# Logical negation operator (!)

**!**Value

## Value — Logical or { Logical }

The value to negate.

## Returns — Logical or { Logical }

The negated value.

Negates the logical value, turning TRUE into FALSE and FALSE into TRUE. !TRUE!TRUE returns FALSE and !FALSE!FALSE returns TRUE.

Use `!`

, && and || in conjunction with IF to express logical
conditions.

This formula returns 2 only if Field1.ValueField1,Value is 20
**and** Field2.ValueField2,Value is not 40, and 4
otherwise:

The formula can also be written using the AND and NOT functions:

`&&`

is written between the values to test, instead of before
them, which can make formulas easier to read.

To make the formula even easier to read, consider replacing the second = operator with either the <> operator or the != operator (which mean "not equal to"):

## Examples

Returns TRUE.

Returns FALSE.

Returns FALSE if the switch field is toggled to its "on" position and TRUE otherwise.

Returns { FALSE, TRUE, TRUE }{ FALSE; TRUE; TRUE }, as each individual array element is negated.