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闭子集
閉子集
bìzǐjí
1. closed subset (math)

Character Breakdown

闭
bì
to shut, to close; to obstruct, to block
HSK 5 6 丶
子
zi
son, child; seed, egg; fruit; small thing
HSK 1 3 丶
集
jí
to gather, to collect; set, collection
HSK 5 12 丶

Metadata

Category
Chinese