Closed

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Closed may refer to:

Mathematics[edit]

  • A set is closed under a set of operations when applying those operations on its members always results in another member.
    • A set is a closed when it is closed under limits, that is, it contains all its limit points.
      • An interval is closed when it includes its endpoints.

Other[edit]

  • In linguistics, a closed class is a class of words or other entities which rarely changes.

See also[edit]