Theorem mpaaeu 43123

Description: An algebraic number has exactly one monic polynomial of the least degree. (Contributed by Stefan O'Rear, 25-Nov-2014.)

Assertion

Ref	Expression
mpaaeu	⊢ (𝐴 ∈ 𝔸 → ∃!𝑝 ∈ (Poly‘ℚ)((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1))

Distinct variable group:   𝐴,𝑝

Proof of Theorem mpaaeu

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

Step	Hyp	Ref	Expression
1		qsscn 12879	. . . . . 6 ⊢ ℚ ⊆ ℂ
2		eldifi 4084	. . . . . . . . . 10 ⊢ (𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝}) → 𝑎 ∈ (Poly‘ℚ))
3	2	ad2antlr 727	. . . . . . . . 9 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → 𝑎 ∈ (Poly‘ℚ))
4		zssq 12875	. . . . . . . . . 10 ⊢ ℤ ⊆ ℚ
5		0z 12500	. . . . . . . . . 10 ⊢ 0 ∈ ℤ
6	4, 5	sselii 3934	. . . . . . . . 9 ⊢ 0 ∈ ℚ
7		eqid 2729	. . . . . . . . . 10 ⊢ (coeff‘𝑎) = (coeff‘𝑎)
8	7	coef2 26152	. . . . . . . . 9 ⊢ ((𝑎 ∈ (Poly‘ℚ) ∧ 0 ∈ ℚ) → (coeff‘𝑎):ℕ0⟶ℚ)
9	3, 6, 8	sylancl 586	. . . . . . . 8 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → (coeff‘𝑎):ℕ0⟶ℚ)
10		dgrcl 26154	. . . . . . . . 9 ⊢ (𝑎 ∈ (Poly‘ℚ) → (deg‘𝑎) ∈ ℕ0)
11	3, 10	syl 17	. . . . . . . 8 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → (deg‘𝑎) ∈ ℕ0)
12	9, 11	ffvelcdmd 7023	. . . . . . 7 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → ((coeff‘𝑎)‘(deg‘𝑎)) ∈ ℚ)
13		eldifsni 4744	. . . . . . . . 9 ⊢ (𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝}) → 𝑎 ≠ 0𝑝)
14	13	ad2antlr 727	. . . . . . . 8 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → 𝑎 ≠ 0𝑝)
15		eqid 2729	. . . . . . . . . . 11 ⊢ (deg‘𝑎) = (deg‘𝑎)
16	15, 7	dgreq0 26187	. . . . . . . . . 10 ⊢ (𝑎 ∈ (Poly‘ℚ) → (𝑎 = 0𝑝 ↔ ((coeff‘𝑎)‘(deg‘𝑎)) = 0))
17	16	necon3bid 2969	. . . . . . . . 9 ⊢ (𝑎 ∈ (Poly‘ℚ) → (𝑎 ≠ 0𝑝 ↔ ((coeff‘𝑎)‘(deg‘𝑎)) ≠ 0))
18	3, 17	syl 17	. . . . . . . 8 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → (𝑎 ≠ 0𝑝 ↔ ((coeff‘𝑎)‘(deg‘𝑎)) ≠ 0))
19	14, 18	mpbid 232	. . . . . . 7 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → ((coeff‘𝑎)‘(deg‘𝑎)) ≠ 0)
20		qreccl 12888	. . . . . . 7 ⊢ ((((coeff‘𝑎)‘(deg‘𝑎)) ∈ ℚ ∧ ((coeff‘𝑎)‘(deg‘𝑎)) ≠ 0) → (1 / ((coeff‘𝑎)‘(deg‘𝑎))) ∈ ℚ)
21	12, 19, 20	syl2anc 584	. . . . . 6 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → (1 / ((coeff‘𝑎)‘(deg‘𝑎))) ∈ ℚ)
22		plyconst 26127	. . . . . 6 ⊢ ((ℚ ⊆ ℂ ∧ (1 / ((coeff‘𝑎)‘(deg‘𝑎))) ∈ ℚ) → (ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∈ (Poly‘ℚ))
23	1, 21, 22	sylancr 587	. . . . 5 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → (ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∈ (Poly‘ℚ))
24		simpl 482	. . . . . 6 ⊢ (((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ)) → (ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∈ (Poly‘ℚ))
25		simpr 484	. . . . . 6 ⊢ (((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ)) → 𝑎 ∈ (Poly‘ℚ))
26		qaddcl 12884	. . . . . . 7 ⊢ ((𝑏 ∈ ℚ ∧ 𝑐 ∈ ℚ) → (𝑏 + 𝑐) ∈ ℚ)
27	26	adantl 481	. . . . . 6 ⊢ ((((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ)) ∧ (𝑏 ∈ ℚ ∧ 𝑐 ∈ ℚ)) → (𝑏 + 𝑐) ∈ ℚ)
28		qmulcl 12886	. . . . . . 7 ⊢ ((𝑏 ∈ ℚ ∧ 𝑐 ∈ ℚ) → (𝑏 · 𝑐) ∈ ℚ)
29	28	adantl 481	. . . . . 6 ⊢ ((((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ)) ∧ (𝑏 ∈ ℚ ∧ 𝑐 ∈ ℚ)) → (𝑏 · 𝑐) ∈ ℚ)
