An erudite and witty collection of Umberto Eco's essays on mass culture from the 1960s through the 1980s, including major pieces which have not been translated into English before. The discussion is framed by opposing characterizations of current intellectuals as apocalyptic and opposed to all mass culture, or as integrated intellectuals, so much a part of mass culture as to be unaware of serving it. Organized in four main parts, "Mass Culture: Apocalypse Postponed," "Mass Media and the Limits of (...) Communication," "The Rise and Fall of Counter-Cultures," and "In Search of Italian Genius," Eco looks at a variety of topics and cultural productions, including the world of Charlie Brown, distinctions between highbrow and lowbrow, the future of literacy, Chinese comic strips, whether countercultures exist, Fellini's Ginger and Fred, and the Italian genius industry. (shrink)

This is the second of a series of papers that investigate fragments of quasi-Nelson logic (QNL) from an algebraic logic standpoint. QNL, recently introduced as a common generalization of intuitionistic and Nelson’s constructive logic with strong negation, is the axiomatic extension of the substructural logic |$FL_{ew}$| (full Lambek calculus with exchange and weakening) by the Nelson axiom. The algebraic counterpart of QNL (quasi-Nelson algebras) is a class of commutative integral residuated lattices (a.k.a. |$FL_{ew}$|-algebras) that includes both Heyting and Nelson algebras (...) and can be characterized algebraically in several alternative ways. The present paper focuses on the algebraic counterpart (a class we dub quasi-Nelson implication algebras, QNI-algebras) of the implication–negation fragment of QNL, corresponding to the connectives that witness the algebraizability of QNL. We recall the main known results on QNI-algebras and establish a number of new ones. Among these, we show that QNI-algebras form a congruence-distributive variety (Cor. 3.15) that enjoys equationally definable principal congruences and the strong congruence extension property (Prop. 3.16); we also characterize the subdirectly irreducible QNI-algebras in terms of the underlying poset structure (Thm. 4.23). Most of these results are obtained thanks to twist representations for QNI-algebras, which generalize the known ones for Nelson and quasi-Nelson algebras; we further introduce a Hilbert-style calculus that is algebraizable and has the variety of QNI-algebras as its equivalent algebraic semantics. (shrink)

Umberto Eco -- Stephen Jay Gould -- Jean-Claude Carrière -- Jean Delumeau.

In preference aggregation a set of individuals express preferences over a set of alternatives, and these preferences have to be aggregated into a collective preference. When preferences are represented as orders, aggregation procedures are called social welfare functions. Classical results in social choice theory state that it is impossible to aggregate the preferences of a set of individuals under different natural sets of axiomatic conditions. We define a first-order language for social welfare functions and we give a complete axiomatisation for (...) this class, without having the number of individuals or alternatives specified in the language. We are able to express classical axiomatic requirements in our first-order language, giving formal axioms for three classical theorems of preference aggregation by Arrow, by Sen, and by Kirman and Sondermann. We explore to what extent such theorems can be formally derived from our axiomatisations, obtaining positive results for Sen’s Theorem and the Kirman-Sondermann Theorem. For the case of Arrow’s Theorem, which does not apply in the case of infinite societies, we have to resort to fixing the number of individuals with an additional axiom. In the long run, we hope that our approach to formalisation can serve as the basis for a fully automated proof of classical and new theorems in social choice theory. (shrink)

"Eco wittily and enchantingly develops themes often touched on in his previous works, but he delves deeper into their complex nature... this collection can be read with pleasure by those unversed in semiotic theory." —Times Literary Supplement.

The world’s press may have lost interest in the ongoing enquiry into the deep‐rooted corruption in Italian business. But what exactly was going on, and what can be done to improve matters? The writers of this authoritative study are Faculty members of the prestigious Italian Business School, SDA Bocconi, Via F. Bocconi 8, 8‐20136 Milano, where Umberto Lago lectures in Strategy and Roberto Castoldi in Accounting. They both lecture on the Business Policy course at Bocconi University.

The world’s press may have lost interest in the ongoing enquiry into the deep‐rooted corruption in Italian business. But what exactly was going on, and what can be done to improve matters? The writers of this authoritative study are Faculty members of the prestigious Italian Business School, SDA Bocconi, Via F. Bocconi 8, 8‐20136 Milano, where Umberto Lago lectures in Strategy and Roberto Castoldi in Accounting. They both lecture on the Business Policy course at Bocconi University.

