Theorem: Matroid.nonloop_iff_not_mem_cl_empty (Matroid/Loop.lean)

State before:
α : Type u_1
β : Type u_2
M N : Matroid α
e f : α
B L L' I X Y Z F C K : Set α
he : autoParam (e ∈ M.E) _auto✝
⊢ M.Nonloop e ↔ e ∉ M.cl ∅
Tactic:
rw [Nonloop, loop_iff_mem_cl_empty, and_iff_left he]
State after:
no goals