1. The problem statement, all variables and given/known data prove lim inf Sn= - Lim Sup (-Sn) 2. Relevant equations 3. The attempt at a solution I know how to run the proof when dealing with the sup and inf. But the limsup and liminf is another story. I wanna do it the same way by saying that limsup (-SN) >= Sn but i know I cannot say that. From what I gather all I can say that the Sups >= Limsup. But that does not help me relate it to the sequence itself. Need a push to get me going.