Recursive and Recursive Enumerable Languages in Theory of Computation | GATECSE | TOC скачать в хорошем качестве

Recursive and Recursive Enumerable Languages in Theory of Computation | GATECSE | TOC

#recursiveenumerablelanguage, #recursivelanguage, #gatecse, #thegatehub Contact Datils (You can follow me at) Instagram:   / ahmadshoebkhan   LinkedIn:   / ahmad-shoeb-957b6364   Facebook:   / ahmadshoebkhan   Watch Complete Playlists: Data Structures:    • Introduction to Data Structures || Basics ...   Theory of Computation:    • Introduction to Theory of Computation || G...   Compiler Design:    • Ambiguous Grammar || Introduction to Ambig...   Design and Analysis of Algorithms:    • Design and Analysis of Algorithms   Let us understand the concept of recursive language before learning about the recursively enumerable language in the theory of computation (TOC). Recursive Language A language L is recursive (decidable) if L is the set of strings accepted by some Turing Machine (TM) that halts on every input. Example When a Turing machine reaches a final state, it halts. We can also say that a Turing machine M halts when M reaches a state q and a current symbol ‘a’ to be scanned so that δ(q, a) is undefined. There are TMs that never halt on some inputs in any one of these ways, So we make a distinction between the languages accepted by a TM that halts on all input strings and a TM that never halts on some input strings. Recursive Enumerable Language A language L is recursively enumerable if L is the set of strings accepted by some TM. If L is a recursive enumerable language then − If w ∈ L then a TM halts in a final state, If w ∉ L then a TM halts in a non-final state or loops forever. If L is a recursive language then − If w ∈ L then a TM halts in a final state, If w ∉ L then TM halts in a non-final state. Recursive Languages are also recursive enumerable Proof − If L is a recursive then there is TM which decides a member in language then − M accepts x if x is in language L. M rejects on x if x is not in language L. According to the definition, M can recognize the strings in language that are accepted on those strings. recursive and recursively enumerable languages in toc recursively enumerable languages in turing machine recursively enumerable language in toc recursive enumerable language recursive enumerable language in toc turing machine languages Language accepted by turing machine What is the difference between recursive and recursive enumerable language? What do you mean by recursive and recursively enumerable languages? Is every recursive language also recursively enumerable? Why are recursive languages a proper subset of recursive enumerable languages? recursive and recursively enumerable languages tutorialspoint properties of recursive and recursively enumerable languages pdf recursively enumerable languages are closed under union recursively enumerable languages are closed under mcq the class of recursively enumerable language is known as recursive languages are closed under complementation a recursively enumerable language l can be recursive if recursive language example