Le 14-juil.-06, à 14:34, Bruno Marchal a écrit :
> Hi Quentin, Tom and List,
>
>
> Of course, N is the set of finite positive integers:
>
> N = {0, 1, 2, 3, ...}.
>
> An infinite set A is countable or enumerable if there is a computable
> bijection between A and N.
Please suppress the "computable" in that last sentence.
Bruno
> ~---
http://iridia.ulb.ac.be/~marchal/
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