definable forcing notions;
forcing with norms;
strong ccc properties;
D O I:
10.1007/s00153-004-0213-7
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
We continue developing the general theory of forcing notions built with the use of norms on possibilities, this time concentrating on ccc forcing notions and classifying them.