dvmptfprodlem - Mathbox for Glauco Siliprandi

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Theorem dvmptfprodlem 44646

Description: Induction step for dvmptfprod 44647. (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 2903	. . . . . . . 8 ⊢ Ⅎ𝑖𝑥
4		nfcv 2903	. . . . . . . 8 ⊢ Ⅎ𝑖𝑋
5	3, 4	nfel 2917	. . . . . . 7 ⊢ Ⅎ𝑖 𝑥 ∈ 𝑋
6	2, 5	nfan 1902	. . . . . 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 9040	. . . . . . . . 9 ⊢ {𝐸} ∈ Fin
11	10	a1i 11	. . . . . . . 8 ⊢ (𝜑 → {𝐸} ∈ Fin)
12		unfi 9168	. . . . . . . 8 ⊢ ((𝐷 ∈ Fin ∧ {𝐸} ∈ Fin) → (𝐷 ∪ {𝐸}) ∈ Fin)
13	9, 11, 12	syl2anc 584	. . . . . . 7 ⊢ (𝜑 → (𝐷 ∪ {𝐸}) ∈ Fin)
14	13	adantr 481	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (𝐷 ∪ {𝐸}) ∈ Fin)
15		simpll 765	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ (𝐷 ∪ {𝐸})) → 𝜑)
16		dvmptfprodlem.ss	. . . . . . . . 9 ⊢ (𝜑 → (𝐷 ∪ {𝐸}) ⊆ 𝐼)
17	16	sselda 3981	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑖 ∈ (𝐷 ∪ {𝐸})) → 𝑖 ∈ 𝐼)
18	17	adantlr 713	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ (𝐷 ∪ {𝐸})) → 𝑖 ∈ 𝐼)
19		simplr 767	. . . . . . 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 1371	. . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ (𝐷 ∪ {𝐸})) → 𝐴 ∈ ℂ)
22		dvmptfprodlem.e	. . . . . . . . 9 ⊢ (𝜑 → 𝐸 ∈ V)
23		snidg 4661	. . . . . . . . 9 ⊢ (𝐸 ∈ V → 𝐸 ∈ {𝐸})
24	22, 23	syl 17	. . . . . . . 8 ⊢ (𝜑 → 𝐸 ∈ {𝐸})
25		elun2 4176	. . . . . . . 8 ⊢ (𝐸 ∈ {𝐸} → 𝐸 ∈ (𝐷 ∪ {𝐸}))
26	24, 25	syl 17	. . . . . . 7 ⊢ (𝜑 → 𝐸 ∈ (𝐷 ∪ {𝐸}))
27	26	adantr 481	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → 𝐸 ∈ (𝐷 ∪ {𝐸}))
28		dvmptfprodlem.f	. . . . . . 7 ⊢ (𝑖 = 𝐸 → 𝐴 = 𝐹)
29	28	adantl 482	. . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 = 𝐸) → 𝐴 = 𝐹)
30	6, 8, 14, 21, 27, 29	fprodsplit1f 15930	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ∏𝑖 ∈ (𝐷 ∪ {𝐸})𝐴 = (𝐹 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴))
31		difundir 4279	. . . . . . . . . 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 4800	. . . . . . . . . . 11 ⊢ (¬ 𝐸 ∈ 𝐷 → (𝐷 ∖ {𝐸}) = 𝐷)
35	33, 34	syl 17	. . . . . . . . . 10 ⊢ (𝜑 → (𝐷 ∖ {𝐸}) = 𝐷)
36		difid 4369	. . . . . . . . . . 11 ⊢ ({𝐸} ∖ {𝐸}) = ∅
37	36	a1i 11	. . . . . . . . . 10 ⊢ (𝜑 → ({𝐸} ∖ {𝐸}) = ∅)
38	35, 37	uneq12d 4163	. . . . . . . . 9 ⊢ (𝜑 → ((𝐷 ∖ {𝐸}) ∪ ({𝐸} ∖ {𝐸})) = (𝐷 ∪ ∅))
39		un0 4389	. . . . . . . . . 10 ⊢ (𝐷 ∪ ∅) = 𝐷
40	39	a1i 11	. . . . . . . . 9 ⊢ (𝜑 → (𝐷 ∪ ∅) = 𝐷)
41	32, 38, 40	3eqtrd 2776	. . . . . . . 8 ⊢ (𝜑 → ((𝐷 ∪ {𝐸}) ∖ {𝐸}) = 𝐷)
42	41	prodeq1d 15861	. . . . . . 7 ⊢ (𝜑 → ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴 = ∏𝑖 ∈ 𝐷 𝐴)
43	42	oveq2d 7421	. . . . . 6 ⊢ (𝜑 → (𝐹 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴) = (𝐹 · ∏𝑖 ∈ 𝐷 𝐴))
44	43	adantr 481	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (𝐹 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴) = (𝐹 · ∏𝑖 ∈ 𝐷 𝐴))
45	30, 44	eqtrd 2772	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ∏𝑖 ∈ (𝐷 ∪ {𝐸})𝐴 = (𝐹 · ∏𝑖 ∈ 𝐷 𝐴))
46	1, 45	mpteq2da 5245	. . 3 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ ∏𝑖 ∈ (𝐷 ∪ {𝐸})𝐴) = (𝑥 ∈ 𝑋 ↦ (𝐹 · ∏𝑖 ∈ 𝐷 𝐴)))
47	46	oveq2d 7421	. 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 3982	. . . . 5 ⊢ (𝜑 → 𝐸 ∈ 𝐼)
