dvmptfprodlem - Mathbox for Glauco Siliprandi

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Theorem dvmptfprodlem 46773

Description: Induction step for dvmptfprod 46774. (Contributed by Glauco Siliprandi, 5-Apr-2020.)

**Hypotheses**
Ref	Expression
dvmptfprodlem.xph	⊢ Ⅎ𝑥𝜑
dvmptfprodlem.iph	⊢ Ⅎ𝑖𝜑
dvmptfprodlem.jph	⊢ Ⅎ𝑗𝜑
dvmptfprodlem.if	⊢ Ⅎ𝑖𝐹
dvmptfprodlem.jg	⊢ Ⅎ𝑗𝐺
dvmptfprodlem.a	⊢ ((𝜑 ∧ 𝑖 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ)
dvmptfprodlem.d	⊢ (𝜑 → 𝐷 ∈ Fin)
dvmptfprodlem.e	⊢ (𝜑 → 𝐸 ∈ V)
dvmptfprodlem.db	⊢ (𝜑 → ¬ 𝐸 ∈ 𝐷)
dvmptfprodlem.ss	⊢ (𝜑 → (𝐷 ∪ {𝐸}) ⊆ 𝐼)
dvmptfprodlem.s	⊢ (𝜑 → 𝑆 ∈ {ℝ, ℂ})
dvmptfprodlem.c	⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → 𝐶 ∈ ℂ)
dvmptfprodlem.dvp	⊢ (𝜑 → (𝑆 D (𝑥 ∈ 𝑋 ↦ ∏𝑖 ∈ 𝐷 𝐴)) = (𝑥 ∈ 𝑋 ↦ Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴)))
dvmptfprodlem.14	⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → 𝐺 ∈ ℂ)
dvmptfprodlem.dvf	⊢ (𝜑 → (𝑆 D (𝑥 ∈ 𝑋 ↦ 𝐹)) = (𝑥 ∈ 𝑋 ↦ 𝐺))
dvmptfprodlem.f	⊢ (𝑖 = 𝐸 → 𝐴 = 𝐹)
dvmptfprodlem.cg	⊢ (𝑗 = 𝐸 → 𝐶 = 𝐺)

**Assertion**
Ref	Expression
dvmptfprodlem	⊢ (𝜑 → (𝑆 D (𝑥 ∈ 𝑋 ↦ ∏𝑖 ∈ (𝐷 ∪ {𝐸})𝐴)) = (𝑥 ∈ 𝑋 ↦ Σ𝑗 ∈ (𝐷 ∪ {𝐸})(𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴)))

Distinct variable groups: 𝐴,𝑗 𝐷,𝑖,𝑗,𝑥 𝑖,𝐸,𝑗,𝑥 𝑗,𝐹 𝑖,𝐼 𝑖,𝑋,𝑗,𝑥 Allowed substitution hints: 𝜑(𝑥, 𝑖, 𝑗) 𝐴(𝑥, 𝑖) 𝐶(𝑥, 𝑖, 𝑗) 𝑆(𝑥, 𝑖, 𝑗) 𝐹(𝑥, 𝑖) 𝐺(𝑥, 𝑖, 𝑗) 𝐼(𝑥, 𝑗)

**Proof of Theorem dvmptfprodlem**
Step	Hyp	Ref	Expression
1		dvmptfprodlem.xph	. . . 4 ⊢ Ⅎ𝑥𝜑
2		dvmptfprodlem.iph	. . . . . . 7 ⊢ Ⅎ𝑖𝜑
3		nfcv 2922	. . . . . . . 8 ⊢ Ⅎ𝑖𝑥
4		nfcv 2922	. . . . . . . 8 ⊢ Ⅎ𝑖𝑋
5	3, 4	nfel 2936	. . . . . . 7 ⊢ Ⅎ𝑖 𝑥 ∈ 𝑋
6	2, 5	nfan 1932	. . . . . 6 ⊢ Ⅎ𝑖(𝜑 ∧ 𝑥 ∈ 𝑋)
7		dvmptfprodlem.if	. . . . . . 7 ⊢ Ⅎ𝑖𝐹
8	7	a1i 11	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → Ⅎ𝑖𝐹)
9		dvmptfprodlem.d	. . . . . . . 8 ⊢ (𝜑 → 𝐷 ∈ Fin)
10		snfi 9051	. . . . . . . . 9 ⊢ {𝐸} ∈ Fin
11	10	a1i 11	. . . . . . . 8 ⊢ (𝜑 → {𝐸} ∈ Fin)
12		unfi 9166	. . . . . . . 8 ⊢ ((𝐷 ∈ Fin ∧ {𝐸} ∈ Fin) → (𝐷 ∪ {𝐸}) ∈ Fin)
13	9, 11, 12	syl2anc 596	. . . . . . 7 ⊢ (𝜑 → (𝐷 ∪ {𝐸}) ∈ Fin)
14	13	adantr 486	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (𝐷 ∪ {𝐸}) ∈ Fin)
15		simpll 779	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ (𝐷 ∪ {𝐸})) → 𝜑)
16		dvmptfprodlem.ss	. . . . . . . . 9 ⊢ (𝜑 → (𝐷 ∪ {𝐸}) ⊆ 𝐼)
17	16	sselda 3931	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑖 ∈ (𝐷 ∪ {𝐸})) → 𝑖 ∈ 𝐼)
18	17	adantlr 728	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ (𝐷 ∪ {𝐸})) → 𝑖 ∈ 𝐼)
19		simplr 781	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ (𝐷 ∪ {𝐸})) → 𝑥 ∈ 𝑋)
20		dvmptfprodlem.a	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ)
21	15, 18, 19, 20	syl3anc 1398	. . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ (𝐷 ∪ {𝐸})) → 𝐴 ∈ ℂ)
22		dvmptfprodlem.e	. . . . . . . . 9 ⊢ (𝜑 → 𝐸 ∈ V)
23		snidg 4621	. . . . . . . . 9 ⊢ (𝐸 ∈ V → 𝐸 ∈ {𝐸})
24	22, 23	syl 18	. . . . . . . 8 ⊢ (𝜑 → 𝐸 ∈ {𝐸})
25		elun2 4129	. . . . . . . 8 ⊢ (𝐸 ∈ {𝐸} → 𝐸 ∈ (𝐷 ∪ {𝐸}))
26	24, 25	syl 18	. . . . . . 7 ⊢ (𝜑 → 𝐸 ∈ (𝐷 ∪ {𝐸}))
27	26	adantr 486	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → 𝐸 ∈ (𝐷 ∪ {𝐸}))
28		dvmptfprodlem.f	. . . . . . 7 ⊢ (𝑖 = 𝐸 → 𝐴 = 𝐹)
29	28	adantl 487	. . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 = 𝐸) → 𝐴 = 𝐹)
