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I'm using the \uncover and \only commands in a Beamer file, but I want to be able to then cover up things again as I progress through the slides. Here is an example where I have A implies B implies C showing up piece-by-piece using the \uncover command. After this is done, I would like to re-cover the portion that says $B \Longrightarrow C$ leaving $A \Longrightarrow C$ in the end. How would I do this?

\documentclass[24pt]{beamer}

\usepackage{amssymb,amscd,amsthm,amsmath,graphicx,color}
\usepackage{booktabs}
\usepackage{color}
\usepackage[color,matrix,arrow]{xy}
\usepackage{ragged2e}
\usepackage[scale=2]{ccicons}
\usepackage{multicol}

\begin{document}

\begin{frame}
\pause
\center{\uncover<1->{$A$} \uncover<2->{$\Longrightarrow$} \uncover<3->{$B$} \uncover<4->{$\Longrightarrow$} \uncover<5->{$C$}}
\end{frame}


\end{document}
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like this?

\documentclass[24pt]{beamer}

\usepackage{amssymb,amscd,amsthm,amsmath,graphicx,color}
\usepackage{booktabs}
\usepackage{color}
\usepackage[color,matrix,arrow]{xy}
\usepackage{ragged2e}
\usepackage[scale=2]{ccicons}
\usepackage{multicol}

\begin{document}

\begin{frame}
\pause
\centering
\uncover<1->{$A$} \uncover<2->{$\Longrightarrow$} \uncover<3-5>{$B$} \uncover<4-5>{$\Longrightarrow$} \uncover<5-6>{$C$}
\end{frame}


\end{document}

enter image description here

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