A new type of impossible picture is presented and described. The picture involves an object along with its reflection in a plane mirror, delivering two apparently irreconcilable views of the object itself when seen simultaneously in its flesh and in the mirror. Contrary to other, more familiar impos...

Counting the Holes

Articles

Roberto Casati et al. (2004)

Articles

Argle claimed that holes supervene on their material hosts, and that every truth about holes boils down to a truth about perforated things. This may well be right, assuming holes are perforations. But we still need an explicit theory of holes to do justice to the ordinary way of counting holes—or so...

Un altro mondo? [Another world? - in Italian]

Articles

Roberto Casati et al. (2002)

Articles

Alexandre Koyré wrote that Newton and the science that followed led to a splitting of the world: on the one hand is the "world of qualities and of sensible perceptions", on the other is the "world of quantities and of reified geometry". A comparison between facts held true by common sense and false...

That Useless Time Machine

Articles

Roberto Casati et al. (2001)

Articles

Dear "Time Machine" Research Group: if in order to travel to the past one has to have been there already, and if one can only do what has already been done, then why build a time machine in the first place? À quoi bon l'effort?

Topological Essentialism

Articles

Roberto Casati et al. (2000)

Articles

Considering topology as an extension of mereology, this paper analyses topological variants of mereological essentialism (the thesis that an object could not have different parts than the ones it has). In particular, we examine de dicto and de re versions of two theses: (i) that an object cannot cha...

True and False: An Exchange

Livres et chapitres d'ouvrages

Roberto Casati et al. (2000)

Livres et chapitres d'ouvrages

Classically, truth and falsehood are opposite, and so are logical truth and logical falsehood. In this paper we imagine a situation in which the opposition is so pervasive in the language we use as to threaten the very possibility of telling truth from falsehood. The example exploits a suggestion of...

Ontological Tools for Geographic Representation

Livres et chapitres d'ouvrages

Roberto Casati et al. (1998)

Livres et chapitres d'ouvrages

This paper is concerned with certain ontological issues in the foundations of geographic representation. It sets out what these basic issues are, describes the tools needed to deal with them, and draws some implications for a general theory of spatial representation. Our approach has ramifications i...

Spatial Entities

Livres et chapitres d'ouvrages

Roberto Casati et al. (1997)

Livres et chapitres d'ouvrages

Ordinary reasoning about space—we argue—is first and foremost reasoning about things located in space. This suggests that any theory concerned with the construction of a general model of our spatial competence must be grounded on a general account of the sort of entities that may enter into the scop...

The Structure of Spatial Localization

Articles

Roberto Casati et al. (1996)

Articles

What are the relationships between an entity and the space at which it is located? And between a region of space and the events that take place there? What is the metaphysical structure of localization? What its modal status? This paper addresses some of these questions in an attempt to work out at...

Ockham’s Razor, or the Murder of Concreteness. A Vindication of the Unitarian Tradition

Articles

De Monticelli Roberta (8 nov. 2023)

Articles

The notion of de re truth (Conte, 2016) is put to work in this paper (§ 1). It introduces us to a confrontation between a metaphysics of desertic landscapes, as presented in a stunning poem by Achille Varzi and Claudio Calosi, The Tribulations of Philosophye (§ 2), and an ontology of the lifeworld,...

Principes logico-formels et principes ontologico-formels

Livres et chapitres d'ouvrages

Sébastien Richard (20 mars 2020)

Livres et chapitres d'ouvrages

L’ontologie formelle : au carrefour du logique et de l’extralogique L’ontologie formelle est née dans les Recherches logiques de Husserl, qui y distingue celle-ci des différentes ontologies matérielles. Dans la métaphysique analytique contemporaine, cette distinction entre deux types d’ontologies es...

Sono ancora utili oggi le categorie di Aristotele?

Articles

Enrico Berti (14 juil. 2017)

Articles

1. Il catalogo degli oggetti Il titolo di questo contributo mi è venuto in mente leggendo il libro di Achille Varzi, Parole, oggetti, eventi e altri argomenti di metafisica, che pone proprio all’inizio il problema di fare un catalogo universale di ciò che esiste. Avevo già avuto sentore che questo f...

[Grand Prix de l'Automobile Club de France 1935. Les Auto Union n°10 de Hans Stuck et n°8 d'Achille Varzi]

Photos et images

(1935)

Photos et images

[Grand Prix de l'Automobile Club de France 1934. Achille Varzi discutant avant le départ]

Photos et images

(1934)

Photos et images