A rank one cohesive set (Q1332857)
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scientific article; zbMATH DE number 633657
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | A rank one cohesive set |
scientific article; zbMATH DE number 633657 |
Statements
A rank one cohesive set (English)
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5 September 1994
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The rank referred to in the title is Cantor-Bendixson rank -- the authors construct a \(\Pi^ 0_ 1\) class whose sole limit point (in the Cantor- space topology) is a cohesive set. This is accomplished via a \(\Delta^ 0_ 3\) argument.
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Cantor-Bendixson rank
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limit point
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Cantor-space topology
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cohesive set
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