In the year 1308, Cardinal Giacomo Colonna was a tremendously busy man. He had returned to Rome only a few years earlier in the aftermath of a devastating papal war waged against his family by Boniface VIII. The papal court had been absent from the city for years, leaving an administrative void in Rome as it established itself first in Poitiers, then in Avignon from 1308 under the leadership of the Gascon pope Clement V. In 1306 Giacomo was fully reinstated (...) to the cardinalate, and set about rebuilding his family's fortunes and reputation, as well as a number of the city's churches. He commissioned a new mosaic facade for the basilica of Santa Maria Maggiore, and in 1308 he oversaw repairs... (shrink)

Striking similarities across ape gestural repertoires suggest shared phylogenetic origins that likely provided a foundation for the emergence of language. We pilot a novel approach for exploring possible semantic universals across human and nonhuman ape species. In a forced‐choice task, n = 300 participants watched 10 chimpanzee gesture forms performed by a human and chose from responses that paralleled inferred meanings for chimpanzee gestures. Participants agreed on a single meaning for nine gesture forms; in six of these the agreed form‐meaning (...) pair response(s) matched those established for chimpanzees. Such shared understanding suggests apes' (including humans') gesturing shares deep evolutionary origins. (shrink)

Following recent developments in the literature on axiomatic theories of truth, we investigate an alternative to the widespread habit of formalizing the syntax of the object-language into the object-language itself. We first argue for the proposed revision, elaborating philosophical evidences in favor of it. Secondly, we present a general framework for axiomatic theories of truth with theories of syntax. Different choices of the object theory O will be considered. Moreover, some strengthenings of these theories will be introduced: we will consider (...) extending the theories by the addition of coding axioms or by extending the schemas of O, if present, to the entire vocabulary of our theory of truth. Finally, we touch on the philosophical consequences that the theories described can have on the debate about the metaphysical status of the truth predicate and on the formalization of our informal metatheoretic reasoning. (shrink)

This paper compares the roles classical and intuitionistic logic play in restricting the free use of truth principles in arithmetic. We consider fifteen of the most commonly used axiomatic principles of truth and classify every subset of them as either consistent or inconsistent over a weak purely intuitionistic theory of truth.

This paper explores the interface between principles of self-applicable truth and classical logic. To this end, the proof-theoretic strength of a number of axiomatic theories of truth over intuitionistic logic is determined. The theories considered correspond to the maximal consistent collections of fifteen truth-theoretic principles as isolated in Leigh and Rathjen.

In this article we present a number of axiomatic theories of truth which are conservative extensions of arithmetic. We isolate a set of ten natural principles of truth and prove that every consistent permutation of them forms a theory conservative over Peano arithmetic.

