## upper bound

An upper bound of two elements x and y under some relation <= is an element z such that x <= z and y <= z.

("<=" is written in LaTeX as \sqsubseteq).

See also least upper bound.

Last updated: 1995-02-15

### Nearby terms:

UPMAIL Tricia Prolog ♦ **upper bound** ♦ Upper Layer Protocol ♦ upper memory block

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