30	6, 8, 14, 21, 27, 29	fprodsplit1f 16078	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ∏𝑖 ∈ (𝐷 ∪ {𝐸})𝐴 = (𝐹 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴))
31		difundir 4237	. . . . . . . . . 10 ⊢ ((𝐷 ∪ {𝐸}) ∖ {𝐸}) = ((𝐷 ∖ {𝐸}) ∪ ({𝐸} ∖ {𝐸}))
32	31	a1i 11	. . . . . . . . 9 ⊢ (𝜑 → ((𝐷 ∪ {𝐸}) ∖ {𝐸}) = ((𝐷 ∖ {𝐸}) ∪ ({𝐸} ∖ {𝐸})))
33		dvmptfprodlem.db	. . . . . . . . . . 11 ⊢ (𝜑 → ¬ 𝐸 ∈ 𝐷)
34		difsn 4761	. . . . . . . . . . 11 ⊢ (¬ 𝐸 ∈ 𝐷 → (𝐷 ∖ {𝐸}) = 𝐷)
35	33, 34	syl 18	. . . . . . . . . 10 ⊢ (𝜑 → (𝐷 ∖ {𝐸}) = 𝐷)
36		difid 4325	. . . . . . . . . . 11 ⊢ ({𝐸} ∖ {𝐸}) = ∅
37	36	a1i 11	. . . . . . . . . 10 ⊢ (𝜑 → ({𝐸} ∖ {𝐸}) = ∅)
38	35, 37	uneq12d 4116	. . . . . . . . 9 ⊢ (𝜑 → ((𝐷 ∖ {𝐸}) ∪ ({𝐸} ∖ {𝐸})) = (𝐷 ∪ ∅))
39		un0 4344	. . . . . . . . . 10 ⊢ (𝐷 ∪ ∅) = 𝐷
40	39	a1i 11	. . . . . . . . 9 ⊢ (𝜑 → (𝐷 ∪ ∅) = 𝐷)
41	32, 38, 40	3eqtrd 2799	. . . . . . . 8 ⊢ (𝜑 → ((𝐷 ∪ {𝐸}) ∖ {𝐸}) = 𝐷)
42	41	prodeq1d 16009	. . . . . . 7 ⊢ (𝜑 → ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴 = ∏𝑖 ∈ 𝐷 𝐴)
43	42	oveq2d 7430	. . . . . 6 ⊢ (𝜑 → (𝐹 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴) = (𝐹 · ∏𝑖 ∈ 𝐷 𝐴))
44	43	adantr 486	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (𝐹 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴) = (𝐹 · ∏𝑖 ∈ 𝐷 𝐴))
45	30, 44	eqtrd 2795	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ∏𝑖 ∈ (𝐷 ∪ {𝐸})𝐴 = (𝐹 · ∏𝑖 ∈ 𝐷 𝐴))
46	1, 45	mpteq2da 5197	. . 3 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ ∏𝑖 ∈ (𝐷 ∪ {𝐸})𝐴) = (𝑥 ∈ 𝑋 ↦ (𝐹 · ∏𝑖 ∈ 𝐷 𝐴)))
47	46	oveq2d 7430	. 2 ⊢ (𝜑 → (𝑆 D (𝑥 ∈ 𝑋 ↦ ∏𝑖 ∈ (𝐷 ∪ {𝐸})𝐴)) = (𝑆 D (𝑥 ∈ 𝑋 ↦ (𝐹 · ∏𝑖 ∈ 𝐷 𝐴))))
48		dvmptfprodlem.s	. . 3 ⊢ (𝜑 → 𝑆 ∈ {ℝ, ℂ})
49	16, 26	sseldd 3932	. . . . 5 ⊢ (𝜑 → 𝐸 ∈ 𝐼)
50	49	adantr 486	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → 𝐸 ∈ 𝐼)
51		simpl 488	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → 𝜑)
52		simpr 490	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → 𝑥 ∈ 𝑋)
53	51, 50, 52	3jca 1146	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋))
54		nfcv 2922	. . . . 5 ⊢ Ⅎ𝑖𝐸
55		nfv 1947	. . . . . . 7 ⊢ Ⅎ𝑖 𝐸 ∈ 𝐼
56	2, 55, 5	nf3an 1934	. . . . . 6 ⊢ Ⅎ𝑖(𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋)
57		nfcv 2922	. . . . . . 7 ⊢ Ⅎ𝑖ℂ
58	7, 57	nfel 2936	. . . . . 6 ⊢ Ⅎ𝑖 𝐹 ∈ ℂ
59	56, 58	nfim 1929	. . . . 5 ⊢ Ⅎ𝑖((𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐹 ∈ ℂ)
60		ancom 466	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 = 𝐸) ↔ (𝑖 = 𝐸 ∧ (𝜑 ∧ 𝑥 ∈ 𝑋)))
61	60	imbi1i 352	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 = 𝐸) → 𝐴 = 𝐹) ↔ ((𝑖 = 𝐸 ∧ (𝜑 ∧ 𝑥 ∈ 𝑋)) → 𝐴 = 𝐹))
62		eqcom 2767	. . . . . . . . . . . . 13 ⊢ (𝐴 = 𝐹 ↔ 𝐹 = 𝐴)
63	62	imbi2i 339	. . . . . . . . . . . 12 ⊢ (((𝑖 = 𝐸 ∧ (𝜑 ∧ 𝑥 ∈ 𝑋)) → 𝐴 = 𝐹) ↔ ((𝑖 = 𝐸 ∧ (𝜑 ∧ 𝑥 ∈ 𝑋)) → 𝐹 = 𝐴))
64	61, 63	bitri 278	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 = 𝐸) → 𝐴 = 𝐹) ↔ ((𝑖 = 𝐸 ∧ (𝜑 ∧ 𝑥 ∈ 𝑋)) → 𝐹 = 𝐴))
65	29, 64	mpbi 233	. . . . . . . . . 10 ⊢ ((𝑖 = 𝐸 ∧ (𝜑 ∧ 𝑥 ∈ 𝑋)) → 𝐹 = 𝐴)
66	65	3adantr2 1189	. . . . . . . . 9 ⊢ ((𝑖 = 𝐸 ∧ (𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋)) → 𝐹 = 𝐴)
67	66	3adant2 1149	. . . . . . . 8 ⊢ ((𝑖 = 𝐸 ∧ ((𝜑 ∧ 𝑖 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ) ∧ (𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋)) → 𝐹 = 𝐴)
