Theorem coe1fzgsumd 21473

Description: Value of an evaluated coefficient in a finite group sum of polynomials. (Contributed by AV, 8-Oct-2019.)

Hypotheses

Ref	Expression
coe1fzgsumd.p	⊢ 𝑃 = (Poly1‘𝑅)
coe1fzgsumd.b	⊢ 𝐵 = (Base‘𝑃)
coe1fzgsumd.r	⊢ (𝜑 → 𝑅 ∈ Ring)
coe1fzgsumd.k	⊢ (𝜑 → 𝐾 ∈ ℕ0)
coe1fzgsumd.m	⊢ (𝜑 → ∀𝑥 ∈ 𝑁 𝑀 ∈ 𝐵)
coe1fzgsumd.n	⊢ (𝜑 → 𝑁 ∈ Fin)

Assertion

Ref	Expression
coe1fzgsumd	⊢ (𝜑 → ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑁 ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ 𝑁 ↦ ((coe1‘𝑀)‘𝐾))))

Distinct variable groups:   𝑥,𝐵   𝑥,𝐾   𝑥,𝑁

Allowed substitution hints:   𝜑(𝑥)   𝑃(𝑥)   𝑅(𝑥)   𝑀(𝑥)

Proof of Theorem coe1fzgsumd

Dummy variables 𝑎 𝑚 𝑛 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		coe1fzgsumd.m	. 2 ⊢ (𝜑 → ∀𝑥 ∈ 𝑁 𝑀 ∈ 𝐵)
2		coe1fzgsumd.n	. . 3 ⊢ (𝜑 → 𝑁 ∈ Fin)
3		raleq 3342	. . . . . . 7 ⊢ (𝑛 = ∅ → (∀𝑥 ∈ 𝑛 𝑀 ∈ 𝐵 ↔ ∀𝑥 ∈ ∅ 𝑀 ∈ 𝐵))
4	3	anbi2d 629	. . . . . 6 ⊢ (𝑛 = ∅ → ((𝜑 ∧ ∀𝑥 ∈ 𝑛 𝑀 ∈ 𝐵) ↔ (𝜑 ∧ ∀𝑥 ∈ ∅ 𝑀 ∈ 𝐵)))
5		mpteq1 5167	. . . . . . . . . 10 ⊢ (𝑛 = ∅ → (𝑥 ∈ 𝑛 ↦ 𝑀) = (𝑥 ∈ ∅ ↦ 𝑀))
6	5	oveq2d 7291	. . . . . . . . 9 ⊢ (𝑛 = ∅ → (𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀)) = (𝑃 Σg (𝑥 ∈ ∅ ↦ 𝑀)))
7	6	fveq2d 6778	. . . . . . . 8 ⊢ (𝑛 = ∅ → (coe1‘(𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀))) = (coe1‘(𝑃 Σg (𝑥 ∈ ∅ ↦ 𝑀))))
8	7	fveq1d 6776	. . . . . . 7 ⊢ (𝑛 = ∅ → ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀)))‘𝐾) = ((coe1‘(𝑃 Σg (𝑥 ∈ ∅ ↦ 𝑀)))‘𝐾))
9		mpteq1 5167	. . . . . . . 8 ⊢ (𝑛 = ∅ → (𝑥 ∈ 𝑛 ↦ ((coe1‘𝑀)‘𝐾)) = (𝑥 ∈ ∅ ↦ ((coe1‘𝑀)‘𝐾)))
10	9	oveq2d 7291	. . . . . . 7 ⊢ (𝑛 = ∅ → (𝑅 Σg (𝑥 ∈ 𝑛 ↦ ((coe1‘𝑀)‘𝐾))) = (𝑅 Σg (𝑥 ∈ ∅ ↦ ((coe1‘𝑀)‘𝐾))))
11	8, 10	eqeq12d 2754	. . . . . 6 ⊢ (𝑛 = ∅ → (((coe1‘(𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ 𝑛 ↦ ((coe1‘𝑀)‘𝐾))) ↔ ((coe1‘(𝑃 Σg (𝑥 ∈ ∅ ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ ∅ ↦ ((coe1‘𝑀)‘𝐾)))))
12	4, 11	imbi12d 345	. . . . 5 ⊢ (𝑛 = ∅ → (((𝜑 ∧ ∀𝑥 ∈ 𝑛 𝑀 ∈ 𝐵) → ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ 𝑛 ↦ ((coe1‘𝑀)‘𝐾)))) ↔ ((𝜑 ∧ ∀𝑥 ∈ ∅ 𝑀 ∈ 𝐵) → ((coe1‘(𝑃 Σg (𝑥 ∈ ∅ ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ ∅ ↦ ((coe1‘𝑀)‘𝐾))))))
13		raleq 3342	. . . . . . 7 ⊢ (𝑛 = 𝑚 → (∀𝑥 ∈ 𝑛 𝑀 ∈ 𝐵 ↔ ∀𝑥 ∈ 𝑚 𝑀 ∈ 𝐵))
14	13	anbi2d 629	. . . . . 6 ⊢ (𝑛 = 𝑚 → ((𝜑 ∧ ∀𝑥 ∈ 𝑛 𝑀 ∈ 𝐵) ↔ (𝜑 ∧ ∀𝑥 ∈ 𝑚 𝑀 ∈ 𝐵)))
