-given chaotic map function. Then, we found a condition that allow to
-check whether the iterations induced by a function are chaotic or not,
-and thus if a chaotic map is obtained. Thanks to this condition our
-approach is not limited to a particular function. In the dual case, we
-show that checking if a neural network is chaotic consists in
+given chaotic map function. Secondly, we found a condition that allow
+to check whether the iterations induced by a function are chaotic or
+not, and thus if a chaotic map is obtained. Thanks to this condition
+our approach is not limited to a particular function. In the dual
+case, we show that checking if a neural network is chaotic consists in