No CrossRef data available.
Published online by Cambridge University Press: 31 October 2008
Numerous proofs have been given of this familiar theorem, which states that if a1, a2, …, an are positive, and not all equal, then
The following is an elementary proof by induction, which I have not seen used before. It is, of course, not claimed to be novel, and not likely to be so.
1 See e.g. Hardy, Littlewood & Pölya Inequalities, where many references will be found.