15		mpteq1 5167	. . . . . . . . . 10 ⊢ (𝑛 = 𝑚 → (𝑥 ∈ 𝑛 ↦ 𝑀) = (𝑥 ∈ 𝑚 ↦ 𝑀))
16	15	oveq2d 7291	. . . . . . . . 9 ⊢ (𝑛 = 𝑚 → (𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀)) = (𝑃 Σg (𝑥 ∈ 𝑚 ↦ 𝑀)))
17	16	fveq2d 6778	. . . . . . . 8 ⊢ (𝑛 = 𝑚 → (coe1‘(𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀))) = (coe1‘(𝑃 Σg (𝑥 ∈ 𝑚 ↦ 𝑀))))
18	17	fveq1d 6776	. . . . . . 7 ⊢ (𝑛 = 𝑚 → ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀)))‘𝐾) = ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑚 ↦ 𝑀)))‘𝐾))
19		mpteq1 5167	. . . . . . . 8 ⊢ (𝑛 = 𝑚 → (𝑥 ∈ 𝑛 ↦ ((coe1‘𝑀)‘𝐾)) = (𝑥 ∈ 𝑚 ↦ ((coe1‘𝑀)‘𝐾)))
20	19	oveq2d 7291	. . . . . . 7 ⊢ (𝑛 = 𝑚 → (𝑅 Σg (𝑥 ∈ 𝑛 ↦ ((coe1‘𝑀)‘𝐾))) = (𝑅 Σg (𝑥 ∈ 𝑚 ↦ ((coe1‘𝑀)‘𝐾))))
21	18, 20	eqeq12d 2754	. . . . . 6 ⊢ (𝑛 = 𝑚 → (((coe1‘(𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ 𝑛 ↦ ((coe1‘𝑀)‘𝐾))) ↔ ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑚 ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ 𝑚 ↦ ((coe1‘𝑀)‘𝐾)))))
22	14, 21	imbi12d 345	. . . . 5 ⊢ (𝑛 = 𝑚 → (((𝜑 ∧ ∀𝑥 ∈ 𝑛 𝑀 ∈ 𝐵) → ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ 𝑛 ↦ ((coe1‘𝑀)‘𝐾)))) ↔ ((𝜑 ∧ ∀𝑥 ∈ 𝑚 𝑀 ∈ 𝐵) → ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑚 ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ 𝑚 ↦ ((coe1‘𝑀)‘𝐾))))))
23		raleq 3342	. . . . . . 7 ⊢ (𝑛 = (𝑚 ∪ {𝑎}) → (∀𝑥 ∈ 𝑛 𝑀 ∈ 𝐵 ↔ ∀𝑥 ∈ (𝑚 ∪ {𝑎})𝑀 ∈ 𝐵))
24	23	anbi2d 629	. . . . . 6 ⊢ (𝑛 = (𝑚 ∪ {𝑎}) → ((𝜑 ∧ ∀𝑥 ∈ 𝑛 𝑀 ∈ 𝐵) ↔ (𝜑 ∧ ∀𝑥 ∈ (𝑚 ∪ {𝑎})𝑀 ∈ 𝐵)))
25		mpteq1 5167	. . . . . . . . . 10 ⊢ (𝑛 = (𝑚 ∪ {𝑎}) → (𝑥 ∈ 𝑛 ↦ 𝑀) = (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ 𝑀))
26	25	oveq2d 7291	. . . . . . . . 9 ⊢ (𝑛 = (𝑚 ∪ {𝑎}) → (𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀)) = (𝑃 Σg (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ 𝑀)))
27	26	fveq2d 6778	. . . . . . . 8 ⊢ (𝑛 = (𝑚 ∪ {𝑎}) → (coe1‘(𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀))) = (coe1‘(𝑃 Σg (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ 𝑀))))
28	27	fveq1d 6776	. . . . . . 7 ⊢ (𝑛 = (𝑚 ∪ {𝑎}) → ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀)))‘𝐾) = ((coe1‘(𝑃 Σg (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ 𝑀)))‘𝐾))
