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The theory of negation (or, as we call it, the negation test), hinges on the role of assumptions. Assumptions are the information that is necessary for an argument to hold. That means, if you negate the correct assumption, the argument must not hold!
So, here is a simple "Chemical X should be restricted because all poisons should be restricted" is a simple example. Suppose we are wondering if an answer choice, "Chemical X is a poison," is the correct assumption. Well, what if it's false? What if Chemical X is not a poison? Well, the argument falls apart! That means we have the right answer.
The thing about the Negation test is, it's not very efficient. If you find that you're consistently down to two answer choices, it can be a great tie breaker. But if you're practicing with Kaplan strategies, you shouldn't need it! Focus on predicting what the answer should be, and looking for the best match!
well negation technique simply says that when having doubt over two choices, negate them and check which will weaken argument . the one which weakens most is correct answer. do take care to logically negate answer opposite of good is not good and it is not bad. . opposite of some is not some (or many ) it is none and opposite of all is not all
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I use the following logic. Assumptions are additional premises. If premises go awry, your conclusion will be flawed. Hence, we test this by assuming that our additional premise (the assumption), is wrong & whether that has any effect on our conclusion.
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Re: Method of Negation in CR
03 Oct 2016, 01:19