Theorem evl1gprodd 42773

Description: Polynomial evaluation builder for a finite group product of polynomials. (Contributed by metakunt, 29-Apr-2025.)

Hypotheses

Ref	Expression
evl1gprodd.1	⊢ 𝑂 = (eval1‘𝑅)
evl1gprodd.2	⊢ 𝑃 = (Poly1‘𝑅)
evl1gprodd.3	⊢ 𝑄 = (mulGrp‘𝑃)
evl1gprodd.4	⊢ 𝐵 = (Base‘𝑅)
evl1gprodd.5	⊢ 𝑈 = (Base‘𝑃)
evl1gprodd.6	⊢ 𝑆 = (mulGrp‘𝑅)
evl1gprodd.7	⊢ (𝜑 → 𝑅 ∈ CRing)
evl1gprodd.8	⊢ (𝜑 → 𝑌 ∈ 𝐵)
evl1gprodd.9	⊢ (𝜑 → ∀𝑥 ∈ 𝑁 𝑀 ∈ 𝑈)
evl1gprodd.10	⊢ (𝜑 → 𝑁 ∈ Fin)

Assertion

Ref	Expression
evl1gprodd	⊢ (𝜑 → ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑁 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑁 ↦ ((𝑂‘𝑀)‘𝑌))))

Distinct variable groups:   𝑥,𝑁   𝑥,𝑂   𝑥,𝑈   𝑥,𝑌

Allowed substitution hints:   𝜑(𝑥)   𝐵(𝑥)   𝑃(𝑥)   𝑄(𝑥)   𝑅(𝑥)   𝑆(𝑥)   𝑀(𝑥)

Proof of Theorem evl1gprodd

Dummy variables 𝑎 𝑏 𝑐 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		mpteq1 5204	. . . . . 6 ⊢ (𝑎 = ∅ → (𝑥 ∈ 𝑎 ↦ 𝑀) = (𝑥 ∈ ∅ ↦ 𝑀))
2	1	oveq2d 7427	. . . . 5 ⊢ (𝑎 = ∅ → (𝑄 Σg (𝑥 ∈ 𝑎 ↦ 𝑀)) = (𝑄 Σg (𝑥 ∈ ∅ ↦ 𝑀)))
3	2	fveq2d 6886	. . . 4 ⊢ (𝑎 = ∅ → (𝑂‘(𝑄 Σg (𝑥 ∈ 𝑎 ↦ 𝑀))) = (𝑂‘(𝑄 Σg (𝑥 ∈ ∅ ↦ 𝑀))))
4	3	fveq1d 6884	. . 3 ⊢ (𝑎 = ∅ → ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑎 ↦ 𝑀)))‘𝑌) = ((𝑂‘(𝑄 Σg (𝑥 ∈ ∅ ↦ 𝑀)))‘𝑌))
5		mpteq1 5204	. . . 4 ⊢ (𝑎 = ∅ → (𝑥 ∈ 𝑎 ↦ ((𝑂‘𝑀)‘𝑌)) = (𝑥 ∈ ∅ ↦ ((𝑂‘𝑀)‘𝑌)))
6	5	oveq2d 7427	. . 3 ⊢ (𝑎 = ∅ → (𝑆 Σg (𝑥 ∈ 𝑎 ↦ ((𝑂‘𝑀)‘𝑌))) = (𝑆 Σg (𝑥 ∈ ∅ ↦ ((𝑂‘𝑀)‘𝑌))))
7	4, 6	eqeq12d 2785	. 2 ⊢ (𝑎 = ∅ → (((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑎 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑎 ↦ ((𝑂‘𝑀)‘𝑌))) ↔ ((𝑂‘(𝑄 Σg (𝑥 ∈ ∅ ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ ∅ ↦ ((𝑂‘𝑀)‘𝑌)))))
8		mpteq1 5204	. . . . . 6 ⊢ (𝑎 = 𝑏 → (𝑥 ∈ 𝑎 ↦ 𝑀) = (𝑥 ∈ 𝑏 ↦ 𝑀))
9	8	oveq2d 7427	. . . . 5 ⊢ (𝑎 = 𝑏 → (𝑄 Σg (𝑥 ∈ 𝑎 ↦ 𝑀)) = (𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))
10	9	fveq2d 6886	. . . 4 ⊢ (𝑎 = 𝑏 → (𝑂‘(𝑄 Σg (𝑥 ∈ 𝑎 ↦ 𝑀))) = (𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀))))
11	10	fveq1d 6884	. . 3 ⊢ (𝑎 = 𝑏 → ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑎 ↦ 𝑀)))‘𝑌) = ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌))
12		mpteq1 5204	. . . 4 ⊢ (𝑎 = 𝑏 → (𝑥 ∈ 𝑎 ↦ ((𝑂‘𝑀)‘𝑌)) = (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))
13	12	oveq2d 7427	. . 3 ⊢ (𝑎 = 𝑏 → (𝑆 Σg (𝑥 ∈ 𝑎 ↦ ((𝑂‘𝑀)‘𝑌))) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌))))
14	11, 13	eqeq12d 2785	. 2 ⊢ (𝑎 = 𝑏 → (((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑎 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑎 ↦ ((𝑂‘𝑀)‘𝑌))) ↔ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))))
15		mpteq1 5204	. . . . . 6 ⊢ (𝑎 = (𝑏 ∪ {𝑐}) → (𝑥 ∈ 𝑎 ↦ 𝑀) = (𝑥 ∈ (𝑏 ∪ {𝑐}) ↦ 𝑀))
16	15	oveq2d 7427	. . . . 5 ⊢ (𝑎 = (𝑏 ∪ {𝑐}) → (𝑄 Σg (𝑥 ∈ 𝑎 ↦ 𝑀)) = (𝑄 Σg (𝑥 ∈ (𝑏 ∪ {𝑐}) ↦ 𝑀)))
17	16	fveq2d 6886	. . . 4 ⊢ (𝑎 = (𝑏 ∪ {𝑐}) → (𝑂‘(𝑄 Σg (𝑥 ∈ 𝑎 ↦ 𝑀))) = (𝑂‘(𝑄 Σg (𝑥 ∈ (𝑏 ∪ {𝑐}) ↦ 𝑀))))
18	17	fveq1d 6884	. . 3 ⊢ (𝑎 = (𝑏 ∪ {𝑐}) → ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑎 ↦ 𝑀)))‘𝑌) = ((𝑂‘(𝑄 Σg (𝑥 ∈ (𝑏 ∪ {𝑐}) ↦ 𝑀)))‘𝑌))
19		mpteq1 5204	. . . 4 ⊢ (𝑎 = (𝑏 ∪ {𝑐}) → (𝑥 ∈ 𝑎 ↦ ((𝑂‘𝑀)‘𝑌)) = (𝑥 ∈ (𝑏 ∪ {𝑐}) ↦ ((𝑂‘𝑀)‘𝑌)))
