 Gricean pragmatics is not the only approach in which defaults are discussed. Defaults and nonmonotonic reasoning are also well entrenched in  computational linguistics.  Defaults are distinguished there with respect to various units of meaning, from morphemes and words to multisentential units (Asher &amp; Lascarides 1995; Lascarides &amp; Copestake 1998). In this section I focus on intersentential default links and in the next I place ‘glue logic’ in the context of some other understandings of defaults in computational semantics.