30	24, 25, 27, 29	plymul 26139	. . . . 5 ⊢ (((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ)) → ((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎) ∈ (Poly‘ℚ))
31	23, 3, 30	syl2anc 584	. . . 4 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → ((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎) ∈ (Poly‘ℚ))
32	7	coef3 26153	. . . . . . . . 9 ⊢ (𝑎 ∈ (Poly‘ℚ) → (coeff‘𝑎):ℕ0⟶ℂ)
33	3, 32	syl 17	. . . . . . . 8 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → (coeff‘𝑎):ℕ0⟶ℂ)
34	33, 11	ffvelcdmd 7023	. . . . . . 7 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → ((coeff‘𝑎)‘(deg‘𝑎)) ∈ ℂ)
35	34, 19	reccld 11911	. . . . . 6 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → (1 / ((coeff‘𝑎)‘(deg‘𝑎))) ∈ ℂ)
36	34, 19	recne0d 11912	. . . . . 6 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → (1 / ((coeff‘𝑎)‘(deg‘𝑎))) ≠ 0)
37		dgrmulc 26193	. . . . . 6 ⊢ (((1 / ((coeff‘𝑎)‘(deg‘𝑎))) ∈ ℂ ∧ (1 / ((coeff‘𝑎)‘(deg‘𝑎))) ≠ 0 ∧ 𝑎 ∈ (Poly‘ℚ)) → (deg‘((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎)) = (deg‘𝑎))
38	35, 36, 3, 37	syl3anc 1373	. . . . 5 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → (deg‘((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎)) = (deg‘𝑎))
39		simprl 770	. . . . 5 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → (deg‘𝑎) = (degAA‘𝐴))
40	38, 39	eqtrd 2764	. . . 4 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → (deg‘((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎)) = (degAA‘𝐴))
41		aacn 26241	. . . . . . 7 ⊢ (𝐴 ∈ 𝔸 → 𝐴 ∈ ℂ)
42	41	ad2antrr 726	. . . . . 6 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → 𝐴 ∈ ℂ)
43		ovex 7386	. . . . . . . 8 ⊢ (1 / ((coeff‘𝑎)‘(deg‘𝑎))) ∈ V
44		fnconstg 6716	. . . . . . . 8 ⊢ ((1 / ((coeff‘𝑎)‘(deg‘𝑎))) ∈ V → (ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) Fn ℂ)
45	43, 44	mp1i 13	. . . . . . 7 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → (ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) Fn ℂ)
46		plyf 26119	. . . . . . . 8 ⊢ (𝑎 ∈ (Poly‘ℚ) → 𝑎:ℂ⟶ℂ)
47		ffn 6656	. . . . . . . 8 ⊢ (𝑎:ℂ⟶ℂ → 𝑎 Fn ℂ)
48	3, 46, 47	3syl 18	. . . . . . 7 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → 𝑎 Fn ℂ)
49		cnex 11109	. . . . . . . 8 ⊢ ℂ ∈ V
50	49	a1i 11	. . . . . . 7 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → ℂ ∈ V)
51		inidm 4180	. . . . . . 7 ⊢ (ℂ ∩ ℂ) = ℂ
52	43	fvconst2 7144	. . . . . . . 8 ⊢ (𝐴 ∈ ℂ → ((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))})‘𝐴) = (1 / ((coeff‘𝑎)‘(deg‘𝑎))))
53	52	adantl 481	. . . . . . 7 ⊢ ((((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) ∧ 𝐴 ∈ ℂ) → ((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))})‘𝐴) = (1 / ((coeff‘𝑎)‘(deg‘𝑎))))
54		simplrr 777	. . . . . . 7 ⊢ ((((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) ∧ 𝐴 ∈ ℂ) → (𝑎‘𝐴) = 0)
55	45, 48, 50, 50, 51, 53, 54	ofval 7628	. . . . . 6 ⊢ ((((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) ∧ 𝐴 ∈ ℂ) → (((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎)‘𝐴) = ((1 / ((coeff‘𝑎)‘(deg‘𝑎))) · 0))
56	42, 55	mpdan 687	. . . . 5 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → (((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎)‘𝐴) = ((1 / ((coeff‘𝑎)‘(deg‘𝑎))) · 0))
