Possibility and Necessity Functions over Non-Classical Logics.

Philippe Besnard Jérôme Lang Possibility and Necessity Functions over Non-Classical Logics. 69-76 1994 conf/uai/1994 UAI http://rome.exp.sis.pitt.edu/UAI/Abstract.asp?articleID=489&proceedingID=10 db/conf/uai/uai1994.html#BesnardL94