The contents of this book were originally published in the September 1966 issue of Scientific American. A more appropriate-but perhaps less "catchy"—title would have been "Computers." The book is all about them and what they can—and cannot—do. Conspicuously missing is a chapter on the underlying mathematical theories of information, control, and computation. Nevertheless, there is a good deal of interesting material between the covers of this book. Of greatest concern to philosophers are the chapters on "Information" by John McCarthy, "Computer (...) Logic and Memory" by David C. Evans, "The Uses of Computers in Science" by Anthony G. Oettinger, "The Uses of Computers in Education" by Patrick Suppes, and "Artificial Intelligence" by Marvin L. Minsky. The first of these consists of a brief history of computing machines, an outline of the general principles of digital computers, and an interesting discussion of some of the moral and social issues which such machines raise. Evans' article is a popular description of binary logics and logic devices. The present reviewer has used some of the material in this chapter as embellishments in an undergraduate course in logic. Oettinger's article describes the novel way in which computers may aid in the formation of scientific theories. The paper by Suppes ought to be required reading for members of the "Teaching machines undermine intellectual development" school of thought. Finally, a philosopher of mind might have a field day with some of the remarkable and outrageous notions in Minsky's article; what, for example, is the difference between "thinking" and "exhibiting intelligence"? In sum, this is a stimulating book about a technological development which, for good or ill, is going to affect all of us.—H. P. K. (shrink)

Christianity affirms, with Judaism and Islam, that God is the omnipotent Creator of all things. But it diverges from them in also affirming that the Creator assumed a human nature in one figure of history, Jesus of Nazareth. Christ thus differs from other men in kind, not merely in degree; he is absolutely, not just relatively, unique. Admittedly many Christian theologians have held that the difference between Christ and other men is only one of degree. Yet the Church's traditional claim, (...) as expressed in the Chalcedonian Definition, is that Jesus was both creature and Creator, both fully man and fully God. (shrink)

The relation between morality and religion has often been discussed. However, it is not always recognized that the relation varies greatly according to the variety of religions. I shall here be concerned solely with Christian theism in its traditional form. I take the latter to signify, essentially, belief in a morally perfect Creator who exists in the threefold form of Father, Son and Holy Spirit and who, in the person of the Son, became man in Christ for our salvation. I (...) thus exclude from consideration all non-theistic accounts of God or the Absolute. Also I shall consider, not simply bare theism of the kind that Christians share with Jews and Muslims, but also the distinctively Christian form of theism that is generated by distinctively Christian revelation. Many otherwise sound descriptions of the relation between morality and theism are defective because they fail to consider the distinctively Christian contribution to the theistic concept of God and of his relation to the world. (shrink)

Many writers often generalise about mysticism without a sufficiently close analysis of texts. Consequently the generalisations are often invalid. My present aim is to analyse one text and, in the light of this analysis, to offer some observations concerning mysticism in general and Christian mysticism in particular.

For over thirty years C. A. Campbell has made major contributions to both ethics and metaphysics. Since these do not correspond to the prevailing fashions in philosophy and theology they are in danger of being under-estimated, if not ignored. I hope to summarise and comment on them as impartially as possible. Inevitably I must be selective. In writing for this journal I have, naturally, chosen to stress those elements in Campbell's thought which are directly or indirectly relevant to religion. Even (...) so, there are many points which I have no space to develop. I shall be content if I say enough to indicate the importance of Campbell's writings for the study of the philosophically crucial topics to which they are devoted. (shrink)

This paper is a contribution toward developing a theory of expansions of semi-Heyting algebras. It grew out of an attempt to settle a conjecture we had made in 1987. Firstly, we unify and extend strikingly similar results of [ 48 ] and [ 50 ] to the (new) equational class DHMSH of dually hemimorphic semi-Heyting algebras, or to its subvariety BDQDSH of blended dual quasi-De Morgan semi-Heyting algebras, thus settling the conjecture. Secondly, we give a criterion for a unary expansion (...) of semi-Heyting algebras to be a discriminator variety and give an algorithm to produce discriminator varieties. We then apply the criterion to exhibit an increasing sequence of discriminator subvarieties of BDQDSH . We also use it to prove that the variety DQSSH of dually quasi-Stone semi- Heyting algebras is a discriminator variety. Thirdly, we investigate a binary expansion of semi-Heyting algebras, namely the variety DblSH of double semi-Heyting algebras by characterizing its simples, and use the characterization to present an increasing sequence of discriminator subvarieties of DblSH . Finally, we apply these results to give bases for “small” subvarieties of BDQDSH , DQSSH , and DblSH. (shrink)

Poverty violates fundamental human values through its impact on individuals and on human environments, and it goes against the core values of democratic societies. Drawing on numerous scientific studies as well as his own experience witnessing the systematic poverty in his home country of South Africa, H. P. P. [Hennie] Lötter presents a holistic profile of poverty and its effects on human lives all the while accounting for the complexity of each individual case. He argues that shared ethical values must (...) guide the planning and distribution of aid and that our society must reevaluate our notions of justice and reimagine the role of the state in order to enable collective human responsibility for poverty’s successful eradication. (shrink)

Dilthey is a figure of real importance in European philosophy and social theory. He exerted a significant influence on Husserl, Heidegger and Weber through his work on the nature of philosophy and the methodology and epistemology of human and social studies. He was also a distinguished and original historian of ideas and, indeed, many of his philosophical interests arose from the insights and practical difficulties he encountered as a historian. He produced a monumental biography of Schleiermacher, and a series of (...) shorter, but no less striking studies of Hegel, Dickens, Shakespeare, Schiller and many others. (shrink)

Motivated by a paper by Barut and Meystre, Bohm's EPR gedanken experiment performed with classical and spin-s particles is considered, and the applicability of Bell's theorem to these cases is discussed. The classical model presented by Barut and Meystre is modified to become a stochastic local hidden-variable model reproducing the results of an EPR experiment of the type performed by Aspect et al.

Philosophic anthropology, Pursuing philosophy's traditional search for reflective self-Knowledge seeks to crystallize the ideas of man underpinning empirical research and moral ideals. Neither the claim that pure speculation can produce factual knowledge nor the contention that a higher synthesis of empirical findings can become philosophy is acceptable. Philosophic anthropology is, Therefore, Most usefully conceived as a critique which traces the necessary presuppositions of the study of man in its various forms of the more rules we apply.

This handbook with exercises reveals the mathematical beauty of formalisms hitherto mostly used for software and hardware design and verification.