This paper looks into the writings of Jürgen Rödig (1942–1975) on legal logic with the aim of identifying those results which still appear to be essential contributions to legal theory. Of particular ...

This is a preview. Log in through your library . Abstract In this paper we present a sequent calculus for propositional dynamic logic built using an enriched version of the tree-hypersequent method ...

Modal logic, an extension of classical logic, investigates the modes of truth such as necessity and possibility. Its development has been closely intertwined with advances in proof theory, a field ...