Dyshkant T. Irrational in scientific and extra-scientific knowledge

The object is the concept "irrational". Purpose of the work is definition of the sense of the concept "irrational" by use of the logical analysis. Methods are historical method, principles of comprehensive examination and objective and also discerning of the logical essence of the investigated texts. Theoretical results - analysis was conducted in different fields of knowledge. That permitted to reveal possibility of universal meaning of this concept. As a result was cleared a connection of this conception with a process of logical construction. The practical work significance consists in a definition of perspective of subsequent investigations of gnosiological peculiarities of fields of knowledge. The application sphere is scientifically-teaching activity, philosophy.