Exercise 1.17 solved#65
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I forgot to create a new branch. So exercise 1.18 is also in this PR. |
Owner
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I will accept and make a local review. |
Owner
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I simplified the proofs, added some comments, and renamed the theorem. |
Owner
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Thank you |
Contributor
Author
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Thank you. I don't know if you also reviewed exercise 1.18, but it's solved too. Just forgot to create a new PR for it. |
Owner
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@GabrielJP314, thank you for calling my attention to 1.18. I added a docstring. |
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Proving that$\texttt{replace} \circ \mathrm{foldr}\; f\; 0 = \mathrm{foldr}\; f\; 0$ using the more restricted proviso of the fusion law for $\texttt{foldr}$ .