Suppose C is a subset of V with the property that u; v 2 C implies12 .u C v/ 2 C. Let w
Chapter 6, Problem 28(choose chapter or problem)
Suppose C is a subset of V with the property that u; v 2 C implies12 .u C v/ 2 C. Let w 2 V. Show that there is at most one point in Cthat is closest to w. In other words, show that there is at most one u 2 Csuch thatkw ukkw vk for all v 2 C.Hint: Use the previous exercise.
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