The recent reemergence of theories that emphasize the semantic and conceptual aspects of emotions has also brought to attention questions about their rationality. There are essentially two standard senses in which emotions can be assessed for their rationality. First, emotions can be said to be categorically rational insofar as they presuppose our psychological capacities to be clearly conscious of distinctions, to engage and manipulate concepts, and hence to provide intentional descriptions as reasons for what we feel and are moved to (...) do. For this "cognitive" rationality we can apply the usual standards intrinsic to the processes of belief formation such as coherence, consistency, inferential validity, and appropriateness of evidence. Secondly, and derivatively of "rationality" as a teleological or strategic notion, emotions can be thought of as rational or irrational depending upon their function in fulfilling certain specified human purposes. While neither adhering to nor dismissing what these two mainstream perspectives afford, the following thesis is an alternative, yet complementary, project. Its aim is to "rationalize" emotions through insights obtained in programmatic examinations of their relationship to a number of critical features of being human: intentionality, expression and language, sense of self, responsibility, self-deception, and value cognition and moral agency. The idea is less to fit emotions within some formulaic description of rationality and more to let its potential definition emerge subsequently to these investigations. This reflects a conviction that rationality is not a unitary property of our minds but a complex stance towards the world. It also exhibits an awareness that, as evidenced by current debates, "rationality" is very much a contested notion. (shrink)

This scarce antiquarian book is a facsimile reprint of the original. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions that are true to the original work.

Brain Computer Interface (BCI) technology offers potential for human augmentation in areas ranging from communication to home automation, leisure and gaming. This paper addresses ethical challenges associated with the wider scale deployment of BCI as an assistive technology by documenting issues associated with the development of non-invasive BCI technology. Laboratory testing is normally carried out with volunteers but further testing with subjects, who may be in vulnerable groups is often needed to improve system operation. BCI development is technically complex, sometimes (...) requiring lengthy recording sessions to achieve the necessary personalisation of the paradigms, and this can present ethical challenges that vary depending on the subject group. The paper contributes to the on-going ethical discussion surrounding the deployment BCI outside the specialist laboratory and suggests some tentative guidelines for BCI research teams, appropriate to those deploying the technology, derived from experience on a multisite project. Any tension between deployment and technical progress must be managed by a formal process within a multidisciplinary consortium. (shrink)

The Unprovability of Consistency is concerned with connections between two branches of logic: proof theory and modal logic. Modal logic is the study of the principles that govern the concepts of necessity and possibility; proof theory is, in part, the study of those that govern provability and consistency. In this book, George Boolos looks at the principles of provability from the standpoint of modal logic. In doing so, he provides two perspectives on a debate in modal logic that has (...) persisted for at least thirty years between the followers of C. I. Lewis and W. V. O. Quine. The author employs semantic methods developed by Saul Kripke in his analysis of modal logical systems. The book will be of interest to advanced undergraduate and graduate students in logic, mathematics and philosophy, as well as to specialists in those fields. (shrink)

DNA helicases catalyze the disruption of the hydrogen bonds that hold the two strands of double‐stranded DNA together. This energy‐requiring unwinding reaction results in the formation of the single‐stranded DNA required as a template or reaction intermediate in DNA replication, repair and recombination. A combination of biochemical and genetic studies have been used to probe and define the roles of the multiple DNA helicases found in E. coli. This work and similar efforts in eukaryotic cells, although far from complete, have (...) established that DNA helicases are essential components of the machinery that interacts with the DNA molecule. (shrink)

Drawing from the lives of Ossie Davis, Frantz Fanon, Malcolm X, and W. E. B. Du Bois, as well as his own experience, and fully updated to account for what has transpired since the rise of the Black Lives Matter movement, Yancy provides an invaluable resource for students and teachers of courses in African American Studies, African American History, Philosophy of Race, and anyone else who wishes to examine what it means to be Black in America.

