Description: A left module is a commutative monoid under addition. (Contributed by NM, 7-Jan-2015)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | lmodcmn | ⊢ ( 𝑊 ∈ LMod → 𝑊 ∈ CMnd ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lmodabl | ⊢ ( 𝑊 ∈ LMod → 𝑊 ∈ Abel ) | |
| 2 | ablcmn | ⊢ ( 𝑊 ∈ Abel → 𝑊 ∈ CMnd ) | |
| 3 | 1 2 | syl | ⊢ ( 𝑊 ∈ LMod → 𝑊 ∈ CMnd ) |