Subscription pricing
Hi 7Sages,
I have a confusion in representing "if then must" conditions.
Suppose there is a sentence given as :
If N is not selected then T must be selected .
So, is the representation like this?
not N -> T
contrapositive is
not T -> N
If here, N is satisfied then does the rule drops away and does T becomes a floater ?
Since there is a 'must' keyword involved..I am confused.
Please clarify this.
Thank you.
0
4 comments
Thanks everyone for clarifying the doubt. I understood that 'must' and 'can' could be substituted with 'is' and the same rules follows. :)
Looks good. You could substitute “is” for “must be” if that is useful.
Yes you are correct.
/N->T
/T->N
The "if" signals a sufficient condition and the must signals a necessary condition. Your application of satisfying N in the contrapositive example is spot on too. By satisfying the necessary condition, you make the sufficient (T) a floater.
Everything you've written looks correct to me! And, yes, assuming there are no other rules bearing on "T," if "N" is satisfied, "T" becomes a floater.