Online research in philosophy

In this paper I shall focus on Castaneda's notion of quasi-indicators and I shall defend the following theses: (i) Essential indexicals (‘I’, ‘here’ and ‘now’) are intrinsically perspectival mechanisms of reference and, as such, they are not reducible to any other mechanism reference...

A collection of twelve essays by John Perry and two essays he co-authored, this book deals with various problems related to "self-locating beliefs": the sorts of beliefs one expresses with indexicals and demonstratives, like "I" and "this." Postscripts have been added to a number of the essays discussing criticisms by authors such as Gareth Evans and Robert Stalnaker. Included with such well-known essays as "Frege on Demonstratives," "The Problem of the Essential Indexical," "From Worlds to Situations," and "The Prince and the Phone Booth" are a number of important essays that have been less accessible and that discuss important aspects of Perry's views, referred to as "Critical Referentialism," on the philosophy of language and the philosophy of mind.

I argue against the thesis that the thought expressed by the utterance of an indexical sentence can be re-expressed by means of a quasi-indicator in a belief-ascription. Constructivley, I propose that we describe throught by means of quasi-indicators.

A widely accepted view in the discussion of personal identity is that the notion of psychological continuity expresses a one–many or many–one relation. This belief is unfounded. A notion of psychological continuity expresses a one–many or many–one relation only if it includes, as a constituent, psychological properties whose relation with their bearers is one–many or many–one; but the relation between an indexical psychological state and its bearer when first tokened is not a one–many or many–one relation. It follows that not all types of psychological continuity may take a one–many or many–one form. This conclusion casts doubt on the Lockean approach to the issue, by showing that the notion of psychological continuity Lockeans rely on may not be available.

Indexical beliefs pose a special problem for standard theories of Bayesian updating. Sometimes we are uncertain about our location in time and space. How are we to update our beliefs in situations like these? In a stepwise fashion, I develop a constraint on the dynamics of indexical belief. As an application, the suggested constraint is brought to bear on the Sleeping Beauty problem.

In this paper, I take issue with the familiar view that the problem of the essential indexical is a merely technical problem, which can be solved through a straightforward revision of the familiar model of belief content. (The familiar model just says that the content of belief is a proposition.) I do not object to these technical fixes, but I think they leave some questions unanswered. Specifically, they deny us an attractive account of what it is for different people to completely agree on their conception of what the world is like, according to which complete agreement consists in having beliefs with the same propositional content, but they do not give us anything to replace it with. Here, I consider whether we can say anything general about the relation between my beliefs and your beliefs (including, of course, our indexical beliefs), when you and I completely agree about what the world is like.

Some time ago, John Perry argued that the content of an indexical belief, that is, a belief expressible with a sentence containing an indexical or demonstrative, cannot be a proposition. I consider several of his arguments for this view, and show that they can be extended to show that belief expressible with other non-indexical expressions such as natural kind terms and proper names presents the very same problem for the traditional picture. I then suggest that if indexical belief has any special status, this is not because it has a special kind of content, but rather because action is impossible if agents do not have indexical belief.

In this paper, I argue, contra Perry, that the existence of locating beliefs does not require the abandonment of the analysis of belief as a relation between subjects and propositions. I argue that what the "problem of the essential indexical" reveals is that a complete explanation of behaviour requires both an explanation of the type of behaviour the agent engaged in and an explanation of why she engaged in it in the circumstances that she did. And I develop an account of belief which encompasses both explanatory roles and which still treats belief as a two-place relation between subjects and propositions.

I argue that the best way to solve Russell's problem of the relationship between propositions and their constituents is to think of propositions as properties of worlds. I argue that this view preserves the strengths and avoids some of the weaknesses of the view of the metaphysics of propositions defended by Jeff King in his _The Nature and Structure of Content_, and that it provides an explanation of the representational properties of propositions and the nature of indexical belief. I conclude by discussing some problems about how to think about the semantics of propositional attitude ascriptions, if a view of this sort is correct.