This work is essentially an attempt to refute the theory of legal positivism, and at the same time to advance the author's own somewhat unique formulation of natural law theory. Though Juha-Pekka Rentto makes a comprehensive and almost eclectic use of authors as diverse as, for example, Thomas Aquinas and Lawrence Kohlberg, he seems determined to approach legal philosophy from the natural law tradition, while adding a few notable exceptions of his own. In his opinion, natural law theories which (...) attempt to build a system on some one first principle ignore the practical importance of natural law. In fact, he will go on to say later that "rule-like principles are otiose in that they either are against the appropriate reasons for action, or they add nothing to them". His own via media involves an interesting twist on Finnis's theory of practical reason. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:ULTIMATE END AND COMMON GOOD GREGORY FROELICH University of Alaska Anchorage, Alaska IN HUMAN ACTION what is last in execution is first in intention. For just this reason Thomas Aquinas begins the secunda jmrs of the Summa Theologiae with a consideration of man's ultimate end. It is the end and the end alone that renders intelligible all those choices and activities that human life comprises. " Finis (...) enim. (shrink)

Some philosophers have offered structural representations as an alternative to indicator-based representations. Motivating these philosophers is the belief that an indication-based analysis of representation exhibits two fatal inadequacies from which structural representations are spared: such an analysis cannot account for the causal role of representational content and cannot explain how representational content can be made determinate. In fact, we argue, indicator and structural representations are on a par with respect to these two problems. This should not be surprising, we contend, (...) given that the distinction between indicator and structural representations is better conceived as one involving degree rather than kind. (shrink)

This work is essentially a history of the scholastic conception of dialectica from Garlandus Compotista to William Ockham, with an eye to rendering intelligible the puzzling nature of late medieval treatises on logical obligations. Such treatises seem to countenance violations of fundamental and indisputable logical rules, for example, that a disjunction is false if both of its disjuncts are false. In large part to explain this apparent surd development in medieval logic, Eleonore Stump has collected into a single volume twelve (...) separately published essays. Together they form an interesting and convincing argument. (shrink)

The concept of population is central to ecology, yet it has received little attention from philosophers of ecology. Furthermore, the work that has been done often recycles ideas that have been developed for evolutionary biology. We argue that ecological populations and evolutionary populations, though intimately related, are distinct, and that the distinction matters to practicing ecologists. We offer a definition of ecological population in terms of demographic independence, where changes in abundance are a function of birth and death processes alone. (...) However, demographic independence is insufficient on its own so we supplement it with the idea of shared habitat. An ecological population is a group of organisms of the same species in a habitat that manifests DI. Given the importance of metapopulation dynamics to modern ecology, an account of ecological population must apply to this domain as well. Thus, we extend our definition of ecological population to the metapopulation. To facilitate the extension, we introduce the metahabitat—a collection of spatially segregated habitat patches shared by a single DI population. This enables us to diagnose some unhelpful trends in the metapopulation literature and emphasize the importance of habitat dynamics in pursuit of the goals of theoretical ecology and conservation biology. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:BOOK REVIEWS Summa Theologiae: A Concise Translation. By ST. THOMAS AQUINAS. Edited by Timothy McDermott. Westminster, Md.: Christian Classics, 1989. Pp. lviii + 651. $78.00 (cloth). There are probably just a few of us familiar with Dominico Gravina's Compendium rythmicum, an ancient little book that summarizes the entire Summa theologiae in the same Latin meter as " Tantum ergo." But doubtless many are familiar with the experience Gravina must (...) have had that led him to write such a book. It is the same experience that has led to a remarkable number of synopses, compendia, introductory translations, selections, and most recently to Timothy McDermott's Concise Translation. These attempt to present the doctrine of the Summa without the massive weight of syllogism and definition, unfamiliar style, and innumerable (sometimes obscure) references, which make it so daunting a task for the unprepared reader. For example, Paul Glenn in Tour of the Summa excises every objection and response and summarizes only the bodies of the articles. Walter Farrell in Companion to the Summa does not attempt trans· lation hut instead rewords and restructures the Summa in the typically modern paragraph style. However, these works have their shortcomings. By neglecting the doctrine contained in the responses and by failing to provide any transition from the summary of one article to another, the Tour considerably weakens the ordo disciplinae which, as Thomas argues in his prologue, is essential to this work. In this regard, even Anton Pegis's Introduction to St. Thomas Aquinas tends to stumble along, despite being a close translation. The Companion, on the other hand, does preserve a continuity of thought, but in the final account it is Thomas's thought only secondhand. The Concise Translation, however, masterfully combines the strengths of these hooks, while avoiding their weaknesses. For it achieves concision in a manner that respects the order and development of the Summa, " not by selecting out parts, hut by compressing and distilling the whole" (p. xiii). Yet at the same time it is a translation. It is essentially Thomas in a similar form, approximately one sixth the size. McDermott admits that he has made certain omissions (for example, some of the remarkably lengthy discussions of the ceremonial and judicial precepts of the Old Law), but in these cases he retains enough to give the reader a sense of Thomas's treatment. There are of course 7~7 728 BOOK REVIEWS many passages which would he impossible to make more concise (for example, the proofs for God's existence), except by adapting them to a modern format. Here McDermott's use of modern punctuation and sentence structure tends to smooth out the stacatto (though extremely precise) structure of Thomas's syntax. At a glance, the Concise Translation appears as a thoroughly modern text, with paragraphs, titled sections, chapters, bibliography, and indices. Not surprisingly, it is divided into three main parts: God, Journeying to God, and The Road to God. Each of these is divided into chapters (numbered continuously through the parts) that correspond more or less to the so-called Treatises. For example, Part One, Chapter Five, entitled "Man's Place in Creation," corresponds exactly to the Treatise on Man. These chapters, in turn, are divided into sections which correspond closely to the major divisions that Thomas outlines in his introductions at the heads of various questions. The ohjec· tion/response format, however has completely disappeared, and the only evidence of the question/article format appears at the heads of certain paragraphs and in the margins. But this does not mean that the ohj ections and responses have altogether vanished. McDermott's careful eye has picked out many of the important distinctions they con· tain and has skillfully incorporated them into complete and unified paragraphs. This holds true also with many instances of the sed contra. Finally, in streamlining his text, he has done away with most references, keeping just enough to indicate on whom Thomas primarily relied. This regrettably leaves the reader unaware of Thomas's extensive use of his predecessors. But all in all, McDermott's format makes the text eminently readable. The translation itself is remarkable for its fidelity to the original and ease of comprehension. It almost... (shrink)

