Closed
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Closed".

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Closed may refer to:

Math

• Closure (mathematics)
• Closed manifold
• Closed orbits
• Closed set
• Closed one-form

Other

• Cloister, a closed walkway
• Closed-circuit television

See also

• All pages beginning with Closed
• Open

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