Problem with Delete

What's wrong with this?

• Delete(k): $T[\mbox{Find}(k)] \leftarrow \mbox{empty}$.

Alternative:

• Delete(k): $T[\mbox{Find}(k)] \leftarrow \mbox{deleted}$.
• Insert(k): Let $j = \min_i (T[h'(k,i)] = \mbox{empty\ or\ deleted})$.$T[h'(k,j)] \leftarrow k$.

Why is Find still ok?