I just installed LyX and have no prior experience using LaTeX. I have the following problem:
I used MiKTeX to install a package. (Or style or whatever it is: bussproofs.sty. You can make natural deduction trees etc. using it.)
After this I also used the "reconfigure" button in Tools in LyX. And restarted LyX.
But when I try to view this in LyX I get the error "Undefined control sequence", actually three of these.
What am I doing wrong, how can I use the package in LyX?
I'm running Vista and LyX 2.0.5
Last edited by cgnieder on Tue Dec 11, 2012 11:31 am, edited 1 time in total.
Since you installed the package using MikTeX, it should be ready for use. To load a package, you use \usepackage command. So, in LyX, all you have to do is to load the package by:
1. Going to Document > Settings > Preamble
2. Typing in the preamble the following: