# operator !=(WorldUnmanaged, WorldUnmanaged)

> Whether two references point to different worlds.

## Definition

* **Type:** Operator
* **Namespace:** [Unity.Entities](/engine/7000.0/script-reference/unity/entities.md)
* **Assembly:** UnityEngine.EntitiesModule

```csharp
public static bool operator !=(WorldUnmanaged lhs, WorldUnmanaged rhs)
```

### Parameters

**** (\[WorldUnmanaged]\(/engine/7000.0/script-reference/unity/entities/worldunmanaged)): The first world.**** (\[WorldUnmanaged]\(/engine/7000.0/script-reference/unity/entities/worldunmanaged)): The second world.

### Returns

| Type                                                          | Description                                      |
| ------------------------------------------------------------- | ------------------------------------------------ |
| [bool](https://learn.microsoft.com/dotnet/api/system.boolean) | True if the sequence numbers or versions differ. |