👉 In mathematics, "valiancy" is a concept used to describe a phenomenon where a mathematical object (usually a function or a set) has multiple interpretations. The term originates from French and means "uncertainty", referring to the fact that the same function may have different values depending on what we choose as our reference point. For example, if we consider the real numbers R with the standard topology, then the open interval (a, b) is defined by: 1. For a < b
