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Unformatted text preview: A is not in the range oF f . Problem 1. Use the proposition above together with a grubby argument, or come up with your own elegant argument, to prove the Following proposition. Proposition 2. If X is a nonempty set and f : P ( X ) X then f is not monomorphic (injective, onetoone)....
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 Spring '08
 McAllister
 Math, Sets

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