1996/07/15 by Saharon Shelah, Shelah, Saharon
Mathematics · #FOS: Mathematics #Logic (math.LO) #math.LO
paper · pdf · doi:10.48550/arxiv.math/9607227
arxiv created 1996/07/15 · arxiv updated 2009/11/30
One aim of this work is to get a universe in which weak versions of Martin axioms holds for some forcing notions of cardinality aleph0, aleph1 and aleph2 while on aleph2 club, the ``small'' brother of diamond, holds. As a consequence we get the consistency of ``there is no Gross space''. Another aim is to present a case of ``Historic iteration''.