Theorem coe1fzgsumd 22473

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 3320	. . . . . . 7 ⊢ (𝑛 = ∅ → (∀𝑥 ∈ 𝑛 𝑀 ∈ 𝐵 ↔ ∀𝑥 ∈ ∅ 𝑀 ∈ 𝐵))
4	3	anbi2d 641	. . . . . 6 ⊢ (𝑛 = ∅ → ((𝜑 ∧ ∀𝑥 ∈ 𝑛 𝑀 ∈ 𝐵) ↔ (𝜑 ∧ ∀𝑥 ∈ ∅ 𝑀 ∈ 𝐵)))
5		mpteq1 5200	. . . . . . . . . 10 ⊢ (𝑛 = ∅ → (𝑥 ∈ 𝑛 ↦ 𝑀) = (𝑥 ∈ ∅ ↦ 𝑀))
6	5	oveq2d 7426	. . . . . . . . 9 ⊢ (𝑛 = ∅ → (𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀)) = (𝑃 Σg (𝑥 ∈ ∅ ↦ 𝑀)))
7	6	fveq2d 6885	. . . . . . . 8 ⊢ (𝑛 = ∅ → (coe1‘(𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀))) = (coe1‘(𝑃 Σg (𝑥 ∈ ∅ ↦ 𝑀))))
8	7	fveq1d 6883	. . . . . . 7 ⊢ (𝑛 = ∅ → ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀)))‘𝐾) = ((coe1‘(𝑃 Σg (𝑥 ∈ ∅ ↦ 𝑀)))‘𝐾))
9		mpteq1 5200	. . . . . . . 8 ⊢ (𝑛 = ∅ → (𝑥 ∈ 𝑛 ↦ ((coe1‘𝑀)‘𝐾)) = (𝑥 ∈ ∅ ↦ ((coe1‘𝑀)‘𝐾)))
10	9	oveq2d 7426	. . . . . . 7 ⊢ (𝑛 = ∅ → (𝑅 Σg (𝑥 ∈ 𝑛 ↦ ((coe1‘𝑀)‘𝐾))) = (𝑅 Σg (𝑥 ∈ ∅ ↦ ((coe1‘𝑀)‘𝐾))))
11	8, 10	eqeq12d 2779	. . . . . 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 347	. . . . 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 3320	. . . . . . 7 ⊢ (𝑛 = 𝑚 → (∀𝑥 ∈ 𝑛 𝑀 ∈ 𝐵 ↔ ∀𝑥 ∈ 𝑚 𝑀 ∈ 𝐵))
14	13	anbi2d 641	. . . . . 6 ⊢ (𝑛 = 𝑚 → ((𝜑 ∧ ∀𝑥 ∈ 𝑛 𝑀 ∈ 𝐵) ↔ (𝜑 ∧ ∀𝑥 ∈ 𝑚 𝑀 ∈ 𝐵)))
15		mpteq1 5200	. . . . . . . . . 10 ⊢ (𝑛 = 𝑚 → (𝑥 ∈ 𝑛 ↦ 𝑀) = (𝑥 ∈ 𝑚 ↦ 𝑀))
16	15	oveq2d 7426	. . . . . . . . 9 ⊢ (𝑛 = 𝑚 → (𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀)) = (𝑃 Σg (𝑥 ∈ 𝑚 ↦ 𝑀)))
17	16	fveq2d 6885	. . . . . . . 8 ⊢ (𝑛 = 𝑚 → (coe1‘(𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀))) = (coe1‘(𝑃 Σg (𝑥 ∈ 𝑚 ↦ 𝑀))))
18	17	fveq1d 6883	. . . . . . 7 ⊢ (𝑛 = 𝑚 → ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀)))‘𝐾) = ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑚 ↦ 𝑀)))‘𝐾))
19		mpteq1 5200	. . . . . . . 8 ⊢ (𝑛 = 𝑚 → (𝑥 ∈ 𝑛 ↦ ((coe1‘𝑀)‘𝐾)) = (𝑥 ∈ 𝑚 ↦ ((coe1‘𝑀)‘𝐾)))
20	19	oveq2d 7426	. . . . . . 7 ⊢ (𝑛 = 𝑚 → (𝑅 Σg (𝑥 ∈ 𝑛 ↦ ((coe1‘𝑀)‘𝐾))) = (𝑅 Σg (𝑥 ∈ 𝑚 ↦ ((coe1‘𝑀)‘𝐾))))
21	18, 20	eqeq12d 2779	. . . . . 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 347	. . . . 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 3320	. . . . . . 7 ⊢ (𝑛 = (𝑚 ∪ {𝑎}) → (∀𝑥 ∈ 𝑛 𝑀 ∈ 𝐵 ↔ ∀𝑥 ∈ (𝑚 ∪ {𝑎})𝑀 ∈ 𝐵))
24	23	anbi2d 641	. . . . . 6 ⊢ (𝑛 = (𝑚 ∪ {𝑎}) → ((𝜑 ∧ ∀𝑥 ∈ 𝑛 𝑀 ∈ 𝐵) ↔ (𝜑 ∧ ∀𝑥 ∈ (𝑚 ∪ {𝑎})𝑀 ∈ 𝐵)))
25		mpteq1 5200	. . . . . . . . . 10 ⊢ (𝑛 = (𝑚 ∪ {𝑎}) → (𝑥 ∈ 𝑛 ↦ 𝑀) = (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ 𝑀))
26	25	oveq2d 7426	. . . . . . . . 9 ⊢ (𝑛 = (𝑚 ∪ {𝑎}) → (𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀)) = (𝑃 Σg (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ 𝑀)))
