fix

diff --git a/helm/matita/tests/interactive/drop.ma b/helm/matita/tests/interactive/drop.ma
new file mode 100644 (file)
index 0000000..e0e302e
--- /dev/null
+++ b/helm/matita/tests/interactive/drop.ma
@@ -0,0 +1,6 @@
+alias id "O" = "cic:/Coq/Init/Datatypes/nat.ind#xpointer(1/1/1)".
+alias num (instance 0) = "natural number".
+alias symbol "eq" (instance 0) = "leibnitz's equality".
+alias symbol "plus" (instance 0) = "natural plus".
+theorem a : O + 1 = 1.
+drop.