Non-classical propositional calculi in relation to methodological patterns of scientific investigation

Summary Modern methodology furnishes two partly competitive and partly complementary views on structure of the development of scientific investigation. According to the first view the development of science consists in enlargement of the set of empirical theorems; according to the other it consists, rather, in the narrowing of the set of possible theoretical hypotheses. A particular kind of assertion is associated with each of these views. The first is associated with the relation of assertion expressed in the statement: “the state α of scientific investigationB forces us to accept the statement Τ”. The other view is associated with the relation of assertion expressed in the statement: “the state α of scientific investigationB admits the acceptance of the statement Τ”. Under a suitable definition of forcing we obtain the conclusion that intuitionistic logic is the class of only those formulas which we are forced to accept by every state of every scientific investigation. The notion of admission under a certain definition analogically leads to intuitionistic logic; on the other hand in the case of another, more natural definition, it leads to justification of a certain system of strict implication which is stronger than Lewis’ system S4 and which overlaps system S5. It can be said that assuming quite a natural definition of admission this system contains only those formulas the acceptance of which is admitted by every state of every scientific investigation.     

Amalia X: dialogical sequence analysis as a method in theory-based single case research in psychoanalysis

In this article, Dialogical sequence analysis (DSA) is introduced as a method in theory-based single case research. The structure of article is as follows: first, we will describe briefly the historical background of single case studies and their position as the foundation of psychoanalytic knowledge formation. Secondly, we will describe through Amalia X’s case how one psychoanalytic ‘specimen case’ has been used as a cornerstone for a comprehensive psychoanalytic process research model, the so called ‘Ulm model’. Amalia X is one of the most studied single cases internationally also outside psychoanalytic process study field. Thirdly, we will introduce the central theory and practice of DSA. Fourthly, in the last section of our article, we will show in practice how DSA can be used in the analysis of Amalia’s dream in the session 152.     

Communicative psychoanalysis: Contributions to clinical practice and the development of a science of psychoanalysis

Robert Langs' communicative approach to psychoanalysis has lead to new clinical insights and to a promising line of quantitative research. Fundamental concepts of the communicative approach are explained and illustrated with a clinical example. Characteristics of the approach, which distinguish it from other modern, interactive analytic theories are discussed; as well as a critical clinical insight derived from the communicative approach. The approach's unique contributions to the development of a science of psychoanalysis are explained. The advantages and problems of the communicative method are also discussed throughout the paper.