Source: wikibot/additively-indecomposable-ordinal
= Additively indecomposable ordinal
{wiki=Additively_indecomposable_ordinal}
An additively indecomposable ordinal is a type of ordinal number that cannot be expressed as the sum of two smaller ordinals. In formal terms, an ordinal \\(\\alpha\\) is considered additively indecomposable if, whenever \\(\\alpha = \\beta + \\gamma\\) for some ordinals \\(\\beta\\) and \\(\\gamma\\), at least one of \\(\\beta\\) or \\(\\gamma\\) must be zero.