空集合 kōngjíhé empty set Definitions Defs Origin Strokes Stroke Words Sentences Sents 空集合 kōngjíhé empty set A set in mathematics that contains no elements, often represented by the symbol ϕ Cross-References Synonym 零集合 língjíhé
空集合 kōngjíhé empty set A set in mathematics that contains no elements, often represented by the symbol ϕ Cross-References Synonym 零集合 língjíhé
