dvmptfprodlem - Mathbox for Glauco Siliprandi

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Theorem dvmptfprodlem 45255

Description: Induction step for dvmptfprod 45256. (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 2898	. . . . . . . 8 ⊢ Ⅎ𝑖𝑥
4		nfcv 2898	. . . . . . . 8 ⊢ Ⅎ𝑖𝑋
5	3, 4	nfel 2912	. . . . . . 7 ⊢ Ⅎ𝑖 𝑥 ∈ 𝑋
6	2, 5	nfan 1895	. . . . . 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 9060	. . . . . . . . 9 ⊢ {𝐸} ∈ Fin
11	10	a1i 11	. . . . . . . 8 ⊢ (𝜑 → {𝐸} ∈ Fin)
12		unfi 9188	. . . . . . . 8 ⊢ ((𝐷 ∈ Fin ∧ {𝐸} ∈ Fin) → (𝐷 ∪ {𝐸}) ∈ Fin)
13	9, 11, 12	syl2anc 583	. . . . . . 7 ⊢ (𝜑 → (𝐷 ∪ {𝐸}) ∈ Fin)
14	13	adantr 480	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (𝐷 ∪ {𝐸}) ∈ Fin)
15		simpll 766	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ (𝐷 ∪ {𝐸})) → 𝜑)
16		dvmptfprodlem.ss	. . . . . . . . 9 ⊢ (𝜑 → (𝐷 ∪ {𝐸}) ⊆ 𝐼)
17	16	sselda 3978	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑖 ∈ (𝐷 ∪ {𝐸})) → 𝑖 ∈ 𝐼)
18	17	adantlr 714	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ (𝐷 ∪ {𝐸})) → 𝑖 ∈ 𝐼)
19		simplr 768	. . . . . . 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 1369	. . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ (𝐷 ∪ {𝐸})) → 𝐴 ∈ ℂ)
22		dvmptfprodlem.e	. . . . . . . . 9 ⊢ (𝜑 → 𝐸 ∈ V)
23		snidg 4658	. . . . . . . . 9 ⊢ (𝐸 ∈ V → 𝐸 ∈ {𝐸})
24	22, 23	syl 17	. . . . . . . 8 ⊢ (𝜑 → 𝐸 ∈ {𝐸})
25		elun2 4173	. . . . . . . 8 ⊢ (𝐸 ∈ {𝐸} → 𝐸 ∈ (𝐷 ∪ {𝐸}))
26	24, 25	syl 17	. . . . . . 7 ⊢ (𝜑 → 𝐸 ∈ (𝐷 ∪ {𝐸}))
27	26	adantr 480	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → 𝐸 ∈ (𝐷 ∪ {𝐸}))
28		dvmptfprodlem.f	. . . . . . 7 ⊢ (𝑖 = 𝐸 → 𝐴 = 𝐹)
29	28	adantl 481	. . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 = 𝐸) → 𝐴 = 𝐹)
30	6, 8, 14, 21, 27, 29	fprodsplit1f 15958	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ∏𝑖 ∈ (𝐷 ∪ {𝐸})𝐴 = (𝐹 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴))
31		difundir 4276	. . . . . . . . . 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 4797	. . . . . . . . . . 11 ⊢ (¬ 𝐸 ∈ 𝐷 → (𝐷 ∖ {𝐸}) = 𝐷)
35	33, 34	syl 17	. . . . . . . . . 10 ⊢ (𝜑 → (𝐷 ∖ {𝐸}) = 𝐷)
36		difid 4366	. . . . . . . . . . 11 ⊢ ({𝐸} ∖ {𝐸}) = ∅
37	36	a1i 11	. . . . . . . . . 10 ⊢ (𝜑 → ({𝐸} ∖ {𝐸}) = ∅)
38	35, 37	uneq12d 4160	. . . . . . . . 9 ⊢ (𝜑 → ((𝐷 ∖ {𝐸}) ∪ ({𝐸} ∖ {𝐸})) = (𝐷 ∪ ∅))
39		un0 4386	. . . . . . . . . 10 ⊢ (𝐷 ∪ ∅) = 𝐷
40	39	a1i 11	. . . . . . . . 9 ⊢ (𝜑 → (𝐷 ∪ ∅) = 𝐷)
41	32, 38, 40	3eqtrd 2771	. . . . . . . 8 ⊢ (𝜑 → ((𝐷 ∪ {𝐸}) ∖ {𝐸}) = 𝐷)
42	41	prodeq1d 15889	. . . . . . 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 480	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (𝐹 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴) = (𝐹 · ∏𝑖 ∈ 𝐷 𝐴))
45	30, 44	eqtrd 2767	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ∏𝑖 ∈ (𝐷 ∪ {𝐸})𝐴 = (𝐹 · ∏𝑖 ∈ 𝐷 𝐴))
