It is well accepted that diagrams play a crucial role in human reasoning. But in mathematics, diagrams are most often only used for visualizations, but it is doubted that diagrams ...
This paper introduces a typed λ-calculus called λPower , a predicative reformulation of part of Cardelli’s power type system. Power types integrate subtyping into the typing t...
This article introduces our new approach to program representation for genetic programming (GP). We replace the usual s-expression representation scheme by a strongly-typed ion-ba...
We describe a type system for the Xd calculus of Gardner and Maffeis. An Xd-network is a network of locations, where each location consists of both a data tree (which contains scr...
Category theory has proved a useful tool in the study of type systems for sequential programming languages. Various approaches have been proposed to use categorical models to exam...