Help needed on the diagramming of the original question

Started by samlhoover · started 2019-12-16 21:45 · last activity 2019-12-18 00:07 · 3 replies

Why would the conclusion of the original question be /MSQ --> /ES, and not /ES-->/MSQ? How do you know for sure?

Replies

  1. BenMingov · 2019-12-18 00:07

    Hi Samlhoover, thanks for the question! The passage can be diagrammed as follows: Meet sales quota - > Experienced salesperson NOT meet sales quota - > NOT experienced salesperson (Note how the word "must" is used to introduce the necessary condition) In essence, this argument is doing the following: Reasoning: A - > B Conclusion: NOT A - > NOT B This is not a valid conclusion from the reasoning. The only thing other than A - > B that we can conclude from A - > B is NOT B - > NOT A (the contrapositive). So let's look for an answer choice that makes a similar error of just negating the conditional statement without reversing it as well. Answer choice B does exactly that. Reasoning: Take class - > Music lover Conclusion: NOT take class - > NOT music lover I hope this helps. Please let me know if you have any other questions!
  2. BenMingov · 2019-12-18 00:07

    Hi Samlhoover, thanks for the question! The passage can be diagrammed as follows: Meet sales quota - > Experienced salesperson NOT meet sales quota - > NOT experienced salesperson (Note how the word "must" is used to introduce the necessary condition) In essence, this argument is doing the following: Reasoning: A - > B Conclusion: NOT A - > NOT B This is not a valid conclusion from the reasoning. The only thing other than A - > B that we can conclude from A - > B is NOT B - > NOT A (the contrapositive). So let's look for an answer choice that makes a similar error of just negating the conditional statement without reversing it as well. Answer choice B does exactly that. Reasoning: Take class - > Music lover Conclusion: NOT take class - > NOT music lover I hope this helps. Please let me know if you have any other questions!
  3. BenMingov · 2019-12-18 00:07

    Sorry for the double post!

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