Linear algebra (Osnabrück 2024-2025)/Linear inhomogeneous system/Elimination/Echelon form and triangular form/Fact/Factreferencenumber

Theorem 5.5

Retrieved from "https://en.wikiversity.org/w/index.php?title=Linear_algebra_(Osnabrück_2024-2025)/Linear_inhomogeneous_system/Elimination/Echelon_form_and_triangular_form/Fact/Factreferencenumber&oldid=2673676"