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Note on omega-nw-nep forcing notions

Saharon Shelah
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Abstract

We prove that if Q is a nw-nep forcing then it cannot add a dominating real. We also prove that Amoeba forcing cannot be P(X)/I if I is an aleph_1-complete ideal.

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Saharon Shelah. 2003-03-24. Note on omega-nw-nep forcing notions. https://arxiv.org/abs/math/0303293

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