57	35	mul01d 11333	. . . . 5 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → ((1 / ((coeff‘𝑎)‘(deg‘𝑎))) · 0) = 0)
58	56, 57	eqtrd 2764	. . . 4 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → (((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎)‘𝐴) = 0)
59		coemulc 26176	. . . . . . 7 ⊢ (((1 / ((coeff‘𝑎)‘(deg‘𝑎))) ∈ ℂ ∧ 𝑎 ∈ (Poly‘ℚ)) → (coeff‘((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎)) = ((ℕ0 × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · (coeff‘𝑎)))
60	35, 3, 59	syl2anc 584	. . . . . 6 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → (coeff‘((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎)) = ((ℕ0 × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · (coeff‘𝑎)))
61	60	fveq1d 6828	. . . . 5 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → ((coeff‘((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎))‘(degAA‘𝐴)) = (((ℕ0 × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · (coeff‘𝑎))‘(degAA‘𝐴)))
62		dgraacl 43119	. . . . . . . 8 ⊢ (𝐴 ∈ 𝔸 → (degAA‘𝐴) ∈ ℕ)
63	62	ad2antrr 726	. . . . . . 7 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → (degAA‘𝐴) ∈ ℕ)
64	63	nnnn0d 12463	. . . . . 6 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → (degAA‘𝐴) ∈ ℕ0)
65		fnconstg 6716	. . . . . . . 8 ⊢ ((1 / ((coeff‘𝑎)‘(deg‘𝑎))) ∈ V → (ℕ0 × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) Fn ℕ0)
66	43, 65	mp1i 13	. . . . . . 7 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → (ℕ0 × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) Fn ℕ0)
67	33	ffnd 6657	. . . . . . 7 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → (coeff‘𝑎) Fn ℕ0)
68		nn0ex 12408	. . . . . . . 8 ⊢ ℕ0 ∈ V
69	68	a1i 11	. . . . . . 7 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → ℕ0 ∈ V)
70		inidm 4180	. . . . . . 7 ⊢ (ℕ0 ∩ ℕ0) = ℕ0
71	43	fvconst2 7144	. . . . . . . 8 ⊢ ((degAA‘𝐴) ∈ ℕ0 → ((ℕ0 × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))})‘(degAA‘𝐴)) = (1 / ((coeff‘𝑎)‘(deg‘𝑎))))
72	71	adantl 481	. . . . . . 7 ⊢ ((((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) ∧ (degAA‘𝐴) ∈ ℕ0) → ((ℕ0 × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))})‘(degAA‘𝐴)) = (1 / ((coeff‘𝑎)‘(deg‘𝑎))))
73		simplrl 776	. . . . . . . . 9 ⊢ ((((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) ∧ (degAA‘𝐴) ∈ ℕ0) → (deg‘𝑎) = (degAA‘𝐴))
74	73	eqcomd 2735	. . . . . . . 8 ⊢ ((((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) ∧ (degAA‘𝐴) ∈ ℕ0) → (degAA‘𝐴) = (deg‘𝑎))
75	74	fveq2d 6830	. . . . . . 7 ⊢ ((((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) ∧ (degAA‘𝐴) ∈ ℕ0) → ((coeff‘𝑎)‘(degAA‘𝐴)) = ((coeff‘𝑎)‘(deg‘𝑎)))
76	66, 67, 69, 69, 70, 72, 75	ofval 7628	. . . . . 6 ⊢ ((((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) ∧ (degAA‘𝐴) ∈ ℕ0) → (((ℕ0 × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · (coeff‘𝑎))‘(degAA‘𝐴)) = ((1 / ((coeff‘𝑎)‘(deg‘𝑎))) · ((coeff‘𝑎)‘(deg‘𝑎))))
77	64, 76	mpdan 687	. . . . 5 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → (((ℕ0 × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · (coeff‘𝑎))‘(degAA‘𝐴)) = ((1 / ((coeff‘𝑎)‘(deg‘𝑎))) · ((coeff‘𝑎)‘(deg‘𝑎))))
