Which one of the following representatives could be the only representative who presents?

brannon on October 18, 2022

Explain please

I dont understand

Replies
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Emil-Kunkin on October 18, 2022

Hi,

Our second rule tells us that one of q or p must always present. That is, if q is out then p is in, and if p is out then q is in. So, at least one of those two must always be in. So, if there is only one presenter, it must be one of q or p.

AAA on February 2, 2023

Thank you, I just need a refresher between the difference

- If Johnson presents, then Quijada does not.

-If Quijada does not present, then Pesek does.

If the rule begins with a "IF NOT" Q then P this would indicate that one must always be present (Q or P) because it starts with negating a sufficient?

And if a rule states If J then NOT Q, one does not have to be always present, thus it is from having sufficient not be crossed out, is that correct?

Emil-Kunkin on February 5, 2023

I think so! I like to think about as follows for in/out games

If X then Not Y

This means that they cannot both be in, so either one or both of them must be out.

If not X then y.

This means that they cannot both be out, so at least one, and maybe both are in.