Closed may refer to:
Math
- Closure (mathematics)
- Closed manifold
- Closed orbits
- Closed set
- Closed differential form
- Closed map, a function that is closed.
Other
- Closed (poker), a betting round where no player will have the right to raise
- Closed GmbH, a German fashion brand
- Closed (album), 2010 album by Bomb Factory
Famous quotes containing the word closed:
“No domain of nature is quite closed to man at all times.”
—Henry David Thoreau (1817–1862)
“My old Father used to have a saying that “If you make a bad bargain, hug it the tighter”; and it occurs to me, that if the bargain you have just closed [marriage] can possibly be called a bad one, it is certainly the most pleasant one for applying that maxim to, which my fancy can, by any effort, picture.”
—Abraham Lincoln (1809–1865)
“One man’s observation is another man’s closed book or flight of fancy.”
—Willard Van Orman Quine (b. 1908)