Read Edit View history 空集合 kōngjíhé empty set Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 空集合 kōngjíhé empty set A set in mathematics that contains no elements, often represented by the symbol ϕ Edit Delete References Add reference synonym 空集合/空集合 → 零集合/零集合 Edit Delete
空集合 kōngjíhé empty set A set in mathematics that contains no elements, often represented by the symbol ϕ Edit Delete