Theorem LinearMap.IsIdempotentElem.ker_eq_range

Modification history

2025-07-11 01:56
Mathlib/LinearAlgebra/Projection.lean
feat(Analysis/InnerProductSpace/Projection): define `Submodule.starProjection` (#25958) …
Added LinearMap.IsIdempotentElem.ker_eq_rangeView on Github →