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PrefixNamespace IRI
dbpedia-owlhttp://dbpedia.org/ontology/
foafhttp://xmlns.com/foaf/0.1/
n7http://commons.wikimedia.org/wiki/Special:FilePath/Nullset.
rdfshttp://www.w3.org/2000/01/rdf-schema#
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
n5http://commons.wikimedia.org/wiki/Special:FilePath/Nullset.svg?width=
xsdhhttp://www.w3.org/2001/XMLSchema#
dbpediahttp://dbpedia.org/resource/
Subject Item
dbpedia:Empty_set
rdfs:comment
In mathematics, and more specifically set theory, the empty set is the unique set having no elements; its size or cardinality (count of elements in a set) is zero. Some axiomatic set theories ensure that the empty set exists by including an axiom of empty set; in other theories, its existence can be deduced. Many possible properties of sets are trivially true for the empty set.Null set was once a common synonym for "empty set", but is now a technical term in measure theory.
foaf:depiction
n7:svg
dbpedia-owl:thumbnail
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