Article contents
Converse dual cardinals
Published online by Cambridge University Press: 12 March 2014
Abstract
We investigate the set (ω) of partitions of the natural numbers ordered by ≤* where A ≤* B if by gluing finitely many blocks of A we can get a partition coarser than B. In particular, we determine the values of a number of cardinals which are naturally associated with the structure ((ω), ≥*), in terms of classical cardinal invariants of the continuum.
- Type
- Research Article
- Information
- Copyright
- Copyright © Association for Symbolic Logic 2006
References
REFERENCES
- 5
- Cited by