#h8trsUnmoderated tagAll postsExplore CommunitiesTrending CommunitiesNewcomers' CommunitySteemit FeedbackSteemitCryptoAcademyআমার বাংলা ব্লগKorea • 한국 • KR • KOSteem POD TeamSteem AllianceSTEEM CN/中文WORLD OF XPILARAVLE 일상Comunidad LatinaTron Fan Club#h8trsTrendingHotNewPayoutsMutedstratus (33)in #h8trs • 7 years agoA lesson in Heyting algebra for h8trs in the Neighbourhood (mathematics)In topology and related areas of mathematics, a neighbourhood (or neighborhood) is one of the basic concepts in a…