50	49	adantr 481	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → 𝐸 ∈ 𝐼)
51		simpl 483	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → 𝜑)
52		simpr 485	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → 𝑥 ∈ 𝑋)
53	51, 50, 52	3jca 1128	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋))
54		nfcv 2903	. . . . 5 ⊢ Ⅎ𝑖𝐸
55		nfv 1917	. . . . . . 7 ⊢ Ⅎ𝑖 𝐸 ∈ 𝐼
56	2, 55, 5	nf3an 1904	. . . . . 6 ⊢ Ⅎ𝑖(𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋)
57		nfcv 2903	. . . . . . 7 ⊢ Ⅎ𝑖ℂ
58	7, 57	nfel 2917	. . . . . 6 ⊢ Ⅎ𝑖 𝐹 ∈ ℂ
59	56, 58	nfim 1899	. . . . 5 ⊢ Ⅎ𝑖((𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐹 ∈ ℂ)
60		ancom 461	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 = 𝐸) ↔ (𝑖 = 𝐸 ∧ (𝜑 ∧ 𝑥 ∈ 𝑋)))
61	60	imbi1i 349	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 = 𝐸) → 𝐴 = 𝐹) ↔ ((𝑖 = 𝐸 ∧ (𝜑 ∧ 𝑥 ∈ 𝑋)) → 𝐴 = 𝐹))
62		eqcom 2739	. . . . . . . . . . . . 13 ⊢ (𝐴 = 𝐹 ↔ 𝐹 = 𝐴)
63	62	imbi2i 335	. . . . . . . . . . . 12 ⊢ (((𝑖 = 𝐸 ∧ (𝜑 ∧ 𝑥 ∈ 𝑋)) → 𝐴 = 𝐹) ↔ ((𝑖 = 𝐸 ∧ (𝜑 ∧ 𝑥 ∈ 𝑋)) → 𝐹 = 𝐴))
64	61, 63	bitri 274	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 = 𝐸) → 𝐴 = 𝐹) ↔ ((𝑖 = 𝐸 ∧ (𝜑 ∧ 𝑥 ∈ 𝑋)) → 𝐹 = 𝐴))
65	29, 64	mpbi 229	. . . . . . . . . 10 ⊢ ((𝑖 = 𝐸 ∧ (𝜑 ∧ 𝑥 ∈ 𝑋)) → 𝐹 = 𝐴)
66	65	3adantr2 1170	. . . . . . . . 9 ⊢ ((𝑖 = 𝐸 ∧ (𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋)) → 𝐹 = 𝐴)
67	66	3adant2 1131	. . . . . . . 8 ⊢ ((𝑖 = 𝐸 ∧ ((𝜑 ∧ 𝑖 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ) ∧ (𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋)) → 𝐹 = 𝐴)
68		simp3 1138	. . . . . . . . 9 ⊢ ((𝑖 = 𝐸 ∧ ((𝜑 ∧ 𝑖 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ) ∧ (𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋)) → (𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋))
69		eleq1 2821	. . . . . . . . . . . . 13 ⊢ (𝑖 = 𝐸 → (𝑖 ∈ 𝐼 ↔ 𝐸 ∈ 𝐼))
70	69	3anbi2d 1441	. . . . . . . . . . . 12 ⊢ (𝑖 = 𝐸 → ((𝜑 ∧ 𝑖 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) ↔ (𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋)))
71	70	imbi1d 341	. . . . . . . . . . 11 ⊢ (𝑖 = 𝐸 → (((𝜑 ∧ 𝑖 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ) ↔ ((𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ)))
72	71	biimpa 477	. . . . . . . . . 10 ⊢ ((𝑖 = 𝐸 ∧ ((𝜑 ∧ 𝑖 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ)) → ((𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ))
73	72	3adant3 1132	. . . . . . . . 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 15	. . . . . . . 8 ⊢ ((𝑖 = 𝐸 ∧ ((𝜑 ∧ 𝑖 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ) ∧ (𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋)) → 𝐴 ∈ ℂ)
75	67, 74	eqeltrd 2833	. . . . . . 7 ⊢ ((𝑖 = 𝐸 ∧ ((𝜑 ∧ 𝑖 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ) ∧ (𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋)) → 𝐹 ∈ ℂ)
76	75	3exp 1119	. . . . . 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 211	. . . . 5 ⊢ (𝑖 = 𝐸 → (((𝜑 ∧ 𝑖 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ) ↔ ((𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐹 ∈ ℂ)))
79	54, 59, 78, 20	vtoclgf 3554	. . . 4 ⊢ (𝐸 ∈ 𝐼 → ((𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐹 ∈ ℂ))
