supremumMängden A = [0, 5] har supremum \sup A = 5.
Definition für supremum
: Given a subset ''X'of '''R''', the smallest real number that is ≥ every element of ''X''; : given a subset ''X'of a partially ordered set ''P', the least element ''y'of ''P'such that every element of ''X'is ≤ ''y''