Philip Pettit

If non-consequentialists are to embrace the requirement of universalizability, then they will have to adopt a surprisingly relativistic stance. Not only will they say, in familiar vein, that the premises adduced in moral argument may be only agent-relative in force, that is, may involve the use of an indexical – as in the consideration that this or that option would advance my commitments, discharge my duty, or benefit my children – and may provide reasons only for the indexically relevant agent, in this case me. They will also have to construe the consideration adduced in typical moral conclusions to the effect that this or that option is right or ought to be chosen, or whatever, as itself only agent-relative in force. So at any rate I argue.

Let folk psychology consist in the network of concepts, and associated beliefs, in terms of which we make sense of minded performance.This paper addresses the question of how we, the folk, come to understand those concepts: this, as distinct from the separate question as to how we come to apply them in the interpretation of particular minds, our own and those of others.The argument is that even though the network of concepts is akin to a set of theoretical, interdefined terms, still it is possible to explain how we, the folk, understand them without suggesting that we are proto-scientists. The understanding required can be based on a sort of know-how: that is, a practical, untheoretical, form of knowledge.

If language is to serve the basic purpose of communicating our attitudes, we must be constructed so as to form beliefs in those propositions that we truthfully assert on the basis of careful assent. Thus, other things being equal, I can rely on believing those things to which I give my careful assent. And so my ability to assent or dissent amounts to an ability to make up my mind about what I believe. This capacity, in tandem with a similar capacity in respect of other attitudes, supports three important lessons. It means that I can know what I believe by seeing what commands my assent, that I can put aside the possibility of error in committing myself to holding such a belief, and that I can therefore perform as a person: I can organize my mind around commitments to which others are invited to hold me.

Modal functionalism is the view that talk about possible worlds should be construed as talk about fictional objects. The version of modal fictionalism originally presented by Gideon Rosen adopted a simple prefixing strategy for fictionalising possible worlds analyses of modal propositions. However, Stuart Brock and Rosen himself in a later article have independently advanced an objection that shows that the prefixing strategy cannot serve fictionalist purposes. In this paper we defend fictionalism about possible worlds by showing that there are other strategies besides the prefixing strategy for fictionalising talk about possible worlds, and that these strategies are proof against the objection advanced by Brock and Rosen