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    <title>Graph Theory: Industrial Drilling | Answer
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					Answer to Problem 4</h1>
							<h2>Yikes!</h2>
							<p>
								Can't do it, can you? Can you figure out why not?
							</p>
							<p>
								Very soon, you will discover the <i>odd-degrees
								corollary</i>, whereby you will know that the graph
								you were asked to draw <b>cannot
								exist</b>.
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