The only collection of Mead's writings published during his lifetime, these essays have heretofore been virtually inaccessible. Reck has collected twenty-five essays representing the full range and depth of Mead's thought. This penetrating volume will be of interest to those in philosophy, sociology, and social psychology. "The editor's well-organized introduction supplies an excellent outline of this system in its development. In view of the scattered sources from which these writings are gathered, it is a great service that this volume renders (...) not only to students of Mead, but to historians."--H. W. Schneider, Journal of the History of Philosophy. (shrink)

Es werden vier verbreitete Verwendungsweisen des Wortes ‘Argument’ beschrieben, an Beispielen erläutert und dann schrittweise expliziert. Die wichtigsten Explikata sind: ‘eine Satzfolge x ist ein deskriptives Argument in Standardform’, ‘ein deskriptives Argument x in Standardform ist bei der subjektiven Wahrscheinlichkeitsverteilung p stark (bzw. schwach)’, ‘ein Aussagesatz x ist bei der subjektiven Wahrscheinlichkeitsverteilung p ein Argument für (bzw. gegen) einen Aussagesatz y’, ‘ein geordneter Tripel x von deskriptiven Argumenten in Standardform, von Argumentebenen und von Argumentsträngen ist eine deskriptive Argumenthierarchie in Standardform’, (...) ‘eine deskriptive Argumenthierarchie x in Standardform ist gültig (bzw. ungültig; stichhaltig; konsistent; inkonsistent; sichtlich zirkelhaft; stark (bzw. schwach) bei der subjektiven Wahrscheinlichkeitsverteilung p)’. (shrink)

This article presents a comparative theory of subjective argument strength simple enough for application. Using the axioms and corollaries of the theory, anyone with an elementary knowledge of logic and probability theory can produce an at least minimally rational ranking of any set of arguments according to their subjective strength, provided that the arguments in question are descriptive ones in standard form. The basic idea is that the strength of argument A as seen by person x is a function of (...) three factors: x's degree of belief in the premisses of A; x's degree of belief in the conclusion of A under the assumption that all premisses of A are true; and x's belief in the conclusion of A under the assumption that not all premisses of A are true. (shrink)

Karl Popper discovered in 1938 that the unconditional probability of a conditional of the form ‘If A, then B’ normally exceeds the conditional probability of B given A, provided that ‘If A, then B’ is taken to mean the same as ‘Not (A and not B)’. So it was clear (but presumably only to him at that time) that the conditional probability of B given A cannot be reduced to the unconditional probability of the material conditional ‘If A, then B’. (...) I describe how this insight was developed in Popper’s writings and I add to this historical study a logical one, in which I compare laws of excess in Kolmogorov probability theory with laws of excess in Popper probability theory. (shrink)

