# Böttcher's Proof of the Pythagorean Theorem

The proof by J. E. Böttcher that is referred to as Proof #36 in the collection of proofs of the Pythgorean proposition has two variants. One is quoted by Nelsen, the other can be found in [Stein, p. 74]:

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### Reference

- R. B. Nelsen,
*Proofs Without Words II*, MAA, 2000 - S. K. Stein,
*Mathematics: The Man-Made Universe*, Dover, 1999, p. 74

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