Slot: expr
URI: [linkmlmap:expr](https://w3id.org/linkml/transformer/expr)
## Applicable Classes
| Name | Description | Modifies Slot |
| --- | --- | --- |
| [SlotDerivation](SlotDerivation.md) | A specification of how to derive the value of a target slot from a source slo... | no |
| [EnumDerivation](EnumDerivation.md) | A specification of how to derive the value of a target enum from a source enu... | no |
| [PermissibleValueDerivation](PermissibleValueDerivation.md) | A specification of how to derive the value of a PV from a source enum | no |
## Properties
### Type and Range
| Property | Value |
| --- | --- |
| Range | NONE |
| Domain Of | [SlotDerivation](SlotDerivation.md), [EnumDerivation](EnumDerivation.md), [PermissibleValueDerivation](PermissibleValueDerivation.md) |
### Cardinality and Requirements
| Property | Value |
| --- | --- |
## Identifier and Mapping Information
## Mappings
| Mapping Type | Mapped Value |
| --- | --- |
| self | linkmlmap:expr |
| native | linkmlmap:expr |
## LinkML Source
name: expr
domain_of:
- SlotDerivation
- EnumDerivation
- PermissibleValueDerivation