# How to do subsections for a homework problem?

I have a homework question and I have \section*{Problem 1} which has parts (a), (b)... how do I properly section each part?

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An enumerate environment? –  Gonzalo Medina Apr 22 '14 at 13:39
This depends on what you want to obtain, and on how long these parts are: single sentences ? several paragraphs ? Please post more detail. –  Joce Apr 22 '14 at 13:42
Well the question involves determining if 6 different mappings are homomorphisms, describing their kernals and then specifying the type or morphism (isomorphism, epimorphism, monomorphism). –  spitfiredd Apr 22 '14 at 14:47
@spitfiredd: Please specify the typesetting problems in more detail. Otherwise the question becomes a candidate for closing because of "unclear what you are asking". –  Heiko Oberdiek Apr 22 '14 at 16:09
Welcome to TeX.SE. It would be helpful if you composed a fully compilable MWE including \documentclass and the appropriate packages that sets up the problem, and shows what you tried. This also helps to make it clearer what you are asking, as sometimes an alternate solutions can be proposed. –  Peter Grill Apr 22 '14 at 17:06

Given the description of the requirement given by the OP in his comment, I'd suggest a simple enumerate environment, in which the labels have been changed with the help of the enumitem package to produce the required labeling; something along these lines:

\documentclass{article}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{enumitem}

\begin{document}

\section*{Problem 1}
\begin{enumerate}[label=(\alph*)]
\item The mapping $f\colon \mathbb{Z}\to \mathbb{Z}$ given by $f(x)=x+2$ is not a group homomorphism of additive groups because $f(0)=2\neq 0$.
\item The mapping $f\colon \mathbb{R}\to \mathbb{Q}$ given by...
\end{enumerate}

\end{document}


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use

\subsection*{a}

part a text

\subsection*{b}

part b text

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hard coding enumerations is generally bad practice –  cmhughes Apr 22 '14 at 21:55