About: http://webisa.webdatacommons.org/150907547

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	It is said to be upper semicontinuous if it is upper semicontinuous at every point . is said to be lower semicontinuous at if, for each open set with , there is an open set containing such that, for each , .
http://www.w3.org/ns/prov#wasQuotedFrom	hindawi.com