Unformatted text preview: 4. Section 7.2, Exercise 7 on page 239. (3 points) 5. Section 7.3, Exercise 1 on page 247. (Hint: if φ is an isomorphism, set x = φ ( 2 ) and show that x 2 = x + x .) (2 points) (5 problems, 13 points altogether)...
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 Spring '08
 Staff
 Math, Algebra, Weekday names, Category theory, Epimorphism, Monomorphism

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