29		mpteq1 5167	. . . . . . . 8 ⊢ (𝑛 = (𝑚 ∪ {𝑎}) → (𝑥 ∈ 𝑛 ↦ ((coe1‘𝑀)‘𝐾)) = (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ ((coe1‘𝑀)‘𝐾)))
30	29	oveq2d 7291	. . . . . . 7 ⊢ (𝑛 = (𝑚 ∪ {𝑎}) → (𝑅 Σg (𝑥 ∈ 𝑛 ↦ ((coe1‘𝑀)‘𝐾))) = (𝑅 Σg (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ ((coe1‘𝑀)‘𝐾))))
31	28, 30	eqeq12d 2754	. . . . . 6 ⊢ (𝑛 = (𝑚 ∪ {𝑎}) → (((coe1‘(𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ 𝑛 ↦ ((coe1‘𝑀)‘𝐾))) ↔ ((coe1‘(𝑃 Σg (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ ((coe1‘𝑀)‘𝐾)))))
32	24, 31	imbi12d 345	. . . . 5 ⊢ (𝑛 = (𝑚 ∪ {𝑎}) → (((𝜑 ∧ ∀𝑥 ∈ 𝑛 𝑀 ∈ 𝐵) → ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ 𝑛 ↦ ((coe1‘𝑀)‘𝐾)))) ↔ ((𝜑 ∧ ∀𝑥 ∈ (𝑚 ∪ {𝑎})𝑀 ∈ 𝐵) → ((coe1‘(𝑃 Σg (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ ((coe1‘𝑀)‘𝐾))))))
33		raleq 3342	. . . . . . 7 ⊢ (𝑛 = 𝑁 → (∀𝑥 ∈ 𝑛 𝑀 ∈ 𝐵 ↔ ∀𝑥 ∈ 𝑁 𝑀 ∈ 𝐵))
34	33	anbi2d 629	. . . . . 6 ⊢ (𝑛 = 𝑁 → ((𝜑 ∧ ∀𝑥 ∈ 𝑛 𝑀 ∈ 𝐵) ↔ (𝜑 ∧ ∀𝑥 ∈ 𝑁 𝑀 ∈ 𝐵)))
35		mpteq1 5167	. . . . . . . . . 10 ⊢ (𝑛 = 𝑁 → (𝑥 ∈ 𝑛 ↦ 𝑀) = (𝑥 ∈ 𝑁 ↦ 𝑀))
36	35	oveq2d 7291	. . . . . . . . 9 ⊢ (𝑛 = 𝑁 → (𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀)) = (𝑃 Σg (𝑥 ∈ 𝑁 ↦ 𝑀)))
37	36	fveq2d 6778	. . . . . . . 8 ⊢ (𝑛 = 𝑁 → (coe1‘(𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀))) = (coe1‘(𝑃 Σg (𝑥 ∈ 𝑁 ↦ 𝑀))))
38	37	fveq1d 6776	. . . . . . 7 ⊢ (𝑛 = 𝑁 → ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀)))‘𝐾) = ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑁 ↦ 𝑀)))‘𝐾))
39		mpteq1 5167	. . . . . . . 8 ⊢ (𝑛 = 𝑁 → (𝑥 ∈ 𝑛 ↦ ((coe1‘𝑀)‘𝐾)) = (𝑥 ∈ 𝑁 ↦ ((coe1‘𝑀)‘𝐾)))
40	39	oveq2d 7291	. . . . . . 7 ⊢ (𝑛 = 𝑁 → (𝑅 Σg (𝑥 ∈ 𝑛 ↦ ((coe1‘𝑀)‘𝐾))) = (𝑅 Σg (𝑥 ∈ 𝑁 ↦ ((coe1‘𝑀)‘𝐾))))
41	38, 40	eqeq12d 2754	. . . . . 6 ⊢ (𝑛 = 𝑁 → (((coe1‘(𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ 𝑛 ↦ ((coe1‘𝑀)‘𝐾))) ↔ ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑁 ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ 𝑁 ↦ ((coe1‘𝑀)‘𝐾)))))
42	34, 41	imbi12d 345	. . . . 5 ⊢ (𝑛 = 𝑁 → (((𝜑 ∧ ∀𝑥 ∈ 𝑛 𝑀 ∈ 𝐵) → ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ 𝑛 ↦ ((coe1‘𝑀)‘𝐾)))) ↔ ((𝜑 ∧ ∀𝑥 ∈ 𝑁 𝑀 ∈ 𝐵) → ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑁 ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ 𝑁 ↦ ((coe1‘𝑀)‘𝐾))))))
43		mpt0 6575	. . . . . . . . . . . . 13 ⊢ (𝑥 ∈ ∅ ↦ 𝑀) = ∅
44	43	oveq2i 7286	. . . . . . . . . . . 12 ⊢ (𝑃 Σg (𝑥 ∈ ∅ ↦ 𝑀)) = (𝑃 Σg ∅)