46	1, 45	mpteq2da 5240	. . 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 3979	. . . . 5 ⊢ (𝜑 → 𝐸 ∈ 𝐼)
50	49	adantr 480	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → 𝐸 ∈ 𝐼)
51		simpl 482	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → 𝜑)
52		simpr 484	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → 𝑥 ∈ 𝑋)
53	51, 50, 52	3jca 1126	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋))
54		nfcv 2898	. . . . 5 ⊢ Ⅎ𝑖𝐸
55		nfv 1910	. . . . . . 7 ⊢ Ⅎ𝑖 𝐸 ∈ 𝐼
56	2, 55, 5	nf3an 1897	. . . . . 6 ⊢ Ⅎ𝑖(𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋)
57		nfcv 2898	. . . . . . 7 ⊢ Ⅎ𝑖ℂ
58	7, 57	nfel 2912	. . . . . 6 ⊢ Ⅎ𝑖 𝐹 ∈ ℂ
59	56, 58	nfim 1892	. . . . 5 ⊢ Ⅎ𝑖((𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐹 ∈ ℂ)
60		ancom 460	. . . . . . . . . . . . 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 2734	. . . . . . . . . . . . 13 ⊢ (𝐴 = 𝐹 ↔ 𝐹 = 𝐴)
63	62	imbi2i 336	. . . . . . . . . . . 12 ⊢ (((𝑖 = 𝐸 ∧ (𝜑 ∧ 𝑥 ∈ 𝑋)) → 𝐴 = 𝐹) ↔ ((𝑖 = 𝐸 ∧ (𝜑 ∧ 𝑥 ∈ 𝑋)) → 𝐹 = 𝐴))
64	61, 63	bitri 275	. . . . . . . . . . 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 1168	. . . . . . . . 9 ⊢ ((𝑖 = 𝐸 ∧ (𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋)) → 𝐹 = 𝐴)
67	66	3adant2 1129	. . . . . . . 8 ⊢ ((𝑖 = 𝐸 ∧ ((𝜑 ∧ 𝑖 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ) ∧ (𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋)) → 𝐹 = 𝐴)
68		simp3 1136	. . . . . . . . 9 ⊢ ((𝑖 = 𝐸 ∧ ((𝜑 ∧ 𝑖 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ) ∧ (𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋)) → (𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋))
69		eleq1 2816	. . . . . . . . . . . . 13 ⊢ (𝑖 = 𝐸 → (𝑖 ∈ 𝐼 ↔ 𝐸 ∈ 𝐼))
70	69	3anbi2d 1438	. . . . . . . . . . . 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 476	. . . . . . . . . 10 ⊢ ((𝑖 = 𝐸 ∧ ((𝜑 ∧ 𝑖 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ)) → ((𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ))
73	72	3adant3 1130	. . . . . . . . 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 2828	. . . . . . 7 ⊢ ((𝑖 = 𝐸 ∧ ((𝜑 ∧ 𝑖 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ) ∧ (𝜑 ∧ 𝐸 ∈ 𝐼 ∧ 𝑥 ∈ 𝑋)) → 𝐹 ∈ ℂ)
76	75	3exp 1117	. . . . . 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 3553	. . . 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 480	. . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ 𝐷) → 𝜑)
85	16	adantr 480	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝐷) → (𝐷 ∪ {𝐸}) ⊆ 𝐼)
86		elun1 4172	. . . . . . . 8 ⊢ (𝑖 ∈ 𝐷 → 𝑖 ∈ (𝐷 ∪ {𝐸}))
87	86	adantl 481	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝐷) → 𝑖 ∈ (𝐷 ∪ {𝐸}))
88	85, 87	sseldd 3979	. . . . . 6 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝐷) → 𝑖 ∈ 𝐼)
89	88	adantlr 714	. . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ 𝐷) → 𝑖 ∈ 𝐼)