68		simp3 1156	. . . . . . . . 9 ⊢ ((𝑖 = 𝐸 ∧ ((𝜑 ∧ 𝑖 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ) ∧ (𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋)) → (𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋))
69		eleq1 2848	. . . . . . . . . . . . 13 ⊢ (𝑖 = 𝐸 → (𝑖 ∈ 𝐼 ↔ 𝐸 ∈ 𝐼))
70	69	3anbi2d 1469	. . . . . . . . . . . 12 ⊢ (𝑖 = 𝐸 → ((𝜑 ∧ 𝑖 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) ↔ (𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋)))
71	70	imbi1d 344	. . . . . . . . . . 11 ⊢ (𝑖 = 𝐸 → (((𝜑 ∧ 𝑖 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ) ↔ ((𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ)))
72	71	biimpa 482	. . . . . . . . . 10 ⊢ ((𝑖 = 𝐸 ∧ ((𝜑 ∧ 𝑖 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ)) → ((𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ))
73	72	3adant3 1150	. . . . . . . . 9 ⊢ ((𝑖 = 𝐸 ∧ ((𝜑 ∧ 𝑖 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ) ∧ (𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋)) → ((𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ))
74	68, 73	mpd 16	. . . . . . . 8 ⊢ ((𝑖 = 𝐸 ∧ ((𝜑 ∧ 𝑖 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ) ∧ (𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋)) → 𝐴 ∈ ℂ)
75	67, 74	eqeltrd 2860	. . . . . . 7 ⊢ ((𝑖 = 𝐸 ∧ ((𝜑 ∧ 𝑖 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ) ∧ (𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋)) → 𝐹 ∈ ℂ)
76	75	3exp 1137	. . . . . 6 ⊢ (𝑖 = 𝐸 → (((𝜑 ∧ 𝑖 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ) → ((𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐹 ∈ ℂ)))
77	20	2a1i 12	. . . . . 6 ⊢ (𝑖 = 𝐸 → (((𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐹 ∈ ℂ) → ((𝜑 ∧ 𝑖 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ)))
78	76, 77	impbid 215	. . . . 5 ⊢ (𝑖 = 𝐸 → (((𝜑 ∧ 𝑖 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ) ↔ ((𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐹 ∈ ℂ)))
79	54, 59, 78, 20	vtoclgf 3529	. . . 4 ⊢ (𝐸 ∈ 𝐼 → ((𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐹 ∈ ℂ))
80	50, 53, 79	sylc 66	. . 3 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → 𝐹 ∈ ℂ)
81		dvmptfprodlem.14	. . 3 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → 𝐺 ∈ ℂ)
82		dvmptfprodlem.dvf	. . 3 ⊢ (𝜑 → (𝑆 D (𝑥 ∈ 𝑋 ↦ 𝐹)) = (𝑥 ∈ 𝑋 ↦ 𝐺))
83	51, 9	syl 18	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → 𝐷 ∈ Fin)
84	51	adantr 486	. . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ 𝐷) → 𝜑)
85	16	adantr 486	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝐷) → (𝐷 ∪ {𝐸}) ⊆ 𝐼)
86		elun1 4128	. . . . . . . 8 ⊢ (𝑖 ∈ 𝐷 → 𝑖 ∈ (𝐷 ∪ {𝐸}))
87	86	adantl 487	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝐷) → 𝑖 ∈ (𝐷 ∪ {𝐸}))
88	85, 87	sseldd 3932	. . . . . 6 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝐷) → 𝑖 ∈ 𝐼)
89	88	adantlr 728	. . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ 𝐷) → 𝑖 ∈ 𝐼)
90	52	adantr 486	. . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ 𝐷) → 𝑥 ∈ 𝑋)
91	84, 89, 90, 20	syl3anc 1398	. . . 4 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ 𝐷) → 𝐴 ∈ ℂ)
92	6, 83, 91	fprodclf 16080	. . 3 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ∏𝑖 ∈ 𝐷 𝐴 ∈ ℂ)
