Step | Hyp | Ref
| Expression |
1 | | aalioulem1.a |
. . . . 5
⊢ (𝜑 → 𝐹 ∈
(Poly‘ℤ)) |
2 | | aalioulem1.b |
. . . . . . 7
⊢ (𝜑 → 𝑋 ∈ ℤ) |
3 | 2 | zcnd 12427 |
. . . . . 6
⊢ (𝜑 → 𝑋 ∈ ℂ) |
4 | | aalioulem1.c |
. . . . . . 7
⊢ (𝜑 → 𝑌 ∈ ℕ) |
5 | 4 | nncnd 11989 |
. . . . . 6
⊢ (𝜑 → 𝑌 ∈ ℂ) |
6 | 4 | nnne0d 12023 |
. . . . . 6
⊢ (𝜑 → 𝑌 ≠ 0) |
7 | 3, 5, 6 | divcld 11751 |
. . . . 5
⊢ (𝜑 → (𝑋 / 𝑌) ∈ ℂ) |
8 | | eqid 2738 |
. . . . . 6
⊢
(coeff‘𝐹) =
(coeff‘𝐹) |
9 | | eqid 2738 |
. . . . . 6
⊢
(deg‘𝐹) =
(deg‘𝐹) |
10 | 8, 9 | coeid2 25400 |
. . . . 5
⊢ ((𝐹 ∈ (Poly‘ℤ)
∧ (𝑋 / 𝑌) ∈ ℂ) → (𝐹‘(𝑋 / 𝑌)) = Σ𝑎 ∈ (0...(deg‘𝐹))(((coeff‘𝐹)‘𝑎) · ((𝑋 / 𝑌)↑𝑎))) |
11 | 1, 7, 10 | syl2anc 584 |
. . . 4
⊢ (𝜑 → (𝐹‘(𝑋 / 𝑌)) = Σ𝑎 ∈ (0...(deg‘𝐹))(((coeff‘𝐹)‘𝑎) · ((𝑋 / 𝑌)↑𝑎))) |
12 | 11 | oveq1d 7290 |
. . 3
⊢ (𝜑 → ((𝐹‘(𝑋 / 𝑌)) · (𝑌↑(deg‘𝐹))) = (Σ𝑎 ∈ (0...(deg‘𝐹))(((coeff‘𝐹)‘𝑎) · ((𝑋 / 𝑌)↑𝑎)) · (𝑌↑(deg‘𝐹)))) |
13 | | fzfid 13693 |
. . . 4
⊢ (𝜑 → (0...(deg‘𝐹)) ∈ Fin) |
14 | | dgrcl 25394 |
. . . . . 6
⊢ (𝐹 ∈ (Poly‘ℤ)
→ (deg‘𝐹) ∈
ℕ0) |
15 | 1, 14 | syl 17 |
. . . . 5
⊢ (𝜑 → (deg‘𝐹) ∈
ℕ0) |
16 | 5, 15 | expcld 13864 |
. . . 4
⊢ (𝜑 → (𝑌↑(deg‘𝐹)) ∈ ℂ) |
17 | | 0z 12330 |
. . . . . . . 8
⊢ 0 ∈
ℤ |
18 | 8 | coef2 25392 |
. . . . . . . 8
⊢ ((𝐹 ∈ (Poly‘ℤ)
∧ 0 ∈ ℤ) → (coeff‘𝐹):ℕ0⟶ℤ) |
19 | 1, 17, 18 | sylancl 586 |
. . . . . . 7
⊢ (𝜑 → (coeff‘𝐹):ℕ0⟶ℤ) |
20 | | elfznn0 13349 |
. . . . . . 7
⊢ (𝑎 ∈ (0...(deg‘𝐹)) → 𝑎 ∈ ℕ0) |
21 | | ffvelrn 6959 |
. . . . . . 7
⊢
(((coeff‘𝐹):ℕ0⟶ℤ ∧
𝑎 ∈
ℕ0) → ((coeff‘𝐹)‘𝑎) ∈ ℤ) |
22 | 19, 20, 21 | syl2an 596 |
. . . . . 6
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → ((coeff‘𝐹)‘𝑎) ∈ ℤ) |
23 | 22 | zcnd 12427 |
. . . . 5
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → ((coeff‘𝐹)‘𝑎) ∈ ℂ) |
24 | | expcl 13800 |
. . . . . 6
⊢ (((𝑋 / 𝑌) ∈ ℂ ∧ 𝑎 ∈ ℕ0) → ((𝑋 / 𝑌)↑𝑎) ∈ ℂ) |
25 | 7, 20, 24 | syl2an 596 |
. . . . 5
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → ((𝑋 / 𝑌)↑𝑎) ∈ ℂ) |
26 | 23, 25 | mulcld 10995 |
. . . 4
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → (((coeff‘𝐹)‘𝑎) · ((𝑋 / 𝑌)↑𝑎)) ∈ ℂ) |
27 | 13, 16, 26 | fsummulc1 15497 |
. . 3
⊢ (𝜑 → (Σ𝑎 ∈ (0...(deg‘𝐹))(((coeff‘𝐹)‘𝑎) · ((𝑋 / 𝑌)↑𝑎)) · (𝑌↑(deg‘𝐹))) = Σ𝑎 ∈ (0...(deg‘𝐹))((((coeff‘𝐹)‘𝑎) · ((𝑋 / 𝑌)↑𝑎)) · (𝑌↑(deg‘𝐹)))) |
