About: http://webisa.webdatacommons.org/173431383

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	This means that a congruence is an equivalence relation on the underlying set and the quotient alegbraic structure has underlying set the set-quotient of the congruence.
http://www.w3.org/ns/prov#wasQuotedFrom	mathoverflow.net