Abstract

When, in 1979, A. J. Ayer was asked for an evaluation of his youthful Language, Truth and Logic (LTL), he replied: ‘I suppose the most important of the defects was that nearly all of it was false’. Like many of the claims in the book itself, this verdict is open to question. What was wrong with LTL was not so much that what it said was false, but that it presented philosophical issues in an excessively simple and aggressive way. Yet it was just this quality that put the book and its author on the philosophical map, ensuring for them an important place in the history of twentieth-century philosophy. LTL presented a challenge to traditional ways of doing philosophy, the reverberations of which are still evident today.