About: http://webisa.webdatacommons.org/420130895

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	In logic, a tautology is a statement that is always true in a truth table.
http://www.w3.org/ns/prov#wasQuotedFrom	physorg.com