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<tag>1</tag>
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<tag role="typerefnum">§1</tag>
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<title><tag close=" ">1</tag>Compositions</title>
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<tags>
<tag>2</tag>
<tag role="refnum">2</tag>
<tag role="typerefnum">§2</tag>
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<title><tag close=" ">2</tag>Implicit lambdas?</title>
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