OAI/Geometry/RCD/Coordinates/TwoFrozenPairingVariation.lean
1 declarations, 0 contain sorry, 0 declared as axioms
A pairing derivative from both frozen scalar pairings
One Lipschitz-order increment and continuity of the other factor make the mixed increment negligible. Neither factor needs a vector derivative.
- theorem
OAI.RegularPointCoordinates.hasDerivAt_inner_of_two_frozenline 16