A Directly Cautious Theory of Defeasible Consequence for Default Logic via the Notion of General Extension.

Gian Aldo Antonelli A Directly Cautious Theory of Defeasible Consequence for Default Logic via the Notion of General Extension. 71-109 1999 109 Artif. Intell. 1-2 db/journals/ai/ai109.html#Antonelli99 http://dx.doi.org/10.1016/S0004-3702(99)00014-4