Spaces of continuous characteristic functions
Raushan Z. Buzyakova (2006)
Commentationes Mathematicae Universitatis Carolinae
Similarity:
We show that if is first-countable, of countable extent, and a subspace of some ordinal, then is Lindelöf.
Displaying similar documents to “Lectures on ideal dichotomy”
Spaces of continuous characteristic functions
On the combinatorial principle P(c)
Murray Bell (1981)
Fundamenta Mathematicae
Similarity:
Invariant uniformization
Dale Myers (1976)
Fundamenta Mathematicae
Similarity:
On the form of countable admissible ordinals
Nigel J. Cutland (1978)
Colloquium Mathematicae
Similarity:
First countable and countable spaces all compactifications of which contain βN
Eric van Douwen, Teodor Przymusiński (1979)
Fundamenta Mathematicae
Similarity:
Is the product of ccc spaces a ccc space?
Nina M. Roy (1989)
Publicacions Matemàtiques
Similarity:
In this expository paper it is shown that Martin's Axiom and the negation of the Continuum Hypothesis imply that the product of ccc spaces is a ccc space. The Continuum Hypothesis is then used to construct the Laver-Gavin example of two ccc spaces whose product is not a ccc space.
Adding a random or a Cohen real: topological consequences and the effect on Martin's axiom
J. Roitman (1979)
Fundamenta Mathematicae
Similarity: