Either Or - Can it be both?

Christina Walton

If you have a rule that says for example either P or L will be selected and you write the rule as /P->L and /L->P, could both L and P be selected?

hopefulling

Yes, having BOTH is a possibility. I look at it this way to remember:

• if there's a 'not' (/) at the end then NOT BOTH is possible [A -> /B], but
• if there's a 'positive' (not a not ;p) at the end, then BOTH is possible [/A -> B}.

I look to the 'end' to tell me whether it's inclusive or exclusive.

carolG_law

Yes. Unless the rule states that either P or L, but not both. P and L can both be selected.