Not operator

The and operator is a boolean operator which will return true if the boolean value to the right of it is false.

Syntax

In many languages, the not operator uses the ! symbol.

In some other languages, a keyword is used instead: in Python, for example, this keyword is not.

Examples where not returns true

!false
!(4 < 6)
!(7 == 8)

Examples where not returns false

!true
!(5 == 5)
!(8 < 10)