27	26	fveq2d 6885	. . . . . . . 8 ⊢ (𝑛 = (𝑚 ∪ {𝑎}) → (coe1‘(𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀))) = (coe1‘(𝑃 Σg (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ 𝑀))))
28	27	fveq1d 6883	. . . . . . 7 ⊢ (𝑛 = (𝑚 ∪ {𝑎}) → ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀)))‘𝐾) = ((coe1‘(𝑃 Σg (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ 𝑀)))‘𝐾))
29		mpteq1 5200	. . . . . . . 8 ⊢ (𝑛 = (𝑚 ∪ {𝑎}) → (𝑥 ∈ 𝑛 ↦ ((coe1‘𝑀)‘𝐾)) = (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ ((coe1‘𝑀)‘𝐾)))
30	29	oveq2d 7426	. . . . . . 7 ⊢ (𝑛 = (𝑚 ∪ {𝑎}) → (𝑅 Σg (𝑥 ∈ 𝑛 ↦ ((coe1‘𝑀)‘𝐾))) = (𝑅 Σg (𝑥 ∈ (𝑚 ∪ {𝑎}) ↦ ((coe1‘𝑀)‘𝐾))))
31	28, 30	eqeq12d 2779	. . . . . 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 347	. . . . 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 3320	. . . . . . 7 ⊢ (𝑛 = 𝑁 → (∀𝑥 ∈ 𝑛 𝑀 ∈ 𝐵 ↔ ∀𝑥 ∈ 𝑁 𝑀 ∈ 𝐵))
34	33	anbi2d 641	. . . . . 6 ⊢ (𝑛 = 𝑁 → ((𝜑 ∧ ∀𝑥 ∈ 𝑛 𝑀 ∈ 𝐵) ↔ (𝜑 ∧ ∀𝑥 ∈ 𝑁 𝑀 ∈ 𝐵)))
35		mpteq1 5200	. . . . . . . . . 10 ⊢ (𝑛 = 𝑁 → (𝑥 ∈ 𝑛 ↦ 𝑀) = (𝑥 ∈ 𝑁 ↦ 𝑀))
36	35	oveq2d 7426	. . . . . . . . 9 ⊢ (𝑛 = 𝑁 → (𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀)) = (𝑃 Σg (𝑥 ∈ 𝑁 ↦ 𝑀)))
37	36	fveq2d 6885	. . . . . . . 8 ⊢ (𝑛 = 𝑁 → (coe1‘(𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀))) = (coe1‘(𝑃 Σg (𝑥 ∈ 𝑁 ↦ 𝑀))))
38	37	fveq1d 6883	. . . . . . 7 ⊢ (𝑛 = 𝑁 → ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑛 ↦ 𝑀)))‘𝐾) = ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑁 ↦ 𝑀)))‘𝐾))
39		mpteq1 5200	. . . . . . . 8 ⊢ (𝑛 = 𝑁 → (𝑥 ∈ 𝑛 ↦ ((coe1‘𝑀)‘𝐾)) = (𝑥 ∈ 𝑁 ↦ ((coe1‘𝑀)‘𝐾)))
40	39	oveq2d 7426	. . . . . . 7 ⊢ (𝑛 = 𝑁 → (𝑅 Σg (𝑥 ∈ 𝑛 ↦ ((coe1‘𝑀)‘𝐾))) = (𝑅 Σg (𝑥 ∈ 𝑁 ↦ ((coe1‘𝑀)‘𝐾))))
41	38, 40	eqeq12d 2779	. . . . . 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 347	. . . . 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 6677	. . . . . . . . . . . . 13 ⊢ (𝑥 ∈ ∅ ↦ 𝑀) = ∅
44	43	oveq2i 7421	. . . . . . . . . . . 12 ⊢ (𝑃 Σg (𝑥 ∈ ∅ ↦ 𝑀)) = (𝑃 Σg ∅)
45		eqid 2763	. . . . . . . . . . . . 13 ⊢ (0g‘𝑃) = (0g‘𝑃)
46	45	gsum0 18746	. . . . . . . . . . . 12 ⊢ (𝑃 Σg ∅) = (0g‘𝑃)
47	44, 46	eqtri 2786	. . . . . . . . . . 11 ⊢ (𝑃 Σg (𝑥 ∈ ∅ ↦ 𝑀)) = (0g‘𝑃)
48	47	fveq2i 6884	. . . . . . . . . 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 6883	. . . . . . . 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 2763	. . . . . . . . . . 11 ⊢ (0g‘𝑅) = (0g‘𝑅)
54	52, 45, 53	coe1z 22433	. . . . . . . . . 10 ⊢ (𝑅 ∈ Ring → (coe1‘(0g‘𝑃)) = (ℕ0 × {(0g‘𝑅)}))
55	51, 54	syl 18	. . . . . . . . 9 ⊢ (𝜑 → (coe1‘(0g‘𝑃)) = (ℕ0 × {(0g‘𝑅)}))
56	55	fveq1d 6883	. . . . . . . 8 ⊢ (𝜑 → ((coe1‘(0g‘𝑃))‘𝐾) = ((ℕ0 × {(0g‘𝑅)})‘𝐾))
