Database
BASIC ALGEBRAIC STRUCTURES
Rings
Ring unit
Semirings
srgmnd
Next ⟩
srgmgp
Metamath Proof Explorer
Ascii
Unicode
Theorem
srgmnd
Description:
A semiring is a monoid.
(Contributed by
Thierry Arnoux
, 21-Mar-2018)
Ref
Expression
Assertion
srgmnd
⊢
R
∈
SRing
→
R
∈
Mnd
Proof
Step
Hyp
Ref
Expression
1
srgcmn
⊢
R
∈
SRing
→
R
∈
CMnd
2
cmnmnd
⊢
R
∈
CMnd
→
R
∈
Mnd
3
1
2
syl
⊢
R
∈
SRing
→
R
∈
Mnd