Vector Space, Topological Space, Mathematics, Math, Linear Algebra.
Associativity: x (yA) = (xy)A Matrices as Vectors: So, if a set of matrices follow these rules, then we can conclude that they form a vector space, and the elements (matrices) of that set are vectors. We can add, subtract, multiply two matrices which satisfy (1), (2), (3), (4), (5) [null matrix