๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

An Easton theorem for level by level equivalence

โœ Scribed by Arthur W. Apter


Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
130 KB
Volume
51
Category
Article
ISSN
0044-3050

No coin nor oath required. For personal study only.

โœฆ Synopsis


MSC (2000) 03E35, 03E55

We establish an Easton theorem for the least supercompact cardinal that is consistent with the level by level equivalence between strong compactness and supercompactness. In both our ground model and the model witnessing the conclusions of our theorem, there are no restrictions on the structure of the class of supercompact cardinals. We also briefly indicate how our methods of proof yield an Easton theorem that is consistent with the level by level equivalence between strong compactness and supercompactness in a universe with a restricted number of large cardinals. We conclude by posing some related open questions.


๐Ÿ“œ SIMILAR VOLUMES


Level by level equivalence and strong co
โœ Arthur W. Apter ๐Ÿ“‚ Article ๐Ÿ“… 2004 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 219 KB

## Abstract We force and construct models in which there are nonโ€supercompact strongly compact cardinals which aren't measurable limits of strongly compact cardinals and in which level by level equivalence between strong compactness and supercompactness holds nonโ€trivially except at strongly compac

Tallness and level by level equivalence
โœ Arthur W. Apter ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 131 KB

## Abstract We construct two models containing exactly one supercompact cardinal in which all nonโ€supercompact measurable cardinals are strictly taller than they are either strongly compact or supercompact. In the first of these models, level by level equivalence between strong compactness and supe

Indestructibility and level by level equ
โœ Arthur W. Apter ๐Ÿ“‚ Article ๐Ÿ“… 2007 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 133 KB

If ฮบ < ฮป are such that ฮบ is indestructibly supercompact and ฮป is 2 ฮป supercompact, it is known from [4] that {ฮด < ฮบ | ฮด is a measurable cardinal which is not a limit of measurable cardinals and ฮด violates level by level equivalence between strong compactness and supercompactness} must be unbounded i

Indestructibility under adding Cohen sub
โœ Arthur W. Apter ๐Ÿ“‚ Article ๐Ÿ“… 2009 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 120 KB

## Abstract We construct a model for the level by level equivalence between strong compactness and supercompactness in which the least supercompact cardinal __ฮบ__ has its strong compactness indestructible under adding arbitrarily many Cohen subsets. There are no restrictions on the large cardinal s

Failures of GCH and the level by level e
โœ Arthur W. Apter ๐Ÿ“‚ Article ๐Ÿ“… 2003 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 175 KB

## Abstract We force and obtain three models in which level by level equivalence between strong compactness and supercompactness holds and in which, below the least supercompact cardinal, GCH fails unboundedly often. In two of these models, GCH fails on a set having measure 1 with respect to certai

Supercompactness and measurable limits o
โœ Arthur W. Apter ๐Ÿ“‚ Article ๐Ÿ“… 2006 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 125 KB

## Abstract We construct models for the level by level equivalence between strong compactness and supercompactness in which for __ฮบ__ the least supercompact cardinal and __ฮด__ โ‰ค __ฮบ__ any cardinal which is either a strong cardinal or a measurable limit of strong cardinals, 2^__ฮด__^ > __ฮด__ ^+^ and