∫ Утверждение Mathlib
mk_surjective
Mathlib.GroupTheory.PresentedGroup
URI: https://scilib.ai/kg/mathlib#PresentedGroup.mk_surjective
∫ Утверждение Mathlib
Mathlib.GroupTheory.PresentedGroup
URI: https://scilib.ai/kg/mathlib#PresentedGroup.mk_surjective