The Normative Force of the Factual: Legal Philosophy Between Is and Ought

Georg Jellinek's theory of the two sides of the state ("Zwei-Seiten-Lehre des Staates") /Oliver Lepsius --Sein and Sollen, "Is" and "ought" and the problem of normativity in Hans Kelsen /Nicoletta Bersier Ladavac --Law as fact and norm : Georg Jellinek and the dual nature of law /Matthias Klatt --The 'normative force of the factual' : a positivist's panegyric /Christoph Bezemek --The effectiveness-legitimacy conundrum in the international law of state formation /Andreas Th. Müller --How the facts enter into the law /Clemens Jabloner --The fact of norms /Michael Potacs --Ex facto jus oritur /Alexander Somek --The many forces in law : rational, physical and psychological coercion /Jorge Emilio Núñez --Legal facts and reasons for action : between deflationary and robust conceptions of law's reason-giving capacity /Noam Gur --On the alleged problem of legal normativity /Frederick Schauer.