This book introduces new models based on R-calculus and theories of belief revision for dealing with large and changing data. It extends R-calculus from first-o

This third volume of the book series shows R-calculus is a Gentzen-typed deduction system which is non-monotonic, and is a concrete belief revision operator whi

This second volume of the book series shows R-calculus is a combination of one monotonic tableau proof system and one non-monotonic one. The R-calculus is a Gen

Contains articles of significant interest to mathematicians, including reports on current mathematical research.