👉 In mathematics, a term that refers to a colorless or uncountable set of numbers is called a "metachromatic set." In other words, a set with no elements but which can be counted in any way. For example, the set of all even integers (0, 2, 4, 6, ...) is metachromatic because it has no odd elements. Metachromatic sets are important in combinatorial analysis and have applications in various fields such as number theory