I set up two axiomatic theories of inductive support within the framework of Kolmogorovian probability theory. I call these theories ‘Popperian theories of inductive support’ because I think that their specific axioms express the core meaning of the word ‘inductive support’ as used by Popper (and, presumably, by many others, including some inductivists). As is to be expected from Popperian theories of inductive support, the main theorem of each of them is an anti-induction theorem, the stronger one of them saying, (...) in fact, that the relation of inductive support is identical with the empty relation. It seems to me that an axiomatic treatment of the idea(s) of inductive support within orthodox probability theory could be worthwhile for at least three reasons. Firstly, an axiomatic treatment demands from the builder of a theory of inductive support to state clearly in the form of specific axioms what he means by ‘inductive support’. Perhaps the discussion of the new anti-induction proofs of Karl Popper and David Miller would have been more fruitful if they had given an explicit definition of what inductive support is or should be. Secondly, an axiomatic treatment of the idea(s) of inductive support within Kolmogorovian probability theory might be accommodating to those philosophers who do not completely trust Popperian probability theory for having theorems which orthodox Kolmogorovian probability theory lacks; a transparent derivation of anti-induction theorems within a Kolmogorovian frame might bring additional persuasive power to the original anti-induction proofs of Popper and Miller, developed within the framework of Popperian probability theory. Thirdly, one of the main advantages of the axiomatic method is that it facilitates criticism of its products: the axiomatic theories. On the one hand, it is much easier than usual to check whether those statements which have been distinguished as theorems really are theorems of the theory under examination. On the other hand, after we have convinced ourselves that these statements are indeed theorems, we can take a critical look at the axioms—especially if we have a negative attitude towards one of the theorems. Since anti-induction theorems are not popular at all, the adequacy of some of the axioms they are derived from will certainly be doubted. If doubt should lead to a search for alternative axioms, sheer negative attitudes might develop into constructive criticism and even lead to new discoveries. -/- I proceed as follows. In section 1, I start with a small but sufficiently strong axiomatic theory of deductive dependence, closely following Popper and Miller (1987). In section 2, I extend that starting theory to an elementary Kolmogorovian theory of unconditional probability, which I extend, in section 3, to an elementary Kolmogorovian theory of conditional probability, which in its turn gets extended, in section 4, to a standard theory of probabilistic dependence, which also gets extended, in section 5, to a standard theory of probabilistic support, the main theorem of which will be a theorem about the incompatibility of probabilistic support and deductive independence. In section 6, I extend the theory of probabilistic support to a weak Popperian theory of inductive support, which I extend, in section 7, to a strong Popperian theory of inductive support. In section 8, I reconsider Popper's anti-inductivist theses in the light of the anti-induction theorems. I conclude the paper with a short discussion of possible objections to our anti-induction theorems, paying special attention to the topic of deductive relevance, which has so far been neglected in the discussion of the anti-induction proofs of Popper and Miller. (shrink)

Abstract This article evaluates the ?drive toward greater autonomy? in lethally-armed unmanned systems. Following a summary of the main criticisms and challenges to lethal autonomy, both engineering and ethical, raised by opponents of this effort, the article turns toward solutions or responses that defense industries and military end users might seek to incorporate in design, testing and manufacturing to address these concerns. The way forward encompasses a two-fold testing procedure for reliability incorporating empirical, quantitative benchmarks of performance in compliance with (...) formalized and programmable rules of engagement, and a conception of ?due care? in product liability. This would be designed in analogy with procedures currently followed by well-intentioned governments and militaries with their own (human) military personnel, both to ensure against failure, and to accept responsibility and compensate victims of inadvertent and unintended accidents. The procedure is designed specifically to address objections first posed by Robert Sparrow (2007) and Noel Sharkey (2007), and echoed in P.W. Singer's critically acclaimed Wired for War (2009), that lethal autonomous systems cannot be meaningfully held accountable for commission of war crimes, and thus the development, manufacture, and deployment of such systems would constitute a violation of international law. (shrink)

In paragraph 21 of his "Logic of Scientific Discovery", Karl Popper characterizes with the help of two seemingly synonymous definitions the falsifiability of a theory as a logical relation between the theory itself and its basic statements. It is shown that his definitions do not agree with each other, and this result is applied to the problem of the falsifiability of contradictions, to the difference between falsifiable and empirical statements and to the demarcation criterion.

