∫ Утверждение Mathlib
of_subsingleton
Mathlib.Algebra.Group.UniqueProds.Basic
URI: https://scilib.ai/kg/mathlib#UniqueMul.of_subsingleton
∫ Утверждение Mathlib
Mathlib.Algebra.Group.UniqueProds.Basic
URI: https://scilib.ai/kg/mathlib#UniqueMul.of_subsingleton