Online research in philosophy

The AGM (Alchourrón-GÄrdenfors-Makinson) model of belief change is extended to cover changes on sets of beliefs that arenot closed under logical consequence (belief bases). Three major types of change operations, namely contraction, internal revision, and external revision are axiomatically characterized, and their interrelations are studied. In external revision, the Levi identity is reversed in the sense that onefirst adds the new belief to the belief base, and afterwards contracts its negation. It is argued that external revision represents an intuitively plausible way of revising one's beliefs. Since it typically involves the temporary acceptance of an inconsistent set of beliefs, it can only be used in belief representations that distinguish between different inconsistent sets of belief.

Belief and its benefits -- Belief, reason, goodness -- Belief and the unknown -- Obstacles to belief -- Belief and meaning -- Learning to believe -- Believing and living.

What, according to proponents of doxastic deontologism, is responsible belief? In this paper, we examine two proposals. Firstly, that responsible belief is blameless belief (a position we call DDB) and, secondly, that responsible belief is praiseworthy belief (a position we call DDP). We consider whether recent arguments in favor of DDP, mostly those recently offered by Brian Weatherson, stand up to scrutiny and argue that they do not. Given other considerations in favor of DDP, we conclude that the deontologist should maintain that doxastic responsibility is a concept about freedom from appropriate blame.

Non language-using animals cannot have beliefs, because believing entails the ability to distinguish true from false beliefs and also the ability to distinguish changes in belief from changes in the world. For these abilities we need both the fixation of belief and counter-factual thought, for both of which language is necessary. The argument of the paper extends Davidson's argument to the same conclusion (which is found wanting). But denying beliefs to animals has no moral implications.

In this paper I characterize the problem of first-person authority as it confronts the proponent of the belief box conception of belief, and I develop the groundwork for a belief box account of that authority. If acceptable, the belief box account calls into question (by undermining a popular motivation for) the thesis that first-person authority is not to be traced to a truth-tracking relation between first-person opinions themselves and the beliefs which they are about.

In 'Belief-In and Belief in God' ("Religious Studies", 28, 1992), J. N. Williams suggests that belief in God cannot be rational unless one has rational beliefs that God exists. While agreeing with his conclusion (though not with his statement of it), I disagree at almost every step with his method of arriving at it. In particular I suggest that Williams goes astray concerning the dual aspect of belief in, the nature of performatives, the arousal of belief states, and the correct account of belief in God.

This paper discusses an "expressive constraint" on accounts of thought and language which requires that when a speaker expresses a belief by sincerely uttering a sentence, the utterance and the belief have the same content. It will be argued that this constraint should be viewed as expressing a conceptual connection between thought and language rather than a mere empirical generalization about the two. However, the most obvious accounts of the relation between thought and language compatible with the constraint (giving an independent account of one of either linguistic meaning or thought content and understanding the other in terms of it) both face serious difficulties. Because of this, the following will suggest an alternative picture of the relation between thought and language that remains compatible with the constraint.