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• 19:29, 29 March 2024 GiverOfThePeace talk contribs created page Cardinality (Created page with "center|600px ==Introduction== In mathematics, the '''cardinality''' of a set is a measure of the number of elements of the set. For example, the set ''A'' = {2, 4, 6} contains 3 elements, and therefore ''A'' has a cardinality of 3. The cardinality of a set ''A'' is usually denoted ''|A|'' with a vertical bar on each side; this is the same notation as absolute value, and the meaning depends on context. The cardinality of the natural numbers is...")