Affine.Simplex.ExcenterExists.excenter_notMem_affineSpan_face
∀ {V : Type u_1} {P : Type u_2} [inst : NormedAddCommGroup V] [inst_1 : InnerProductSpace ℝ V] [inst_2 : MetricSpace P]
[inst_3 : NormedAddTorsor V P] {n : ℕ} [inst_4 : NeZero n] {s : Affine.Simplex ℝ P n} {signs : Finset (Fin (n + 1))},
s.ExcenterExists signs →
∀ {fs : Finset (Fin (n + 1))} {m : ℕ} (hfs : fs.card = m + 1),
m ≠ n → s.excenter signs ∉ affineSpan ℝ (Set.range (s.face hfs).points)- Defined in
- Mathlib.Geometry.Euclidean.Incenter
- Cited by
- 4 results in Mathlib
- Foundations
- Depth 189 from the axioms · uses propext, Classical.choice, Quot.sound
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites33
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- Setproof · cited by 53,352
- Realstatement and proof · cited by 25,697
- NormedAddCommGroupstatement and proof · cited by 15,752
- Finsetstatement and proof · cited by 13,712
- SetLike.coeproof · cited by 8,199
- Set.imageproof · cited by 5,609
- Set.rangestatement and proof · cited by 4,705
- InnerProductSpacestatement and proof · cited by 3,523
- Finset.univproof · cited by 3,473
- Finset.cardstatement and proof · cited by 2,327
- le_reflproof · cited by 2,061
- MetricSpacestatement and proof · cited by 1,684
Cited by4
Results whose statement or proof uses this declaration.
- Affine.Simplex.ExcenterExists.excenter_ne_pointproof · cited by 3
- Affine.Simplex.ExcenterExists.excenter_notMem_affineSpan_pairproof · cited by 1
- Affine.Simplex.ExcenterExists.excenter_notMem_affineSpan_faceOppositeproof · cited by 1
- Affine.Simplex.incenter_notMem_affineSpan_faceproof · cited by 0