Abstract
The Mycielski ideal Mk is defined to consist of all sets A ⊆ ℕk such that {f up harpoon right sign X : f ∈ A} ≠ Xk for all X ∈ [ℕ]א0. It will be shown that the covering numbers for these ideals are all equal. However, the covering numbers of the closely associated Rosłanowski ideals will be shown to be consistently different.
Original language | English |
---|---|
Pages (from-to) | 707-718 |
Number of pages | 12 |
Journal | Journal of Symbolic Logic |
Volume | 66 |
Issue number | 2 |
DOIs | |
State | Published - Jun 2001 |