Some road type classifications are influenced by city size, traffic density, and regional conventions. For example, in a very large city a primary street may have three or more lanes in each direction on a divided road. While in a town of dirt roads, the only paved single lane street could be a primary street.
subset - a set whose members are members of another set; a set contained within another set. set - (mathematics) an abstract collection of numbers or symbols; the set of prime numbers is infinite. Translations. podmnoÅ¾ina.
Subsets of a given Set. If a set contains ânâ elements, then the number of subsets of the set is 2\(^{2}\). If a set contains ânâ elements, then the number of proper subsets of the set is 2\(^{n}\) - 1. In general, number of proper subsets of a given set = 2\(^{m}\) - 1, where m is the number of elements. 1.