80	50, 53, 79	sylc 65	. . 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 17	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → 𝐷 ∈ Fin)
84	51	adantr 481	. . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ 𝐷) → 𝜑)
85	16	adantr 481	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝐷) → (𝐷 ∪ {𝐸}) ⊆ 𝐼)
86		elun1 4175	. . . . . . . 8 ⊢ (𝑖 ∈ 𝐷 → 𝑖 ∈ (𝐷 ∪ {𝐸}))
87	86	adantl 482	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝐷) → 𝑖 ∈ (𝐷 ∪ {𝐸}))
88	85, 87	sseldd 3982	. . . . . 6 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝐷) → 𝑖 ∈ 𝐼)
89	88	adantlr 713	. . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ 𝐷) → 𝑖 ∈ 𝐼)
90	52	adantr 481	. . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ 𝐷) → 𝑥 ∈ 𝑋)
91	84, 89, 90, 20	syl3anc 1371	. . . 4 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ 𝐷) → 𝐴 ∈ ℂ)
92	6, 83, 91	fprodclf 15932	. . 3 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ∏𝑖 ∈ 𝐷 𝐴 ∈ ℂ)
93		dvmptfprodlem.jph	. . . . 5 ⊢ Ⅎ𝑗𝜑
94		nfv 1917	. . . . 5 ⊢ Ⅎ𝑗 𝑥 ∈ 𝑋
95	93, 94	nfan 1902	. . . 4 ⊢ Ⅎ𝑗(𝜑 ∧ 𝑥 ∈ 𝑋)
96		dvmptfprodlem.c	. . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → 𝐶 ∈ ℂ)
97		diffi 9175	. . . . . . . . 9 ⊢ (𝐷 ∈ Fin → (𝐷 ∖ {𝑗}) ∈ Fin)
98	9, 97	syl 17	. . . . . . . 8 ⊢ (𝜑 → (𝐷 ∖ {𝑗}) ∈ Fin)
99	98	adantr 481	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (𝐷 ∖ {𝑗}) ∈ Fin)
100		eldifi 4125	. . . . . . . . 9 ⊢ (𝑖 ∈ (𝐷 ∖ {𝑗}) → 𝑖 ∈ 𝐷)
101	100	adantl 482	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ (𝐷 ∖ {𝑗})) → 𝑖 ∈ 𝐷)
102	101, 91	syldan 591	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ (𝐷 ∖ {𝑗})) → 𝐴 ∈ ℂ)
103	6, 99, 102	fprodclf 15932	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴 ∈ ℂ)
104	103	adantr 481	. . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴 ∈ ℂ)
105	96, 104	mulcld 11230	. . . 4 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → (𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) ∈ ℂ)
106	95, 83, 105	fsumclf 15680	. . 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 44639	. 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 2903	. . . . . 6 ⊢ Ⅎ𝑗 ·
111		nfcv 2903	. . . . . 6 ⊢ Ⅎ𝑗∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴
112	109, 110, 111	nfov 7435	. . . . 5 ⊢ Ⅎ𝑗(𝐺 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴)
113	51, 22	syl 17	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → 𝐸 ∈ V)
114	51, 33	syl 17	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ¬ 𝐸 ∈ 𝐷)
115		diffi 9175	. . . . . . . . . 10 ⊢ ((𝐷 ∪ {𝐸}) ∈ Fin → ((𝐷 ∪ {𝐸}) ∖ {𝑗}) ∈ Fin)
116	13, 115	syl 17	. . . . . . . . 9 ⊢ (𝜑 → ((𝐷 ∪ {𝐸}) ∖ {𝑗}) ∈ Fin)
117	116	adantr 481	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ((𝐷 ∪ {𝐸}) ∖ {𝑗}) ∈ Fin)
118		eldifi 4125	. . . . . . . . . 10 ⊢ (𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗}) → 𝑖 ∈ (𝐷 ∪ {𝐸}))
119	118	adantl 482	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})) → 𝑖 ∈ (𝐷 ∪ {𝐸}))
120	119, 21	syldan 591	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})) → 𝐴 ∈ ℂ)
121	6, 117, 120	fprodclf 15932	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴 ∈ ℂ)
122	121	adantr 481	. . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴 ∈ ℂ)
