least upper bound

American  

noun

Mathematics.

1. an upper bound that is less than or equal to all the upper bounds of a particular set. 3 is the least upper bound of the set consisting of 1, 2, 3. lub

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Example Sentences

One way of formalizing the idea is the following statement: Every nonempty subset of the real numbers that has an upper bound has a least upper bound.

From Scientific American

We also talked about the relationship between the Intermediate Value Theorem and the least upper bound property, which you can read about here.

From Scientific American