PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Pick a Minkowski coordinate system in the neighborhood of that event.My understanding is that the Cambridge geometry group figured out how to uniquely extend that local Minkowski coordinate system into a flat coordinate system that works for all the charts, except possibly for the ones inside of black holes.They figured out how to extend the local structure of spacetime to a fully global structure
http://www.w3.org/ns/prov#wasQuotedFrom
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