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