👉 In mathematics, a "concursion" is an element or object that appears in the form of a limit point. Concurs are crucial for understanding topological properties like connectedness and compactness, as they provide a way to distinguish between different subsets of a space. For instance, let us consider the set {a, b, c} with the topology defined by considering open intervals [a, b] (where a < b) and closed intervals [b, c]. The set {a