Ioannis G. Ntagkas

Primitives are both important and unavoidable, and which set of primitives we endorse will greatly shape our theories and how those theories provide solutions to the problems that we take to be important. After introducing the notion of a primitive posit, I discuss the different kinds of primitives that we might posit. Following Cowling (2013), I distinguish between ontological and ideological primitives, and, following Benovsky (2013) between functional and content views of primitives. I then propose that these two distinctions cut across each other leading to four types of primitive posits. I then argue that theoretical virtues should be taken to be meta-theoretical ideological primitives. I close with some reflections on the global nature of comparing sets of primitives.

ABSTRACT The idea that two words can be instances of the same word is a central intuition in our conception of language. This fact underlies many of the claims that we make about how we communicate, and how we understand each other. Given this, irrespective of what we think words are, it is common to think that any putative ontology of words, must be able to explain this feature of language. That is, we need to provide criteria of identity for word-types which allow us to individuate words such that it can be the case that two particular word-instances are instances of the same word-type (on the assumption that there are such types). One solution, recently further developed by Irmak (2018. “An Ontology of Words.” Erkenntnis. Advance online publication. doi:10.1007/s10670-018-0001-0), holds that words are individuated by their history. In this paper, I argue that this view either fails to account for our intuitions about word identity, or is too vague to be a plausible answer to the problem of word individuation.

Metaphysical and ontological debates, concerning what exists and the nature of reality, are perennial features of the philosophical landscape. However, some have argued that ontological debates are non-substantive, pointless, trivial, incoherent, or impossible. Debates about whether tables exist, for example, or about the nature of reality, are taken to be in some way deficient. This has led to a burgeoning literature studying the nature of metaphysical and ontological disputes themselves. One major debate within this context concerns the language of ontology. The central question is whether the nature of language influences or limits our ability to engage productively in ontological disputes. While we typically think that our language describes the world, or at least can accurately describe the world, there have been many who have argued that the nature of language inherently influences and limits our attempts to understand the nature of reality-that our claims about what exists are, in fact, merely a reflection of how we happen to speak or think. The Language of Ontology collects chapters from established participants in the debate alongside new voices, to explore the range of issues relating to our ability or inability to get beyond the limits of our language.

Given the centrality of arguments from vicious infinite regress to our philosophical reasoning, it is little wonder that they should also appear on the catalogue of arguments offered in defense of theses that pertain to the fundamental structure of reality. In particular, the metaphysical foundationalist will argue that, on pain of vicious infinite regress, there must be something fundamental. But why think that infinite regresses of grounds are vicious? I explore existing proposed accounts of viciousness cast in terms of contradictions, dependence, failed reductive theories and parsimony. I argue that no one of these accounts adequately captures the conditions under which an infinite regress—any infinite regress—is vicious as opposed to benign. In their place, I suggest an account of viciousness in terms of explanatory failure. If this account is correct, infinite grounding regresses are not necessarily vicious; and we must be much more careful employing such arguments to the conclusion that there has to be something fundamental.

Metaphysicians of a certain stripe are almost unanimously of the view that grounding is necessarily irreflexive, asymmetric, transitive, and well-founded. They deny the possibility of circles of ground and, therewith, the possibility of species of metaphysical coherentism. But what's so bad about circles of ground? One problem for coherentism might be that it ushers in anti-foundationalism: grounding loops give rise to infinite regresses. And this is bad because infinite grounding regresses are vicious. This article argues that circles of ground do not necessarily give rise to infinite regresses, and where they do, those regresses are not necessarily vicious.

Although it is very often taken for granted that there is something fundamental, the literature appears to have developed with little to no careful consideration of what exactly it is that the fundamentalia are supposed to do. If we are to have a good reason to believe that there is something fundamental, we need not only to know what exactly it is that the fundamentalia are invoked for, but why it is that nothing else is available for the task to hand. A good argument in defense of fundamentality, then, will contain an assumption that stipulates an explanatory target; along with a second, crucial, assumption that tells us that no dependent entity is available to do the work that needs to be done. In this paper, I explore both of these assumptions.

Philosophical questions regarding the nature and methodology of philosophical inquiry have garnered much attention in recent years. Perhaps nowhere are these discussions more developed than in relation to the field of metaphysics. The Routledge Handbook of Metametaphysics is an outstanding reference source to this growing subject. It comprises thirty-eight chapters written by leading international contributors, and is arranged around five themes: • The history of metametaphysics • Neo-Quineanism (and its objectors) • Alternative conceptions of metaphysics • The epistemology of metaphysics • Science and metaphysics. Essential reading for students and researchers in metaphysics, philosophical methodology, and ontology, The Routledge Handbook of Metametaphysics will also be of interest to those in closely related subjects such as philosophy of language, logic, and philosophy of science.

What is the nature of, and what is the relationship between, external objects and our visual perceptual experience of them? In this book, Frank Jackson defends the answers provided by the traditional Representative theory of perception. He argues, among other things that we are never immediately aware of external objects, that they are the causes of our perceptual experiences and that they have only the primary qualities. In the course of the argument, sense data and the distinction between mediate and immediate perception receive detailed defences and the author criticises attempts to reduce perceiving the believing and to show that the Representative theory makes the external world unknowable. Jackson recognises that his views are unfashionable but argues in detail that they are to be preferred to their currently favoured competitors. It will become an obvious point of reference for all future work on the philosophy of perception.