20	19	oveq2d 7427	. . 3 ⊢ (𝑎 = (𝑏 ∪ {𝑐}) → (𝑆 Σg (𝑥 ∈ 𝑎 ↦ ((𝑂‘𝑀)‘𝑌))) = (𝑆 Σg (𝑥 ∈ (𝑏 ∪ {𝑐}) ↦ ((𝑂‘𝑀)‘𝑌))))
21	18, 20	eqeq12d 2785	. 2 ⊢ (𝑎 = (𝑏 ∪ {𝑐}) → (((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑎 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑎 ↦ ((𝑂‘𝑀)‘𝑌))) ↔ ((𝑂‘(𝑄 Σg (𝑥 ∈ (𝑏 ∪ {𝑐}) ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ (𝑏 ∪ {𝑐}) ↦ ((𝑂‘𝑀)‘𝑌)))))
22		mpteq1 5204	. . . . . 6 ⊢ (𝑎 = 𝑁 → (𝑥 ∈ 𝑎 ↦ 𝑀) = (𝑥 ∈ 𝑁 ↦ 𝑀))
23	22	oveq2d 7427	. . . . 5 ⊢ (𝑎 = 𝑁 → (𝑄 Σg (𝑥 ∈ 𝑎 ↦ 𝑀)) = (𝑄 Σg (𝑥 ∈ 𝑁 ↦ 𝑀)))
24	23	fveq2d 6886	. . . 4 ⊢ (𝑎 = 𝑁 → (𝑂‘(𝑄 Σg (𝑥 ∈ 𝑎 ↦ 𝑀))) = (𝑂‘(𝑄 Σg (𝑥 ∈ 𝑁 ↦ 𝑀))))
25	24	fveq1d 6884	. . 3 ⊢ (𝑎 = 𝑁 → ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑎 ↦ 𝑀)))‘𝑌) = ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑁 ↦ 𝑀)))‘𝑌))
26		mpteq1 5204	. . . 4 ⊢ (𝑎 = 𝑁 → (𝑥 ∈ 𝑎 ↦ ((𝑂‘𝑀)‘𝑌)) = (𝑥 ∈ 𝑁 ↦ ((𝑂‘𝑀)‘𝑌)))
27	26	oveq2d 7427	. . 3 ⊢ (𝑎 = 𝑁 → (𝑆 Σg (𝑥 ∈ 𝑎 ↦ ((𝑂‘𝑀)‘𝑌))) = (𝑆 Σg (𝑥 ∈ 𝑁 ↦ ((𝑂‘𝑀)‘𝑌))))
28	25, 27	eqeq12d 2785	. 2 ⊢ (𝑎 = 𝑁 → (((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑎 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑎 ↦ ((𝑂‘𝑀)‘𝑌))) ↔ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑁 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑁 ↦ ((𝑂‘𝑀)‘𝑌)))))
29		mpt0 6678	. . . . . . 7 ⊢ (𝑥 ∈ ∅ ↦ 𝑀) = ∅
30	29	a1i 11	. . . . . 6 ⊢ (𝜑 → (𝑥 ∈ ∅ ↦ 𝑀) = ∅)
31	30	oveq2d 7427	. . . . 5 ⊢ (𝜑 → (𝑄 Σg (𝑥 ∈ ∅ ↦ 𝑀)) = (𝑄 Σg ∅))
32	31	fveq2d 6886	. . . 4 ⊢ (𝜑 → (𝑂‘(𝑄 Σg (𝑥 ∈ ∅ ↦ 𝑀))) = (𝑂‘(𝑄 Σg ∅)))
33	32	fveq1d 6884	. . 3 ⊢ (𝜑 → ((𝑂‘(𝑄 Σg (𝑥 ∈ ∅ ↦ 𝑀)))‘𝑌) = ((𝑂‘(𝑄 Σg ∅))‘𝑌))
34		mpt0 6678	. . . . . 6 ⊢ (𝑥 ∈ ∅ ↦ ((𝑂‘𝑀)‘𝑌)) = ∅
35	34	a1i 11	. . . . 5 ⊢ (𝜑 → (𝑥 ∈ ∅ ↦ ((𝑂‘𝑀)‘𝑌)) = ∅)
36	35	oveq2d 7427	. . . 4 ⊢ (𝜑 → (𝑆 Σg (𝑥 ∈ ∅ ↦ ((𝑂‘𝑀)‘𝑌))) = (𝑆 Σg ∅))
37		eqid 2769	. . . . . . 7 ⊢ (0g‘𝑆) = (0g‘𝑆)
38	37	gsum0 18741	. . . . . 6 ⊢ (𝑆 Σg ∅) = (0g‘𝑆)
39	38	a1i 11	. . . . 5 ⊢ (𝜑 → (𝑆 Σg ∅) = (0g‘𝑆))
40		evl1gprodd.6	. . . . . . . . 9 ⊢ 𝑆 = (mulGrp‘𝑅)
41		eqid 2769	. . . . . . . . 9 ⊢ (1r‘𝑅) = (1r‘𝑅)
42	40, 41	ringidval 20264	. . . . . . . 8 ⊢ (1r‘𝑅) = (0g‘𝑆)
43	42	eqcomi 2778	. . . . . . 7 ⊢ (0g‘𝑆) = (1r‘𝑅)
44	43	a1i 11	. . . . . 6 ⊢ (𝜑 → (0g‘𝑆) = (1r‘𝑅))
45		evl1gprodd.1	. . . . . . . . . 10 ⊢ 𝑂 = (eval1‘𝑅)
46		evl1gprodd.2	. . . . . . . . . 10 ⊢ 𝑃 = (Poly1‘𝑅)
47		evl1gprodd.4	. . . . . . . . . 10 ⊢ 𝐵 = (Base‘𝑅)
48		eqid 2769	. . . . . . . . . 10 ⊢ (algSc‘𝑃) = (algSc‘𝑃)
49		evl1gprodd.5	. . . . . . . . . 10 ⊢ 𝑈 = (Base‘𝑃)
50		evl1gprodd.7	. . . . . . . . . 10 ⊢ (𝜑 → 𝑅 ∈ CRing)
51	50	crngringd 20327	. . . . . . . . . . . . . 14 ⊢ (𝜑 → 𝑅 ∈ Ring)
52	40	ringmgp 20320	. . . . . . . . . . . . . 14 ⊢ (𝑅 ∈ Ring → 𝑆 ∈ Mnd)
53	51, 52	syl 18	. . . . . . . . . . . . 13 ⊢ (𝜑 → 𝑆 ∈ Mnd)
54		eqid 2769	. . . . . . . . . . . . . 14 ⊢ (Base‘𝑆) = (Base‘𝑆)
55	54, 37	mndidcl 18806	. . . . . . . . . . . . 13 ⊢ (𝑆 ∈ Mnd → (0g‘𝑆) ∈ (Base‘𝑆))
56	53, 55	syl 18	. . . . . . . . . . . 12 ⊢ (𝜑 → (0g‘𝑆) ∈ (Base‘𝑆))
57		eqid 2769	. . . . . . . . . . . . . 14 ⊢ (Base‘𝑅) = (Base‘𝑅)
58	40, 57	mgpbas 20220	. . . . . . . . . . . . 13 ⊢ (Base‘𝑅) = (Base‘𝑆)
59	47, 58	eqtri 2792	. . . . . . . . . . . 12 ⊢ 𝐵 = (Base‘𝑆)
60	56, 59	eleqtrrdi 2880	. . . . . . . . . . 11 ⊢ (𝜑 → (0g‘𝑆) ∈ 𝐵)
