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:

    “Pray but one prayer for me ‘twixt thy closed lips,
    Think but one thought of me up in the stars.”
    —William Morris (1834–1896)

    “Whither I go, thither shall you go too;
    Today will I set forth, tomorrow you.”
    —William Shakespeare (1564–1616)