| Metamath Proof Explorer |
< Previous
Next >
Related theorems Unicode version |
| Description: Define the complex number 1 (base 10). |
| Ref | Expression |
|---|---|
| df-1 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | c1 5215 |
. 2
| |
| 2 | c1r 4975 |
. . 3
| |
| 3 | c0r 4974 |
. . 3
| |
| 4 | 2, 3 | cop 2407 |
. 2
|
| 5 | 1, 4 | wceq 954 |
1
|
| Colors of variables: wff set class |
| This definition is referenced by: ax1cn 5249 ax1ne0 5260 ax1id 5262 axrrecex 5264 axi2m1 5265 |