Am 14.09.2010 17:50, schrieb Jack Tanner:
Just tried using \mathbf (with all default document properties), and bold doesn't show up either in live preview or in PDF output.
What is your LyX version? Do you see bold equations, sec. 11.2 "Bold Formulas" of LyX's EmbeddedObjects manual that you find in the Help menu?
regards Uwe