Step | Hyp | Ref
| Expression |
1 | | pntibnd.r |
. . 3
⊢ 𝑅 = (𝑎 ∈ ℝ+ ↦
((ψ‘𝑎) −
𝑎)) |
2 | 1 | pntrsumbnd2 26715 |
. 2
⊢
∃𝑑 ∈
ℝ+ ∀𝑖 ∈ ℕ ∀𝑗 ∈ ℤ (abs‘Σ𝑛 ∈ (𝑖...𝑗)((𝑅‘𝑛) / (𝑛 · (𝑛 + 1)))) ≤ 𝑑 |
3 | | simpl 483 |
. . . . 5
⊢ ((𝑑 ∈ ℝ+
∧ ∀𝑖 ∈
ℕ ∀𝑗 ∈
ℤ (abs‘Σ𝑛
∈ (𝑖...𝑗)((𝑅‘𝑛) / (𝑛 · (𝑛 + 1)))) ≤ 𝑑) → 𝑑 ∈ ℝ+) |
4 | | 2rp 12735 |
. . . . 5
⊢ 2 ∈
ℝ+ |
5 | | rpaddcl 12752 |
. . . . 5
⊢ ((𝑑 ∈ ℝ+
∧ 2 ∈ ℝ+) → (𝑑 + 2) ∈
ℝ+) |
6 | 3, 4, 5 | sylancl 586 |
. . . 4
⊢ ((𝑑 ∈ ℝ+
∧ ∀𝑖 ∈
ℕ ∀𝑗 ∈
ℤ (abs‘Σ𝑛
∈ (𝑖...𝑗)((𝑅‘𝑛) / (𝑛 · (𝑛 + 1)))) ≤ 𝑑) → (𝑑 + 2) ∈
ℝ+) |
7 | | 2re 12047 |
. . . . . . . 8
⊢ 2 ∈
ℝ |
8 | | elioore 13109 |
. . . . . . . . . 10
⊢ (𝑒 ∈ (0(,)1) → 𝑒 ∈
ℝ) |
9 | 8 | adantl 482 |
. . . . . . . . 9
⊢ (((𝑑 ∈ ℝ+
∧ ∀𝑖 ∈
ℕ ∀𝑗 ∈
ℤ (abs‘Σ𝑛
∈ (𝑖...𝑗)((𝑅‘𝑛) / (𝑛 · (𝑛 + 1)))) ≤ 𝑑) ∧ 𝑒 ∈ (0(,)1)) → 𝑒 ∈ ℝ) |
10 | | eliooord 13138 |
. . . . . . . . . . 11
⊢ (𝑒 ∈ (0(,)1) → (0 <
𝑒 ∧ 𝑒 < 1)) |
11 | 10 | adantl 482 |
. . . . . . . . . 10
⊢ (((𝑑 ∈ ℝ+
∧ ∀𝑖 ∈
ℕ ∀𝑗 ∈
ℤ (abs‘Σ𝑛
∈ (𝑖...𝑗)((𝑅‘𝑛) / (𝑛 · (𝑛 + 1)))) ≤ 𝑑) ∧ 𝑒 ∈ (0(,)1)) → (0 < 𝑒 ∧ 𝑒 < 1)) |
12 | 11 | simpld 495 |
. . . . . . . . 9
⊢ (((𝑑 ∈ ℝ+
∧ ∀𝑖 ∈
ℕ ∀𝑗 ∈
ℤ (abs‘Σ𝑛
∈ (𝑖...𝑗)((𝑅‘𝑛) / (𝑛 · (𝑛 + 1)))) ≤ 𝑑) ∧ 𝑒 ∈ (0(,)1)) → 0 < 𝑒) |
13 | 9, 12 | elrpd 12769 |
. . . . . . . 8
⊢ (((𝑑 ∈ ℝ+
∧ ∀𝑖 ∈
ℕ ∀𝑗 ∈
ℤ (abs‘Σ𝑛
∈ (𝑖...𝑗)((𝑅‘𝑛) / (𝑛 · (𝑛 + 1)))) ≤ 𝑑) ∧ 𝑒 ∈ (0(,)1)) → 𝑒 ∈ ℝ+) |
14 | | rerpdivcl 12760 |
. . . . . . . 8
⊢ ((2
∈ ℝ ∧ 𝑒
∈ ℝ+) → (2 / 𝑒) ∈ ℝ) |
15 | 7, 13, 14 | sylancr 587 |
. . . . . . 7
⊢ (((𝑑 ∈ ℝ+
∧ ∀𝑖 ∈
ℕ ∀𝑗 ∈
ℤ (abs‘Σ𝑛
∈ (𝑖...𝑗)((𝑅‘𝑛) / (𝑛 · (𝑛 + 1)))) ≤ 𝑑) ∧ 𝑒 ∈ (0(,)1)) → (2 / 𝑒) ∈
ℝ) |
16 | 15 | rpefcld 15814 |
. . . . . 6
⊢ (((𝑑 ∈ ℝ+
∧ ∀𝑖 ∈
ℕ ∀𝑗 ∈
ℤ (abs‘Σ𝑛
