'What is a self, and how can a self come out of inaminate matter?' This book examines this riddle. Linking together the music of J S Bach, the graphic art of Escher and the mathematical theorems of Godel, as well as ideas drawn from logic, biology, psychology, physics and linguistics, it reveals the mysteries of human thought processes.

This is a unique account of the fascination of mathematics and of one of its most compelling exponents in modern times.

Ayer rejected metaphysical claims about god, the absolute, and objective values as completely nonsensical. First published in 1936 when he was only 24, this work shook the foundations of Anglo-American philosophy and made its author notorious.

'Naming and Necessity' has had a great and increasing influence. It redirected philosophical attention to neglected questions of natural and metaphysical necessity and to the connections between these and theories of naming, and of identity. This seminal work, to which today's thriving essentialist metaphysics largely owes its impetus, is here reissued in a newly corrected form with a new preface

This work represents Wittgenstein's distillation of two decades of intense work on the philosophies of mind, language and meaning. This edition is published on the 50th anniversary of Wittgenstein's death, and incorporates final revisions by Anscombe to her original English translation.

A text for symbolic or formal logic courses which presents various techniques and concepts with comprehensive explanations. It includes a wealth of carefully constructed examples.