Question #1014

Positive Argument

Started by HannahB · started 2022-11-06 03:21 · last activity 2023-03-18 00:17 · 3 replies

I watched the explanation video and I chose B since it has the correct the argument structure, but that answer is incorrect because it was labeled as a positive argument? There is no explanation as to what a positive argument is or how it is defined.

Replies

Emil-Kunkin · 2022-11-06 17:27

Hi, I think by positive argument they mean that it is the opposite of a contrapositive. The initial argument is simply stating an If Then statement, and then tells us that since that conditional is true, the contrapositive is true. B gives us a conditional, and then notes that since the sufficient is true, the necessary is true. I think that would be called a positive argument, as in its not using the contrapositive, but it is an odd way to put it. I think I would say it's not b since the original argument employed the contrapositive but B does not.
risisanz · 2023-03-14 00:52

Hi, I don't understand why NFTB would be used as the sufficient condition when in the lessons we were taught that "all" introduces a sufficient condition so wouldn't NFTB be the necessary condition? I would appreciate if you could clarify this for me. Thank you
Emil-Kunkin · 2023-03-18 00:17

Hi,, good question. Here it depends on what the "all" is doing. The first statement means that all ntbfs have reflexes. The following two statements mean the same thing: All babies are cute. Babies are all cute. The exact placement of the all is not what matters, what matters is which term it applies to.