For two principal reasons, this is a welcome translation of Thomas Aquinas's treatment of faith. First, it is one of the very few English translations of Aquinas that has heeded Aquinas's own sage advice on translating--preserve the sense of the original but adapt its style to suit the language into which it is being translated. Most anglophone translators make Aquinas appear as if he concocted a highly technical language to impress his brother Dominicans. Jordan, on the other hand, rightly understands (...) that while Aquinas uses words and phrases in very precise ways, he never does so at the expense of their common, ordinary meanings. In fact, Aquinas's precise language is unintelligible without its being seen as rooted in ordinary language and naturally developed through the philosophical and theological traditions he inherited. Thus, by avoiding the obscure Latinate English that plagues other translations and, instead, rendering Thomas into felicitous English with due attention to the sources, Jordan's translation well reflects the accessibility of the original. (shrink)

Gregory T. Doolan provides here the first detailed consideration of the divine ideas as causal principles. He examines Thomas Aquinas's philosophical doctrine of the divine ideas and convincingly argues that it is an essential element of his metaphysics. According to Thomas, the ideas in the mind of God are not only principles of his knowledge, but they are productive principles as well. In this role, God's ideas act as exemplars for things that he creates. As Doolan shows, this theory (...) of exemplarism is an integral part of Thomas's account of the existence and order of the created universe. It also accounts in part for the freedom of God's creative act. The volume begins with an introduction to Thomas's doctrine of exemplarism and then addresses his arguments for the existence of exemplar ideas within the mind of God. Having established the existence of divine ideas, Doolan considers how Thomas reconciles their multiplicity with God's simplicity. The work identifies the various things for which Thomas posits divine ideas. As Doolan is careful to show, Thomas does not consider all of these ideas to be exemplars because not all of them act as causal principles. After identifying the ideas that do act in this way, Doolan considers how such exemplars can be causes of natural things without compromising the causality of natural agents. The volume culminates with a consideration of the role that the divine ideas play within the structure of Thomas's theory of participation. ABOUT THE AUTHOR: Gregory T. Doolan, assistant professor of philosophy at The Catholic University of America, is a contributor to Wisdom's Apprentice: Thomistic Essays in Honor of Lawrence Dewan, O.P., and Reassessing the Liberal State: Reading Maritain's Man and the State. This is his first book. (shrink)

Pancreatitis is a complex, progressively destructive inflammatory disorder. Alcohol was long thought to be the primary causative agent, but genetic contributions have been of interest since the discovery that rare PRSS1, CFTR and SPINK1 variants were associated with pancreatitis risk. We now report two associations at genome-wide significance identified and replicated at PRSS1-PRSS2 and X-linked CLDN2 through a two-stage genome-wide study. The PRSS1 variant likely affects disease susceptibility by altering expression of the primary trypsinogen gene. The CLDN2 risk allele is (...) associated with atypical localization of claudin-2 in pancreatic acinar cells. The homozygous CLDN2 genotype confers the greatest risk, and its alleles interact with alcohol consumption to amplify risk. These results could partially explain the high frequency of alcohol-related pancreatitis in men. © 2012 Nature America, Inc. All rights reserved. (shrink)

DBS Think Tank IX was held on August 25–27, 2021 in Orlando FL with US based participants largely in person and overseas participants joining by video conferencing technology. The DBS Think Tank was founded in 2012 and provides an open platform where clinicians, engineers and researchers can freely discuss current and emerging deep brain stimulation technologies as well as the logistical and ethical issues facing the field. The consensus among the DBS Think Tank IX speakers was that DBS expanded in (...) its scope and has been applied to multiple brain disorders in an effort to modulate neural circuitry. After collectively sharing our experiences, it was estimated that globally more than 230,000 DBS devices have been implanted for neurological and neuropsychiatric disorders. As such, this year’s meeting was focused on advances in the following areas: neuromodulation in Europe, Asia and Australia; cutting-edge technologies, neuroethics, interventional psychiatry, adaptive DBS, neuromodulation for pain, network neuromodulation for epilepsy and neuromodulation for traumatic brain injury. (shrink)

One of the early steps in the process of putting together an issue of the Hastings Center Report is ticking through each column we plan to run in that issue and making sure that we have somebody lined up to write it and—if we already have somebody lined up to write it—that the person hasn't forgotten. But as this issue approached, one of those we had all nicely lined up contacted us first, to say that he was retiring from this (...) particular gig.For many years, we have had a wonderful rotating line-up for At Law: Rebecca Dresser, of Washington University of St. Louis; Lawrence O. Gostin, of George Washington University; and Carl Schneider, of the University of Michigan, have taken turns, each writing twice a year. .. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Rhetorical Landscapes in America: Variations on a Theme from Kenneth BurkeLawrence W. RosenfieldRhetorical Landscapes in America: Variations on a Theme from Kenneth Burke. Gregory Clark. Columbia: University of South Carolina Press, 2004. Pp. 181. $34.95, hardcover.Once again we are indebted to the University of South Carolina Press for a fine contribution from its Studies in Rhetoric/Communication series. Gregory Clark sets parallel aims: to apply Kenneth Burke's (...) critical vocabulary to cultural history, and to read American tourist sites and literature in the frame of Burke's notion of "identity" (147). Clark sees the American public landscape as "constituting in individual citizens a shared sense of common identity as members of a national public" (148). He claims that such shared experiences are as rhetorical as are more typical instances of public discourse. Thus American tourism has contributed to developing us into a national community.Clark supports his theme of rhetorical influence with six case studies: New York City, Shaker villages, Yellowstone National Park, the Grand Canyon, the Lincoln Highway, and the 1915 San Francisco Panama Exposition. While Burke's vocabulary offers a handy point of departure, the real news is in [End Page 172] Clark's discussion of the meaning and prominence of each of his six exemplars as cultural icons.This may be most evident (and endearing) as Clark recalls his own boyhood visits to Yellowstone, where he stood in the parking lot and was as captivated by the variety of license plates from across the country as by the hot springs and mudpots (69). This too was a celebration of nationhood. Equally fascinating is his consideration of the efforts of Stephan Mather, Mary Colter, and the Fred Harvey Company both to preserve national parklands and to develop a befitting "National Park Service Rustic" architectural style to enhance the natural landscape (this long before Disney's theme parks). Such typical excerpts almost cry out for Ken Burns or the History Channel to recreate the optimistic climate of a Romantic Post-Bellum civic culture depicted by Clark.The book becomes more tedious when its repeated invocation of Burkian terms tilts toward veneration. In his lifetime, Burke was unnerved by uncritical academic worship. He sought understanding, not deification. As he remarked, "They are an evangelical brood, bejeez. So... I [became] an observer at my own funeral."1 His wariness of academic enthusiasm is well taken. It does no disservice to Burke, for example, to recognize that his "identification" is a reworking of Vico's "ingenium" outfitted in creaky 1920s literary machinery.2 Shorn of some of the cumbersome Burkian baggage, the book's exemplars emerge as epideictic celebrations of the American tourist phenomenon and its part in shaping a national Romantic consciousness:And as rhetoric they traffic not in actions but in attitudes. People can encounter them without ever thinking of themselves as anything but spectators. Even in that role they are being educated... in matters of individual and collective identity.(148)Seen thus as reminders of our forebears' vision in pioneering the development of a national landscape trust, Clark's work edifies and opens us to the quiet excitement of meditative discovery. Clark guides us to monuments of cultural memory; his project is remarkably readable and a uniquely American enterprise.Lawrence W. RosenfieldUniversity of New HampshireNotes1. Letter to Malcolm Cowley, dated 11 August, 1955. Newberry Library Collection, Chicago.2. Cf. M. Mooney, Vico in the Tradition of Rhetoric (Princeton: Princeton UP, 1985), 151. [End Page 173]Copyright © 2006 The Pennsylvania State University... (shrink)