28 | 12, 27 | eqtrd 2778 |
. 2
⊢ (𝜑 → ((𝐹‘(𝑋 / 𝑌)) · (𝑌↑(deg‘𝐹))) = Σ𝑎 ∈ (0...(deg‘𝐹))((((coeff‘𝐹)‘𝑎) · ((𝑋 / 𝑌)↑𝑎)) · (𝑌↑(deg‘𝐹)))) |
29 | 5 | adantr 481 |
. . . . . 6
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → 𝑌 ∈ ℂ) |
30 | 15 | adantr 481 |
. . . . . 6
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → (deg‘𝐹) ∈
ℕ0) |
31 | 29, 30 | expcld 13864 |
. . . . 5
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → (𝑌↑(deg‘𝐹)) ∈ ℂ) |
32 | 23, 25, 31 | mulassd 10998 |
. . . 4
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → ((((coeff‘𝐹)‘𝑎) · ((𝑋 / 𝑌)↑𝑎)) · (𝑌↑(deg‘𝐹))) = (((coeff‘𝐹)‘𝑎) · (((𝑋 / 𝑌)↑𝑎) · (𝑌↑(deg‘𝐹))))) |
33 | 2 | adantr 481 |
. . . . . . . . . 10
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → 𝑋 ∈ ℤ) |
34 | 33 | zcnd 12427 |
. . . . . . . . 9
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → 𝑋 ∈ ℂ) |
35 | 6 | adantr 481 |
. . . . . . . . 9
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → 𝑌 ≠ 0) |
36 | 20 | adantl 482 |
. . . . . . . . 9
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → 𝑎 ∈ ℕ0) |
37 | 34, 29, 35, 36 | expdivd 13878 |
. . . . . . . 8
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → ((𝑋 / 𝑌)↑𝑎) = ((𝑋↑𝑎) / (𝑌↑𝑎))) |
38 | 37 | oveq1d 7290 |
. . . . . . 7
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → (((𝑋 / 𝑌)↑𝑎) · (𝑌↑(deg‘𝐹))) = (((𝑋↑𝑎) / (𝑌↑𝑎)) · (𝑌↑(deg‘𝐹)))) |
39 | 34, 36 | expcld 13864 |
. . . . . . . 8
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → (𝑋↑𝑎) ∈ ℂ) |
40 | | nnexpcl 13795 |
. . . . . . . . . 10
⊢ ((𝑌 ∈ ℕ ∧ 𝑎 ∈ ℕ0)
→ (𝑌↑𝑎) ∈
ℕ) |
41 | 4, 20, 40 | syl2an 596 |
. . . . . . . . 9
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → (𝑌↑𝑎) ∈ ℕ) |
42 | 41 | nncnd 11989 |
. . . . . . . 8
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → (𝑌↑𝑎) ∈ ℂ) |
43 | 41 | nnne0d 12023 |
. . . . . . . 8
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → (𝑌↑𝑎) ≠ 0) |
44 | 39, 42, 31, 43 | div13d 11775 |
. . . . . . 7
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → (((𝑋↑𝑎) / (𝑌↑𝑎)) · (𝑌↑(deg‘𝐹))) = (((𝑌↑(deg‘𝐹)) / (𝑌↑𝑎)) · (𝑋↑𝑎))) |
45 | 38, 44 | eqtrd 2778 |
. . . . . 6
