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Unformatted text preview: P Q ). (b) ( P Q ) ( P Q ). (2 points) 2. Do exercise A1.3 of Simon and Blume (1994, p.858). Hint: If you want to show that two sets, D and E , are equal, i.e., D = E , you need to prove both D E and E D . In other words, prove that if x D then x E and that if x E then x D . (6 points) 3. Do exercise A1.5 of Simon and Blume (1994, p.858). (2 points) 1...
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- Fall '07