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Definition of Pointclass
1. Noun. (mathematics set theory) A collection of sets of points (ordinarily understood to be elements of some perfect Polish space), characterized by some sort of definability property. ¹
¹ Source: wiktionary.com
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1. Noun. (mathematics set theory) A collection of sets of points (ordinarily understood to be elements of some perfect Polish space), characterized by some sort of definability property. ¹
¹ Source: wiktionary.com