This paper examines the task of understanding dialogues in terms of the mental states of the participating agents. We present a motivating example that clarifies the challenges this problem involves and then outline a theory of dialogue interpretation based on abductive inference of these unobserved beliefs and goals, incremental construction of explanations, and reliance on domain-independent knowledge. After this, we describe UMBRA, an implementation of the theory that embodies these assumptions. We report experiments with the system that demonstrate its ability (...) to accurately infer the conversants’ mental states even when some speech acts are unavailable. We conclude by reviewing related research on dialogue and discussing avenues for future study. (shrink)

This paper examines the task of understanding dialogues in terms of the mental states of the participating agents. We present a motivating example that clarifies the challenges this problem involves and then outline a theory of dialogue interpretation based on abductive inference of these unobserved beliefs and goals, incremental construction of explanations, and reliance on domain-independent knowledge. After this, we describe UMBRA, an implementation of the theory that embodies these assumptions. We report experiments with the system that demonstrate its ability (...) to accurately infer the conversants’ mental states even when some speech acts are unavailable. We conclude by reviewing related research on dialogue and discussing avenues for future study. (shrink)

In philosophical contexts, logical formalisms are often resorted to as a means to render the validity and invalidity of informal arguments formally transparent. Since Oliver and Massey , however, it has been recognized in the literature that identifying valid arguments is easier than identifying invalid ones. Still, any viable theory of adequate logical formalization should at least reliably identify valid arguments. This paper argues that accounts of logical formalization as developed by Blau and Brun do not meet that benchmark. The (...) paper ends by suggesting different strategies to remedy the problem. (shrink)

Arguments from analogy are pervasive in everyday reasoning, mathematics, philosophy, and science. Informal logic studies everyday argumentation in ordinary language. A branch of fuzzy logic, approximate reasoning, seeks to model facets of everyday reasoning with vague concepts in ill-defined situations. Ways of combining the results from these fields will be suggested by introducing a new argumentation scheme—a fuzzy analogical argument from classification—with the associated critical questions. This will be motivated by a case study of analogical reasoning in the virtual friendship (...) debate within information ethics. The virtual friendship debate is a disagreement over whether virtual friendships are genuine friendships. It will be argued that the debate could move away from its current impasse, caused by unproductive metaphysical and logical assumptions, if extant arguments are reinterpreted as fuzzy analogical arguments from classification, and subjected to a new set of critical questions which would replace the quest for facts of essence about friendship with an emphasis on empirical data, persuasion, and definitional power. (shrink)

Predicates like gather and ones like be numerous have both been described as ‘collective predicates,’ since they predicate something of a plurality. The two classes of predicates differ, however, with respect to plural quantifiers, which are grammatical with gather-type predicates but ungrammatical with numerous-type predicates. Here, I show that the gather/numerous opposition derives from mereological properties that are familiar from the domains of telicity and mass/count. I address problems of undergeneration and overgeneration with two technical innovations: first, I weaken the (...) property of divisibility to Champollion’s concept of stratified reference; second, I provide mechanisms to rule out accidental satisfaction of the logical property. More broadly, I place collective predication in a larger context by building empirical connections to mass/count and collectivity across semantic domains. (shrink)

This paper pursues some of the consequences of the idea that there are (at least) two sources for distributive/cumulative interpretations in English. One source is lexical pluralization: All predicative stems are born as plurals, as Manfred Krifka and Fred Landman have argued. Lexical pluralization should be available in any language and should not depend on the particular make-up of its DPs. I suggest that the other source of cumulative/distributive interpretations in English is directly provided by plural DPs. DPs with plural (...) agreement features can ‘release’ those features to pluralize adjacent verbal projections. If there is a lexical source for distributive/cumulative interpretations, there should be instances of such interpretations with singular DPs. But there should also be cases of distributive/cumulative interpretations that require the presence of DPs with plural agreement morphology. (shrink)

