About: http://webisa.webdatacommons.org/103602914

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	In particular, if n is a positive integer and m is its additive inverse, then m+n equals zero, and mX+nX must equal (m+n)X which must then also equal zero.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com