Vagueness is the phenomenon that natural language predicates have borderline regions of applicability and that the boundaries of the borderline region are not determinable. A theo...
Quest is a programming language based on impredicative type quantifiers and subtyping within a three-level structure of kinds, types and type operators, and values. The semantics ...
New mobile computing technologies and the increasing use of portable devices have pushed the development of the so-called context-aware applications. This new class of applications...
Proof animation is a way of executing proofs to nd errors in the formalization of proofs. It is intended to be \testing in proof engineering". Although the realizability inter...
We introduce a computational interpretation for Hilbert’s choice operator (ε). This interpretation yields a typed foundation for dynamic linking in software systems. The use of ...