Theorem: Matroid.Indep.not_mem_cl_iff_of_not_mem (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
heI : e ∉ I
he : autoParam (e ∈ M.E) _auto✝
⊢ e ∉ M.cl I ↔ M.Indep (insert e I)
Tactic:
rw [hI.not_mem_cl_iff, and_iff_left heI]
State after:
no goals