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Theorems · Theorem · number theory

IsHeckeTriple.le_commensurator_right

∀ {G : Type u_1} {inst : Group G} {Δ : Submonoid G} (H₁ : Subgroup G) {H₂ : Subgroup G} [self : IsHeckeTriple Δ H₁ H₂],
  Δ ≤ (Subgroup.Commensurable.commensurator H₂).toSubmonoid

The submonoid Δ lies in the commensurator of the right subgroup (hence, the subgroups being commensurable, also in that of the left one; see le_commensurator_left).

Defined in
Mathlib.NumberTheory.HeckeRing.Defs
Cited by
4 results in Mathlib
Foundations
Depth 106 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
IsHeckeTriple

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