Along with many other languages, English has a relatively straightforward grammatical distinction between mass-occurrences of nouns and their countoccurrences. As the mass-count distinction, in my view, is best drawn between occurrences of expressions, rather than expressions themselves, it becomes important that there be some rule-governed way of classifying a given noun-occurrence into mass or count. The project of classifying noun-occurrences is the topic of Section II of this paper. Section III, the remainder of the paper, concerns the semantic differences between (...) nouns in their mass-occurrences and those in their count-occurrences. As both the name view and the mixed view are, in my opinion, subject to serious difficulties discussed in Section III.1,I defend a version of the predicate view. Traditionally, nouns in their singular count-occurrences are also analyzed as playing the semantic role of a predicate. How, then, does the predicate view preserve the intuitive difference between nouns in their mass- and those in their count-occurrences? I suggest, in Section III.2, that there are different kinds of predicates: mass-predicates, e.g. ‘is hair’, singular count-predicates, e.g. ‘is a hair’, and plural count-predicates, e.g. ‘are hairs’. Mass-predicates and count-predicates, in my view, are not reducible to each other. The remainder of Section III takes a closer look at the differences and interrelations between these different kinds of predicates. Mass-predicates and count-predicates differ from each other truth-conditionally, and these truth-conditional differences turn out to have interesting implications, in particular concerning the part-whole relation and our practices of counting. But mass- and count-predicates are also related to each other through systematic entailment relations; these entailment relations are examined in Section III.4. (shrink)

In this paper I propose a novel treatment of generic sentences, which proceeds by means of different levels of analysis. According to this account, all generic sentences (I-generics and D-generics alike) are initially treated in a uniform manner, as involving higher-order predication (following the work of George Boolos, James Higginbotham and Barry Schein on plurals). Their non-uniform character, however, re-emerges at subsequent levels of analysis, when the higher-order predications of the first level are cashed out in terms of quantification over (...) individuals: this last step, I suggest, involves knowledge concerning the lexical meaning of the predicates in question. (shrink)

This paper discusses Japanese numeral quantifiers that are used to count individuals, rather than quantities, of a substance, and which may occur either as floated or non-floated quantifiers. It is argued that such morphologically complex numeral quantifiers (NQs) are semantically complex as well: The numeral within the NQ is the quantifier itself, the classifier its domain of quantification. The proposed analysis offers a unified semantic account of floated and non-floated NQs that adheres closely to their surface morphology and syntax. It (...) explains why floated NQs generally force a distributive reading. It covers both classifiers construed with objects and classifiers construed with events. In addition, it captures the fact that the classifier must agree with the NP it is construed with. (shrink)

Topics in Cognitive Science, Volume 13, Issue 1, Page 187-205, January 2021.

Kim :1099–1112, 2013) defends a logicist theory of numbers. According to him, numbers are adverbial entities, similar to those denoted by “frequently” and “at 100 mph”. He even introduces new adverbs for numbers: “1-wise”, “2-wise”, and so on. For example, “Fs exist 2-wise” means that there are two Fs. Kim claims that, because we can derive Dedekind–Peano axioms from his definition of numbers as adverbial entities, it is a new form of logicism. In this paper, I will, however, argue that (...) his theory is vulnerable to an analogue of the so-called Bad Company objection to neo-Fregeanism. This means that we cannot be sure that numbers are actually given to us by Kim’s definition; for, we don’t know whether it is indeed a good definition. So, unless Kim, or somebody else, provides a demarcation criterion between good and bad adverbial definitions, Kim’s theory will remain incomplete. (shrink)

Donald Davidson established causalism, i.e. the view that reasons are causes and that action explanation is causal explanation, as the dominant view within contemporary action theory. According to his “master argument”, we must distinguish between reasons the agent merely has and reasons she has and which actually explain what she did, and the only, or at any rate the best, way to make the distinction is by saying that the reasons for which an agent acts are causes of her action. (...) “Davidson's challenge” to non‐causalists is to come up with an alternative, more convincing, way of drawing the distinction. In this paper, I argue that G.E.M. Anscombe and G.H. von Wright offer such an alternative. Moreover, I argue that Davidson's own account of interpretation makes no use of his causalist claim. (shrink)

Artificial Intelligence (AI) pervades humanity in 2022, and it is notoriously difficult to understand how certain aspects of it work. There is a movement—_Explainable_ Artificial Intelligence (XAI)—to develop new methods for explaining the behaviours of AI systems. We aim to highlight one important philosophical significance of XAI—it has a role to play in the elimination of vagueness. To show this, consider that the use of AI in what has been labeled _surveillance capitalism_ has resulted in humans quickly gaining the capability (...) to identify and classify most of the occasions in which languages are used. We show that the knowability of this information is incompatible with what a certain theory of vagueness—_epistemicism_—says about vagueness. We argue that one way the epistemicist could respond to this threat is to claim that this process brought about the end of vagueness. However, we suggest an alternative interpretation, namely that epistemicism is false, but there is a weaker doctrine we dub _technological epistemicism_, which is the view that vagueness is due to ignorance of linguistic usage, but the ignorance can be overcome. The idea is that knowing more of the relevant data and how to process it enables us to know the semantic values of our words and sentences with higher confidence and precision. Finally, we argue that humans are probably not going to believe what future AI algorithms tell us about the sharp boundaries of our vague words unless the AI involved can be explained in terms understandable by humans. That is, if people are going to accept that AI can tell them about the sharp boundaries of the meanings of their words, then it is going to have to be XAI. (shrink)

