cardinality

2 definitions found

cardinality - WordNet (r) 2.1 (2005) :

  cardinality
      n 1: (mathematics) the number of elements in a set or group
           (considered as a property of that grouping)

cardinality - Free On-line Dictionary of Computing (26 May 2007) :

  cardinality
  
     <mathematics> The number of elements in a set.  If two sets
     have the same number of elements (i.e. there is a bijection
     between them) then they have the same cardinality.  A
     cardinality is thus an isomorphism class in the category
     of sets.
  
     aleph 0 is defined as the cardinality of the first
     infinite ordinal, omega (the number of natural numbers
     ).
  
     (1995-03-29)