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  • Rule: ActivityStreamsMapasEquivalentb3sb3sifpdbprdf-labelfacetshttp://dbpedia.org/resource/inference/rules/dbpedia#http://dbpedia.org/resource/inference/rules/opencyc#http://dbpedia.org/resource/inference/rules/umbel#http://dbpedia.org/resource/inference/rules/yago#http://dbpedia.org/schema/property_rules#http://www.ontologyportal.org/inference/rules/SUMO#http://www.ontologyportal.org/inference/rules/WordNet#http://www.w3.org/2002/07/owl#ldpoplwebskos-transurn:det:rdf:labelvirtrdf-labelvirtrdf-urlNone
    
  • Inverse Functional Properties: Disabled (fastest) Apply to subjects only Apply to objects only Apply to both subjects and objects
  • "Same As": Disabled (fastest) Apply to subjects only Apply to objects only Apply to both subjects and objects (recommended) Apply to subjects, objects and predicates (not recommended on big datasets) Apply to predicates only (special use cases only)

About: Null sign     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:Symbol106806469, within Data Space : dbpedia.org associated with source document(s)

Type: Thingyago:WikicatMathematicalSymbolsyago:Abstraction100002137yago:Character106818970yago:Communication100033020yago:MathematicalSymbol106840047yago:WrittenSymbol106817623yago:Signal106791372yago:Symbol106806469 New Facet based on Instances of this Class

The null sign (∅) is often used in mathematics for denoting the empty set (however, the variant seems more commonly used). The same letter in linguistics represents zero, the lack of an element. It is commonly used in phonology, morphology, and syntax.