THIN EQUIVALENCE-RELATIONS AND EFFECTIVE DECOMPOSITIONS

被引:13
作者
HJORTH, G
机构
关键词
DESCRIPTIVE SET THEORY; THIN EQUIVALENCE RELATIONS;
D O I
10.2307/2275133
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Let E be a Sigma(1)(1) equivalence relation for which there does not exist a perfect set of inequivalent reals. If O* exists or if V is a forcing extension of L, then there is a good Delta(2)(1) well-ordering of the equivalence classes.
引用
收藏
页码:1153 / 1164
页数:12
相关论文
共 8 条