Sir Alfred Ayer caused a furore with the publication of his LANGUAGE, TRUTH & LOGIC in 1936, when he was only 24. From 1959 until 1978 he was Wykeham Professor of Logic at the University of Oxford. He died in 1989. Ben Rogers is the author of A. J.AYER: A LIFE (Chatto & Windus 1999, Vintage 2000).