To whom this may concern, I want to insert a blackboard bold 1 in lyx (For the identity matrix) (Unicode: 𝟙), but I can't seem to find anyway to do it. I tried changing the encoding to the various unicode types in the document settings (Document->Settings->Language-Encoding-Other), but all of the encoding types produce errors. In LaTeX, typically dsfont is used, but \(\mathds{1}\) produces no result (within lyx).
I could import the package in the preamble (Document>Settings>Preamble) via \usepackage{dsfont} (untested), but I would like to avoid the Evil Red Text. Your guidance on the matter is greatly appreciated, Cheers, -- -* Jonathan Horton*