The small Veblen ordinal or or 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).
Famous quotes containing the word small:
“Westron wind, when will thou blow?
The small rain down can rain.
Christ, that my love were in my arms,
And I in my bed again.”
—Unknown. Western Wind (l. 14)