We discuss $(\Gamma)$ETOL-systems, that are ETOL-systems provided with some control on the application sequence of the tables. More, precisely, the control consists of a language over the indices of the tables of the ETOL-system ($\Gamma$ denotes a family of control languages). We show some basic propereties of $(\Gamma)$ETOL-systems and give the restrictions on the family $\Gamma$ by which the family of $(\Gamma)$ETOL-languages obtains some closure properties.
|Place of Publication||Enschede|
|Publisher||University of Twente, Department of Applied Mathematics|
|Number of pages||36|
|Publication status||Published - 1975|
- HMI-SLT: Speech and Language Technology