Metaphysical Research – serie

The aim of the book is to show that the Five Ways of Thomas Aquinas, i.e. his five arguments to prove the existence of God, are logically correct arguments by the standards of modern Predicate Logic. In the first chapter this is done by commenting on the two preliminary articles preceeding the Five Ways in which Thomas Aquinas points out that on the one hand the existence of God is not self-evident to us and on the other hand, that, similar as in some scientific explanations, the mere existence of a cause for an effect which is evidently known to us can be proved. In the second chapter every argument is translated into the symbolic form of Predicate Logic and its logical validity is shown. Additionally a detailed and critical discussion of the premises of each argument is given.

There is no question: We are all persons. But what exactly are persons? Are we immaterial souls or Cartesian Egos which only contingently have bodies? Or are persons nothing over and above their bodies? Are they essentially or most fundamentally animals, evolved beings of a certain sort? Or are we something other or more than animals, namely constituted beings with a certain capacity that distinguishes persons from everything else? What is necessary, and what is sufficient, for an entity to be classified or (re-)identified as a person? What's the value of an analysis of such (biological or psychological) conditions? What does it contribute to our understanding of ourselves as free agents or as beings wanting to live their individual live? The essays collected in this anthology try to answer these questions. They are primarily concerned with the metaphysics of persons and the criteria of personal identity, but also touch on problems of the theory of action and of practical philosophy.

Fifty years after Willard Van Orman Quine published From a logical point of view (1953), John Heil brought out his book 'From an ontological point of view' (2003). The title expresses the shift in contemporary philosophy from logical and epistemological concerns to metaphysics. The papers of this symposium discuss that shift, focussing on what John Heil calls 'ontological seriousness', truth-making, levels of being, properties, powers, and reductionism. Each paper is followed by a comment from John Heil. The volume covers a number of the most hotly debated issues in today’s metaphysics and moves the discussion on in several important aspects. 'It would be difficult to imagine a collection of more astute, penetrating, and philosophically hard-hitting discussions of the kind of metaphysical realism articulated in 'From an Ontological Point of View'. Symposium participants deploy an impressive range of analytical skills in a way that illuminates connections among metaphysical positions that too often escape notice.' (John Heil)

This work is a systematic investigation of a range of solutions offered today for the philosophical problem of mental causation. The premises constituting the problem are analyzed before a survey is developed of the most popular theories on mental causation. It is demonstrated in detail why most of these canonical solutions must be considered deficient. In a third part, the 'new compatibilist’s' approach to mental causation is explored, which is characterized by assertion of a non-identity-but-non-distinctness principle. The last part aims to offer an alternative solution to the problem. On the basis of a certain set of counterfactual conditionals, which are jointly taken to provide a definition of 'causal proportionality' that improves the existing definitions, it is shown that a specific, and hitherto widely neglected, version of causal overdeterminationism must be considered the most successful solution to the problem of mental causation.

Ontology is the philosophical discipline which aims to understand how things in the world are divided into categories and how these categories are related together. This is exactly what information scientists aim for in creating structured, automated representations, called ‘ontologies,’ for managing information in fields such as science, government, industry, and healthcare. Currently, these systems are designed in a variety of different ways, so they cannot share data with one another. They are often idiosyncratically structured, accessible only to those who created them, and unable to serve as inputs for automated reasoning. This volume shows, in a non-technical way and using examples from medicine and biology, how the rigorous application of theories and insights from philosophical ontology can improve the ontologies upon which information management depends.