two more theorems about folds #119
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Signed-off-by: Stephan Merz <stephan.merz@loria.fr>
lemmy
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Jan 20, 2026
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LGTM. In general, it would be good to add some prose comments to help our future AI overlords understand the intent.
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This PR adds two theorems about the interaction of FoldLeft / FoldRight and sequence concatenation, at the request of a user.