Description: Topology component of a subring algebra. (Contributed by Mario Carneiro, 4-Oct-2015) (Revised by Thierry Arnoux, 16-Jun-2019)
Ref | Expression | ||
---|---|---|---|
Hypotheses | srapart.a | ||
srapart.s | |||
Assertion | sratopn |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | srapart.a | ||
2 | srapart.s | ||
3 | 1 2 | srabase | |
4 | 1 2 | sratset | |
5 | 3 4 | topnpropd |