Question #1845

Confused about M

Started by studying0 · started 2022-08-24 01:51 · last activity 2023-06-04 23:30 · 3 replies

How is M a floater? Why is it true that M does not have to be offered when L is offered? The rule that M --> L or S is confusing me because there is no S but there is L, so shouldn't there be M?

Replies

  1. Emil-Kunkin · 2022-08-26 01:17

    Hi Studying0, We know that if M -> L/S That does not mean that we must have M if we have L or S. It might be a good idea to review sufficient and necessary conditions.

  2. Cody-Nelson · 2023-05-31 22:00

    Isn't this restriction a contrapositive "If mathematics is offered, then either literature or sociology (but not both) is offered." Because of the "IF" as an indicator for a contrapositive and if you flip it, if literature is offered, then mathematics would be required to be offered no? I chose question C because that's the only one that made sense to me but I'm not entirely sure why it is correct.

  3. Emil-Kunkin · 2023-06-04 23:30

    Hi, the contrapositive of the rule in question would be that if neither L nor S (or if both) are offered, then math cannot be offered. Contrapositives mean reversing and negating. Not just flipping.

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