About: http://webisa.webdatacommons.org/198313805

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	@Isaac: re (3), any distinction between precalculus" and abstract flavors of algebra would also apply to probability, geometry, logic, statistics, number theory and other subjects.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com