MAA 3200 Midterm: MAA 3200 FIU Exam 103
Document Summary
If you continue your work on the back or another page, be sure to leave a note. Do not use a calculator, book, or any personal paper. You may ask me for extra paper, but hand it in with your exam. See me if there are any ambiguous questions (about the universal set, about missing quanti ers, etc). Each problem is worth 20 points: let a, b, c be arbitrary sets. Explain each step in words, but you don"t have to explain any tautologies you use. Use complete sentences and the usual element-method wherever possible. Prove a): if a and b\c are disjoint then a b c. Or prove b): if a b = b then a b = a. 1: answer true or false; you do not have to justify your answers. ( x r, x < 1 and x > 2) A, b, c z, if a|c and b|c then ab|c.
