| Step | Hyp | Ref
| Expression |
| 1 | | ppiqcl 16163 |
. . . . 5
⊢ (𝐴 ∈ ℚ →
(π‘𝐴)
∈ ℕ0) |
| 2 | 1 | ad2antrr 492 |
. . . 4
⊢ (((𝐴 ∈ ℚ ∧ 0 <
𝐴) ∧
(⌊‘𝐴) ∈
ℕ) → (π‘𝐴) ∈
ℕ0) |
| 3 | 2 | nn0red 9625 |
. . 3
⊢ (((𝐴 ∈ ℚ ∧ 0 <
𝐴) ∧
(⌊‘𝐴) ∈
ℕ) → (π‘𝐴) ∈ ℝ) |
| 4 | | simpr 110 |
. . . 4
⊢ (((𝐴 ∈ ℚ ∧ 0 <
𝐴) ∧
(⌊‘𝐴) ∈
ℕ) → (⌊‘𝐴) ∈ ℕ) |
| 5 | 4 | nnred 9319 |
. . 3
⊢ (((𝐴 ∈ ℚ ∧ 0 <
𝐴) ∧
(⌊‘𝐴) ∈
ℕ) → (⌊‘𝐴) ∈ ℝ) |
| 6 | | qre 10034 |
. . . 4
⊢ (𝐴 ∈ ℚ → 𝐴 ∈
ℝ) |
| 7 | 6 | ad2antrr 492 |
. . 3
⊢ (((𝐴 ∈ ℚ ∧ 0 <
𝐴) ∧
(⌊‘𝐴) ∈
ℕ) → 𝐴 ∈
ℝ) |
| 8 | | ppiqfl 16172 |
. . . . 5
⊢ (𝐴 ∈ ℚ →
(π‘(⌊‘𝐴)) = (π‘𝐴)) |
| 9 | 8 | ad2antrr 492 |
. . . 4
⊢ (((𝐴 ∈ ℚ ∧ 0 <
𝐴) ∧
(⌊‘𝐴) ∈
ℕ) → (π‘(⌊‘𝐴)) = (π‘𝐴)) |
| 10 | | fveq2 5695 |
. . . . . . 7
⊢ (𝑤 = 1 →
(π‘𝑤) =
(π‘1)) |
| 11 | | id 19 |
. . . . . . 7
⊢ (𝑤 = 1 → 𝑤 = 1) |
| 12 | 10, 11 | breq12d 4143 |
. . . . . 6
⊢ (𝑤 = 1 →
((π‘𝑤) <
𝑤 ↔
(π‘1) < 1)) |
| 13 | | fveq2 5695 |
. . . . . . 7
⊢ (𝑤 = 𝑘 → (π‘𝑤) = (π‘𝑘)) |
| 14 | | id 19 |
. . . . . . 7
⊢ (𝑤 = 𝑘 → 𝑤 = 𝑘) |
| 15 | 13, 14 | breq12d 4143 |
. . . . . 6
⊢ (𝑤 = 𝑘 → ((π‘𝑤) < 𝑤 ↔ (π‘𝑘) < 𝑘)) |
| 16 | | fveq2 5695 |
. . . . . . 7
⊢ (𝑤 = (𝑘 + 1) → (π‘𝑤) = (π‘(𝑘 + 1))) |
| 17 | | id 19 |
. . . . . . 7
⊢ (𝑤 = (𝑘 + 1) → 𝑤 = (𝑘 + 1)) |
| 18 | 16, 17 | breq12d 4143 |
. . . . . 6
⊢ (𝑤 = (𝑘 + 1) → ((π‘𝑤) < 𝑤 ↔ (π‘(𝑘 + 1)) < (𝑘 + 1))) |
| 19 | | fveq2 5695 |
. . . . . . 7
⊢ (𝑤 = (⌊‘𝐴) →
(π‘𝑤) =
(π‘(⌊‘𝐴))) |
| 20 | | id 19 |
. . . . . . 7
⊢ (𝑤 = (⌊‘𝐴) → 𝑤 = (⌊‘𝐴)) |
| 21 | 19, 20 | breq12d 4143 |
. . . . . 6
⊢ (𝑤 = (⌊‘𝐴) →
((π‘𝑤) <
𝑤 ↔
(π‘(⌊‘𝐴)) < (⌊‘𝐴))) |
| 22 | | ppi1 16176 |
. . . . . . 7
⊢
(π‘1) = 0 |
| 23 | | 0lt1 8454 |
. . . . . . 7
⊢ 0 <
1 |
| 24 | 22, 23 | eqbrtri 4151 |
. . . . . 6
⊢
(π‘1) < 1 |
| 25 | | nnq 10042 |
. . . . . . . . . . . 12
⊢ (𝑘 ∈ ℕ → 𝑘 ∈
ℚ) |
| 26 | | 1z 9674 |
. . . . . . . . . . . . 13
⊢ 1 ∈
ℤ |
| 27 | | zq 10035 |
. . . . . . . . . . . . 13
⊢ (1 ∈
ℤ → 1 ∈ ℚ) |
| 28 | 26, 27 | ax-mp 5 |
. . . . . . . . . . . 12
⊢ 1 ∈
ℚ |
| 29 | | qaddcl 10044 |
. . . . . . . . . . . 12
⊢ ((𝑘 ∈ ℚ ∧ 1 ∈
ℚ) → (𝑘 + 1)
∈ ℚ) |
| 30 | 25, 28, 29 | sylancl 417 |
. . . . . . . . . . 11
⊢ (𝑘 ∈ ℕ → (𝑘 + 1) ∈
ℚ) |
| 31 | | ppiqcl 16163 |
. . . . . . . . . . 11
⊢ ((𝑘 + 1) ∈ ℚ →
(π‘(𝑘 + 1))
∈ ℕ0) |
| 32 | 30, 31 | syl 14 |
. . . . . . . . . 10
⊢ (𝑘 ∈ ℕ →
(π‘(𝑘 + 1))
∈ ℕ0) |
| 33 | 32 | adantr 276 |
. . . . . . . . 9
⊢ ((𝑘 ∈ ℕ ∧
(π‘𝑘) <
𝑘) →
(π‘(𝑘 + 1))
∈ ℕ0) |
| 34 | 33 | nn0red 9625 |
. . . . . . . 8
⊢ ((𝑘 ∈ ℕ ∧
(π‘𝑘) <
𝑘) →
(π‘(𝑘 + 1))
∈ ℝ) |
| 35 | | ppiqcl 16163 |
. . . . . . . . . . . 12
⊢ (𝑘 ∈ ℚ →
(π‘𝑘)
∈ ℕ0) |
| 36 | 25, 35 | syl 14 |
. . . . . . . . . . 11
⊢ (𝑘 ∈ ℕ →
(π‘𝑘)
∈ ℕ0) |
| 37 | 36 | adantr 276 |
. . . . . . . . . 10
⊢ ((𝑘 ∈ ℕ ∧
(π‘𝑘) <
𝑘) →
(π‘𝑘)
∈ ℕ0) |
| 38 | 37 | nn0red 9625 |
. . . . . . . . 9
⊢ ((𝑘 ∈ ℕ ∧
(π‘𝑘) <
𝑘) →
(π‘𝑘)
∈ ℝ) |
| 39 | | peano2re 8463 |
. . . . . . . . 9
⊢
((π‘𝑘) ∈ ℝ →
((π‘𝑘) + 1)
∈ ℝ) |
| 40 | 38, 39 | syl 14 |
. . . . . . . 8
⊢ ((𝑘 ∈ ℕ ∧
(π‘𝑘) <
𝑘) →
((π‘𝑘) + 1)
∈ ℝ) |
| 41 | | nnre 9313 |
. . . . . . . . . 10
⊢ (𝑘 ∈ ℕ → 𝑘 ∈
