∀ (D : AlgebraicGeometry.Scheme.GlueData) (i : D.J),
  CategoryTheory.CategoryStruct.comp
      (D.toLocallyRingedSpaceGlueData.toSheafedSpaceGlueData.toPresheafedSpaceGlueData.toTopGlueData.ι i)
      D.isoCarrier.inv =
    (D.ι i).base