# Slot: is_functional


_Maps to exactly one thing_



URI: [xodiff:is_functional](https://w3id.org/oak/cross-ontology-diff/is_functional)



<!-- no inheritance hierarchy -->







## Mixin Usage

| mixed into | description | range | domain |
| --- | --- | --- | --- |
| [left_subject_is_functional](left_subject_is_functional.md) | True if a subject mapping is present, and maps uniquely within the same ontol... | None |  |
| [left_object_is_functional](left_object_is_functional.md) | True if an object mapping is present, and maps uniquely within the same ontol... | None |  |



## Properties

* Range: [Boolean](Boolean.md)

* Mixin: True





## Identifier and Mapping Information







### Schema Source


* from schema: https://w3id.org/oak/cross-ontology-diff




## LinkML Source

<details>
```yaml
name: is_functional
description: Maps to exactly one thing
from_schema: https://w3id.org/oak/cross-ontology-diff
rank: 1000
mixin: true
alias: is_functional
range: boolean

```
</details>