ДЕЛЕНИЕ ОБЪЁМА ПОНЯТИЙ

Division of the Volume of Concepts

A logical operation which reveals the volume of concepts; the separation and enumeration of species forming the volume of a concept. The practical purpose of Division of the Volume of Concepts is a systematic survey of the objects brought together in a concept. Division of the Volume of Concepts is based on a specific feature (or aggregate of features) known as the basis of Division of the Volume of Concepts. Choice of the basis depends on the purpose for which Division of the Volume of Concepts is made. For example, the concept "triangle" may be divided according to the nature of the angles into right-angled, acute-angled and obtuse-angled.

There are two basic types of Division of the Volume of Concepts: (1) division according to change of feature, wherein all species that differ with respect to the feature taken as the basis for division are listed (as in the above example) and (2) dichotomous division, wherein the volume of the concept is divided into two parts—the class of objects possessing the feature taken as the basis, and the class of objects not possessing that feature (e.g., juridical and non-juridical relations). This method of Division of the Volume of Concepts is used whenever objects possessing a common feature need to be singled out among objects not possessing that feature.

The main rules of Division of the Volume of Concepts are: complete enumeration of species and separation of species in division according to one basis (the latter preventing intersection of species). Classification is a particular case of Division of the Volume of Concepts.