# Not (Logic) Menu Path : **Operator > Logic > Not** The **Not** Operator takes a single input and outputs the result of a logical *not* operation. The result of **Not** A is `true` if A is `false`. This Operator is equivalent to the C# `!` operator. ## Operator properties | **Input** | **Type** | **Description** | | --------- | -------- | ------------------------------------------------------------ | | **A** | bool | The value this Operator evaluates. If this is `false`, then **o** is `true`. | | **Output** | **Type** | **Description** | | ---------- | -------- | ------------------------------------------------------------ | | **o** | bool | If **A** `true`, this value is `false`. Otherwise, if **A** is `false` this value is `true`. |