Proof of Theorem cj11OLD
| Step | Hyp | Ref
| Expression |
| 1 | | neg11 5563 |
. . . . 5
⊢ (((ℑ ‘A)
∈ ℂ ⋀ (ℑ
‘B) ∈ ℂ) →
(-(ℑ ‘A) = -(ℑ
‘B) ↔ (ℑ ‘A) =
(ℑ ‘B))) |
| 2 | | imcl 6959 |
. . . . . 6
⊢ (A ∈ ℂ → (ℑ
‘A) ∈ ℝ) |
| 3 | 2 | recnd 5469 |
. . . . 5
⊢ (A ∈ ℂ → (ℑ
‘A) ∈ ℂ) |
| 4 | | imcl 6959 |
. . . . . 6
⊢ (B ∈ ℂ → (ℑ
‘B) ∈ ℝ) |
| 5 | 4 | recnd 5469 |
. . . . 5
⊢ (B ∈ ℂ → (ℑ
‘B) ∈ ℂ) |
| 6 | 1, 3, 5 | syl2an 456 |
. . . 4
⊢ ((A ∈ ℂ ⋀ B ∈ ℂ) → (-(ℑ
‘A) = -(ℑ ‘B)
↔ (ℑ ‘A) = (ℑ
‘B))) |
| 7 | 6 | anbi2d 619 |
. . 3
⊢ ((A ∈ ℂ ⋀ B ∈ ℂ) → (((ℜ
‘A) = (ℜ ‘B)
⋀ -(ℑ
‘A) = -(ℑ ‘B))
↔ ((ℜ ‘A) = (ℜ
‘B) ⋀ (ℑ
‘A) = (ℑ ‘B)))) |
| 8 | | cru 6939 |
. . . 4
⊢ ((((ℜ ‘A)
∈ ℝ ⋀ -(ℑ
‘A) ∈ ℝ) ⋀ ((ℜ
‘B) ∈ ℝ ⋀ -(ℑ
‘B) ∈ ℝ)) →
(((ℜ ‘A) + (i · -(ℑ ‘A)))
= ((ℜ ‘B) + (i · -(ℑ ‘B)))
↔ ((ℜ ‘A) = (ℜ
‘B) ⋀ -(ℑ
‘A) = -(ℑ ‘B)))) |
| 9 | | recl 6958 |
. . . . 5
⊢ (A ∈ ℂ → (ℜ
‘A) ∈ ℝ) |
| 10 | | renegcl 5591 |
. . . . . 6
⊢ ((ℑ ‘A)
∈ ℝ →
-(ℑ ‘A) ∈ ℝ) |
| 11 | 2, 10 | syl 10 |
. . . . 5
⊢ (A ∈ ℂ → -(ℑ
‘A) ∈ ℝ) |
| 12 | 9, 11 | jca 286 |
. . . 4
⊢ (A ∈ ℂ → ((ℜ
‘A) ∈ ℝ ⋀ -(ℑ
‘A) ∈ ℝ)) |
| 13 | | recl 6958 |
. . . . 5
⊢ (B ∈ ℂ → (ℜ
‘B) ∈ ℝ) |
| 14 | | renegcl 5591 |
. . . . . 6
⊢ ((ℑ ‘B)
∈ ℝ →
-(ℑ ‘B) ∈ ℝ) |
| 15 | 4, 14 | syl 10 |
. . . . 5
⊢ (B ∈ ℂ → -(ℑ
‘B) ∈ ℝ) |
| 16 | 13, 15 | jca 286 |
. . . 4
⊢ (B ∈ ℂ → ((ℜ
‘B) ∈ ℝ ⋀ -(ℑ
‘B) ∈ ℝ)) |
| 17 | 8, 12, 16 | syl2an 456 |
. . 3
⊢ ((A ∈ ℂ ⋀ B ∈ ℂ) → (((ℜ
‘A) + (i · -(ℑ ‘A)))
= ((ℜ ‘B) + (i · -(ℑ ‘B)))
↔ ((ℜ ‘A) = (ℜ
‘B) ⋀ -(ℑ
‘A) = -(ℑ ‘B)))) |
| 18 | | cru 6939 |
. . . 4
⊢ ((((ℜ ‘A)
∈ ℝ ⋀ (ℑ
‘A) ∈ ℝ) ⋀ ((ℜ
‘B) ∈ ℝ ⋀ (ℑ
‘B) ∈ ℝ)) →
