Theorem QuadraticForm.ne_zero_of_not_isOrtho_self

Modification history

2024-07-13 17:36

Mathlib/LinearAlgebra/QuadraticForm/Basic.lean

refactor(LinearAlgebra/QuadraticForm/Basic) : Generalise `QuadraticForm` to `QuadraticMap` (#7569) …

Deleted QuadraticForm.ne_zero_of_not_isOrtho_self View on Github →

2023-12-26 10:38

Mathlib/LinearAlgebra/QuadraticForm/Basic.lean

feat: define `QuadraticForm.IsOrtho` as `Q (x + y) = Q x + Q y` (#9141) …

Added QuadraticForm.ne_zero_of_not_isOrtho_self View on Github →