Covers a wide range of topics ranging from mathematical to philosophical logic, including logic in computer science, physics and philosophy of science. All articles are referenced to guarantee a high level of scientific content and presentation.

Contents: P. Vihan: The Last Month of Gerhard Gentzen in Prague. - F.A. Rodriguez-Consuegra: Some Issues on Godel's Unpublished Philosophical Manuscripts. - D.D. Spalt: Vollstandigkeit als Ziel historischer Explikation. Eine Fallstudie. - E. Engeler: Existenz und Negation in Mathematik und Logik. - W.J. Gutjahr: Paradoxien der Prognose und der Evaluation: Eine fixpunkttheoretische Analyse. - R. Hahnle: Automated Deduction and Integer Programming. - M. Baaz, A. Leitsch: Methods of Functional Extension.