Phi 210 Essay

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If "or" is used in its non-exclusive sense, which of the five following syllogisms is invalid? Answer Either P or Q. Not P. Therefore, Q. Either P or Q. Not Q. Therefore, P. Either P or Q. P. Therefore, not Q. P and Q are not equal. P is related to R. Therefore, Q and R are related. 5 points Question 3 Which one of the following statements is a universal proposition? Answer Karen is a woman. All women are mortal. Some women are caring persons. Karen is a woman and knows many women herself. 5 points Question 4 Which one of the following syllogisms is invalid? Answer No X are Y. Some Z are X. Therefore, some Z are not Y. Some X are Z. All X are Y. Therefore, some Y are Z. Some X are Y. Some Z are X. Therefore, some Z are Y. Some X are not Z. All X are Y. Therefore, some Y are not Z. 5 points Question 5 A basic form of deductive argument is ________. Answer inductive reasoning. the proposition. causation. the syllogism. 5 points Question 6 Which one of the following hypothetical syllogisms is invalid? Answer If P, then Q. P. Therefore, Q. If P, then Q. Not Q. Therefore, not P. If and only if P, then Q. Not P. Therefore, not Q. If P, then Q. Not P. Therefore, not Q. 5 points Question 7 When the premises are true and the syllogism is valid, we have a(n) _______ argument. Answer illogical perfect sound inductive 5

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