- #1

- 21

- 0

## Homework Statement

Determine whether the following in R^2 are compact or not.

(i) [0,1] X [0,1)

(ii) [a,b] X [c,d] where a < b, c < d

## The Attempt at a Solution

I have seen this notation before but I never knew what it meant.

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- Thread starter s_j_sawyer
- Start date

- #1

- 21

- 0

Determine whether the following in R^2 are compact or not.

(i) [0,1] X [0,1)

(ii) [a,b] X [c,d] where a < b, c < d

I have seen this notation before but I never knew what it meant.

- #2

LeonhardEuler

Gold Member

- 859

- 1

[tex]0\leq x \leq 1[/tex]

and

[tex]0\leq y < 1[/tex]

- #3

gb7nash

Homework Helper

- 805

- 1

Euler beat me. :(

Share: