PHI 1101 Lecture 3: Chapter 3
11 Jul 2016
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3 main steps to an argument: recognizing (ch. 1) analyzing (ch. 2) evaluating (ch. Purpose of analyzing (presenting arguments in standard form + diagrams) is to aid in their evaluation. Purpose of evaluating an argument is to know whether or not it is a good one. In order to evaluate, we must know about different kinds of arguments. Premises are meant to guarantee the conclusion (100%) It is an argument intended to provide logically conclusive support for its con ation. If the premises are true, then the conclusion has to be true. When we evaluate deductive arguments, we describe them as valid or invalid: examples, 1. All men are mortals: socrates is a man, therefore, socrates is mortal. (premises guarantee the conclusion) - deductive, 2. If: a = b, b = c, therefore, a = c, 3. Monday, september 28, 2015: whales are mammals, therefore, whales have lungs, 4.
