Official Mathlib source

Nat.eq_sq_add_sq_iff

This declaration comes from Mathlib. Follow the official immutable link below to inspect the exact upstream source; ProofAtlas does not mirror or claim authorship of it.

Exact upstream reference

Package: mathlib
Repository: https://github.com/leanprover-community/mathlib4
Commit: 5e932f97dd25535344f80f9dd8da3aab83df0fe6
Source path: Mathlib/NumberTheory/SumTwoSquares.lean:222
SHA-256: sha256:f23aeb016962f8ec314e32f2157b4bee25e8f02264f96e350c06bafd53e94d74
Verified bytes: 11,639

Open source in Mathlib

Why there is no source download here

ProofAtlas links to the official immutable Mathlib source. It does not mirror the Lean file, relicense upstream work, publish a ProofAtlas source archive, or claim a first-party source footprint.