We extend Moss and Parikh's modal logic for subset spaces by adding, among other things, state-valued and set-valued functions. This is done with the aid of some basic concepts from hybrid logic. We ...

More specifically, Studia Logica invites articles on topics in general logic (as defined in 1991 Mathematical Subject Classification) and on applications of logic to other branches of knowledge such ...

Reverse mathematics is a vibrant programme in mathematical logic that investigates the axioms necessary to establish fundamental theorems throughout mathematics. Central to this endeavour are ...