# one-to-one

each element of set A pairs with at most one element of B.

in the linalg sense, a transformation characterized by a matrix \(A\) is a 1-1 iff the columns of A are independent

each element of set A pairs with at most one element of B.

in the linalg sense, a transformation characterized by a matrix \(A\) is a 1-1 iff the columns of A are independent