Arnold Oberschelp

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Arnold Oberschelp (born February 5, 1932 in Recklinghausen ) is a German mathematician and logician and was for many years professor of logic and science in Kiel.

Arnold Oberschelp, Aachen 1978

Life

Oberschelp studied mathematics and physics at the universities of Göttingen and Münster . In Münster he did his doctorate in mathematical logic with Hans Hermes . In 1958 he was a research assistant at the Mathematical Institute of the Technical University of Hanover . In 1961 he completed his habilitation in mathematics. In 1968 he accepted a position as a full professor for logic and science at the Christian Albrechts University in Kiel . Oberschelp has been retired since 1997 .

Arnold Oberschelp developed a general class logic in which any class can be formed without the contradictions of naive set theory. Additional axioms result from the Zermelo-Fraenkel set theory , which, however, is much more manageable in its class-logic representation than the usual predicate logic representation.

"A class logic language corresponds to the mathematical language actually used far better than a predicate logic language."

- Oberschelp : General set theory, 1994, foreword on page 5

In 1962 he gave a lecture as an invited speaker at the International Congress of Mathematicians in Stockholm on classes as "primordial elements" in set theory .

From 1970 to 1976 he was chairman of the German Association for Mathematical Logic and for Basic Research in the Exact Sciences , on whose board he was from 1965 to 1978.

literature

Web links

Individual evidence

  1. On the history of logic in Kiel by O. Spinas
  2. Comparison of ZFC in class-logical and predicate-logical form in: Oberschelp, Allgemeine Gruppelehre, 1994, p. 261