IL LATO MIGLIORE DELLA MUTANDINA IN LATEX

I have two sections which I'd like to separate by an empty line. Every time I press Enter, LyX removes that empty line between paragraphs. How do I prevent this?and save the files Per mezzo di the default encoding for your machine. You cannot use XeLaTeX or LuaLaTeX with such files, however.Note that some of the symbols require loading of the amssy