December 2010
Intermediate to advanced
494 pages
11h 20m
English
Content preview from Essentials of Discrete Mathematics, 2nd Edition
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Hints, Answers, and Solutions to Selected Exercises
1.1 Formal Logic
1. (a) (q ∧ p) → ¬r
(b) If the car will start, then there isn't a blown head gasket or water in the cylinders.
3. (a) (q ∨ r) → ¬p
(b) ¬¬p → ¬(q ∨ r)
(C) If you can vote, then you aren't under 18 or from Mars.
5. (a) If the ground is wet, then it is raining.
(b) If the ground is not wet, then it is not raining.
7. (a) Yes, the first components of equal ordered pairs must be equal.
(b) If a = c, then (a, b) = (c, d).
(c) No. For example, 1 = 1, but (1, 2) ≠ (1, 5).
9. 
11. The statements ¬(p → q) and ¬p → ¬q are not logically equivalent:
13.
15. (a)
(b) There are only two ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.