About: http://webisa.webdatacommons.org/69622995

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	Of course, if R is a field then the group of units is the set of all nonzero elements, so one recovers the usual definition. -- Fropuff 22:30, 2005 Mar 23 (UTC)
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org