deletions | additions       diff --git a/layout.md b/layout.md  index 76a4611..cebf1d7 100644  --- a/layout.md  +++ b/layout.md 
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chapter_Introd_a_las_Ec__.tex  chapter_Ec_Dif_de_1er__.tex  chapter_Ec_Dif_de_orden__.tex  chapter_Transformada_de_Laplace_y__.tex chapter_Problemas_de_Frontera_Sturm__.tex