Set and Interval Notation

Set delimiters (braces)

{a,b

A closing brace is automatically inserted.

Closed interval (brackets)

[a,b

A closing bracket is automatically inserted.

Open interval (parentheses)

(a,b

Symbols ›

A closing parenthesis is automatically inserted.

Empty set

Operators › ∅

Union

Operators › ∪

Intersection

Operators › ∩

Subset

Operators › ⊂

Superset

Operators › ⊃

Element of

Operators › ∈

Not an element of

Operators › ∉