Modal logic with names
The paper aims at some general theory of names in a purely modal environment. Names are properties that identify a single intensional object completely. The suggested language is a propositional modal language enriched by a general modality and names: special propositional variables that are allowed to be true at exactly one point of the universe only. This language turns out to be of great expressive power. Topics of the paper are (modal) definability and deductive systems in that language. Some completeness theorems are proved.
scientific article; zbMATH DE number 482283
scientific article