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Sequential separability vs selective sequential separability
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A space X is sequentially separable if there is a countable D ? X such that
every point of X is the limit of a sequence of points from D. We present two
examples of a sequentially separable space which is not selectively
sequentially separable. One of them is in addition countable and sequential.
Title: Sequential separability vs selective sequential separability
Description:
A space X is sequentially separable if there is a countable D ? X such that
every point of X is the limit of a sequence of points from D.
We present two
examples of a sequentially separable space which is not selectively
sequentially separable.
One of them is in addition countable and sequential.
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