Chemistry is the study of the structure and transformation of matter. When Aristotle founded the field in the 4th century BCE, his conceptual grasp of the nature of matter was tailored to accommodate a relatively simple range of observable phenomena. In the 21st century, chemistry has become the largest scientific discipline, producing over half a million publications a year ranging from direct empirical investigations to substantial theoretical work. However, the specialized interest in the conceptual issues arising in chemistry, hereafter Philosophy (...) of Chemistry, is a relatively recent addition to philosophy of science. Philosophy of chemistry has two major parts. In the first, conceptual issues arising within chemistry are carefully articulated and analyzed. Such questions which are internal to chemistry include the nature of substance, atomism, the chemical bond, and synthesis. In the second, traditional topics in philosophy of science such as realism, reduction, explanation, confirmation, and modeling are taken up within the context of chemistry. (shrink)

By their own account, physicalists are committed to the claim that physics is causally complete, or closed. The claim is presented as an empirical one. However, detailed and explicit empirical arguments for the claim are rare. I argue that molecular models are a key source of evidence but that, on closer inspection, they do not support the completeness claim.

In this paper I examine the relationship between historians, philosophers and sociologists of science, and indeed scientists themselves. I argue that they co-habit a shared intellectual territory ; and they should be able to do so peacefully, and with mutual respect, even if they disagree radically about how to describe the methods and results of science. I then go on to explore some of the challenges to mutually respectful cohabitation between history, philosophy and sociology of science. I conclude by identifying (...) a familiar kind of project in the philosophy of science which seeks to explore the worldview of a particular scientific discipline, and argue that it too has a right to explore the shared territory even though some historians and sociologists may find it methodologically suspect. (shrink)

During active vision, the eyes continually scan the visual environment using saccadic scanning movements. This target article presents an information processing model for the control of these movements, with some close parallels to established physiological processes in the oculomotor system. Two separate pathways are concerned with the spatial and the temporal programming of the movement. In the temporal pathway there is spatially distributed coding and the saccade target is selected from a Both pathways descend through a hierarchy of levels, the (...) lower ones operating automatically. Visual onsets have automatic access to the eye control system via the lower levels. Various centres in each pathway are interconnected via reciprocal inhibition. The model accounts for a number of well-established phenomena in target-elicited saccades: the gap effect, express saccades, the remote distractor effect, and the global effect. High-level control of the pathways in tasks such as visual search and reading is discussed; it operates through spatial selection and search selection, which generally combine in an automated way. The model is examined in relation to data from patients with unilateral neglect. (shrink)

Our target article discussed how emerging knowledge of the physiological processes involved in the control of saccadic eye movements provided the basis for a functional framework in which to understand the programming of such movements. The commentators raised many interesting issues in their varied responses that ranged from detailed discussion of the physiological substrate through issues of saccade control in reading. New evidence at the physiological level demonstrates that some elaborations are needed to the framework we proposed. Most clearly, the (...) spatial selection process operates in a manner different from our suggestion of an increase in activity in the salience map. Some commentators make the interesting and welcome proposal that the functional processes we outline may in fact be implemented with an even more unified physiological substrate (continuity between collicular fixation and build-up cells) than we envisaged. Extensions to the framework are discussed involving the planning of sequential saccades, saccades made in crossmodal situations, the influences of learning and memory, and binocular saccades. We consider carefully the commentaries proposing explicit attentional and/or executive processes in the programming of saccades. We integrate the comments of researchers investigating saccade control in neurological and neuropsychiatric patients and finally discuss whether the framework can account for saccades made in the course of reading. (shrink)

In this article I examine several related views expressed by Robin Hendry concerning molecular structure, emergence and chemical bonding. There is a long-standing problem in the philosophy of chemistry arising from the fact that molecular structure cannot be strictly derived from quantum mechanics. Two or more compounds which share a molecular formula, but which differ with respect to their structures, have identical Hamiltonian operators within the quantum mechanical formalism. As a consequence, the properties of all such isomers yield precisely (...) the same calculated quantities such as their energies, dipole moments etc. The only means through which the difference between the isomers can be recovered is to build their structures into the quantum mechanical calculations, something that is carried out by the application of the Born-Oppenheimer approximation. Consequently, it has been argued by many authors that molecular structure is written in ‘by hand’ rather than derived. Robin Hendry is one such author, but he goes a great deal further by proposing that this situation implies the existence of emergence and downward causation. In the current article I argue that there are alternative explanations which render emergence and downward causation redundant. Such an alternative lies in the notion of quantum decoherence and the appeal to work in the foundations of physics, which posits that the various isomers exist as a superposition until their wavefunctions are collapsed either by observation or by interacting with their environment. Hendry also alludes to a debate among chemists as to whether chemical bonds are real or not, in the sense of directional connections between two or more nuclei in any given molecule. I reject this view and propose that the structural and energetic views of chemical bonding, that have been discussed by some philosophers of chemistry including Hendry, do not refer to any essential ontological differences. I agree that chemists view bonding in a more realistic fashion and may consider bonds to be in some senses real, while physicists may consider bonding in more abstract energetic terms. However, I do not believe that such differences in scientific practice and attitudes should be considered to offer a window as to the ontological status of bonding or whether bonding is real. Finally, I discuss the kinetic energy school of chemical bonding which would seem to challenge any notion of bonds as directional entities, since bonding is no longer regarded as being primarily due to the build-up of electron density between nuclei. (shrink)

In this article I examine several related views expressed by Robin Hendry concerning molecular structure, emergence and chemical bonding. There is a long-standing problem in the philosophy of chemistry arising from the fact that molecular structure cannot be strictly derived from quantum mechanics. Two or more compounds which share a molecular formula, but which differ with respect to their structures, have identical Hamiltonian operators within the quantum mechanical formalism. As a consequence, the properties of all such isomers yield precisely (...) the same calculated quantities such as their energies, dipole moments etc. The only means through which the difference between the isomers can be recovered is to build their structures into the quantum mechanical calculations, something that is carried out by the application of the Born-Oppenheimer approximation. Consequently, it has been argued by many authors that molecular structure is written in ‘by hand’ rather than derived. Robin Hendry is one such author, but he goes a great deal further by proposing that this situation implies the existence of emergence and downward causation. In the current article I argue that there are alternative explanations which render emergence and downward causation redundant. Such an alternative lies in the notion of quantum decoherence and the appeal to work in the foundations of physics, which posits that the various isomers exist as a superposition until their wavefunctions are collapsed either by observation or by interacting with their environment.Hendry also alludes to a debate among chemists as to whether chemical bonds are real or not, in the sense of directional connections between two or more nuclei in any given molecule. I reject this view and propose that the structural and energetic views of chemical bonding, that have been discussed by some philosophers of chemistry including Hendry, do not refer to any essential ontological differences. I agree that chemists view bonding in a more realistic fashion and may consider bonds to be in some senses real, while physicists may consider bonding in more abstract energetic terms. However, I do not believe that such differences in scientific practice and attitudes should be considered to offer a window as to the ontological status of bonding or whether bonding is real. Finally, I discuss the kinetic energy school of chemical bonding which would seem to challenge any notion of bonds as directional entities, since bonding is no longer regarded as being primarily due to the build-up of electron density between nuclei. (shrink)

Robin Hendry has recently argued that although the term ‘element’ has traditionally been used in two different senses, there has nonetheless been a continuity of reference. The present article examines this author’s historical and philosophical claims and suggests that he has misdiagnosed the situation in several respects. In particular it is claimed that Hendry’s arguments for the nature of one particular element, oxygen, do not generalize to all elements as he implies. The second main objection is to Hendry’s view (...) that the qua problem can be illuminated by appeal to the intention of scientists.Keywords: Element; Simple substance; Basic substance; Antoine Lavoisier; Dmitri Mendeleev; Reference; Qua problem. (shrink)

