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Theorem mdetrlin 22095

Description: The determinant function is additive for each row: The matrices X, Y, Z are identical except for the I's row, and the I's row of the matrix X is the componentwise sum of the I's row of the matrices Y and Z. In this case the determinant of X is the sum of the determinants of Y and Z. (Contributed by SO, 9-Jul-2018.) (Proof shortened by AV, 23-Jul-2019.)

**Hypotheses**
Ref	Expression
mdetrlin.d	⊢ 𝐷 = (𝑁 maDet 𝑅)
mdetrlin.a	⊢ 𝐴 = (𝑁 Mat 𝑅)
mdetrlin.b	⊢ 𝐵 = (Base‘𝐴)
mdetrlin.p	⊢ + = (+_g‘𝑅)
mdetrlin.r	⊢ (𝜑 → 𝑅 ∈ CRing)
mdetrlin.x	⊢ (𝜑 → 𝑋 ∈ 𝐵)
mdetrlin.y	⊢ (𝜑 → 𝑌 ∈ 𝐵)
mdetrlin.z	⊢ (𝜑 → 𝑍 ∈ 𝐵)
mdetrlin.i	⊢ (𝜑 → 𝐼 ∈ 𝑁)
mdetrlin.eq	⊢ (𝜑 → (𝑋 ↾ ({𝐼} × 𝑁)) = ((𝑌 ↾ ({𝐼} × 𝑁)) ∘_f + (𝑍 ↾ ({𝐼} × 𝑁))))
mdetrlin.ne1	⊢ (𝜑 → (𝑋 ↾ ((𝑁 ∖ {𝐼}) × 𝑁)) = (𝑌 ↾ ((𝑁 ∖ {𝐼}) × 𝑁)))
mdetrlin.ne2	⊢ (𝜑 → (𝑋 ↾ ((𝑁 ∖ {𝐼}) × 𝑁)) = (𝑍 ↾ ((𝑁 ∖ {𝐼}) × 𝑁)))

**Assertion**
Ref	Expression
mdetrlin	⊢ (𝜑 → (𝐷‘𝑋) = ((𝐷‘𝑌) + (𝐷‘𝑍)))

Proof of Theorem mdetrlin Dummy variables 𝑝 𝑟 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		fvex 6901	. . . . . 6 ⊢ (Base‘(SymGrp‘𝑁)) ∈ V
2		ovex 7438	. . . . . . 7 ⊢ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟))))) ∈ V
3		eqid 2732	. . . . . . 7 ⊢ (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟)))))) = (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟))))))
4	2, 3	fnmpti 6690	. . . . . 6 ⊢ (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟)))))) Fn (Base‘(SymGrp‘𝑁))
5		ovex 7438	. . . . . . 7 ⊢ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟))))) ∈ V
6		eqid 2732	. . . . . . 7 ⊢ (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟)))))) = (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟))))))
7	5, 6	fnmpti 6690	. . . . . 6 ⊢ (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟)))))) Fn (Base‘(SymGrp‘𝑁))
8		ofmpteq 7688	. . . . . 6 ⊢ (((Base‘(SymGrp‘𝑁)) ∈ V ∧ (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟)))))) Fn (Base‘(SymGrp‘𝑁)) ∧ (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟)))))) Fn (Base‘(SymGrp‘𝑁))) → ((𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟)))))) ∘_f + (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟))))))) = (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ (((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟))))) + ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟))))))))
9	1, 4, 7, 8	mp3an 1461	. . . . 5 ⊢ ((𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟)))))) ∘_f + (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟))))))) = (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ (((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟))))) + ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟)))))))
10		mdetrlin.r	. . . . . . . . . 10 ⊢ (𝜑 → 𝑅 ∈ CRing)
11		crngring 20061	. . . . . . . . . 10 ⊢ (𝑅 ∈ CRing → 𝑅 ∈ Ring)
12	10, 11	syl 17	. . . . . . . . 9 ⊢ (𝜑 → 𝑅 ∈ Ring)
13	12	adantr 481	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → 𝑅 ∈ Ring)
14		mdetrlin.y	. . . . . . . . . . . . 13 ⊢ (𝜑 → 𝑌 ∈ 𝐵)
15		mdetrlin.a	. . . . . . . . . . . . . 14 ⊢ 𝐴 = (𝑁 Mat 𝑅)
16		mdetrlin.b	. . . . . . . . . . . . . 14 ⊢ 𝐵 = (Base‘𝐴)
17	15, 16	matrcl 21903	. . . . . . . . . . . . 13 ⊢ (𝑌 ∈ 𝐵 → (𝑁 ∈ Fin ∧ 𝑅 ∈ V))
18	14, 17	syl 17	. . . . . . . . . . . 12 ⊢ (𝜑 → (𝑁 ∈ Fin ∧ 𝑅 ∈ V))
19	18	simpld 495	. . . . . . . . . . 11 ⊢ (𝜑 → 𝑁 ∈ Fin)
20		zrhpsgnmhm 21128	. . . . . . . . . . 11 ⊢ ((𝑅 ∈ Ring ∧ 𝑁 ∈ Fin) → ((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁)) ∈ ((SymGrp‘𝑁) MndHom (mulGrp‘𝑅)))
21	12, 19, 20	syl2anc 584	. . . . . . . . . 10 ⊢ (𝜑 → ((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁)) ∈ ((SymGrp‘𝑁) MndHom (mulGrp‘𝑅)))
22		eqid 2732	. . . . . . . . . . 11 ⊢ (Base‘(SymGrp‘𝑁)) = (Base‘(SymGrp‘𝑁))