Since the late 1960s, philosophy for children has become a global, multi-disciplinary movement involving innovations in curriculum, pedagogy, educational theory, and teacher education; in moral, social and political philosophy; and in discourse and literary theory. And it has generated the new academic field of philosophy of childhood. Gareth B. Matthews (1929-2011) traced contemporary disrespect for children to Aristotle, for whom the child is essentially a pre-intellectual and pre-moral precursor to the fully realized human adult. Matthews Matthews dubbed this the “deficit (...) conception of childhood” and wrote extensive critiques of its perpetuation in Jean Piaget’s stage model of cognitive development and in Lawrence Kholberg’s stage model of moral development. He published the first book (1994) in the field of philosophy of childhood and wrote a column of reviews of philosophically-oriented children’s books. He argued that even academic philosophers can benefit from the freshness and directness of children’s thinking. For Matthew Lipman (1923-2010) and Ann Margaret Sharp (1942-2010), the child is only potentially a philosophical agent and grows into becoming such by means of a philosophical education. Lipman invented the literary genre of children’s philosophical fiction, which systematically reconstructs key philosophical issues and positions in language accessible by children, attempts to help children recognize philosophical dimensions of their own experience, and models philosophical dialogue. Lipman and Sharp developed a protocol for a “community of philosophical inquiry,” in which people with diverse experiences, ideas and concerns dialogue together around a shared philosophical question, with the aim of forming reasonable, meaningful judgments about the matter. The early success of philosophy for children was due in part to its coincidence with the critical thinking movement in education, in which Lipman was an important figure. Its emphasis on ethics has justified its use as a program of ethics, character, and even religious education. It has also been used for civics education, because of how it instantiates democratic deliberation and power-sharing. At the same time, philosophy for children has been criticized by religious and social conservatives, developmental psychologists, and philosophers. Today, the diversity of approaches, aims, materials, and grounding theories of philosophy for children signifies different understandings of philosophy, childhood and education, which have become “essentially contested concepts” within the movement. Philosophy for children is no longer unified by an identifiable theory, purpose, pedagogy, method or curriculum, but is now used to further a number of disparate educational agendas. Shaun Gallagher’s (1992) heuristic of four schools of hermeneutics is helpful in understanding these competing agendas. Conservative hermeneutics is the attempt to devise methods of interpretation that uncover and preserve truth or original meaning without distortion or bias. This is consonant with the use of philosophy for children to help young people appropriate the fundamental questions, ideas and skills of (Western) philosophy as a resource for understanding the world and managing their own experience, and with the understanding critical thinking as a way of avoiding prejudice and approaching truth. Critical hermeneutics approaches interpretation—including teaching and learning—as a method of liberating the interpreter from the racist, sexist, homophobic, capitalist, religiously fanatical, and other kinds of ideologies that commonly distort thinking, feeling and behavior. This is consonant with those who argue that the attributes of mutual criticism, inclusion, solidarity, self-regulation, and distributed power make the community of philosophical inquiry an ideal site for recognizing and overcoming ideology. Others find philosophy for children politically ineffectual due to the limited role of students and teachers in co-constructing the curriculum and its lack of an explicit component of political critique and action. Radical hermeneutics suggests that because every text is open to a plurality of meanings, the purpose of interpretation is not to artificially constrain that plurality but to play with the signs that constitute the text in order to achieve fresh insights. A radical hermeneutical strand is identifiable in the philosophy for children literature when scholars resist the idea that the aim of philosophical dialogue is to find consensus or to narrow down on the most reasonable conclusions. Moderate hermeneutics holds that the work of interpretation is the attempt to reach meaning or shared understanding in a process modeled on dialogue between the familiar and the strange. This is consonant with those who argue that philosophical traditions can still give meaning to (young) people’s lives, but that those traditions must be continually reinterpreted (including by children) in order to survive and flourish. Fifty-odd years since its inception, philosophy for children has deepened and diversified, both theoretically and as a field of practice. Perhaps the only point of agreement among (most) everyone in the movement is that children’s philosophical thinking, variously understood, is necessary for the realization of the intellectual, moral, and political agency the movement attributes to them. (shrink)

