Logic -First Exercise answers DOC

Title	Logic -First Exercise answers
Author	Olivia R
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Summary

Logic First Exercise answers Change the following statements into logical statements. Identify the subject, the predicate, the quantity (universal or particular), and the quality (affirmative or negative). 1. Some people are never satisfied. Some people are persons who are never satisfied partic...

Description

Logic - First Exercise answers Change the following statements into logical statements. Identify the subject, the predicate, the quantity (universal or particular), and the quality (afrmative or negative). 1. Some people are never satisfed. Some people are persons who are never satisfed particular, afrmative 2. The virtuous student never turns in late papers. All virtuous students are students who never turn in late papers universal, afrmative 3. Leather sofas nowadays are almost always made of plastic. Some leather sofas are things made of plastic particular, afrmative 4. A dog is a true friend All dogs are true friends universal, afrmative 5. All medical students are not interested in politics. This is ambiguous, two answers are possible: 1) No medical students are students interested in politics. universal, negative 2) Some (not all) medical students are not students interested in politics. particular, negative For the purposes of this class we will always interpret an "All S is not P" sentence as a "Some S is not P" sentence. 6. There is not a man of them but has his price. All men forming that group ("of them") are men who have their price universal, afrmative 7. A man may be a soldier without being brave. Some soldiers are not brave men particular, negative 8. Few philosophers are wealthy. Note that in this sentence, the subject is not philosophers but the proportions of wealthy philosophers which is asserted to be small. Therefore, the sentence is: The proportion of wealthy philosophers is a small proportion. universal, afrmative (universal since all of the subject class is spoken about) Possible alternatives: Some philosophers are wealthy men. Some philosophers are not wealthy men. But both alternatives lose the sense of fewness). In this class, we will interpret "few philosophers are wealthy" as "Some philosophers are wealthy people." 9. The Philistines were not good neighbors to the Israelites. No persons who were Philistines are persons who were good neighbors to the Israelites. the change from Philistines to persons who were Philistines is required by the attempt to keep the verb in the present tense....