👉 In mathematics, "gregge" is a mathematical concept that refers to the property of a function or a relation where for every pair of input values (x1, x2), there exists exactly one output value (y). This means that if we have two different inputs and we want to know what the output will be for each input, then for all possible pairs of inputs, there is only one unique output. The term "gregge" comes from Greek and it means "same" or