Actions under presuppositions

Abstract

This paper consists of two parts: the first is contained in section 1. It reviews, perhaps too briefly, some basic philosophy on meaning, information, information state, information ordering and the like. In the remaining sections two interwoven problems are considered: the first is how to view update functions as partial states (or more generally partial 'actions'). Partial states (actions) are viewed as states (actions) under a presupposition. The second problem is how the merger of meanings interacts with the synchronic information ordering. We explore some consequences of the hypothesis that this interaction is described by a Residuation Lattice.