ℝ) |
| 42 | 41 | adantr 276 |
. . . . . . . . 9
⊢ ((𝑘 ∈ ℕ ∧
(π‘𝑘) <
𝑘) → 𝑘 ∈
ℝ) |
| 43 | | peano2re 8463 |
. . . . . . . . 9
⊢ (𝑘 ∈ ℝ → (𝑘 + 1) ∈
ℝ) |
| 44 | 42, 43 | syl 14 |
. . . . . . . 8
⊢ ((𝑘 ∈ ℕ ∧
(π‘𝑘) <
𝑘) → (𝑘 + 1) ∈
ℝ) |
| 45 | | ppiqp1le 16173 |
. . . . . . . . . 10
⊢ (𝑘 ∈ ℚ →
(π‘(𝑘 + 1))
≤ ((π‘𝑘)
+ 1)) |
| 46 | 25, 45 | syl 14 |
. . . . . . . . 9
⊢ (𝑘 ∈ ℕ →
(π‘(𝑘 + 1))
≤ ((π‘𝑘)
+ 1)) |
| 47 | 46 | adantr 276 |
. . . . . . . 8
⊢ ((𝑘 ∈ ℕ ∧
(π‘𝑘) <
𝑘) →
(π‘(𝑘 + 1))
≤ ((π‘𝑘)
+ 1)) |
| 48 | | 1red 8341 |
. . . . . . . . 9
⊢ ((𝑘 ∈ ℕ ∧
(π‘𝑘) <
𝑘) → 1 ∈
ℝ) |
| 49 | | simpr 110 |
. . . . . . . . 9
⊢ ((𝑘 ∈ ℕ ∧
(π‘𝑘) <
𝑘) →
(π‘𝑘) <
𝑘) |
| 50 | 38, 42, 48, 49 | ltadd1dd 8885 |
. . . . . . . 8
⊢ ((𝑘 ∈ ℕ ∧
(π‘𝑘) <
𝑘) →
((π‘𝑘) + 1)
< (𝑘 +
1)) |
| 51 | 34, 40, 44, 47, 50 | lelttrd 8452 |
. . . . . . 7
⊢ ((𝑘 ∈ ℕ ∧
(π‘𝑘) <
𝑘) →
(π‘(𝑘 + 1))
< (𝑘 +
1)) |
| 52 | 51 | ex 115 |
. . . . . 6
⊢ (𝑘 ∈ ℕ →
((π‘𝑘) <
𝑘 →
(π‘(𝑘 + 1))
< (𝑘 +
1))) |
| 53 | 12, 15, 18, 21, 24, 52 | nnind 9322 |
. . . . 5
⊢
((⌊‘𝐴)
∈ ℕ → (π‘(⌊‘𝐴)) < (⌊‘𝐴)) |
| 54 | 4, 53 | syl 14 |
. . . 4
⊢ (((𝐴 ∈ ℚ ∧ 0 <
𝐴) ∧
(⌊‘𝐴) ∈
ℕ) → (π‘(⌊‘𝐴)) < (⌊‘𝐴)) |
| 55 | 9, 54 | eqbrtrrd 4154 |
. . 3
⊢ (((𝐴 ∈ ℚ ∧ 0 <
𝐴) ∧
(⌊‘𝐴) ∈
ℕ) → (π‘𝐴) < (⌊‘𝐴)) |
| 56 | | flqle 10725 |
. . . 4
⊢ (𝐴 ∈ ℚ →
(⌊‘𝐴) ≤
𝐴) |
| 57 | 56 | ad2antrr 492 |
. . 3
⊢ (((𝐴 ∈ ℚ ∧ 0 <
𝐴) ∧
(⌊‘𝐴) ∈
ℕ) → (⌊‘𝐴) ≤ 𝐴) |
| 58 | 3, 5, 7, 55, 57 | ltletrd 8752 |
. 2
⊢ (((𝐴 ∈ ℚ ∧ 0 <
𝐴) ∧
(⌊‘𝐴) ∈
ℕ) → (π‘𝐴) < 𝐴) |
| 59 | 8 | ad2antrr 492 |
. . . 4
⊢ (((𝐴 ∈ ℚ ∧ 0 <
