Greg Egan on Nostr: There are 6 contributions to the RRR component of Uw, coming from: +(UR)(UG)(UB) ...There are 6 contributions to the RRR component of Uw, coming from:+(UR)(UG)(UB)-(UR)(UB)(UG)+(UG)(UB)(UR)-(UG)(UR)(UB)+(UB)(UR)(UG)-(UB)(UG)(UR)These alternate betweenU_{11} U_{12} U_{13}and -U_{11} U_{12} U_{13}and so they sum to zero.