#### IfcBoolean

Natural language names

##### Semantic definitions at the type

Type definition

A defined data type of simple data type Boolean. (Required since a select type, i.e. IfcSimpleValue, cannot include directly simple types in its select list). A boolean type can have value TRUE or FALSE.

Type: BOOLEAN

> HISTORY New type in IFC Release 1.5.1.

##### Formal representations

XSD Specification
`<xs:simpleType name="IfcBoolean">
<xs:restriction base="xs:boolean"/>
</xs:simpleType>
<xs:element name="IfcBoolean-wrapper" nillable="true">
<xs:complexType>
<xs:simpleContent>
<xs:extension base="ifc:IfcBoolean">
<xs:attributeGroup ref="ifc:instanceAttributes"/>
</xs:extension>
</xs:simpleContent>
</xs:complexType>
</xs:element>
`
EXPRESS Specification
`TYPE IfcBoolean = BOOLEAN;
END_TYPE;

EXPRESS-G diagram

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