LSAT and Law School Admissions Forum

Get expert LSAT preparation and law school admissions advice from PowerScore Test Preparation.

 Jkjones3789
  • Posts: 89
  • Joined: Mar 12, 2014
|
#17217
I am having a bit of trouble identifying the flaw is this flaw in the reasoning question. Could you please assist me with it. Thank You.
 Lucas Moreau
PowerScore Staff
  • PowerScore Staff
  • Posts: 216
  • Joined: Dec 13, 2012
|
#17222
Hello, Jkjones,

This is indeed a flaw of conditional reasoning. The trick there is that all flaws of conditional reasoning essentially boil down to the same mistake - confusing the sufficient condition with the necessary condition. There's lots of ways to phrase that, but that's what happens for both Mistaken Negations and Mistaken Reversals.

Here, the first sentence may be rewritten:

If there is a moral order in the universe such that bad is always eventually punished and good rewarded, then human souls are immortal. (The moral order depends on the immortality of souls - they're necessary.)

The last sentence is a Mistaken Reversal:

If human souls are immortal, then the bad will be punished.

Answer choice A describes, in very roundabout language, that a flaw of conditional reasoning is present. Which it is. :)

Something possibly crucial: the "i.e.," in the first sentence. You can think of "i.e.," as "in essence", meaning, this is the heart of the argument or the perfect emblematic example. By contrast, "e.g." can be thought of as "example given", which could be just one possible example of many and is not necessarily an accurate general descriptor. Just in case! :-D

Hope that helps,
Lucas Moreau
 Johnclem
  • Posts: 122
  • Joined: Dec 31, 2015
|
#28408
Hi,
Is C wrong because it mixes up authors conclusion with premises ?


Thanks
John
 Shannon Parker
PowerScore Staff
  • PowerScore Staff
  • Posts: 147
  • Joined: Jun 08, 2016
|
#28449
Hi John,

Answer choice C in this question reverses the author's position. The author claims that a moral order depends on human souls being immortal, and from that concludes that if human souls are immortal that implies that there is a moral order.

While answer choice C is an example of the same type of mistaken causal reasoning, it does not describe it. Answer choice A is the only answer choice that describes how the author mistakenly switches the functions of the necessary and sufficient conditions.

Here the author takes the fact that human souls are necessary for there to be a moral order, as sufficient to produce that moral order.

Hope this helps.

~Shannon
 jcough346
  • Posts: 35
  • Joined: Aug 05, 2016
|
#31557
Is the first portion in the conclusion (before the comma), "but however...is represented," just a clunky word jumble to distract from the actual conclusion that follows the comma ("If humans...be punished")?
 Adam Tyson
PowerScore Staff
  • PowerScore Staff
  • Posts: 5153
  • Joined: Apr 14, 2011
|
#31565
I'd say it's more of a clunky conclusion indicator than a distraction, jcough. I think it tells us that the conclusion is to follow. It's like "regardless" or "either way". Those both tend to indicate that a conclusion is to come next. But whether it's an indicator or merely a distraction, it surely isn't the conclusion of the argument or a part thereof. (See what I did there? ;-) )
 MikeJones
  • Posts: 31
  • Joined: Oct 02, 2017
|
#40504
Adam Tyson wrote:I'd say it's more of a clunky conclusion indicator than a distraction, jcough. I think it tells us that the conclusion is to follow. It's like "regardless" or "either way". Those both tend to indicate that a conclusion is to come next. But whether it's an indicator or merely a distraction, it surely isn't the conclusion of the argument or a part thereof. (See what I did there? ;-) )
So we are to supposed to infer that "the bad will be punished" constitutes moral order? According to the stimulus, moral order also includes the good being rewarded.
 Francis O'Rourke
PowerScore Staff
  • PowerScore Staff
  • Posts: 471
  • Joined: Mar 10, 2017
|
#40706
The first sentence gives us a definition or a consequence of a moral order in the universe. The dash and "i.e." indicate that what follows is an explanation, a definition, or a clarification of the idea that was just introduced.

This sentence tells us that a moral order in the universe means that the bad will be punished and the good will be rewarded. Both will happen if a moral order in the universe exists. The argument's conclusion picks out only one of these two consequences. This makes no difference in terms of the validity of the argument. Whether the essayist concluded one or both occur if souls are immortal, the essayist still commits the Mistaken Reversal.

Let me know if this helps.

Get the most out of your LSAT Prep Plus subscription.

Analyze and track your performance with our Testing and Analytics Package.