Boolean
search: boost: 1.0 ---# Type: Boolean
A binary (true or false) value
URI: [xsd:boolean](http://www.w3.org/2001/XMLSchema#boolean)
## Type Properties
| Property | Value |
| --- | --- |
| Base | `Bool` |
| Type URI | [xsd:boolean](http://www.w3.org/2001/XMLSchema#boolean) |
| Representation | `bool` |
## Notes
* If you are authoring schemas in LinkML YAML, the type is referenced with the lower case "boolean".
## Identifier and Mapping Information
### Schema Source
* from schema: https://w3id.org/linkml/meta
## Mappings
| Mapping Type | Mapped Value |
| --- | --- |
| self | xsd:boolean |
| native | linkml:boolean |
| exact | schema:Boolean |