78	34, 19	recid2d 11914	. . . . 5 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → ((1 / ((coeff‘𝑎)‘(deg‘𝑎))) · ((coeff‘𝑎)‘(deg‘𝑎))) = 1)
79	61, 77, 78	3eqtrd 2768	. . . 4 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → ((coeff‘((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎))‘(degAA‘𝐴)) = 1)
80		fveqeq2 6835	. . . . . 6 ⊢ (𝑝 = ((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎) → ((deg‘𝑝) = (degAA‘𝐴) ↔ (deg‘((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎)) = (degAA‘𝐴)))
81		fveq1 6825	. . . . . . 7 ⊢ (𝑝 = ((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎) → (𝑝‘𝐴) = (((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎)‘𝐴))
82	81	eqeq1d 2731	. . . . . 6 ⊢ (𝑝 = ((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎) → ((𝑝‘𝐴) = 0 ↔ (((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎)‘𝐴) = 0))
83		fveq2 6826	. . . . . . . 8 ⊢ (𝑝 = ((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎) → (coeff‘𝑝) = (coeff‘((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎)))
84	83	fveq1d 6828	. . . . . . 7 ⊢ (𝑝 = ((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎) → ((coeff‘𝑝)‘(degAA‘𝐴)) = ((coeff‘((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎))‘(degAA‘𝐴)))
85	84	eqeq1d 2731	. . . . . 6 ⊢ (𝑝 = ((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎) → (((coeff‘𝑝)‘(degAA‘𝐴)) = 1 ↔ ((coeff‘((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎))‘(degAA‘𝐴)) = 1))
86	80, 82, 85	3anbi123d 1438	. . . . 5 ⊢ (𝑝 = ((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎) → (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ↔ ((deg‘((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎)) = (degAA‘𝐴) ∧ (((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎)‘𝐴) = 0 ∧ ((coeff‘((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎))‘(degAA‘𝐴)) = 1)))
87	86	rspcev 3579	. . . 4 ⊢ ((((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎) ∈ (Poly‘ℚ) ∧ ((deg‘((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎)) = (degAA‘𝐴) ∧ (((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎)‘𝐴) = 0 ∧ ((coeff‘((ℂ × {(1 / ((coeff‘𝑎)‘(deg‘𝑎)))}) ∘f · 𝑎))‘(degAA‘𝐴)) = 1)) → ∃𝑝 ∈ (Poly‘ℚ)((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1))
88	31, 40, 58, 79, 87	syl13anc 1374	. . 3 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)) → ∃𝑝 ∈ (Poly‘ℚ)((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1))
89		dgraalem 43118	. . . 4 ⊢ (𝐴 ∈ 𝔸 → ((degAA‘𝐴) ∈ ℕ ∧ ∃𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0)))
90	89	simprd 495	. . 3 ⊢ (𝐴 ∈ 𝔸 → ∃𝑎 ∈ ((Poly‘ℚ) ∖ {0𝑝})((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0))
91	88, 90	r19.29a 3137	. 2 ⊢ (𝐴 ∈ 𝔸 → ∃𝑝 ∈ (Poly‘ℚ)((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1))
92		simp2 1137	. . . . . . . . . . 11 ⊢ (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) → (𝑝‘𝐴) = 0)
93		simp2 1137	. . . . . . . . . . 11 ⊢ (((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1) → (𝑎‘𝐴) = 0)
94	92, 93	anim12i 613	. . . . . . . . . 10 ⊢ ((((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1)) → ((𝑝‘𝐴) = 0 ∧ (𝑎‘𝐴) = 0))
95		plyf 26119	. . . . . . . . . . . . . . . 16 ⊢ (𝑝 ∈ (Poly‘ℚ) → 𝑝:ℂ⟶ℂ)
