Search results
Create the page "Countability" on this wiki! See also the search results found.
- *<math>X</math> is [[Countability|second-countable]], i.e. it has a [[countable]] [[base (topology) | base]].2 KB (237 words) - 20:08, 13 October 2019
- == Countability axioms == The Sorgenfrey plane is [[countability axioms|first-countable]], is separable (has a countably dense subset, namel1 KB (205 words) - 10:20, 26 May 2019