Learning LaTeX

Font Size
\tiny
\scriptsize
\footnotesize
\small
\normalsize
\large

Font commands
Family
\textrm{text}
\texttt{text} : typewriter
\textsf{text} : san serif

Shape
\textup{text}
\textit{text}
\textsl{text}
\textsc{text}

Series
\textmd{text}
\textbf{text}

Default
\textnormal{text}

Emphasis
\emph{text}


Quotations
\begin{quote} text \end{quote}

Lists
\begin{itemize} list text \end{itemize}
\begin{enumerate} list text \end{enumerate}
\begin{desciption} list text \end{description}

\begin{description}
\item[purpose] This environment
\item[example] An exmaple is ...
\item[other uses] Good
\end{description}

\begin{enumerate}[{Case} A]
\item Witness tells the truth
\item Witness is lying
\end{enumerate}

Theorem

\newtheorem{theorem}{Theorem}
\newtheorem{axiom}{Axiom}[chapter]
....
\begin{theorem}[Balzano--Weierstrass] Every ... \end{theorem}
\begin{axiom} The natural numbers form ... \end{axiom}

Text in Boxes
\mbox{text}
\fbox{text}

\raisebox{1ex}{high}
\raisebox{-1ex}{low}

\shadowbox{text}
\doublebox{text}
\ovalbox{text}
\Ovalbox{text}

Footnote
\footnote{footnote_text}