[Tex/LaTex] Blank space between paragraphs

Question

I am trying to learn how to use Texmaker (just for the record, I don't know a single thing about programming or Latex) and I am having some difficulty to create space between paragraphs or between lines. For example, I start my document with:

\documentclass[11pt]{article}
\begin{document}

Semisimple modules

Theorem...

\end{document}

I want to leave an empty line between "Semisimple modules" and "Theorem…", how can I do this?

Remember that I am a completely newbie with Texmaker (and with programs in general…) so please be patient with me if I ask too obvious things or if I make silly mistakes. Thanks in advance.

Answer 1

You want to give structure to your document. Here's an example.

\documentclass[11pt]{article}
\usepackage{amsthm}
\newtheorem{thm}{Theorem}[section]

\begin{document}

\section{Semisimple modules}

A module is said to be \emph{semisimple} if it equals the sum
of its simple submodules. Note that the zero module is semisimple,
being the sum of the (empty) family of its simple submodules.

A ring is called \emph{semisimple} if it is semisimple as a right
module over itself. We shall see later that right semisimple is
the same as left semisimple, so we can omit the indication of the
side.

\begin{thm}
A module is semisimple if and only if it is a direct sum of
simple submodules.
\end{thm}

\begin{proof}
It's obvious, isn't it?
\end{proof}

\end{document}

As you see, the space above and below the statement is automatically added.