Other crossword clues for answer "NULLSET"NULLSETMathematical voidGroup with no members, in mathMathematical void symbolized by { }It has no members, in mathEmpty math classIntersection of perfect squares and prime numbersIt has zero measure, in mathThere's nothing to itIt's got nothingMathematical collection with nothing in it{ }, to mathematiciansThere's nothing to it, in math