Question #1033

Discrepancy in written answer on Review page VS. video explanation

Started by Alexandra · started 2020-05-01 01:16 · last activity 2020-07-07 03:49 · 2 replies

Hi! I understand why B is the correct answer here I was just trying to understand why A was an invalid argument in the written response on the review page, it says that the argument of A is invalid due to a subtle term shift. Which I still couldn't find why it was invalid every time I went through it. However in the video explanation she says the the argument is valid but it doesn't mirror the argument because it is a transitive argument not a contrapositive transitive argument. Which I completely understood. So the question is: Is the argument of A invalid like the written explanation and if so why because I didn't get that. Or is it valid but not equivalent like the video, if so that makes sense to me. Thanks!

Replies

  1. Motunrayo-Bamgbose-Martins · 2020-06-09 03:36

    I have the same question please!

  2. Brett-Lindsay · 2020-07-07 03:49

    I don't see a subtle term shift at all. ALL of the paintings in the Huang Collection will be put up for auction next week. Since the piantings to be auctioned next week are by a wide variety of artists, it follows that the paintings in the Huang Collection are by a wide variety of artists. In the second line, "the paintings to be auctioned next week" implies ALL of the paintings. Furthermore, ALL of the paintings from the Huang collection are being auctioned. Where is the subtle term shift?

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