diff --git a/journal/JournalEric31 b/journal/JournalEric31
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-# Essais venant du MOOC
-
-## Si je veux écrire des maths
-
-This math is inline $`a^2+b^2=c^2`$.
-
-This is on a separate line
-
-```math
-a^2+b^2=c^2
-```
-
-```math
-\frac{4z^3}{16}
-```
-
-Cette expression $`\sum_{i=1}^n X_i`$ est inlinée.
-
-
-```math
-\frac{1}{n} \sum_{i=1}^n X_i
-```
-
-1. des fractions: $`\frac{4z^3}{16}`$
-2. 
\ No newline at end of file