(Q3366885)
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Wikipedia(4 entries)
- dewiki Konstruierbare Menge (Topologie)
- elwiki Κατασκευάσιμο σύνολο (τοπολογία)
- enwiki Constructible set (topology)
- frwiki Partie constructible
in a topological space, a subset expressible as a finite union of locally closed subsets