Deep brain stimulation is an experimental procedure for treatment-resistant depression. Some results show promise, but blinded trials had limited success. Ethical questions center on vulnerability: especially on whether depressed patients can weigh the risks and benefits effectively, whether depression causes “desperation,” and whether media portrayals create unrealistic hopes. We interviewed 24 psychiatric inpatients with treatment-resistant depression, qualitatively analyzing their comments. Most had minimal interest in deep brain stimulators. Some might consider them if their depression worsened, if alternatives were exhausted, or (...) if the evidence were stronger. Fears focused on the surgery, adverse effects, and the novelty of the device. Patients felt the depression interfered with their ability to weigh the risks and benefits. Patients seemed highly attuned to the risks, and were skeptical that the treatment would be effective. We conclude that ethical concerns about vulnerability remain, yet patients with treatment-resistant depression were thoughtful and cautious about trying a novel therapy. (shrink)

_Using Sartre_ is an introduction to the philosophy of Jean-Paul Sartre, but it is not an ordinary introduction. It both promotes Sartrean views and adopts a consistently analytical approach to him. Concentrating on the early philosophy, up to and including Sartre's masterwork _Being and Nothingness_, Gregory McCulloch clearly shows how much analytic philosophy misses when it neglects Sartre and the continental tradition in philosophy. In the classic spirit of analytic philosophy, this is a clear, simple and appealingly short exposition (...) of the early work of Sartre. Written specifically for beginners and non-specialists, this book is sure to spark new interest in Sartre and the existentialists, while making a significant contribution to the development of analytical philosophy of mind as well. (shrink)

For over a century before the establishment of English vernacular religious drama in cities of the north, there was a concerted effort by the papacy and episcopacy to eradicate or rechannel lay and clerical ludi that struck the establishment as more conducive to lechery, gluttony, and the mocking of sacred things than to worshipful remembrance of Christ's sacrifice or to meditation on man's lamentable condition. However, legislating a distinction between appropriate and inappropriate ludi was not easy. When Innocent III sought (...) to ban ludi theatrales among his clergy, his edict had to be glossed to assure religious communities that the pope did not oppose the decorous representation of certain topics — the story of Rachel, the Three Kings, and Herod. Since some of these ludi took place within monastic and other religious houses, not all the participants thought them objectionable, but English bishops, particularly Grosseteste and Grandisson, tried to put down raucous and inappropriate ludi — some of which they called miracula — whether they occurred within religious houses or among the laity. (shrink)

Should there be limits to the human alteration of the natural world? Through a study of debates about the environment, agricultural biotechnology, synthetic biology, and human enhancement, Gregory E. Kaebnick argues that such moral concerns about nature can be legitimate but are also complex, contestable, and politically limited.

Journal Name: SATS Issue: Ahead of print.

