The general aim of this research project is to ecplicate formally defeasible reasoning forms (DRFs) by means of Adaptive logics (ALs). Despite the fact that the standard format for ALs proved to be very useful for the formak characterization of many DRFs, it is suboptimal for some application contexts. the more specific aim of my research is hence to investigate the capacities and limits of the standard format and to generalize it if and where recessary. An efficient way to scrutinize this aim is to consider the many DRFs that developed independently of the AL program (only some of them were integrated thus far).