Logically, weighting is transitive, but similarity is not, so clustering cannot be either. Entailments must help a child to review attribute lists more efficiently. Children's understanding of exceptions to generic claims precedes their ability to articulate explanations. So agency, as enabling constraint, may show coherent covariation with attributes, as mere extensional, observable effect of intensional entailments.

The topic of temporal meaning in texts has received considerable attention in recent years from scholars in linguistics, logical semantics, cognitive science, and artificial intelligence. Representing Time in Natural Language offers a systematic and detailed account of how we use temporal information contained in a text or in discourse to reason about the flow of time, inferring the order in which events happened when this is not explicitly stated. A new representational system is designed to formalize an appropriately context-dependent notion (...) of situated inference. The Dynamic Aspect Tree, representing temporal dependencies, constitutes a novel and important dynamic temporal logic, one that makes it easy to see "what follows when" from the information given in an ordinary English text. (shrink)

Elementary set theory accustoms the students to mathematical abstraction, includes the standard constructions of relations, functions, and orderings, and leads to a discussion of the various orders of infinity. The material on logic covers not only the standard statement logic and first-order predicate logic but includes an introduction to formal systems, axiomatization, and model theory. The section on algebra is presented with an emphasis on lattices as well as Boolean and Heyting algebras. Background for recent research in natural language semantics (...) includes sections on lambda-abstraction and generalized quantifiers. Chapters on automata theory and formal languages contain a discussion of languages between context-free and context-sensitive and form the background for much current work in syntactic theory and computational linguistics. The many exercises not only reinforce basic skills but offer an entry to linguistic applications of mathematical concepts. For upper-level undergraduate students and graduate students in theoretical linguistics, computer-science students with interests in computational linguistics, logic programming and artificial intelligence, mathematicians and logicians with interests in linguistics and the semantics of natural language. (shrink)

Meaning is made out of the world by our actions in certain situations. But there are so many different things we can do, few of which actually create meaning. Not only do we utter linguistic expressions, but we move, gesture, point; we plan our actions to satisfy particular goals, we form beliefs, presumptions and prejudices, as well as ascribe intentions to other actors. In this paper three ways of acting are singled out for their function in making meaning out of (...) the world: demonstrations, indications and experiments. The paper develops some Wittgensteinean themes, such as the priority of demonstration, the nature of pictorial representations and the relation between interpretation and calculation, in the terms and concepts of Situation Theory. It attempts to weave some important elements of Wittgenstein’s thought in with an account of situated meaning and interpretation, without embarking on any archeological adventure. The paper is intended as a contribution to the philosophical foundations of Situation Theory and a critical commentary to some of its published accounts. Although Situation Theory has been developed with a sharp awareness of its antecedents in Bertrand Russell’s work, as well as its immediate heritage of central aspects of David Kaplan’s account of demonstrative reference, to my knowledge its Wittgensteinean roots have not been traced. The account of demonstrations, indications and experiments advocated here shows not only that important philosophical concerns of Situation Theory have their precursors in Wittgenstein’s work, but also that some of his insights could profitably be absorbed into its new foundations for a theory of meaning. (shrink)

REFERENCES Barwise, J. & R. Cooper (1981) — 'Generalized Quantifiers and Natural Language', Linguistics and Philosophy 4:2159-219. Van Benthem, J. (1983a) — ' Five Easy Pieces', in Ter Meulen (ed.), 1-17. Van Benthem, J. (1983b) ...

Meaning is made out of the world by our actions in certain situations. But there are so many different things we can do, few of which actually create meaning. Not only do we utter linguistic expressions, but we move, gesture, point; we plan our actions to satisfy particular goals, we form beliefs, presumptions and prejudices, as well as ascribe intentions to other actors. In this paper three ways of acting are singled out for their function in making meaning out of (...) the world: demonstrations, indications and experiments. The paper develops some Wittgensteinean themes, such as the priority of demonstration, the nature of pictorial representations and the relation between interpretation and calculation, in the terms and concepts of Situation Theory. It attempts to weave some important elements of Wittgenstein’s thought in with an account of situated meaning and interpretation, without embarking on any archeological adventure. The paper is intended as a contribution to the philosophical foundations of Situation Theory and a critical commentary to some of its published accounts. Although Situation Theory has been developed with a sharp awareness of its antecedents in Bertrand Russell’s work, as well as its immediate heritage of central aspects of David Kaplan’s account of demonstrative reference, to my knowledge its Wittgensteinean roots have not been traced. The account of demonstrations, indications and experiments advocated here shows not only that important philosophical concerns of Situation Theory have their precursors in Wittgenstein’s work, but also that some of his insights could profitably be absorbed into its new foundations for a theory of meaning. (shrink)

