solidot新版网站常见问题,请点击这里查看。
消息
本文已被查看710次
Canonical immunity and genericity. (arXiv:1707.03947v1 [math.LO])
来源于:arXiv
Whereas the usual notions of immunity -- e.g., immunity, hyperimmunity, etc.
-- are associated with Cohen genericity, canonical immunity, as introduced by
Beros, Khan and Kjos-Hanssen, is associated instead with Mathias genericity.
Specifically, every Mathias generic is canonically immune and no Cohen
2-generic computes a canonically immune set. 查看全文>>