This lecture introduces epsilonization, focusing on algebra homomorphisms and derivation numbers. It covers the claim that algebra homomorphisms are the maps of the homomorphism S.E.X(G[ɛ]) si 6(x). The lecture also discusses the derivation numbers in the C-algebra, showing how they are the maps of the form 6(&) - f[e. Furthermore, it explains the derivation of b(8) and the closed subvariety concept in the context of epsilonization.