61	42	a1i 11	. . . . . . . . . . . 12 ⊢ (𝜑 → (1r‘𝑅) = (0g‘𝑆))
62	61	eleq1d 2854	. . . . . . . . . . 11 ⊢ (𝜑 → ((1r‘𝑅) ∈ 𝐵 ↔ (0g‘𝑆) ∈ 𝐵))
63	60, 62	mpbird 260	. . . . . . . . . 10 ⊢ (𝜑 → (1r‘𝑅) ∈ 𝐵)
64		evl1gprodd.8	. . . . . . . . . 10 ⊢ (𝜑 → 𝑌 ∈ 𝐵)
65	45, 46, 47, 48, 49, 50, 63, 64	evl1scad 22463	. . . . . . . . 9 ⊢ (𝜑 → (((algSc‘𝑃)‘(1r‘𝑅)) ∈ 𝑈 ∧ ((𝑂‘((algSc‘𝑃)‘(1r‘𝑅)))‘𝑌) = (1r‘𝑅)))
66	65	simprd 500	. . . . . . . 8 ⊢ (𝜑 → ((𝑂‘((algSc‘𝑃)‘(1r‘𝑅)))‘𝑌) = (1r‘𝑅))
67	66	eqcomd 2775	. . . . . . 7 ⊢ (𝜑 → (1r‘𝑅) = ((𝑂‘((algSc‘𝑃)‘(1r‘𝑅)))‘𝑌))
68		eqid 2769	. . . . . . . . . . . 12 ⊢ (1r‘𝑃) = (1r‘𝑃)
69	46, 48, 41, 68	ply1scl1 22421	. . . . . . . . . . 11 ⊢ (𝑅 ∈ Ring → ((algSc‘𝑃)‘(1r‘𝑅)) = (1r‘𝑃))
70	51, 69	syl 18	. . . . . . . . . 10 ⊢ (𝜑 → ((algSc‘𝑃)‘(1r‘𝑅)) = (1r‘𝑃))
71		evl1gprodd.3	. . . . . . . . . . . 12 ⊢ 𝑄 = (mulGrp‘𝑃)
72	71, 68	ringidval 20264	. . . . . . . . . . 11 ⊢ (1r‘𝑃) = (0g‘𝑄)
73	72	a1i 11	. . . . . . . . . 10 ⊢ (𝜑 → (1r‘𝑃) = (0g‘𝑄))
74	70, 73	eqtrd 2804	. . . . . . . . 9 ⊢ (𝜑 → ((algSc‘𝑃)‘(1r‘𝑅)) = (0g‘𝑄))
75	74	fveq2d 6886	. . . . . . . 8 ⊢ (𝜑 → (𝑂‘((algSc‘𝑃)‘(1r‘𝑅))) = (𝑂‘(0g‘𝑄)))
76	75	fveq1d 6884	. . . . . . 7 ⊢ (𝜑 → ((𝑂‘((algSc‘𝑃)‘(1r‘𝑅)))‘𝑌) = ((𝑂‘(0g‘𝑄))‘𝑌))
77	67, 76	eqtrd 2804	. . . . . 6 ⊢ (𝜑 → (1r‘𝑅) = ((𝑂‘(0g‘𝑄))‘𝑌))
78	44, 77	eqtrd 2804	. . . . 5 ⊢ (𝜑 → (0g‘𝑆) = ((𝑂‘(0g‘𝑄))‘𝑌))
79		eqid 2769	. . . . . . . . . 10 ⊢ (0g‘𝑄) = (0g‘𝑄)
80	79	gsum0 18741	. . . . . . . . 9 ⊢ (𝑄 Σg ∅) = (0g‘𝑄)
81	80	a1i 11	. . . . . . . 8 ⊢ (𝜑 → (𝑄 Σg ∅) = (0g‘𝑄))
82	81	eqcomd 2775	. . . . . . 7 ⊢ (𝜑 → (0g‘𝑄) = (𝑄 Σg ∅))
83	82	fveq2d 6886	. . . . . 6 ⊢ (𝜑 → (𝑂‘(0g‘𝑄)) = (𝑂‘(𝑄 Σg ∅)))
84	83	fveq1d 6884	. . . . 5 ⊢ (𝜑 → ((𝑂‘(0g‘𝑄))‘𝑌) = ((𝑂‘(𝑄 Σg ∅))‘𝑌))
85	39, 78, 84	3eqtrd 2808	. . . 4 ⊢ (𝜑 → (𝑆 Σg ∅) = ((𝑂‘(𝑄 Σg ∅))‘𝑌))
86	36, 85	eqtr2d 2805	. . 3 ⊢ (𝜑 → ((𝑂‘(𝑄 Σg ∅))‘𝑌) = (𝑆 Σg (𝑥 ∈ ∅ ↦ ((𝑂‘𝑀)‘𝑌))))
87	33, 86	eqtrd 2804	. 2 ⊢ (𝜑 → ((𝑂‘(𝑄 Σg (𝑥 ∈ ∅ ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ ∅ ↦ ((𝑂‘𝑀)‘𝑌))))
88		nfcv 2931	. . . . . . . . . . 11 ⊢ Ⅎ𝑦𝑀
89		nfcsb1v 3885	. . . . . . . . . . 11 ⊢ Ⅎ𝑥⦋𝑦 / 𝑥⦌𝑀
90		csbeq1a 3875	. . . . . . . . . . 11 ⊢ (𝑥 = 𝑦 → 𝑀 = ⦋𝑦 / 𝑥⦌𝑀)
91	88, 89, 90	cbvmpt 5217	. . . . . . . . . 10 ⊢ (𝑥 ∈ (𝑏 ∪ {𝑐}) ↦ 𝑀) = (𝑦 ∈ (𝑏 ∪ {𝑐}) ↦ ⦋𝑦 / 𝑥⦌𝑀)
92	91	a1i 11	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → (𝑥 ∈ (𝑏 ∪ {𝑐}) ↦ 𝑀) = (𝑦 ∈ (𝑏 ∪ {𝑐}) ↦ ⦋𝑦 / 𝑥⦌𝑀))
93	92	oveq2d 7427	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → (𝑄 Σg (𝑥 ∈ (𝑏 ∪ {𝑐}) ↦ 𝑀)) = (𝑄 Σg (𝑦 ∈ (𝑏 ∪ {𝑐}) ↦ ⦋𝑦 / 𝑥⦌𝑀)))
94	93	fveq2d 6886	. . . . . . 7 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → (𝑂‘(𝑄 Σg (𝑥 ∈ (𝑏 ∪ {𝑐}) ↦ 𝑀))) = (𝑂‘(𝑄 Σg (𝑦 ∈ (𝑏 ∪ {𝑐}) ↦ ⦋𝑦 / 𝑥⦌𝑀))))
95	94	fveq1d 6884	. . . . . 6 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → ((𝑂‘(𝑄 Σg (𝑥 ∈ (𝑏 ∪ {𝑐}) ↦ 𝑀)))‘𝑌) = ((𝑂‘(𝑄 Σg (𝑦 ∈ (𝑏 ∪ {𝑐}) ↦ ⦋𝑦 / 𝑥⦌𝑀)))‘𝑌))
96		eqid 2769	. . . . . . . . . 10 ⊢ (Base‘𝑄) = (Base‘𝑄)
97		eqid 2769	. . . . . . . . . . 11 ⊢ (.r‘𝑃) = (.r‘𝑃)
98	71, 97	mgpplusg 20219	. . . . . . . . . 10 ⊢ (.r‘𝑃) = (+g‘𝑄)
99	46	ply1crng 22326	. . . . . . . . . . . . . 14 ⊢ (𝑅 ∈ CRing → 𝑃 ∈ CRing)
100	50, 99	syl 18	. . . . . . . . . . . . 13 ⊢ (𝜑 → 𝑃 ∈ CRing)
