Truncatable systems, moment free energy

This is a function of N and the N, (as well as the fixed control parameters II, T, which we suppress in our notation). We can therefore write the excess Gibbs free energy per particle, G(Ni,N)/N = g(mi), as a function of the moments m, = Nt/N (i = 1... K) of the normalized particle distribution n a). Altogether, die Gibbs free energy per particle of a truncatable system becomes... 

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