Title of article :
Cardinal characteristics and projective wellorders
Author/Authors :
Fischer، نويسنده , , Vera and Friedman، نويسنده , , Sy David، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2010
Abstract :
Using countable support iterations of S -proper posets, we show that the existence of a Δ 3 1 definable wellorder of the reals is consistent with each of the following: d < c , b < a = s and b < g .
Keywords :
Cardinal characteristics , Projective wellorders , Coding
Journal title :
Annals of Pure and Applied Logic
Journal title :
Annals of Pure and Applied Logic