Proof of Theorem ang180lem3
| Step | Hyp | Ref
| Expression |
| 1 | | ang180lem1.3 |
. . . . . . . . . 10
⊢ 𝑁 = (((𝑇 / i) / (2 · π)) − (1 /
2)) |
| 2 | | ang.1 |
. . . . . . . . . . . . . . . 16
⊢ 𝐹 = (𝑥 ∈ (ℂ ∖ {0}), 𝑦 ∈ (ℂ ∖ {0})
↦ (ℑ‘(log‘(𝑦 / 𝑥)))) |
| 3 | | ang180lem1.2 |
. . . . . . . . . . . . . . . 16
⊢ 𝑇 = (((log‘(1 / (1 −
𝐴))) + (log‘((𝐴 − 1) / 𝐴))) + (log‘𝐴)) |
| 4 | 2, 3, 1 | ang180lem2 27165 |
. . . . . . . . . . . . . . 15
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → ( -2 < 𝑁 ∧ 𝑁 < 1)) |
| 5 | 4 | simprd 501 |
. . . . . . . . . . . . . 14
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → 𝑁 < 1) |
| 6 | | 1e0p1 12885 |
. . . . . . . . . . . . . 14
⊢ 1 = (0 +
1) |
| 7 | 5, 6 | breqtrdi 5149 |
. . . . . . . . . . . . 13
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → 𝑁 < (0 + 1)) |
| 8 | 2, 3, 1 | ang180lem1 27164 |
. . . . . . . . . . . . . . 15
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → (𝑁 ∈ ℤ ∧ (𝑇 / i) ∈ ℝ)) |
| 9 | 8 | simpld 500 |
. . . . . . . . . . . . . 14
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → 𝑁 ∈ ℤ) |
| 10 | | 0z 12728 |
. . . . . . . . . . . . . 14
⊢ 0 ∈
ℤ |
| 11 | | zleltp1 12771 |
. . . . . . . . . . . . . 14
⊢ ((𝑁 ∈ ℤ ∧ 0 ∈
ℤ) → (𝑁 ≤ 0
↔ 𝑁 < (0 +
1))) |
| 12 | 9, 10, 11 | sylancl 598 |
. . . . . . . . . . . . 13
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → (𝑁 ≤ 0 ↔ 𝑁 < (0 + 1))) |
| 13 | 7, 12 | mpbird 260 |
. . . . . . . . . . . 12
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → 𝑁 ≤ 0) |
| 14 | 13 | adantr 486 |
. . . . . . . . . . 11
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 < 𝑁) → 𝑁 ≤ 0) |
| 15 | | zlem1lt 12772 |
. . . . . . . . . . . . . 14
⊢ ((0
∈ ℤ ∧ 𝑁
∈ ℤ) → (0 ≤ 𝑁 ↔ (0 − 1) < 𝑁)) |
| 16 | 10, 9, 15 | sylancr 599 |
. . . . . . . . . . . . 13
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → (0 ≤ 𝑁 ↔ (0 − 1) < 𝑁)) |
| 17 | | df-neg 11568 |
. . . . . . . . . . . . . 14
⊢ -1 = (0
− 1) |
| 18 | 17 | breq1i 5113 |
. . . . . . . . . . . . 13
⊢ ( -1 <
𝑁 ↔ (0 − 1) <
𝑁) |
| 19 | 16, 18 | bitr4di 292 |
. . . . . . . . . . . 12
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → (0 ≤ 𝑁 ↔ -1 < 𝑁)) |
| 20 | 19 | biimpar 483 |
. . . . . . . . . . 11
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 < 𝑁) → 0 ≤ 𝑁) |
| 21 | 9 | zred 12827 |
. . . . . . . . . . . . 13
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → 𝑁 ∈ ℝ) |
| 22 | 21 | adantr 486 |
. . . . . . . . . . . 12
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 < 𝑁) → 𝑁 ∈ ℝ) |
| 23 | | 0re 11334 |
. . . . . . . . . . . 12
⊢ 0 ∈
ℝ |
| 24 | | letri3 11419 |
. . . . . . . . . . . 12
⊢ ((𝑁 ∈ ℝ ∧ 0 ∈
ℝ) → (𝑁 = 0
↔ (𝑁 ≤ 0 ∧ 0
≤ 𝑁))) |
| 25 | 22, 23, 24 | sylancl 598 |
. . . . . . . . . . 11
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 < 𝑁) → (𝑁 = 0 ↔ (𝑁 ≤ 0 ∧ 0 ≤ 𝑁))) |
