Proof of Theorem bpos1lem
| Step | Hyp | Ref
| Expression |
| 1 | | bpos1.3 |
. . . . . 6
⊢ 𝑃 ∈ ℙ |
| 2 | | prmnn 12904 |
. . . . . 6
⊢ (𝑃 ∈ ℙ → 𝑃 ∈
ℕ) |
| 3 | 1, 2 | ax-mp 5 |
. . . . 5
⊢ 𝑃 ∈ ℕ |
| 4 | 3 | nnzi 9669 |
. . . 4
⊢ 𝑃 ∈ ℤ |
| 5 | | eluzelz 9940 |
. . . 4
⊢ (𝑁 ∈
(ℤ≥‘𝐴) → 𝑁 ∈ ℤ) |
| 6 | | eluz 9944 |
. . . 4
⊢ ((𝑃 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝑁 ∈
(ℤ≥‘𝑃) ↔ 𝑃 ≤ 𝑁)) |
| 7 | 4, 5, 6 | sylancr 418 |
. . 3
⊢ (𝑁 ∈
(ℤ≥‘𝐴) → (𝑁 ∈ (ℤ≥‘𝑃) ↔ 𝑃 ≤ 𝑁)) |
| 8 | | bpos1.2 |
. . 3
⊢ (𝑁 ∈
(ℤ≥‘𝑃) → 𝜑) |
| 9 | 7, 8 | biimtrrdi 164 |
. 2
⊢ (𝑁 ∈
(ℤ≥‘𝐴) → (𝑃 ≤ 𝑁 → 𝜑)) |
| 10 | 3 | nnrei 9315 |
. . . . . . . 8
⊢ 𝑃 ∈ ℝ |
| 11 | 10 | a1i 9 |
. . . . . . 7
⊢ (𝑁 ∈
(ℤ≥‘𝐴) → 𝑃 ∈ ℝ) |
| 12 | | bpos1.5 |
. . . . . . . . 9
⊢ (𝐴 · 2) = 𝐵 |
| 13 | | bpos1.4 |
. . . . . . . . . . 11
⊢ 𝐴 ∈
ℕ0 |
| 14 | 13 | nn0rei 9578 |
. . . . . . . . . 10
⊢ 𝐴 ∈ ℝ |
| 15 | | 2re 9376 |
. . . . . . . . . 10
⊢ 2 ∈
ℝ |
| 16 | 14, 15 | remulcli 8340 |
. . . . . . . . 9
⊢ (𝐴 · 2) ∈
ℝ |
| 17 | 12, 16 | eqeltrri 2312 |
. . . . . . . 8
⊢ 𝐵 ∈ ℝ |
| 18 | 17 | a1i 9 |
. . . . . . 7
⊢ (𝑁 ∈
(ℤ≥‘𝐴) → 𝐵 ∈ ℝ) |
| 19 | | eluzelre 9941 |
. . . . . . . 8
⊢ (𝑁 ∈
(ℤ≥‘𝐴) → 𝑁 ∈ ℝ) |
| 20 | | remulcl 8307 |
. . . . . . . 8
⊢ ((2
∈ ℝ ∧ 𝑁
∈ ℝ) → (2 · 𝑁) ∈ ℝ) |
| 21 | 15, 19, 20 | sylancr 418 |
. . . . . . 7
⊢ (𝑁 ∈
(ℤ≥‘𝐴) → (2 · 𝑁) ∈ ℝ) |
| 22 | | bpos1.7 |
. . . . . . . . 9
⊢ (𝑃 < 𝐵 ∨ 𝑃 = 𝐵) |
| 23 | | 2nn0 9584 |
. . . . . . . . . . . . 13
⊢ 2 ∈
ℕ0 |
| 24 | 13, 23 | nn0mulcli 9605 |
. . . . . . . . . . . 12
⊢ (𝐴 · 2) ∈
ℕ0 |
| 25 | 12, 24 | eqeltrri 2312 |
. . . . . . . . . . 11
⊢ 𝐵 ∈
ℕ0 |
| 26 | 25 | nn0zi 9670 |
. . . . . . . . . 10
⊢ 𝐵 ∈ ℤ |
| 27 | | zleloe 9695 |
. . . . . . . . . 10
⊢ ((𝑃 ∈ ℤ ∧ 𝐵 ∈ ℤ) → (𝑃 ≤ 𝐵 ↔ (𝑃 < 𝐵 ∨ 𝑃 = 𝐵))) |
| 28 | 4, 26, 27 | mp2an 430 |
. . . . . . . . 9
⊢ (𝑃 ≤ 𝐵 ↔ (𝑃 < 𝐵 ∨ 𝑃 = 𝐵)) |
| 29 | 22, 28 | mpbir 146 |
. . . . . . . 8
⊢ 𝑃 ≤ 𝐵 |
| 30 | 29 | a1i 9 |
. . . . . . 7
⊢ (𝑁 ∈
(ℤ≥‘𝐴) → 𝑃 ≤ 𝐵) |