45		eqid 2738	. . . . . . . . . . . . 13 ⊢ (0g‘𝑃) = (0g‘𝑃)
46	45	gsum0 18368	. . . . . . . . . . . 12 ⊢ (𝑃 Σg ∅) = (0g‘𝑃)
47	44, 46	eqtri 2766	. . . . . . . . . . 11 ⊢ (𝑃 Σg (𝑥 ∈ ∅ ↦ 𝑀)) = (0g‘𝑃)
48	47	fveq2i 6777	. . . . . . . . . 10 ⊢ (coe1‘(𝑃 Σg (𝑥 ∈ ∅ ↦ 𝑀))) = (coe1‘(0g‘𝑃))
49	48	a1i 11	. . . . . . . . 9 ⊢ (𝜑 → (coe1‘(𝑃 Σg (𝑥 ∈ ∅ ↦ 𝑀))) = (coe1‘(0g‘𝑃)))
50	49	fveq1d 6776	. . . . . . . 8 ⊢ (𝜑 → ((coe1‘(𝑃 Σg (𝑥 ∈ ∅ ↦ 𝑀)))‘𝐾) = ((coe1‘(0g‘𝑃))‘𝐾))
51		coe1fzgsumd.r	. . . . . . . . . 10 ⊢ (𝜑 → 𝑅 ∈ Ring)
52		coe1fzgsumd.p	. . . . . . . . . . 11 ⊢ 𝑃 = (Poly1‘𝑅)
53		eqid 2738	. . . . . . . . . . 11 ⊢ (0g‘𝑅) = (0g‘𝑅)
54	52, 45, 53	coe1z 21434	. . . . . . . . . 10 ⊢ (𝑅 ∈ Ring → (coe1‘(0g‘𝑃)) = (ℕ0 × {(0g‘𝑅)}))
55	51, 54	syl 17	. . . . . . . . 9 ⊢ (𝜑 → (coe1‘(0g‘𝑃)) = (ℕ0 × {(0g‘𝑅)}))
56	55	fveq1d 6776	. . . . . . . 8 ⊢ (𝜑 → ((coe1‘(0g‘𝑃))‘𝐾) = ((ℕ0 × {(0g‘𝑅)})‘𝐾))
57		fvex 6787	. . . . . . . . 9 ⊢ (0g‘𝑅) ∈ V
58		coe1fzgsumd.k	. . . . . . . . 9 ⊢ (𝜑 → 𝐾 ∈ ℕ0)
59		fvconst2g 7077	. . . . . . . . 9 ⊢ (((0g‘𝑅) ∈ V ∧ 𝐾 ∈ ℕ0) → ((ℕ0 × {(0g‘𝑅)})‘𝐾) = (0g‘𝑅))
60	57, 58, 59	sylancr 587	. . . . . . . 8 ⊢ (𝜑 → ((ℕ0 × {(0g‘𝑅)})‘𝐾) = (0g‘𝑅))
61	50, 56, 60	3eqtrd 2782	. . . . . . 7 ⊢ (𝜑 → ((coe1‘(𝑃 Σg (𝑥 ∈ ∅ ↦ 𝑀)))‘𝐾) = (0g‘𝑅))
62		mpt0 6575	. . . . . . . . 9 ⊢ (𝑥 ∈ ∅ ↦ ((coe1‘𝑀)‘𝐾)) = ∅
63	62	oveq2i 7286	. . . . . . . 8 ⊢ (𝑅 Σg (𝑥 ∈ ∅ ↦ ((coe1‘𝑀)‘𝐾))) = (𝑅 Σg ∅)
64	53	gsum0 18368	. . . . . . . 8 ⊢ (𝑅 Σg ∅) = (0g‘𝑅)
65	63, 64	eqtri 2766	. . . . . . 7 ⊢ (𝑅 Σg (𝑥 ∈ ∅ ↦ ((coe1‘𝑀)‘𝐾))) = (0g‘𝑅)
66	61, 65	eqtr4di 2796	. . . . . 6 ⊢ (𝜑 → ((coe1‘(𝑃 Σg (𝑥 ∈ ∅ ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ ∅ ↦ ((coe1‘𝑀)‘𝐾))))
67	66	adantr 481	. . . . 5 ⊢ ((𝜑 ∧ ∀𝑥 ∈ ∅ 𝑀 ∈ 𝐵) → ((coe1‘(𝑃 Σg (𝑥 ∈ ∅ ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ ∅ ↦ ((coe1‘𝑀)‘𝐾))))
68		coe1fzgsumd.b	. . . . . . . . 9 ⊢ 𝐵 = (Base‘𝑃)
69	52, 68, 51, 58	coe1fzgsumdlem 21472	. . . . . . . 8 ⊢ ((𝑚 ∈ Fin ∧ ¬ 𝑎 ∈ 𝑚 ∧ 𝜑) → ((∀𝑥 ∈ 𝑚 𝑀 ∈ 𝐵 → ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑚 ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ 𝑚 ↦ ((coe1‘𝑀)‘𝐾)))) → (∀𝑥 ∈ (𝑚 ∪ {𝑎})𝑀 ∈ 𝐵 → ((coe1‘(𝑃 Σg (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ ((coe1‘𝑀)‘𝐾))))))
