闭子集 bì zǐ jí

closed subset (math.)

Word data

HSK Not in HSK
Frequency Unknown

Definitions

  1. 1. closed subset (math.)

Characters

Character Meaning
闭 bì HSK 5
to close; to shut; to stop up
子 zǐ HSK 1
(noun suffix); son; child
集 jí HSK 5
to collect; to gather; collected works