Abstract:

TAS - A Generic Window Inference System

Christoph Lüth and Burkhart Wolff


This paper presents work on technology for transformational proof and program development, as used by 
window inference calculi and transformation systems. The calculi are characterised by a certain class of theorems 
in the underlying logic. Our transformation system TAS compiles these rules to concrete deduction support, 
complete with a graphical user interface with command-language-free user interaction by gestures like 
drag&drop and proof-by-pointing, and a development management for transformational proofs. It is generic 
in the sense that it is completely independent of the particular window inference or transformational calculus, 
and can be instantiated to many different ones; three such instantiations are presented in the paper.