solidot新版网站常见问题,请点击这里查看。

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>>