### Norms on possibilities II: More ccc ideals on $2^{\textstyle\omega}$

by Roslanowski and Shelah. [RoSh:628]
J Applied Analysis, 1997
We use the method of norms on possibilities to answer a question of Kunen and construct a ccc sigma --ideal on 2^omega with various closure properties and distinct from the ideal of null sets, the ideal of meager sets and their intersection.

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