PHL145H5 Lecture Notes - Lecture 10: Ad Hominem, Fallacy, Soundness

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17 Jun 2017
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Relevance is relationship between sentences: relevance is not the same thing as truth irrelevant if it simply doesn"t bear on the truth or falsity of the conclusion, a premise can be true, but irrelevant to give conclusion. Irrelevance is not the same thing as falsity: a premise can be false, but still be relevant to given conclusion. Fallacies: common and tempting ways of reasoning badly. Fallacy of irrelevant reason: using an irrelevant premise to support a claim. Motivations behind fallacy red herring to deflect attention from the point. 1: never allow jokes,insults, or the like to deflect your attentions from the issue, make sure that the person you are talking to are talking about the same topic. When we ignore someone"s arguments or reasons and instead attack them. Ad hominem: when they ignore person"s actual argument and attack the person instead.

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