👉 In mathematics, a coincidence relation is a binary relation on a set of objects such that for every pair of distinct elements in the set, there exists at least one element that belongs to both pairs. In other words, if two elements x and y are co-incident, then their corresponding sets x and y must be equal. For example, consider the set A of all even integers {2, 4, 6, ...}. The relation "x is even" coincides with
