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Mirrors > Home > MPE Home > Th. List > Mathboxes > df-csring | Structured version Visualization version GIF version |
Description: Define the class of all commutative semirings. (Contributed by metakunt, 4-Apr-2025.) |
Ref | Expression |
---|---|
df-csring | ⊢ CSRing = {𝑓 ∈ SRing ∣ (mulGrp‘𝑓) ∈ CMnd} |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ccsrg 41153 | . 2 class CSRing | |
2 | vf | . . . . . 6 setvar 𝑓 | |
3 | 2 | cv 1539 | . . . . 5 class 𝑓 |
4 | cmgp 20032 | . . . . 5 class mulGrp | |
5 | 3, 4 | cfv 6543 | . . . 4 class (mulGrp‘𝑓) |
6 | ccmn 19693 | . . . 4 class CMnd | |
7 | 5, 6 | wcel 2105 | . . 3 wff (mulGrp‘𝑓) ∈ CMnd |
8 | csrg 20084 | . . 3 class SRing | |
9 | 7, 2, 8 | crab 3431 | . 2 class {𝑓 ∈ SRing ∣ (mulGrp‘𝑓) ∈ CMnd} |
10 | 1, 9 | wceq 1540 | 1 wff CSRing = {𝑓 ∈ SRing ∣ (mulGrp‘𝑓) ∈ CMnd} |
Colors of variables: wff setvar class |
This definition is referenced by: iscsrg 41155 |
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