Theorems · Inductive type · convex and discrete geometry
PointedCone.IsFaceOf
{R : Type u_1} →
{M : Type u_2} →
[inst : Semiring R] →
[inst_1 : PartialOrder R] →
[inst_2 : IsOrderedRing R] →
[inst_3 : AddCommGroup M] → [inst_4 : Module R M] → PointedCone R M → PointedCone R M → PropA sub-cone F of a pointed cone C is a face of C if any two points of C with a strictly
positive combination in F are also in F.
- Defined in
- Mathlib.Geometry.Convex.Cone.Face.Basic
- Cited by
- 34 results in Mathlib
- Foundations
- Depth 35 from the axioms · uses propext, Classical.choice, Quot.sound
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites6
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- Modulestatement · cited by 20,661
- Semiringstatement · cited by 13,802
- AddCommGroupstatement · cited by 12,871
- PartialOrderstatement · cited by 6,410
- IsOrderedRingstatement · cited by 777
- PointedConestatement · cited by 151
Cited by36
Results whose statement or proof uses this declaration.
- PointedCone.IsFaceOf.mem_of_smul_add_memstatement and proof · cited by 13
- PointedCone.IsFaceOf.lestatement and proof · cited by 10
- PointedCone.IsFaceOf.mem_of_add_mem_leftstatement and proof · cited by 5
- PointedCone.IsFaceOf.mapstatement and proof · cited by 3
- PointedCone.IsFaceOf.casesOnstatement and proof · cited by 2
- PointedCone.IsFaceOf.infstatement and proof · cited by 2
- PointedCone.IsFaceOf.mem_of_add_mem_rightstatement and proof · cited by 2
- PointedCone.IsFaceOf.comapstatement and proof · cited by 1
- PointedCone.IsFaceOf.fststatement and proof · cited by 1
- PointedCone.IsFaceOf.mem_of_smul_add_smul_mem_leftstatement and proof · cited by 1
- PointedCone.IsFaceOf.mem_of_sum_memstatement and proof · cited by 1
- PointedCone.IsFaceOf.of_comap_surjectivestatement and proof · cited by 1