Robin Hendry has presented an account of two equally valid ways of understanding the nature of chemical bonding, consisting of what the terms the structural and the energetic views respectively. In response, Weisberg has issued a “challenge to the structural view”, thus implying that the energetic view is the more correct of the two conceptions. In doing so Weisberg identifies the delocalization of electrons as the one robust feature that underlies the increasingly accurate quantum mechanical calculations starting with the (...) Heitler-London method and moving on to such approaches as the valence bond and molecular orbital theories of chemical bonding. The present article provides a critical evaluation of Weisberg’s article and concludes that he fails to characterize the nature of chemical bonding in several respects. I claim that Hendry’s structural and energetic views remain as equally viable ways of understanding chemical bonding. Whereas the structural view is more appropriate for chemists, the energetic view is preferable to physicists. Neither view is more correct unless one subscribes to the naively reductionist view of considering that the more physical energetic view is the more correct one. (shrink)

One of the most plausible and widely discussed examples of strong emergence is molecular structure. The only detailed account of it, which has been very influential, is due to Robin Hendry and is formulated in terms of downward causation. This paper explains Hendry’s account of the strong emergence of molecular structure and argues that it is coherent only if one assumes a diachronic reflexive notion of downward causation. However, in the context of this notion of downward causation, the strong (...) emergence of molecular structure faces three challenges that have not been met and which have so far remained unnoticed. First, the putative empirical evidence presented for the strong emergence of molecular structure equally undermines supervenience, which is one of the main tenets of strong emergence. Secondly, it is ambiguous how the assumption of determinate nuclear positions is invoked for the support of strong emergence, as the role of this assumption in Hendry’s argument can be interpreted in more than one way. Lastly, there are understandings of causation which render the postulation of a downward causal relation between a molecule’s structure and its quantum mechanical entities, untenable. (shrink)

Downward causation plays a fundamental role in many theories of metaphysics and philosophy of mind. It is strictly connected with many topics in philosophy, including but not limited to: emergence, mental causation, the nature of causation, the nature of causal powers and dispositions, laws of nature, and the possibility of ontological and epistemic reductions. _Philosophical and Scientific Perspectives on Downward Causation_ brings together experts from different fields—including William Bechtel, Stewart Clark and Tom Lancaster, Carl Gillett, John Heil, Robin F. (...) Hendry, Max Kistler, Stephen Mumford and Rani Lill Anjum—who delve into classic and unexplored lines of philosophical inquiry related to downward causation. It critically assesses the possibility of downward causation given different ontological assumptions and explores the connection between downward causation and the metaphysics of causation and dispositions. Finally, it presents different cases of downward causation in empirical fields such as physics, chemistry, biology and the neurosciences. This volume is both a useful introduction and a collection of original contributions on this fascinating and hotly debated philosophical topic. (shrink)

WE must first state the subject of our inquiry and the faculty to which it belongs: its subject is demonstration and the faculty that carries it out demonstrative science.

Leading experts in the field contributing to this volume make the case for the singularity of thought and debate a broad spectrum of issues it raises, including ...

Overview The debate over the semantics of proper names has, of late, heated up, focusing on the relative merits of referentialism and predicativism. Referentialists maintain that the semantic function of proper names is to designate individuals. They hold that a proper name, as it occurs in a sentence in a context of use, refers to a specific individual that is its referent and has just that individual as its semantic content, its contribution to the proposition expressed by the sentence. Furthermore, (...) a proper name contributes its referent to the proposition expressed by virtue of mechanisms of direct reference to individuals, not by virtue of expressing properties. Predicativists embrace an opposing view according to which proper names are just a special kind of common noun. Their semantic function is to designate properties of individuals. A proper name, as it occurs in a sentence in a context of use, expresses a property, and that property is its contribution to the proposition expr .. (shrink)

