The first aim of this paper is to present the logical core of XPath 2.0: a logically clean, decidable fragment, which includes most navigational features of XPath 2.0 (complex co...
We present an approach to monitoring system policies. As a specification language, we use an expressive fragment of a temporal logic, which can be effectively monitored. We repor...
Approximate Herbrand theorems are established for first-order fuzzy logics based on continuous t-norms, and used to provide proof-theoretic proofs of Skolemization for their Prenex...
- In the speed-independent logic, the hazards caused by input inverters are identified. The known methods of the elimination of such hazards are based on avoiding input inverters. ...
Model-checking problems for PDL (propositional dynamic logic) and its extension PDL (which includes the intersection operator on programs) over various classes of infinite state sy...