X-2016-03: Beliefs Supported by Arguments

X-2016-03: Shi, Chenwei and Smets, Sonja (2016) Beliefs Supported by Arguments. [Report]

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Abstract

In this paper we explore the relation between an agent’s doxastic attitude and her arguments in support of a given claim. Formally, we build further on Dung's argumentation framework in Dung (1995). We start by introducing a logic to reason about binary arguments which are either in favor or against a certain claim. Next we explore a number of notions from standard argumentation theory in our system, including the attack of an argument, the acceptability of an argument, the conflict-freeness of a set of arguments and its admissibility. Our setting will allow us to define new concepts, indicating when an argument perfectly defends a given claim P or when an argument only strategically defends a given claim P. The concept of strategic defensibility is then used to link an agent's arguments to her doxastic attitude. This setting offers a formal characterization of “argument”-based beliefs. As such we address an issue which was raised but not worked out in Dung (1995).

Item Type:	Report
Report Nr:	X-2016-03
Series Name:	Technical Notes (X) Series
Year:	2016
Uncontrolled Keywords:	Argumentation Theory, Modal Logic, Belief
Depositing User:	Chenwei Shi
Date Deposited:	12 Oct 2016 14:38
Last Modified:	12 Oct 2016 14:38
URI:	https://eprints.illc.uva.nl/id/eprint/695

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