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