MATH 211 Drop Quiz Chapter 1, Fall 2011
American University of Beirut · Discrete Structures · 1 page
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AMERICAN UNIVERSITY OF BEIRUT
Math 211 - Summer 2010
CHECKPOINT -1-
Name: Selbibken
Check whether the following are logically equivalent. Justify your answer.
1. sp — (qr) and g — (pvr).
2. (p — q) — (r — s) and (p —+r) — (¢— 3).