---
title: "build_Negation(_:)"
framework: foundation
role: symbol
role_heading: Type Method
path: "foundation/predicateexpressions/build_negation(_:)"
---

# build_Negation(_:)

## Declaration

```swift
static func build_Negation<T>(_ wrapped: T) -> PredicateExpressions.Negation<T> where T : PredicateExpression, T.Output == Bool
```