Theorems · Theorem · group theory
Subgroup.inf_relIndex_left
∀ {G : Type u_1} [inst : Group G] (H K : Subgroup G), (H ⊓ K).relIndex H = K.relIndex H- Defined in
- Mathlib.GroupTheory.Index
- Cited by
- 2 results in Mathlib
- Foundations
- Depth 94 from the axioms · uses propext, Classical.choice, Quot.sound
- Assumes
- Group
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.
- Groupstatement and proof · cited by 6,238
- Subgroupstatement and proof · cited by 3,593
- inf_commproof · cited by 139
- Subgroup.relIndexstatement and proof · cited by 72
- Subgroup.inf_relIndex_rightproof · cited by 8
Cited by2
Results whose statement or proof uses this declaration.
- Subgroup.Commensurable.isCusp_iffproof · cited by 2
- Subgroup.Commensurable.properlyDiscontinuousSMul_iffproof · cited by 0