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The present volume collects some of the talks given at the Bertrand Russell Colloquium on Exact Philosophy, attached to the McGill University Foundations and Philosophy of Science Unit. It also includes a paper, on Bertrand Russell's method of philosophizing, read at the memorial symposium held at Sir Gorge Williams University shortly after the philosopher's death. All the papers appear here for the first time. Unlike many a philosophy of scie...

This book presents the classic relative consistency proofs in set theory that are obtained by the device of 'inner models'. Three examples of such models are investigated in Chapters VI, VII, and VIII, the most important of these, the class of constructible sets, leads to G6del's result that the axiom of choice and the continuum hypothesis are consistent with the rest of set theory [1]I. The text thus constitutes an introduction to the results...

The 6th ESLAB Symposium, organised by the Space Science Department (formerly ESLAB) of the European Space Research and Technology Center, was held in Noord­ wijk from 26-29 September 1972. This year the theme was "Photon and Particle Interactions with Surfaces in Space". More than 60 scientists attended mainly from ESRO Member States and from America. The first part of the Symposium was devoted to introductory lectures and to papers on interac...

Quantum Theory of Chemical Reactivity may be read without reference to the fact that it is actually the third of three volumes of a treatise on quantum chemistry, the science resulting from the implementation of mathematical laws in the realm of molecular populations. The first two volumes of the treatise, 'Fondement de la Chimie Tbeorique' and 'Structure Electrique des Molecules' were, like this third volume, originally published by Gauthier-...

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IX LIST OF PRINCIPAL SPEAKERS XI LIST OF PARTICIPANTS 1. REGULARIZATION E. STIEFEL / A Linear Theory of the Perturbed Two-Body Problem (Regul- ization) 3 J. WALDVOGEL / Collision Singularities in Gravitational Problems 21 D. C. HEGGIE / Regularization Using a Time-Transformation Only 34 J. BAUMGAR TE / Stabilization of the Differential Equations of Keplerian Motion 38 F. NAHON / The Particular Solutions of Levi-Civita 45 O. GODAR T / Example o...

What better way to learn to read than with Curious George as your classmate and the man with the yellow hat as your teacher? In this classic book by H.A. Rey, Curious George has progressed from learning to wash dishes, clean windows, and ride a bike to learning his letters-with time out for fun, food, football, mischief, and a surprise at the end!

If we consider how theoretical operations belonging to the methodological inventory of linguistics are carried out (i. e. the way linguistic theories are set up), three main criteria suggest themselves for classifying them: (1) Both, nature and type of the aims of the scientific knowledge applied which allow to specify the epistemological interests as well as the theoretical impact constituting the purpose of linguistic operations, (2) the nat...

Chemistry and its products today play an important role in almost all industrial ac­ tivities. Chemistry has captured our homes. We are supplied with new articles in an ever-increasing stream. New uses are being discovered. Old products disappear. Continuing and fast expansion is expected for the chemical industry in its proper sense. The reason for this is, of course, that chemistry has created products which meet requirements that we conside...

In 1965 the International Union of the History and Philosophy of Science founded the Nicolas Copernicus Committee whose main task was to explore the means by th which different nations could co-operate in celebrating the 5 centenary of the great scholar's birth. The committee initiated the publication of a collection of studies dealing with the effect that Copernicus' theory has had on scientific developments in centres of learning all over th...

In his teachings and through his choice of the dialogue-form as a mode of communication, Plato emphasized the communal aspect of intellectual work. The need for having a community work together is nowhere more apparent then when the intellectual task set is that of interpreting the ancient philosophers. Those of us who were fortunate enough to spend some of our years as students at Oxford found that among our most inspiring experiences were th...

Proceedings of IAU Symposium No. 50, held in Villa Carlos Paz, Argentina, October 18-24, 1971