<http://webisa.webdatacommons.org/413131198>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/124626370>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/413131198> .
<http://webisa.webdatacommons.org/413131198>	<http://www.w3.org/ns/prov#value>	"Let X be a lattice, e.g. X=N. Further, let" .
<http://webisa.webdatacommons.org/413131198>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<uni-ulm.de> .