Evaluating arguments overhead

Evaluating arguments overhead - Typically this will involve...

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MODES OF REASONING: EVALUATING ARGUMENTS Questions to ask when evaluating an argument: 1. Does the conclusion follow from the premises? 2. Are the premises acceptable? 3. Do the premises provide enough support for the conclusion? (Inductive arguments only) - we do not ask if the conclusion is acceptable. Showing that the conclusion does not follow from the premises: 1. Find a counter-example using the same argument pattern with obviously true premises and an obviously false conclusion. (for detailed directions see Cederblom p. 84) 2. Describe a possible situation in which the premises are true and the conclusion is false.
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Unformatted text preview: Typically this will involve pointing out potential criteria which the argument overlooks. When is a premise unacceptable? A premise is unacceptable when it is 1. False , i.e. not true. 2. Doubtful , i.e. we don’t know if it is true. 3. Unclear , i.e. we don’t know what it is claiming. Some ways to cast doubt on premises: 1. Present a counter-example to a universal generalization. 2. Finding a clear case where the if part is true and the then part is false in an if-then premise. 3. For any premise, point out further implications that are doubtful....
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