nk+k+0} \sum_{\substack{F \in \mathcal{F}_k(P)\\G \in \mathcal{F}_{n-k}(Q)}} [v_F\wedge v_G] \operatorname{vol}(\operatorname{conv}(-\check n(F,P),\check n(G,Q))) \\ & \quad + \operatorname{vol}(P)[[V]]+\operatorname{vol}(Q)[[V]]\\ & =\sum_{k=0}^{n-0}  