This paper proposes a new look at the so-called ‘present-perfect puzzle’. I suggest that it is in fact part of a bigger problem, which also involves simple past tenses. I argue that present perfects compete with simple past tenses, and that the distribution of these tenses shows signs of the impact of this competition. The outcome of the competition is argued to be heavily dependent on which of the two tense-forms is the default. A pragmatic theory is proposed which accounts (...) for the reduced distribution of the present perfect in languages like English and (American) Spanish, and the reduced distribution of the simple past tense in languages like French and German. (shrink)

A sentence in the Resultative perfect licenses two inferences: (a) the occurrence of an event (b) the state caused by this event obtains at evaluation time. In this paper I show that this use of the perfect is subject to a large number of distributional restrictions that all serve to highlight the result inference at the expense of the event inference. Nevertheless, only the event inference determines the truth conditions of this use of the perfect, the result inference being a (...) unique type of conventional implicature. I argue furthermore that, since the result state is singular, the event that causes it must also be singular, whereas the Experiential perfect is purely quantificational. But in out-of-the-blue contexts the past tense is also normally interpreted as singular. This leads to a certain amount of competition between the Resultative perfect and the past tense, and it is this competition, I suggest, that maintains the conventional (non-truth conditional) result state inference. (shrink)

Imperatives may be interpreted with many subvarieties of directive force, for example as orders, invitations, or pieces of advice. I argue that the range of meanings that imperatives can convey should be identified with the variety of interpretations that are possible for non-dynamic root modals (what I call ‘priority modals’), including deontic, bouletic, and teleological readings. This paper presents an analysis of the relationship between imperatives and priority modals in discourse which asserts that, just as declaratives contribute to the Common (...) Ground and thus provide information relevant to the interpretation of epistemic modals in subsequent discourse, imperatives contribute to another component of the discourse context, the addressee’s To-Do List, which serves as a contextual resource for the interpretation of priority modals. This analysis predicts that the interpretation of imperatives and modals in discourse is constrained in surprising ways; these predictions are borne out. (shrink)

In the debate about semantic context dependence, various truth-conditional frameworks have been proposed. Indexicalism, associated with e.g. Jason Stanley, accounts for contextual effects on truth conditions in terms of a rich covert syntax. Truth-conditional pragmatics, associated with e.g. François Recanati, does not locate the mechanisms for context dependence in the syntactic structure but provides a more complex semantics. In this dissertation, the hypothesis that indexicalism and truth-conditional pragmatics are empirically equivalent is explored. The conclusion that the hypothesis is correct emerges, (...) when claims and accounts in the debate are made formally precise, within the framework of model-theoretic semantics. -/- . (shrink)

We offer a formal account of the English past tenses. We see the perfect as having reference time at speech time and the preterite as having reference time at event time. We formalize four constraints on reference time, which we bundle together under the term ‘perspective’. Once these constraints are satisfied at the different reference times of the perfect and preterite, the contrasting functions of these tenses are explained. Thus we can account formally for the ‘definiteness effect’ and the ‘lifetime (...) effect’ of the perfect, for the fact that the perfect seems to ‘explain’ something about the present, and that the perfect cannot presuppose a past time point. We explain why perfect and preterite can sometimes be interchangeable, and we offer a solution to the ’present perfect puzzle’. We explain the unacceptability of notorious examples of the perfect such as * Gutenberg has discovered the art of printing . We give greater definition to the familiar notions of ‘current relevance’ and ‘extended now’. (shrink)

Reichenbach's event, reference and speech times are interpreted semantically by stringing and superposing sets of temporal formulae, structured within regular languages. Notions of continuation branches and of inertia, bound (in a precise sense) by reference time, are developed and applied to the progressive and the perfect.

This paper presents a novel semantic analysis of unit names and gradable adjectives, inspired by measurement theory (Krantz et al 1971). Based on measurement theory's typology of measures, I claim that different predicates are associated with different types of measures whose special characteristics, together with features of the relations denoted by unit names, explain the puzzling limited distribution of measure phrases.