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Theorems · Theorem · number theory

IsHeckeTriple.commensurable_conjAct_right

∀ {G : Type u_1} [inst : Group G] {Δ : Submonoid G} {H₁ H₂ : Subgroup G} [IsHeckeTriple Δ H₁ H₂] (g : ↥Δ),
  (ConjAct.toConjAct ↑g • H₂).Commensurable H₁

Conjugating the right subgroup of a Hecke triple (H₁, Δ, H₂) by an element of Δ gives a subgroup commensurable with the left one.

Defined in
Mathlib.NumberTheory.HeckeRing.Defs
Cited by
0 results in Mathlib
Foundations
Depth 108 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
GroupIsHeckeTriple

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