| diagram | ![]()  | 
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| namespace | http://www.opengis.net/gml | ||||
| type | xs:boolean | ||||
| properties | 
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| used by | 
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| annotation | 
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| source | <xs:element name="Boolean" type="boolean"> <xs:annotation> <xs:documentation>A value from two-valued logic, using the XML Schema boolean type. An instance may take the values {true, false, 1, 0}.</xs:documentation> </xs:annotation> </xs:element>  |