The Negation Problem states that expressivism has insufficient structure to account for the various ways in which a moral sentence can be negated. We argue that the Negation Problem does not arise for expressivist accounts of all normative language but arises only for the specific examples on which expressivists usually focus. In support of this claim, we argue for the following three theses: 1) a problem that is structurally identical to the Negation Problem arises in non-normative cases, and this problem (...) is solved once the hidden quantificational structure involved in such cases is uncovered; 2) the terms ‘required’, ‘permissible’, and ‘forbidden’ can also be analyzed in terms of hidden quantificational structure, and the Negation Problem disappears once this hidden structure is uncovered; 3) the Negation Problem does not arise for normative language that has no hidden quantificational structure. We conclude that the Negation Problem is not really a problem about expressivism at all but is rather a feature of the quantificational structure of the required, permitted, and forbidden. (shrink)

The problem of the unity of the proposition asks what binds together the constituents of a proposition into a fully formed proposition that provides truth conditions for the assertoric sentence that expresses it, rather than merely a set of objects. Hanks’ solution is to reject the traditional distinction between content and force. If his theory is successful, then there is a plausible extension of it that readily solves the Frege–Geach problem for normative propositions. Unfortunately Hanks’ theory isn’t successful, but it (...) does point to significant connections between expressivism, unity, and embedding. (shrink)

Abstract:Recently, the idea that every hypothetical imperative must somehow be ‘backed up’ by a prior categorical imperative has gained a certain influence among Kant interpreters and ethicists influenced by Kant. Since instrumentalism is the position that holds that hypothetical imperatives can by themselves and without the aid of categorical imperatives explain all valid forms of practical reasoning, the influential idea amounts to a rejection of instrumentalism as internally incoherent. This paper argues against this prevailing view both as an interpretation of (...) Kant and as philosophical understanding of practical reason. In particular, it will be argued that many of the arguments that claim to show that hypothetical imperatives must be backed up by categorical imperatives mistakenly assume that the form of practical reasoning must itself occur as a premise within the reasoning. An alternative to this assumption will be offered. I will conclude that while instrumentalism may well be false, there is no reason to believe it is incoherent. (shrink)

Hanks develops a theory of propositions as speech-act types. Because speech acts play a role in the contents themselves, the view overturns Frege’s force/content distinction, and as such, faces the challenge of explaining how propositions embed under logical operators like negation. The attempt to solve this problem has lead Hanks and his recent commentators to adopt theoretically exotic resources, none of which, we argue, is ultimately successful. The problem is that although there are three different ways of negating the sentence (...) “Mary’s card is an ace”, current speech-act theories of propositions can only accommodate two of them. We distinguish between “It is false that Mary’s card is an ace”, “Mary’s card is a non-ace”, and “Mary’s card is not an ace” and show that Hanks and his commentators cannot explain content negation. We call this Hanks’ Negation Problem. The problem is significant because content negation is the negation required for logic. Fortunately, we think there is a natural way for Hanks to accommodate content negation as successive acts of predication. The view solves Hanks’ Negation Problem with only resources internal to Hanks’ own view. (shrink)

Volume 98, Issue 4, December 2020, Page 718-731.

The status of constructivism as a metaethical or metanormative theory is unclear partly due to the lack of a clear semantics for central normative terms such as ‘reason’ and ‘ought’. In a series of recent papers, Sharon Street has attempted to clarify the central commitments of constructivism by focusing on the idea of a practical point of view and what follows from it. We improve upon the informal understanding provided by Street and attempt to provide a semantics for ‘ought’. Our (...) semantics respects the core intuition of the constructivist that normative claims are made true because of our practical commitments as agents and also reflects the constructivist’s commitment to the centrality of practical deliberation to normative truth. On our view, a normative claim of the form ⌜S ought to ϕ⌝ is true if ϕ is entailed from S’s set of evaluative attitudes. We argue that a virtue of our definition is that it allows us to see precisely what is distinctive about constructivism as opposed to realism and expressivism. (shrink)

Both metaethicists and Kant scholars alike use the phrase ‘Kantian constructivism’ to refer to a kind of austere constructivism that holds that substantive ethical conclusions can be derived from the practical standpoint of rational agency as such. I argue that this widespread understanding of Kant is incompatible with Kant’s claim that the Categorical Imperative is a synthetic a priori practical judgement. Taking this claim about the syntheticity of the Categorical Imperative seriously implies that moral judgements follow from extra-logical but necessary (...) principles. These principles have to do not with the laws of practical thinking but the laws of practical thought about an object. I conclude that historical Kant was not what has come to be called a ‘Kantian constructivist’. (shrink)

