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On tree ideals

Martin Goldstern·Miroslav Repicky·Saharon Shelah·Otmar Spinas
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Abstract

Let l^0 and m^0 be the ideals associated with Laver and Miller forcing, respectively. We show that add (l^0) < cov(l^0) and add (m^0) < cov(m^0) are consistent. We also show that both Laver and Miller forcing collapse the continuum to a cardinal <= h .

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Martin Goldstern, Miroslav Repicky, Saharon Shelah, Otmar Spinas. 1993-11-15. On tree ideals. https://arxiv.org/abs/math/9311212

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