Ackermann ordinal
id:
ackermann-ordinal-250-12602637
title:
Ackermann ordinal
text:
In mathematics, the Ackermann ordinal is a certain large countable ordinal, named after Wilhelm Ackermann. The term "Ackermann ordinal" is also occasionally used for the small Veblen ordinal, a somewhat larger ordinal. There is no standard notation for ordinals beyond the Feferman–Schütte ordinal Γ0. Most systems of notation use symbols such as ψ(α), θ(α), ψα(β), some of which are modifications of the Veblen functions to produce countable ordinals even for uncountable arguments, and some of whic
brand slug:
wiki
category slug:
encyclopedia
description:
Certain large countable ordinal
original url:
https://en.wikipedia.org/wiki/Ackermann_ordinal
date created:
date modified:
2024-02-05T20:02:36Z
main entity:
{"identifier":"Q4674253","url":"https://www.wikidata.org/entity/Q4674253"}
image:
fields total:
13
integrity:
14