Picture of Gisbert Hasenjaeger in his identity papers during his time at OKW/Chi
Born
June 1, 1919 (1919-06)
Hildesheim, Germany
Died
September 2, 2006(2006-09-02) (aged 87)
Münster, Westphalia, Germany
Citizenship
German
Education
Münster University
Known for
Testing the Enigma encryption machine for cryptographic weaknesses. Developing a proof of the completeness theorem in 1949.
Scientific career
Fields
Mathematics Logic
Institutions
University of Münster University of Bonn Princeton University
Doctoral advisor
Heinrich Scholz
Doctoral students
Dieter Rödding Ronald Jensen Peter Schroeder-Heister[1]
Gisbert F. R. Hasenjaeger (June 1, 1919 – September 2, 2006) was a German mathematical logician. Independently and simultaneously with Leon Henkin in 1949, he developed a new proof of the completeness theorem of Kurt Gödel for predicate logic.[2][3] He worked as an assistant to Heinrich Scholz at Section IVa of Oberkommando der Wehrmacht Chiffrierabteilung, and was responsible for the security of the Enigma machine.[4]
^Gisbert Hasenjaeger at the Mathematics Genealogy Project
^"Past Professors at Münster University" (PDF). wwmath.uni-muenster.de. Retrieved 6 January 2014.
^"Laudatio anläßlich der Erneuerung der Doktorurkunde". WWU Münster Mathematik: Logik. Archived from the original on 31 August 2012. Retrieved 17 February 2014.
^Schmeh, Klaus (15 September 2009). "Enigma's Contemporary Witness: Gisbert Hasenjaeger". Cryptologia. 33 (4): 343–346. doi:10.1080/01611190903186003. ISSN 0161-1194. S2CID 205487783.
and 23 Related for: Gisbert Hasenjaeger information
Gisbert F. R. Hasenjaeger (June 1, 1919 – September 2, 2006) was a German mathematical logician. Independently and simultaneously with Leon Henkin in...
German painter Gisbert Haefs (born 1950), German writer and translator GisbertHasenjaeger (1919–2006), German mathematical logician Gisbert Horsthemke,...
Hüttenhain Peter Novopashenny Walter Fricke Karl Stein Wolfgang Franz GisbertHasenjaeger Heinrich Scholz Werner Liebknecht Gottfried Köthe Ernst Witt Helmut...
British Short Weather Cipher B-Dienst Reservehandverfahren OKW/CHI GisbertHasenjaeger Hagelin machine Enigma machine Japanese army and diplomatic codes...
Hüttenhain Peter Novopashenny Walter Fricke Karl Stein Wolfgang Franz GisbertHasenjaeger Heinrich Scholz Werner Liebknecht Gottfried Köthe Ernst Witt Helmut...
machine used by the Americans in the Second World War Fritz Thiele GisbertHasenjaeger—responsible for Enigma security United States Naval Computing Machine...
the High Command of the Wehrmacht. Discoverer of Stein manifold. GisbertHasenjaeger German, Tester of the Enigma. Discovered new proof of the completeness...
of the Lorenz cipher I. J. Good Good–Turing frequency estimation GisbertHasenjaeger – responsible for Enigma security John Herivel Erhard Maertens –...
Hüttenhain Peter Novopashenny Walter Fricke Karl Stein Wolfgang Franz GisbertHasenjaeger Heinrich Scholz Werner Liebknecht Gottfried Köthe Ernst Witt Helmut...
mathematics at the University of Bonn in 1964. His supervisor was GisbertHasenjaeger. Jensen taught at Rockefeller University, 1969–71, and the University...
starting work at OKW/Chi, the mathematician GisbertHasenjaeger was trained in cryptology by Dr. Hüttenhain. Hasenjaeger was put into a newly formed department...
He is considered the discoverer of the estate of Gottlob Frege. GisbertHasenjaeger whose thesis had been supervised by Scholtz, produced a book Grundzüge...
German-speaking countries. It was founded in 1962 by Wilhelm Ackermann, GisbertHasenjaeger, Hans Hermes, Jürgen von Kempski, Paul Lorenzen, Arnold Schmidt,...
Hüttenhain Peter Novopashenny Walter Fricke Karl Stein Wolfgang Franz GisbertHasenjaeger Heinrich Scholz Werner Liebknecht Gottfried Köthe Ernst Witt Helmut...
Hüttenhain Peter Novopashenny Walter Fricke Karl Stein Wolfgang Franz GisbertHasenjaeger Heinrich Scholz Werner Liebknecht Gottfried Köthe Ernst Witt Helmut...
Hüttenhain Peter Novopashenny Walter Fricke Karl Stein Wolfgang Franz GisbertHasenjaeger Heinrich Scholz Werner Liebknecht Gottfried Köthe Ernst Witt Helmut...
Hüttenhain Peter Novopashenny Walter Fricke Karl Stein Wolfgang Franz GisbertHasenjaeger Heinrich Scholz Werner Liebknecht Gottfried Köthe Ernst Witt Helmut...
Hüttenhain Peter Novopashenny Walter Fricke Karl Stein Wolfgang Franz GisbertHasenjaeger Heinrich Scholz Werner Liebknecht Gottfried Köthe Ernst Witt Helmut...
Hüttenhain Peter Novopashenny Walter Fricke Karl Stein Wolfgang Franz GisbertHasenjaeger Heinrich Scholz Werner Liebknecht Gottfried Köthe Ernst Witt Helmut...
Hüttenhain Peter Novopashenny Walter Fricke Karl Stein Wolfgang Franz GisbertHasenjaeger Heinrich Scholz Werner Liebknecht Gottfried Köthe Ernst Witt Helmut...
Hüttenhain Peter Novopashenny Walter Fricke Karl Stein Wolfgang Franz GisbertHasenjaeger Heinrich Scholz Werner Liebknecht Gottfried Köthe Ernst Witt Helmut...
Hüttenhain Peter Novopashenny Walter Fricke Karl Stein Wolfgang Franz GisbertHasenjaeger Heinrich Scholz Werner Liebknecht Gottfried Köthe Ernst Witt Helmut...
Hüttenhain Peter Novopashenny Walter Fricke Karl Stein Wolfgang Franz GisbertHasenjaeger Heinrich Scholz Werner Liebknecht Gottfried Köthe Ernst Witt Helmut...
Global Information