Theorem LinearMap.IsIdempotentElem.commute_iff_of_isUnit

Modification history

2025-07-27 15:47
Mathlib/LinearAlgebra/Projection.lean
feat(LinearAlgebra/Projection): lemmas on projections and invariant submodules (#25874) …
Added LinearMap.IsIdempotentElem.commute_iff_of_isUnitView on Github →