Provided we agree about the thing, it is needless to dispute about the terms. —David Hume, A treatise of human nature, Book 1, section VIIMap-like representations are frequently invoked as an alternative type of representational vehicle to a language of thought. This view presupposes that map-systems and languages form legitimate natural kinds of cognitive representational systems. I argue that they do not, because the collections of features that might be taken as characteristic of maps or languages do not themselves provide (...) scientifically useful information above and beyond what the individual features provide. To bring this out, I sketch several allegedly distinctive features of maps, and show how they can easily be grafted onto a simple logical language, resulting in a hybrid “manguage.” The ease with which these linguistic and map-like properties can be integrated into a single representational system raises the question of what work broader categories like language and map are doing. I maintain that, as an empirical matter of fact, they serve no particular purpose in cognitive science, and thus do not characterize distinct kinds of cognitive architectures. (shrink)

Gareth Evans proposes that there are semantic natural kinds of words. In his development of this theory, he argues for two constraints on the identification of these kinds. I argue that neither of these constraints are justified. Furthermore, my argument against Evans’ second constraint constitutes a direct argument for the existence of semantic natural kinds, something Evans himself never offers. I conclude by sketching some positive details of a more plausible theory of semantic natural kinds.

The Swiss Cantons had no greater admirer in the eighteenth-century than the French political thinker Gabriel Bonnot de Mably. The feeling was mutual, at least to some extent, since the Bernese Patriotic Society awarded its first prize in 1763 to Mably, for his dialogue Entretiens de Phocion. The prize then led to an exchange of letters, stretching across some two decades, with Daniel Fellenberg, founder of the Patriotic society—the most important block of Mably's correspondence to have survived. This essay considers (...) the 1763 prize and the correspondence with Fellenberg for the light they cast both on Mably and on Bernese participation in the wider currents of eighteenth-century thought. (shrink)

Last year, Andreas Kalyvas and Ira Katznelson published a brief, bold book on a topic from which historians of political thought have tended to shy away, curiously enough—the relations between republicanism and liberalism as political ideologies in the age of the American and French Revolutions. Liberal Beginnings: Making a Republic for the Moderns is relentlessly polemical, blaming this neglect on the historians and theorists responsible for resurrecting the early modern republican tradition over the last few decades. Pocock, Skinner, Wood, Petit, (...) and more are assailed for having indulged in what Kalyvas and Katznelson call “republican nostalgia”—that is, for having wrongly presented republicanism as an alternative to modern liberalism, rather than its parent and precursor. Instead, the authors of Liberal Beginnings set out to show the ways in which republicanism evolved into liberalism, in and through the works of a set of leading thinkers—Smith, Ferguson, Paine, Madison, Staël, and Constant. Their story has a happy ending. Whatever was valuable and actual in republicanism was smoothly incorporated into early liberalism, for which they turn the dictionary inside out in search of approbative adjectives—“situated,” “thick,” “sturdy,” “confident,” “open,” “immanent,” “heterogeneous,” and “syncretic.” How persuasive is their account? Not a few readers will detect a hint of protesting too much in this kind of cheerleading. “Thick,” “sturdy,” and “confident” are surely not the first terms to spring to mind in regard to this gallery of thinkers, Staël and Constant least of all. It also seems clear that Kalyvas's and Katznelson's coverage of French thought, confined almost entirely to that pair, is too cursory to sustain their case. At one end, Montesquieu and Rousseau, the titans who together defined republicanism for the revolutionary generation, make only the most fleeting of appearances in Liberal Beginnings . At the other, Tocqueville, acknowledged on all sides as the master thinker of French liberalism, is missing altogether. Nevertheless, the attempt at treating anglophone and French thinkers within a single interpretative framework is in itself a virtually unprecedented feat, for which Kalyvas and Katznelson should be congratulated. For who could doubt that they are on exactly the right path in chasing their prey onto French soil? (shrink)

This is an intellectual biography of Gabriel Bonnot de Mably (1709-85), who emerges as a central figure in the history of republican thought in the era of the Enlightenment and the French Revolution. Although Mably, whose career as a historian and political theorist stretched from 1740 to the eve of the French Revolution, clearly played a major role in the intellectual history of his era, there has been no study of his life and thought in English for nearly seventy years. (...) This study sets forth a different reading of Mably's thought, one that shows him to be a classical republican, in the sense this term has acquired in recent years for students of early modern political thought. Mably was the author of the most comprehensive and influential body of republican thought produced in eighteenth-century France. This is explored in a final chapter, which draws some conclusions about the character of classical republicanism in France. (shrink)

