| Popis: |
Some terms are more abstract than others. Some terms are not more abstract than any others, and they constitute the zero level of abstraction. Some terms are more abstract than those of zero level, but not more abstract than any others, and they constitute the first level of abstraction. Some are more abstract than those of level one and zero, but not more abstract than any further ones; and they constitute the second level of abstraction. And so on up. I seem thus to have defined the levels of abstraction, but it is not much of a definition, for it assumes that we know what it means for one term to be more abstract than another. This I shall not define, but I shall point out some confusions over it. |
