👉 In mathematics, a parenical is a mathematical object that is both a set and a topological space. It is defined as a collection of points in a plane, together with a notion of distance between these points. A parenical can be thought of as a type of topology on the real line, where each point has a unique neighborhood (a subset of the real line) that contains it. Parencicals are used extensively in mathematics and computer science to study topological properties of