| 26 | 14, 20, 25 | mpbir2and 726 |
. . . . . . . . . 10
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 < 𝑁) → 𝑁 = 0) |
| 27 | 1, 26 | eqtr3id 2812 |
. . . . . . . . 9
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 < 𝑁) → (((𝑇 / i) / (2 · π)) − (1 / 2))
= 0) |
| 28 | | ax-1cn 11282 |
. . . . . . . . . . . . . . . . . . 19
⊢ 1 ∈
ℂ |
| 29 | | simp1 1154 |
. . . . . . . . . . . . . . . . . . 19
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → 𝐴 ∈ ℂ) |
| 30 | | subcl 11580 |
. . . . . . . . . . . . . . . . . . 19
⊢ ((1
∈ ℂ ∧ 𝐴
∈ ℂ) → (1 − 𝐴) ∈ ℂ) |
| 31 | 28, 29, 30 | sylancr 599 |
. . . . . . . . . . . . . . . . . 18
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → (1 − 𝐴) ∈ ℂ) |
| 32 | | simp3 1156 |
. . . . . . . . . . . . . . . . . . . 20
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → 𝐴 ≠ 1) |
| 33 | 32 | necomd 3014 |
. . . . . . . . . . . . . . . . . . 19
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → 1 ≠ 𝐴) |
| 34 | | subeq0 11608 |
. . . . . . . . . . . . . . . . . . . . 21
⊢ ((1
∈ ℂ ∧ 𝐴
∈ ℂ) → ((1 − 𝐴) = 0 ↔ 1 = 𝐴)) |
| 35 | 28, 29, 34 | sylancr 599 |
. . . . . . . . . . . . . . . . . . . 20
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → ((1 − 𝐴) = 0 ↔ 1 = 𝐴)) |
| 36 | 35 | necon3bid 3003 |
. . . . . . . . . . . . . . . . . . 19
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → ((1 − 𝐴) ≠ 0 ↔ 1 ≠ 𝐴)) |
| 37 | 33, 36 | mpbird 260 |
. . . . . . . . . . . . . . . . . 18
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → (1 − 𝐴) ≠ 0) |
| 38 | 31, 37 | reccld 12110 |
. . . . . . . . . . . . . . . . 17
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → (1 / (1 − 𝐴)) ∈
ℂ) |
| 39 | 31, 37 | recne0d 12111 |
. . . . . . . . . . . . . . . . 17
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → (1 / (1 − 𝐴)) ≠ 0) |
| 40 | 38, 39 | logcld 26925 |
. . . . . . . . . . . . . . . 16
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → (log‘(1 / (1 −
𝐴))) ∈
ℂ) |
| 41 | | subcl 11580 |
. . . . . . . . . . . . . . . . . . 19
⊢ ((𝐴 ∈ ℂ ∧ 1 ∈
ℂ) → (𝐴 −
1) ∈ ℂ) |
| 42 | 29, 28, 41 | sylancl 598 |
. . . . . . . . . . . . . . . . . 18
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → (𝐴 − 1) ∈ ℂ) |
| 43 | | simp2 1155 |
. . . . . . . . . . . . . . . . . 18
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → 𝐴 ≠ 0) |
| 44 | 42, 29, 43 | divcld 12117 |
. . . . . . . . . . . . . . . . 17
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → ((𝐴 − 1) / 𝐴) ∈ ℂ) |
| 45 | | subeq0 11608 |
. . . . . . . . . . . . . . . . . . . . 21
⊢ ((𝐴 ∈ ℂ ∧ 1 ∈
ℂ) → ((𝐴 −
1) = 0 ↔ 𝐴 =
1)) |
| 46 | 29, 28, 45 | sylancl 598 |
. . . . . . . . . . . . . . . . . . . 20
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → ((𝐴 − 1) = 0 ↔ 𝐴 = 1)) |
| 47 | 46 | necon3bid 3003 |