90	52	adantr 480	. . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ 𝐷) → 𝑥 ∈ 𝑋)
91	84, 89, 90, 20	syl3anc 1369	. . . 4 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ 𝐷) → 𝐴 ∈ ℂ)
92	6, 83, 91	fprodclf 15960	. . 3 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ∏𝑖 ∈ 𝐷 𝐴 ∈ ℂ)
93		dvmptfprodlem.jph	. . . . 5 ⊢ Ⅎ𝑗𝜑
94		nfv 1910	. . . . 5 ⊢ Ⅎ𝑗 𝑥 ∈ 𝑋
95	93, 94	nfan 1895	. . . 4 ⊢ Ⅎ𝑗(𝜑 ∧ 𝑥 ∈ 𝑋)
96		dvmptfprodlem.c	. . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → 𝐶 ∈ ℂ)
97		diffi 9195	. . . . . . . . 9 ⊢ (𝐷 ∈ Fin → (𝐷 ∖ {𝑗}) ∈ Fin)
98	9, 97	syl 17	. . . . . . . 8 ⊢ (𝜑 → (𝐷 ∖ {𝑗}) ∈ Fin)
99	98	adantr 480	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (𝐷 ∖ {𝑗}) ∈ Fin)
100		eldifi 4122	. . . . . . . . 9 ⊢ (𝑖 ∈ (𝐷 ∖ {𝑗}) → 𝑖 ∈ 𝐷)
101	100	adantl 481	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ (𝐷 ∖ {𝑗})) → 𝑖 ∈ 𝐷)
102	101, 91	syldan 590	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ (𝐷 ∖ {𝑗})) → 𝐴 ∈ ℂ)
103	6, 99, 102	fprodclf 15960	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴 ∈ ℂ)
104	103	adantr 480	. . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴 ∈ ℂ)
105	96, 104	mulcld 11256	. . . 4 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → (𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) ∈ ℂ)
106	95, 83, 105	fsumclf 15708	. . 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 45248	. 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 2898	. . . . . 6 ⊢ Ⅎ𝑗 ·
111		nfcv 2898	. . . . . 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 17	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → 𝐸 ∈ V)
114	51, 33	syl 17	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ¬ 𝐸 ∈ 𝐷)
115		diffi 9195	. . . . . . . . . 10 ⊢ ((𝐷 ∪ {𝐸}) ∈ Fin → ((𝐷 ∪ {𝐸}) ∖ {𝑗}) ∈ Fin)
116	13, 115	syl 17	. . . . . . . . 9 ⊢ (𝜑 → ((𝐷 ∪ {𝐸}) ∖ {𝑗}) ∈ Fin)
117	116	adantr 480	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ((𝐷 ∪ {𝐸}) ∖ {𝑗}) ∈ Fin)
118		eldifi 4122	. . . . . . . . . 10 ⊢ (𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗}) → 𝑖 ∈ (𝐷 ∪ {𝐸}))
119	118	adantl 481	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})) → 𝑖 ∈ (𝐷 ∪ {𝐸}))
120	119, 21	syldan 590	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})) → 𝐴 ∈ ℂ)
121	6, 117, 120	fprodclf 15960	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴 ∈ ℂ)
122	121	adantr 480	. . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴 ∈ ℂ)
123	96, 122	mulcld 11256	. . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → (𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴) ∈ ℂ)
124		dvmptfprodlem.cg	. . . . . 6 ⊢ (𝑗 = 𝐸 → 𝐶 = 𝐺)
125		sneq 4634	. . . . . . . 8 ⊢ (𝑗 = 𝐸 → {𝑗} = {𝐸})
126	125	difeq2d 4118	. . . . . . 7 ⊢ (𝑗 = 𝐸 → ((𝐷 ∪ {𝐸}) ∖ {𝑗}) = ((𝐷 ∪ {𝐸}) ∖ {𝐸}))
127	126	prodeq1d 15889	. . . . . 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 2828	. . . . . . . 8 ⊢ (𝜑 → ((𝐷 ∪ {𝐸}) ∖ {𝐸}) ∈ Fin)