23		eqid 2732	. . . . . . . . . . . 12 ⊢ (mulGrp‘𝑅) = (mulGrp‘𝑅)
24		eqid 2732	. . . . . . . . . . . 12 ⊢ (Base‘𝑅) = (Base‘𝑅)
25	23, 24	mgpbas 19987	. . . . . . . . . . 11 ⊢ (Base‘𝑅) = (Base‘(mulGrp‘𝑅))
26	22, 25	mhmf 18673	. . . . . . . . . 10 ⊢ (((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁)) ∈ ((SymGrp‘𝑁) MndHom (mulGrp‘𝑅)) → ((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁)):(Base‘(SymGrp‘𝑁))⟶(Base‘𝑅))
27	21, 26	syl 17	. . . . . . . . 9 ⊢ (𝜑 → ((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁)):(Base‘(SymGrp‘𝑁))⟶(Base‘𝑅))
28	27	ffvelcdmda 7083	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝) ∈ (Base‘𝑅))
29	23	crngmgp 20057	. . . . . . . . . . 11 ⊢ (𝑅 ∈ CRing → (mulGrp‘𝑅) ∈ CMnd)
30	10, 29	syl 17	. . . . . . . . . 10 ⊢ (𝜑 → (mulGrp‘𝑅) ∈ CMnd)
31	30	adantr 481	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (mulGrp‘𝑅) ∈ CMnd)
32	19	adantr 481	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → 𝑁 ∈ Fin)
33	15, 24, 16	matbas2i 21915	. . . . . . . . . . . . 13 ⊢ (𝑌 ∈ 𝐵 → 𝑌 ∈ ((Base‘𝑅) ↑_m (𝑁 × 𝑁)))
34		elmapi 8839	. . . . . . . . . . . . 13 ⊢ (𝑌 ∈ ((Base‘𝑅) ↑_m (𝑁 × 𝑁)) → 𝑌:(𝑁 × 𝑁)⟶(Base‘𝑅))
35	14, 33, 34	3syl 18	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝑌:(𝑁 × 𝑁)⟶(Base‘𝑅))
36	35	ad2antrr 724	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) ∧ 𝑟 ∈ 𝑁) → 𝑌:(𝑁 × 𝑁)⟶(Base‘𝑅))
37		simpr 485	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) ∧ 𝑟 ∈ 𝑁) → 𝑟 ∈ 𝑁)
38		eqid 2732	. . . . . . . . . . . . . 14 ⊢ (SymGrp‘𝑁) = (SymGrp‘𝑁)
39	38, 22	symgbasf 19237	. . . . . . . . . . . . 13 ⊢ (𝑝 ∈ (Base‘(SymGrp‘𝑁)) → 𝑝:𝑁⟶𝑁)
40	39	adantl 482	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → 𝑝:𝑁⟶𝑁)
41	40	ffvelcdmda 7083	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) ∧ 𝑟 ∈ 𝑁) → (𝑝‘𝑟) ∈ 𝑁)
42	36, 37, 41	fovcdmd 7575	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) ∧ 𝑟 ∈ 𝑁) → (𝑟𝑌(𝑝‘𝑟)) ∈ (Base‘𝑅))
43	42	ralrimiva 3146	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ∀𝑟 ∈ 𝑁 (𝑟𝑌(𝑝‘𝑟)) ∈ (Base‘𝑅))
44	25, 31, 32, 43	gsummptcl 19829	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟)))) ∈ (Base‘𝑅))
45		mdetrlin.z	. . . . . . . . . . . . 13 ⊢ (𝜑 → 𝑍 ∈ 𝐵)
46	15, 24, 16	matbas2i 21915	. . . . . . . . . . . . 13 ⊢ (𝑍 ∈ 𝐵 → 𝑍 ∈ ((Base‘𝑅) ↑_m (𝑁 × 𝑁)))
47		elmapi 8839	. . . . . . . . . . . . 13 ⊢ (𝑍 ∈ ((Base‘𝑅) ↑_m (𝑁 × 𝑁)) → 𝑍:(𝑁 × 𝑁)⟶(Base‘𝑅))
48	45, 46, 47	3syl 18	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝑍:(𝑁 × 𝑁)⟶(Base‘𝑅))
49	48	ad2antrr 724	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) ∧ 𝑟 ∈ 𝑁) → 𝑍:(𝑁 × 𝑁)⟶(Base‘𝑅))
50	49, 37, 41	fovcdmd 7575	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) ∧ 𝑟 ∈ 𝑁) → (𝑟𝑍(𝑝‘𝑟)) ∈ (Base‘𝑅))
51	50	ralrimiva 3146	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ∀𝑟 ∈ 𝑁 (𝑟𝑍(𝑝‘𝑟)) ∈ (Base‘𝑅))
52	25, 31, 32, 51	gsummptcl 19829	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟)))) ∈ (Base‘𝑅))
53		mdetrlin.p	. . . . . . . . 9 ⊢ + = (+_g‘𝑅)
54		eqid 2732	. . . . . . . . 9 ⊢ (._r‘𝑅) = (._r‘𝑅)
55	24, 53, 54	ringdi 20074	. . . . . . . 8 ⊢ ((𝑅 ∈ Ring ∧ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝) ∈ (Base‘𝑅) ∧ ((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟)))) ∈ (Base‘𝑅) ∧ ((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟)))) ∈ (Base‘𝑅))) → ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)(((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟)))) + ((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟)))))) = (((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟))))) + ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟)))))))
56	13, 28, 44, 52, 55	syl13anc 1372	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)(((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟)))) + ((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟)))))) = (((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟))))) + ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟)))))))
