In mathematics, the small Veblen ordinal is a certain large countable ordinal, named after Oswald Veblen.
, some of which are modifications of the Veblen functions to produce countable ordinals even for uncountable arguments, and some of which are "collapsing functions".
is the limit of ordinals that can be described using a version of Veblen functions with finitely many arguments.
It is the ordinal that measures the strength of Kruskal's theorem.
It is also the ordinal type of a certain ordering of rooted trees (Jervell 2005).
You can help Wikipedia by expanding it.This article about a number is a stub.