. . . . . . . . . . . . . . . . . . 19
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → ((𝐴 − 1) ≠ 0 ↔ 𝐴 ≠ 1)) |
| 48 | 32, 47 | mpbird 260 |
. . . . . . . . . . . . . . . . . 18
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → (𝐴 − 1) ≠ 0) |
| 49 | 42, 29, 48, 43 | divne0d 12133 |
. . . . . . . . . . . . . . . . 17
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → ((𝐴 − 1) / 𝐴) ≠ 0) |
| 50 | 44, 49 | logcld 26925 |
. . . . . . . . . . . . . . . 16
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → (log‘((𝐴 − 1) / 𝐴)) ∈ ℂ) |
| 51 | 40, 50 | addcld 11352 |
. . . . . . . . . . . . . . 15
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → ((log‘(1 / (1 −
𝐴))) + (log‘((𝐴 − 1) / 𝐴))) ∈ ℂ) |
| 52 | | logcl 26923 |
. . . . . . . . . . . . . . . 16
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → (log‘𝐴) ∈
ℂ) |
| 53 | 52 | 3adant3 1150 |
. . . . . . . . . . . . . . 15
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → (log‘𝐴) ∈ ℂ) |
| 54 | 51, 53 | addcld 11352 |
. . . . . . . . . . . . . 14
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → (((log‘(1 / (1 −
𝐴))) + (log‘((𝐴 − 1) / 𝐴))) + (log‘𝐴)) ∈ ℂ) |
| 55 | 3, 54 | eqeltrid 2868 |
. . . . . . . . . . . . 13
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → 𝑇 ∈ ℂ) |
| 56 | | ax-icn 11283 |
. . . . . . . . . . . . . 14
⊢ i ∈
ℂ |
| 57 | 56 | a1i 11 |
. . . . . . . . . . . . 13
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → i ∈
ℂ) |
| 58 | | ine0 11775 |
. . . . . . . . . . . . . 14
⊢ i ≠
0 |
| 59 | 58 | a1i 11 |
. . . . . . . . . . . . 13
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → i ≠ 0) |
| 60 | 55, 57, 59 | divcld 12117 |
. . . . . . . . . . . 12
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → (𝑇 / i) ∈ ℂ) |
| 61 | | 2picn 26813 |
. . . . . . . . . . . . 13
⊢ (2
· π) ∈ ℂ |
| 62 | 61 | a1i 11 |
. . . . . . . . . . . 12
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → (2 · π) ∈
ℂ) |
| 63 | | 2cn 12442 |
. . . . . . . . . . . . . 14
⊢ 2 ∈
ℂ |
| 64 | | picn 26812 |
. . . . . . . . . . . . . 14
⊢ π
∈ ℂ |
| 65 | | 2ne0 12473 |
. . . . . . . . . . . . . 14
⊢ 2 ≠
0 |
| 66 | | pine0 26816 |
. . . . . . . . . . . . . 14
⊢ π ≠
0 |
| 67 | 63, 64, 65, 66 | mulne0i 11983 |
. . . . . . . . . . . . 13
⊢ (2
· π) ≠ 0 |
| 68 | 67 | a1i 11 |
. . . . . . . . . . . 12
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → (2 · π) ≠
0) |
| 69 | 60, 62, 68 | divcld 12117 |
. . . . . . . . . . 11
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → ((𝑇 / i) / (2 · π)) ∈
ℂ) |
| 70 | 69 | adantr 486 |
. . . . . . . . . 10
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 < 𝑁) → ((𝑇 / i) / (2 · π)) ∈
ℂ) |
| 71 | | halfcn 12584 |
. . . . . . . . . 10
⊢ (1 / 2)
∈ ℂ |
| 72 | | subeq0 11608 |
. . . . . . . . . 10
⊢ ((((𝑇 / i) / (2 · π))
