CHRISTOPH SIGWART (1830–1904) AND HIS LOGIC IN THE WORKS OF ISIDOR PRODAN (1854–1919/1920)

Abstract

In this article, a little-studied problem of the critical analysis of the philosophical and logical position of the representative of German philosophical tradition Christoph Sigwart (1830–1904) in the university philosophy, especially in the work of a Kharkiv private-docent Isidor Prodan (1854–1919/1920) is presented. At first, the main periods of the scientific and creative career of Isidor Prodan, including his studying at the Czernowitz (Chernivtsi) Gymnasium (1864–1872) and the philosophical faculty at the University of Vienna (1872–1875) are considered. His teacher in Vienna was a very famous German and Austrian professor Franz Brentano (1838–1917), the author of the work “Psychology from an Empirical Standpoint” (1874) and the founder of “descriptive psychology” and intentionalism. Then his teaching of logic and philosophy at the Gymnasiums of Kishinev (Moldova), Izmail (Ukraine), Riga (Latvia), Tartu (Estonia), and Moscow (Russia) from 1876 till 1900 is emphasized. Then the features of the teaching and the publications of Isidor Prodan in his “Kharkiv period” (1906–1916) are pointed out, during which he was a private-docent at the department of philosophy. Isidor Prodan’s works at this time comprise three areas: 1) History of logic (Aristotle, Leibniz, Spencer, Sigwart), 2) philosophy of common sense (Thomas Reid and the Scottish School of Common Sense), 3) critique of Kant and Neo-Kantianism (Hermann Cohen, Wilhelm Windelband, Hans Vaihinger, Heinrich Rickert, Ernst Cassirer e. a.). In the last group, his work “The Truth about Kant (A Secret of his Success)” (1914) was of great importance. His very important work was the monograph “The Cognition and its Object (Justification of Common Sense)” (Kharkiv, 1913). The positions of well-known philosophers (Plato, Descartes, Berkley, Leibniz, and Hume) and less-known authors (Lodge, Preyer, and Schneider) were here analyzed. Isidor Prodan’s critical interpretation of the logical viewpoint of Christoph Sigwart in his two-volume work “Logic” (1873, 3^rd ed., 1904) occupies an important place in this analysis. In turn, Isidor Prodan’s important achievement was the popularization of the ideas of this German logician and philosopher, in particular, because of his translation of extracts from the work “Logic”.