96	95	ffnd 6657	. . . . . . . . . . . . . . 15 ⊢ (𝑝 ∈ (Poly‘ℚ) → 𝑝 Fn ℂ)
97	96	ad2antrr 726	. . . . . . . . . . . . . 14 ⊢ (((𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ)) ∧ ((𝑝‘𝐴) = 0 ∧ (𝑎‘𝐴) = 0)) → 𝑝 Fn ℂ)
98	46	ffnd 6657	. . . . . . . . . . . . . . 15 ⊢ (𝑎 ∈ (Poly‘ℚ) → 𝑎 Fn ℂ)
99	98	ad2antlr 727	. . . . . . . . . . . . . 14 ⊢ (((𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ)) ∧ ((𝑝‘𝐴) = 0 ∧ (𝑎‘𝐴) = 0)) → 𝑎 Fn ℂ)
100	49	a1i 11	. . . . . . . . . . . . . 14 ⊢ (((𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ)) ∧ ((𝑝‘𝐴) = 0 ∧ (𝑎‘𝐴) = 0)) → ℂ ∈ V)
101		simplrl 776	. . . . . . . . . . . . . 14 ⊢ ((((𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ)) ∧ ((𝑝‘𝐴) = 0 ∧ (𝑎‘𝐴) = 0)) ∧ 𝐴 ∈ ℂ) → (𝑝‘𝐴) = 0)
102		simplrr 777	. . . . . . . . . . . . . 14 ⊢ ((((𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ)) ∧ ((𝑝‘𝐴) = 0 ∧ (𝑎‘𝐴) = 0)) ∧ 𝐴 ∈ ℂ) → (𝑎‘𝐴) = 0)
103	97, 99, 100, 100, 51, 101, 102	ofval 7628	. . . . . . . . . . . . 13 ⊢ ((((𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ)) ∧ ((𝑝‘𝐴) = 0 ∧ (𝑎‘𝐴) = 0)) ∧ 𝐴 ∈ ℂ) → ((𝑝 ∘f − 𝑎)‘𝐴) = (0 − 0))
104	41, 103	sylan2 593	. . . . . . . . . . . 12 ⊢ ((((𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ)) ∧ ((𝑝‘𝐴) = 0 ∧ (𝑎‘𝐴) = 0)) ∧ 𝐴 ∈ 𝔸) → ((𝑝 ∘f − 𝑎)‘𝐴) = (0 − 0))
105		0m0e0 12261	. . . . . . . . . . . 12 ⊢ (0 − 0) = 0
106	104, 105	eqtrdi 2780	. . . . . . . . . . 11 ⊢ ((((𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ)) ∧ ((𝑝‘𝐴) = 0 ∧ (𝑎‘𝐴) = 0)) ∧ 𝐴 ∈ 𝔸) → ((𝑝 ∘f − 𝑎)‘𝐴) = 0)
107	106	ex 412	. . . . . . . . . 10 ⊢ (((𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ)) ∧ ((𝑝‘𝐴) = 0 ∧ (𝑎‘𝐴) = 0)) → (𝐴 ∈ 𝔸 → ((𝑝 ∘f − 𝑎)‘𝐴) = 0))
108	94, 107	sylan2 593	. . . . . . . . 9 ⊢ (((𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ)) ∧ (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1))) → (𝐴 ∈ 𝔸 → ((𝑝 ∘f − 𝑎)‘𝐴) = 0))
109	108	com12 32	. . . . . . . 8 ⊢ (𝐴 ∈ 𝔸 → (((𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ)) ∧ (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1))) → ((𝑝 ∘f − 𝑎)‘𝐴) = 0))
110	109	impl 455	. . . . . . 7 ⊢ (((𝐴 ∈ 𝔸 ∧ (𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ))) ∧ (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1))) → ((𝑝 ∘f − 𝑎)‘𝐴) = 0)
111		simpll 766	. . . . . . . 8 ⊢ (((𝐴 ∈ 𝔸 ∧ (𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ))) ∧ (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1))) → 𝐴 ∈ 𝔸)
112		simpl 482	. . . . . . . . . 10 ⊢ ((𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ)) → 𝑝 ∈ (Poly‘ℚ))
113		simpr 484	. . . . . . . . . 10 ⊢ ((𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ)) → 𝑎 ∈ (Poly‘ℚ))
114	26	adantl 481	. . . . . . . . . 10 ⊢ (((𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ)) ∧ (𝑏 ∈ ℚ ∧ 𝑐 ∈ ℚ)) → (𝑏 + 𝑐) ∈ ℚ)
115	28	adantl 481	. . . . . . . . . 10 ⊢ (((𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ)) ∧ (𝑏 ∈ ℚ ∧ 𝑐 ∈ ℚ)) → (𝑏 · 𝑐) ∈ ℚ)
116		1z 12523	. . . . . . . . . . . 12 ⊢ 1 ∈ ℤ
117		zq 12873	. . . . . . . . . . . 12 ⊢ (1 ∈ ℤ → 1 ∈ ℚ)
118		qnegcl 12885	. . . . . . . . . . . 12 ⊢ (1 ∈ ℚ → -1 ∈ ℚ)
119	116, 117, 118	mp2b 10	. . . . . . . . . . 11 ⊢ -1 ∈ ℚ
120	119	a1i 11	. . . . . . . . . 10 ⊢ ((𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ)) → -1 ∈ ℚ)
