Equation 10b

[mmuratarat]

There is something I cannot comprehend fully. In your Equation 10b where did $y_{t_{l}} \hat{y_{t_{l}}}$ go? $y_{t}$ is a one-hot vector consisting of 0s and 1s, which means $l$-th element of $y_{t}$ can be either 0 or 1. If you multiple $y_{t_{l}}$ with $\hat{y_{t_{l}}}$ the result can either be 0 or $y_{t_{l}} \hat{y_{t_{l}}}$ itself, is that correct?