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On the simplicity of the automorphism group ofP(ω)/fin

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We prove that the automorphism group ofP(ω)/fin remains simple if ℵ2 Cohen reals are added to a model of ZFC+CH.

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Authors and Affiliations

  1. Mathematisches Institut, Freie Universität Berlin, Arnimallee 3, W-1000, Berlin, Federal Republic of Germany

    Sakaé Fuchino

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  1. Sakaé Fuchino
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This paper is based on a part of author's Dissertation [4] written under the supervision of Professor Sabine Koppelberg whom the author would like to thank for her encouragement during the preparation of the thesis. Thanks are also due to the referee for some valuable suggestions on improvement of the formulation

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Fuchino, S. On the simplicity of the automorphism group ofP(ω)/fin. Arch Math Logic 31, 319–330 (1992). https://doi.org/10.1007/BF01627505

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  • DOI: https://doi.org/10.1007/BF01627505

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