From b1a9b3c33e91cffabc7ad68d7fdeadd18f384044 Mon Sep 17 00:00:00 2001
From: Théo Zimmermann
Date: Wed, 10 Apr 2019 09:25:51 +0200
Subject: Improve SProp error message to mention the Allow StrictProp flag.

And document the error message.
---
 doc/sphinx/addendum/sprop.rst | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'doc')

diff --git a/doc/sphinx/addendum/sprop.rst b/doc/sphinx/addendum/sprop.rst
index 015b84c530..c0c8c2d79c 100644
--- a/doc/sphinx/addendum/sprop.rst
+++ b/doc/sphinx/addendum/sprop.rst
@@ -19,6 +19,9 @@ known as strict propositions). To use :math:`\SProp` you must pass
    initial value depends on whether you used the command line
    ``-allow-sprop``.
 
+.. exn:: SProp not allowed, you need to Set Allow StrictProp or to use the -allow-sprop command-line-flag.
+   :undocumented:
+
 .. coqtop:: none
 
    Set Allow StrictProp.
-- 
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