∈ (𝑖...𝑗)((𝑅‘𝑛) / (𝑛 · (𝑛 + 1)))) ≤ 𝑑) ∧ 𝑒 ∈ (0(,)1)) → (exp‘(2 / 𝑒)) ∈
ℝ+) |
17 | | simpllr 773 |
. . . . . . . . 9
⊢
(((((𝑑 ∈
ℝ+ ∧ ∀𝑖 ∈ ℕ ∀𝑗 ∈ ℤ (abs‘Σ𝑛 ∈ (𝑖...𝑗)((𝑅‘𝑛) / (𝑛 · (𝑛 + 1)))) ≤ 𝑑) ∧ 𝑒 ∈ (0(,)1)) ∧ (𝑘 ∈ ((exp‘((𝑑 + 2) / 𝑒))[,)+∞) ∧ 𝑦 ∈ ((exp‘(2 / 𝑒))(,)+∞))) ∧ ¬ ∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒)) → 𝑒 ∈ (0(,)1)) |
18 | | eqid 2738 |
. . . . . . . . 9
⊢
(exp‘(2 / 𝑒))
= (exp‘(2 / 𝑒)) |
19 | | simplrr 775 |
. . . . . . . . 9
⊢
(((((𝑑 ∈
ℝ+ ∧ ∀𝑖 ∈ ℕ ∀𝑗 ∈ ℤ (abs‘Σ𝑛 ∈ (𝑖...𝑗)((𝑅‘𝑛) / (𝑛 · (𝑛 + 1)))) ≤ 𝑑) ∧ 𝑒 ∈ (0(,)1)) ∧ (𝑘 ∈ ((exp‘((𝑑 + 2) / 𝑒))[,)+∞) ∧ 𝑦 ∈ ((exp‘(2 / 𝑒))(,)+∞))) ∧ ¬ ∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒)) → 𝑦 ∈ ((exp‘(2 / 𝑒))(,)+∞)) |
20 | | simp-4l 780 |
. . . . . . . . 9
⊢
(((((𝑑 ∈
ℝ+ ∧ ∀𝑖 ∈ ℕ ∀𝑗 ∈ ℤ (abs‘Σ𝑛 ∈ (𝑖...𝑗)((𝑅‘𝑛) / (𝑛 · (𝑛 + 1)))) ≤ 𝑑) ∧ 𝑒 ∈ (0(,)1)) ∧ (𝑘 ∈ ((exp‘((𝑑 + 2) / 𝑒))[,)+∞) ∧ 𝑦 ∈ ((exp‘(2 / 𝑒))(,)+∞))) ∧ ¬ ∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒)) → 𝑑 ∈ ℝ+) |
21 | | simp-4r 781 |
. . . . . . . . 9
⊢
(((((𝑑 ∈
ℝ+ ∧ ∀𝑖 ∈ ℕ ∀𝑗 ∈ ℤ (abs‘Σ𝑛 ∈ (𝑖...𝑗)((𝑅‘𝑛) / (𝑛 · (𝑛 + 1)))) ≤ 𝑑) ∧ 𝑒 ∈ (0(,)1)) ∧ (𝑘 ∈ ((exp‘((𝑑 + 2) / 𝑒))[,)+∞) ∧ 𝑦 ∈ ((exp‘(2 / 𝑒))(,)+∞))) ∧ ¬ ∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒)) → ∀𝑖 ∈ ℕ ∀𝑗 ∈ ℤ (abs‘Σ𝑛 ∈ (𝑖...𝑗)((𝑅‘𝑛) / (𝑛 · (𝑛 + 1)))) ≤ 𝑑) |
22 | | eqid 2738 |
. . . . . . . . 9
⊢ (𝑑 + 2) = (𝑑 + 2) |
23 | | simplrl 774 |
. . . . . . . . 9
⊢
(((((𝑑 ∈
ℝ+ ∧ ∀𝑖 ∈ ℕ ∀𝑗 ∈ ℤ (abs‘Σ𝑛 ∈ (𝑖...𝑗)((𝑅‘𝑛) / (𝑛 · (𝑛 + 1)))) ≤ 𝑑) ∧ 𝑒 ∈ (0(,)1)) ∧ (𝑘 ∈ ((exp‘((𝑑 + 2) / 𝑒))[,)+∞) ∧ 𝑦 ∈ ((exp‘(2 / 𝑒))(,)+∞))) ∧ ¬ ∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒)) → 𝑘 ∈ ((exp‘((𝑑 + 2) / 𝑒))[,)+∞)) |
