TheInfoList

Closed may refer to:

# Mathematics

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Closure (mathematics) In mathematics, a subset In mathematics Mathematics (from Ancient Greek, Greek: ) includes the study of such topics as quantity (number theory), mathematical structure, structure (algebra), space (geometry), and calculus, change (mathema ...
, a set, along with operations, for which applying those operations on members always results in a member of the set *
Closed set In geometry Geometry (from the grc, γεωμετρία; ' "earth", ' "measurement") is, with , one of the oldest branches of . It is concerned with properties of space that are related with distance, shape, size, and relative position of ...
, a set which contains all its limit points *
Closed interval In mathematics Mathematics (from Greek: ) includes the study of such topics as numbers (arithmetic and number theory), formulas and related structures (algebra), shapes and spaces in which they are contained (geometry), and quantities and ...
, an interval which includes its endpoints *
Closed line segment Image:Segment definition.svg, 250px, The geometric definition of a closed line segment: the intersection (Euclidean geometry), intersection of all points at or to the right of ''A'' with all points at or to the left of ''B'' In geometry, a line s ...
, a line segment which includes its endpoints *
Closed manifold In mathematics, a closed manifold is a manifold Manifold with boundary, without boundary that is Compact space, compact. In comparison, an open manifold is a manifold without boundary that has only ''non-compact'' components. Examples The onl ...
, a compact manifold which has no boundary

# Other uses

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Closed (poker){{Unreferenced, date=June 2009 In the game of poker Poker is any of a number of card games in which players wager over which hand A hand is a prehensile, multi- fingered appendage located at the end of the forearm The forearm is the re ...
, a betting round where no player will have the right to raise * ''Closed'' (album), a 2010 album by Bomb Factory *
Closed GmbH Closed GmbH is a German fashion brand which has produced jeans Jeans are a type of pants Trousers (British English), slacks, or pants are an item of clothing that might have originated in Central Asia, worn from the waist to the ankle ...
, a German fashion brand *
Closed class In traditional grammar A tradition is a belief A belief is an Attitude (psychology), attitude that something is the case, or that some proposition about the world is truth, true. In epistemology, philosophers use the term "belief" to refer t ...
, in linguistics, a class of words or other entities which rarely changes