This article argues that the much-maligned ‘notational variants’ of a given formal linguistic theory play a role similar to alternative numerical measurement scales. Thus, they can be used to identify the invariant components of the grammar; i.e., those features that do not depend on the choice of empirically equivalent representation. Treating these elements as the ‘meaningful’ structure of language has numerous consequences for the philosophy of science and linguistics. I offer several such examples of how linguistic theorizing can profit from (...) adopting a measurement-theoretic viewpoint. The first concerns a measurement-theoretic response to a famous criticism of Quine's. Others follow from issues of simplicity in the current biolinguistics program. An unexpected similarity with behaviorist practices is also uncovered. I then argue that managable and useful steps can be taken in this area. (shrink)

The structure of words is often thought to provide important evidence regarding the structure of concepts. At the same time, most contemporary linguists posit a great deal of structure in words. Such a trend makes some atomists about concepts uncomfortable. The details of linguistic methodology undermine several strategies for avoiding positing structure in words. I conclude by arguing that there is insufficient evidence to hold that word-structure bears any interesting relation to the structure of concepts.

A variety of inaccurate claims about Gold's Theorem have appeared in the cognitive science literature. I begin by characterizing the logic of this theorem and its proof. I then examine several claims about Gold's Theorem, and I show why they are false. Finally, I assess the significance of Gold's Theorem for cognitive science.

Reverse Compositionality (RC) is the thesis that one understands a complex expression only if one understands its parts. I argue that this thesis is false for natural languages. I then argue that the phenomenon that motivates the thesis is more likely to be a fact about human sentence-processing than linguistic understanding per se. Finally, I argue that RC is not useful in the debates about prototype-style theories of concepts in which it figures heavily.

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)

We examine the pros and cons of color realism, exposing some desiderata on a theory of color: the theory should render colors as scientifically legitimate and correctly individuated, and it should explain how we have veridical color experiences. We then show that these desiderata can by met by treating colors as properties of the special sciences. According to our view, some of the major as properties of the special sciences. According to our view, some of the major disputes in the (...) literature about color -- anti-realism versus dispositionalism versus reductionism -- are not well-founded at this stage of scientific inquiry. Our account of color is designed to be of use in the sciences and as such is driven largely by considerations of what the various sciences need in order to proceed appropriately. We argue that a scientific theory of colors need not regard colors as anything more than high-level statistical constructs built out of correlations between color experiences and other phenomena. (shrink)

Famously, scientific theories are underdetermined by their evidence. This occurs in the factor analytic model, which is often used to connect concrete data to hypothetical notions. After introducing FA, three general topics are addressed. Underdetermination: the precise reasons why FA is underdetermined illuminates various claims about underdetermination, abduction, and theoretical terms. Uncertainties: FA helps distinguish at least four kinds of uncertainties. The prevailing practice, often encoded in statistical software, is to ignore the most difficult kinds, which are essential to FA's (...) underdetermination. What to do: some suggestions for dealing with these hardest types of uncertainty are offered. (shrink)

Methodological dualism in linguistics occurs when its theories are subjected to standards that are inappropriate for them qua scientific theories. Despite much opposition, methodological dualism abounds in contemporary thinking. In this paper, I treat linguistics as a scientific activity and explore some instances of dualism. By extracting some ubiquitous aspects of scientific methodology from its typically quantitative expression, I show that two recent instances of methodologically dualistic critiques of linguistics are ill-founded. I then show that there are nonetheless some divergences (...) between linguistic and other ordinary scientific methods, reflecting yet a third instance of methodological dualism. (shrink)

A common assumption in metaphysics and the philosophy of language is that the general structure of language displays the general metaphysical structure of the things we talk about. But expressions can easily be imperfect representations of what they are about. After clarifying this general point, I make a case study of a recent attempt to semantically analyze the nature of knowledge-how. This attempt fails because there appears to be no plausible bridge from the linguistic structure of knowledge-how reports to knowledge-how (...) itself. I then gesture at some other places where the connection between linguistics and metaphysics is commonly, but illegitimately, assumed. (shrink)

