Abstract

My central concern is to show that attempts to resolve problems of non-extensionality in abstraction from speech act theory are unsatisfactory. Generally, I shall argue that speech act theory identifies the various units, levels, and dimensions of analysis which are relevant to the problem of non-extensionality. To ignore or underplay this results in interpretations of non-extensionality which are counter-intuitive and plagued with counter-examples. In what follows, I shall first distinguish what I take to be the essential ingredients of the problem of non-extensionality and restrict the primary scope of my discussion to a certain kind of paradigm case, viz., that kind of non-extensional context generated by the use of so-called verbs of propositional attitude. Although other kinds of context must also be reckoned with, I am especially interested in the attitudinal context, because it is here, as I shall try to show, that recent interpretations exhibit a significant philosophical mistake. Then I shall isolate the kind of interpretation I want to emphasize and criticize—one which I label "soft extensionalism." Finally, I shall differentiate those aspects of speech act theory which pertain to non-extensionality and apply them to the paradigm case. This will require a clarification of the role which the locutionary act, the propositional act, and the illocutionary act respectively play in the determination of the referential status of singular terms in linguistic contexts.