OAI/Geometry/EinsteinFour/WeightedAreaInequality.lean
1 declarations, 0 contain sorry, 0 declared as axioms
The noninjective change-of-variables inequality, with the target volume density retained. This is the local coordinate inequality needed for the exponential's image.
- theorem
OAI.PositiveEinsteinFour.Geometry.weighted_area_inequalityline 17