where W A has form degree q and the sum is over all forms whose form degrees add up to q + 1 . The simplest example of unfolded equations are the zero curvature equations d ω ω = 1 2 [ ω ω , ω ω ] for a one-form connection ω ω of any Lie algebra g . Here A runs over the base of the Lie algebra, and the structure function F A ( ω ω ) = f B C A ω ω A ∧ ∧ ω ω B encodes the structure constants of the Lie algebra.