---
title: "!(_:)"
framework: realitykit
role: symbol
role_heading: Operator
path: "realitykit/!(_:)"
---

# !(_:)

Returns a predicate which evaluates to true if operand evaluates to false.

## Declaration

```swift
func ! <Value>(operand: QueryPredicate<Value>) -> QueryPredicate<Value>
```

## See Also

### Comparing predicates

- [&&(_:_:)](realitykit/&&(_:_:).md)
- [||(_:_:)](realitykit/__(_:_:).md)