Stronger ideals over ${\cal P}_{\kappa }\lambda $

Tom 174 / 2002

Yo Matsubara Fundamenta Mathematicae 174 (2002), 229-238 MSC: Primary 03E55; Secondary 03E35. DOI: 10.4064/fm174-3-3

Streszczenie

In §1 we define some properties of ideals by using games. These properties strengthen precipitousness. We call these stronger ideals. In §2 we show some limitations on the existence of such ideals over ${\cal P}_{\kappa}\lambda$. We also present a consistency result concerning the existence of such ideals over ${\cal P}_{\kappa}\lambda$. In §3 we show that such ideals satisfy stronger normality. We show a cardinal arithmetical consequence of the existence of strongly normal ideals. In § 4 we study some “large cardinal-like” consequences of stronger ideals.

Autorzy

  • Yo MatsubaraNagoya University
    Chikusa-ku, Nagoya, 464-8601, Japan
    e-mail

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