57		fvex 6894	. . . . . . . . 9 ⊢ (0g‘𝑅) ∈ V
58		coe1fzgsumd.k	. . . . . . . . 9 ⊢ (𝜑 → 𝐾 ∈ ℕ0)
59		fvconst2g 7200	. . . . . . . . 9 ⊢ (((0g‘𝑅) ∈ V ∧ 𝐾 ∈ ℕ0) → ((ℕ0 × {(0g‘𝑅)})‘𝐾) = (0g‘𝑅))
60	57, 58, 59	sylancr 598	. . . . . . . 8 ⊢ (𝜑 → ((ℕ0 × {(0g‘𝑅)})‘𝐾) = (0g‘𝑅))
61	50, 56, 60	3eqtrd 2802	. . . . . . 7 ⊢ (𝜑 → ((coe1‘(𝑃 Σg (𝑥 ∈ ∅ ↦ 𝑀)))‘𝐾) = (0g‘𝑅))
62		mpt0 6677	. . . . . . . . 9 ⊢ (𝑥 ∈ ∅ ↦ ((coe1‘𝑀)‘𝐾)) = ∅
63	62	oveq2i 7421	. . . . . . . 8 ⊢ (𝑅 Σg (𝑥 ∈ ∅ ↦ ((coe1‘𝑀)‘𝐾))) = (𝑅 Σg ∅)
64	53	gsum0 18746	. . . . . . . 8 ⊢ (𝑅 Σg ∅) = (0g‘𝑅)
65	63, 64	eqtri 2786	. . . . . . 7 ⊢ (𝑅 Σg (𝑥 ∈ ∅ ↦ ((coe1‘𝑀)‘𝐾))) = (0g‘𝑅)
66	61, 65	eqtr4di 2816	. . . . . 6 ⊢ (𝜑 → ((coe1‘(𝑃 Σg (𝑥 ∈ ∅ ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ ∅ ↦ ((coe1‘𝑀)‘𝐾))))
67	66	adantr 485	. . . . 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 22472	. . . . . . . 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 1139	. . . . . . 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 30	. . . . . 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 455	. . . . . 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 455	. . . . . 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 299	. . . . 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 9146	. . . 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 420	. . 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 39	. 2 ⊢ (𝜑 → (∀𝑥 ∈ 𝑁 𝑀 ∈ 𝐵 → ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑁 ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ 𝑁 ↦ ((coe1‘𝑀)‘𝐾)))))
78	1, 77	mpd 16	1 ⊢ (𝜑 → ((coe1‘(𝑃 Σg (𝑥 ∈ 𝑁 ↦ 𝑀)))‘𝐾) = (𝑅 Σg (𝑥 ∈ 𝑁 ↦ ((coe1‘𝑀)‘𝐾))))

This proof depends on syntax axioms:  ¬ wn 3   → wi 4   ∧ wa 400   = wceq 1570   ∈ wcel 2143  ∀wral 3079  Vcvv 3455   ∪ cun 3903  ∅c0 4286  {csn 4589   ↦ cmpt 5192   × cxp 5659  ‘cfv 6536  (class class class)co 7410  Fincfn 8939  ℕ₀cn0 12508  Basecbs 17273  0_gc0g 17496   Σ_g cgsu 17497  Ringcrg 20319  Poly₁cpl1 22346  coe₁cco1 22347

This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1825  ax-4 1839  ax-5 1940  ax-6 1997  ax-7 2038  ax-8 2145  ax-9 2153  ax-10 2176  ax-11 2192  ax-12 2213  ax-ext 2735  ax-rep 5238  ax-sep 5257  ax-nul 5269  ax-pow 5336  ax-pr 5404  ax-un 7732  ax-cnex 11160  ax-resscn 11161  ax-1cn 11162  ax-icn 11163  ax-addcl 11164  ax-addrcl 11165  ax-mulcl 11166  ax-mulrcl 11167  ax-mulcom 11168  ax-addass 11169  ax-mulass 11170  ax-distr 11171  ax-i2m1 11172  ax-1ne0 11173  ax-1rid 11174  ax-rnegex 11175  ax-rrecex 11176  ax-cnre 11177  ax-pre-lttri 11178  ax-pre-lttrn 11179  ax-pre-ltadd 11180  ax-pre-mulgt0 11181