Following Aristotle (who himself was following Parmenides), philosophers have appealed to the distributional reflexes of expressions in determining their semantic status, and ultimately, the nature of the extra-linguistic world. This methodology has been practiced throughout the history of philosophy; it was clarified and made popular by the likes of Zeno Vendler and J.L. Austin, and is realized today in the toolbox of linguistically minded philosophers. Studying the syntax of natural language was fueled by the belief that there is a conceptually (...) tight connection between the syntax of our language and its semantics, and the belief that there is a similarly tight connection between the semantics of our language and metaphysical facts about the world. We are less confident than our colleagues about the relation syntax has to semantics and metaphysics. In particular, we do not believe that the current status of theoretical syntax (or semantics or metaphysics) provides much support for either of the above two beliefs. We will illustrate our view with a case study regarding the status of complex demonstratives. We will show that a recent and particularly subtle syntactically based argument for the semantic/metaphysical status of complex demonstratives does not in fact show what semantic category complex demonstratives are.. (shrink)

This paper explores speakers'' epistemic access to the semanticand syntactic features of sentences of their language. I argue that there is evidence that ceteris paribus, the actual semantic features of sentences of a language are accessible as such by typical speakers of that language.I then explore various linguistic, cognitive, and epistemic consequences of this position.

This paper responds to Philipona & O’Regan (2006), which attempts to account for certain color phenomena by appeal to singularities in the space of “accessible information” in the light striking the retina. Three points are discussed. First, it is unclear what the empirical significance/import is of the mathematical analysis of the data regarding the accessible information in the light. Second, the singularity index employed in the study is both mathematically and empirically faulty. Third, the connection drawn between their findings and (...) some data from the World Color Survey is lacking in quantitative analysis in places where it is needed. The difficulties raised prevent Philipona & O’Regan’s conclusions from being accepted. (shrink)

This article reviews some linguistic and philosophical work in lexical semantics. In Section 1, the general methods of lexical semantics are explored, with particular attention to how semantic features of verbs are associated with grammatical patterns. In Section 2, philosophical consequences and issues arising from this sort of research is reviewed.

© 2017. The American Astronomical Society. All rights reserved.We present new observations of the low-mass companion to HD 984 taken with the Gemini Planet Imager as a part of the GPI Exoplanet Survey campaign. Images of HD 984 B were obtained in the J and H bands. Combined with archival epochs from 2012 and 2014, we fit the first orbit to the companion to find an 18 au orbit with a 68% confidence interval between 14 and 28 au, an eccentricity (...) of 0.18 with a 68% confidence interval between 0.05 and 0.47, and an inclination of 119°with a 68% confidence interval between 114°and 125°. To address the considerable spectral covariance in both spectra, we present a method of splitting the spectra into low and high frequencies to analyze the spectral structure at different spatial frequencies with the proper spectral noise correlation. Using the split spectra, we compare them to known spectral types using field brown dwarf and low-mass star spectra and find a best-fit match of a field gravity M6.5 ±1.5 spectral type with a corresponding temperature of K. Photometry of the companion yields a luminosity of log=2.88 ± 0.07 dex with DUSTY models. Mass estimates, again from DUSTY models, find an age-dependent mass of 34 ±1 to 95 ±4 M Jup. These results are consistent with previous measurements of the object. (shrink)

Gareth Evans proposes that there are semantic natural kinds of words. In his development of this theory,he argues for two constraints on the identification of these kinds. I argue that neither of these constraints are justified. Furthermore,my argument against Evans' second constraint constitutes a direct argument for the existence of semantic natural kinds,something Evans himself never offers. I conclude by sketching some positive details of a more plausible theory of semantic natural kinds.

