Read Edit View history 空集 kōngjí empty set Origin Definitions Defs Strokes Stroke Words Sentences Sents 空集 kōngjí empty set noun empty set (set theory) Frequency Written text 0.147 per million Sources Definitions CC-CEDICT Frequency data BCC Corpus (BLCU)
空集 kōngjí empty set noun empty set (set theory) Frequency Written text 0.147 per million Sources Definitions CC-CEDICT Frequency data BCC Corpus (BLCU)