From befe71d4d59e91d9949f1e780f30793c50622987 Mon Sep 17 00:00:00 2001
From: Claude Meny <claude.meny@irap.omp.eu>
Date: Sun, 30 Aug 2020 11:00:13 +0200
Subject: [PATCH] Update textbook.fr.md

---
 .../04.reference-frames-coordinate-systems/textbook.fr.md     | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/04.reference-frames-coordinate-systems/textbook.fr.md b/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/04.reference-frames-coordinate-systems/textbook.fr.md
index 2f9f9007d..05598b51e 100644
--- a/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/04.reference-frames-coordinate-systems/textbook.fr.md
+++ b/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/04.reference-frames-coordinate-systems/textbook.fr.md
@@ -298,8 +298,8 @@ $`A=\displaystyle\iint_{S_{\smallsmile}} dA`$<br>
 [FR] Cette différence d'écriture est très importante. Par exemple en électromagnétisme :<br>
 [EN] This difference in writing is very important. For example in electromagnetism :<br>
 $`\forall S_{\circ}  \oiint_{S_{\smallsmile}} \overrightarrow{B}\cdot\overrightarrow{dA}=0`$, 
-en general $`\iint_{S_{\smallsmile}} \overrightarrow{B}\cdot\overrightarrow{dA}\cancel{=} 0`$
-$`\iint_{S_{\smallsmile}} \overrightarrow{B}\cdot\overrightarrow{dA}\not= 0`$
+en general $`\iint_{S_{\smallsmile}} \overrightarrow{B}\cdot\overrightarrow{dA}\,\cancel{=}\, 0`$
+