We propose a dynamic-epistemic analysis of perceptual knowledge placing structured observational ... more We propose a dynamic-epistemic analysis of perceptual knowledge placing structured observational events at center stage. Our starting point is the specific entanglement of epistemic accessibility with the relation of ‘closeness’ or similarity, that is claimed in the so-called Margin of Error principle. While we find the standard formulation of this principle to be defective, we think that it contains valuable intuitions for a joint logic of closeness and uncertainty, whose contours we develop. In particular, our analysis explains how imprecise observation can lead to higher-precision knowledge.
Monotonicity-based inference is a fundamental notion in the logical semantics of natural language... more Monotonicity-based inference is a fundamental notion in the logical semantics of natural language, and also in logic in general. Start- ing in generalized quantifier theory, we distinguish three senses of the notion, study their relations, and use these to connect monotonicity to logics of model change. At the end we return to natural language and consider monotonicity inference in linguistic settings with vocabulary for various forms of change. While we mostly raise issues in this paper, we do make a number of new observations backing up our distinctions.
KNAW Narcis. Back to search results. Publication Games at the Institute for Logic, Language and C... more KNAW Narcis. Back to search results. Publication Games at the Institute for Logic, Language and Computation (2005). Pagina-navigatie: Main. ...
Abstract. This paper looks at deontic logic as resulting from both a betterness ordering on state... more Abstract. This paper looks at deontic logic as resulting from both a betterness ordering on states (ie, a 'deontic preference') and a priority ordering on properties (ie, a 'law'explicitly representing a standard of behavior). The correspondence between these two orderings offers a rich perspective from which to look at deontic scenarios and puzzles, and in particular at contrary-to-duties. The framework naturally lends itself to describing dynamics involving both orderings, thereby providing a new analysis of norm change as 'betterness ...
We propose a dynamic-epistemic analysis of perceptual knowledge placing structured observational ... more We propose a dynamic-epistemic analysis of perceptual knowledge placing structured observational events at center stage. Our starting point is the specific entanglement of epistemic accessibility with the relation of ‘closeness’ or similarity, that is claimed in the so-called Margin of Error principle. While we find the standard formulation of this principle to be defective, we think that it contains valuable intuitions for a joint logic of closeness and uncertainty, whose contours we develop. In particular, our analysis explains how imprecise observation can lead to higher-precision knowledge.
Monotonicity-based inference is a fundamental notion in the logical semantics of natural language... more Monotonicity-based inference is a fundamental notion in the logical semantics of natural language, and also in logic in general. Start- ing in generalized quantifier theory, we distinguish three senses of the notion, study their relations, and use these to connect monotonicity to logics of model change. At the end we return to natural language and consider monotonicity inference in linguistic settings with vocabulary for various forms of change. While we mostly raise issues in this paper, we do make a number of new observations backing up our distinctions.
KNAW Narcis. Back to search results. Publication Games at the Institute for Logic, Language and C... more KNAW Narcis. Back to search results. Publication Games at the Institute for Logic, Language and Computation (2005). Pagina-navigatie: Main. ...
Abstract. This paper looks at deontic logic as resulting from both a betterness ordering on state... more Abstract. This paper looks at deontic logic as resulting from both a betterness ordering on states (ie, a 'deontic preference') and a priority ordering on properties (ie, a 'law'explicitly representing a standard of behavior). The correspondence between these two orderings offers a rich perspective from which to look at deontic scenarios and puzzles, and in particular at contrary-to-duties. The framework naturally lends itself to describing dynamics involving both orderings, thereby providing a new analysis of norm change as 'betterness ...
This chapter gives an overview of current dynamic logics that describe belief update and revision... more This chapter gives an overview of current dynamic logics that describe belief update and revision, both for single agents and in multi-agent settings. We employ a mixture of ideas from AGM belief revision theory and dynamic-epistemic logics of information-driven agency. After describing the basic background, we review logics of various kinds of beliefs based on plausibility models, and then go on to various sorts of belief change engendered by changes in current models through hard and soft information. We present matching complete logics with dynamic-epistemic recursion axioms, and develop a very general perspective on belief change by the use of event models and priority update. The chapter continues with three topics that naturally complement the setting of single steps of belief change: connections with probabilistic approaches to belief change, long-term temporal process structure including links with formal learning theory, and multi-agent scenarios of information flow and belief revision in games and social networks. We end with a discussion of alternative approaches, further directions, and windows to the broader literature, while links with relevant philosophical traditions are discussed throughout.
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