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Theorems · Inductive type · number theory

Subgroup.IsArithmetic

Subgroup (GL (Fin 2) ℝ) → Prop

A subgroup of GL(2, ℝ) is arithmetic if it is commensurable with the image of SL(2, ℤ).

Defined in
Mathlib.NumberTheory.ModularForms.ArithmeticSubgroups
Cited by
41 results in Mathlib
Foundations
Depth 95 from the axioms · uses propext, Classical.choice, Quot.sound

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