In lieu of an abstract, here is a brief excerpt of the content:Reifying Relevance in Mild Cognitive Impairment:An Appeal for Care and CautionJanice E. Graham (bio) and Karen Ritchie (bio)KeywordsAlzheimer’s disease, construction, dementia, market forces, mild cognitive impairmentWe thank the reviewers for their thoughtful comments that probe shadowy areas in our argument, and we welcome this opportunity to elucidate our position. First, we are not repudiating the natural and social facts of pathologic brain degeneration and the physical and cognitive (...) impairments that manifest in people affected by dementia disorders. We are, however, questioning the epistemology, politics, and persistence by some to harden the construct of mild cognitive impairment (MCI) prematurely as a "natural" precursor to dementia. We suggested insufficiencies in viewing MCI as prodromal to Alzheimer's disease (AD; Graham and Ritchie 2006, 36), and pointed to evidence for the prognostic irrelevance of some MCI subcategories (35). The commentators have read our manuscript as suggesting that AD and MCI are different kinds, and that a diagnosis of AD is more "real" than that of MCI. But AD is also fraught with classification issues, as we describe in the section of our paper that deals with consensus committees, published practice guidelines, and the determination of treatment efficacy. Like MCI, AD is a heterogeneous condition, but unlike MCI, AD is a constructed practical kind that does some "work" beyond essentialist (neural degeneration, brain atrophy) claims. Its criteria identify people with well-defined dementia symptoms and multiple cognitive and functional impairments who are in need of, and benefit from, support. Even with these criteria, however, there have been great attempts to achieve definitional accuracy in dementia diagnoses. Practical refinements to the differential diagnosis of dementia based on solid research evidence have made way for more specific recognitions of vascular dementias, dementia of the Lewy body type, and other subtypes beyond AD. So AD too has been subject to more careful, more cautious operationalization in recent years, with research supporting multiple factors and the comorbidity of several types (kinds) of dementia in any one individual.Our paper takes up concerns that are not resolved for dementia and suggests that the nascent category of MCI is still so insufficiently defined as to be ambiguous, and as such, is in danger of identifying individuals with what will be, and has [End Page 57] already been, linked to a debilitating and deeply stigmatizing and fatal disorder (AD). We are not contesting the reality that some people begin to display early signs of cognitive loss, nor are we suggesting that symptoms be ignored; as researchers, we stand behind the careful tracking of symptoms and signs in patients and research participants as an essential clinical and research practice. In a era where the public has been made wary of the potentially fatal effects of new treatments whose more careful scrutiny in specific populations would have saved lives (e.g., Fontanarosa, Rennie, and DeAngelis 2004; Psaty and Furberg 2005), and made all the more popular by what Kramer coined "diagnostic bracket creep" (1993, 15), we are questioning the drivers and value of a premature diagnostic classification whose definitional accuracy is neither sufficient nor effective for specific identification of individuals.That matters of fact are constructed does not take away from their natural fact. Some people have subjective reports or show objective evidence of cognitive decline while having preserved activities of daily living—the construction of this evidence indicates they are not normal and they are not demented. Based on such evidence, where then does the balance of probability for MCI lie? A multidisciplinary international group of experts gathered in Stockholm in 2003 to discuss MCI concepts (Winblad et al. 2004). They acknowledged that the heterogeneous etiology of MCI contributes to "some confusion concerning the specific boundaries of the condition", stating that this "not normal, not demented" condition is nonetheless "useful both clinically and as a research entity" (p. 241). Importantly, they concluded that MCI needs "better definition" (p. 246). It was at this stage that we first wrote our manuscript, and in the subsequent two years we have eagerly awaited new studies, and the recognition of flexible, practical subtypes to evolve.We state "that MCI cannot be considered to be a separate clinical entity" (Graham and... (shrink)

Are we paying enough attention? At least since the nineteenth century, critics have alleged a widespread and profound failure of attentiveness—to others, to ourselves, to the world around us, to what is truly worthy of focus. Why is there such great anxiety over attention? What is at stake in understanding attention and the challenges it faces? This book investigates attention from a range of disciplinary perspectives, including philosophy, history, anthropology, art history, and comparative literature. Each chapter begins with a concrete (...) scene whose protagonists are trying—and often failing—to attend. Authors examine key moments in the history of the study of attention; pose attention as a philosophical problem; explore the links between attention, culture, and technology; and consider the significance of attention for conceptualizations of human subjectivity. Readers encounter nineteenth-century experiments in boredom, ornithologists conveying sound through field notations, wearable attention-enhancing prosthetics, students using online learning platforms, and inquiries into attention as a cognitive state and moral virtue. Amid mounting concern about digital mediation of experience, the rise of “surveillance capitalism,” and the commodification of attention, Scenes of Attention deepens the thinking that is needed to protect the freedom of attention and the forms of life that make it possible. (shrink)

Even though disquotationalism is not correct as it is usually formulated, a deep insight lies behind it. Specifically, it can be argued that, modulo implicit commitment to reflection principles, all there is to the notion of truth is given by a simple, natural collection of truth-biconditionals.