Es wird gezeigt, daß in der Skizze zum Beweis des 2. Satzes von Gödel dieser eine stillschweigende Voraussetzung macht, die im Widerspruch zu den üblichen Forderungen nach Eindeutigkeit der benutzten Terme steht: Eine und dieselbe Gödelzahl g repräsentiert nämlich einmal den Ausdruck g1: "ein im System k unentscheidbarer Satz" und das andere Mal den Ausdruck g2: "g1 ist in k nicht beweisbar". Beachtet man aber diesen Unterschied, so ist der Widerspruch nicht herleitbar, auf dem der Gödelsche Beweis basiert.

This book, the author tells us, is "about some of the ways in which the techniques of modal logic may be used to study concepts of proof theory first studied in Gödel's famous paper on the incompleteness of arithmetic." Those who, with Quine and others, think that modal logic was conceived in sin, may well doubt that its techniques will throw anything but more Dunkel on proof theory. The author attempts to show otherwise and construes "☐A", where " ☐" is (...) the symbol for modal necessity, in terms of Gödel's arithmetical predicate "Bew" for provability. The formulae in which this latter occurs are perfectly well-defined, we are told, and thus no sin can be attached to this identification. But are such formulae perfectly well-defined? Syntactically, yes; but semantically? It is usually assumed that they are, but the full array of semantical principles needed to carry out Gödel's arithmetization seems never to have been given in full detail. And it is just possible that a fallacy of ambiguity lies concealed in such formulae, as F. Rivetti-Barbò has contended and Lesniewski appears to have hinted at. In any case, not all is happy philosophically and to everyone's satisfaction, at the very foundation of Gödel's method. Although the author purports to have proved here a number of seemingly interesting and sophisticated theorems, the real semantical issues involved seem to have been skirted.--R.M.M. (shrink)

The aim of this article is to investigate around the life in the contemporary society, characterized by risks and catastrophes. What does mean to live fearing that in any moment a catastrophe could happen (a tsunami, an earthquake, a nuclear explosion)? Despite of the failure of science and public institutions in the prevention of the catastrophes, the question is the following: Can we use the catastrophe as a paradigm of the contemporary uncertain life, trying to mean it as a theme (...) of mediation? Can we use the catastrophe for developing a philosophy of the recognition of the other who has been involved in the same tragedy? (shrink)

The Developmental Systems Theory (DST) presented by its proponents as a challenging approach in biology is aimed at transforming the workings of the life sciences from both a theoretical and experimental point of view (see, in particular, Oyama [1985] 2000; Oyama et al. 2001). Even though some may have the impression that the enthusiasm surrounding DST has faded in very recent years, some of the key concepts, ideas, and visions of DST have in fact pervaded biology and philosophy of biology. (...) It seems crucial to us both to establish which of these ideas are truly specific to DST, and to shift through these ideas in order to determine the criticisms they have drawn, or may draw (e.g., Sterelny et al. 1996; Griesemer 2000; Sterelny 2000; Kitcher 2001; Keller 2005; Waters 2007). (shrink)

In this paper we investigate ways to comply with justice in a liberal democracy. In order to do that, we sketch Rawls’s account of moral-consensus stability and discuss the alternative idea of stability reached through a modus vivendi. We defend modus vivendi as a way to achieve stability backed by a variety of reasons and even by ‘non-reasons’. By ‘non-reasons’ we mean alternative sources of motivation for compliance as a precondition of a stable coexistence. We focus on such sources, which (...) differ from reasons and beliefs, that are practices, shared values, and value experiences, in light of both a theoretical-political and a qualitative social-ontological perspective. We argue that individuals who experience the same values become collectives and even stable ones: the sharing of values creates social unity and makes collectives solid and resistant to individualistically centrifugal tendencies. (shrink)

This paper aims to develop a better understanding of the influence of the social environment in which entrepreneurs reside on the success of the crowdfunding projects they propose. Specifically, this study investigates on the importance of local religiosity on the propensity to support cross-regional crowdfunding projects. We theoretically discuss and empirically document, using a dataset of 5841 contributions on three Swiss reward-based and donation-based platforms, that local religiosity affects cross-regional resource flows by creating social interactions and enhancing trust. Furthermore, we (...) find that cross-regional resource flows are more likely between regions sharing the same primary religion—whether Protestant or Catholic. (shrink)