Zwischen 1987 und 1994 sandte ich 20 Briefe an Karl Popper. Die meisten betrafen Fragen bezüglich seiner Antiinduktionsbeweise und seiner Wahrscheinlichkeitstheorie, einige die organisatorische und inhaltliche Vorbereitung eines Fachgesprächs mit ihm in Kenly am 22. März 1989 (worauf hier nicht eingegangen werden soll), einige schließlich ganz oder in Teilen nicht-fachliche Angelegenheiten (die im vorliegenden Bericht ebenfalls unberücksichtigt bleiben). Von Karl Popper erhielt ich in diesem Zeitraum 10 Briefe. Der bedeutendste ist sein siebter, bestehend aus drei Teilen, geschrieben am 21., 22. (...) und 23. Oktober 1992, in dem er eine Vorform jener Definition der probabilistischen Unabhängigkeit entwickelte, die er 1994 im neuen Anhang *XX der 10. Auflage seiner Logik der Forschung (LdF) der wissenschaftstheoretischen Forschergemeinde vorstellte. Der berührendste ist sein letzter, geschrieben am 26. Juli 1994, in dem er trotz Erschöpfung mit Humor schildert, wie mühselig der Druck des Anhangs *XX verlaufen ist. Mein Bericht ist zugleich chronologisch und systematisch gegliedert: die ersten, vergleichsweise wenigen Briefe, großteils 1987 geschrieben, handeln von der Induktion; der große Rest, zeitlicher Schwerpunkt 1992, beschäftigt sich mit der Wahrscheinlichkeitstheorie. Das Kapitel 1 über Induktion ist in vier Abschnitte unterteilt: 1.1 Das Popper/Miller-Argument: eine Nachkonstruktion, 1.2 Karl Poppers Brief vom 25.8.1987: Deduktive Stützung, 1.3 Karl Poppers Brief vom 29.9.1987: Nochmals zur deduktiven Stützung, 1.4 Echt induktive Stützung und Schwächung: zwei eigene Beweise. Das Kapitel 2 über Wahrscheinlichkeit ist ebenfalls in vier Abschnitte unterteilt: 2.1 Ein Mangel an Überschußgesetzen in der Logic of Scientific Discovery, 2.2 Probabilistische Unabhängigkeit, 2.3 Wahrscheinlichkeitstheorie und Wahrscheinlichkeitssemantik, 2.4 Die neue Unabhängigkeitsdefinition im Anhang *XX der LdF. (shrink)

Bolzano hat seine Wahrscheinlichkeitslehre in 15 Punkten im § 14 des zweiten Teils seiner Religionswissenschaft sowie in 20 Punkten im § 161 des zweiten Bandes seiner Wissenschaftslehre niedergelegt. (Ich verweise auf die Religionswissenschaft mit 'RW II', auf die Wissenschaftslehre mit 'WL II'.) In der RW II (vgl. p. 37) ist seine Wahrscheinlichkeitslehre eingebettet in seine Ausführungen "Über die Natur der historischen Erkenntniß, besonders in Hinsicht auf Wunder", und die Lehrsätze, die er dort zusammenstellt, dienen dem ausdrücklichen Zweck, mit mathematischem Rüstzeug (...) Lehrmeinungen entgegentreten zu können, gemäß denen Wundererzählungen keine Glaubwürdigkeit zukommen könne. In der WL II (vgl. p. 171) führt Bolzano im großen und ganzen dieselben Lehrsätze an wie in der RW II, entwickelt nun aber die Wahrscheinlichkeitslehre innerhalb seiner Lehre von den Sätzen an sich. Dabei orientiert er sich zwar durchaus an den Lehrsätzen in den damaligen "Schriften über die Wahrscheinlichkeitsrechnung" (vg. WL II, p. 190), korrigiert aber dort, wo es ihm nötig erscheint (vgl. WL II, pp. 187–191), und leistet so im Grunde eine Reformulierung des elementaren Teils der Wahrscheinlichkeitslehre seiner Zeit innerhalb seiner logischen Theorie von den Sätzen an sich. — Ich bezwecke hier keine historische Studie über Bolzanos Wahrscheinlichkeitslehre, obwohl es von Interesse sein mag, herauszuschälen, worin Bolzano mit welchen Wahrscheinlichkeitstheoretikern seiner Zeit übereinstimmt, und worin nicht, insbesondere welche Schwächen von Bolzanos Wahrscheinlichkeitslehre Schwächen aller damaligen Wahrscheinlichkeitslehren waren. Eine wichtige systematische Studie über Bolzanos Wahrscheinlichkeitslehre bestünde — wie von Berg (1962, pp. 148-149) ansatzweise begonnen — in einer exakten Rekonstruktion seiner Wahrscheinlichkeitslehre innerhalb eines konsistenten logischen Systems der Sätze an sich. Ich werde im folgenden etwas bei weitem Bescheideneres, doch möglicherweise durchaus Fruchtbares versuchen, nämlich die Lehrsätze von Bolzanos Wahrscheinlichkeitslehre in die Sprache einer heutigen Wahrscheinlichkeitstheorie zu übersetzen und die übersetzten Lehrsätze dort herzuleiten, soweit dies möglich ist. Man könnte dann in einem zweiten Schritt, der hier nicht mehr unternommen wird, untersuchen, inwieweit jene Thesen, die den Herleitungstest überstanden haben, jenen Zweck erfüllen, den Bolzano ihnen ursprünglich zugedacht hat: als mathematisches Rüstzeug für seine Argumentationen gegen die Auffassung zu dienen, Wundererzählungen könnten nicht glaubwürdig sein. (shrink)