This thesis investigates the epistemological and metaphysical relations between chemistry and quantum mechanics. These relations are examined with respect to how chemistry and quantum mechanics each describe a single inert molecule. A review of how these relations are understood in the literature shows that there is a proliferation of positions which focus on how chemistry is separate from quantum mechanics. This proliferation is accompanied by a tendency within the philosophy of chemistry community to connect the legitimacy of the field with (...) the autonomy of chemistry. First, it is argued that this connection should not be made. Secondly, it is argued that chemistry and quantum mechanics are unified in accordance with Harold Kincaid’s model of non-reductive unity because the two theories exhibit particular epistemic and metaphysical interconnections. Thirdly, a metaphysical account is examined which is incompatible with Kincaid’s model of unity; namely strong emergence as understood by Robin Hendry. According to Hendry, the structure of a single inert molecule strongly emerges from its quantum mechanical entities in the sense that there is downward causation. However, Hendry’s defense of this account faces certain problems. Moreover, the putative empirical evidence for his understanding of strong emergence can be explained without invoking strong emergence. This is shown by considering how quantum mechanics assumes an idealized understanding of a molecule’s stability and structure. In the light of the philosophical literature on idealizations, this idealization can be interpreted in two different ways, both of which explain why quantum mechanics describes the structure of a single molecule the way it does, without assuming strong emergence in Hendry’s sense. Each interpretation has philosophical implications regarding the nature of chemical properties, and the relation of chemistry and quantum mechanics. These implications are consistent with Kincaid’s model of unity and thus further support chemistry’s unity with quantum mechanics (as per Kincaid). (shrink)

The reclamation of slurs raises a host of important questions. Some are linguistic: What are the linguistic conventions governing the slur post-reclamation and how are they related to the conventions governing it pre-reclamation? What mechanisms engender the shift? Others bend toward the social: Why do a slur’s targets have a special privilege in initiating its reclamation? Is there a systematic explanation why prohibitions on out-group use of reclaimed slurs vary from slur to slur? And how does reclamation contribute to shaping (...) social identities and reversing oppressive social norms and stigma? Most analyses of slur reclamation advance a single model to answer these questions. The author argues that there are different varieties of reclamation. Two predominate, what she calls pride reclamation and insular reclamation. While many features unite pride and insular reclamation, they differ with respect to the purpose of the reclamatory act, the linguistic mechanisms reclaimers employ to execute the linguistic change, and the social and grammatical roles of the reclaimed slur. By distinguishing these two types of reclamation and offering a fine-grained characterization of their properties, the author argues that we gain deeper insight into the reasons why slurs may in principle only be ignited by the target group and why pride- but not insular-reclaimed slurs become available for use by out-group members. (shrink)

As a class of terms and mental representations, proper names and mental names possess an important function that outstrips their semantic and psycho-semantic functions as common, rigid devices of direct reference and singular mental representations of their referents, respectively. They also function as abstract linguistic markers that signal and underscore their referents' individuality. I promote this thesis to explain why we give proper names to certain particulars, but not others; to account for the transfer of singular thought via communication with (...) proper names; and, more generally, to support a cognitivist, not acquaintance or instrumentalist, theory of singular thought. (shrink)

Cryonics is the preservation of legally dead human bodies at the temperature of liquid nitrogen in the hope that future technologies will be able to revive them. In philosophical debates surrounding this practice, arguments often focus on prudential implications of cryopreservation, or moral arguments on a societal level. In this paper, we claim that this debate is incomplete, since it does not take into account a significant relational concern about cryonics. Specifically, we argue that attention should be paid to the (...) potential implications of cryopreservation for the mourning processes of surviving loved ones. Cryopreservation increases the likelihood of disruption of the practical and mental tasks involved in a successful mourning process, which can negatively impact survivors of the cryopreserved patient. To illustrate my argument, we will draw on a case study from the 2019 documentaryHope Frozen. We aim to introduce this concern, in order to gain a more complete view on the potential implications of cryopreservation. (shrink)

