Turing-recognizable language
Not what you're looking for?
Let A be a turing-recognizable language consisting of descriptions of Turing machines, {M1, M2,...}, where every Mi is a decider. Prove that some decidable language D is not decided by any decider Mi whose description appears in A. (Hint: You may find it helpful to consider an enumerator for A.)
Purchase this Solution
Solution Summary
Turing-recognizable language is described.
Solution Preview
This problem uses the powerful method of diagonalization developed by George Cantor.
To understand diagonalisation better, read the following after reading the proof attached. Also try to read chapter 4 of ...
Purchase this Solution
Free BrainMass Quizzes
Basic UNIX commands
Use this quiz to check your knowledge of a few common UNIX commands. The quiz covers some of the most essential UNIX commands and their basic usage. If you can pass this quiz then you are clearly on your way to becoming an effective UNIX command line user.
Basic Computer Terms
We use many basic terms like bit, pixel in our usual conversations about computers. Are we aware of what these mean? This little quiz is an attempt towards discovering that.
C# variables and classes
This quiz contains questions about C# classes and variables.
Inserting and deleting in a linked list
This quiz tests your understanding of how to insert and delete elements in a linked list. Understanding of the use of linked lists, and the related performance aspects, is an important fundamental skill of computer science data structures.
C++ Operators
This quiz tests a student's knowledge about C++ operators.