Minimal degrees which are Σ₂⁰ but not Δ₂⁰ (Q4433097)
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scientific article; zbMATH DE number 1998485
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Minimal degrees which are Σ₂⁰ but not Δ₂⁰ |
scientific article; zbMATH DE number 1998485 |
Statements
Minimal degrees which are Σ₂⁰ but not Δ₂⁰ (English)
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29 October 2003
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minimal degree
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recursively enumerable in \(0'\)
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