![](/images/ico/ico_close.png)
![](/images/ico/ico5.png)
Publisher: Cambridge University Press
E-ISSN: 1943-5886|57|2|644-658
ISSN: 0022-4812
Source: The Journal of Symbolic Logic, Vol.57, Iss.2, 1992-06, pp. : 644-658
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
Related content
![](/images/ico/ico_close.png)
![](/images/ico/ico5.png)
A Δ2 0 set with no infinite low subset in either it or its complement
The Journal of Symbolic Logic, Vol. 66, Iss. 3, 2001-09 ,pp. :
![](/images/ico/ico_close.png)
![](/images/ico/ico5.png)
The Journal of Symbolic Logic, Vol. 50, Iss. 4, 1985-12 ,pp. :
![](/images/ico/ico_close.png)
![](/images/ico/ico5.png)
![](/images/ico/ico_close.png)
![](/images/ico/ico5.png)
Sets with no subset of higher degree
The Journal of Symbolic Logic, Vol. 34, Iss. 1, 1969-05 ,pp. :