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1. Which of the following is a premise indicator? a. Therefore b. Hence c. Because d. If
2. Which of the following is a conclusion indicator? a. For b. Only c. Thus d. When 3. An argument is defined to be a set of sentences. But not any set will do. For one thing, an argument must be a set of sentences one of which is the conclusion; it is meant to follow from the other sentences. But, also, each of the sentences needs to be the sort that is either true or false. Which of the following is the kind of sentence which is either true or false? a. A question about logic. b. A demand for attention. c. An exclamation of excitement. d. A statement about numbers. 4. A valid argument must a. Have a true conclusion. b. Have two premises. c. Have premises that couldn't be false. d. None of the above. 5. The following is a valid argument (the premises are written first, followed by the conclusion): a. Neither Bob nor Carol is a student. Thus, Carol is a student. b. Either Bob or Carol is a student. But Bob is not a student, so Carol is. c. Either Bob is a student or Carol is not. So, both are students. d. Exactly one of the two is a student. So, Bob is a student. 6. An argument is sound if and only if a. It is valid and all its premises are true. b. It is not invalid. c. It is inductively strong. d. None of the above. 7. A set of sentences is logically consistent if and only if a. It is possible that some member of the set be true. b. It is possible that each member of the set be false. c. It is possible that all members of the set be true. d. None of the above. 8. The following is a logically false sentence: a. All whales are whales. b. There are whales in Ohio. c. There are whales in Ohio but there are no whales in Ohio. d. None of the above. 9. Which of the following is logically equivalent to "Neither Bob nor Carol is a student"? a. Both Bob and Carol are students. b. Bob is a student but Carol is not. c. Both Bob and Carol are not students. d. None of the above. 10. An argument is inductive if and only if its premises are intended to... a. lead to its absurdity with high probabilty. b. lead to its conclusion with some probabilty. c. lead to its conclusion with high probabilty. d. None of the above.
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