Natural number

Revision as of 17:35, 19 June 2006 by Fedja (talk | contribs)

The natural numbers, denoted by the set $\mathbb{N}$, is itself a subset of the integers $\displaystyle\mathbb{Z}$, which is a subset of the reals, $\mathbb{R}$. The natural numbers can be defined as every integer greater than or equal to 1. Don't confuse this with the whole numbers, starting at 0.