Matroid.mem_closure_insert

∀ {α : Type u_2} {M : Matroid α} {X : Set α} {e f : α},
  e ∉ M.closure X → e ∈ M.closure (insert f X) → f ∈ M.closure (insert e X)

Defined in: Mathlib.Combinatorics.Matroid.Closure
Cited by: 1 results in Mathlib
Foundations: Depth 87 from the axioms · uses propext, Classical.choice, Quot.sound

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