The Diagonal Method and Hypercomputation.

The diagonal method is often used to show that Turing machines cannot solve their own halting problem. There have been several recent attempts to show that this method also exposes either contradiction or arbitrariness in other theoretical models of computation which claim to be able to solve the ha...

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Detalles Bibliográficos
Publicado en:British Journal for the Philosophy of Science Vol. 56; no. 1; pp. 147 - 157
Autores principales: Ord, Toby, Kieu, Tien D.
Formato: Artículo
Publicado: University of Chicago Press Mar2005
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Acceso en línea:Ver este registro en EBSCOhost
Descripción
Sumario:The diagonal method is often used to show that Turing machines cannot solve their own halting problem. There have been several recent attempts to show that this method also exposes either contradiction or arbitrariness in other theoretical models of computation which claim to be able to solve the halting problem for Turing machines. We show that such arguments are flawed—a contradiction only occurs if a type of machine can compute its own diagonal function. We then demonstrate why such a situation does not occur for the methods of hypercomputation under attack, and why it is unlikely to occur for any other serious methods.