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\begin{omgroup}[id=sec.contfuncs]{Continuous Functions}
\begin{module}[id=continuous]
\importmodule[\backmods{functions}]{functions}
\importmodule[\backmods{reals}]{reals}
\symdef{continuousfunctions}[2]{\mathcal{C}^0(#1,#2)}
\abbrdef{ContRR}[2]{\continuousfunctions\RealNumbers\RealNumbers}
\begin{definition}
  A function $\fun{f}\RealNumbers\RealNumbers$ is called {\defin{continuous}} at
  $\inset{x}\RealNumbers$, iff for all $\epsilon>0$ there is a $\delta>0$, such that
  $\absval{f(x)-f(y)}<\epsilon$ for all $\absval{x-y}<\delta$
\end{definition}
\end{module}
\end{omgroup}
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