No mathematician did more to change mathematics in the second half of the twentieth century than Alexandre Grothendieck. This would have been true even if he had been a quiet figure with a liking for playing the piano and walking in the hills but, as this book makes very clear, he was far from that, and his character and his way of working enhanced his impact. Above all, there was his abrupt departure from the world of mathematics in 1970 and (...) his occasional interventions in it since.This review was submitted a few days before Grothendieck's death in November 2014—Editor.As a teenager, Grothendieck had lived with his mother protected from the Nazis by courageous Huguenots in the village of Le Chambon-sur-Lignon. Immediately after the war, he went to the University of Montpellier where he studied mathematics and soon made his way to Nancy and was introduced to Dieudonné and Schwartz, who were members of Bourbaki. His first original work was in the theory of Banach spaces where, in the wo .. (shrink)

La correspondencia bolivariana de Jeremías Bentham revela las razones del interés del filósofo inglés por la lucha emancipadora en la América hispana, así como alguna de las reacciones de los hispanoamericanos ante las ideas utilitaristas.

Randomized controlled trial trial designs exist on an explanatory-pragmatic spectrum, depending on the degree to which a study aims to address a question of efficacy or effectiveness. As conceptualized by Schwartz and Lellouch in 1967, an explanatory approach to trial design emphasizes hypothesis testing about the mechanisms of action of treatments under ideal conditions, whereas a pragmatic approach emphasizes testing effectiveness of two or more available treatments in real-world conditions. Interest in, and the number of, pragmatic trials has grown (...) substantially in recent years, with increased recognition by funders and stakeholders worldwide of the need for credible evidence to inform clinical decision-making. This increase has been accompanied by the onset of learning healthcare systems, as well as an increasing focus on patient-oriented research. However, pragmatic trials have ethical challenges that have not yet been identified or adequately characterized. The present study aims to explore the views of key stakeholders with respect to ethical issues raised by the design and conduct of pragmatic trials. It is embedded within a large, four-year project that seeks to develop guidance for the ethical design and conduct of pragmatic trials. As a first step, this study will address important gaps in the current empirical literature with respect to identifying a comprehensive range of ethical issues arising from the design and conduct of pragmatic trials. By opening up a broad range of topics for consideration within our parallel ethical analysis, we will extend the current debate, which has largely emphasized issues of consent, to the range of ethical considerations that may flow from specific design choices. Semi-structured interviews with key stakeholders, across multiple jurisdictions, identified based on their known experience and/or expertise with pragmatic trials. We expect that the study outputs will be of interest to a wide range of knowledge users including trialists, ethicists, research ethics committees, journal editors, regulators, healthcare policymakers, research funders and patient groups. All publications will adhere to the Tri-Agency Open Access Policy on Publications. (shrink)

This is a short response piece to Jeremy Schwartz's "Saying 'Thank You' and Meaning It", published in Australasian Journal of Philosophy, 2020, 98, pp. 718-731. -/- Schwartz argues against the received view that 'Thank You! is for expressing gratitude, claiming instead that it is for expressing one's judgment that gratitude is appropriate or fitting. I argue against the judgment view while defending the received one. -/- I mainly consider the objection that the judgment view is implausible since (...) it makes ‘Thank you!’ semantically indistinguishable from the declarative sentence ‘Gratitude is appropriate to you’ and show that Schwartz’s attempt to sidestep it relies on misunderstanding Kaplan's view of what it is for a sentence to be an expressive vs. a declarative. (shrink)

Research design is fundamentally central to all scientific endeavors, at all levels and in all institutional settings. This book is a practical, short, simple, and authoritative examination of the concepts and issues in interpretive research design, looking across this approach's methods of generating and analyzing data. It is meant to set the stage for the more "how-to" volumes that will come later in the Routledge Series on Interpretive Methods, which will look at specific methods and the designs that they require. (...) It will, however, engage some very practical issues, such as ethical considerations and the structure of research proposals. Interpretive research design requires a high degree of flexibility, where the researcher is more likely to think of "hunches" to follow than formal hypotheses to test. Yanow and Schwartz-Shea address what research design is and why it is important, what interpretive research is and how it differs from quantitative and qualitative research in the positivist traditions, how to design interpretive research, and the sections of a research proposal and report. (shrink)

Author Jeremy Waldron has thoroughly revised thirteen of his most recent essays in order to offer a comprehensive critique of the idea of the judicial review of legislation. He argues that a belief in rights is not the same as a commitment to a Bill of Rights. This book presents legislation by a representative assembly as a form of law making which is especially apt for a society whose members disagree with one another about fundamental issues of principle.

