From 160ac52f520c5d77cde8fc5734839de54995e165 Mon Sep 17 00:00:00 2001
From: Olivier Laurent
Date: Sun, 19 Apr 2020 10:53:28 +0200
Subject: remove useless hypothesis in NoDup_Permutation_bis (thanks to new
 NoDup_incl_NoDup)

---
 doc/changelog/10-standard-library/12119-issue12119.rst | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 doc/changelog/10-standard-library/12119-issue12119.rst

(limited to 'doc')

diff --git a/doc/changelog/10-standard-library/12119-issue12119.rst b/doc/changelog/10-standard-library/12119-issue12119.rst
new file mode 100644
index 0000000000..42672b1465
--- /dev/null
+++ b/doc/changelog/10-standard-library/12119-issue12119.rst
@@ -0,0 +1,5 @@
+- **Changed:**
+  new lemma ``NoDup_incl_NoDup`` in ``List.v``
+  to remove useless hypothesis `NoDup l'` in ``Sorting.Permutation.NoDup_Permutation_bis``
+  (`#12119 <https://github.com/coq/coq/pull/12119>`_,
+  by Olivier Laurent).
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