Closed Set

In geometry, topology, and related branches of mathematics, a closed set is a set whose complement is an open set. In a topological space, a closed set can be defined as a set which contains all its limit points. In a complete metric space, a closed set is a set which is closed under the limit operation.

Read more about Closed Set:  Equivalent Definitions of A Closed Set, Properties of Closed Sets, Examples of Closed Sets, More About Closed Sets

Famous quotes containing the words closed and/or set:

    “One man’s observation is another man’s closed book or flight of fancy.”
    —Willard Van Orman Quine (b. 1908)

    “Ye ugly, creepin, blastit wonner,
    Detested, shunn’d by saunt an’ sinner,
    How dare ye set your fit upon her,
    Sae fine a lady!”
    —Robert Burns (1759–1796)