Empty intervals in the enumeration degrees (Q764276)
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scientific article; zbMATH DE number 6014281
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Empty intervals in the enumeration degrees |
scientific article; zbMATH DE number 6014281 |
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Empty intervals in the enumeration degrees (English)
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13 March 2012
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We say \(a\) is a strong minimal cover for \(b\) if the degrees strictly below \(a\) are precisely those below and including \(b\). In this interesting paper it is proved that there exists a \((\Pi_2^0)\) e-degree which is a strong minimal cover.
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enumeration degree
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empty interval
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enumeration reducibility
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strong minimal cover
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positive reducibility
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