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Unformatted text preview: Chapter 2: Hints and Selected Solutions Section 2.1 (page 44) 2.1 Sound in Sound in Argument Valid? Socrates World? Wittgensteins World? 1. Yes Yes No 2. 3. 4. Yes Yes No 5. 6. 7. No No No 8. 2.2 1. Anyone who wins an academy award is famous Meryl Streep won an academy award Meryl Streep is famous The argument is valid but it is not sound since the first premise is false. (There are lots of people who have won various academy awards butwho are not famous.) 4. Al Gore is a politician Hardly any politicians are honest Al Gore must be dishonest The argument is not valid. For example, it is logically possible that Al Gore is the single honest politician out of thousands of politicians. 7. What if Max lives on a corner? 1 2.3 1. Many of the students in the class attend film screenings. There must be many students in the class. This argument is not valid. The word many could be used in vary difference senses in the two sentences....
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This note was uploaded on 03/25/2009 for the course LOGIC 20034 taught by Professor Dhoe during the Spring '09 term at Hanover.
- Spring '09