Festschrift for Andreas Herzig on the Occasion of his 65th Birthday. Essays in Honor of Andi

<p></p><p><em>The original contributions contained in this book are to celebrate the 65th birthday of Andreas Herzig a well-known logician and computer scientist working at the IRIT laboratory in Toulouse. They have been written by friends colleagues and students of Andreas. He is a brilliant researcher and one of the main founding members of the Toulouse school of non-classical logics. That said Andreas is also well-known in the logic and AI community for his generosity kindness friendliness and many other human qualities. </em></p><p><em>Happy Birthday Andreas!</em></p>