93		dvmptfprodlem.jph	. . . . 5 ⊢ Ⅎ𝑗𝜑
94		nfv 1947	. . . . 5 ⊢ Ⅎ𝑗 𝑥 ∈ 𝑋
95	93, 94	nfan 1932	. . . 4 ⊢ Ⅎ𝑗(𝜑 ∧ 𝑥 ∈ 𝑋)
96		dvmptfprodlem.c	. . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → 𝐶 ∈ ℂ)
97		diffi 9170	. . . . . . . . 9 ⊢ (𝐷 ∈ Fin → (𝐷 ∖ {𝑗}) ∈ Fin)
98	9, 97	syl 18	. . . . . . . 8 ⊢ (𝜑 → (𝐷 ∖ {𝑗}) ∈ Fin)
99	98	adantr 486	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (𝐷 ∖ {𝑗}) ∈ Fin)
100		eldifi 4078	. . . . . . . . 9 ⊢ (𝑖 ∈ (𝐷 ∖ {𝑗}) → 𝑖 ∈ 𝐷)
101	100	adantl 487	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ (𝐷 ∖ {𝑗})) → 𝑖 ∈ 𝐷)
102	101, 91	syldan 603	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ (𝐷 ∖ {𝑗})) → 𝐴 ∈ ℂ)
103	6, 99, 102	fprodclf 16080	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴 ∈ ℂ)
104	103	adantr 486	. . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴 ∈ ℂ)
105	96, 104	mulcld 11254	. . . 4 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → (𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) ∈ ℂ)
106	95, 83, 105	fsumclf 15825	. . 3 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) ∈ ℂ)
107		dvmptfprodlem.dvp	. . 3 ⊢ (𝜑 → (𝑆 D (𝑥 ∈ 𝑋 ↦ ∏𝑖 ∈ 𝐷 𝐴)) = (𝑥 ∈ 𝑋 ↦ Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴)))
108	1, 48, 80, 81, 82, 92, 106, 107	dvmptmulf 46766	. 2 ⊢ (𝜑 → (𝑆 D (𝑥 ∈ 𝑋 ↦ (𝐹 · ∏𝑖 ∈ 𝐷 𝐴))) = (𝑥 ∈ 𝑋 ↦ ((𝐺 · ∏𝑖 ∈ 𝐷 𝐴) + (Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹))))
109		dvmptfprodlem.jg	. . . . . 6 ⊢ Ⅎ𝑗𝐺
110		nfcv 2922	. . . . . 6 ⊢ Ⅎ𝑗 ·
111		nfcv 2922	. . . . . 6 ⊢ Ⅎ𝑗∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴
112	109, 110, 111	nfov 7444	. . . . 5 ⊢ Ⅎ𝑗(𝐺 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴)
113	51, 22	syl 18	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → 𝐸 ∈ V)
114	51, 33	syl 18	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ¬ 𝐸 ∈ 𝐷)
115		diffi 9170	. . . . . . . . . 10 ⊢ ((𝐷 ∪ {𝐸}) ∈ Fin → ((𝐷 ∪ {𝐸}) ∖ {𝑗}) ∈ Fin)
116	13, 115	syl 18	. . . . . . . . 9 ⊢ (𝜑 → ((𝐷 ∪ {𝐸}) ∖ {𝑗}) ∈ Fin)
117	116	adantr 486	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ((𝐷 ∪ {𝐸}) ∖ {𝑗}) ∈ Fin)
118		eldifi 4078	. . . . . . . . . 10 ⊢ (𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗}) → 𝑖 ∈ (𝐷 ∪ {𝐸}))
119	118	adantl 487	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})) → 𝑖 ∈ (𝐷 ∪ {𝐸}))
120	119, 21	syldan 603	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})) → 𝐴 ∈ ℂ)
121	6, 117, 120	fprodclf 16080	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴 ∈ ℂ)
122	121	adantr 486	. . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴 ∈ ℂ)
123	96, 122	mulcld 11254	. . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → (𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴) ∈ ℂ)
124		dvmptfprodlem.cg	. . . . . 6 ⊢ (𝑗 = 𝐸 → 𝐶 = 𝐺)
125		sneq 4594	. . . . . . . 8 ⊢ (𝑗 = 𝐸 → {𝑗} = {𝐸})
126	125	difeq2d 4074	. . . . . . 7 ⊢ (𝑗 = 𝐸 → ((𝐷 ∪ {𝐸}) ∖ {𝑗}) = ((𝐷 ∪ {𝐸}) ∖ {𝐸}))
127	126	prodeq1d 16009	. . . . . 6 ⊢ (𝑗 = 𝐸 → ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴 = ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴)
128	124, 127	oveq12d 7432	. . . . 5 ⊢ (𝑗 = 𝐸 → (𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴) = (𝐺 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴))
