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Description: A division ring is a group (deduction form). (Contributed by SN, 16-May-2024)
| Ref | Expression | ||
|---|---|---|---|
| Hypothesis | drngringd.1 | ||
| Assertion | drnggrpd |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | drngringd.1 | ||
| 2 | 1 | drngringd | |
| 3 | 2 | ringgrpd |