EN
We outline our recent results on bicovariant differential calculi on co-quasitriangular Hopf algebras, in particular that if $𝔤_{Γ}$ is a quantum tangent space (quantum Lie algebra) for a CQT Hopf algebra A, then the space $k ⊕ 𝔤_{Γ}$ is a braided Lie algebra in the category of A-comodules. An important consequence of this is that the universal enveloping algebra $U(𝔤_{Γ})$ is a bialgebra in the category of A-comodules.