PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • tement may be a theorem of ZF, or it may be independent of ZF but a theorem of ZFC. On the other hand, we can ask whether there is an explicit set-theoretic formula defining a set $P^\*$ and a proof that $F(P^\*)$ holds.
http://www.w3.org/ns/prov#wasQuotedFrom
  • mathoverflow.net