Metamath Proof Explorer


Definition df-csring

Description: Define the class of all commutative semirings. (Contributed by metakunt, 4-Apr-2025)

Ref Expression
Assertion df-csring CSRing = { 𝑓 ∈ SRing ∣ ( mulGrp ‘ 𝑓 ) ∈ CMnd }

Detailed syntax breakdown

Step Hyp Ref Expression
0 ccsrg CSRing
1 vf 𝑓
2 csrg SRing
3 cmgp mulGrp
4 1 cv 𝑓
5 4 3 cfv ( mulGrp ‘ 𝑓 )
6 ccmn CMnd
7 5 6 wcel ( mulGrp ‘ 𝑓 ) ∈ CMnd
8 7 1 2 crab { 𝑓 ∈ SRing ∣ ( mulGrp ‘ 𝑓 ) ∈ CMnd }
9 0 8 wceq CSRing = { 𝑓 ∈ SRing ∣ ( mulGrp ‘ 𝑓 ) ∈ CMnd }