The problem is that you are in math-text-mode at the moment. The greek lettershave to be in math-math mode. That is \Tree [.$\sigma$ $\mu$ $\mu$ ]
oh, duh... okay, it's going in the linguist-lyx wiki. maria
The problem is that you are in math-text-mode at the moment. The greek lettershave to be in math-math mode. That is \Tree [.$\sigma$ $\mu$ $\mu$ ]
oh, duh... okay, it's going in the linguist-lyx wiki. maria