OAI/Geometry/RuledCovering/SpecializedCover.lean
11 declarations, 0 contain sorry, 0 declared as axioms
- lemma
OAI.RuledApproximation.IsParallelogram.isCompactline 12 - lemma
OAI.RuledApproximation.Cylinder.enlarge_openline 26 - lemma
OAI.RuledApproximation.HasFiniteCover.open_enlargeline 39Source 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
- theorem
OAI.RuledApproximation.productCellline 63Source documentation
The product-cell endpoint follows from the stronger arbitrary-compact producer and exact open-base enlargement.
theorem productCell : ProductCellStatement := by …
- lemma
OAI.RuledApproximation.plane_charpolyline 70 - lemma
OAI.RuledApproximation.plane_hyperbolic_eigenvaluesline 77 - lemma
OAI.RuledApproximation.eigenvalue_le_normline 86 - lemma
OAI.RuledApproximation.eigenvalue_smulline 94 - theorem
OAI.RuledApproximation.orthogonalGridline 107Source 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 …
- lemma
OAI.RuledApproximation.OpenRectangleC2.smoothNearline 121 - theorem
OAI.RuledApproximation.logarithmicline 132Source 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 …