OAI/Geometry/EinsteinFour/ScalarSecondDerivativeMinimum.lean
1 declarations, 0 contain sorry, 0 declared as axioms
The elementary second-derivative test used by the scalar maximum principle, stated for the actual derivative functions along frame curves.
- theorem
OAI.PositiveEinsteinFour.Geometry.scalar_second_derivative_nonneg_at_local_minline 14