  Trendelenburg’s comprehensive discussion was most significant, and his results are typical: He was interested in the characteristica universalis as a tool for knowledge representation, although he stressed its utopian character. He had no interest in the logical calculus due to a philosophical skepticism towards mechanical tools. They cannot explain creativity and have no relations to the predominant interest of philosophy in that time, namely the fields of dynamical (temporal) logics which should help to model the movement of thought (Denkbewegung).