∈ ℂ ∧ (1 / 2) ∈ ℂ) → ((((𝑇 / i) / (2 · π)) − (1 / 2))
= 0 ↔ ((𝑇 / i) / (2
· π)) = (1 / 2))) |
| 73 | 70, 71, 72 | sylancl 598 |
. . . . . . . . 9
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 < 𝑁) → ((((𝑇 / i) / (2 · π)) − (1 / 2))
= 0 ↔ ((𝑇 / i) / (2
· π)) = (1 / 2))) |
| 74 | 27, 73 | mpbid 235 |
. . . . . . . 8
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 < 𝑁) → ((𝑇 / i) / (2 · π)) = (1 /
2)) |
| 75 | 60 | adantr 486 |
. . . . . . . . 9
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 < 𝑁) → (𝑇 / i) ∈ ℂ) |
| 76 | 61 | a1i 11 |
. . . . . . . . 9
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 < 𝑁) → (2 · π) ∈
ℂ) |
| 77 | 71 | a1i 11 |
. . . . . . . . 9
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 < 𝑁) → (1 / 2) ∈
ℂ) |
| 78 | 67 | a1i 11 |
. . . . . . . . 9
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 < 𝑁) → (2 · π) ≠
0) |
| 79 | 75, 76, 77, 78 | divmuld 12139 |
. . . . . . . 8
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 < 𝑁) → (((𝑇 / i) / (2 · π)) = (1 / 2) ↔
((2 · π) · (1 / 2)) = (𝑇 / i))) |
| 80 | 74, 79 | mpbid 235 |
. . . . . . 7
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 < 𝑁) → ((2 · π) · (1 /
2)) = (𝑇 /
i)) |
| 81 | 61, 63, 65 | divreci 12086 |
. . . . . . . 8
⊢ ((2
· π) / 2) = ((2 · π) · (1 / 2)) |
| 82 | 64, 63, 65 | divcan3i 12087 |
. . . . . . . 8
⊢ ((2
· π) / 2) = π |
| 83 | 81, 82 | eqtr3i 2788 |
. . . . . . 7
⊢ ((2
· π) · (1 / 2)) = π |
| 84 | 80, 83 | eqtr3di 2813 |
. . . . . 6
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 < 𝑁) → (𝑇 / i) = π) |
| 85 | 55 | adantr 486 |
. . . . . . 7
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 < 𝑁) → 𝑇 ∈ ℂ) |
| 86 | 56 | a1i 11 |
. . . . . . 7
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 < 𝑁) → i ∈ ℂ) |
| 87 | 64 | a1i 11 |
. . . . . . 7
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 < 𝑁) → π ∈
ℂ) |
| 88 | 58 | a1i 11 |
. . . . . . 7
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 < 𝑁) → i ≠ 0) |
| 89 | 85, 86, 87, 88 | divmuld 12139 |
. . . . . 6
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 < 𝑁) → ((𝑇 / i) = π ↔ (i · π) =
𝑇)) |
| 90 | 84, 89 | mpbid 235 |
. . . . 5
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 < 𝑁) → (i · π) = 𝑇) |
| 91 | 90 | eqcomd 2769 |
. . . 4
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 < 𝑁) → 𝑇 = (i · π)) |
| 92 | 91 | olcd 888 |
. . 3
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 < 𝑁) → (𝑇 = -(i · π) ∨ 𝑇 = (i · π))) |
| 93 | 64, 56 | mulneg1i 11786 |
. . . . . . 7
⊢ ( -π
· i) = -(π · i) |
| 94 | 64, 56 | mulcomi 11341 |
. . . . . . . 8
⊢ (π
· i) = (i · π) |
| 95 | 94 | negeqi 11574 |
. . . . . . 7
⊢ -(π
· i) = -(i · π) |
| 96 | 93, 95 | eqtri 2786 |
. . . . . 6
⊢ ( -π
· i) = -(i · π) |
| 97 | 71, 61 | mulneg1i 11786 |
