For example:
if N or M is selected, S is out.
Since or is in the sufficient condition, N and M are INDEPENDENTLY sufficient for S. So does that mean we can have just N selected, just M selected or both selected?
Also another example:
If S is out, N or M is selected.
Since or is in the necessary condition, N and M and JOINTLY necessary for S. What does that mean? Does that mean we need N and M BOTH to be selected? We can't have just N or just M selected? I'm so confused about this concept when applying to logic games... Please help, thanks!
@.janson35 Thanks for your reply! So for /S --> N or M, even though the or is jointly necessary for /S, we can have just N in or M in? What does jointly necessary refer to in this case because I interpreted it as N AND M have to be both in. Thanks again!