Quotient space (linear algebra)
In linear algebra, the quotient space of a vector space V by a subspace N, also said V/N, is the set of vectors v and w of V such that v-w is in N. We can also say that v added by any vector of N is in the class of v, also called [v]. The set of v and vectors in V such that v plus all those vectors are in N are written V/N (V/N = {v + N | v ∈ V }).