Bounded set - Wikipedia
https://en.wikipedia.org/wiki/Bounded_set"Bounded" and "boundary" are distinct concepts; for the latter see boundary (topology). A circle in isolation is a boundaryless bounded set, while the half plane is unbounded yet has a boundary.In mathematical analysis and related areas of mathematics, a setis called bounded if it is, in a certain sense, of finite size. Conversely, a set which is not …
Max, Min, Sup, Inf - Department of Mathematics
https://www.math.purdue.edu/academic/files/courses/2007fall/MA3…Definition 1. Let S be a set of real numbers. An upper bound for S is a number B such that x ≤ B for all x ∈ S. The supremum, if it exists, (“sup”, “LUB,” “least upper bound”) of S is the smallest 81. 82 6. MAX, MIN, SUP, INF upper bound for S.
Upper and lower bounds - Wikipedia
https://en.wikipedia.org/wiki/Upper_and_lower_boundsIn mathematics, particularly in order theory, an upper bound or majorant of a subset S of some preordered set (K, ≤) is an element of K which is greater than or equal to every element of S. Dually, a lower bound or minorant of S is defined to be an element of K which is less than or equal to every element of S. A set with an upper (respectively, lower) bound is said to be bounded from above or majo…