We discuss from a philosophical perspective the way in which the normal concept of time might be said to `emerge' in a quantum theory of gravity. After an introduction, we briefly discuss the notion of emergence, without regard to time. We then introduce the search for a quantum theory of gravity ; and review some general interpretative issues about space, time and matter. We then discuss the emergence of time in simple quantum geometrodynamics, and in the Euclidean approach. Section 6 (...) concludes. (shrink)

Pioneering biblical critic, theorist of democracy, and legendary conflater of God and nature, Jewish philosopher Baruch Spinoza (1632-1677) was excommunicated by the Sephardic Jews of Amsterdam in 1656 for his "horrible heresies" and "monstrous deeds." Yet, over the past three centuries, Spinoza's rupture with traditional Jewish beliefs and practices has elevated him to a prominent place in genealogies of Jewish modernity. The First Modern Jew provides a riveting look at how Spinoza went from being one of Judaism's most notorious outcasts (...) to one of its most celebrated, if still highly controversial, cultural icons, and a powerful and protean symbol of the first modern secular Jew. Ranging from Amsterdam to Palestine and back again to Europe, the book chronicles Spinoza's posthumous odyssey from marginalized heretic to hero, the exemplar of a whole host of Jewish identities, including cosmopolitan, nationalist, reformist, and rejectionist. Daniel Schwartz shows that in fashioning Spinoza into "the first modern Jew," generations of Jewish intellectuals -German liberals, East European maskilim, secular Zionists, and Yiddishists- have projected their own dilemmas of identity onto him, reshaping the Amsterdam thinker in their own image. The many afterlives of Spinoza are a kind of looking glass into the struggles of Jewish writers over where to draw the boundaries of Jewishness and whether a secular Jewish identity is indeed possible. Cumulatively, these afterlives offer a kaleidoscopic view of modern Jewish culture and a vivid history of an obsession with Spinoza that continues to this day."--Jacket. (shrink)

Bentham's best-known book stands as a classic of both philosophy and jurisprudence. The 1789 work articulates an important statement of the foundations of utilitarian philosophy — it also represents a pioneering study of crime and punishment. Bentham's reasoning remains central to contemporary debates in moral and political philosophy, economics, and legal theory.

Finding Oz tells the remarkable story behind one of the world’s most enduring and best-loved books. Offering profound new insights into the true origins and meaning of L. Frank Baum’s 1900 masterwork, it delves into the personal turmoil and spiritual transformation that fueled Baum’s fantastical parable of the American Dream. Before becoming an impresario of children’s adventure tales, the J. K. Rowling of his age, Baum failed at a series of careers and nearly lost his soul before setting out on (...) a journey of discovery that would lead to the Land of Oz. Drawing on original research, Evan Schwartz debunks popular misconceptions and shows how the people, places, and events in Baum’s life gave birth to his unforgettable images and characters, from the Yellow Brick Road to the Emerald City to the dual view of witches that reflected the life of Baum’s mother-in-law, the radical women’s rights leader Matilda Joslyn Gage. A narrative that sweeps across late-nineteenth-century America, Finding Oz ultimately reveals how failure and heartbreak can sometimes lead to redemption and bliss, and how one individual can ignite the imagination of the entire world. (shrink)

For over four decades, Richard Schwartz has engaged with two ethically rich ways of living that, as he charts in this book, he came to appreciate in middle age: Judaism and veganism. Having been born into a secular Jewish family, it was his marriage and an increasing commitment to social justice that propelled him to study and rediscover the essence of his Jewish faith. That sense of social justice further raised his awareness of the environmental movement, and, ultimately, to (...) animal rights and veganism. In Vegan Revolution: Saving Our World, Revitalizing Judaism, Schwartz shows how, now perhaps more than ever, veganism offers a pathway for all of us of whatever faith (or no faith) to reduce hunger, conserve the environment, save water, reinstitute justice, and care for animals and the Earth. It is no coincidence, as Schwartz demonstrates, that many of these ideas are mandates in Jewish scripture, and that reincorporating a care for the world (tikkun olam) can itself reinvigorate the spirit of a faith and galvanize its practitioners to act. (shrink)

