∫ Утверждение Mathlib
mem_ground_of_mem_closure
Mathlib.Combinatorics.Matroid.Closure
URI: https://scilib.ai/kg/mathlib#Matroid.mem_ground_of_mem_closure
∫ Утверждение Mathlib
Mathlib.Combinatorics.Matroid.Closure
URI: https://scilib.ai/kg/mathlib#Matroid.mem_ground_of_mem_closure