A collection of subsets of a given set, such that this collection contains the empty set, and the collection is closed under unions and complements (and thereby also under intersections and differences)
An algebraic structure consisting of a module of a commutative ring along with an additional binary operation that is bilinear
Algebra is a type of mathematics in which letters are used to represent possible quantities. a type of mathematics that uses letters and other signs to represent numbers and values (al-jabr ). algebra and algebraic structures Boolean algebra fundamental theorem of algebra linear algebra
A structure consisting of a set of elements together with one or more operations and rules specifying what expressions are equivalent