101	71	crngmgp 20322	. . . . . . . . . . . . 13 ⊢ (𝑃 ∈ CRing → 𝑄 ∈ CMnd)
102	100, 101	syl 18	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝑄 ∈ CMnd)
103	102	adantr 485	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) → 𝑄 ∈ CMnd)
104	103	adantr 485	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → 𝑄 ∈ CMnd)
105		evl1gprodd.10	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝑁 ∈ Fin)
106	105	ad2antrr 738	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → 𝑁 ∈ Fin)
107		simplrl 788	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → 𝑏 ⊆ 𝑁)
108	106, 107	ssfid 9228	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → 𝑏 ∈ Fin)
109		evl1gprodd.9	. . . . . . . . . . . . 13 ⊢ (𝜑 → ∀𝑥 ∈ 𝑁 𝑀 ∈ 𝑈)
110	109	ad3antrrr 742	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) ∧ 𝑦 ∈ 𝑏) → ∀𝑥 ∈ 𝑁 𝑀 ∈ 𝑈)
111	107	sselda 3945	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) ∧ 𝑦 ∈ 𝑏) → 𝑦 ∈ 𝑁)
112		rspcsbela 4409	. . . . . . . . . . . . . 14 ⊢ ((𝑦 ∈ 𝑁 ∧ ∀𝑥 ∈ 𝑁 𝑀 ∈ 𝑈) → ⦋𝑦 / 𝑥⦌𝑀 ∈ 𝑈)
113	112	expcom 418	. . . . . . . . . . . . 13 ⊢ (∀𝑥 ∈ 𝑁 𝑀 ∈ 𝑈 → (𝑦 ∈ 𝑁 → ⦋𝑦 / 𝑥⦌𝑀 ∈ 𝑈))
114	113	imp 411	. . . . . . . . . . . 12 ⊢ ((∀𝑥 ∈ 𝑁 𝑀 ∈ 𝑈 ∧ 𝑦 ∈ 𝑁) → ⦋𝑦 / 𝑥⦌𝑀 ∈ 𝑈)
115	110, 111, 114	syl2anc 595	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) ∧ 𝑦 ∈ 𝑏) → ⦋𝑦 / 𝑥⦌𝑀 ∈ 𝑈)
116	71, 49	mgpbas 20220	. . . . . . . . . . . . . . . . 17 ⊢ 𝑈 = (Base‘𝑄)
117	116	eqcomi 2778	. . . . . . . . . . . . . . . 16 ⊢ (Base‘𝑄) = 𝑈
118	117	a1i 11	. . . . . . . . . . . . . . 15 ⊢ (𝜑 → (Base‘𝑄) = 𝑈)
119	118	adantr 485	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) → (Base‘𝑄) = 𝑈)
120	119	adantr 485	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → (Base‘𝑄) = 𝑈)
121	120	adantr 485	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) ∧ 𝑦 ∈ 𝑏) → (Base‘𝑄) = 𝑈)
122	121	eleq2d 2855	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) ∧ 𝑦 ∈ 𝑏) → (⦋𝑦 / 𝑥⦌𝑀 ∈ (Base‘𝑄) ↔ ⦋𝑦 / 𝑥⦌𝑀 ∈ 𝑈))
123	115, 122	mpbird 260	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) ∧ 𝑦 ∈ 𝑏) → ⦋𝑦 / 𝑥⦌𝑀 ∈ (Base‘𝑄))
124		simplrr 789	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → 𝑐 ∈ (𝑁 ∖ 𝑏))
125	124	eldifbd 3926	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → ¬ 𝑐 ∈ 𝑏)
126	124	eldifad 3925	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → 𝑐 ∈ 𝑁)
127	109	ad2antrr 738	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → ∀𝑥 ∈ 𝑁 𝑀 ∈ 𝑈)
128		rspcsbela 4409	. . . . . . . . . . . 12 ⊢ ((𝑐 ∈ 𝑁 ∧ ∀𝑥 ∈ 𝑁 𝑀 ∈ 𝑈) → ⦋𝑐 / 𝑥⦌𝑀 ∈ 𝑈)
129	126, 127, 128	syl2anc 595	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → ⦋𝑐 / 𝑥⦌𝑀 ∈ 𝑈)
130	120	eleq2d 2855	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → (⦋𝑐 / 𝑥⦌𝑀 ∈ (Base‘𝑄) ↔ ⦋𝑐 / 𝑥⦌𝑀 ∈ 𝑈))
131	129, 130	mpbird 260	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → ⦋𝑐 / 𝑥⦌𝑀 ∈ (Base‘𝑄))
132		csbeq1 3864	. . . . . . . . . 10 ⊢ (𝑦 = 𝑐 → ⦋𝑦 / 𝑥⦌𝑀 = ⦋𝑐 / 𝑥⦌𝑀)
133	96, 98, 104, 108, 123, 124, 125, 131, 132	gsumunsn 20029	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → (𝑄 Σg (𝑦 ∈ (𝑏 ∪ {𝑐}) ↦ ⦋𝑦 / 𝑥⦌𝑀)) = ((𝑄 Σg (𝑦 ∈ 𝑏 ↦ ⦋𝑦 / 𝑥⦌𝑀))(.r‘𝑃)⦋𝑐 / 𝑥⦌𝑀))
134	133	fveq2d 6886	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → (𝑂‘(𝑄 Σg (𝑦 ∈ (𝑏 ∪ {𝑐}) ↦ ⦋𝑦 / 𝑥⦌𝑀))) = (𝑂‘((𝑄 Σg (𝑦 ∈ 𝑏 ↦ ⦋𝑦 / 𝑥⦌𝑀))(.r‘𝑃)⦋𝑐 / 𝑥⦌𝑀)))
