👉 In mathematics, a preliminator is a function that is defined on the set of real numbers and has the property that for any two elements \(a\) and \(b\) in the domain of \(f\), if \(f(a) = f(b)\), then \(a = b\). For example, consider the function \(f(x) = x^2 - 1\) on the set of real numbers. If we set \(a = 3\) and \(b =