(((ℜ ‘A) + (i · (ℑ ‘A)))
= ((ℜ ‘B) + (i · (ℑ ‘B)))
↔ ((ℜ ‘A) = (ℜ
‘B) ⋀ (ℑ
‘A) = (ℑ ‘B)))) |
| 19 | 9, 2 | jca 286 |
. . . 4
⊢ (A ∈ ℂ → ((ℜ
‘A) ∈ ℝ ⋀ (ℑ
‘A) ∈ ℝ)) |
| 20 | 13, 4 | jca 286 |
. . . 4
⊢ (B ∈ ℂ → ((ℜ
‘B) ∈ ℝ ⋀ (ℑ
‘B) ∈ ℝ)) |
| 21 | 18, 19, 20 | syl2an 456 |
. . 3
⊢ ((A ∈ ℂ ⋀ B ∈ ℂ) → (((ℜ
‘A) + (i · (ℑ ‘A)))
= ((ℜ ‘B) + (i · (ℑ ‘B)))
↔ ((ℜ ‘A) = (ℜ
‘B) ⋀ (ℑ
‘A) = (ℑ ‘B)))) |
| 22 | 7, 17, 21 | 3bitr4d 553 |
. 2
⊢ ((A ∈ ℂ ⋀ B ∈ ℂ) → (((ℜ
‘A) + (i · -(ℑ ‘A)))
= ((ℜ ‘B) + (i · -(ℑ ‘B)))
↔ ((ℜ ‘A) + (i · (ℑ ‘A)))
= ((ℜ ‘B) + (i · (ℑ ‘B))))) |
| 23 | | negsub 5536 |
. . . . 5
⊢ (((ℜ ‘A)
∈ ℂ ⋀ (i · (ℑ ‘A))
∈ ℂ)
→ ((ℜ ‘A) + -(i · (ℑ ‘A)))
= ((ℜ ‘A) − (i · (ℑ ‘A)))) |
| 24 | 9 | recnd 5469 |
. . . . 5
⊢ (A ∈ ℂ → (ℜ
‘A) ∈ ℂ) |
| 25 | | axicn 5424 |
. . . . . . 7
⊢ i ∈ ℂ |
| 26 | | mulcl 5457 |
. . . . . . 7
⊢ ((i ∈ ℂ ⋀ (ℑ
‘A) ∈ ℂ) →
(i · (ℑ ‘A)) ∈ ℂ) |
| 27 | 25, 26 | mpan 699 |
. . . . . 6
⊢ ((ℑ ‘A)
∈ ℂ →
(i · (ℑ ‘A)) ∈ ℂ) |
| 28 | 3, 27 | syl 10 |
. . . . 5
⊢ (A ∈ ℂ → (i · (ℑ ‘A))
∈ ℂ) |
| 29 | 23, 24, 28 | sylanc 473 |
. . . 4
⊢ (A ∈ ℂ → ((ℜ
‘A) + -(i · (ℑ ‘A)))
= ((ℜ ‘A) − (i · (ℑ ‘A)))) |
| 30 | 3, 25 | jctil 290 |
. . . . . 6
⊢ (A ∈ ℂ → (i ∈ ℂ ⋀ (ℑ
‘A) ∈ ℂ)) |
| 31 | | mulneg2 5606 |
. . . . . 6
⊢ ((i ∈ ℂ ⋀ (ℑ
‘A) ∈ ℂ) →
(i · -(ℑ ‘A)) = -(i · (ℑ ‘A))) |
| 32 | 30, 31 | syl 10 |
. . . . 5
⊢ (A ∈ ℂ → (i · -(ℑ ‘A)) =
-(i · (ℑ ‘A))) |
| 33 | 32 | opreq2d 4034 |
. . . 4
⊢ (A ∈ ℂ → ((ℜ
‘A) + (i · -(ℑ ‘A)))
= ((ℜ ‘A) + -(i · (ℑ ‘A)))) |
| 34 | | cjval 6964 |
. . . 4
⊢ (A ∈ ℂ → (∗
‘A) = ((ℜ ‘A)
− (i · (ℑ
‘A)))) |
| 35 | 29, 33, 34 | 3eqtr4rd 1561 |
