OAI/Analysis/CircleDomains/Sobolev/SobolevGraphNull.lean

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A continuous compact Sobolev scalar function sends volume-null base sets to graphs of zero two-dimensional Hausdorff measure. The proof uses only the constructed local energy covers and measure regularity.

  1. lemma OAI.CircleDomainRigidity.compact_sobolev_graph_null line 15