Question

c) Define least oupper bound AER​

Answer 1

Answer:

In mathematics, the least-upper-bound property (sometimes called completeness or supremum property or l.u.b. property)[1] is a fundamental property of the real numbers. More generally, a partially ordered set X has the least-upper-bound property if every non-empty subset of X with an upper bound has a least upper bound (supremum) in X. Not every (partially) ordered set has the least upper bound property. For example, the set {\displaystyle \mathbb {Q} } \mathbb {Q} of all rational numbers with its natural order does not have the least upper bound property

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Answer 2

Answer:

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