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bn:03824806n
Noun Concept
Categories: Descriptive set theory, General topology, Articles with short description
EN
pointclass  boldface  Boldface hierarchy  boldface pointclass  lightface
EN
In the mathematical field of descriptive set theory, a pointclass is a collection of sets of points, where a point is ordinarily understood to be an element of some perfect Polish space. Wikipedia
Definitions
Sources
EN
In the mathematical field of descriptive set theory, a pointclass is a collection of sets of points, where a point is ordinarily understood to be an element of some perfect Polish space. Wikipedia
Descriptive set theory concept Wikidata
A collection of sets of points (ordinarily understood to be elements of some perfect Polish space), characterized by some sort of definability property. Wiktionary
Wikipedia
EN
pointclass
Wikidata
EN
pointclass
Wiktionary
EN
pointclass
Wikipedia Redirections
EN
boldface (mathematics), Boldface hierarchy, boldface pointclass, lightface, Lightface hierarchy, lightface pointclass, pointclasses

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