Email this page to a friend

Countable

<mathematics> A term describing a set which is isomorphic to a subet of the natural numbers.

A countable set has "countably many" elements.

If the isomorphism is stated explicitly then the set is called "a counted set" or "an enumeration".

Examples of countable sets are any finite set, the natural numbers, integers, and rational numbers.

The real numbers and complex numbers are not [proof?].

< Previous Terms	Terms Containing countable	Next Terms >
Cost Driver Attribute Cost/Schedule Control System Criteria COTS Cougar cough and die	algebraic Axiom of Choice Cantor computability theory constructive	countably many counted country code coupling Course Author Language