Abstract. Bisimilarity and weak bisimilarity are canonical notions of equivalence between processes, which are defined co-inductively, but may be approached
In this paper we continue investigations of proof theory of default logic. It turns out that, similarly to classical logic, default theories can be represented in normal forms.
We present an new Prot´eg´e plugin for constructing a minimal satisfiability model of an OWL ontology and visualizing it in the original music score notation.