Encyclopedia > Collection

Article Content

Collection

In common usage, a collection is any group of items that has one or more properties in common. For example, paintings from the same artist, or coins from Germany before 1900, see collecting and collectible.

In mathematics, collection is another term for set, or sometimes for class.

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

List of closed London Underground stations

... & Eton Central station[?] Essex Road station[?] Drayton Park station[?] References J. E. Connor, London's Disused Underground Stations, Capital Transport, 2001 ...