About: http://webisa.webdatacommons.org/21965610

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 idea is that there is an obstruction to the existence of $f^3$ already on the one-dimensional level but not by obstructing the existence of $f^2$.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com