About: http://webisa.webdatacommons.org/8245847

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	The process of deriving the theorem is a proof (we can prove a piece of SQL correct because it is based on relational calculus/algebra).
http://www.w3.org/ns/prov#wasQuotedFrom	c2.com