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Published online by Cambridge University Press: 31 October 2008
An identity involving symmetric functions of n letters may in a certain class of cases be extended immediately to a greater number of letters.
For example, the theorem
may be written
and in the latter form it is true for any number of letters.
1 Cf. DrMuirhead, R. P., “Some Proofs of Newton's Theorem on Sums of Powers of Roots,” Proc. Edin. Math. Soc., 24, 1904–1905.Google Scholar