What are the kinds of sets in algebra?

Answer 1

The algebra of sets develops and describes the basic properties and laws of sets, the set-theoretic operations of union, intersection, and complementation and the relations of set equality (mathematics) and set inclusion. It also provides systematic procedures for evaluating expressions, and performing calculations, involving these operations and relations.

Answer 2

There are the integers you're given when you have to graph them. Like X and Y. It's been years since I've had algebra..