Epistemological foundations for the representation of discourse context
نویسنده
چکیده
The first four sections of the paper focus on characterizing the elements that enter into the characterization of the notion of discourse context. One way of doing so is by identifying this notion with the set of commonly presupposed items. I propose a multi-agent account of context where it is essential to represent what each agent takes as being commonly presupposed, aside from what is commonly presupposed. The account requires adding dynamic features to context, in terms of the capacities of supposing that something is the case, given a current context; or in terms of the capacity of updating a context with new information. These dynamic features figure prominently in the proposed characterization. The final sections of the paper focus on the inferential role played by the doxastic commitments induced by discourse context. I argue that these commitments do play a crucial role in understanding how agents reason defeasibly from the point of view of a given context. I discuss also some of the existing accounts, in terms of autoepistemic operators. I argue that they cannot provide a good encoding for conversational implicatures of the type Grice studied. The article offers instead an alternative account of autoepistemic inference based on an insight presented by Paul Grice in a recent addendum to his seminal article ‘Logic and Conversation’.
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تاریخ انتشار 2004