OAI/Combinatorics/ContingencyTables/Dense/DenseInteriorVolume.lean
4 declarations, 0 contain sorry, 0 declared as axioms
Positive volume of the actual dense completion polytope
- def
OAI.ContingencyTables.DenseAffine.normalizedEntryline 15 - theorem
OAI.ContingencyTables.DenseAffine.normalizedEntry_changeline 20 - theorem
OAI.ContingencyTables.DenseAffine.dense_change_below_interior_slackline 42 - theorem
OAI.ContingencyTables.DenseAffine.dense_feasible_volume_posline 57Source documentation
A full open unit box around the constructed interior point is feasible. Consequently the feasible polytope has positive Lebesgue volume, including the zero-dimensional convention.
theorem dense_feasible_volume_pos (R : Option I → ℕ) (P : Option J → ℕ) (d : ℕ) (hd : 14 ≤ d) (hR : ∀ i, d ^ 12 ≤ R i) (hP : ∀ j, d ^ 12 ≤ P j) (hRmax : ∀ i, R (some i) ≤ R none) (hPmax : ∀ j, P (some j) ≤ P none) (hdimR : Fintype.card (Option I) ≤ d) (hdimP : Fintype.card (Option J) ≤ d) (hfree : Fintype.card (I × J) ≤ d) (htotal : ∑ i, R i = ∑ j, P j) : 0 < volume {u : I × J → ℝ | Feasible R P d u} := by …