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-rw-r--r--plugins/nsatz/polynom.ml1
1 files changed, 1 insertions, 0 deletions
diff --git a/plugins/nsatz/polynom.ml b/plugins/nsatz/polynom.ml
index 45fcb2d25..b940ab89d 100644
--- a/plugins/nsatz/polynom.ml
+++ b/plugins/nsatz/polynom.ml
@@ -8,6 +8,7 @@
(* Recursive polynomials: R[x1]...[xn]. *)
open Utile
+open Errors
open Util
(* 1. Coefficients: R *)