Anna Brożek

The article presents interpersonal relations and mutual influences between German logician Heinrich Scholz and Polish scholars, first of all Jan Łukasiewicz. The background for presenting these relationships consists of reflections on the development of logic in Poland and various conceptions of how to apply logic to philosophical issues. Firstly, Jan Łukasiewicz’s program of logicisation of philosophy and his search for allies is presented. Secondly, the forms of cooperation between Łukasiewicz and Scholz, as well as contacts between the latter and other Polish scholars are sketched. Finally, forms of Scholz’s help to Polish friends during the tumultuous period of World War II are examined. The article provides also some reflections on the approach to logic in various European centers of analytic philosophy and historical comments on the continuity of philosophical and logical schools.

The volume contains almost thirty papers by Kazimierz Twardowski, the founder of the Lvov-Warsaw School. The papers are published in English for the first time. The papers concern fundamental problems of philosophy: the methods of philosophizing, the boundary of psychology and semiotics, the conceptual apparatus of metaphysics, ethical skepticism, the question of free will and ethical obligation, the aesthetics of music and so on. The systematic considerations are complemented by concise but excellent sketches of the philosophical views of Socrates, Aquinas, Leibniz, Spencer, Nietzsche, and Bergson.

The main intuitions underlying presented analyses may be expressed as follows. Any question corresponds to a certain incomplete image of situation – an image with a gap – and expresses the will of filling this gap. For example, the question "Who loves Isolde?" refers to the image of the situation in which the relation of love occurs; Isolde is the second argument of this relation, and the first argument of it is "empty". Asking "Who loves Isolde?" we express our desire of filling the gap. To identify correctly ontic correlates of questions we ought to accept the view that semantic function of questions consists in indicate a certain image of situation and questioner's attitude to this image. On the basis of these assumptions, semantic functions of questions as well as many other important erotetic notions are explicated. Analyses are illustrated by fragments from Roman Ingarden's famous work "Essential questions" ("Essentiale Fragen").

In the paper, an analysis of concepts of category and categorization is presented. The point of departure of this analysis is J. Jadacki’s explication of the concept of category. Weak points of his explication are indicated and then a redefinition of “category” is prepared; it is based on the concept of determining properties.Introducing the concept of categorization, the author distinguishes two kinds of categorizations: natural and methodological ones. In this context, the problem of methodological reduction is briefly discussed.

Maria Kokoszyńska-Lutmanowa was one of the most outstanding female representatives of the Lvov-Warsaw School. After achieving her PhD in philosophy under Kazimierz Twardowski’s supervision, she was Kazimierz Ajdukiewicz’s assistant. She was also influenced by Alfred Tarski whose results in semantics she analyzed and popularized. After World War II, she got the chair of logic in University of Wrocław and she organized studies in logic in this academic center. In the 1930s, Kokoszyńska kept in contact with members of the Vienna Circle and became a kind of connecting factor between Polish logicians and the Viennese group. In Poland, she presented the views of members of the Vienna Circle. In Vienna, she emphasized the results of her Polish colleagues. In the present paper, some of Kokoszyńska’s results connected with the matters discussed in the Vienna Circle are presented, namely with the problem of metaphysics, the status of logic and the idea of unity of science.

We assume that the imperative reasoning is a reasoning containing at least one step which is an imperative (or rather its content). At the same time, we understand the term "imperative" as a synonym of "imperative sentence". We assume that in its main usage, imperatives express a certain volitional act: namely, a will of realizing a certain state of affairs. In our opinion, such characterization is related to the contents of imperatives; we call these contents "prescriptions", remembering that in untypical usages prescriptions are not expressed by imperatives. Traditional approach to the processes of reasoning takes into account only these mental processes steps of which are declaratives or declarative sentences (or rather their contents – i.e. judgments). If processes of imperative reasoning are to belong to the range of the term "reasoning", the notion of reasoning has to receive a new, enlarging explication. We propose such an explication in the paper.

The first part of the article contains a logical reconstruction and a methodological analysis of some aspects of the famous Władysław Witiwcki’s work “Faith of Enlightened”. In particular, the classifications of believers and the principles of these classifications are analyzed; methodological errors committed by Witwicki are indicated. In the second part of the text, Witwicki's distinctions are illustrated by attitudes towards God and faith represented by four representatives of the Lvov-Warsaw School: Kazimierz Twardowski, Jan Łukasiewicz, Tadeusz Kotarbiński, and Józef Maria Bocheński.

