The basic rules of classification are
- Each characteristic of division must produce at least two classes
- Only one principle of division must be used at a time, to produce mutually exclusive classes.
- The species of any genius must be completely exhaustive of their parent class.


p. 2. - Classification and indexing in science (1958) - Chapter 1: The need for classification

Brian Campbell Vickery Quotes

The basic rules of classification are - Each characteristic of division must produce at least two classes - Only one principle of division must be...

The basic rules of classification are - Each characteristic of division must produce at least two classes - Only one principle of division must be...

The basic rules of classification are - Each characteristic of division must produce at least two classes - Only one principle of division must be...

The basic rules of classification are - Each characteristic of division must produce at least two classes - Only one principle of division must be...