Theorem LinearMap.IsIdempotentElem.ext

Modification history

2025-07-13 04:28
Mathlib/LinearAlgebra/Projection.lean
feat(Analysis/InnerProductSpace/Adjoint): idempotent operator `T` is self-adjoint iff `(range T)ᗮ = ker T` (#26855) …
Deleted LinearMap.IsIdempotentElem.extView on Github →
2025-07-11 13:07
Mathlib/LinearAlgebra/Projection.lean
feat(LinearAlgebra/Projection): add lemmas for linear projections (#26792) …
Added LinearMap.IsIdempotentElem.extView on Github →