Theorems · Definition · linear algebra
SameRay
(R : Type u_1) →
[inst : CommSemiring R] →
[inst_1 : PartialOrder R] →
[IsStrictOrderedRing R] → {M : Type u_2} → [inst_3 : AddCommMonoid M] → [Module R M] → M → M → PropTwo vectors are in the same ray if either one of them is zero or some positive multiples of them are equal (in the typical case over a field, this means one of them is a nonnegative multiple of the other).
- Defined in
- Mathlib.LinearAlgebra.Ray
- Cited by
- 149 results in Mathlib
- Foundations
- Depth 12 from the axioms, rests on 122 definitions · uses no axioms
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites5
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- Modulestatement and proof · cited by 20,661
- AddCommMonoidstatement and proof · cited by 12,281
- CommSemiringstatement and proof · cited by 10,911
- PartialOrderstatement and proof · cited by 6,410
- IsStrictOrderedRingstatement and proof · cited by 2,490
Cited by151
Results whose statement or proof uses this declaration.
- AffineSubspace.WSameSideproof · cited by 52
- AffineSubspace.WOppSideproof · cited by 50
- SameRay.congr_simpstatement and proof · cited by 18
- SameRay.rflstatement · cited by 11
- SameRay.sameRay_commstatement · cited by 11
- SameRay.symmstatement and proof · cited by 9
- ray_eq_iffstatement · cited by 8
- sameRay_neg_iffstatement · cited by 8
- SameRay.norm_addstatement and proof · cited by 7
- SameRay.sameRay_nonneg_smul_leftstatement · cited by 7
- SameRay.zero_rightstatement · cited by 7
- SameRay.sameRay_nonneg_smul_rightstatement and proof · cited by 6