129	41, 9	eqeltrd 2860	. . . . . . . 8 ⊢ (𝜑 → ((𝐷 ∪ {𝐸}) ∖ {𝐸}) ∈ Fin)
130	129	adantr 486	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ((𝐷 ∪ {𝐸}) ∖ {𝐸}) ∈ Fin)
131	51	adantr 486	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})) → 𝜑)
132	16	adantr 486	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})) → (𝐷 ∪ {𝐸}) ⊆ 𝐼)
133		eldifi 4078	. . . . . . . . . . 11 ⊢ (𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸}) → 𝑖 ∈ (𝐷 ∪ {𝐸}))
134	133	adantl 487	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})) → 𝑖 ∈ (𝐷 ∪ {𝐸}))
135	132, 134	sseldd 3932	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})) → 𝑖 ∈ 𝐼)
136	135	adantlr 728	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})) → 𝑖 ∈ 𝐼)
137	52	adantr 486	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})) → 𝑥 ∈ 𝑋)
138	131, 136, 137, 20	syl3anc 1398	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})) → 𝐴 ∈ ℂ)
139	6, 130, 138	fprodclf 16080	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴 ∈ ℂ)
140	81, 139	mulcld 11254	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (𝐺 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴) ∈ ℂ)
141	95, 112, 83, 113, 114, 123, 128, 140	fsumsplitsn 15831	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → Σ𝑗 ∈ (𝐷 ∪ {𝐸})(𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴) = (Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴) + (𝐺 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴)))
142		difundir 4237	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐷 ∪ {𝐸}) ∖ {𝑗}) = ((𝐷 ∖ {𝑗}) ∪ ({𝐸} ∖ {𝑗}))
143	142	a1i 11	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐷) → ((𝐷 ∪ {𝐸}) ∖ {𝑗}) = ((𝐷 ∖ {𝑗}) ∪ ({𝐸} ∖ {𝑗})))
144		nfv 1947	. . . . . . . . . . . . . . . . . . . . 21 ⊢ Ⅎ𝑥 𝑗 ∈ 𝐷
145	1, 144	nfan 1932	. . . . . . . . . . . . . . . . . . . 20 ⊢ Ⅎ𝑥(𝜑 ∧ 𝑗 ∈ 𝐷)
146		elsni 4601	. . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ⊢ (𝑥 ∈ {𝐸} → 𝑥 = 𝐸)
147	146	eqcomd 2766	. . . . . . . . . . . . . . . . . . . . . . . . . . 27 ⊢ (𝑥 ∈ {𝐸} → 𝐸 = 𝑥)
148	147	adantr 486	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ ((𝑥 ∈ {𝐸} ∧ 𝑥 = 𝑗) → 𝐸 = 𝑥)
149		simpr 490	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ ((𝑥 ∈ {𝐸} ∧ 𝑥 = 𝑗) → 𝑥 = 𝑗)
150		eqidd 2761	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ ((𝑥 ∈ {𝐸} ∧ 𝑥 = 𝑗) → 𝑗 = 𝑗)
151	148, 149, 150	3eqtrd 2799	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ ((𝑥 ∈ {𝐸} ∧ 𝑥 = 𝑗) → 𝐸 = 𝑗)
152	151	adantll 727	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝜑 ∧ 𝑗 ∈ 𝐷) ∧ 𝑥 ∈ {𝐸}) ∧ 𝑥 = 𝑗) → 𝐸 = 𝑗)
153		simpllr 788	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝜑 ∧ 𝑗 ∈ 𝐷) ∧ 𝑥 ∈ {𝐸}) ∧ 𝑥 = 𝑗) → 𝑗 ∈ 𝐷)
154	152, 153	eqeltrd 2860	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝜑 ∧ 𝑗 ∈ 𝐷) ∧ 𝑥 ∈ {𝐸}) ∧ 𝑥 = 𝑗) → 𝐸 ∈ 𝐷)
155	33	ad3antrrr 743	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝜑 ∧ 𝑗 ∈ 𝐷) ∧ 𝑥 ∈ {𝐸}) ∧ 𝑥 = 𝑗) → ¬ 𝐸 ∈ 𝐷)
156	154, 155	pm2.65da 829	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((𝜑 ∧ 𝑗 ∈ 𝐷) ∧ 𝑥 ∈ {𝐸}) → ¬ 𝑥 = 𝑗)
157		velsn 4600	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝑥 ∈ {𝑗} ↔ 𝑥 = 𝑗)
158	156, 157	sylnibr 332	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝜑 ∧ 𝑗 ∈ 𝐷) ∧ 𝑥 ∈ {𝐸}) → ¬ 𝑥 ∈ {𝑗})
