Theorem Matrix.IsLeadingEntry.row_ne_zero

Modification history

2026-07-30 16:24
Mathlib/LinearAlgebra/Matrix/Echelon/Basic.lean
feat(LinearAlgebra/Matrix): add definitions and theory for the echelon form and pivots of matrices (#42236) …
Added Matrix.IsLeadingEntry.row_ne_zeroView on Github →