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bn:03355902n
Noun Concept
Categories: Mathematical logic hierarchies, Descriptive set theory
EN
Borel hierarchy
EN
In mathematical logic, the Borel hierarchy is a stratification of the Borel algebra generated by the open subsets of a Polish space; elements of this algebra are called Borel sets. Wikipedia
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Sources
EN
In mathematical logic, the Borel hierarchy is a stratification of the Borel algebra generated by the open subsets of a Polish space; elements of this algebra are called Borel sets. Wikipedia
IS A
hierarchy
HAS PART
Gδ set
Fσ set
FACET OF
σ-algebra
NAMED AFTER
Émile Borel
Wikipedia
EN
Borel hierarchy
Wikidata
EN
Borel hierarchy

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