∫ Утверждение Mathlib
inclusion_rfl
Mathlib.Order.BooleanSubalgebra
URI: https://scilib.ai/kg/mathlib#BooleanSubalgebra.inclusion_rfl
∫ Утверждение Mathlib
Mathlib.Order.BooleanSubalgebra
URI: https://scilib.ai/kg/mathlib#BooleanSubalgebra.inclusion_rfl