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- B. Jack Copeland
- Minds and Machines
- 2002

Accelerating Turing machines are Turing machines of a sort able to perform tasks that are commonly regarded as impossible for Turing machines. For example, they can determine whether or not the… (More)

- B. Jack Copeland
- 1998

Accelerated Turing machines are Turing machines that perform tasks commonly regarded as impossible, such as computing the halting function. The existence of these notional machines has obvious… (More)

- B. Jack Copeland
- Synthese
- 1996

To compute is to execute an algorithm. More precisely, to say that a device or organ computes is to say that there exists a modelling relationship of a certain kind between it and a formal… (More)

- B. Jack Copeland
- 1998

In his PhD thesis (1938) Turing introduced what he described as 'a new kind of machine'. He called these 'O-machines'. The present paper employs Turing's concept against a number of currently… (More)

- B. Jack Copeland
- 1997

A myth has arisen concerning Turing's paper of 1936, namely that Turing set forth a fundamental principle concerning the limits of what can be computed by machine a myth that has passed into… (More)

- B. Jack Copeland
- 1998

- B. Jack Copeland
- Machine Intelligence 15
- 1995

- B. Jack Copeland
- 2006