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bn:03110054n
Noun Concept
EN
difference hierarchy
EN
In set theory, a branch of mathematics, the difference hierarchy over a pointclass is a hierarchy of larger pointclasses generated by taking differences of sets. Wikipedia
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Sources
EN
In set theory, a branch of mathematics, the difference hierarchy over a pointclass is a hierarchy of larger pointclasses generated by taking differences of sets. Wikipedia
Wikipedia
EN
difference hierarchy
Wikidata
EN
Difference hierarchy

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