We look at extensions (i.e., stronger logics in the same language) of the Belnap–Dunn four-valued logic. We prove the existence of a countable chain of logics that extend the Belnap–Dunn and do not coincide with any of the known extensions (Kleene’s logics, Priest’s logic of paradox). We characterise the reduced algebraic models of these new logics and prove a completeness result for the first and last element of the chain stating that both logics are determined by a single finite logical (...) matrix. We show that the last logic of the chain is not finitely axiomatisable. (shrink)

BackgroundThis study aims to quantitatively and qualitatively evaluate the activities of a Bioethics Unit (BU) 5 years since its implementation (2016–2020). The BU is a research unit providing empirical research on ethical issues related to clinical practice, clinical ethics consultation, and ethical education for health care professionals (HPS).MethodsWe performed an explanatory, sequential, mixed-method, observational study, using the subsequent qualitative data to explain the initial quantitative findings. Quantitative data were collected from an internal database and analyzed by descriptive analysis. Qualitative evaluation (...) was performed by semi-structured interviews with 18 HPs who were differently involved in the BU’s activities and analyzed by framework analysis.ResultsQuantitative results showed an extensive increment of the number of BU research projects over the years and the number of work collaborations with other units and wards. Qualitative findings revealed four main themes, concerning: 1. the reasons for contacting the BU and the type of collaboration; 2. the role of the bioethicist; 3. the impact of BU activities on HPs, in terms of developing deeper and more mature thinking; 4. the need to extend ethics support to other settings. Overall, our results showed that performing both empirical bioethics research and more traditional clinical ethics activities at the same unit would produce an impetus to increase collaboration and spread an 'ethical culture' among local HPs.ConclusionsOur findings contribute to a growing body of literature on the models of clinical ethics support services and the role of empirical research in bioethics internationally. They also prepare the ground for the implementation of a multidisciplinary Clinical Ethics Committee (CEC) that aims to support the BU’s ethics consultation service within the local context. (shrink)

Esperimento mentale: siete Immanuel Kant, vi trovate in Australia, e ve ne state andando a passeggio. A un tratto scorgete una strana bestiola in riva al lago. Ha gli occhi di una talpa, ma sarà grande dieci volte tanto. Ha il becco di un’anatra, ma non ha le ali; e non ha piume bensì una fitta pelliccia che la fa assomigliare semmai a una lontra. La coda poi sembra quella di un castoro; e le zampe hanno dita palmate, ma con (...) artigli. Insomma, è proprio uno strano animale (ammesso che sia un animale e non una creatura degli inferi o lo scherzo di un taxidermista) nel quale certamente non vi siete mai imbattuti e di cui sicuramente non aver mai sentito parlare. Domanda: che cosa dunque state vedendo? Siete incappati in un ornitorinco. Ma attenzione: l’esperimento richiede che vi immedesimiate in Kant, e ai tempi di Kant l’ornitorinco non era ancora stato scoperto. Per meglio dire: non era ancora stato scoperto e classificato dai naturalisti europei, che ci avrebbero impiegato quasi un altro secolo prima di trovargli un posto nell’ordine sui generis dei mammiferi ovipari. Il vecchio Immanuel non ne sapeva nulla, non ne aveva il concetto; quindi voi non potete rispondere che state vedendo un ornitorinco. State vedendo quella cosa lì e basta. Il problema è cosa significhi dire che state vedendo quella cosa dato che non avete la più pallida idea di che cosa stiate vedendo. (shrink)

A recent paper by Jakl, Jung and Pultr succeeded for the first time in establishing a very natural link between bilattice logic and the duality theory of d-frames and bitopological spaces. In this paper we further exploit, extend and investigate this link from an algebraic and a logical point of view. In particular, we introduce classes of algebras that extend bilattices, d-frames and N4-lattices to a setting in which the negation is not necessarily involutive, and we study corresponding logics. We (...) provide product representation theorems for these algebras, as well as completeness, algebraizability results for the corresponding logics. (shrink)

What is beauty? What is art? What is taste and fashion? Is beauty something to be observed coolly and rationally or is it something dangerously involving? So begins Umberto Eco's intriguing journey into the aesthetics of beauty, in which he explores the ever-changing concept of the beautiful from the ancient Greeks to today. While closely examining the development of the visual arts and drawing on works of literature from each era, Eco broadens his enquiries to consider a range of (...) concepts, including the idea of love, the unattainable woman, natural inspiration versus numeric formulas, and the continuing importance of ugliness, cruelty, and even the demonic. Professor Eco takes us from classical antiquity to the present day, dispelling many preconceptions along the way and concluding that the relevance of his research is urgent because we live in an age of great reverence for beauty, "an orgy of tolerance, the total syncretism and the absolute and unstoppable polytheism of Beauty." In this, his first illustrated book, Professor Eco offers a layered approach that includes a running narrative, abundant examples of painting and sculpture, and excerpts from writers and philosophers of each age, plus comparative tables. A true road map to the idea of beauty for any reader who wishes to journey into this wonderful realm with Eco's nimble mind as guide. (shrink)

