The Bristol model: An abyss called a Cohen real
The Bristol model: An abyss called a Cohen real
复制标题
DOI:
10.1142/s0219061318500083
复制
发表时间:
2017-04
期刊:
影响因子:
--
通讯作者:
Asaf Karagila
中科院分区:
文献类型:
--
作者:
Asaf Karagila
We construct a model [Formula: see text] of [Formula: see text] which lies between [Formula: see text] and [Formula: see text] for a Cohen real [Formula: see text] and does not have the form [Formula: see text] for any set [Formula: see text]. This is loosely based on the unwritten work done in a Bristol workshop about Woodin’s HOD Conjecture in 2011. The construction given here allows for a finer analysis of the needed assumptions on the ground models, thus taking us one step closer to understanding models of [Formula: see text], and the HOD Conjecture and its relatives. This model also provides a positive answer to a question of Grigorieff about intermediate models of [Formula: see text], and we use it to show the failure of Kinna–Wagner Principles in [Formula: see text].