On Wed, 2003-03-05 at 23:14, Andre Poenitz wrote: > On Wed, Mar 05, 2003 at 04:28:27PM -0800, Ling Li wrote: > > The environment "cases" requires amsmath. Patch to math_casesinset.[Ch] > > and ChangeLog attached. The patch is against 1.3.1cvs. > > \cases is valid plain TeX and is used by some people as such. I guess \cases and the cases environment are different, though they can do the same thing. If MathCasesInset also takes care of \cases, then I would admit the auto-inclusion of amsmath may not be proper. However, it seems to me this is not the case. (I might be wrong since I am really not familiar with LyX code.)
I also tried typing \cases in LyX 1.3.0. LyX converted it to the cases environment, which can not be compiled without amsmath. So I guess the existence of \cases doesn't matter. --Ling