135	134	fveq1d 6884	. . . . . . 7 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → ((𝑂‘(𝑄 Σg (𝑦 ∈ (𝑏 ∪ {𝑐}) ↦ ⦋𝑦 / 𝑥⦌𝑀)))‘𝑌) = ((𝑂‘((𝑄 Σg (𝑦 ∈ 𝑏 ↦ ⦋𝑦 / 𝑥⦌𝑀))(.r‘𝑃)⦋𝑐 / 𝑥⦌𝑀))‘𝑌))
136	50	ad2antrr 738	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → 𝑅 ∈ CRing)
137	64	ad2antrr 738	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → 𝑌 ∈ 𝐵)
138	115	ralrimiva 3163	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → ∀𝑦 ∈ 𝑏 ⦋𝑦 / 𝑥⦌𝑀 ∈ 𝑈)
139	116, 104, 108, 138	gsummptcl 20036	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → (𝑄 Σg (𝑦 ∈ 𝑏 ↦ ⦋𝑦 / 𝑥⦌𝑀)) ∈ 𝑈)
140	90	equcoms 2047	. . . . . . . . . . . . . . . 16 ⊢ (𝑦 = 𝑥 → 𝑀 = ⦋𝑦 / 𝑥⦌𝑀)
141	140	eqcomd 2775	. . . . . . . . . . . . . . 15 ⊢ (𝑦 = 𝑥 → ⦋𝑦 / 𝑥⦌𝑀 = 𝑀)
142	89, 88, 141	cbvmpt 5217	. . . . . . . . . . . . . 14 ⊢ (𝑦 ∈ 𝑏 ↦ ⦋𝑦 / 𝑥⦌𝑀) = (𝑥 ∈ 𝑏 ↦ 𝑀)
143	142	a1i 11	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → (𝑦 ∈ 𝑏 ↦ ⦋𝑦 / 𝑥⦌𝑀) = (𝑥 ∈ 𝑏 ↦ 𝑀))
144	143	oveq2d 7427	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → (𝑄 Σg (𝑦 ∈ 𝑏 ↦ ⦋𝑦 / 𝑥⦌𝑀)) = (𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))
145	144	fveq2d 6886	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → (𝑂‘(𝑄 Σg (𝑦 ∈ 𝑏 ↦ ⦋𝑦 / 𝑥⦌𝑀))) = (𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀))))
146	145	fveq1d 6884	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → ((𝑂‘(𝑄 Σg (𝑦 ∈ 𝑏 ↦ ⦋𝑦 / 𝑥⦌𝑀)))‘𝑌) = ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌))
147	139, 146	jca 520	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → ((𝑄 Σg (𝑦 ∈ 𝑏 ↦ ⦋𝑦 / 𝑥⦌𝑀)) ∈ 𝑈 ∧ ((𝑂‘(𝑄 Σg (𝑦 ∈ 𝑏 ↦ ⦋𝑦 / 𝑥⦌𝑀)))‘𝑌) = ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌)))
148		eqidd 2770	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → ((𝑂‘⦋𝑐 / 𝑥⦌𝑀)‘𝑌) = ((𝑂‘⦋𝑐 / 𝑥⦌𝑀)‘𝑌))
149	129, 148	jca 520	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → (⦋𝑐 / 𝑥⦌𝑀 ∈ 𝑈 ∧ ((𝑂‘⦋𝑐 / 𝑥⦌𝑀)‘𝑌) = ((𝑂‘⦋𝑐 / 𝑥⦌𝑀)‘𝑌)))
150		eqid 2769	. . . . . . . . 9 ⊢ (.r‘𝑅) = (.r‘𝑅)
151	45, 46, 47, 49, 136, 137, 147, 149, 97, 150	evl1muld 22471	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → (((𝑄 Σg (𝑦 ∈ 𝑏 ↦ ⦋𝑦 / 𝑥⦌𝑀))(.r‘𝑃)⦋𝑐 / 𝑥⦌𝑀) ∈ 𝑈 ∧ ((𝑂‘((𝑄 Σg (𝑦 ∈ 𝑏 ↦ ⦋𝑦 / 𝑥⦌𝑀))(.r‘𝑃)⦋𝑐 / 𝑥⦌𝑀))‘𝑌) = (((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌)(.r‘𝑅)((𝑂‘⦋𝑐 / 𝑥⦌𝑀)‘𝑌))))
152	151	simprd 500	. . . . . . 7 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → ((𝑂‘((𝑄 Σg (𝑦 ∈ 𝑏 ↦ ⦋𝑦 / 𝑥⦌𝑀))(.r‘𝑃)⦋𝑐 / 𝑥⦌𝑀))‘𝑌) = (((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌)(.r‘𝑅)((𝑂‘⦋𝑐 / 𝑥⦌𝑀)‘𝑌)))
153	135, 152	eqtrd 2804	. . . . . 6 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → ((𝑂‘(𝑄 Σg (𝑦 ∈ (𝑏 ∪ {𝑐}) ↦ ⦋𝑦 / 𝑥⦌𝑀)))‘𝑌) = (((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌)(.r‘𝑅)((𝑂‘⦋𝑐 / 𝑥⦌𝑀)‘𝑌)))
154	95, 153	eqtrd 2804	. . . . 5 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → ((𝑂‘(𝑄 Σg (𝑥 ∈ (𝑏 ∪ {𝑐}) ↦ 𝑀)))‘𝑌) = (((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌)(.r‘𝑅)((𝑂‘⦋𝑐 / 𝑥⦌𝑀)‘𝑌)))
155	40, 150	mgpplusg 20219	. . . . . . . 8 ⊢ (.r‘𝑅) = (+g‘𝑆)
156		eqid 2769	. . . . . . . . . . . . 13 ⊢ (mulGrp‘𝑅) = (mulGrp‘𝑅)
157	156	crngmgp 20322	. . . . . . . . . . . 12 ⊢ (𝑅 ∈ CRing → (mulGrp‘𝑅) ∈ CMnd)
