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True Belief and Mere Belief About a Proposition and the Classification of Epistemic-Doxastic Situations

Abstract : Starting from standard logics of knowledge and belief with principles such as introspection of beliefs and 'knowledge implies belief', we study two non-normal modalities of belief: true belief about a proposition and what we call mere belief about a proposition. We show that these modalities suffice to define all possible epistemic-doxastic situations in a combinatorial manner. Furthermore, we show that two consecutive modalities that are indexed by the same agent can be reduced for two of the three logics of knowledge and belief that we consider.
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https://hal.archives-ouvertes.fr/hal-03011708
Contributor : Andreas Herzig Connect in order to contact the contributor
Submitted on : Wednesday, November 18, 2020 - 11:25:51 AM
Last modification on : Tuesday, October 19, 2021 - 2:23:36 PM
Long-term archiving on: : Friday, February 19, 2021 - 6:58:59 PM

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  • HAL Id : hal-03011708, version 1

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Andreas Herzig, Elise Perrotin. True Belief and Mere Belief About a Proposition and the Classification of Epistemic-Doxastic Situations. Filosofiska Notiser, 2021, Årgång 8 (1- Special issue on modal logic), pp.103-117. ⟨hal-03011708⟩

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