Abstract

This article is concerned to say something about what the study of logic meant to wittgenstein. It is concerned to bring out why the kind of questions wittgenstein raised about logic and mathematics cannot be pursued in a purely formal and abstract manner-As russell pursued them to a very large extent. It tries to understand the prominence wittgenstein gave to a study of these questions in his philosophical investigations and to appreciate the sense in which he regarded a study of logic to be fundamental in philosophy. Part I is largely about the sense in which russell's study of logic is philosophical in character though it differs very considerably, In both style and conception, From wittgenstein's study of it. Part ii is concerned to indicate wittgenstein's dissatisfaction with russell's view that mathematics are indistinguishable from logic and to say something about why he thought that russell's formal proof, Even if valid, Did not establish the philosophical thesis for which he argued. Part iii is concerned to indicate wittgenstein's dissatisfaction with russell's approach to the contradictions in the foundations of mathematics and to say something about his very different treatment of this question