necessary and sufficient conditions
butârhâ-ye bâyesté o basandé
Fr.: conditions nécessaire et suffisante
If event A must occur for event B to occur, then it is said that A is → necessary for B. If event A may cause B but there could be some other cause as well, then it is said that A is sufficient to cause B. See also → if and only if (iff).
→ necessary; → and; → sufficient; → condition.
1) Adequate for the purpose; enough.
M.E., from O.Fr. sufficient, from L. sufficiens, pr.p. of sufficere "supply, suffice," from sub "up to," → sub-, + root of facere "to make," → fact.
Basandé "sufficient, complete, worthy," from *basidan, from bas "many, much," → multi-.