123	96, 122	mulcld 11230	. . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → (𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴) ∈ ℂ)
124		dvmptfprodlem.cg	. . . . . 6 ⊢ (𝑗 = 𝐸 → 𝐶 = 𝐺)
125		sneq 4637	. . . . . . . 8 ⊢ (𝑗 = 𝐸 → {𝑗} = {𝐸})
126	125	difeq2d 4121	. . . . . . 7 ⊢ (𝑗 = 𝐸 → ((𝐷 ∪ {𝐸}) ∖ {𝑗}) = ((𝐷 ∪ {𝐸}) ∖ {𝐸}))
127	126	prodeq1d 15861	. . . . . 6 ⊢ (𝑗 = 𝐸 → ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴 = ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴)
128	124, 127	oveq12d 7423	. . . . 5 ⊢ (𝑗 = 𝐸 → (𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴) = (𝐺 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴))
129	41, 9	eqeltrd 2833	. . . . . . . 8 ⊢ (𝜑 → ((𝐷 ∪ {𝐸}) ∖ {𝐸}) ∈ Fin)
130	129	adantr 481	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ((𝐷 ∪ {𝐸}) ∖ {𝐸}) ∈ Fin)
131	51	adantr 481	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})) → 𝜑)
132	16	adantr 481	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})) → (𝐷 ∪ {𝐸}) ⊆ 𝐼)
133		eldifi 4125	. . . . . . . . . . 11 ⊢ (𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸}) → 𝑖 ∈ (𝐷 ∪ {𝐸}))
134	133	adantl 482	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})) → 𝑖 ∈ (𝐷 ∪ {𝐸}))
135	132, 134	sseldd 3982	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})) → 𝑖 ∈ 𝐼)
136	135	adantlr 713	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})) → 𝑖 ∈ 𝐼)
137	52	adantr 481	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})) → 𝑥 ∈ 𝑋)
138	131, 136, 137, 20	syl3anc 1371	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})) → 𝐴 ∈ ℂ)
139	6, 130, 138	fprodclf 15932	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴 ∈ ℂ)
140	81, 139	mulcld 11230	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (𝐺 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴) ∈ ℂ)
141	95, 112, 83, 113, 114, 123, 128, 140	fsumsplitsn 15686	. . . 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 4279	. . . . . . . . . . . . . . . . 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 1917	. . . . . . . . . . . . . . . . . . . . 21 ⊢ Ⅎ𝑥 𝑗 ∈ 𝐷
145	1, 144	nfan 1902	. . . . . . . . . . . . . . . . . . . 20 ⊢ Ⅎ𝑥(𝜑 ∧ 𝑗 ∈ 𝐷)
146		elsni 4644	. . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ⊢ (𝑥 ∈ {𝐸} → 𝑥 = 𝐸)
147	146	eqcomd 2738	. . . . . . . . . . . . . . . . . . . . . . . . . . 27 ⊢ (𝑥 ∈ {𝐸} → 𝐸 = 𝑥)
148	147	adantr 481	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ ((𝑥 ∈ {𝐸} ∧ 𝑥 = 𝑗) → 𝐸 = 𝑥)
149		simpr 485	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ ((𝑥 ∈ {𝐸} ∧ 𝑥 = 𝑗) → 𝑥 = 𝑗)
150		eqidd 2733	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ ((𝑥 ∈ {𝐸} ∧ 𝑥 = 𝑗) → 𝑗 = 𝑗)
151	148, 149, 150	3eqtrd 2776	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ ((𝑥 ∈ {𝐸} ∧ 𝑥 = 𝑗) → 𝐸 = 𝑗)
152	151	adantll 712	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝜑 ∧ 𝑗 ∈ 𝐷) ∧ 𝑥 ∈ {𝐸}) ∧ 𝑥 = 𝑗) → 𝐸 = 𝑗)
153		simpllr 774	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝜑 ∧ 𝑗 ∈ 𝐷) ∧ 𝑥 ∈ {𝐸}) ∧ 𝑥 = 𝑗) → 𝑗 ∈ 𝐷)
154	152, 153	eqeltrd 2833	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝜑 ∧ 𝑗 ∈ 𝐷) ∧ 𝑥 ∈ {𝐸}) ∧ 𝑥 = 𝑗) → 𝐸 ∈ 𝐷)