Paul Weingartner's classification of the sciences is analyzed in detail. There is a small mistake in the definition of the set of descriptive-normative sciences, which makes the classification incorrect, but which can easily be remedied.

The basic idea by means of which Popper and Miller proved the non-existence of inductive probabilistic support in 1983/1985/1987, is used to prove that inductive probabilistic countersupport does exist. So it seems that after falsification has won over verification on the deductive side of science, countersupport wins over support on the inductive side.

Despite its centrality and its familiarity, W. V. Quine's dispute with Rudolf Carnap over the analytic/synthetic distinction has lacked a satisfactory analysis. The impasse is usually explained either by judging that Quine's arguments are in reality quite weak, or by concluding instead that Carnap was incapable of appreciating their strength. This is unsatisfactory, as is the fact that on these readings it is usually unclear why Quine's own position is not subject to some of the very same arguments. A satisfying (...) and surprising account is here presented that stitches together the puzzling pieces of this important philosophical exchange and that in turn leads to an explanation of why it is so difficult to say whether anything of substance is at stake. (shrink)

We study the classes of hypersimple and semicomputable sets as well as their intersection in the weak truth table degrees. We construct degrees that are not bounded by hypersimple degrees outside any non-trivial upper cone of Turing degrees and show that the hypersimple-free c.e. wtt degrees are downwards dense in the c.e. wtt degrees. We also show that there is no maximal (w.r.t. ≤wtt) hypersimple wtt degree. Moreover, we consider the sets that are both hypersimple and semicomputable, characterize them as (...) the (bi-infinite) c.e. cuts of computable orderings of ℕ of order type ω+ω* and study their wtt degrees. We show that there are hypersimple degrees that are not bounded by any hypersimple semicomputable degree, investigate relationships with the join and look for maximal and minimal elements of related classes. (shrink)

Introduction.--Biographical notes.--General analysis of knowledge and the act.--Perceptual and manipulatory phases of the act.--Cosmology.--Value and the act.--Supplementary essays.

This review article critically examines the anthology Resurrecting the Death of God: The Origins, Influence, and Return of Radical Theology, edited by Daniel Peterson and G. Michael Zbaraschuk (Albany: State University of New York Press, 2014). After making brief but largely appreciative summary comments on a number of essays, the article focuses attention on contributions by John Cobb on the theology of Altizer, John Roth on Levinas, and J. W. Robbins on the politics of de Tocqueville's concept of God. Suggestions (...) are provided for inclusion of a wider swath of theologies that might be considered. (shrink)

Caribbean sociology accords with the Du Boisan paradigm of sociology as a science. Caribbean sociology originated as an undifferentiated discipline. It is a panoply of social thought integrated with history, political science, anthropology, psychology, and philosophy. Sociology has never been a discipline sufficient unto itself. To speak of Caribbean sociology is to introduce space and place, territory, and identity as parameters of a social scientific discipline that is yet to adhere to its own boundaries or adequately define itself. Caribbean countries (...) constitute the poor West, and it is a challenge of the discipline to study a region where half of its peoples have migrated and are migrating to the global north. Caribbean sociology contributed diverse if not also original perspectives on significant humanity and is rich in the quality and sophistication of its thought. The sociology of the Caribbean is a sociology of possibilities—a sociology of solutions to the problems of underdevelopment and unfreedom. In the tradition of the scientific sociology of W. E. B. Du Bois it is a quest for social justice. (shrink)

W.V. Quine has led many logicians in thinking that mathematical logic can offer insights into the syntax of natural language. One example of such an insight is the use of quantifier scope difference to resolve the ambiguity of sentences like ' I don't know every poem'. Such differences also are claimed to be useful in analyzing phrases such as 'the lady I saw you with'. But an older, Aristotelian theory of logical syntax can equally well resolve the ambiguity problem in (...) terms of term distribution. And it provides a better analysis of 'the lady' phrase by treating quantifiers as subject formatives rather than pronoun binders. (shrink)

W.V. Quine has led many logicians in thinking that mathematical logic can offer insights into the syntax of natural language. One example of such an insight is the use of quantifier scope difference to resolve the ambiguity of sentences like ' I don't know every poem'. Such differences also are claimed to be useful in analyzing phrases such as 'the lady I saw you with'. But an older, Aristotelian theory of logical syntax can equally well resolve the ambiguity problem in (...) terms of term distribution. And it provides a better analysis of 'the lady' phrase by treating quantifiers as subject formatives rather than pronoun binders. (shrink)

After a discourse about the literature on visual acuity before Hume, I discuss how the "size" of visual objects is defined and determined. I shall then present circumstantial, but commanding, evidence for the influence of James Jurin's Essay upon Distinct and Indistinct Vision on Hume's thought. This work contains well-supported findings incompatible with claims made in T 1.2, "Of the ideas of space and time," and elsewhere. Specifically, the prominent principle of the Treatise, "[w]hat consists of parts is distinguishable into (...) them, and what is distinguishable is separable" (T 1.2.1.3; SBN 27) is shown to be false. A powerful principle, it is a premise to the most important arguments of the Treatise, but is shunned in the Enquiry and later writings because, I believe, Hume had read Jurin. (shrink)

The obstacle to more objective knowledge of early Pythagoreanism is the ideological conflict over the proper mission of historiography. Not only the confusing evidence, but also the different investigative procedures and theories of history employed, make solving the Pythagorean problem difficult. I analyze the historiographic methodologies of some modern historians of Pythagoreanism in respect to the kinds of historical explanation they provide. Immediately ideological controversy arises between idealist and materialist historians. ;My critical evaluation proceeds from two theses. The content of (...) ideas reflects their social referents. Consequently, one must identify the class interests of early Pythagoreans. Writing history is a contemporary undertaking by which historians reflect their own social interests. Therefore, historiographic methodology continually must be objectified to overcome the subjectivism of historical relativism. ;I review the reconstructions of six historians. John Burnet, an empiricist, held that the Greeks entirely broke from their religious past to develop philosophy. F. M. Cornford, a Durkheimian, used anthropology to reveal philosophy's totemic content. J. E. Raven is a philologist; he maintaned that ancient philosophy was the Eleatic-Pythagorean debate. W. K. C. Guthrie, an eclectic, held that science served Pythagorean religious interests. These idealist historians attributed the Greek achievement to absolutized temperaments or racial factors; the development of ideas is not mediated by practical necessity. George Thomson and Alban Winspear are historical materialists. They explained ancient philosophy by showing the class interests of philosophers in a mercantile economy based on slave labor. ;After introducing the Pythagorean problem, I present, by chapter, first an exposition of each historian's account of the causes of Greek philosophy and then his exposition of early Pythagoreanism. My analyses follow each section. In the first part of the final chapter I discuss each historian in the context of the ideological controversy. In the second part I present a general outline of procedure for scientific historiography. (shrink)

George W. S. Bailey. prove that mental phenomena in general are not self- intimating in sense (3). Armstrong's argument is based on two claims: (a) Introspective awareness and its objects are distinct existences. (b) If introspective awareness ...

Those inquiring into the nature of mind have long been interested in the foundations of mathematics, and conversely this branch of knowledge is distinctive in that our access to it is purely through thought. A better understanding of mathematical thought should clarify the conceptual foundations of mathematics, and a deeper grasp of the latter should in turn illuminate the powers of mind through which mathematics is made available to us. The link between conceptions of mind and of mathematics has been (...) a central theme running through the great competing philosophies of mathematics of the twentieth century, though each has refashioned the connection and its import in distinctive ways. The present collection will be of interest to students of both mathematics and of mind. Contents include: "Introduction" by Alexander George; "What is Mathematics About?" by Michael Dummett; "The Advantages of Honest Toil over Theft" by George Boolos; "The Law of Excluded Middle and the Axiom of Choice" by W.W. Tait; "Mechanical Procedures and Mathematical Experience" by Wilfried Sieg; "Mathematical Intuition and Objectivity" by Daniel Isaacson; "Intuition and Number" by Charles Parsons; and "Hilbert's Axiomatic Method and the Laws of Thought" by Michael Hallett. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Carnap’s Construction of the World. The Aufbau and the Emergence of Logical Empiricism by Alan W. RichardsonRolf GeorgeAlan W. Richardson. Carnap’s Construction of the World. The Aufbau and the Emergence of Logical Empiricism. Cambridge: Cambridge University Press, 1998. Pp. x + 242. Cloth, $49.95.According to the author, the “received view” of Carnap’s Kantian treatise of 1928, Der Logische Aufbau der Welt, promulgated mostly by Quine (10), takes it (...) to be a continuation of Russell’s “external world program,” an attempt at “providing a systematic reduction of empirical discourse generally to discourse involving only sense data” (21). One of Richardson’s aims is to show that this is wrong: while Carnap holds that our knowledge begins in sensation, our “elementary experiences” are not conscious and thus do not obey Russell’s “principle of acquaintance.” While we have no conscious access to the first elements of cognition, logical constructions based on them lead to sense qualities, phenomenal items, and eventually to physical and even cultural objects.These constructions are also meant to solve the problem of objectivity. According to Carnap, individual streams of experience are not comparable at all, but “certain structural properties agree for all streams of experience” (Aufbau §66, 32), a point that Kant had also made: “In the relation between sensations lies something that is generally valid, even though each sensation has only private validity” (Reflection 653).Richardson describes Carnap’s constructions in a couple of well written and accessible chapters (31–91), one of them an overview, the other a discussion of the problem of objectivity. Then comes the “Kantian Problematic,” (92–116), centered on the synthetic a priori. He repeats Michael Friedman’s now familiar but mistaken point that, due to the limitations of Aristotelian logic, Kant could not have formulated simple statements about order structures: “between any two points there lies another” could not be formulated in any logic he knew, and he therefore had to call in pure intuition to handle mathematical constructions. But he could, and in fact did, make just such claims in the vernacular, which was the sole vehicle for the pellucid formulations of the classical theory of the continuum, from Bolzano to Weyerstrass.The next chapter brings us the heart of Richardson’s concerns, which is to establish neo-Kantian antecedents of the Aufbau. There are some biographical details of doubtful merit. The neo-Kantian Bauch is identified as Carnap’s “dissertation director,” and, in a perhaps unconscious slight to Carnap’s intelligence, as “the philosopher from whom Carnap learned what he knew about Kant” (116). Ten years before Carnap had indeed taken a seminar in the Critique of Pure Reason from Bauch, but perusal of the latter’s work does not encourage the thought that he had much to do with the thesis “Der Raum” (1922). In the event, a German ordinarius did not usually have a hand in the construction of a thesis, and often did not even read it. His job was to accept it on behalf of the university. We now know, for example, that Bauch’s teacher Rickert had an assistant evaluate Heidegger’s Habilitationsschrift never reading it himself. (It passed.)Richardson’s reflection on the neo-Kantian project relies mostly on Cassirer. This points to another problem with the Bauch connection. Bauch was a zealous anti-Semite, and did not think much of Cassirer and the Marburg school in general. He gave up the editorship of Kantstudien in 1916 because of the Jewish presence in the Kant Society, and [End Page 179] founded his own group and journal. Carnap nonetheless chose Kantstudien to publish his dissertation, perhaps to put more distance between himself and Bauch. Space does not permit me to cite Bauch’s vicious remarks about Einstein; he could not have guided Carnap through the discussion of physical space in “Der Raum.”I return to Richardson’s reconstruction. According to the neo-Kantian, objective knowledge is found in mathematical physics, not in uninformed experience. He acknowledges that theoretical physics relies on conventions, and that these conventions go beyond mere experience to provide the mathematical structure necessary for objectivity (131). The responses to the problem this poses... (shrink)

