Determining which sets are open?

  • Thread starter ~Death~
  • Start date
  • #1
45
0

Main Question or Discussion Point

(1/2,1/3),[1/2,1],[0,1/2]

which are open in the subspace topology of the subspace [0,1] of the lower limit topology on R
 

Answers and Replies

  • #2
HallsofIvy
Science Advisor
Homework Helper
41,833
955
Use the definition! Which of those is the intersection of [0, 1] with a set open in R (using the lower limit topology, of course)?
 

Related Threads on Determining which sets are open?

Replies
7
Views
3K
  • Last Post
Replies
12
Views
2K
  • Last Post
Replies
4
Views
6K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
9
Views
5K
Replies
17
Views
3K
  • Last Post
Replies
5
Views
2K
  • Last Post
Replies
5
Views
30K
  • Last Post
Replies
6
Views
5K
  • Last Post
Replies
4
Views
5K
Top