Published online by Cambridge University Press: 28 November 2008
Linguistics, epistemology and psychology share many common interests; for instance, an interest in the learning of language, in the nature of the fundamental units of which linguistic systems are composed, in the correspondence between language operations, logical operations and intellectual operations. The phenomenon of COMPARISON falls under the latter rubric, as do, for instance, NEGATION, ASSERTION and PREDICATION. In the literature of these three disciplines we find ample evidence of an interest in the latter three phenomena, but there has been surprisingly little discussion of comparison. We say, ‘surprisingly’, since of these four operations comparison might well be held to be the most important. In any kind of classification the fundamental intellectual activity is the comparing of one object, event, etc. with another or with others. Further, to adopt the terminology of psychology, our behaviour in any situation must be governed to some extent by the recognition, whether implicit or explicit, of similarities and differences between that situation and others with which we have had to deal.