57		cmnmnd 19659	. . . . . . . . . . . . 13 ⊢ ((mulGrp‘𝑅) ∈ CMnd → (mulGrp‘𝑅) ∈ Mnd)
58	31, 57	syl 17	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (mulGrp‘𝑅) ∈ Mnd)
59		mdetrlin.i	. . . . . . . . . . . . 13 ⊢ (𝜑 → 𝐼 ∈ 𝑁)
60	59	adantr 481	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → 𝐼 ∈ 𝑁)
61	35	adantr 481	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → 𝑌:(𝑁 × 𝑁)⟶(Base‘𝑅))
62	40, 60	ffvelcdmd 7084	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (𝑝‘𝐼) ∈ 𝑁)
63	61, 60, 62	fovcdmd 7575	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (𝐼𝑌(𝑝‘𝐼)) ∈ (Base‘𝑅))
64		id 22	. . . . . . . . . . . . . 14 ⊢ (𝑟 = 𝐼 → 𝑟 = 𝐼)
65		fveq2 6888	. . . . . . . . . . . . . 14 ⊢ (𝑟 = 𝐼 → (𝑝‘𝑟) = (𝑝‘𝐼))
66	64, 65	oveq12d 7423	. . . . . . . . . . . . 13 ⊢ (𝑟 = 𝐼 → (𝑟𝑌(𝑝‘𝑟)) = (𝐼𝑌(𝑝‘𝐼)))
67	25, 66	gsumsn 19816	. . . . . . . . . . . 12 ⊢ (((mulGrp‘𝑅) ∈ Mnd ∧ 𝐼 ∈ 𝑁 ∧ (𝐼𝑌(𝑝‘𝐼)) ∈ (Base‘𝑅)) → ((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑌(𝑝‘𝑟)))) = (𝐼𝑌(𝑝‘𝐼)))
68	58, 60, 63, 67	syl3anc 1371	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑌(𝑝‘𝑟)))) = (𝐼𝑌(𝑝‘𝐼)))
69	68, 63	eqeltrd 2833	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑌(𝑝‘𝑟)))) ∈ (Base‘𝑅))
70	48	adantr 481	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → 𝑍:(𝑁 × 𝑁)⟶(Base‘𝑅))
71	70, 60, 62	fovcdmd 7575	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (𝐼𝑍(𝑝‘𝐼)) ∈ (Base‘𝑅))
72	64, 65	oveq12d 7423	. . . . . . . . . . . . 13 ⊢ (𝑟 = 𝐼 → (𝑟𝑍(𝑝‘𝑟)) = (𝐼𝑍(𝑝‘𝐼)))
73	25, 72	gsumsn 19816	. . . . . . . . . . . 12 ⊢ (((mulGrp‘𝑅) ∈ Mnd ∧ 𝐼 ∈ 𝑁 ∧ (𝐼𝑍(𝑝‘𝐼)) ∈ (Base‘𝑅)) → ((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑍(𝑝‘𝑟)))) = (𝐼𝑍(𝑝‘𝐼)))
74	58, 60, 71, 73	syl3anc 1371	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑍(𝑝‘𝑟)))) = (𝐼𝑍(𝑝‘𝐼)))
75	74, 71	eqeltrd 2833	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑍(𝑝‘𝑟)))) ∈ (Base‘𝑅))
76		difssd 4131	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (𝑁 ∖ {𝐼}) ⊆ 𝑁)
77	32, 76	ssfid 9263	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (𝑁 ∖ {𝐼}) ∈ Fin)
78		eldifi 4125	. . . . . . . . . . . . 13 ⊢ (𝑟 ∈ (𝑁 ∖ {𝐼}) → 𝑟 ∈ 𝑁)
79		mdetrlin.x	. . . . . . . . . . . . . . . 16 ⊢ (𝜑 → 𝑋 ∈ 𝐵)
80	15, 24, 16	matbas2i 21915	. . . . . . . . . . . . . . . 16 ⊢ (𝑋 ∈ 𝐵 → 𝑋 ∈ ((Base‘𝑅) ↑_m (𝑁 × 𝑁)))
81		elmapi 8839	. . . . . . . . . . . . . . . 16 ⊢ (𝑋 ∈ ((Base‘𝑅) ↑_m (𝑁 × 𝑁)) → 𝑋:(𝑁 × 𝑁)⟶(Base‘𝑅))
82	79, 80, 81	3syl 18	. . . . . . . . . . . . . . 15 ⊢ (𝜑 → 𝑋:(𝑁 × 𝑁)⟶(Base‘𝑅))
83	82	ad2antrr 724	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) ∧ 𝑟 ∈ 𝑁) → 𝑋:(𝑁 × 𝑁)⟶(Base‘𝑅))
84	83, 37, 41	fovcdmd 7575	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) ∧ 𝑟 ∈ 𝑁) → (𝑟𝑋(𝑝‘𝑟)) ∈ (Base‘𝑅))
85	78, 84	sylan2 593	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) ∧ 𝑟 ∈ (𝑁 ∖ {𝐼})) → (𝑟𝑋(𝑝‘𝑟)) ∈ (Base‘𝑅))
86	85	ralrimiva 3146	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ∀𝑟 ∈ (𝑁 ∖ {𝐼})(𝑟𝑋(𝑝‘𝑟)) ∈ (Base‘𝑅))
87	25, 31, 77, 86	gsummptcl 19829	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ((mulGrp‘𝑅) Σ_g (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑋(𝑝‘𝑟)))) ∈ (Base‘𝑅))
88	24, 53, 54	ringdir 20075	. . . . . . . . . 10 ⊢ ((𝑅 ∈ Ring ∧ (((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑌(𝑝‘𝑟)))) ∈ (Base‘𝑅) ∧ ((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑍(𝑝‘𝑟)))) ∈ (Base‘𝑅) ∧ ((mulGrp‘𝑅) Σ_g (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑋(𝑝‘𝑟)))) ∈ (Base‘𝑅))) → ((((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑌(𝑝‘𝑟)))) + ((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑍(𝑝‘𝑟)))))(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑋(𝑝‘𝑟))))) = ((((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑌(𝑝‘𝑟))))(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑋(𝑝‘𝑟))))) + (((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑍(𝑝‘𝑟))))(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑋(𝑝‘𝑟)))))))
