--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Admin/BUGS Mon Dec 08 13:56:49 1997 +0100
@@ -0,0 +1,11 @@
+
+Isabelle BUGS -- history of reported faults
+===========================================
+
+1. Symptom: hyp_subst_tac does nothing if the selected equality involves type
+ unknowns. Cause: it uses the simplifier, which ignores such equalities.
+ Fix: check for type unknowns in hypsubst/inspect_pair; change interface
+ function dest_eq to return the type of the equality. (lcp, 5/11/97)
+
+2. Symptom: read_instantiate_sg has problems instantiating types in some
+ simultaneous instantiations (Message-id: <199710301432.PAA20594@sirius.Informatik.Uni-Bremen.DE> on isabelle-users)