Norms on possibilities II: more ccc ideals on 2^{omega}
英文摘要：
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.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
