Metamath Proof Explorer
Definition df-1
Description: Define the complex number 1. (Contributed by NM, 22-Feb-1996)
(New usage is discouraged.)
|
|
Ref |
Expression |
|
Assertion |
df-1 |
|
Detailed syntax breakdown
| Step |
Hyp |
Ref |
Expression |
| 0 |
|
c1 |
|
| 1 |
|
c1r |
|
| 2 |
|
c0r |
|
| 3 |
1 2
|
cop |
|
| 4 |
0 3
|
wceq |
|