By R. B. Banerji
Communications of the ACM,
August 1962,
Vol. 5 No. 8, Pages 426-432
10.1145/368637.368649
Comments
A concept is defined as a class of objects whose members can be distinguished by processing its properties. Property is defined to mean a partition of the set of all objects into disjoint classes. The formal definition of a concept is recursive in nature.
A concept is described by a list structure. A one-to-one correspondence is established between the recursive definition of a concept and its description list structure. Like the definition, the description list structure of a concept is also built up from elementary list structures by a recursive process.
The list structures obtained this way are compared with the description list structure discussed by the author in a previous publication.
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