New Approaches To Classes And Concepts

Classifying objects --- thus collecting them into classes --- is an operation both fundamental and common in everyday life as well as in scientific endeavours. Logic, philosophy, mathematics and computer science analyse this activity by means of such notions as 'class',
'set', and 'type'. Furthermore, according to the so-called &'grave;logical
(or naive) conception of classes", these notions are related to the notion 'concept' in that classes are considered 'extensions' of concepts. Th…