Keith Donnellan (1931 – ) began his studies at the University of Maryland, and earned his Bachelor’s degree from Cornell University. He stayed on at Cornell, earning a Master’s and a PhD in 1961. He also taught at there for several years before moving to UCLA in 1970, where he is currently Emeritus Professor of Philosophy. Donnellan’s work is mainly in the philosophy of language, with an emphasis on the connections between semantics and pragmatics. His most influential work was his (...) 1966 paper “Reference and Definite Descriptions”. In this paper, he challenges the canonical view, due to Bertrand Russell, about definite descriptions. Russell had argued that the proper semantic treatment of a definite description such as “the present king of France” was quantificational. Thus, a sentence like “the present king of France is bald” should be analyzed as “There exists one and only one entity x that is the present king of France, and x is bald”. Donnellan argues that in natural languages, there are actually two different kinds of uses of definite descriptions. Russell’s analysis picks out the “attributive” use of definite descriptions. When we use a definite description (“the F”) this way, we mean to make statements about the unique entity x that is F. However, Donnellan notes that we also sometimes use definite descriptions “referentially” to pick out a given entity and say something about it. To see this, imagine you are at a party where virtually everyone is drinking beer. However, you and your friend are observing a man in a corner of the room holding a martini glass. Unbeknownst to you, the man’s glass is filled with water. You turn to your friend and ask, “who is the man drinking a martini?” Suppose further that your friend knows that the man in question is Fred and that Fred’s glass is filled with water. According to the Russellian attributive analysis, such a question would amount to asking for the identity of the one and only one man drinking a martini. But the presupposition that there is a man drinking a martini is false, and so there should be no answer to the question.. (shrink)

This paper motivates using explicit methods in linguistics by attempting to estimate the size of a linguistic data set. Such estimations are difficult because redundant data can easily pad the data set. To address this, I offer some explicit operationalizations of the data and their features. But for linguistic data, negative associations don’t indicate true redundancy, and yet for many measures they can be mathematically impossible to ignore. It is proven that this troublesome phenomenon has positive Lebesgue measure, is monotonically (...) increasing, and that these two features hold robustly in four different ways. (shrink)

In this paper, I examine William Whewell’s (1794–1866) ‘Discoverer’s Induction’, and argue that it 21 supplies a strikingly accurate characterization of the logic behind many statistical methods, exploratory 22 data analysis (EDA) in particular. Such methods are additionally well-suited as a point of evaluation of 23 Whewell’s philosophy since the central techniques of EDA were not invented until after Whewell’s death, 24 and so couldn’t have influenced his views. The fact that the quantitative details of some very general 25 methods (...) designed to suggest hypotheses would so closely resemble Whewell’s views of how theories 26 are formed is, I suggest, a strongly positive comment on these views. (shrink)

The article provides an analysis of Georg Ludwig Schmid's ‘Reflexions sur l’Agriculture’, which was published as the first essay in the first issue of the publications of the Oeconomical Society of Berne, founded in 1759. Schmid connected the agricultural improvement movement of the time to the logic of international power competition that caused the 7 Years’ War and wished to preserve political economy as agronomy for the cause of peace and virtuous economic progress. In his essay on commerce and luxury, (...) he devised a patriotic political economy based on the notion of a marche naturelle, or a natural progress of opulence, which enabled statesmen and political economists to separate the productive from the pathological features of economic development, healthy and necessary growth from luxury. Adam Smith deployed a similar model in the Wealth of Nations but argued that Europe's retrograde development was so fundamental and comprehensive that it made it impossible to use this kind of natural progress model on its own as a meaningful guide for comprehensive economic and political reform. (shrink)

There is a problem when these people list all these flavours and aromas they think they have detected. It then gets on to the label of the bottle and what you are looking at appears to be a recipe for fruit salad. – Hugh Johnson.

This is the first book to offer the best essays, articles, and speeches on ethics and intelligence that demonstrate the complex moral dilemmas in intelligence collection, analysis, and operations. Some are recently declassified and never before published, and all are written by authors whose backgrounds are as varied as their insights, including Robert M. Gates, former Director of the Central Intelligence Agency; John P. Langan, the Joseph Cardinal Bernardin Professor of Catholic Social Thought at the Kennedy Institute of Ethics, Georgetown (...) University; and Loch K. Johnson, Regents Professor of Political Science at the University of Georgia and recipient of the Owens Award for contributions to the understanding of U.S. intelligence activities. Creating the foundation for the study of ethics and intelligence by filling in the gap between warfare and philosophy, this is a valuable collection of literature for building an ethical code that is not dependent on any specific agency, department, or country. (shrink)

Here a distinguished American historian challenges the belief that the eighteenth century was essentially modern in its temper. In crystalline prose Carl Becker demonstrates that the period commonly described as the Age of Reason was, in fact, very far from that; that Voltaire, Hume, Diderot, and Locke were living in a medieval world, and that these philosophers “demolished the Heavenly City of St. Augustine only to rebuild it with more up-to-date materials.” In a new foreword, Johnson Kent Wright (...) looks at the book’s continuing relevance within the context of current discussion about the Enlightenment. “Will remain a classic—a beautifully finished literary product.”—Charles A. Beard, _American Historical Review_ “_The Heavenly City of the Eighteenth-Century Philosophers _remains_ _one of the most distinctive American contributions to the historical literature on the Enlightenment.... [It] is likely to beguile and provoke readers for a long time to come.”—Johnson Kent Wright, from the foreword. (shrink)

In Virtues of the Will, Bonnie Kent traces late thirteenth-century debates about the freedom of the will, moral weakness, and other issues that helped change the course of Western ethics. She argues that one cannot understand the controversies of the period or see Duns Scotus in perspective without paying due attention to his immediate predecessors: the influential secular master Henry of Ghent, Walter of Bruges, William de la Mare, Peter Olivi, and other Franciscans. Seemingly radical doctrines in Scotus often (...) turn out to be moderate in comparison to other near-contemporary views, and striking Scotistic innovations often turn out to be something approaching commonplaces of Franciscan thought. This study presents the controversies of the period less as a reaction by theologians against philosophy than as genuine philosophical debates about problems raised by Aristotle's thought. And it presents Scotus's teachings less as a break with tradition than as a reasonably natural response to issues debated by his predecessors. The overall aim is to recover part of a late thirteenth-century dialogue about the will and morality. By explaining in a clear, accessible style the sometimes complex issues debated during this period, Virtues of the Will helps readers understand not only the historical and doctrinal context but also the more enduring philosophical problems posed by Aristotle's teachings. (shrink)

This article sheds new light on the interesting but little-studied figure of Thomas Scott of Canterbury (1566–1635). In presenting Scott's ideas I will modify the interpretation laid out by Peter Clark whose groundbreaking study, ‘Thomas Scott and the Growth of Urban Opposition to the Early Stuart Regime’, is still the only secondary source that pays detailed attention to Scott and his thought, especially his religious opinions. The necessity to revisit Clark's interpretation of Scott's place within the political and doctrinal debates (...) of early Stuart England stems from the conviction that his political work and his ideological stances deserve more subtle attention. Most importantly, they were part of the emerging reaction against the policies of the first two Stuart Kings which can be labelled ‘country patriotism’. Finally, the elucidation of Scott's writings will provide a novel insight into an early configuration of English national identity. ☆ Earlier versions of this article were presented at the seminar ‘British History in the 17th Century’ held at the Institute of Historical Research (London) and at the ‘Modern History Seminar’ held at the History Department of the University of Birmingham. I wish to thank the audiences on both occasions for their questions and comments, especially Justin Champion, Richard Cust, John Miller. I would also like to thank Jonathan Scott, Johann P. Sommerville and Richard Whatmore for reading the text. This article is based on archival research pursued at the Kentish Archive Office, Maidstone (KAO), Canterbury Cathedral Library (CCL), Bodleain Library, Oxford (BLO) and British Library, London (BL). The manuscripts referred to in the text are listed as KAO U951/z/9, U951/z/10, U951/z16, U951/z17 (Knatchbull Papers); CCL Urry Mss 66 (‘Thomas Scott's Papers on the Elections to the Parliament of 1626’, 1a–141a); BLO Ballard Ms 61; BL Harley 7018, Additional MSS 62135, n. 31. The majority of the material consists of Scott's diary and of a series of mostly unfoliated papers in Scott's own hand. Some portions of the diary are in secretarial hand, whilst others are reproduced in Proceedings in Parliament 1628, ed. R.C. Johnson et al., 6 vols. (New Haven and London, 1977–1983), VI, Appendixes and Indexes, 126–37, 218–43 (hereafter PP 1628; where there are passages in both manuscript and printed form I refer to the latter). Amongst the miscellanous Scott manuscripts two are in Bodleian Library, Rawlinson Ms A 346, 224a–34b and 285a–97b. These are transcribed and published in Dorothea Scott, otherwise Gotherson and Hogben, of Egerton House, Kent, 1611–1680, A New and Enlarged Edition by G.D. Scull (Oxford, 1883) (hereafter Dorothea Scott). (shrink)

While the origin and development of the just war tradition until the early modern period blended concerns, ideas, and practices from the moral, legal, political, and military spheres, from the mid-seventeenth century until the mid-twentieth it largely disappeared as a conscious source of moral reflection about war and its restraint. Beginning in the 1960s, however, American theologian Paul Ramsey initiated a recovery of just war thinking in a series of writings applying the principles of discrimination and proportionality, ideas he traced (...) both to Augustinian theology and to natural law, to the debate over nuclear weapons and later to the Vietnam War. Ramsey's work directly engaged both theological and policy debate over military force, initiating lines of reflection that have since developed further and become increasingly institutionalized. This brief essay examines the nature of Ramsey's just war thought and its influence over the last 40 years. (shrink)

We aim to find a middle path between disease models of addiction, and those that treat addictive choices as choices like any other. We develop an account of the disease element by focussing on the idea that dopamine works primarily to lay down dispositional intrinsic desires. Addictive substances artifically boost the dopamine signal, and thereby lay down intrinsic desires for the substances that persist through withdrawal, and in the face of beliefs that they are worthless. The result is cravings that (...) are largely outside the control of the addict. But this does not mean that addicts are bound to act on such cravings, since they typically retain their faculty of self-control. The issue is one of difficulty not impossibility. Controlling an addictive craving is exceedingly demanding. (shrink)

C.S. Peirce, the American philosopher and a principal figure in the development of the modern study of semiotics, struggled, mostly during his later years, to work out a systematic method for classifying sciences. By doing this, he hoped to define more clearly the various tasks of these sciences by showing how their individual effects are interrelated and how these effects, considered in their interrelations, establish pragmatic meanings for each individual science. Much of his work was centered on the meaning and (...) function of logic in relation to other areas of human knowledge. By rightly defining the work of logic, Peirce argued, the work of the other sciences could be pursued with more rigorous reasoning. Beverley Kent closely examines the published and unpublished writings of Peirce and carefully attends to the chronological development of his systems of classification; she thereby shows for the first time in the scholarly literature how seeming contradictions in Peirce's evolving classification are really part of an increasingly clear position. Logic, Peirce came to understand, is actually dependent on ethics and aesthetics for its principles. Kent shows how Peirce's working out of the classification of logic in relation to other sciences is a clue to the significant differences between his early and late philosophy and, perhaps even more important, to a reading of his more general claims for a philosophy of "pragmaticism." This work will be of interest to readers of Peirce and American philosophy, to historians of logic and semiotics, and to those more generally interested in the history of systems of knowledge-classification. (shrink)

Recently the relevance of the philosophy of Martin Heidegger has been critiqued in nursing literature. However, this critique is based primarily upon an appropriation of Heidegger that does not reflect an understanding of meaning as grounded in temporality. Therefore, this paper aims to (1) explicate Heidegger's grounding of meaning, (2) briefly contrast Heidegger's and Husserl's notions of the origin of meaning, (3) describe how Heidegger was first introduced to nursing, and (4) illustrate through examples from a research study how the (...) philosophy of Heidegger might inform the phenomenological researcher. (shrink)

Here a distinguished American historian challenges the belief that the eighteenth century was essentially modern in its temper. In crystalline prose Carl Becker demonstrates that the period commonly described as the Age of Reason was, in fact, very far from that; that Voltaire, Hume, Diderot, and Locke were living in a medieval world, and that these philosophers “demolished the Heavenly City of St. Augustine only to rebuild it with more up-to-date materials.” In a new foreword, Johnson Kent Wright (...) looks at the book’s continuing relevance within the context of current discussion about the Enlightenment. “Will remain a classic—a beautifully finished literary product.”—Charles A. Beard, _American Historical Review_ “_The Heavenly City of the Eighteenth-Century Philosophers _remains_ _one of the most distinctive American contributions to the historical literature on the Enlightenment.... [It] is likely to beguile and provoke readers for a long time to come.”—Johnson Kent Wright, from the foreword. (shrink)

If SNOMED CT is to serve as a biomedical reference terminology, then steps must be taken to ensure comparability of information formulated using successive versions. New releases are therefore shipped with a history mechanism. We assessed the adequacy of this mechanism for its treatment of the distinction between changes occurring on the side of entities in reality and changes in our understanding thereof. We found that these two types are only partially distinguished and that a more detailed study is required (...) to propose clear recommendations for enhancement along at least the following lines: (1) explicit representation of the provenance of a class; (2) separation of the time-period during which a component is stated valid in SNOMED CT from the period it is (or has been) valid in reality, and (3) redesign of the historical relationships table to give users better assistance for recovery in case of introduced mistakes. (shrink)