Mathlib Map

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)) → P

The 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
Assumes
NormedAddCommGroupInnerProductSpaceMetricSpaceNormedAddTorsorNeZero

Around this declaration

Dashed lines are statement dependencies; solid lines are citations in proofs.

Affine.Simplex.touchpoint · cited by 49Simplex.touchpointAffine.Simplex.excenter_eq_affineCombination · cited by 7Simplex.excenter_eq_affin…Affine.Simplex.ExcenterExists.dist_excenter · cited by 6ExcenterExists.dist_excen…Affine.Simplex.ExcenterExists.dist_excenter_eq_dist_excenter · cited by 5ExcenterExists.dist_excen…Affine.Simplex.ExcenterExists.excenter_mem_affineSpan_range · cited by 5ExcenterExists.excenter_m…Affine.Simplex.ExcenterExists.isTangentAt_touchpoint · cited by 5ExcenterExists.isTangentA…Affine.Simplex.ExcenterExists.excenter_notMem_affineSpan_face · cited by 4ExcenterExists.excenter_n…Affine.Simplex.ExcenterExists.sign_touchpointWeights · cited by 4ExcenterExists.sign_touch…Affine.Simplex.ExcenterExists.touchpoint_injective · cited by 4ExcenterExists.touchpoint…Affine.Triangle.eq_excenter_of_two_zsmul_oangle_eq · cited by 3Triangle.eq_excenter_of_t…Affine.Simplex.ExcenterExists.excenter_map · cited by 3ExcenterExists.excenter_m…Affine.Simplex.ExcenterExists.excenter_ne_point · cited by 3ExcenterExists.excenter_n…Affine.Simplex.ExcenterExists.signedInfDist_excenter · cited by 3ExcenterExists.signedInfD…Affine.Triangle.eq_excenter_singleton_of_oangle_eq_add_pi · cited by 2Triangle.eq_excenter_sing…Affine.Triangle.eq_incenter_or_eq_excenter_singleton_of_oangle_eq · cited by 2Triangle.eq_incenter_or_e…Real · cited by 25697RealNormedAddCommGroup · cited by 15752NormedAddCommGroupFinset · cited by 13712FinsetInnerProductSpace · cited by 3523InnerProductSpaceMetricSpace · cited by 1684MetricSpaceNormedAddTorsor · cited by 1325NormedAddTorsorAffine.Simplex · cited by 471Affine.SimplexEuclideanGeometry.Sphere.center · cited by 181Sphere.centerAffine.Simplex.exsphere · cited by 20Simplex.exsphereSimplex.excenterCITED BYCITES

Cites9

Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.

Cited by64

Results whose statement or proof uses this declaration.