24 | | simpr 485 |
. . . . . . . . 9
⊢
(((((𝑑 ∈
ℝ+ ∧ ∀𝑖 ∈ ℕ ∀𝑗 ∈ ℤ (abs‘Σ𝑛 ∈ (𝑖...𝑗)((𝑅‘𝑛) / (𝑛 · (𝑛 + 1)))) ≤ 𝑑) ∧ 𝑒 ∈ (0(,)1)) ∧ (𝑘 ∈ ((exp‘((𝑑 + 2) / 𝑒))[,)+∞) ∧ 𝑦 ∈ ((exp‘(2 / 𝑒))(,)+∞))) ∧ ¬ ∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒)) → ¬ ∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒)) |
25 | 1, 17, 18, 19, 20, 21, 22, 23, 24 | pntpbnd2 26735 |
. . . . . . . 8
⊢ ¬
((((𝑑 ∈
ℝ+ ∧ ∀𝑖 ∈ ℕ ∀𝑗 ∈ ℤ (abs‘Σ𝑛 ∈ (𝑖...𝑗)((𝑅‘𝑛) / (𝑛 · (𝑛 + 1)))) ≤ 𝑑) ∧ 𝑒 ∈ (0(,)1)) ∧ (𝑘 ∈ ((exp‘((𝑑 + 2) / 𝑒))[,)+∞) ∧ 𝑦 ∈ ((exp‘(2 / 𝑒))(,)+∞))) ∧ ¬ ∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒)) |
26 | | iman 402 |
. . . . . . . 8
⊢
(((((𝑑 ∈
ℝ+ ∧ ∀𝑖 ∈ ℕ ∀𝑗 ∈ ℤ (abs‘Σ𝑛 ∈ (𝑖...𝑗)((𝑅‘𝑛) / (𝑛 · (𝑛 + 1)))) ≤ 𝑑) ∧ 𝑒 ∈ (0(,)1)) ∧ (𝑘 ∈ ((exp‘((𝑑 + 2) / 𝑒))[,)+∞) ∧ 𝑦 ∈ ((exp‘(2 / 𝑒))(,)+∞))) → ∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒)) ↔ ¬ ((((𝑑 ∈ ℝ+ ∧
∀𝑖 ∈ ℕ
∀𝑗 ∈ ℤ
(abs‘Σ𝑛 ∈
(𝑖...𝑗)((𝑅‘𝑛) / (𝑛 · (𝑛 + 1)))) ≤ 𝑑) ∧ 𝑒 ∈ (0(,)1)) ∧ (𝑘 ∈ ((exp‘((𝑑 + 2) / 𝑒))[,)+∞) ∧ 𝑦 ∈ ((exp‘(2 / 𝑒))(,)+∞))) ∧ ¬ ∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒))) |
27 | 25, 26 | mpbir 230 |
. . . . . . 7
⊢ ((((𝑑 ∈ ℝ+
∧ ∀𝑖 ∈
ℕ ∀𝑗 ∈
ℤ (abs‘Σ𝑛
∈ (𝑖...𝑗)((𝑅‘𝑛) / (𝑛 · (𝑛 + 1)))) ≤ 𝑑) ∧ 𝑒 ∈ (0(,)1)) ∧ (𝑘 ∈ ((exp‘((𝑑 + 2) / 𝑒))[,)+∞) ∧ 𝑦 ∈ ((exp‘(2 / 𝑒))(,)+∞))) → ∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒)) |
28 | 27 | ralrimivva 3123 |
. . . . . 6
⊢ (((𝑑 ∈ ℝ+
∧ ∀𝑖 ∈
ℕ ∀𝑗 ∈
ℤ (abs‘Σ𝑛
∈ (𝑖...𝑗)((𝑅‘𝑛) / (𝑛 · (𝑛 + 1)))) ≤ 𝑑) ∧ 𝑒 ∈ (0(,)1)) → ∀𝑘 ∈ ((exp‘((𝑑 + 2) / 𝑒))[,)+∞)∀𝑦 ∈ ((exp‘(2 / 𝑒))(,)+∞)∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒)) |
29 | | oveq1 7282 |
. . . . . . . . 9
