These essays evolved from research presented at the Third International Conference on situation theory and its applications.

Situation Theory is the result of an interdisciplinary effort to create a full-fledged theory of information. Created by scholars and scientists from cognitive science, computer science and AI, linguistics, logic, philosophy, and mathematics, it aims to provide a common set of tools for the analysis of phenomena from all of these fields. The research presented in this volume reflects a growing international and interdisciplinary activity of importance to many fields concerned with the information.

Peter Aczel is professor of mathematical logic and computer logic at Manchester University. David Israel is a senoir computer scientist in the Artificial Intelligence Center at SRI International abd a consulting professor in the Philosophy Department at Stanford University. Yasuhiro Katagiri is a research scientist in the Information Science Research Laboratory of NTT Basic Research Laboratories. Stanley Peters is professor of linguistics and symbolic systems at Stanford University.