Murali Ramachandran

An ‘inverted’ reasoner is someone who finds the inferences we find easy, inversely difficult, and those that we find difficult, inversely easy. The notion was initially introduced by Christopher Cherniak in his book, Minimal Rationality, and appealed to by Stephen Stich in The Fragmentation of Reason. While a number of difficulties have been noted about what reasoning would amount to for such a reasoner, what has not been brought out in the literature is that such a reasoner is in fact logically impossible. This is what I hope to demonstrate in this paper

Aims. Saul Kripke’s (1977) argument defending Russell’s theory of (definite) descriptions (RTD) against the possible objection that Donnellan’s (1966) distinction between attributive and referential uses of descriptions marks a semantic ambiguity has been highly influential.1 Yet, as I hope you’ll be persuaded, Kripke’s line of reasoning— in particular, the ‘thought-experiment’ it involves—has not been duly explored. In section II, I argue that while Kripke’s argument does ward off a fairly ill-motivated ambiguity theory, it is far from clear whether it would succeed against more realistic candidates. If the central point I make in this regard is correct, it tells not only against Kripke’s argument but also against what has become a fairly orthodox line against the ambiguity thesis (as I shall call it). In section III, I compare Kripke’s defence of Russell with his ‘schmidentity’ argument (1980, p. 108), which involves essentially the same kind of thought-experiment. But, as I shall show, the latter argument contains an added twist which converts what otherwise would be merely a defence of one semantic theory into an attack against its rival. In section IV, I argue that the offensive strategy is unsound and attempt to locate its error. I conclude by drawing a (not unfamiliar) moral concerning the semantics—pragmatics distinction.

One of Strawson's objections to Russell's theory of descriptions is that what are intuitively natural and correct utterances of sentences involving incomplete descriptions come out false by RTD. Russellians have responded, not by challenging Strawson's view that these uses are natural and correct, but by embellishing RTD to accommodate these uses. I pursue an alternative line of attack: I argue that there are circumstances in which "we" would find utterances of such sentences unnatural and improper but "RTD" would sanction. So, RTD clashes with ordinary language, as Strawson suggests.

On David Lewis's original analysis of causation, c causes e only if c is linked to e by a chain of distinct events such that each event in the chain (counter-factually) depends on the former one. But this requirement precludes the possibility of late pre-emptive causation, of causation by fragile events, and of indeterministic causation. Lewis proposes three different strategies for accommodating these three kinds of cases, but none of these turn out to be satisfactory. I offer a single analysis of causation that resolves these problems in one go but which respects Lewis's initial insights. One distinctive feature of my account is that it accommodates indeterministic causation without resorting to probabilities.