In the past 60 years or so, the philosophical subject of artistic expression has generally been handled as an inquiry into the artistic expression of emotion. In my view this has led to a distortion of the relevant territory, to the artistic expression of feeling’s too often being overlooked. I explicate the emotion-feeling distinction in modern terms, and urge that the expression of feeling is too central to be waived off as outside the proper philosophical subject of artistic expression. Restricting (...) the discussion to the art of painting, I sketch a partial psychological model for the exrtistic expression of feelipression of feeling. Although the feeling-emotion contrast is seldom made clear in their writings, I stress that many, or even most of the eminent pre-1960’s voices in aesthetics and art criticism—Croce, Dewey, Langer, Bosanquet, Berenson and others—would more or less agree that feeling is no less important for expression than emotion, and indeed can be interpreted as anticipating many points that I set forth. (shrink)

La philosophie analytique de l'action se réclame du langage ordinaire de l'action comme une des sources de ses data philosophiques. Elle se propose d'en examiner le fonctionnement, d'en extraire les concepts clés, de caractériser les formes de propositions dans lesquelles s'expriment nos actions et notre façon spontanée de les comprendre, d'examiner l'articulation propre aux stratégies d'action et au discours qui les justifie, et de faire des « proposals » pour la construction d'une théorie de l'action. En somme, il s'agit d'ériger (...) le langage ordinaire en instance de contrôle aussi bien sur le plan du traitement de problèmes philosophiques que sur celui de la construction de méta-théories des sciences de l'homme. Ce travail sur le langage de l'action peut revêtir plusieurs fonctions: fonction de clarification ou de détection de confusions, fonction thérapeutique pour guérir le langage de maladies philosophiques, c'est-à-dire des pseudo-problèmes, fonction heuristique pour prescrire une diète appropriée au traitement des perplexités philosophiques qui surgissent « quand le langage tourne à vide, non quand il travaille », pour employer le mot de Wittgenstein. (shrink)

Here, we defend the thesis whereby the event plays a main role of sense in the meaning of certain sentences. This thesis is based on the one hand on recent work in the metaphysics of so-called “happening” entities, which has led to a distinction between concrete physical processes and abstract events, the latter being conceived as psychological constructs accounting for stabilities or changes in the world. Furthermore, we look back at the work on intentionality carried out in the Brentanian school (...) at the turn of the 20th century and we relate abstract events to the mental states of affairs studied by Twardowski but which were then neglected by contemporary philosophers of language. Abstract events, thus characterized, have the contingent property of occurring, when facts obtain and realize them. We suggest that the facts in question correspond to Wittgensteinian states of affairs. (shrink)

The empirical nature of our understanding of language is explored. I first show that there are several important and different distinctions between tacit and accessible awareness. I then present empirical evidence concerning our understanding of language. The data suggests that our awareness of sentence-meanings is sometimes merely tacit according to one of these distinctions, but is accessible according to another. I present and defend an interpretation of this mixed view. The present project is shown to impact on several diverse areas, (...) including inferential role semantics and holism, the nature of learning, and the role of linguistics in the law. (shrink)

This paper deals with a series of semantic contrasts between the copula be and the preposition as, two functional elements that both head elementary predication structures. It will be argued that the meaning of as is a type lowering device shifting the meaning of its complement NP from the type of generalized quantifiers to the type of properties (where properties are conceived as relations between individuals and situations), while the copula be induces a type coercion from (partial) situations to (total) (...) possible worlds. Paired with van der Sandt's (1992) theory of presupposition accommodation, these assumptions will account for the observed contrasts between as and be. (shrink)

