PROBLEM 4:

due by 3 PM, Friday September 15, 2000

A farmer has a corral in the shape of a square with side one unit in length. His 5 horses are inside. Prove that no matter how they move, at least two are within of a distance $\sqrt{2}/2$ units from each other at any time.

Solutions, questions and/or comments should be directed to Judy Downey or Griff Elder

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Last modified:   Mon Sep 11 09:12:50 CDT 2000