121	112, 113, 114, 115, 120	plysub 26140	. . . . . . . . 9 ⊢ ((𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ)) → (𝑝 ∘f − 𝑎) ∈ (Poly‘ℚ))
122	121	ad2antlr 727	. . . . . . . 8 ⊢ (((𝐴 ∈ 𝔸 ∧ (𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ))) ∧ (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1))) → (𝑝 ∘f − 𝑎) ∈ (Poly‘ℚ))
123		simplrl 776	. . . . . . . . . 10 ⊢ (((𝐴 ∈ 𝔸 ∧ (𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ))) ∧ (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1))) → 𝑝 ∈ (Poly‘ℚ))
124		simplrr 777	. . . . . . . . . 10 ⊢ (((𝐴 ∈ 𝔸 ∧ (𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ))) ∧ (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1))) → 𝑎 ∈ (Poly‘ℚ))
125		simprr1 1222	. . . . . . . . . . 11 ⊢ (((𝐴 ∈ 𝔸 ∧ (𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ))) ∧ (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1))) → (deg‘𝑎) = (degAA‘𝐴))
126		simprl1 1219	. . . . . . . . . . 11 ⊢ (((𝐴 ∈ 𝔸 ∧ (𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ))) ∧ (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1))) → (deg‘𝑝) = (degAA‘𝐴))
127	125, 126	eqtr4d 2767	. . . . . . . . . 10 ⊢ (((𝐴 ∈ 𝔸 ∧ (𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ))) ∧ (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1))) → (deg‘𝑎) = (deg‘𝑝))
128	62	ad2antrr 726	. . . . . . . . . . 11 ⊢ (((𝐴 ∈ 𝔸 ∧ (𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ))) ∧ (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1))) → (degAA‘𝐴) ∈ ℕ)
129	126, 128	eqeltrd 2828	. . . . . . . . . 10 ⊢ (((𝐴 ∈ 𝔸 ∧ (𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ))) ∧ (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1))) → (deg‘𝑝) ∈ ℕ)
130		simprl3 1221	. . . . . . . . . . 11 ⊢ (((𝐴 ∈ 𝔸 ∧ (𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ))) ∧ (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1))) → ((coeff‘𝑝)‘(degAA‘𝐴)) = 1)
131	126	fveq2d 6830	. . . . . . . . . . 11 ⊢ (((𝐴 ∈ 𝔸 ∧ (𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ))) ∧ (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1))) → ((coeff‘𝑝)‘(deg‘𝑝)) = ((coeff‘𝑝)‘(degAA‘𝐴)))
132	126	fveq2d 6830	. . . . . . . . . . . 12 ⊢ (((𝐴 ∈ 𝔸 ∧ (𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ))) ∧ (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1))) → ((coeff‘𝑎)‘(deg‘𝑝)) = ((coeff‘𝑎)‘(degAA‘𝐴)))
133		simprr3 1224	. . . . . . . . . . . 12 ⊢ (((𝐴 ∈ 𝔸 ∧ (𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ))) ∧ (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1))) → ((coeff‘𝑎)‘(degAA‘𝐴)) = 1)
134	132, 133	eqtrd 2764	. . . . . . . . . . 11 ⊢ (((𝐴 ∈ 𝔸 ∧ (𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ))) ∧ (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1))) → ((coeff‘𝑎)‘(deg‘𝑝)) = 1)
135	130, 131, 134	3eqtr4d 2774	. . . . . . . . . 10 ⊢ (((𝐴 ∈ 𝔸 ∧ (𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ))) ∧ (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1))) → ((coeff‘𝑝)‘(deg‘𝑝)) = ((coeff‘𝑎)‘(deg‘𝑝)))
136		eqid 2729	. . . . . . . . . . 11 ⊢ (deg‘𝑝) = (deg‘𝑝)
