OAI/Geometry/RuledCovering/SpecializedCover.lean

GitHub source file

11 declarations, 0 contain sorry, 0 declared as axioms

  1. lemma OAI.RuledApproximation.IsParallelogram.isCompact line 12
  2. lemma OAI.RuledApproximation.Cylinder.enlarge_open line 26
  3. lemma OAI.RuledApproximation.HasFiniteCover.open_enlarge line 39

    Source documentation

    Compact parallelogram covers admit bounded open perpendicular bases with any additional positive error. No portion of the closed ruled family is discarded.

    lemma HasFiniteCover.open_enlarge {S : Set Space} {A eps : ℝ}
        (hc : HasFiniteCover Cylinder.parallelogram S A) (heps : 0 < eps) :
        HasFiniteCover Cylinder.openBounded S (A+eps) := by
    …

    Mentions: OAI.RuledApproximation.Space, OAI.RuledApproximation.HasFiniteCover, OAI.RuledApproximation.Cylinder.parallelogram, OAI.RuledApproximation.Cylinder.openBounded

  4. theorem OAI.RuledApproximation.productCell line 63

    Source documentation

    The product-cell endpoint follows from the stronger arbitrary-compact producer and exact open-base enlargement.

    theorem productCell : ProductCellStatement := by
    …

    Mentions: OAI.RuledApproximation.ProductCellStatement

  5. lemma OAI.RuledApproximation.plane_charpoly line 70
  6. lemma OAI.RuledApproximation.plane_hyperbolic_eigenvalues line 77
  7. lemma OAI.RuledApproximation.eigenvalue_le_norm line 86
  8. lemma OAI.RuledApproximation.eigenvalue_smul line 94
  9. theorem OAI.RuledApproximation.orthogonalGrid line 107

    Source documentation

    The orthogonal-grid endpoint needs no new cover construction: its norm bound implies precisely the two-eigenvalue condition of the general theorem.

    theorem orthogonalGrid : OrthogonalGridStatement := by
    …

    Mentions: OAI.RuledApproximation.OrthogonalGridStatement

  10. lemma OAI.RuledApproximation.OpenRectangleC2.smoothNear line 121
  11. theorem OAI.RuledApproximation.logarithmic line 132

    Source documentation

    The logarithmic-cell endpoint follows with its exact velocity scaling and orthonormal-coordinate weight, while its boundary hypothesis remains local.

    theorem logarithmic : LogarithmicStatement := by
    …

    Mentions: OAI.RuledApproximation.LogarithmicStatement