Description: A commutative monoid is a monoid. (Contributed by SN, 1-Jun-2024)
| Ref | Expression | ||
|---|---|---|---|
| Hypothesis | cmnmndd.1 | |- ( ph -> G e. CMnd ) | |
| Assertion | cmnmndd | |- ( ph -> G e. Mnd ) | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | cmnmndd.1 | |- ( ph -> G e. CMnd ) | |
| 2 | cmnmnd | |- ( G e. CMnd -> G e. Mnd ) | |
| 3 | 1 2 | syl | |- ( ph -> G e. Mnd ) |