We establish that every 2-local inner derivation on a symmetrizable Kac-Moody Lie algebra Formula: see text over the field Formula: see text is a derivation. In addition, we demonstrate that if Formula: see text, where Formula: see text is the derived subalgebra of Formula: see text, then Formula: see text admits a 2-local derivation which is not a derivation.
Nehra et al. (Wed,) studied this question.