Official Mathlib source

norm_add_sq_eq_norm_sq_add_norm_sq_iff_real_inner_eq_zero

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/Analysis/InnerProductSpace/Basic.lean:554
SHA-256: sha256:5b95dccc6230b9251744b12292942814523bf36b7cb41bd50c31d00a99296f3e
Verified bytes: 46,163

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.