algebra

Elementary algebra: A system for representing and manipulating unknown quantities (variables) in equations.

Also the rule of false position, with dyuers examples not only vulgar, but some appertaynyng to the rule of Algeber.

Let us conceive, then, of an Algebra in which the symbols x, y, z, &c. admit indifferently of the values 0 and 1, and of these values alone.

Abstract algebra: A broad field of study in modern mathematics (often mentioned alongside analysis) loosely characterized by its concern for abstraction and symmetry, dealing with the behavior, classification, and application of a large cla

Any of several objects of study in Algebra

Any of several objects of study in Algebra

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).