PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The same coding issue arises in the halting problem, which is about whether there is a program that can answer questions about programs.
http://www.w3.org/ns/prov#wasQuotedFrom
  • mathoverflow.net