Theorem: Matroid.Nonloop.cl_point (Matroid/Flat.lean)

State before:
α : Type u_1
M : Matroid α
I F X Y F' F₀ F₁ F₂ P L H H₁ H₂ H' B C K : Set α
e f : α
he : M.Nonloop e
⊢ M.er (M.cl {e}) = 1
Tactic:
rw [er_cl_eq, he.indep.er, encard_singleton]
State after:
no goals