Affine.Triangle.affineSpan_orthocenter_point_le_altitude
∀ {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] (t : Affine.Triangle ℝ P) (i : Fin 3),
line[ℝ, t.orthocenter, t.points i] ≤ Affine.Simplex.altitude t iThe affine span of the orthocenter and a vertex is contained in the altitude.
- Defined in
- Mathlib.Geometry.Euclidean.MongePoint
- Cited by
- 1 results in Mathlib
- Foundations
- Depth 198 from the axioms · uses propext, Classical.choice, Quot.sound
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites18
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- Setstatement · cited by 53,352
- Realstatement and proof · cited by 25,697
- NormedAddCommGroupstatement and proof · cited by 15,752
- SetLike.coeproof · cited by 8,199
- InnerProductSpacestatement and proof · cited by 3,523
- MetricSpacestatement and proof · cited by 1,684
- NormedAddTorsorstatement and proof · cited by 1,325
- AffineSubspacestatement · cited by 871
- affineSpanstatement · cited by 417
- Affine.Simplex.pointsstatement · cited by 391
- Set.singleton_subset_iffproof · cited by 206
- Affine.Trianglestatement and proof · cited by 75
Cited by1
Results whose statement or proof uses this declaration.
- Affine.Triangle.altitude_replace_orthocenter_eq_affineSpanproof · cited by 1