∫ Утверждение Mathlib
sphere_zero_subset
Mathlib.Combinatorics.Additive.AP.Three.Behrend
URI: https://scilib.ai/kg/mathlib#Behrend.sphere_zero_subset
∫ Утверждение Mathlib
Mathlib.Combinatorics.Additive.AP.Three.Behrend
URI: https://scilib.ai/kg/mathlib#Behrend.sphere_zero_subset