89	13, 69, 75, 87, 88	syl13anc 1372	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ((((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑌(𝑝‘𝑟)))) + ((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑍(𝑝‘𝑟)))))(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑋(𝑝‘𝑟))))) = ((((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑌(𝑝‘𝑟))))(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑋(𝑝‘𝑟))))) + (((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑍(𝑝‘𝑟))))(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑋(𝑝‘𝑟)))))))
90	23, 54	mgpplusg 19985	. . . . . . . . . . 11 ⊢ (._r‘𝑅) = (+_g‘(mulGrp‘𝑅))
91		disjdif 4470	. . . . . . . . . . . 12 ⊢ ({𝐼} ∩ (𝑁 ∖ {𝐼})) = ∅
92	91	a1i 11	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ({𝐼} ∩ (𝑁 ∖ {𝐼})) = ∅)
93	59	snssd 4811	. . . . . . . . . . . . . 14 ⊢ (𝜑 → {𝐼} ⊆ 𝑁)
94	93	adantr 481	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → {𝐼} ⊆ 𝑁)
95		undif 4480	. . . . . . . . . . . . 13 ⊢ ({𝐼} ⊆ 𝑁 ↔ ({𝐼} ∪ (𝑁 ∖ {𝐼})) = 𝑁)
96	94, 95	sylib 217	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ({𝐼} ∪ (𝑁 ∖ {𝐼})) = 𝑁)
97	96	eqcomd 2738	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → 𝑁 = ({𝐼} ∪ (𝑁 ∖ {𝐼})))
98	25, 90, 31, 32, 84, 92, 97	gsummptfidmsplit 19792	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑋(𝑝‘𝑟)))) = (((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑋(𝑝‘𝑟))))(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑋(𝑝‘𝑟))))))
99		mdetrlin.eq	. . . . . . . . . . . . . . . 16 ⊢ (𝜑 → (𝑋 ↾ ({𝐼} × 𝑁)) = ((𝑌 ↾ ({𝐼} × 𝑁)) ∘_f + (𝑍 ↾ ({𝐼} × 𝑁))))
100	99	adantr 481	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (𝑋 ↾ ({𝐼} × 𝑁)) = ((𝑌 ↾ ({𝐼} × 𝑁)) ∘_f + (𝑍 ↾ ({𝐼} × 𝑁))))
101	100	oveqd 7422	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (𝐼(𝑋 ↾ ({𝐼} × 𝑁))(𝑝‘𝐼)) = (𝐼((𝑌 ↾ ({𝐼} × 𝑁)) ∘_f + (𝑍 ↾ ({𝐼} × 𝑁)))(𝑝‘𝐼)))
102		xpss1 5694	. . . . . . . . . . . . . . . . . . 19 ⊢ ({𝐼} ⊆ 𝑁 → ({𝐼} × 𝑁) ⊆ (𝑁 × 𝑁))
103	94, 102	syl 17	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ({𝐼} × 𝑁) ⊆ (𝑁 × 𝑁))
104	61, 103	fssresd 6755	. . . . . . . . . . . . . . . . 17 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (𝑌 ↾ ({𝐼} × 𝑁)):({𝐼} × 𝑁)⟶(Base‘𝑅))
105	104	ffnd 6715	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (𝑌 ↾ ({𝐼} × 𝑁)) Fn ({𝐼} × 𝑁))
106	70, 103	fssresd 6755	. . . . . . . . . . . . . . . . 17 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (𝑍 ↾ ({𝐼} × 𝑁)):({𝐼} × 𝑁)⟶(Base‘𝑅))
107	106	ffnd 6715	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (𝑍 ↾ ({𝐼} × 𝑁)) Fn ({𝐼} × 𝑁))
108		snex 5430	. . . . . . . . . . . . . . . . 17 ⊢ {𝐼} ∈ V
109		xpexg 7733	. . . . . . . . . . . . . . . . 17 ⊢ (({𝐼} ∈ V ∧ 𝑁 ∈ Fin) → ({𝐼} × 𝑁) ∈ V)
110	108, 32, 109	sylancr 587	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ({𝐼} × 𝑁) ∈ V)
111		snidg 4661	. . . . . . . . . . . . . . . . . 18 ⊢ (𝐼 ∈ 𝑁 → 𝐼 ∈ {𝐼})
112	60, 111	syl 17	. . . . . . . . . . . . . . . . 17 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → 𝐼 ∈ {𝐼})
113	112, 62	opelxpd 5713	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ⟨𝐼, (𝑝‘𝐼)⟩ ∈ ({𝐼} × 𝑁))
114		fnfvof 7683	. . . . . . . . . . . . . . . 16 ⊢ ((((𝑌 ↾ ({𝐼} × 𝑁)) Fn ({𝐼} × 𝑁) ∧ (𝑍 ↾ ({𝐼} × 𝑁)) Fn ({𝐼} × 𝑁)) ∧ (({𝐼} × 𝑁) ∈ V ∧ ⟨𝐼, (𝑝‘𝐼)⟩ ∈ ({𝐼} × 𝑁))) → (((𝑌 ↾ ({𝐼} × 𝑁)) ∘_f + (𝑍 ↾ ({𝐼} × 𝑁)))‘⟨𝐼, (𝑝‘𝐼)⟩) = (((𝑌 ↾ ({𝐼} × 𝑁))‘⟨𝐼, (𝑝‘𝐼)⟩) + ((𝑍 ↾ ({𝐼} × 𝑁))‘⟨𝐼, (𝑝‘𝐼)⟩)))
115	105, 107, 110, 113, 114	syl22anc 837	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (((𝑌 ↾ ({𝐼} × 𝑁)) ∘_f + (𝑍 ↾ ({𝐼} × 𝑁)))‘⟨𝐼, (𝑝‘𝐼)⟩) = (((𝑌 ↾ ({𝐼} × 𝑁))‘⟨𝐼, (𝑝‘𝐼)⟩) + ((𝑍 ↾ ({𝐼} × 𝑁))‘⟨𝐼, (𝑝‘𝐼)⟩)))
