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-rw-r--r--kernel/sign.ml2
-rw-r--r--proofs/refiner.ml2
2 files changed, 2 insertions, 2 deletions
diff --git a/kernel/sign.ml b/kernel/sign.ml
index 21c0ed8d25..77bb45bd2e 100644
--- a/kernel/sign.ml
+++ b/kernel/sign.ml
@@ -180,7 +180,7 @@ type names_context = name list
let add_name n nl = n::nl
let lookup_name_of_rel p names =
try List.nth names (p-1)
- with Invalid_argument _ -> raise Not_found
+ with Invalid_argument _ | Failure _ -> raise Not_found
let rec lookup_rel_of_name id names =
let rec lookrec n = function
| Anonymous :: l -> lookrec (n+1) l
diff --git a/proofs/refiner.ml b/proofs/refiner.ml
index ab7a4958ce..4ca9a06158 100644
--- a/proofs/refiner.ml
+++ b/proofs/refiner.ml
@@ -577,7 +577,7 @@ let top_goal_of_pftreestate pts =
let nth_goal_of_pftreestate n pts =
let goals = fst (frontier pts.tpf) in
try {it = List.nth goals (n-1); sigma = pts.tpfsigma }
- with Failure "nth" -> non_existent_goal n
+ with Invalid_argument _ | Failure _ -> non_existent_goal n
let descend n p =
match p.ref with