Creature forcing and five cardinal characteristics of the continuum

Por • 13 feb, 2014 • Sección: Opinion

Arthur Fischer, Martin Goldstern, Jakob Kellner, Saharon Shelah

Abstract: We use a (countable support) creature construction to show that consistently

d=ℵ 1 =cov(NULL)<non(MEAGER)<non(NULL)<cof(NULL)<2 ℵ 0  . 

arXiv:1402.0367v1 [math.LO]

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