Theorem: Matroid.Indep.insert_basis_iff_mem_cl (Matroid/Closure.lean)

State before:
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
hI : M.Indep I
⊢ M.Basis I (insert e I) ↔ e ∈ M.cl I
Tactic:
rw [hI.cl_eq_setOf_basis_insert, mem_setOf]
State after:
no goals