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“Solutions of the Kirkwood-Salsburg equations at negative activity” It is well-known that the correlation functions of grand-canonical Gibbs measures satisfy the Kirkwood-Salsburg equations. If the activity is small enough it can be shown that this solution is unique and an analytic function of the activity. We show that in this case the solution of the Kirkwood-Salsburg equations at negative activity correspond to the Janossy densities of the so-called Kirkwood-closure process. This is an extension of the existence result of Kuna et al