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?
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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!
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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!
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BenMingov
· 2019-12-18 00:07
Sorry for the double post!
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