Prove that l is decidable if and only if both l and l are recognizable. 3 as discussed above.
Prove that l is decidable if and only if both l and l are recognizable. On the other hand, how could we possibly establish prove that some decision problem is undecidable This is one of the questions we will address in the course. Mar 8, 2011 · A language is Recognizable iff there is a Turing Machine which will halt and accept only the strings in that language and for strings not in the language, the TM either rejects, or does not halt at all. But not necessarily vice versa. . Obviously. Decidable and recognizable languages Theorem 1: If M decides L then M recognizes L. 3 as discussed above. In fact, these two notions define different language classes: Apr 24, 2021 · This machine is a decider for and therefore is decidable. We say L is Turing-recognizable (or simply recognizable) if there is a TM M such that L = L(M). Definition: A language is called semi-decidable (or recognizable) if there exists an algorithm that accepts a given string if and only if the string belongs to that language. gor9a lgown 3i8a si2jwp 8hue yhcr93c rsql k8olv cgmk ntya
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