137	136	dgrsub2 43108	. . . . . . . . . 10 ⊢ (((𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ)) ∧ ((deg‘𝑎) = (deg‘𝑝) ∧ (deg‘𝑝) ∈ ℕ ∧ ((coeff‘𝑝)‘(deg‘𝑝)) = ((coeff‘𝑎)‘(deg‘𝑝)))) → (deg‘(𝑝 ∘f − 𝑎)) < (deg‘𝑝))
138	123, 124, 127, 129, 135, 137	syl23anc 1379	. . . . . . . . 9 ⊢ (((𝐴 ∈ 𝔸 ∧ (𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ))) ∧ (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1))) → (deg‘(𝑝 ∘f − 𝑎)) < (deg‘𝑝))
139	138, 126	breqtrd 5121	. . . . . . . 8 ⊢ (((𝐴 ∈ 𝔸 ∧ (𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ))) ∧ (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1))) → (deg‘(𝑝 ∘f − 𝑎)) < (degAA‘𝐴))
140		dgraa0p 43122	. . . . . . . 8 ⊢ ((𝐴 ∈ 𝔸 ∧ (𝑝 ∘f − 𝑎) ∈ (Poly‘ℚ) ∧ (deg‘(𝑝 ∘f − 𝑎)) < (degAA‘𝐴)) → (((𝑝 ∘f − 𝑎)‘𝐴) = 0 ↔ (𝑝 ∘f − 𝑎) = 0𝑝))
141	111, 122, 139, 140	syl3anc 1373	. . . . . . 7 ⊢ (((𝐴 ∈ 𝔸 ∧ (𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ))) ∧ (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1))) → (((𝑝 ∘f − 𝑎)‘𝐴) = 0 ↔ (𝑝 ∘f − 𝑎) = 0𝑝))
142	110, 141	mpbid 232	. . . . . 6 ⊢ (((𝐴 ∈ 𝔸 ∧ (𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ))) ∧ (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1))) → (𝑝 ∘f − 𝑎) = 0𝑝)
143		df-0p 25587	. . . . . 6 ⊢ 0𝑝 = (ℂ × {0})
144	142, 143	eqtrdi 2780	. . . . 5 ⊢ (((𝐴 ∈ 𝔸 ∧ (𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ))) ∧ (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1))) → (𝑝 ∘f − 𝑎) = (ℂ × {0}))
145		ofsubeq0 12143	. . . . . . . 8 ⊢ ((ℂ ∈ V ∧ 𝑝:ℂ⟶ℂ ∧ 𝑎:ℂ⟶ℂ) → ((𝑝 ∘f − 𝑎) = (ℂ × {0}) ↔ 𝑝 = 𝑎))
146	49, 145	mp3an1 1450	. . . . . . 7 ⊢ ((𝑝:ℂ⟶ℂ ∧ 𝑎:ℂ⟶ℂ) → ((𝑝 ∘f − 𝑎) = (ℂ × {0}) ↔ 𝑝 = 𝑎))
147	95, 46, 146	syl2an 596	. . . . . 6 ⊢ ((𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ)) → ((𝑝 ∘f − 𝑎) = (ℂ × {0}) ↔ 𝑝 = 𝑎))
148	147	ad2antlr 727	. . . . 5 ⊢ (((𝐴 ∈ 𝔸 ∧ (𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ))) ∧ (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1))) → ((𝑝 ∘f − 𝑎) = (ℂ × {0}) ↔ 𝑝 = 𝑎))
149	144, 148	mpbid 232	. . . 4 ⊢ (((𝐴 ∈ 𝔸 ∧ (𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ))) ∧ (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1))) → 𝑝 = 𝑎)
150	149	ex 412	. . 3 ⊢ ((𝐴 ∈ 𝔸 ∧ (𝑝 ∈ (Poly‘ℚ) ∧ 𝑎 ∈ (Poly‘ℚ))) → ((((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1)) → 𝑝 = 𝑎))
151	150	ralrimivva 3172	. 2 ⊢ (𝐴 ∈ 𝔸 → ∀𝑝 ∈ (Poly‘ℚ)∀𝑎 ∈ (Poly‘ℚ)((((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1)) → 𝑝 = 𝑎))
152		fveqeq2 6835	. . . 4 ⊢ (𝑝 = 𝑎 → ((deg‘𝑝) = (degAA‘𝐴) ↔ (deg‘𝑎) = (degAA‘𝐴)))
153		fveq1 6825	. . . . 5 ⊢ (𝑝 = 𝑎 → (𝑝‘𝐴) = (𝑎‘𝐴))
154	153	eqeq1d 2731	. . . 4 ⊢ (𝑝 = 𝑎 → ((𝑝‘𝐴) = 0 ↔ (𝑎‘𝐴) = 0))
155		fveq2 6826	. . . . . 6 ⊢ (𝑝 = 𝑎 → (coeff‘𝑝) = (coeff‘𝑎))
156	155	fveq1d 6828	. . . . 5 ⊢ (𝑝 = 𝑎 → ((coeff‘𝑝)‘(degAA‘𝐴)) = ((coeff‘𝑎)‘(degAA‘𝐴)))
157	156	eqeq1d 2731	. . . 4 ⊢ (𝑝 = 𝑎 → (((coeff‘𝑝)‘(degAA‘𝐴)) = 1 ↔ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1))
158	152, 154, 157	3anbi123d 1438	. . 3 ⊢ (𝑝 = 𝑎 → (((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ↔ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1)))
159	158	reu4 3693	. 2 ⊢ (∃!𝑝 ∈ (Poly‘ℚ)((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ↔ (∃𝑝 ∈ (Poly‘ℚ)((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ∀𝑝 ∈ (Poly‘ℚ)∀𝑎 ∈ (Poly‘ℚ)((((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1) ∧ ((deg‘𝑎) = (degAA‘𝐴) ∧ (𝑎‘𝐴) = 0 ∧ ((coeff‘𝑎)‘(degAA‘𝐴)) = 1)) → 𝑝 = 𝑎)))
