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Negation in CR

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arbre
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Negation in CR [#permalink] New post   11 May 2022, 22:28
Hello!👋



If Mike happens to have a positive opinion of a movie, then Chris wants to see it.



To negate it



It should be if Mike happens to have a positive opinion of a movie, then Chris absolutely does not want to see it or if Mike doesn’t happens to have a positive opinion of a movie, then Chris absolutely does not want to see it.



Which one is correct. Besides what is the logic or grammar behind it ?



Thanks a lot in advance! :)
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Re: Negation in CR [#permalink] New post   11 May 2022, 22:42
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arbre wrote:
Hello!👋

If Mike happens to have a positive opinion of a movie, then Chris wants to see it.

To negate it

It should be if Mike happens to have a positive opinion of a movie, then Chris absolutely does not want to see it or if Mike doesn’t happens to have a positive opinion of a movie, then Chris absolutely does not want to see it.

Which one is correct. Besides what is the logic or grammar behind it ?

Thanks a lot in advance! :)

Neither one is quite correct.

The basic meaning of the original statement is that if x is true, then y is necessarily true.

So, the negation is, if x is true, it not necessarily the case that y is true.

So, the negation is the following:

If Mike happens to have a positive opinion of a movie, it is not necessarily the case that Chris wants to see it.
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Negation in CR [#permalink] New post   12 May 2022, 00:23
MartyTargetTestPrep wrote:
arbre wrote:
Hello!👋



So, the negation is the following:

If Mike happens to have a positive opinion of a movie, it is not necessarily the case that Chris wants to see it.


Hey! thanks again! :)

So there is no answer choice for this one (please see in the attached file) because even if we negate D , the original assumption could still be true ?


So, the negation is, if x is true, it not necessarily the case that y is true.

So, the negation is the following:

If Mike happens to have a positive opinion of a movie, it is not necessarily the case that Chris wants to see it.






Hey! thanks again! :)

So there is no answer choice for this one (please see in the attached file) because even if we negate D , the original assumption could still be true ?
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Re: Negation in CR [#permalink] New post   12 May 2022, 05:52
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arbre wrote:
MartyTargetTestPrep wrote:
arbre wrote:
Hello!👋



So, the negation is the following:

If Mike happens to have a positive opinion of a movie, it is not necessarily the case that Chris wants to see it.


Hey! thanks again! :)

So there is no answer choice for this one (please see in the attached file) because even if we negate D , the original assumption could still be true ?


So, the negation is, if x is true, it not necessarily the case that y is true.

So, the negation is the following:

If Mike happens to have a positive opinion of a movie, it is not necessarily the case that Chris wants to see it.






Hey! thanks again! :)

So there is no answer choice for this one (please see in the attached file) because even if we negate D , the original assumption could still be true ?

If the negated version I provided above is true, then it is not the case that "we can conclude that Chris must now want to see this movie." After all, if it is not necessarily the case that Chris wants to see a movie that Mike happens to have a positive opinion of, then it does not make sense to conclude that Chris wants to see this movie.

So, the negated version wrecks the argument, and (D) is the correct answer.
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Negation in CR [#permalink] New post   Updated on: 15 May 2022, 19:11
How to use the negation technique on GMAT assumption questions (Silent Video)

Negation technique for those interested.

Originally posted by GmatKnightTutor on 12 May 2022, 23:47.
Last edited by GmatKnightTutor on 15 May 2022, 19:11, edited 1 time in total.
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Re: Negation in CR [#permalink] New post   13 May 2022, 08:32
Thanks for all reply!
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Re: Negation in CR [#permalink]
13 May 2022, 08:32
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