Pojęcia były zawsze jednym z najważniejszych obiektów badań filozoficznych. Szczególnie duży wkład do teorii analizy pojęć wnieśli przedstawiciele polskiej gałęzi XX-wiecznej filozofii analitycznej, czyli Szkoły Lwowsko-Warszawskiej. Badaniom filozoficznym w tej szkole przyświecał postulat jasności myślenia i mowy. Analiza i doskonalenie pojęć oraz języka filozoficznego jako ich nośnika były naturalnym wyrazem programu metodologicznego, jaki formacji tej nadał jej założyciel, Kazimierz Twardowski. W artykule przedstawiona jest procedura rekonstrukcji pojęć, stosowana powszechnie w szkole Twardowskiego. Okazuje się, że pomimo głębokich niekiedy różnic między poszczególnymi przedstawicielami SLW da się wskazać pewne rysy wspólne prowadzonych w szkole badań nad pojęciami. Są to przede wszystkim moment kategorialny i moment konstrukcyjny, ze względu na który całą procedurę najlepiej określić właśnie jako „rekonstrukcję”. Bliżej zostały omówione dwa przykłady rekonstrukcji pojęć: praca Jana Łukasiewicza dotycząca pojęcia przyczyny oraz wyniki Alfreda Tarskiego dotyczące pojęcia prawdy.

The article presents the method of analytic description as applied in the theory of questions. This procedure, described by Tadeusz Czeżowski and broadly used in the Lvov-Warsaw School, is applied first of all at the pre-theoretic stage of research, namely to construct the conceptual scheme of a given discipline and to classify the objects of investigations. Ajdukiewicz’s theory of questions and its developments, in particular recent works of Adam Jonkisz, are presented as examples of the applications of this method. Analytic description is contrasted with other procedures, which differ from it with respect to the empirical basis and theoretical perspective. On this background, differences between various currents in erotetic research as well as the sources of misunderstandings between the representatives of these currents are explained.

In the paper, Jan Łukasiewicz’s program of the logicization of philosophy is presented and discussed. Łukasiewicz, known mostly for his invention of trivalent logic as well as his achievements in propositional calculus and metalogic, had always been concerned with the methodological condition of philosophy. He finally found “the measure of exactness” in mathematical logic. According to him, only the use of logical tools may provide philosophical investigations with an appropriate level of exactness. He expressed his views most firmly and directly in the paper, “A call for the method of Philosophy”. Łukasiewicz proposed giving philosophical theories the form of axiomatic systems by indicating the primitive terms of their language, selecting suitable axioms, and explicitly determining the applied rules of inference. All the theses of these systems should be consequences of the accepted axioms and confronted with the data of experience and the results of science. Łukasiewicz’s program is presented together with its inspirations and prospects.

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.

This volume is a result of the international symposium “The Tradition of the Lvov-Warsaw School in European Culture,” which took place in Warsaw, Poland, September 2015. It collects almost all the papers presented at the symposium as well as some additional ones. The contributors include scholars from Austria, the Netherlands, Ireland, and Poland. The papers are devoted to the history and reception of the Lvov-Warsaw School, a Polish branch of analytic philosophy. They present the School’s achievements as well as its connections to other analytic groups. The contributors also show how the tradition of the School is developed contemporarily. The title will appeal to historians of analytic philosophy as well as historians of philosophy in Central Europe.

Kazimierz Twardowski was the founder of the Lvov-Warsaw School, one of the greatest phenomena in the European culture. The School had its representatives in all scientific disciplines, logic and mathematics including. Among his pupils are such great figures of European philosophy like: Jan Łukasiewicz, Stanisław Leśniewski, Tadeusz Kotarbiński, Władysław Tatarkiewicz and Kazimierz Ajdukiewicz. The paper presents his life and various fields of his rich activity, as well as the list of his main works and the greatest achievements in philosophy. He is best known in the world as the author of the distinction presentation-object-content, act-product, as well as the supporter of the postulate of clarity of thought and speech and the critic of psychologism, relativity of truth, symbolomania and pragmatophobia in science.

Izydora Dąmbska was one of the most creative women-representatives of the Lvov-Warsaw School. The paper presents her extraordinary personality, life, as well as the list of her main works and the greatest scientific achievements. The main area of her interest was the logic of natural language, methodology and the history of Greek semiotics. She gave meticulous analysis of the relation between conventionalism on one hand, and relativism, scepticism and agnosticism on the other. In semiotics, she proposed new approach to the problem of empty names and material implication, of the correct definition of truth, as well as of pragmatic functions of silence and namelessness. In methodology, her reconstruction of the notion of scientific laws is of great importance.

In March 1930, Alfred Tarski visited Vienna and delivered few lectures which presented the achievements of the logical branch of the Lvov-Warsaw School. Rudolf Carnap was one of the most careful listeners of these lectures. The same year, in November, Carnap, invited by the Warsaw Philosophical Society, visited Warsaw where he gave three lectures. This was an opportunity for him to meet such members the Lvov-Warsaw School as Jan Łukasiewicz, Stanisław Leśniewski, Tadeusz Kotarbiński, and others. Many years later, Carnap reminisced that he left Warsaw “grateful for many stimulating suggestions and the fruitful exchange of ideas”.In the paper, I reconstruct the details of Carnap’s visit in Warsaw based on Carnap’s diaries, reports published in the Polish Journal Ruch Filozoficzny [Philosophical Movement] and some correspondence. I also discuss some problems presented by Carnap in Warsaw lectures and compare his views to the positons of members of the Lvov-Warsaw School. These problems are: the foundations of psychology, the status of metaphysical sentences, and the character of reasoning.