If a child is to develop healthy bones, the child's diet must include sufficient calcium. It therefore follows that t...
shafieiavaFebruary 9, 2020
Diagraming
Can someone explain how they diagramed the stimulus? My understanding is that the stimulus just reverses the premise to make the conclusion. But the correct answer choice, answer choice B, in my reading of it doesn't seem to do this. Can someone clarify the correct diagraming here? Thanks in advance.
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The passage can be diagrammed as follows: First sentence: HB -> SC Second sentence: not HB -> not SC Therefore, the flaw is simply negating the original S->N statement.
Answer choice (B) can be diagrammed as follows: First sentence: TG -> RAF Second sentence: not TG -> not RAF Again, we see the flaw of simply negating the original S->N statement. Since this is the same flaw as is seen in the passage, (B) is correct.
Does that make sense? Please let us know if you have any other questions!
MrLawJuly 11, 2020
Why did you diagram it as not TG -> not RAF vice not RAF -> not TG?
shunheJuly 23, 2020
Hi @Alexander-Blankers,
Thanks for the question! So let’s take a look at what (B) is saying. A cake much contain the right amount of flour in order to taste good. Remember that words like “must,” “need,” etc. generally introduce the necessary condition. And that makes sense, what does this first sentence mean? It means that if a cake tastes good, then it contains the right amount of flour. Because a cake has to contain the right amount of flour to taste good! So we diagram this
TG —> RAF
Now for the second sentence. We’re told that cakes that don’t taste good don’t contain the right amount of flour. Well, how can we rephrase this in if-then language? This is basically saying that if a cake doesn’t taste good, then it doesn’t contain the right amount of flour. So we can diagram this as
~TG —> ~RAF
Hope this helps! Feel free to ask any other questions that you might have.
