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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. 
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 ==== Parents ==== ==== Parents ====
 === Context === === Context ===
 [[Topological space]] [[Topological space]]
 === Subset of === === Subset of ===
-[[Base for a topology]], [[Countable]]+[[Base for a topology]], [[Countable ​set]]
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