![](/img/cover-not-exists.png)
A Δ02Set with Barely Σ02Degree
Rod Downey, Geoffrey Laforte and Steffen LemppVolume:
64
Language:
english
Journal:
The Journal of Symbolic Logic
DOI:
10.2307/2586807
Date:
December, 1999
File:
PDF, 397 KB
english, 1999