---
title: "!=(_:_:)"
framework: swift
role: symbol
role_heading: Operator
path: "swift/set/!=(_:_:)"
---

# !=(_:_:)

Returns a Boolean value indicating whether two values are not equal.

## Declaration

```swift
static func != (lhs: borrowing Self, rhs: borrowing Self) -> Bool
```

## Parameters

- `lhs`: A value to compare.
- `rhs`: Another value to compare.

## Discussion

Discussion Inequality is the inverse of equality. For any values a and b, a != b implies that a == b is false. This is the default implementation of the not-equal-to operator (!=) for any type that conforms to Equatable.

## See Also

### Comparing Sets

- [==(_:_:)](swift/set/==(_:_:).md)
- [isSubset(of:)](swift/set/issubset(of:)-1d7pp.md)
- [isSubset(of:)](swift/set/issubset(of:)-6qyo5.md)
- [isStrictSubset(of:)](swift/set/isstrictsubset(of:)-96vc3.md)
- [isStrictSubset(of:)](swift/set/isstrictsubset(of:)-787sx.md)
- [isSuperset(of:)](swift/set/issuperset(of:)-9iz62.md)
- [isSuperset(of:)](swift/set/issuperset(of:)-90hri.md)
- [isStrictSuperset(of:)](swift/set/isstrictsuperset(of:)-4d27m.md)
- [isStrictSuperset(of:)](swift/set/isstrictsuperset(of:)-58ejg.md)
- [isDisjoint(with:)](swift/set/isdisjoint(with:)-8ngmk.md)
- [isDisjoint(with:)](swift/set/isdisjoint(with:)-2onid.md)