116		df-ov 7408	. . . . . . . . . . . . . . 15 ⊢ (𝐼((𝑌 ↾ ({𝐼} × 𝑁)) ∘_f + (𝑍 ↾ ({𝐼} × 𝑁)))(𝑝‘𝐼)) = (((𝑌 ↾ ({𝐼} × 𝑁)) ∘_f + (𝑍 ↾ ({𝐼} × 𝑁)))‘⟨𝐼, (𝑝‘𝐼)⟩)
117		df-ov 7408	. . . . . . . . . . . . . . . 16 ⊢ (𝐼(𝑌 ↾ ({𝐼} × 𝑁))(𝑝‘𝐼)) = ((𝑌 ↾ ({𝐼} × 𝑁))‘⟨𝐼, (𝑝‘𝐼)⟩)
118		df-ov 7408	. . . . . . . . . . . . . . . 16 ⊢ (𝐼(𝑍 ↾ ({𝐼} × 𝑁))(𝑝‘𝐼)) = ((𝑍 ↾ ({𝐼} × 𝑁))‘⟨𝐼, (𝑝‘𝐼)⟩)
119	117, 118	oveq12i 7417	. . . . . . . . . . . . . . 15 ⊢ ((𝐼(𝑌 ↾ ({𝐼} × 𝑁))(𝑝‘𝐼)) + (𝐼(𝑍 ↾ ({𝐼} × 𝑁))(𝑝‘𝐼))) = (((𝑌 ↾ ({𝐼} × 𝑁))‘⟨𝐼, (𝑝‘𝐼)⟩) + ((𝑍 ↾ ({𝐼} × 𝑁))‘⟨𝐼, (𝑝‘𝐼)⟩))
120	115, 116, 119	3eqtr4g 2797	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (𝐼((𝑌 ↾ ({𝐼} × 𝑁)) ∘_f + (𝑍 ↾ ({𝐼} × 𝑁)))(𝑝‘𝐼)) = ((𝐼(𝑌 ↾ ({𝐼} × 𝑁))(𝑝‘𝐼)) + (𝐼(𝑍 ↾ ({𝐼} × 𝑁))(𝑝‘𝐼))))
121	101, 120	eqtrd 2772	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (𝐼(𝑋 ↾ ({𝐼} × 𝑁))(𝑝‘𝐼)) = ((𝐼(𝑌 ↾ ({𝐼} × 𝑁))(𝑝‘𝐼)) + (𝐼(𝑍 ↾ ({𝐼} × 𝑁))(𝑝‘𝐼))))
122		ovres 7569	. . . . . . . . . . . . . 14 ⊢ ((𝐼 ∈ {𝐼} ∧ (𝑝‘𝐼) ∈ 𝑁) → (𝐼(𝑋 ↾ ({𝐼} × 𝑁))(𝑝‘𝐼)) = (𝐼𝑋(𝑝‘𝐼)))
123	112, 62, 122	syl2anc 584	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (𝐼(𝑋 ↾ ({𝐼} × 𝑁))(𝑝‘𝐼)) = (𝐼𝑋(𝑝‘𝐼)))
124		ovres 7569	. . . . . . . . . . . . . . 15 ⊢ ((𝐼 ∈ {𝐼} ∧ (𝑝‘𝐼) ∈ 𝑁) → (𝐼(𝑌 ↾ ({𝐼} × 𝑁))(𝑝‘𝐼)) = (𝐼𝑌(𝑝‘𝐼)))
125	112, 62, 124	syl2anc 584	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (𝐼(𝑌 ↾ ({𝐼} × 𝑁))(𝑝‘𝐼)) = (𝐼𝑌(𝑝‘𝐼)))
126		ovres 7569	. . . . . . . . . . . . . . 15 ⊢ ((𝐼 ∈ {𝐼} ∧ (𝑝‘𝐼) ∈ 𝑁) → (𝐼(𝑍 ↾ ({𝐼} × 𝑁))(𝑝‘𝐼)) = (𝐼𝑍(𝑝‘𝐼)))
127	112, 62, 126	syl2anc 584	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (𝐼(𝑍 ↾ ({𝐼} × 𝑁))(𝑝‘𝐼)) = (𝐼𝑍(𝑝‘𝐼)))
128	125, 127	oveq12d 7423	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ((𝐼(𝑌 ↾ ({𝐼} × 𝑁))(𝑝‘𝐼)) + (𝐼(𝑍 ↾ ({𝐼} × 𝑁))(𝑝‘𝐼))) = ((𝐼𝑌(𝑝‘𝐼)) + (𝐼𝑍(𝑝‘𝐼))))
129	121, 123, 128	3eqtr3d 2780	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (𝐼𝑋(𝑝‘𝐼)) = ((𝐼𝑌(𝑝‘𝐼)) + (𝐼𝑍(𝑝‘𝐼))))
130	82	adantr 481	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → 𝑋:(𝑁 × 𝑁)⟶(Base‘𝑅))
131	130, 60, 62	fovcdmd 7575	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (𝐼𝑋(𝑝‘𝐼)) ∈ (Base‘𝑅))
132	64, 65	oveq12d 7423	. . . . . . . . . . . . . 14 ⊢ (𝑟 = 𝐼 → (𝑟𝑋(𝑝‘𝑟)) = (𝐼𝑋(𝑝‘𝐼)))
133	25, 132	gsumsn 19816	. . . . . . . . . . . . 13 ⊢ (((mulGrp‘𝑅) ∈ Mnd ∧ 𝐼 ∈ 𝑁 ∧ (𝐼𝑋(𝑝‘𝐼)) ∈ (Base‘𝑅)) → ((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑋(𝑝‘𝑟)))) = (𝐼𝑋(𝑝‘𝐼)))
134	58, 60, 131, 133	syl3anc 1371	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑋(𝑝‘𝑟)))) = (𝐼𝑋(𝑝‘𝐼)))
135	68, 74	oveq12d 7423	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑌(𝑝‘𝑟)))) + ((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑍(𝑝‘𝑟))))) = ((𝐼𝑌(𝑝‘𝐼)) + (𝐼𝑍(𝑝‘𝐼))))
136	129, 134, 135	3eqtr4d 2782	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑋(𝑝‘𝑟)))) = (((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑌(𝑝‘𝑟)))) + ((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑍(𝑝‘𝑟))))))
137	136	oveq1d 7420	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑋(𝑝‘𝑟))))(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑋(𝑝‘𝑟))))) = ((((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑌(𝑝‘𝑟)))) + ((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑍(𝑝‘𝑟)))))(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑋(𝑝‘𝑟))))))
138	98, 137	eqtrd 2772	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑋(𝑝‘𝑟)))) = ((((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑌(𝑝‘𝑟)))) + ((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑍(𝑝‘𝑟)))))(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑋(𝑝‘𝑟))))))
139	25, 90, 31, 32, 42, 92, 97	gsummptfidmsplit 19792	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟)))) = (((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑌(𝑝‘𝑟))))(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑌(𝑝‘𝑟))))))
