Metamath Proof Explorer


Theorem crngringd

Description: A commutative ring is a ring. (Contributed by SN, 16-May-2024)

Ref Expression
Hypothesis crngringd.1 φ R CRing
Assertion crngringd φ R Ring

Proof

Step Hyp Ref Expression
1 crngringd.1 φ R CRing
2 crngring R CRing R Ring
3 1 2 syl φ R Ring