Donnellan famously argued that while one can fix the reference of a name with a definite description, one cannot thereby have a de re belief about the named object. All that is generated is meta-linguistic knowledge that the sentence “If there is a unique F, then N is F” is true. Donnellan’s argument and the sceptical position are extremely influential. This article aims to show that Donnellan’s argument is unsound, and that the Millian who embraces Donnellan’s scepticism that the reference-fixer (...) cannot secure the relevant de re belief faces a serious problem: Millianism about names plus scepticism about the reference-fixer’s de re belief conflicts with what seems to be an analytical thesis about the relationship between semantic content and understanding. The upshot is that the Millian has good reason to seek an alternative to scepticism. (shrink)

Controversy remains over exactly why Frege aimed to estabish logicism. In this essay, I argue that the most influential interpretations of Frege's motivations fall short because they misunderstand or neglect Frege's claims that axioms must be self-evident. I offer an interpretation of his appeals to self-evidence and attempt to show that they reveal a previously overlooked motivation for establishing logicism, one which has roots in the Euclidean rationalist tradition. More specifically, my view is that Frege had two notions of self-evidence. (...) One notion is that of a truth being foundationally secure, yet not grounded on any other truth. The second notion is that of a truth that requires only clearly grasping its content for rational, a priori justified recognition of its truth. The overarching thesis I develop is that Frege required that axioms be self-evident in both senses, and he relied on judging propositions to be self-evident as part of his fallibilist method for identifying a foundation of arithmetic. Consequently, we must recognize both notions in order to understand how Frege construes ultimate foundational proofs, his methodology for discovering and identifying such proofs, and why he thought the propositions of arithmetic required proof. (shrink)

Clarence Sloat, Ora Matushansky, and Delia Graff Fara advocate a Syntactic Rationale on behalf of predicativism, the view that names are predicates in all of their occurrences. Each argues that a set of surprising syntactic data compels us to recognize names as a special variety of count noun. This data set, they say, reveals that names’ interaction with the determiner system differs from that of common count nouns only with respect to the definite article ‘the’. They conclude that this special (...) distribution of names is best explained by the-predicativism, the view that posits the existence of the null-determiner ‘the’ preceding bare singular names. This essay argues that they have incorrectly discerned the syntactic facts: their critical data point concerning the ungrammaticality of sentences like “The Katherine wants coffee” is mistaken. Such sentences’ grammaticality undermines the Syntactic Rationale and presents serious auxiliary problems for predicativism. (shrink)

Theories of slurs aim to explain how – via semantics, pragmatics, or other mechanisms – speakers who use slurs convey that targets are inferior persons. I present two novel problems. The Slur Creation Problem: How do terms come to be slurs? An expression ‘e’ is introduced into the language. What are the mechanisms by which ‘e’ comes to possess properties distinctive of slurs? The Bigotry Formation Problem: Speakers’ uses of slurs are a prime mechanism of bigotry formation, not solely bigotry (...) perpetuation. With a use of a slur, how are speakers able to introduce new bigoted attitudes and actions toward targets? I argue that expressivism offers powerful resources to solve the problems. (shrink)

Names are referring expressions and interact with the determiner system only exceptionally, in stark contrast with count nouns. The-predicativists like Sloat, Matushansky, and Fara claim otherwise, maintaining that syntactic data offers indicates that names belong to a special syntactic category which differs from common count nouns only in how they interact with ‘the’. I argue that the-predicativists have incorrectly discerned the syntactic facts. They have bypassed a large range of important syntactic data and misconstrued a critical data point on which (...) they ground the-predicativism. The right data offers new compelling syntactic grounds for referentialism. (shrink)

lnfallibilism about a priori justification is the thesis that for an agent A to be a priori justified in believing p, that which justifies A’s belief that p must guarantee the truth of p. No analogous thesis is thought to obtain for empirically justified beliefs. The aim of this article is to argue that infallibilism about the a priori is an untenable philosophical position and to provide theoretical understanding why we not only can be, but rather must be, a priori (...) justified in believing some false propositions. The argument develops notions of obviousness and conceptual understanding as a means of affording insight into the conditions for having a priori justification and, consequently, into why infallibilism cannot stand. (shrink)

