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subClassOf
preferred label
  • thing
umbel:superClassOf
definition
  • Thing is the &quot;universal collection&quot;: the collection which, by definition, contains everything there is. Every thing in the Cyc ontology -- every Individual (of any kind), every Set_Mathematical, and every Collection -- is an instance of (see isa) Thing. Similarly, every collection is a subcollection of (see genls) Thing. Trivially, Thing is both an instance of and a subcollection of itself, and is not a subcollection of any other collection. (Note that the above reference to &quot;every thing in the Cyc ontology&quot; is <i>not</i> meant to be limited to things actually <i>reified</i> in the Cyc system, but includes (e.g.) every instance -- reified or not, known or not -- of every collection recognized by Cyc.)
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