\documentclass[minion]{homework}
\usepackage{cmacros}
\usepackage{graphicx}
\usepackage[all,cmtip]{xy}
\usepackage{wf}
\def\net<#1>{\left<#1\right>}

\newcommand{\bbB}{\mathbb{B}}
\doclabel{Math F651: Homework 13}
\docdate{Due: May 4, 2011}
\begin{document}
\begin{aproblems}
\aproblem Show that a space is normal if and only if
it satisfies the conclusion of the Urysohn lemma 
if and only if it satisfies the conclusion
of the Tietze extension theorem.

\aproblem Let $\mathcal B$ be a basis for the topology on $X$.
Suppose every cover of $X$ by elements of $\mathcal B$ has a finite
subcover.  Show that $X$ is compact.  Prove this without recourse to Alexander's Lemma.

\aproblem Munkres 37.4

\aproblem Munkres 51.2

\aproblem Munkres 52.4 (Wait until after Monday)

\aproblem Munkres 52.3 (Wait until after Monday)
\end{aproblems}
\end{document}