König, D. [1926. ‘Sur les correspondances multivoques des ensembles’, Fundamenta Mathematica, 8, 114–34] includes a result subsequently called König's Infinity Lemma. Konig, D. [1927. ‘Über eine Schlussweise aus dem Endlichen ins Unendliche’, Acta Litterarum ac Scientiarum, Szeged, 3, 121–30] includes a graph theoretic formulation: an infinite, locally finite and connected graph includes an infinite path. Contemporary applications of the infinity lemma in logic frequently refer to a consequence of the infinity lemma: an infinite, locally finite tree with a root has (...) a infinite branch. This tree lemma can be traced to [Beth, E. W. 1955. ‘Semantic entailment and formal derivability’, Mededelingen der Kon. Ned. Akad. v. Wet., new series 18, 13, 309–42]. It is argued that Beth independently discovered the tree lemma in the early 1950s and that it was later recognized among logicians that Beth's result was a consequence of the infinity lemma. The equivalence of these lemmas is an easy consequence of a well known result in graph theory: every connected, locally finite graph has among its partial subgraphs a spanning tree. (shrink)

The article presents the conceptual groundwork for an understanding of the essentially improvisational dimension of human rationality. It aims to clarify how we should think about important concepts pertinent to central aspects of human practices, namely, the concepts of improvisation, normativity, habit, and freedom. In order to understand the sense in which human practices are essentially improvisational, it is first necessary to criticize misconceptions about improvisation as lack of preparation and creatio ex nihilo. Second, it is necessary to solve the (...) theoretical problems that derive from misunderstandings concerning the notions of normativity, habit, and freedom – misunderstandings that revolve around the idea that rationality is a form that is developed out of itself and thus works in a way similar to algorithms. One can only make sense of normativity, habit, and freedom if one understands that they all involve conflictual relationships with the world and with others, which in turn enables one to adequately take into account their constitutive connection to improvisation, properly understood. In outlining these conceptual connections, we want to prepare the foundations for an explanation of rational practices as improvisational practices. The article concludes by stating that human rational life is improvisatory because the conditions of human practice arise out of practice itself. (shrink)

Agency is the human capacity to freely choose one’s thoughts, motivations and actions without undue internal or external influences; it is distinguished from decisional capacity. Four well-known conditions that can deeply affect agency are depression, demoralization, existential distress, and family dysfunction. The study reviews how they may diminish agency in persons whose circumstances may lead them to consider or request euthanasia or assisted suicide. Since agency has been a relatively neglected dimension of autonomous choice at the end of life, it (...) is argued that to respect the autonomy of individuals, it is essential to establish their agency. (shrink)