130	129	adantr 480	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ((𝐷 ∪ {𝐸}) ∖ {𝐸}) ∈ Fin)
131	51	adantr 480	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})) → 𝜑)
132	16	adantr 480	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})) → (𝐷 ∪ {𝐸}) ⊆ 𝐼)
133		eldifi 4122	. . . . . . . . . . 11 ⊢ (𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸}) → 𝑖 ∈ (𝐷 ∪ {𝐸}))
134	133	adantl 481	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})) → 𝑖 ∈ (𝐷 ∪ {𝐸}))
135	132, 134	sseldd 3979	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})) → 𝑖 ∈ 𝐼)
136	135	adantlr 714	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})) → 𝑖 ∈ 𝐼)
137	52	adantr 480	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})) → 𝑥 ∈ 𝑋)
138	131, 136, 137, 20	syl3anc 1369	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})) → 𝐴 ∈ ℂ)
139	6, 130, 138	fprodclf 15960	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴 ∈ ℂ)
140	81, 139	mulcld 11256	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (𝐺 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝐸})𝐴) ∈ ℂ)
141	95, 112, 83, 113, 114, 123, 128, 140	fsumsplitsn 15714	. . . 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 4276	. . . . . . . . . . . . . . . . 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 1910	. . . . . . . . . . . . . . . . . . . . 21 ⊢ Ⅎ𝑥 𝑗 ∈ 𝐷
145	1, 144	nfan 1895	. . . . . . . . . . . . . . . . . . . 20 ⊢ Ⅎ𝑥(𝜑 ∧ 𝑗 ∈ 𝐷)
146		elsni 4641	. . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ⊢ (𝑥 ∈ {𝐸} → 𝑥 = 𝐸)
147	146	eqcomd 2733	. . . . . . . . . . . . . . . . . . . . . . . . . . 27 ⊢ (𝑥 ∈ {𝐸} → 𝐸 = 𝑥)
148	147	adantr 480	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ ((𝑥 ∈ {𝐸} ∧ 𝑥 = 𝑗) → 𝐸 = 𝑥)
149		simpr 484	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ ((𝑥 ∈ {𝐸} ∧ 𝑥 = 𝑗) → 𝑥 = 𝑗)
150		eqidd 2728	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ ((𝑥 ∈ {𝐸} ∧ 𝑥 = 𝑗) → 𝑗 = 𝑗)
151	148, 149, 150	3eqtrd 2771	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ ((𝑥 ∈ {𝐸} ∧ 𝑥 = 𝑗) → 𝐸 = 𝑗)
152	151	adantll 713	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝜑 ∧ 𝑗 ∈ 𝐷) ∧ 𝑥 ∈ {𝐸}) ∧ 𝑥 = 𝑗) → 𝐸 = 𝑗)
153		simpllr 775	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝜑 ∧ 𝑗 ∈ 𝐷) ∧ 𝑥 ∈ {𝐸}) ∧ 𝑥 = 𝑗) → 𝑗 ∈ 𝐷)
154	152, 153	eqeltrd 2828	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝜑 ∧ 𝑗 ∈ 𝐷) ∧ 𝑥 ∈ {𝐸}) ∧ 𝑥 = 𝑗) → 𝐸 ∈ 𝐷)
155	33	ad3antrrr 729	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝜑 ∧ 𝑗 ∈ 𝐷) ∧ 𝑥 ∈ {𝐸}) ∧ 𝑥 = 𝑗) → ¬ 𝐸 ∈ 𝐷)
156	154, 155	pm2.65da 816	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((𝜑 ∧ 𝑗 ∈ 𝐷) ∧ 𝑥 ∈ {𝐸}) → ¬ 𝑥 = 𝑗)
157		velsn 4640	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝑥 ∈ {𝑗} ↔ 𝑥 = 𝑗)
