Introduction: Science and Common Sense Long before the beginnings of modern civilization, men ac- quired vast funds of information about their environment. ...

In 1931 the mathematical logician Kurt Godel published a revolutionary paper that challenged certain basic assumptions underpinning mathematics and logic. A colleague of Albert Einstein, his theorem proved that mathematics was partly based on propositions not provable within the mathematical system and had radical implications that have echoed throughout many fields. A gripping combination of science and accessibility, _Godel’s Proof_ by Nagel and Newman is for both mathematicians and the idly curious, offering those with a taste for logic and philosophy (...) the chance to satisfy their intellectual curiosity. (shrink)

Provability, Computability and Reflection.

Ernest Nagel, one of the world's leading philosophers of science, is an unreconstructed empirical rationalist who continues to believe that the logical methods of the modern natural sciences are the most successful instruments men have devised to acquire reliable knowledge. This book presents "Teleology Revisited"-the John Dewey lectures delivered at Columbia University- and eleven of Nagel's articles on the philosophy of science.

Professor [H.W.] Sheldon's critique of contemporary naturalism as professed in the volume Naturalism and the Human Spirit consists of one central "accusation": naturalism is materialism pure and simple. This charge is supported by his further claim that since the scientific method naturalists espouse for acquiring reliable knowledge of nature is incapable of yielding knowledge of the mental or spiritual "nature" for the naturalist is definitionally limited to "physical nature." He therefore concludes that instead of being a philosophy which can settle (...) age-old conflicts between materialism and idealism, naturalism is no more than a partisan standpoint, and contributes no new philosophical synthesis. ... (shrink)

No account of the development of contemporary empiricism is adequate which neglects the writings and the influence of Charles Peirce. Although he is not easily pigeon-holed and can not be claimed as the exclusive property of any school or movement, it is appropriate that the hundredth anniversary of his birth should be commemorated at this Congress. For the movement of which it is a manifestation is engaged in a coöperative, intensive cultivation of the methods of the sciences with the help (...) of the most advanced tools of modern logic; and Peirce's intellectual career was also a single-minded devotion to that task. It is fitting, also, that his birth-year be celebrated at Harvard by an international congress. For although he was denied the privilege of teaching at this university, much of his influence was propagated by William James and Josiah Royce, two of its great teachers; and however much he may have suffered from neglect during his life-time, his work surely merits recognition from a movement not confined by national bounds. It is characteristic of the best established sciences that though individuals may pursue researches in them independently of one another, the conclusions reached tend to support each other and to converge toward a common stream of sound beliefs; and such convergence is indeed the sole identifiable warrant for the confidence that some measure of the truth has been attained. It is therefore a happy sign that so many of the central ideas of the present movement have been independently developed on both sides of the Atlantic. One is not minimizing the contributions of the Vienna Circle in pointing out that many of its recent views have been taken for granted for some time by American colleagues, largely because the latter have come to intellectual maturity under the influence of Peirce. (shrink)

Professor Reichenbach's writings have repeatedly called attention to the important rôle which probability statements play in all inquiry, and he has made amply clear that no philosophy of science can be regarded as adequate which does not square its accounts with the problems of probable inference. Recently he has brought together in convenient form many reflections on the methodology of science familiar to readers of his earlier works, and at the same time he has set himself the task of solving (...) many well-known problems of epistemology in terms of his theory of probability. His latest book is therefore of great interest, both because of the light it throws on Professor Reichenbach's own views and because it reveals the power and limitations of one approach to the problems of science. In particular, while it does not add to the details of his theory of probability worked out elsewhere, the applications Professor Reichenbach now makes of it supply fresh clues for judging its import and adequacy. The object of the present essay, therefore, is to expound a number of his views on probability and epistemology, with a view to examining his conclusions and their relevance to the problems he aims to resolve. The discussion will try to determine whether several features of his present views do not follow from assumptions which he has not sufficiently considered; whether his logical constructions do not create new puzzles; and whether a different starting-point should not be taken if the clarification of scientific concepts and procedures, to which Professor Reichenbach's devotion is as unexcelled as it is well known, is to be successfully conducted. (shrink)

A special merit of Professor Feigl's stimulating essay lies in the clarity with which he draws the issue between phenomenalistic and realistic interpretations of science as one concerned entirely with the evaluation of their relative adequacy as analytic reconstructions of empirical knowledge. Responsible and fruitful discussion of these interpretations cannot therefore be a debate over the truth or falsity of scientific theories. For as he carefully notes, the differences between these alternative analyses are not “pragmatic differences” of the ordinary sort, (...) since no differences in regard to any observable consequences that could weigh for or against a scientific theory can be associated with them. Feigl's own rejection of phenomenalism and his espousal of semantic realism must in consequence also be judged in terms of the standard he himself has recognized as alone relevant in this discussion. (shrink)

Originally published in 1971. The three contributions collected in this volume deal with different aspects of a single theme—the logical status of scientific theories in their relation to observation. These lectures, authored by different thinkers, treat this theme in connection with some controversies in the philosophy of science. A nonspecialist who reads these lectures should realize that the theme itself is a perennial one with an ancient lineage. It has concerned philosophers from the earliest era of philosophy on down through (...) the centuries. A central philosophical issue at stake in the lectures is the question of whether scientific theories are testable in terms of our observations such that we can know whether some theories are true and others false. Although differing in their emphases, all three contributors seek a more plausible and nonskeptical philosophical account of the status of scientific theories in relation to observation. (shrink)