التطبيقات القديمة: Old applications:

Abstract

It often is naively under- stood as simply prescinding from aspects not considered as important for a task at hand. This approach to abstraction does not take into account two points: Firstly, prior to prescinding from characteristics of a phenomenon this phenomenon must be constructed conceptually. Secondly, the extent of a notion in general only can be determined with respect to a scope that was presupposed.