𝐴) ∧
(⌊‘𝐴) = 0)
→ (π‘(⌊‘𝐴)) = (π‘𝐴)) |
| 60 | | simpr 110 |
. . . . . 6
⊢ (((𝐴 ∈ ℚ ∧ 0 <
𝐴) ∧
(⌊‘𝐴) = 0)
→ (⌊‘𝐴) =
0) |
| 61 | 60 | fveq2d 5699 |
. . . . 5
⊢ (((𝐴 ∈ ℚ ∧ 0 <
𝐴) ∧
(⌊‘𝐴) = 0)
→ (π‘(⌊‘𝐴)) = (π‘0)) |
| 62 | | 2pos 9397 |
. . . . . 6
⊢ 0 <
2 |
| 63 | | 0z 9659 |
. . . . . . 7
⊢ 0 ∈
ℤ |
| 64 | | zq 10035 |
. . . . . . 7
⊢ (0 ∈
ℤ → 0 ∈ ℚ) |
| 65 | | ppiqeq0 16182 |
. . . . . . 7
⊢ (0 ∈
ℚ → ((π‘0) = 0 ↔ 0 < 2)) |
| 66 | 63, 64, 65 | mp2b 8 |
. . . . . 6
⊢
((π‘0) = 0 ↔ 0 < 2) |
| 67 | 62, 66 | mpbir 146 |
. . . . 5
⊢
(π‘0) = 0 |
| 68 | 61, 67 | eqtrdi 2287 |
. . . 4
⊢ (((𝐴 ∈ ℚ ∧ 0 <
𝐴) ∧
(⌊‘𝐴) = 0)
→ (π‘(⌊‘𝐴)) = 0) |
| 69 | 59, 68 | eqtr3d 2273 |
. . 3
⊢ (((𝐴 ∈ ℚ ∧ 0 <
𝐴) ∧
(⌊‘𝐴) = 0)
→ (π‘𝐴) = 0) |
| 70 | | simplr 533 |
. . 3
⊢ (((𝐴 ∈ ℚ ∧ 0 <
𝐴) ∧
(⌊‘𝐴) = 0)
→ 0 < 𝐴) |
| 71 | 69, 70 | eqbrtrd 4152 |
. 2
⊢ (((𝐴 ∈ ℚ ∧ 0 <
𝐴) ∧
(⌊‘𝐴) = 0)
→ (π‘𝐴) < 𝐴) |
| 72 | | 0red 8327 |
. . . . 5
⊢ ((𝐴 ∈ ℚ ∧ 0 <
𝐴) → 0 ∈
ℝ) |
| 73 | 6 | adantr 276 |
. . . . 5
⊢ ((𝐴 ∈ ℚ ∧ 0 <
𝐴) → 𝐴 ∈ ℝ) |
| 74 | | simpr 110 |
. . . . 5
⊢ ((𝐴 ∈ ℚ ∧ 0 <
𝐴) → 0 < 𝐴) |
| 75 | 72, 73, 74 | ltled 8446 |
. . . 4
⊢ ((𝐴 ∈ ℚ ∧ 0 <
𝐴) → 0 ≤ 𝐴) |
| 76 | | flqge0nn0 10741 |
. . . 4
⊢ ((𝐴 ∈ ℚ ∧ 0 ≤
𝐴) →
(⌊‘𝐴) ∈
ℕ0) |
| 77 | 75, 76 | syldan 282 |
. . 3
⊢ ((𝐴 ∈ ℚ ∧ 0 <
𝐴) →
(⌊‘𝐴) ∈
ℕ0) |
| 78 | | elnn0 9569 |
. . 3
⊢
((⌊‘𝐴)
∈ ℕ0 ↔ ((⌊‘𝐴) ∈ ℕ ∨ (⌊‘𝐴) = 0)) |
| 79 | 77, 78 | sylib 122 |
. 2
⊢ ((𝐴 ∈ ℚ ∧ 0 <
𝐴) →
((⌊‘𝐴) ∈
ℕ ∨ (⌊‘𝐴) = 0)) |
| 80 | 58, 71, 79 | mpjaodan 810 |
1
⊢ ((𝐴 ∈ ℚ ∧ 0 <
𝐴) →
(π‘𝐴) <
𝐴) |