Logicians have always found inspiration for new research in the ordinary language that is used on a daily basis and acquired naturally in childhood. Whereas the logical issues in the foundations of mathematics motivated the development of mathematical logic with its emphasis on notions of proof, validity, axiomatization, decidability, consistency, and completeness, the logical analysis of natural language motivated the development of philosophical logic with its emphasis on semantic notions of presupposition, entailment, modality, conditionals, and intensionality. The relation between research (...) programs in both mathematical and philosophical logic and natural language syntax and semantics as branches of theoretical linguistics has increased in importance throughout the last fifty years. This chapter reviews the development of one particularly interesting and lively area of interaction between formal logic and linguistics—the semantics of natural language. Research in this emergent field has proved fruitful for the development of empirically, cognitively adequate models of reasoning with partial information, sharing or exchanging information, dynamic interpretation in context, belief revision and other cognitive processes. (shrink)

Modelling human reasoning characterizes the fundamental human cognitive capacity to describe our past experience and use it to form expectations as well as plan and direct our future actions. Natural language semantics analyzes dynamic forms of reasoning in which the real-time order determines the temporal relations between the described events, when reported with telic simple past-tense clauses. It provides models of human reasoning that could supplement ACT-R models.

In designing stratified models of human language, understanding notions of logical consequence and validity of inference require separating the aspects of meaning that vary between models from logical constants. Modelling meaning requires choices regarding the primitives, where the Fregean program is still offering us the fundamental insights on the role of truth, judgement, and grasping or sharing of thoughts.

Semantic realism fits Millikan's account of kind terms in its focus on information-theoretic abilities and strategic ways of gathering information in human communication. Instead of the traditional logical necessity, we should interpret rigid designation in a dynamic semantics as a legislative act to constrain possible ways in which our belief may change.

In the modular design of generative theory the syntax-semantics interface has accounted all along for meanings at the level of Logical Form. The syntax-pragmatics interface, on the other hand, is the result of what one may call the 'pragmatic turn' in the linguistic theory, where content is partitioned into given and new information. In other words, the structural division of the clause has been subjected to criteria of information, or discourse structure. Both interfaces require a structurally descriptive inventory whose specific (...) shapes can be motivated on theory-internal grounds only. The present collection of original articles develops the concept of these interfaces further. The papers in the first section focus on the syntax-semantics interface, those in the second section on the syntax-pragmatics interface. (shrink)

Validity of dynamic temporal reasoning is semantically characterized for English and Dutch aspectual adverbs in Discourse Representation Theory. This dynamic perspective determines how the content needs to be revised and what information is preserved across updates, when the order of premises is considered relevant. Resetting contextual parameters relies on modelling the basic aspectual polarity transitions and temporal reasoning extensionally. For intensional aspectual adverbials the speaker’s attitudes regarding past alternatives to and possible continuations of the current state come into play. Additional (...) considerations are offered for generalizing this system to the full logical space for linguistic universals, lexicalized quite differently in Dutch and English. (shrink)

This Handbook documents the main trends in current research between logic and language, including its broader influence in computer science, linguistic theory and cognitive science. The history of the combined study of Logic and Linguistics goes back a long way, at least to the work of the scholastic philosophers in the Middle Ages. At the beginning of this century, the subject was revitalized through the pioneering efforts of Gottlob Frege, Bertrand Russell, and Polish philosophical logicians such as Kazimierz Ajdukiewicz. Around (...) 1970, the landmark achievements of Richard Montague established a junction between state-of-the-art mathematical logic and generative linguistic theory. Over the subsequent decades, this enterprise of Montague Grammar has flourished and diversified into a number of research programs with empirical and theoretical substance. This appears to be the first Handbook to bring logic-language interface to the fore. Both aspects of the interaction between logic and language are demonstrated in the book i.e. firstly, how logical systems are designed and modified in response to linguistic needs and secondly, how mathematical theory arises in this process and how it affects subsequent linguistic theory. The Handbook presents concise, impartial accounts of the topics covered. Where possible, an author and a commentator have cooperated to ensure the proper breadth and technical content of the papers. The Handbook is self-contained, and individual articles are of the highest quality. (shrink)

Logically, weighting is transitive, but similarity is not, so clustering cannot be either. Entailments must help a child to review attribute lists more efficiently. Children's understanding of exceptions to generic claims precedes their ability to articulate explanations. So agency, as enabling constraint, may show coherent covariation with attributes, as mere extensional, observable effect of intensional entailments.

