Guido Bonino

Gustav Bergmann was, arguably, one of the greatestontologists of the twentieth century. In 2006 and 2007, after aperiod of relative neglect, international conferences devoted solelyto Bergmanns work were held at the University of Iowa in the USA,Universit de Provence in France, and Universit degli Studi diRoma Tre in Italy. The fifteen papers collected in this volume werepresented at the third of these conferences, in Rome, and are here dividedinto three sections: "Categories of a realistic ontology," "World,mind, and relations," and "Metaphysics of space and time".

In the chapter three main topics, which are dealt with in Wittgenstein’s pre-Tractatus writings and which are closely connected with one another, are examined in the light of the opposition between symmetrical and asymmetrical views of negation: (1) the nature of the truth-makers of negative propositions; (2) whether negative facts can act as truth-bearers; and (3) symmetry and asymmetry concerning truth and falsehood. On the whole, Wittgenstein seems to be driven by a strong “symmetricalist” intuition, which provides the dominant themes of his reflections. Yet, important “asymmetricalist” counterthemes are also present and can account for many uncertainties and oscillations on Wittgenstein’s part.

The article investigates what happens when philosophy meets and begins to establish connections with two formal research methods such as game theory and network science. We use citation analysis to identify, among the articles published in Synthese and Philosophy of Science between 1985 and 2021, those that cite the specialistic literature in game theory and network science. Then, we investigate the structure of the two corpora thus identified by bibliographic coupling and divide them into clusters of related papers by automatic community detection. Lastly, we construct by the same bibliometric techniques a reference map of philosophy, on which we overlay our corpora to map the diffusion of game theory and network science in the various sub-areas of recent philosophy. Three main results derive from this study. Philosophers are interested not only in using and investigating game theory as a formal method belonging to applied mathematics and sharing many relevant features with social choice theory, but also in considering its applications in more empirically oriented disciplines such as social psychology, cognitive science, or biology. Philosophers focus on networks in two research contexts and in two different ways: in the debate on causality and scientific explanation, they consider the results of network science; in social epistemology, they employ network science as a formal tool. In the reference map, logic—whose use in philosophy dates back to a much earlier period—is distributed in a more uniform way than recently encountered disciplines such as game theory and network science. We conclude by discussing some methodological limitations of our bibliometric approach, especially with reference to the problem of field delineation.

The book aims at a comprehensive account of the relationship between Wittgenstein s Tractatus Logico-Philosophicus and Russell s philosophy as it developed between 1903 and 1918. The focus is on the central nucleus of the Tractatus, i.e., on its ontology and the picture theory of language. On Russell s side, the multiple-relation theory of judgment has been chosen as the leading theme around which the presentation of several other issues is organized. Whereas the similarity between Russell s and Wittgenstein s problems is pointed out, the deep difference between their solutions is acknowledged, in particular with reference to the opposition between objects and names on the one hand, and facts and propositions on the other."

Esiste, oltre alle singole cose rosse, la proprietà universale "rosso"? O esistono invece solo le entità individuali e particolari? Come spiegare il fatto che più entità tra loro distinte possono essere tuttavia uguali per un determinato aspetto? E che cos'è che distingue due entità che condividano esattamente le stesse proprietà? Questi sono alcuni dei problemi che costituiscono la questione degli universali e dei particolari, che, a partire dai dialoghi platonici e dalla metafisica di Aristotele, ha sempre rappresentato uno dei nodi centrali dell'ontologia. Di tale questione il libro ripercorre le tappe storiche principali, partendo dalla formulazione che ne fu proposta nell'antichità, esaminando gli importanti e variegati sviluppi medievali, individuandone la presenza talvolta nascosta nella filosofia moderna e ricostruendo i dibattiti della metafisica contemporanea, che ha visto una significativa rinascita di interesse per questi temi, soprattutto nell'ambito della filosofia analitica. (English version) Does there exist, besides single red things, a universal red property? Or are there only individual, particular entities? How does one explain the fact that many distinct entities can be considered the same as regards a specific feature? And what is it exactly that distinguishes two things that share the exact same property? These are some of the questions that involve universals and particulars, a general issue that, ever since Plato's dialogues and Aristotle's Metaphysics, has played a crucial role in ontology. This book outlines the evolution of this issue through its main historical phases, from its initial conception in ancient times, through its medieval development, up to its sometimes hidden presence in modern philosophy. The text also addresses contemporary debates in metaphysics, in which there is a significant revival of interest for this topic, especially in analytical philosophy.

Using quantitative methods, we investigate the role of logic in analytic philosophy from 1941 to 2010. In particular, a corpus of five journals publishing analytic philosophy is assessed and evaluated against three main criteria: the presence of logic, its role and level of technical sophistication. The analysis reveals that logic is not present at all in nearly three-quarters of the corpus, the instrumental role of logic prevails over the non-instrumental ones, and the level of technical sophistication increases in time, although it remains relatively low. These results are used to challenge the view, widespread among analytic philosophers and labeled here “prevailing view”, that logic is a widely used and highly sophisticated method to analyze philosophical problems.