. . . . . . . . . 10
⊢ ( -(1 /
2) · (2 · π)) = -((1 / 2) · (2 ·
π)) |
| 98 | 28, 63, 65 | divcan1i 12085 |
. . . . . . . . . . . . 13
⊢ ((1 / 2)
· 2) = 1 |
| 99 | 98 | oveq1i 7450 |
. . . . . . . . . . . 12
⊢ (((1 / 2)
· 2) · π) = (1 · π) |
| 100 | 71, 63, 64 | mulassi 11344 |
. . . . . . . . . . . 12
⊢ (((1 / 2)
· 2) · π) = ((1 / 2) · (2 ·
π)) |
| 101 | 64 | mullidi 11338 |
. . . . . . . . . . . 12
⊢ (1
· π) = π |
| 102 | 99, 100, 101 | 3eqtr3i 2794 |
. . . . . . . . . . 11
⊢ ((1 / 2)
· (2 · π)) = π |
| 103 | 102 | negeqi 11574 |
. . . . . . . . . 10
⊢ -((1 /
2) · (2 · π)) = -π |
| 104 | 97, 103 | eqtri 2786 |
. . . . . . . . 9
⊢ ( -(1 /
2) · (2 · π)) = -π |
| 105 | 28, 71 | negsubdii 11667 |
. . . . . . . . . . . . 13
⊢ -(1
− (1 / 2)) = ( -1 + (1 / 2)) |
| 106 | | 1mhlfehlf 12589 |
. . . . . . . . . . . . . 14
⊢ (1
− (1 / 2)) = (1 / 2) |
| 107 | 106 | negeqi 11574 |
. . . . . . . . . . . . 13
⊢ -(1
− (1 / 2)) = -(1 / 2) |
| 108 | 105, 107 | eqtr3i 2788 |
. . . . . . . . . . . 12
⊢ ( -1 + (1
/ 2)) = -(1 / 2) |
| 109 | | simpr 490 |
. . . . . . . . . . . . . 14
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 = 𝑁) → -1 = 𝑁) |
| 110 | 109, 1 | eqtrdi 2814 |
. . . . . . . . . . . . 13
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 = 𝑁) → -1 = (((𝑇 / i) / (2 · π)) − (1 /
2))) |
| 111 | 110 | oveq1d 7455 |
. . . . . . . . . . . 12
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 = 𝑁) → ( -1 + (1 / 2)) = ((((𝑇 / i) / (2 · π))
− (1 / 2)) + (1 / 2))) |
| 112 | 108, 111 | eqtr3id 2812 |
. . . . . . . . . . 11
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 = 𝑁) → -(1 / 2) = ((((𝑇 / i) / (2 · π)) − (1 / 2))
+ (1 / 2))) |
| 113 | | npcan 11590 |
. . . . . . . . . . . . 13
⊢ ((((𝑇 / i) / (2 · π))
∈ ℂ ∧ (1 / 2) ∈ ℂ) → ((((𝑇 / i) / (2 · π)) − (1 / 2))
+ (1 / 2)) = ((𝑇 / i) / (2
· π))) |
| 114 | 69, 71, 113 | sylancl 598 |
. . . . . . . . . . . 12
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → ((((𝑇 / i) / (2 · π)) − (1 / 2))
+ (1 / 2)) = ((𝑇 / i) / (2
· π))) |
| 115 | 114 | adantr 486 |
. . . . . . . . . . 11
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 = 𝑁) → ((((𝑇 / i) / (2 · π)) − (1 / 2))
+ (1 / 2)) = ((𝑇 / i) / (2
· π))) |
| 116 | 112, 115 | eqtrd 2798 |
. . . . . . . . . 10
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 = 𝑁) → -(1 / 2) = ((𝑇 / i) / (2 · π))) |
| 117 | 116 | oveq1d 7455 |
. . . . . . . . 9
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 = 𝑁) → ( -(1 / 2) · (2 ·
π)) = (((𝑇 / i) / (2
· π)) · (2 · π))) |
| 118 | 104, 117 | eqtr3id 2812 |
. . . . . . . 8
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 = 𝑁) → -π = (((𝑇 / i) / (2 · π)) · (2
· π))) |
| 119 | 60, 62, 68 | divcan1d 12118 |
. . . . . . . . 9
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → (((𝑇 / i) / (2 · π)) · (2