70	69	3expia 1120	. . . . . . 7 ⊢ ((𝑚 ∈ Fin ∧ ¬ 𝑎 ∈ 𝑚) → (𝜑 → ((∀𝑥 ∈ 𝑚 𝑀 ∈ 𝐵 → ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑚 ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ 𝑚 ↦ ((coe1‘𝑀)‘𝐾)))) → (∀𝑥 ∈ (𝑚 ∪ {𝑎})𝑀 ∈ 𝐵 → ((coe1‘(𝑃 Σg (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ ((coe1‘𝑀)‘𝐾)))))))
71	70	a2d 29	. . . . . 6 ⊢ ((𝑚 ∈ Fin ∧ ¬ 𝑎 ∈ 𝑚) → ((𝜑 → (∀𝑥 ∈ 𝑚 𝑀 ∈ 𝐵 → ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑚 ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ 𝑚 ↦ ((coe1‘𝑀)‘𝐾))))) → (𝜑 → (∀𝑥 ∈ (𝑚 ∪ {𝑎})𝑀 ∈ 𝐵 → ((coe1‘(𝑃 Σg (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ ((coe1‘𝑀)‘𝐾)))))))
72		impexp 451	. . . . . 6 ⊢ (((𝜑 ∧ ∀𝑥 ∈ 𝑚 𝑀 ∈ 𝐵) → ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑚 ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ 𝑚 ↦ ((coe1‘𝑀)‘𝐾)))) ↔ (𝜑 → (∀𝑥 ∈ 𝑚 𝑀 ∈ 𝐵 → ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑚 ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ 𝑚 ↦ ((coe1‘𝑀)‘𝐾))))))
73		impexp 451	. . . . . 6 ⊢ (((𝜑 ∧ ∀𝑥 ∈ (𝑚 ∪ {𝑎})𝑀 ∈ 𝐵) → ((coe1‘(𝑃 Σg (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ ((coe1‘𝑀)‘𝐾)))) ↔ (𝜑 → (∀𝑥 ∈ (𝑚 ∪ {𝑎})𝑀 ∈ 𝐵 → ((coe1‘(𝑃 Σg (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ ((coe1‘𝑀)‘𝐾))))))
74	71, 72, 73	3imtr4g 296	. . . . 5 ⊢ ((𝑚 ∈ Fin ∧ ¬ 𝑎 ∈ 𝑚) → (((𝜑 ∧ ∀𝑥 ∈ 𝑚 𝑀 ∈ 𝐵) → ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑚 ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ 𝑚 ↦ ((coe1‘𝑀)‘𝐾)))) → ((𝜑 ∧ ∀𝑥 ∈ (𝑚 ∪ {𝑎})𝑀 ∈ 𝐵) → ((coe1‘(𝑃 Σg (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ ((coe1‘𝑀)‘𝐾))))))
75	12, 22, 32, 42, 67, 74	findcard2s 8948	. . . 4 ⊢ (𝑁 ∈ Fin → ((𝜑 ∧ ∀𝑥 ∈ 𝑁 𝑀 ∈ 𝐵) → ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑁 ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ 𝑁 ↦ ((coe1‘𝑀)‘𝐾)))))
76	75	expd 416	. . 3 ⊢ (𝑁 ∈ Fin → (𝜑 → (∀𝑥 ∈ 𝑁 𝑀 ∈ 𝐵 → ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑁 ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ 𝑁 ↦ ((coe1‘𝑀)‘𝐾))))))
77	2, 76	mpcom 38	. 2 ⊢ (𝜑 → (∀𝑥 ∈ 𝑁 𝑀 ∈ 𝐵 → ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑁 ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ 𝑁 ↦ ((coe1‘𝑀)‘𝐾)))))
78	1, 77	mpd 15	1 ⊢ (𝜑 → ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑁 ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ 𝑁 ↦ ((coe1‘𝑀)‘𝐾))))

