created sense approved 闭子集/閉子集 · bìzǐjí · closed subset — "Initial import from upstream dictionary"
闭子集 / 閉子集
bìzǐjí
closed subset
(math.) closed subset
闭 (literal) → 闭/閉 · bì · to close 子集 (literal) → 子集 · zǐjí · subset
Changed: simplified, traditional, gloss, definition, pinyin, variant pinyin, variants, separable parts, decomposition