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-rw-r--r--theories/nsatz/Nsatz.v1
1 files changed, 1 insertions, 0 deletions
diff --git a/theories/nsatz/Nsatz.v b/theories/nsatz/Nsatz.v
index b684775bb4..21f0f30140 100644
--- a/theories/nsatz/Nsatz.v
+++ b/theories/nsatz/Nsatz.v
@@ -60,6 +60,7 @@ exact Rplus_opp_r.
Defined.
Class can_compute_Z (z : Z) := dummy_can_compute_Z : True.
+#[global]
Hint Extern 0 (can_compute_Z ?v) =>
match isZcst v with true => exact I end : typeclass_instances.
Instance reify_IZR z lvar {_ : can_compute_Z z} : reify (PEc z) lvar (IZR z).