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Merging Optimistic and Pessimistic Preferences

In this paper we consider the extension of non-monotonic preference logic with the distinction between controllable (or endogenous) and uncontrollable (or exogenous) variables, which can be used for example in agent decision making and deliberation. We assume that the agent is optimistic about its own controllable and pessimistic about its uncontrollable, and we study ways to merge these two distinct dimensions. We also consider complex preferences, such as optimistic preferences conditional on an uncontrollable, or optimistic preferences conditional on a pessimistic preference