159	158	ex 418	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐷) → (𝑥 ∈ {𝐸} → ¬ 𝑥 ∈ {𝑗}))
160	145, 159	ralrimi 3260	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐷) → ∀𝑥 ∈ {𝐸} ¬ 𝑥 ∈ {𝑗})
161		disj 4403	. . . . . . . . . . . . . . . . . . 19 ⊢ (({𝐸} ∩ {𝑗}) = ∅ ↔ ∀𝑥 ∈ {𝐸} ¬ 𝑥 ∈ {𝑗})
162	160, 161	sylibr 237	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐷) → ({𝐸} ∩ {𝑗}) = ∅)
163		disjdif2 4436	. . . . . . . . . . . . . . . . . 18 ⊢ (({𝐸} ∩ {𝑗}) = ∅ → ({𝐸} ∖ {𝑗}) = {𝐸})
164	162, 163	syl 18	. . . . . . . . . . . . . . . . 17 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐷) → ({𝐸} ∖ {𝑗}) = {𝐸})
165	164	uneq2d 4115	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐷) → ((𝐷 ∖ {𝑗}) ∪ ({𝐸} ∖ {𝑗})) = ((𝐷 ∖ {𝑗}) ∪ {𝐸}))
166	143, 165	eqtrd 2795	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐷) → ((𝐷 ∪ {𝐸}) ∖ {𝑗}) = ((𝐷 ∖ {𝑗}) ∪ {𝐸}))
167	166	prodeq1d 16009	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐷) → ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴 = ∏𝑖 ∈ ((𝐷 ∖ {𝑗}) ∪ {𝐸})𝐴)
168	167	adantlr 728	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴 = ∏𝑖 ∈ ((𝐷 ∖ {𝑗}) ∪ {𝐸})𝐴)
169		nfv 1947	. . . . . . . . . . . . . . 15 ⊢ Ⅎ𝑖 𝑗 ∈ 𝐷
170	6, 169	nfan 1932	. . . . . . . . . . . . . 14 ⊢ Ⅎ𝑖((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷)
171	99	adantr 486	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → (𝐷 ∖ {𝑗}) ∈ Fin)
172	51	adantr 486	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → 𝜑)
173	172, 22	syl 18	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → 𝐸 ∈ V)
174		id 23	. . . . . . . . . . . . . . . . . 18 ⊢ (¬ 𝐸 ∈ 𝐷 → ¬ 𝐸 ∈ 𝐷)
175	174	intnanrd 495	. . . . . . . . . . . . . . . . . 18 ⊢ (¬ 𝐸 ∈ 𝐷 → ¬ (𝐸 ∈ 𝐷 ∧ ¬ 𝐸 ∈ {𝑗}))
176	174, 175	syl 18	. . . . . . . . . . . . . . . . 17 ⊢ (¬ 𝐸 ∈ 𝐷 → ¬ (𝐸 ∈ 𝐷 ∧ ¬ 𝐸 ∈ {𝑗}))
177		eldif 3909	. . . . . . . . . . . . . . . . 17 ⊢ (𝐸 ∈ (𝐷 ∖ {𝑗}) ↔ (𝐸 ∈ 𝐷 ∧ ¬ 𝐸 ∈ {𝑗}))
178	176, 177	sylnibr 332	. . . . . . . . . . . . . . . 16 ⊢ (¬ 𝐸 ∈ 𝐷 → ¬ 𝐸 ∈ (𝐷 ∖ {𝑗}))
179	33, 178	syl 18	. . . . . . . . . . . . . . 15 ⊢ (𝜑 → ¬ 𝐸 ∈ (𝐷 ∖ {𝑗}))
180	172, 179	syl 18	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → ¬ 𝐸 ∈ (𝐷 ∖ {𝑗}))
181	102	adantlr 728	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) ∧ 𝑖 ∈ (𝐷 ∖ {𝑗})) → 𝐴 ∈ ℂ)
182	80	adantr 486	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → 𝐹 ∈ ℂ)
183	170, 7, 171, 173, 180, 181, 28, 182	fprodsplitsn 16077	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → ∏𝑖 ∈ ((𝐷 ∖ {𝑗}) ∪ {𝐸})𝐴 = (∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴 · 𝐹))
184		eqidd 2761	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → (∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴 · 𝐹) = (∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴 · 𝐹))
185	168, 183, 184	3eqtrd 2799	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴 = (∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴 · 𝐹))
186	185	oveq2d 7430	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → (𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴) = (𝐶 · (∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴 · 𝐹)))
187	96, 104, 182	mulassd 11257	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → ((𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹) = (𝐶 · (∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴 · 𝐹)))
