--- a/lib/texinputs/isabellesym.sty Sun Apr 10 17:19:03 2005 +0200
+++ b/lib/texinputs/isabellesym.sty Sun Apr 10 17:20:03 2005 +0200
@@ -183,6 +183,10 @@
\newcommand{\isasymleftharpoonup}{\isamath{\leftharpoonup}}
\newcommand{\isasymrightharpoonup}{\isamath{\rightharpoonup}}
\newcommand{\isasymrightleftharpoons}{\isamath{\rightleftharpoons}}
+\newcommand{\isasymdownharpoonleft}{\isamath{\downharpoonleft}} %requires amssymb
+\newcommand{\isasymdownharpoonright}{\isamath{\downharpoonright}} %requires amssymb
+\newcommand{\isasymupharpoonleft}{\isamath{\upharpoonleft}} %requires amssymb
+\newcommand{\isasymupharpoonright}{\isamath{\upharpoonright}} %requires amssymb
\newcommand{\isasymleadsto}{\isamath{\leadsto}} %requires amssymb
\newcommand{\isasymup}{\isamath{\uparrow}}
\newcommand{\isasymUp}{\isamath{\Uparrow}}