Database
BASIC ALGEBRAIC STRUCTURES
Groups
Abelian groups
Definition and basic properties
cmnmndd
Next ⟩
rinvmod
Metamath Proof Explorer
Ascii
Unicode
Theorem
cmnmndd
Description:
A commutative monoid is a monoid.
(Contributed by
SN
, 1-Jun-2024)
Ref
Expression
Hypothesis
cmnmndd.1
⊢
φ
→
G
∈
CMnd
Assertion
cmnmndd
⊢
φ
→
G
∈
Mnd
Proof
Step
Hyp
Ref
Expression
1
cmnmndd.1
⊢
φ
→
G
∈
CMnd
2
cmnmnd
⊢
G
∈
CMnd
→
G
∈
Mnd
3
1
2
syl
⊢
φ
→
G
∈
Mnd