188	187	eqcomd 2766	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → (𝐶 · (∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴 · 𝐹)) = ((𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹))
189	186, 188	eqtrd 2795	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → (𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴) = ((𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹))
190	189	ex 418	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (𝑗 ∈ 𝐷 → (𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴) = ((𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹)))
191	95, 190	ralrimi 3260	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ∀𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴) = ((𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹))
192	191	sumeq2d 15789	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴) = Σ𝑗 ∈ 𝐷 ((𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹))
193	95, 83, 80, 105	fsummulc1f 46402	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹) = Σ𝑗 ∈ 𝐷 ((𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹))
194	193	eqcomd 2766	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → Σ𝑗 ∈ 𝐷 ((𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹) = (Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹))
195		eqidd 2761	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹) = (Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹))
196	192, 194, 195	3eqtrd 2799	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴) = (Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹))
197	106, 80	mulcld 11254	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹) ∈ ℂ)
198	196, 197	eqeltrd 2860	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴) ∈ ℂ)
199	198, 140	addcomd 11437	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴) + (𝐺 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴)) = ((𝐺 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴) + Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴)))
200	42	oveq2d 7430	. . . . . 6 ⊢ (𝜑 → (𝐺 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴) = (𝐺 · ∏𝑖 ∈ 𝐷 𝐴))
201	200	adantr 486	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (𝐺 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴) = (𝐺 · ∏𝑖 ∈ 𝐷 𝐴))
202	201, 196	oveq12d 7432	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ((𝐺 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴) + Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴)) = ((𝐺 · ∏𝑖 ∈ 𝐷 𝐴) + (Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹)))
203	141, 199, 202	3eqtrrd 2800	. . 3 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ((𝐺 · ∏𝑖 ∈ 𝐷 𝐴) + (Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹)) = Σ𝑗 ∈ (𝐷 ∪ {𝐸})(𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴))
204	1, 203	mpteq2da 5197	. 2 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ ((𝐺 · ∏𝑖 ∈ 𝐷 𝐴) + (Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹))) = (𝑥 ∈ 𝑋 ↦ Σ𝑗 ∈ (𝐷 ∪ {𝐸})(𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴)))
205	47, 108, 204	3eqtrd 2799	1 ⊢ (𝜑 → (𝑆 D (𝑥 ∈ 𝑋 ↦ ∏𝑖 ∈ (𝐷 ∪ {𝐸})𝐴)) = (𝑥 ∈ 𝑋 ↦ Σ𝑗 ∈ (𝐷 ∪ {𝐸})(𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴)))