Statements about the behavior of biochemical entities (e.g., about the interaction between two proteins) abound in the literature on molecular biology and are increasingly becoming the targets of information extraction and text mining techniques. We show that an accurate analysis of the semantics of such statements reveals a number of ambiguities that have to be taken into account in the practice of biomedical ontology engineering: Such statements can not only be understood as event reporting statements, but also as ascriptions of (...) dispositions or tendencies that may or may not refer to collectives of interacting molecules or even to collectives of interaction events. (shrink)

: Consider mental states of the type that relate a subject to a content expressed by a sentence. I propose that some of these states necessarily include as constituents of their contents the states themselves. These reflexive states arise when one locates a content as belonging, for example, to one's own present or past. That content is then a tense% thought, ordering one's present state with respect to the content. Anaphoric cross‐reference between an event or state and a constituent of (...) its own content is responsible, I argue, for the phenomenon of sequence of tense in English. Conversely, the fact that some states are necessarily reflexive supports the view that the elaborations of logical form that account for sequence of tense are no mere artefact of semantics, but even intrinsic to some of our utterances and thoughts. (shrink)

Is there a principled difference between entailments in natural language that are valid solely in virtue of their form or structure and those that are not? This paper advances an affirmative answer to this question, one that takes as its starting point Gareth Evans’s suggestion that semantic theory aims to carve reality at the joints by uncovering the semantic natural kinds of the language. I sketch an Evans-inspired account of semantic kinds and show how it supports a principled account of (...) structural entailment. I illustrate the account by application to a case study involving the entailment properties of adverbs; this involves developing a novel proposal about the semantics for adverbs like ‘quickly’ and ‘slowly’. In the course of the discussion I explore some implications of the account for the place of model-theoretic tools in natural language semantics. (shrink)

Notice that each of (1)–(4) is an instance of a more general pattern. For example, we could replace ‘black’ in (1) with any of a wide range of other adjectives such as ‘furry’ or ‘hungry’ or ‘three-legged’, without rendering the entailment invalid or any less obvious. Similarly, there are a number of verbs that occur in entailments parallel to (3): ‘Moe boiled the water; so the water boiled’; ‘Bart blew up the school; so the school blew up’; ‘Homer sank the (...) boat; so the boat sank’ and so on. (shrink)

I present a view of activity, taking it that an agent is engaged in activity so long as an action of hers is occurring. I suggest that this view (a) helps in understanding what goes wrong in an argument in Thompson (2008) known sometimes as the ‘initial segment argument’, and (b) enables us to see that there could be an intelligible conception of what is basic when agents' knowledge is allowed into an account of that.

Contemporary literature in philosophy of action seems to be divided overthe place of action in the natural causal world. I think that a disagreementabout ontology underlies the division. I argue here that human action isproperly understood only by reference to a category of process or activity,where this is not a category of particulars.

The symbolic paraphrase of 'because' sentences suggested by Frege, which is still widely accepted, will be gradually developed into a more adequate, though much more complicated, form. Out of the different types of such sentences, the 'for the only reason that' type will be given especial consideration. Furthermore, it will be expounded that contrary-to-fact conditionals may function either as 'for the only reason that' explanations, or as 'for at least the reason that' explanations, or as arguments, the difference being dependent (...) partly on certain temporal characteristics of their constituents and partly on the pragmatic features of the speech act situation. Consequently, counterfactuals have no definite logical structure, which is a reason, hitherto unnoticed, why they cannot be used in defining dispositional predicates. It will be shown, however, that 'for the only reason that' explanations can serve this purpose quite properly. (shrink)

There is a tradition, tracing back to Kant, of recasting metaphysical questions as questions about the utility of a conceptual scheme, linguistic framework, or methodological rule for achieving some particular end. Following in this tradition, I propose a ‘means-ends metaphysics ’, in which one rigorously demonstrates the suitability of some conceptual framework for achieving a specified goal. I illustrate this approach using a debate about the nature of events. Specifically, the question is whether the time at which an event occurs (...) is an essential property of that event. I argue that this question is naturally transformed into a question about the methodology of causal modeling. In this new framework, the question concerns what kind of variables to use to represent the effects of potential interventions on a system. This question has a demonstrably correct answer, which sheds new light on the original question. (shrink)

European Journal of Philosophy, Volume 30, Issue 1, Page 245-258, March 2022.

After reviewing some major features of theinteractions between Linguistics and Philosophyin recent years, I suggest that the depth and breadthof current inquiry into semanticshas brought this subject into contact both with questionsof the nature of linguistic competence and with modern andtraditional philosophical study of the nature ofour thoughts, and the problems of metaphysics.I see this development as promising for thefuture of both subjects.

