An Entity of Type: Thing, from Named Graph: http://dbpedia.org, within Data Space: dbpedia-live.demo.openlinksw.com

Cardinal invariant of a topological space: given a space X, the cardinal κ such that for every family of κ nonempty open subsets of X, there is some point of X contained in κ of these subsets

Powered by OpenLink Virtuoso    This material is Open Knowledge     W3C Semantic Web Technology     This material is Open Knowledge    Valid XHTML + RDFa
This content was extracted from Wikipedia and is licensed under the Creative Commons Attribution-ShareAlike 4.0 International