We live in a 'bimoral' society, in which people govern their lives by two contrasting sets of principles. On the one hand there are the principles associated with traditional morality. Although these allow a modicum of self-interest, their emphasis is on our duties and obligations to others: to treat people honestly and with respect, to treat them fairly and without prejudice, to help and are for them when needed, and ultimately, to put their needs above their own. On the other (...) hand there are the principles associated with the entrepreneurial self-interest. These also impose obligations, but of a much more limited kind. Their emphasis is competitive rather than cooperative: to advance our own interests rather than to meet the needs of others. Both sets of principles have always been present in society but in recent years, traditional moral authorities have lost much of their force and the morality of self-interest has acquired a much greater social legitimacy, over a much wider field of behavior, than ever before. The result of this is that in many situations it is no longer at all apparent which set of principles should take precedence. In this book, John Hendry traces the cultural and historical origins of the 'bimoral' society have also led to new, more flexible forms of organizing, which have released people's entrepreneurial energies and significantly enhanced the creative capacities of business. Working within these organizations, however is fraught with moral tensions as obligations and self-interest conflict and managers are pulled in all sorts of different directions. Managing them successfully poses major new challenges of leadership, and 'moral' management, as the technical problem-solving that previously characterized managerial work is increasingly accomplished by technology and market mechanisms. The key role of management becomes the political and moral one of determining purposes and priorities, reconciling divergent interests, and nurturing trust in interpersonal relationships. Exploring these tensions and challenges, Hendry identifies new issues of contemporary management and puts recognized issues into context. He also explores the challenges posed for a post-traditional society as it seeks to regulate and govern an increasingly powerful and global business sector. (shrink)

2014 Reprint of 1945 Edition. Full facsimile of the original edition, not reproduced with Optical Recognition Software. The first part deals with Greek cosmology and is the longest, the most elaborate and, on the whole, the liveliest part of a book which never deviates into dullness. The dominant thought in Greek cosmology, Collingwood holds, was the microcosm-macrocosm analogy, nature being the substance of something ensouled where "soul" meant the self-moving. Part II is "The Renaissance View of Nature." Collingwood describes the (...) rise and decline of the deists' view of Nature as a machine designed by the Great Contriver who, having turned it out, watches it go. Part III, "The Modern View of Nature," deals with very recent or contemporary philosophy and science, discerning in it a radical evolutionism first in biology and later in cosmology. Remains to this day a classic text in the history of ideas. (shrink)

First published in 2002. Routledge is an imprint of Taylor & Francis, an informa company.

This work defends an interrelated set of theses in value-theory, normative ethics and meta-ethics. The three Parts correspond to these three areas. Part One (Value) defends a biocentric theory of moral standing, and then the coherence and objectivity of belief in intrinsic value, despite recent objections. Intrinsic value is located in the flourishing of living creatures; specifically, a neo-Aristotelian, species-relative account is supplied of wellbeing or flourishing, in terms of the development of the essential capacities of one's species. There follows (...) a theory of priorities, or of relative intrinsic value, in which the satisfaction of basic needs takes priority over other needs and over wants, and the interests of complex and sophisticated creatures over those of others, where they are at stake. Part Two defends a practice-consequentialist theory of the criteria of rightness and of obligation, which leaves room for supererogation, underpins our intuitions about justice, commends population growth only where it is genuinely desirable, and responds better than act-consequentialism to objections like that concerned with the separateness of persons. Part Three sifts meta-ethical theories, rejects moral relativism, and defends a cognitivist and naturalist meta-ethic. In defending analytical naturalism, it takes into account the latest literature on supervenience. By responding to recent discussions, this study supersedes my _Theory of Value and Obligation_ (1987). It is equipped with detailed end-notes and an ample bibliography, which could prove a research tool of itself. (shrink)

The first full exploration of the political thought of Jan Patocka, student of Husserl and Heidegger and mentor to Václav Havel.