Formula (Extended): $NOT Function
## Overview
Return false if the argument is true.
## Syntax
```
$NOT(Logical Expression)
```
## Parameter
|Parameter|Type|Required|Description|
|:---|:---|:---|:---|
|Logical Expression|[Logical Expression](/en/manual/formula-function-logical-expression)|Required||
### Column Usable as Parameters
|Parameter|Classification|Numerical Value|Date|Description|Check|
|:---|:---|:---|:---|:---|:---|
|Logical expression|Yes*1|Yes*1|Yes*1|Yes*1|Yes|
*1: Can be used as a variable to configure the "[Logical Expression](/en/manual/formula-function-logical-expression)".
Example:
NumA == 1000
DateA > DateB
ClassA == "Text"
## Return Value
If the argument is true, false. Otherwise, true.
### Return Value for Target Column
|Target|Return Value|
|:---|:---|
|Classification (including title, status, manager, owner)|Display the string "True" or "False"|
|Numerical Value (including work volume, progression rate, remaining work volume)|Do not display|
|Date (including start and completion)|Do not display|
|Description (including content)|Display the string "True" or "False"|
|Check (including lock)|Check ON if true, check OFF if false|
## Usage Example ①
Specify parameters by screen column name (name displayed)
### Formula

### Parameters

### Calculation Result

## Usage Example ②
Specify logical expression as parameter
### Formula

### Parameters

### Calculation Result
