Weak density and nondensity among transfinite levels of the Ershov hierarchy (Q1981983)
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scientific article; zbMATH DE number 7391956
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Weak density and nondensity among transfinite levels of the Ershov hierarchy |
scientific article; zbMATH DE number 7391956 |
Statements
Weak density and nondensity among transfinite levels of the Ershov hierarchy (English)
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7 September 2021
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\((\omega+1)\)-r.e. degrees
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density
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Ershov hierarchy
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nondensity
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\(n\)-r.e. degrees
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