I'w writing a paper in French (odd enough

When I choose the babel french package, the french word for proof (démonstration) doesn't appear in the compiled document, I get proof.
What's the solution here?
Thank you.
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Code: Select all
\documentclass[a4paper,10pt]{article}
\usepackage{amsthm}
\usepackage[french]{babel}
\begin{document}
\begin{proof}
text
\end{proof}
\end{document}
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