155	33	ad3antrrr 728	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝜑 ∧ 𝑗 ∈ 𝐷) ∧ 𝑥 ∈ {𝐸}) ∧ 𝑥 = 𝑗) → ¬ 𝐸 ∈ 𝐷)
156	154, 155	pm2.65da 815	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((𝜑 ∧ 𝑗 ∈ 𝐷) ∧ 𝑥 ∈ {𝐸}) → ¬ 𝑥 = 𝑗)
157		velsn 4643	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝑥 ∈ {𝑗} ↔ 𝑥 = 𝑗)
158	156, 157	sylnibr 328	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝜑 ∧ 𝑗 ∈ 𝐷) ∧ 𝑥 ∈ {𝐸}) → ¬ 𝑥 ∈ {𝑗})
159	158	ex 413	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐷) → (𝑥 ∈ {𝐸} → ¬ 𝑥 ∈ {𝑗}))
160	145, 159	ralrimi 3254	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐷) → ∀𝑥 ∈ {𝐸} ¬ 𝑥 ∈ {𝑗})
161		disj 4446	. . . . . . . . . . . . . . . . . . 19 ⊢ (({𝐸} ∩ {𝑗}) = ∅ ↔ ∀𝑥 ∈ {𝐸} ¬ 𝑥 ∈ {𝑗})
162	160, 161	sylibr 233	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐷) → ({𝐸} ∩ {𝑗}) = ∅)
163		disjdif2 4478	. . . . . . . . . . . . . . . . . 18 ⊢ (({𝐸} ∩ {𝑗}) = ∅ → ({𝐸} ∖ {𝑗}) = {𝐸})
164	162, 163	syl 17	. . . . . . . . . . . . . . . . 17 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐷) → ({𝐸} ∖ {𝑗}) = {𝐸})
165	164	uneq2d 4162	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐷) → ((𝐷 ∖ {𝑗}) ∪ ({𝐸} ∖ {𝑗})) = ((𝐷 ∖ {𝑗}) ∪ {𝐸}))
166	143, 165	eqtrd 2772	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐷) → ((𝐷 ∪ {𝐸}) ∖ {𝑗}) = ((𝐷 ∖ {𝑗}) ∪ {𝐸}))
167	166	prodeq1d 15861	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐷) → ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴 = ∏𝑖 ∈ ((𝐷 ∖ {𝑗}) ∪ {𝐸})𝐴)
168	167	adantlr 713	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴 = ∏𝑖 ∈ ((𝐷 ∖ {𝑗}) ∪ {𝐸})𝐴)
169		nfv 1917	. . . . . . . . . . . . . . 15 ⊢ Ⅎ𝑖 𝑗 ∈ 𝐷
170	6, 169	nfan 1902	. . . . . . . . . . . . . 14 ⊢ Ⅎ𝑖((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷)
171	99	adantr 481	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → (𝐷 ∖ {𝑗}) ∈ Fin)
172	51	adantr 481	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → 𝜑)
173	172, 22	syl 17	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → 𝐸 ∈ V)
174		id 22	. . . . . . . . . . . . . . . . . 18 ⊢ (¬ 𝐸 ∈ 𝐷 → ¬ 𝐸 ∈ 𝐷)
175	174	intnanrd 490	. . . . . . . . . . . . . . . . . 18 ⊢ (¬ 𝐸 ∈ 𝐷 → ¬ (𝐸 ∈ 𝐷 ∧ ¬ 𝐸 ∈ {𝑗}))
176	174, 175	syl 17	. . . . . . . . . . . . . . . . 17 ⊢ (¬ 𝐸 ∈ 𝐷 → ¬ (𝐸 ∈ 𝐷 ∧ ¬ 𝐸 ∈ {𝑗}))
177		eldif 3957	. . . . . . . . . . . . . . . . 17 ⊢ (𝐸 ∈ (𝐷 ∖ {𝑗}) ↔ (𝐸 ∈ 𝐷 ∧ ¬ 𝐸 ∈ {𝑗}))
178	176, 177	sylnibr 328	. . . . . . . . . . . . . . . 16 ⊢ (¬ 𝐸 ∈ 𝐷 → ¬ 𝐸 ∈ (𝐷 ∖ {𝑗}))
179	33, 178	syl 17	. . . . . . . . . . . . . . 15 ⊢ (𝜑 → ¬ 𝐸 ∈ (𝐷 ∖ {𝑗}))
180	172, 179	syl 17	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → ¬ 𝐸 ∈ (𝐷 ∖ {𝑗}))
181	102	adantlr 713	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) ∧ 𝑖 ∈ (𝐷 ∖ {𝑗})) → 𝐴 ∈ ℂ)
182	80	adantr 481	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → 𝐹 ∈ ℂ)
183	170, 7, 171, 173, 180, 181, 28, 182	fprodsplitsn 15929	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → ∏𝑖 ∈ ((𝐷 ∖ {𝑗}) ∪ {𝐸})𝐴 = (∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴 · 𝐹))
184		eqidd 2733	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → (∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴 · 𝐹) = (∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴 · 𝐹))
185	168, 183, 184	3eqtrd 2776	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴 = (∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴 · 𝐹))
186	185	oveq2d 7421	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → (𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴) = (𝐶 · (∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴 · 𝐹)))
187	96, 104, 182	mulassd 11233	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → ((𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹) = (𝐶 · (∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴 · 𝐹)))
188	187	eqcomd 2738	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → (𝐶 · (∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴 · 𝐹)) = ((𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹))
189	186, 188	eqtrd 2772	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → (𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴) = ((𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹))
190	189	ex 413	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (𝑗 ∈ 𝐷 → (𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴) = ((𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹)))
191	95, 190	ralrimi 3254	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ∀𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴) = ((𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹))
192	191	sumeq2d 15644	. . . . . . 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 44273	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹) = Σ𝑗 ∈ 𝐷 ((𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹))
194	193	eqcomd 2738	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → Σ𝑗 ∈ 𝐷 ((𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹) = (Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹))
195		eqidd 2733	. . . . . . 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 2776	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴) = (Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹))
197	106, 80	mulcld 11230	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹) ∈ ℂ)
198	196, 197	eqeltrd 2833	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴) ∈ ℂ)
199	198, 140	addcomd 11412	. . . 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 7421	. . . . . 6 ⊢ (𝜑 → (𝐺 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴) = (𝐺 · ∏𝑖 ∈ 𝐷 𝐴))
201	200	adantr 481	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (𝐺 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴) = (𝐺 · ∏𝑖 ∈ 𝐷 𝐴))
202	201, 196	oveq12d 7423	. . . 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 2777	. . 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 5245	. 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 2776	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

Syntax hints: ¬ wn 3 → wi 4 ∧ wa 396 ∧ w3a 1087 = wceq 1541 Ⅎwnf 1785 ∈ wcel 2106 Ⅎwnfc 2883 ∀wral 3061 Vcvv 3474 ∖ cdif 3944 ∪ cun 3945 ∩ cin 3946 ⊆ wss 3947 ∅c0 4321 {csn 4627 {cpr 4629 ↦ cmpt 5230 (class class class)co 7405 Fincfn 8935 ℂcc 11104 ℝcr 11105 + caddc 11109 · cmul 11111 Σcsu 15628 ∏cprod 15845 D cdv 25371

