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General questions relating to LSAT Logical Reasoning.
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 rench.co
  • Posts: 8
  • Joined: Mar 21, 2022
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#95438
The justify the conclusion review section notes that justify question conform to the relationship Answer Choice (correct)--> Conclusion (valid). Is this form similar to conditional reasoning in which the contrapositive would be taken and be valid. For example, if both the conclusion and the premise pieces we are linking are originally positive, the contrapositive conclusion (valid) negative-->answer choice (correct) negative would result?
 Adam Tyson
PowerScore Staff
  • PowerScore Staff
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  • Joined: Apr 14, 2011
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#95462
It absolutely is, rench.co ! Some people call these questions "Sufficient Assumptions," because they are sufficient to make the conclusion necessary. If the conclusion was not true, that would mean the correct answer could not be true. That's a lot like the Assumption Negation Technique that we use to prove the correct answers to Assumption (aka Necessary Assumption) questions. In those cases, the conclusion requires the assumption, so when you negate the correct answer you disprove the conclusion or otherwise destroy the argument.

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