Article ID Journal Published Year Pages File Type
4662285 Annals of Pure and Applied Logic 2008 4 Pages PDF
Abstract

We prove that there is a -ideal of compact sets which is strictly above in the Tukey order. Here is the collection of all compact nowhere dense subsets of the Cantor set. This answers a question of Louveau and Veličković asked in [Alain Louveau, Boban Veličković, Analytic ideals and cofinal types, Ann. Pure Appl. Logic 99 (1–3) (1999) 171–195].

Related Topics
Physical Sciences and Engineering Mathematics Logic