Homework 6

Reminder: Late homeworks will NOT be accepted! Write all proofs in sentence form.

  1. Rosen, Section 1.5, 21
  2. Rosen, Section 1.5, 29
  3. Rosen, Section 1.6, 8a,d
  4. Rosen, Section 1.6, 8a,b and consider if each function is onto. If so, give a proof, else give a counterexample.
  5. Rosen, 1.6 10
  6. Rosen, Given g:A->B and f:B->C. If f and g are onto then fog is onto.



Michael John Cramer
Wed Nov 12 10:02:42 EST 1997