Set and Interval Notation

The following set and interval notation can be entered in Show My Work boxes.

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Notation

Keyboard

Button

Notes

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 open interval button

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