Metamath Proof Explorer


Theorem trgtps

Description: A topological ring is a topological space. (Contributed by Mario Carneiro, 5-Oct-2015)

Ref Expression
Assertion trgtps ⊢ R ∈ TopRing → R ∈ TopSp

Proof

Step Hyp Ref Expression
1 trgtgp ⊢ R ∈ TopRing → R ∈ TopGrp
2 tgptps ⊢ R ∈ TopGrp → R ∈ TopSp
3 1 2 syl ⊢ R ∈ TopRing → R ∈ TopSp