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-rw-r--r--flocq/Core/Fcore_digits.v3
1 files changed, 2 insertions, 1 deletions
diff --git a/flocq/Core/Fcore_digits.v b/flocq/Core/Fcore_digits.v
index 7d1d490a..53743035 100644
--- a/flocq/Core/Fcore_digits.v
+++ b/flocq/Core/Fcore_digits.v
@@ -853,7 +853,8 @@ Proof.
intros n Zn.
rewrite <- (Zdigits_abs n).
assert (Hn: (0 < Zabs n)%Z).
-destruct n ; now easy.
+destruct n ; [|easy|easy].
+now elim Zn.
destruct (Zabs n) as [|p|p] ; try easy ; clear.
simpl.
generalize 1%Z (radix_val beta) (refl_equal Lt : (0 < 1)%Z).