All the works belonging to this scientific world, with their specific communal sense of being (actual and true being and, on the other hand, incorrect, false being for all persons of the community), do not merely make up a multiplicity belonging together according to their mode of being; rather, the particular works the particular scientific results become premises, building stones for works of a higher level, and this of necessity and in infinitum and, at the same time, in such a way that all the works of science come together in a coherent total work, the theoretical system (the theory contained in an ideal textbook).