Syntax hints:  ¬ wn 3   → wi 4   ∧ wa 396   = wceq 1539   ∈ wcel 2106  ∀wral 3064  Vcvv 3432   ∪ cun 3885  ∅c0 4256  {csn 4561   ↦ cmpt 5157   × cxp 5587  ‘cfv 6433  (class class class)co 7275  Fincfn 8733  ℕ₀cn0 12233  Basecbs 16912  0_gc0g 17150   Σ_g cgsu 17151  Ringcrg 19783  Poly₁cpl1 21348  coe₁cco1 21349

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1798  ax-4 1812  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 2709  ax-rep 5209  ax-sep 5223  ax-nul 5230  ax-pow 5288  ax-pr 5352  ax-un 7588  ax-cnex 10927  ax-resscn 10928  ax-1cn 10929  ax-icn 10930  ax-addcl 10931  ax-addrcl 10932  ax-mulcl 10933  ax-mulrcl 10934  ax-mulcom 10935  ax-addass 10936  ax-mulass 10937  ax-distr 10938  ax-i2m1 10939  ax-1ne0 10940  ax-1rid 10941  ax-rnegex 10942  ax-rrecex 10943  ax-cnre 10944  ax-pre-lttri 10945  ax-pre-lttrn 10946  ax-pre-ltadd 10947  ax-pre-mulgt0 10948

