Reply To: Help with 52.1.16

May 2, 2017 at 9:16 am #3072
Mike Kim

Hi Rachel — those are very similar — the difference has to do with the orientation of the elements in the support vs the conclusion —

Oversimplifying down to the relevant issue, the original argument gives us

A -> B

B is false.

Thus, A must be false.

(A) gives that to us as well.

(E) gives us:

A -> B

A is false.

Thus B must be false.

Again, the original argument is more complicated than that (beliefs vs actuality etc.) but I hope that illustrates the differences between (A) and (E) — MK