A**T
发帖数: 362 | 1 For a set A, is "A \subseteq \bar{A^o}" always ture? That is, is a set A
always contained in the closure of its interior? | x*****d
发帖数: 427 | 2 对欧氏空间的子集，这种反例很多啊，比如 [0,1] Union {2}
【在 A**T 的大作中提到】
: For a set A, is "A \subseteq \bar{A^o}" always ture? That is, is a set A
: always contained in the closure of its interior?
| d******s
发帖数: 180 | 3 明显不对啊，如果A根本没有interior怎么办？
【在 A**T 的大作中提到】
: For a set A, is "A \subseteq \bar{A^o}" always ture? That is, is a set A
: always contained in the closure of its interior?
|
|
