Source: wikibot/even-and-odd-ordinals
= Even and odd ordinals
{wiki=Even_and_odd_ordinals}
In set theory, ordinals are a type of ordinal number that extend the concept of natural numbers to describe the order type of well-ordered sets. Ordinals can be classified into two main categories: even ordinals and odd ordinals, similar to how natural numbers are classified. 1. **Even Ordinals**: An ordinal is considered even if it can be expressed in the form \\(2n\\), where \\(n\\) is a natural number (including 0).