160	91, 151, 159	sylanbrc 583	1 ⊢ (𝐴 ∈ 𝔸 → ∃!𝑝 ∈ (Poly‘ℚ)((deg‘𝑝) = (degAA‘𝐴) ∧ (𝑝‘𝐴) = 0 ∧ ((coeff‘𝑝)‘(degAA‘𝐴)) = 1))

Syntax hints:   → wi 4   ↔ wb 206   ∧ wa 395   ∧ w3a 1086   = wceq 1540   ∈ wcel 2109   ≠ wne 2925  ∀wral 3044  ∃wrex 3053  ∃!wreu 3343  Vcvv 3438   ∖ cdif 3902   ⊆ wss 3905  {csn 4579   class class class wbr 5095   × cxp 5621   Fn wfn 6481  ⟶wf 6482  ‘cfv 6486  (class class class)co 7353   ∘_f cof 7615  ℂcc 11026  0cc0 11028  1c1 11029   + caddc 11031   · cmul 11033   < clt 11168   − cmin 11365  -cneg 11366   / cdiv 11795  ℕcn 12146  ℕ₀cn0 12402  ℤcz 12489  ℚcq 12867  0_𝑝c0p 25586  Polycply 26105  coeffccoe 26107  degcdgr 26108  𝔸caa 26238  deg_AAcdgraa 43113

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2008  ax-8 2111  ax-9 2119  ax-10 2142  ax-11 2158  ax-12 2178  ax-ext 2701  ax-rep 5221  ax-sep 5238  ax-nul 5248  ax-pow 5307  ax-pr 5374  ax-un 7675  ax-inf2 9556  ax-cnex 11084  ax-resscn 11085  ax-1cn 11086  ax-icn 11087  ax-addcl 11088  ax-addrcl 11089  ax-mulcl 11090  ax-mulrcl 11091  ax-mulcom 11092  ax-addass 11093  ax-mulass 11094  ax-distr 11095  ax-i2m1 11096  ax-1ne0 11097  ax-1rid 11098  ax-rnegex 11099  ax-rrecex 11100  ax-cnre 11101  ax-pre-lttri 11102  ax-pre-lttrn 11103  ax-pre-ltadd 11104  ax-pre-mulgt0 11105  ax-pre-sup 11106

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3or 1087  df-3an 1088  df-tru 1543  df-fal 1553  df-ex 1780  df-nf 1784  df-sb 2066  df-mo 2533  df-eu 2562  df-clab 2708  df-cleq 2721  df-clel 2803  df-nfc 2878  df-ne 2926  df-nel 3030  df-ral 3045  df-rex 3054  df-rmo 3345  df-reu 3346  df-rab 3397  df-v 3440  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 4479  df-pw 4555  df-sn 4580  df-pr 4582  df-op 4586  df-uni 4862  df-int 4900  df-iun 4946  df-br 5096  df-opab 5158  df-mpt 5177  df-tr 5203  df-id 5518  df-eprel 5523  df-po 5531  df-so 5532  df-fr 5576  df-se 5577  df-we 5578  df-xp 5629  df-rel 5630  df-cnv 5631  df-co 5632  df-dm 5633  df-rn 5634  df-res 5635  df-ima 5636  df-pred 6253  df-ord 6314  df-on 6315  df-lim 6316  df-suc 6317  df-iota 6442  df-fun 6488  df-fn 6489  df-f 6490  df-f1 6491  df-fo 6492  df-f1o 6493  df-fv 6494  df-isom 6495  df-riota 7310  df-ov 7356  df-oprab 7357  df-mpo 7358  df-of 7617  df-om 7807  df-1st 7931  df-2nd 7932  df-frecs 8221  df-wrecs 8252  df-recs 8301  df-rdg 8339  df-1o 8395  df-er 8632  df-map 8762  df-pm 8763  df-en 8880  df-dom 8881  df-sdom 8882  df-fin 8883  df-sup 9351  df-inf 9352  df-oi 9421  df-card 9854  df-pnf 11170  df-mnf 11171  df-xr 11172  df-ltxr 11173  df-le 11174  df-sub 11367  df-neg 11368  df-div 11796  df-nn 12147  df-2 12209  df-3 12210  df-n0 12403  df-z 12490  df-uz 12754  df-q 12868  df-rp 12912  df-fz 13429  df-fzo 13576  df-fl 13714  df-mod 13792  df-seq 13927  df-exp 13987  df-hash 14256  df-cj 15024  df-re 15025  df-im 15026  df-sqrt 15160  df-abs 15161  df-clim 15413  df-rlim 15414  df-sum 15612  df-0p 25587  df-ply 26109  df-coe 26111  df-dgr 26112  df-aa 26239  df-dgraa 43115

This theorem is referenced by:  mpaalem  43125