158	50, 157	syl 18	. . . . . . . . . . 11 ⊢ (𝜑 → (mulGrp‘𝑅) ∈ CMnd)
159	40, 158	eqeltrid 2873	. . . . . . . . . 10 ⊢ (𝜑 → 𝑆 ∈ CMnd)
160	159	adantr 485	. . . . . . . . 9 ⊢ ((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) → 𝑆 ∈ CMnd)
161	160	adantr 485	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → 𝑆 ∈ CMnd)
162		csbfv12 6927	. . . . . . . . . 10 ⊢ ⦋𝑦 / 𝑥⦌((𝑂‘𝑀)‘𝑌) = (⦋𝑦 / 𝑥⦌(𝑂‘𝑀)‘⦋𝑦 / 𝑥⦌𝑌)
163		csbfv2g 6928	. . . . . . . . . . . 12 ⊢ (𝑦 ∈ V → ⦋𝑦 / 𝑥⦌(𝑂‘𝑀) = (𝑂‘⦋𝑦 / 𝑥⦌𝑀))
164	163	elv 3468	. . . . . . . . . . 11 ⊢ ⦋𝑦 / 𝑥⦌(𝑂‘𝑀) = (𝑂‘⦋𝑦 / 𝑥⦌𝑀)
165		vex 3467	. . . . . . . . . . . 12 ⊢ 𝑦 ∈ V
166		nfcv 2931	. . . . . . . . . . . 12 ⊢ Ⅎ𝑥𝑌
167	165, 166	csbgfi 3881	. . . . . . . . . . 11 ⊢ ⦋𝑦 / 𝑥⦌𝑌 = 𝑌
168	164, 167	fveq12i 6888	. . . . . . . . . 10 ⊢ (⦋𝑦 / 𝑥⦌(𝑂‘𝑀)‘⦋𝑦 / 𝑥⦌𝑌) = ((𝑂‘⦋𝑦 / 𝑥⦌𝑀)‘𝑌)
169	162, 168	eqtri 2792	. . . . . . . . 9 ⊢ ⦋𝑦 / 𝑥⦌((𝑂‘𝑀)‘𝑌) = ((𝑂‘⦋𝑦 / 𝑥⦌𝑀)‘𝑌)
170	58	eqcomi 2778	. . . . . . . . . 10 ⊢ (Base‘𝑆) = (Base‘𝑅)
171	50	ad3antrrr 742	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) ∧ 𝑦 ∈ 𝑏) → 𝑅 ∈ CRing)
172	64	ad3antrrr 742	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) ∧ 𝑦 ∈ 𝑏) → 𝑌 ∈ 𝐵)
173	59	eqcomi 2778	. . . . . . . . . . . . 13 ⊢ (Base‘𝑆) = 𝐵
174	173	a1i 11	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) ∧ 𝑦 ∈ 𝑏) → (Base‘𝑆) = 𝐵)
175	174	eleq2d 2855	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) ∧ 𝑦 ∈ 𝑏) → (𝑌 ∈ (Base‘𝑆) ↔ 𝑌 ∈ 𝐵))
176	172, 175	mpbird 260	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) ∧ 𝑦 ∈ 𝑏) → 𝑌 ∈ (Base‘𝑆))
177	45, 46, 170, 49, 171, 176, 115	fveval1fvcl 22461	. . . . . . . . 9 ⊢ ((((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) ∧ 𝑦 ∈ 𝑏) → ((𝑂‘⦋𝑦 / 𝑥⦌𝑀)‘𝑌) ∈ (Base‘𝑆))
178	169, 177	eqeltrid 2873	. . . . . . . 8 ⊢ ((((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) ∧ 𝑦 ∈ 𝑏) → ⦋𝑦 / 𝑥⦌((𝑂‘𝑀)‘𝑌) ∈ (Base‘𝑆))
179	45, 46, 47, 49, 136, 137, 129	fveval1fvcl 22461	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → ((𝑂‘⦋𝑐 / 𝑥⦌𝑀)‘𝑌) ∈ 𝐵)
180	179, 59	eleqtrdi 2879	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → ((𝑂‘⦋𝑐 / 𝑥⦌𝑀)‘𝑌) ∈ (Base‘𝑆))
181		nfcv 2931	. . . . . . . . 9 ⊢ Ⅎ𝑥𝑐
182		nfcv 2931	. . . . . . . . . . 11 ⊢ Ⅎ𝑥𝑂
183	181	nfcsb1 3884	. . . . . . . . . . 11 ⊢ Ⅎ𝑥⦋𝑐 / 𝑥⦌𝑀
184	182, 183	nffv 6892	. . . . . . . . . 10 ⊢ Ⅎ𝑥(𝑂‘⦋𝑐 / 𝑥⦌𝑀)
185	184, 166	nffv 6892	. . . . . . . . 9 ⊢ Ⅎ𝑥((𝑂‘⦋𝑐 / 𝑥⦌𝑀)‘𝑌)
186		csbeq1a 3875	. . . . . . . . . . 11 ⊢ (𝑥 = 𝑐 → 𝑀 = ⦋𝑐 / 𝑥⦌𝑀)
187	186	fveq2d 6886	. . . . . . . . . 10 ⊢ (𝑥 = 𝑐 → (𝑂‘𝑀) = (𝑂‘⦋𝑐 / 𝑥⦌𝑀))
188	187	fveq1d 6884	. . . . . . . . 9 ⊢ (𝑥 = 𝑐 → ((𝑂‘𝑀)‘𝑌) = ((𝑂‘⦋𝑐 / 𝑥⦌𝑀)‘𝑌))
189	181, 185, 188	csbhypf 3889	. . . . . . . 8 ⊢ (𝑦 = 𝑐 → ⦋𝑦 / 𝑥⦌((𝑂‘𝑀)‘𝑌) = ((𝑂‘⦋𝑐 / 𝑥⦌𝑀)‘𝑌))
190	54, 155, 161, 108, 178, 124, 125, 180, 189	gsumunsn 20029	. . . . . . 7 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → (𝑆 Σg (𝑦 ∈ (𝑏 ∪ {𝑐}) ↦ ⦋𝑦 / 𝑥⦌((𝑂‘𝑀)‘𝑌))) = ((𝑆 Σg (𝑦 ∈ 𝑏 ↦ ⦋𝑦 / 𝑥⦌((𝑂‘𝑀)‘𝑌)))(.r‘𝑅)((𝑂‘⦋𝑐 / 𝑥⦌𝑀)‘𝑌)))
191		simpr 489	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌))))
192		nfcv 2931	. . . . . . . . . . . 12 ⊢ Ⅎ𝑦((𝑂‘𝑀)‘𝑌)
193		nfcsb1v 3885	. . . . . . . . . . . 12 ⊢ Ⅎ𝑥⦋𝑦 / 𝑥⦌((𝑂‘𝑀)‘𝑌)
194		csbeq1a 3875	. . . . . . . . . . . 12 ⊢ (𝑥 = 𝑦 → ((𝑂‘𝑀)‘𝑌) = ⦋𝑦 / 𝑥⦌((𝑂‘𝑀)‘𝑌))
