exercise answers, fall 2006

exercise answers, fall 2006 - Answers to exercise A on p....

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Answers to exercise A on p. 7-9 1. Premises: If a person's desk is organized, her mind is organized. Susan's desk is organized. Conclusion: Susan's mind is organized. 2. Premises: Abortion involves the taking of human life. Anything that involves the taking of human life raises serious moral questions. Conclusion: Abortion raises serious moral questions. 3. Premises: All living things need some external source of energy. The sun is the only external source of energy for living things on earth. Conclusion: All living things on earth need the sun. 4. Premises: No man has any natural authority over his fellows. Force produces no right to any natural authority of a man over his fellows. Conclusion: All justifiable authority amoung men must be established on the basis of conventions. 5. Not an argument. It is simply a conditional (if . .. then) statement. 6. Premises: The existence of God provides the only satisfactory explanation of the existence of changing things. There must be a satisfactory explanation of whatever exists. Conclusion: God exists. 7. Not an argument (in our sense of the term). 8. Not an argument. In this case "thus" means "for example". 9. Premises: If health were the only desirable characteristic in a human being, then healthy people would always be happier than unhealthy people. It is not the case that healthy people are always happier than unhealthy people Conclusion: Health is not the only desirable characteristic in a human being. 10. Not an argument. 11. Premise: A prince is not able to exercise this virtue of liberality without risk if it be known. Conclusion: If a prince is prudent, he must not object to being called miserly.
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EXERCISE B, P. 8-9 Question 1 1. A wholly good and omnipotent being would eliminate all evil from the world. Therefore, 2. If there is evil in the world there is no God. 3. There is evil in the world. Therefore, 4. There is no God. Question 2 1. All alcoholic beverages are good for people's health if consumed in moderation. 2. Wine is an alcoholic beverage. Therefore, 3. Wine is good for people's health if consumed in moderation. 4. Nothing that is good for people's health if consumed in moderation should be heavily taxed. Therefore, 5. Wine should not be heavily taxed. Question 3 v1. The so-called morning star is Venus. 2. Venus is a planet. Therefore, 3. The so-called morning star is a planet. 4. No planet is a star. Therefore, 5. The so-called morning star is not a star. Question 4 1. Consciouness-altering drugs produce illusions in their users. 2. An illusion is a bad state. Therefore,
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3. Consciousness-altering drugs produce a bad state in their users. 4. Any drug that produces a bad state in its users ought to be illegal. Therefore,
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exercise answers, fall 2006 - Answers to exercise A on p....

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