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Description: A commutative ring is a group. (Contributed by SN, 16-May-2024)
| Ref | Expression | ||
|---|---|---|---|
| Hypothesis | crngringd.1 | ||
| Assertion | crnggrpd |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | crngringd.1 | ||
| 2 | 1 | crngringd | |
| 3 | 2 | ringgrpd |