158	156, 157	sylnibr 329	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝜑 ∧ 𝑗 ∈ 𝐷) ∧ 𝑥 ∈ {𝐸}) → ¬ 𝑥 ∈ {𝑗})
159	158	ex 412	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐷) → (𝑥 ∈ {𝐸} → ¬ 𝑥 ∈ {𝑗}))
160	145, 159	ralrimi 3249	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐷) → ∀𝑥 ∈ {𝐸} ¬ 𝑥 ∈ {𝑗})
161		disj 4443	. . . . . . . . . . . . . . . . . . 19 ⊢ (({𝐸} ∩ {𝑗}) = ∅ ↔ ∀𝑥 ∈ {𝐸} ¬ 𝑥 ∈ {𝑗})
162	160, 161	sylibr 233	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐷) → ({𝐸} ∩ {𝑗}) = ∅)
163		disjdif2 4475	. . . . . . . . . . . . . . . . . 18 ⊢ (({𝐸} ∩ {𝑗}) = ∅ → ({𝐸} ∖ {𝑗}) = {𝐸})
164	162, 163	syl 17	. . . . . . . . . . . . . . . . 17 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐷) → ({𝐸} ∖ {𝑗}) = {𝐸})
165	164	uneq2d 4159	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐷) → ((𝐷 ∖ {𝑗}) ∪ ({𝐸} ∖ {𝑗})) = ((𝐷 ∖ {𝑗}) ∪ {𝐸}))
166	143, 165	eqtrd 2767	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐷) → ((𝐷 ∪ {𝐸}) ∖ {𝑗}) = ((𝐷 ∖ {𝑗}) ∪ {𝐸}))
167	166	prodeq1d 15889	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐷) → ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴 = ∏𝑖 ∈ ((𝐷 ∖ {𝑗}) ∪ {𝐸})𝐴)
168	167	adantlr 714	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴 = ∏𝑖 ∈ ((𝐷 ∖ {𝑗}) ∪ {𝐸})𝐴)
169		nfv 1910	. . . . . . . . . . . . . . 15 ⊢ Ⅎ𝑖 𝑗 ∈ 𝐷
170	6, 169	nfan 1895	. . . . . . . . . . . . . 14 ⊢ Ⅎ𝑖((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷)
171	99	adantr 480	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → (𝐷 ∖ {𝑗}) ∈ Fin)
172	51	adantr 480	. . . . . . . . . . . . . . 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 489	. . . . . . . . . . . . . . . . . 18 ⊢ (¬ 𝐸 ∈ 𝐷 → ¬ (𝐸 ∈ 𝐷 ∧ ¬ 𝐸 ∈ {𝑗}))
176	174, 175	syl 17	. . . . . . . . . . . . . . . . 17 ⊢ (¬ 𝐸 ∈ 𝐷 → ¬ (𝐸 ∈ 𝐷 ∧ ¬ 𝐸 ∈ {𝑗}))
177		eldif 3954	. . . . . . . . . . . . . . . . 17 ⊢ (𝐸 ∈ (𝐷 ∖ {𝑗}) ↔ (𝐸 ∈ 𝐷 ∧ ¬ 𝐸 ∈ {𝑗}))
178	176, 177	sylnibr 329	. . . . . . . . . . . . . . . 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 714	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) ∧ 𝑖 ∈ (𝐷 ∖ {𝑗})) → 𝐴 ∈ ℂ)
182	80	adantr 480	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → 𝐹 ∈ ℂ)
183	170, 7, 171, 173, 180, 181, 28, 182	fprodsplitsn 15957	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → ∏𝑖 ∈ ((𝐷 ∖ {𝑗}) ∪ {𝐸})𝐴 = (∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴 · 𝐹))
184		eqidd 2728	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → (∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴 · 𝐹) = (∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴 · 𝐹))
185	168, 183, 184	3eqtrd 2771	. . . . . . . . . . . 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 11259	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → ((𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹) = (𝐶 · (∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴 · 𝐹)))
