Theorem IsIdempotentElem.hasOrthogonalProjection_range

Modification history

2025-07-13 04:28
Mathlib/Analysis/InnerProductSpace/Adjoint.lean
feat(Analysis/InnerProductSpace/Adjoint): idempotent operator `T` is self-adjoint iff `(range T)ᗮ = ker T` (#26855) …
Deleted IsIdempotentElem.hasOrthogonalProjection_rangeView on Github →
2025-07-11 01:56
Mathlib/Analysis/InnerProductSpace/Adjoint.lean
feat(Analysis/InnerProductSpace/Projection): define `Submodule.starProjection` (#25958) …
Added IsIdempotentElem.hasOrthogonalProjection_rangeView on Github →