“…On the other hand, Lehmann and Magidor's rational closure falls into the preferential approach to non-monotonic reasoning; such an approach, since the first formulation by Shoham (1988), has become a main representative of non-monotonic reasoning (Kraus, Lehmann, & Magidor, 1990;Lehmann & Magidor, 1992;Makinson, 1994Makinson, , 2005Freund, 1998;Bochman, 2001;Rott, 2001;Schlechta, 2004), particularly appreciated for the solid logical characterization of the consequence relation.…”