LIPIcs - Leibniz International Proceedings in Informatics. 6th International Conference on Formal Structures for Computation and Deduction (FSCD 2021)
Doi
Abstract
We study the implicit computational complexity of constructor term rewriting systems where every function and constructor symbol is unary or nullary. Surprisingly, adding simple and natural constraints to rule formation yields classes of systems that accept exactly the four classes of languages in the Chomsky hierarchy