PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Boolean algebra consists of operators such as not, and, or, xor, nand, and nor. (I may have missed some - it is been a few years since I have dealt that directly with boolean algebra in the theoretical sense.) Addition, subtraction, multiplication, division - all of these are nonsensical in the boolean world.
http://www.w3.org/ns/prov#wasQuotedFrom
  • perlmonks.org