On the notion of effectiveness

This paper focuses on two notions of effectiveness which are not treated in detail elsewhere. Unlike the standard computability notion, which is a property of functions themselves, both notions of effectiveness are properties of interpreted linguistic presentations of functions. It is shown that effectiveness is epistemically at least as basic as computability in the sense that decisions about computability normally involve judgments concerning effectiveness. There are many occurrences of the present notions in the writings of logicians; moreover, consideration of these notions can contribute to the clarification and, perhaps, solution of various philosophical problems, confusions and disputes.     

On the notion of second-order exchangeability

In this paper we consider the conditions of second-order exchangeability and second-order partially exchangeability together with some applications.The first application concerns a general linear state-space model in which the noise process is assumed to be second-order partially exchangeable. Other applications of the second-order exchangeability condition regard statistical procedures in which imprecise prior probability assessments are employed.     

On the relevance and importance of the notion of disease

This paper constitutes a defence of the basic philosophical enterprise of characterising concepts such as ‘disease’ and ‘health’, as well as other medical concepts. I argue that these concepts play important roles, not only in medical, but also in other scientific and social contexts. In particular, medical decisions about health and diseasehood have important ethical, social and economic consequences. The role played is, however, not always a rational one. But the greater is the need for a reconstruction of this network of concepts for the purpose of efficient and rational communication.     

Zen Buddhism and the intrinsic value of nature

Part IIt is a perennial theme in the literature on environmental ethics that the exploitation of the environment is the result of a blindness to (or perhaps a refusal to recognize) the intrinsic value of natural beings. The general story here is that Western traditions of thought have tended to accord natural beings value only to the extent that they prove useful to humans, that they have tended to see nature as only instrumentally valuable. By contrast, it is said that a new, environmentally friendly understanding of the world would value nature ‘for its own sake’, would conceive natural beings as having intrinsic value. In the light of such an understanding, the oak tree, for instance, would be seen not merely as a source of timber or shade or as a decoration for the front lawn, but as valuable ‘in itself’, as having an intrinsic value that ought to be respected (see further, O'Neill 1993, chapter 2).     

The axiometric structure of intrinsic value

The Journal of Value Inquiry -     

On the logical structure of de Finetti's notion of event

This paper sheds new light on the subtle relation between probability and logic by (i) providing a logical development of Bruno de Finetti's conception of events and (ii) suggesting that the subjective nature of de Finetti's interpretation of probability emerges in a clearer form against such a logical background. By making explicit the epistemic structure which underlies what we call Choice-based probability we show that whilst all rational degrees of belief must be probabilities, the converse doesn't hold: some probability values don't represent decision-relevant quantifications of uncertainty.     

On Kreisel's notion of validity in post systems

This paper investigates various interpretations of HPC (Heyting's predicate calculus) and mainly of HPC₀ (Heyting's propositional calculus) in Post systems.§1 recalls some background material concerning HPC including the Kripke and Beth interpretations, and later sections study the various interpretations available.Allatum est die 27 Octobris 1975     

On the notion of home and the goals of palliative care

The notion of home is well known from our everyday experience, and plays a crucial role in all kinds of narratives about human life, but is hardly ever systematically dealt with in the philosophy of medicine and health care. This paper is based upon the intuitively positive connotation of the term “home.” By metaphorically describing the goal of palliative care as “the patient’s coming home,” it wants to contribute to a medical humanities approach of medicine. It is argued that this metaphor can enrich our understanding of the goals of palliative care and its proper objectives. Four interpretations of “home” and “coming home” are explored: (1) one’s own house or homelike environment, (2) one’s own body, (3) the psychosocial environment, and (4) the spiritual dimension, in particular, the origin of human existence. Thinking in terms of coming home implies a normative point of view. It represents central human values and refers not only to the medical-technical and care aspects of health care, but also to the moral context.