Metamath Proof Explorer


Theorem crngringd

Description: A commutative ring is a ring. (Contributed by Jeff Madsen, 10-Jun-2010) (Revised 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 )