∫ Утверждение Mathlib
isCornerFree_empty
Mathlib.Combinatorics.Additive.Corner.Defs
URI: https://scilib.ai/kg/mathlib#isCornerFree_empty
∫ Утверждение Mathlib
Mathlib.Combinatorics.Additive.Corner.Defs
URI: https://scilib.ai/kg/mathlib#isCornerFree_empty