# Differences

This shows you the differences between two versions of the page.

countable_base_for_a_topology [2014/10/29 20:12] nikolaj old revision restored (2014/10/29 20:10) |
countable_base_for_a_topology [2014/10/29 20:13] (current) nikolaj |
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==== Discussion ==== | ==== Discussion ==== | ||

- | A base $B$ for a topology is a collection its open sets, which suffice to cover any other open set. | ||

- | |||

==== Parents ==== | ==== Parents ==== | ||

=== Context === | === Context === | ||

[[Topological space]] | [[Topological space]] | ||

=== Subset of === | === Subset of === | ||

- | [[Base for a topology]], [[Countable]] | + | [[Base for a topology]], [[Countable set]] |