This theorem depends on definitions:  df-bi 206  df-an 397  df-or 845  df-3or 1087  df-3an 1088  df-tru 1542  df-fal 1552  df-ex 1783  df-nf 1787  df-sb 2068  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2816  df-nfc 2889  df-ne 2944  df-nel 3050  df-ral 3069  df-rex 3070  df-rmo 3071  df-reu 3072  df-rab 3073  df-v 3434  df-sbc 3717  df-csb 3833  df-dif 3890  df-un 3892  df-in 3894  df-ss 3904  df-pss 3906  df-nul 4257  df-if 4460  df-pw 4535  df-sn 4562  df-pr 4564  df-tp 4566  df-op 4568  df-uni 4840  df-int 4880  df-iun 4926  df-iin 4927  df-br 5075  df-opab 5137  df-mpt 5158  df-tr 5192  df-id 5489  df-eprel 5495  df-po 5503  df-so 5504  df-fr 5544  df-se 5545  df-we 5546  df-xp 5595  df-rel 5596  df-cnv 5597  df-co 5598  df-dm 5599  df-rn 5600  df-res 5601  df-ima 5602  df-pred 6202  df-ord 6269  df-on 6270  df-lim 6271  df-suc 6272  df-iota 6391  df-fun 6435  df-fn 6436  df-f 6437  df-f1 6438  df-fo 6439  df-f1o 6440  df-fv 6441  df-isom 6442  df-riota 7232  df-ov 7278  df-oprab 7279  df-mpo 7280  df-of 7533  df-ofr 7534  df-om 7713  df-1st 7831  df-2nd 7832  df-supp 7978  df-frecs 8097  df-wrecs 8128  df-recs 8202  df-rdg 8241  df-1o 8297  df-er 8498  df-map 8617  df-pm 8618  df-ixp 8686  df-en 8734  df-dom 8735  df-sdom 8736  df-fin 8737  df-fsupp 9129  df-oi 9269  df-card 9697  df-pnf 11011  df-mnf 11012  df-xr 11013  df-ltxr 11014  df-le 11015  df-sub 11207  df-neg 11208  df-nn 11974  df-2 12036  df-3 12037  df-4 12038  df-5 12039  df-6 12040  df-7 12041  df-8 12042  df-9 12043  df-n0 12234  df-z 12320  df-dec 12438  df-uz 12583  df-fz 13240  df-fzo 13383  df-seq 13722  df-hash 14045  df-struct 16848  df-sets 16865  df-slot 16883  df-ndx 16895  df-base 16913  df-ress 16942  df-plusg 16975  df-mulr 16976  df-sca 16978  df-vsca 16979  df-tset 16981  df-ple 16982  df-0g 17152  df-gsum 17153  df-mre 17295  df-mrc 17296  df-acs 17298  df-mgm 18326  df-sgrp 18375  df-mnd 18386  df-mhm 18430  df-submnd 18431  df-grp 18580  df-minusg 18581  df-mulg 18701  df-subg 18752  df-ghm 18832  df-cntz 18923  df-cmn 19388  df-abl 19389  df-mgp 19721  df-ur 19738  df-ring 19785  df-subrg 20022  df-psr 21112  df-mpl 21114  df-opsr 21116  df-psr1 21351  df-ply1 21353  df-coe1 21354

This theorem is referenced by:  gsummoncoe1  21475  cpmatmcllem  21867  decpmatmullem  21920  mp2pm2mplem4  21958