The relationships between logic and natural language are multiverse. On the one hand, logic is a theory of argumentation, proving and giving reasons, and such activities are primarily carried out in natural language. This means that logic is, in a certain loose sense, about natural language. On the other hand, logic has found it useful to develop its own linguistic means which sometimes in a sense compete with those of natural language. This has led to the situation where the systems (...) of logic can be taken as interesting "models" of various aspects of natural language. Â Â Â Â Â Â Â The alliance of logic and linguistics has flowered especially from the beginning of the seventies, when scholars like Montague, Lewis, Cresswell, Partee and others showed how semantics of natural language can be explicated with the help certain suitable logical calculi and the corresponding model theory. (Montague went so far as to claim that in view of this, there is no principal difference between natural and formal languages - but this is, as far as I can see, rather misguiding.) Since that time, the interdisciplinary movement of formal semantics (associating not only linguists and logicians, but also philosophers, computer scientists, cognitive psychologists and others) has yielded a rich repertoire of formal theories of natural language, some of them (like Hintikka's game-theoretical semantics or the dynamic logic of Groenendijk and Stokhof) being based directly on logic, others (like the situation semantics of Barwise and Perry or DRT of Kamp) exploiting different formal strategies. Â Â Â Â Â Â Â Moreover, although the enterprise of formal semantics (i.e. of modeling natural language semantics by means of certain formal structures) seems to be the principal point of contact between linguistics and logic, there are also other cooperative enterprises. One of the most fruitful ones seems to be the logical analysis of syntax, which has resulted from elaboration of what was originally called categorial grammar. (However, even this enterprise can be seen as importantly stimulated by Montague.) Â Â Â Â Â Â Â All in all, the region in which logic and theoretical linguistics overlap has grown both in size and fertility.. (shrink)

Solidarity has for a long time been referred to as the core value underpinning European health and welfare systems. But there has been debate in recent years about whether solidarity, with its alleged communitarian content, can be reconciled with the emphasis on individual freedom and personal autonomy. One may wonder whether there is still a place for solidarity, and whether the concept of justice should be embraced to analyse the moral issues regarding access to health care. In this article, I (...) will answer this question by analysing the normative foundations of the concept of justice, followed by a deeper examination of the concept of solidarity in continental philosophy. More specifically, I will compare the philosophical traditions rooted in Kant to approaches rooted in Hegel. In addition, I will present the work of Avishai Margalit on the decent society to criticize a predominantly liberal approach to access to health care. The importance of solidarity lies particularly in its emphasis on relational aspects and the role of recognition in care practices, which are usually ignored in liberal approaches to justice. However, the article will argue that solidarity is not an alternative to a rights-based concept of justice, but must be considered as a necessary complement to it. (shrink)

This article tries to analyze the meaning and relevance of the concept of solidarity as compared to the concept of justice. While ‘justice’ refers to rights and duties , the concept of solidarity refers to relations of personal commitment and recognition . The article wants to answer the question whether solidarity and liberal justice should be seen as mutually exclusive or whether both approaches should be regarded as complementary to each other. The paper starts with an analysis of liberal theories (...) of justice which are followed by an analysis of the descriptive and a moral understanding of the concept of solidarity. The importance of solidarity lies in its relational aspects, particularly its emphasis on cooperation and commonality. The paper argues that while solidarity is more fundamental than justice, both concepts are important for the arrangement of health care practices. The paper gives special attention to the concept of decent care, reflective solidarity and humanitarian solidarity which is seen as fundamental for all health care policies and care practices. (shrink)

This book critically explores and analyses the scientific and ethical debates surrounding cognitive enhancers. Including contributions from neuroscientists, neuropsychopharmacologists, ethicists, philosophers, public health professionals, and policy researchers, the book offers a multidisciplinary, critical consideration of this topic.

Health care policy in the Netherlands has long been guided by the values of solidarity and equality. As a result of several forces, particularly the scarcity of resources, the retreat of the Welfare State and the introduction of market forces in health care, both values are increasingly under strain. Next to solidarity and equality, freedom of choice and financial responsibility are playing an important role in Dutch health care. Consequently, there is a growing division in Dutch heaith care between two (...) tiers, one basic tier giving access to a basic package of services and a luxury tier giving access to a higher quality of care and to services not included in the basic package. The main thesis of the article is that a two-tier system is morally justified on the condition that the basic tier is universally accessible and is based on the value of humanitarian solidarity. (shrink)

This article presents various developments in Dutch health care policy toward a greater role for individual financial responsibility, such as cost-control measures, priority setting, rationing, and market reform. Instead of the collective responsibility that is characteristic of previous times, one can observe in government policies an increased emphasis on the need for individuals to take care of one’s own health and health care needs. Moreover, surveys point to decreasing levels of public support for “unlimited” solidarity and “irresponsible” health behavior. This (...) article attempts to answer the question of how these policies and public attitudes are limiting the ethical principles of solidarity and equal access to care that have long guided Dutch health care policy making. The authors argue that from a moral point of view, the increased emphasis on individual responsibility is acceptable as long as it does not affect solidarity with those weak and vulnerable groups who are not able to take individual responsibility, such as the demented and mentally handicapped. (shrink)