a This sentence is falsea - is that true? The a Liar paradoxa embodied in those words exerted a particular fascination on the logicians of the Western later Middle Ages, and, along with similar a insolublea problems, forms the subject of the first group of articles in this volume. In the following parts Professor Spade turns to medieval semantic theory, views on the relationship between language and thought, and to a study of one particular genre of disputation, that known as a obligationesa . The focus is on the Oxford scholastics of the first half of the 14th century, and it is the name of...