<http://webisa.webdatacommons.org/prov/450157721>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/156767660> .
<http://webisa.webdatacommons.org/156767660>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/156767660>	<http://www.w3.org/ns/prov#value>	"We have just proved that if P is a nonempty perfect set in a Euclidean space, then P is not countable." .
<http://webisa.webdatacommons.org/156767660>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<blogspot.com> .