Official upstream source

Nat.sum_four_squares

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Pinned origin

Package: mathlib
Repository: https://github.com/leanprover-community/mathlib4
Commit: 5e932f97dd25535344f80f9dd8da3aab83df0fe6
Source path: Mathlib/NumberTheory/SumFourSquares.lean:199
SHA-256: sha256:1bc309254aa0aabc39c9802eb6ec2358468f7b4d4cf13efdde8888995558eb4a
Verified bytes: 10,569

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