Lothar Kreiser

Lothar Werner Kreiser (born June 19, 1934 in Arnsdorf ) is a retired German philosopher and professor.

Life

L. Kreiser, 2nd son of a factory worker and a Swiss, attended elementary school in Arnsdorf from 1940 to 1948, learned the trade of toolmaker at VEB Leuchtenbau Arnsdorf from 1949 to 1952, and graduated from the Arbeiter-und in 1954 -Bauer Faculty of the University of Leipzig, where he studied philosophy with a minor in mathematics until 1959. After the state examination, he was an aspirant at the Humboldt University in Berlin and completed the aspirantur in 1962 with the acquisition of the academic title of Dr. phil. from. From 1962 to 1968 he was an assistant or senior assistant at the Institute for Philosophy at the Karl Marx University in Leipzig. In 1967 he completed his habilitation and in 1968 was appointed full lecturer in logic at this university. In 1972 he was appointed full professor of logic. In the 1980/81 academic year he held the International Frege Chair at the Friedrich Schiller University in Jena. He had lectureships in logic for years at the Dresden University of Education and at the Martin Luther University. In 1992 he was reappointed as a full professor of logic, classical logic and semantics. From 1989 to 1994 he was Dean of the Faculty of Philosophy and History at the University of Leipzig and as such a member of the Senate of this university. From 1990 to 1992 he represented the Faculty of Philosophy and History in the Philosophical Faculty Day. He was then a member of the Science Council of the Federal Government of Germany from 1992 to 1998, where he was involved in a number of temporary and permanent commissions. During this time, he was also active in other national scientific organizations. From 1992 to 2000 he was a member of the research advisory board at the Saxon State Ministry for Science and Art. Since 1995 he has been a full member of the Saxon Academy of Sciences in Leipzig and belongs to the Philological-Historical Class, of which he was secretary from 2001 to 2003.

L. Kreiser takes the view that logic is a non-philosophical structural science and should therefore be pursued like one. This position, also represented by others, was accepted in 1987 by the responsible state authorities of the GDR, in particular also by the science department in the Central Committee of the SED. In the GDR, logic was therefore not officially part of Marxist-Leninist philosophy (ideology). In the GDR he was a member of the scientific advisory boards of the university and national education ministries. In 1986 he was appointed by the GDR Minister for Higher Education and Technical Schools to head a commission that was supposed to develop a concept for the development of logic at the universities and colleges of the GDR up to 1990 and strategies for the time thereafter. The conception was accepted in its first submission in 1987 and it also brought about the breakthrough in his long-term endeavor to introduce logic lessons at the extended secondary schools. In the same year, the practical testing of a curriculum for the optional logic lessons at selected advanced secondary schools in the Saxon region began. At the same time, preparations were made for the preliminary qualification of teachers in schools and universities of teacher education. L. Kreiser was a member of the Research and Computing Center Dresden's scientific advisory board during the period in which it existed and also supported, with his own contributions, the educational theory, electronically supported studies under the direction of Horst Kreschnak. The subject of logic is Kreiser's view of inferential relationships between semantically determinable values ​​of their respective set of carriers. He examines a number of such corollary relationships in his book “The Diversity of Logical”, published in 2008. In its research and its systematic development as a non-classical logical theory, whose original areas of application are social sciences, he incorporated the logical methodology, the processing of which he promoted in his chair through the establishment of a teaching and research group led by a member of staff, as a means of investigation . He encouraged his co-workers to work on non-classical logical theories, the results of which can be found in the book “Non-classical logic. An Introduction ”were presented. The history of logic, especially of formal logic, represented a further research and teaching area of ​​his. In his opinion, B. Bolzano, W. Wundt or H. Lotze still contain ideas that can give cognition triggering impulses for today's research, analogous to Frege's logical-semantic work, which is also one of his research areas. The first comprehensive biography of Frege (published in 2001) is a result of his decades of research into the life and work of Gottlob Frege. He contributed to the anthology, logic texts, conceived by the Czech logician Karel Berka . Annotated text (s) on the history of modern logic , which was published in 1971 by Akademie-Verlag under both names and was a very successful publication with several editions. On Frege's variation of meaning to decide whether a given statement from a set of statements is logically independent of this or not, L. Kreiser then developed a method for understanding a text connected with validity through its logical components. He presented the heuristic value of this procedure using a propositional model for the statements in Chapter 1 (“About God”) of the “Ethics” by B. Spinoza and a section from the “Theory of Science” by G. Fichte. According to him, understanding text using logical models is the subject of logical hermeneutics. L. Kreiser is a scientist, science organizer, science politician and educational theorist.

Publications

He published around 200 scientific papers on topics in his area of ​​expertise, including four of his own books

• Interpretation and meaning. On the logical semantics of philosophical terminology. Akademie-Verlag, Berlin 1986, 136 pp.
• Thank God Frege . Life - Work - Time (2001)
• The variety of logic (2008)
• Logic and Logician in the GDR (2009)

co-authored three books

• (Ed. With Karel Berka): Logic texts, annotated text selection on the history of modern logic . Akademie-Verlag, Berlin 1971. Several also extended editions.
• Non-Classical Logic (1986)
• Traditional and Non-Classical Logic (2004)

and is the editor of two books

• G. Frege: Writings on Logic (1973)
• L. Borkowski: Formal Logic (1976)

His work on Gottlob Frege, the founder of modern logic, his logically semantic work and his investigations into logical hermeneutics found international recognition.

literature

• NI Kondakow: Dictionary of Logic , editor of the German edition: Erhard Albrecht, Günter Asser, Leipzig 1983
• Who was who in the GDR. A biographical lexicon , Berlin 2003
• Citizen portraits City of Leipzig , Delitzsch 2005
• H. Riedel: Stadtlexikon Leipzig from A to Z , Leipzig 2005
• Ingolf Max (Ed.): Traditional and modern logic. Dedicated to Lothar Kreiser . Leipzig 2003

Web links

• Literature by and about Lothar Kreiser in the catalog of the German National Library
• Lothar Kreiser in the professorial catalog of the University of Leipzig