The opening of Halakhic man : a covert dialogue with homo religiosus -- Homo religiosus: between religion and cognition -- The first paradigm of homo religiosus : Maimonides -- The second paradigm of homo religiosus : Kant -- Halakhic man as cognitive man -- The negation of metaphysics and of the messianic idea -- Mysticism, Kabbalah, and Hasidism -- Halakhic cognition and the norm -- Halakhic man's personality structure -- Religiosity after cognition : all-inclusive consciousness -- Myth as metaphor : (...) halakhic man as a creator of worlds -- Change or interpretation: repentance as creativity -- On providence and prophecy -- Halakhic man after twenty years : what has changed?. (shrink)

The contractarian theory elaborated by John Rawls in A Theory of Justice exploits the difference principle in a great many ways. Rawls argues that, when used as part of a set of guiding principles for structuring the basic institutions of society, it simplifies the problem of interpersonal comparisons (91-4)1, helps compensate for the arbitrariness of natural endowments (101-3), promotes a harmony of interests between citizens (104-5), reintroduces the principle of fraternity to democratic society (105-6), and, what is critical to his (...) contractarian theory, it is an essential part of the principles of justice which would be chosen by free, equal, and rational persons in the original position. (shrink)

In the ‘analytic tradition’, Hans Sluga wrote thirty years ago in his book Gottlob Frege, there has been a ‘lack of interest in historical questions — even in the question of its own roots. Anti-historicism has been the baggage of the tradition since Frege’ (Sluga, 1980, p. 2). The state of the discussion of Frege among analytic philosophers, Sluga claimed, illustrated well this indifference. Despite the numbers of pages devoted to Frege, there was still, Sluga claimed, little understanding of the (...) sources of Frege’s ideas, his intellectual debts, and the historical circumstances of his thought. Sluga singled out Michael Dummett’s Frege: Philosophy of Language ‘as a paradigm for the failure of analytic philosophers to come to grips with the actual, historical Frege’. In that book, Dummett famously wrote that the logical system that Frege put forward in his 1879 Begriffsschrift ‘is astonishing because it has no predecessors: it appears to have been born from Frege’s brain unfertilized by external influences’ (Dummett, 1981a, p. xxxv) — and Dummett devoted almost none of its 700 pages to the relationship between Frege and his contemporaries. (shrink)

We have two aims. The main one is to expound the idea of renormalization in quantum field theory, with no technical prerequisites. Our motivation is that renormalization is undoubtedly one of the great ideas—and great successes--of twentieth-century physics. Also it has strongly influenced in diverse ways, how physicists conceive of physical theories. So it is of considerable philosophical interest. Second, we will briefly relate renormalization to Ernest Nagel's account of inter-theoretic relations, especially reduction. One theme will be a contrast between (...) two approaches to renormalization. The old approach, which prevailed from ca. 1945 to 1970, treated renormalizability as a necessary condition for being an acceptable quantum field theory. On this approach, it is a piece of great good fortune that high energy physicists can formulate renormalizable quantum field theories that are so empirically successful. But the new approach to renormalization explains why the phenomena we see, at the energies we can access in our particle accelerators, are described by a renormalizable quantum field theory. For whatever non-renormalizable interactions may occur at yet higher energies, they are insignificant at accessible energies. Thus the new approach explains why our best fundamental theories have a feature, viz. renormalizability, which the old approach treated as a selection principle for theories. That is worth saying since philosophers tend to think of scientific explanation as only explaining an individual event, or perhaps a single law, or at most deducing one theory as a special case of another. Here we see a framework in which there is a space of theories. And this framework is powerful enough to deduce that what seemed “manna from heaven” is to be expected: the good fortune is generic. We also maintain that universality, a concept stressed in renormalization theory, is essentially the familiar philosophical idea of multiple realizability; and that it causes no problems for reductions of a Nagelian kind. (shrink)

These nine essays address fundamental questions about time in philosophy, physics, linguistics, and psychology. Are there facts about the future? Could we affect the past? In physics, general relativity and quantum theory give contradictory treatments of time. So in the current search for a theory of quantum gravity, which should give way: general relativity or quantum theory? In linguistics and psychology, how does our language represent time, and how do our minds keep track of it?

