## Text Encoding Initiative

### The XML Version of the TEI Guidelines

# %om.RR

`om.RR` | (omissibility indicator (XML version)) A dummy component of an XML element declaration, retained for SGML compatibility.
Note | Omissibility is not allowed for XML element declarations. This parameter entity therefore has a non-null value only when an SGML DTD is requested.
Declaration | `<!ENTITY % om.RR '' >`
See further | 3.8.4 Generation of an XML DTD

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