140		mdetrlin.ne1	. . . . . . . . . . . . . . . . 17 ⊢ (𝜑 → (𝑋 ↾ ((𝑁 ∖ {𝐼}) × 𝑁)) = (𝑌 ↾ ((𝑁 ∖ {𝐼}) × 𝑁)))
141	140	ad2antrr 724	. . . . . . . . . . . . . . . 16 ⊢ (((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) ∧ 𝑟 ∈ (𝑁 ∖ {𝐼})) → (𝑋 ↾ ((𝑁 ∖ {𝐼}) × 𝑁)) = (𝑌 ↾ ((𝑁 ∖ {𝐼}) × 𝑁)))
142	141	oveqd 7422	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) ∧ 𝑟 ∈ (𝑁 ∖ {𝐼})) → (𝑟(𝑋 ↾ ((𝑁 ∖ {𝐼}) × 𝑁))(𝑝‘𝑟)) = (𝑟(𝑌 ↾ ((𝑁 ∖ {𝐼}) × 𝑁))(𝑝‘𝑟)))
143		simpr 485	. . . . . . . . . . . . . . . 16 ⊢ (((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) ∧ 𝑟 ∈ (𝑁 ∖ {𝐼})) → 𝑟 ∈ (𝑁 ∖ {𝐼}))
144	78, 41	sylan2 593	. . . . . . . . . . . . . . . 16 ⊢ (((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) ∧ 𝑟 ∈ (𝑁 ∖ {𝐼})) → (𝑝‘𝑟) ∈ 𝑁)
145		ovres 7569	. . . . . . . . . . . . . . . 16 ⊢ ((𝑟 ∈ (𝑁 ∖ {𝐼}) ∧ (𝑝‘𝑟) ∈ 𝑁) → (𝑟(𝑋 ↾ ((𝑁 ∖ {𝐼}) × 𝑁))(𝑝‘𝑟)) = (𝑟𝑋(𝑝‘𝑟)))
146	143, 144, 145	syl2anc 584	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) ∧ 𝑟 ∈ (𝑁 ∖ {𝐼})) → (𝑟(𝑋 ↾ ((𝑁 ∖ {𝐼}) × 𝑁))(𝑝‘𝑟)) = (𝑟𝑋(𝑝‘𝑟)))
147		ovres 7569	. . . . . . . . . . . . . . . 16 ⊢ ((𝑟 ∈ (𝑁 ∖ {𝐼}) ∧ (𝑝‘𝑟) ∈ 𝑁) → (𝑟(𝑌 ↾ ((𝑁 ∖ {𝐼}) × 𝑁))(𝑝‘𝑟)) = (𝑟𝑌(𝑝‘𝑟)))
148	143, 144, 147	syl2anc 584	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) ∧ 𝑟 ∈ (𝑁 ∖ {𝐼})) → (𝑟(𝑌 ↾ ((𝑁 ∖ {𝐼}) × 𝑁))(𝑝‘𝑟)) = (𝑟𝑌(𝑝‘𝑟)))
149	142, 146, 148	3eqtr3rd 2781	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) ∧ 𝑟 ∈ (𝑁 ∖ {𝐼})) → (𝑟𝑌(𝑝‘𝑟)) = (𝑟𝑋(𝑝‘𝑟)))
150	149	mpteq2dva 5247	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑌(𝑝‘𝑟))) = (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑋(𝑝‘𝑟))))
151	150	oveq2d 7421	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ((mulGrp‘𝑅) Σ_g (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑌(𝑝‘𝑟)))) = ((mulGrp‘𝑅) Σ_g (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑋(𝑝‘𝑟)))))
152	151	oveq2d 7421	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑌(𝑝‘𝑟))))(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑌(𝑝‘𝑟))))) = (((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑌(𝑝‘𝑟))))(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑋(𝑝‘𝑟))))))
153	139, 152	eqtrd 2772	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟)))) = (((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑌(𝑝‘𝑟))))(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑋(𝑝‘𝑟))))))
154	25, 90, 31, 32, 50, 92, 97	gsummptfidmsplit 19792	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟)))) = (((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑍(𝑝‘𝑟))))(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑍(𝑝‘𝑟))))))
155		mdetrlin.ne2	. . . . . . . . . . . . . . . . 17 ⊢ (𝜑 → (𝑋 ↾ ((𝑁 ∖ {𝐼}) × 𝑁)) = (𝑍 ↾ ((𝑁 ∖ {𝐼}) × 𝑁)))
156	155	ad2antrr 724	. . . . . . . . . . . . . . . 16 ⊢ (((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) ∧ 𝑟 ∈ (𝑁 ∖ {𝐼})) → (𝑋 ↾ ((𝑁 ∖ {𝐼}) × 𝑁)) = (𝑍 ↾ ((𝑁 ∖ {𝐼}) × 𝑁)))
157	156	oveqd 7422	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) ∧ 𝑟 ∈ (𝑁 ∖ {𝐼})) → (𝑟(𝑋 ↾ ((𝑁 ∖ {𝐼}) × 𝑁))(𝑝‘𝑟)) = (𝑟(𝑍 ↾ ((𝑁 ∖ {𝐼}) × 𝑁))(𝑝‘𝑟)))
158		ovres 7569	. . . . . . . . . . . . . . . 16 ⊢ ((𝑟 ∈ (𝑁 ∖ {𝐼}) ∧ (𝑝‘𝑟) ∈ 𝑁) → (𝑟(𝑍 ↾ ((𝑁 ∖ {𝐼}) × 𝑁))(𝑝‘𝑟)) = (𝑟𝑍(𝑝‘𝑟)))
159	143, 144, 158	syl2anc 584	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) ∧ 𝑟 ∈ (𝑁 ∖ {𝐼})) → (𝑟(𝑍 ↾ ((𝑁 ∖ {𝐼}) × 𝑁))(𝑝‘𝑟)) = (𝑟𝑍(𝑝‘𝑟)))
160	157, 146, 159	3eqtr3rd 2781	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) ∧ 𝑟 ∈ (𝑁 ∖ {𝐼})) → (𝑟𝑍(𝑝‘𝑟)) = (𝑟𝑋(𝑝‘𝑟)))
161	160	mpteq2dva 5247	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑍(𝑝‘𝑟))) = (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑋(𝑝‘𝑟))))
162	161	oveq2d 7421	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ((mulGrp‘𝑅) Σ_g (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑍(𝑝‘𝑟)))) = ((mulGrp‘𝑅) Σ_g (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑋(𝑝‘𝑟)))))
