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\(\Pi^1_1\) sets of sets, hyperdegrees and related problems - MaRDI portal

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\(\Pi^1_1\) sets of sets, hyperdegrees and related problems (Q2560400)

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scientific article
Language Label Description Also known as
English
\(\Pi^1_1\) sets of sets, hyperdegrees and related problems
scientific article

    Statements

    title
    \(\Pi^1_1\) sets of sets, hyperdegrees and related problems (English)
    0 references
    author
    Yanyan Li
    0 references
    publication date
    1973
    0 references

    Identifiers

    Mathematics Subject Classification ID
    03D30
    0 references
    03D55
    0 references
    03E15
    0 references
    zbMATH DE Number
    3411022
    0 references
    OpenAlex ID
    W2030484414
    0 references
    DOI
    10.2969/JMSJ/02540609
    0 references
     
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