Abstract

The ‘placement’ of new types of knowledge in certain theoretical systems is thought within the limits of the two side models: Every new knowledge is added to previous knowledge when the principle of cumulativity is used as base. The main problem is how this `addition` is realized. However, there is a second way; the existing system of knowledge collapses and then is constructed once again. The real process usually happens between these two poles. It depends on the compatibility between new knowledge and the theory whether previous knowledge will be preserved or will be destroyed and constructed anew. Together with the methods of verification and falsification it is also possible to examine the accuracy of new theoretical proposals by means of theoretical trial-and-error method. The implementation of this method, which is widely spread in practice, to theory is realized by the way of entering any new idea and proposal directly to the structure of the theory without any control. It becomes a criterion of truth whether or not new knowledge is compatible with the known theoretical system, which has already been tested, and whether it is native or alien to this system.