rw [loop_iff_mem_cl_empty, M.empty_indep.mem_cl_iff_of_not_mem (not_mem_empty e),insert_emptyc_eq]
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
⊢ M.Dep {e} ↔ M.Loop e
no goals