projective set
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in descriptive set theory, a subset of a Polish space constructible by taking complements and projections of an analytic set
Connections
International Standard Book Number
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natural number
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number line
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complement
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ordinal number
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open set
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Springer Science+Business Media
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uncountable set
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closed set
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recursive set
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Borel set
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projection
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clopen set
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Polish space
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descriptive set theory
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recursively enumerable set
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first uncountable ordinal
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Baire space
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Fσ set
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Cantor space
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