Mathwords: Least Upper Bound of a Set

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Least Upper Bound of a Set
LUB

The smallest of all upper bounds of a set of numbers. For example, the least upper bound of the interval (5, 7) is 7. The least upper bound of [5, 7] is also 7.

See also

Greatest lower bound, interval notation

this page updated 15-jul-23
Mathwords: Terms and Formulas from Algebra I to Calculus
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