Description: A topological division ring is a topological space. (Contributed by Mario Carneiro, 5-Oct-2015)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | tdrgtps | ⊢ ( 𝑅 ∈ TopDRing → 𝑅 ∈ TopSp ) | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | tdrgtrg | ⊢ ( 𝑅 ∈ TopDRing → 𝑅 ∈ TopRing ) | |
| 2 | trgtps | ⊢ ( 𝑅 ∈ TopRing → 𝑅 ∈ TopSp ) | |
| 3 | 1 2 | syl | ⊢ ( 𝑅 ∈ TopDRing → 𝑅 ∈ TopSp ) |