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  1. Daniel Lehmann, Menachem Magidor & Karl Schlechta (2001). Distance Semantics for Belief Revision. Journal of Symbolic Logic 66 (1):295-317.
    A vast and interesting family of natural semantics for belief revision is defined. Suppose one is given a distance d between any two models. One may then define the revision of a theory K by a formula α as the theory defined by the set of all those models of α that are closest, by d, to the set of models of K. This family is characterized by a set of rationality postulates that extends the AGM postulates. The new postulates (...)
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  2. Daniel Lehmann, W. K. Strik, B. Henggeler & T. Koenig (1998). Brain Electric Microstates and Momentary Conscious Mind States as Building Blocks of Spontaneous Thinking: I. Visual Imagery and Abstract Thoughts. International Journal of Psychophysiology 29:1-11.
  3. Michael Freund & Daniel Lehmann (1994). Nonmonotonic Reasoning: From Finitary Relations to Infinitary Inference Operations. Studia Logica 53 (2):161 - 201.
    A. Tarski [22] proposed the study of infinitary consequence operations as the central topic of mathematical logic. He considered monotonicity to be a property of all such operations. In this paper, we weaken the monotonicity requirement and consider more general operations, inference operations. These operations describe the nonmonotonic logics both humans and machines seem to be using when infering defeasible information from incomplete knowledge. We single out a number of interesting families of inference operations. This study of infinitary inference operations (...)
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  4. Daniel Lehmann, B. Henggler, M. Koukkan & M. Michel (1993). Source Localization of Brain Electric Field Frequency Bands During Conscious, Spontaneous Visual Imagery and Abstract Thought. Cognitive Brain Research 1:203-20.
     
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