797 search results - page 38 / 160 » Logics with an existential modality |
CORR
2006
Springer
13 years 11 months ago
2006
Springer
There has been a great deal of work on characterizing the complexity of the satisfiability and validity problem for modal logics. In particular, Ladner showed that the consistency...
ENTCS
2007
13 years 11 months ago
2007
Polyadic coalgebraic modal logic is studied in the setting of locally presentable categories. It is shown that under certain assumptions, accessible functors admit expressive logi...
ICALP
2010
Springer
13 years 9 months ago
2010
Springer
In this paper, we focus our attention on the fragment of Halpern and Shoham's modal logic of intervals (HS) that features four modal operators corresponding to the relations &...
ADBIS
2005
Springer
14 years 4 months ago
2005
Springer
We present a query language called MDatalog, which is an extension of Datalog for multimodal deductive databases. We define modal relational algebras and give the seminaive evalua...
AIIA
2005
Springer
14 years 4 months ago
2005
Springer
We look at extensions of modal logic for representation and reasoning in the area of multi-agent systems. Building on dynamic logic and Henkin quantifiers, we study an unusual typ...