This proof depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3or 1104  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1810  df-nf 1814  df-sb 2097  df-mo 2567  df-eu 2597  df-clab 2742  df-cleq 2755  df-clel 2838  df-nfc 2912  df-ne 2959  df-nel 3065  df-ral 3080  df-rex 3090  df-rmo 3369  df-reu 3370  df-rab 3417  df-v 3457  df-sbc 3745  df-csb 3854  df-dif 3908  df-un 3910  df-in 3912  df-ss 3922  df-pss 3925  df-nul 4287  df-if 4488  df-pw 4564  df-sn 4590  df-pr 4592  df-tp 4594  df-op 4596  df-uni 4873  df-int 4913  df-iun 4958  df-iin 4959  df-br 5110  df-opab 5174  df-mpt 5193  df-tr 5219  df-id 5556  df-eprel 5561  df-po 5569  df-so 5570  df-fr 5614  df-se 5615  df-we 5616  df-xp 5667  df-rel 5668  df-cnv 5669  df-co 5670  df-dm 5671  df-rn 5672  df-res 5673  df-ima 5674  df-pred 6302  df-ord 6363  df-on 6364  df-lim 6365  df-suc 6366  df-iota 6492  df-fun 6538  df-fn 6539  df-f 6540  df-f1 6541  df-fo 6542  df-f1o 6543  df-fv 6544  df-isom 6545  df-riota 7367  df-ov 7413  df-oprab 7414  df-mpo 7415  df-of 7674  df-ofr 7675  df-om 7859  df-1st 7982  df-2nd 7983  df-supp 8153  df-frecs 8274  df-wrecs 8305  df-recs 8354  df-rdg 8393  df-1o 8449  df-2o 8450  df-er 8690  df-map 8822  df-pm 8823  df-ixp 8892  df-en 8940  df-dom 8941  df-sdom 8942  df-fin 8943  df-fsupp 9318  df-sup 9398  df-oi 9468  df-card 9930  df-pnf 11249  df-mnf 11250  df-xr 11251  df-ltxr 11252  df-le 11253  df-sub 11447  df-neg 11448  df-nn 12238  df-2 12307  df-3 12308  df-4 12309  df-5 12310  df-6 12311  df-7 12312  df-8 12313  df-9 12314  df-n0 12509  df-z 12596  df-dec 12716  df-uz 12867  df-fz 13540  df-fzo 13688  df-seq 14043  df-hash 14372  df-struct 17211  df-sets 17228  df-slot 17246  df-ndx 17258  df-base 17274  df-ress 17295  df-plusg 17327  df-mulr 17328  df-sca 17330  df-vsca 17331  df-ip 17332  df-tset 17333  df-ple 17334  df-ds 17336  df-hom 17338  df-cco 17339  df-0g 17498  df-gsum 17499  df-prds 17504  df-pws 17506  df-mre 17642  df-mrc 17643  df-acs 17645  df-mgm 18702  df-sgrp 18781  df-mnd 18797  df-mhm 18845  df-submnd 18846  df-grp 19007  df-minusg 19008  df-mulg 19138  df-subg 19193  df-ghm 19288  df-cntz 19391  df-cmn 19856  df-abl 19857  df-mgp 20221  df-rng 20235  df-ur 20268  df-ring 20321  df-subrng 20654  df-subrg 20678  df-psr 22068  df-mpl 22070  df-opsr 22072  df-psr1 22349  df-ply1 22351  df-coe1 22352

This theorem is used by:  gsummoncoe1  22477  cpmatmcllem  22884  decpmatmullem  22937  mp2pm2mplem4  22975