[Esotericism. One-day Workshop about the Annale n. 25 of the Storia d'Italia Einaudi]. This section contains the proceedings of the one-day workshop on the book Esoterismo, published as the Annale n. 25 in the collection "History of Italy" by Einaudi. The workshop was organized by ISPF on the October 26, 2011 to promote the discussion on the significance of Western esotericist traditions in Italian history. S. Caianiello’s introduction highlights some major concepts and goals of the recent field of studies about (...) Western Esotericism, and some open problems about its definition. M. Cambi comments on the substantial transformation of esotericist themes in Giordano Bruno’s natural philosophy, whereby the sources of the magician’s power are completely enclosed in the realm of nature, thus rejecting any transcendent foundation. M. Conforti focuses on "the function and opportunities" offered by the Western Esotericism approach "to the genesis and development of early modern science" and comments from this perspective on different contributions in the volume, emphasizing however the importance of largely pre-existing traditions in the history of science and medicine which have long challenged the wiggish separation between science and magic, rational and irrational thought. L. Simonutti provides new material to the general theme, with a historical-philosophical analysis of the esotericist elements in Picart’s iconography of the 18th Century edition of "Cymbalum mundi". F. Sofia discusses the effective role of esotericist traditions in the attempts to establish a "civil religion" in Italy from Risorgimento to Fascism, a history in which, she argues, it is difficult to establish "how much esotericism was an intentional choice or the product of an unavoidable nicodemism". C. Castellano reviews the contributions dedicated to the "political teology" of Italian Risorgimento, dealing in depth with the complex relationship between Freemasonry and Carbonari in Italy – in her view, more of a cultural than of a strictly political connection – and highlights the relevance of the anticurial component in their esotericist inspiration. G.M. Cazzaniga, author and editor of the Annale, beyond reacting to the different stimuli offered by the discussion, provides a brief history of Western Esotericism studies in Europe and of the reasons of their difficult reception in Italy. (shrink)

In this article, we argue that Paul Ricœur’s hermeneutics of spaces and the aesthetics vision of the landscape as a performance, based on the contemporary theories of Erika Fischer-Lichte, can integrate each other through the mediation of Mikel Dufrenne’s phenomenology of the a priori. In particular, we will show how the representations and the hermeneutics of a landscape as a peculiar “text” are essentially connected with its the pre-reflective experience, which, being made possible by the activation of precise material – (...) and therefore historical and cultural – a priori, can be thus translated into images and words. By intertwining hermeneutics, phenomenology, and performative esthetics we will provide with a non-reductive philosophical description of a landscape, i.e., a definition that does not neglect the aspects of it suggested by its linguistic pre-comprehension and artistic representations. (shrink)

The paper describes a highly specific Italian action research experience, connected with the trade unions, going through different phases from the 1970s to the present day. The journey is not only a journey through time but also through different approaches. It ranges from the initial experience focusing on health and safety problems at the workplace involving the workers as co-designers of new working environments to today’s search conference experience. For each phase there is a full description and comment on the (...) methods utilised by the research group. The main methodological shift described in the paper is the one from discussion groups, based on Bion’s thinking, to the search conferences, based on Emery’s line of thinking. Both are oriented to the subjectivity of the people involved, although in the discussion group experience the research groups considered the subjectivity of the people involved as the subject of the observation. The researchers’ aim of was to acquire a reliable knowledge of what was at stake and to pass it on to the union that organised the research in order to promote actions. Hence, the action-research circuit is based upon different actors and the process is integrated only from the point of view of the union. In the search conference experience the researchers are involved in a co-design process and so the action-research circuit is really integrated from the researchers’ perspective; there are, of course, multiple perspectives in this case and this opens up epistemological problems that are not discussed in the paper. (shrink)

We consider the evolutionary plausibility of Osiurak and Reynaud's arguments. We argue that technical reasoning is not quite the magic bullet that O&R assume, and instead propose a co-evolutionary account of the interplay between technical reasoning and social learning, with language emerging as a vital issue neglected in O&R's account.

The exceptional pandemic due to the 2019 coronavirus disease (COVID-19) has obliged all Italians to stay at home. In the literature, there are evidences that traumatic global events, such as natural catastrophes and pandemic, have negative effects on the physical and psychological health of the population. We carried out a survey to analyze the physical and psychological conditions of Italians during the pandemic. Due to the severe limitations in moving during the phase one lockdown, the survey was administered by internet. (...) Results show that Italians followed the provisions established by the Italian government to avoid contamination, but 43% of them declared to have suffered from physical symptoms, in particular migraine, sleep disorders, persistent exhaustion, and difficulty of concentration. They have great fear to be contaminated or that relatives or friends can be contaminated, and they actively take actions to avoid contamination. Participants declared that they had suffered a lot of inconveniences due to restrictions in their movements, and that their life habits were strongly changed. They spent their time at home in different activities, but their psychological well-being was strongly impaired by the lockdown. The level of anxiety tripled, in relation to the prepandemic period, and 30% of males and 41% of females declared to have severe levels of depression. Participants with high levels of optimism and hopefulness show a stronger resilience against anxiety and depression. In addition, there is a negative correlation between anxiety and depression and the five factors of personality. These results show that psychological diseases must not be neglected, and that people in lockdown do need support for their psychological health, also with the help of internet and communication technologies. (shrink)

