On 12 Jun 2007, at 14:12, Fred Youhanaie wrote: > http://www.cs.chalmers.se/~coquand/AUTOMATA/brzozowski.pdf Oh cool, thanks. > If you are interested in this type of material, then it is > certainly worth joining ACM and subscribing to the digital library. Yup, might just do that. Thanks. -- Andy Armstrong, hexten.net