## directed set

<*theory*>

A set X is directed under some relation, <= (less than or equal), if it is non-empty and if for any two elements x and y there exists an element z such that x <= z and y <= z. I.e. all pairs have an upper bound.

Last updated: 1994-11-11

### Nearby terms:

Directed Oc ♦ **directed set** ♦ Direct Inward Dialing ♦ directional coupler

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