منابع مشابه
On Normal Precipitous Ideals
An old question of T. Jech and K. Prikry asks if an existence of a precipitous ideal implies necessary existence of a normal precipitous ideal. The aim of the paper is to prove some results in the positive direction. Thus, it is shown that under some mild assumptions, an existence of a precipitous ideal over א1 implies an existence of a normal precipitous ideal over א1 once a Cohen subset is ad...
متن کاملOn almost precipitous ideals
With less than 0# two generic extensions of L are identified: one in which א1, and the other א2, is almost precipitous. This improves the consistency strength upper bound of almost precipitousness obtained in [6], and answers some questions raised there. Also, main results of [5] are generalizedassumptions on precipitousness are replaced by those on ∞-semi precipitousness. As an application it ...
متن کاملPrecipitous Towers of Normal Filters
We prove that every tower of normal filters of height δ (δ supercompact) is precipitous assuming that each normal filter in the tower is the club filter restricted to a stationary set. We give an example to show that this assumption is necessary. We also prove that every normal filter can be generically extended to a well-founded V -ultrafilter (assuming large cardinals). In this paper we inves...
متن کاملClinical Significance of Precipitous Labor
BACKGROUND Precipitous labor is defined as expulsion of the fetus within less than 3 hours of commencement of regular contractions. We retrospectively examined our cases of precipitous labor to identify the clinical significance and perinatal outcomes following precipitous labor in singleton vertex deliveries. METHODS A retrospective population-based study was conducted comparing women with s...
متن کاملA model with a precipitous ideal , but no normal precipitous ideal
Starting with a measurable cardinal κ of the Mitchell order κ++ we construct a model with a precipitous ideal on א1 but without normal precipitous ideals. This answers a question by T. Jech and K. Prikry. In the constructed model there are no Q–point precipitous filters on א1, i.e. those isomorphic to extensions of Cubא1 .
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ژورنال
عنوان ژورنال: Journal of Education and Teaching in Emergency Medicine
سال: 2017
ISSN: 2474-1949
DOI: 10.5070/m524036770