‘Sollen impliziert Können’ und der entscheidungstheoretische Kontext

Abstract

Hans Albert's famous principle ,Sollen impliziert K6nnen', which should bridge the two disparate domains of normative decisions and empirical informations is a constitutive one of the Popperian metaethical philosophy of social relations.At first we have to clarify the logical character of the principle with the help of a ,logic of presupposition' resulted from Rescher, Bunge and Stegmt~ller.The next step is to outline the decision theory under risk and to develop the traditional basic model of this approach.In showing that the normative decision theory (under risk) annul the regulative principle of empirical realization it will be discussed a reconcilation between the decision theory and the metaethical principle mentioned above, which involves a new interpretation of the decision theory-.This understanding lies between the approach of a normative decision theory and the approach of a pure empirical decision theory: the former is for example related with H. A. Simon and the later with W. Stegmt~ller.It is a decision theory which is compatible with a metaethical philosophy of social relations in the spirit of the critical rationalism. 1 Albert unterscheidet Normen zur Regulierung des Handelns und Normeu zur Regulierung yon Stellungnahmen, = Ethik und Meta-Ethik = 145, FuBnote 44 und 45. 2 Die Trennung in Meta-und Objektsprache ist ill jeder Einfiihrung in die Logik und Vv'issenschaftstheorie dargesteltt, z.B. Essler =Logik= 16. Zeitschrift ftir allgemeine Wissenschaftstheorie VI/2 {1975)