A cavallo tra i due concili di Costanza e Basilea, che hanno fortemente influito sul giudizio della Chiesa in relazione alle donne visionarie, si staglia la figura di Francesca Bussa dei Ponziani. Le visioni politiche di Francesca rappresentano un fulgido esempio di come i modelli brigidini e cateriniani siano stati ripresi e rimodellati su un nuovo, mutato contesto storico. La sua consolidata autorità le consentì di ammonire a più riprese papa Eugenio IV riguardo alla sua partecipazione al concilio (...) di Basilea, intervenendo attivamente nello scenario religioso e politico romano. (shrink)

In this paper we present a sequent calculus for the modal propositional logic GL (the logic of provability) obtained by means of the tree-hypersequent method, a method in which the metalinguistic strength of hypersequents is improved, so that we can simulate trees shapes. We prove that this sequent calculus is sound and complete with respect to the Hilbert-style system GL, that it is contraction free and cut free and that its logical and modal rules are invertible. No explicit semantic element (...) is used in the sequent calculus and all the results are proved in a purely syntactic way. (shrink)

Francesca Ervas 7 Journal of Language & Translation 9-2September 2008, 7-29 Davidson’s Notions of TranslationEquivalence Francesca Ervas Università Roma Tre Abstract The paper analyses the relationship of semantic equivalence as described by Donald Davidson in his theory of meaning, showing its limits above all in respect to language use in the contextual situation.The notion of equivalence used by the “first” Davidson does not successfully explain why some biconditionals are simply true and why others, besides being true, offer the (...) real translation of the source sentence. The paper argues that the main limits of the Davidsonian proposal, which lie in the very attempt to apply Tarskian theory of truth to natural languages, are partially overcome later by Davidson himself. Above all in his paper A NiceDerangement of Epitaphs (1986), Davidson rejects the very idea of an “invariance of meaning” and proposes a “second” notion of equivalence, described as the research of momentary and always changing points of convergence of interpreter and speaker,depending on contextual information. This convergence is possible because of a “deeper equivalence,” a common cognitive apparatus that allows communication to take place. At any rate, as the paper aims to demonstrate, this solution seems to simply shift the problem on to another level of explanation. Once this level of “deeper equivalence” is reached, there is too no explanation of exactly how a translator can understand contextual implications in order to graspfunctional equivalence. (shrink)

Typical theory of mind tasks assess children’s ability to attribute a false belief in order to predict or explain an action. According to these standard tasks, young children do not represent the independent (mistaken) beliefs of others until the fourth year—yet long before this, children are able to track speakers’ intentions in order to learn new words. Might communication be a privileged domain for theory of mind? In the present study we explored pre‐schoolers’ ability to track a false belief in (...) order to acquire a novel word. A puppet labeled a novel object in a false belief condition (contents of a box had been switched without her knowledge), and a true belief condition (contents switched in her presence). Children were significantly better at tracking the puppet’s false belief in the word‐learning task than in a standard false belief test. Possible reasons for this advantage are discussed, and the suggestion made that representation of mental states may emerge precociously in the service of communication. (shrink)

Sociopolitical attitudes are often the root cause of conflicts between individuals, groups, and even nations, but little is known about the origin of individual differences in sociopolitical orientation. We test a combination of economic and evolutionary ideas about the degree to which the mating market, sex, age, and income affect sociopolitical orientation. We collected data online through Amazon’s Mechanical Turk from 1108 US participants who were between 18 and 60, fluent in English, and single. While ostensibly testing a new online (...) dating website, participants created an online dating profile and described people they would like to date. We manipulated the participants’ popularity in the mating market and the size of the market and then measured participants’ sociopolitical attitudes. The sociopolitical attitudes were reduced to five dimensions via Principal Components Analysis. Both manipulations affected attitudes toward wealth redistribution but were largely not significant predictors of the other dimensions. Men reported more unrestricted sociosexual attitudes, and more support for benevolent sexism and traditional family values, than women did, and women supported wealth redistribution more than men did. There was no sex difference in accepting nonconforming behaviors. Younger people and people with lower incomes were more liberal than older people and people with higher incomes, respectively, regardless of sex. Overall, effects were largely not interactive, suggesting that individual differences in sociopolitical orientation may reflect strategic self-interest and be more straightforward than previously predicted. (shrink)

An inquiry drawing on the presence of Hellenistic philosophy in Philo provides a better knowledge of the diffusion of Hellenistic philosophy since the late ...