Mathlib Map

Theorems · Theorem · geometry

Affine.Simplex.ExcenterExists.sum_excenterWeights_eq_one

∀ {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 → ∑ i, s.excenterWeights signs i = 1

Alias of the reverse direction of Affine.Simplex.sum_excenterWeights_eq_one_iff.

Defined in
Mathlib.Geometry.Euclidean.Incenter
Cited by
11 results in Mathlib
Foundations
Depth 188 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.ExcenterExists.excenter_mem_affineSpan_range · cited by 5ExcenterExists.excenter_m…Affine.Simplex.ExcenterExists.excenter_notMem_affineSpan_face · cited by 4ExcenterExists.excenter_n…Affine.Simplex.ExcenterExists.excenter_map · cited by 3ExcenterExists.excenter_m…Affine.Simplex.ExcenterExists.sSameSide_excenter_point_iff · cited by 2ExcenterExists.sSameSide_…Affine.Simplex.ExcenterExists.sSameSide_point_excenter_iff · cited by 2ExcenterExists.sSameSide_…Affine.Simplex.ExcenterExists.sign_signedInfDist_excenter · cited by 2ExcenterExists.sign_signe…Affine.Simplex.ExcenterExists.sOppSide_excenter_point_iff · cited by 1ExcenterExists.sOppSide_e…Affine.Simplex.ExcenterExists.sOppSide_point_excenter_iff · cited by 1ExcenterExists.sOppSide_p…Affine.Simplex.ExcenterExists.signedInfDist_excenter_eq_mul_sum_inv · cited by 1ExcenterExists.signedInfD…Affine.Simplex.ExcenterExists.affineCombination_eq_excenter_iff · cited by 1ExcenterExists.affineComb…Affine.Simplex.incenter_mem_interior · cited by 0Simplex.incenter_mem_inte…Real · cited by 25697RealNormedAddCommGroup · cited by 15752NormedAddCommGroupFinset · cited by 13712FinsetFinset.sum · cited by 5195Finset.sumInnerProductSpace · cited by 3523InnerProductSpaceFinset.univ · cited by 3473Finset.univMetricSpace · cited by 1684MetricSpaceNormedAddTorsor · cited by 1325NormedAddTorsorAffine.Simplex · cited by 471Affine.SimplexAffine.Simplex.ExcenterExists · cited by 53Simplex.ExcenterExistsAffine.Simplex.excenterWeights · cited by 32Simplex.excenterWeightsAffine.Simplex.sum_excenterWeights_eq_one_iff · cited by 3Simplex.sum_excenterWeigh…ExcenterExists.sum_excenterWe…CITED BYCITES

Cites12

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

Cited by11

Results whose statement or proof uses this declaration.