈ ℤ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛)))
63	62	eximi 1646	. . . . . . . 8 ⊢ (∃𝑚∃𝑛 ∈ (ℤ≥‘𝑚)(𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛)) → ∃𝑚(𝑚 ∈ ℤ ∧ ∃𝑛 ∈ ℤ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛)))
64		df-rex 2514	. . . . . . . 8 ⊢ (∃𝑚 ∈ ℤ ∃𝑛 ∈ ℤ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛) ↔ ∃𝑚(𝑚 ∈ ℤ ∧ ∃𝑛 ∈ ℤ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛)))
65	63, 64	sylibr 134	. . . . . . 7 ⊢ (∃𝑚∃𝑛 ∈ (ℤ≥‘𝑚)(𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛)) → ∃𝑚 ∈ ℤ ∃𝑛 ∈ ℤ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛))
66	65	ss2abi 3296	. . . . . 6 ⊢ {𝑥 ∣ ∃𝑚∃𝑛 ∈ (ℤ≥‘𝑚)(𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛))} ⊆ {𝑥 ∣ ∃𝑚 ∈ ℤ ∃𝑛 ∈ ℤ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛)}
67	47, 66	ssexi 4221	. . . . 5 ⊢ {𝑥 ∣ ∃𝑚∃𝑛 ∈ (ℤ≥‘𝑚)(𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛))} ∈ V
68		unexg 4533	. . . . 5 ⊢ (({𝑥 ∣ (𝐴 = ∅ ∧ 𝑥 = 0 )} ∈ V ∧ {𝑥 ∣ ∃𝑚∃𝑛 ∈ (ℤ≥‘𝑚)(𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛))} ∈ V) → ({𝑥 ∣ (𝐴 = ∅ ∧ 𝑥 = 0 )} ∪ {𝑥 ∣ ∃𝑚∃𝑛 ∈ (ℤ≥‘𝑚)(𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛))}) ∈ V)
69	45, 67, 68	sylancl 413	. . . 4 ⊢ (𝜑 → ({𝑥 ∣ (𝐴 = ∅ ∧ 𝑥 = 0 )} ∪ {𝑥 ∣ ∃𝑚∃𝑛 ∈ (ℤ≥‘𝑚)(𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛))}) ∈ V)
70	32, 69	eqeltrrid 2317	. . 3 ⊢ (𝜑 → {𝑥 ∣ ((𝐴 = ∅ ∧ 𝑥 = 0 ) ∨ ∃𝑚∃𝑛 ∈ (ℤ≥‘𝑚)(𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛)))} ∈ V)
71		iotaexab 5296	. . 3 ⊢ ({𝑥 ∣ ((𝐴 = ∅ ∧ 𝑥 = 0 ) ∨ ∃𝑚∃𝑛 ∈ (ℤ≥‘𝑚)(𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛)))} ∈ V → (℩𝑥((𝐴 = ∅ ∧ 𝑥 = 0 ) ∨ ∃𝑚∃𝑛 ∈ (ℤ≥‘𝑚)(𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛)))) ∈ V)
72	70, 71	syl 14	. 2 ⊢ (𝜑 → (℩𝑥((𝐴 = ∅ ∧ 𝑥 = 0 ) ∨ ∃𝑚∃𝑛 ∈ (ℤ≥‘𝑚)(𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛)))) ∈ V)
73	2, 27, 29, 31, 72	ovmpod 6131	1 ⊢ (𝜑 → (𝐺 Σg 𝐹) = (℩𝑥((𝐴 = ∅ ∧ 𝑥 = 0 ) ∨ ∃𝑚∃𝑛 ∈ (ℤ≥‘𝑚)(𝐴 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚( + , 𝐹)‘𝑛)))))

Syntax hints:   → wi 4   ∧ wa 104   ∨ wo 713   = wceq 1395  ∃wex 1538   ∈ wcel 2200  {cab 2215  ∃wrex 2509  Vcvv 2799   ∪ cun 3195   ⊆ wss 3197  ∅c0 3491  {csn 3666  dom cdm 4718  ℩cio 5275   Fn wfn 5312  ‘cfv 5317  (class class class)co 6000   ∈ cmpo 6002  ℤcz 9442  ℤ_≥cuz 9718  ...cfz 10200  seqcseq 10664  Basecbs 13027  +_gcplusg 13105  0_gc0g 13284   Σ_g cgsu 13285

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 617  ax-in2 618  ax-io 714  ax-5 1493  ax-7 1494  ax-gen 1495  ax-ie1 1539  ax-ie2 1540  ax-8 1550  ax-10 1551  ax-11 1552  ax-i12 1553  ax-bndl 1555  ax-4 1556  ax-17 1572  ax-i9 1576  ax-ial 1580  ax-i5r 1581  ax-13 2202  ax-14 2203  ax-ext 2211  ax-coll 4198  ax-sep 4201  ax-pow 4257  ax-pr 4292  ax-un 4523  ax-setind 4628  ax-cnex 8086  ax-resscn 8087  ax-1re 8089  ax-addrcl 8092

This theorem depends on definitions:  df-bi 117  df-3or 1003  df-3an 1004  df-tru 1398  df-fal 1401  df-nf 1507  df-sb 1809  df-eu 2080  df-mo 2081  df-clab 2216  df-cleq 2222  df-clel 2225  df-nfc 2361  df-ne 2401  df-ral 2513  df-rex 2514  df-reu 2515  df-rab 2517  df-v 2801  df-sbc 3029  df-csb 3125  df-dif 3199  df-un 3201  df-in 3203  df-ss 3210  df-pw 3651  df-sn 3672  df-pr 3673  df-op 3675  df-uni 3888  df-int 3923  df-iun 3966  df-br 4083  df-opab 4145  df-mpt 4146  df-id 4383  df-xp 4724  df-rel 4725  df-cnv 4726  df-co 4727  df-dm 4728  df-rn 4729  df-res 4730  df-ima 4731  df-iota 5277  df-fun 5319  df-fn 5320  df-f 5321  df-f1 5322  df-fo 5323  df-f1o 5324  df-fv 5325  df-riota 5953  df-ov 6003  df-oprab 6004  df-mpo 6005  df-recs 6449  df-frec 6535  df-neg 8316  df-inn 9107  df-z 9443  df-uz 9719  df-seqfrec 10665  df-ndx 13030  df-slot 13031  df-base 13033  df-0g 13286  df-igsum 13287

This theorem is referenced by:  igsumval  13418  gsumpropd  13420  gsumpropd2  13421