diff -r 60b31a24f1a6 -r efb799c5ed3c doc-src/Tutorial/Ifexpr/Makefile
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/doc-src/Tutorial/Ifexpr/Makefile	Wed Aug 26 17:27:27 1998 +0200
@@ -0,0 +1,3 @@
+
+Ifexpr.thy: prolog boolex value ifex valif bool2if normif norm normal end
+	cat prolog boolex value ifex valif bool2if normif norm normal end > Ifexpr.thy