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.
Subset of a Set Formula. Consider the subset of a set, X = set of every student in your school and Y = set of every student in your school. It is obvious that set of every student in your class is going to be in your school. So, every component of Y is also a component of X. We state that Y is a subset of X.