⊢ (𝑥 = (exp‘(2 / 𝑒)) → (𝑥(,)+∞) = ((exp‘(2 / 𝑒))(,)+∞)) |
30 | 29 | raleqdv 3348 |
. . . . . . . 8
⊢ (𝑥 = (exp‘(2 / 𝑒)) → (∀𝑦 ∈ (𝑥(,)+∞)∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒) ↔ ∀𝑦 ∈ ((exp‘(2 / 𝑒))(,)+∞)∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒))) |
31 | 30 | ralbidv 3112 |
. . . . . . 7
⊢ (𝑥 = (exp‘(2 / 𝑒)) → (∀𝑘 ∈ ((exp‘((𝑑 + 2) / 𝑒))[,)+∞)∀𝑦 ∈ (𝑥(,)+∞)∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒) ↔ ∀𝑘 ∈ ((exp‘((𝑑 + 2) / 𝑒))[,)+∞)∀𝑦 ∈ ((exp‘(2 / 𝑒))(,)+∞)∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒))) |
32 | 31 | rspcev 3561 |
. . . . . 6
⊢
(((exp‘(2 / 𝑒)) ∈ ℝ+ ∧
∀𝑘 ∈
((exp‘((𝑑 + 2) /
𝑒))[,)+∞)∀𝑦 ∈ ((exp‘(2 / 𝑒))(,)+∞)∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒)) → ∃𝑥 ∈ ℝ+ ∀𝑘 ∈ ((exp‘((𝑑 + 2) / 𝑒))[,)+∞)∀𝑦 ∈ (𝑥(,)+∞)∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒)) |
33 | 16, 28, 32 | syl2anc 584 |
. . . . 5
⊢ (((𝑑 ∈ ℝ+
∧ ∀𝑖 ∈
ℕ ∀𝑗 ∈
ℤ (abs‘Σ𝑛
∈ (𝑖...𝑗)((𝑅‘𝑛) / (𝑛 · (𝑛 + 1)))) ≤ 𝑑) ∧ 𝑒 ∈ (0(,)1)) → ∃𝑥 ∈ ℝ+
∀𝑘 ∈
((exp‘((𝑑 + 2) /
𝑒))[,)+∞)∀𝑦 ∈ (𝑥(,)+∞)∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒)) |
34 | 33 | ralrimiva 3103 |
. . . 4
⊢ ((𝑑 ∈ ℝ+
∧ ∀𝑖 ∈
ℕ ∀𝑗 ∈
ℤ (abs‘Σ𝑛
∈ (𝑖...𝑗)((𝑅‘𝑛) / (𝑛 · (𝑛 + 1)))) ≤ 𝑑) → ∀𝑒 ∈ (0(,)1)∃𝑥 ∈ ℝ+ ∀𝑘 ∈ ((exp‘((𝑑 + 2) / 𝑒))[,)+∞)∀𝑦 ∈ (𝑥(,)+∞)∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒)) |
35 | | fvoveq1 7298 |
. . . . . . . . 9
⊢ (𝑐 = (𝑑 + 2) → (exp‘(𝑐 / 𝑒)) = (exp‘((𝑑 + 2) / 𝑒))) |
36 | 35 | oveq1d 7290 |
. . . . . . . 8
⊢ (𝑐 = (𝑑 + 2) → ((exp‘(𝑐 / 𝑒))[,)+∞) = ((exp‘((𝑑 + 2) / 𝑒))[,)+∞)) |
37 | 36 | raleqdv 3348 |
. . . . . . 7
