Reserved words0

The reserved words of EDMexpressX^ are the keywords, and the names of built-in constants, functions, and procedures. All reserved words in the EXPRESS language are also reserved words in the EDMexpressX^ language. It is illegal to use a reserved word as an identifier in an EDMexpressX^ schema.
The EDMexpressX^ language has a set of built-in functions and constants whose names are not reserved words. These names can be used within an EDMexpressX^ mapping schema as user defined identifiers, i.e., these names can be redefined.