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → (((𝑋 / 𝑌)↑𝑎) · (𝑌↑(deg‘𝐹))) = (((𝑌↑(deg‘𝐹)) / (𝑌↑𝑎)) · (𝑋↑𝑎))) |
46 | | elfzelz 13256 |
. . . . . . . . . 10
⊢ (𝑎 ∈ (0...(deg‘𝐹)) → 𝑎 ∈ ℤ) |
47 | 46 | adantl 482 |
. . . . . . . . 9
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → 𝑎 ∈ ℤ) |
48 | 30 | nn0zd 12424 |
. . . . . . . . 9
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → (deg‘𝐹) ∈ ℤ) |
49 | 29, 35, 47, 48 | expsubd 13875 |
. . . . . . . 8
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → (𝑌↑((deg‘𝐹) − 𝑎)) = ((𝑌↑(deg‘𝐹)) / (𝑌↑𝑎))) |
50 | 4 | adantr 481 |
. . . . . . . . . 10
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → 𝑌 ∈ ℕ) |
51 | 50 | nnzd 12425 |
. . . . . . . . 9
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → 𝑌 ∈ ℤ) |
52 | | fznn0sub 13288 |
. . . . . . . . . 10
⊢ (𝑎 ∈ (0...(deg‘𝐹)) → ((deg‘𝐹) − 𝑎) ∈
ℕ0) |
53 | 52 | adantl 482 |
. . . . . . . . 9
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → ((deg‘𝐹) − 𝑎) ∈
ℕ0) |
54 | | zexpcl 13797 |
. . . . . . . . 9
⊢ ((𝑌 ∈ ℤ ∧
((deg‘𝐹) −
𝑎) ∈
ℕ0) → (𝑌↑((deg‘𝐹) − 𝑎)) ∈ ℤ) |
55 | 51, 53, 54 | syl2anc 584 |
. . . . . . . 8
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → (𝑌↑((deg‘𝐹) − 𝑎)) ∈ ℤ) |
56 | 49, 55 | eqeltrrd 2840 |
. . . . . . 7
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → ((𝑌↑(deg‘𝐹)) / (𝑌↑𝑎)) ∈ ℤ) |
57 | | zexpcl 13797 |
. . . . . . . 8
⊢ ((𝑋 ∈ ℤ ∧ 𝑎 ∈ ℕ0)
→ (𝑋↑𝑎) ∈
ℤ) |
58 | 2, 20, 57 | syl2an 596 |
. . . . . . 7
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → (𝑋↑𝑎) ∈ ℤ) |
59 | 56, 58 | zmulcld 12432 |
. . . . . 6
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → (((𝑌↑(deg‘𝐹)) / (𝑌↑𝑎)) · (𝑋↑𝑎)) ∈ ℤ) |
60 | 45, 59 | eqeltrd 2839 |
. . . . 5
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → (((𝑋 / 𝑌)↑𝑎) · (𝑌↑(deg‘𝐹))) ∈ ℤ) |
61 | 22, 60 | zmulcld 12432 |
. . . 4
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → (((coeff‘𝐹)‘𝑎) · (((𝑋 / 𝑌)↑𝑎) · (𝑌↑(deg‘𝐹)))) ∈ ℤ) |
62 | 32, 61 | eqeltrd 2839 |
. . 3
⊢ ((𝜑 ∧ 𝑎 ∈ (0...(deg‘𝐹))) → ((((coeff‘𝐹)‘𝑎) · ((𝑋 / 𝑌)↑𝑎)) · (𝑌↑(deg‘𝐹))) ∈ ℤ) |
63 | 13, 62 | fsumzcl 15447 |
. 2
⊢ (𝜑 → Σ𝑎 ∈ (0...(deg‘𝐹))((((coeff‘𝐹)‘𝑎) · ((𝑋 / 𝑌)↑𝑎)) · (𝑌↑(deg‘𝐹))) ∈ ℤ) |
64 | 28, 63 | eqeltrd 2839 |
1
⊢ (𝜑 → ((𝐹‘(𝑋 / 𝑌)) · (𝑌↑(deg‘𝐹))) ∈ ℤ) |