EntityQ13222579· pop 20· linked from 311 articlesupper and lower boundsSign in to saveevery element of a partially ordered set A which is greater (resp. lower) than every element of a subset B included in AConnectionsinfimum and supremumEntitytotal orderEntitymathematicsEntityInternational Standard Book NumberEntitynatural numberEntityintegerEntityfunctionEntityreal numberEntityrational numberEntitydigital object identifierEntityinequalityEntityOCLC, Inc.EntitysubsetEntitydomain of a functionEntityelementEntitybig O notationEntitycodomainEntityAmerican Mathematical SocietyEntityorder theoryEntitySaunders Mac LaneEntityCategoriesMathematical terminologyOrder theoryReal analysis