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2703 ax-rep 5284 ax-sep 5298 ax-nul 5305 ax-pow 5362 ax-pr 5426 ax-un 7721 ax-inf2 9632 ax-cnex 11162 ax-resscn 11163 ax-1cn 11164 ax-icn 11165 ax-addcl 11166 ax-addrcl 11167 ax-mulcl 11168 ax-mulrcl 11169 ax-mulcom 11170 ax-addass 11171 ax-mulass 11172 ax-distr 11173 ax-i2m1 11174 ax-1ne0 11175 ax-1rid 11176 ax-rnegex 11177 ax-rrecex 11178 ax-cnre 11179 ax-pre-lttri 11180 ax-pre-lttrn 11181 ax-pre-ltadd 11182 ax-pre-mulgt0 11183 ax-pre-sup 11184 ax-addf 11185 ax-mulf 11186

This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2534 df-eu 2563 df-clab 2710 df-cleq 2724 df-clel 2810 df-nfc 2885 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-rmo 3376 df-reu 3377 df-rab 3433 df-v 3476 df-sbc 3777 df-csb 3893 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-pss 3966 df-nul 4322 df-if 4528 df-pw 4603 df-sn 4628 df-pr 4630 df-tp 4632 df-op 4634 df-uni 4908 df-int 4950 df-iun 4998 df-iin 4999 df-br 5148 df-opab 5210 df-mpt 5231 df-tr 5265 df-id 5573 df-eprel 5579 df-po 5587 df-so 5588 df-fr 5630 df-se 5631 df-we 5632 df-xp 5681 df-rel 5682 df-cnv 5683 df-co 5684 df-dm 5685 df-rn 5686 df-res 5687 df-ima 5688 df-pred 6297 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6492 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-isom 6549 df-riota 7361 df-ov 7408 df-oprab 7409 df-mpo 7410 df-of 7666 df-om 7852 df-1st 7971 df-2nd 7972 df-supp 8143 df-frecs 8262 df-wrecs 8293 df-recs 8367 df-rdg 8406 df-1o 8462 df-2o 8463 df-er 8699 df-map 8818 df-pm 8819 df-ixp 8888 df-en 8936 df-dom 8937 df-sdom 8938 df-fin 8939 df-fsupp 9358 df-fi 9402 df-sup 9433 df-inf 9434 df-oi 9501 df-card 9930 df-pnf 11246 df-mnf 11247 df-xr 11248 df-ltxr 11249 df-le 11250 df-sub 11442 df-neg 11443 df-div 11868 df-nn 12209 df-2 12271 df-3 12272 df-4 12273 df-5 12274 df-6 12275 df-7 12276 df-8 12277 df-9 12278 df-n0 12469 df-z 12555 df-dec 12674 df-uz 12819 df-q 12929 df-rp 12971 df-xneg 13088 df-xadd 13089 df-xmul 13090 df-icc 13327 df-fz 13481 df-fzo 13624 df-seq 13963 df-exp 14024 df-hash 14287 df-cj 15042 df-re 15043 df-im 15044 df-sqrt 15178 df-abs 15179 df-clim 15428 df-sum 15629 df-prod 15846 df-struct 17076 df-sets 17093 df-slot 17111 df-ndx 17123 df-base 17141 df-ress 17170 df-plusg 17206 df-mulr 17207 df-starv 17208 df-sca 17209 df-vsca 17210 df-ip 17211 df-tset 17212 df-ple 17213 df-ds 17215 df-unif 17216 df-hom 17217 df-cco 17218 df-rest 17364 df-topn 17365 df-0g 17383 df-gsum 17384 df-topgen 17385 df-pt 17386 df-prds 17389 df-xrs 17444 df-qtop 17449 df-imas 17450 df-xps 17452 df-mre 17526 df-mrc 17527 df-acs 17529 df-mgm 18557 df-sgrp 18606 df-mnd 18622 df-submnd 18668 df-mulg 18945 df-cntz 19175 df-cmn 19644 df-psmet 20928 df-xmet 20929 df-met 20930 df-bl 20931 df-mopn 20932 df-fbas 20933 df-fg 20934 df-cnfld 20937 df-top 22387 df-topon 22404 df-topsp 22426 df-bases 22440 df-cld 22514 df-ntr 22515 df-cls 22516 df-nei 22593 df-lp 22631 df-perf 22632 df-cn 22722 df-cnp 22723 df-haus 22810 df-tx 23057 df-hmeo 23250 df-fil 23341 df-fm 23433 df-flim 23434 df-flf 23435 df-xms 23817 df-ms 23818 df-tms 23819 df-cncf 24385 df-limc 25374 df-dv 25375

This theorem is referenced by: dvmptfprod 44647

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