## sem:invalid Server Expression

A server expression that returns a value of (or implicitly castable to) the sem:invalid server type. For all server types, see the Server Expression Type Hierarchy.

### Cast With

Server Return Type | Server Function | Java Doc
--- | --- | ---
sem:invalid | sem:invalid(xs:string string, sem:iri datatype) | java

### Parameter Of

Server Return Type | Server Function | Java Doc | Server Doc
--- | --- | --- | ---
sem:iri | sem:invalid-datatype(sem:invalid val) | java | server