Despite his well‐known deductivism, in his early (unpublished) writings, Popper held an inductivist position. Up to 1929 epistemology entered Popper's reflections only as far as the problem was that of the justification of the scientific character of these fields of research. However, in that year, while surveying the history of non‐Euclidean geometries, Popper explicitly discussed the cognitive status of geometry without referring to psycho‐pedagogical aspects, thus turning from cognitive psychology to the logic and methodology of science. As a consequence of (...) his reflections on the problematic relationship between geometrical‐mathematical constructions and physical reality Popper was able to get over a too direct notion of such a relationship, cast doubts on inductive inference and started conceiving in a new (strictly non‐inductivist) manner the relationship between theoretical and observational propositions. (shrink)

The paper shows how Karl Popper's critique of 'historicism' is permeated by psychoanalytic discourse regardless of his critique that psychoanalysis is one of the exemplars of pseudoscience. Early on, when he was formulating his philosophy of science, Popper had an apparently stringent criterion, viz. falsifiablity, and painstaking analysis. The central argument of this paper is that despite his representation of psychoanalysis as the principal illustration of the category he dubs as 'pseudoscience', Popper's analysis has been infused with psychoanalysis when it (...) comes to his social and political philosophy. Besides, not only was his interpretation of the proponents of 'historicism' and the 'closed' society mediated by the very concepts of a field which he indicted as pseudoscientific but also he frequently slipped into vacuous and unverifiable accusations forgetting the jurisdiction he formerly accorded to empirical adequacy and logical consistency when examining and assessing theories. (shrink)

Conditions for philosophy of science in the Netherlands are not optimal. The climate of opinion in Dutch philosophy is unsympathetic to the sciences, partly because of the influence of theology. Dutch universities offer no taught graduate programmes in philosophy of science, which would provide an entry route for science graduates. A great deal of Dutch research in philosophy of science is affected by an exegetical attitude, which fosters the interpretation and evaluation of other writers rather than the development of original (...) theories. Doctoral candidates in particular should be trained to greater originality and assertiveness. Nonetheless, much good research in philosophy of science is conducted in the Netherlands, both in philosophy faculties and in institutes dedicated to the foundations of the special sciences. Distinguished work is done also in the neighbouring disciplines of logic, history of science, and social studies of science. (shrink)

The early research of Karl Popper both in psychology and in philosophy of science is described; its basis for his later breakthroughs in the philosophy of science is explained. His debt to Otto Selz’s thought psychology is thereby detailed. Otto Selz’s philosophy of science is then explained, and its conflict with Popper’s early as well as his later views is portrayed. These studies of the conflicting views of Popper’s early views and Selz’s philosophy of science provide the basis for demonstrating (...) the mistakes that Michel ter Hark has made in claiming that the alleged originality of Popper’s views occurred only in the 1970s and are little more than a rehash of Selz’s alleged evolutionary epistemology. (shrink)