163	162	oveq2d 7421	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑍(𝑝‘𝑟))))(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑍(𝑝‘𝑟))))) = (((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑍(𝑝‘𝑟))))(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑋(𝑝‘𝑟))))))
164	154, 163	eqtrd 2772	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟)))) = (((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑍(𝑝‘𝑟))))(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑋(𝑝‘𝑟))))))
165	153, 164	oveq12d 7423	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟)))) + ((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟))))) = ((((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑌(𝑝‘𝑟))))(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑋(𝑝‘𝑟))))) + (((mulGrp‘𝑅) Σ_g (𝑟 ∈ {𝐼} ↦ (𝑟𝑍(𝑝‘𝑟))))(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ (𝑁 ∖ {𝐼}) ↦ (𝑟𝑋(𝑝‘𝑟)))))))
166	89, 138, 165	3eqtr4rd 2783	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟)))) + ((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟))))) = ((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑋(𝑝‘𝑟)))))
167	166	oveq2d 7421	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)(((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟)))) + ((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟)))))) = ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑋(𝑝‘𝑟))))))
168	56, 167	eqtr3d 2774	. . . . . 6 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → (((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟))))) + ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟)))))) = ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑋(𝑝‘𝑟))))))
169	168	mpteq2dva 5247	. . . . 5 ⊢ (𝜑 → (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ (((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟))))) + ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟))))))) = (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑋(𝑝‘𝑟)))))))
170	9, 169	eqtrid 2784	. . . 4 ⊢ (𝜑 → ((𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟)))))) ∘_f + (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟))))))) = (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑋(𝑝‘𝑟)))))))
171	170	oveq2d 7421	. . 3 ⊢ (𝜑 → (𝑅 Σ_g ((𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟)))))) ∘_f + (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟)))))))) = (𝑅 Σ_g (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑋(𝑝‘𝑟))))))))
172		ringcmn 20092	. . . . 5 ⊢ (𝑅 ∈ Ring → 𝑅 ∈ CMnd)
173	10, 11, 172	3syl 18	. . . 4 ⊢ (𝜑 → 𝑅 ∈ CMnd)
174	38, 22	symgbasfi 19240	. . . . 5 ⊢ (𝑁 ∈ Fin → (Base‘(SymGrp‘𝑁)) ∈ Fin)
175	19, 174	syl 17	. . . 4 ⊢ (𝜑 → (Base‘(SymGrp‘𝑁)) ∈ Fin)
176	24, 54	ringcl 20066	. . . . 5 ⊢ ((𝑅 ∈ Ring ∧ (((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝) ∈ (Base‘𝑅) ∧ ((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟)))) ∈ (Base‘𝑅)) → ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟))))) ∈ (Base‘𝑅))
177	13, 28, 44, 176	syl3anc 1371	. . . 4 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟))))) ∈ (Base‘𝑅))
178	24, 54	ringcl 20066	. . . . 5 ⊢ ((𝑅 ∈ Ring ∧ (((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝) ∈ (Base‘𝑅) ∧ ((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟)))) ∈ (Base‘𝑅)) → ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟))))) ∈ (Base‘𝑅))
179	13, 28, 52, 178	syl3anc 1371	. . . 4 ⊢ ((𝜑 ∧ 𝑝 ∈ (Base‘(SymGrp‘𝑁))) → ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟))))) ∈ (Base‘𝑅))