195	192, 193, 194	cbvmpt 5217	. . . . . . . . . . 11 ⊢ (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)) = (𝑦 ∈ 𝑏 ↦ ⦋𝑦 / 𝑥⦌((𝑂‘𝑀)‘𝑌))
196	195	a1i 11	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)) = (𝑦 ∈ 𝑏 ↦ ⦋𝑦 / 𝑥⦌((𝑂‘𝑀)‘𝑌)))
197	196	oveq2d 7427	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌))) = (𝑆 Σg (𝑦 ∈ 𝑏 ↦ ⦋𝑦 / 𝑥⦌((𝑂‘𝑀)‘𝑌))))
198	191, 197	eqtr2d 2805	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → (𝑆 Σg (𝑦 ∈ 𝑏 ↦ ⦋𝑦 / 𝑥⦌((𝑂‘𝑀)‘𝑌))) = ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌))
199	198	oveq1d 7426	. . . . . . 7 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → ((𝑆 Σg (𝑦 ∈ 𝑏 ↦ ⦋𝑦 / 𝑥⦌((𝑂‘𝑀)‘𝑌)))(.r‘𝑅)((𝑂‘⦋𝑐 / 𝑥⦌𝑀)‘𝑌)) = (((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌)(.r‘𝑅)((𝑂‘⦋𝑐 / 𝑥⦌𝑀)‘𝑌)))
200	190, 199	eqtrd 2804	. . . . . 6 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → (𝑆 Σg (𝑦 ∈ (𝑏 ∪ {𝑐}) ↦ ⦋𝑦 / 𝑥⦌((𝑂‘𝑀)‘𝑌))) = (((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌)(.r‘𝑅)((𝑂‘⦋𝑐 / 𝑥⦌𝑀)‘𝑌)))
201	200	eqcomd 2775	. . . . 5 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → (((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌)(.r‘𝑅)((𝑂‘⦋𝑐 / 𝑥⦌𝑀)‘𝑌)) = (𝑆 Σg (𝑦 ∈ (𝑏 ∪ {𝑐}) ↦ ⦋𝑦 / 𝑥⦌((𝑂‘𝑀)‘𝑌))))
202	154, 201	eqtrd 2804	. . . 4 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → ((𝑂‘(𝑄 Σg (𝑥 ∈ (𝑏 ∪ {𝑐}) ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑦 ∈ (𝑏 ∪ {𝑐}) ↦ ⦋𝑦 / 𝑥⦌((𝑂‘𝑀)‘𝑌))))
203	192, 193, 194	cbvmpt 5217	. . . . . . 7 ⊢ (𝑥 ∈ (𝑏 ∪ {𝑐}) ↦ ((𝑂‘𝑀)‘𝑌)) = (𝑦 ∈ (𝑏 ∪ {𝑐}) ↦ ⦋𝑦 / 𝑥⦌((𝑂‘𝑀)‘𝑌))
204	203	eqcomi 2778	. . . . . 6 ⊢ (𝑦 ∈ (𝑏 ∪ {𝑐}) ↦ ⦋𝑦 / 𝑥⦌((𝑂‘𝑀)‘𝑌)) = (𝑥 ∈ (𝑏 ∪ {𝑐}) ↦ ((𝑂‘𝑀)‘𝑌))
205	204	a1i 11	. . . . 5 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → (𝑦 ∈ (𝑏 ∪ {𝑐}) ↦ ⦋𝑦 / 𝑥⦌((𝑂‘𝑀)‘𝑌)) = (𝑥 ∈ (𝑏 ∪ {𝑐}) ↦ ((𝑂‘𝑀)‘𝑌)))
206	205	oveq2d 7427	. . . 4 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → (𝑆 Σg (𝑦 ∈ (𝑏 ∪ {𝑐}) ↦ ⦋𝑦 / 𝑥⦌((𝑂‘𝑀)‘𝑌))) = (𝑆 Σg (𝑥 ∈ (𝑏 ∪ {𝑐}) ↦ ((𝑂‘𝑀)‘𝑌))))
207	202, 206	eqtrd 2804	. . 3 ⊢ (((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) ∧ ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌)))) → ((𝑂‘(𝑄 Σg (𝑥 ∈ (𝑏 ∪ {𝑐}) ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ (𝑏 ∪ {𝑐}) ↦ ((𝑂‘𝑀)‘𝑌))))
208	207	ex 417	. 2 ⊢ ((𝜑 ∧ (𝑏 ⊆ 𝑁 ∧ 𝑐 ∈ (𝑁 ∖ 𝑏))) → (((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑏 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑏 ↦ ((𝑂‘𝑀)‘𝑌))) → ((𝑂‘(𝑄 Σg (𝑥 ∈ (𝑏 ∪ {𝑐}) ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ (𝑏 ∪ {𝑐}) ↦ ((𝑂‘𝑀)‘𝑌)))))
209	7, 14, 21, 28, 87, 208, 105	findcard2d 9150	1 ⊢ (𝜑 → ((𝑂‘(𝑄 Σg (𝑥 ∈ 𝑁 ↦ 𝑀)))‘𝑌) = (𝑆 Σg (𝑥 ∈ 𝑁 ↦ ((𝑂‘𝑀)‘𝑌))))

Syntax hints:   → wi 4   ∧ wa 400   = wceq 1567   ∈ wcel 2149  ∀wral 3085  Vcvv 3463  ⦋csb 3861   ∖ cdif 3910   ∪ cun 3911   ⊆ wss 3913  ∅c0 4294  {csn 4594   ↦ cmpt 5196  ‘cfv 6537  (class class class)co 7411  Fincfn 8942  Basecbs 17268  ._rcmulr 17310  0_gc0g 17491   Σ_g cgsu 17492  Mndcmnd 18791  CMndccmn 19849  mulGrpcmgp 20215  1_rcur 20262  Ringcrg 20314  CRingccrg 20315  algSccascl 21970  Poly₁cpl1 22305  eval₁ce1 22442

