What makes concept maps different from intuitive alternatives to showing connections between different pieces of information is the organization of concepts in a “propositional network.” This means ...

In this article, we address the problem both from the semantic and the proof-theoretical point of view. We propose a hierarchy of propositional logics that are all tractable (i.e. decidable in ...

I argue against the orthodox view of the relationship between propositional and doxastic justification. The view under criticism is: if p is propositionally justified for S in virtue of S's having ...