188	187	eqcomd 2733	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → (𝐶 · (∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴 · 𝐹)) = ((𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹))
189	186, 188	eqtrd 2767	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑋) ∧ 𝑗 ∈ 𝐷) → (𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴) = ((𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹))
190	189	ex 412	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (𝑗 ∈ 𝐷 → (𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴) = ((𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹)))
191	95, 190	ralrimi 3249	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ∀𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴) = ((𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹))
192	191	sumeq2d 15672	. . . . . . 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 44882	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹) = Σ𝑗 ∈ 𝐷 ((𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹))
194	193	eqcomd 2733	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → Σ𝑗 ∈ 𝐷 ((𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹) = (Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹))
195		eqidd 2728	. . . . . . 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 2771	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴) = (Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹))
197	106, 80	mulcld 11256	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ (𝐷 ∖ {𝑗})𝐴) · 𝐹) ∈ ℂ)
198	196, 197	eqeltrd 2828	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → Σ𝑗 ∈ 𝐷 (𝐶 · ∏𝑖 ∈ ((𝐷 ∪ {𝐸}) ∖ {𝑗})𝐴) ∈ ℂ)
199	198, 140	addcomd 11438	. . . 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 480	. . . . 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 2772	. . 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 5240	. 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 2771	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 395 ∧ w3a 1085 = wceq 1534 Ⅎwnf 1778 ∈ wcel 2099 Ⅎwnfc 2878 ∀wral 3056 Vcvv 3469 ∖ cdif 3941 ∪ cun 3942 ∩ cin 3943 ⊆ wss 3944 ∅c0 4318 {csn 4624 {cpr 4626 ↦ cmpt 5225 (class class class)co 7414 Fincfn 8955 ℂcc 11128 ℝcr 11129 + caddc 11133 · cmul 11135 Σcsu 15656 ∏cprod 15873 D cdv 25779

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1790 ax-4 1804 ax-5 1906 ax-6 1964 ax-7 2004 ax-8 2101 ax-9 2109 ax-10 2130 ax-11 2147 ax-12 2164 ax-ext 2698 ax-rep 5279 ax-sep 5293 ax-nul 5300 ax-pow 5359 ax-pr 5423 ax-un 7734 ax-inf2 9656 ax-cnex 11186 ax-resscn 11187 ax-1cn 11188 ax-icn 11189 ax-addcl 11190 ax-addrcl 11191 ax-mulcl 11192 ax-mulrcl 11193 ax-mulcom 11194 ax-addass 11195 ax-mulass 11196 ax-distr 11197 ax-i2m1 11198 ax-1ne0 11199 ax-1rid 11200 ax-rnegex 11201 ax-rrecex 11202 ax-cnre 11203 ax-pre-lttri 11204 ax-pre-lttrn 11205 ax-pre-ltadd 11206 ax-pre-mulgt0 11207 ax-pre-sup 11208 ax-addf 11209

