- 章节名：3.2 FLOOR/CEILING APPLICATIONS
- 页码：第71页 2016-12-01 16:21:48
Incidentally, when we're faced with a "prove or disprove", we're usually better off trying first to disprove with a counterexample, for two reasons: A disproof is potentially easier (we need just one counterexample); and nitpicking arouses our creative juices. Even if the given assertion is true, our search for a counterexample often leads us to a proof, as soon as we see why a counterexample is impossible. Besides, it's healthy to be skeptical.
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