Description: A commutative ring is a ring. (Contributed by SN, 16-May-2024)
| Ref | Expression | ||
|---|---|---|---|
| Hypothesis | crngringd.1 | |- ( ph -> R e. CRing ) |
|
| Assertion | crngringd | |- ( ph -> R e. Ring ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | crngringd.1 | |- ( ph -> R e. CRing ) |
|
| 2 | crngring | |- ( R e. CRing -> R e. Ring ) |
|
| 3 | 1 2 | syl | |- ( ph -> R e. Ring ) |