Alternative Approaches to Computability
In the previous chapters we have developed a theory of computability based on while-programs. The legitimacy of this programming language approach has rested on the belief, embodied in Church’s Thesis, that the class of computable functions is model invariant: The while-program computable functions include the function classes that are definable by any other system, so long as that system matches our informal notion of algorithmic specification.
KeywordsFermat Alan laSb
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