👉 In mathematics, a hornless set is a subset of a topological space that has no finite intersection with any closed set. A hornless set can be defined as a set that does not have a finite subcover in the sense that every point in the set can be reached from every other point by using only finitely many directed edges (i.e., paths) and one vertex. For example, consider the set of all real numbers with rational coefficients. This set has no finite intersection with
