Theorems · Definition · geometry
Affine.Simplex.excenter
{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} → [NeZero n] → Affine.Simplex ℝ P n → Finset (Fin (n + 1)) → PThe excenter with signs determined by the given set of indices (for the empty set, this is
the incenter; for a singleton set, this is the excenter opposite a vertex). This is only
meaningful if s.ExcenterExists signs; otherwise, it is some arbitrary point.
- Defined in
- Mathlib.Geometry.Euclidean.Incenter
- Cited by
- 63 results in Mathlib
- Foundations
- Depth 187 from the axioms · uses propext, Classical.choice, Quot.sound
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites9
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- Realstatement and proof · cited by 25,697
- NormedAddCommGroupstatement and proof · cited by 15,752
- Finsetstatement and proof · cited by 13,712
- InnerProductSpacestatement and proof · cited by 3,523
- MetricSpacestatement and proof · cited by 1,684
- NormedAddTorsorstatement and proof · cited by 1,325
- Affine.Simplexstatement and proof · cited by 471
- EuclideanGeometry.Sphere.centerproof · cited by 181
- Affine.Simplex.exsphereproof · cited by 20
Cited by64
Results whose statement or proof uses this declaration.
- Affine.Simplex.touchpointproof · cited by 49
- Affine.Simplex.excenter_eq_affineCombinationstatement · cited by 7
- Affine.Simplex.ExcenterExists.dist_excenterstatement and proof · cited by 6
- Affine.Simplex.ExcenterExists.dist_excenter_eq_dist_excenterstatement · cited by 5
- Affine.Simplex.ExcenterExists.excenter_mem_affineSpan_rangestatement · cited by 5
- Affine.Simplex.ExcenterExists.isTangentAt_touchpointproof · cited by 5
- Affine.Simplex.ExcenterExists.excenter_notMem_affineSpan_facestatement and proof · cited by 4
- Affine.Simplex.ExcenterExists.sign_touchpointWeightsproof · cited by 4
- Affine.Simplex.ExcenterExists.touchpoint_injectiveproof · cited by 4
- Affine.Triangle.eq_excenter_of_two_zsmul_oangle_eqstatement and proof · cited by 3
- Affine.Simplex.ExcenterExists.excenter_mapstatement · cited by 3
- Affine.Simplex.ExcenterExists.excenter_ne_pointstatement and proof · cited by 3