⊢ (𝑐 = (𝑑 + 2) → (∀𝑘 ∈ ((exp‘(𝑐 / 𝑒))[,)+∞)∀𝑦 ∈ (𝑥(,)+∞)∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒) ↔ ∀𝑘 ∈ ((exp‘((𝑑 + 2) / 𝑒))[,)+∞)∀𝑦 ∈ (𝑥(,)+∞)∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒))) |
38 | 37 | rexbidv 3226 |
. . . . . 6
⊢ (𝑐 = (𝑑 + 2) → (∃𝑥 ∈ ℝ+ ∀𝑘 ∈ ((exp‘(𝑐 / 𝑒))[,)+∞)∀𝑦 ∈ (𝑥(,)+∞)∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒) ↔ ∃𝑥 ∈ ℝ+ ∀𝑘 ∈ ((exp‘((𝑑 + 2) / 𝑒))[,)+∞)∀𝑦 ∈ (𝑥(,)+∞)∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒))) |
39 | 38 | ralbidv 3112 |
. . . . 5
⊢ (𝑐 = (𝑑 + 2) → (∀𝑒 ∈ (0(,)1)∃𝑥 ∈ ℝ+ ∀𝑘 ∈ ((exp‘(𝑐 / 𝑒))[,)+∞)∀𝑦 ∈ (𝑥(,)+∞)∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒) ↔ ∀𝑒 ∈ (0(,)1)∃𝑥 ∈ ℝ+ ∀𝑘 ∈ ((exp‘((𝑑 + 2) / 𝑒))[,)+∞)∀𝑦 ∈ (𝑥(,)+∞)∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒))) |
40 | 39 | rspcev 3561 |
. . . 4
⊢ (((𝑑 + 2) ∈ ℝ+
∧ ∀𝑒 ∈
(0(,)1)∃𝑥 ∈
ℝ+ ∀𝑘 ∈ ((exp‘((𝑑 + 2) / 𝑒))[,)+∞)∀𝑦 ∈ (𝑥(,)+∞)∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒)) → ∃𝑐 ∈ ℝ+ ∀𝑒 ∈ (0(,)1)∃𝑥 ∈ ℝ+
∀𝑘 ∈
((exp‘(𝑐 / 𝑒))[,)+∞)∀𝑦 ∈ (𝑥(,)+∞)∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒)) |
41 | 6, 34, 40 | syl2anc 584 |
. . 3
⊢ ((𝑑 ∈ ℝ+
∧ ∀𝑖 ∈
ℕ ∀𝑗 ∈
ℤ (abs‘Σ𝑛
∈ (𝑖...𝑗)((𝑅‘𝑛) / (𝑛 · (𝑛 + 1)))) ≤ 𝑑) → ∃𝑐 ∈ ℝ+ ∀𝑒 ∈ (0(,)1)∃𝑥 ∈ ℝ+
∀𝑘 ∈
((exp‘(𝑐 / 𝑒))[,)+∞)∀𝑦 ∈ (𝑥(,)+∞)∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒)) |
42 | 41 | rexlimiva 3210 |
. 2
⊢
(∃𝑑 ∈
ℝ+ ∀𝑖 ∈ ℕ ∀𝑗 ∈ ℤ (abs‘Σ𝑛 ∈ (𝑖...𝑗)((𝑅‘𝑛) / (𝑛 · (𝑛 + 1)))) ≤ 𝑑 → ∃𝑐 ∈ ℝ+ ∀𝑒 ∈ (0(,)1)∃𝑥 ∈ ℝ+
∀𝑘 ∈
((exp‘(𝑐 / 𝑒))[,)+∞)∀𝑦 ∈ (𝑥(,)+∞)∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒)) |
43 | 2, 42 | ax-mp 5 |
1
⊢
∃𝑐 ∈
ℝ+ ∀𝑒 ∈ (0(,)1)∃𝑥 ∈ ℝ+ ∀𝑘 ∈ ((exp‘(𝑐 / 𝑒))[,)+∞)∀𝑦 ∈ (𝑥(,)+∞)∃𝑛 ∈ ℕ ((𝑦 < 𝑛 ∧ 𝑛 ≤ (𝑘 · 𝑦)) ∧ (abs‘((𝑅‘𝑛) / 𝑛)) ≤ 𝑒) |