The very first paper on Z  was published in 1980 (at the time, the name Z was not “invented”), then the book on the B method  was published in 1996, and, finally, the book on Event-B  was published in 2010. So, 30 years separate Z from Event-B. It is thus clear that I spent a significant time of my scientific professional life working with the same kind of subject in mind, roughly speaking specification languages. I do not know whether this kind of addiction is good or bad, but what I know is that I enjoyed it a lot.
J'ai vécu à St-Yrieix-la-Perche jusqu'en Terminale. Nantais depuis 1971. Ancien prof à l'université de Nantes, Arédien aux beaux jours.Cycliste urbain quotidien. Milite pour le retour des goujons dans les eaux limousines
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