I argue for two claims: that the ordinary English truth predicate is a gradable adjective and that truth is a property that comes in degrees. The first is a semantic claim, motivated by the linguistic evidence and the similarity of the truth predicate’s behavior to other gradable terms. The second is a claim in natural language metaphysics, motivated by interpreting the best semantic analysis of gradable terms as applied to the truth predicate. In addition to providing arguments for these two (...) claims, I draw out consequences for debates about deflationism and truth-based analyses of notions such as assertion and logical consequence. (shrink)

Building on two nonproblematic claims, I argue for a qualified endorsement of Hume's intuition that there must be a time-difference between cause and effect. Those claims are: (i) that the statement 'A caused B' is meaningful only if we have a criterion for saying 'A' and 'B' refer to distinct events; and (ii) that an adequate view of what it is to be an event must illuminate the enterprise of seeking to establish a singular causal statement. Specifically, I argue there (...) must be a time-difference when cause and effect are modifications of the same physical object. (shrink)

Work on the nature and scope of formal logic has focused unduly on the distinction between logical and extra-logical vocabulary; which argument forms a logical theory countenances depends not only on its stock of logical terms, but also on its range of grammatical categories and modes of composition. Furthermore, there is a sense in which logical terms are unnecessary. Alexandra Zinke has recently pointed out that propositional logic can be done without logical terms. By defining a logical-term-free language with the (...) full expressive power of first-order logic with identity, I show that this is true of logic more generally. Furthermore, having, in a logical theory, non-trivial valid forms that do not involve logical terms is not merely a technical possibility. As the case of adverbs shows, issues about the range of argument forms logic should countenance can quite naturally arise in such a way that they do not turn on whether we countenance certain terms as logical. (shrink)

Our ability to tell stories about ourselves has captivated many theorists, and some have taken these developments for an opportunity to answer long-standing questions about the nature of personhood. In this essay I employ two skeptical arguments to show that this move was a mistake. The first argument rests on the observation that storytelling is revisionary. The second implies that our stories about ourselves are biased in regard to our existing self-image. These arguments undercut narrative theories of identity, but they (...) leave room for a theory of narrative self-knowledge. The theory accommodates the first skeptical argument because there are event descriptions with retrospective assertibility conditions, and it accommodates the second argument by denying us epistemic privilege in regard to our own past. The result is that we do know our past through storytelling, but that it is a contingent feature of some of our stories that they are about ourselves. (shrink)

Metaphilosophy, Volume 53, Issue 1, Page 3-16, January 2022.

Jennifer Hornsby's account of human action frees us from the temptation to think of the person who acts as 'doing' the events that are her actions, and thereby removes much of the allure of 'agent causation'. But her account is spoiled by the claim that physical actions are 'tryings' that cause bodily movements. It would be better to think of physical actions and bodily movements as identical; but Hornsby refuses to do this, seemingly because she thinks that to do so (...) would be to endorse the so-called 'standard causal story'. But Hornsby misses a possibility here, for we can insist on this identity claim without endorsing the standard story if we embrace an account which parallels the disjunctive account in the philosophy of perception. This will leave us with a picture of physical action that saves the insights of Hornsby's account without succumbing to its distortions. (shrink)

Crosslinguistically, the same modal words can be used to express a wide range of interpretations. This crosslinguistic trend supports a Kratzerian analysis, where each modal has a core lexical entry and where the difference between an epistemic and a root interpretation is contextually determined. A long-standing problem for such a unified account is the equally robust crosslinguistic correlation between a modal’s interpretation and its syntactic behavior: epistemics scope high (in particular higher than tense and aspect) and roots low, a fact (...) which has led to proposals that hardwire different syntactic positions for epistemics and roots (cf. Cinque’s hierarchy). This paper argues that the range of interpretations a modal receives is even more restricted: a modal must be keyed to certain time-individual pairs, but not others. I show that this can be captured straightforwardly by minimally modifying the Kratzerian account: modals are relative to an event—rather than a world—of evaluation, which readily provides a time (the event’s running time) and (an) individual(s) (the event’s participants). I propose that this event relativity of modals can in turn explain the correlation between type of interpretation and syntactic position, without stipulation of an interpretation-specific height for modals. (shrink)