Walter Dubislav was a German logician and philosopher of science (Wissenschaftstheoretiker). After studying mathematics

Mathematics

Mathematics is the study of quantity, space, structure, and change. Mathematicians seek out patterns and formulate new conjectures. Mathematicians resolve the truth or falsity of conjectures by mathematical proofs, which are arguments sufficient to convince other mathematicians of their validity...

 and philosophy

Philosophy

Philosophy is the study of general and fundamental problems, such as those connected with existence, knowledge, values, reason, mind, and language. Philosophy is distinguished from other ways of addressing such problems by its critical, generally systematic approach and its reliance on rational...

, he attained a doctorate

Doctorate

A doctorate is an academic degree or professional degree that in most countries refers to a class of degrees which qualify the holder to teach in a specific field, A doctorate is an academic degree or professional degree that in most countries refers to a class of degrees which qualify the holder...

 in 1922 with "Contributions to the theories of definition and proof within mathematical logic" (Beiträge zur Lehre von der Definition und vom Beweis vom Standpunkt der mathematischen Logik aus). In 1928 he became a private lecturer in philosophy of mathematics

Philosophy of mathematics

The philosophy of mathematics is the branch of philosophy that studies the philosophical assumptions, foundations, and implications of mathematics. The aim of the philosophy of mathematics is to provide an account of the nature and methodology of mathematics and to understand the place of...

 and the natural sciences at the Technical University of Berlin

Technical University of Berlin

The Technische Universität Berlin is a research university located in Berlin, Germany. Translating the name into English is discouraged by the university, however paraphrasing as Berlin Institute of Technology is recommended by the university if necessary .The TU Berlin was founded...

 and from 1931 was Professor Extraordinarius (außerordentlicher Professor, ao. Prof.). In 1936 he emigrated.

He was joint founder (with Hans Reichenbach

Hans Reichenbach

Hans Reichenbach was a leading philosopher of science, educator and proponent of logical empiricism...

 and Kurt Grelling

Kurt Grelling

Kurt Grelling was a logician, philosopher and member of the Berlin Circle.- Life and work :Shortly after his arrival in 1905 at University of Göttingen, Grelling began a collaboration with philosopher Leonard Nelson, with whom he tried to solve Russell's paradox, which had shaken the foundations...

) of the 'Berlin Society for Empirical (later: Scientific) Philosophy' (Berliner Gesellschaft für empirische Philosophie), which, along with the Vienna Circle

Vienna Circle

The Vienna Circle was an association of philosophers gathered around the University of Vienna in 1922, chaired by Moritz Schlick, also known as the Ernst Mach Society in honour of Ernst Mach...

, is one of the points of origin of logical empiricism. The founding members of the Berlin Circle were listed as sympathisers within the Vienna Circle.

Dubislav focused on a logical and mechanistic foundation of mathematics and physics, influenced by Bernard Bolzano

Bernard Bolzano

Bernhard Placidus Johann Nepomuk Bolzano , Bernard Bolzano in English, was a Bohemian mathematician, logician, philosopher, theologian, Catholic priest and antimilitarist of German mother tongue.-Family:Bolzano was the son of two pious Catholics...

's "Theory of Science" (Wissenschaftslehre). He presented a formalised account of Gottlob Frege

Gottlob Frege

Friedrich Ludwig Gottlob Frege was a German mathematician, logician and philosopher. He is considered to be one of the founders of modern logic, and made major contributions to the foundations of mathematics. He is generally considered to be the father of analytic philosophy, for his writings on...

's theory of definitions.

Publications

• With Claubberg, K.W.: "A Systematic Dictionary of Philosophy" (Systematisches Wörterbuch der Philosophie). Felix Meiner, Leipzig 1923.
• "On Definitions" (Über die Definition). Weiss, Berlin 1926; 2nd edition published 1927; "Definitions 3" (Die Definition 3), Felix Meiner, Leipzig 1931; 4th edition, with an introduction by Wilhelm K. Essler, published by Meiner, Hamburg 1981 ISBN 3787305130.
• "On the so-called analytic and synthetic judgements" (Über die sog. analytischen und synthetischen Urteile). Weiss, Berlin 1926.
• "Fries'
  Jakob Friedrich Fries
  Jakob Friedrich Fries was a German philosopher from Barby .-Life and career:...
  
  Theory of Meaning" (Die Friessche Lehre von der Begründung) in "Representation and Criticism" (Darstellung und Kritik), E. Mattig, Dömitz 1926.
• "On the Theory of the so-called Creative Definitions" (Zur Lehre von den sog. schöpferischen Definitionen). Fulda 1928.
• "On the so-called Object in Mathematics" (Über den sogenannten Gegenstand in der Mathematik) in "The Annual Report of the German Mathematics Convention, 37" (Jahresbericht der Deutschen Mathematiker-Vereinigung 37), pp27–48, Leipzig 1928.
• "On the Methodology of Critical Philosophy" (Zur Methodenlehre des Kritizismus). H. Beyer & Sons, Langensalza 1929.
• "Contemporary Philosophy of Mathematics" (Die Philosophie der Mathematik in der Gegenwart). (Philosophische Forschungsberichte 13) Junker & Dünnhaupt, Berlin 1932.
• "Philosophy of Nature" (Naturphilosophie). (Philosophische Grundrisse Heft 2) Junker & Dünnhaupt, Berlin 1933; also in ISBN 3836417952