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16 Publications


2006 | Conference Paper | LibreCat-ID: 3327
B. Stein, O. Niggemann, and T. Lettmann, “Speeding Up Model-based Diagnosis by a Heuristic Approach to Solving SAT,” in AIA ’06: Proceedings of the 24th IASTED International Conference on Artificial Intelligence and Applications, 2006, pp. 273--278.
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1999 | Journal Article | LibreCat-ID: 19815
H. Kleine Büning and T. Lettmann, “Resolution remains hard under equivalence,” Discrete Applied Mathematics, pp. 139–148, 1999.
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1999 | Book | LibreCat-ID: 3339
T. Lettmann and H. Kleine Büning, Propositional Logic : Deduction and Algorithms. Cambridge Univ. Press, 1999.
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1996 | Book Chapter | LibreCat-ID: 19816
H. Kleine Büning and T. Lettmann, “Learning a representation for optimizable formulas,” in Lecture Notes in Computer Science, Berlin, Heidelberg, 1996.
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1994 | Book | LibreCat-ID: 3333
H. Kleine Büning and T. Lettmann, Aussagenlogik - Deduktion und Algorithmen. Teubner, 1994.
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1993 | Journal Article | LibreCat-ID: 19814
A. Flögel, H. Kleine Büning, and T. Lettmann, “On the restricted equivalence for subclasses of propositional logic,” RAIRO - Theoretical Informatics and Applications, pp. 327–340, 1993.
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1991 | Report | LibreCat-ID: 19822
B. I. Dahn, T. Lettmann, and W. Schönfeld, ILFA Interface Concept, vol. 193. ´Heidelberg: Wissenschaftliche Zentrum der IBM Deutschland , 1991.
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1989 | Journal Article | LibreCat-ID: 19818
H. Kleine Büning, T. Lettmann, and E. W. Mayr, “Projections of vector addition system reachability sets are semilinear,” Theoretical Computer Science, pp. 343–350, 1989.
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1988 | Conference Paper | LibreCat-ID: 19820
H. Kleine Büning and T. Lettmann, “Perspektiven für die Logikprogrammierung,” in Workshop Wissensrepräsentation in Expertensystemen, 1988, pp. 56–78.
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1987 | Book Chapter | LibreCat-ID: 19821
H. K. Büning and T. Lettmann, “Representation independent query and update operations on propositional definite Horn formulas,” in Computation Theory and Logic, E. Börger, Ed. Berlin, Heidelberg, 1987, pp. 208–223.
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1986 | Book Chapter | LibreCat-ID: 19819
H. Kleine Büning and T. Lettmann, “Classes of first order formulas under various satisfiability definitions,” in 8th International Conference on Automated Deduction, Berlin, Heidelberg, 1986.
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