I want to be able to make several symbols bold by grouping them within some sort of bolding command. I can make a single symbol bold by using (for example)
\boldsymbol \phi
but I want to be able to bold several symbols, something like:
{\boldsymbol \phi \vee \psi}
This doesn't work. I've tried \bf
in a group as well, which Mathjax says it supports, but it doesn't.
How can I achieve this, I don't want to have to put \boldsymbol
on every single symbol!