Matroid.IsRkFinite.closure_eq_closure_of_subset_of_forall_insert

∀ {α : Type u_1} {M : Matroid α} {X Y : Set α},
  M.IsRkFinite X → X ⊆ Y → (∀ e ∈ Y \ X, M.eRk (insert e X) ≤ M.eRk X) → M.closure X = M.closure Y

Defined in: Mathlib.Combinatorics.Matroid.Rank.ENat
Cited by: 1 results in Mathlib
Foundations: Depth 114 from the axioms · uses propext, Classical.choice, Quot.sound

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