👉 In mathematics, a bicolligation is an equivalence relation on a set X. This means that for any two elements x and y in X, if x ≠ y and x ∩ Y = {x}, then x ∼ y. The relationship between x and y is said to be "bicolateral" (or "bicolligative") if the element y is related to both x and x itself. For example, consider a set S = {a, b, c
