Theorems · Theorem · geometry

EuclideanGeometry.Cospherical.affineIndependent

∀ {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] {s : Set P},
  EuclideanGeometry.Cospherical s → ∀ {p : Fin 3 → P}, Set.range p ⊆ s → Function.Injective p → AffineIndependent ℝ p

Any three points in a cospherical set are affinely independent.

Defined in

Mathlib.Geometry.Euclidean.Sphere.Basic

Cited by

2 results in Mathlib

Foundations

Depth 172 from the axioms · uses propext, Classical.choice, Quot.sound

Assumes

NormedAddCommGroupInnerProductSpaceMetricSpaceNormedAddTorsor