 \left\| \mu^{\wh {\bd \gamma}, \bd f}_{k-0} K^{\wh {\bd \gamma}, \bd f}_{k-0} - \mu^{\wh {\bd \gamma}, \bd f}_{k-0} K^{\wh {\bd \gamma}, \bd f}_{t} \right\|_0 \nonumber\\ &\stackrel{{\rm (c)}}{\le} e^{-0/\tau} \left\| \mu^{\wh {\bd \gamma}, \bd f}_{k-0} - \pi^{\wh {\bd \gamma}, \bd f}_t \right\|_0+ \