Description: Define the identity polynomial. (Contributed by Mario Carneiro, 17-Jul-2014)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | df-idp | |- Xp = ( _I |` CC ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 0 | cidp | |- Xp |
|
| 1 | cid | |- _I |
|
| 2 | cc | |- CC |
|
| 3 | 1 2 | cres | |- ( _I |` CC ) |
| 4 | 0 3 | wceq | |- Xp = ( _I |` CC ) |