180	24, 53, 173, 175, 177, 179, 3, 6	gsummptfidmadd2 19788	. . 3 ⊢ (𝜑 → (𝑅 Σ_g ((𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟)))))) ∘_f + (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟)))))))) = ((𝑅 Σ_g (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟))))))) + (𝑅 Σ_g (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟)))))))))
181	171, 180	eqtr3d 2774	. 2 ⊢ (𝜑 → (𝑅 Σ_g (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑋(𝑝‘𝑟))))))) = ((𝑅 Σ_g (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟))))))) + (𝑅 Σ_g (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟)))))))))
182		mdetrlin.d	. . . 4 ⊢ 𝐷 = (𝑁 maDet 𝑅)
183		eqid 2732	. . . 4 ⊢ (ℤRHom‘𝑅) = (ℤRHom‘𝑅)
184		eqid 2732	. . . 4 ⊢ (pmSgn‘𝑁) = (pmSgn‘𝑁)
185	182, 15, 16, 22, 183, 184, 54, 23	mdetleib2 22081	. . 3 ⊢ ((𝑅 ∈ CRing ∧ 𝑋 ∈ 𝐵) → (𝐷‘𝑋) = (𝑅 Σ_g (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑋(𝑝‘𝑟))))))))
186	10, 79, 185	syl2anc 584	. 2 ⊢ (𝜑 → (𝐷‘𝑋) = (𝑅 Σ_g (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑋(𝑝‘𝑟))))))))
187	182, 15, 16, 22, 183, 184, 54, 23	mdetleib2 22081	. . . 4 ⊢ ((𝑅 ∈ CRing ∧ 𝑌 ∈ 𝐵) → (𝐷‘𝑌) = (𝑅 Σ_g (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟))))))))
188	10, 14, 187	syl2anc 584	. . 3 ⊢ (𝜑 → (𝐷‘𝑌) = (𝑅 Σ_g (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟))))))))
189	182, 15, 16, 22, 183, 184, 54, 23	mdetleib2 22081	. . . 4 ⊢ ((𝑅 ∈ CRing ∧ 𝑍 ∈ 𝐵) → (𝐷‘𝑍) = (𝑅 Σ_g (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟))))))))
190	10, 45, 189	syl2anc 584	. . 3 ⊢ (𝜑 → (𝐷‘𝑍) = (𝑅 Σ_g (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟))))))))
191	188, 190	oveq12d 7423	. 2 ⊢ (𝜑 → ((𝐷‘𝑌) + (𝐷‘𝑍)) = ((𝑅 Σ_g (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑌(𝑝‘𝑟))))))) + (𝑅 Σ_g (𝑝 ∈ (Base‘(SymGrp‘𝑁)) ↦ ((((ℤRHom‘𝑅) ∘ (pmSgn‘𝑁))‘𝑝)(._r‘𝑅)((mulGrp‘𝑅) Σ_g (𝑟 ∈ 𝑁 ↦ (𝑟𝑍(𝑝‘𝑟)))))))))
192	181, 186, 191	3eqtr4d 2782	1 ⊢ (𝜑 → (𝐷‘𝑋) = ((𝐷‘𝑌) + (𝐷‘𝑍)))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 396 = wceq 1541 ∈ wcel 2106 Vcvv 3474 ∖ cdif 3944 ∪ cun 3945 ∩ cin 3946 ⊆ wss 3947 ∅c0 4321 {csn 4627 ⟨cop 4633 ↦ cmpt 5230 × cxp 5673 ↾ cres 5677 ∘ ccom 5679 Fn wfn 6535 ⟶wf 6536 ‘cfv 6540 (class class class)co 7405 ∘_f cof 7664 ↑_m cmap 8816 Fincfn 8935 Basecbs 17140 +_gcplusg 17193 ._rcmulr 17194 Σ_g cgsu 17382 Mndcmnd 18621 MndHom cmhm 18665 SymGrpcsymg 19228 pmSgncpsgn 19351 CMndccmn 19642 mulGrpcmgp 19981 Ringcrg 20049 CRingccrg 20050 ℤRHomczrh 21040 Mat cmat 21898 maDet cmdat 22077

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-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-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-xor 1510 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-ot 4636 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-tpos 8207 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-sup 9433 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-xnn0 12541 df-z 12555 df-dec 12674 df-uz 12819 df-rp 12971 df-fz 13481 df-fzo 13624 df-seq 13963 df-exp 14024 df-hash 14287 df-word 14461 df-lsw 14509 df-concat 14517 df-s1 14542 df-substr 14587 df-pfx 14617 df-splice 14696 df-reverse 14705 df-s2 14795 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-0g 17383 df-gsum 17384 df-prds 17389 df-pws 17391 df-mre 17526 df-mrc 17527 df-acs 17529 df-mgm 18557 df-sgrp 18606 df-mnd 18622 df-mhm 18667 df-submnd 18668 df-efmnd 18746 df-grp 18818 df-minusg 18819 df-mulg 18945 df-subg 18997 df-ghm 19084 df-gim 19127 df-cntz 19175 df-oppg 19204 df-symg 19229 df-pmtr 19304 df-psgn 19353 df-cmn 19644 df-abl 19645 df-mgp 19982 df-ur 19999 df-ring 20051 df-cring 20052 df-oppr 20142 df-dvdsr 20163 df-unit 20164 df-invr 20194 df-dvr 20207 df-rnghom 20243 df-drng 20309 df-subrg 20353 df-sra 20777 df-rgmod 20778 df-cnfld 20937 df-zring 21010 df-zrh 21044 df-dsmm 21278 df-frlm 21293 df-mat 21899 df-mdet 22078

This theorem is referenced by: mdetrlin2 22100 mdetuni0 22114 mdetmul 22116

W3C validator