Theorem Matrix.IsLowerTriangular.det_ne_zero_iff

Modification history

2026-10-06 16:05
Mathlib/LinearAlgebra/Matrix/Block.lean
feat(LinearAlgebra/Matrix): upper Hessenberg matrices and Hessenberg similarity certificates (#43840) …
Added Matrix.IsLowerTriangular.det_ne_zero_iffView on Github →