. . 3
⊢ (A ∈ ℂ → (∗
‘A) = ((ℜ ‘A) +
(i · -(ℑ ‘A)))) |
| 36 | | negsub 5536 |
. . . . 5
⊢ (((ℜ ‘B)
∈ ℂ ⋀ (i · (ℑ ‘B))
∈ ℂ)
→ ((ℜ ‘B) + -(i · (ℑ ‘B)))
= ((ℜ ‘B) − (i · (ℑ ‘B)))) |
| 37 | 13 | recnd 5469 |
. . . . 5
⊢ (B ∈ ℂ → (ℜ
‘B) ∈ ℂ) |
| 38 | | mulcl 5457 |
. . . . . . 7
⊢ ((i ∈ ℂ ⋀ (ℑ
‘B) ∈ ℂ) →
(i · (ℑ ‘B)) ∈ ℂ) |
| 39 | 25, 38 | mpan 699 |
. . . . . 6
⊢ ((ℑ ‘B)
∈ ℂ →
(i · (ℑ ‘B)) ∈ ℂ) |
| 40 | 5, 39 | syl 10 |
. . . . 5
⊢ (B ∈ ℂ → (i · (ℑ ‘B))
∈ ℂ) |
| 41 | 36, 37, 40 | sylanc 473 |
. . . 4
⊢ (B ∈ ℂ → ((ℜ
‘B) + -(i · (ℑ ‘B)))
= ((ℜ ‘B) − (i · (ℑ ‘B)))) |
| 42 | 5, 25 | jctil 290 |
. . . . . 6
⊢ (B ∈ ℂ → (i ∈ ℂ ⋀ (ℑ
‘B) ∈ ℂ)) |
| 43 | | mulneg2 5606 |
. . . . . 6
⊢ ((i ∈ ℂ ⋀ (ℑ
‘B) ∈ ℂ) →
(i · -(ℑ ‘B)) = -(i · (ℑ ‘B))) |
| 44 | 42, 43 | syl 10 |
. . . . 5
⊢ (B ∈ ℂ → (i · -(ℑ ‘B)) =
-(i · (ℑ ‘B))) |
| 45 | 44 | opreq2d 4034 |
. . . 4
⊢ (B ∈ ℂ → ((ℜ
‘B) + (i · -(ℑ ‘B)))
= ((ℜ ‘B) + -(i · (ℑ ‘B)))) |
| 46 | | cjval 6964 |
. . . 4
⊢ (B ∈ ℂ → (∗
‘B) = ((ℜ ‘B)
− (i · (ℑ
‘B)))) |
| 47 | 41, 45, 46 | 3eqtr4rd 1561 |
. . 3
⊢ (B ∈ ℂ → (∗
‘B) = ((ℜ ‘B) +
(i · -(ℑ ‘B)))) |
| 48 | 35, 47 | eqeqan12d 1533 |
. 2
⊢ ((A ∈ ℂ ⋀ B ∈ ℂ) → ((∗
‘A) = (∗ ‘B)
↔ ((ℜ ‘A) + (i · -(ℑ ‘A)))
= ((ℜ ‘B) + (i · -(ℑ ‘B))))) |
| 49 | | replim 6962 |
. . 3
⊢ (A ∈ ℂ → A =
((ℜ ‘A) + (i · (ℑ ‘A)))) |
| 50 | | replim 6962 |
. . 3
⊢ (B ∈ ℂ → B =
((ℜ ‘B) + (i · (ℑ ‘B)))) |
| 51 | 49, 50 | eqeqan12d 1533 |
. 2
⊢ ((A ∈ ℂ ⋀ B ∈ ℂ) → (A =
B ↔ ((ℜ ‘A) +
(i · (ℑ ‘A))) = ((ℜ
‘B) + (i · (ℑ ‘B))))) |
| 52 | 22, 48, 51 | 3bitr4d 553 |
1
⊢ ((A ∈ ℂ ⋀ B ∈ ℂ) → ((∗
‘A) = (∗ ‘B)
↔ A = B)) |