All real numbers between a and b, but not including a or b |
{x∣a<x<b} |
(a,b) |
All real numbers greater than a, but not including a |
{x∣x>a} |
(a,∞) |
All real numbers less than b, but not including b |
{x∣x<b} |
(−∞,b) |
All real numbers greater than a, including a |
{x∣x≥a} |
[a,∞) |
All real numbers less than b, including b |
{x∣x≤b} |
(−∞,b] |
All real numbers between a and b, including a |
{x∣a≤x<b} |
[a,b) |
All real numbers between a and b, including b |
{x∣a<x≤b} |
(a,b] |
All real numbers between a and b, including a and b |
{x∣a≤x≤b} |
[a,b] |
All real numbers less than a or greater than b |
{x∣x<a and x>b} |
(−∞,a)∪(b,∞) |
All real numbers |
{x∣x is all real numbers} |
(−∞,∞) |