As idealized descriptions of mathematical language, there is a sense in which formal systems specify too little, and there is a sense in which they specify too much. On the one hand, formal languages fail to account for a number of features of informal mathematical language that are essential to the communicative and inferential goals of the subject. On the other hand, many of these features are independent of the choice of a formal foundation, so grounding their analysis on a (...) particular choice of a formal system introduces unnecessary specificity. This chapter begins to map out the design features of mathematical language without descending to the level of formal implementation, drawing on examples from the mathematical literature and insights from the design of computational proof assistants and their libraries. (shrink)

There is pragmatic encroachment on some epistemic status just in case whether a proposition has that status for a subject depends not only on the subject's epistemic position with respect to the proposition, but also on features of the subject's non-epistemic, practical environment. Discussions of pragmatic encroachment usually focus on knowledge. Here we argue that, barring infallibilism, there is pragmatic encroachment on what is arguably a more fundamental epistemic status – the status a proposition has when it is warranted enough (...) to be a reason one has for believing other things. (shrink)

This paper expounds the modern theory of symplectic reduction in finite-dimensional Hamiltonian mechanics. This theory generalizes the well-known connection between continuous symmetries and conserved quantities, i.e. Noether's theorem. It also illustrates one of mechanics' grand themes: exploiting a symmetry so as to reduce the number of variables needed to treat a problem. The exposition emphasises how the theory provides insights about the rotation group and the rigid body. The theory's device of quotienting a state space also casts light on philosophical (...) issues about whether two apparently distinct but utterly indiscernible possibilities should be ruled to be one and the same. These issues are illustrated using ``relationist'' mechanics. (shrink)

Plato is often acknowledged as the first philosophical critic of democracy and his Republic is regularly taken as a paradigm of an anti-democratic work. While it is true that Plato objected to much about the democracy of his own time, Plato’s political theorizing also reveals an interest in improving democratic institutions. This chapter explores three themes in Plato’s thinking about democracy: firstly, Plato's insistence that rulers should be knowledgeable and his claim that most people are politically incompetent (§1); secondly, Plato's (...) criticisms of oratory and the corrupting effects of public rhetoric (§2); thirdly, Plato's use of democratic institutions in the Laws (§3). Once we appreciate these different evaluations of democratic practices, we can see that Plato was not simply ‘anti-democratic’ or ‘pro-democratic’ but thought some democratic practices should be abandoned, some reformed, and some adopted. (shrink)

Shearmur draws on his years as Popper's assistant, on unpublished material in the Hoover archive, and on wider themes within Popper's philosophy to offer striking critical re-interpretations of his ethical and social theory. This title available in eBook format. Click here for more information . Visit our eBookstore at: www.ebookstore.tandf.co.uk.

Despite its appeal and popularity, the view that membership in a natural kind is essential to an individual is unsupported by the logic of essences and has no compelling reflective support. While the view has strong intuitive and empirical support this is insufficient to establish it. There are advantages to abandoning the view that kind membership is essential to individuals. One of these advantages is that it allows for a reconfiguring of the problem of material constitution in a way that (...) removes much of the paradox. (shrink)

Explores the philosophical dimensions and implications of integral theory. Dancing with Sophia is the first book of essays to focus on the philosophical dimensions and implications of integral theory. A metatheory that organizes first order theories and disciplines into higher order modes of knowing and insight needed to address the complexity of today’s world, integral theory has already impacted a wide range of disciplines, from psychology to business to religious studies to art. Included here are perspectives by scholars in the (...) continental, comparativist, and process traditions who dive into integral theory’s postmetaphysical claims in order to mine, extend, and critique its philosophical merits. On the verge of its own emergence, integral philosophy promotes modes of creative critical thought oriented toward the multidimensional flourishing of planetary well-being, and Dancing with Sophia will be of interest to scholars in philosophy; religious studies; transpersonal, developmental, and humanist psychology; and more. “Integral theory is a bold and provocative endeavor. It challenges one to think past the norm, to sail beyond the horizon and risk encountering the Scylla and Charybdis of what is academically acceptable—or at least familiar—and what is possible, in ways that only are now beginning to dawn on both thinking and dwelling. If it is nothing else, integral theory is the movement beyond the purely intellectual into the lived experience. This is its ‘meta-’ dimension properly understood.” — from the Foreword by Brian Schroeder. (shrink)

