Theorem Matrix.PosSemidef.dotProduct_mulVec_zero_iff

Modification history

2026-09-30 15:24
Mathlib/LinearAlgebra/Matrix/PosDef.lean
feat(Algebra/Star/Basic): class for `star x * x = 0 → x = 0` (#44080) …
Modified Matrix.PosSemidef.dotProduct_mulVec_zero_iffView on Github →
2026-09-09 15:18
Mathlib/Analysis/Matrix/Order.lean
chore(LinearAlgebra/Matrix/PosDef): generalize `PosSemidef.dotProduct_mulVec_zero_iff` (#43617) …
Modified Matrix.PosSemidef.dotProduct_mulVec_zero_iffView on Github →
2025-10-08 02:34
Mathlib/Analysis/Matrix/Order.lean
chore(LinearAlgebra/Matrix/PosDef): deprecate `PosSemidef.sqrt` in favour of `CFC` (#29896) …
Modified Matrix.PosSemidef.dotProduct_mulVec_zero_iffView on Github →
2024-02-04 23:05
Mathlib/LinearAlgebra/Matrix/PosDef.lean
chore(LinearAlgebra,BigOperators): drop some decidability assumptions (#10237) …
Modified Matrix.PosSemidef.dotProduct_mulVec_zero_iffView on Github →
2023-12-18 20:33
Mathlib/LinearAlgebra/Matrix/PosDef.lean
feat(LinearAlgebra/Matrix/PosDef): unique positive semidef square root (#8809) …
Added Matrix.PosSemidef.dotProduct_mulVec_zero_iffView on Github →