A Closed Separable Subspace of βN Which is Not a Retract (Q4720377)
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scientific article; zbMATH DE number 3992397
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | A Closed Separable Subspace of βN Which is Not a Retract |
scientific article; zbMATH DE number 3992397 |
Statements
A Closed Separable Subspace of βN Which is Not a Retract (English)
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1987
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nonempty closed separable subspace of \(\beta \) N
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lifting
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ultrafilter
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Stone-Cech compactification of countable discrete space
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ZFC
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