Metamath Proof Explorer


Theorem drngringd

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

Ref Expression
Hypothesis drngringd.1 ⊢ φ → R ∈ DivRing
Assertion drngringd ⊢ φ → R ∈ Ring

Proof

Step Hyp Ref Expression
1 drngringd.1 ⊢ φ → R ∈ DivRing
2 drngring ⊢ R ∈ DivRing → R ∈ Ring
3 1 2 syl ⊢ φ → R ∈ Ring