Significant research has been devoted to detecting people in images and videos. In this paper we describe a human de- tection method that augments widely used edge-based fea- tures with texture and color information, providing us with a much richer descriptor set. This augmentation results in an extremely high-dimensional feature space (more than 170,000 dimensions). In such high-dimensional spaces, classical machine learning algorithms such as SVMs are nearly intractable with respect to training. Furthermore, the number of training samples is much (...) smaller than the dimensionality of the feature space, by at least an order of magnitude. Finally, the extraction of features from a densely sampled grid structure leads to a high degree of multicollinearity. To circumvent these data characteristics, we employ Partial Least Squares (PLS) analysis, an effi- cient dimensionality reduction technique, one which pre- serves significant discriminative information, to project the data onto a much lower dimensional subspace (20 dimen- sions, reduced from the original 170,000). Our human de- tection system, employing PLS analysis over the enriched descriptor set, is shown to outperform state-of-the-art tech- niques on three varied datasets including the popular INRIA pedestrian dataset, the low-resolution gray-scale Daim- lerChrysler pedestrian dataset, and the ETHZ pedestrian dataset consisting of full-length videos of crowded scenes. (shrink)

The new critical edition of the works and correspondence of Jeremy Bentham is being prepared and published under the supervision of the Bentham Committee of University College London. In spite of his importance as jurist, philosopher, and social scientist, and leader of the Utilitarian reformers, the only previous edition of his works was a poorly edited and incomplete one brought out within a decade or so of his death. Eight volumes of the new Collected Works, five of correspondence, and (...) three of writings on jurisprudence, appeared between 1968 and 1981, published by the Athlone Press. Further volumes in the series since then are published by Oxford University Press. The overall plan and principles of the edition are set out in the General Preface to The Correspondence of Jeremy Bentham, vol. 1, which was the first volume of the Collected Works to be published.An Introduction to the Principles of Morals and Legislation, Jeremy Bentham's best-known work, is a classic text in modern philosophy and jurisprudence. First published in 1789, it contains the important statement of the foundations of utilitarian philosophy and a pioneering study of crime and punishment, both of which remain at the heart of contemporary debates in moral and political philosophy, economics, and legal theory. Printed here in full is the definitive edition, edited by the distinguished scholars J. H. Burns and H. L. A. Hart. An introductory essay by Hart, first published in 1982 and a widely acknowledged classic in its own right, is reprinted here. It contains an important analysis of Bentham's principle of utility, theory of action, and an account of the relationship between law and morality.A new introduction by the leading Bentham scholar F. Rosen, specially written for this Clarendon Paperback edition, provides students with a helpful survey of Bentham's main ideas and an extensive bibliographical study of recent critical work on Bentham. Professor Rosen's essay also contains a new analysis of the principle of utility in Bentham's philosophy which is compared with its use in Hume and J. S. Mill. (shrink)

Most people who defend physician-assisted death (PAD) endorse the Joint View, which holds that two conditions—autonomy and welfare—must be satisfied for PAD to be justified. In this paper, we defend an Autonomy Only view. We argue that the welfare condition is either otiose on the most plausible account of the autonomy condition, or else is implausibly restrictive, particularly once we account for the broad range of reasons patients cite for desiring PAD, such as “tired of life” cases. Moreover, many of (...) the common objections to an Autonomy Only view fail once we understand the extent of the autonomy condition’s requirements—in particular, the importance of one’s values for autonomous choices. If our view is correct, then the scope of permissible PAD is broader than is currently accepted in both the philosophical literature and the law, and therefore poses an important challenge to this widely accepted view on justified PAD. (shrink)

This paper describes an AFOSR-supported basic research program that focuses on developing a new framework for combining hard with soft data in order to improve space situational awareness. The goal is to provide, in an automatic and near real-time fashion, a ranking of possible threats to blue assets (assets trying to be protected) from red assets (assets with hostile intentions). The approach is based on Conceptual Spaces models, which combine features from traditional associative and symbolic cognitive models. While Conceptual Spaces (...) are revolutionary, they lack an underlying mathematical framework. Several such frameworks have attempted to represent Conceptual Spaces, but by far the most robust is the model developed by Holender. His model utilizes integer linear programming in order to obtain an overall similarity value between observations and concepts that support the formation of hypotheses. This paper will describe a method for building Conceptual Spaces models for threats that utilizes ontologies as a means to provide a clear semantic foundation for this inferencing process; in particular threat ontologies and space domain ontologies are developed and employed in this approach. A space situational awareness use-case is presented involving a kinetic kill scenario and results are shown to assess the performance of this fusion-based inferencing framework. (shrink)