On two-level grammars

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DOI10.1080/00207168408803414zbMath0542.68062OpenAlexW2019693135MaRDI QIDQ3330533

Alexander Ollongren, J. M. De Graaf

Publication date: 1984

Published in: International Journal of Computer Mathematics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1080/00207168408803414

zbMATH Keywords

families of languages recursively enumerable languages two-level grammar replacement rule hyper rules hyper level meta level meta rules

Mathematics Subject Classification ID

Formal languages and automata (68Q45)

Cites Work

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