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Dynamic Interactions Between Goals and Beliefs Shapiro, Steven Brewka, Gerhard Goal Change Belief Change Situation Calculus Shapiro et al. [2005], presented a framework for representing goal change in the situation calculus. In that framework, agents adopt a goal when requested to do so (by some agent reqr), and they remain committed to the goal unless the request is cancelled by reqr. A common assumption in the agent theory literature, is that achievement goals that are believed to be impossible to achieve should be dropped. In this paper, we incorporate this assumption into Shapiro et al.'s framework, however we go a step further. If an agent believes a goal is impossible to achieve, it is dropped. However, if the agent later believes that it was mistaken about the impossibility of achieving the goal, the agent might readopt the goal. In addition, we consider an agent's goals as a whole when making them compatible with their beliefs, rather than considering them individually. Schloss Dagstuhl – Leibniz-Zentrum für Informatik Steven Shapiro and Gerhard Brewka 2007 Is Part Of Dagstuhl Seminar Proceedings, Volume 7351, Formal Models of Belief Change in Rational Agents (2007) InProceedings Text doc-type:ResearchArticle publishedVersion application/pdf doi:10.4230/DagSemProc.07351.10 urn:nbn:de:0030-drops-11995 https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.07351.10 eng https://creativecommons.org/licenses/by/4.0/legalcode