In this paper we describe a method for the specification of computationalmodels of argument using dialogue games. The method, which consists ofsupplying a set of semantic definitions for the performatives making upthe game, together with a state transition diagram, is described in full.Its use is illustrated by some examples of varying complexity, includingtwo complete specifications of particular dialogue games, Mackenzie's DC,and the authors' own TDG. The latter is also illustrated by a fully workedexample illustrating all the features of the (...) game. (shrink)

Recent summaries of psychologist James H. Leuba's pioneering studies on the religious beliefs of American scientists have misrepresented his findings and ignored important aspects of his analyses, including predictions regarding the future of religion. Much of the recent interest in Leuba was sparked by Edward J. Larson and Larry Witham's commentary in Nature , “Scientists Are Still Keeping the Faith.” Larson and Witham compared the results of their 1996 survey of one thousand randomly selected American scientists regarding their religious beliefs (...) with a similar survey published eighty years earlier by Leuba. Leuba's original studies are themselves problematical. Nonetheless, his notion that different fields of science have different impacts on the religion‐science relationship remains valid. Especially significant is his appreciation of religion as a dynamic, compelling force in human life: any waning of traditional beliefs does not mean a decrease in religious commitment but calls for a new spirituality in harmony with modern scientific teachings. Leuba's studies, placed in proper context, offer a broad historical perspective from which to interpret data about religious beliefs of scientists and the impact of science and scientists on public beliefs, and opportunity to develop new insight into the religion‐science relationship. (shrink)

Ethical problems of nuclear warfare, by D. M. MacKinnon.-Ethical problems of sex, by H. Root.-Personal relations before marriage, by H. Montefiore.-Conduct and faith, by J. Burnaby.

Biological organisms appear to have agency, goals, and meaningful behaviour. One possibility is that this is mere appearance, where such properties are not real, but only ‘as if’ consequences of the physiological structure of organisms. Another possibility is that these properties are real, as emerging from the organism's structure and from how the organism interacts with its environment. Here I will discuss a recent theory showing that the latter position is most likely correct, and argue that the theory is largely (...) consistent with the basics of the field of biosemiotics. The theory can be represented as a triad that resembles the semiotic triad proposed by Peirce, which connects a sign with its object through a process of interpretation. In the theory presented, the sign is an internalized version of fitness which refers to the true fitness through a feedback loop that in effect produces interpretation. The feedback loop entangles deterministic and stochastic forms of causation in such a way that genuine agency, goal-directedness, and their associated meaning emerge. It produces a strong form of emergence not reducible to its constituents. The result is that novel phenomena arise that are real and necessary components for a complete understanding of living organisms. (shrink)