Displaying similar documents to “The structure of ω 1 -like orderings”

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Raushan Z. Buzyakova (2006)

Commentationes Mathematicae Universitatis Carolinae

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We show that if X is first-countable, of countable extent, and a subspace of some ordinal, then C p ( X , 2 ) is Lindelöf.

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Andrés Eduardo Caicedo, John Daniel Clemens, Clinton Taylor Conley, Benjamin David Miller (2011)

Fundamenta Mathematicae

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We characterize the class of definable families of countable sets for which there is a single countable definable set intersecting every element of the family.