Online research in philosophy

A number of authors have recently developed and defended various versions of ‘normative essentialism’ about the mental, i.e. the claim that propositional attitudes are constitutively or essentially governed by normative principles. I present two arguments to the effect that this claim cannot be right. First, if propositional attitudes were essentially normative, propositional attitude ascriptions would require non-normative justification, but since this is not a requirement of folk-psychology, propositional attitudes cannot be essentially normative. Second, if propositional attitudes were essentially normative, propositional attitude ascriptions could not support normative rationality judgments, which would remove the central appeal of normative essentialism.

Theories that seek to explain the status of psychological states experienced in fictional contexts either claim that those states are special propositional attitudes specific to fictional contexts (make-believe attitudes), or else define them as normal propositional attitudes by stretching the concept of a propositional attitude to include ‘objectless’ states that do not imply constraints such as truth or satisfaction. I argue that the first theory is either vacuous or false, and that the second, by defining the reality of the states in question only nominally, risks having a result similar to the first. Then I put forward an explanation of how propositional attitudes function in fictional contexts which meets the following requirements: (i) does not postulate the existence of attitudes specific to or definitive of fictionality; (ii) does not imply that we transgress our knowledge of the ontological claims of fictions for some attitudes (for example, fear) but not others (belief); (iii) explains how we can adopt normal propositional attitudes towards fictions; (iv) allows explanation of how attitudes adopted during fictional response connect or are relevant to our broader systems of belief and volition.

How can the propositional attitudes of several individuals be aggregated into overall collective propositional attitudes? Although there are large bodies of work on the aggregation of various special kinds of propositional attitudes, such as preferences, judgments, probabilities and utilities, the aggregation of propositional attitudes is seldom studied in full generality. In this paper, we seek to contribute to filling this gap in the literature. We sketch the ingredients of a general theory of propositional attitude aggregation and prove two new theorems. Our first theorem simultaneously characterizes some prominent aggregation rules in the cases of probability, judgment and preference aggregation, including linear opinion pooling and Arrovian dictatorships. Our second theorem abstracts even further from the specific kinds of attitudes in question and describes the properties of a large class of aggregation rules applicable to a variety of belief-like attitudes. Our approach integrates some previously disconnected areas of investigation.

How can the propositional attitudes of several individuals be aggregated into overall collective propositional attitudes? Although there are large bodies of work on the aggregation of various special kinds of propositional attitudes, such as preferences, judgments, probabilities and utilities, the aggregation of propositional attitudes is seldom studied in full generality. In this paper, we seek to contribute to …lling this gap in the literature. We sketch the ingredients of a general theory of propositional attitude aggregation and prove two new theorems. Our …rst theorem simultaneously characterizes some prominent aggregation rules in the cases of probability, judgment and preference aggregation, including linear opinion pooling and Arrovian dictatorships. Our second theorem abstracts even further from the speci…c kinds of attitudes in question and describes the properties of a large class of aggregation rules applicable to a variety of belief-like attitudes. Our approach integrates some previously disconnected areas of investigation.

Propositional attitudes are often classified as non-phenomenal mental states. I argue that there is no good reason for doing so. The unwillingness to view propositional attitudes as being essentially phenomenal stems from a biased notion of phenomenality, from not paying sufficient attention to the idioms in which propositional attitudes are usually reported, from overlooking the considerable degree to which different intentional modes can be said to be phenomenologically continuous, and from not considering the possibility that propositional attitudes may be transparent, just like sensations and emotions are commonly held to be: there may be no appropriate way of describing their phenomenal character apart from describing the properties and objects they represent.

Some twenty years ago, semanticists of natural language came to be overwhelmed by the problem of semantic analysis of belief sentences (and sentences reporting other kinds of propositional attitudes): the trouble was that sentences of the shapes X believes that A and X believes that B appeared to be able to have different truth values even in cases when A and B shared the same intension, i.e. were, from the viewpoint of intensional semantics, synonymous 1 . Thus, taking intensional semantics for granted, belief sentences appeared to violate the principle of intersubstitutivity of synonyms. The verdict of the gurus of intensional semantics was that hence intensional semantics is inadequate, or at least insufficient for the purposes of analysis of propositional attitudes; and that we need a kind of a ‘hyperintensional semantics’.

This book is about beliefs, language, communication and cognition. It deals with the fundamental issue of the interpretation of the speaker's utterance expressing a belief and reporting on beliefs of other people in the form of oratio obliqua. The main aim of the book is to present a new account of the problem of interpreting utterances expressing beliefs and belief reports in terms of an approach called Default Semantics.

A prospective introduction -- The received view -- Troubles with the received view -- Are propositional attitudes relations? -- Foundations of a measurement-theoretic account of the attitudes -- The basic measurement-theoretic account -- Elaboration and explication of the proposed measurement-theoretic account.