Georg Baum wrote: > Yes, it is needed. Guess why the box was introduced? because it is
impossible to tell where exactly your are without it. It makes a big
difference if you enter the next character before or after the \mathbf in
\mathbf{\bigg xxx}}. You cannot distinguis these two positions without the
box.
copy-pasting
\mathbf{\bigg xxx}}
in a math inset is a very effective way to crash lyx btw...
