Question #1663

Question 8

Started by sakshi_h · started 2022-07-28 16:55 · last activity 2022-07-29 22:35 · 2 replies

Hello, If Norton is 5, isn't Lalitha supposed to be 3 according to the rules? Thanks :)

Replies

  1. s.adler · 2022-07-29 03:35

    Exactly my thoughts!

  2. Emil-Kunkin · 2022-07-29 22:35

    Hi Sakshi, Let's take a look at the L/N rule. We are told that L is 3 only if N is 5. Only introduces a necessary condition, not a sufficient condition- so we would actually diagram this as follows. If L3 -> N5 If N not 5 -> L not 3 In a more common sense analogy, I could say that I will go to the park only if it does not rain. In this case, we know if it rains I will not go to the park, and if I went to the park then it must not have rained. However, we know nothing about what must happen if it does not rain. I could go, but I do not have to.

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