Saturday, October 2, 2010

Something I found Interesting

Something from the reading I found interesting was in chapter 5 Common Mistakes in Evaluating Premises. I found it interesting that many people often make mistakes in evaluating premises. In the section they talk about arguing backwards. Arguing backwards is: its a mistake to reason that because we have a strong or valid argument with a true conclusion its premises must be true. Some people get confused because they think that just because the argument is valid or strong and that the conclusion is true means that the premises must be true.  When you are evaluating an argument it is supposed to convince us that the conclusion is true not that the premises are true. That is definitely arguing backwards when someone is trying to convince you that the premises are true instead of the conclusion. We already no that when an argument is valid and conclusion false that there must be at least one false premise.

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