In this book the authors present new results on interpolation for
nonmonotonic logics, abstract (function) independence, the Talmudic Kal
Vachomer rule, and an equational solution of contrary-to-duty
obligations. The chapter on formal construction is the conceptual core
of the book, where the authors combine the ideas of several types of
nonmonotonic logics and their analysis of 'natural' concepts into a
formal logic, a special preferential construction that combines formal
clarity with the intuitive advantages of Reiter defaults, defeasible
inheritance, theory revision, and epistemic considerations.
It is suitable for researchers in the area of computer science and
mathematical logic.