∫ Утверждение Mathlib
mem_Gamma_one
Mathlib.NumberTheory.ModularForms.CongruenceSubgroups
URI: https://scilib.ai/kg/mathlib#CongruenceSubgroup.mem_Gamma_one
∫ Утверждение Mathlib
Mathlib.NumberTheory.ModularForms.CongruenceSubgroups
URI: https://scilib.ai/kg/mathlib#CongruenceSubgroup.mem_Gamma_one