"... fascinating throughout.... the book is recreative in the highest sense." —Arthur C. Danto, The New Republic "A gem for Holmes fans and armchair detectives with a penchant for logical reflection, and Peirce scholars." —Library Journal.

A collection of essays discusses such topics as the nature of perception, the semiotic links between cognition and language, and iconism, with imaginative fables featuring animal heroes to illustrate the main points.

In recent years, several Vygotskian computer-based learning activities (VCBLAs) were designed in the context of (mathematics) education and implemented on Moodle platform. However, Moodle does not allow users to visualize all chats on a single browser page, and they are forced to open multiple browser windows and switch among them very frequently. This paper describes the features of a plugin for Moodle, called “Quick Chat,” which allows to manage in a single browser window both the narrative flow of a VCBLA (...) and all chats. Some results of an experimentation with PhD students, engaged in solving two mathematical tasks, are shown. (shrink)

Essays discuss poetry, communication, television, form, aesthetics, bad taste, and art.

In this book, the Italian novelist and philosopher Umberto Eco presents a learned summary of medieval aesthetic ideas.

A mesure qu'ils avancent dans leur œuvre de prospection, les sémioticiens s'aperçoivent que tout est communication, la langue bien sûr, mais aussi les images, les sons, les objets, les gestes, et que tous ces phénomènes constituent des systèmes de signes qui doivent être étudiés en ramenant chaque message aux codes qui en régissent l'émission et la compréhension. Comprendre les systèmes de signes impose toutefois d'envisager les codes comme des structures, puis de recouvrir à des structures toujours plus vastes, dans un (...) mouvement de régression vers la matrice originelle de toute communication possible, vers un prétendu Code des Codes qui devrait représenter la détermination " naturelle " précédant toute culture. Mais si la sémiotique s'engageait dans cette voie, elle ne pourrait qu'aboutir à la " source " de toute structure possible, forcément non structurée, à ce qu'Umberto Ecco appelle la structure absente. Son livre, tout en refusant ce Code des Codes, essaie de montrer que tout acte communicatif est dominé par la présence massive de codes socialement et historiquement déterminés. La sémiotique découvre ainsi dans la dialectique entre code et message les rapports entre l'univers de signes et l'univers des idéologies, qui se reflètent dans les modes communicatifs préconstitués, et elle relie le monde des choses au monde de la culture, qui formalise les choses non pas pour les reconnaître comme elles sont mais afin de les transformer. Après avoir étudié dans L'œuvre ouverte (1965) les structures des langages expérimentaux de l'art contemporain, Umberto Ecco traite ici l'ensemble des problèmes sémiotiques et ce livre constitue à la fois sa contribution à la recherche en cours et le panorama actuellement le plus vaste et le plus complet sur les préalables constitutifs à toute sémiotique et sur l'état présent du structuralisme. (shrink)

Irrational debt decisions at the individual level may harm collective welfare. For this reason, regulators are committed to encourage information-based behaviours in order to enhance likelihood of appropriate indebtedness. We analyse, with a diff-in-diff estimator, the Italian case offered by the Legislative Decree that reformed the consumer credit market adopting European Directive 2008/48/ec, and that reinforced the mandatory information acquisition, jointly asked to lenders and borrowers, before granting/receiving consumer credit. By using micro-data on 60.000 consumer credit borrowers, in total, randomly (...) sampled from the most relevant Italian Credit Bureau, our findings support that, in the medium term, the new consumer credit regulation has improved borrowers’ repayment ability, enhancing the quality of credit distribution. Nevertheless, a simplistic ‘better information-better behaviour’ relationship cannot be assured. This success is likely due to conjunct adaptation of behaviours, with shared responsibilities experienced on both the demand and offer side of the consumer credit marketplace. (shrink)

In a companion volume to his "History of Beauty," the renowned philosopher and cultural critic analyzes our attraction to the gruesome, horrific, and repellant in visual culture and the arts, drawing on abundant examples of painting and sculpture, ranging from antiquity to the works of Bosch, Goya, and others.