This paper shows that satisfiability for Propositional Dynamic Logic with Intersection is EXPSPACE-hard. The proof uses a reduction from the word problem for alternating, exponent...
In this paper we give the notion of modularity of a theory and analyze some of its properties, especially for the case of action theories in reasoning about actions. We propose alg...
This paper aims to examine Horty's proposal of utilitarian deontic logic [7]. It will focus on his dominance operators by way of simplified semantics. An axiomatization of the...
abstract. Analytical investigations of agency are mostly concerned with a description ex post acto. However, continuous action (being doing something) needs to be considered as wel...