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https://www.veritasprep.com/blog/2016/02/circular-reasoning-gmat-cr/

Above is a link to one of your articles . I am specifically refering to the below question.

Anatomical bilateral symmetry is a common trait. It follows, therefore, that it confers survival advantages on organisms. After all, if bilateral symmetry did not confer such advantages, it would not be common.

You have mentioned that the reasoning in the above argument is flawed. But i disagree.

I think it is a conditional statement. Let me rearrange the argument.

Premise : After all, if bilateral symmetry did not confer such advantages, it would not be common. ( If not A , then not B. This implies that " if B , then A' statement must also be true)
Premise : Anatomical bilateral symmetry is a common trait. ( B happens )
Conclusion : It follows, therefore, that it confers survival advantages on organisms. ( Therefore A must happens)

I would like to understand what makes my understanding wrong ?
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https://www.veritasprep.com/blog/2016/02/circular-reasoning-gmat-cr/

Above is a link to one of your articles . I am specifically refering to the below question.

Anatomical bilateral symmetry is a common trait. It follows, therefore, that it confers survival advantages on organisms. After all, if bilateral symmetry did not confer such advantages, it would not be common.

You have mentioned that the reasoning in the above argument is flawed. But i disagree.

I think it is a conditional statement. Let me rearrange the argument.

Premise : After all, if bilateral symmetry did not confer such advantages, it would not be common. ( If not A , then not B. This implies that " if B , then A' statement must also be true)
Premise : Anatomical bilateral symmetry is a common trait. ( B happens )
Conclusion : It follows, therefore, that it confers survival advantages on organisms. ( Therefore A must happens)

I would like to understand what makes my understanding wrong ?


Abhishekrao12

Circular reasoning is when you assume the conclusion to be true and then go on to prove that the conclusion is indeed true.

Look at a simpler version of this:

If you were a good man, you would have done what I said.
Since you did not do what I said, you are not a good man.

Did I say anything that proved my point? I just said that a good man would have done what I said - the thing I wanted to establish in my conclusion. I didn't add any value. Would you say I made a strong argument?
I needed to give reasons for a strong argument such as what I asked you do was be fair. Fairness is a necessary characteristic to be good etc. When your premise is nothing but a restatement of your conclusion, it is circular reasoning. When you start by establishing your conclusion as a premise and then concluding what you wanted to, it is circular reasoning.
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Can you help on this?- Difference between option A and D
https://gmatclub.com/forum/lawyer-this- ... l#p2516743
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Gmat410
Can you help on this?- Difference between option A and D
https://gmatclub.com/forum/lawyer-this- ... l#p2516743

I am not an expert, but here is my take on this question -

Prompt says - Witness could not recognize both the parties -> exclude the testimony.

A) witness claims to recognize both parties -> include testimony. This is a mistaken negation and does not have to be true.

D) Include testimony (Sufficient Condition) -> Only if witness can recognize both parties (Necessary Condition). this is contrapositive and is true.

Hence, D is the correct assumption.
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Gmat410
Can you help on this?- Difference between option A and D
https://gmatclub.com/forum/lawyer-this- ... l#p2516743

There you go Gmat410:
https://gmatclub.com/forum/lawyer-this- ... l#p2525441
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VeritasKarishma

I have tagged you with a query on the below question. Can you please leave a response when you get a chance?
https://gmatclub.com/forum/the-traditio ... l#p2526838
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https://gmatclub.com/forum/the-united-s ... 02079.html

Conclusion : the government's calculation methods must be altered in order to provide statistics that measure true poverty.

Premise : The United States government uses only a household's cash income before taxes to determine whether that household falls below the poverty line in a given year; capital gains, non-cash government benefits, and tax credits are not included.

By saying that ' The government’s calculation method also erroneously counts those who do not earn income in a given year but who have substantial assets on which to live during that year ' , E is pointing out to one more flaw in the method of evaluating people who fall below poverty line. By doing so, isnt E strengthening the premise and in turn strengthening the conclusion ?
Can u please explain why E is not a strengthener ?

I agree that C is a strengthens the argument.

I am not able to understand why exactly C is better than E.
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VeritasKarishma

I have tagged you with a query on the below question. Can you please leave a response when you get a chance?
https://gmatclub.com/forum/the-traditio ... l#p2526838

Hey Debo1988:
https://gmatclub.com/forum/the-traditio ... l#p2529111
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vasuca10
VeritasKarishma mam please help for this CR Question
https://gmatclub.com/forum/in-the-1960s ... l#p2527661

I see Hailey has already given the explanation there so I hope it is all clear now.
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https://gmatclub.com/forum/the-united-states-government-uses-only-a-household-s-cash-102079.html

Conclusion : the government's calculation methods must be altered in order to provide statistics that measure true poverty.

Premise : The United States government uses only a household's cash income before taxes to determine whether that household falls below the poverty line in a given year; capital gains, non-cash government benefits, and tax credits are not included.

By saying that ' The government’s calculation method also erroneously counts those who do not earn income in a given year but who have substantial assets on which to live during that year ' , E is pointing out to one more flaw in the method of evaluating people who fall below poverty line. By doing so, isnt E strengthening the premise and in turn strengthening the conclusion ?
Can u please explain why E is not a strengthener ?

I agree that C is a strengthens the argument.

I am not able to understand why exactly C is better than E.

Abhishekrao12 - Check this:
https://gmatclub.com/forum/the-united-s ... l#p2529131
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VeritasKarishma
vasuca10

I see Hailey has already given the explanation there so I hope it is all clear now.


Yes Mam, Crystal Clear now :)
Thank you so much for explaining my other doubt too yesterday :)
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