amsmaths.inc: allow Theorems and the like to be empty, fixes bug 4304.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@21228 a592a061-630c-0410-9148-cb99ea01b6c8

diff --git a/lib/layouts/amsmaths.inc b/lib/layouts/amsmaths.inc
index c2baa7916e27ad0b5c5faf3b04bf29ecf6acbb16..499d60f5a02fa6a673a7c30a3761a53c106c99d3 100644 (file)
--- a/lib/layouts/amsmaths.inc
+++ b/lib/layouts/amsmaths.inc
@@ -58,6 +58,7 @@ Style Theorem
        LabelType             Counter
        LabelCounter          theorem
        LabelString           "Theorem \thetheorem."
+       KeepEmpty             1
        Font
          Shape               Italic
          Size                Normal