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Necessary and Sufficient Assumption versus Justify questions

Posted: Sat Apr 20, 2013 11:55 pm
by Josh4737
Hey everyone,
I'm currently reading the Manhattan LR book. Earlier this I read the LR Bible. The concept of necessary and sufficient assumption is a little tricky for me. Are sufficient assumptions and justify questions the same thing? In the Bible they say adaption questions can be negated but I find that sufficient assumptions cannot, just like justify questions. Also, both sufficient and justify can add the answer plus extraneous information yet necessary questions can not.

Re: Necessary and Sufficient Assumption versus Justify questions

Posted: Sun Apr 21, 2013 12:32 am
by CardozoLaw09
Josh4737 wrote: Are sufficient assumptions and justify questions the same thing?

Yes
Josh4737 wrote:In the Bible they say adaption assumption? questions can be negated but I find that sufficient assumptions cannot

This is true, a necessary assumption question can be negated to verify if the answer is correct - if the negated version undermines the conclusion then that A/C is most likely your answer. However this technique does not apply for sufficient assumption questions.

Re: Necessary and Sufficient Assumption versus Justify questions

Posted: Sun Apr 21, 2013 1:05 am
by Josh4737
Thank you very much for the clarification!

Re: Necessary and Sufficient Assumption versus Justify questions

Posted: Sun Apr 21, 2013 12:29 pm
by LSAT Blog
CardozoLaw09 wrote:
Josh4737 wrote: Are sufficient assumptions and justify questions the same thing?

Yes
Josh4737 wrote:In the Bible they say adaption assumption? questions can be negated but I find that sufficient assumptions cannot

This is true, a necessary assumption question can be negated to verify if the answer is correct - if the negated version undermines the conclusion then that A/C is most likely your answer. However this technique does not apply for sufficient assumption questions.


+1

This is the reason:

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