ABSTRACT McGowan’s notion of norm ‘enactment’ is the linchpin of her practical project, designed to provide an objective standard that circumvents the need to assess actual subjective uptake of discriminatory norms proposed by racist utterances in public spaces. However, the essential role of uptake to potential norm-imposing utterances—and responses like dismissing, countermanding, and ignoring—cannot be waved away. Contributions to conversations, and even more so to other social interactions, do not exert the normative compulsion upon participants that McGowan’s theory needs. People’s (...) words, even their ugly words, are not invariably norm ‘enactments’ that ‘constitute harm’—sometimes they are just words. (shrink)

This particular book has been published by The Ecumenical Theological Seminary, and is part of The Ecumenical Theological Seminary Library. In addition to our many other endeavors, primarily our ongoing goal to strive for, and achieve theological academic excellence, The Ecumenical Theological Seminary publishes literature pertaining to Theological subject matter, Spirituality, Meditation, Religion, Mysticism, et cetera.If you are an aspiring writer, or an author who would like to have your work published, or if you would like to submit a proposal, (...) or have any questions, or concerns, please contact The Ecumenical Theological Seminary. There is no cost to submit a manuscript to The Ecumenical Theological Seminary, and the copyright remains the property of the author. Certain manuscripts may be adequate to earn credit toward one of our degree programs. Therefore, please feel free to inquire about such.Publishing Your Book with The Ecumenical Theological Seminary; what we can offer:The Ecumenical Theological Seminary has been established since November 27th, 1994, and through the years has earned recognition, acknowledgement and respect throughout the world. The Ecumenical Theological Seminary has a team of dedicated and experienced editors who will review and provide feedback and guidance on your proposal. The Ecumenical Theological Seminary has a strong international presence, global distribution and marketing venues, and our sales channels reach deeply into markets within the United States, and throughout the world. Our editorial and marketing teams ensure that your book receives the right exposure.The Ecumenical Theological Seminary has a dedicated and knowledgeable sales team, with resources within the United States, and throughout the world; selling directly to bookstores, wholesalers, online retailers, library suppliers, colleges and universities, and churches. We offer quality design and production values, using the latest technology, our books are produced efficiently, quickly and attractively. We offer a global marketing plan, including direct mail, electronic and web marketing, advertising, review mailing, conference representation and adoption marketing for religious based books. The Ecumenical Theological Seminary has an extensive eBooks program, with new titles being added regularly, and we know how important it is to provide eBook content in a format that customers want.For further information, please feel free to contact The Ecumenical Theological Seminary.The Rev. Dr. Damian Stone, Founder, and President. (shrink)

Christophe Granger, enseignant chercheur à l’université Paris-Sarclay rattaché au Centre d’histoire sociale du xxe siècle (CNRS/Paris 1), est spécialiste d’histoire culturelle et notamment de l’histoire des usages sociaux du temps. Ses intérêts se sont progressivement étendus à l’histoire du corps, des activités de loisir et des sensibilités individuelles et collectives. Cette réédition en 2017 de La Saison des apparences (après une première parution en 2009 sous le titre Les Corps d’été. Na...

Given the central role played by space and time both in our ordinary experience and in our attempts to understand the world by means of scientific theory, it is no surprise that attempts to understand space and time form a central locus of the interaction of philosophy and the physical sciences.

This paper presents statistical default logic, an expansion of classical (i.e., Reiter) default logic that allows us to model common inference patterns found in standard inferential statistics, including hypothesis testing and the estimation of a populations mean, variance and proportions. The logic replaces classical defaults with ordered pairs consisting of a Reiter default in the first coordinate and a real number within the unit interval in the second coordinate. This real number represents an upper-bound limit on the probability of accepting (...) the consequent of an applied default and that consequent being false. A method for constructing extensions is then defined that preserves this upper bound on the probability of error under a (skeptical) non-monotonic consequence relation. (shrink)

Hilbert’s unpublished 1917 lectures on logic, analyzed here, are the beginning of modern metalogic. In them he proved the consistency and Post-completeness (maximal consistency) of propositional logic -results traditionally credited to Bernays (1918) and Post (1921). These lectures contain the first formal treatment of first-order logic and form the core of Hilbert’s famous 1928 book with Ackermann. What Bernays, influenced by those lectures, did in 1918 was to change the emphasis from the consistency and Post-completeness of a logic to its (...) soundness and completeness: a sentence is provable if and only if valid. By 1917, strongly influenced by PM, Hilbert accepted the theory of types and logicism -a surprising shift. But by 1922 he abandoned the axiom of reducibility and then drew back from logicism, returning to his 1905 approach of trying to prove the consistency of number theory syntactically. (shrink)