Encyclopedia > Countable sets

Article Content

Countable sets

A set for which there exists a bijective mapping to the natural numbers, or if you prefer, to the integers.

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

Thomas a Kempis

... Gordon carried it with him to the battlefield. Few books have had so extensive a circulation. The number of counted editions exceeds 2,000; and 1,000 differen ...