158 search results - page 5 / 32 » Conservative extensions in modal logic |
APAL
2005
13 years 7 months ago
2005
In this paper we consider distributive modal logic, a setting in which we may add modalities, such as classical types of modalities as well as weak forms of negation, to the fragm...
CADE
1999
Springer
13 years 11 months ago
1999
Springer
We present a PSpace algorithm that decides satisfiability of the graded modal logic Gr(KR)—a natural extension of propositional modal logic KR by counting expressions—which pl...
TARK
2007
Springer
14 years 1 months ago
2007
Springer
In this paper we show how coalition logic can be reduced to the fusion of a normal modal STIT logic for agency and a standard normal temporal logic for discrete time, and how this...
APAL
1999
13 years 7 months ago
1999
The present paper investigates the groups of automorphisms for some lattices of modal logics. The main results are the following. The lattice of normal extensions of S4.3, NExt S4....
AAAI
1990
13 years 8 months ago
1990
Recently, conditional logics have been developed for application to problems in default reasoning. We present a uniform framework for the development and investigation of conditio...