· π)) = (𝑇 /
i)) |
| 120 | 119 | adantr 486 |
. . . . . . . 8
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 = 𝑁) → (((𝑇 / i) / (2 · π)) · (2
· π)) = (𝑇 /
i)) |
| 121 | 118, 120 | eqtrd 2798 |
. . . . . . 7
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 = 𝑁) → -π = (𝑇 / i)) |
| 122 | 121 | oveq1d 7455 |
. . . . . 6
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 = 𝑁) → ( -π · i) = ((𝑇 / i) ·
i)) |
| 123 | 96, 122 | eqtr3id 2812 |
. . . . 5
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 = 𝑁) → -(i · π) = ((𝑇 / i) ·
i)) |
| 124 | 55, 57, 59 | divcan1d 12118 |
. . . . . 6
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → ((𝑇 / i) · i) = 𝑇) |
| 125 | 124 | adantr 486 |
. . . . 5
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 = 𝑁) → ((𝑇 / i) · i) = 𝑇) |
| 126 | 123, 125 | eqtr2d 2799 |
. . . 4
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 = 𝑁) → 𝑇 = -(i · π)) |
| 127 | 126 | orcd 887 |
. . 3
⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) ∧ -1 = 𝑁) → (𝑇 = -(i · π) ∨ 𝑇 = (i · π))) |
| 128 | | df-2 12429 |
. . . . . . . 8
⊢ 2 = (1 +
1) |
| 129 | 128 | negeqi 11574 |
. . . . . . 7
⊢ -2 = -(1
+ 1) |
| 130 | | negdi2 11640 |
. . . . . . . 8
⊢ ((1
∈ ℂ ∧ 1 ∈ ℂ) → -(1 + 1) = ( -1 −
1)) |
| 131 | 28, 28, 130 | mp2an 705 |
. . . . . . 7
⊢ -(1 + 1)
= ( -1 − 1) |
| 132 | 129, 131 | eqtri 2786 |
. . . . . 6
⊢ -2 = (
-1 − 1) |
| 133 | 4 | simpld 500 |
. . . . . 6
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → -2 < 𝑁) |
| 134 | 132, 133 | eqbrtrrid 5144 |
. . . . 5
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → ( -1 − 1) < 𝑁) |
| 135 | | neg1z 12756 |
. . . . . 6
⊢ -1
∈ ℤ |
| 136 | | zlem1lt 12772 |
. . . . . 6
⊢ (( -1
∈ ℤ ∧ 𝑁
∈ ℤ) → ( -1 ≤ 𝑁 ↔ ( -1 − 1) < 𝑁)) |
| 137 | 135, 9, 136 | sylancr 599 |
. . . . 5
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → ( -1 ≤ 𝑁 ↔ ( -1 − 1) < 𝑁)) |
| 138 | 134, 137 | mpbird 260 |
. . . 4
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → -1 ≤ 𝑁) |
| 139 | | neg1rr 12330 |
. . . . 5
⊢ -1
∈ ℝ |
| 140 | | leloe 11420 |
. . . . 5
⊢ (( -1
∈ ℝ ∧ 𝑁
∈ ℝ) → ( -1 ≤ 𝑁 ↔ ( -1 < 𝑁 ∨ -1 = 𝑁))) |
| 141 | 139, 21, 140 | sylancr 599 |
. . . 4
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → ( -1 ≤ 𝑁 ↔ ( -1 < 𝑁 ∨ -1 = 𝑁))) |
| 142 | 138, 141 | mpbid 235 |
. . 3
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → ( -1 < 𝑁 ∨ -1 = 𝑁)) |
| 143 | 92, 127, 142 | mpjaodan 973 |
. 2
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → (𝑇 = -(i · π) ∨ 𝑇 = (i · π))) |
| 144 | 3 | ovexi 7474 |
. . 3
⊢ 𝑇 ∈ V |
| 145 | 144 | elpr 4609 |
. 2
⊢ (𝑇 ∈ { -(i · π), (i
· π)} ↔ (𝑇 =
-(i · π) ∨ 𝑇 =
(i · π))) |
| 146 | 143, 145 | sylibr 237 |
1
⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝐴 ≠ 1) → 𝑇 ∈ { -(i · π), (i ·
π)}) |