OAI/Analysis/CircleDomains/Sobolev/IncrementDerivativeBound.lean

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Increment domination passes to derivatives. The integral criterion then yields the linewise weak-gradient bound used by the barrier.

  1. theorem OAI.CircleDomainRigidity.abs_derivative_le_of_increment_domination line 15
  2. theorem OAI.CircleDomainRigidity.ae_abs_deriv_le_of_integral_bound line 24