This paper problematises the justification of ‘postist’ revisions humanism. In first part paper, a line thought that persistently marks self-perception man is presented. It stretches from Plato, through Pico della Mirandola and Kant, all way to existentialism philosophical anthropology in twentieth century. it, understood as chronically deficient their own ‘nature’ or ‘essence’, his privileged ...

Motivation. The theory of affine (Kac-Moody) Lie algebras has been a tremendous success story. Not only has one been able to generalize essentially all of the well-developed theory of finite-dimensional simple Lie algebras and their associated groups to the setting of affine Lie algebras, but these algebras have found many striking applications in other parts of mathematics. It is natural to as...