Diagramming assistance
Started by
awashing
· started 2016-11-27 21:33
· last activity 2019-12-24 22:34
· 2 replies
I've diagrammed this statement as PS - >AM or R. The contrapositive of the statement being Not AM and R - >not PS. I chose A rather than E because the statement seemed to be presuming Not AM or R, which goes against the contrapositive that I diagrammed. E makes sense reading it again but I would appreciate assistance in thinking through that option.
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Mehran
· 2016-12-01 21:55
@awashing let's break down the stimulus.
"If the play were successful, it would be adapted as a movie or revived at the Decade Festival."
PR: S ==> AM or RDF
not AM & not RDF ==> not S
"But it is not successful."
P: "not S"
"We must, regrettably, conclude that it will neither become a movie nor be revived at the Decade Festival."
C: "not AM & not RDF"
The flaw here is that the author is taking the non-existence of the sufficient condition to conclude the non-existence of the necessary condition.
But we know that you DON'T JUST NEGATE!
Stated another way, the author is mistaking sufficient for necessary as follows:
PR: AM or RDF ==> S
not S ==> not AM & not RDF
P: not S
C: not AM & not RDF
As such, (E) would be the correct answer choice, i.e. there could be alternative sufficient conditions other than S that lead to AM or RDF.
Hope that helps! Please let us know if you have any other questions.
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Mark-Livecchi
· 2019-12-24 22:34
I was with MEhran until the very last sentence. Could you please give an example of an alternative sufficient condition or am I Overthinking it. I narrowed it down to A vs E.
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