PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • So instead of assuming that mass is a constant, as has been assumed for centuries preceding him, he considered it a variable and differentiated it, using a product rule and showed that, with his insights such as speed-of-light is a constant in wave theory of light; mass must depend on speed of objects.
http://www.w3.org/ns/prov#wasQuotedFrom
  • mdashf.org