Reducibility orderings: Theories, definability and automorphisms (Q3956925)
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scientific article
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Reducibility orderings: Theories, definability and automorphisms |
scientific article |
Statements
Reducibility orderings: Theories, definability and automorphisms (English)
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1980
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coding symmetric irreflexive binary relations
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Turing degrees
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second order arithmetic
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r-degrees of arithmetic and hyperarithmetic sets
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