Slot: equals_expression
the value of the slot must equal the value of the evaluated expression
URI: [linkml:equals_expression](https://w3id.org/linkml/equals_expression)
## Inheritance
* [list_value_specification_constant](list_value_specification_constant.md)
* **equals_expression**
## Applicable Classes
| Name | Description | Modifies Slot |
| --- | --- | --- |
| [SlotExpression](SlotExpression.md) | an expression that constrains the range of values a slot can take | no |
| [AnonymousSlotExpression](AnonymousSlotExpression.md) | | no |
| [SlotDefinition](SlotDefinition.md) | an element that describes how instances are related to other instances | no |
## Properties
### Type and Range
| Property | Value |
| --- | --- |
| Range | [String](String.md) |
| Domain Of | [SlotExpression](SlotExpression.md) |
### Cardinality and Requirements
| Property | Value |
| --- | --- |
### Slot Characteristics
| Property | Value |
| --- | --- |
| Inherited | Yes |
## In Subsets
* [SpecificationSubset](SpecificationSubset.md)
## Comments
* for example, a 'length' slot may have an equals_expression with value '(end-start)+1'
## See Also
* [https://linkml.io/linkml/developers/inference.html](https://linkml.io/linkml/developers/inference.html)
* [https://linkml.io/linkml/schemas/advanced.html#equals-expression](https://linkml.io/linkml/schemas/advanced.html#equals-expression)
## Identifier and Mapping Information
### Schema Source
* from schema: https://w3id.org/linkml/meta
## Mappings
| Mapping Type | Mapped Value |
| --- | --- |
| self | linkml:equals_expression |
| native | linkml:equals_expression |
## LinkML Source
name: equals_expression
description: the value of the slot must equal the value of the evaluated expression
comments:
- for example, a 'length' slot may have an equals_expression with value '(end-start)+1'
in_subset:
- SpecificationSubset
from_schema: https://w3id.org/linkml/meta
see_also:
- https://linkml.io/linkml/developers/inference.html
- https://linkml.io/linkml/schemas/advanced.html#equals-expression
rank: 1000
is_a: list_value_specification_constant
inherited: true
domain_of:
- slot_expression
range: string