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Chapter Two: Good Reasoning Review Applying Ethics: A Text with Readings (10 th ed.) Julie C. Van Camp, Jeffrey Olen, Vincent Barry Cengage Learning/Wadsworth.

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Presentation on theme: "Chapter Two: Good Reasoning Review Applying Ethics: A Text with Readings (10 th ed.) Julie C. Van Camp, Jeffrey Olen, Vincent Barry Cengage Learning/Wadsworth."— Presentation transcript:

1 Chapter Two: Good Reasoning Review Applying Ethics: A Text with Readings (10 th ed.) Julie C. Van Camp, Jeffrey Olen, Vincent Barry Cengage Learning/Wadsworth

2 What is the purpose of an argument? To show that the conclusion is true OR To show that it is reasonable to accept the conclusion as true

3 Deductive arguments What is a deductive argument? – An argument that claims to follow truth- preserving rules What is a truth-preserving rule? – If the first two statements (premises) are true, the conclusion will be true

4 Inductive Arguments What is an inductive argument? – An argument in which supporting statements, or evidence, aim to show that it is reasonable to accept that the conclusion is true What is a good inductive argument? – A warranted argument

5 Fallacies What is a fallacy? – an unreliable means of arguing, one that does not provide good reason for accepting the argument’s conclusion What is a formal fallacy? – Use of invalid deductive rules What is an informal fallacy? – Unreliable strategies that people tend to use

6 Informal Fallacies What is an Ad Hominem Argument? – An attack on the opponent rather than the opponent’s argument What is a Faulty Analogy? – Misuse of argument by analogy (an argument that two things alike in some respects must be alike in other respects) What is Questionable Authority? – Supporting a conclusion by relying on the judgment of someone who is not a reliable authority

7 More informal fallacies What is begging the question? – Assuming a premise you want to prove What is equivocation? – Implicit reliance on two different meanings of the same word to reach a conclusion What is hand waving? – Claiming something is true (or false) because everyone knows it

8 More informal fallacies What is hasty generalization? – Reaching a general conclusion form a sample that is biased or too small What is appeal to ignorance? – Arguing that a claim is true (or false) because we have no evidence proving otherwise What is Post Hoc Ergo Propter Hoc? – “after this, therefore because of this” – Claiming that one thing is caused by another because it follows the other

9 More informal fallacies What is a red herring? – An irrelevant issue introduced to distract attention from the issue at hand What is a slippery slope? – Assuming an action will inevitably lead to an unwanted outcome as a result of the small steps that inevitably will follow What is a straw man? – A distortion of an opponent’s actual position to make it easier to attach


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