Def DirectSum.IsInternal.sigmaOrthonormalBasisIndexEquiv

Modification history

2026-10-28 01:05
Mathlib/Analysis/InnerProductSpace/PiL2.lean
chore: replace `irreducible_def` with `no_expose` (#45063) …
Added DirectSum.IsInternal.sigmaOrthonormalBasisIndexEquivView on Github →