👉 In mathematics, a līards (plural "liard") is a type of algebraic structure that consists of two sets, A and B, such that every element in A can be written as an infinite product of elements in B. The set B is called the factor set and the elements in A are called the factors or terms. For example, consider the set A = {1, 2, 3} and B = {a, b}. Then, every element in A
