Vygotsky and Spinoza

The article analyzes Lev Vygotsky’s attempts to utilize Spinoza’s philosophical ideas in solving the methodological crisis of psychology in the 1920s and 1930s. Vygotsky had a manuscript, Uchenie ob emocijakh, where he scrutinized the doctrines of the effects on Descartes and Spinoza. Whilst Descartes’ doctrine built on a dualistic soul versus body premise, Spinoza’s starting point was monistic. Despite his clear sympathies for Spinoza’s solution, which according to him was more compatible with Marxism, too, Vygotsky did not manage to finish his study. One may, indeed, doubt whether Spinoza was able to deliver the decisive key for the solution of the dualism problem, since his philosophy built on metaphysical postulates that were unacceptable to Vygotsky.

Dialectical logic or logical dialectics? The Polish discussion on the principle of non-contradiction (1946–1957)

The discussion on the principle of non-contradiction (1946–1957) between Marxist and non-Marxist philosophers was one of the major philosophical discussions in Polish philosophy of this period. In my text, I carefully reconstruct this discussion and outline its relation to Soviet debates on the subject. I show that the change in Schaff’s position happened in the early 1950s under the combined influence of the Lvov–Warsaw School and the changes in the official Soviet position regarding formal logic. I discuss the aftermath following Schaff’s change in attitude towards the analytic tradition for the development of Polish philosophy, as well as the critique of this change by Jarosław Ładosz. In my reconstruction of the latter, I focus on the problem of the historical development of science. I refer to Ilyenkov’s critique of Schaff, opposing synchronic (“positivist”) and diachronic (“dialectical”) concepts of knowledge. As I argue, these opposing concepts of science can be seen as a genuine issue at stake in the Polish discussion as well, especially in the polemic between Schaff and Ładosz.

Józef M. Bocheński and the categorial reconstruction of concepts in the Lvov–Warsaw School

In this article, Józef M. Bocheński is presented as a representative of the methodological tendencies of the Lvov–Warsaw School (LWS). Special attention is given to the reconstructive analysis of concepts, the categorial trait of this procedure, and examples of its application by Bocheński. First, some historical and substantial arguments are presented for including Bocheński in the LWS. Secondly, the procedure of the reconstruction of concepts applied in the LWS is characterized. Then the attention turns to the categorial trait of the analysis as indicated by Bocheński. Finally, two examples of Bocheński’s categorial reconstruction of concepts are presented. The article ends with a recapitulation and general remarks.

The correspondence between Józef M. Bocheński (1902–1995) and Heinrich Scholz (1946–1954)

As is well known, Heinrich Scholz and his academic society maintained good scientific contacts with Polish logicians before, during, and after the Second World War. My interest here is to examine the details of their collaboration by presenting Scholz’s unpublished correspondence with Fr. Józef M. Bocheński. The following topics are discussed here: Polish logicians who survived the war and their current place of work; reorganization of the scholarly environment, didactic activities, duties, scholarly trips; current research topics, prospects for post-war publications, and future publishing plans; information about Jan Łukasiewicz, Bolesław Sobociński, and Joachim Metallmann; personal matters.