 A preference for one defeasible inference A \(\rightarrow\) B over another conflicting one C \(\rightarrow\) D may depend also on other factors. For instance, in an epistemic context we may compare the strengths of A \(\rightarrow\) B and C \(\rightarrow\) D by appealing to the reliability of the source from which the respective conditional knowledge stems. In the context of legal reasoning we may have the principles lex superior resp. lex posterior, according to which the higher ranked resp. the later issued law dominates. 