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1822  ax-4 1836  ax-5 1937  ax-6 1994  ax-7 2035  ax-8 2151  ax-9 2159  ax-10 2182  ax-11 2198  ax-12 2219  ax-ext 2741  ax-rep 5242  ax-sep 5261  ax-nul 5271  ax-pow 5337  ax-pr 5405  ax-un 7733  ax-cnex 11155  ax-resscn 11156  ax-1cn 11157  ax-icn 11158  ax-addcl 11159  ax-addrcl 11160  ax-mulcl 11161  ax-mulrcl 11162  ax-mulcom 11163  ax-addass 11164  ax-mulass 11165  ax-distr 11166  ax-i2m1 11167  ax-1ne0 11168  ax-1rid 11169  ax-rnegex 11170  ax-rrecex 11171  ax-cnre 11172  ax-pre-lttri 11173  ax-pre-lttrn 11174  ax-pre-ltadd 11175  ax-pre-mulgt0 11176

This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3or 1102  df-3an 1103  df-tru 1570  df-fal 1580  df-ex 1807  df-nf 1811  df-sb 2098  df-mo 2573  df-eu 2603  df-clab 2748  df-cleq 2761  df-clel 2844  df-nfc 2918  df-ne 2965  df-nel 3071  df-ral 3086  df-rex 3096  df-rmo 3376  df-reu 3377  df-rab 3424  df-v 3465  df-sbc 3754  df-csb 3862  df-dif 3916  df-un 3918  df-in 3920  df-ss 3930  df-pss 3933  df-nul 4295  df-if 4493  df-pw 4569  df-sn 4595  df-pr 4597  df-tp 4599  df-op 4601  df-uni 4877  df-int 4917  df-iun 4962  df-iin 4963  df-br 5114  df-opab 5178  df-mpt 5197  df-tr 5223  df-id 5557  df-eprel 5562  df-po 5570  df-so 5571  df-fr 5615  df-se 5616  df-we 5617  df-xp 5668  df-rel 5669  df-cnv 5670  df-co 5671  df-dm 5672  df-rn 5673  df-res 5674  df-ima 5675  df-pred 6303  df-ord 6364  df-on 6365  df-lim 6366  df-suc 6367  df-iota 6493  df-fun 6539  df-fn 6540  df-f 6541  df-f1 6542  df-fo 6543  df-f1o 6544  df-fv 6545  df-isom 6546  df-riota 7368  df-ov 7414  df-oprab 7415  df-mpo 7416  df-of 7675  df-ofr 7676  df-om 7862  df-1st 7985  df-2nd 7986  df-supp 8156  df-frecs 8277  df-wrecs 8308  df-recs 8357  df-rdg 8396  df-1o 8452  df-2o 8453  df-er 8693  df-map 8825  df-pm 8826  df-ixp 8895  df-en 8943  df-dom 8944  df-sdom 8945  df-fin 8946  df-fsupp 9321  df-sup 9401  df-oi 9471  df-card 9924  df-pnf 11244  df-mnf 11245  df-xr 11246  df-ltxr 11247  df-le 11248  df-sub 11442  df-neg 11443  df-nn 12233  df-2 12302  df-3 12303  df-4 12304  df-5 12305  df-6 12306  df-7 12307  df-8 12308  df-9 12309  df-n0 12504  df-z 12591  df-dec 12711  df-uz 12862  df-fz 13535  df-fzo 13682  df-seq 14037  df-hash 14366  df-struct 17206  df-sets 17223  df-slot 17241  df-ndx 17253  df-base 17269  df-ress 17290  df-plusg 17322  df-mulr 17323  df-sca 17325  df-vsca 17326  df-ip 17327  df-tset 17328  df-ple 17329  df-ds 17331  df-hom 17333  df-cco 17334  df-0g 17493  df-gsum 17494  df-prds 17499  df-pws 17501  df-mre 17637  df-mrc 17638  df-acs 17640  df-mgm 18697  df-sgrp 18776  df-mnd 18792  df-mhm 18840  df-submnd 18841  df-grp 19002  df-minusg 19003  df-sbg 19004  df-mulg 19133  df-subg 19188  df-ghm 19283  df-cntz 19386  df-cmn 19851  df-abl 19852  df-mgp 20216  df-rng 20230  df-ur 20263  df-srg 20268  df-ring 20316  df-cring 20317  df-rhm 20553  df-subrng 20630  df-subrg 20654  df-lmod 20960  df-lss 21030  df-lsp 21070  df-assa 21971  df-asp 21972  df-ascl 21973  df-psr 22027  df-mvr 22028  df-mpl 22029  df-opsr 22031  df-evls 22193  df-evl 22194  df-psr1 22308  df-ply1 22310  df-evl1 22444

This theorem is referenced by:  aks6d1c5lem2  42794