{"version":"1.0","type":"link","title":"Clopen set - Newikis","description":"In topology, a clopen set (a portmanteau of closed-open set) in a topological space is a set which is both open and closed. That this is possible may seem counterintuitive, as the common meanings of open and closed are antonyms, but their mathematical definitions are not mutually exclusive. A set…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400}