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    Martin's axiom and almost disjoint families

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    Assuming \rfs{MA} + \aleph_1 < 2^{\aleph_0}, we show that, for any κ,λ<2ℵ0\kappa,\lambda < 2^{\aleph_0} and any almost disjoint family \setn{a_i}{i < \lambda} of countable subsets of κ\kappa, with λ<2ℵ0\lambda < 2^{\aleph_0}, there is a partition \setn{p_n}{n\in\omega} of κ\kappa so that pn∩aip_n \cap a_i is finite for each (i,n)∈λ×ω(i,n) \in \lambda\times \omega
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