Solved: The following problem, devised by Ginger Bolton,
Chapter 6, Problem 6.123(choose chapter or problem)
The following problem, devised by Ginger Bolton, appeared in the January 1989 issue of the College Mathematics Journal (Vol. 20, No. 1, p. 68): Given a positive integer n 2, let S be the set of all nonempty subsets of {2,3,...,n}. For each Si S, letPi be the product of the elements of Si. Prove or disprove that 2n11 i=1 Pi = (n+1)! 2 1.
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