Next: MATRICES
Up: TOPOLOGY
Previous: BACKGROUND MATERIAL
- (15) For each of the following sets, find the interior, the
closure, and the boundary. Then determine which of the sets are open,
closed, neither, or both.
-
-
-
-
-
-
- (10) Prove that is closed if and only if the complement
is open.
- (10)
Prove that
if and only if for any there exists
a
and a
Henry Wolkowicz
2000-12-29