| 31 | 13 | nn0cni 9579 |
. . . . . . . . 9
⊢ 𝐴 ∈ ℂ |
| 32 | | 2cn 9377 |
. . . . . . . . 9
⊢ 2 ∈
ℂ |
| 33 | 31, 32, 12 | mulcomli 8333 |
. . . . . . . 8
⊢ (2
· 𝐴) = 𝐵 |
| 34 | | eluzle 9943 |
. . . . . . . . 9
⊢ (𝑁 ∈
(ℤ≥‘𝐴) → 𝐴 ≤ 𝑁) |
| 35 | | 2pos 9397 |
. . . . . . . . . . . 12
⊢ 0 <
2 |
| 36 | 15, 35 | pm3.2i 272 |
. . . . . . . . . . 11
⊢ (2 ∈
ℝ ∧ 0 < 2) |
| 37 | | lemul2 9189 |
. . . . . . . . . . 11
⊢ ((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ ∧ (2 ∈
ℝ ∧ 0 < 2)) → (𝐴 ≤ 𝑁 ↔ (2 · 𝐴) ≤ (2 · 𝑁))) |
| 38 | 14, 36, 37 | mp3an13 1369 |
. . . . . . . . . 10
⊢ (𝑁 ∈ ℝ → (𝐴 ≤ 𝑁 ↔ (2 · 𝐴) ≤ (2 · 𝑁))) |
| 39 | 19, 38 | syl 14 |
. . . . . . . . 9
⊢ (𝑁 ∈
(ℤ≥‘𝐴) → (𝐴 ≤ 𝑁 ↔ (2 · 𝐴) ≤ (2 · 𝑁))) |
| 40 | 34, 39 | mpbid 147 |
. . . . . . . 8
⊢ (𝑁 ∈
(ℤ≥‘𝐴) → (2 · 𝐴) ≤ (2 · 𝑁)) |
| 41 | 33, 40 | eqbrtrrid 4166 |
. . . . . . 7
⊢ (𝑁 ∈
(ℤ≥‘𝐴) → 𝐵 ≤ (2 · 𝑁)) |
| 42 | 11, 18, 21, 30, 41 | letrd 8451 |
. . . . . 6
⊢ (𝑁 ∈
(ℤ≥‘𝐴) → 𝑃 ≤ (2 · 𝑁)) |
| 43 | 42 | anim2i 342 |
. . . . 5
⊢ ((𝑁 < 𝑃 ∧ 𝑁 ∈ (ℤ≥‘𝐴)) → (𝑁 < 𝑃 ∧ 𝑃 ≤ (2 · 𝑁))) |
| 44 | | breq2 4134 |
. . . . . . 7
⊢ (𝑝 = 𝑃 → (𝑁 < 𝑝 ↔ 𝑁 < 𝑃)) |
| 45 | | breq1 4133 |
. . . . . . 7
⊢ (𝑝 = 𝑃 → (𝑝 ≤ (2 · 𝑁) ↔ 𝑃 ≤ (2 · 𝑁))) |
| 46 | 44, 45 | anbi12d 477 |
. . . . . 6
⊢ (𝑝 = 𝑃 → ((𝑁 < 𝑝 ∧ 𝑝 ≤ (2 · 𝑁)) ↔ (𝑁 < 𝑃 ∧ 𝑃 ≤ (2 · 𝑁)))) |
| 47 | 46 | rspcev 2929 |
. . . . 5
⊢ ((𝑃 ∈ ℙ ∧ (𝑁 < 𝑃 ∧ 𝑃 ≤ (2 · 𝑁))) → ∃𝑝 ∈ ℙ (𝑁 < 𝑝 ∧ 𝑝 ≤ (2 · 𝑁))) |
| 48 | 1, 43, 47 | sylancr 418 |
. . . 4
⊢ ((𝑁 < 𝑃 ∧ 𝑁 ∈ (ℤ≥‘𝐴)) → ∃𝑝 ∈ ℙ (𝑁 < 𝑝 ∧ 𝑝 ≤ (2 · 𝑁))) |
| 49 | | bpos1.1 |
. . . 4
⊢
(∃𝑝 ∈
ℙ (𝑁 < 𝑝 ∧ 𝑝 ≤ (2 · 𝑁)) → 𝜑) |
| 50 | 48, 49 | syl 14 |
. . 3
⊢ ((𝑁 < 𝑃 ∧ 𝑁 ∈ (ℤ≥‘𝐴)) → 𝜑) |
| 51 | 50 | expcom 116 |
. 2
⊢ (𝑁 ∈
(ℤ≥‘𝐴) → (𝑁 < 𝑃 → 𝜑)) |
| 52 | | zlelttric 9693 |
. . 3
⊢ ((𝑃 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝑃 ≤ 𝑁 ∨ 𝑁 < 𝑃)) |
| 53 | 4, 5, 52 | sylancr 418 |
. 2
⊢ (𝑁 ∈
(ℤ≥‘𝐴) → (𝑃 ≤ 𝑁 ∨ 𝑁 < 𝑃)) |
| 54 | 9, 51, 53 | mpjaod 730 |
1
⊢ (𝑁 ∈
(ℤ≥‘𝐴) → 𝜑) |