Colors of variables: wff setvar class

This proof depends on syntax axioms: ¬ wn 3 → wi 4 ∧ wa 401 ∧ w3a 1103 = wceq 1570 Ⅎwnf 1816 ∈ wcel 2145 Ⅎwnfc 2907 ∀wral 3076 Vcvv 3450 ∖ cdif 3896 ∪ cun 3897 ∩ cin 3898 ⊆ wss 3899 ∅c0 4279 {csn 4584 {cpr 4586 ↦ cmpt 5186 (class class class)co 7414 Fincfn 8953 ℂcc 11123 ℝcr 11124 + caddc 11128 · cmul 11130 Σcsu 15774 ∏cprod 15993 D cdv 26091

This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-rep 5232 ax-sep 5251 ax-nul 5263 ax-pow 5330 ax-pr 5398 ax-un 7737 ax-inf2 9621 ax-cnex 11181 ax-resscn 11182 ax-1cn 11183 ax-icn 11184 ax-addcl 11185 ax-addrcl 11186 ax-mulcl 11187 ax-mulrcl 11188 ax-mulcom 11189 ax-addass 11190 ax-mulass 11191 ax-distr 11192 ax-i2m1 11193 ax-1ne0 11194 ax-1rid 11195 ax-rnegex 11196 ax-rrecex 11197 ax-cnre 11198 ax-pre-lttri 11199 ax-pre-lttrn 11200 ax-pre-ltadd 11201 ax-pre-mulgt0 11202 ax-pre-sup 11203 ax-addf 11204

This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-tp 4589 df-op 4591 df-uni 4868 df-int 4908 df-iun 4953 df-iin 4954 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-se 5609 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-pred 6299 df-ord 6360 df-on 6361 df-lim 6362 df-suc 6363 df-iota 6489 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-isom 6542 df-riota 7371 df-ov 7417 df-oprab 7418 df-mpo 7419 df-of 7679 df-om 7864 df-1st 7987 df-2nd 7988 df-supp 8160 df-frecs 8281 df-wrecs 8312 df-recs 8361 df-rdg 8400 df-1o 8456 df-2o 8457 df-er 8697 df-map 8829 df-pm 8830 df-ixp 8906 df-en 8954 df-dom 8955 df-sdom 8956 df-fin 8957 df-fsupp 9333 df-fi 9382 df-sup 9413 df-inf 9414 df-oi 9483 df-card 9945 df-pnf 11270 df-mnf 11271 df-xr 11272 df-ltxr 11273 df-le 11274 df-sub 11468 df-neg 11469 df-div 11897 df-nn 12259 df-2 12328 df-3 12329 df-4 12330 df-5 12331 df-6 12332 df-7 12333 df-8 12334 df-9 12335 df-n0 12530 df-z 12617 df-dec 12738 df-uz 12889 df-q 12999 df-rp 13044 df-xneg 13164 df-xadd 13165 df-xmul 13166 df-icc 13406 df-fz 13563 df-fzo 13711 df-seq 14067 df-exp 14127 df-hash 14396 df-cj 15187 df-re 15188 df-im 15189 df-sqrt 15323 df-abs 15324 df-clim 15576 df-sum 15775 df-prod 15994 df-struct 17240 df-sets 17257 df-slot 17275 df-ndx 17287 df-base 17303 df-ress 17324 df-plusg 17356 df-mulr 17357 df-starv 17358 df-sca 17359 df-vsca 17360 df-ip 17361 df-tset 17362 df-ple 17363 df-ds 17365 df-unif 17366 df-hom 17367 df-cco 17368 df-rest 17508 df-topn 17509 df-0g 17527 df-gsum 17528 df-topgen 17529 df-pt 17530 df-prds 17533 df-xrs 17589 df-qtop 17594 df-imas 17595 df-xps 17597 df-mre 17671 df-mrc 17672 df-acs 17674 df-mgm 18731 df-sgrp 18822 df-mnd 18838 df-submnd 18893 df-mulg 19192 df-cntz 19445 df-cmn 19910 df-psmet 21578 df-xmet 21579 df-met 21580 df-bl 21581 df-mopn 21582 df-fbas 21583 df-fg 21584 df-cnfld 21587 df-top 23120 df-topon 23137 df-topsp 23159 df-bases 23172 df-cld 23245 df-ntr 23246 df-cls 23247 df-nei 23324 df-lp 23362 df-perf 23363 df-cn 23453 df-cnp 23454 df-haus 23541 df-tx 23789 df-hmeo 23982 df-fil 24073 df-fm 24165 df-flim 24166 df-flf 24167 df-xms 24547 df-ms 24548 df-tms 24549 df-cncf 25107 df-limc 26094 df-dv 26095

This theorem is used by: dvmptfprod 46774

W3C validator