Theorems · Definition · geometry
EuclideanGeometry.oangle
{V : Type u_1} →
{P : Type u_2} →
[inst : NormedAddCommGroup V] →
[inst_1 : InnerProductSpace ℝ V] →
[inst_2 : MetricSpace P] →
[NormedAddTorsor V P] →
[hd2 : Fact (Module.finrank ℝ V = 2)] → [Module.Oriented ℝ V (Fin 2)] → P → P → P → Real.AngleThe oriented angle at p₂ between the line segments to p₁ and p₃, modulo 2 * π. If
either of those points equals p₂, this is 0. See EuclideanGeometry.angle for the
corresponding unoriented angle definition.
- Cited by
- 188 results in Mathlib
- Foundations
- Depth 252 from the axioms, rests on 7,313 definitions · uses propext, Classical.choice, Quot.sound
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites12
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- Realstatement and proof · cited by 25,697
- NormedAddCommGroupstatement and proof · cited by 15,752
- InnerProductSpacestatement and proof · cited by 3,523
- Factstatement and proof · cited by 2,726
- Module.finrankstatement and proof · cited by 1,770
- MetricSpacestatement and proof · cited by 1,684
- NormedAddTorsorstatement and proof · cited by 1,325
- VSub.vsubproof · cited by 817
- Real.Anglestatement · cited by 518
- Orientation.oangleproof · cited by 205
- Module.Orientedstatement and proof · cited by 190
- EuclideanGeometry.oproof · cited by 48
Cited by188
Results whose statement or proof uses this declaration.
- EuclideanGeometry.oangle_rotate_signstatement and proof · cited by 27
- EuclideanGeometry.oangle_eq_angle_of_sign_eq_onestatement and proof · cited by 24
- EuclideanGeometry.angle_eq_pi_div_two_of_oangle_eq_pi_div_twostatement and proof · cited by 13
- EuclideanGeometry.angle_rev_eq_pi_div_two_of_oangle_eq_pi_div_twostatement and proof · cited by 12
- EuclideanGeometry.oangle.congr_simpstatement and proof · cited by 9
- EuclideanGeometry.left_ne_of_oangle_eq_pi_div_twostatement and proof · cited by 9
- EuclideanGeometry.oangle_revstatement · cited by 8
- EuclideanGeometry.oangle_self_rightstatement · cited by 7
- Sbtw.oangle_eq_rightstatement · cited by 6
- Sbtw.oangle_eq_leftstatement · cited by 5
- EuclideanGeometry.oangle_eq_of_dist_orthogonalProjection_eqstatement and proof · cited by 5
- EuclideanGeometry.oangle_self_leftstatement · cited by 5