A language is decidable if its strings are [[computable set]]. In other words, there is a [[Turing machine]] called decider which accepts strings from the language and rejects all others, never ...

Here we have to decide whether DFA accepts a particular string w using some Turing machine. This is called an acceptance problem of DFA. To prove this we can construct a deterministic TM D_A_DFA which ...

Abstract: A class of languages C is perfect if it is closed under Boolean operations and the emptiness problem is decidable. Perfect language classes are the basis for the automata-theoretic approach ...

Utrecht Institute of Linguistics OTS (UIL-OTS), Utrecht University, Utrecht, Netherlands Language is commonly thought of as a culturally evolved system of communication rather than a computational ...