Adjoining cofinitary permutations
Abstract
We show that it is consistent with ZFC + -CH that there is a maximal cofinitary group (or, maximal almost disjoint group) G less than or equal to Sym(omega) such that G is a proper subset of an almost disjoint Family A subset of or equal to sym(omega) and \ G \ < \ A \. We also ask several questions in this area.
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- Makale [92796]