Fixed missing log bases in lecture9
Fixed missing log bases in lecture9

BackofenLab/AlgoDat,BackofenLab/AlgoDat,TobiasFaller/AlgoDat,TobiasFaller/AlgoDat,TobiasFaller/AlgoDat,TobiasFaller/AlgoDat,TobiasFaller/AlgoDat,BackofenLab/AlgoDat,BackofenLab/AlgoDat,BackofenLab/AlgoDat