Frank Jackson champions the cause of conceptual analysis as central to philosophical inquiry. In recent years conceptual analysis has been undervalued and widely misunderstood, suggests Jackson. He argues that such analysis is mistakenly clouded in mystery, preventing a whole range of important questions from being productively addressed. He anchors his argument in discussions of specific philosophical issues, starting with the metaphysical doctrine of physicalism and moving on, via free will, meaning, personal identity, motion, and change, to ethics and the philosophy of color. In this way the book not only offers a methodological program for philosophy, but also casts new light on some much-debated problems and their interrelations

David Braddon-Mitchell and Frank Jackson’s popular introduction to philosophy of mind and cognition is now available in a fully revised and updated edition. Ensures that the most recent developments in the philosophy of mind and cognitive science are brought together into a coherent, accessible whole. Revisions respond to feedback from students and teachers and make the volume even more useful for courses. New material includes: a section on Descartes’ famous objection to materialism; extended treatment of connectionism; coverage of the view that psychology is autonomous; fuller discussion of recent debates over phenomenal experience; and much more.

In this paper, I question the orthodox position that true belief is a fundamental epistemic value. I begin by raising a particularly epistemic version of the so-called “value problem of knowledge” in order to set up the basic explanandum and to motivate some of the claims to follow. In the second section, I take aim at what I call “bottom-up approaches” to this value problem, views that attempt to explain the added epistemic value of knowledge in terms of its relation to a more fundamental value of true belief. The final section is a presentation of a value-theoretic alternative, one that explains the value problem presented in the first section while also doing justice to intuitions that may cause us to worry about bottom-up approaches. In short,knowledgeand not mere true belief is a fundamental epistemic value as it is the constitutive goal of propositional inquiry.

Kant's original version of transcendental philosophy took both Euclidean geometry and the Newtonian laws of motion to be synthetic a priori constitutive principles—which, from Kant's point of view, function as necessary presuppositions for applying our fundamental concepts of space, time, matter, and motion to our sensible experience of the natural world. Although Kant had very good reasons to view the principles in question as having such a constitutively a priori role, we now know, in the wake of Einstein's work, that they are not in fact a priori in the stronger sense of being fixed necessary conditions for all human experience in general, eternally valid once and for all. And it is for precisely this reason that Kant's original version of transcendental philosophy must now be either rejected entirely or radically reconceived. Most philosophy of science since Einstein has taken the former route: the dominant view in logical empiricism, for example, was that the Kantian synthetic a priori had to be rejected once and for all in the light of the general theory of relativity

Three-dimensional material models of molecules were used throughout the 19th century, either functioning as a mere representation or opening new epistemic horizons. In this paper, two case studies are examined: the 1875 models of van ‘t Hoff and the 1890 models of Sachse. What is unique in these two case studies is that both models were not only folded, but were also conceptualized mathematically. When viewed in light of the chemical research of that period not only were both of these aspects, considered in their singularity, exceptional, but also taken together may be thought of as a subversion of the way molecules were chemically investigated in the 19th century. Concentrating on this unique shared characteristic in the models of van ‘t Hoff and the models of Sachse, this paper deals with the shifts and displacements between their operational methods and existence: between their technical and epistemological aspects and the fact that they were folded, which was forgotten or simply ignored in the subsequent development of chemistry.

In this collection of essays one of the preeminent philosophers of science writing offers a reinterpretation of the enduring significance of logical positivism, the revolutionary philosophical movement centered around the Vienna Circle in the 1920s and 30s. Michael Friedman argues that the logical positivists were radicals not by presenting a new version of empiricism but rather by offering a new conception of a priori knowledge and its role in empirical knowledge. This collection will be mandatory reading for any philosopher or historian of science interested in the history of logical positivism in particular or the evolution of modern philosophy in general.

The view of substance defended by William Ockham and John Buridan in the fourteenth century differs radically from the traditional Aristotelian or Thomistic view of substance. Their metaphysical position of substance not only influences the development of natural philosophy, it also changes the preconditions for cognition and epistemology. In this paper I examine the implications of this view on Buridan’s epistemology and particularly on the compatibility of his view of substance with his claim that we have simple (absolute) substance concepts. I conclude that his metaphysics undermines this claim, but I also offer a suggestion for a possible solution to this problem.

In this article, the author studies some central concepts in Avicenna's and sī's modal logics as presented in Avicenna's Al-Ish r t wa'l Tan īh t ( Pointers and Reminders ) and in sī's commentary. In this work, Avicenna introduces some remarkable distinctions in order to interpret Aristotle's modal syllogistic in the Prior Analytics . The author outlines a new interpretation of absolute sentences as temporally indefinite sentences and argues on the basis of this that Avicenna seems to subscribe to the Principle of Plenitude. He also shows that he has no valid proof of the modal conversion rules and that he uses some rather ad hoc distinctions to show that Aristotle's modal syllogistic is correct. The author also notes some interesting differences between Avicenna's and sī's approaches to modal logic

Al-Ghazālī’s Maqāsid al-falāsifa is an intelligent reworking of Avicenna’s Dānesh-name (Book of Science). It was assumed by Latin scholastics that the Maqāsid contained the views of Al-Ghazālī himself. Very well read in Latin translation, it was the basic text from which the Latin authors gained their knowledge of Arabic logic. This article examines the views on the form and matter of the syllogism given in the Maqāsid and considers how they would have been viewed by a Latin reader in the thirteenth century.