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:
“It is the small doubts of timid souls that accomplish their ruin. It is the narrow vision, the fear and trembling hesitation, that constitute defeat.”
—Alice Foote MacDougall (1867–1945)