This theorem depends on definitions: df-bi 206 df-an 396 df-or 847 df-3or 1086 df-3an 1087 df-tru 1537 df-fal 1547 df-ex 1775 df-nf 1779 df-sb 2061 df-mo 2529 df-eu 2558 df-clab 2705 df-cleq 2719 df-clel 2805 df-nfc 2880 df-ne 2936 df-nel 3042 df-ral 3057 df-rex 3066 df-rmo 3371 df-reu 3372 df-rab 3428 df-v 3471 df-sbc 3775 df-csb 3890 df-dif 3947 df-un 3949 df-in 3951 df-ss 3961 df-pss 3963 df-nul 4319 df-if 4525 df-pw 4600 df-sn 4625 df-pr 4627 df-tp 4629 df-op 4631 df-uni 4904 df-int 4945 df-iun 4993 df-iin 4994 df-br 5143 df-opab 5205 df-mpt 5226 df-tr 5260 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 6299 df-ord 6366 df-on 6367 df-lim 6368 df-suc 6369 df-iota 6494 df-fun 6544 df-fn 6545 df-f 6546 df-f1 6547 df-fo 6548 df-f1o 6549 df-fv 6550 df-isom 6551 df-riota 7370 df-ov 7417 df-oprab 7418 df-mpo 7419 df-of 7679 df-om 7865 df-1st 7987 df-2nd 7988 df-supp 8160 df-frecs 8280 df-wrecs 8311 df-recs 8385 df-rdg 8424 df-1o 8480 df-2o 8481 df-er 8718 df-map 8838 df-pm 8839 df-ixp 8908 df-en 8956 df-dom 8957 df-sdom 8958 df-fin 8959 df-fsupp 9378 df-fi 9426 df-sup 9457 df-inf 9458 df-oi 9525 df-card 9954 df-pnf 11272 df-mnf 11273 df-xr 11274 df-ltxr 11275 df-le 11276 df-sub 11468 df-neg 11469 df-div 11894 df-nn 12235 df-2 12297 df-3 12298 df-4 12299 df-5 12300 df-6 12301 df-7 12302 df-8 12303 df-9 12304 df-n0 12495 df-z 12581 df-dec 12700 df-uz 12845 df-q 12955 df-rp 12999 df-xneg 13116 df-xadd 13117 df-xmul 13118 df-icc 13355 df-fz 13509 df-fzo 13652 df-seq 13991 df-exp 14051 df-hash 14314 df-cj 15070 df-re 15071 df-im 15072 df-sqrt 15206 df-abs 15207 df-clim 15456 df-sum 15657 df-prod 15874 df-struct 17107 df-sets 17124 df-slot 17142 df-ndx 17154 df-base 17172 df-ress 17201 df-plusg 17237 df-mulr 17238 df-starv 17239 df-sca 17240 df-vsca 17241 df-ip 17242 df-tset 17243 df-ple 17244 df-ds 17246 df-unif 17247 df-hom 17248 df-cco 17249 df-rest 17395 df-topn 17396 df-0g 17414 df-gsum 17415 df-topgen 17416 df-pt 17417 df-prds 17420 df-xrs 17475 df-qtop 17480 df-imas 17481 df-xps 17483 df-mre 17557 df-mrc 17558 df-acs 17560 df-mgm 18591 df-sgrp 18670 df-mnd 18686 df-submnd 18732 df-mulg 19015 df-cntz 19259 df-cmn 19728 df-psmet 21258 df-xmet 21259 df-met 21260 df-bl 21261 df-mopn 21262 df-fbas 21263 df-fg 21264 df-cnfld 21267 df-top 22783 df-topon 22800 df-topsp 22822 df-bases 22836 df-cld 22910 df-ntr 22911 df-cls 22912 df-nei 22989 df-lp 23027 df-perf 23028 df-cn 23118 df-cnp 23119 df-haus 23206 df-tx 23453 df-hmeo 23646 df-fil 23737 df-fm 23829 df-flim 23830 df-flf 23831 df-xms 24213 df-ms 24214 df-tms 24215 df-cncf 24785 df-limc 25782 df-dv 25783

This theorem is referenced by: dvmptfprod 45256

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