Empiricism, Logic and Mathematics

1. Front Matter

   Pages i-xix

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2. Superfluous Entities, or Occam’s Razor

   • Hans Hahn

   Pages 1-19

3. The Significance of the Scientific World View, Especially for Mathematics and Physics

   • Hans Hahn

   Pages 20-30

4. Discussion about the Foundations of Mathematics (Sunday, 7 September 1930)

   • Hans Hahn

   Pages 31-38

5. Empiricism, Mathematics, and Logic

   • Hans Hahn

   Pages 39-42

6. Reflections on Max Planck’s

   • Hans Hahn

   Pages 43-50

7. Review of Alfred Pringsheim, Vorlesungen über Zahlen- und Funktionenlehre, Vol. I, Parts I and II, Leipzig and Berlin 1916

   • Hans Hahn

   Pages 51-72

8. The Crisis in Intuition

   • Hans Hahn

   Pages 73-102

9. Does the Infinite Exist?

   • Hans Hahn

   Pages 103-131

10. Back Matter

    Pages 132-142

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The role Hans Hahn played in the Vienna Circle has not always been sufficiently appreciated. It was important in several ways. In the ftrst place, Hahn belonged to the trio of the original planners of the Circle. As students at the University of Vienna and throughout the fIrst decade of this century, he and his friends, Philipp Frank and Otto Neurath, met more or less regularly to discuss philosophical questions. When Hahn accepted his fIrSt professorial position, at the University of Czernowitz in the north­ east of the Austrian empire, and the paths of the three friends parted, they decided to continue such informal discussions at some future time - perhaps in a somewhat larger group and with the cooperation of a philosopher from the university. Various events delayed the execution of the project. Drafted into the Austrian army during the first world war" Hahn was wounded on the Italian front. Toward the end of the war he accepted an offer from the University of Bonn extended in recognition of his remarkable 1 mathematical achievements. He remained in Bonn until the spring of 1921 when he returm:d to Vienna and a chair of mathe­ matics at his alma mater. There, in 1922, the Mach-Boltzmann professorship for the philosophy of the inductive sciences became vacant by the death of Adolf Stohr; and Hahn saw a chance to realize his and his friends' old plan.

• 1922
• Berlin
• Positivismus
• Vienna
• bibliography
• crisis
• death
• empiricism
• event
• foundation
• future
• philosophy
• physics
• project
• time

Policies and ethics