simp_rw [cl_eq_sInter_of_subset X, subset_sInter_iff, mem_setOf, and_imp]
α : Type u_1
ι : Type u_2
M : Matroid α
F I J X✝ Y B C R : Set α
e f x y : α
X : Set α
hX : autoParam (X ⊆ M.E) _auto✝
⊢ Y ⊆ M.cl X ↔ ∀ (F : Set α), M.Flat F → X ⊆ F → Y ⊆ F
no goals