👉 In mathematics, a "semicupe" is a binary operation on a set X. It consists of two functions f and g such that for all x in X: 1) f(x) = 0 if and only if x = y for some y in Y (the domain of f). 2) g(y) = 0 if and only if x = z for some z in Z (the range of g). The operation semicupe is often used to define a new binary