Cardinal functions on compact F-spaces and on weakly countably complete Boolean algebras
نویسندگان
چکیده
منابع مشابه
On Countably Closed Complete Boolean Algebras
It is unprovable that every complete subalgebra of a countably closed complete Boolean algebra is countably closed. Introduction. A partially ordered set (P,<) is σ-closed if every countable chain in P has a lower bound. A complete Boolean algebra B is countably closed if (B, <) has a dense subset that is σ-closed. In [2] the first author introduced a weaker condition for Boolean algebras, game...
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ژورنال
عنوان ژورنال: Fundamenta Mathematicae
سال: 1981
ISSN: 0016-2736,1730-6329
DOI: 10.4064/fm-114-3-235-256