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Theorems · Theorem · geometry

collinear_iff_not_affineIndependent_set

∀ {k : Type u_1} {V : Type u_2} {P : Type u_3} [inst : DivisionRing k] [inst_1 : AddCommGroup V] [inst_2 : Module k V]
  [inst_3 : AddTorsor V P] {p₁ p₂ p₃ : P}, Collinear k {p₁, p₂, p₃} ↔ ¬AffineIndependent k ![p₁, p₂, p₃]

Three points are collinear if and only if they are not affinely independent.

Defined in
Mathlib.LinearAlgebra.AffineSpace.FiniteDimensional
Cited by
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Foundations
Depth 124 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
DivisionRingAddCommGroupModuleAddTorsor

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